CN206563096U - A kind of upper-mounting type ball valve - Google Patents

Abstract

The utility model discloses a kind of upper-mounting type ball valve, including valve body, bonnet, valve seat, valve shaft, filler sleeve, gland and hold-down grid, boss is provided with valve body internal channel symmetrical centre, positioning hole is drilled with boss, spheroid lower surface car has the locating shaft being engaged with positioning hole, filler is installed in filler sleeve and compressed with gland and hold-down grid and is sealed, valve seat coordinates the side of spheroid to be the conical surface, got on the bus in the conical surface fluted, sealing ring is installed in groove, the mating surface of valve seat second be drilled with prolong circumference put to a coil spring hole, 1 2mm gap is left between the first mating surface and valve body of valve seat, car has the neck being easily installed in the internal channel of valve seat, two circle seal grooves are further opened with valve seat is cylindrical.The utility model can provide good seal preload, reduce spheroid assembly difficulty, improve sealing surface assembly precision, and low assembly crewman's operating pressure, design of part is simple, easy to process, and device global reliability is high, with good economic benefit.

Description

A kind of upper-mounting type ball valve

Technical field

The utility model is related to a kind of upper-mounting type ball valve, belongs to valve arrangement field.

Background technology

Valve be in fluid system, for control the direction of fluid, pressure, flow device, ball valve be it is a kind of very Common valve types, ball valve is divided into single piece type ball valve, two-piece type ball valve, to bulb separation valve and upper-mounting type ball valve according to structure, its Can being safeguarded in the case where not dismantling pipeline to valve for middle upper-mounting type ball valve, very facilitates, thus by extensive Application, but be due to that upper-mounting type ball valve inner seat needs pretension, spheroid will avoid abrading spherome surface when from top loading, Valve seat is squeezed into again, and higher is required to assembler.

In view of the above problems, it is necessary to take into account how to improve the structure reduction spheroid assembly difficulty of upper-mounting type ball valve, improve Production efficiency.

Utility model content

To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of upper-mounting type ball valve.

In order to realize above-mentioned target, the utility model is adopted the following technical scheme that：

A kind of upper-mounting type ball valve, including valve body, bonnet, valve seat, valve shaft, filler sleeve, gland and hold-down grid, it is preceding State to be provided with boss, boss at valve body internal channel symmetrical centre and be drilled with positioning hole, foregoing spheroid lower surface car has and positioning hole phase The locating shaft of cooperation, the side car of foregoing valve shaft connection spheroid, which has, to be provided with filler in step, the filler sleeve and uses filler Gland and hold-down grid compress sealing, and foregoing valve seat coordinates the side of spheroid to be the conical surface, got on the bus in the conical surface fluted, aforementioned grooves Sealing ring is inside installed, the foregoing mating surface of valve seat second be drilled with prolong circumference put to a coil spring hole, the first mating surface of valve seat 1-2mm gap is left between valve body.

Preferably, foregoing bonnet bottom surface offers the spacing hole coordinated with spheroid top surface boss.

Preferably, car has the neck being easily installed in the internal channel of foregoing valve seat, can by fixture by valve seat towards flange Extruding, increases spheroid assembly space.

Preferably, foregoing valve seat it is cylindrical on be further opened with that O-ring is installed in two circle seal grooves, valve base sealing ring recess, Increase valve seal performance, seating spring is provided with spring in hole, help to provide valve base sealing pretightning force.

It is highly preferred that said o loop material matter is EPDM, spring model cylindrical thread spring, with good economy And versatility.

Preferably, aforementioned seal loop material matter is PTFE, and PTFE has hardness high, and heatproof is high, the advantage of good processability, warp It is commonly used for seal member.

It is of the present utility model to be beneficial in that：The utility model can provide good seal preload, reduction spheroid dress With difficulty, sealing surface assembly precision is improved, assembly crewman's operating pressure is advantageously reduced, valve seal performance, part knot is improved Structure is simple, easy to process, and device global reliability is high, with good economic benefit benefit.

Brief description of the drawings

Fig. 1 is the structural representation of a preferred embodiment of the present utility model；

Fig. 2 is the partial enlarged drawing at A in Fig. 1.

The implication of reference in figure：1st, valve body, the 2, first mating surface, 3, seal groove, the 4, second mating surface, 5, bullet Spring, 6, valve seat, 7, sealing ring, 8, neck, 9, spheroid, 10, bonnet, 11, valve shaft, 12, filler sleeve, 13, filler, 14, filler Gland, 15, hold-down grid.

Embodiment

Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicate Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that For to limitation of the present utility model.In addition, term " first ", " second " be only used for describe purpose, and it is not intended that indicate or Imply relative importance.

Referring to Fig. 1, a kind of upper-mounting type ball valve of the present utility model includes：Valve body 1, bonnet 10, valve seat 6, spheroid 9, valve shaft 11st, filler sleeve 12, gland 14 and hold-down grid 15.It is provided with boss, boss and is drilled with the internal channel symmetrical centre of valve body 1 Positioning hole, the lower surface car of spheroid 9 has the locating shaft being engaged with positioning hole, and the bottom surface of bonnet 10 is offered and the top surface boss of spheroid 9 The spacing hole of cooperation, the side car of the connection spheroid 9 of valve shaft 11, which has, to be provided with filler 13 in step, filler sleeve 12 and uses filler pressure Lid 14 and hold-down grid 15 compress sealing.

Referring to Fig. 1 and Fig. 2, valve seat 6 coordinates the side of spheroid 9 to be the conical surface, is got on the bus in the conical surface fluted, pacifies in the groove Equipped with sealing ring 7, the mating surface 4 of valve seat 6 second be drilled with prolong circumference put to a coil spring hole, the first mating surface 2 of valve seat 6 Car in 1-2mm gap, the internal channel of valve seat 6 is left between valve body 1 neck 8 being easily installed, and also opens on valve seat 6 is cylindrical Provided with two circle seal grooves 3, it is provided with the seal groove 3 of valve seat 6 in O-ring, the spring eye of valve seat 6 and spring 5, wherein O is installed Type loop material matter is EPDM, the model cylindrical thread spring of spring 5.

Specific in the present embodiment：Valve body 1 and bonnet 10 use cast shaping process, the material selection PTFE of sealing ring 7 Or the fluoroplastics material such as PEEK.

In order to more fully understand the utility model, the assembling process to upper-mounting type ball valve is briefly illustrated below：

It is first that all parts are clean with alcohol wipe, flash removed and greasy dirt are removed, the valve seat 6 for being provided with spring 5 is loaded into valve In body 1, the neck 8 fixed with instrument on valve seat 6 simultaneously stretches extrusion spring 5 to the flange of valve 1, and spheroid 9 is put into valve body 1 In, the seal member for unclamping ball valve after neck 8 is that assembling is completed, then successively by valve shaft 11, bonnet 10, filler 13, filler pressure Lid 14 and hold-down grid 15 are installed in place and fastened with corresponding fastener.

To sum up foregoing, the utility model can provide good seal preload, reduce spheroid assembly difficulty, improve sealing surface Assembly precision, advantageously reduces assembly crewman's operating pressure, improves valve seal performance, and design of part is simple, easy to process, dress Global reliability is put high, with good economic benefit.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be Combined in an appropriate manner in any one or more embodiments or example.

General principle of the present utility model, principal character and advantage has been shown and described above.The technical staff of the industry It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation The technical scheme obtained, all falls within protection domain of the present utility model.

Claims (5)

1. a kind of upper-mounting type ball valve, it is characterised in that the ball valve includes valve body（1）, bonnet（10）, valve seat（6）, spheroid（9）、 Valve shaft（11）, filler sleeve（12）, gland（14）And hold-down grid（15）, the valve body（1）At internal channel symmetrical centre Provided with boss, positioning hole, the spheroid are drilled with boss（9）Lower surface car has the locating shaft being engaged with positioning hole, the valve Axle（11）Connect spheroid（9）Side car have step, the filler sleeve（12）Filler is inside installed（13）And use gland （14）And hold-down grid（15）Compress sealing, the valve seat（6）Coordinate spheroid（9）Side be the conical surface, being got on the bus in the conical surface has recessed Sealing ring is installed in groove, the groove（7）, the valve seat（6）Second mating surface（4）Be drilled with prolong circumference put to a coil spring Hole, valve seat（6）The first mating surface（2）With valve body（1）Between leave 1-2mm gap, valve seat（6）Internal channel in car have just In the neck of installation（8）, valve seat（6）Two circle seal grooves are further opened with cylindrical（3）.

2. a kind of upper-mounting type ball valve according to claim 1, it is characterised in that the bonnet（10）Bottom surface is offered and ball Body（9）The spacing hole that top surface boss coordinates.

3. a kind of upper-mounting type ball valve according to claim 1, it is characterised in that the valve seat（6）Seal groove（3）Interior peace Equipped with O-ring, valve seat（6）Spring is installed in spring eye.

4. a kind of upper-mounting type ball valve according to claim 3, it is characterised in that the O-ring material is EPDM, spring type Number be cylindrical thread spring.

5. a kind of upper-mounting type ball valve according to claim 1, it is characterised in that the sealing ring（7）Material is PTFE.