CN204312754U - A kind of hard seal ball valve with elastic sealing structure - Google Patents
A kind of hard seal ball valve with elastic sealing structure Download PDFInfo
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- CN204312754U CN204312754U CN201420736304.XU CN201420736304U CN204312754U CN 204312754 U CN204312754 U CN 204312754U CN 201420736304 U CN201420736304 U CN 201420736304U CN 204312754 U CN204312754 U CN 204312754U
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Abstract
The utility model relates to a kind of hard seal ball valve with elastic sealing structure, comprise valve body, spheroid, side valve body, upper valve shaft and lower valve shaft, described spheroid is arranged in the valve body chamber of valve body, described side valve body is bolted on the end face of valve body, described upper valve shaft is connected with spheroid respectively with lower valve shaft, described side valve body is provided with valve body groove, described valve body groove inside is provided with elastic sealing structure, described elastic sealing structure comprises valve block, valve block retaining ring and valve block elastomer, it is inner that described valve block retaining ring is fixed on valve body groove, described valve block is arranged in valve block retaining ring groove, and clamped by valve block elastomer and valve block retaining ring groove madial wall, described valve block retaining ring is provided with retaining ring pore, this retaining ring pore is communicated with external pressure source by the side valve body pore being arranged on valve body groove back.Compared with prior art, the utility model has advantages such as being convenient to action, reduce wear.
Description
Technical field
The utility model relates to a kind of ball valve, especially relates to a kind of hard seal ball valve with elastic sealing structure.
Background technique
Ball valve (ball valve should be stop valve in extra large work and ship domain), is defined as in standard GB/T21465-2008 " valve term ": open-shut device (spheroid) is driven by valve rod, and around the valve that ball valve axis rotates.Also can be used for the regulating and control of fluid, wherein firmly seal between V-type ball valve its V-type ball core and metal seat valve of pile-up welding hard alloy and there is very strong shearing force, be specially adapted to the medium of fibre-bearing, a small solid material etc.In fluid conveying, ball valve is the minimum valve of a kind of flow resistance, is usually used in hydroturbine water intake valve, has good energy-saving effect.
China Patent No. is that the patent of invention of CN101614285B discloses a kind of ball valve, this ball valve is provided with the left and right auxiliary valve body that can horizontally slip at valve inner at valve inner, distance between left and right auxiliary valve body is greater than the diameter of axle of spheroid, carried out the switching manipulation of ball valve by the distance controlled between left and right auxiliary valve body, reduce friction, and Sealing is set on valve seat, by the seal, spheroid and valve seat are sealed, these ball-valve structure parts are more, complicated operation, safeguard comparatively difficulty.
Model utility content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of hard seal ball valve with elastic sealing structure be convenient to action, reduced wear is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of hard seal ball valve with elastic sealing structure, comprise valve body, spheroid, side valve body, upper valve shaft and lower valve shaft, described spheroid is arranged in the valve body chamber of valve body, described side valve body is bolted on the end face of valve body, described upper valve shaft is connected with spheroid respectively with lower valve shaft, described side valve body is provided with valve body groove, described valve body groove inside is provided with elastic sealing structure, described elastic sealing structure comprises valve block, valve block retaining ring and valve block elastomer, it is inner that described valve block retaining ring is fixed on valve body groove, described valve block is arranged in valve block retaining ring groove, and clamped by valve block elastomer and valve block retaining ring groove madial wall, described valve block retaining ring is provided with retaining ring pore, this retaining ring pore is communicated with external pressure source by the side valve body pore being arranged on valve body groove back.
Described valve block retaining ring cross section is U-shaped, its outer wall and valve body groove inwall are adjacent to, and being bolted on valve body groove inwall, described valve block is arranged in valve block retaining ring groove, and is clamped by valve block elastomer and valve block retaining ring groove madial wall.
Form valve block back cavity between described valve block and valve block retaining ring groove, described back cavity is communicated with external pressure source with side valve body pore by retaining ring pore.
Described spheroid is provided with ball seat, and described ball seat is bolted on spheroid, and its outer side surface is provided with the ball seat sealing surface of inclination.
The inner side surface of described valve block is also provided with valve block sealing surface, and described ball seat sealing surface and valve block sealing surface are oppositely arranged.
Described body top is provided with the relief hole of connecting valve body cavity and valve body outside.
The copper sheathing that described upper valve shaft and lower valve shaft are each passed through on valve body axle track is connected with spheroid.
Compared with prior art, the utility model has the following advantages:
One, be convenient to action, the switch control rule spheroid of this ball valve by the pore on elastic sealing structure and the surface of contact of valve body, make spheroid be separated with the surface of contact of valve body when ball valve action, and then reduce action moment of torsion, Convenient switch.
Two, reduce wear, this ball valve spheroid when action is in the surface of contact of valve body the state be separated, and non-direct contact, so decrease wearing and tearing, extend working life.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model.
Fig. 2 is that A-A of the present utility model is to sectional view.
Fig. 3 is that B-B of the present utility model is to sectional view.
Fig. 4 is C portion of the present utility model partial enlarged drawing.
Fig. 5 is D portion of the present utility model partial enlarged drawing.
Fig. 6 is full closing state partial structurtes schematic diagram of the present utility model.
Fig. 7 is full open state partial structurtes schematic diagram of the present utility model.
Wherein: 1, valve body, 2, spheroid, 3, side valve body, 4, upper valve shaft, 5, lower valve shaft, 6, elastic sealing structure, 7, ball valve external pressure source, 11, copper sheathing, 12, relief hole, 21, ball seat, 211, ball seat sealing surface, 31, valve body groove, 32, side valve body pore, 61, valve block, 62, valve block retaining ring, 63, valve block elastomer, 611, valve block back cavity, 612, valve block sealing surface, 621, retaining ring pore.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment:
As Figure 1-Figure 5, a kind of hard seal ball valve with elastic sealing structure, comprise valve body 1, spheroid 2, side valve body 3, upper valve shaft 4 and lower valve shaft 5, spheroid 2 is arranged in the valve body chamber of valve body 1, side valve body 3 is bolted on the end face of valve body 1, upper valve shaft 4 is connected with spheroid 2 respectively with lower valve shaft 5, side valve body 3 is provided with valve body groove 31, valve body groove 31 inside is provided with elastic sealing structure 6, elastic sealing structure 6 comprises valve block 61, valve block retaining ring 62 and valve block elastomer 63, it is inner that valve block retaining ring 62 is fixed on valve body groove 31, valve block 61 is arranged in valve block retaining ring 62 groove, and clamped by valve block elastomer 63 and valve block retaining ring 62 groove madial wall, valve block retaining ring 62 is provided with retaining ring pore 621, this retaining ring pore 621 is communicated with external pressure source 7 by the side valve body pore 32 being arranged on valve body groove 31 back.
Valve block retaining ring 62 cross section is U-shaped, its outer wall and valve body groove 31 inwall are adjacent to, and being bolted on valve body groove 31 inwall, valve block 61 is arranged in valve block retaining ring 62 groove, and is clamped by valve block elastomer 63 and valve block retaining ring 62 groove madial wall.
Form valve block back cavity 611 between valve block 61 and valve block retaining ring 62 groove, back cavity 611 is communicated with external pressure source 7 with side valve body pore 32 by retaining ring pore 621.
Spheroid 2 is provided with ball seat 21, and ball seat 21 is bolted on spheroid 2, and its outer side surface is provided with the ball seat sealing surface 211 of inclination.
The inner side surface of valve block 61 is also provided with valve block sealing surface 612, and ball seat sealing surface 211 and valve block sealing surface 612 are oppositely arranged.
Valve body 1 top is provided with the relief hole 12 of connecting valve body cavity and valve body outside.
The copper sheathing 11 that upper valve shaft 4 and lower valve shaft 5 are each passed through on valve body 1 axle track is connected with spheroid 2.
As shown in Figure 4, after valve is initially assembled, when ball valve is in the closed position, ball seat sealing surface 211 and valve block sealing surface 612 are oppositely arranged, and are provided with gap between ball seat sealing surface 211 and valve block sealing surface 612.
As shown in Figure 6, when enough large ball valve external pressure source 7 is by the retaining ring pore 621 of the side valve body pore 32 on side valve body 3 and valve block retaining ring 62 bottom faces
Enter the back cavity 611 of valve block 61, because valve block elastomer 63 has elasticity and sealing, pressure promotes valve block 61 and moves to ball seat 21, until contact forms sealing.For ensureing sealing, endoceliac for valve pressure is discharged by the relief hole 12 on valve body 1 simultaneously.Ball valve external pressure source 7 can be separate outer pressure source, also can take from internal pipe pressure.
As shown in Figure 7, before opening valve and before throttle down, remove ball valve external pressure source 7, by retaining ring pore 621 and side valve body pore 32, valve block back cavity 611 internal pressure is discharged, valve block, 61 under the spring-back force effect of valve internal pressure and valve block elastomer 63, departs from ball seat 21, ball seat sealing surface 211 and valve block sealing surface 612 depart from, and open in valve process and greatly reduce valve opening moment of torsion and the prooving of valve seat.
The utility model proposes a kind of hard seal ball valve with elastic sealing structure, this elastic sealing structure can stretch by certain setting program, reduce the operation moment of torsion of valve, and make on-line maintenance become possibility, the valve seat of this hard seal ball valve also can do three-dimensional movement in certain limit, energy automatic centering, reduces and leaks, reduce wear.
Claims (7)
1. the hard seal ball valve with elastic sealing structure, comprise valve body (1), spheroid (2), side valve body (3), upper valve shaft (4) and lower valve shaft (5), described spheroid (2) is arranged in the valve body chamber of valve body (1), described side valve body (3) is bolted on the end face of valve body (1), described upper valve shaft (4) is connected with spheroid (2) respectively with lower valve shaft (5), it is characterized in that, described side valve body (3) is provided with valve body groove (31), described valve body groove (31) inside is provided with elastic sealing structure (6), described elastic sealing structure (6) comprises valve block (61), valve block retaining ring (62) and valve block elastomer (63), it is inner that described valve block retaining ring (62) is fixed on valve body groove (31), described valve block (61) is arranged in valve block retaining ring (62) groove, and clamped by valve block elastomer (63) and valve block retaining ring (62) groove madial wall, described valve block retaining ring (62) is provided with retaining ring pore (621), this retaining ring pore (621) is communicated with external pressure source (7) by the side valve body pore (32) being arranged on valve body groove (31) back.
2. a kind of hard seal ball valve with elastic sealing structure according to claim 1, it is characterized in that, described valve block retaining ring (62) cross section is U-shaped, its outer wall and valve body groove (31) inwall are adjacent to, and be bolted on valve body groove (31) inwall, described valve block (61) is arranged in valve block retaining ring (62) groove, and is clamped by valve block elastomer (63) and valve block retaining ring (62) groove madial wall.
3. a kind of hard seal ball valve with elastic sealing structure according to claim 2, it is characterized in that, form valve block back cavity (611) between described valve block (61) and valve block retaining ring (62) groove, described back cavity (611) is communicated with external pressure source (7) with side valve body pore (32) by retaining ring pore (621).
4. a kind of hard seal ball valve with elastic sealing structure according to claim 1, it is characterized in that, described spheroid (2) is provided with ball seat (21), described ball seat (21) is bolted on spheroid (2), and its outer side surface is provided with the ball seat sealing surface (211) of inclination.
5. a kind of hard seal ball valve with elastic sealing structure according to claim 4, it is characterized in that, the inner side surface of described valve block (61) is also provided with valve block sealing surface (612), and described ball seat sealing surface (211) and valve block sealing surface (612) are oppositely arranged.
6. a kind of hard seal ball valve with elastic sealing structure according to claim 1, is characterized in that, described valve body (1) top is provided with the relief hole (12) of connecting valve body cavity and valve body outside.
7. a kind of hard seal ball valve with elastic sealing structure according to claim 1, it is characterized in that, the copper sheathing (11) that described upper valve shaft (4) and lower valve shaft (5) are each passed through on valve body (1) axle track is connected with spheroid (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736304.XU CN204312754U (en) | 2014-11-27 | 2014-11-27 | A kind of hard seal ball valve with elastic sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736304.XU CN204312754U (en) | 2014-11-27 | 2014-11-27 | A kind of hard seal ball valve with elastic sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312754U true CN204312754U (en) | 2015-05-06 |
Family
ID=53135072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420736304.XU Active CN204312754U (en) | 2014-11-27 | 2014-11-27 | A kind of hard seal ball valve with elastic sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312754U (en) |
-
2014
- 2014-11-27 CN CN201420736304.XU patent/CN204312754U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Co-patentee after: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Patentee after: Shanghai Guanlong Valve Machinery Co., Ltd Address before: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Co-patentee before: SHANGHAI CHIRONG AUTOMATION Co.,Ltd. Patentee before: Shanghai Guanlong Valve Machinery Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Patentee after: Shanghai Guanlong valve energy saving equipment Co., Ltd Patentee after: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Address before: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Patentee before: Shanghai Guanlong Valve Machinery Co., Ltd Patentee before: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. |