CN219827919U - Internal lifting type low-temperature stop valve with switch indication structure - Google Patents
Internal lifting type low-temperature stop valve with switch indication structure Download PDFInfo
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- CN219827919U CN219827919U CN202320114496.XU CN202320114496U CN219827919U CN 219827919 U CN219827919 U CN 219827919U CN 202320114496 U CN202320114496 U CN 202320114496U CN 219827919 U CN219827919 U CN 219827919U
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- indicator
- valve
- type low
- hand wheel
- low temperature
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Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses an internal lifting type low-temperature stop valve with a switch indication structure, which comprises a valve body, a hand wheel, an indicator shell and an indication ring, wherein the hand wheel is arranged on the valve body; the hand wheel is penetrated by the upper valve rod and is configured to control the opening or closing of the inner lifting type low-temperature stop valve through anticlockwise or clockwise rotation; the upper surface of the indicator shell is fixedly connected to the hand wheel through a fixing piece, and an indication window is formed in the circumferential surface; the indicator housing having a cavity in which the indicator ring is received; the outer edge of the indicating ring is matched with the indicator shell through threads, and the circumference surface is provided with a mark for indicating the open and close states of the valve; the internal poppet type low temperature shut-off valve is configured to: when the hand wheel is rotated, the indicator ring is moved in a vertical direction relative to the indicator housing such that the indicator corresponding to the open and closed state of the valve is at the same level as the indicator window. The utility model enables an operator to display the opening and closing state of the valve by observing the switch indication structure in the switching process.
Description
Technical Field
The utility model relates to the technical field of fluid control valves, in particular to an internal lifting type low-temperature stop valve with a switch indication structure.
Background
Cryogenic valves generally refer to valves that operate at temperatures below-40 ℃. The device is mainly used for devices such as ethylene, liquefied natural gas devices, natural gas LPG, LNG storage tanks, receiving base stations, satellite stations, air separation equipment, petrochemical tail gas separation equipment, liquid oxygen, liquid hydrogen, liquid nitrogen, liquid argon, carbon dioxide low-temperature storage tanks, tank cars, pressure swing adsorption oxygen production and the like.
The existing internal lifting type low-temperature stop valve is generally a manual device, namely, the lifting of a valve rod is controlled by manually rotating a hand wheel, so that the opening and closing of the valve are controlled. Because the structural characteristics lead to in the valve opening and closing process, external hand wheel and upper valve rod only take place to rotate and do not produce axial displacement, and operating personnel can't judge the opening and the closing condition of valve through the vision.
Disclosure of Invention
The utility model aims to provide an internal lifting type low-temperature stop valve with a switch indication structure, so that the opening and closing states of the valve can be displayed by observing the switch indication structure in the switching process of the internal lifting type low-temperature stop valve.
The utility model discloses an internal lifting type low-temperature stop valve with a switch indication structure, which comprises: the valve comprises a valve body (1), a hand wheel (2), an indicator shell (3) and an indicator ring (4); wherein the method comprises the steps of
The hand wheel (2) is penetrated by the upper valve rod and is configured to control the opening or closing of the inner lifting type low-temperature stop valve through anticlockwise or clockwise rotation;
the upper surface of the indicator shell (3) is fixedly connected to the hand wheel (2) through a fixing piece, and an indicator window (302) is formed in the circumferential surface; the indicator housing (3) has a cavity in which an indicator ring (4) is accommodated;
the outer edge of the indicating ring (4) is matched with the indicator shell (3) through threads, and a mark (43) for indicating the open and closed states of the valve is arranged on the circumferential surface;
the inner poppet type low temperature shut-off valve is configured to: when the hand wheel (2) is moved in a vertical direction relative to the indicator housing (3), the indicator ring (4) is moved such that the indicator (43) corresponding to the valve open-closed state is located at the same level as the indicator window (302).
In a preferred embodiment, the logo (43) includes a color, text or symbol representing "on" and a color, text or symbol representing "off".
In a preferred embodiment, when the hand wheel (2) rotates anticlockwise, the internal poppet type low temperature shut-off valve is switched from a closed state to an open state, at which time the indicator ring (4) moves downwards in the indicator housing (3);
when the hand wheel (2) rotates clockwise, the inner lifting type low-temperature stop valve is switched from an open state to a closed state, and at the moment, the indicator ring (4) moves upwards in the indicator housing (3).
In a preferred embodiment, when the internal poppet type low temperature shut-off valve is in an open state, the position of the indicator ring (4) is moved down to a maximum displacement; and/or
The position of the indicator ring (4) is located at the top of the cavity inside the indicator housing (3) when the inner poppet type low temperature shut off valve is in the closed state.
In a preferred embodiment, the upper surface of the indicator housing (3) has a plurality of apertures (301) for the passage of fasteners.
In a preferred embodiment, the fixing member is a set screw (310).
In a preferred embodiment, the indicator ring (4) has an inner bore (41), the lower cavity of the inner bore (41) being fitted with the outer diameter of the valve body (1).
In a preferred embodiment, the upper part of the indicator ring (4) has two symmetrical half-moon shaped parallel planes for cooperation with a valve cover.
The utility model has at least the following beneficial technical effects:
1. for the lifting type low-temperature stop valve operated fully manually, the utility model enables the opening and closing states of the valve to be visualized and visualized; the open-close state of the valve can be judged by only observing the state of the indication window in the opening and closing process, and a simple and time-saving operation way is provided.
The numerous technical features described in the description of the present utility model are distributed among the various technical solutions, which can make the description too lengthy if all possible combinations of technical features of the present utility model (i.e., technical solutions) are to be listed. In order to avoid this problem, the technical features disclosed in the above summary of the utility model, the technical features disclosed in the following embodiments and examples, and the technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which should be regarded as having been described in the present specification) unless such a combination of technical features is technically impossible. For example, in one example, feature a+b+c is disclosed, in another example, feature a+b+d+e is disclosed, and features C and D are equivalent technical means that perform the same function, technically only by alternative use, and may not be adopted simultaneously, feature E may be technically combined with feature C, and then the solution of a+b+c+d should not be considered as already described because of technical impossibility, and the solution of a+b+c+e should be considered as already described.
Drawings
FIG. 1 is a front view of an internal poppet type low temperature shut off valve according to the present utility model;
FIG. 2 is an exploded view of an internal poppet type low temperature shut off valve according to the present utility model;
FIG. 3 is a partial cross-sectional view of an internal poppet type low temperature shut off valve according to the present utility model in a closed position;
FIG. 4 is a partial cross-sectional view of an internal poppet type low temperature shut off valve in an open position in accordance with the present utility model;
FIGS. 5A-5C are front, cross-sectional, A-A, top views of an indicator housing for an internal poppet type low temperature shut-off valve in accordance with the present utility model;
fig. 6A-6C are front, perspective, top views of an indicator of an internal poppet type low temperature shut off valve in accordance with the present utility model.
Reference numerals illustrate:
1-a valve body;
2-a hand wheel;
3-an indicator housing; 301-small holes; 302-an indication window; 303-indicator housing straight threads; 310-fixing screws;
4-indicating ring; 41-inner hole; 42-outer edge; 43-identification; 44-fixing holes;
5-upper valve rod; 6-a valve core assembly; 7-valve seat
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be understood by those skilled in the art that the claimed utility model may be practiced without these specific details and with various changes and modifications from the embodiments that follow.
The following outline of some of the innovative features of embodiments of the present utility model:
the internal lifting type low-temperature stop valve with the switch indication structure is shown in fig. 1 to 2, and comprises a valve body 1, a hand wheel 2, an indicator housing 3 and an indication ring 4. The hand wheel 2 is manually rotated anticlockwise to drive the valve rod in the valve body 1 to move upwards, so that the valve core is opened; by manually rotating the hand wheel 2 clockwise, the valve rod inside the valve body 1 is driven to move downwards, so that the valve is opened and closed.
The indicator ring 4 has two mating surfaces, an inner bore 41 and an outer rim 42, as shown in fig. 6A-6C. The outer edge 42 of the indicator ring has a straight thread which mates with the straight thread of the inner bore of the indicator housing 3. The lower cavity of the inner bore 41 mates with the outer diameter of the valve body 1. The upper part of the inner cavity of the indicator ring has two symmetrical half-moon shaped parallel planes, and the shape forms a fixing hole 44 which is matched with the two planes of the outer edge of the valve cover, so that the indicator ring 4 cannot rotate along with the indicator shell. When the indicator housing rotates with the hand wheel, the indicator ring 4 moves in the axial direction with the thread drive of the straight thread on the outer rim.
The indicator housing 3 is a thin-walled member having a U-shaped cross section as shown in FIGS. 5A-5C. The indicator housing 3 has a through hole at the center of the upper surface to be engaged with the valve stem. The bottom of the upper surface has two symmetrical apertures 301 for attaching the indicator housing to the hand wheel by set screws 310, as shown in figures 3-4. The inner wall of the indicator housing 3 has an indicator housing straight thread 303 which mates with the outer thread of the indicator ring. When the hand wheel 2 is rotated, the indicator housing rotates with the hand wheel about the axis. But not axially displaced.
The indicator window 302 is a through opening in the circumferential outer surface of the indicator housing, and may be one or more in number and may be in the shape of a kidney-shaped hole or a circular hole. The indicator window 302 may be used to display color or text symbol information on the indicator ring 4. The marks 43 are colors, letters or symbols on the outer edge of the indicating ring, etc. The attachment to the outer edge of the indicator ring may be accomplished by a variety of means including anodization, painting, laser printing, labeling, and the like. The indicia 43 includes a color, text or symbol that indicates that the valve is in an open state and also includes a color, text or symbol that indicates that the valve is in a closed state. In one embodiment, the indicator indicating that the valve is in the open state is located above the indicator indicating that the valve is in the open state in the vertical direction.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 3, the valve is in a closed state at this time. The valve closed state is set to an initial state, in which the indicator ring 4 is positioned at the top of the cavity inside the indicator housing 3. The color, text or symbol on the indicator ring 3 showing "off" is located at exactly the same level as the indicator window 302, through which the indication of "off" can be seen by the operator. The operator may determine that the valve is in the 'closed' state by observing the color, text or symbols in the indicator window.
The hand wheel of the valve is rotated anticlockwise, and the valve core of the valve is opened under the drive of the valve rod. At this time, the indicator housing 3 rotates counterclockwise together with the hand wheel, and the indicator ring 4 moves downward under the drive of the screw thread of the indicator housing. The distance of movement is equal to the number of turns of the hand wheel multiplied by the pitch of the threads on the indicator ring. The distance of the indicator moving up and down can be determined by adjusting the design tooth distance of the screw teeth. When the valve is fully open, the position of the indicator ring moves down to the maximum displacement, as shown in fig. 4. The color, text or symbol on the indicator ring that the logo 43 is "on" is now designed to be located exactly at the position of the indicator window. An indication window displays an indication of "on". The operator may determine that the valve is in the 'open' state by observing the color, text or symbols in the indicator window.
When the valve is closed from the open position, the hand wheel rotates clockwise. The indicator ring is also moved upward by the threads of the indicator housing, and when the valve is fully closed, the indicator ring moves upward to the maximum displacement. The color, text or symbol on the indicator ring that the logo 43 is "off is now designed to be located exactly at the position of the indicator window. The operator may determine that the valve is in the 'closed' state by observing the color, text or symbols in the indicator window.
It should be noted that in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. In the present patent application, if it is mentioned that an action is performed according to an element, it means that the action is performed at least according to the element, and two cases are included: the act is performed solely on the basis of the element and is performed on the basis of the element and other elements. Multiple, etc. expressions include 2, 2 times, 2, and 2 or more, 2 or more times, 2 or more.
This specification includes combinations of the various embodiments described herein. Separate references to "one embodiment" or a particular embodiment, etc., do not necessarily refer to the same embodiment; however, unless indicated as mutually exclusive or as would be apparent to one of skill in the art, the embodiments are not mutually exclusive. It should be noted that the term "or" is used in this specification in a non-exclusive sense unless the context clearly indicates otherwise or requires otherwise.
All references mentioned in this disclosure are to be considered as being included in the disclosure of the utility model in its entirety so that modifications may be made as necessary. Further, it is understood that various changes or modifications of the present utility model may be made by those skilled in the art after reading the above disclosure, and such equivalents are intended to fall within the scope of the utility model as claimed.
Claims (8)
1. An internal poppet type low temperature shut-off valve with a switch indicating structure, comprising: the valve comprises a valve body (1), a hand wheel (2), an indicator shell (3) and an indicator ring (4); wherein the method comprises the steps of
The hand wheel (2) is penetrated by the upper valve rod and is configured to control the opening or closing of the inner lifting type low-temperature stop valve through anticlockwise or clockwise rotation;
the upper surface of the indicator shell (3) is fixedly connected to the hand wheel (2) through a fixing piece, and an indicator window (302) is formed in the circumferential surface; the indicator housing (3) has a cavity in which an indicator ring (4) is accommodated;
the outer edge of the indicating ring (4) is matched with the indicator shell (3) through threads, and a mark (43) for indicating the open and closed states of the valve is arranged on the circumferential surface;
the inner poppet type low temperature shut-off valve is configured to: when the hand wheel (2) is rotated, the indicator ring (4) is moved in a vertical direction relative to the indicator housing (3) such that the indicator (43) corresponding to the valve open-closed state is located at the same level as the indicator window (302).
2. The internal poppet type low temperature shut-off valve according to claim 1, wherein said logo (43) comprises a color, text or symbol representing "on" and a color, text or symbol representing "off".
3. The internal poppet type low temperature shut-off valve according to claim 1, characterized in that when the hand wheel (2) is rotated anticlockwise, the internal poppet type low temperature shut-off valve is switched from closed to open, at which time the indicator ring (4) moves downwards in the indicator housing (3);
when the hand wheel (2) rotates clockwise, the inner lifting type low-temperature stop valve is switched from an open state to a closed state, and at the moment, the indicator ring (4) moves upwards in the indicator housing (3).
4. The internal poppet type low temperature shut-off valve according to claim 1, wherein the position of the indicator ring (4) is moved down to a maximum displacement when the internal poppet type low temperature shut-off valve is in an open state; and/or
The position of the indicator ring (4) is located at the top of the cavity inside the indicator housing (3) when the inner poppet type low temperature shut off valve is in the closed state.
5. An internal poppet type low temperature shut-off valve according to claim 1, wherein the upper surface of the indicator housing (3) has a plurality of small holes (301) for the passage of fasteners.
6. The internal poppet type low temperature shut-off valve as defined in claim 1 or claim 5 wherein the fixing member is a fixing screw (310).
7. Internal poppet type low temperature shut-off valve according to claim 1, characterized in that the indicator ring (4) has an inner bore (41), the lower cavity of the inner bore (41) cooperating with the outer diameter of the valve body (1).
8. An internal poppet type low temperature shut off valve according to claim 1, wherein the upper part of the indicator ring (4) has two symmetrical half moon shaped parallel planes for cooperation with a valve cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114496.XU CN219827919U (en) | 2023-01-19 | 2023-01-19 | Internal lifting type low-temperature stop valve with switch indication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114496.XU CN219827919U (en) | 2023-01-19 | 2023-01-19 | Internal lifting type low-temperature stop valve with switch indication structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827919U true CN219827919U (en) | 2023-10-13 |
Family
ID=88284182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320114496.XU Active CN219827919U (en) | 2023-01-19 | 2023-01-19 | Internal lifting type low-temperature stop valve with switch indication structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827919U (en) |
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2023
- 2023-01-19 CN CN202320114496.XU patent/CN219827919U/en active Active
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