CN204900881U - Guide tracked manual push -pull valve of two poles - Google Patents
Guide tracked manual push -pull valve of two poles Download PDFInfo
- Publication number
- CN204900881U CN204900881U CN201520307958.5U CN201520307958U CN204900881U CN 204900881 U CN204900881 U CN 204900881U CN 201520307958 U CN201520307958 U CN 201520307958U CN 204900881 U CN204900881 U CN 204900881U
- Authority
- CN
- China
- Prior art keywords
- valve body
- plate
- rod guide
- sliding sleeve
- center line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a guide tracked manual push -pull valve of two poles constitutes its characterized in that by valve body (1), sliding sleeve (2), two rod guidance rail (3), end sealed (4), inside seal (8), picture peg (9) and transmission: add two rod guidance rail (3) between valve body (1) and picture peg (9), the welding of picture peg (9) end has sliding sleeve (2), sliding sleeve (2) penetrate the hookup on two rod guidance rail (3) of valve body (1), lead screw (6) is rotated in hand wheel (7) through transmission, the linear removal is done through nut (5) along two rod guidance rail (3) in picture peg (9) in valve body (1), this kind two rod guidance rail (3) and sliding sleeve (2) its movable fit clearance, the depth of parallelism of two poles, the levelness, longitudinal center line, can satisfy and accomplish identical requirement with valve body (1) longitudinal center line, when remove in sliding sleeve (2) guide picture peg (9), the error amount that does not deviate valve body (1) longitudinal center line, strength has been guaranteed not suppress, the resistance is little, the operation is nimble. Inside seal (8) add, sealed (4) the rubber slab edge of a knife in end is hugged closely on picture peg (9) face, does not have the undulant interference of levelness, prevents the dust excessive at valve body (1) intracavity.
Description
Technical field
The present invention relates to a kind of two rod guide formula hand operated gate valve, belong to dust removal by ventilation auxiliary equipment field.
Background technique
In dust removal by ventilation pipe-line system, be balance air quantity, effectively each air quantity sucked except dirt pits of adjustment, wind energy is utilized, pipe-line system is by pipe through arranging various sizes under normal circumstances, and flow control valve not of uniform size, modulating valve can adopt butterfly valve or push-pull valve.Push-pull valve is better than butterfly valve, and its maximum feature is that structure is relatively simple, the high-visible convenient operation of yardstick of adjustment air quantity.Ash discharge deashing in dust removal by ventilation and desulfurizing technology system, adopts in the devices such as pneumatic air-supply in a large number, and their effect has two, and one is close, and is conducive to overhauling under non-stop-machine operating mode.Two are, adjust flux balance sysmte air quantity.
The push-pull valve of prior art, it is made up of valve body, plate and transmission device.According to different operating modes, the kind of drive, except pneumatic, is generally manual or electronic, substantially all adopts screw mandrel also to have and adopts loop chain transmission.Screw rod transmission has two kinds of modes.One is that nut and plate are connected and fixed, and nut moves; Another kind is that screw mandrel and plate are connected and fixed, and nut is fixed, and screw mandrel moves, and two kinds of different screw rod transmission mode effects are identical, just for provide can select and with.
The push-pull valve of prior art is under negative pressure operating mode, serious deficiency is leaked in existing, cause system air leakage rate well beyond 10% of design load, for the pipe-line system of concentrated dust-removing, except dirt pits is more, huger, the push-pull valve that each tightness is bad, with accumulative calculating air leak rate of air curtain of leaking out, leak out surprising well beyond design load, so strengthen the bubble-tight improvement of push-pull valve to seem particularly important.But the significance overcoming interior leakage is often ignored by people, its reason can't see flour dust overflow under negative pressure operating mode, do not leak outside, the relatively good decline in alertness with regard to OK of push-pull valve surrounding environment, and this interior leakage out and outly adds operating cost.Under malleation operating mode, there is the serious defect that leaks outside, malleation leaks outside more greatly more serious, serious befouling environment.
The push-pull valve of prior art, by hand wheel rotating screw mandrel, plate is made to make Linear-moving in valve body, plate moves and only simply relies on, the two class supportings arranged at body cavity are mobile, and a class is the supporting plate adopting sliding bearing, and another kind of is adopt multi-point support, dot point has flip sleeve, also has the support roller of rolling ... Deng polytype.The deficiency that this structure exists is that can not ensure that plate center and valve body center match, plate is when making Linear-moving, serious departs from vertical center line, causes nut and screw mandrel that plate rigidly fixes, or screw mandrel and nut, their screw-driven moves matching gap and is suppressed strength, produces resistance.The product of this structure, the dust removal by ventilation pipe-line system be used under negative pressure operating mode is all right.
Cause push-pull valve opening and closing dumb to solve this resistance, suppress the problem of strength, the way having human factor error to point out is, increases the gap between plate and valve body, and increase gap and cause interior leakage or outer leakage quantity to increase, system air leakage rate also increases thereupon.Also have more seriously, and the gap due to them becomes large, and the binding occurrence that plate center and valve body center can be caused to match increases, and the increase of amount of restraint causes screw rod transmission, and their screw-driven moves matching gap and is suffocated more serious, produces larger resistance.This increase gap causes amount of restraint > screw-driven to move the product of matching gap, and the dust removal by ventilation pipe-line system be used under negative pressure operating mode also can manage it, but interior leakage increases, and adds unnecessary operating cost.
This increase gap causes amount of restraint > screw-driven to move the product of matching gap, under malleation or positive/negative-pressure replace operating mode, as being used in the systems such as dust removal by ventilation, the deashing of sulfur removal technology feed bin, pneumatic defeated ash, inside leak outside and can increase further, screw rod transmission suppresses strength, the resistance produced increases more, and most cases is that push-pull valve is suffocated, being suffered from by paralysis of loss of function.
In order to solve the serious problem that to leak outside under malleation operating mode, someone proposes to set up soft seal, soft seal is fixed on the square frame of body cavity, also there is employing three limit on some employing four limits, the soft seal rubber knife-edge design on three limits or four limits is non-adjustable, seals together with tightly newly establishing with the single or double note of plate.The sealing effect of the soft seal rubber edge of a knife and the tight note of plate at work, the effect manifested in short time is all right, but cannot continue, its reason is: effectively solve the defect that plate center and valve body center match, the sealing surface of the rubber edge of a knife and plate is caused to misfit, plate horizontal plane fluctuates, and the sealing surface of tight note leaks out in floating, and causes flour dust overflow.
Summary of the invention,
The object of this invention is to provide a kind of two rod guide formula hand operated gate valve, especially overcome the deficiency that the plate center of prior art and valve body center do not match, ensure that screw rod transmission moves matching gap and do not suppress strength, resistance is little to go slick.
The object of the invention is to be achieved through the following technical solutions, a kind of two rod guide formula hand operated gate valve, it comprises: the compositions such as valve body, two rod guide, interior sealing, end seals, plate and transmission device.
The two rod guide formula hand operated gate valve of one provided by the invention, is characterized in that: between valve body and plate, set up two rod guide, and two rod guide is by double threaded screw, and sliding sleeve and two nuts form.Wherein there is a nut-welding to be fixed on valve body one end, hole at the other end of valve body coaxial line.Double threaded screw is penetrated by valve body apertura lateralis, the nut screwing clamping penetrating sliding sleeve simultaneously Yu be welded and fixed, then by locked for another nut.
The sliding sleeve of a kind of pair of rod guide formula hand operated gate valve provided by the invention, is fixedly connected with plate, and sliding sleeve is through in two rod guide and slidably divides a word with a hyphen at the end of a line.
The parallelism of two rod guide of a kind of pair of rod guide formula hand operated gate valve provided by the invention, levelness, vertical center line and valve body are in the manufacture and installation, accomplish that error is very little than being easier to, this error is less, the degree matched to plate vertical center line and valve body vertical center line is more close, more less close to error amount, also binding occurrence can be called, the margin of error > screw rod transmission of binding occurrence moves matching gap and just produces very large resistance, suppresses very much the movable flashboard of strength effort.The margin of error≤the screw rod transmission of binding occurrence moves matching gap, and resistance is just very little, does not suppress the light movable flashboard of strength.
The interior sealing of a kind of pair of rod guide formula Manual flashboard provided by the invention, on three or four limits of body cavity wallboard, welds 60 ° and connects steel plate, connect steel plate by Bolt Connection rubber plate, the rubber plate edge of a knife is close on plate face, and in valve body chamber, stop flour dust overflow, soft seal is non-adjustable.At work, adopt two rod guide, the problem that effective solution plate center and valve body center match, plate guides the dynamic value of float downward small at sliding sleeve, and the sealing surface of tight note does not leak out in floating, and dust is not excessive
The valve body end seals of a kind of pair of rod guide formula hand operated gate valve provided by the invention, valve body termination wall bores oval nibs, and by Bolt Connection 90 ° of rubber strip templates, outside valve body chamber, stop flour dust overflow, soft seal is adjustable.At work, adopt two rod guide, the problem that effective solution plate center and valve body center match, plate guides the dynamic value of float downward small at sliding sleeve, and the sealing surface of tight note does not leak out, and dust is not excessive
A kind of pair of rod guide formula hand operated gate valve provided by the invention realizes like this, by hand wheel rotating screw mandrel, plate makes Linear-moving along two rod guide in valve body, the parallelism of two rod guide of Linear-moving structure, levelness, vertical center line and valve body are accomplished to match in the manufacture and installation, error amount is very little, the sliding sleeve connecting plate also can control smaller value with two rod guide glade plane space, ensure that plate center and valve body center match, plate is when making Linear-moving, do not depart from vertical center line, plate rigidly fixes nut and screw mandrel, or screw mandrel and nut, strength is not suppressed when their screw rod transmission moves matching gap >=binding occurrence, resistance is little to go slick.Also has this Linear-moving structure, effectively can stop and leak to malleation flour dust overflow or negative pressure, the interior sealing of setting up, the interference that end seals does not have plate levelness to fluctuate, the rubber plate edge of a knife is close on plate face, in valve body (1) chamber, one soft seal is respectively set up in valve body (1) termination, prevents flour dust overflow.
Compared with the prior art: prevent interior leakage to leak outside, reduce operating cost, environment is improved.The resistance that goes slick is little, picks up to repair and safeguards simply.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments mode, the present invention is done to the explanation of further detail.
Wherein:
Fig. 1 is two rod guide formula hand operated gate valve plan views
Fig. 2 is two rod guide formula hand operated gate valve left views
Fig. 3 is two rod guide formula hand operated gate valve plan views
Fig. 4 is two rod guide formula hand operated gate valve partial enlarged drawings
In figure, sealing in 1 valve body, 2 sliding sleeves, the 3 pairs of rod guide, 4 end seals, 5 nuts, 6 screw mandrels, 7 handwheels, 8,9 plates.
Embodiment
The present invention such as Fig. 1 is two rod guide formula hand operated gate valve plan views, if Fig. 2 is left view, if Fig. 3 is for shown in plan view, it is characterized in that: by transmission device handwheel (7) rotary screw rod (6), plate (9) termination is welded with sliding sleeve (2), guided by sliding sleeve (2), in valve body (1), Linear-moving is made along two rod guide (3) by nut (5), the parallelism of two rod guide (3) of Linear-moving structure, levelness, vertical center line and valve body (1) vertical center line are accomplished to match, plate (9) is when mobile, do not depart from the error amount of valve body (1) vertical center line, namely binding occurrence reach≤screw rod transmission moves matching gap and just ensure that and do not suppress strength, resistance is little, go slick.Also have two rod guide of Linear-moving structure, do not depart from except longitudinal center except as guiding, also have when closing, the interior sealing (8) of setting up at valve body (1) inner chamber, the termination rubber seal (4) of setting up in valve body (1) termination, constitute the soft seal that two roads are different, effectively prevent and leak to malleation flour dust overflow or negative pressure, improve tightness.
The present invention is if Fig. 1 is for two rod guide formula hand operated gate valve is for shown in plan view, it is characterized in that: between valve body (1) and plate (9), set up two rod guide (3), two rod guide (3) is by double threaded screw, and sliding sleeve (2) and two nuts form.Wherein there is a nut-welding to be fixed on valve body (1) one end, hole at the other end of valve body (1) coaxial line.Double threaded screw is penetrated by valve body (1) apertura lateralis, the nut screwing clamping penetrating sliding sleeve (2) simultaneously Yu be welded and fixed, then by locked for another nut.The parallelism of two rod guide (3), levelness, vertical center line and valve body (1) are in the manufacture and installation, except double threaded screw, sliding sleeve (2) outward, other need not fine finishing be easier to accomplish that error is very little, and the less degree matched to plate (9) and valve body (1) vertical center line of error is more close.
The present invention is if Fig. 1 is for shown in two rod guide formula hand operated gate valve plan view, it is characterized in that: interior sealing (8), on three or four limits of valve body (1) inner chamber wallboard, weld 60 ° and connect steel plate, connect steel plate by Bolt Connection rubber plate, the rubber plate edge of a knife is close on plate (9) face, and in valve body (1) chamber, stop flour dust overflow, soft seal is non-adjustable.At work, adopt two rod guide (3), the problem that effective solution plate (9) center and valve body (1) center match, plate (9) guides the dynamic value of float downward small at sliding sleeve (2), the sealing surface of tight note does not leak out in floating, and dust is not excessive.
The present invention is if Fig. 1 is for shown in two rod guide formula hand operated gate valve partial enlarged drawing, it is characterized in that: end seals (4), valve body (1) termination wall bores oval nibs, by Bolt Connection 90 ° of rubber strip templates, outside valve body (1) chamber, stop flour dust overflow, soft seal is adjustable.
Claims (5)
1. a two rod guide formula hand operated gate valve, by valve body (1), sliding sleeve (2), two rod guide (3), end seals (4), interior sealing (8), plate (9) and transmission device composition, it is characterized in that: between valve body (1) and plate (9), set up two rod guide (3), plate (9) termination is welded with sliding sleeve (2), sliding sleeve (2) penetrates in two rod guide (3), by handwheel (7) rotary screw rod (6) of transmission device, plate (9) makes Linear-moving by nut (5) along two rod guide (3) in valve body (1), plate (9) is when sliding sleeve (2) guides mobile, sliding sleeve (2) is in the upper slip of two rod guide (3), the parallelism of two bar, levelness, vertical center line, the requirement accomplishing with valve body (1) vertical center line to match can be met, do not depart from the error amount of valve body (1) vertical center line, namely binding occurrence reach≤screw rod transmission moves matching gap, ensure that and do not suppress strength, resistance is little, go slick.
2. a Ju according to claim 1 pair of rod guide formula hand operated gate valve, it is characterized in that: described two rod guide (3) are when making Linear-moving, one is do not depart from longitudinal center as guiding, two be close time, set up interior sealing (8) at valve body (1) inner chamber, set up termination rubber seal (4) in valve body (1) termination, constitute the soft seal that two roads are different, effectively prevent and leak from malleation flour dust overflow or negative pressure, improve tightness.
3. a Ju according to claim 1 pair of rod guide formula hand operated gate valve, it is characterized in that: described two rod guide (3) are by double threaded screw, nut and sliding sleeve (2) composition, wherein there is a nut-welding in valve body (1) one end, hole at the other end of valve body (1) coaxial line, double threaded screw is penetrated by valve body (1) apertura lateralis, with the nut screwing clamping welded, then by locked for another nut, penetrate the sliding sleeve (2) of two rod guide (3), plate (9) termination is welded as a whole, in their parallelism of valve body (1) inner chamber, levelness, vertical center line and valve body (1) vertical center line match.
4. a Ju according to claim 2 pair of rod guide formula hand operated gate valve, it is characterized in that: described interior sealing (8), on three or four limits of valve body (1) inner chamber wallboard, weld 60 ° and connect steel plate, connect steel plate by Bolt Connection rubber plate, the rubber plate edge of a knife is close on plate (9) face, due to the interference that the plate (9) of Linear-moving structure does not have level to fluctuate, effectively can tackle flour dust overflow in valve body (1) chamber, this soft seal is non-adjustable.
5. a Ju according to claim 2 pair of rod guide formula hand operated gate valve, it is characterized in that: described end seals (4), the termination wall of valve body (1) bores oval nibs, all the time be adjacent to plate (9) is in 90 ° by Bolt Connection end seals (4), because the plate (9) of Linear-moving structure is not by the interference of level fluctuation, effectively flour dust overflow can be stoped, when end seals (4) wearing and tearing are by oval pass adjustment in valve body (1) termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520307958.5U CN204900881U (en) | 2015-05-12 | 2015-05-12 | Guide tracked manual push -pull valve of two poles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520307958.5U CN204900881U (en) | 2015-05-12 | 2015-05-12 | Guide tracked manual push -pull valve of two poles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900881U true CN204900881U (en) | 2015-12-23 |
Family
ID=54923058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520307958.5U Active CN204900881U (en) | 2015-05-12 | 2015-05-12 | Guide tracked manual push -pull valve of two poles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775410A (en) * | 2018-09-10 | 2018-11-09 | 佛山市骏广机械有限公司 | Gate valve |
-
2015
- 2015-05-12 CN CN201520307958.5U patent/CN204900881U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775410A (en) * | 2018-09-10 | 2018-11-09 | 佛山市骏广机械有限公司 | Gate valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204004485U (en) | Mud shunt controller | |
| CN204900881U (en) | Guide tracked manual push -pull valve of two poles | |
| CN204628570U (en) | Multi-layer sealed Multifunctional stop valve | |
| CN204164444U (en) | Pressurized-water reactor nuclear power plant nuclear island reduction valve | |
| CN204647370U (en) | The guide tracked push-pull valve of a kind of angle-style | |
| CN207714280U (en) | A kind of flood discharge device of water level control | |
| CN203730785U (en) | Plate sealing dual-eccentric flange flexible sealing butterfly valve | |
| CN204694409U (en) | PE ball valve air tightness test machine | |
| CN205136730U (en) | Three eccentric two -way all -metals butterfly valve sealed firmly | |
| CN204202827U (en) | The air tight test device of copper cooling wall bellows expansion joint | |
| CN208968748U (en) | A kind of airtight inspection sealing device of 90 ° of elbows of heat-resisting alloy | |
| CN206001006U (en) | A kind of medium-speed pulverizer tie-rod sealing structure | |
| CN211368619U (en) | Sliding seal gate for hydraulic engineering | |
| CN207673881U (en) | A kind of bolted bonnet (BB) forged steel split Wedge Gate Valves | |
| CN209557683U (en) | Bi-direction zero-leakage three eccentric metal sealed butterfly valve | |
| CN105421299A (en) | Sluice with hydraulic sealing function and using method of sluice | |
| CN205841818U (en) | A kind of stainless steel sluice valve | |
| CN207660926U (en) | Roll-bending cylinder on a kind of milling train | |
| CN201747945U (en) | Double-valve-seat two-way metal hard-sealing butterfly valve | |
| CN206572029U (en) | Flange form damping check valve | |
| CN204025726U (en) | A kind of seal arrangement of push-pull valve | |
| CN206246814U (en) | A kind of high pressure Wedge type double gate board gate valve | |
| CN220133011U (en) | Building seepage prevention structure based on water supply and drainage engineering | |
| CN217502641U (en) | Low resistance canned type push-pull valve | |
| CN218818276U (en) | Valve gate structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |