CN216666599U

CN216666599U - Valve opening and closing lifting identification stroke rod structure and valve

Info

Publication number: CN216666599U
Application number: CN202122644415.0U
Authority: CN
Inventors: 张磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-06-03
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a stroke rod structure of a valve opening and closing lifting mark and a valve. The valve opening and closing lifting mark stroke rod structure comprises a bracket, a connecting seat and a mark stroke rod, wherein the bracket is provided with an upper support plate and a lower support plate which extend out relative to the side part of the bracket; static seal and sliding seal are kept between the outer ring of the identification stroke rod and the connecting seat, an induction ball and a nut in threaded connection with the identification stroke rod are fixedly mounted on the identification stroke rod, and a spring sleeved on the identification stroke rod is arranged between the nut and the upper support plate. The valve cover disclosed by the utility model can be used for identifying the opening and closing of the valve, so that the purpose of mounting the flow-limiting shaft lever at the center of the valve cover is achieved.

Description

Valve opening and closing lifting identification stroke rod structure and valve

Technical Field

The utility model relates to a stroke rod structure of a valve opening and closing lifting mark and a valve with the same, and belongs to the field of valves.

Background

Referring to fig. 10 and 11, a stroke rod 13 of the conventional valve is fixedly connected with a guide main shaft 14 for opening and closing the valve, and when the valve is opened and closed, the stroke rod 13 moves up and down along with the guide main shaft 14, and in this installation form, a flow limiting shaft cannot be installed to limit the static flow of the valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stroke rod structure of a valve opening and closing lifting mark and a valve.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a stroke rod structure of a valve opening and closing lifting mark is characterized by comprising

A bracket having an upper support plate and a lower support plate extending from opposite sides of the bracket,

a connecting seat fixedly arranged on the lower support plate, an

One end of the identification stroke rod is inserted into the connecting seat, and the other end of the identification stroke rod penetrates out of the upper support plate and is supported on the upper support plate;

static seal and sliding seal are kept between the outer ring of the identification stroke rod and the connecting seat, an induction ball and a nut in threaded connection with the identification stroke rod are fixedly mounted on the identification stroke rod, and a spring sleeved on the identification stroke rod is arranged between the nut and the upper support plate.

According to the embodiment of the utility model, the utility model can be further optimized, and the following is the technical scheme formed after optimization:

in one preferred embodiment, an electronic inductor or a travel switch in contact with the induction ball is mounted on the bracket.

Based on the same invention concept, the utility model also provides a valve, which comprises a valve body, a valve cover and a piston arranged in the valve body, and is characterized in that the valve cover is provided with the valve opening and closing lifting mark stroke rod structure; the connecting seat is fixedly and hermetically connected with the valve cover; one end of the identification stroke rod extends into the inner cavity of the valve and is in contact with the piston, and the identification stroke rod can axially move relative to the valve cover; the mounting position of the connecting seat is not arranged on the central position of the valve cover.

In one preferred embodiment, the attachment seat is mounted inwardly of the valve cover.

In one preferred embodiment, a flow-limiting shaft extending into the inner cavity of the valve is mounted on the center of the valve cover, the contact position of the flow-limiting shaft and the valve cover is sealed, and the flow-limiting shaft can axially move relative to the valve cover.

In one preferred embodiment, the identification trip rod is arranged perpendicular to the end surface of the valve cover.

The utility model discloses a valve opening and closing lifting mark stroke rod structure, which consists of a support, a connecting seat connected with a valve cover, a mark stroke rod, a spring, a nut and a sensing ball, wherein the support is fixed on the connecting seat; an electronic inductor or a travel switch is arranged on the bracket and can be contacted with the induction ball, the shape of the induction ball can be designed according to needs, the material can be selected according to needs, and the installation positions of the installed electronic inductor or travel switch and induction ball can be adjusted and set; the installation position of the valve opening and closing lifting identification stroke rod structure is arranged in the inner side of the valve cover, and the optional position where the bottom of the identification stroke rod can be contacted with the piston is marked; the identification stroke rod is horizontally vertical to the valve cover; the identification stroke rod is inserted into the inner cavity of the valve and can axially move relative to the valve cover; the installation position of the valve opening and closing lifting identification stroke rod structure is not arranged on the central position of the valve cover, a flow limiting shaft rod extending into the inner cavity of the valve is preferably installed on the central position of the valve cover, the contact position of the flow limiting shaft rod and the valve cover is sealed, and the flow limiting shaft rod can axially move relative to the valve cover.

Compared with the prior art, the utility model has the beneficial effects that: the stroke rod structure of the lifting mark for opening and closing the valve can not only have the lifting recognition function of opening and closing the valve, but also have the function of controlling the static flow of the valve.

The stroke rod structure of the valve opening and closing lifting mark can be arranged in series valves developed by the inventor, such as Chinese patent application numbers CN2020114868265, CN202023037584X, CN2021112736001, CN 2021226289028, CN 2021112759465 and the like.

Drawings

FIG. 1 is a schematic structural view of a valve opening/closing lifting mark stroke rod according to an embodiment of the present invention;

FIG. 2 is a schematic sectional front view of an embodiment of a valve opening/closing lift flag stroke rod structure mounted on a diaphragm-free shaft sleeve spring Z-type liquid control valve, the valve being in a closed state;

FIG. 3 is a schematic sectional elevation view of an embodiment of a valve opening and closing lift flag travel bar arrangement mounted on a diaphragm-less shaft sleeve spring Z-type liquid control valve, showing the valve in an open state;

FIG. 4 is a schematic sectional front view of an embodiment of a valve opening/closing lift flag stroke rod structure mounted on a diaphragm-free shaft sleeve spring K-type liquid control valve, the valve being in a closed state;

FIG. 5 is a schematic sectional front view of an embodiment of a valve opening/closing lift flag stroke rod structure mounted on a diaphragm-free shaft sleeve spring K-type liquid control valve, showing the valve in an open state;

FIG. 6 is a schematic sectional front view of an embodiment of a valve opening and closing lift flag travel rod structure mounted on a diaphragm-less shaft sleeve spring liquid control valve, the valve in the closed state;

FIG. 7 is a schematic sectional front view of an embodiment of a valve opening and closing lift flag travel rod arrangement mounted on a diaphragm-less shaft sleeve spring fluid control valve, the valve in the open position;

FIG. 8 is a schematic sectional front view of an embodiment of a valve opening/closing lift flag stroke lever structure mounted on a conventional valve, the view being in a closed state;

FIG. 9 is a schematic sectional front view of an embodiment of a valve opening/closing lift flag stroke rod structure mounted on a conventional valve, which is shown in an open state;

FIG. 10 is a schematic elevational, sectional view of a prior art valve stem mounting embodiment, shown in the closed position;

fig. 11 is a schematic sectional front view of a conventional valve stem mounting embodiment, shown in an open position.

In the figure:

the device comprises a support 1, a connecting seat 2, a mark stroke rod 3, a spring 4, a nut 5, an induction ball 6, a valve cover 7, an outer ring 8 of the mark stroke rod, the inner side 9 of the valve cover, a piston 10, a valve inner cavity 11, a flow-limiting shaft rod 12, a stroke rod 13, a guide spindle 14 and a hand wheel 15.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the valve opening/closing lifting identification stroke rod structure of the present embodiment includes a support 1, a connecting seat 2, an identification stroke rod 3, a spring 4, a nut 5, and an induction ball 6. The support 1 is fixed on the connecting seat 2, the identification stroke rod 3 is inserted into the connecting seat 2, the outer ring 8 of the identification stroke rod and the connecting seat 2 are statically sealed and slidably sealed, the induction ball 6 is fixedly installed on the identification stroke rod 3, the nut 5 is installed on the identification stroke rod 3, the spring 4 is sleeved in the identification stroke rod 3, and the nut 5 can vertically move to adjust the elastic force of the spring 4.

As shown in fig. 2, 3, 4, 5, 6, 7, 8 and 9, the valve opening and closing lifting identification stroke rod structure can be applied to different types of valves, and the connecting seat 2 is fixedly and hermetically connected with the valve cover 7. In addition, the electronic inductor or the travel switch arranged on the bracket 1 can be contacted with the induction ball 6, the shape of the induction ball 6 can be designed according to the requirement, the material can be selected according to the requirement, and the installation position of the arranged electronic inductor or the travel switch and the induction ball 6 can be adjusted and set according to the requirement.

The installation position of the valve opening and closing lifting identification stroke rod structure is arranged in the inner side 9 of the valve cover, and the optional position where the bottom of the stroke rod 3 can be contacted with the piston 10 is identified. The marking stroke rod 3 is arranged perpendicular to the end surface of the valve cover 7. The identification stroke rod 3 is inserted into the valve inner cavity 11, the identification stroke rod 3 can axially move relative to the valve cover 7, when the installation position is not on the central position of the valve cover 7, a flow limiting shaft rod 12 extending into the valve inner cavity 11 is preferably installed on the central position of the valve cover 7, the contact position of the flow limiting shaft rod 12 and the valve cover 7 is sealed, and the flow limiting shaft rod 12 can axially move relative to the valve cover 7.

The working principle is as follows:

when the valve is closed, the marking stroke rod 3 is pressed by the spring 4 to be pushed into contact with the piston 10, when the valve is opened, the piston 4 moves, the force for moving the piston 4 is larger than the force for pressing the marking stroke rod 4 by the spring 4, and therefore the marking stroke rod 4 moves along with the piston 4. When the identification stroke rod 11 moves, the induction ball 6 fixedly installed on the stroke rod 2 also moves along with the identification stroke rod 4 and contacts with an electronic inductor or a contact of a stroke switch installed on the bracket 1 after moving, the appearance of the induction ball 6 can be designed according to needs, the material can be selected according to needs, and the installation positions of the electronic inductor or the stroke switch and the induction ball 6 can be adjusted and set, so that the electronic inductor or the stroke switch can transmit required signals.

The pressure of the valve inner cavity 11 has a size according to different working condition requirements, when the pressure in the valve inner cavity 11 reaches a certain value, the identification stroke rod 3 can be pushed by the pressure in the valve inner cavity 11, the height of the adjusting nut 5 can eliminate the pushing of the pressure in the valve inner cavity 11 to the identification stroke rod 3, and therefore the identification stroke rod 3 cannot malfunction.

The position of the marking stroke rod 3 is deviated from the center of the valve cover 7, and a flow-limiting shaft rod 12 extending into the inner cavity 11 of the valve is arranged at the center of the valve cover 7, so that the opening degree of the piston 4 can be limited, and the static flow limitation of the valve can be realized.

The above-described embodiments are set forth so that this disclosure will be thorough and complete, and will not be limited by any theory presented in the preceding claims, which may suggest themselves to those skilled in the art after reading this disclosure and all equivalents thereof that fall within the scope of the utility model as defined in the claims appended hereto.

Claims

1. A stroke rod structure of a valve opening and closing lifting mark is characterized by comprising

A bracket (1) having an upper support plate (101) and a lower support plate (102) extending laterally with respect to the bracket (1),

a connecting seat (2) fixedly arranged on the lower support plate (102), and

one end of the identification stroke rod (3) is inserted into the connecting seat (2), and the other end of the identification stroke rod penetrates out of the upper support plate (101) and is supported on the upper support plate (101);

the static seal and the sliding seal are kept between the outer ring (8) of the identification stroke rod (3) and the connecting seat (2), an induction ball (6) and a nut (5) in threaded connection with the identification stroke rod (3) are fixedly mounted on the identification stroke rod (3), and a spring sleeved on the identification stroke rod (3) is arranged between the nut (5) and the upper support plate (101).

2. The stroke rod structure of the valve opening and closing lifting mark of claim 1, wherein an electronic inductor or a stroke switch which is in contact with the induction ball (6) is arranged on the bracket (1).

3. A valve, comprising a valve body, a valve cover (7) and a piston (10) arranged in the valve body, wherein the valve cover (7) is provided with a valve opening and closing lifting mark stroke rod structure as claimed in claim 1 or 2;

the connecting seat (2) is fixedly and hermetically connected with the valve cover (7); one end of the identification stroke rod (3) extends into the valve inner cavity (11) and is in contact with the piston (10), and the identification stroke rod (3) can axially move relative to the valve cover (7);

the installation position of the connecting seat (2) is not arranged on the center position of the valve cover (7).

4. Valve according to claim 3, wherein the attachment seat (2) is mounted within the inner side (9) of the valve cover.

5. A valve according to claim 3, characterized in that a flow-restricting shaft (12) extending into the valve cavity (11) is mounted centrally on the valve cover (7), the contact between the flow-restricting shaft (12) and the valve cover (7) being sealed, the flow-restricting shaft (12) being axially movable relative to the valve cover (7).

6. Valve according to claim 3, wherein the marking travel rod (3) is arranged perpendicular to the end face of the valve cover (7).