CN213479202U

CN213479202U - Stop valve that water-resistant hammer effect is strong

Info

Publication number: CN213479202U
Application number: CN202022291925.XU
Authority: CN
Inventors: 麻晓荣; 金博
Original assignee: Dazhong Valve Group Energy Ltd By Share Ltd
Current assignee: Dazhong Valve Group Energy Ltd By Share Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-18
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a stop valve that water-resistant hammer is strong relates to valve technical field. This stop valve that water hammer resistant effect is strong, including the valve body, the surface top fixedly connected with valve gap of valve body. This stop valve that water-resistant hammer effect is strong, internal thread and pipeline through the valve body both ends communicate, then rotate the hand wheel with the hand, it rotates to drive the valve rod, the valve rod passes through the screw thread upward movement in the fixed block, drive sealed head upward movement, sealed head is not laminating with the valve clack, water begins to flow, rivers impact the fly leaf, fly leaf case left side pulling telescopic link and spring, the fly leaf is not laminating with the sealing washer, rivers can pass through, the opposite direction rotates the hand wheel, it rotates to drive the valve rod, the valve rod passes through the screw thread downward movement in the fixed block, drive sealed head downstream, sealed head and valve clack laminating, throttle to water, the spring pulls the pulling to the fly leaf through the telescopic link, the fly leaf is sealed with the laminating again of sealing washer.

Description

Stop valve that water-resistant hammer effect is strong

Technical Field

The utility model relates to the technical field of valves, specifically be a stop valve that water-resistant hammer is strong.

Background

The stop valve is also called as a stop valve, belonging to a forced sealing type valve, so that when the valve is closed, pressure must be applied to a valve clack to force a sealing surface not to leak, the force for closing the valve is larger than the force for opening the valve, so that the diameter of the valve rod is larger, otherwise, the failure of bending of the valve rod can occur, after the self-sealing valve appears, the medium flow direction of the stop valve is changed from the upper part of the valve clack to enter a valve cavity, at the moment, under the action of the medium pressure, the force for closing the valve is small, the force for opening the valve is large, the diameter of the valve rod can be correspondingly reduced, when the existing stop valve is used, the water impact, also called as a water hammer, is a phenomenon that a pipeline or a container bearing the flowing of the stop valve is subjected to sound and vibration due to the impact force generated by sudden steam or water, and the phenomenon that a working medium is generated under the condition that the pipeline is not smooth, however, the existing stop valve generally has no structure and effect of resisting the water hammer, and cannot play a role in buffering water impact under the condition of daily civil water low pressure, so that the stop valve is easy to damage in actual life use and easily wastes water resources.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stop valve that water-resistant hammer is effectual can have good water-resistant hammer effect when using, can have better sealed effect.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a stop valve with strong water hammer resistant effect comprises a valve body, a valve cover is fixedly connected with the top of the outer surface of the valve body, the valve cover is communicated with the valve body, the bottom of the inner wall of the valve cover is fixedly connected with a fixed block, the inner surface wall of the fixed block is carved with internal threads, the inner part of the fixed block is in threaded connection with a valve rod, the outer surface of the valve rod is sleeved with a pressing ring, the bottom end of the valve rod is fixedly connected with a sealing head, the inner wall of the valve cover is fixedly connected with a limiting block, the top of the valve cover is fixedly connected with a pressing cap, the utility model discloses a valve body, including valve body, the equal fixedly connected with mount of table wall in the both sides of valve body, two the equal fixedly connected with telescopic link of left side outer wall of mount, two the surface of telescopic link all overlaps and is equipped with the spring, two the equal fixedly connected with fly leaf of one end of mount is kept away from to the telescopic link, the solid fixed ring of the equal fixedly connected with of table wall in the both sides of valve body.

In order to strengthen the leakproofness of valve gap, as the utility model relates to a stop valve that water-resistant hammer effect is strong is preferred, the surface cover of valve rod is equipped with the filler, and the top of clamping ring and the top laminating of filler to the top of stopper and the bottom laminating of filler.

In order to strengthen the leakproofness of sealed head, as the utility model relates to a stop valve that water-resistant hammer effect is strong is preferred, the fixed surface of sealed head is connected with the ripple circle, and the surface of ripple circle and the interior surface laminating of valve clack.

For the convenience rotates the valve rod, as the utility model relates to a stop valve that water-resistant hammer effect is strong is preferred, the top of valve rod extends to the outside of valve gap, and the top fixedly connected with hand wheel of valve rod.

In order to protect spring and telescopic link, conduct the utility model relates to a stop valve that water-resistant hammer effect is strong is preferred, the surface cover of telescopic link is equipped with the protective sheath, the spring is located the inside of protective sheath.

In order to strengthen the leakproofness of fly leaf, as the utility model relates to a stop valve that water-resistant hammer effect is strong is preferred, gu fixed ring's left side outer wall fixedly connected with sealing washer, the laminating of the left side outer wall of sealing washer and the right side outer wall of fly leaf, the equal fixedly connected with gag lever post of table wall in the both sides of valve body.

The utility model provides a stop valve that water-resistant hammer is strong. The method has the following beneficial effects:

(1) the stop valve with strong water hammer resistance effect is communicated with a pipeline through the internal threads at the two ends of the valve body, then the hand wheel is rotated by hand to drive the valve rod to rotate, the valve rod moves upwards through the thread in the fixed block to drive the sealing head to move upwards, the sealing head is not jointed with the valve clack, water starts to flow, water flow impacts the movable plate, the telescopic rod and the spring are pulled at the left side of the movable plate box, the movable plate is not jointed with the sealing ring, the water flow can pass through, the hand wheel is rotated in the opposite direction to drive the valve rod to rotate, the valve rod moves downwards through the thread in the fixed block to drive the sealing head to move downwards, the sealing head is jointed with the valve clack, the water is throttled, the spring pulls the movable plate through the telescopic rod, the movable plate is attached to the sealing ring again to be sealed, the water hammer resisting effect of the stop valve can be enhanced, and the stop valve can be protected.

(2) This stop valve that water hammer resistance effect is strong can seal the valve gap through packing, and through sealed head and valve clack laminating, the leakproofness of sealed head can be strengthened in the laminating of the internal surface of ripple circle and valve clack, and the leakproofness of sealing washer and fly leaf mechanical energy laminating can strengthen the fly leaf, can reach the effect of reinforcing device leakproofness.

Drawings

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

FIG. 2 is a side view of the fixing frame of the present invention;

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

In the figure: 1. a valve body; 2. a valve cover; 3. a fixed block; 4. a limiting block; 5. a valve stem; 6. a filler; 7. pressing a ring; 8. pressing the cap; 9. a hand wheel; 10. a sealing head; 11. a corrugated ring; 12. a valve flap; 13. a limiting rod; 14. a fixed mount; 15. a telescopic rod; 16. a spring; 17. a movable plate; 18. a protective sleeve; 19. a fixing ring; 20. and (5) sealing rings.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a stop valve with strong water hammer resistance effect comprises a valve body 1, wherein the top of the outer surface of the valve body 1 is fixedly connected with a valve cover 2, the valve cover 2 is communicated with the valve body 1, the bottom of the inner wall of the valve cover 2 is fixedly connected with a fixed block 3, an inner surface wall of the fixed block 3 is engraved with an internal thread, the internal thread of the fixed block 3 is connected with a valve rod 5, the outer surface of the valve rod 5 is sleeved with a pressing ring 7, the bottom end of the valve rod 5 is fixedly connected with a sealing head 10, the inner wall of the valve cover 2 is fixedly connected with a limiting block 4, the top of the valve cover 2 is fixedly connected with a pressing cap 8, the inner surface wall of the valve body 1 is fixedly connected with a valve clack 12, the inner surface walls on two sides of the valve body 1 are fixedly connected with fixed frames 14, the outer walls on the left, the inner surface walls of the two sides of the valve body 1 are fixedly connected with fixing rings 19.

In this embodiment: the valve body 1 can fix the valve cover 2, the valve cover 2 can fix the fixing block 3, the fixing block 3 can fix the valve rod 5, the valve rod 5 can move up and down through rotation through threads, the valve rod 5 can fix the pressing ring 7, the pressing ring 7 can limit the valve rod 5, the sealing head 10 can seal the valve clack 12, the limiting block 4 can limit the valve rod 5 through the filler 6 and the pressing ring 7, the pressing cap 8 can fix the valve rod 5, the valve clack 12 can seal and separate two ends of the valve body 1 through the sealing head 10, the fixing frame 14 can fix the telescopic rod 15, the telescopic rod 15 can fix the spring 16, the spring 16 can support the telescopic rod 15, and the spring 16 is a widely used device, the spring coefficient can be selected according to actual needs, and the movable plate 17 can seal the valve body 1 by fitting with the fixed ring 19.

Specifically, the outer surface cover of valve rod 5 is equipped with filler 6, and the top of clamping ring 7 and the top laminating of filler 6 to the top of stopper 4 and the bottom laminating of filler 6.

In this embodiment: the filler 6 can seal the valve cover 2 and enhance the sealing performance of the valve cover 2.

Specifically, the outer surface of the sealing head 10 is fixedly connected with a corrugated ring 11, and the outer surface of the corrugated ring 11 is attached to the inner surface of the valve flap 12.

In this embodiment: the corrugated ring 11 can enhance the sealing performance of the sealing head 10, so that the stop effect of the stop valve is better.

Specifically, the top end of the valve rod 5 extends to the outside of the valve cap 2, and the top end of the valve rod 5 is fixedly connected with a hand wheel 9.

In this embodiment: the hand wheel 9 can conveniently rotate the valve rod 5 to control the stop valve.

Specifically, the outer surface of the telescopic rod 15 is sleeved with a protective sleeve 18, and the spring 16 is located inside the protective sleeve 18.

In this embodiment: the protective sleeve 18 can protect the telescopic rod 15 and the spring 16, and the service life of the telescopic rod 15 and the spring 16 is prolonged.

Specifically, the left outer wall of the fixing ring 19 is fixedly connected with a sealing ring 20, the left outer wall of the sealing ring 20 is attached to the right outer wall of the movable plate 17, and the inner surface walls of the two sides of the valve body 1 are fixedly connected with limit rods 13.

In this embodiment: the seal ring 20 can increase the tightness of the movable plate 17, the limiting rod 13 can limit along with the movable plate 17, and the telescopic rod 15 and the spring 16 are damaged due to overlarge water flow pressure.

When the sealing valve is used, a user can communicate with a pipeline through internal threads at two ends of the valve body 1, then the hand wheel 9 is rotated by hands to drive the valve rod 5 to rotate, the valve rod 5 moves upwards through threads in the fixed block 3 to drive the sealing head 10 to move upwards, the sealing head 10 is not attached to the valve clack 12, water starts to flow, water flow impacts the movable plate 17, the telescopic rod 15 and the spring 16 are pulled at the left side of the movable plate 17, the movable plate 17 is not attached to the sealing ring 20, water flow can pass through, the hand wheel 9 is rotated in the opposite direction to drive the valve rod 5 to rotate, the valve rod 5 moves downwards through the threads in the fixed block 3 to drive the sealing head 10 to move downwards, the sealing head 10 is attached to the valve clack 12 to throttle water, the spring 16 pulls the movable plate 17 through the telescopic rod 15, the movable plate 17 is attached to the sealing ring 20 again, the sealing head 10 is attached to the valve clack 12, the corrugated ring 11 is attached to the inner surface of the valve clack 12, the tightness of the sealing head 10 can be enhanced, and the sealing ring 20 is attached to the movable plate 17 through mechanical energy, so that the tightness of the movable plate 17 can be enhanced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a stop valve that water hammer resistance effect is strong, includes valve body (1), its characterized in that: the outer surface top fixedly connected with valve gap (2) of valve body (1), and valve gap (2) and valve body (1) intercommunication, the inner wall bottom fixedly connected with fixed block (3) of valve gap (2), and the interior table wall of fixed block (3) is carved and is equipped with the internal thread, the internal thread of fixed block (3) is connected with valve rod (5), the surface cover of valve rod (5) is equipped with clamping ring (7), the bottom fixedly connected with sealing head (10) of valve rod (5), the inner wall fixedly connected with stopper (4) of valve gap (2), the top fixedly connected with gland (8) of valve gap (2), the interior table wall fixedly connected with valve clack (12) of valve body (1), the equal fixedly connected with mount (14) of table wall in the both sides of valve body (1), two the equal fixedly connected with telescopic link (15) of left side outer wall of mount (14), two the surface of telescopic link (15) all overlaps and is equipped with spring (16), two the equal fixedly connected with fly leaf (17) of one end that mount (14) were kept away from in telescopic link (15), the solid fixed ring of the equal fixedly connected with of table wall (19) in the both sides of valve body (1).

2. The stop valve with strong water hammer resistance effect according to claim 1, characterized in that: the outer surface cover of valve rod (5) is equipped with filler (6), and the top of clamping ring (7) and the top laminating of filler (6) to the top of stopper (4) and the bottom laminating of filler (6).

3. The stop valve with strong water hammer resistance effect according to claim 1, characterized in that: the outer surface of the sealing head (10) is fixedly connected with a corrugated ring (11), and the outer surface of the corrugated ring (11) is attached to the inner surface of the valve clack (12).

4. The stop valve with strong water hammer resistance effect according to claim 1, characterized in that: the top end of the valve rod (5) extends to the outside of the valve cover (2), and the top end of the valve rod (5) is fixedly connected with a hand wheel (9).

5. The stop valve with strong water hammer resistance effect according to claim 1, characterized in that: the outer surface cover of telescopic link (15) is equipped with protective sheath (18), spring (16) are located the inside of protective sheath (18).

6. The stop valve with strong water hammer resistance effect according to claim 1, characterized in that: the left side outer wall fixedly connected with sealing washer (20) of solid fixed ring (19), the left side outer wall of sealing washer (20) and the right side outer wall laminating of fly leaf (17), equal fixedly connected with gag lever post (13) of table wall in the both sides of valve body (1).