CN219606086U

CN219606086U - Ball valve with limiting function

Info

Publication number: CN219606086U
Application number: CN202320075749.7U
Authority: CN
Inventors: 张世军; 杨静刚; 李军; 陈凡; 张文胜
Original assignee: Specific Heat Engineering Wuhan Co ltd
Current assignee: Wuhan Fanzhou Precision Technology Co.,Ltd.
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-08-29
Anticipated expiration: 2033-01-09

Abstract

The utility model relates to a ball valve with a limiting function, which comprises a ball valve body, two valve caps and two middle flanges, wherein the two valve caps are coaxially and oppositely arranged at two ends of the ball valve body, through holes with two ends penetrating are oppositely formed in the two valve caps, and the two through holes are respectively communicated with the two ends of the ball valve body; the two middle flanges are coaxially sleeved on the two valve caps and connected through a connecting piece, and are used for tightly pressing the two valve caps at two ends of the ball valve body; and each valve cap, the middle flange and the ball valve body are axially positioned through a positioner. The positioning limiting structure has the beneficial effects that the positioning limiting structure is used for fixing the ball valve body, the valve cap and the middle flange in series, so that no relative movable space exists, the accurate switch limiting in the use process of the valve is ensured, meanwhile, the locking function of a middle bolt of the valve can be ensured by the valve without relative movement, and the stable sealing performance of the end face of the valve is ensured.

Description

Ball valve with limiting function

Technical Field

The utility model relates to the technical field of valves, in particular to a ball valve with a limiting function.

Background

Ball valves are used in pipelines mainly to cut off, distribute and change the flow direction of a medium, and can be tightly closed only by rotating the ball valve by 90 degrees and small rotating moment. At present, ball valve body, valve cap and well flange among the prior art exist relative activity space, influence the leakproofness of valve.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide

The technical scheme for solving the technical problems is as follows:

the ball valve with the limiting function comprises a ball valve body, two valve caps and two middle flanges, wherein the two valve caps are coaxially and oppositely arranged at two ends of the ball valve body, through holes with two ends penetrating are oppositely formed in the valve caps, and the two through holes are respectively communicated with the two ends of the ball valve body; the two middle flanges are coaxially sleeved on the two valve caps and connected through a connecting piece, and are used for tightly pressing the two valve caps on the two ends of the ball valve body; and each valve cap, the middle flange and the ball valve body are axially positioned through a positioner.

The beneficial effects of the utility model are as follows: the positioning and limiting structure (i.e. the positioner) is used for fixing the ball valve body, the valve cap and the middle flange in series, so that no relative movement space exists, accurate switch limiting in the use process of the valve is ensured, meanwhile, the locking function of a middle bolt of the valve can be ensured by the valve without relative movement, and the stable sealing performance of the end face of the valve is ensured.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, each locator includes a plurality of cylindric lock, and is a plurality of the cylindric lock is followed corresponding the even interval of circumference of valve cap is interlude in the ball valve body, corresponds the valve cap and corresponds in the flange, and its edge the axial extension of valve cap.

The valve has the beneficial effects that the valve body, the valve cap and the middle flange are axially positioned by utilizing the cylindrical pins, so that the valve body, the valve cap and the middle flange have no relative movable space, the accurate switch limit in the use process of the valve is ensured, the valve with no relative movement can ensure the locking function of the middle bolt of the valve, and the stable sealing performance of the end face of the valve is ensured.

Further, each locator comprises two cylindrical pins, and the two cylindrical pins are distributed oppositely.

The valve has the beneficial effects that the structure is simple, the number design of the cylindrical pins is reasonable, and the valve body, the valve cap and the middle flange are further guaranteed to have no relative movable space, so that the valve is guaranteed to be accurately opened and closed in the use process, and the sealing performance of the valve is guaranteed.

Further, the ball valve body comprises a valve body, a valve core and a handle, wherein a channel with two ends penetrating is arranged in the valve body, and the two through holes are respectively communicated with the two ends of the channel; the valve core is movably arranged in the channel and can be moved to connect or disconnect the two ends of the channel; the handle is horizontally arranged in a rotating mode, one end of the handle is fixedly connected with one end of the valve rod, and the other end of the valve rod penetrates through the valve body to extend into the channel and is connected with the valve core to drive the valve core to move.

The valve has the beneficial effects that when the valve is used, the handle can be manually rotated, and the handle drives the valve core to move in the valve body by utilizing the valve rod, so that the two ends of the valve body channel are communicated or disconnected, the valve can be quickly opened and closed, and the valve is easy and convenient to operate, and saves time and labor.

Further, two shaft position screws are oppositely arranged on the two middle flanges, and the two shaft position screws are respectively used for limiting the rotation of the handle.

The beneficial effect of adopting above-mentioned further scheme is simple structure, reasonable in design, and through two axle position screws to the forward rotation and the reversal of handle are fixed a position during the use, guarantee that the handle can forward rotate 90 and reverse 90, and the accuracy is high, labour saving and time saving.

Further, the valve rod is of a structure with one thin end and the other thick end, the thick end of the valve rod is clamped with the valve core, and the thin end of the valve rod is in threaded connection with two nuts; one end of the handle is sleeved on one end of the valve rod, and the handle is positioned between the two nuts and is clung to the two nuts.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design, handle easy dismounting, labour saving and time saving.

Further, an anti-loosening plate is sleeved at a position, between the nut and one end of the handle, of the valve rod, wherein the position is close to the valve body.

The beneficial effect of adopting above-mentioned further scheme is simple structure, reasonable in design, thereby can prevent through the anti-loosening plate that valve rod screw thread end and corresponding nut from taking place relative rotary displacement because the valve opens and shuts the motion and thereby lead to this nut to become flexible, further lead to tetrafluoro packing to press not tight and valve rod seal failure.

Further, the valve rod is positioned close to the valve body, a packing ring group and a spring group are coaxially sleeved at the position between the nut and the valve body, and the packing ring group is attached to the thick end of the valve rod.

The valve has the beneficial effects that the structure is simple, the design is reasonable, the tightness between the valve rod and the valve body can be effectively increased through the packing ring group and the spring group, and therefore the sealing performance of the whole valve is improved.

Further, a packing pressing sleeve is sleeved on the valve rod at a position corresponding to the space between the packing ring group and the spring group.

The beneficial effect of adopting above-mentioned further scheme is simple structure, reasonable in design, through packing press the cover further increase the stability of packing ring group to increase the sealing performance of whole valve.

Further, the packing set includes at least one packing, and the spring set includes at least one belleville spring.

The valve has the beneficial effects that the structure is simple, the design is reasonable, the tightness between the valve rod and the valve body can be effectively increased through the packing ring and the belleville spring, and therefore the sealing performance of the whole valve is improved.

Drawings

FIG. 1 is an assembly view of the present utility model;

FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 3 is a cross-sectional view taken along the direction B-B in FIG. 1;

FIG. 4 is an exploded view of the valve of the present utility model in a closed position;

fig. 5 is an exploded view of the valve in the opened state of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a valve cap; 2. a middle flange; 3. a cylindrical pin; 4. a valve body; 5. a valve core; 6. a handle; 7. a valve stem; 8. an axial screw; 9. a nut; 10. an anti-loosening plate; 11. packing pressing sleeve; 12. a packing ring; 13. a belleville spring; 14. a valve seat; 15. and (5) a long bolt.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

As shown in fig. 1 to 5, the present embodiment provides a ball valve with a limiting function, which comprises a ball valve body, two valve caps 1 and two middle flanges 2, wherein the two valve caps 1 are coaxially and oppositely arranged at two ends of the ball valve body, through holes penetrating through the two ends are oppositely arranged on the two valve caps 1, and the two through holes are respectively communicated with the two ends of the ball valve body; the two middle flanges 2 are coaxially sleeved on the two valve caps 1 and are connected through connecting pieces, and are used for tightly pressing the two valve caps 1 at two ends of the ball valve body; each bonnet 1, the middle flange 2 and the ball valve body are axially positioned by a positioner.

Preferably, in this embodiment, each of the valve caps 1 has a cylindrical structure with a thick end and a thin end, and the thick end is attached to the corresponding end of the ball valve body.

In addition, each bonnet 1 is provided with a circular hole penetrating through two ends.

Preferably, in this embodiment, each middle flange 2 has a rectangular plate structure, and a circular hole is arranged at the center of the middle flange, and the aperture of the circular hole is larger than the size of the thin end of the corresponding valve cap 1 and smaller than the size of the thick end of the valve cap 1, and the circular hole is pressed against the thick end of the corresponding valve cap 1.

Preferably, in this embodiment, the connecting piece includes four long bolts 15, the four long bolts 15 are respectively inserted into four corners of the two middle flanges 2, and the four corners of the two middle flanges 2 are respectively provided with through holes.

Preferably, in this embodiment, the two ends of the ball valve body are also oppositely provided with valve seats 14, and the two valve caps 1 respectively press the two valve seats 14 against the two ends of the ball valve body.

Moreover, the gap between the valve cap 1 and the valve body is 0.2-0.3 mm, the thick end of the valve cap 1 is tightly attached to the valve seat 14, and the pressing force provided by the bolts achieves the sealing effect of the middle channel.

In addition, the two valve seats 14 are preferably tetrafluoro valve seats, which effectively increase the tightness of both ends of the ball valve body, thereby increasing the tightness of the valve as a whole.

In this embodiment, location limit structure (i.e. locator) is used for establishing ties fixed ball valve body, valve cap 1 and well flange 2, makes it have not have relative activity space, guarantees that the valve in-process switch is spacing accurate, and the valve that does not have relative activity simultaneously can ensure the valve middle path bolt locking function, guarantees that valve terminal surface sealing performance is stable and does not reveal.

Example 2

On the basis of embodiment 1, in this embodiment, each locator includes a plurality of cylindric locks 3, and a plurality of cylindric locks 3 alternate in ball valve body, corresponding valve cap 1 and corresponding flange 2 along the circumference of corresponding valve cap 1 evenly with each other, and its axial extension along valve cap 1.

This scheme simple structure, reasonable in design utilizes a plurality of cylindric lock 3 to carry out axial positioning to valve body, valve cap 1 and well flange 2, makes it have not have relative activity space, guarantees that the valve in-process switch is spacing accurate, and the valve that does not have relative activity simultaneously can ensure the valve middle path bolt locking function, guarantees that valve terminal surface sealing performance is stable and does not reveal.

Example 3

In this embodiment, each locator includes two cylindrical pins 3, and the two cylindrical pins 3 are distributed relatively on the basis of embodiment 2.

The valve is simple in structure, the number of the cylindrical pins 3 is reasonable in design, the valve body, the valve cap 1 and the middle flange 2 are further guaranteed to be free of relative movable space, the limit accuracy of opening and closing in the use process of the valve is guaranteed, and the sealing performance of the valve is guaranteed.

Based on the scheme, two groups of positioning holes are oppositely formed in the valve body, each valve cap 1 and each middle flange 2, and two cylindrical pins 3 are respectively inserted into the two groups of positioning holes; each group of positioning holes comprises a valve body, a corresponding valve cap 1 and three positioning holes on a corresponding middle flange 2.

Example 4

Based on the above embodiments, in this embodiment, the ball valve body includes a valve body 4, a valve core 5 and a handle 6, a channel with two ends penetrating is provided in the valve body 4, and the two through holes are respectively communicated with two ends of the channel; the valve core 5 is movably arranged in the channel and can be moved to connect or disconnect the two ends of the channel; the handle 6 is horizontally arranged in a rotating way, one end of the handle is fixedly connected with one end of the valve rod 7, and the other end of the valve rod 7 penetrates through the valve body 4 to extend into the channel and is connected with the valve core 5 to drive the valve core 5 to move.

When the valve is used, the handle 6 can be manually rotated, and the handle 6 drives the valve core 5 to move in the valve body 4 by utilizing the valve rod 7, so that the two ends of the passage of the valve body 4 are communicated or disconnected, the valve is quickly opened and closed, and the valve is easy and convenient to operate, and is time-saving and labor-saving.

Preferably, in this embodiment, the handle 6 is preferably in a bent rod structure, which is reasonable in design and convenient for manual operation.

In addition, the other end of the handle 6 is sleeved with a protective sleeve, preferably a rubber sleeve, so that the comfort of the hand operation of a user is improved.

Preferably, in this embodiment, the valve body 4 is preferably a cylindrical structure with both ends open.

In addition, the valve core 5 is preferably in a spherical structure, and a circular channel penetrating through the valve core 5 is arranged on the valve core, wherein the circular channel can be coaxial with a channel in the valve body 4 during the movement of the valve core 5 so as to enable the valve to be opened, or the circular channel can be perpendicular to the channel in the valve body 4 during the movement of the valve core 5 so as to enable the valve to be closed.

Preferably, in this embodiment, the valve rod 7 is preferably a rod-like structure.

Example 5

In this embodiment, on the basis of embodiment 4, two shaft screws 8 are oppositely disposed on two middle flanges 2, and the two shaft screws 8 are respectively used for limiting the rotation of the handle 6.

This scheme simple structure, reasonable in design, it is fixed a position to the corotation and the reversal of handle 6 through two axle position screws 8 during the use, guarantees that handle 6 can corotation 90 and reversal 90, and the accuracy is high, labour saving and time saving.

Based on the above scheme, two shaft position screws 8 are respectively in threaded connection with two middle flanges 2.

Example 6

On the basis of any one of the embodiments 4 to 5, in this embodiment, the valve rod 7 has a structure with a thin end and a thick end, the thick end is clamped with the valve core 5, and the thin end is in threaded connection with two nuts 9, namely, a threaded section is arranged on the thin end of the valve rod 7; one end of the handle 6 is sleeved on one end of the valve rod 7, is positioned between the two nuts 9 and is tightly attached to the two nuts 9.

This scheme simple structure, reasonable in design, handle 6 easy dismounting, labour saving and time saving.

Example 7

In this embodiment, on the basis of embodiment 6, an anti-loosening plate 10 is further sleeved on a portion of one end of the valve rod 7 between the nut 9 adjacent to the valve body 4 and one end of the handle 6.

The novel valve is simple in structure and reasonable in design, the threaded end of the valve rod 7 and the corresponding nut 9 can be prevented from relative rotational displacement during opening and closing movement of the valve through the anti-loosening plate 10, so that the nut 9 is loosened, and tetrafluoro packing is further prevented from being compressed to be not tight, and the sealing of the valve rod 7 is invalid.

Preferably, in this embodiment, the anti-loosening plate 10 is preferably a partial plate-shaped structure, and a through hole is formed therein for the valve rod 7 to pass therethrough.

In addition, one end of the anti-loosening plate 10 is bent to form a bending plate, and the bending plate buckles the corresponding nut 9.

Example 8

In this embodiment, a packing ring group and a spring group are coaxially sleeved at a position of the valve rod 7 between the nut 9 near the valve body 4 and the valve body 4, and the packing ring group is attached to the thick end of the valve rod 7.

The scheme has simple structure and reasonable design, and can effectively increase the tightness between the valve rod 7 and the valve body 4 through the packing ring group and the spring group, thereby increasing the sealing performance of the whole valve.

In addition, the function of the packing ring group is: the valve rod 7 is pressed at the thick end of the valve rod 7, the valve rod 7 is isolated from the plane contact of the valve body, and friction torque is reduced while sealing effect is achieved; and secondly, the valve is pressed on the valve body to play a sealing role.

Example 9

In this embodiment, on the basis of embodiment 8, a packing pressing sleeve 11 is further sleeved on the valve rod 7 at a position corresponding to the space between the packing ring group and the spring group.

The scheme has simple structure and reasonable design, and the stability of the packing ring group is further improved through the packing pressing sleeve 11, so that the sealing performance of the whole valve is improved.

Example 10

In this embodiment, the packing set includes at least one packing 12 and the spring set includes at least one belleville spring 13 on the basis of any one of embodiments 8 to 9.

The scheme has simple structure and reasonable design, and can effectively increase the tightness between the valve rod 7 and the valve body 4 through the packing ring 12 and the belleville spring 13, thereby increasing the sealing performance of the whole valve.

Preferably, in this embodiment, the packing rings 12 are preferably plural, and the plurality of packing rings 12 are overlapped and sleeved on the valve rod 7.

In addition, the number of the packing rings 12 is preferably two.

Preferably, in this embodiment, the plurality of belleville springs 13 are preferably plural, and the plurality of belleville springs 13 are sleeved on the valve rod 7 in a stacked manner.

In addition, the number of the belleville springs 13 is preferably two.

The working principle of the utility model is as follows:

The utility model has the advantages that:

the ball valve body, the valve cap 1 and the middle flange 2 are connected in series by utilizing a positioning limiting structure (i.e. a positioner), so that no relative movement space exists, the accurate switch limiting in the use process of the valve is ensured, the locking function of a middle bolt of the valve can be ensured by the valve without relative movement, and the stable sealing performance of the end face of the valve is ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. Ball valve with limit function, its characterized in that: the ball valve comprises a ball valve body, two valve caps (1) and two middle flanges (2), wherein the two valve caps (1) are coaxially and oppositely arranged at two ends of the ball valve body, through holes with two ends penetrating are oppositely formed in the valve caps, and the two through holes are respectively communicated with the two ends of the ball valve body; the two middle flanges (2) are coaxially sleeved on the two valve caps (1) and are connected through connecting pieces, and the two valve caps (1) are tightly pressed at two ends of the ball valve body; each valve cap (1), the middle flange (2) and the ball valve body are axially positioned through a positioner.

2. The ball valve with limit function according to claim 1, wherein: every locator all includes a plurality of cylindric lock (3), and is a plurality of cylindric lock (3) are followed and correspond the circumference of valve cap (1) evenly spaced alternates in the ball valve body, correspond valve cap (1) and correspond in flange (2), and its edge in the axial extension of valve cap (1).

3. The ball valve with limit function according to claim 2, wherein: each locator comprises two cylindrical pins (3), and the two cylindrical pins (3) are distributed relatively.

4. A ball valve with a limit function according to any one of claims 1-3, characterized in that: the ball valve body comprises a valve body (4), a valve core (5) and a handle (6), wherein a channel with two ends penetrating is arranged in the valve body (4), and the two through holes are respectively communicated with the two ends of the channel; the valve core (5) is movably arranged in the channel and can be moved to connect or disconnect the two ends of the channel; the handle (6) horizontally rotates, one end of the handle is fixedly connected with one end of the valve rod (7), and the other end of the valve rod (7) penetrates through the valve body (4) to extend into the channel and is connected with the valve core (5) to drive the valve core (5) to move.

5. The ball valve with limit function according to claim 4, wherein: the two middle flanges (2) are oppositely provided with shaft position screws (8), and the two shaft position screws (8) are respectively used for limiting the rotation of the handle (6).

6. The ball valve with limit function according to claim 4, wherein: the valve rod (7) is of a structure with one thin end and the other thick end, the thick end of the valve rod is clamped with the valve core (5), and the thin end of the valve rod is in threaded connection with two nuts (9); one end of the handle (6) is sleeved on one end of the valve rod (7), is positioned between the two nuts (9) and is tightly attached to the two nuts (9).

7. The ball valve with limit function according to claim 6, wherein: one end of the valve rod (7) is positioned between the nut (9) close to the valve body (4) and one end of the handle (6), and an anti-loosening plate (10) is sleeved on the part.

8. The ball valve with limit function according to claim 6, wherein: the valve rod (7) is positioned close to a part between the nut (9) of the valve body (4) and is coaxially sleeved with a packing ring group and a spring group, and the packing ring group is attached to the thick end of the valve rod (7).

9. The ball valve with limit function according to claim 8, wherein: and a packing pressing sleeve (11) is sleeved on the valve rod (7) at a position corresponding to the space between the packing ring group and the spring group.

10. The ball valve with limit function according to claim 8, wherein: the packing set comprises at least one packing (12) and the spring set comprises at least one belleville spring (13).