CN208951401U - A kind of needle valve of modified form - Google Patents

Abstract

The utility model discloses a kind of needle valves of modified form, it can prevent from valve shaft from connecting generation for a long time with threeway to loosen and vibrate, and then it can ensure and use for a long time, also the pressure being able to maintain between flanged joint reaches seal request, including threeway, valve shaft is equipped on the inside of the threeway, the leading exterior surface of the valve shaft is equipped with disk spring, and disk spring is set on the inside of threeway, one end of the valve shaft is equipped with groove, the other end of the valve shaft is equipped with syringe needle, the top of the threeway, which is equipped with, adjusts turntable, the lower end for adjusting turntable is fixedly installed with connection stake, the leading exterior surface of the connection stake is equipped with fixation hole, the leading exterior surface of the connection stake is equipped with hexagon socket head cap screw close to the inside of fixation hole.

Description

A kind of needle valve of modified form

Technical field

The utility model relates to valve field more particularly to a kind of needle valves of modified form.

Background technique

Needle valve is a kind of valve that can accurately adjust, and purposes is wider, for example gas flame cuttiug is cut away from adjusting flame The knob of temperature is exactly needle valve.Instrument needle valve is important component in instrument measurement pipe-line system, mainly there is shut-off valve And ball valve, function are to be used as to be shut on or off pipe path.The spool of needle valve is exactly a very sharp cone, seems needle It is equally inserted into valve seat, is thus gained the name.

However, existing needle valve after prolonged use valve shaft and threeway connect for a long time can generate loosening and vibration and Cause the pressure between flanged joint that seal request is not achieved.For this reason, it is necessary to design a kind of needle valve of modified form.

Utility model content

For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of needle-like of modified form Valve can prevent valve shaft from connecting generation for a long time with threeway and loosen and vibrate, and then can ensure and use for a long time, can also protect The pressure held between flanged joint reaches seal request.

One of the purpose of this utility model adopts the following technical scheme that realization:

A kind of needle valve of modified form, including threeway, the threeway inside are equipped with valve shaft, the leading exterior surface of the valve shaft Equipped with disk spring, and disk spring is set on the inside of threeway, and one end of the valve shaft is equipped with groove, the other end of the valve shaft Equipped with syringe needle, the top of the threeway, which is equipped with, adjusts turntable, and the lower end for adjusting turntable is fixedly installed with connection stake, the company The leading exterior surface of pile extension is equipped with fixation hole, and the leading exterior surface of the connection stake is equipped with interior hexagonal spiral shell close to the inside of fixation hole Silk.

Further, the adjusting turntable is circle, and the leading exterior surface for adjusting turntable is equipped with antiskid bar, described anti- The quantity of slide bar is several groups, and a side external surface of the connection stake is fixed by a side external surface of hexagon socket head cap screw and groove Connection.

Further, the upper end outer surface of the threeway is equipped with No.1 siphunculus, and one end of the valve shaft is fixedly installed with spiral shell One side external surface of bolt, the valve shaft is fixedly connected by bolt with a side external surface of No.1 siphunculus.

Further, the side of the No.1 siphunculus has been connected through a screw thread hex nut and hexagonal (hexagon)nut, the hexagonal Nut is set to the top of hex nut.

Further, the side of the threeway is equipped with No. two siphunculus, and the other side of the threeway is equipped with No. three siphunculus.

Further, the quantity of the disk spring is two groups, and the leading exterior surface of the valve shaft is equipped with sealing ring.

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

1, by the way that disk spring to be mounted between No.1 siphunculus and hexagonal (hexagon)nut through valve shaft, by disk spring in valve Special spring that is tapered and bearing load saves certain potential energy after bearing load deformation in axial direction, when pine occurs in bolt When relaxation, disk spring discharges part potential energy to keep the pressure between flanged joint to reach seal request, so that ensure makes for a long time Reach seal request effect with the pressure being also able to maintain between flanged joint；

2, since the needle valve used for a long time has abrasion, addition disk spring makes the gesture after wearing in disk spring It can be compressed down under energy, ensure that bolt is not in relaxation, achieve the effect that prevent from loosening and vibrate.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the present embodiment；

Fig. 2 is the partial structure diagram of the present embodiment；

Fig. 3 is the structural schematic diagram of valve shaft and hexagonal (hexagon)nut in the present embodiment；

Fig. 4 is the side view of the present embodiment.

In figure: 1, adjusting turntable；2, antiskid bar；3, stake is connected；4, fixation hole；5, valve shaft；6, No. three siphunculus；7, interior hexagonal Screw；8, hexagonal (hexagon)nut；9, No.1 siphunculus；10, hex nut；11, threeway；12, No. two siphunculus；13, groove；14, bolt； 15, disk spring；16, sealing ring；17, syringe needle.

Specific embodiment

In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes Any and all combinations of one or more related listed items.

A kind of needle valve of modified form referring to FIG. 1 to FIG. 4, including threeway 11, pass through phase between threeway 11 and valve shaft 5 Matched threaded connection is opened and closed by the through-hole that valve shaft 5 can control 11 inside of threeway, in order to need in view of disk spring 15 Load is born, disk spring 15 is run through to the leading exterior surface that valve shaft 5 is arranged in, the configuration of disk spring 15 herein is designed as Taper, one end of valve shaft 5 offer the groove 13 for connecting connection stake 3, and the other end of valve shaft 5 is equipped in control valve shaft 5 The syringe needle 17 of side through hole folding, does not limit the material of syringe needle 17, can according to need replacement, and the top installation of threeway 11 is useful Adjust the adjusting turntable 1 of valve shaft 5, the lower end for adjusting turntable 1 is connected with connection stake 3, the leading exterior surface of connection stake 3 offers Fixation hole 4, the inside of fixation hole 4 are equipped with hexagon socket head cap screw 7 and are used to connect stake 3 and the fixation of valve shaft 5, hexagon socket head cap screw 7 with it is interior The structure of die nut cooperation, because being conventional fastener standard design, this embodiment is not repeated.

Adjusting turntable 1 in the present embodiment, it is contemplated that adjust turntable 1 more meets ergonomics, and the present embodiment design is adjusted Saving turntable 1 is circle, and the leading exterior surface for adjusting turntable 1 is equipped with antiskid bar 2 for increasing user's hand and adjusting turntable 1 The frictional force of contact, the rotation for making user more labor-saving adjust turntable 1, and the quantity of antiskid bar 2 is several groups, connect the one of stake 3 Side external surface is fixedly connected by hexagon socket head cap screw 7 with a side external surface of groove 13, easy to operate, quick.

In addition, the present embodiment is equipped with No.1 siphunculus 9 in the upper end outer surface of threeway 11, No.1 siphunculus 9 plays installation valve shaft 5 Effect, one end of valve shaft 5 is fixedly installed with bolt 14, the spiral shell that valve shaft 5 passes through 9 inside of screw thread and No.1 siphunculus on bolt 14 Line connection, further increases the stability of the present embodiment.

In order to make bonding strength and fastening force of the present embodiment between No.1 siphunculus 9 and valve shaft 5, the one of No.1 siphunculus 9 Side has been connected through a screw thread hex nut 10 and hexagonal (hexagon)nut 8, and hexagonal (hexagon)nut 8 is set to the top of hex nut 10, passes through six Angle nut 10 and hexagonal (hexagon)nut 8 cooperate, and further increase the bonding strength and fastening force between No.1 siphunculus 9 and valve shaft 5.

The two sides of threeway 11 in the present embodiment are separately installed with No. two siphunculus 12 and No. three siphunculus 6, pass through No. two siphunculus 12 and No. three siphunculus 6 can be separately connected air inlet and the gas outlet of other equipment.

Meanwhile the quantity of disk spring 15 is two groups, the leading exterior surface of valve shaft 5 is equipped with sealing ring 16 for increasing bolt Leakproofness between 14 and No.1 siphunculus 9.

It should be noted that the utility model is a kind of needle valve of modified form, when in use, user is by by threeway No. two siphunculus 12 and No. three siphunculus 6 on 11 can be connected respectively on the air inlet and gas outlet in other equipment, be installed The adjusting rotation of turntable 1 can be used to adjust valve shaft 5 by being hold by one hand adjusting turntable 1 by user after finishing, by turning clockwise Dynamic valve shaft 5 can make the rotation of bolt 14 drive syringe needle 17 far from the through-hole on the inside of threeway 11, can make No. two siphunculus 12 and No. three Siphunculus 6 is connected, and syringe needle 17 can be made to block the through-hole of 11 inside of threeway by that will adjust turntable 1 and rotate counterclockwise, then cut The connection of disconnected No. two siphunculus 12 and No. three siphunculus 6 is connect with groove 13 by the way that hexagon socket head cap screw 7 is inserted into fixation hole 4, can be made Connection stake 3 is connect with valve shaft 5, is fixedly connected with adjusting turntable 1 with valve shaft 5, disk spring 15 plays the work for bearing load With being cooperated by hex nut 10 and hexagonal (hexagon)nut 8, further increase bonding strength between No.1 siphunculus 9 and valve shaft 5 and tight Gu power, more practical.

Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to In the utility model range claimed.

Claims (6)

1. a kind of needle valve of modified form, including threeway (11), it is characterised in that: valve shaft (5) are equipped on the inside of the threeway (11), The leading exterior surface of the valve shaft (5) is equipped with disk spring (15), and disk spring (15) is set on the inside of threeway (11), described One end of valve shaft (5) is equipped with groove (13), and the other end of the valve shaft (5) is equipped with syringe needle (17), the top of the threeway (11) Equipped with turntable (1) is adjusted, the lower end for adjusting turntable (1) is fixedly installed with connection stake (3), the front end of connection stake (3) Outer surface is equipped with fixation hole (4), and the leading exterior surface of connection stake (3) is equipped with interior hexagonal spiral shell close to the inside of fixation hole (4) Silk (7).

2. the needle valve of modified form as described in claim 1, it is characterised in that: the adjusting turntable (1) is circle, the tune The leading exterior surface for saving turntable (1) is equipped with antiskid bar (2), and the quantity of the antiskid bar (2) is several groups, the connection stake (3) A side external surface be fixedly connected by hexagon socket head cap screw (7) with a side external surface of groove (13).

3. the needle valve of modified form as described in claim 1, it is characterised in that: the upper end outer surface of the threeway (11) is equipped with One end of No.1 siphunculus (9), the valve shaft (5) is fixedly installed with bolt (14), and a side external surface of the valve shaft (5) passes through spiral shell Bolt (14) is fixedly connected with a side external surface of No.1 siphunculus (9).

4. the needle valve of modified form as claimed in claim 3, it is characterised in that: the side of the No.1 siphunculus (9) passes through spiral shell Line is connected with hex nut (10) and hexagonal (hexagon)nut (8), and the hexagonal (hexagon)nut (8) is set to the top of hex nut (10).

5. the needle valve of modified form as described in claim 1, it is characterised in that: the side of the threeway (11) is equipped with No. two and leads to It manages (12), the other side of the threeway (11) is equipped with No. three siphunculus (6).

6. the needle valve of modified form as described in claim 1, it is characterised in that: the quantity of the disk spring (15) is two The leading exterior surface of group, the valve shaft (5) is equipped with sealing ring (16).