CN110939752A

CN110939752A - Top-mounted ball valve

Info

Publication number: CN110939752A
Application number: CN201911301617.6A
Authority: CN
Inventors: 黄汉敏; 吴敏珊; 郑炳灿; 温耀信; 王文化; 谭敬罕; 冯毅强; 陈堪夏
Original assignee: ZHONGSHAN KINGDOME FLUID CONTROL EQUIPMENT CO Ltd
Current assignee: ZHONGSHAN KINGDOME FLUID CONTROL EQUIPMENT CO Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-03-31

Abstract

The invention discloses a top-mounted ball valve, which comprises: the ball body is provided with a plane and a cambered surface, and the cambered surface is provided with a pore channel; the valve body is provided with a valve cavity, an inflow channel, an outflow channel and an upper channel which are communicated with the valve cavity, and two vertical parts which are oppositely arranged and matched with the plane are arranged in the upper channel; the two valve seats are arranged and are positioned between the ball body and the valve body; the valve cover is connected with the valve body and covers the upper part of the upper channel; the valve rod, the valve gap is worn to locate by the valve rod, and the valve rod passes through the spread groove and is connected with the spheroid. When the ball body is installed, the plane surface of the ball body faces the vertical parts and is installed in the valve cavity through the upper channel, then the ball body is rotated to the pore channel to form a fluid channel with the inflow channel and the outflow channel, the distance between the two vertical parts is smaller than the diameter of the ball body, the vertical parts of the upper channel can limit the ball body, so that a pressing plate is not needed, and the number of parts is small; the valve seat is not easy to damage, the assembly is convenient and fast, the structure is compact, and the processing cost is lower.

Description

Top-mounted ball valve

Technical Field

The invention relates to the technical field of ball valves, in particular to an upper-mounted ball valve.

Background

At present, the upper-mounted ball valve is widely applied to devices such as petroleum and natural gas pipelines, oil extraction, oil refining, petrochemical industry, chemical industry and the like. The upper-mounted ball valve is fast and simple to disassemble on a pipeline and convenient to maintain. Existing ball valves fit a ball into a valve cavity of a valve body. The ball valve is characterized in that an opening communicated with a valve cavity is usually formed in the valve body, the opening is processed into an inverted cone-shaped wedge-shaped structure, a ball body and a valve seat are pressed into the valve cavity along the opening and are installed in the valve cavity, and the ball valve is limited by a pressing plate.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the prior art and provides an upper-mounted ball valve which is convenient to assemble and compact in structure.

The upper-mounted ball valve according to the embodiment of the invention comprises: the ball body is provided with two planes which are arranged oppositely and an arc surface positioned between the two planes, one of the planes is provided with a connecting groove, and the arc surface is provided with a pore passage which penetrates through the ball body; the ball valve comprises a valve body, a ball body and a valve seat, wherein the valve body is provided with a valve cavity, an inflow channel, an outflow channel and an upper channel which are communicated with the valve cavity, the ball body is arranged in the valve cavity through the upper channel, two vertical parts which are arranged oppositely and matched with the plane are arranged in the upper channel, and the distance between the two vertical parts is smaller than the diameter of the ball body; the two valve seats are symmetrically arranged on two sides in the valve cavity and are positioned between the ball body and the valve body; the valve cover is connected with the valve body and covers the upper part of the upper channel; the valve rod, the valve rod wears to locate the valve gap, just the valve rod passes through the spread groove with the spheroid is connected.

The upper-mounted ball valve provided by the embodiment of the invention at least has the following technical effects: by adopting the structure, when the ball body is installed, the plane of the ball body faces the vertical parts and is installed in the valve cavity through the upper channel, then the ball body is rotated to the pore channel to form a fluid channel with the inflow channel and the outflow channel, and the distance between the two vertical parts is smaller than the diameter of the ball body, so that the vertical parts of the upper channel can limit the ball body, a pressing plate is not needed, and the number of parts is small; because the valve seat is arranged in the valve cavity in advance, the ball body and the valve seat are not required to be pressed into the valve cavity together, the valve seat is not easy to damage, the assembly is convenient and fast, the structure is compact, and the processing cost is low.

According to some embodiments of the invention, the valve cover is removably connected to the valve body.

According to some embodiments of the invention, the fitting of the valve cover and the valve body is provided with a sealing gasket.

According to some embodiments of the invention, the valve cover is provided with a fixing seat through which the valve rod passes.

According to some embodiments of the invention, a packing is disposed between the valve cover and the valve rod, a gland is sleeved on the valve rod and located between the valve cover and the fixing seat, one end of the gland abuts against the packing, and the other end of the gland abuts against the fixing seat.

According to some embodiments of the invention, the valve stem is provided with a handle cooperating with the valve stem.

According to some embodiments of the invention, a positioning structure for limiting a rotation angle of the handle is provided between the valve cover and the handle.

According to some embodiments of the invention, the positioning structure comprises a positioning column and a positioning convex part matched with the positioning column, the positioning column is arranged on the valve cover, and the two positioning convex parts are arranged on the handle.

According to some embodiments of the present invention, the positioning protrusion has a first connecting hole, the positioning post has a positioning plate, and the positioning plate has a second connecting hole matching with the first connecting hole.

According to some embodiments of the invention, the positioning column is detachably connected with the positioning plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a top-loading ball valve according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the top-loading ball valve shown in FIG. 1;

FIG. 3 is a schematic view of the valve body and ball shown in FIG. 1;

fig. 4 is a schematic cross-sectional view of a sphere.

Reference numerals:

the ball body 10, the plane 11, the connecting groove 111, the through hole 1111 arc surface 12 and the pore channel 13;

the valve body 20, the valve chamber 21, the upper passage 22, the vertical portion 221;

the valve seat 30, the valve cover 40, the fixed seat 41 and the gland 42;

valve rod 50, sealing gasket 60, filler 70, handle 80;

positioning structure 90, positioning convex part 91, first connecting hole 911, positioning column 92, positioning plate 921, second connecting hole 9211.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in fig. 1, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if several, multiple, greater than, less than, exceeding, etc. occur, several means are one or more, several means are two or more, greater than, less than, exceeding, etc. are understood as excluding the essential numbers, and greater than, less than, within, etc. are understood as including the essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Referring to fig. 1, the top-loading ball valve according to the embodiment of the present invention includes a ball 10, a valve body 20, a valve stem 50, a valve cap 40, and a handle 80.

Referring to fig. 1 to 4, in the embodiment of the present invention, the ball further includes a valve seat 30, the ball 10 has two planes 11 disposed opposite to each other and an arc surface 12 located between the two planes 11, one of the planes 11 is provided with a connecting groove 111, and the arc surface 12 is provided with a duct 13 penetrating through the ball 10; the valve body 20 is provided with a valve cavity 21, an inflow channel, an outflow channel and an upper channel 22 which are communicated with the valve cavity 21, the ball 10 is arranged in the valve cavity 21 through the upper channel 22, two vertical parts 221 which are oppositely arranged and matched with the plane 11 are arranged in the upper channel 22, and the distance between the two vertical parts 221 is smaller than the diameter of the ball 10; the two valve seats 30 are symmetrically arranged at two sides in the valve cavity 21, and the valve seats 30 are positioned between the ball 10 and the valve body 20; the valve cover 40 is connected with the valve body 20 and covers the upper part of the upper channel 22; the valve rod 50 is inserted into the valve cap 40, and the valve rod 50 is connected to the ball 10 through the connecting groove 111.

According to the upper-mounted ball valve of the embodiment of the invention, by adopting the structure, when the upper-mounted ball valve is mounted, the plane 11 of the ball body 10 faces the vertical part 221 and is mounted in the valve cavity 21 through the upper channel 22, then the ball body 10 is rotated to the pore channel 13 to form a fluid channel with the inflow channel and the outflow channel, the distance between the two vertical parts 221 is smaller than the diameter of the ball body 10, the vertical part 221 of the upper channel 22 can limit the ball body 10, so that a pressure plate is not needed, and the number of parts is small; because the valve seat 30 is arranged in the valve cavity 21 in advance, the ball body 10 and the valve seat 30 are not required to be pressed into the valve cavity 21 together, the valve seat 30 is not easy to damage, the assembly is convenient and fast, the structure is compact, and the processing cost is lower.

It can be understood that the valve chamber 21 is provided with a valve seat 30 at one end close to the inflow passage and at the other end close to the outflow passage, and the valve seat 30 is provided with a circular hole matching with the duct 13, the inflow passage and the outflow passage.

It should be noted that, when the plane 11 of the ball 10 faces the vertical portion 221 and enters the valve cavity 21 through the upper channel 22, the ball 10 is shifted by a shifting member until the plane 11 is parallel to the central axis of the valve body 20, and the arc surface 12 contacts the valve seat 30, so that the orifice 13 can form a fluid passage with the inflow channel and the outflow channel. It will be appreciated that the toggle member is a lever or the like capable of toggling the rotation of the ball 10. In some embodiments, a through hole 1111 is formed in the connecting groove 111 for cooperating with the toggle member, so that the toggle member can toggle the ball 10 to rotate through the through hole 1111.

Referring to fig. 1 and 2, in the embodiment of the present invention, the valve cover 40 is detachably coupled to the valve body 20 by a fastening member such as a screw, thereby facilitating assembly.

Referring to fig. 1 and 2, in the embodiment of the present invention, a sealing gasket 60 is disposed at the joint of the valve cover 40 and the valve body 20 to further seal between the valve cover 40 and the valve body 20, so that the two are compactly installed.

In the embodiment of the present invention, the valve cover 40 is provided with the fixing seat 41 for the valve rod 50 to penetrate through, so that the valve rod 50 is further positioned, and the stability of the overall structure of the ball valve is improved. It should be noted that, in the embodiment of the present invention, a threaded rod is formed on the valve cover 40, and the fixing seat 41 is detachably mounted on the valve cover 40 by screwing the threaded rod and the nut.

Referring to fig. 1 and 2, in the embodiment of the present invention, an installation channel for the valve rod 50 to pass through is disposed on the valve cover 40, a packing 70 located in the installation channel is disposed between the valve cover 40 and the valve rod 50, a gland 42 located between the valve cover 40 and the fixing seat 41 is sleeved on the valve rod 50, one end of the gland 42 is inserted into the installation channel and abuts against the packing 70, and the other end of the gland 42 abuts against the fixing seat 41. Not only fix a position valve rod 50, guarantee that valve rod 50 normally drives spheroid 10 and rotate, and play the sealed effect to valve body 20, have certain intensity, prevent that inside fluid from flowing out.

Referring to fig. 1 and 2, in the embodiment of the present invention, a handle 80 is disposed on the valve stem 50 to be in linkage with the valve stem 50, so that the operation is convenient.

Referring to fig. 1 and 2, in the embodiment of the present invention, a positioning structure 90 for limiting the rotation angle of the handle 80 is provided between the valve cap 40 and the handle 80. Specifically, the positioning structure 90 includes a positioning column 92 and a positioning protrusion 91 matching with the positioning column 92, the positioning column 92 is disposed on the valve cover 40, and two positioning protrusions 91 are disposed on the handle 80. In the present embodiment, the positioning protrusion 91 is provided at an end of the handle 80 near the valve stem 50. When the handle 80 is rotated, the positioning protrusion 91 can abut against the positioning post 92, and the rotation angle of the handle 80 is limited from being too large.

In the embodiment of the present invention, the positioning protrusion 91 is formed with a first connection hole 911, the positioning post 92 is formed with a positioning plate 921, and the positioning plate 921 is formed with a second connection hole 9211 matching with the first connection hole 911. The relative positions of the handle 80 and the positioning column 92 are fixed by sequentially passing screws, pins or other rod members through the first connecting hole 911 and the second connecting hole 9211, so that the rotation of the ball 10 is avoided. In some embodiments, the positioning post 92 and the positioning plate 921 are detachably connected by screws, pins, etc. for easy replacement.

It should be noted that, in the embodiment of the present invention, the positioning protrusion 91 is integrally formed on the handle 80, and two first connection holes 911 and two second connection holes 9211 are provided; the positioning protrusion 91 and the positioning plate 921 are both in a "man" shape.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An upper-mounted ball valve, comprising:

the ball body (10) is provided with two planes (11) which are arranged oppositely and an arc surface (12) which is positioned between the two planes (11), one of the planes (11) is provided with a connecting groove (111), and the arc surface (12) is provided with a pore passage (13) which penetrates through the ball body (10);

the ball valve comprises a valve body (20), wherein the valve body (20) is provided with a valve cavity (21) and an inflow channel, an outflow channel and an upper channel (22) which are communicated with the valve cavity (21), the ball body (10) is installed in the valve cavity (21) through the upper channel (22), two vertical parts (221) which are oppositely arranged and matched with the plane (11) are arranged in the upper channel (22), and the distance between the two vertical parts (221) is smaller than the diameter of the ball body (10);

the valve cavity (21) is provided with two valve seats (30), the two valve seats (30) are symmetrically arranged on two sides in the valve cavity (21), and the valve seats (30) are positioned between the ball body (10) and the valve body (20);

the valve cover (40), the said valve cover (40) is connected with said valve block (20) and covered and located above the said upper channel (22);

the valve rod (50) penetrates through the valve cover (40), and the valve rod (50) is connected with the ball body (10) through the connecting groove (111).

2. The top-loading ball valve according to claim 1, wherein: the valve cover (40) is detachably connected with the valve body (20).

3. The top-loading ball valve according to claim 1, wherein: and a sealing gasket (60) is arranged at the matching position of the valve cover (40) and the valve body (20).

4. The top-loading ball valve according to claim 1, wherein: the valve cover (40) is provided with a fixed seat (41) for the valve rod (50) to penetrate through.

5. The top-loading ball valve according to claim 4, wherein: the improved valve is characterized in that a packing (70) is arranged between the valve cover (40) and the valve rod (50), a gland (42) located between the valve cover (40) and the fixing seat (41) is sleeved on the valve rod (50), one end of the gland (42) abuts against the packing (70), and the other end of the gland (42) abuts against the fixing seat (41).

6. The top-loading ball valve according to claim 1 or 4, wherein: and a handle (80) which is in linkage fit with the valve rod (50) is arranged on the valve rod (50).

7. The top-loading ball valve according to claim 6, wherein: and a positioning structure (90) used for limiting the rotation angle of the handle (80) is arranged between the valve cover (40) and the handle (80).

8. The top-loading ball valve according to claim 7, wherein: the positioning structure (90) comprises a positioning column (92) and positioning convex parts (91) matched with the positioning column (92), the positioning column (92) is arranged on the valve cover (40), and the two positioning convex parts (91) are arranged on the handle (80).

9. The top-loading ball valve according to claim 8, wherein: first connecting hole (911) has been seted up on location convex part (91), be provided with locating plate (921) on reference column (92), set up on locating plate (921) with first connecting hole (911) complex second connecting hole (9211).

10. The top-loading ball valve according to claim 9, wherein: the positioning column (92) is detachably connected with the positioning plate (921).