CN212203216U

CN212203216U - Ball valve with detachable valve seat

Info

Publication number: CN212203216U
Application number: CN202021030172.0U
Authority: CN
Inventors: 张锦
Original assignee: Fangdun Instrument Valve Co ltd
Current assignee: Fangdun Instrument Valve Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-12-22
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a ball valve with a detachable valve seat; including valve pipe and ball valve body, two spring rooms have been seted up to the inside of the roof of valve pipe, one side lateral wall fixed mounting of spring room inner chamber has the return spring, two spouts have been seted up at the top of valve pipe, the equal slidable mounting in inside of two spouts has the slide, the equal fixed mounting of opposite face of slide has first shifting block, the equal fixed mounting of opposite face of slide has the disk seat, the circular ring groove has all been seted up to the inner wall of the inner chamber of valve pipe, the top fixed mounting of ball valve body has the valve rod, the equal fixed mounting in both sides of valve rod has the second shifting block. This disk seat can break away from formula ball valve, disk seat and ball valve body looks mutual friction when can avoiding the switch lead to the damage of ball valve body, and the life cycle of sealed width of cloth increases, makes ball valve body use can not appear after a period that the valve closes not tight and the seepage phenomenon to the life of extension ball valve reduces use cost, the moment of torsion of valve rod when reducing the switch ball valve, facilitates the use.

Description

Ball valve with detachable valve seat

Technical Field

The utility model belongs to the technical field of the ball valve, concretely relates to disk seat detachable ball valve.

Background

A ball valve is a valve in which an opening and closing member (ball) is driven by a valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. However, various ball valves are available in the market, which generally provide external torque to rotate a ball, thereby realizing the opening and closing of the ball valve. The opening and closing torque of the ball valve is generally determined according to the caliber of the ball valve and the medium pressure of the working environment. Especially for large-diameter high-pressure ball valves, a larger driving device is also needed to achieve the torque value required for opening and closing the ball valve, and the larger driving device is more expensive.

For example, the granted bulletin number CN204610926U discloses a low torque ball valve, which realizes the advantages of reducing the overall opening and closing torque of the valve, thereby reducing the sizes of the valve rod, the packing gland, the connecting disc, etc., and reducing the cost of the valve, but does not solve the problem of the existing ball valve that the valve seat and the ball body generate a large friction force when opening and closing, which can damage the valve seat and the ball body, the life cycle of the sealing flange is reduced, the valve is not closed tightly after being used for a period of time, and the leakage or even the failure occurs, resulting in an increase of the use cost. To this end we propose a ball valve with a detachable valve seat.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disk seat detachable ball valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: including valve pipe and ball valve body, two spring chambers have been seted up to the inside of the roof of valve pipe, one side lateral wall fixed mounting of spring chamber inner chamber has the return spring, two spouts, two have been seted up at the top of valve pipe the equal slidable mounting in inside of spout has the slide, the equal fixed mounting of opposite face of slide has first shifting block, the equal fixed mounting of opposite face of slide has the disk seat, the circular ring groove has been seted up to the inner wall of valve pipe, the top fixed mounting of ball valve body has the valve rod, the equal fixed mounting in both sides of valve rod has the second shifting block.

Preferably, both ends of the valve pipe are fixedly provided with installation circular plates, and a plurality of installation threaded holes are formed in the installation circular plates.

Preferably, the specification and the size of the sliding plate are matched with those of a sliding chute, and the sliding chute is communicated with the spring chamber.

Preferably, the top fixed mounting of valve rod has the handle mount pad, the top fixed mounting of handle mount pad has the handle, the top fixed mounting of handle has the fastening cap.

Preferably, the specification and size of the valve seat are matched with the specification and size of the circular groove, and the valve seat is slidably mounted inside the circular groove.

Preferably, the valve rod is located between the two sliding plates, the specification and the size of the first shifting block are matched with those of the second shifting block, and the position of the first shifting block corresponds to that of the second shifting block.

Preferably, the ball valve body is located between the two valve seats, the valve seats and the ball valve body are both provided with water through holes, and the water through holes in the valve seats are matched with the water through holes in the ball valve body in specification and size.

Preferably, one end of the return spring, which is far away from the side wall of the inner cavity of the spring chamber, is fixedly installed on one side, which is far away from the valve seat, of the sliding plate.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) when rotating the valve rod through the hand turning handle, the second shifting block of valve rod both sides can collide first shifting block, thereby promote first shifting block, first shifting block promotes the slide and removes inside the spout, thereby drive the disk seat and remove inside the ring groove, thereby make the disk seat break away from the ball valve body, the back force spring can promote the slide and remove after finishing rotating, thereby make disk seat contact ball valve body once more, fix ball valve body, disk seat and ball valve body looks mutual friction when can avoiding the switch lead to ball valve body's damage, the life cycle of sealing amplitude increases, valve closing untight and seepage phenomenon can not appear after making ball valve body use a period, thereby the life of extension ball valve.

(2) In addition, the friction force between the valve seat and the ball valve body is reduced, the torque of the valve rod during opening and closing of the ball valve can be reduced, the valve rod is prevented from being broken due to the fact that the valve rod rotates due to overlarge torque, and therefore the using cost is reduced, the service life of the ball valve is prolonged, and in addition, the torque of the valve rod during opening and closing of the ball valve is reduced, and the ball valve can be used conveniently.

Drawings

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

FIG. 2 is a front sectional view of the structure of the present invention;

fig. 3 is an enlarged schematic view of the structure a of the present invention.

In the figure: 1. a valve tube; 2. mounting a circular plate; 3. a handle; 4. a valve stem; 5. a chute; 6. a slide plate; 7. a first shifting block; 8. a second shifting block; 9. a fastening cap; 10. a handle mount; 11. a valve seat; 12. a ball valve body; 13. a circular groove; 14. a spring chamber; 15. a return spring; 16. and installing a threaded hole.

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 ball valve with a detachable valve seat, which comprises: including valve pipe 1 and ball valve body 12, two spring chambers 14 have been seted up to the inside of the roof of valve pipe 1, one side lateral wall fixed mounting of the 14 inner chambers of spring chamber has return spring 15, two spout 5 have been seted up at valve pipe 1's top, the equal slidable mounting in inside of two spout 5 has slide 6, the equal fixed mounting of opposite face of slide 6 has first shifting block 7, the equal fixed mounting of opposite face of slide 6 has disk seat 11, circular groove 13 has been seted up to valve pipe 1's inner wall, ball valve body 12's top fixed mounting has valve rod 4, the equal fixed mounting in both sides of valve rod 4 has second shifting block 8.

When driving rotating valve rod 4 through rotating handle 3, the second shifting block 8 of 4 both sides of valve rod can collide first shifting block 7, thereby promote first shifting block 7, first shifting block 7 promotes slide 6 at 5 inside movements of spout, thereby drive disk seat 11 at the inside removal of circular ring groove 13, thereby make disk seat 11 break away from ball valve body 12, after finishing rotating, return spring 15 can promote slide 6 and remove, thereby make disk seat 11 contact ball valve body 12 once more, fix ball valve body 12, disk seat 11 and the 12 mutual friction of ball valve body lead to the damage of ball valve body 12 when can avoiding the switch.

In this embodiment, it is preferable that the mounting disks 2 are fixedly mounted to both ends of the valve tube 1, and a plurality of mounting screw holes 16 are opened in the mounting disks 2.

The ball valve can be mounted by the mounting disks 2 at both ends of the valve tube 1 and fastened by fastening bolts through the mounting screw holes 16.

In this embodiment, it is preferable that the size of the slide 6 is adapted to the size of the slide groove 5, and the slide groove 5 is communicated with the spring chamber 14.

The slide 6 can slide inside the chute 5, thus changing the way the valve seat 11 is moved away from or close to the ball valve body 12.

In this embodiment, preferably, a handle mounting seat 10 is fixedly mounted on the top of the valve rod 4, a handle 3 is fixedly mounted on the top of the handle mounting seat 10, and a fastening cap 9 is fixedly mounted on the top of the handle 3.

The handle 3 can be mounted on top of the handle mounting seat 10 and fastened and fixed by the fastening cap 9.

In this embodiment, preferably, the specification of the valve seat 11 is matched with the specification of the annular groove 13, and the valve seat 11 is slidably installed inside the annular groove 13.

The valve seat 11 can slide in the circular groove 13, so that the ball valve body 12 is separated and fixed.

In this embodiment, preferably, the valve rod 4 is located between the two sliding plates 6, the specification size of the first shifting block 7 is matched with the specification size of the second shifting block 8, and the position of the first shifting block 7 corresponds to the position of the second shifting block 8.

When the valve rod 4 is rotated by the hand lever 3, the second blocks 8 on both sides of the valve rod 4 may collide with the first block 7, thereby pushing the first block 7.

In this embodiment, preferably, the ball valve body 12 is located between the two valve seats 11, the valve seats 11 and the ball valve body 12 are both provided with water through holes, and the water through holes in the valve seats 11 are matched with the water through holes in the ball valve body 12 in specification and size.

The relative positions of the water through hole in the valve seat 11 and the water through hole in the ball valve body 12 can be adjusted by rotating the ball valve body 12, so that the ball valve can be opened and closed.

In this embodiment, preferably, the end of the return spring 15 away from the side wall of the inner cavity of the spring chamber 14 is fixedly mounted on the side of the slide plate 6 away from the valve seat 11.

After the rotation is finished, the return spring 15 pushes the sliding plate 6 to move, so that the valve seat 11 contacts the ball valve body 12 again to fix the ball valve body 12.

The utility model discloses a theory of operation and use flow: this disk seat detachable ball valve is when driving rotation valve rod 4 through rotating handle 3, the second shifting block 8 of valve rod 4 both sides can collide first shifting block 7, thereby promote first shifting block 7, first shifting block 7 promotes slide 6 at 5 inside movements of spout, thereby drive disk seat 11 and move at ring groove 13 inside, thereby make disk seat 11 break away from ball valve body 12, return spring 15 can promote slide 6 and remove after finishing rotating, thereby make disk seat 11 contact ball valve body 12 once more, fix ball valve body 12, disk seat 11 and the 12 looks mutual friction of ball valve body 12 damage that leads to of switch time, thereby prolong the life of ball valve, reduce use cost, the moment of torsion of valve rod 4 when reducing the switch ball valve, facilitate the use.

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. A ball valve with a detachable valve seat comprises a valve pipe (1) and a ball valve body (12), and is characterized in that: two spring chambers (14) have been seted up to the inside of the roof of valve pipe (1), one side lateral wall fixed mounting of spring chamber (14) inner chamber has return spring (15), two spout (5), two have been seted up at the top of valve pipe (1) the equal slidable mounting in inside of spout (5) has slide (6), the equal fixed mounting in opposite face of slide (6) has first shifting block (7), the equal fixed mounting in opposite face of slide (6) has disk seat (11), circular groove (13) have been seted up to the inner wall of valve pipe (1), the top fixed mounting of ball valve body (12) has valve rod (4), the equal fixed mounting in both sides of valve rod (4) has second shifting block (8).

2. A ball valve of the type having a detachable valve seat as claimed in claim 1, wherein: the valve is characterized in that installation circular plates (2) are fixedly installed at two ends of the valve pipe (1), and a plurality of installation threaded holes (16) are formed in the installation circular plates (2).

3. A ball valve of the type having a detachable valve seat as claimed in claim 1, wherein: the specification and the size of the sliding plate (6) are matched with those of the sliding groove (5), and the sliding groove (5) is communicated with the spring chamber (14).

4. A ball valve of the type having a detachable valve seat as claimed in claim 1, wherein: the top fixed mounting of valve rod (4) has handle mount pad (10), the top fixed mounting of handle mount pad (10) has handle (3), the top fixed mounting of handle (3) has fastening cap (9).

5. A ball valve of the type having a detachable valve seat as claimed in claim 1, wherein: the specification and size of valve seat (11) and the specification and size looks adaptation of ring groove (13), valve seat (11) slidable mounting is in the inside of ring groove (13).

6. A ball valve of the type having a detachable valve seat as claimed in claim 1, wherein: the valve rod (4) is located between the two sliding plates (6), the specification size of the first shifting block (7) is matched with the specification size of the second shifting block (8), and the position of the first shifting block (7) corresponds to the position of the second shifting block (8).

7. A ball valve of the type having a detachable valve seat as claimed in claim 1, wherein: the ball valve body (12) is located between the two valve seats (11), the water through holes are formed in the valve seats (11) and the ball valve body (12), and the water through holes in the valve seats (11) are matched with the water through holes in the ball valve body (12) in specification and size.

8. A ball valve of the type having a detachable valve seat as claimed in claim 1, wherein: one end of the return spring (15) far away from the side wall of the inner cavity of the spring chamber (14) is fixedly arranged on one side of the sliding plate (6) far away from the valve seat (11).