CN207454839U - A kind of check-valves - Google Patents

Abstract

The utility model provides a kind of check-valves, and including being coaxially placed in the in vivo valve rod of valve, the valve rod is included under sealing cover, the mobile bar upwardly extended with sealing cover center on sealing cover, sealing cover along the equally distributed multiple leads extended downwardly in edge；Further include O-ring seal, spring, flange, plain adapter and clip, the sealing cover is contacted by O-ring seal with valve interior wall, pocketed springs in the mobile bar, the center alignment of the flange is mounted in mobile bar, and the clip for flushing skull conjunction outside flange and passing through circumferential direction makes plain adapter be fixed with valve body.The lead having on the utility model valve rod causes valve that can be installed with any position, no matter valve body is horizontal or is vertically arranged, all will not generate inclination because of gravity, solve the problems, such as the valve leak caused by the installation site difference of valve；The O-ring of valve rod is secured firmly in ring recess, is not in the leakage problem caused by O-ring comes off.

Description

A kind of check-valves

Technical field

The utility model is related to a kind of valve bodies, specifically design a kind of check-valves.

Background technology

Check-valves refers to flow in itself by medium and automatic open and close flap, for preventing the valve of medium refluence, also known as Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, main function be prevent medium from flowing backwards, Prevent pump and drive motor reversion and vessel media from releasing.As shown in Figure 1, existing check-valves is by valve body 1, sealing Plate 2, valve rod 3, spring 4, flange 5, sealing ring 6, nut 7, plain adapter 8 form, and sealing plate 2 is sleeved on valve rod, is loaded onto It after spring 4, is put into valve body 1, refills upper flange 5 and plain adapter 8, then nut tightening.The check-valves of this structure is deposited In Railway Project：First, sealing plate 2 is directly installed on valve rod 3, check-valves at work sealing plate 2 be easy to drop out or because Leaked for inclination, two, check-valves valve rod 3 when being horizontally mounted can be tilted by gravity, hold very much in action process It is easily stuck in the hole of flange 4, it is impossible to play the role of cut-off, the mounting means of all existing check-valves limits to very much.

Utility model content

Purpose of utility model：The utility model is in order to overcome the deficiencies in the prior art, it is proposed that one kind not only may be used It is installed with any direction, and the check-valves of maximizing flow.

Utility model content：In order to solve the above technical problems, the utility model provides a kind of check-valves, including coaxially putting In the in vivo valve rod of valve, the valve rod includes sealing cover, the mobile bar upwardly extended with sealing cover center on sealing cover, sealing Along the equally distributed multiple leads extended downwardly in edge under lid；

O-ring seal, spring, flange, plain adapter and clip are further included, the sealing cover passes through O-ring seal and valve body Inner wall contacts, pocketed springs in the mobile bar, and the center alignment of the flange is mounted in mobile bar, described to flush skull conjunction Outside flange and passing through circumferential clip makes plain adapter be fixed with valve body.

Further, the sealing cover is divided into the ring recess being equipped between two layers, two layers up and down for O-ring seal insertion.

Further, the upper strata outer profile of the sealing cover is more than lower floor.

Further, the edge of the flange is stepped, center be equipped with the matched movable span of mobile bar, around movable span It is evenly distributed with multiple liquid outflow ports.

Further, the periphery suit c-type sealing ring of the flange.

Further, the valve body and plain adapter are forging, and the valve rod is casting, reduces material and process time, from And reduce cost.

Advantageous effect：Compared with prior art, the utility model has the following advantages：

1st, the lead having on valve rod causes valve that can be installed with any position, no matter valve body is horizontal or vertically sets It puts, all will not generate inclination because of gravity, solve the problems, such as the valve leak caused by the installation site difference of valve；

2nd, by the setting combination O-ring of valve rod concrete structure, O-ring is made to be secured firmly in the ring recess of valve rod, it will not There is the leakage problem caused by O-ring comes off；

3rd, punching type flange is disposably stamping using mold, improves efficiency, reduces life cycle of the product, uses simultaneously The hole of stepped-style makes the circulation area of valve reach maximization, reduces resistance, saves energy consumption；

4th, it is intermediate using clamp connection, it is convenient to disassembly.

Description of the drawings

Fig. 1 is the structure diagram of check-valves in background technology；

The sectional view of Fig. 2 positions the utility model check-valves；

Fig. 3 is the structure diagram of valve body；

Fig. 4 is the bottom view of valve body；

The sectional view of Fig. 5 positions valve body；

Fig. 6 is the sectional view of flange；

Fig. 7 is the plan view of flange；

Fig. 8 is the stereogram of flange.

Specific embodiment

The technical solution of the utility model is further explained below in conjunction with the accompanying drawings.

Embodiment：As shown in Fig. 2, a kind of check-valves, including valve body 9, punching type flange 10, plain adapter 11, C-shaped sealing ring 12nd, spring 13, O-ring 14, valve rod 15 and clip 16, wherein, valve rod 15 is co-axially located in valve body 9, and one end of valve rod 15 is put In the import of valve body 9, the other end of valve rod 15 is placed in punching type flange 10.Specifically, as shown in Fig. 3 ~ 4, valve rod 15 wraps Include 4 lead 15-1, sealing cover 15-2, mobile bar 15-3, wherein, lead 15-1 since sealing cover 15-2 lower surfaces to Lower extension, 4 lead 15-1 and is uniformly distributed along the edge of sealing cover 15-2, and mobile bar 15-3 is fixed on sealing cover 15-2's Upper surface is upwardly extended with the center of sealing cover 15-2.In sealing cover, 15-2 points are upper and lower two layers, and the outer profile of last layer is more than Next layer, as shown in figure 5, being equipped with the ring recess 15-4 being embedded in for O-ring seal 6 between two layers, sealing cover 15-2 passes through O-shaped sealing Circle 6 is contacted with 9 inner wall of valve body.

Spring 13, the periphery suit C-shaped sealing ring 12 of punching type flange 10, punching are set on the mobile bar 15-3 of valve rod 15 The center alignment mobile bar 15-3 of pressure type flange 10 is installed, and the lid of plain adapter 11 closes outside flange 10 and passes through circumferential card Hoop 8 makes plain adapter 11 be fixed with valve body 9.Punching type flange 10 is arranged on punching type flange between valve body 9 and plain adapter 11 Inner wall of the outer wall of C-shaped sealing ring 12 on 10 respectively with valve body 9 and plain adapter 11 contacts.

As shown in Fig. 6 ~ 8, the outer profile of punching type flange 10 is in step type, down big up small, and 10 center of punching type flange Equipped with the movable span 10-1 to match with mobile bar 15-3, the surrounding for being centered around movable span 10-1 is uniformly distributed 5 liquid outflows Hole 10-2.

Ring recess 15-4 is processed on the present embodiment valve rod 15, O-ring seal 6 will not come off after being embedded in valve rod 15 from slot, It solves the problems, such as to cause leakage since sealing ring drops out, valve rod 15 is put into after loading onto O-ring seal 6 in valve body 9, loads onto bullet Spring 13 is sleeved on the flange 10 for installing C-shaped sealing ring 12 on valve rod 15 again, loads onto plain adapter 11, is with 16 clamping of clip finally It can.

Using valve rod 15 after such structure, not only O-ring seal 6 will not be disengaged from the groove in action process, while on valve rod 15 There are four leads, and valve is either horizontally mounted and right angle setting, will not tilt because of gravity factor valve rod 15, generate Stuck phenomenon, while the design of punching type flange 10 makes flow reach maximization.

The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (6)

1. a kind of check-valves, it is characterised in that：Including being coaxially placed in the in vivo valve rod of valve, the valve rod includes sealing cover, sealing Under the mobile bar that is upwardly extended on lid with sealing cover center, sealing cover along edge it is equally distributed it is multiple extend downwardly lead Xiang Zhu；

O-ring seal, spring, flange, plain adapter and clip are further included, the sealing cover passes through O-ring seal and valve interior wall It contacts, pocketed springs in the mobile bar, the center alignment of the flange is mounted in mobile bar, and the skull that flushes is closed in method Outside orchid and passing through circumferential clip makes plain adapter be fixed with valve body.

2. check-valves according to claim 1, it is characterised in that：The sealing cover is divided into be set between two layers, two layers up and down There is the ring recess for O-ring seal insertion.

3. check-valves according to claim 2, it is characterised in that：The upper strata outer profile of the sealing cover is more than lower floor.

4. check-valves according to claim 1, it is characterised in that：The edge of the flange to be stepped, center be equipped with The matched movable span of mobile bar is evenly distributed with multiple liquid outflow ports around movable span.

5. the check-valves according to claim 1 or 4, it is characterised in that：The periphery suit c-type sealing ring of the flange.

6. check-valves according to claim 1, it is characterised in that：The valve body and plain adapter are forging, and the valve rod is Casting.