CN203686268U - Self-flushing damping and abrasion-resistant screwing type check valve - Google Patents
Self-flushing damping and abrasion-resistant screwing type check valve Download PDFInfo
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- CN203686268U CN203686268U CN201420033716.7U CN201420033716U CN203686268U CN 203686268 U CN203686268 U CN 203686268U CN 201420033716 U CN201420033716 U CN 201420033716U CN 203686268 U CN203686268 U CN 203686268U
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- valve
- valve body
- damping
- spiral arm
- wear
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Abstract
The utility model relates to a self-flushing damping and abrasion-resistant screwing type check valve, and belongs to the technical field of control devices on medium pipelines. The self-flushing damping and abrasion-resistant screwing type check valve comprises a valve body, a valve cover arranged on the valve body, a valve shaft arranged at the inner upper end of the valve body and close to one end of a water inlet, a rotating arm fixedly connected to the valve shaft and a valve clack fixedly connected to the outer side of the rotating arm. A valve seat used for being sealed with the valve clack is arranged at the water inlet end of the valve body, the valve shaft penetrates through the valve body and extends out of the valve body, the part, extending out of the valve body, of the valve shaft is fixedly connected with the rotating arm, and a rotating arm traction device is fixed outside the valve body. An automatic damping device of the valve is simple in structure, low in manufacturing cost and capable of achieving reliable and adjustable damping without external devices, the water hammer problem is solved, and the advantages of blocking prevention is achieved; the rotating arm traction device prevents the valve clack mechanism from shaking due to hydraulic fluctuation, and therefore abrasion of the valve shaft is avoided.
Description
Technical field
The utility model belongs to the control gear technical field on medium pipeline, is specifically related to a kind of from rinsing damping and wear-resistant screw-lift type safety check.
Background technique
Screw-lift type safety check be a kind of the most common be also the safety check that Applicable scope is the widest, also be the most ancient safety check of a kind of crime simultaneously, apply very extensive, but there is following defect: 1, because the shake under waterpower fluctuation of flap mechanism, therefore valve shaft bears fatigue load for a long time, easily weares and teares, once valve shaft wearing and tearing, gently affect flap sealing, heavy separately valve do not send out completely and close and lost efficacy; 2, it is large that screw-lift type safety check opens and closes space, and the pass valve water hammer while therefore at every turn cutting out is very large, destroys pumping plant or pipeline.
Model utility content
The purpose of this utility model is exactly the defect for prior art, provides a kind of from rinsing damping and wear-resistant screw-lift type safety check.
The technical solution adopted in the utility model is: comprise valve body, be arranged on valve gap on valve body, be arranged on upper end in valve body near the valve shaft of water intake one end, be fixedly connected on pivoted arm on valve shaft, be fixedly connected on the flap in pivoted arm outside, described valve inleting water end be provided with for the valve seat of flap sealing, described valve shaft stretches out valve body outside through valve body, described valve shaft stretches out in the part outside valve body and is fixedly connected with spiral arm, and described valve body is fixed with spiral arm traction gear outward.
Further preferred structure, described spiral arm traction gear comprises set drive unit on the fixed plate of slideway set on the fixed plate that is fixedly connected on outside valve body, fixed plate and spiral arm top, between described spiral arm and slideway, is slidably connected.
Further preferred structure, described drive unit is electromagnet, described spiral arm is permeability magnetic material.
Further preferred structure, described electromagnet comprises near-end electromagnet and far-end electromagnet, and described near-end electromagnet is arranged on spiral arm top near valve shaft place, and described far-end electromagnet is arranged on spiral arm top away from valve shaft place.
Further preferred structure, described spiral arm is provided with slide block, between described spiral arm and slideway, is slidably connected by slide block.
In such scheme, in the time that valve is opened under hydraulic action, outside spiral arm is spin-up under valve shaft drives, spiral arm approaches electromagnet, wherein near-end electromagnet first produces suction near spiral arm (near-end battery magnet is near apart from spiral arm), auxiliary flap is opened, increase flap aperture, when flap aperture increases, the coaxial spiral arm of flap is during near far-end electromagnet, the suction of far-end electromagnet is in spiral arm, spiral arm is held by far-end electromagnet, the moment producing due to the suction of far-end electromagnet is larger, thereby therefore can well fix spiral arm and prevent the flap shake in valve, solve the problem that screw-lift type safety check valve shaft weares and teares because of shake.
Further preferred structure, the bottom near water intake one side on described valve body is provided with automatic damping device.
Further preferred structure, described automatic damping device comprises the opening that valve body bottom is offered, described open outer side is fixed with axle sleeve, in described axle sleeve, be provided with Returnning spring and piston, described piston and axle sleeve Spielpassung, Returnning spring is withstood in described piston the inner, and described piston outer end is stretched in the body cavity in valve body through opening.
Further preferred structure, valve seat is longer than in described flap bottom, and in the time that flap is closed, described piston outer end grows in the part of valve seat and contacts with flap bottom.
Further preferred structure, described valve body is provided with water channel controlling device, water channel controlling device comprises the side opening runner of offering on described valve body, described side opening runner one end is communicated with the piston cavity in axle sleeve, the other end of described side opening runner is communicated with the body cavity in valve body, is provided with and adjusts stream needle-valve in described side opening runner.
In such scheme, the Spielpassung between piston and axle sleeve, can be the fine channel of water inlet and backwater, and the benefit of this structure is between piston and axle sleeve almost without surface friction drag; Returnning spring can well play reset response; In the time of valve closing, damping produces simultaneously, and under the effect of damping, piston cavity produces high pressure water, and high pressure water forms from rinsing and ejects from the gap of axle sleeve and piston, realizes from rinsing.
Automatic damping device in the utility model, simple in structure, manufacture cost is very low, and without external device, just can realize reliable adjustable damping, has solved problem of water hammer, has anticlogging feature simultaneously; Spiral arm traction gear, by preventing the shake under waterpower fluctuation of flap mechanism, thereby has prevented the wearing and tearing of valve shaft.
Brief description of the drawings
Fig. 1 is the utility model external structure schematic diagram;
Fig. 2 the utility model internal structure schematic diagram;
Fig. 3 is the local enlarged diagram of automatic damping device.
In figure, 1-valve gap; 2-valve body; 3-flap; 4-valve shaft; 5-body cavity; 6-spiral arm; 7-spiral arm traction gear (7.1-fixed plate; 7.2-slideway; 7.3-near-end electromagnet; 7.4-far-end electromagnet); 8-automatic damping device (8.1-axle sleeve; 8.2-Returnning spring; 8.3-piston; 8.4-gap; 8.5-adjust and flow needle-valve; 8.6-side opening runner; 8.7-piston cavity); 9-valve seat; 10-pivoted arm.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form and limit the utility model.
As shown in Figure 1, the utility model comprises valve body 2, be arranged on valve gap 1 on valve body 2, be arranged on the interior upper end of valve body 2 near the valve shaft 4 of water intake one end, be fixedly connected on pivoted arm 10 on valve shaft 4, be fixedly connected on the flap 3 in pivoted arm 10 outsides, described valve body 2 feed-water ends are provided with the valve seat 9 for sealing with flap 3, described valve shaft 4 stretches out valve body 2 outsides through valve body 2, described valve shaft 4 stretches out in the part outside valve body 2 and is fixedly connected with spiral arm 6, outside described valve body 2, is fixed with spiral arm traction gear 7.Described spiral arm traction gear 7 comprises set drive unit on the fixed plate 7.1 of slideway 7.2 set on the fixed plate 7.1 that is fixedly connected on outside valve body 2, fixed plate 7.1 and spiral arm 6 tops, between described spiral arm 6 and slideway 7.2, is slidably connected.Described drive unit is electromagnet, described spiral arm 6 comprises near-end electromagnet 7.3 and far-end electromagnet 7.4 for electromagnet described in permeability magnetic material, described near-end electromagnet 7.3 is arranged on spiral arm 6 tops near valve shaft 4 places, and described far-end electromagnet 7.4 is arranged on spiral arm 6 tops away from valve shaft 4 places.Described spiral arm 6 is provided with slide block, between described spiral arm 6 and slideway 7.2, is slidably connected by slide block.
As shown in Figure 2 and Figure 3, on described valve body 2, the bottom near water intake one side is provided with automatic damping device 8.Described automatic damping device 8 comprises the opening that valve body 2 bottoms are offered, described open outer side is fixed with axle sleeve 8.1, in described axle 8.1 covers, be provided with Returnning spring 8.2 and piston 8.3, described piston 8.3 and axle sleeve 8.2 Spielpassung, Returnning spring 8.2 is withstood in described piston 8.3 the inners, described piston 8.3 outer ends are stretched in the body cavity 5 in valve body 2 through opening, valve seat 9 is longer than in described flap 3 bottoms, in the time that flap 3 is closed, described piston 8.3 outer ends grow in the part of valve seat 9 and contact with flap 3 bottoms.Described valve body 2 is provided with water channel controlling device, water channel controlling device comprises the side opening runner 8.6 of offering on described valve body 2, described side opening runner 8.6 one end are communicated with the piston cavity 8.7 in axle sleeve, the other end of described side opening runner 8.6 is communicated with the body cavity 5 in valve body 2, is provided with and adjusts stream needle-valve 8.5 in described side opening runner 8.6.
The utility model working principle is as follows: when valve body 2 water flowing, under hydraulic action, open, while two electromagnet and water pump link electricly; Flap 3 is opened, and spiral arm 6 is near electromagnet, and near-end electromagnet 7.3 first produces the auxiliary flap 3 of suction to spiral arm 6 and opens, and increases flap 3 apertures, reduces damage by water; When flap 3 is opened to while approaching far-end electromagnet 7.4, the suction that far-end electromagnet 7.4 produces holds spiral arm 6, and by fixing spiral arm 6, the larger torque that its suction produces acts on flap 3 by spiral arm 6, prevents the shake of flap 3.Meanwhile, when flap 3 is opened, automatic damping device 8 slowly resets for 8.2 times at Returnning spring, in piston cavity 8.7, slowly intakes by side opening runner 8.6 and 8.4 places, gap, in the time cutting off the water, the electromagnet dead electricity of synchronizeing with water pump, suction disappears, start to close non-return action at backwater effect lower Disc 3 simultaneously, in the time that flap 3 closes to 10% aperture, be that flap 3 bottoms are while touching piston 8.3 outer end, automatic damping device 8 is because Returnning spring 8.2 produces damping function, flap 3 slowly closings, thereby eliminate pass valve water hammer, simultaneously, flap 3 is pushed down piston 8.3 when moving in piston cavity, ejection the gap of high pressure water in piston cavity 8.7 between piston 8.3 and axle sleeve 8.1 8.4 and side opening runner 8.6, produce from rinsing, foreign material between cleaning piston 8.3 and axle sleeve 8.1 etc.Water channel when the adjustable high pressure water of tune stream needle-valve 8.5 in side opening runner 8.6 sprays, can control the speed that high pressure water sprays.
The content that this specification is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (9)
1. one kind is rinsed damping and wear-resistant screw-lift type safety check certainly, comprise valve body, be arranged on valve gap on valve body, be arranged on upper end in valve body near the valve shaft of water intake one end, be fixedly connected on pivoted arm on valve shaft, be fixedly connected on the flap in pivoted arm outside, described valve inleting water end be provided with for the valve seat of flap sealing, described valve shaft stretches out valve body outside through valve body, it is characterized in that: described valve shaft stretches out in the part outside valve body and is fixedly connected with spiral arm, and described valve body is fixed with spiral arm traction gear outward.
2. according to claim 1 from rinsing damping and wear-resistant screw-lift type safety check, it is characterized in that: described spiral arm traction gear comprises set drive unit on the fixed plate of slideway set on the fixed plate that is fixedly connected on outside valve body, fixed plate and spiral arm top, between described spiral arm and slideway, is slidably connected.
3. damping and the wear-resistant screw-lift type safety check of certainly rinsing according to claim 2, is characterized in that: described drive unit is electromagnet, and described spiral arm is permeability magnetic material.
4. according to claim 3 from rinsing damping and wear-resistant screw-lift type safety check, it is characterized in that: described electromagnet comprises near-end electromagnet and far-end electromagnet, described near-end electromagnet is arranged on spiral arm top near valve shaft place, and described far-end electromagnet is arranged on spiral arm top away from valve shaft place.
5. damping and the wear-resistant screw-lift type safety check of certainly rinsing according to claim 2, is characterized in that: described spiral arm is provided with slide block, between described spiral arm and slideway, is slidably connected by slide block.
6. according to claim 1 from rinsing damping and wear-resistant screw-lift type safety check, it is characterized in that: the bottom near water intake one side on described valve body is provided with automatic damping device.
7. according to claim 6 from rinsing damping and wear-resistant screw-lift type safety check, it is characterized in that: described automatic damping device comprises the opening that valve body bottom is offered, described open outer side is fixed with axle sleeve, in described axle sleeve, be provided with Returnning spring and piston, described piston and axle sleeve Spielpassung, Returnning spring is withstood in described piston the inner, and described piston outer end is stretched in the body cavity in valve body through opening.
8. damping and the wear-resistant screw-lift type safety check of certainly rinsing according to claim 7, is characterized in that: valve seat is longer than in described flap bottom, and in the time that flap is closed, described piston outer end grows in the part of valve seat and contacts with flap bottom.
9. according to claim 7 from rinsing damping and wear-resistant screw-lift type safety check, it is characterized in that: described valve body is provided with water channel controlling device, water channel controlling device comprises the side opening runner of offering on described valve body, described side opening runner one end is communicated with the piston cavity in axle sleeve, the other end of described side opening runner is communicated with the body cavity in valve body, is provided with and adjusts stream needle-valve in described side opening runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033716.7U CN203686268U (en) | 2014-01-20 | 2014-01-20 | Self-flushing damping and abrasion-resistant screwing type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033716.7U CN203686268U (en) | 2014-01-20 | 2014-01-20 | Self-flushing damping and abrasion-resistant screwing type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686268U true CN203686268U (en) | 2014-07-02 |
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ID=51008168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420033716.7U Withdrawn - After Issue CN203686268U (en) | 2014-01-20 | 2014-01-20 | Self-flushing damping and abrasion-resistant screwing type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686268U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775691A (en) * | 2014-01-20 | 2014-05-07 | 武汉大禹阀门股份有限公司 | Self-washing damping and wear-resistant rotation type check valve |
| CN108953696A (en) * | 2018-08-13 | 2018-12-07 | 李琼 | A kind of slow closing swing check valve |
| CN109027393A (en) * | 2018-10-22 | 2018-12-18 | 哈尔滨工程大学 | Compressor anti-asthma quck-opening valve |
-
2014
- 2014-01-20 CN CN201420033716.7U patent/CN203686268U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775691A (en) * | 2014-01-20 | 2014-05-07 | 武汉大禹阀门股份有限公司 | Self-washing damping and wear-resistant rotation type check valve |
| CN103775691B (en) * | 2014-01-20 | 2016-04-20 | 武汉大禹阀门股份有限公司 | From flushing damping and wear-resistant screw-lift type safety check |
| CN108953696A (en) * | 2018-08-13 | 2018-12-07 | 李琼 | A kind of slow closing swing check valve |
| CN109027393A (en) * | 2018-10-22 | 2018-12-18 | 哈尔滨工程大学 | Compressor anti-asthma quck-opening valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |