阅读说明：本技术 一种截止阀阀杆结构 (Stop valve rod structure ) 是由 朱仰磊 于 2021-11-26 设计创作，主要内容包括：本发明提供一种截止阀阀杆结构,包括阀杆本体,所述阀杆本体下部形成有阀瓣,所述阀杆本体内设置有多边形棱柱体,所述多边形棱柱体上部形成有螺纹柱,所述螺纹柱的上部镶嵌有磁铁,所述阀杆本体的上部对应设置有阀杆把手,所述阀杆把手上设置有与多边形棱柱体对应的多边形凹槽、连通多边形凹槽且与螺纹柱对应的通孔,所述螺纹柱穿过通孔通过螺母与阀杆把手固定,所述多边形棱柱体自下往上均匀布置有若干销孔,能够在紧急状态时及时对阀杆进行继续操作,使阀门关闭或打开,能够很好的避免事故的发生。(The invention provides a stop valve rod structure, which comprises a valve rod body, wherein a valve clack is formed at the lower part of the valve rod body, a polygonal prism is arranged in the valve rod body, a threaded column is formed at the upper part of the polygonal prism, a magnet is embedded at the upper part of the threaded column, a valve rod handle is correspondingly arranged at the upper part of the valve rod body, a polygonal groove corresponding to the polygonal prism and a through hole communicated with the polygonal groove and corresponding to the threaded column are arranged on the valve rod handle, the threaded column penetrates through the through hole and is fixed with the valve rod handle through a nut, and a plurality of pin holes are uniformly arranged on the polygonal prism from bottom to top.)

1. A stop valve rod structure is characterized by comprising a valve rod body (1), a valve clack (2) is formed at the lower part of the valve rod body (1), a polygonal prism (3) is arranged in the valve rod body (1), a threaded column (4) is formed at the upper part of the polygonal prism (3), a magnet (5) is embedded on the upper part of the threaded column (4), a valve rod handle (6) is correspondingly arranged on the upper part of the valve rod body (1), the valve rod handle (6) is provided with a polygonal groove (601) corresponding to the polygonal prism (3) and a through hole (602) which is communicated with the polygonal groove (601) and corresponds to the threaded column (4), the threaded column (4) passes through the through hole (602) and is fixed with the valve rod handle (6) through the nut (401), the polygonal prism body (3) is uniformly provided with a plurality of pin holes (301) from bottom to top.

2. A stop valve stem structure according to claim 1, wherein the polygonal prism (3) is a quadrangular prism.

3. A stop valve stem arrangement according to claim 1, wherein the through hole (602) is a circular through hole.

4. A stop valve stem construction according to claim 1, wherein the upper part of the magnet (5) is higher than the upper top surface of the threaded post (4).

5. A stop valve stem structure according to claim 1, wherein the valve flap (2) and the valve stem body (1) are integrally formed.

6. A stop valve stem structure according to claim 1, wherein a second polygonal groove (101) corresponding to the polygonal prism (3) is formed in the valve stem body (1), and the polygonal prism (3) is in clearance fit with the second polygonal groove (101).

7. A stop valve stem structure according to claim 1, wherein the polygonal prism (3) is made of ferromagnetic material.

Technical Field

The invention relates to the technical field of stop valves, in particular to a valve rod structure of a stop valve.

Background

The stop valve is a valve which is frequently used in life, the friction force between sealing surfaces is small in the opening and closing process of the stop valve, the stop valve is durable, the opening height is small, the stop valve is easy to manufacture and convenient to maintain, and the stop valve is suitable for medium and low pressure and high pressure. The closing principle of the stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by means of the pressure of the valve rod, and the medium is prevented from flowing.

The valve rod is the essential part of stop valve, but because current valve body, valve rod all adopt the cast iron preparation usually, after long-time the use, can appear suddenly with the situation that the valve rod was twisted off, current valve when this kind of condition appears, can not continue to operate the valve rod again, very easily because of the untimely accident that appears in the operation, the result of use is not good.

Disclosure of Invention

In order to comprehensively solve the problems, particularly the defects in the prior art, the invention provides a valve rod structure of a stop valve, which can comprehensively solve the problems.

In order to achieve the purpose, the invention adopts the following technical means:

the utility model provides a stop valve rod structure, includes the valve rod body, valve rod body lower part is formed with the valve clack, this internal polygon prism that is provided with of valve rod, polygon prism upper portion is formed with the screw thread post, the upper portion of screw thread post is inlayed and is had magnet, the upper portion correspondence of valve rod body is provided with the valve rod handle, be provided with the polygon recess that corresponds with the polygon prism on the valve rod handle, communicate polygon recess and the through-hole that corresponds with the screw thread post, the screw thread post passes the through-hole and passes through the nut and fix with the valve rod handle, a plurality of pinhole have evenly been arranged to the polygon prism from bottom to top.

Preferably, the polygonal prism is a quadrangular prism.

Preferably, the through hole is a circular through hole.

Preferably, the upper part of the magnet is higher than the upper top surface of the threaded column.

Preferably, the valve clack and the valve rod body are integrally formed.

Preferably, a second polygonal groove corresponding to the polygonal prism is formed in the valve rod body, and the polygonal prism is in clearance fit with the second polygonal groove.

Preferably, the polygonal prism is made of a ferromagnetic material.

Compared with the prior art, the invention has the beneficial effects that:

the valve rod handle can be matched with the polygonal prism to continuously operate the valve rod when the valve rod is unscrewed, the valve rod can be continuously operated in time in an emergency state, the valve can be closed or opened, accidents can be well avoided, and the valve rod handle is simple in structure, convenient to manufacture and good in using effect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the valve stem body of the present invention.

Fig. 3 is a schematic cross-sectional view of the valve stem handle of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in fig. 1 to 3, the present invention provides a stop valve rod structure, which includes a valve rod body 1, wherein a valve flap 2 is formed at a lower portion of the valve rod body 1, a polygonal prism 3 is disposed in the valve rod body 1, a threaded post 4 is formed at an upper portion of the polygonal prism 3, a magnet 5 is embedded at an upper portion of the threaded post 4, a valve rod handle 6 is correspondingly disposed at an upper portion of the valve rod body 1, a polygonal groove 601 corresponding to the polygonal prism 3 and a through hole 602 communicating the polygonal groove 601 and corresponding to the threaded post 4 are disposed on the valve rod handle 6, the threaded post 4 passes through the through hole 602 and is fixed with the valve rod handle 6 through a nut 401, and a plurality of pin holes 301 are uniformly arranged from bottom to top on the polygonal prism 3.

The polygonal prism 3 is a quadrangular prism, and the processing is more convenient. Through-hole 602 is circular through-hole, can be better with the cooperation of screw thread post. The upper part of the magnet 5 is higher than the upper top surface of the threaded column 4. The valve clack 2 and the valve rod body 1 are integrally formed.

A second polygonal groove 101 corresponding to the polygonal prism 3 is formed in the valve rod body 1, the polygonal prism 3 is in clearance fit with the second polygonal groove 101, and the polygonal prism 3 can move in the second polygonal groove. The polygonal prism 3 is made of ferromagnetic materials.

The working principle is as follows: when the valve is normally used, the valve rod handle 6 drives the polygonal prism 3 to rotate, and then drives the valve rod body 1 to rotate, so as to drive the valve clack 2 to move, so as to realize the opening and closing of the valve, when the polygonal prism 3 breaks, the normal use of the valve rod body 1 cannot be influenced, when the valve rod body 1 and the polygonal prism 3 both break, at this time, the polygonal prism 3 with the broken upper part needs to be firstly detached, the polygonal prism 3 with the broken upper part is overturned, the polygonal prism 3 with the broken lower part is sucked by the magnet 5, the upper part of the polygonal prism 3 with the broken lower part of the lower door is pulled out to the outside of the valve rod body 1 with the broken lower part, the pulled polygonal prism 3 is grabbed by hands, the fixing pin is inserted into the pin hole 301, which is closest to the end part of the valve rod body 1, and the upper part of the pulled polygonal prism 3 is sleeved by the polygonal groove 601 of the valve rod handle 6, the rotating operation of the valve stem body 1 is continued.

The valve rod handle can be matched with the polygonal prism to continuously operate the valve rod when the valve rod is unscrewed, the valve rod can be continuously operated in time in an emergency state, the valve can be closed or opened, accidents can be well avoided, and the valve rod handle is simple in structure, convenient to manufacture and good in using effect.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.