CN208831737U - A kind of self-centering single-seat adjusting valve of floating plug - Google Patents

Abstract

The utility model discloses a kind of self-centering single-seat adjusting valves of floating plug, including valve body, valve body is transversely provided with runner exit and entrance, valve seat is installed on valve body, valve seat is linked together by screw thread and valve body, the longitudinal top of valve seat is equipped with spool, spool and valve seat form sealing surface, spool includes valve core head and guide post, it is connected by fixture nut with semicircular ring between valve core head and guide post, it is clearance fit between valve core head and guide post, valve body upper end is fixedly connected with valve deck by hexagon socket head cap screw, when use, use scope is wide, degree of regulation is high, spool valve seat energy autoregistration center.

Description

A kind of self-centering single-seat adjusting valve of floating plug

Technical field

The utility model relates to single-seat valve technical field, specially a kind of self-centering single-seat adjusting valve of floating plug.

Background technique

Single seat control valve is a kind of most commonly used control valve, and now most of is to require accurate adjusting, sealing requirements It is not very high.But some occasions require to adjust to require cutting again, and such single seat control valve is difficult to meet.It is used at present It is the fixed single seat control valve of top guide.When installing and using, spool and valve seat center cannot be coaxial, and sealing effect is not It is good.The utility model aim is to overcome deficiency existing for existing product, and it is wide to provide a kind of use scope, and degree of regulation is high, spool Valve seat energy autoregistration center, i.e., a kind of self-centering single-seat adjusting valve of floating plug.

Utility model content

The purpose of this utility model is to provide a kind of self-centering single-seat adjusting valves of floating plug, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions: a kind of self-centering single seat adjusting of floating plug Valve, including valve body, the valve body are transversely provided with runner exit and entrance, and valve seat is equipped on the valve body, and the valve seat passes through Screw thread links together with valve body, and the longitudinal top of the valve seat is equipped with spool, and the spool and valve seat form sealing surface, the valve Core includes valve core head and guide post, is connected by fixture nut with semicircular ring between the valve core head and guide post, the spool Be clearance fit between head and guide post, the valve body upper end is fixedly connected with valve deck by hexagon socket head cap screw, valve deck and It is sealed between valve body by wound gasket, filler, filler spacer, gland and filler pressure is equipped in the axis hole of the valve deck longitudinal direction Plate, the hold-down grid are fixed on valve deck by studs and nut.

Preferably, the guide post upper end is fixed with valve rod, and valve rod upper end is threaded.

Preferably, the guide post periphery is equipped with guide sleeve.

Preferably, the guide sleeve is fixed on valve deck.

Preferably, the filler is every being set between filler, and matrix liner is equipped in the axis hole of the filler lower end.

Compared with prior art, the utility model has the beneficial effects that

1. top guide, spool, valve rod reduce vibration；

2. movable by using valve core head, can not only make spool and valve seat from alignment can also save material at This；

3. valve seat and valve body are using threaded connection；

4. each part all carries out modularized production, the free renewal part in scene, greatly shorten the time between overhauls(TBO), reduction at This.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the valve core structure schematic diagram of the utility model.

In figure: 1, valve body；2, valve seat；3, spool；31, valve core head；32, fixture nut；33, guide post；34, semicircular ring； 4, valve rod；5, valve deck；6, nut；7, studs；8, hold-down grid；9, gland；10, filler；11, filler spacer；12, Matrix liner；13, hexagon socket head cap screw；14, wound gasket；15, guide sleeve.

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 referring to FIG. 1-2: a kind of self-centering single-seat adjusting valve of floating plug, Including valve body 1, valve body 1 is transversely provided with runner exit and entrance, and valve seat 2 is equipped on valve body 1, and valve seat 2 passes through screw thread and valve body 1 links together, and the longitudinal top of valve seat 2 is equipped with spool 3, and spool 3 and valve seat 2 form sealing surface, and spool 3 includes 31 He of valve core head 33 guide posts are connected between valve core head 31 and guide post 33 by fixture nut 32 and semicircular ring 34, valve core head 31 and guide post It is clearance fit between 33,1 upper end of valve body is fixedly connected with valve deck 5 by hexagon socket head cap screw 13, between valve deck 5 and valve body 1 It is sealed by wound gasket 14, is equipped with filler 10, filler spacer 11, gland 9 and hold-down grid in the longitudinal axis hole of valve deck 5 8, hold-down grid 8 is fixed on valve deck 5 by studs 7 and nut 6.

33 upper end of guide post is fixed with valve rod 4, and 4 upper end of valve rod is threaded, and exterior operator can pass through screw thread Connecting band ovable valve stem 4 is to drive valve core head 31 to move up and down.33 periphery of guide post is equipped with guide sleeve 15, and guide sleeve 15 can guarantee Guide post 33 is unlikely to deviate and be shaken when moving downward.Guide sleeve 15 is fixed on valve deck 5.Filler spacer 11 is arranged in filler Between 10, and matrix liner 12 is equipped in the axis hole of 10 lower end of filler.

Specifically, valve upper end can install execution machine in use, this is a kind of floating plug self-centering single-seat adjusting valve Structure, by connecting bracket and connection fixture block connection, band ovable valve stem 4 makes spool 3 move up and down, forms sealing surface with valve seat 2, from And reach adjusting and cutting medium effect.

In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.

In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as instruction or It implies relative importance or implicitly indicates the quantity of indicated technical characteristic, define " first ", " second ", " the as a result, Three ", the feature of " the 4th " can explicitly or implicitly include at least one of the features.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

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 self-centering single-seat adjusting valve of floating plug, including valve body (1), which is characterized in that the valve body (1) is transversely provided with Runner exit and entrance are equipped with valve seat (2) on the valve body (1), and the valve seat (2) is connected to by screw thread with valve body (1) Together, the longitudinal top of the valve seat (2) is equipped with spool (3), and the spool (3) and valve seat (2) form sealing surface, the spool (3) include valve core head (31) and guide post (33), pass through fixture nut (32) between the valve core head (31) and guide post (33) It is connected with semicircular ring (34), is clearance fit between the valve core head (31) and guide post (33), valve body (1) upper end passes through Hexagon socket head cap screw (13) is fixedly connected with valve deck (5), is sealed between valve deck (5) and valve body (1) by wound gasket (14), described Filler (10), filler spacer (11), gland (9) and hold-down grid (8) are equipped in the axis hole of valve deck (5) longitudinal direction, it is described to fill out Material pressing plate (8) is fixed on valve deck (5) by studs (7) and nut (6).

2. the self-centering single-seat adjusting valve of a kind of floating plug according to claim 1, it is characterised in that: the guide post (33) upper end is fixed with valve rod (4), and valve rod (4) upper end is threaded.

3. the self-centering single-seat adjusting valve of a kind of floating plug according to claim 1, it is characterised in that: the guide post (33) periphery is equipped with guide sleeve (15).

4. the self-centering single-seat adjusting valve of a kind of floating plug according to claim 3, it is characterised in that: the guide sleeve (15) it is fixed on valve deck (5).

5. the self-centering single-seat adjusting valve of a kind of floating plug according to claim 1, it is characterised in that: the filler spacer (11) it is arranged between filler (10), and is equipped with matrix liner (12) in the axis hole of the filler (10) lower end.