CN209309396U - A kind of high-performance sealed quick-changing type angle one-way valve - Google Patents

Abstract

It is disclosed by the utility model to belong to check valve technical field, specially a kind of high-performance sealed quick-changing type angle one-way valve, with valve housing, pressure valve lid, valve body, first spring, air inlet, gas outlet and spool, the right end of the valve body is sheathed on the inner cavity of the valve housing, the pressure valve lid is fixedly connected with the valve housing, by the way that valve rod is arranged, limited block and second spring, and valve rod is fixedly connected with spool, so that in the cracking pressure for needing to adjust the check valve, protecting cover need to only be disassembled from pressure valve lid using screwdriver, and under second spring is dismantled from protecting cover and limited block, and replace the spring of different stiffness factors, the cracking pressure of the check valve is adjusted to realize, current check valve is avoided to need from the inner cavity of valve housing to tear valve body and spool open when its cracking pressure is adjusted Can just spring be replaced by unloading down, so that the problem that adjustment process is complex.

Description

A kind of high-performance sealed quick-changing type angle one-way valve

Technical field

Disclosed by the utility model to belong to check valve technical field, a kind of specially high-performance sealed quick-changing type right angle is unidirectional Valve.

Background technique

Check valve is that fluid can only be flowed along water inlet, and water outlet medium can not but flow back, and be commonly called as check valve.Check valve is again Claim check-valves or non-return valve.It is empty for preventing oil stream reverse flow in hydraulic system, or for preventing from compressing in pneumatic system Gas reverse flow.Check valve has through type and two kinds of right-angle type.Straight check valve, which is threadedly coupled, to be installed on the pipeline.Right angle Formula check valve has threaded connection, board-like connection and three kinds of forms of flanged joint, check valve to have through type and two kinds of right-angle type.It is straight-through Formula check valve, which is threadedly coupled, to be installed on the pipeline.Angle check valve have threaded connection, it is board-like connection and three kinds of flanged joint Form.Hydraulic control one-way valve is also referred to as locking-valve or pressure retaining valve, it is identical as check valve, to prevent oil liquid reverse flow, current Check valve needs to disassemble valve body and spool from the inner cavity of valve housing when its cracking pressure is adjusted just can be right Spring is replaced, so that the problem that adjustment process is complex, for this purpose, we have proposed a kind of high-performance sealed quick-changing type is straight Angle check valve comes into operation, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of high-performance sealed quick-changing type angle one-way valves, to solve above-mentioned background The current check valve proposed in technology is needed valve body and spool when its cracking pressure is adjusted from valve housing Inner cavity, which disassembles, can just replace spring, so that the problem that adjustment process is complex.

To achieve the above object, the utility model provides the following technical solutions: a kind of high-performance sealed quick-changing type right angle list To valve, there is valve housing, pressure valve lid, valve body, the first spring, air inlet, gas outlet and spool, the right end of the valve body is arranged In the inner cavity of the valve housing, the pressure valve lid is fixedly connected with the valve housing, the pressure valve lid and the valve body phase Clamping, the air inlet are opened in the right end of the valve housing, and the gas outlet is opened in up and down the two of the valve housing End, first spring pocket are set to the inner cavity of the valve body, and first spring is fixedly connected with the valve body, first bullet Spring is fixedly connected with spool, and the high-performance sealed quick-changing type angle one-way valve also has, valve rod, limited block, second spring and Protecting cover, the valve rod run through the pressure valve lid, and the valve rod is fixedly connected with the spool, the limited block and the valve rod Left end is fixedly connected, and the right end of the second spring is fixedly connected with the limited block, the left end of the second spring with it is described Protecting cover is fixedly connected, and is bolted to connection between the protecting cover and the pressure valve lid.

Preferably, the right end of the valve body offers integrally formed spring groove, the right end and upper and lower ends of the valve body Offer integrally formed stomata, the stomata is connected with the spring groove, stomata described in right end and the spring groove it Between be equipped with integrally formed cone tank, the tapered structure of spool.

Preferably, the first sealing ring, first sealing ring are fixedly installed between the valve body and the valve housing It is set to the right side of the valve body, first sealing ring is viton seal ring.

Preferably, integrally formed groove is offered on the outside of the right end of the pressure valve lid, the inner cavity of the groove is arranged with Second sealing ring, second sealing ring are in contact with the valve housing.

Preferably, the right end of the valve housing is uniformly equidistantly equipped with integrally formed stud, and the stud runs through institute Pressure valve lid is stated, the outside screw of the stud is connected with nut, is connected with third between the valve housing and the pressure valve lid Sealing ring.

Compared with prior art, the utility model has the beneficial effects that by setting valve rod, limited block and second spring, And be fixedly connected with valve rod with spool, so that need to will only be protected using screwdriver in the cracking pressure for needing to adjust the check valve Lid is disassembled from pressure valve lid, and under second spring is dismantled from protecting cover and limited block, and replaces the bullet of different stiffness factors Spring is adjusted the cracking pressure of the check valve to realize, current check valve is avoided to adjust to its cracking pressure Can just spring be replaced by needing to disassemble valve body and spool from the inner cavity of valve housing when section so that adjustment process compared with For complicated problem.

Detailed description of the invention

Fig. 1 is the utility model structure sectional view；

Fig. 2 is the utility model structure right view.

In figure: 1 stud, 2 nuts, 3 pressure valve lids, 4 second sealing rings, 5 valve bodies, 6 valve housings, 7 first sealing rings, 8 into Port, 9 gas outlets, 10 spools, 11 first springs, 12 valve rods, 13 protecting covers, 14 limited blocks, 15 second springs, 16 grooves, 17 cones Shape slot, 18 spring grooves, 19 third sealing rings, 20 stomatas.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution: a kind of high-performance sealed quick-changing type angle one-way valve, for controlling gas The one-way flow of body, referring to Fig. 1, having valve housing 6, pressure valve lid 3, valve body 5, the first spring 11, air inlet 8, gas outlet 9 With spool 10, the right end of valve body 5 is sheathed on the inner cavity of valve housing 6, and pressure valve lid 3 is fixedly connected with valve housing 6, pressure valve lid 3 It being clamped with 5 phase of valve body, air inlet 8 is opened in the right end of valve housing 6, and gas outlet 9 is opened in the upper and lower ends of valve housing 6, First spring 11 is sheathed on the inner cavity of valve body 5, and the first spring 11 is fixedly connected with valve body 5, and the first spring 11 and spool 10 are fixed Connection, in gas after the entrance of air inlet 8, the pressure of gas pushes spool 10 to slide to the left, and stops to air inlet 8 and outlet The obstruction of mouth 9, so that air inlet 8 is connected with gas outlet 9, gas can be discharged from gas outlet 9, and high-performance sealed quick-changing type is straight Angle check valve also has, valve rod 12, limited block 14, second spring 15 and protecting cover 13, valve rod 12 run through pressure valve lid 3, valve rod 12 with Spool 10 is fixedly connected, and limited block 14 is fixedly connected with the left end of valve rod 12, and the right end and limited block 14 of second spring 15 are fixed Connection, the left end of second spring 15 is fixedly connected with protecting cover 13, is bolted to connection, makes between protecting cover 13 and pressure valve lid 3 It obtains in the cracking pressure for needing to adjust the check valve, need to only be disassembled protecting cover 13 from pressure valve lid 3 using screwdriver, and Under second spring 15 is dismantled from protecting cover 13 and limited block 14, and the spring of different stiffness factors is replaced, to realize to this The cracking pressure of check valve is adjusted, and current check valve is avoided to be needed when its cracking pressure is adjusted by valve body 5 Can just spring be replaced by disassembling with spool 10 from the inner cavity of valve housing 6, be asked so that adjustment process is more complicated Topic, the right end of valve body 5 offer integrally formed spring groove 18, and the right end and upper and lower ends of valve body 5 offer integrated molding Stomata 20, stomata 20 is connected with spring groove 18, and integrally formed cone tank is equipped between right end stomata 20 and spring groove 18 17, the tapered structure of spool 10, the stomata 20 for allowing the first spring 11 that the spool 10 of pyramidal structure is pushed to resist right end, from And block right end stomata 10, avoid gas from the side leakage of spool 10 to the inner cavity of spring groove 18, valve body 5 and valve shell The first sealing ring 7 is fixedly installed between body 6, the first sealing ring 7 is set to the right side of valve body 5, and the first sealing ring 7 is fluorubber First sealing ring 7 is installed between valve housing 6 and valve body 5 by sealing ring, makes gas when entering the inner cavity of air inlet 8, can To prevent gas slot leakage place between valve housing 6 and valve body 5, offered on the outside of the right end of pressure valve lid 3 integrally formed Groove 16, the inner cavity of groove 16 are arranged with the second sealing ring 4, and the second sealing ring 4 is in contact with valve housing 6, make in gas When flowing into gas outlet 9 from air inlet 8, the second sealing ring 4 can prevent to flow between valve body 5 and valve housing 6 from gas outlet 9 Gas clearance leakage between outer housing 6 and pressure valve lid 3 goes out, so that the air-tightness of the check valve is improved, the right end of valve housing 6 It is uniformly equidistantly equipped with integrally formed stud 1, stud 1 runs through pressure valve lid 3, and the outside screw of stud 1 is connected with nut 2, valve Third sealing ring 19 is connected between gate housing 6 and pressure valve lid 3, thus prevent extraneous rainwater from valve housing 6 and pressure valve lid 3 it Between gap flow into groove 16 inner cavity, to reduce the aging speed of the second sealing ring 4 of 16 inner cavity of groove；

When using the check valve, admission line is connect with air inlet 8, exhaust pipe is connect with gas outlet 9, is there is gas When body is injected from air inlet 8, the pressure of gas pushes spool 10 to slide to the left along spring groove 18, and squeezes the contraction of spring 8, simultaneously Spool 10 is detached from the stomata 20 of 5 right end of valve body and upper and lower ends so that air inlet 8 is connected with gas outlet 9, gas can from into Port 8 is discharged into gas outlet 9, is finally discharged into the exhaust pipe connecting with gas outlet 9.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of high-performance sealed quick-changing type angle one-way valve has valve housing (6), pressure valve lid (3), valve body (5), the first bullet The right end of spring (11), air inlet (8), gas outlet (9) and spool (10), the valve body (5) is sheathed on the valve housing (6) Inner cavity, the pressure valve lid (3) are fixedly connected with the valve housing (6), and the pressure valve lid (3) is mutually clamped with the valve body (5), The air inlet (8) is opened in the right end of the valve housing (6), and the gas outlet (9) is opened in the valve housing (6) Upper and lower ends, first spring (11) are sheathed on the inner cavity of the valve body (5), first spring (11) and the valve body (5) it is fixedly connected, first spring (11) is fixedly connected with spool (10), it is characterised in that: the high-performance sealed quick change Formula angle one-way valve also has, and valve rod (12), limited block (14), second spring (15) and protecting cover (13), the valve rod (12) are passed through The pressure valve lid (3) is worn, the valve rod (12) is fixedly connected with the spool (10), the limited block (14) and the valve rod (12) left end is fixedly connected, and the right end of the second spring (15) is fixedly connected with the limited block (14), second bullet The left end of spring (15) is fixedly connected with the protecting cover (13), solid by bolt between the protecting cover (13) and the pressure valve lid (3) Fixed connection.

2. a kind of high-performance sealed quick-changing type angle one-way valve according to claim 1, it is characterised in that: the valve body (5) right end offers integrally formed spring groove (18), the right end of the valve body (5) and upper and lower ends offer one at The stomata (20) of type, the stomata (20) are connected with the spring groove (18), stomata described in right end (20) and the spring groove (18) integrally formed cone tank (17) are equipped between, the tapered structure of the spool (10).

3. a kind of high-performance sealed quick-changing type angle one-way valve according to claim 1, it is characterised in that: the valve body (5) it is fixedly installed between the valve housing (6) the first sealing ring (7), first sealing ring (7) is set to the valve The right side of body (5), first sealing ring (7) are viton seal ring.

4. a kind of high-performance sealed quick-changing type angle one-way valve according to claim 1, it is characterised in that: the pressure valve lid (3) it being offered integrally formed groove (16) on the outside of right end, the inner cavity of the groove (16) is arranged with the second sealing ring (4), Second sealing ring (4) is in contact with the valve housing (6).

5. a kind of high-performance sealed quick-changing type angle one-way valve according to claim 1, it is characterised in that: the valve shell The right end of body (6) is uniformly equidistantly equipped with integrally formed stud (1), and the stud (1) runs through the pressure valve lid (3), described The outside screw of stud (1) is connected with nut (2), and it is close to be connected with third between the valve housing (6) and the pressure valve lid (3) Seal (19).