CN207687419U - A kind of Double-clack axial flow type check valve - Google Patents
A kind of Double-clack axial flow type check valve Download PDFInfo
- Publication number
- CN207687419U CN207687419U CN201721665056.4U CN201721665056U CN207687419U CN 207687419 U CN207687419 U CN 207687419U CN 201721665056 U CN201721665056 U CN 201721665056U CN 207687419 U CN207687419 U CN 207687419U
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- Prior art keywords
- clack
- spring
- fixing sleeve
- double
- axial flow
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Abstract
The utility model provides a kind of Double-clack axial flow type check valve, including valve body is equipped with and can the main valve clack of water inlet closure or openness, the main valve clack be equipped with through-hole, and the main valve clack is equipped with can be by the small flap of the through-hole closure or openness；The main valve clack is flexibly connected by the first spring with the fixing sleeve in valve body；The small flap is flexibly connected by second spring with connector, and the connector is flexibly connected by third spring with the fixing sleeve.The utility model can carry out starting mode of pump moment overload protection, and convenient for adjusting.
Description
Technical field
The utility model belongs to valve design and manufacturing technology field, and in particular to a kind of Double-clack axial flow type check valve.
Background technology
The main function of check-valves is to prevent medium from flowing backwards.Check-valves is also known as non-return valve, counterbalance valve or check valve.Non-return
Valve belongs to automatic valve, automatically turns on or closes by the power of media flow in pipeline.
Check-valves opening and closing element-flap then moves up and down along valve body middle chamber axis.Axial flow type check valve is opened by medium power
It opens, flap uses spring loads, quick closedown that can effectively reduce water hammer pressure, and good seal performance forms muting function.It is existing
Some check-valves can not carry out overload protection to starting mode of pump moment, and noise is also big.
Invention content
The utility model provides a kind of Double-clack axial flow type check valve, can carry out overload protection to starting mode of pump moment,
And convenient for adjusting.
The Double-clack axial flow type check valve of the utility model, including valve body be equipped with can be by the master of water inlet closure or openness
Flap, the main valve clack are equipped with through-hole, and the main valve clack is equipped with can be by the small flap of the through-hole closure or openness；Institute
Main valve clack is stated to be flexibly connected with the fixing sleeve in valve body by the first spring；The small flap is lived by second spring and connector
Dynamic connection, the connector are flexibly connected by third spring with the fixing sleeve.
Wherein, the fixing sleeve center is equipped with fixed station, and the fixed station center is equipped with threaded hole, the threaded hole center
Screw-thread fit has bolt, the rod end of the bolt to be connect with the connector, and the third spring pocket is loaded on the bolt
The body of rod on and be compressed between the connector and fixed station.Preferably, first spring and third spring with it is described solid
Surely the link position covered is respectively positioned on the fixed station.
Further, fixed station center is detachably provided with movable block, the movable block end have can with it is described
The limiting stand of the end face cooperation of fixed station, the movable block are flexibly connected with the bottom of the fixing sleeve by the 4th spring, institute
It states threaded hole to be set in the middle part of the movable block, the link position of the third spring and the fixing sleeve is located at the movable block
On, the link position of first spring and the fixing sleeve is located on the inactive face of the fixed station.
Wherein, the small flap is equipped with sliding bar, and the main valve clack is equipped with the sets of holes being slidably matched with the sliding bar.
Wherein, the connector is equipped with the limiting slot that limit can be clamped to the second spring.
Wherein, the fixing sleeve is cup-shaped, and side wall distance is successively decreased along the acceleration of flow direction of advance.
Wherein, the contact site opened and closed between the small flap and main valve clack is equipped with the first sealing ring, the master
The contact site opened and closed between flap and water inlet is equipped with the second sealing ring.
Compared with prior art, the beneficial effects of the utility model are：Water pump electricity can be reduced to shunting pressure release before valve
Machine starts the resistance of moment, avoids starting mode of pump immediate current excessive, realizes water pump soft start, and protecting water pump, excess load is not transported
Turn；It can play the role of pressure overload protection in the case where pressure is excessive；Can in fluid or larger pressure oscillation,
Play buffering adjustment effect；Component can also easily be adjusted, adapts to the needs such as the different pump housings, water body, operating mode.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.
In attached drawing：
Fig. 1 is a kind of structural schematic diagram of embodiment (unmarked) of the utility model；
Fig. 2 is the markd schematic diagram of Fig. 1 bands；
Fig. 3 is the partial enlarged view of the parts I in Fig. 1；
Fig. 4 is the partial enlarged view of the parts II in Fig. 1；
Specific implementation mode
In order to be better understood from the utility model, the utility model is further retouched with reference to specific attached drawing
It states.
The Double-clack axial flow type check valve of the utility model as shown in Figure 1, valve body 1 be equipped with water inlet 2 can be opened or
The main valve clack 3 of closure, the main valve clack 3 are equipped with through-hole 4, and the main valve clack 3, which is equipped with, to be opened the through-hole 4 or close
The small flap 5 closed；The main valve clack 3 is flexibly connected by the first spring 6 with the fixing sleeve 7 in valve body 1；The small flap 5 is logical
It crosses second spring 8 to be flexibly connected with connector 9, the connector 9 is flexibly connected by third spring 10 with the fixing sleeve 7.
In starting mode of pump moment, in upstream pressure very little, small pressure can take the lead in overcoming the elastic force of second spring 8, make small
Flap 5 is opened, and to shunting pressure release before valve, reduction pump motor starts the resistance of moment, avoids starting mode of pump immediate current excessive,
It realizes water pump soft start, protects water pump not overload operation；With starting mode of pump, upstream pressure slowly increases, the pressure energy before valve
When overcoming the elastic force of the first spring 6, main valve clack 3, which is pushed, opens entire water inlet 2.The setting of third spring 10 makes main valve clack
3 by push open when, small flap 5 can with main valve clack 3 persistently retreat (being moved along water (flow) direction), prevent 8 quilt of second spring
The smooth retrogressing that the limit causes small flap 5 to hinder main valve clack 3 is compressed to open.
Wherein, 7 center of the fixing sleeve is equipped with fixed station 11, and the fixed station center is equipped with threaded hole 12, the screw thread
12 central, threaded of hole is combined with bolt 13, and the rod end of the bolt 13 is connect with the connector 9 (preferably by screw thread
It is connected), the third spring 10 is set on the body of rod of the bolt 13 and is compressed in the connector 9 and fixed station 11
Between.Preferably, first spring 6 and third spring 10 and the link position of the fixing sleeve 7 are respectively positioned on the fixed station
On 11.
By adjusting the relative position relation between the bolt 13 and the fixed station 11, or choose different body of rod length
Bolt 13, the body of rod length between the connector 9 and fixed station 11 can be adjusted, so as to adjust second spring 8 and third
The pretightning force of spring 10 achievees the purpose that small 5 Opening pressure of flap of adjustment so that the check-valves of the utility model can adapt to not
The needs such as the same pump housing, water body, operating mode.
Further, 11 center of the fixed station is detachably provided with movable block 14, and 14 end of the movable block has can
The bottom of the limiting stand 15 coordinated with the end face of the fixed station 11, the movable block 14 and the fixing sleeve 7 is (in fixing sleeve 7
Bottom in water (flow) direction) it is flexibly connected by the 4th spring 16, the threaded hole 12 is set to 14 middle part of the movable block,
The link position of the third spring 10 and the fixing sleeve 7 is located on the movable block 14 (the preferably end face of movable block 14
On), the link position of first spring 6 and the fixing sleeve 7 be located on the inactive face of the fixed station 11 (i.e. not with work
Motion block 14 connects, and is not influenced by 14 activity of movable block).
By the fixed station 11 being wholely set fractionation movable block 14 is provided, can as needed to the specification of movable block 14 into
Row is replaced and adjustment, facilitates and adapts to the different pump housing, water body or operating mode；In addition threaded engagement part is easy to wear, upon wear
Also it can be replaced easily.Movable block 14 is fixed by the 4th spring 16 on fixed station 11, is playing fixed activity
While block 14 acts on, in the case where pressure is excessive, third spring 10 can be assisted to enable small flap 5 with main valve clack 3
It is lasting to retreat, play the role of pressure overload protection, buffering adjustment effect is in addition played in fluid or larger pressure oscillation.
Wherein, the small flap 5 is equipped with sliding bar 17, and the main valve clack 3 is equipped with and is slidably matched with the sliding bar 17
Sets of holes 18, the setting of the sliding bar 17 and sets of holes 18 plays good position-limiting action to the small flap 5, prevents small flap
5 position offsets cause to open by mistake the defects of opening or revealing.
Wherein, the connector 9 is equipped with the limiting slot 19 that limit can be clamped to the second spring 8.
Wherein, the fixing sleeve 7 is cup-shaped, and side wall distance is successively decreased along the acceleration of flow direction of advance, can be played good
Guide functions.
Wherein, the contact site opened and closed between the small flap 5 and main valve clack 3 is equipped with the first sealing ring 20, institute
It states the contact site opened and closed between main valve clack 3 and water inlet 2 and is equipped with the second sealing ring 21, each serve as good sealing
Effect.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of Double-clack axial flow type check valve, including be equipped with can be by the main valve clack of water inlet (2) closure or openness for valve body (1)
(3), the main valve clack (3) is equipped with through-hole (4), and the main valve clack (3) is equipped with can be by the through-hole (4) closure or openness
Small flap (5)；The main valve clack (3) is flexibly connected by the first spring (6) with the fixing sleeve (7) in valve body (1)；It is described small
Flap (5) is flexibly connected by second spring (8) with connector (9), the connector (9) by third spring (10) with it is described
Fixing sleeve (7) is flexibly connected.
2. Double-clack axial flow type check valve according to claim 1, which is characterized in that fixing sleeve (7) center is equipped with
Fixed station (11), the fixed station center are equipped with threaded hole (12), and threaded hole (12) central, threaded is combined with bolt (13),
The rod end of the bolt (13) is connect with the connector (9), and the third spring (10) is set in the bolt (13)
The body of rod on and be compressed between the connector (9) and fixed station (11).
3. Double-clack axial flow type check valve according to claim 2, which is characterized in that first spring (6) and third
Spring (10) and the link position of the fixing sleeve (7) are respectively positioned on the fixed station (11).
4. Double-clack axial flow type check valve according to claim 2, which is characterized in that fixed station (11) center is removable
It unloads and is provided with movable block (14), movable block (14) end has the limit that can coordinate with the end face of the fixed station (11)
Platform (15), the movable block (14) are flexibly connected with the bottom of the fixing sleeve (7) by the 4th spring (16), the threaded hole
(12) it is set in the middle part of the movable block (14), the third spring (10) and the link position of the fixing sleeve (7) are located at institute
It states on movable block (14), first spring (6) and the link position of the fixing sleeve (7) are located at the non-of the fixed station (11)
In active face.
5. Double-clack axial flow type check valve according to claim 1, which is characterized in that the small flap (5) is equipped with sliding
Bar (17), the main valve clack (3) are equipped with the sets of holes (18) being slidably matched with the sliding bar (17).
6. Double-clack axial flow type check valve according to claim 1, which is characterized in that the connector (9) is equipped with energy
Enough limiting slots (19) that limit is clamped to the second spring (8).
7. Double-clack axial flow type check valve according to claim 1, which is characterized in that the fixing sleeve (7) is cup-shaped, side
Wall distance is successively decreased along the acceleration of flow direction of advance.
8. Double-clack axial flow type check valve according to claim 1, which is characterized in that the small flap (5) and main valve clack
(3) contact site opened and closed between is equipped with the first sealing ring (20), is opened between the main valve clack (3) and water inlet (2)
The contact site for opening and closing is equipped with the second sealing ring (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665056.4U CN207687419U (en) | 2017-12-05 | 2017-12-05 | A kind of Double-clack axial flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665056.4U CN207687419U (en) | 2017-12-05 | 2017-12-05 | A kind of Double-clack axial flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207687419U true CN207687419U (en) | 2018-08-03 |
Family
ID=63000157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721665056.4U Active CN207687419U (en) | 2017-12-05 | 2017-12-05 | A kind of Double-clack axial flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207687419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842634A (en) * | 2017-12-05 | 2018-03-27 | 博纳斯威阀门股份有限公司 | A kind of Double-clack axial flow type check valve |
-
2017
- 2017-12-05 CN CN201721665056.4U patent/CN207687419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842634A (en) * | 2017-12-05 | 2018-03-27 | 博纳斯威阀门股份有限公司 | A kind of Double-clack axial flow type check valve |
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