Valve with adjustable switch stroke and pipeline system

Abstract

The utility model discloses a valve with an adjustable switch stroke and a pipeline system, and relates to the technical field of valve equipment. The valve with the adjustable switch stroke comprises a valve body, limiting assemblies and a sensing assembly, the valve body is provided with a first stand column and a second stand column, the limiting assemblies are in sliding connection with the first stand column, the sensing assembly is in sliding connection with the second stand column, and the two limiting assemblies limit the upper limit and the lower limit of a switch of the valve body respectively. The two sensing assemblies are aligned with the two limiting assemblies correspondingly and sense the upper limit and the lower limit of a switch of the valve body. The pipeline system comprises a pipeline, and a valve with an adjustable opening and closing stroke is installed on the pipeline. According to the valve with the adjustable switch stroke and the pipeline system, the height of the limiting assembly and the height of the sensing assembly can be adjusted, limiting changes of the valve in different periods are adapted, and the beneficial effects of being adjustable in limiting stroke, flexible to use and accurate in feedback are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to a valve and a pipeline system with adjustable opening and closing stroke. Background Art

[0002] A gate valve is a closing and opening member, i.e., a gate plate, and the moving direction of the gate plate is perpendicular to the fluid direction. The gate valve is sealed by the contact between the valve seat and the gate plate. Usually, the sealing surface is surfacing welded with metal materials to increase wear resistance, such as surfacing welding 1Cr13, STL6, stainless steel, etc. According to different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve.

[0003] At present, when manually opening or closing a gate valve, it is easy to have the situation that the opening and closing are not in place, which affects the reliability of valve use. Therefore, a stroke limit switch is adopted. The conventional stroke limit switch is of a swinging type, and the travel switch is toggled through the head of the anti-rotation clamping plate to achieve position transmission. However, both the limit structure and the position of the travel switch are not adjustable. After the valve works for a long time, due to the wear of the worm and worm gear or the gear, the opening and closing position of the gate valve changes, and finally the limit switch feedback signal received by the travel switch is distorted.

[0004] Therefore, the prior art needs to be improved. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the limit of the existing gate valve is not adjustable and the use is not flexible. The purpose is to provide a valve and a pipeline system with adjustable opening and closing stroke, and corresponding technical means are adopted, which have the beneficial effects of adjustable limit stroke, flexible use, and accurate feedback.

[0006] The utility model is realized through the following technical solutions:

[0007] In a first aspect, the utility model provides a valve with adjustable opening and closing stroke, which comprises a valve body, a limit component and an induction component. The valve body is provided with a first column and a second column. The limit component is slidably connected with the first column, and the induction component is slidably connected with the second column. The two limit components respectively limit the upper limit and the lower limit of the opening and closing of the valve body, and the two induction components are respectively aligned with the two limit components and sense the upper limit and the lower limit of the opening and closing of the valve body.

[0008] In the above technical solution, according to the actual needs, the limit component and the induction component are moved to appropriate positions on the first column and the second column. When the valve body needs to be closed, the switch of the valve descends. When the switch reaches the lower limit, it is blocked by the limit component located on the lower side, and at the same time, it also touches the induction component. The induction component transmits a signal to the control terminal (such as the computer in the duty room) to remind the staff that the closing is in place. When the valve body needs to be opened, the switch of the valve rises. When the switch reaches the upper limit, it is blocked by the limit component located on the upper side, and at the same time, it also touches the induction component. The induction component transmits a signal to the control terminal to remind the staff that the opening is in place.

[0009] Further, in the present utility model, a clamping plate is provided on the switch of the valve body, and the clamping plate is adapted to the limit component and the induction component.

[0010] Further, in the present utility model, a first bolt is provided on the two clamping plates.

[0011] Further, in the present utility model, the limit component includes a U-shaped clamp that resists the clamping plate. The U-shaped clamp is provided with a circular groove that clamps the first column, and the end of the U-shaped clamp is provided with a second bolt and a nut for adjusting the tightness.

[0012] Further, in the present utility model, a gasket that is abutted by the nut is provided on the second bolt.

[0013] Further, in the present utility model, the induction component includes a travel switch and a mounting sleeve that are connected to each other. The mounting sleeve is slidably connected to the second column, and the mounting sleeve is provided with a screw for adjusting the tightness.

[0014] Further, in the present utility model, a handle for screwing is provided on the screw.

[0015] Further, in the present utility model, both the first column and the second column are provided with scale marks indicating the height.

[0016] Further, in the present utility model, the two first columns are horizontally symmetric, and the two second columns are vertically symmetric.

[0017] In the second aspect, the present utility model further provides a pipeline system, which includes a pipeline, and a valve with adjustable switch travel is installed on the pipeline.

[0018] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0019] The valve with adjustable switch stroke of the present utility model can move the limit component and the induction component to appropriate positions on the first column and the second column according to the actual needs. Even if the switch position changes due to the wear of the worm and worm gear or the gear after the gate valve is used for a long time, the height of the limit component and the induction component can be adjusted to adapt to the limit changes of the valve in different periods. When the valve body needs to be closed, the switch of the valve descends. When the switch reaches the lower limit, it is blocked by the limit component located on the lower side, and at the same time, it also touches the induction component. The induction component transmits a signal to the control terminal (such as the computer in the duty room) to remind the staff that the closing is in place. When the valve body needs to be opened, the switch of the valve rises. When the switch reaches the upper limit, it is blocked by the limit component located on the upper side, and at the same time, it also touches the induction component. The induction component transmits a signal to the control terminal to remind the staff that the opening is in place. Both the opening and closing can be recorded by the control terminal and can be used for electric valves to achieve remote monitoring.

[0020] The pipeline system of the present utility model includes a pipeline, and a valve with adjustable switch stroke is installed on the pipeline to control the fluid in the pipeline. The limit stroke of the valve with adjustable switch stroke is adjustable, and it is more flexible to use and the feedback is more accurate. Brief Description of the Drawings

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0022] Figure 1 It is a partial schematic diagram of the valve with adjustable switch stroke of the present utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of the valve with adjustable switch stroke of the present utility model;

[0024] Figure 3 It is a structural schematic diagram of the limit component of the present utility model.

[0025] Marks in the drawings and corresponding component names: 1-valve body, 2-limit component, 201-U-shaped clamp, 202-circular groove, 203-second bolt, 204-nut, 205-gasket, 3-induction component, 301-travel switch, 302-mounting sleeve, 303-screw, 4-first column, 5-second column, 6-clamping plate, 601-first bolt, 7-scale mark. Detailed Description of the Embodiment

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and do not limit the present utility model. The following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present utility model, "a plurality" represents at least two. In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Embodiment 1

[0029] Embodiment 1 of the present utility model provides a valve with adjustable switch stroke, as Figures 1-3 shown, and the specific structure is described as follows.

[0030] Combined with Figure 1 and Figure 2 shown, the valve with adjustable switch stroke of the present utility model mainly includes three parts: a valve body 1, a limit component 2, and an induction component 3. Among them, the valve body 1 is used to control the on-off state of the pipeline and control the flow of fluid; the limit component 2 is used to block the on-off movement of the valve body 1; the induction component 3 is used to monitor and feedback whether the on-off of the valve body 1 is in place.

[0031] Furthermore, combined with Figure 1 shown, the valve body 1 adopts a gate valve widely used in the prior art. As a component for pressure pipelines, the gate valve is often applied to key parts of nuclear power pipeline systems.

[0032] Combined with Figure 1 and Figure 2As shown, two columns 4 and 5 are respectively installed. Both column 4 and column 5 are made of metal rods or metal pipes and are fixed on the valve body 1 by welding. As Figure 2 shown, the two columns 4 are horizontally symmetric with respect to the switching center of the valve body 1, and the two columns 5 are vertically symmetric with respect to the switching center of the valve body 1. The extending directions of the lengths of columns 4 and 5 are parallel to the switching movement direction of the valve body 1.

[0033] In some embodiments of this embodiment, in combination with Figure 1 , Figure 2 and Figure 3 shown, the limiting component 2 is mainly composed of a U-shaped clamp 201, a bolt 203 and a nut 204. A circular groove 202 is opened inside the U-shaped clamp 201. The circular groove 202 is used to accommodate column 4, and then the U-shaped clamp 201 is installed on column 4.

[0034] Furthermore, in combination with Figure 2 and Figure 3 shown, the bolt 203 passes through both ends of the U-shaped clamp 201, and then a nut 204 is screwed onto the bolt 203. By tightening the nut 204, the end of the U-shaped clamp 201 is tightened, the circular groove 202 is tightened, and the U-shaped clamp 201 clamps column 4, so as to fix the limiting component 2 on column 4. After loosening the nut 204, the U-shaped clamp 201 no longer clamps column 4, and thus the position of the U-shaped clamp 201 on column 4 can be adjusted.

[0035] It should be noted that, in combination with Figure 3 shown, a gasket 205 is installed on the bolt 203. The nut 204 contacts the gasket 205, which serves to prevent the nut 204 from loosening.

[0036] In some embodiments of this embodiment, in combination with Figure 1 and Figure 2 shown, the induction component 3 includes a travel switch 301 and a mounting sleeve 302. The mounting sleeve 302 is in the form of a round sleeve. The travel switch 301 is fixedly installed on the mounting sleeve 302 by screws. The mounting sleeve 302 is sleeved on column 5, and the mounting sleeve 302 can slide up and down along column 5. A screw 303 is provided on the mounting sleeve 302. After the screw 303 is tightened, it abuts against the surface of column 5, which plays a role in fixing the mounting sleeve 302 and the travel switch 301. After the screw 303 is loosened, it does not contact the surface of column 5, and the mounting sleeve 302 and the travel switch 301 can slide up and down.

[0037] It should be noted that, in order to facilitate turning the screw 303, a handle is fixedly installed on the outside of the screw 303. The handle can be a plum blossom handle, which is convenient for screwing.

[0038] In some embodiments of the present embodiment, in combination with Figure 1 and Figure 2 As shown, a clamping plate 6 is installed on the switch of the valve body 1. The two clamping plates 6 clamp the switch, and the two clamping plates 6 are connected and fixed by a first bolt 601. The two travel switches 301 are respectively located on the upper side positions of the two second columns 5, and the two travel switches 301 are respectively located on the lower side positions of the two second columns 5; the two U-shaped clips 201 are respectively located on the upper side positions of the two first columns 4, and the two U-shaped clips 201 are respectively located on the lower side positions of the two first columns 4.

[0039] It should be noted that, in combination with Figure 1 As shown, scale marks 7 indicating height are provided on both the first column 4 and the second column 5, which is convenient for accurately adjusting the heights of the U-shaped clips 201 and the travel switches 301 according to the scale marks 7.

[0040] Embodiment 2

[0041] The present embodiment provides a pipeline system, including a pipeline, and a valve with adjustable switch travel in Embodiment 1 is installed on the pipeline.

[0042] The working principle of the valve with adjustable switch travel and the pipeline system of the present utility model is as follows:

[0043] The valve with adjustable switch travel of the present utility model can move the limit component 2 and the induction component 3 to appropriate positions on the first column 4 and the second column 5 according to the actual needs. Even if the switch position changes due to the wear of the worm gear or gear after the gate valve is used for a long time, the heights of the limit component 2 and the induction component 3 can be adjusted to adapt to the limit changes of the valve in different periods. When the switch of the valve body 1 is opened, the switch rises and the clamping plate 6 also rises until the top ends of the two ends of the clamping plate 6 are blocked by the U-shaped clips 201 on the upper side of the two first columns 4, and the switch reaches the upper limit position. At this time, the top of the middle of the clamping plate 6 also touches the travel switch 301. When the switch of the valve body 1 is closed, the switch descends and the clamping plate 6 also descends until the bottom ends of the two ends of the clamping plate 6 are blocked by the U-shaped clips 201 on the lower side of the two first columns 4, and the switch reaches the lower limit position. At this time, the bottom of the middle of the clamping plate 6 also touches the travel switch 301. The travel switch 301 transmits the signal to the control terminal (the computer in the duty room) in a wired or wireless manner, reminding the staff that the switch is opened or closed in place. Both opening and closing can be recorded by the control terminal, which can be used for electric valves to achieve remote monitoring.

[0044] In summary, the present utility model provides a valve with adjustable switch stroke, which includes a valve body 1, a limit component 2 and an induction component 3. The valve body 1 is provided with a first column 4 and a second column 5. The limit component 2 is slidably connected to the first column 4, and the induction component 3 is slidably connected to the second column 5. The two limit components 2 respectively limit the upper and lower limits of the opening and closing of the valve body 1, and the two induction components 3 are respectively aligned with the two limit components 2 and sense the upper and lower limits of the opening and closing of the valve body 1. The opening and closing of the valve body 1 is provided with a clamping plate 6, and the clamping plate 6 is adapted to the limit component 2 and the induction component 3. The two clamping plates 6 are provided with a first bolt 601. The limit component 2 includes a U-shaped clamp 201 that resists the clamping plate 6. The U-shaped clamp 201 is provided with a circular groove 202 that clamps the first column 4. The end of the U-shaped clamp 201 is provided with a second bolt 203 and a nut 204 for adjusting the tightness. The second bolt 203 is provided with a gasket 205 abutted by the nut 204. The induction component 3 includes a travel switch 301 and a mounting sleeve 302 that are connected to each other. The mounting sleeve 302 is slidably connected to the second column 5, and the mounting sleeve 302 is provided with a screw 303 for adjusting the tightness. The screw 303 is provided with a handle for screwing. Both the first column 4 and the second column 5 are provided with scale marks 7 indicating the height. The two first columns 4 are symmetrically arranged horizontally, and the two second columns 5 are symmetrically arranged vertically. The present utility model also provides a pipeline system, which includes a pipeline, and a valve with adjustable switch stroke is installed on the pipeline.

[0045] Therefore, the valve with adjustable switch stroke and the pipeline system of the present utility model have the beneficial effects of adjustable limit stroke, flexible use and accurate feedback.

[0046] The specific embodiments described above have further elaborated on the purpose, technical solutions and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A valve with adjustable switch stroke, characterized in that, It includes a valve body (1), a limit component (2) and an induction component (3). The valve body (1) is provided with a first column (4) and a second column (5). The limit component (2) is slidably connected to the first column (4), and the induction component (3) is slidably connected to the second column (5). The two limit components (2) respectively limit the upper and lower limits of the opening and closing of the valve body (1), and the two induction components (3) are respectively aligned with the two limit components (2) and sense the upper and lower limits of the opening and closing of the valve body (1).

2. The valve with adjustable switch stroke according to claim 1, characterized in that, The opening and closing of the valve body (1) is provided with a clamping plate (6), and the clamping plate (6) is adapted to the limit component (2) and the induction component (3).

3. The valve with adjustable switch stroke according to claim 2, characterized in that, The two clamping plates (6) are provided with a first bolt (601).

4. The valve with adjustable switch stroke according to claim 2, characterized in that, The limit component (2) includes a U-shaped clamp (201) that resists the clamping plate (6). The U-shaped clamp (201) is provided with a circular groove (202) that clamps the first column (4). The end of the U-shaped clamp (201) is provided with a second bolt (203) and a nut (204) for adjusting the tightness.

5. The valve with adjustable switch stroke according to claim 4, wherein, The second bolt (203) is provided with a gasket (205) abutted by the nut (204).

6. The valve with adjustable switch stroke according to claim 2, characterized in that, The induction component (3) includes a travel switch (301) and a mounting sleeve (302) that are connected to each other. The mounting sleeve (302) is slidably connected to the second column (5), and the mounting sleeve (302) is provided with a screw (303) for adjusting the tightness.

7. The valve with adjustable switch stroke according to claim 6, wherein The screw (303) is provided with a handle for screwing.

8. The valve with adjustable switch stroke according to claim 1, characterized in that, Both the first column (4) and the second column (5) are provided with scale marks (7) indicating height.

9. The valve with adjustable switch stroke according to claim 1, characterized in that The two first columns (4) are horizontally symmetrical, and the two second columns (5) are vertically symmetrical.

10. A pipeline system, characterized in that, It includes a pipeline, and the switch with adjustable travel as described in Claim 1 is installed on the pipeline.

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