CN210510352U - High-safety die forging ball valve - Google Patents
High-safety die forging ball valve Download PDFInfo
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- CN210510352U CN210510352U CN201921134826.1U CN201921134826U CN210510352U CN 210510352 U CN210510352 U CN 210510352U CN 201921134826 U CN201921134826 U CN 201921134826U CN 210510352 U CN210510352 U CN 210510352U
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Abstract
The utility model discloses a high safety die forging ball valve, which comprises a valve body, valve body valve pocket upper end is provided with valve ball loading mouth, be provided with the valve ball in the valve pocket, the valve ball left end is provided with first inclined plane combination formula disk seat, the valve ball right-hand member is provided with second inclined plane combination formula disk seat, the valve ball upper end is provided with the location boss, the vertical positioning groove that is provided with in location boss middle part, be provided with a slider on the boss of location, an organic whole is provided with a location lug on the lower terminal surface of slider, in the location lug inserted positioning groove, the vertical spring recess that is provided with in up end middle part of slider, the embedded spring unit that is provided with in the spring recess, be provided with the valve rod. Above-mentioned technical scheme, structural design is reasonable, simple structure, difficult leakage, sealing performance is good, the valve rod is difficult for bending or warping, the valve is opened and close moment is little, the maintenance is convenient, long service life, job stabilization and practicality are good.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to high safety die forging ball valve.
Background
The floating ball valve is a fluid control product with a large quantity and a wide range, and is widely applied to various pipeline systems. However, most of the existing ball valves are made of two-piece castings or forgings, and have the defects of more leakage points, more casting defects, air holes or sand holes and difficult control of the pretightening specific pressure of a valve seat; and current ball valve spheroid can be pushed the outlet side under the fluid medium effect, produces the motive force to the valve rod bottom, makes valve rod bending deformation easily, causes to open and close the difficulty when serious, and the valve is opened and close the moment and is too big to life and sealing performance production adverse effect, causes the work unstable, and life is short, needs frequent maintenance, nevertheless maintains the operation difficulty, uses inconveniently, and the practicality is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a structural design is reasonable, simple structure, be difficult for leaking, sealing performance is good, the valve rod is difficult for bending or warping, the valve is opened and close moment little, the maintenance is convenient, long service life, job stabilization and the good high safety die forging ball valve of practicality.
In order to achieve the above purpose, the utility model provides a following technical scheme: a high-safety die forging ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a valve ball inlet is formed in the upper end of the valve cavity, a valve ball is arranged in the valve cavity, a first inclined plane combined type valve seat is arranged at the left end of the valve ball, a second inclined plane combined type valve seat is arranged at the right end of the valve ball, a positioning boss is arranged at the upper end of the valve ball, a positioning groove is vertically formed in the middle of the positioning boss, a sliding block is arranged on the positioning boss, a positioning convex block is integrally arranged on the lower end face of the sliding block and inserted into the positioning groove, a spring groove is vertically formed in the middle of the upper end face of the sliding block, a spring assembly is embedded in the spring groove, a valve rod is arranged right above the spring assembly; the valve rod is sleeved with a valve cover, and the valve cover is detachably connected with the valve body; the valve rod lower extreme is provided with valve rod external thread portion, the valve gap middle part is provided with the valve rod hole, valve rod hole lower extreme be provided with the valve gap internal thread portion that valve rod external thread portion matches, the valve gap passes through valve gap internal thread portion and valve rod external thread portion threaded connection.
The utility model discloses further set up to: the valve body is integrally manufactured, the inner wall surface of the valve cavity is an inclined plane, and the size of the valve cavity is gradually reduced from top to bottom.
The utility model discloses still further set up to: the first inclined plane combined valve seat comprises a first metal support ring, a first valve seat sealing ring and a first valve ball sealing ring, the first metal support ring, the first valve seat sealing ring and the first valve ball sealing ring are connected to form an integrated structure, the first metal support ring is sealed with the inner wall surface of the valve cavity through the first valve seat sealing ring, and the first metal support ring is sealed with the outer surface of the valve ball through the first valve ball sealing ring.
The utility model discloses still further set up to: the second inclined plane combined valve seat comprises a second metal support ring, a second valve seat sealing ring and a second valve ball sealing ring, the second metal support ring, the second valve seat sealing ring and the second valve ball sealing ring are connected to form an integral structure, the second metal support ring forms sealing with the inner wall surface of the valve cavity through the second valve seat sealing ring, and the second metal support ring forms sealing with the outer surface of the valve ball through the second valve ball sealing ring.
The utility model discloses still further set up to: the valve rod is internally provided with an O-shaped sealing ring, a sealing filler and a packing gland in sequence from bottom to top, the upper end of the packing gland is provided with a disc spring assembly, the upper end of the disc spring assembly is provided with a positioning pressing plate, and the positioning pressing plate is fixedly connected with the valve cover through a bolt.
The utility model discloses still further set up to: a sealing gasket is arranged between the valve cover and the valve body, the valve cover and the valve body form a seal through the sealing gasket, and the valve cover and the valve body are fixedly connected through bolts.
The utility model discloses still further set up to: the middle part of the valve ball is provided with a medium through hole, the left end of the valve ball is provided with a valve ball left inclined plane, and the valve ball left inclined plane inclines towards the right from top to bottom; the right end of the valve ball is provided with a valve ball right inclined plane which inclines towards the left from top to bottom.
The utility model discloses still further set up to: and hard alloy sealing layers are welded on the right end face of the first metal supporting ring and the left end face of the second metal supporting ring.
The utility model has the advantages that: compared with the prior art, the structure of the utility model is more reasonable, the inner part of the valve is arranged from the top of the valve body, the valve body can be maintained on line, and the valve body is integrally manufactured, thereby reducing leakage points; the inclined plane combined valve seat has a simple structure and reliable work, under the action of the elastic force of the spring assembly, the elastic force acts on the sliding block and is transmitted to the valve ball, the valve ball transmits the acting force to the inclined plane combined valve seat, and the valve ball sealing ring and the valve seat sealing ring generate sealing pretightening force simultaneously; set up helicitic texture between valve rod and the valve gap, produce the axial adjustment displacement when the valve rod circumference is rotatory, the effect of production is: when the valve is closed, the spring deformation of the spring assembly is increased, the sealing force of the valve ball and each inclined plane combined valve seat is increased, the sealing effect is improved, the spring load is reduced when the valve is opened, and the opening torque of the valve is reduced; the sliding block is arranged, so that the bending action of the valve ball on the valve rod is ingeniously eliminated when the valve is closed, and the valve rod is not easy to bend; the O-shaped sealing ring, the disc spring assembly and the sealing filler are reasonably arranged, and the sealing filler can be automatically adjusted when the pressure and the temperature fluctuate, so that high safety is ensured when the valve rod works, and the environment-friendly development requirement is met; the whole high-safety die forging ball valve is reasonable in structural design, simple in structure, not prone to leakage, good in sealing performance, not prone to bending or deformation of a valve rod, small in valve opening and closing moment, convenient to maintain, long in service life, stable in work and good in practicability.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a slider according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a valve seat according to an embodiment of the present invention.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example one
Referring to fig. 1 and 2, the high safety die forging ball valve disclosed by the present invention comprises a valve body 1, a valve cavity 11 is arranged in the valve body 1, a valve ball inlet 12 is arranged at the upper end of the valve cavity 11, a valve ball 2 is arranged in the valve cavity 11, a first inclined combined valve seat 3 is arranged at the left end of the valve ball 2, a second inclined combined valve seat 4 is arranged at the right end of the valve ball 2, a positioning boss 21 is arranged at the upper end of the valve ball 2, a positioning groove 211 is vertically arranged in the middle of the positioning boss 21, a slider 5 is arranged on the positioning boss 21, a positioning bump 51 is integrally arranged on the lower end surface of the slider 5, the positioning bump 51 is inserted into the positioning groove 211, a spring groove 52 is vertically arranged in the middle of the upper end surface of the slider 5, a spring assembly 6 is embedded in the spring groove 52, a valve rod 7 is arranged right above the spring assembly, the lower end of the valve rod 7 is pressed against the upper end of the spring component 6; the valve rod 7 is sleeved with a valve cover 8, and the valve cover 8 is detachably connected with the valve body 1; the lower extreme of valve rod 7 is provided with valve rod external screw thread portion, valve gap 8 middle part is provided with valve rod hole 81, valve rod hole 81 lower extreme be provided with the valve gap internal thread portion that valve rod external screw thread portion matches, valve gap 8 passes through valve gap internal thread portion and valve rod external screw thread portion threaded connection.
Preferably, the sliding block 5 is a cross sliding block, the upper end of the sliding block 5 is provided with a valve rod limiting clamping groove 53, the lower end of the valve rod 7 is integrally provided with a limiting projection matched with the valve rod limiting clamping groove 53, and the limiting projection is inserted into the valve rod limiting clamping groove 53.
In order to make the structure of the present invention more reasonable, as preferred, the valve body 1 is integrally formed, and the inner wall surface of the valve cavity 11 is an inclined surface, the size of the valve cavity 11 is gradually reduced from top to bottom, the valve cavity 11 is in an inverted frustum-shaped structure, so that the assembly of components such as the valve ball, the first inclined surface combined valve seat 3, the second inclined surface combined valve seat 4 and the like is facilitated, and the online maintenance is easy; the valve body 1 is formed by integral modular forging.
Preferably, the valve body 1 is formed by integral modular forging.
The first inclined plane combination valve seat 3 comprises a first metal support ring 31, a first valve seat sealing ring 32 and a first valve ball sealing ring 33, the first metal support ring 31, the first valve seat sealing ring 32 and the first valve ball sealing ring 33 are connected to form an integral structure, the first metal support ring 31 forms sealing with the inner wall surface of the valve cavity 11 through the first valve seat sealing ring 32, and the first metal support ring 31 forms sealing with the outer surface of the valve ball 2 through the first valve ball sealing ring 33.
The second bevel combined valve seat 4 comprises a second metal support ring 41, a second valve seat sealing ring 42 and a second valve ball sealing ring 43, the second metal support ring 41, the second valve seat sealing ring 42 and the second valve ball sealing ring 43 are connected to form an integral structure, the second metal support ring 41 forms sealing with the inner wall surface of the valve cavity 11 through the second valve seat sealing ring 42, and the second metal support ring 41 forms sealing with the outer surface of the valve ball 2 through the second valve ball sealing ring 43.
The valve rod hole 81 is internally provided with an O-shaped sealing ring 9, a sealing filler 10 and a packing gland 13 from bottom to top in sequence, the upper end of the packing gland 13 is provided with a disc spring assembly 14, the upper end of the disc spring assembly 14 is provided with a positioning pressing plate 15, and the positioning pressing plate 15 is fixedly connected with the valve cover 8 through bolts. The valve rod 7 forms a seal with the inner wall surface of the valve rod hole 81 through an O-shaped sealing ring 9 and a sealing filler 10; when the positioning pressing plate 15 is locked, the disc spring assembly 14 is pressed, the packing gland 13 is pressed by the disc spring assembly 14, and the sealing packing 10 is pressed by the packing gland 13.
A sealing gasket 16 is arranged between the valve cover 8 and the valve body 1, the valve cover 8 and the valve body 1 form a seal through the sealing gasket 16, and the valve cover 8 and the valve body 1 are fixedly connected through bolts.
A medium through hole 22 is formed in the middle of the valve ball 2, a valve ball left inclined surface 23 is arranged at the left end of the valve ball 2, and the valve ball left inclined surface 23 inclines towards the right from top to bottom; the right end of the valve ball 2 is provided with a valve ball right inclined plane 24, and the valve ball right inclined plane 24 inclines towards the left from top to bottom.
In practical application, the internal parts of the valve are installed from the top of the valve body and can be maintained on line, and the valve body is integrally manufactured, so that leakage points are reduced; the inclined plane combined valve seat has a simple structure and reliable work, under the action of the elastic force of the spring assembly, the elastic force acts on the sliding block and is transmitted to the valve ball, the valve ball transmits the acting force to the inclined plane combined valve seat, and the valve ball sealing ring and the valve seat sealing ring generate sealing pretightening force simultaneously; set up helicitic texture between valve rod and the valve gap, produce the axial adjustment displacement when the valve rod circumference is rotatory, the effect of production is: when the valve is closed, the spring deformation of the spring assembly is increased, the sealing force of the valve ball and each inclined plane combined valve seat is increased, the sealing effect is improved, the spring load is reduced when the valve is opened, and the opening torque of the valve is reduced; the sliding block is arranged, so that the bending action of the valve ball on the valve rod is ingeniously eliminated when the valve is closed, and the valve rod is not easy to bend; the O-shaped sealing ring, the disc spring assembly and the sealing filler are reasonably arranged, and the sealing filler can be automatically adjusted when the pressure and the temperature fluctuate, so that high safety is ensured when the valve rod works, and the environment-friendly development requirement is met; the whole high-safety die forging ball valve is reasonable in structural design, simple in structure, not prone to leakage, good in sealing performance, not prone to bending or deformation of a valve rod, small in valve opening and closing moment, convenient to maintain, long in service life, stable in work and good in practicability.
Example two
Referring to fig. 3, the second embodiment improves the valve seat on the basis of the first embodiment: the valve ball sealing ring of the inclined combined valve seat is replaced by a surfacing hard alloy layer 17, so that the valve ball becomes a hard sealing ball valve, namely, the hard alloy sealing layer 17 is welded on the right end surface of the first metal supporting ring 31 and the left end surface of the second metal supporting ring 41.
The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.
Claims (8)
1. The utility model provides a high safety die forging ball valve, includes valve body (1), be provided with valve pocket (11) in valve body (1), its characterized in that: a valve ball inlet (12) is arranged at the upper end of the valve cavity (11), a valve ball (2) is arranged in the valve cavity (11), a first inclined plane combined type valve seat (3) is arranged at the left end of the valve ball (2), a second inclined plane combined type valve seat (4) is arranged at the right end of the valve ball (2), a positioning boss (21) is arranged at the upper end of the valve ball (2), a positioning groove (211) is vertically arranged in the middle of the positioning boss (21), a sliding block (5) is arranged on the positioning boss (21), a positioning lug block (51) is integrally arranged on the lower end face of the sliding block (5), the positioning lug block (51) is inserted into the positioning groove (211), a spring groove (52) is vertically arranged in the middle of the upper end face of the sliding block (5), a spring assembly (6) is embedded in the spring groove (52), and a valve rod (7) is arranged right above, the lower end of the valve rod (7) is pressed against the upper end of the spring component (6); the valve rod (7) is sleeved with a valve cover (8), and the valve cover (8) is detachably connected with the valve body (1); the valve rod (7) lower extreme is provided with valve rod external screw thread portion, valve gap (8) middle part is provided with valve rod hole (81), valve rod hole (81) lower extreme be provided with the valve gap internal thread portion that valve rod external screw thread portion matches, valve gap (8) are through valve gap internal thread portion and valve rod external screw thread portion threaded connection.
2. The high safety swaged ball valve according to claim 1, wherein: the valve body (1) is integrally manufactured, the inner wall surface of the valve cavity (11) is an inclined surface, and the size of the valve cavity (11) is gradually reduced from top to bottom.
3. The high safety swaged ball valve according to claim 2, wherein: the first inclined plane combined type valve seat (3) comprises a first metal support ring (31), a first valve seat sealing ring (32) and a first valve ball sealing ring (33), the first metal support ring (31), the first valve seat sealing ring (32) and the first valve ball sealing ring (33) are connected to form an integrated structure, the first metal support ring (31) is sealed through the first valve seat sealing ring (32) and the inner wall surface of the valve cavity (11), and the first metal support ring (31) is sealed through the first valve ball sealing ring (33) and the outer surface of the valve ball (2).
4. The high safety swaged ball valve according to claim 3, wherein: the second inclined plane combined type valve seat (4) comprises a second metal support ring (41), a second valve seat sealing ring (42) and a second valve ball sealing ring (43), the second metal support ring (41), the second valve seat sealing ring (42) and the second valve ball sealing ring (43) are connected to form an integral structure, the second metal support ring (41) is sealed with the inner wall surface of the valve cavity (11) through the second valve seat sealing ring (42), and the second metal support ring (41) is sealed with the outer surface of the valve ball (2) through the second valve ball sealing ring (43).
5. The high safety swaged ball valve according to claim 1, wherein: the valve rod hole (81) is provided with an O-shaped sealing ring (9), a sealing filler (10) and a packing gland (13) from bottom to top in proper order, the upper end of the packing gland (13) is provided with a disc spring assembly (14), the upper end of the disc spring assembly (14) is provided with a positioning pressing plate (15), and the positioning pressing plate (15) is fixed with the valve cover (8) through bolt connection.
6. The high safety swaged ball valve according to claim 1, wherein: a sealing gasket (16) is arranged between the valve cover (8) and the valve body (1), the valve cover (8) and the valve body (1) form sealing through the sealing gasket (16), and the valve cover (8) is fixedly connected with the valve body (1) through bolts.
7. The high safety swaged ball valve according to claim 1, wherein: a medium through hole (22) is formed in the middle of the valve ball (2), a valve ball left inclined surface (23) is arranged at the left end of the valve ball (2), and the valve ball left inclined surface (23) inclines towards the right from top to bottom; the right end of the valve ball (2) is provided with a valve ball right inclined plane (24), and the valve ball right inclined plane (24) inclines towards the left from top to bottom.
8. The high safety swaged ball valve according to claim 4, wherein: and hard alloy sealing layers (17) are welded on the right end surface of the first metal supporting ring (31) and the left end surface of the second metal supporting ring (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921134826.1U CN210510352U (en) | 2019-07-18 | 2019-07-18 | High-safety die forging ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921134826.1U CN210510352U (en) | 2019-07-18 | 2019-07-18 | High-safety die forging ball valve |
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| Publication Number | Publication Date |
|---|---|
| CN210510352U true CN210510352U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921134826.1U Active CN210510352U (en) | 2019-07-18 | 2019-07-18 | High-safety die forging ball valve |
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| CN (1) | CN210510352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285230A (en) * | 2019-07-18 | 2019-09-27 | 欧维克集团有限公司 | A kind of high safety die forging ball valve |
-
2019
- 2019-07-18 CN CN201921134826.1U patent/CN210510352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285230A (en) * | 2019-07-18 | 2019-09-27 | 欧维克集团有限公司 | A kind of high safety die forging ball valve |
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