CN204114182U - There is the stop valve of several functions - Google Patents
There is the stop valve of several functions Download PDFInfo
- Publication number
- CN204114182U CN204114182U CN201420553351.0U CN201420553351U CN204114182U CN 204114182 U CN204114182 U CN 204114182U CN 201420553351 U CN201420553351 U CN 201420553351U CN 204114182 U CN204114182 U CN 204114182U
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- China
- Prior art keywords
- hole
- valve
- valve rod
- side opening
- stop valve
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of stop valve with several functions, valve body is a four-way valve body communicated up and down, it is characterized in that: the safety check and the flow control valve that are provided with backflow preventer in upper through hole, be provided with stop valve in lower through-hole; Partition wall is provided with between water inlet and osculum, not connected; Also partition wall is provided with between upper through hole and lower through-hole, partition wall central authorities are provided with water port, aperture is drilled with in the middle part of water port, the upper and lower end of water port is respectively provided with annular sword limit, respectively as the valve seat of backflow preventer safety check and stop valve, the side of valve body also has side opening, and side opening is communicated with water port by aperture, is provided with the mechanism detecting backflow preventer return valve function in described side opening.The utility model solves the deficiency existing for single valve of prior art, develops a kind of stop valve with several functions stop valve, Flow valve and backflow preventer three are combined into one.
Description
Technical field
The utility model relates to a kind of stop valve, especially relates to the stop valve of one kind of multiple functions.
Background technique
Usually, lead on the lateral of user at water supply line, except reduction valve and water meter are installed, also stop valve, Flow valve and backflow preventer to be installed, because valve kind is more, require larger installing space, bring larger workload to again installation and maintenance, and add investment, also add the hidden danger that joint leaks.
Summary of the invention
The utility model mainly solves the deficiency existing for single valve of prior art, thus develops a kind of stop valve of several functions stop valve, Flow valve and backflow preventer three are combined into one;
Other object of the present utility model is: have and detect the whether normal function with measuring hydraulic pressure of backflow preventer performance.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of stop valve with several functions, valve body is a four-way valve body communicated up and down, water inlet and osculum are positioned on same level axis, upper through hole and lower through-hole are positioned on same vertical axis, it is characterized in that:
Safety check and the flow control valve of backflow preventer is provided with in upper through hole;
Stop valve is provided with in lower through-hole;
Partition wall one is provided with between water inlet and osculum;
Be provided with partition wall two between upper through hole and lower through-hole, described partition wall two central authorities are provided with water port, are drilled with aperture in the middle part of water port;
The upper and lower end of water port is respectively provided with annular sword limit, respectively as the valve seat of backflow preventer safety check and stop valve;
The bottom of upper through hole has an arc inclined hole to be communicated with osculum;
The side of valve body also has side opening, and side opening is communicated with water port by aperture, is provided with the mechanism detecting backflow preventer return valve function in described side opening; The axis of side opening and the intersect vertical axis of upper lower through-hole, and at grade.
The technical solution of the utility model can also be perfect further:
As preferably, the safety check of backflow preventer and flow control valve contain upper valve rod, guide sleeve, gland, locking nut, back-up ring, spool, spring, sealing gasket one;
Above through hole is cylinder barrel, and the inner hole of cylinder on described upper through hole top and guide sleeve are outer round and smoothly joins, and prevents medium from leaking by O-ring seals two, and cylinder barrel cylindrical is provided with outside thread, screws with the internal thread of gland, in order to be pressed on the upper-end surface of cylinder barrel by guide sleeve;
Described guide sleeve has a stepped shaft endoporus, and the larger endoporus on top is joined to the corresponding outer round and smooth of upper valve rod stage casing, and prevents medium from leaking by O-ring seals one, and bottom is internal thread, screws with the outside thread of hypomere in upper valve rod; When upper valve rod rotates, upper valve rod can move up and down simultaneously;
The center of upper valve rod has one in order to measure the slightness hole of hydraulic pressure, and there is a screw upper end of slightness hole, and fixes handwheel one with bolt one, packing ring one; The middle epimere of upper valve rod is provided with outside thread, screws with the internal thread of locking nut, in order to lock the position of upper valve rod after Flow valve adjust flux; In upper valve rod, the outside thread root of hypomere is provided with to limit upper valve rod and moves upward the ring washer of position; The cylinder of upper valve rod hypomere axostylus axostyle and the blind hole of spool are slided and are joined; Be provided with two radial holes at the root of spool blind hole, when moving in order to prevent spool, produce gas-tight phenomenon.
The profile of described spool is inverted T-shaped, and lower plane is provided with a circular groove, is provided with sealing gasket one in groove, as the flap of backflow preventer safety check, between the upper end and the lower end surface of guide sleeve of the outer omoplate of spool, is provided with spring.
As preferably, described sealing gasket one and sealing gasket two are fixed in circular groove with screw one, packing ring three and screw two, packing ring four respectively.
As preferably, described stop valve includes sealing gasket two, pressing plate, O-ring seals three, bottom flange, lower valve rod, O-ring seals four, packing ring two, bolt two, handwheel two, screw two, packing ring four;
The internal thread that the outside thread of bottom flange is corresponding to lower through-hole screws, and is pressed on the lower end surface of lower through-hole, prevents medium from leaking by O-ring seals three; After installation, the axis of bottom flange is consistent with the axis of upper and lower through hole; Bottom flange has a stepped shaft endoporus, and the external diameter of the endoporus that below is larger and lower valve rod hypomere is sliding joins, and prevent medium from leaking by O-ring seals four, top is provided with screw, screws with the outside thread in lower valve rod stage casing.
Described lower valve rod is a multidiameter shaft, and the axostylus axostyle of its upper end is equipped with pressing plate, and the upper plane of pressing plate is provided with an annular groove, is provided with the flap of sealing gasket two as stop valve in groove; The lower end of lower valve rod is fixed with handwheel two, and when rotating handwheel two, lower valve rod can drive sealing gasket three to move up and down, and opens or closes stop valve.
As preferably, corresponding conical valve seat and O-ring seals five in adjusting screw, side opening are contained in the mechanism detecting backflow preventer return valve function;
Internal thread and the concentric taper hole as valve seat is provided with in side opening;
Adjusting screw one end is provided with handwheel, the outside thread in bar portion and the internal thread adaptation of side opening, and the other end car of adjusting screw has frustum, and the taper hole of described frustum and side opening is adaptive, and frustum is provided with O-ring seals five; The center of adjusting screw is drilled with blind hole, and diametric(al) is drilled with two radial holes two, and blind hole communicates with radial hole two;
After installation, the axis of adjusting screw is consistent with the axis of side opening.
The utility model beneficial effect:
The utility model solves the deficiency existing for single valve of prior art, develops a kind of stop valve with several functions stop valve, Flow valve and backflow preventer three are combined into one; And there is the whether normal function with measuring hydraulic pressure of detection backflow preventer performance.Both save investment and also save installing space, easy to maintenance.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of front of the present utility model longitudinal sectional view;
Accompanying drawing 2 is side longitudinal sectional views of Fig. 1.
Description of reference numerals: 1, bolt one, 2, packing ring one, 3, handwheel one, 4, upper valve rod, 5, locking nut, 6, gland, 7, O-ring seals one, 8, O-ring seals two, 9, guide sleeve, 10, back-up ring, 11, spool, 12, spring, 13, sealing gasket one, 14, sealing gasket two, 15, pressing plate, 16, valve body, 17, O-ring seals three, 18, bottom flange, 19, lower valve rod, 20, O-ring seals four, 21, packing ring two, 22, bolt two, 23, handwheel two, 24, screw one, 25, packing ring three, 26, screw two, 27, packing ring four; 28, O-ring seals five, 29, adjusting screw;
A, water inlet, B, osculum, G, water port, H1, upper through hole, H2, lower through-hole, H3, side opening, W1, partition wall one, W2, partition wall two;
A, arc inclined hole, b, slightness hole, C, aperture, d, radial hole one, e, blind hole, f, radial hole two.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
Stop valve as shown in Figure 1, 2, valve body 16 is the four-way valve bodies communicated up and down, water inlet A and osculum B is positioned on same level axis, and upper through hole H1 and lower through-hole H2 is positioned on same vertical axis, and two axial lines intersects vertically and in the same plane.Water inlet A and the outer end of osculum B are provided with internal thread (or outside thread or flange) and are connected with intake pipe and outlet conduit respectively, and holes does not directly communicate, and centre has partition wall one W1 to be separated by; Be provided with partition wall two W2 between upper through hole H1 and lower through-hole H2, central authorities are provided with water port G, and the axis of water port G is consistent with the axis of upper and lower through hole, and middle part is drilled with aperture C; The upper and lower end of water port G is respectively provided with annular sword limit, respectively as the valve seat of backflow preventer safety check and stop valve; The bottom of upper through hole H1 has an arc inclined hole a to be communicated with osculum B; The side of valve body 16 also has side opening H3, is communicated with water port G by aperture C, the axis of side opening H3 and the intersect vertical axis of upper lower through-hole H1, H2, and at grade.
The safety check of backflow preventer and flow control valve are arranged in through hole H1, are made up of parts such as bolt 1, packing ring 1, handwheel 1, upper valve rod 4, locking nut 5, gland 6, O-ring seals 1, O-ring seals 28, guide sleeve 9, back-up ring 10, spool 11, spring 12, sealing gasket 1, screw 1 and packing rings 3 25.The inner hole of cylinder on upper through hole H1 top and guide sleeve 9 are outer round and smoothly joins, and prevents medium from leaking by O-ring seals 28; The internal thread of the outside thread on cylinder barrel cylindrical and gland 6 screws, in order to be pressed on the upper-end surface of cylinder barrel by guide sleeve 9.After installation, the axis of guide sleeve is consistent with the axis of upper lower through-hole H1, H2; Guide sleeve has a stepped shaft endoporus, the larger endoporus on top is joined to the corresponding outer round and smooth of upper valve rod 4 stage casing, and prevent medium from leaking by O-ring seals 1, bottom is internal thread, screw with the outside thread of hypomere in upper valve rod 4, therefore, when rotation handwheel 1 makes upper valve rod 4 rotate, upper valve rod 4 can move up and down simultaneously.
After installing, the axis of upper valve rod 4 is consistent with the axis of upper lower through-hole H1, H2, and there is an elongated hole b at its center, and there is a screw upper end of hole b, and in order to measure hydraulic pressure, and fix handwheel 1 with bolt 1, packing ring 1, packing ring 1 can prevent leaked water; The middle epimere outside thread of upper valve rod 4 and the internal thread of locking nut 5 screw, in order to lock the position of upper valve rod 4 after Flow valve adjust flux; The root of upper valve rod 4 lower end axostylus axostyle is provided with ring washer 10, in order to limit the position that upper valve rod 4 moves upward; The cylindrical of axostylus axostyle and the blind hole of spool 11 are slided and are joined.
The profile of spool 11 is inverted T-shaped, and lower plane is provided with a circular groove, is provided with sealing gasket 2 13 in groove, as the flap of backflow preventer safety check, and is fixed in circular groove with screw 1, packing ring 3 25; Be provided with two radial hole d at the root of spool 11 blind hole, when moving in order to prevent spool 11, produce gas-tight phenomenon.
Spring 12 is provided with between the upper end and the lower end surface of guide sleeve 9 of the outer omoplate of spool 11, spring 12 has certain pretightening force after mounting, therefore, when not water flowing, sealing gasket 1 is close on the annular sword limit above the G of water port all the time, and for avoiding excessive flow resistance loss, pretightening force is unsuitable excessive, as long as safety check can cut out rapidly and seal reliable when ensureing that medium flows backwards, the pressure of opening recommending safety check is 0.01 ± 0.002MPa.
Stop valve is arranged in the lower through-hole H2 of valve body 16, is made up of parts such as sealing gasket 2 14, pressing plate 15, O-ring seals 4 20, O-ring seals 3 17, bottom flange 18, lower valve rod 19, O-ring seals 4 20, packing ring 2 21, bolt 2 22, handwheel 2 23, screw 2 26, packing rings 4 27.The internal thread that the outside thread of bottom flange 18 is corresponding to lower through-hole H2 screws, and is pressed on the lower end surface of lower through-hole H2, prevents medium from leaking by O-ring seals 3 17; After installation, the axis of bottom flange 18 is consistent with the axis of upper and lower through hole H1, H2; Bottom flange 18 has a stepped shaft endoporus, and the external diameter of the endoporus that below is larger and lower valve rod 19 hypomere is sliding joins, and prevent medium from leaking by O-ring seals 4 20, the screw of top and the outside thread in lower valve rod 19 stage casing screw.
Lower valve rod 19 is multidiameter shafts, the axostylus axostyle of its upper end is equipped with pressing plate 15, and the upper plane of pressing plate 15 is provided with an annular groove, is provided with sealing gasket 2 14 in groove, as the flap of stop valve; Pressing plate 15 is fixed on the axostylus axostyle of lower valve rod 19 by screw 2 26, packing ring 4 27, and is fixed on by sealing gasket 2 14 in the groove of pressing plate 15; The lower end of lower valve rod 19 is fixed with handwheel 2 23, and when rotating handwheel 2 23, lower valve rod 19 can drive sealing gasket 2 14 to move up and down, and opens or closes stop valve.
The organization establishes detecting backflow preventer return valve function, in the side opening H3 of valve body 16, is made up of the part such as conical valve seat and O-ring seals 5 28 corresponding in adjusting screw 29, side opening H3.Be provided with internal thread and the concentric taper hole as valve seat in side opening H3, the outside thread in internal thread and adjusting screw 29 stage casing screws.The cylindrical of the handwheel of adjusting screw 29 one end has rolled straight burr, and the other end car has frustum, and frustum is provided with O-ring seals 5 28, and frustum tapering is consistent with side opening H3 internal taper hole tapering.The center of adjusting screw 29 is drilled with blind hole e, and diametric(al) is drilled with two radial hole f, and hole e and f communicates.After installation, the axis of adjusting screw 29 is consistent with the axis of side opening H3.
Function analysis of the present utility model:
1, in normal water supply situation, stop valve is in whole open position, now, the press water P1 of water intake overcomes the pressure of spring 12, by spool upwards jack-up, valve port is opened, and water flows out, to downstream water supply from osculum B through water inlet A, lower through-hole H2, water port G, upper through hole H1, arc inclined hole a.
2, in water supply process, if owing to cutting off the water supply suddenly or the reason such as upstream line maintenance, import hydraulic pressure is caused to be negative pressure, or outlet hydraulic pressure is when significantly increasing to over suddenly import hydraulic pressure, valve port is closed rapidly by sealing gasket 1 under the promotion of spring 12, prevents downstream addle or toxic substance to pollute clean water source.
3, during adjust flux, first stop valve all should be opened, then locking nut 5 is unclamped, rotate handwheel 1, due to moving up and down of upper valve rod 4, change the distance △ between upper valve rod 4 lower end surface and spool 11 blind hole bottom surface, so just change the aperture of valve port, also namely change flow, regulate after meeting the requirements, then locking nut 5 is locked.
It should be noted that, adjusted flow is peak rate of flow, if in use require once in a while comparatively small flow time, can turn down stop valve aperture realize.
4, when hydraulic pressure will be measured, first close stop valve, then the bolt 1 at upper valve rod 4 top and packing ring 1 are unloaded, load onto pressure gauge, again open stop valve water flowing, can hydraulic pressure value be recorded.
5, when to test as backflow preventer return valve function whether lower normal time, first stop valve is closed, then adjusting screw 29 is slowly exited, if check valve seal is damaged, or sealing valve port place is blocked by foreign material, so the water in downstream can pass through water port G, aperture C, side opening H3, radial hole two f, continuously outflows from the blind hole e of adjusting screw 29.Because inspection method is very simple, again without any need for instrument, therefore can check at any time, whether the function of Timeliness coverage safety check is normal.
6, there is stop valve function, except stop valve structure described in the utility model, still can adopt the stop valve of other structure.
Claims (5)
1. one kind has the stop valve of several functions, valve body (16) is a four-way valve body communicated up and down, water inlet (A) and osculum (B) are positioned on same level axis, and upper through hole (H1) and lower through-hole (H2) are positioned on same vertical axis, it is characterized in that:
Safety check and the flow control valve of backflow preventer is provided with in upper through hole (H1);
Stop valve is provided with in lower through-hole (H2);
Partition wall one (W1) is provided with between water inlet (A) and osculum (B);
Be provided with partition wall two (W2) between upper through hole (H1) and lower through-hole (H2), described partition wall two central authorities are provided with water port (G),
Middle part, water port (G) is drilled with aperture (c);
The upper and lower end of water port (G) is respectively provided with annular sword limit, respectively as the valve seat of backflow preventer safety check and stop valve;
The bottom of upper through hole (H1) has arc inclined hole (a) to be communicated with osculum (B);
The side of valve body (16) also has side opening (H3), and side opening is communicated with water port (G) by aperture (c), described side opening
(H3) mechanism detecting backflow preventer return valve function is provided with in; The intersect vertical axis of the axis of side opening (H3) and upper lower through-hole (H1), (H2), and at grade.
2. the stop valve with several functions according to claim 1, is characterized in that:
The safety check of backflow preventer and flow control valve contain upper valve rod (4), guide sleeve (9), gland (6), locking nut (5), back-up ring (10), spool (11), spring (12), sealing gasket one (13);
Above through hole (H1) is cylinder barrel, the inner hole of cylinder on described upper through hole (H1) top and guide sleeve (9) is round and smooth outward joins, and prevent medium from leaking by O-ring seals two (8), cylinder barrel cylindrical is provided with outside thread, screw with the internal thread of gland (6), in order to guide sleeve (9) is pressed on the upper-end surface of cylinder barrel;
Described guide sleeve (9) has a stepped shaft endoporus, and the larger endoporus on top is joined to the corresponding outer round and smooth of upper valve rod (4) stage casing, and prevents medium from leaking by O-ring seals one (7); Bottom is internal thread, screws with the outside thread of hypomere in upper valve rod (4), and when upper valve rod (4) rotates, upper valve rod (4) can move up and down simultaneously;
The center of upper valve rod (4) has one in order to measure the slightness hole (b) of hydraulic pressure, and there is a screw upper end of slightness hole (b), and fixes handwheel one (3) with bolt one (1), packing ring one (2); The middle epimere of upper valve rod (4) is provided with outside thread, screws with the internal thread of locking nut (5), in order to lock the position of upper valve rod (4) after Flow valve adjust flux; In upper valve rod (4), the outside thread root of hypomere is provided with the ring washer (10) limiting the position that upper valve rod (4) moves upward; The cylinder of upper valve rod (4) hypomere axostylus axostyle and the blind hole of spool (11) are slided and are joined; Be provided with two radial holes (d) at the root of spool (11) blind hole, during in order to prevent spool (11) mobile, produce gas-tight phenomenon;
The profile of described spool (11) is inverted T-shaped, lower plane is provided with a circular groove, be provided with sealing gasket one (13) in groove, as the flap of backflow preventer safety check, between the upper end of spool (11) outer omoplate and the lower end surface of guide sleeve (9), be provided with spring (12).
3. the stop valve with several functions according to claim 2, is characterized in that:
Described sealing gasket one (13) and sealing gasket two (14) use screw one (24), packing ring three (25) and screw two (26) respectively, packing ring four (27) is fixed in circular groove.
4. the stop valve with several functions according to claim 1 and 2, is characterized in that:
Described stop valve includes sealing gasket two (14), pressing plate (15), O-ring seals three (17), bottom flange (18), lower valve rod (19), O-ring seals four (20), packing ring two (21), bolt two (22), handwheel two (23), screw two (26), packing ring four (27);
The outside thread of bottom flange (18) and the corresponding internal thread of lower through-hole (H2) screw, and are pressed on the lower end surface of lower through-hole (H2), prevent medium from leaking by O-ring seals three (17); After installation, the axis of bottom flange (18) is consistent with the axis of upper and lower through hole (H1, H2); Bottom flange (18) has a stepped shaft endoporus, and the external diameter of the endoporus that below is larger and lower valve rod (19) hypomere is sliding joins, and prevent medium from leaking by O-ring seals four (20), top is provided with screw, screws with the outside thread in lower valve rod (19) stage casing;
Described lower valve rod (19) is a multidiameter shaft, the axostylus axostyle of its upper end is equipped with pressing plate (15), and the upper plane of pressing plate (15) is provided with an annular groove, is provided with the flap of sealing gasket two (14) as stop valve in groove; And sealing gasket two (14) is fixed in the groove of pressing plate (15); The lower end of lower valve rod (19) is fixed with handwheel two (23), and when rotating handwheel two (23), lower valve rod (19) can drive sealing gasket three (14) to move up and down, and opens or closes stop valve.
5. the stop valve with several functions according to claim 1 and 2, is characterized in that:
Corresponding conical valve seat and O-ring seals five (28) in adjusting screw (29), side opening (H3) are contained in the mechanism detecting backflow preventer return valve function;
Internal thread and the concentric taper hole as valve seat is provided with in side opening (H3);
Adjusting screw (29) one end is provided with handwheel, and the internal thread of the outside thread in screw rod portion and side opening (H3) is adaptive, and the other end car of adjusting screw has frustum, and the taper hole of described frustum and side opening (H3) is adaptive, and frustum is provided with O-ring seals five (28); The center of adjusting screw (29) is drilled with blind hole (e), and diametric(al) is drilled with two radial holes two (f), and described blind hole communicates with radial hole two;
After installation, the axis of adjusting screw (29) is consistent with the axis of side opening (H3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553351.0U CN204114182U (en) | 2014-09-24 | 2014-09-24 | There is the stop valve of several functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553351.0U CN204114182U (en) | 2014-09-24 | 2014-09-24 | There is the stop valve of several functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114182U true CN204114182U (en) | 2015-01-21 |
Family
ID=52331494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420553351.0U Withdrawn - After Issue CN204114182U (en) | 2014-09-24 | 2014-09-24 | There is the stop valve of several functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204114182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315164A (en) * | 2014-09-24 | 2015-01-28 | 杭州春江阀门有限公司 | Multifunctional cutoff valve |
-
2014
- 2014-09-24 CN CN201420553351.0U patent/CN204114182U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315164A (en) * | 2014-09-24 | 2015-01-28 | 杭州春江阀门有限公司 | Multifunctional cutoff valve |
| CN104315164B (en) * | 2014-09-24 | 2016-06-22 | 杭州春江阀门有限公司 | There is the stop valve of several functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20160622 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |