CN204985133U - Pressure release flange formula prefill valve in advance - Google Patents
Pressure release flange formula prefill valve in advance Download PDFInfo
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- CN204985133U CN204985133U CN201520747000.8U CN201520747000U CN204985133U CN 204985133 U CN204985133 U CN 204985133U CN 201520747000 U CN201520747000 U CN 201520747000U CN 204985133 U CN204985133 U CN 204985133U
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Abstract
The utility model relates to a pressure release flange formula prefill valve in advance, including the main valve body (1) and cap (2), cap (2) inside be equipped with piston (10), piston (10) below is equipped with pressure release type case in advance, pressure release type case includes cylinder (11) in advance, little check valve core (12) and end contrary dish (13), it is the circular cone dish to end contrary dish (13), the awl point department that one (11) fixed connection on the cylinder ends contrary dish (13), cylinder one (11) and outer circular conical surface be the heart together, the peripheral cover in one (11) upper portion on the cylinder is equipped with spring (14), the hole has been seted up to one (11) bottom on the cylinder, the hole below is equipped with little check valve core (12), little check valve core (12) comprise cylinder no. 2 and circular cone dish no. 2, two peripheral covers on the cylinder are equipped with spring two (15), the utility model discloses can reach the steadiness parameter of facility request, solve a segmentation and released shock of T side pipe way and the undulant unstable loud noise noise of following that the pressure caused.
Description
[technical field]
The utility model relates to liquid-filling valve technical field, specifically a kind of pre-pressure relief flange formula liquid-filling valve.
[background technique]
At present, existing flange-type liquid-filling valve mainly by main valve body, cap and be arranged at piston in main valve body and cap, antireverse valve spool two forms, its structure is as shown in Figure 1.According to current service condition, the flange-type liquid-filling valve of this structure mainly has the following disadvantages: because this flange-type liquid-filling valve is one-part form pressure relief, thus easily cause T side ducts to shake and fluctuate unstable with loud noise noise, the steadiness parameter of equipment requirement cannot be met.Therefore, if a kind of release hydraulic energy of sectional type, the flange-type liquid-filling valve of smooth fluctuations can be provided, will have very important significance.
[model utility content]
The purpose of this utility model is exactly will solve above-mentioned deficiency and provide a kind of pre-pressure relief flange formula liquid-filling valve, hydraulic energy can be discharged very steady, reach the steadiness parameter of equipment requirement, solve T side ducts concussion that one-part form release of pressure causes and fluctuation unstable with loud noise noise.
A kind of pre-pressure relief flange formula liquid-filling valve of design for achieving the above object, comprise main valve body 1 and cap 2, groove chamber 3 is provided with bottom described main valve body 1, concentric groove 1 is provided with above described groove chamber 3, non-return disc 1 is formed between described groove chamber 3 and groove 1, concentric through hole 1 is provided with directly over described groove 1, the bowl-shape type runner 7 be communicated with it is provided with above the side of described groove 1, described main valve body 1 side opening is provided with auxiliary hole 1, described auxiliary hole 1 is communicated with the auxiliary hole 29 in cap 2 sidewall, described auxiliary hole 29 is communicated with the blind hole on cap 2 cover plate, the below of described cap 2 blind internal bore is provided with piston 10, pre-pressure release type spool is provided with below described piston 10, described pre-pressure release type spool comprises cylindrical body 1, little antireverse valve spool 12 and return-stopping disc 13, described return-stopping disc 13 is Cone Disc, described cylindrical body 1 is fixedly connected on the cone tip part of return-stopping disc 13, the outer conical surface one of described return-stopping disc 13 contacts with non-return disc 1, described cylindrical body 1 is concentric with outer conical surface one, and with through hole 1 Spielpassung, described cylindrical body 1 upper end is connected with piston 10, described cylindrical body 1 top peripheral is arranged with spring 1, described cylindrical body 1 bottom offers endoporus, little antireverse valve spool 12 is provided with below described endoporus, described little antireverse valve spool 12 is made up of the cylindrical body two on top and the Cone Disc two of bottom, described cylindrical body two outer race is provided with spring 2 15, described return-stopping disc 13 bottom centre is provided with groove 2 16, the lower limb of described groove 2 16 forms non-return disc 2 17, the outer conical surface two of described Cone Disc two contacts with non-return disc 2 17, the through hole 2 18 with cylindrical body two Spielpassung is provided with above described groove 2 16, described through hole 2 18 top is provided with the groove 3 19 for supported spring 2 15, concentric groove 4 20 is provided with above described groove 3 19, described cylindrical body 1 bottom is placed in groove 4 20, the sidewall of described groove 2 16 is provided with little oilhole 21, described little oilhole 21 is connected with groove 1 and bowl-shape type runner 7.
The middle part of described main valve body 1 has been uniformly distributed circumferentially bolt hole 22, and described main valve body 1 is connected as one by bolt hole 22 and cap 2, is tightly connected between described main valve body 1 and cap 2 by seal ring 1.
The both sides up and down of described main valve body 1 are provided with seal groove, are placed with seal ring 2 24 in described seal groove.
The top of described cylindrical body 1 is provided with screw thread one and the hinge last 1 with axis perpendicular, spring is provided with by 1 below described hinge last 1, described spring is threaded onto on the screw thread one at cylindrical body 1 top by 1, described hinge last 1 is built-in with latch 1, and the upper end of described spring 1 is connected by 1 with spring.
The bottom outer radius of described cylindrical body 1 is provided with annular groove, and in described annular groove, press-in has jump ring 28, is connected bottom described cylindrical body 1 with between return-stopping disc 13 by jump ring 28.
The top of described cylindrical body two is provided with screw thread two and the hinge last 2 29 with axis perpendicular, spring is provided with by 2 30 below described hinge last 2 29, described spring is threaded onto on the screw thread two at cylindrical body two top by 2 30, described hinge last 2 29 is built-in with latch 2 31, and the upper end of described spring 2 15 is connected by 2 30 with spring.
The utility model compared with the existing technology, novel structure, simple, reasonable in design, by the pressure relief of script one section is redesigned, utilize the stroke difference of structure, first open the hydraulic energy release that the little opening of first paragraph does small flow high pressure, then open the exergonic control mode that second segment big uncork does large discharge low pressure, thus solve T side ducts concussion that one-part form release of pressure causes and fluctuation unstable with loud noise noise, also reach the steadiness parameter of equipment requirement; In addition, the utility model promotes piston by external guidance pressure PP and first promotes little antireverse valve spool, advances after reaching progressive error, then promotes return-stopping disc unlatching pressurize mouth, the release hydraulic energy of this kind of segmented is very steady, for client decreases Wai Jia rotation road and the control circuit of pre-release high pressure.
[accompanying drawing explanation]
Fig. 1 is existing structural representation;
Fig. 2 is the packing state schematic diagram of existing structure;
Fig. 3 is the unloading condition schematic diagram of existing structure;
Fig. 4 is structural representation of the present utility model;
Fig. 5 is pre-unloading condition schematic diagram of the present utility model;
Fig. 6 is main unloading condition schematic diagram of the present utility model;
Fig. 7 is the cross section structure schematic diagram one of main valve body in the utility model;
Fig. 8 is the cross section structure schematic diagram two of main valve body in the utility model;
Fig. 9 is the plan view of Fig. 7;
Figure 10 is the worm's eye view of Fig. 7;
In figure: 1, main valve body 2, cap 3, groove chamber 4, groove 1, non-return disc 1, through hole 1, bowl-shape type runner 8, auxiliary hole 1, auxiliary hole 2 10, piston 11, cylindrical body 1, little antireverse valve spool 13, return-stopping disc 14, spring 1, spring 2 16, groove 2 17, non-return disc 2 18, through hole 2 19, groove 3 20, groove 4 21, little oilhole 22, bolt hole 23, seal ring 1, seal ring 2 25, hinge last 1, spring is by 1, latch 1, jump ring 29, hinge last 2 30, spring is by 2 31, latch 2 32, bolt hole 2 33, sealing circular groove 34, bridge like position 35, middle bowl-shape position 36, plate valve position 37, bolt 38, antireverse valve spool 2 39, supporting surface 40, flange 1, flange two.
[embodiment]
Below in conjunction with accompanying drawing, following further illustrating is done to the utility model:
The utility model a kind ofly carrys out control valve inner carrier by external guidance pressure and promote and use the stroke difference of linkage structure first to open the little antireverse valve spool of first paragraph to do pre-pressure release, then open the control valve that second segment return-stopping disc does full release.Its structure comprises: main valve body 1 and cap 2, groove chamber 3 is provided with bottom main valve body 1, concentric groove 1 is provided with above groove chamber 3, non-return disc 1 is formed between groove chamber 3 and groove 1, concentric through hole 1 is provided with directly over groove 1, the bowl-shape type runner 7 be communicated with it is provided with above the side of groove 1, main valve body 1 side opening is provided with auxiliary hole 1, auxiliary hole 1 is communicated with the auxiliary hole 29 in cap 2 sidewall, auxiliary hole 29 is communicated with the blind hole on cap 2 cover plate, the below of cap 2 blind internal bore is provided with piston 10, pre-pressure release type spool is provided with below piston 10, pre-pressure release type spool comprises cylindrical body 1, little antireverse valve spool 12 and return-stopping disc 13, return-stopping disc 13 is Cone Disc, cylindrical body 1 is fixedly connected on the cone tip part of return-stopping disc 13, the outer conical surface one of return-stopping disc 13 contacts with non-return disc 1, cylindrical body 1 is concentric with outer conical surface one, and with through hole 1 Spielpassung, cylindrical body 1 upper end is connected with piston 10, cylindrical body 1 top peripheral is arranged with spring 1, cylindrical body 1 bottom offers endoporus, little antireverse valve spool 12 is provided with below endoporus, little antireverse valve spool 12 is made up of the cylindrical body two on top and the Cone Disc two of bottom, cylindrical body two outer race is provided with spring 2 15, return-stopping disc 13 bottom centre is provided with groove 2 16, the lower limb of groove 2 16 forms non-return disc 2 17, the outer conical surface two of Cone Disc two contacts with non-return disc 2 17, the through hole 2 18 with cylindrical body two Spielpassung is provided with above groove 2 16, through hole 2 18 top is provided with the groove 3 19 for supported spring 2 15, concentric groove 4 20 is provided with above groove 3 19, cylindrical body 1 bottom is placed in groove 4 20, the sidewall of groove 2 16 is provided with little oilhole 21, little oilhole 21 is connected with groove 1 and bowl-shape type runner 7.
Wherein, the middle part of main valve body 1 has been uniformly distributed circumferentially bolt hole 22, and main valve body 1 is connected as one by bolt hole 22 and cap 2, is tightly connected between main valve body 1 and cap 2 by seal ring 1; The both sides up and down of main valve body 1 are provided with seal groove, are placed with seal ring 2 24 in seal groove; The top of cylindrical body 1 is provided with screw thread one and the hinge last 1 with axis perpendicular, spring is provided with by 1 below hinge last 1, spring is threaded onto on the screw thread one at cylindrical body 1 top by 1, and hinge last 1 is built-in with latch 1, and the upper end of spring 1 is connected by 1 with spring.The bottom outer radius of cylindrical body 1 is provided with annular groove, and in annular groove, press-in has jump ring 28, is connected bottom cylindrical body 1 with between return-stopping disc 13 by jump ring 28; The top of cylindrical body two is provided with screw thread two and the hinge last 2 29 with axis perpendicular, spring is provided with by 2 30 below hinge last 2 29, spring is threaded onto on the screw thread two at cylindrical body two top by 2 30, and hinge last 2 29 is built-in with latch 2 31, and the upper end of spring 2 15 is connected by 2 30 with spring.
As shown in accompanying drawing 1 to accompanying drawing 3, it is the structural representation of existing flange-type liquid-filling valve.In this flange-type liquid-filling valve, main valve body can be divided into plate valve position 36, bridge like position 34 and middle bowl-shape position 35 3 part, is integrated in fact; Plate valve site boundary has distribute columns evenly bolt hole 2 32, for locking T side flange 1 and C side flange 2 41; Middle bowl bodies also has distribute columns evenly bolt hole 22, for locking cap; Having a groove chamber bottom plate valve position and up have a concentric grooves one again, is non-return disc one in the middle of both, and it is the hole that is slidably matched as off-load antireverse valve spool two that the concentric therewith above non-return circle one is processed with a through hole one; Up have a bowl-shape type runner at groove one, namely the bowl-shape position at center is the position of processing through hole one.Groove chamber is that P side is mounted in operating cylinder (pressurize side), bowl-shape type runner is that T side is mounted in tank side (fuel feeding side), both sides respectively establish seal groove 33 to place seal ring 2 24, ensure bolt T side flange one and C side flange two and main valve body three are locked after positive confinement; The round side of main valve body has an auxiliary hole one, towards center to the auxiliary hole two corresponding position vertical up out-of-plane again with cap, for external guidance pressure leads to the passage Pp of cap.Wherein, antireverse valve spool two is a Cone Disc, and cone tip part has a cylindrical body; Cone Disc has an outer conical surface contacted with non-return disc one, and cylindrical body is concentric with outer conical surface, and with through hole one Spielpassung, as sliding support; Top is provided with the hinge last one of screw thread and and axis perpendicular; After antireverse valve spool two and main valve body are in place, sequentially place spring one peripheral at cylindrical body, spring screws in cylindrical body screw thread to applicable position by one, latch one is put into hinge last one, guarantees that spring is subject to the position of firm.There is a blind hole piston one inside, can hold antireverse valve spool two, spring one, spring by these accessories, not produce interference; Put piston and cover cap again.Cap inside is provided with blind hole and coordinates with piston clearance, as sliding support; Be provided with auxiliary hole two corresponding with the auxiliary hole one of main valve body, and use seal ring one to reach sealing; Auxiliary hole connects two auxiliary holes and extends to above the endoporus at cap top, is the passage for an inverted L shape, exports from the top of blind hole; Cap circle edge has distribute columns evenly bolt hole, and cap and main valve body are locked by bolt.
In structure after the utility model improves, traditional antireverse valve spool two is designed to three parts again: cylindrical body one, little antireverse valve spool and return-stopping disc, forms pre-pressure release type spool.The top design of antireverse valve spool two is continued to use at cylindrical body one top, and same feature has cylindrical body and through hole as Spielpassung, as sliding support; Top is provided with the hinge last one of screw thread and and axis perpendicular; New feature is that bottom external diameter is provided with annular groove, and groove can pass through jump ring, and as the supporting surface 39 of jump ring; There is a blind hole in bottom centre, can hold little antireverse valve spool and accessory, has a side opening to lead to groove one as hydraulic oil turnover function.
Wherein, little antireverse valve spool is a Cone Disc, and cone tip part has a cylindrical body one; Cone Disc has an outer conical surface contacted with non-return disc two, and cylindrical body is concentric with outer conical surface, and with through hole two Spielpassung, as sliding support; Top is provided with the hinge last two of screw thread and and axis perpendicular; Little antireverse valve spool with main inverse coil be in place after, sequentially place spring two peripheral at cylindrical body one, spring screws in cylindrical bodys one to applicable position by two, latch two is put into hinge last two, guarantees that spring is subject to the position of two firm; Little antireverse valve spool and composition accessory and return-stopping disc link and namely complete.
The outside dimensions of return-stopping disc and the bottom Cone Disc consistent size of antireverse valve spool two, major character is also suitable, has done design alteration adopt split design at circular cone core top and cylindrical appropriate location; There is a groove two at place of return-stopping disc bottom centre, and groove edge, as non-return disc two, up has a through hole two, and through hole two top is another groove three, can supported spring two; Up have a groove four again, bottom land can support cylinder body one, and groove side has a jump-ring slot, and groove four put into by cylindrical body one, and the annular groove be pressed into by jump ring bottom cylindrical body one is implanted in jump-ring slot, namely completes the connection of cylindrical body one and return-stopping disc; Groove two is designed with little oilhole, leads to groove one and bowl-shape type runner; This little oilhole quantity can specifically be arranged according to different valve specification.
Operation instruction of the present utility model is as follows:
(1) pre-pressure relief flange formula liquid-filling valve be not with pre-pressure relief flange formula liquid-filling valve, the main distinction is that pre-pressure release type spool and traditional antireverse valve spool two are variant, and all the other accessory specifications are the same;
(2) valve body of flange-type liquid-filling valve provides two attachment faces, installation high-voltage side (pressurize side)-cylinder cover flange or piping flange, and another side installs the flange of low voltage side-fuel tank;
(3), when equipment runs, a large amount of hydraulic oil of operating cylinder specification demands is inserted and requires high voltage operation, and need the turnover oil duct of Large Diameter Pipeline to meet the demands, general valve cannot meet this generic request; By flow from 200-2500LPM, maximum pressure 25Mpa;
(4) operating cylinder drives with auxiliary cylinder, produces vacuum effect and attracts return-stopping disc down, but cannot full open, and now external control oil enters auxiliary hole one from PP mouth, exports above the blind hole of leading to cap towards center to auxiliary hole two; Pressed down by piston and promote cylindrical body one, overcome the impedance of spring one, touch little antireverse valve spool, then overcome the impedance of spring two, opened by little antireverse valve spool bottom cylindrical body one endoporus, section hydraulic oil injects P side from little oilhole; Continue to press down stroke, touch return-stopping disc bottom cylindrical body one, three move down together, aperture are reached maximum, and now hydraulic oil enters into P side by T side, until hydraulic oil fills up rodless cavity, operating cylinder stroke arrives summit, and oiling also stops; The external control oil of PP mouth does off-load, and cylindrical body one, little antireverse valve spool, return-stopping disc lean on the restoring force of spring one and spring two, and piston is back into starting point; Pressure is also brought up to high pressure conditions (10-21Mpa) by other oil duct by high-voltage oil cylinder, meets working condition requirement, and now return-stopping disc, little antireverse valve spool play close port and pressurize;
(5) when the pressurize operating mode of high workload oil cylinder terminates, when needing pressure release and get rid of hydraulic oil in oil cylinder, auxiliary cylinder starts reverse push operating cylinder, and external control oil enters auxiliary hole one from PP mouth, is pressed down by piston and promotes cylindrical body one, overcome the impedance of spring one, touch little antireverse valve spool bottom cylindrical body one endoporus, then overcome the impedance of spring two, little antireverse valve spool is opened, high pressure liquid force feed is in a small amount discharged from little oilhole, arrives T side by P side; Continue to press down, return-stopping disc is touched bottom cylindrical body one, three move down together, aperture is reached maximum, the time difference that this stroke difference causes, the pressure of high pressure liquid force feed is dropped to original 40-50%, the energy being entered into T side by P side reaches by state of a control, rodless cavity hydraulic oil continues to discharge, until operating cylinder stroke arrives initial point; The external control oil of PP mouth does off-load, and cylindrical body one, little antireverse valve spool, return-stopping disc lean on the restoring force of spring one and spring two, and piston is back into starting point.
Use background of the present utility model is: the growth of market economy slows down, and in order to more suitably cost control, manufacturing industry is all under the control prerequisite of good quality, and continuous advancement develops.; Just under this condition, the new product developed, can save cost for client, environmental protection simplifies pre-pressure relief flange formula liquid-filling valve described in the utility model, possesses again proper mass and even surmounts.
The utility model is not by the restriction of above-mentioned mode of execution; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (6)
1. a pre-pressure relief flange formula liquid-filling valve, comprise main valve body (1) and cap (2), described main valve body (1) bottom is provided with groove chamber (3), described groove chamber (3) top is provided with concentric groove one (4), non-return disc one (5) is formed between described groove chamber (3) and groove one (4), concentric through hole one (6) is provided with directly over described groove one (4), the bowl-shape type runner (7) be communicated with it is provided with above the side of described groove one (4), described main valve body (1) side opening is provided with auxiliary hole one (8), described auxiliary hole one (8) is communicated with the auxiliary hole two (9) in cap (2) sidewall, described auxiliary hole two (9) is communicated with the blind hole on cap (2) cover plate, the below of described cap (2) blind internal bore is provided with piston (10), it is characterized in that: described piston (10) below is provided with pre-pressure release type spool, described pre-pressure release type spool comprises cylindrical body one (11), little antireverse valve spool (12) and return-stopping disc (13), described return-stopping disc (13) is Cone Disc, described cylindrical body one (11) is fixedly connected on the cone tip part of return-stopping disc (13), the outer conical surface one of described return-stopping disc (13) contacts with non-return disc one (5), described cylindrical body one (11) is concentric with outer conical surface one, and with through hole one (6) Spielpassung, described cylindrical body one (11) upper end is connected with piston (10), described cylindrical body one (11) top peripheral is arranged with spring one (14), described cylindrical body one (11) bottom offers endoporus, little antireverse valve spool (12) is provided with below described endoporus, described little antireverse valve spool (12) is made up of the cylindrical body two on top and the Cone Disc two of bottom, described cylindrical body two outer race is provided with spring two (15), described return-stopping disc (13) bottom centre is provided with groove two (16), the lower limb of described groove two (16) forms non-return disc two (17), the outer conical surface two of described Cone Disc two contacts with non-return disc two (17), described groove two (16) top is provided with the through hole two (18) with cylindrical body two Spielpassung, described through hole two (18) top is provided with the groove three (19) for supported spring two (15), described groove three (19) top is provided with concentric groove four (20), described cylindrical body one (11) bottom is placed in groove four (20), the sidewall of described groove two (16) is provided with little oilhole (21), described little oilhole (21) is connected with groove one (4) and bowl-shape type runner (7).
2. pre-pressure relief flange formula liquid-filling valve as claimed in claim 1, it is characterized in that: the middle part of described main valve body (1) has been uniformly distributed circumferentially bolt hole (22), described main valve body (1) is connected as one by bolt hole (22) and cap (2), is tightly connected between described main valve body (1) and cap (2) by seal ring one (23).
3. pre-pressure relief flange formula liquid-filling valve as claimed in claim 2, is characterized in that: the both sides up and down of described main valve body (1) are provided with seal groove, is placed with seal ring two (24) in described seal groove.
4. pre-pressure relief flange formula liquid-filling valve as claimed in claim 3, it is characterized in that: the top of described cylindrical body one (11) is provided with screw thread one and the hinge last one (25) with axis perpendicular, described hinge last one (25) below is provided with spring by one (26), described spring is threaded onto on the screw thread one at cylindrical body one (11) top by one (26), described hinge last one (25) is built-in with latch one (27), and the upper end of described spring one (14) is connected by one (26) with spring.
5. pre-pressure relief flange formula liquid-filling valve as claimed in claim 4, it is characterized in that: the bottom outer radius of described cylindrical body one (11) is provided with annular groove, in described annular groove, press-in has jump ring (28), and described cylindrical body one (11) bottom is connected by jump ring (28) with between return-stopping disc (13).
6. pre-pressure relief flange formula liquid-filling valve as claimed in claim 5, it is characterized in that: the top of described cylindrical body two is provided with screw thread two and the hinge last two (29) with axis perpendicular, described hinge last two (29) below is provided with spring by two (30), described spring is threaded onto on the screw thread two at cylindrical body two top by two (30), described hinge last two (29) is built-in with latch two (31), and the upper end of described spring two (15) is connected by two (30) with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747000.8U CN204985133U (en) | 2015-09-24 | 2015-09-24 | Pressure release flange formula prefill valve in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747000.8U CN204985133U (en) | 2015-09-24 | 2015-09-24 | Pressure release flange formula prefill valve in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985133U true CN204985133U (en) | 2016-01-20 |
Family
ID=55119506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520747000.8U Active CN204985133U (en) | 2015-09-24 | 2015-09-24 | Pressure release flange formula prefill valve in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985133U (en) |
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2015
- 2015-09-24 CN CN201520747000.8U patent/CN204985133U/en active Active
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