CN206130110U

CN206130110U - Dual check valve

Info

Publication number: CN206130110U
Application number: CN201621171867.4U
Authority: CN
Inventors: 戴义明; 戴京
Original assignee: JIANGSU TENGLONG PETROCHEMICAL MACHINERY Co Ltd
Current assignee: JIANGSU TENGLONG PETROCHEMICAL MACHINERY Co Ltd
Priority date: 2016-10-26
Filing date: 2016-10-26
Publication date: 2017-04-26
Anticipated expiration: 2026-10-26

Abstract

The utility model discloses a dual check valve, include the valve body, advance the oil pipe way and go out the oil pipe way, the lower surface mounting of non return case has the slide bar, the non return case links to each other with the slide bar cooperation, the fixed block is installed on the top of slide bar, the slide bar is installed on the top of fixed block, into water case is installed on the top of elasticity piece, it all installs the second slide rail to intake the left and right sides of case. This dual check valve, in can stimulateeing out the through -hole on the case of intaking the second slide rail through pull rod pulling arm -tie, through slide bar and first slide rail sliding connection, it can stimulate the slide bar to drive the slide bar through the elasticity piece, thereby there is certain gap in the bottom of non return case, the incasement thereby fluid is intake, on carrying the slide bar through the through -hole of the bottom of the case portion of intaking, the bottom of non return case is flowed in through the second through -hole, and then carry away, can reach double sealing's effect, the check valve receives the phenomenon of high -pressure large -traffic rivers backward flow.

Description

A kind of Double non-return valve

Technical field

The utility model is related to check-valves technical field, specially a kind of Double non-return valve.

Background technology

Valve is returned also known as check (non-return) valve, check valve or non-return valve, its effect be prevent medium directed flow in pipeline and will not The function of refluence, the firm formula check-valves in oil field is a kind of conventional valve class device, and its principle is by the strength of media flow Realize opening and closing, to prevent the refluence of medium, oil field to be mainly used on the pipeline of medium one-way flow with firm formula check-valves, only permitted Perhaps medium flows to a direction, such as patent of Patent No. 201420422000.6, including torsion spring, bearing pin, valve seat, spiral shell Mother, pressing plate, blocking, sealing ring, flap, bolt, valve body composition, although ensure that the reliability of reverse sealing, but in high pressure Under big flow impact, often there is sealing ring, pressing plate retaining mechanism and separate loose, seepage, the accident of polluted source.

Utility model content

The purpose of this utility model is to provide a kind of Double non-return valve, to solve above-mentioned background technology in propose ask Topic.

For achieving the above object, the utility model provides following technical scheme：A kind of Double non-return valve, including valve body, enter Oil-piping and flowline, the left and right sides of the valve body is installed with respectively inflow pipeline and flowline, the valve body Inner chamber bottom valve seat is installed, check device is installed on the inside of the valve seat, the check device includes non-return case, described The bottom of non-return vanning is provided with gag lever post, and the lower surface of the non-return case is provided with slide bar, and the non-return case coordinates with slide bar It is connected, the top of the slide bar is provided with fixed block, and the top of the fixed block is provided with sliding bar, the left and right of the sliding bar Both sides are mounted on the first slide rail, and the sliding bar is slidably connected with the first slide rail, the upper surface left and right sides of the sliding bar Be equipped with the second through hole, the top dead center position of the sliding bar is provided with elastomer block, the top of the elastomer block be provided with into Water tank, the left and right sides of the inlet water tank is mounted on the second slide rail, and the inlet water tank is slidably connected with the second slide rail, it is described enter The left surface of water tank and lower surface are equipped with through hole, and the top of the inlet water tank is provided with arm-tie, the top peace of the arm-tie Equipped with pull lever, the pull lever runs through valve body, and the top of the pull lever is provided with handwheel, and the top of the valve body is provided with Stabilising arrangement, the stabilising arrangement includes sliding panel, and the sliding panel coordinates with pull lever and is connected, the left and right two of the sliding panel Side is mounted on steadying plate, and screw rod is provided with the outer wall of the steadying plate, and the steadying plate is connected with screw flight, the spiral shell Fixed plate is installed on the inside of bar.

Preferably, matrix reinforcing bar is socketed with the outer wall of the screw rod, the screw rod is connected with matrix reinforcing bar screw thread, The outside of the matrix reinforcing bar is connected with steadying plate.

Preferably, the inner chamber left and right sides of the valve body is mounted on reinforcement block, and the reinforcement block coordinates phase with pull lever Even.

Preferably, it is enclosed with flexible boot on the outer wall of the handwheel.

Preferably, the elastomer block is provided with rubber slab with the junction of inlet water tank.

Compared with prior art, the beneficial effects of the utility model are：The Double non-return valve, can band by pulling handwheel Dynamic pull lever is pulled up, and pulls arm-tie the through hole on inlet water tank can be pulled out in the second slide rail by pull lever, is passed through Sliding bar is slidably connected with the first slide rail, drives sliding bar slide bar can be pulled by elastomer block, so as to non-return case Be present certain gap in bottom, so as to fluid is entered in inlet water tank, be transported on sliding bar by the through hole of inlet water tank bottom, lead to Cross the second through hole and flow into the bottom of non-return case, and then transfer out, the effect of dual-seal can be reached, check-valves is big by high pressure The phenomenon of flow current backflow, effective anti-return, when check device is opened or closed, by screw rod and steadying plate screw thread phase Even, twisting screw rod can drive fixed plate to operate to pull lever direction, and pull lever can be fixed by fixed plate, prevent Pull lever is moved, and strengthens overall stability.

Description of the drawings

Fig. 1 is the utility model structural representation；

Fig. 2 is check device structural representation of the present utility model.

In figure：1st, valve body, 2, inflow pipeline, 3, flowline, 4, stabilising arrangement, 401, sliding panel, 402, matrix reinforces Bar, 403, steadying plate, 404, screw rod, 405, fixed plate, 5, handwheel, 6, check device, 601, arm-tie, the 602, first slide rail, 603rd, elastomer block, 604, fixed block, 605, gag lever post, 606, slide bar, 607, sliding bar, the 608, second through hole, 609, non-return case, 610th, rubber slab, the 611, second slide rail, 612, through hole, 613, inlet water tank, 7, flexible boot, 8, pull lever, 9, reinforcement block, 10, valve Seat.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of Double non-return valve, including valve body 1, oil-feed Pipeline 2 and flowline 3, the left and right sides of the valve body 1 is installed with respectively inflow pipeline 2 and flowline 3, the valve The inner chamber bottom of body 1 is provided with valve seat 10, and the inner side of the valve seat 10 is provided with check device 6, and the check device 6 is included only Case 609 is returned, the bottom of the non-return vanning 609 is provided with gag lever post 605, and the lower surface of the non-return case 609 is provided with slide bar 606, the non-return case 609 coordinates with slide bar 606 and is connected, and the top of the slide bar 606 is provided with fixed block 604, the fixation The top of block 604 is provided with sliding bar 607, and the left and right sides of the sliding bar 607 is mounted on the first slide rail 602, the cunning Lever 607 is slidably connected with the first slide rail 602, and the upper surface left and right sides of the sliding bar 607 is equipped with the second through hole 608, The top dead center position of the sliding bar 607 is provided with elastomer block 603, and the top of the elastomer block 603 is provided with inlet water tank 613, the elastomer block 603 is provided with rubber slab 610 with the junction of inlet water tank 613, and by rubber slab 610 resistance to compression can be strengthened Power, the left and right sides of the inlet water tank 613 is mounted on the second slide rail 611, and the inlet water tank 613 slides with the second slide rail 611 Connection, the left surface of the inlet water tank 613 and lower surface are equipped with through hole 612, and the top of the inlet water tank 613 is provided with drawing Plate 601, the top of the arm-tie 601 is provided with pull lever 8, and the pull lever 8 runs through valve body 1, can band by pulling handwheel 5 Dynamic pull lever 8 is pulled up, and pulls arm-tie 601 through hole 612 on inlet water tank 613 can be pulled out second by pull lever 8 In slide rail 611, it is slidably connected with the first slide rail 602 by sliding bar 607, drives the sliding bar 697 can be by elastomer block 603 Slide bar 606 pulls, and so as to the bottom of non-return case 609 has certain gap, so as to fluid is entered in inlet water tank 613, leads to The through hole 612 for crossing the bottom of inlet water tank 613 is transported on sliding bar 607, and by the second through hole 608 bottom of non-return case 609 is flowed into, And then transfer out, the inner chamber left and right sides of the valve body 1 is mounted on reinforcement block 9, and the reinforcement block 9 coordinates with pull lever 8 It is connected, the stability of pull lever 8 can be strengthened by reinforcement block 9, the top of the pull lever 8 is provided with handwheel 5, the handwheel Flexible boot 7 is enclosed with 5 outer wall, the top of the valve body 1 is provided with stabilising arrangement 4, and the stabilising arrangement 4 includes sliding panel 401, the sliding panel 401 coordinates with pull lever 8 and is connected, and the left and right sides of the sliding panel 401 is mounted on steadying plate 403, Screw rod 404 is installed, the steadying plate 403 is connected with the screw thread of screw rod 404, the screw rod 404 on the outer wall of the steadying plate 403 Outer wall on be socketed with matrix reinforcing bar 402, the screw rod 404 is connected with the screw thread of matrix reinforcing bar 402, the matrix reinforcing bar 402 outside is connected with steadying plate 403, and by matrix reinforcing bar 402 stability of screw rod 404, the screw rod 404 can be strengthened Inner side fixed plate 405 is installed, when check device 8 is opened or closed, be connected with the screw thread of steadying plate 402 by screw rod 404, Twisting screw rod 404 can drive fixed plate 405 to operate to the direction of pull lever 8, and pull lever 8 can be carried out by fixed plate 405 It is fixed, prevent pull lever 8 from moving, strengthen overall stability.

By pulling handwheel 5 pull lever 8 can be driven to pull up, can be water inlet by the pulling arm-tie 601 of pull lever 8 Through hole 612 on case 613 is pulled out in the second slide rail 611, is slidably connected with the first slide rail 602 by sliding bar 607, by bullet Property block 603 drive sliding bar 697 can slide bar 606 pull get up, so as to there is certain gap in the bottom of non-return case 609, So as to fluid is entered in inlet water tank 613, it is transported on sliding bar 607, by second by the through hole 612 of the bottom of inlet water tank 613 Through hole 608 flows into the bottom of non-return case 609, and then transfers out, and can reach the effect of dual-seal, and check-valves is big by high pressure The phenomenon of flow current backflow, effective anti-return, when check device 8 is opened or closed, by screw rod 404 and steadying plate 402 Screw thread is connected, and twisting screw rod 404 can drive fixed plate 405 to operate to the direction of pull lever 8, can be to drawing by fixed plate 405 Lever 8 is fixed, and prevents pull lever 8 from moving, and strengthens overall stability.

In description of the present utility model, it is to be understood that term " coaxial ", " bottom ", " one end ", " top ", " middle part ", " other end ", " on ", " side ", " top ", " interior ", " front portion ", " central authorities ", the orientation of the instruction such as " two ends " or position The relation of putting is, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplify description, and Be not indicate or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore It is not intended that to restriction of the present utility model.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " setting ", " connection ", " Gu Calmly ", the term such as " spinning " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral； Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with It is connection or the interaction relationship of two elements of two element internals, unless otherwise clearly restriction, for this area For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of Double non-return valve, including valve body（1）, inflow pipeline（2）And flowline（3）, the valve body（1）Left and right two Side is installed with respectively inflow pipeline（2）And flowline（3）, it is characterised in that：The valve body（1）Inner chamber bottom install There is valve seat（10）, the valve seat（10）Inner side check device is installed（6）, the check device（6）Including non-return case （609）, the non-return case（609）Bottom gag lever post is installed（605）, the non-return case（609）Lower surface cunning is installed Bar（606）, the non-return case（609）With slide bar（606）Coordinate and be connected, the slide bar（606）Top fixed block is installed （604）, the fixed block（604）Top sliding bar is installed（607）, the sliding bar（607）The left and right sides be respectively mounted There is the first slide rail（602）, the sliding bar（607）With the first slide rail（602）It is slidably connected, the sliding bar（607）Upper table The face left and right sides is equipped with the second through hole（608）, the sliding bar（607）Top dead center position elastomer block is installed（603）, The elastomer block（603）Top inlet water tank is installed（613）, the inlet water tank（613）The left and right sides be mounted on second Slide rail（611）, the inlet water tank（613）With the second slide rail（611）It is slidably connected, the inlet water tank（613）Left surface and Lower surface is equipped with through hole（612）, the inlet water tank（613）Top arm-tie is installed（601）, the arm-tie（601）Top End is provided with pull lever（8）, the pull lever（8）Through valve body（1）, the pull lever（8）Top handwheel is installed（5）, The valve body（1）Top stabilising arrangement is installed（4）, the stabilising arrangement（4）Including sliding panel（401）, the sliding panel （401）With pull lever（8）Coordinate and be connected, the sliding panel（401）The left and right sides be mounted on steadying plate（403）, it is described steady Fixed board（403）Outer wall on screw rod is installed（404）, the steadying plate（403）With screw rod（404）Screw thread is connected, the screw rod （404）Inner side fixed plate is installed（405）.

2. a kind of Double non-return valve according to claim 1, it is characterised in that：The screw rod（404）Outer wall on be socketed There is matrix reinforcing bar（402）, the screw rod（404）With matrix reinforcing bar（402）Screw thread is connected, the matrix reinforcing bar（402） Outside and steadying plate（403）It is connected.

3. a kind of Double non-return valve according to claim 1, it is characterised in that：The valve body（1）The inner chamber left and right sides It is mounted on reinforcement block（9）, the reinforcement block（9）With pull lever（8）Coordinate and be connected.

4. a kind of Double non-return valve according to claim 1, it is characterised in that：The handwheel（5）Outer wall on be enclosed with Flexible boot（7）.

5. a kind of Double non-return valve according to claim 1, it is characterised in that：The elastomer block（603）With inlet water tank （613）Junction rubber slab is installed（610）.