CN211501663U

CN211501663U - Hydraulic cone valve with lifting type valve core structure

Info

Publication number: CN211501663U
Application number: CN201922465056.5U
Authority: CN
Inventors: 朱协清; 陶爱国
Original assignee: Wuhan Xiete Valve Technology Co ltd
Current assignee: Wuhan Xiete Valve Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-15
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a hydraulic cone valve with a lifting valve core structure, which comprises a valve body, a valve cover and a valve rod; the valve cover is provided with an upper cylindrical part and a lower cylindrical part and is respectively provided with an upper counter bore and a lower counter bore; the lower cylindrical part is sleeved in the valve body, a valve seat is coaxially and oppositely arranged in the valve body and opposite to the lower cylindrical part, a valve sleeve is arranged between the valve seat and the lower cylindrical part, and a valve core is arranged in the valve sleeve in a sliding manner; a spring hole is formed in one surface, facing the lower cylindrical portion, of the valve core, a spring is clamped in the spring hole, and the other end of the spring is clamped in the lower counter bore; one surface of the lower cylindrical part facing the valve core is also provided with a leakage detecting hole; a pressing plate is sleeved outside the upper cylindrical part and presses the lower cylindrical part and is connected to the valve body through a bolt; the hydraulic cone valve with the lifting valve core structure is reasonable in structural design, can be rapidly installed and detached, is convenient to maintain, and is good in sealing performance and long in service life.

Description

Hydraulic cone valve with lifting type valve core structure

Technical Field

The utility model relates to the cone valve technical field that surges, concretely relates to cone valve that surges of over-and-under type case structure.

Background

The hydraulic cone valve is generally divided into a manual cone valve and a pneumatic cone valve, and mainly controls high-pressure water to flow in a single direction so as to ensure the stable operation of a medium. The hydraulic cone valve is mainly used in a high-pressure pipeline and is arranged at an outlet of the pump or other pipelines requiring unidirectional flow; when in use, the valve is usually matched with a check valve.

The hydraulic cone valve is generally composed of a valve body, a gland nut, a valve cup, a valve core and a valve rod. For example, in 2011 of Chinese utility model patent (publication number: CN201916572U), a high-pressure water descaling pneumatic control hydraulic cone valve is disclosed, a valve cup is arranged in a valve body, an inner sheath is arranged at the lower part of the valve cup, an outer sheath is arranged at the outer side of the inner sheath, a soft sealing seat is arranged between the inner sheath and the outer sheath, and a conical surface is arranged on the soft sealing seat; a valve core is arranged in the valve cup, and the bottom of the valve core is conical; a sealing ring groove is arranged outside the middle part of the valve core, a sealing ring is arranged in the sealing ring groove, and a guide ring is arranged at the upper part of the sealing ring; a gland is arranged at the upper part of the valve core, and a spring is sleeved at the lower part of the gland; a valve stem is provided on the valve core, and a threaded bushing is provided on the exterior of the valve stem. The hydraulic cone valve can realize the opening and closing actions of the valve by using high-pressure water of a system as a power source, but has the following problems: (1) the gland is screwed in the valve cover, so that the assembly and disassembly are troublesome, and the problem of sealing between the gland and the valve cover needs to be considered; (2) leakage detection measures are not taken at the gland, and once the internal sealing has problems, water leakage cannot be found in time; (3) the conical structure of the valve core is single, which is not beneficial to the liquid flow.

Disclosure of Invention

The utility model aims at the problem that prior art exists, provide a cone valve that surges of over-and-under type case structure, can in time leak hunting to easily maintenance.

In order to achieve the above object, the utility model adopts the following technical scheme:

a hydraulic cone valve with a lifting valve core structure comprises a valve body, a valve cover and a valve rod; the valve cover is in a convex shape and is provided with an upper cylindrical part and a lower cylindrical part which are integrally formed, an upper counter bore is arranged in the upper cylindrical part, and a lower counter bore is arranged in the lower cylindrical part; the lower cylindrical part is sleeved in the valve body, a valve seat is coaxially and oppositely arranged in the valve body and opposite to the lower cylindrical part, a valve sleeve is arranged between the valve seat and the lower cylindrical part, and a valve core is arranged in the valve sleeve in a sliding manner; a spring hole is formed in one surface, facing the lower cylindrical portion, of the valve core, a spring is clamped in the spring hole, and the other end of the spring is clamped in the lower counter bore; one surface of the lower cylindrical part facing the valve core is also provided with a leakage detecting hole;

a pressing plate is sleeved outside the upper cylindrical part and presses the lower cylindrical part and is connected to the valve body through a bolt; a screw rod is arranged in the upper counter bore, and a valve rod is sleeved in the screw rod; the valve rod penetrates through the valve cover and extends into the spring hole.

The hydraulic cone valve of the lifting valve core structure has reasonable structural design, can be quickly installed and disassembled, and is convenient to maintain; the whole structure can be fixed through the bolts on the pressing plate, and the valve cover, the valve rod and the valve core can be integrally taken out to maintain the valve cover, the valve rod and the valve core after the bolts are loosened.

The valve cover with the structure can be connected with the screw above, can also fix the spring in the valve body, and can serve as a cover of the valve body to seal the valve body, so that the valve cover is multifunctional, the utilization efficiency of the valve cover is improved, and the arrangement of other parts is simplified. And the valve cover is taken down, so that the valve rod, the valve core and other parts can be taken out together, the whole process is simple and quick, the working procedures and time are saved, and the convenience of maintenance is improved.

Whether the valve body leaks or not can be detected in time through the arrangement of the leakage detection holes, whether the sealing between the valve core and the valve sleeve and between the valve sleeve and the valve body is problematic or not is detected, so that workers can be reminded of maintaining and replacing the sealing piece in time, liquid is prevented from entering the valve core and the spring to generate adverse effects, and the service life and the safety of the valve are reduced.

The high-pressure liquid entering from the liquid inlet on the valve body can overcome the spring force to push the valve core to move upwards according to the pressure of the liquid, or the valve core moves downwards under the action of the spring force, so that the valve core is opened and closed.

The screw and the valve rod are arranged, and the position of the valve core can be manually adjusted to control the flow of the liquid medium.

Furthermore, the spring hole is internally provided with a protrusion in the axial direction, and the protrusion and the inner peripheral wall of the spring hole are clamped with the end part of the spring together. The stability and the steadiness of connecting of spring tip have further been improved.

Further, the leakage detecting hole comprises an axial channel and a radial channel which are communicated, and the radial channel penetrates through the valve cover and the peripheral wall of the valve body and extends to the outside. Facilitating the outflow of the leaking liquid for finding problems in time.

Furthermore, a plurality of sealing rings and sliding sealing rings are arranged between the valve rod and the valve cover, and a plurality of sealing rings and sliding sealing rings are also arranged between the valve core and the inner wall of the valve sleeve. The sealing performance and the sliding performance are improved.

Furthermore, a plurality of sealing rings are respectively arranged between the valve cover and the valve body, between the valve sleeve and the valve body and between the valve seat and the valve body. The good sealing performance of the valve body is ensured.

Furthermore, the end part of the valve core is in a stepped cone shape. The contact area of the valve core and the liquid is increased, and the improvement of the pressure application area of the liquid and the uniform release of the liquid pressure are facilitated.

Furthermore, the lower end of the valve sleeve is provided with a plurality of through holes. For the flow and passage of liquid.

Further, the valve rod is a stepped rod, and the outer diameter from the upper end part to the valve body is gradually increased; the end part of the valve rod is provided with a gasket and a plurality of fastening nuts. The ladder rod is respectively matched with the nut, the screw rod and the valve cover and is connected in a layered mode.

Furthermore, a handle is arranged on the outer circumference of the screw rod. The upper and lower positions of the screw rod and the valve rod can be adjusted conveniently.

Furthermore, a step cover is sleeved outside the screw rod and the upper cylindrical part, and the lower end part of the step cover is clamped on the outer circumference of the upper cylindrical part. And internal threads are arranged on the inner circumferential surface of the step cover and/or the upper cylindrical part.

The ladder cover can also prevent that outside dust fall from the top seam crossing from getting into in the valve body, ensures clean free from admixture in the valve body, also plays certain guard action to screw rod and valve gap simultaneously, improves this life of awl valve that surges.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the hydraulic cone valve of the lifting valve core structure is reasonable in structural design, can be quickly installed and detached, is convenient to maintain, and is good in sealing performance and long in service life; 2. due to the arrangement of the valve cover, the screw rod above the valve body can be connected, the spring in the valve body can be fixed, and the valve cover serves as a cover of the valve body to seal the valve body, so that the valve cover is multifunctional, and the utilization efficiency of the valve cover is improved; the valve cover is taken down, so that the valve rod, the valve core and other parts can be taken out together, the working procedure and time are saved, and the convenience of maintenance is improved; 3. whether the valve body leaks can be detected out in time in the setting of leak hunting hole, whether sealed between case and valve barrel, valve barrel and the valve body has the problem to in time remind the staff to maintain and change the sealing member, avoid liquid to get into and produce adverse effect in case and the spring, with the high life who carries this cone valve.

Drawings

Fig. 1 is a schematic view of the overall structure of a hydraulic cone valve with a lifting valve core structure according to the present invention;

in the figure: 1. a valve body; 2. a valve cover; 201. an upper cylindrical portion; 202. a lower cylindrical portion; 3. a valve stem; 4. an upper counter bore; 5. a lower counter bore; 6. detecting a leak hole; 7. a valve seat; 8. a valve core; 9. a valve housing; 10. a spring hole; 11. a spring; 12. pressing a plate; 13. a bolt; 14. a screw; 15. a step cover; 16. fastening a nut; 17. a handle; 18. a seal ring; 19. a sliding seal ring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, a hydraulic cone valve with a lifting valve core structure comprises a valve body 1, a valve cover 2 and a valve rod 3; the valve cover 2 is in a convex shape and is provided with an upper cylindrical part 201 and a lower cylindrical part 202 which are integrally formed, an upper counter bore 4 is arranged in the upper cylindrical part 201, and a lower counter bore 5 is arranged in the lower cylindrical part 202; the lower cylindrical part 202 is sleeved in the valve body 1, a valve seat 7 is coaxially and oppositely arranged in the valve body 1 and opposite to the lower cylindrical part 202, a valve sleeve 9 is arranged between the valve seat 7 and the lower cylindrical part 202, and a valve core 8 is arranged in the valve sleeve 9 in a sliding manner; a spring hole 10 is formed in one surface, facing the lower cylindrical portion 202, of the valve core 8, a spring 11 is clamped in the spring hole 10, and the other end of the spring 11 is clamped in the lower counter bore 5; a leakage detection hole 6 is also formed in one surface, facing the valve core 8, of the lower cylindrical part 202;

a pressing plate 12 is sleeved outside the upper cylindrical part 201, and the pressing plate 12 presses the lower cylindrical part 202 and is connected to the valve body 1 through a bolt 13; a screw 14 is arranged in the upper counter bore 4, and a valve rod 3 is sleeved in the screw 14; the valve rod 3 penetrates through the valve cover 2 and extends into the spring hole 10.

The diameter of the lower cylindrical part 202 is larger than that of the upper cylindrical part 201, the inner diameter of the pressure plate 12 is matched with the outer diameter of the upper cylindrical part 201, and the outer diameter of the pressure plate 12 is basically the same as that of the upper end part of the valve body 1, so that a regular appearance is formed.

The hydraulic cone valve of the lifting valve core structure has reasonable structural design, can be quickly installed and disassembled, and is convenient to maintain; the entire structure can be fixed by the bolt 13 on the pressure plate 12, and the bonnet 2, the valve rod 3, and the valve element 8 can be taken out as a whole by loosening the bolt 13 for maintenance.

The valve cover 2 with the structure can be connected with the screw rod 14 above, can also fix the spring 11 in the valve body 1, and can also serve as a cover of the valve body 1 to seal the valve body 1, so that the valve cover 2 is multifunctional, the utilization efficiency of the valve cover 2 is improved, and the arrangement of other parts is simplified. And the valve cover 2 is taken down, so that the components such as the valve rod 3, the valve core 8 and the like can be taken out together, the whole process is simple and quick, the working procedures and time are saved, and the convenience of maintenance is improved.

Whether the valve body 1 leaks water or not can be detected in time through the arrangement of the leakage detecting hole 6, and whether the sealing between the valve core 8 and the valve sleeve 9 and between the valve sleeve 9 and the valve body 1 is problematic or not is detected, so that a worker can be reminded of maintaining and replacing the sealing element in time, the liquid is prevented from entering the valve core and the spring to generate adverse effects, and the service life and the safety of the sealing element are reduced.

The high-pressure liquid entering from the liquid inlet on the valve body 1 can overcome the spring force to push the valve core 8 to move upwards according to the pressure of the liquid, or the valve core 8 moves downwards under the action of the spring force, so that the valve core is opened and closed.

The screw 14 and the valve rod 3 are arranged, and the position of the valve core can be adjusted manually to control the flow of the liquid medium.

Furthermore, a protrusion is axially arranged in the spring hole 10, and the protrusion and the inner peripheral wall of the spring hole 10 are jointly clamped with the end of the spring 11. The stability and stability of the connection of the ends of the spring 11 are further improved.

Further, the leakage detecting hole 6 comprises an axial passage and a radial passage which are communicated with each other, and the radial passage radially penetrates through the peripheral walls of the valve cover 2 and the valve body 1 and extends to the outside. Facilitating the outflow of the leaking liquid for finding problems in time.

Further, a plurality of sealing rings 18 and sliding sealing rings 19 are arranged between the valve rod 3 and the valve cover 2, and a plurality of sealing rings 18 and sliding sealing rings 19 are also arranged between the valve core 8 and the inner wall of the valve sleeve 9. The sealing performance and the sliding performance are improved.

Further, a plurality of sealing rings 18 are respectively arranged between the valve cover 2 and the valve body 1, between the valve sleeve 9 and the valve body 1, and between the valve seat 7 and the valve body 1. The good sealing performance of the cone valve is ensured.

Further, the end of the valve core 8 is in a stepped conical shape. The contact area of the valve core 8 and the liquid is increased, and the improvement of the pressure application area of the liquid and the uniform release of the liquid pressure are facilitated.

Further, the lower end of the valve sleeve 9 is provided with a plurality of through holes. For the flow and passage of liquid.

Further, the valve rod 3 is a stepped rod, and the outer diameter from the upper end part to the valve body is gradually increased; the end part of the valve rod 3 is provided with a gasket and a plurality of fastening nuts 16. The ladder bar is respectively matched with the fastening nut 16, the screw 14 and the valve cover 2 and is connected in a layered mode.

Further, a handle 17 is provided on the outer circumference of the screw 14. The up-and-down position of the screw 14 and the valve rod 3 can be adjusted easily.

Further, a step cover 15 is further sleeved outside the screw 14 and the upper cylindrical portion 201, and a lower end portion of the step cover 15 is engaged with an outer circumference of the upper cylindrical portion 201. An internal thread is provided on the inner circumferential surface of the stepped cover 15.

Step cover 15 can also prevent that outside dust fall from the top seam crossing from getting into in the valve body 1, ensure clean free from admixture in the valve body 1, also play partly guard action to screw rod 14 and valve gap 2 simultaneously, improve this cone valve that surges's life.

It should be noted that the size and the type of the sealing ring 18 and the sliding sealing ring 19 in the present embodiment are different according to the installation position.

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 hydraulic cone valve with a lifting valve core structure comprises a valve body, a valve cover and a valve rod; the valve cover is characterized by being in a convex shape and provided with an upper cylindrical part and a lower cylindrical part which are integrally formed, an upper counter bore is arranged in the upper cylindrical part, and a lower counter bore is arranged in the lower cylindrical part; the lower cylindrical part is sleeved in the valve body, a valve seat is coaxially and oppositely arranged in the valve body and opposite to the lower cylindrical part, a valve sleeve is arranged between the valve seat and the lower cylindrical part, and a valve core is arranged in the valve sleeve in a sliding manner; a spring hole is formed in one surface, facing the lower cylindrical portion, of the valve core, a spring is clamped in the spring hole, and the other end of the spring is clamped in the lower counter bore; one surface of the lower cylindrical part facing the valve core is also provided with a leakage detecting hole;

2. The hydraulic cone valve with the lifting valve core structure as recited in claim 1, wherein a protrusion is axially disposed in the spring hole, and the protrusion and the inner peripheral wall of the spring hole jointly engage with an end of the spring.

3. The hydraulic cone valve with lifting valve core structure as claimed in claim 1, wherein the leakage detecting hole comprises an axial channel and a radial channel which are communicated with each other, and the radial channel extends to the outside through the peripheral walls of the valve cover and the valve body.

4. The hydraulic cone valve with lifting type valve core structure as claimed in claim 1, wherein a plurality of sealing rings and sliding sealing rings are arranged between the valve rod and the valve cover, and a plurality of sealing rings and sliding sealing rings are also arranged between the valve core and the inner wall of the valve sleeve.

5. The hydraulic cone valve with lifting type valve core structure as claimed in claim 1, wherein a plurality of sealing rings are respectively disposed between the valve cover and the valve body, between the valve sleeve and the valve body, and between the valve seat and the valve body.

6. The hydraulic cone valve with lifting valve core structure as claimed in claim 1, wherein the end of the valve core is in a stepped taper shape.

7. The hydraulic cone valve with lifting valve core structure as claimed in claim 1, wherein the lower end of the valve sleeve is provided with a plurality of through holes.

8. The hydraulic cone valve with lifting valve core structure as claimed in claim 1, wherein the valve rod is a stepped rod, and the outer diameter from the upper end part to the valve body is gradually increased; the end part of the valve rod is provided with a gasket and a plurality of fastening nuts.

9. The hydraulic cone valve with the lifting valve core structure as claimed in claim 1, wherein a handle is provided on an outer circumference of the screw.

10. The hydraulic cone valve with the lifting valve core structure as recited in claim 1, wherein a step cover is further sleeved outside the screw rod and the upper cylindrical portion, and a lower end portion of the step cover is engaged with an outer circumference of the upper cylindrical portion.