CN212899993U

CN212899993U - Ball valve with bell-mouth pin hole structure

Info

Publication number: CN212899993U
Application number: CN202021221775.9U
Authority: CN
Inventors: 卜步建; 刘远祥; 张玉龙
Original assignee: Gaiyide Wuxi Valve Co ltd
Current assignee: Gaiyide Wuxi Valve Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-04-06
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a ball valve with bell-mouth pinhole structure, including valve body and round pin axle, the round pin axle is installed inside the right-hand member of valve body, be provided with the safety pin hole on the right-hand member outer wall of valve body, the valve gap has been cup jointed to the right-hand member outside of round pin axle, be provided with the horn mouth on the left end outer wall of valve gap, the right-hand member of horn mouth is provided with the bolt hole, through designing the pinhole on traditional valve gap into the bell-mouth structure, and the outside one end aperture of horn mouth is great, and the inboard one end aperture of horn mouth keeps unanimous with the bolt hole, and the right-hand member inner wall of horn mouth and the bolt hole left end inner wall smooth connection form integral type groove structure, when installing the valve gap on the valve body, the right-hand member of round pin axle can lead into the bolt hole through the bell-mouth circular truncated cone type groove slot, thereby greatly reducing the assembly difficulty and improving the assembly efficiency.

Description

Ball valve with bell-mouth pin hole structure

Technical Field

The utility model belongs to the technical field of petrochemical ball valve is relevant, concretely relates to ball valve with horn mouth pinhole structure.

Background

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 external structure of the ball valve mainly comprises a valve body and a valve cover. The pin holes in the existing valve cover are only simple in chamfering and deburring, when the valve is assembled, the pin holes in the body cover or other parts cannot be seen, pins and the pin holes cannot be directly aligned frequently during blind assembly, difficulty is brought to assembly, and assembly efficiency is low.

The existing pin hole structure technology has the following problems: when the valve cover is installed in the valve body, the pin shaft and the pin hole cannot be directly observed, so that the pin shaft and the pin hole cannot be accurately centered when the valve cover is installed, the valve cover is difficult to install, the efficiency is low, and the assembly efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball valve with horn mouth pinhole structure to the valve gap that proposes in solving above-mentioned background art can't be with the problem of round pin axle and the accurate centering of pinhole when the installation.

In order to achieve the above object, the utility model provides a following technical scheme: the ball valve with the bell-mouth pin hole structure comprises a valve body and a pin shaft, wherein the pin shaft is installed inside the right end of the valve body, an installation pin hole is formed in the outer wall of the right end of the valve body, a valve cover is sleeved outside the right end of the pin shaft, a bell mouth is formed in the outer wall of the left end of the valve cover, and a bolt hole is formed in the right end of the bell mouth.

Preferably, the bell mouth is of a circular truncated cone groove structure, and the circumference diameter of the left end of the bell mouth is larger than that of the right end of the bell mouth.

Preferably, the bolt hole is of a cylindrical groove structure, and the inner wall of the left end of the bolt hole is smoothly connected with the inner wall of the right end of the horn mouth.

Preferably, the left end and the right end of the pin shaft are respectively inserted into the pin mounting holes and the pin inserting holes in the valve body and the valve cover.

Preferably, the valve body, the pin shaft and the circle center of the valve cover are transversely on the same straight line.

Preferably, the transverse length of the pin shaft is smaller than the sum of the transverse lengths of the pin mounting hole, the bell mouth and the pin inserting hole.

Compared with the prior art of pin hole structures, the utility model provides a ball valve with horn mouth pin hole structure possesses following beneficial effect:

1. the utility model designs the pin hole on the traditional valve cover into a bell mouth structure, the aperture of one end outside the bell mouth is larger, the aperture of one end inside the bell mouth is consistent with the bolt hole, and the diameter of the pin shaft is larger than the outer hole of the bell mouth, thereby enlarging the connecting range with the pin shaft, and simultaneously, because the bell mouth has the automatic centering function, the mounting difficulty between the valve cover and the valve body is reduced, and the mounting efficiency is improved;

2. the utility model discloses the right-hand member inner wall of horn mouth forms integral type groove structure with the smooth connection of bolt hole left end inner wall, when installing the valve gap on the valve body, the right-hand member of round pin axle can be through the automatic leading-in to the bolt hole of horn mouth round platform type recess cell wall to accomplish the installation of valve body and valve gap fast and fix, through the fault-tolerant rate between increase round pin axle and the bolt hole, thereby greatly reduced the assembly degree of difficulty, improved assembly efficiency.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a front cross-sectional structure of a bell-mouth pin hole provided by the present invention;

fig. 2 is a schematic view of a valve cover mounting and separating structure provided by the present invention;

fig. 3 is a left view structural schematic diagram of the valve cover provided by the present invention;

in the figure: 1. a valve body; 2. a pin shaft; 3. a valve cover; 4. a pin hole; 5. a bell mouth; 6. and (6) pin installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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.

Referring to fig. 1-3, the present invention provides a technical solution: the ball valve with the bell-mouth pin hole structure comprises a valve body 1 and a pin shaft 2, wherein the pin shaft 2 is arranged inside the right end of the valve body 1, an installation pin hole 6 is arranged on the outer wall of the right end of the valve body 1, a valve cover 3 is sleeved outside the right end of the pin shaft 2, the circle centers of the valve body 1, the pin shaft 2 and the valve cover 3 are transversely arranged on the same straight line, before the valve body 1 and the valve cover 3 are installed in a butt joint mode, by installing the pin shaft 2 into the installation pin hole 6 on the valve body 1, the accurate installation of the valve cover 3 is guided by the pin shaft 2, the pin shaft 2 is automatically guided into the bolt hole 4 on the valve cover 3 through the bell mouth 5 on the inner wall of the left end of the valve cover 3, the left end and the right end of the pin shaft 2 are respectively inserted into the pin installing hole 6 and the pin inserting hole 4 on the valve body 1 and the valve cover 3, after the valve body 1 and the valve cover 3 on the left side and the right side are aligned with each other through the pin shaft 2, the valve body 1 and the valve cover 3 are accurately installed and fixed, and therefore the installation efficiency of the valve body 1 and the valve cover 3 is improved.

Ball valve with horn mouth pinhole structure, be provided with horn mouth 5 on the left end outer wall including valve gap 3, horn mouth 5 is round platform type groove structure, the left end circumference diameter of horn mouth 5 is greater than right-hand member circumference diameter, through 5 structural design of horn mouth, the alignment scope in bolt hole 4 on the valve gap 3 has been enlarged, and make round pin axle 2 can slide into to bolt hole 4 along 5 round platform type groove slot walls of horn mouth, thereby the fault-tolerant rate has been increased, the assembly degree of difficulty has been reduced and assembly efficiency has been improved, the right-hand member of horn mouth 5 is provided with bolt hole 4, the horizontal length of round pin axle 2 is less than ann pinhole 6, the horizontal length sum in horn mouth 5 and bolt hole 4, install in ann pinhole 6 on valve body 1 and with valve gap 3 butt joint the back completely when round pin axle 2, valve gap 3 can attach on valve body 1 completely, thereby be convenient for the installation of valve gap 3.

Ball valve with horn mouth pinhole structure is cylindrical groove structure including bolt hole 4, and the left end inner wall in bolt hole 4 is connected with the right-hand member inner wall of horn mouth 5 smoothly for bolt hole 4 forms integral type groove structure with horn mouth 5, when installing valve gap 3 on valve body 1, the right-hand member of round pin axle 2 can be through 5 round platform type groove walls of horn mouth automatic leading-in to bolt hole 4, thereby accomplish valve body 1 fast and valve gap 3's installation fixed.

The utility model discloses a theory of operation and use flow: the utility model discloses install the back, through 5 structural design of horn mouth, the alignment scope in bolt hole 4 on the valve gap 3 has been enlarged, thereby the fault-tolerant rate when valve gap 3 when the installation has been increased, the assembly degree of difficulty of valve gap 3 has been reduced, the assembly efficiency is improved, valve body 1 and valve gap 3 are when the butt joint installation, through packing into round pin axle 2 to the safety pin hole 6 on the valve body 1, because round pin axle 2 and the equal unable direct observation of safety pin hole 6 on the valve gap 3, round pin axle 2 can be along 5 circular platform type recess cell walls automatic sliding to in bolt hole 4 of horn mouth this moment, realize round pin axle 2's automatic centering function, thereby accomplish valve body 1 fast and valve gap 3's installation fixed, make the installation of valve gap 3 more convenient, and is laborsaving.

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

1. Ball valve with horn mouth pinhole structure, including valve body (1) and round pin axle (2), its characterized in that: the valve is characterized in that the pin shaft (2) is installed inside the right end of the valve body (1), an installation pin hole (6) is formed in the outer wall of the right end of the valve body (1), the valve cover (3) is sleeved outside the right end of the pin shaft (2), a horn mouth (5) is formed in the outer wall of the left end of the valve cover (3), and a bolt hole (4) is formed in the right end of the horn mouth (5).

2. The ball valve with bell-mouth pin hole structure as claimed in claim 1, wherein: the horn mouth (5) is of a circular truncated cone groove structure, and the circumference diameter of the left end of the horn mouth (5) is larger than that of the right end of the horn mouth.

3. The ball valve with bell-mouth pin hole structure as claimed in claim 1, wherein: the bolt hole (4) is of a cylindrical groove structure, and the inner wall of the left end of the bolt hole (4) is smoothly connected with the inner wall of the right end of the horn mouth (5).

4. The ball valve with bell-mouth pin hole structure as claimed in claim 1, wherein: the left end and the right end of the pin shaft (2) are respectively inserted into the pin installing hole (6) and the bolt hole (4) on the valve body (1) and the valve cover (3).

5. The ball valve with bell-mouth pin hole structure as claimed in claim 1, wherein: the valve body (1), the pin shaft (2) and the circle center of the valve cover (3) are transversely on the same straight line.

6. The ball valve with bell-mouth pin hole structure as claimed in claim 1, wherein: the transverse length of the pin shaft (2) is smaller than the sum of the transverse lengths of the pin mounting hole (6), the bell mouth (5) and the pin inserting hole (4).