CN107289157A - A kind of low-pressure drop check valve - Google Patents
A kind of low-pressure drop check valve Download PDFInfo
- Publication number
- CN107289157A CN107289157A CN201610198497.1A CN201610198497A CN107289157A CN 107289157 A CN107289157 A CN 107289157A CN 201610198497 A CN201610198497 A CN 201610198497A CN 107289157 A CN107289157 A CN 107289157A
- Authority
- CN
- China
- Prior art keywords
- flap
- damping
- valve
- hole
- bearing pin
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of low-pressure drop check valve, including tubular valve body, flap, one end of the flap upper surface is provided with lug, the lug is connected by horizontally disposed bearing pin with being arranged on the cradling piece of the body cavity upper wall, perpendicular where the vertical valve axis of the axis of the bearing pin, the body cavity is provided with flap seat, the flap seat outer rim is surround with the body cavity wall to be tightly connected, the middle part of the flap seat has a through hole, the flap rotates around the bearing pin, the through hole is covered or opens to seal, the planar tilt of the flap seat is in the horizontal plane where the valve axis, and perpendicular to the perpendicular where the valve axis, the entrance point of flap seat towards the valve body is tilted.Compared with prior art, the present invention has simple in construction, compact, the advantage of good seal performance, can quickly be opened when pressure difference is smaller before and after valve.
Description
Technical field
The invention belongs to valve arrangement technical field, and in particular to a kind of low-pressure drop check valve.
Background technology
Valve is widely used in industry and daily life, for flowing the fluid media (medium) in pipe-line system or stopping, at present, existing check-valves has two kinds of structures, one kind is swing type, one kind is lift, the Opening pressure that existing swing type structure valve needs is than larger, when pipeline pressure is unstable, it is possible that the situation that valve is not opened, drives the bearing pin that flap rotation is opened not on flap in addition, the radius of turn of flap is than larger, when flap is closed and valve seat produces huge shock, sealing surface is destroyed, the performance of valve is influenceed.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of valve opening stabilization, soft slow low-pressure drop check valve is closed.
The present invention solves the concrete technical scheme that is used of its technical problem：
A kind of low-pressure drop check valve, including tubular valve body, flap, one end of the flap upper surface is provided with lug, the lug is connected by horizontally disposed bearing pin with being arranged on the cradling piece of the body cavity upper wall, perpendicular where the vertical valve axis of the axis of the bearing pin, the body cavity is provided with flap seat, the flap seat outer rim is surround with the body cavity wall to be tightly connected, the middle part of the flap seat has a through hole, the flap rotates around the bearing pin, the through hole is covered or opens to seal, the planar tilt of the flap seat is in the horizontal plane where the valve axis, and perpendicular to the perpendicular where the valve axis, the entrance point of flap seat towards the valve body is tilted.
In the above-mentioned technical solutions, the inner chamber of valve body is provided with one towards the inclined flap seat of entrance point, the outer rim of flap seat and the internal chamber wall of valve body are tightly connected, and flap seat tool has a through hole, and the upper semisection of flap is connected by bearing pin with body cavity wall, enable flap using bearing pin as pivot, rotated in vertical plane, through hole is covered or open to seal, because the bearing pin connection of flap uses eccentric structure, in valve opening, flap can quickly revolve under the promotion of medium opens opening through hole.
Further, the lug is disposed in proximity at the flap upper end-face edge.
Further, the inlet and outlet of the valve body is respectively equipped with ring flange, and the ring flange upper end is provided with suspension ring.
Further, the perisporium of flap four, which is provided with seal groove, the seal groove, is provided with sealing ring.During closing, pressed on the inner walls of the via by sealing ring, good seal performance.
Further, the bearing pin two ends pass through the body cavity wall, and extend in the installation through-hole of the boss on the valve outer wall, provided with positioning bearing between the installation through-hole of the bearing pin and the boss, end cap is provided with the installation through-hole opening of the boss, the end cap is tightly connected with the boss.
Further, the flap seat lower end is provided with damping stopping means, the damping stopping means includes damping mounting seat, limited block, damping block, the damping mounting seat is set and flap seat lower end lower surface, the damping mounting seat upper surface is provided with damping block mounting hole, and the damping block is installed between the interior damping block mounting hole, its bottom and the damping block mounting hole bottom and is provided with damping spring.
In the above-mentioned technical solutions; by setting damping stopping means in the lower end of flap seat; upon closing, when flap is close to flap seat, damping block is propped up in flap lower surface first; due to being provided with damping spring between damping block and damping mounting seat; shock when closing is decreased to minimum by damping spring, makes flap slowly closing, reduces impact of the flap to flap seat; the damage of flap is effectively protected, the service life of valve is improved.
Compared with prior art, the present invention has simple in construction, compact, the advantage of good seal performance, can quickly be opened when pressure difference is smaller before and after valve.
Brief description of the drawings
Fig. 1 is a kind of low-pressure drop check valve open mode positive view provided in an embodiment of the present invention；
Fig. 2 is a kind of left sectional view of low-pressure drop check valve open mode provided in an embodiment of the present invention；
Fig. 3 is a kind of low-pressure drop check valve closed mode positive view provided in an embodiment of the present invention；
Fig. 4 is B-B partial views in Fig. 2；
Fig. 5 is A-A partial views in Fig. 3；
In figure, 1- valve bodies, 11- suspension ring, 12- boss, 2- flaps seat, 21- through holes, 3- flaps, 31- lugs, 4- bearing pins, 41- cradling pieces, 5- sealing rings, 6- damping detent mechanisms, 61- damping mounting seats, 62- damping blocks, 63- damping springs, 7- positioning bearings, 8- end caps.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to embodiment and referring to the drawings, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the scope of the present invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
Embodiment
As shown in Figures 1 to 5, the embodiments of the invention provide valve body 1, the flap 3 of a kind of low-pressure drop check valve, including tubulose, the inlet and outlet of valve body 1 is respectively equipped with ring flange, with connecting pipe or other valves, ring flange upper end is provided with suspension ring 11, and one end of the upper surface of flap 3 is provided with lug 31, and four perisporiums of flap 3 are provided with seal groove, sealing ring 5 is provided with the seal groove, in the present embodiment, it is preferred that lug 31 is disposed in proximity at the upper end-face edge of flap 3；Lug 31 is connected by horizontally disposed bearing pin 4 with the cradling piece 41 for the inner chamber upper wall for being arranged on valve body 1, perpendicular where the axis of the vertical valve body 1 of axis of bearing pin 4, in the present embodiment, the two ends of bearing pin 4 both pass through the internal chamber wall of the valve body 1, and extend in the installation through-hole of the boss 12 on the outer wall of valve body 1, provided with positioning bearing 7 between the installation through-hole of the two ends of bearing pin 4 and boss 12, end cap 8 is provided with the installation through-hole opening of boss 12, end cap 8 is tightly connected with boss 12, it is preferred that, sealing gasket is provided between end cap 8 and boss 12.
The inner chamber of valve body 1 is provided with flap seat 2, the outer rim of flap seat 2 surround with the internal chamber wall of valve body 1 and is tightly connected, the middle part of flap seat 2 has through hole 21, flap 3 rotates around bearing pin 4 in vertical plane, through hole 21 is covered or opens to seal, the planar tilt of flap seat 2 is in the horizontal plane where the axis of valve body 1, and perpendicular to the perpendicular where the axis of valve body 1, and the entrance point of flap seat 2 towards valve body 1 is tilted；In the present embodiment, the lower end of flap seat 2 is provided with damping stopping means 6, damping stopping means 6 includes damping mounting seat 61, limited block, damping block 62, the damping mounting seat 61 is arranged at the lower end lower surface of the flap seat 2, the upper surface for damping mounting seat 61 is provided with damping block mounting hole, and damping block 62 is provided with damping spring 63 between being installed on the bottom of the interior damping block mounting hole, its bottom and the damping block mounting hole.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the principle of the present invention, without being construed as limiting the invention.Therefore, any modification, equivalent substitution and improvements done without departing from the spirit and scope of the present invention etc., should be included in the scope of the protection.In addition, the whole that appended claims of the present invention are intended to fall into scope and border or this scope and the equivalents on border changes and modifications example.
Claims (6)
1. a kind of low-pressure drop check valve, it is characterized in that, including tubular valve body, flap, one end of the flap upper surface is provided with lug, the lug is connected by horizontally disposed bearing pin with being arranged on the cradling piece of the body cavity upper wall, perpendicular where the vertical valve axis of the axis of the bearing pin, the body cavity is provided with flap seat, the flap seat outer rim is surround with the body cavity wall to be tightly connected, the middle part of the flap seat has a through hole, the flap rotates around the bearing pin, the through hole is covered or opens to seal, the planar tilt of the flap seat is in the horizontal plane where the valve axis, and perpendicular to the perpendicular where the valve axis, the entrance point of flap seat towards the valve body is tilted.
2. a kind of low-pressure drop check valve according to claim 1, it is characterised in that the lug is disposed in proximity at the flap upper end-face edge.
3. a kind of low-pressure drop check valve according to claim 1, it is characterised in that the inlet and outlet of the valve body is respectively equipped with ring flange, the ring flange upper end is provided with suspension ring.
4. a kind of low-pressure drop check valve according to claim 1, it is characterised in that the perisporium of flap four, which is provided with seal groove, the seal groove, is provided with sealing ring.
5. a kind of low-pressure drop check valve according to claim any one of 1-4, it is characterized in that, the bearing pin two ends pass through the body cavity wall, and extend in the boss installation through-hole on the valve outer wall, provided with positioning bearing between the bearing pin and the boss installation through-hole, end cap is provided with the boss installation through-hole opening, the end cap is tightly connected with the boss.
6. a kind of low-pressure drop check valve according to claim 5, it is characterized in that, the flap seat lower end is provided with damping stopping means, the damping stopping means includes damping mounting seat, limited block, damping block, the damping mounting seat is set and flap seat lower end lower surface, the damping mounting seat upper surface is provided with damping block mounting hole, and the damping block is installed between the interior damping block mounting hole, its bottom and the damping block mounting hole bottom and is provided with damping spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198497.1A CN107289157A (en) | 2016-04-01 | 2016-04-01 | A kind of low-pressure drop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198497.1A CN107289157A (en) | 2016-04-01 | 2016-04-01 | A kind of low-pressure drop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107289157A true CN107289157A (en) | 2017-10-24 |
Family
ID=60087295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610198497.1A Pending CN107289157A (en) | 2016-04-01 | 2016-04-01 | A kind of low-pressure drop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107289157A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336283A (en) * | 2020-05-19 | 2020-06-26 | 烟台佳友电子机械科技有限公司 | Micro-pressure loss check valve |
| CN112303252A (en) * | 2020-10-27 | 2021-02-02 | 济南德创试验仪器有限公司 | Stop valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202274149U (en) * | 2011-08-09 | 2012-06-13 | 铜陵新特阀门有限责任公司 | Check valve |
| CN202708215U (en) * | 2012-05-22 | 2013-01-30 | 百强阀门集团有限公司 | Butterfly microresistance slow closing check valve |
| CN204592437U (en) * | 2015-03-24 | 2015-08-26 | 上海冠龙阀门机械有限公司 | A kind of inclined disc type buffer check valve |
| CN204756036U (en) * | 2015-05-22 | 2015-11-11 | 天津斯维克阀业有限公司 | A check valve |
-
2016
- 2016-04-01 CN CN201610198497.1A patent/CN107289157A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202274149U (en) * | 2011-08-09 | 2012-06-13 | 铜陵新特阀门有限责任公司 | Check valve |
| CN202708215U (en) * | 2012-05-22 | 2013-01-30 | 百强阀门集团有限公司 | Butterfly microresistance slow closing check valve |
| CN204592437U (en) * | 2015-03-24 | 2015-08-26 | 上海冠龙阀门机械有限公司 | A kind of inclined disc type buffer check valve |
| CN204756036U (en) * | 2015-05-22 | 2015-11-11 | 天津斯维克阀业有限公司 | A check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336283A (en) * | 2020-05-19 | 2020-06-26 | 烟台佳友电子机械科技有限公司 | Micro-pressure loss check valve |
| CN112303252A (en) * | 2020-10-27 | 2021-02-02 | 济南德创试验仪器有限公司 | Stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101622487B (en) | Rotatable wedge cartridge valve mechanism and method for assembly and disassembly | |
| CN107289157A (en) | A kind of low-pressure drop check valve | |
| CN107763255A (en) | Overturning type check valve, compressor and air conditioning equipment | |
| CN203051861U (en) | Piston type check valve | |
| CN105042123A (en) | Supercritical Y-shaped internally-hung hard self-sealing flap-turning check valve | |
| CN212004365U (en) | Small-caliber upper-mounted low-temperature floating ball valve | |
| CN202432032U (en) | Swing check valve | |
| CN205937950U (en) | Take monolith support's ball valve that valve rod blew off of preventing | |
| CN204878883U (en) | Energy -conserving check valve of diclinic lamella formula of turning on one's side | |
| CN103438250A (en) | Swing check valve | |
| CN203770748U (en) | Damping check valve | |
| CN207080618U (en) | A kind of non-maintaining hermetically sealed cut-out butterfly valve | |
| CN201281148Y (en) | Nuclear grade large caliber cast steel complete-circulation swing check valve | |
| CN106015660A (en) | Quick closing check valve | |
| CN202561109U (en) | V-shaped ball valve | |
| CN202302123U (en) | A high-temperature check valve | |
| CN205715832U (en) | Multi-functional self-operated type stop valve | |
| CN210240670U (en) | Assembled swing check valve | |
| CN205331514U (en) | Cast steel swing check valve's valve body | |
| CN207486138U (en) | A kind of tilt-disc check valve | |
| CN210372162U (en) | Check valve for conveying gaseous medium | |
| CN216200627U (en) | Adjusting butterfly valve | |
| CN210372029U (en) | Stop valve for conveying gaseous medium | |
| CN206668994U (en) | A kind of efficient sealed butterfly valve | |
| CN201110404Y (en) | High pressure suspending sealing inclined flap check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |
|
| RJ01 | Rejection of invention patent application after publication |