![]() Check valve
专利摘要:
A check valve is provided having a valve casing, at least one pivotable closure element and at least one movable control element connected with an operating rod which cooperates with said closure element. The operating rod extends transversely to the longitudinal axis of the valve casing and motion-translating coupling means are arranged between the operating rod and the closure element. 公开号:SU1369680A3 申请号:SU853883399 申请日:1985-04-23 公开日:1988-01-23 发明作者:Вессельс Люр;Тетцнер Йоханнес 申请人:Гестра Аг (Фирма); IPC主号:
专利说明:
U 9 // 5 5 d 13 2} 2 11 with 05 with C5 00 3 W S / l 1 The invention relates to the field of pipe fittings, in particular to non-return valves. The aim of the invention is to reduce the axial dimensions of the valve by placing the acting elements with pushers perpendicular to the axis of the valve. FIG. 1 shows a check valve with two external acting elements; in fig. 2 and 3 are embodiments of a check valve with two acting elements located inside the housing. The check valve includes a housing with inlet 2 and outlet 3. Channels and a saddle 4. In the inlet channel 2 of the housing 1 there is a diametral red 5, and in the output channel 3 of the housing 1 there are two locking elements 6 of the semi-circular fory installed in the jumper zone 5 rotation around two axes 7. In the housing 1 (Fig. 1) diametrically opposite to each other across the longitudinal axis 8 there are two chambers 9 with acting elements. Each acting element is made in the form of a stepped piston, a large step 10 of which is located inside said chamber 9, and a smaller step 11 passes through the wall of the housing 1 in the entrance ca-, acting elements made in 2. 2. A pusher 12 is connected to a smaller step 11. Both pushers 12 also pass transversely to the longitudinal axis 8 of the housing 1 and parallel to the seat A of the valve. One end of the pusher 12 is located in the zone remote from the rotary axis 7 of the locking element 6, and the other end in the zone close to the rotary axis 7 45 of the locking element 6 in the lintel 5 of the housing 1, which serves to guide it. On each pusher 12, before the web 5, there is a supporting surface in the form of a collar 13, and on each gQ of the locking element 6, the surface in contact with the supporting surface of the pusher 12 is made in the form of a protrusion 14, the protrusion 14 interacting with the end surface 15 of the collar 13 facing the impacting element. Between the surfaces of the chamber 9 and the stepped piston is formed pistons 18. Both pistons 18 are integrally formed with pushers 12, protruding "Qimi" on the side of lintel 5 of housing 1. At the end of each pusher 12 there is a shoulder 13, on which one side acts to return to the spring 19 located between the said shoulder 13 and a jumper 5, and on the other hand, a protrusion 14 of the locking element 6. Two pistons 18 located in the transverse bore 17 form two means for damping the movement of closing the locking elements 6. When the check valve is open and the medium is flowing, return springs 19 hold the pistons 18 in their working initial position. Each of the acting elements (Fig. 3) consists of a piston 18 placed in a cylindrical sleeve 20. These sleeves 20 are located in the inlet channel 2, one end of which is fastening pins 1369680 cavity squeeze. In the camera 9 install Lena thrust rings 16. In the forward flow of the medium in the direction of the arrow, both locking elements 6 are in the open position. The pre-pressure acting on both parts of the stepped piston keeps the stepped pistons in their working initial position, determined by the stop rings 16. When the direct flow is stopped, both locking elements 6 move to the closed position. On the part of their turning path, the protrusions 14 of the locking elements 6 interact with the end surface 15 of the collar 13. The damping medium located in the compression cavity resists parts of the stepped pistons. This resistance slows the movement of the locking elements and therefore their further movement towards closure occurs in a damped manner. When the direct flow is resumed, the locking elements 6 rotate around the axes 7, and the stepped pistons together with the pushers 12 return to their initial operating position. In the bridge 5 of the housing 1 (Fig. 2), there is a transverse opening 17 passing perpendicularly to the longitudinal axis 8 of the housing 1, in which the pistons 18 are installed on opposite sides. Both pistons 18 are integral with the pushers 12, protruding from the side lintels 5 of the housing 1. At the end of each pusher 12 there is a shoulder 13, which is acted upon by one side by a return spring 19 placed between the said shoulder 13 and lintel 5, and on the other hand by the protrusion 14 of the locking element 6. Two pistons 18 located in the transverse bore 17 form two means for damping the closing movement of the locking elements 6. When the check valve is open and the flow is flowing, return springs 19 hold the pistons 18 in their working initial position. Each of the acting elements (Fig. 3) consists of a piston 18 placed in a cylindrical sleeve 20. These sleeves 20 are located in the inlet channel 2, one end of which is fastening pins 21, bridges 5 installed in the transverse hole 17, and a piston 18 located on the other. The internal cavities 22 of the cylindrical bushings 20 through the transverse 17 and throttle 23 holes are connected to the inlet channel 2 of the housing 1. The pistons 18 are equipped with pushers 12. In the housing I the valves are made two diametrically opposite to each other and perpendicular to the longitudinal axis 8 of the valve of the bore 24. In each bore there is an end of the pusher 12 with the formation of a cavity 25 in which the pressure is lower than the pressure of the inlet la 2. For example, the specified cavity 25 is connected to the atmosphere around the valve body 1. When the check valve is open and the flow is flowing, the pistons 18 are kept in the initial working position due to the pressure difference between the cavities 22 and 25. Also, due to the pressure difference present in cavities 22 and 25, the pistons 18, together with the pushers 12, return to their initial operating position when resuming the forward flow. The closing of the check valve and the damping is 30 u and with the fact that The closing movement of its closure (Figs. 2 and 3) is carried out similarly to that described in Figs. one.
权利要求:
Claims (7) [1] Instead of a piston, the acting element may be replaced by a membrane, a bellows, or, for example, a friction element. Invention Formula 1. A backflow valve comprising a housing with inlet and outlet channels, a shutoff element mounted in the outlet channel, mounted rotatably around an axis, and an actuating element mounted with reciprocating motion and provided with a pusher mounted into the inlet channel of the valve body interacting with the locking element on the part of the turning path thereof, wherein the locking element has a surface in contact with the bearing surface of the pusher, characterized in that, in order to reduce axial dimensions, the pusher is located across the longitudinal axis of the valve body. 2. The valve according to claim 1, characterized in that the supporting surface [2] the elements are diametrically opposed to each other in the housing, and their followers are mounted with the possibility of interaction 35 VIA with a related locking element. 6. Valve according to claim 4, characterized in that a transverse section of the housing is made in the body lintel and in it there are acting elements on opposite sides, the tappets of which are installed so that they can interact with the locking elements. 45 7. Valve according to claim 6, characterized in that each of the ejecting elements consists of a piston and a cylindrical bushing installed at one end in the bridge body 50 3 at the other end there is a piston connected to the pusher, with bores having the end of the pusher in each of which are diametrically opposite sides. 55 with the formation of a cavity connected to the atmosphere. Priority points: 12.05.84 pp. 1-5 13.02.85 pp. 6-7 The pusher is made in the form of a collar, and the surface of the locking element in contact with the support surface of the pusher is made in the form of a protrusion. 3. A valve according to claim 2, characterized in that one end of the pusher is located in the zone, [3] remote from the axis of the locking element, and the other in an area close to the axis of the locking element, with the acting element located on the end of the pusher remote from the axis, and The collar is located at the other end of the pusher, while the protrusion of the locking element interacts with the end surface of the collar facing the impacting element. 4. Valve according to claim 1, characterized in that a diametrical jumper and a second locking element with [4] self acting. element and the pusher, and facing each other the ends of the two locking elements installed in the zone jumper can be rotated. [5] 5. The valve according to claim 4, wherein the elements are diametrically opposed to each other in the housing, and their tappets are installed with the possibility of interaction 35 VIA with a related locking element. 6. Valve according to claim 4, characterized in that a cross section is made in the crosspiece of the body and has acting elements on opposite sides, the pushers of which are installed so that they can interact with the locking elements. [6] 45 [7] 7. The valve according to claim 6, characterized in that each of the acting elements consists of a piston and a cylindrical sleeve installed at one end in the body lintel, 50 3 at the other end there is a piston associated with the pusher, with bores made in the housing with diametrically opposite sides, in each of which the end of the pusher is placed 55 with the formation of a cavity connected to the atmosphere. Priority points: 12.05.84 pp. 1-5 13.02.85 pp. 6-7 7 / / / I P I 2 J2 / 5/3 20 ZJ 7 ZS 22 W foe. / " G2
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同族专利:
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引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US627049A|1899-06-13|Combined relief and back pressure valve | US982400A|1908-08-14|1911-01-24|Thomas H Walker|Automatic valve.| US2027455A|1932-01-25|1936-01-14|Seibt Max|Check valve| US2578590A|1948-02-25|1951-12-11|Perrault Bros|Safety valve| US3098502A|1961-04-21|1963-07-23|Dominion Eng Works Ltd|Valve and dash-pot assembly| US3106220A|1961-09-13|1963-10-08|Atwood & Morrill Co Inc|Check valve, with dashpot| US3177894A|1962-02-28|1965-04-13|Frank Wheatley Pump & Valve Ma|Controlled action check valve| FR1337467A|1962-08-02|1963-09-13|Rateau Soc|Improvements to non-return valves| GB1062279A|1963-07-24|1967-03-22|Clement Ramsden|Improvements in non-return valves| US3425436A|1966-06-10|1969-02-04|Hudson Eng Co|Valve structure for self-priming pumps| US3664582A|1969-10-29|1972-05-23|Robertshaw Controls Co|Non-linear temperature responsive valve assemblies| IT979391B|1973-03-23|1974-09-30|Nuovo Pignone Spa|NON-RETURN VALVE| DE2335584A1|1973-07-13|1975-01-30|Reglerbau Herpertz Kg|NON-RETURN FLAP WITH LOW PRESSURE LOSS WITH SIMULTANEOUS DAMPING| US4196745A|1977-04-25|1980-04-08|Gustav F. Gerdts Kg|Flap valve| JPS566122B2|1976-09-17|1981-02-09| DE2933265A1|1979-08-16|1981-02-26|Kraftwerk Union Ag|DAMPING DEVICE FOR RETURN ARMATURES| GB2071205B|1980-03-10|1983-11-16|Gen Motors Ltd|Internal combustion engine air intake temperature control systems| US4445533A|1981-08-13|1984-05-01|Allegheny Valve Company|Air check valve assembly for powdered bulk product transport| US4443894A|1982-04-12|1984-04-24|Hemex, Inc.|Heart valve with dog-leg pivot|US6123528A|1998-04-06|2000-09-26|Scroll Technologies|Reed discharge valve for scroll compressors| CN1089876C|1998-05-22|2002-08-28|王陆军|Dual-axle hydraulic butterfly check valve closed slowly| US6264452B1|1999-12-15|2001-07-24|Scroll Technologies|Reinforcement pin for check valve| US7311740B2|2005-02-14|2007-12-25|Honeywell International, Inc.|Snap acting split flapper valve| US8439088B2|2010-05-19|2013-05-14|Ford Global Technologies, Llc|One-way valve for a fuel-tank filling conduit| US9241604B2|2013-01-14|2016-01-26|General Electric Company|Adjustable dishwasher conduit valve system|
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申请号 | 申请日 | 专利标题 DE19843417770|DE3417770C2|1984-05-12|1984-05-12| DE3504827A|DE3504827C2|1985-02-13|1985-02-13| 相关专利
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