CN203202260U - Combined non-rising stem type resilient seated gate valve - Google Patents
Combined non-rising stem type resilient seated gate valve Download PDFInfo
- Publication number
- CN203202260U CN203202260U CN 201320172872 CN201320172872U CN203202260U CN 203202260 U CN203202260 U CN 203202260U CN 201320172872 CN201320172872 CN 201320172872 CN 201320172872 U CN201320172872 U CN 201320172872U CN 203202260 U CN203202260 U CN 203202260U
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- valve
- sealing layer
- flashboard
- bevel gear
- gate valve
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Abstract
The utility model discloses a combined non-rising stem type resilient seated gate valve, and relates to a gate valve structure for a pipeline fluid transportation system. The gate valve mainly comprises a valve body, a valve cover, a valve stem, a flashboard, a bracket, a bevel gear transmission mechanism, a hand wheel and the like. A main point is that the flashboard is sequentially wrapped by a composite double-layer sealing layer consisting of a rubber sealing layer and a fluorine rubber sealing layer, and the outmost fluorine rubber sealing layer is an anticorrosive sealing layer, so that the improved flashboard can be applied to water and oil pipeline systems as well as pipeline systems of media with higher corrosiveness, and the application range of the valve is widened. In addition, the bevel gear transmission mechanism is adopted as the transmission mechanism of the valve, so that the starting and stopping operation torque of the flashboard can be effectively reduced, and the use of a user is facilitated. The non-rising stem type resilient seated gate valve also has the advantages of simple structure, low manufacturing cost, high operational performance and the like.
Description
Technical field
The utility model relates to the pipeline valve technical field, particularly the setting inside screw non-rising stem type gate valve of a kind of composite elastic.
Background technique
Elastic sluice valve with wedge-shaped sealing face is a kind of in many pipeline valves, be mainly used in controlling the by force fluid stopping of liquid medium in the pipeline and be widely used, its structure is that 201020611392.2 " dark bar elastic sluice valve with wedge-shaped sealing face " is similar with disclosed China Patent No., mainly comprises valve body, flashboard, valve rod, valve gap and handwheel etc.The flashboard of existing elastic sluice valve with wedge-shaped sealing face adopts rubber-wrapping structure usually, namely coat again the sealing effect that one deck rubber is realized valve on the flashboard surface of moulding, the elastic sluice valve with wedge-shaped sealing face of this structure is applicable to install and use in the pipe-line system of water and oils medium, can't be applicable in the stronger medium pipeline system of corrosivity, the use occasion of valve is restricted, and can't satisfy users' user demand.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and provides a kind of applicable to the setting inside screw non-rising stem type gate valve of composite elastic in the stronger medium pipeline system of corrosivity, and this elastic seat sealed inside screw non-rising stem type gate valve is simple in structure, fabricating cost is low, usability good.
Technical problem of the present utility model is achieved through the following technical solutions:
The setting inside screw non-rising stem type gate valve of a kind of composite elastic 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, this valve gap top is provided with bevel gear transmission mechanism, be provided with the valve rod that rotary seal is installed in the valve gap, and this valve rod lower end flashboard, upper end bevel gear transmission mechanism that is in transmission connection that is threaded, also be provided with the handwheel that is in transmission connection on this bevel gear transmission mechanism, described flashboard is provided with the compound type dual-layer sealing layer outward, and described outermost surface sealing layer is the preserving and sealing layer.
Described compound type dual-layer sealing layer is to be coated on the outer rubber sealant of flashboard and to be coated on the outer fluorine rubber sealing layer of rubber sealant.
Being tightly connected of described valve gap and valve body is that surface of contact at valve gap and valve body is provided with spacer groove, in this spacer groove packing ring is housed.
The rotary seal mounting structure of described valve rod in valve gap is to be provided with thrust bearing and "O"-ring between valve rod and valve gap.
Described valve gap top is provided with the support that is tightly connected, and this top of the trellis is provided with the bevel gear transmission mechanism that is tightly connected, and is provided with gland and "O"-ring between described valve rod and the support.
Described bevel gear transmission mechanism comprises the case lid of casing and closed box, be provided with intermeshing large bevel gear and bevel pinion in this casing, this large bevel gear rotates with bearing and is bearing in the casing, and be in transmission connection in the upper end of valve rod, the casing handwheel that is in transmission connection is stretched out in this bevel pinion end, also is provided with adjustment ring outside bevel pinion.
Compared with prior art, the utility model is to be coated with successively the compound type dual-layer sealing layer that adopts rubber sealant and fluorine rubber sealing layer outside the flashboard of elastic seat sealed inside screw non-rising stem type gate valve, and outermost fluorine rubber sealing layer is a kind of preserving and sealing layer just, therefore the flashboard after improving can be applicable in the pipe-line system of water and oils medium, also can be applicable in the stronger medium pipeline system of corrosivity.In addition, the keying that the driving mechanism of valve adopts the umbrella gear transmission can effectively alleviate flashboard operates moment of torsion, and is convenient for users to use.This elastic seat sealed inside screw non-rising stem type gate valve also has the advantages such as simple in structure, that fabricating cost is low, usability good, using scope is wide.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the sectional structure schematic diagram that the bevel gear transmission mechanism of handwheel is installed.
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. valve body, 2. flashboard, 3. rubber sealant, 4. fluorine rubber sealing layer, 5. Stem Mut, 6. valve rod, 7. packing ring, 8. valve gap, 9. bevel gear transmission mechanism, 91. casings, 92. case lids, 93. flat thrust ball bearings, 94. large bevel gears, 95. flat keys, 96. bevel pinions, 97. adjustment rings, 98. end caps, 10. socket head screw, 11. thrust bearings, 12. "O"-rings, 13. glands, 14. supports, 15. handwheels, 16. handwheel packing rings.
The setting inside screw non-rising stem type gate valve of composite elastic, as shown in Figure 1, it relates to a kind of valve mechanism for the pipeline fluid transporting system, and this elastic seat sealed inside screw non-rising stem type gate valve mainly is to be made of valve body 1, flashboard 2, valve rod 6, valve gap 8, support 14, bevel gear transmission mechanism 9 and handwheel 15 etc.
Described valve body 1 two ends are provided with flange plate, are provided with pedestal in the bottom of flange plate, and valve body 1 has valve pocket, can be used for the circulation for the pipe-line system medium, are provided with guide rail in this valve pocket.Described flashboard 2 is wedge shape, be provided with the compound type dual-layer sealing layer on its surface, be respectively and be coated on the outer rubber sealant of flashboard 3 and be coated on the outer fluorine rubber sealing layer 4 of rubber sealant, and the fluorine rubber sealing layer is a kind of preserving and sealing layer, sealing surface in it and the valve pocket is sealed and matched to form sealing effect mutually, flashboard 2 motions are able to turn on or off valve pocket, this compound type dual-layer sealing layer had both possessed good sealability, also possessed stronger decay resistance, enabled to be applicable in the management system of Korrosionsmedium; Flashboard 2 surfaces also are provided with guide-track groove, and this guide-track groove is equipped mutually with the guide rail in the valve pocket, can make flashboard 2 do upper and lower orientation movement in valve pocket, and flashboard 2 tops are provided with T-shape slot, and setting-in is fixed with Stem Mut 5 in it.
Described valve gap 8 is connected to valve body 1 top by socket head screw 10, surface of contact at valve gap 8 and valve body 1 is provided with spacer groove, oval-shaped packing ring 7 is housed in this spacer groove, and the flex point place of packing ring is provided with the node of trapezoid shaped, has realized the sealing that is connected between valve gap 8 and the valve body 1 by packing ring 7.Described valve gap 8 tops are provided with support 14 again, connect sealing with "O"-ring 12 between this support and the valve gap 8.
Described valve rod 6 vertical rotation are installed in the valve gap 8, and guarantee rotation and the sealing of valve rod 6 by thrust bearing 11 and "O"-ring 12, simultaneously between valve rod and support 14 gland 13 are set also and are connected with "O"-ring to prevent that being connected of valve rod 6 from getting loose; Described valve rod 6 lower ends are designed to screw-rod structure, and this screw flight is connected to the Stem Mut 5 of flashboard 2, make upper and lower displacement therefore can drive flashboard 2 by operating valve lever 6 rotations, thereby open valve pocket with the medium circulation in circulation medium or the partition valve pocket; Described valve rod 6 upper ends are passed support 14 and are stretched in the bevel gear transmission mechanism 9, and are subjected to bevel gear transmission mechanism to drive rotation.
Described bevel gear transmission mechanism 9 as shown in Figure 2, it comprises casing 91 and is connected screw and connects and be combined in through "O"-ring 12 sealing covers the case lid 92 of casing 91 bottoms, this case lid is sealedly connected on the flanged surface at support 14 tops by socket head screw 10 again.Be provided with intermeshing large bevel gear 94 and bevel pinion 96 in the described casing 91, on the flat thrust ball bearing 93 of this large bevel gear rotating support in casing 91, also be in transmission connection in valve rod 6 upper ends through flat key 95 simultaneously; These bevel pinion 96 rear ends are passed end cap 98 and are exposed, this end cap is fixed on the casing 91 through socket head screw 10, between end cap 98 and bevel pinion 96, "O"-ring 12 is set, the bevel pinion 96 outer adjustment rings 97 that also arrange, to carry out the adjustment of gear engagement position, the exposed junction of bevel pinion 96 is connected with handwheel 15 by flat key 95, also has been connected by screw simultaneously handwheel packing ring 16, and this handwheel 15 is namely as the power input part of whole bevel gear transmission mechanism 9.
The working method of the setting inside screw non-rising stem type gate valve of this composite elastic is: operation handwheel 15 drives large bevel gear 94 transmissions that are meshed through bevel pinion 96, so that transferring power is transformed into vertically from level, large bevel gear 94 is with ovable valve stem 6 to rotate again, can drive flashboard 2 and move up and down along valve rod 6, form the keying of valve body 1 internal valve cavity.
The above only is better embodiment of the present utility model, therefore all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (6)
1. the setting inside screw non-rising stem type gate valve of composite elastic comprises the valve body (1) with valve pocket, is provided with in this valve pocket be used to the flashboard that opens and closes described valve pocket (2); Described valve body (1) top is provided with the valve gap (8) that is tightly connected, this valve gap top is provided with bevel gear transmission mechanism (9), be provided with the valve rod (6) that rotary seal is installed in the valve gap (8), and this valve rod lower end flashboard (2), upper end bevel gear transmission mechanism (9) that is in transmission connection that is threaded, also be provided with the handwheel (15) that is in transmission connection on this bevel gear transmission mechanism, it is characterized in that being provided with the compound type dual-layer sealing layer outside the described flashboard (2), described outermost surface sealing layer is the preserving and sealing layer.
2. the setting inside screw non-rising stem type gate valve of composite elastic according to claim 1 is characterized in that described compound type dual-layer sealing layer is for being coated on the rubber sealant (3) outside the flashboard (2) and being coated on the outer fluorine rubber sealing layer (4) of rubber sealant.
3. the setting inside screw non-rising stem type gate valve of composite elastic according to claim 1, it is characterized in that being tightly connected of described valve gap (8) and valve body (1) is that surface of contact at valve gap (8) and valve body (1) is provided with spacer groove, is equipped with packing ring (7) in this spacer groove.
4. the setting inside screw non-rising stem type gate valve of composite elastic according to claim 1 is characterized in that the rotary seal mounting structure of described valve rod (6) in valve gap (8) is to be provided with thrust bearing (11) and "O"-ring (12) between valve rod (6) and valve gap (8).
5. the setting inside screw non-rising stem type gate valve of composite elastic according to claim 1, it is characterized in that described valve gap (8) top is provided with the support (14) that is tightly connected, this top of the trellis is provided with the bevel gear transmission mechanism (9) that is tightly connected, and is provided with gland (13) and "O"-ring (12) between described valve rod (6) and the support (14).
6. the setting inside screw non-rising stem type gate valve of composite elastic according to claim 1 or 5, it is characterized in that described bevel gear transmission mechanism (9) comprises the case lid (92) of casing (91) and closed box, be provided with intermeshing large bevel gear (94) and bevel pinion (96) in this casing (91), this large bevel gear with bearing (93) rotating support in casing (1), and be in transmission connection in the upper end of valve rod (6), casing (91) handwheel (15) that is in transmission connection is stretched out in this bevel pinion (96) end, also is provided with adjustment ring (97) outside bevel pinion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172872 CN203202260U (en) | 2013-04-09 | 2013-04-09 | Combined non-rising stem type resilient seated gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172872 CN203202260U (en) | 2013-04-09 | 2013-04-09 | Combined non-rising stem type resilient seated gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202260U true CN203202260U (en) | 2013-09-18 |
Family
ID=49146369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320172872 Expired - Lifetime CN203202260U (en) | 2013-04-09 | 2013-04-09 | Combined non-rising stem type resilient seated gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392976A (en) * | 2020-10-16 | 2021-02-23 | 温州奇胜阀门制造有限公司 | One-way full-sealing concealed rod type knife gate valve with cover |
| CN112610711A (en) * | 2020-11-20 | 2021-04-06 | 浙江麦上阀门有限公司 | Rotary type bevel gear gate valve |
-
2013
- 2013-04-09 CN CN 201320172872 patent/CN203202260U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392976A (en) * | 2020-10-16 | 2021-02-23 | 温州奇胜阀门制造有限公司 | One-way full-sealing concealed rod type knife gate valve with cover |
| CN112610711A (en) * | 2020-11-20 | 2021-04-06 | 浙江麦上阀门有限公司 | Rotary type bevel gear gate valve |
| CN112610711B (en) * | 2020-11-20 | 2022-08-23 | 浙江麦上阀门有限公司 | Rotary type bevel gear gate valve |
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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 |