CN215568075U

CN215568075U - Compact ball valve

Info

Publication number: CN215568075U
Application number: CN202120940552.6U
Authority: CN
Inventors: 林进南; 魏贺华
Original assignee: Zhongqiu Valve Co ltd
Current assignee: Taihong Valve Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-01-18
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a compact ball valve, which adopts the technical scheme that the compact ball valve comprises a valve body, a valve seat, a ball body, a valve rod, a valve cover, a handle and a packing gland, wherein the handle comprises a connecting part and a handheld part, a positioning sheet is arranged on the connecting part, a hole is formed in the positioning sheet, the packing gland is provided with two limiting holes, two countersunk holes and two positioning holes, the two limiting holes and the two countersunk holes are both in threaded connection with inner hexagonal bolts, the height of the upper end surface of each nut of the inner hexagonal bolt in the countersunk hole is equal to or lower than that of the upper end surface of the packing gland, the positioning sheet is in contact with the nut of the inner hexagonal bolt in the limiting hole in a threaded connection manner to stop rotating relative to the packing gland and correspond to one positioning hole, and the handle is fixed relative to the packing gland by inserting the positioning pin or the bolt into the corresponding hole and positioning hole simultaneously, the problem of current ball valve handle rotational position inaccurate and easy pivoted is solved.

Description

Compact ball valve

Technical Field

The utility model relates to the field of ball valves, in particular to a compact ball valve.

Background

The ball valve can be applied to the industries of petroleum, natural gas, chemical industry, metallurgy, medicine, electric power and the like, and mainly comprises a valve body, a valve cover covered on the valve body, a ball body positioned in the valve body, a valve rod fixedly connected with the ball body and with one end penetrating through the valve cover, and a handle fixedly connected with one end of the valve rod penetrating through the valve cover, wherein the conventional ball valve has certain defects; secondly, the handle position is not fixed, and is easy to be influenced by the outside and rotate, thereby influencing the flow quantity of the ball body.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a compact ball valve which has a locking function and a handle which can rotate accurately.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a compact ball valve, includes the valve body, be located the disk seat in the valve body, with disk seat inconsistent spheroid, with spheroid fixed connection's valve rod, supply valve rod one end to pass and cover the valve gap on the valve body, wear out the one end fixed connection's of valve gap handle and be located the gland between valve gap and the handle with the valve rod, the handle is including the connecting portion and the handheld portion with valve rod fixed connection, be provided with the spacer that does not interfere with each other with handheld portion on the connecting portion, set up the hole to the hole on the spacer, set up two spacing holes of port and gland up end parallel and level, two and two spacing holes around the valve rod and the countersunk hole that sets up in turn and two are located same circumference and can with the locating hole that corresponds to the hole, two spacing hole and two equal threaded connection in the equal threaded connection of countersunk hole has hexagon socket head cap screw, threaded connection is in the countersunk hole the nut up end of hexagon nut up end place height equal or be less than gland's up end place height The height, connecting portion and gland laminate each other, and the nut of hexagon socket head cap screw in spacing downthehole through spacer and threaded connection is inconsistent makes the relative gland stop rotation of spacer and corresponds to one of them locating hole to the hole, and it is fixed to make the relative gland of handle in the hole and the locating hole that correspond each other to alternate simultaneously through locating pin or bolt.

As a further improvement of the utility model, the positioning piece and the hand-held part are positioned on the same straight line and are respectively positioned at two sides of the connecting part.

As a further improvement of the utility model, two positioning holes are distributed at 90 degrees around the valve rod.

As a further improvement of the utility model, the two counter bores and the two limiting holes are located on the same circumference and are uniformly distributed.

As a further improvement of the utility model, the cross section of the hand-held part perpendicular to the axis thereof is oval.

As a further improvement of the utility model, the handle further comprises an intermediate portion for interconnecting the connecting portion and the handle portion, wherein a cross section of the intermediate portion perpendicular to a length direction thereof is T-shaped, and a cross-sectional profile of the intermediate portion is smaller than a cross-sectional profile of the handle portion.

As a further improvement of the utility model, the peripheral wall of the valve rod is provided with a boss, and the valve cover is positioned in the valve body and limits the boss in the valve body.

The utility model has the beneficial effects that: the handle is provided with the positioning sheet, the positioning sheet is provided with the hole, the filling gland is provided with two counter bores, two limiting holes and two positioning holes corresponding to the hole, and the rotating angle of the handle is limited by the fact that the hexagon socket head cap bolt at the limiting hole is abutted against the positioning sheet; the bolt is simultaneously inserted into the hole and the positioning hole, so that the handle cannot be influenced by the outside to rotate randomly after rotating in place, and the locking function is realized, and the stability of the opening and closing state of the handle is indirectly improved; the counter sink design enables the connecting part to be arranged close to the packing gland, so that the packing gland has the advantages of compact integral structure, small volume, small required driving moment and easy opening and closing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of the present invention with the valve body and valve cover removed;

fig. 3 is a perspective view of a packing gland of the present invention.

Reference numerals: 1. a valve body; 2. a valve seat; 3. a sphere; 4. a valve stem; 5. a valve cover; 6. a handle; 7. a packing gland; 8. a connecting portion; 9. a hand-held portion; 10. positioning plates; 11. aligning holes; 12. a limiting hole; 13. a countersunk hole; 14. positioning holes; 15. a hexagon socket head cap screw; 16. an intermediate portion; 17. and (4) a boss.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.

Referring to fig. 1 to 3, the compact ball valve of the present embodiment includes a valve body 1, a valve seat 2 located in the valve body 1, a ball 3 abutting against the valve seat 2, a valve rod 4 fixedly connected to the ball 3, a valve cover 5 for allowing one end of the valve rod 4 to pass through and cover the valve body 1, a handle 6 fixedly connected to one end of the valve rod 4 penetrating through the valve cover 5, and a gland 7 located between the valve cover 5 and the handle 6, wherein the handle 6 includes a connecting portion 8 fixedly connected to the valve rod 4 and a handheld portion 9;

based on the prior art, a positioning sheet 10 is arranged on the connecting portion 8, the positioning sheet 10 and the handheld portion 9 are located on the same straight line and located on two sides of the connecting portion 8 respectively, a hole 11 is formed in the positioning sheet 10, two limiting holes 12 are formed in the packing gland 7, two countersunk holes 13 and two positioning holes 14 are formed in the packing gland 7, the two limiting holes 12 and the two countersunk holes 13 are uniformly distributed in a circumferential mode around the valve rod 4, the two limiting holes 12 and the two countersunk holes 13 are alternately arranged, the two positioning holes 14 are also distributed in a circumferential mode around the valve rod 4, the circumference of the circumference where the positioning holes 14 are located is larger than that of the circumference where the limiting holes 12 are located, the circumference of the hole 11 and the circumference of the positioning holes 14 are distributed vertically and are the same in circumference, the two positioning holes 14 are distributed 90 degrees around the valve rod 4, the two limiting holes 12 and the two countersunk holes 13 are both in threaded connection with the hexagon socket head bolts 15, and the upper end face of the hexagon socket head bolt 15 in the countersunk holes 13 is equal to or lower than that of the packing gland 7 At the height, the connecting part 8 and the packing gland 7 are mutually attached, the positioning hole 14 can be a through hole, and the hole 11 is a threaded hole;

in the initial state, the flow channel of the ball 3 and the flow channel of the valve body 1 are not communicated, the valve body is in a closed state, the hole 11 corresponds to one positioning hole 14 and is simultaneously penetrated by one bolt, in the process of opening the valve body, the bolt rotates relative to the hole 11, after the bolt exits from the positioning hole 14, the force is applied to the handheld part 9 to drive the connecting part 8 to rotate relative to the packing gland 7, the positioning sheet 10 rotates along with the connecting part 8, the positioning sheet 10 passes through the upper part of the countersunk hole 13 and is abutted to a nut of an inner hexagonal bolt 15 on one limiting hole 12, the handle 6 rotates 90 degrees, the handle 6 cannot rotate continuously, at the moment, the flow between the ball 3 and the valve body 1 is maximum, the hole 11 corresponds to the other positioning hole 14, the bottom end of the bolt extends into the corresponding positioning hole 14 by rotating the bolt, and the handle 6 is fixed relative to the packing gland 7; if the utility model is closed, the bolt is screwed out of the positioning hole 14, after the handle 6 is reversed by 90 degrees, the positioning sheet 10 is again abutted against the nut of the hexagon socket head cap screw 15 at the position of the limiting hole 12 in the initial state, the hole 11 corresponds to the positioning hole 14 in the initial state again, and finally the bolt is rotated to ensure that the hole 11 and the positioning hole 14 are inserted by the bolt at the same time, and then the initial state is recovered;

compared with the existing common ball valve, the common ball valve has the advantages that the handle 6 can accurately rotate due to the fact that the positioning piece 10 is abutted to the hexagon socket head cap screw 15 at the position of the limiting hole 12, and therefore opening and closing accuracy is high; the handle 6 can not be influenced by the outside and randomly rotate after rotating in place by simultaneously inserting the bolts into the hole 11 and the positioning hole 14 in a penetrating way, so that the locking mechanism has a locking function, and the stability of the opening and closing state of the locking mechanism is indirectly improved; the counter sink 13 is designed to enable the connecting part 8 to be arranged close to the packing gland 7, so that the packing gland has the advantages of compact integral structure, small volume, small required driving moment and easy opening and closing.

As a modified specific embodiment, referring to fig. 2, the cross section of the hand-held portion 9 perpendicular to the axis thereof is an ellipse, which can improve the comfort between the hand and the hand-held portion 9 compared to the design in which the hand-held portion 9 is designed as a prism.

As a modified specific embodiment, referring to fig. 1 and 2, the handle 6 further includes an intermediate portion 16 for connecting the connecting portion 8 and the handle portion 9 to each other, a cross section of the intermediate portion 16 perpendicular to a length direction thereof is T-shaped, and a cross-sectional profile of the intermediate portion 16 is smaller than a cross-sectional profile of the handle portion 9, so that the material consumption of the handle 6 can be reduced while ensuring the strength of the handle 6, and the production cost can be reduced.

As a specific embodiment of the improvement, referring to fig. 1, a boss 17 is provided on the circumferential wall of the valve rod 4, the valve cap 5 is located in the valve body 1, and the boss 17 is limited in the valve body 1, so that the valve cap 5 is limited in the valve body 1 on the premise of avoiding the situation that the valve rod flies out of the valve body 1 after the packing gland 7 is removed, and the volume of the present invention is further reduced.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides a compact ball valve, includes valve body (1), be located disk seat (2) in valve body (1), with disk seat (2) inconsistent spheroid (3), with spheroid (3) fixed connection's valve rod (4), supply valve rod (4) one end to pass and the lid fits valve gap (5) on valve body (1), wear out one end fixed connection's of valve gap (5) handle (6) and be located gland (7) between valve gap (5) and handle (6) with valve rod (4), handle (6) including with valve rod (4) fixed connection's connecting portion (8) and handheld portion (9), its characterized in that: be provided with spacer (10) with handheld portion (9) noninterference each other on connecting portion (8), seted up on spacer (10) to hole (11), set up two spacing holes (12) of last port and gland (7) up end parallel and level, two and two counter bores (13) that wind valve rod (4) and set up in turn and two locating hole (14) that are located same circumference and can correspond with hole (11) on gland (7), two spacing hole (12) and two counter bores (13) equal threaded connection has hexagon socket head cap screw (15), and threaded connection is equal to or is less than the up end position height of gland (7) in the nut up end position height of hexagon socket cap screw (15) in counter bore (13) in hexagon socket head cap screw (7) through spacer (10) and the nut counterbalance of threaded connection in hexagon socket head cap screw (15) in spacing hole (12) The positioning plate (10) stops rotating relative to the packing gland (7) and corresponds to one positioning hole (11) and one positioning hole (14) through contact, and the handle (6) is fixed relative to the packing gland (7) through the positioning pin or the bolt which is simultaneously inserted into the corresponding positioning hole (11) and the corresponding positioning hole (14).

2. A compact ball valve as defined in claim 1 wherein: the positioning piece (10) and the handheld part (9) are positioned on the same straight line and positioned on two sides of the connecting part (8) respectively.

3. A compact ball valve as defined in claim 1 wherein: the two positioning holes (14) are distributed around the valve rod (4) in an angle of 90 degrees.

4. A compact ball valve according to claim 1 or 2, characterized in that: the two counter bores (13) and the two limiting holes (12) are located on the same circumference and are evenly distributed.

5. A compact ball valve according to claim 1 or 2, characterized in that: the cross section of the handheld part (9) perpendicular to the axis thereof is elliptical.

6. A compact ball valve according to claim 5, wherein: the handle (6) further comprises an intermediate part (16) used for connecting the connecting part (8) and the handheld part (9) together, the section of the intermediate part (16) perpendicular to the length direction of the intermediate part is T-shaped, and the section contour of the intermediate part (16) is smaller than that of the handheld part (9).

7. A compact ball valve according to claim 1 or 2, characterized in that: the valve is characterized in that a boss (17) is arranged on the peripheral wall of the valve rod (4), and the valve cover (5) is positioned in the valve body (1) and limits the boss (17) in the valve body (1).