CN211474932U - Novel duplex ball valve - Google Patents

Abstract

The utility model relates to a novel duplex ball valve, which comprises a valve body, a flange transparent cover, an exhaust valve, a needle valve and a valve component; a detachable flange transparent cover is fixed at each of the left end and the right end of the valve body, a valve cavity is formed in each of the two ends of the valve body, a valve passage is formed between the two valve cavities, and a valve assembly is arranged in each of the two valve cavities; the utility model discloses a pair structure possesses two sets of valve components promptly, in case when ball core or the disk seat subassembly became invalid in one of them valve component, another valve component still is in normal condition, therefore still can thoroughly turn off the material and carry with good control material all the time, has eliminated the potential safety hazard.

Description

Novel duplex ball valve

Technical Field

The utility model relates to a novel pair ball valve.

Background

The ball valve is a common pipeline control component, a ball core in the ball valve is driven by a valve rod and rotates around the axis of the ball valve to achieve the opening and closing functions, the existing ball valve is only of a single-connection structure, namely only one set of valve assembly is provided, once the ball core or the valve seat assembly in the valve assembly fails, materials cannot be completely shut off, the materials are out of control in conveying, potential safety hazards exist, and further improvement is to be achieved.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a novel pair ball valve that adopts the pair structure to carry with good control material all the time has eliminated the potential safety hazard is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a novel duplex ball valve comprises a valve body, a flange transparent cover, an exhaust valve, a needle valve and a valve component; the needle valve is characterized in that a valve cavity is formed inside each of the two ends of the valve body, a valve passage is formed between the two valve cavities, a vertically distributed passage is formed in the bottom of the middle of the valve body, the inner end of the passage is communicated with the inner wall of the lower side of the valve passage, and the needle valve is arranged at the outer end of the passage; the two ends of the front side of the valve body are respectively provided with an air passage which is distributed obliquely and upwards, the inner ends of the two air passages are respectively communicated with the inner walls of the two valve cavities, the outer ends of the two air passages are respectively provided with an exhaust valve, the two valve cavities are respectively provided with a valve assembly, the valve assembly comprises a ball core, a bottom cover, a valve seat assembly, a driving assembly and a transmission assembly, the ball core is arranged in the valve cavities, the left side and the right side of the ball core are respectively provided with the valve seat assembly which are distributed symmetrically, the bottom cover is detachably embedded at the bottom of the valve body, the upper end of the bottom cover is rotatably inserted into the lower side of the ball core, the transmission assembly is embedded at the top of the valve body and is connected with the upper side of the ball core; the ball core is internally provided with material passing holes which are transversely distributed.

Preferably, transmission assembly includes cover barrel seat, saddle, valve rod, first sliding sleeve, second sliding sleeve and first sealing washer, cover barrel seat inlays and establishes the top at the valve body, the upper end at cover barrel seat is fixed to the saddle, cover barrel seat's inside is from up inlaying in proper order down and is equipped with first sliding sleeve, second sliding sleeve and two first sealing washers, the vertical and rotatable interlude of valve rod sets up in the second sliding sleeve, the lower extreme of valve rod is fixed on the core.

Preferably, the driving assembly comprises a box body, a box cover, a worm wheel, a hand wheel and an end cover; the box body is fixed on the upper side of the saddle, the box cover is detachably arranged at an opening at the upper end of the box body, and the turbine is arranged inside the box body; the utility model discloses a worm gear box, including box body, casing, the outside of casing, the both ends of casing all are provided with a detachable end cover, two be provided with rotatable worm between the end cover, the worm meshes in one side of turbine, the hand wheel cover is established and is fixed in the one end of worm and locate the outside of an end cover of front side.

Preferably, the upper end of the valve rod passes upwards through the two first sealing rings and the support table and is inserted and fixed in the center of the turbine.

Preferably, a convex column is formed outwards on the upper side of the ball core, the convex column is upwards rotatably inserted into the first sliding sleeve in an inserting mode, a groove is formed in the upper side of the convex column, a cutting is formed outwards on the lower end of the valve rod, and the cutting is inserted into the groove.

Preferably, the inner side inner walls of the two valve cavities are provided with a first sinking cavity, correspondingly, the inner ends of the two flange transparent covers are provided with a second sinking cavity, and the two valve seat assemblies are respectively arranged in the first sinking cavity and the second sinking cavity.

Preferably, the center of the bottom surface of the first sinking cavity is provided with eight first counter bores which are distributed at equal angles along the circumferential direction, and the center of the bottom surface of the second sinking cavity is provided with eight second counter bores which are distributed at equal angles along the circumferential direction.

Preferably, the valve seat assembly comprises a seat sleeve, a sealing washer, second sealing rings and springs, the sealing washer is embedded inside one end of the seat sleeve, the two second sealing rings are embedded in the outer side of the seat sleeve, and the eight springs which are distributed along the circumferential direction at equal angles are arranged on the outer side of the other end of the seat sleeve.

Preferably, the inner sides of the sealing gaskets in the two valve seat assemblies are respectively attached to the left side and the right side of the ball core, the seat sleeves in the two valve seat assemblies are respectively embedded in the first sinking cavity and the second sinking cavity and are matched with the valve passages, and the positions of the material passing holes are matched with the positions of the seat sleeves in the two valve seat assemblies.

Preferably, eight springs provided in one valve seat assembly in the first counter bore are provided in eight first counter bores, respectively; the eight springs disposed in one valve seat assembly in the second counterbore are disposed in eight second counterbores, respectively.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a pair structure possesses two sets of valve components promptly, in case when ball core or the disk seat subassembly became invalid in one of them valve component, another valve component still is in normal condition, therefore still can thoroughly turn off the material and carry with good control material all the time, has eliminated the potential safety hazard.

Drawings

FIG. 1 is a left front side structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a connection structure diagram of the ball core and the valve rod of the present invention.

Detailed Description

As shown in fig. 1 to 3, a novel duplex ball valve comprises a valve body 1, a flange transparent cover 2, an exhaust valve 3, a needle valve 5 and a valve component; the left end and the right end of the valve body 1 are both fixed with a detachable flange transparent cover 2, a valve cavity 102 is formed inside each of the two ends of the valve body 1, a valve passage 101 is formed between the two valve cavities 102, a vertically distributed passage 103 is formed at the bottom of the middle of the valve body 1, the inner end of the passage 103 is communicated with the inner wall of the lower side of the valve passage 101, and the needle valve 5 is arranged at the outer end of the passage 103; the two ends of the front side of the valve body 1 are respectively provided with an air passage 104 which is distributed obliquely and upwards, the inner ends of the two air passages 104 are respectively communicated with the inner walls of the two valve cavities 102, the outer ends of the two air passages 104 are respectively provided with an exhaust valve 3, the two valve cavities 102 are respectively provided with a valve assembly, the valve assembly comprises a ball core 6, a bottom cover 4, a valve seat assembly, a driving assembly and a transmission assembly, the ball core 6 is arranged in the valve cavities 102, the left side and the right side of the ball core 6 are respectively provided with the valve seat assembly which are symmetrically distributed, the bottom cover 4 is detachably embedded at the bottom of the valve body 1, the upper end of the bottom cover 4 is rotatably inserted into the lower side of the ball core 6, the transmission assembly is embedded at the top of the valve body 1; the transmission assembly comprises a sleeve seat 13, a saddle 12, a valve rod 11, a first sliding sleeve 14, a second sliding sleeve 15 and a first sealing ring 22, the sleeve seat 13 is embedded at the top of the valve body 1, the saddle 12 is fixed at the upper end of the sleeve seat 13, the first sliding sleeve 14, the second sliding sleeve 15 and the two first sealing rings 22 are sequentially embedded in the sleeve seat 13 from bottom to top, the valve rod 11 is vertically and rotatably inserted in the second sliding sleeve 15, and the lower end of the valve rod 11 is fixed on the ball core 6; the driving component comprises a box body 17, a box cover 18, a worm 19, a turbine 16, a hand wheel 21 and an end cover 20; the box body 17 is fixed on the upper side of the saddle 12, the box cover 18 is detachably arranged at an opening at the upper end of the box body 17, and the turbine 16 is arranged inside the box body 17; the upper end of the valve stem 11 upwards passes through the two first sealing rings 22 and the saddle 12 and is inserted and fixed in the center of the turbine 16, one side of the box body 17 outwards forms a cylinder 171, both ends of the cylinder 171 are respectively provided with a detachable end cover 20, a rotatable worm 19 is arranged between the two end covers 20, the worm 19 is meshed with one side of the turbine 16, a hand wheel 21 is sleeved and fixed at one end of the worm 19 and arranged on the outer side of one end cover 20 on the front side, the upper side of the ball core 6 outwards forms a convex column 61, the convex column 61 upwards rotatably inserts and connects into the first sliding sleeve 14, the upper side of the convex column 61 is provided with a groove 62, the lower end of the valve stem 11 outwards forms an insert 111, and the insert 111 is inserted into the groove 62; the inner side inner walls of the two valve cavities 102 are respectively provided with a first counter bore 105, correspondingly, the inner ends of the two flange transparent covers 2 are respectively provided with a second counter bore 201, the two valve seat assemblies are respectively arranged in the first counter bore 105 and the second counter bore 201, the center of the bottom surface of the first counter bore 105 is provided with eight first counter bores 106 which are distributed at equal angles along the circumferential direction, and the center of the bottom surface of the second counter bore 201 is provided with eight second counter bores 202 which are distributed at equal angles along the circumferential direction; the valve seat assembly comprises a seat sleeve 7, two sealing rings 8, second sealing rings 9 and springs 10, wherein the sealing rings 8 are embedded in one end of the seat sleeve 7, the outer side of the seat sleeve 7 is embedded with the two second sealing rings 9, the outer side of the other end of the seat sleeve 7 is provided with eight springs 10 which are distributed at equal angles along the circumferential direction, the inner sides of the sealing rings 8 in the two valve seat assemblies are respectively attached to the left side and the right side of the ball core 6, the seat sleeves 7 in the two valve seat assemblies are respectively embedded in the first sinking cavity 105 and the second sinking cavity 201 and are mutually matched with the valve channel 101, and the eight springs 10 in one valve seat assembly in the first sinking cavity 105 are respectively arranged in the eight first sinking holes 106; eight springs 10 arranged in one valve seat assembly in the second counter bore 201 are respectively arranged in eight second counter bores 202, the ball core 6 is internally provided with material passing holes 61 which are transversely distributed, and the positions of the material passing holes 61 are matched with the positions of the seat sleeves 7 in the two valve seat assemblies.

When in use: connecting a feeding pipe and a discharging pipe to the left and right flange transparent covers 2 respectively, holding a hand wheel 21 in one of the driving assemblies and rotating to further drive a worm 19 to rotate, thereby driving a turbine 16 to rotate according to the connection principle of the turbine and the worm, further driving a valve rod 11 to rotate in the second sliding sleeve 15, further driving the ball core 6 to rotate, further enabling two ends of a material passing hole 61 to be aligned with inner holes of the two seat sleeves 7 respectively, and similarly, holding the hand wheel 21 in the other driving assembly and rotating to further enable the material passing hole 61 in the other ball core 6 to be communicated with the two seat sleeves 7; at the moment, the material enters a flange transparent cover 2 and a seat sleeve 7 on the left side through a feeding pipe, then enters a valve channel 101 through a material passing hole 61 in a ball core 6 in a valve component on the left side, then passes through a valve component on the right side according to the same principle, finally enters a discharging pipe through a flange transparent cover 2 on the right side, and after feeding is finished, a hand wheel 21 in the two valve components is reversed to cut off the material; if other materials need to be added into the materials, the material conveying pipe can be connected to the needle valve 5, and then other materials enter the valve channel 101 through the channel 103 so as to be mixed with the materials; the air in the valve cavity 102 can be exhausted by opening the exhaust valve 3; the outer end of the sleeve 7 pushes the sealing washer 8 towards the core 6 by means of the resilience of the eight springs 10, so that the inner end of the sealing washer 8 presses against the side of the core 6, thereby performing a sealing function.

The ball valve is a common pipeline control component, a ball core in the ball valve is driven by a valve rod and rotates around the axis of the ball valve to achieve the opening and closing functions, the existing ball valve is only of a single-connection structure, namely, only one set of valve component is provided, once the ball core or the valve seat component in the valve component fails, materials cannot be completely shut off, the materials are out of control in conveying, and potential safety hazards exist; the utility model discloses a pair structure possesses two sets of valve components promptly, in case when ball core or the disk seat subassembly became invalid in one of them valve component, another valve component still is in normal condition, therefore still can thoroughly turn off the material and carry with good control material all the time, has eliminated the potential safety hazard.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A novel duplex ball valve comprises a valve body, a flange transparent cover, an exhaust valve, a needle valve and a valve component; the needle valve is characterized in that a valve cavity is formed inside each of the two ends of the valve body, a valve passage is formed between the two valve cavities, a vertically distributed passage is formed in the bottom of the middle of the valve body, the inner end of the passage is communicated with the inner wall of the lower side of the valve passage, and the needle valve is arranged at the outer end of the passage; the two ends of the front side of the valve body are respectively provided with an air passage which is distributed obliquely and upwards, the inner ends of the two air passages are respectively communicated with the inner walls of the two valve cavities, the outer ends of the two air passages are respectively provided with an exhaust valve, the two valve cavities are respectively provided with a valve assembly, the valve assembly comprises a ball core, a bottom cover, a valve seat assembly, a driving assembly and a transmission assembly, the ball core is arranged in the valve cavities, the left side and the right side of the ball core are respectively provided with the valve seat assembly which are distributed symmetrically, the bottom cover is detachably embedded at the bottom of the valve body, the upper end of the bottom cover is rotatably inserted into the lower side of the ball core, the transmission assembly is embedded at the top of the valve body and is connected with the upper side of the ball core; the ball core is internally provided with material passing holes which are transversely distributed.

2. The novel duplex ball valve as claimed in claim 1, wherein the transmission assembly comprises a sleeve seat, a tray, a valve rod, a first sliding sleeve, a second sliding sleeve and a first sealing ring, the sleeve seat is embedded in the top of the valve body, the tray is fixed at the upper end of the sleeve seat, the first sliding sleeve, the second sliding sleeve and the two first sealing rings are sequentially embedded in the sleeve seat from bottom to top, the valve rod is vertically and rotatably inserted in the second sliding sleeve, and the lower end of the valve rod is fixed on the ball core.

3. The novel duplex ball valve as recited in claim 2, wherein the drive assembly comprises a box body, a box cover, a worm, a turbine, a hand wheel and an end cover; the box body is fixed on the upper side of the saddle, the box cover is detachably arranged at an opening at the upper end of the box body, and the turbine is arranged inside the box body; the utility model discloses a worm gear box, including box body, casing, the outside of casing, the both ends of casing all are provided with a detachable end cover, two be provided with rotatable worm between the end cover, the worm meshes in one side of turbine, the hand wheel cover is established and is fixed in the one end of worm and locate the outside of an end cover of front side.

4. The novel double-link ball valve as claimed in claim 3, wherein the upper end of the valve rod passes upwards through the two first sealing rings and the saddle and is inserted and fixed in the center of the turbine.

5. The novel duplex ball valve as recited in claim 2, wherein the upper side of the ball core is outwardly formed with a convex pillar, the convex pillar is upwardly and rotatably inserted and connected in the first sliding sleeve, the upper side of the convex pillar is formed with a groove, the lower end of the valve rod is outwardly formed with a cutting, and the cutting is inserted into the groove.

6. The novel duplex ball valve as claimed in claim 1, wherein a first sinking chamber is formed on the inner wall of each of the two valve chambers, a second sinking chamber is formed on the inner end of each of the two flange transparent covers, and the two valve seat assemblies are respectively disposed in the first sinking chamber and the second sinking chamber.

7. The novel duplex ball valve as recited in claim 6, wherein eight first counter bores are formed in the center of the bottom surface of the first counter bore and distributed at equal angles along the circumferential direction, and eight second counter bores are formed in the center of the bottom surface of the second counter bore and distributed at equal angles along the circumferential direction.

8. The novel duplex ball valve as recited in claim 1, wherein the valve seat assembly comprises a seat sleeve, a sealing gasket, two second sealing rings and springs, the sealing gasket is embedded in one end of the seat sleeve, the two second sealing rings are embedded in the outer side of the seat sleeve, and the eight springs are arranged on the outer side of the other end of the seat sleeve and distributed at equal angles along the circumferential direction.

9. The novel duplex ball valve as recited in claim 8, wherein the inner sides of the sealing washers in the two valve seat assemblies are respectively attached to the left and right sides of the ball core, the seat sleeves in the two valve seat assemblies are respectively embedded in the first and second sinking cavities and are mutually matched with the valve passages, and the positions of the material passing holes are mutually matched with the positions of the seat sleeves in the two valve seat assemblies.

10. The novel double ball valve as claimed in claim 8, wherein eight of said springs in a seat assembly in the first counterbore are disposed in eight first counterbores, respectively; the eight springs disposed in one valve seat assembly in the second counterbore are disposed in eight second counterbores, respectively.

Images