CN211423439U - Ball valve with lengthened valve rod structure - Google Patents
Ball valve with lengthened valve rod structure Download PDFInfo
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- CN211423439U CN211423439U CN201922190858.XU CN201922190858U CN211423439U CN 211423439 U CN211423439 U CN 211423439U CN 201922190858 U CN201922190858 U CN 201922190858U CN 211423439 U CN211423439 U CN 211423439U
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- valve rod
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- rod
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Abstract
The utility model discloses a ball valve with add long valve rod structure relates to valve technical field, including valve body, valve gap, case ball and valve rod, valve body and valve gap fixed connection constitute and are used for placing the valve body chamber of case ball, the one end of valve rod with case ball fixed connection, the other end fixedly connected with of valve rod adds the long valve rod, the upper end of adding the long valve rod is connected with the handle bar, it is equipped with the casing to add the long valve rod outward, the casing with valve body fixed connection. The utility model discloses be equipped with the extension valve rod, solve current ball valve and easily hinder the inconvenient problem of people and ball valve installation space when limited under the environment of high temperature or low temperature medium.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to ball valve with extension valve rod structure.
Background
Ball valves (ball valve) come out in 50 s of the 20 th century, and with the rapid development of science and technology and the continuous improvement of production process and product structure, the ball valves have rapidly developed into a main valve class in short 40 years. The use of ball valves is increasing year by year in countries with industrially developed western industries.
In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere, and a circular through hole or a channel passes through the axis of the cock body. The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment.
However, in the ball valve, a common valve rod is used for opening and closing the valve to easily hurt people in the environment of high-temperature or low-temperature media. In addition, when the installation space of the ball valve is limited, such as the height of the valve is under the ground or underground, the ball valve switch adopting the common valve rod is inconvenient.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a ball valve with extension valve rod structure solves the current ball valve and easily hinders people and the inconvenient problem of switch when ball valve installation space is limited under the environment of high temperature or low temperature medium.
(II) technical scheme
In order to solve the technical problem, the utility model provides a technical scheme does:
the utility model provides a ball valve with add long valve rod structure, including valve body, valve gap, case ball and valve rod, valve body and valve gap fixed connection constitute and are used for placing the valve body chamber of case ball, the one end of valve rod with case ball fixed connection, the other end fixedly connected with of valve rod adds long valve rod, the upper end of adding long valve rod is connected with the handle pole, it is equipped with the casing to add long valve rod outward, the casing with valve body fixed connection.
Preferably, the joint of the valve rod and the valve body is sequentially sleeved with a lower filler, a middle filler, an upper filler, a large compression ring and a butterfly spring from bottom to top.
Preferably, graphite packing is arranged above the butterfly spring, and a compression nut is arranged above the graphite packing.
Preferably, the lower filler, the middle filler and the upper filler are annular bodies respectively, the upper surface of the lower filler is provided with a first rib, the lower surface of the middle filler is provided with a first groove matched with the first rib, the upper surface of the middle filler is provided with a second rib, and the lower surface of the upper filler is provided with a second groove matched with the second rib.
Wherein, preferably, the lower filler, the middle filler and the upper filler are PTFE fillers respectively.
Wherein, preferably, one side above the compression nut is provided with a positioning sleeve for limiting the displacement of the handle rod.
(III) advantageous effects
The technical scheme provided by the utility model, compared with prior art, following beneficial effect has:
1. the utility model discloses an extension valve rod is installed to the ball valve, under high warm or low temperature medium environment, has improved operator's security when using extension valve rod, avoids the emergence of the wounded incident of ball valve.
2. This with neotype ball valve when installation space restriction, for example the valve height is in the subsurface or in the pit, artifical switching is inconvenient, designs the extension valve rod structure, can increase to the height that is fit for the people operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other embodiments can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic structural view of a ball valve with an elongated valve rod structure according to the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1. the valve comprises a valve body, 2 parts of a valve cover, 3 parts of a valve core ball, 4 parts of a valve rod, 5 parts of a handle rod, 6 parts of a valve body cavity, 7 parts of an elongated valve rod, 8 parts of lower filler, 9 parts of filler, 10 parts of upper filler, 11 parts of a large compression ring, 12 parts of a butterfly spring, 13 parts of graphite filler, 14 parts of a compression nut, 15 parts of a positioning sleeve
Detailed Description
The technical solution of the present invention will be described clearly and completely below with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the embodiment provides a ball valve with extension valve rod 7 structure, including valve body 1, valve gap 2, valve core ball 3 and valve rod 4, valve body 1 and valve gap 2 fixed connection constitute the valve body chamber 6 that is used for placing valve core ball 3, the one end and the valve core ball 3 fixed connection of valve rod 4, the other end fixedly connected with extension valve rod 7 of valve rod 4, the upper end of extension valve rod 7 is connected with handle pole 5, extension valve rod 7 is equipped with the casing outward, casing and valve body 1 fixed connection. In the embodiment, the valve rod 4 and the extension valve rod 7 are connected in a manner that the valve rod 4 is designed into a flat shaft, the extension valve rod 7 is designed into a flat groove, and the transmission torque of the valve rod and the extension valve rod is realized by the cooperation of the flat shaft with the flat groove. The connection manner of the valve rod 4 and the extension valve rod 7 is not limited to this, and other conventional fixed connection manners may be used. The ball valve of this embodiment has improved operator's security when using extension valve rod 7 under high warm or low temperature medium environment, avoids the ball valve to hinder the emergence ball valve of people's incident when installation space restriction, for example the valve height is in the ground or in the pit, and manual switching is inconvenient, designs extension valve rod 7 structure, can increase to the height that is fit for people's operation.
Wherein, the junction of valve rod 4 and valve body 1 is equipped with down filler 8, filler 9 from the top down in proper order, goes up filler 10, big clamping ring 11 and butterfly spring 12. The lower filler 8, the middle filler 9 and the upper filler 10 are respectively PTFE fillers.
With the increase of the service time, the filler is continuously aged or burned, the sealing pretightening force of the filler is reduced due to the factors, leakage is finally caused, and the valve disc spring is installed to play a role in delaying the reduction of the sealing pretightening force of the filler so as to realize continuous sealing. Graphite packing 13 is arranged above the butterfly spring 12, the graphite packing 13 is composed of two parts of graphite packing 13 and a graphite gasket, and a compression nut 14 is arranged above the graphite packing 13. PTFE and graphite double packing and other sealing designs of the valve body 1 have the fireproof function. The outer high temperature resistant graphite packing 13 and graphite gasket can still function as a seal when the inner PTFE is burned off due to a media fire.
Wherein, lower filler 8, middle filler 9, go up filler 10 and be the tourus respectively, the upper surface of lower filler 8 is equipped with first bead, and the lower surface of middle filler 9 is equipped with the first recess with first bead matched with, and the upper surface of middle filler 9 is equipped with the second bead, goes up filler 10 lower surface and is equipped with the second recess with second bead matched with. When the compression nut 14 compresses, the lower packing 8, the middle packing 9 and the upper packing 10 can be tightly combined, and the sealing effect is further improved.
Wherein, a positioning sleeve 15 for limiting the displacement of the handle bar 5 is arranged at one side above the compression nut 14.
It should be noted that, in this document, terms such as "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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a ball valve with extension valve rod structure, includes valve body, valve gap, case ball and valve rod, the valve body with valve gap fixed connection constitutes and is used for placing the valve body chamber of case ball, the one end of valve rod with case ball fixed connection, its characterized in that: the other end fixedly connected with extension valve rod of valve rod, the upper end of extension valve rod is connected with the handle pole, be equipped with the casing outside the extension valve rod, the casing with valve body fixed connection.
2. A ball valve with an extended stem configuration as defined in claim 1, wherein: the valve rod with the junction of valve body from up the cover is equipped with down filler, well filler, goes up filler, big clamping ring and butterfly spring from down in proper order.
3. A ball valve with an extended stem configuration as defined in claim 2, wherein: graphite packing is arranged above the butterfly spring, and a compression nut is arranged above the graphite packing.
4. A ball valve with an extended stem configuration as defined in claim 2, wherein: the lower filler, the middle filler and the upper filler are respectively annular bodies, the upper surface of the lower filler is provided with a first convex edge, the lower surface of the middle filler is provided with a first groove matched with the first convex edge, the upper surface of the middle filler is provided with a second convex edge, and the lower surface of the upper filler is provided with a second groove matched with the second convex edge.
5. A ball valve with an extended stem configuration as defined in claim 2, wherein: the lower filler, the middle filler and the upper filler are PTFE fillers respectively.
6. A ball valve with an extended stem configuration as defined in claim 3, wherein: and a positioning sleeve for limiting the displacement of the handle rod is arranged on one side above the compression nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922190858.XU CN211423439U (en) | 2019-12-09 | 2019-12-09 | Ball valve with lengthened valve rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922190858.XU CN211423439U (en) | 2019-12-09 | 2019-12-09 | Ball valve with lengthened valve rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211423439U true CN211423439U (en) | 2020-09-04 |
Family
ID=72287824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922190858.XU Active CN211423439U (en) | 2019-12-09 | 2019-12-09 | Ball valve with lengthened valve rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211423439U (en) |
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2019
- 2019-12-09 CN CN201922190858.XU patent/CN211423439U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.96 Zizhu Road, Zhengzhou hi tech Industrial Development Zone, Henan Province Patentee after: Henan Fujia fluid control technology Co., Ltd Address before: No.96 Zizhu Road, Zhengzhou hi tech Industrial Development Zone, Henan Province Patentee before: Henan taoen Machinery Co.,Ltd. |