CN204756040U - Adjustable check valve - Google Patents
Adjustable check valve Download PDFInfo
- Publication number
- CN204756040U CN204756040U CN201520327424.9U CN201520327424U CN204756040U CN 204756040 U CN204756040 U CN 204756040U CN 201520327424 U CN201520327424 U CN 201520327424U CN 204756040 U CN204756040 U CN 204756040U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- valve
- sleeve
- safety check
- hole
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides an adjustable check valve, set up the valve body of valve gap including the top the valve body left and right sides is equipped with exhalant canal and inhalant canal respectively be equipped with disk seat, valve clack and connecting rod in the valve body, the corresponding setting with the disk seat of valve clack, the vertical upside that is fixed in the valve clack of connecting rod, be equipped with the screw thread through -hole on the valve gap screw thread through -hole threaded connection has the adjusting part, the adjusting part is including connecting regulation pole in the screw thread through -hole, fixing and adjusting pole upper end adjusting screw and fixing at the sleeve of adjusting the pole lower extreme, the connecting rod can slide from top to bottom in the sleeve still be connected with the spring between connecting rod and the sleeve. The beneficial effects of the utility model are that degree of opening is controllable and need not equally also can open above a constant pressure.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of adjustable safety check.
Background technique
Safety check is also known as one-way valve or reverse valve, its effect prevents the medium in pipeline from flowing backwards, open-shut device is opened voluntarily by media flow and strength or closes, the valve flow backwards to prevent medium is on safety check, safety check belongs to self-acting valve class, be mainly used on the pipeline of medium one-way flow, only allow medium to flow, to try to avert accidents to a direction.
The flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side, and when suction side pressure is lower than outlet side, flap is automatically closed in case fluid flows backwards under the effect of the factor such as fluid pressure difference or gravity own.
At present, safety check can only when opening more than when a constant pressure, but some special pipeline force value very little safety check just cannot be applied and needs to change stop valve etc., simultaneously the open degree of the larger safety check of pressure is larger and then cause flow also larger, open degree is uncontrollable just can not constant control fluid flow, therefore, also treat in improvement.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of adjustable safety check, and open degree is controlled and without the need to equally also opening more than a constant pressure.
The technical solution of the utility model is: a kind of adjustable safety check, comprise the valve body that top arranges valve gap, exhalant canal and intake tunnel is respectively equipped with in the described valve body left and right sides, valve seat is provided with in described valve body, flap and connecting rod, described flap and valve seat relative set, described connecting rod is vertically fixed on the upside of flap, described valve gap is provided with tapped through hole, described tapped through hole has been threaded adjusting part, described adjusting part comprises the adjustable lever be connected in tapped through hole, be fixed on adjustable lever upper end adjusting screw rod and the sleeve being fixed on adjustable lever lower end, described connecting rod can slide up and down in sleeve, also spring is connected with between described connecting rod and sleeve.
Further, described connecting rod top is provided with groove, and described lower spring end gos deep in groove.
Further, be provided with draw-in groove in the mouth inside edge, top towards flap of described valve seat, be provided with steel choma in draw-in groove, steel choma and valve seat are for removably connecting.
Further, the internal diameter of steel choma is identical with the internal diameter size of valve seat.
The advantage that the utility model has and good effect are:
1, by being provided with tapped through hole on valve gap, tapped through hole is connected with adjusting part, and by regulating the lifting of adjusting part realization to flap, and then control the fluid flow of adjustable safety check, structure is simple, easy to operate.
2, draw-in groove is provided with in the mouth inside edge, top towards flap of described valve seat, steel choma is provided with in draw-in groove, when steel choma suffers erosion damage, only need remove the steel choma of damage, change a new steel choma, adjustable safety check can continue to use, and adjustable safety check easy access described in the utility model, extends the working life of adjustable safety check.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure:
1, valve body 2, valve gap 3, exhalant canal
4, intake tunnel 5, valve seat 6, flap
7, connecting rod 8, tapped through hole 9, adjustable lever
10, adjusting screw rod 11, sleeve 12, spring
13, groove 14, draw-in groove 15, steel choma
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in the structural representation of Fig. 1 model utility, a kind of adjustable safety check, comprise the valve body 1 that top arranges valve gap 2, exhalant canal 3 and intake tunnel 4 is respectively equipped with in described valve body 1 left and right sides, valve seat 5 is provided with in described valve body 1, flap 6 and connecting rod 7, described flap 6 and valve seat 5 relative set, described connecting rod 7 is vertically fixed on the upside of flap 6, described valve gap 2 is provided with tapped through hole 8, to be threaded adjusting part at described tapped through hole 8, described adjusting part comprises the adjustable lever 9 be connected in tapped through hole 8, be fixed on adjustable lever 9 upper end adjusting screw rod 10 and the sleeve 11 being fixed on adjustable lever lower end, described connecting rod 7 can slide up and down in sleeve 11, spring 12 is also connected with between described connecting rod 7 and sleeve 11.Described connecting rod 7 top is provided with groove 13, and described spring 12 lower end is goed deep in groove 13.Be provided with draw-in groove 14 in the mouth inside edge, top towards flap 6 of described valve seat 5, be provided with steel choma 15 in draw-in groove 14, steel choma 15 and valve seat 5 are for removably connecting.The internal diameter of steel choma 15 is identical with the internal diameter size of valve seat 5.
The working procedure of this example: by adopting technique scheme, exhalant canal 3 and intake tunnel 4 in valve body 1, flowing medium to be entered in valve body 1 by intake tunnel 4 and is flowed out by exhalant canal 3, because connecting rod 7 can slide up and down in sleeve 11, spring 12 is also connected with between connecting rod 7 and sleeve 11, when exhalant canal 3 pressure is greater than intake tunnel 4 pressure, flap 6 is opened, adjustable safety check conducting, when this needs to carry out Flow-rate adjustment to adjustable safety check, because be provided with tapped through hole 8 on valve gap 2, the setting of adjusting part is connected with in tapped through hole 8, by rotating the adjusting screw rod 10 of adjusting part, the sleeve 11 of adjustable lever 9 lower end is moved up and down, and then will produce spacing to the lifting of flap 6, realize the control to flap 6 open degree, and then reach the effect controlling fluid flow.
Connecting rod 7 top is provided with groove 13, and spring 12 lower end is goed deep in groove 13, and when spring is under pressure contraction, groove 13 can carry out leading role to spring 12, ensures that connecting rod 7 slides stably in sleeve 11.This adjustable safety check achieves that open degree is controlled and without the need to equally also opening more than a constant pressure, adaptability widely.
Be provided with draw-in groove 14 in the mouth inside edge, top towards flap 6 of described valve seat 5, be provided with steel choma 15 in draw-in groove 14, steel choma 15 and valve seat 5 are for removably connecting.The internal diameter of steel choma 15 is identical with the internal diameter size of valve seat 5, when steel choma 15 suffers erosion damage, only need remove the steel choma 15 of damage, change a new steel choma 15, adjustable safety check can continue to use, adjustable safety check easy access described in the utility model, extends the working life of adjustable safety check, and cost-saving.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (4)
1. an adjustable safety check, comprise the valve body (1) that top arranges valve gap (2), it is characterized in that: be respectively equipped with exhalant canal (3) and intake tunnel (4) in described valve body (1) left and right sides, valve seat (5) is provided with in described valve body (1), flap (6) and connecting rod (7), described flap (6) and valve seat (5) relative set, described connecting rod (7) is vertically fixed on the upside of flap (6), described valve gap (2) is provided with tapped through hole (8), described tapped through hole (8) has been threaded adjusting part, described adjusting part comprises the adjustable lever (9) be connected in tapped through hole (8), be fixed on adjustable lever (9) upper end adjusting screw rod (10) and be fixed on the sleeve (11) of adjustable lever lower end, described connecting rod (7) can slide up and down in sleeve (11), spring (12) is also connected with between described connecting rod (7) and sleeve (11).
2. adjustable safety check according to claim 1, is characterized in that: described connecting rod (7) top is provided with groove (13), and described spring (12) lower end is goed deep in groove (13).
3. adjustable safety check according to claim 1, it is characterized in that: be provided with draw-in groove (14) at described valve seat (5) towards the mouth inside edge, top of flap (6), be provided with steel choma (15) in draw-in groove (14), steel choma (15) and valve seat (5) are for removably connecting.
4. adjustable safety check according to claim 3, is characterized in that: the internal diameter of steel choma (15) is identical with the internal diameter size of valve seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520327424.9U CN204756040U (en) | 2015-05-20 | 2015-05-20 | Adjustable check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520327424.9U CN204756040U (en) | 2015-05-20 | 2015-05-20 | Adjustable check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204756040U true CN204756040U (en) | 2015-11-11 |
Family
ID=54470747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520327424.9U Expired - Fee Related CN204756040U (en) | 2015-05-20 | 2015-05-20 | Adjustable check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204756040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864470A (en) * | 2016-05-27 | 2016-08-17 | 中国科学院武汉岩土力学研究所 | Adjustable dry and wet separation check valve for hydraulic tunnel engineering |
| CN114673812A (en) * | 2022-03-10 | 2022-06-28 | 上海迹冷制冷设备有限公司 | A condensing pressure regulating valve |
-
2015
- 2015-05-20 CN CN201520327424.9U patent/CN204756040U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864470A (en) * | 2016-05-27 | 2016-08-17 | 中国科学院武汉岩土力学研究所 | Adjustable dry and wet separation check valve for hydraulic tunnel engineering |
| CN105864470B (en) * | 2016-05-27 | 2018-09-14 | 中国科学院武汉岩土力学研究所 | Adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve |
| CN114673812A (en) * | 2022-03-10 | 2022-06-28 | 上海迹冷制冷设备有限公司 | A condensing pressure regulating 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160520 |