CN203202342U - Combined-type flange gate valve - Google Patents
Combined-type flange gate valve Download PDFInfo
- Publication number
- CN203202342U CN203202342U CN 201320175735 CN201320175735U CN203202342U CN 203202342 U CN203202342 U CN 203202342U CN 201320175735 CN201320175735 CN 201320175735 CN 201320175735 U CN201320175735 U CN 201320175735U CN 203202342 U CN203202342 U CN 203202342U
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- valve
- flange
- valve body
- gate valve
- flange gate
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Abstract
The utility model discloses a combined-type flange gate valve, and relates to a valve structure for controlling the connection and disconnection of an urban water supply system, a petroleum pipeline system, a control system and the like. The combined-type flange gate valve mainly consists of a valve body, a flange, an adapter, a valve cover, a damper, a valve rod and a hand wheel, wherein the valve body and the flange are designed in a combined form, the flange is positioned on the end part of the valve body, and the adapter is adopted as a connection and fixation structure. Therefore, the structures of the valve body and flange are simpler, the valve body can be made of a brass material and machined through a forging process with a relatively stable quality, the production cost and material cost of the valve body can be much lower than those of a cast valve body, and the flange can be made of a forced steel material with low cost; according to the improved flange gate valve, the production cost is also reduced on the basis of guaranteeing the advantages of the flange gate valve; and the flange gate valve also has the advantages of reliability in quality and suitability for mass production, and the cost performance of a product can be improved.
Description
Technical field
The utility model relates to a kind of gate valve structure for control pipeline system switching, refers in particular to the modular flange gate valve.
Background technique
Flange Gate Valves is to use very widely a kind of control gear in the pipe-line system, be mainly used in controlling the city for the break-make of water supply system, petroleum pipeline system, control system etc., because it has that the bodily form is little, fluid resistance is little, hoisting capacity is little, MEDIA FLOW is to the advantage such as unrestricted, therefore have irreplaceable effect in pipe-line system.Traditional Flange Gate Valves such as disclosed China Patent No. are 201220157163.7 " a kind of novel flange gate valve ", its structure normally is made of valve body, flashboard, valve gap, valve rod, handwheel, filler and flange etc., and employing valve body and flange integral structure, this just causes the valve body shape comparatively complicated, valve body and flange can only adopt that manufacturing efficiency is lower, the unsettled casting of blank quality, have greatly affected the cost of production of product.
Summary of the invention
, technical problem to be solved in the utility model provides that a kind of forging, cost of production are low, the modular flange gate valve of reliable product quality but being to overcome the defective of prior art, this Flange Gate Valves can effectively be eliminated the unstable and high problem of cost of production of blank quality that casting causes, has reduced again cost of production on the basis that guarantees the advantage of Flange Gate Valves own.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of modular flange gate valve comprises the valve body with valve pocket, is provided with in this valve pocket be used to the flashboard that opens and closes described valve pocket; Described valve body top is provided with the valve gap that is tightly connected, and is provided with in this valve gap that an end connects flashboard, the other end stretches out the valve rod that valve gap exposes, and is provided with the handwheel that is in transmission connection at the exposed junction of valve rod; Be provided with filler between described valve rod and the valve gap; Described valve body two ends are respectively equipped with flange, and described flange location and installation is at valve end, and are connected fixing by conversion adapter.
The positioning and mounting structure of described flange and valve end is to be respectively equipped with equipped mutually positioning bar and locating slot between flange and valve end.
The positioning and mounting structure of described flange and valve end is to be respectively equipped with equipped mutually positioning bar and positioning boss between flange and valve end.
Described valve gap top is provided with the stuffing box of opened upper end, is provided with filler and the trim ring of packing into successively from top in this stuffing box, also is provided with the gland nut that is connected to the valve gap top.
The bottom surface of contact of described filler and stuffing box is the inclined-plane.
Be provided with collar between described valve rod and the valve gap.
Be provided with through hole in the described conversion adapter, be provided with interior Fang Xin in this through hole.
Be provided with square shaft between described valve rod exposed junction and the handwheel, square hole is in transmission connection, the party's shaft end also is connected with label and locking nut.
Compared with prior art, the utility model is that the valve body of Flange Gate Valves and flange have been adopted the combined type design, adopts the flange location and installation at valve end, connects fixing structure by conversion adapter again.Therefore, the structure of valve body and flange is all more simple, valve body can adopt brass material, and the metastable Forging Technology of service property (quality), the cost of production of valve body all reduces a lot than the casting valve body with cost of material, and flange can adopt lower-cost forged steel material, and the Flange Gate Valves after the improvement has reduced again cost of production on the basis of the advantage of assurance own, also has the advantages such as reliable in quality, suitable production in enormous quantities.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model (half section state).
Fig. 2 is the structural representation of flange.
Embodiment
The below will elaborate to the utility model embodiment by above-mentioned accompanying drawing again.
As shown in Figure 1 and Figure 2,1. locking nut, 2. label, 3. handwheel, 4. valve rod, 5. gland nut, 6. trim ring, 7. filler, 8. collar, 9. valve gap, 10. gasket seal, 11. positioning bars, 12. flashboards, 13. interior Fang Xin, 14. conversion adapters, 15. valve bodies, 16. flanges, 17. positioning boss.
The modular flange gate valve, as shown in Figure 1, it relates to a kind of valve mechanism for control pipeline system switching, mainly is to be made of valve body 15, flange 16, conversion adapter 14, valve gap 9, flashboard 12, valve rod 4 and handwheel 3 etc.
Be provided with the valve pocket that level connects in the described valve body 15, can be used for the circulation for the pipe-line system medium; Valve body 15 two ends are respectively equipped with the flange 16 of location and installation, and this flange and valve body 15 have adopted split-type design.Therefore, valve body 15 all becomes more simple with the structure of flange 16, valve body 15 can adopt brass material, and the metastable Forging Technology of service property (quality), this just compares and adopts the conventional flange gate valve of casting valve body greatly to reduce cost of production and cost of material, and flange 16 can adopt lower-cost forged steel material, and it has reduced again cost of production on the basis of the advantage of assurance own.
Described flange 16 mainly is the positioning bar 11 that is provided with four circumference uniform distributions in valve body 15 end outer surface with the positioning and mounting structure of valve body 15, correspondingly be provided with four at flange 16 and make the locating slot of positioning assembling with described positioning bar 11, by being equipped with so that can not rotate between the flange 16 that is in place and the valve body 15 of positioning bar 11 and locating slot, then the conversion adapter 14 of a hollow structure is tightened on the internal thread of valve body 15 ends so that flange 16 forms is connected and fixed, therefore the sealing surface of Flange Gate Valves and pipeline is directly arranged on the conversion adapter 14, can guarantee the reliability that seals to prevent that pipeline medium from leaking.Simultaneously, above-mentioned locating slot not only can be designed to the structure of groove, also can adopt as shown in Figure 2 cylindrical positioning boss 17 structures, reach equally preferably positioning assembling effect, also more save material, and that positioning boss is not limited only to also is cylindrical, such as square column type or other shapes.In conversion adapter 14, also be provided with through hole, be designed with interior side's core 13 in this through hole, being rotatably connected when making things convenient for conversion adapter 14 assembling.
Described valve gap 9 is threaded in valve body 15 tops, is provided with gasket seal 10 to connect sealing between valve gap 9 and valve body 15; Described valve rod 4 is rotatably installed in the valve gap 9, screw-rod structure is adopted in this valve rod lower end, its flashboard interior with being arranged on valve pocket 12 forms and is threaded, and does upper and lower elevating movement therefore valve rod 4 rotations can drive flashboard 12, to cut off the medium circulation in the valve pocket or to open valve pocket with circulation medium; These valve rod 4 upper ends protrude upward valve gap 9 and expose, the exposed junction of valve rod is designed to the square axis structure, simultaneously, one handwheel 3 with cubic hole is sleeved on the square axis that valve rod 4 exposes, and also is set with label 2 on this valve rod exposed junction, then with locking nut 1 locking that is threaded, therefore formed transmission connecting structure between handwheel 3 and the valve rod 4, operation handwheel 3 can be with ovable valve stem 4 to rotate, and also is provided with block on the handwheel 3, with the rotation angle of restriction handwheel.
Form stuffing box between described valve rod 4 and the valve gap 9, this stuffing box is opened upper end formula structure, it mainly designs at valve gap 9 tops, filler 7 can directly be packed in this stuffing box, be provided with trim ring 6 on filler 7 tops, also be provided with the gland nut 5 that is threaded in valve gap 9 tops, can provide downward impacting force by rotating gland nut, be used for trim ring 6 and filler 7 are compressed; Bottom surface of contact between described filler 7 and the stuffing box is designed to the inclined-plane, and when compressed by gland nut 5 downwards, these filler 7 relative stuffing box extrusion expansions make down pressure change lateral pressure into, thereby is connected sealing between formation valve rod 4 and the valve gap 9.Be provided with collar 8 between described valve rod 4 and the valve gap 9, to guarantee the stability of rotation of valve rod.
The utility model only needed finish on the basis of inner screw thread gate valve in when assembling, conversion adapter 14 and flange 16 is tightened on valve body 15 two ends get final product, and assembly process is very convenient, rational in infrastructure reliably; And being threaded of between valve body 15 and conversion adapter 14, adopting, greatly reduced the structure complexity of valve body, can use Forging Technology to make easily, flange 16 adopts lower-cost forged steel material simultaneously, also greatly reduce cost of production and cost of material, improved the product cost performance.
Claims (8)
1. a modular flange gate valve comprises the valve body (15) with valve pocket, is provided with in this valve pocket be used to the flashboard that opens and closes described valve pocket (12); Described valve body (15) top is provided with the valve gap (9) that is tightly connected, and is provided with in this valve gap that an end connects flashboard (12), the other end stretches out the valve rod (4) that valve gap (9) exposes, and is provided with the handwheel (3) that is in transmission connection at the exposed junction of valve rod; Be provided with filler (7) between described valve rod (4) and the valve gap (9); Described valve body (15) two ends are respectively equipped with flange (16), it is characterized in that described flange (16) location and installation in valve body (15) end, and connect fixing by conversion adapter (14).
2. modular flange gate valve according to claim 1, the positioning and mounting structure that it is characterized in that described flange (16) and valve body (15) end are to be respectively equipped with equipped mutually positioning bar (11) and locating slot between flange (16) and valve body (15) end.
3. modular flange gate valve according to claim 1, the positioning and mounting structure that it is characterized in that described flange (16) and valve body (15) end are to be respectively equipped with equipped mutually positioning bar (11) and positioning boss (17) between flange (16) and valve body (15) end.
4. modular flange gate valve according to claim 1, it is characterized in that described valve gap (9) top is provided with the stuffing box of opened upper end, be provided with filler (7) and the trim ring (6) of packing into successively from top in this stuffing box, also be provided with the gland nut (5) that is connected to valve gap (9) top.
5. modular flange gate valve according to claim 4 is characterized in that described filler (7) and the bottom surface of contact of stuffing box are the inclined-plane.
6. modular flange gate valve according to claim 1 is characterized in that being provided with collar (8) between described valve rod (4) and the valve gap (9).
7. modular flange gate valve according to claim 1 is characterized in that being provided with through hole in the described conversion adapter (14), is provided with interior Fang Xin (13) in this through hole.
8. each described modular flange gate valve according to claim 1 ~ 7 is characterized in that being provided with square shaft between described valve rod (4) exposed junction and the handwheel (3), square hole is in transmission connection, and the party's shaft end also is connected with label (2) and locking nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175735 CN203202342U (en) | 2013-04-10 | 2013-04-10 | Combined-type flange gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175735 CN203202342U (en) | 2013-04-10 | 2013-04-10 | Combined-type flange gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202342U true CN203202342U (en) | 2013-09-18 |
Family
ID=49146451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320175735 Expired - Lifetime CN203202342U (en) | 2013-04-10 | 2013-04-10 | Combined-type flange gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202208A (en) * | 2015-09-23 | 2015-12-30 | 埃镁特（天津）流体控制设备有限公司 | Inorganic-machining vacuum evanescent mode valve casting technology |
-
2013
- 2013-04-10 CN CN 201320175735 patent/CN203202342U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202208A (en) * | 2015-09-23 | 2015-12-30 | 埃镁特（天津）流体控制设备有限公司 | Inorganic-machining vacuum evanescent mode valve casting technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
|
| CX01 | Expiry of patent term |