CN202360791U - Novel arc cut-off and control valve - Google Patents
Novel arc cut-off and control valve Download PDFInfo
- Publication number
- CN202360791U CN202360791U CN2011204964370U CN201120496437U CN202360791U CN 202360791 U CN202360791 U CN 202360791U CN 2011204964370 U CN2011204964370 U CN 2011204964370U CN 201120496437 U CN201120496437 U CN 201120496437U CN 202360791 U CN202360791 U CN 202360791U
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- valve
- flap
- arc
- worm gear
- worm
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a novel arc cut-off and control valve, comprising a valve body, a valve hood, a worm, worm gear, a valve rod, a valve flap, an outlet flange and an inlet flange, wherein the outlet flange and the inlet flange are connected with a cylindrical wall of the valve body; a working surface of the valve flap connected with the valve rod is a long outer arc; a long arc valve-port sealing lining is embedded on the inlet of the inner wall of the valve body; an outer arc surface of the valve flap tightly fits an inner arc surface of the valve port sealing lining on one arc surface; one end of the valve rod is located in a central countersink of the side wall of the valve body; the other end of the valve rod is located on a central through hole of the valve hood; the worm gear is arranged on the outer end of the valve rod; the worm matching the worm gear is arranged on a worm gear box; the worm gear box is connected with the valve hood; and a hand wheel is arranged on the upper end of the worm. The valve flap comprises a shaft sleeve connected with the worm, a supporting rib and an arc working surface, wherein the supporting rib is connected with the shaft sleeve and the arc working surface; the outer arc surface of the arc working surface is 90-degree arc length; and the length of the valve matches the length of the valve chamber. Valve flap limiting islands are arranged on the valve hood; two valve limiting islands are located on the position of the valve flap rotating 90 degrees in positive and negative directions.
Description
Technical field
The utility model relates to a kind of novel arc formula and closes the joint valve, be to the pipeline medium block, the valve of throttling or overflow Comprehensive Control, belong to the fluid delivery systems technical field.Can be widely used in oil, chemical industry, chemical fertilizer, electric power, light textile, daily water supply and sewage cause.
Background technique
China's valve industry develops rapidly, but most product also is imitated external, and on the functional configuration of product, lacks synthesization, owing to function singleness overlaps its number of mass energy waste nothing meter that causes is installed.Valves such as required function is blocked, throttling, shunting, pressure release overflow are installed like a main pipe.Though it is more reasonable to seem configuration, with regard to working life and energy-saving safe aspect, there are very big mistaken ideas, show as:
1, block valve class is also claimed cut-off valve, and its effect is to connect or block the medium in the pipeline.Like gate valve; It just can only serve this function, and reasonably use should all be opened or complete closure, and in fact generally all is its single being installed on the pipeline; It is is not only opened and closed but also serve as the long-pending throttle with adjustment flow and pressure of change passage sections and use, and this just seems extremely unreasonable.Because gate valve is after full open, pressure medium is passed through by latus rectum smoothly, and is minimum to the negative pressure that flap and valve rod bear.Change the long-pending words of using with adjustment flow and pressure of passage sections as being used as it; Its flap must be semi-open or 2/3 permitted opening state; Particularly when being in this state for a long time, hovering hangs over the flap on the valve rod, and (the large bore valves comprehensive gap loses support approximately≤20mm) owing to gap between valve body and the flap both sides guiding groove and between the flap guide hole is very big; Receive the long-term impact and the extruding of medium high speed lateral pressure and resistance, very easily make the crooked or distortion of valve rod modification.When valve originally sealing on one's body need reinforcement that stuffing box packing and following connecting leg road need repairing or when changing, its flap opens the valve function with regard to what again can't accomplish it, its consequence is to drain the water of whole feed cisterns, causes enormous economic loss.Make valve or pipe breakage as forcing to act rashly, with causing serious leakage security incident.Therefore, type of blocking gate valve can not serve as throttling or relief valve use.
2, throttle valve is flow and a pressure of regulating the pipeline medium through the sectional area that changes valve passage.Sectional area is more little, and the suffered resistance of the medium that flows through is just big more, and flow is also just more little.Throttle valve can not be made block valve usefulness, and generally it is not with sealing surface, even have sealing surface, sealing surface is etched under the effect of high speed medium very soon, loses sealing.Therefore, throttle valve can not replace the effect of cut-off valve.
3, since gate valve closed circuit after; The lock lobe receives the extruding of the transversal pressure of medium; The unlatching of residual corrosion dirt parcel valve rod, particularly large bore valves is gruelling in the medium in addition, and therefore flap screw and valve rod dropout phenomenon take place often; When pipeline needs timely pressure release or overflow, the especially clumsiness of performance.
Summary of the invention
The purpose of the utility model is that a kind of novel arc formula of design is closed the joint valve; On a middle heavy caliber pipeline, only need to install one " novel arc formula is closed the joint valve "; Just can comprehensively bear closed circuit and two kinds of functional tasks of throttling; Needn't look like traditional approach two of cut-off valve and throttle valve are installed respectively simultaneously, both practice thrift equipment and energy consumption, simplify the purpose of installation procedure again.
The technological scheme of the utility model is: the novel arc formula of the utility model is closed the joint valve and is comprised valve body, valve gap, worm screw, worm gear, valve rod, flap, outlet(discharge) flange, suction flange; Its outlet(discharge) flange is connected with the valve body cylindrical wall with suction flange; The working surface of the flap that is connected with valve rod is microscler outer arced surface; Microscler cambered surface sealing valve port backing member of valve interior wall inlet insert, the intrados driving fit of the outer arced surface of flap and sealing valve port backing member is on a cambered surface; Valve rod one end is positioned in the counterbore of body wall center, and the other end is positioned on the central through bore of valve gap, and worm gear is installed in the valve rod outer end; Be installed on the turbine box with the worm screw of worm gear coupling, turbine box is connected on the valve gap, and handwheel is installed in the worm screw upper end.
Described flap comprises the axle sleeve that is connected with valve rod, and supporting rib and curved working face, supporting rib connecting bushing and curved working face, the outer arced surface of curved working face are 90 ° of arc length, the length of flap and valve pocket length coupling.
On valve gap, be provided with the spacing island of flap, there are two positions that are positioned at the positive and negative half-twist of flap on the spacing island of flap.
The beneficial effect of the utility model:
1, realized that block valve (cut-off valve) and throttle valve divide the work single installation at pipeline, changing into only needs to install a novel arc formula and closes the joint valve and can comprehensively accomplish effects closed circuit and throttling adjustment rate-of flow, two major functions of pressure.
2, realized flap reciprocal 90 ° open and close spacing in, when opening the different amount throttling arbitrarily, can distortion influence the effect of recovery with valve rod because of pressure medium or resistance extruding flap.
3, realized keeping away and abandoned that former valve rod and the hard torsion of flap screw thread open valve and the phenomenon that is prone to cause thread off; Because it is half arc that this novel arc formula is closed the flap design of joint valve; Transversal resistance reduces, and therefore, no matter much equal can the reaching of pressure are transmitted the effect of carrying out switching motion light sparing.
4, the effect that has prolonged valve working life.
5, every pipeline can be saved a deck valve door, has reached for the user reduces installation cost, saves the effect of the energy for country.
6, the unrestricted and maintaining of installation direction and angle effect easily.
7, guarantee that reliably valve rod and flap not because of long-term semi-open pressure medium, the resistance of receiving is out of shape, act on closed circuit, two kinds of functions of throttling arbitrarily.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model.
Fig. 2 is the horizontal sectional structure schematic representation of the utility model.
Fig. 3 is Fig. 2 A-A sectional structure schematic representation.
Fig. 4 is flap 6 end views.
Fig. 5 is the B-B sectional view of Fig. 4.
Embodiment
Below according to accompanying drawing this novel arc formula being closed joint valve embodiment is described in detail:
Like Fig. 1, Fig. 2: the novel arc formula of the utility model is closed the joint valve and is comprised valve body 1, valve gap 2, worm screw 3, worm gear 4, valve rod 5, flap 6, outlet(discharge) flange 7, suction flange 8; Its outlet(discharge) flange 7 is connected with valve body 1 cylindrical wall with suction flange 8; The working surface of the flap 6 that is connected with valve rod 5 is microscler outer arced surface; Microscler cambered surface sealing valve port backing member 14 of valve interior wall inlet insert, the intrados driving fit of the outer arced surface of flap 6 and sealing valve port backing member 14 is on a cambered surface; Valve rod 5 one ends are positioned in the counterbore 1a of body wall center, and the other end is positioned on the central through bore of valve gap 2, and worm gear 4 is installed in valve rod 5 outer ends; Be installed on the turbine box 9 with the worm screw 3 of worm gear 4 couplings, turbine box 9 is connected on the valve gap 2, and handwheel 15 is installed in worm screw 3 upper ends.The 10th, valve spindle gland, the 11st, graphite cannula, the 12nd, seal ring, the 13rd, sealing gasket.On valve gap 2, be provided with the spacing island 2a of flap, the spacing island 2a of flap has two positions that are positioned at flap 6 positive and negative half-twists.
The outer arced surface of the working surface of flap 6 is 90 ° of arc length, the length of flap 6 and valve pocket length coupling.
Fig. 4, body 5 are flap structural representations: flap 6 comprises the axle sleeve 6a that is connected with valve rod 5; Supporting rib 6b and curved working face 6c; Supporting rib 6b connecting bushing 6a and curved working face 6c, the outer arced surface of curved working face 6c are 90 ° of arc length, the length of flap 6 and valve pocket length coupling.
Fig. 3 is the medium import for Fig. 2 A-A sectional structure schematic representation: 8a, and 7a is a media outlet.
Can select corresponding material, wall thickness and latus rectum for use according to different circulation mediums, different bearing capacity, different Applicable temperature in the utility model technology manufacture process, to satisfy the operating mode needs.
The core of the utility model be adopt that horizontal on-off structure is closed circuit with the arc that reduces pipeline input resistance, unlatching and stepless throttle style, only need the novel arc formula of a playscript with stage directions close the joint valve, can accomplish medium and block closed circuit and unlatching and throttling.Therefore, every employing cambered surface flap adopts the arc formula to open and close, and all belongs to the protection domain of the utility model.
Claims (3)
1. a novel arc formula is closed the joint valve; Comprise valve body (1), valve gap (2), worm screw (3), worm gear (4), valve rod (5), flap (6), outlet(discharge) flange (7), suction flange (8); It is characterized in that: outlet(discharge) flange (7) is connected with valve body (1) cylindrical wall with suction flange (8); The working surface of the flap (6) that is connected with valve rod (5) is microscler outer arced surface; A microscler cambered surface sealing valve port backing member of valve interior wall inlet insert (14), the intrados driving fit of the outer arced surface of flap (6) and sealing valve port backing member (14) is on a cambered surface; Valve rod (5) one ends are positioned in the body wall center counterbore (1a), and the other end is positioned on the central through bore of valve gap (2), and worm gear (4) is installed in valve rod (5) outer end; Be installed on the turbine box (9) with the worm screw (3) of worm gear (4) coupling, turbine box (9) is connected on the valve gap (2), and handwheel (15) is installed in worm screw (3) upper end.
2. novel arc formula according to claim 1 is closed the joint valve; It is characterized in that: flap (6) comprises the axle sleeve (6a) that is connected with valve rod (5); Supporting rib (6b) and curved working face (6c); Supporting rib (6b) connecting bushing (6a) and curved working face (6c), the outer arced surface of curved working face (6c) is 90 ° of arc length, the length of flap (6) and valve pocket length coupling.
3. novel arc formula according to claim 1 and 2 is closed the joint valve, it is characterized in that: on valve gap (2), be provided with the spacing island of flap (2a), there are two positions that are positioned at the positive and negative half-twist of flap (6) on the spacing island of flap (2a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204964370U CN202360791U (en) | 2011-12-02 | 2011-12-02 | Novel arc cut-off and control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204964370U CN202360791U (en) | 2011-12-02 | 2011-12-02 | Novel arc cut-off and control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360791U true CN202360791U (en) | 2012-08-01 |
Family
ID=46571979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204964370U Expired - Fee Related CN202360791U (en) | 2011-12-02 | 2011-12-02 | Novel arc cut-off and control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148266A (en) * | 2013-03-19 | 2013-06-12 | 苏州市凯泰机械有限公司 | Primary planet gear-driven rotary valve manual device |
| CN104089040A (en) * | 2014-07-28 | 2014-10-08 | 铁岭大沃阀门（集团）有限公司 | Oppositely-opened type large-caliber hemispherical valve |
-
2011
- 2011-12-02 CN CN2011204964370U patent/CN202360791U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148266A (en) * | 2013-03-19 | 2013-06-12 | 苏州市凯泰机械有限公司 | Primary planet gear-driven rotary valve manual device |
| CN104089040A (en) * | 2014-07-28 | 2014-10-08 | 铁岭大沃阀门（集团）有限公司 | Oppositely-opened type large-caliber hemispherical valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |