CN206904280U - A kind of pneumatic fast opening and closing ball valve - Google Patents

Abstract

The utility model discloses a kind of pneumatic fast opening and closing ball valve, including valve body and valve rod, the inner chamber bottom of the valve body is provided with spheroid, the upper end of the spheroid is provided with valve rod, the lower end of the valve rod is fixed with limited block, the upper socket of the limited block has gasket seal, the upper socket of the valve rod has butterfly spring and gland nut, the upper end of the valve rod is fixedly connected with the drive link of cylinder, the lower end of the cylinder is connected by bolt with the upper end of valve body, the air inlet of the left and right ends of the cylinder connects two-position-five-way solenoid valve with the gas outlet of centre by pipeline.The pneumatic fast opening and closing ball valve, passes through the structure provided with cylinder and air filtration pressure reducer so that the keying of ball valve is more quick；By the structure provided with two-position-five-way solenoid valve, there is the characteristics of two-way quick acting；By the structure provided with filler, butterfly spring and valve rod, valve stem packing is set to remain pretightning force, sealed reliable, by the structure provided with valve seat, polytetrafluoroethylene (PTFE) valve seat coefficient of friction is small.

Description

A kind of pneumatic fast opening and closing ball valve

Technical field

Field of mechanical technique is the utility model is related to, specially a kind of pneumatic fast opening and closing ball valve.

Background technology

Pneumatic fast opening and closing ball valve is to can also be used for petrochemical industry, chemical industry etc. for certain space equipment back-blowing device development, the valve Row control industrial system makees fast opening/closing valve.Pneumatic fast opening and closing ball valve is ultrashort structure length, small-sized cramped construction Valve body, contrast ordinary ball valve, have structure length is ultrashort, installation dimension is small, it is in light weight, easy for installation, save material etc. significantly Advantage.Valve seat uses elastic sealing structure, sealed reliable.High-quality polytetrafluoroethylene (PTFE) seat material coefficient of friction is low, opens and closes torque It is small, wear-resistant, service life length.On demand, fire prevention and electrostatic prevention structure are may be designed as, quick response cylinder is commercially very Difficulty finds finished product, and common ball valve has shutoff valve gate delay, can not meet industrial requirements, therefore we have proposed a kind of pneumatic Fast opening and closing ball valve.

Utility model content

The purpose of this utility model is to provide a kind of pneumatic fast opening and closing ball valve, to solve to propose in above-mentioned background technology The problem of.

To achieve the above object, the utility model provides following technical scheme：A kind of pneumatic fast opening and closing ball valve, including valve Body and valve rod, the inner chamber bottom of the valve body are provided with spheroid, and the left and right sides of the spheroid is provided with valve seat, the upper end of the spheroid Provided with valve rod, the lower end of the valve rod is fixed with limited block, and the upper socket of the limited block has gasket seal, the valve rod Upper socket have butterfly spring and gland nut, the upper end of the valve rod is fixedly connected with the drive link of cylinder, the cylinder Lower end is connected by bolt with the upper end of valve body, and the air inlet of the left and right ends of the cylinder and middle gas outlet pass through pipeline Two-position-five-way solenoid valve is connected, the two-position-five-way solenoid valve connects air filtration pressure reducer, the air filtration by pipeline Pressure reducer is connected by pipeline with source of the gas.

Preferably, the spheroid, limited block, valve rod are respectively positioned in the inner chamber of valve body, the inner chamber top filling of the valve body There are filler, butterfly spring and gland nut, the filler is located at the bottom of butterfly spring, and the upper end of the filler is provided with filler pressure Set.

Preferably, the junction of the bolt and valve body is socketed with spring washer.

Compared with prior art, the beneficial effects of the utility model are：The pneumatic fast opening and closing ball valve, by provided with cylinder With the structure of air filtration pressure reducer, after source of the gas is handled by air filtration pressure reducer so that the pressure of air becomes stable, and And air more cleans, ensure that cylinder can stable operation, cylinder drive ball valve so that the keying of ball valve is more fast Speed；By the structure provided with filler, butterfly spring and valve rod, enable to the sealing of valve rod relatively reliable, reduce valve rod and turn Frictional force when dynamic, considerably increase the service life of valve rod；By the structure provided with two-position-five-way solenoid valve, can quickly cut Intercept valve, can make quick drain ball valve again, have the characteristics of two-way quick acting；Pass through the structure provided with valve seat, polytetrafluoroethyl-ne Alkene valve seat coefficient of friction is small, wear-resistant, service life length.

Brief description of the drawings

Fig. 1 is the utility model structure section view diagram；

Fig. 2 is structure partial sectional view of the present utility model；

Fig. 3 is gas circuit catenation principle figure of the present utility model.

In figure：1 valve body, 2 valve seats, 3 spheroids, 4 valve rods, 41 limited blocks, 5 gasket seals, 6 fillers, 7 filler pressing sleeves, 8 butterflies Shape spring, 9 gland nuts, 10 sources of the gas, 11 bolts, 12 spring washers, 13 cylinders, 14 air filtration pressure reducers, 15 two-position five-ways Magnetic valve.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of pneumatic fast opening and closing ball valve, including valve body 1 With valve rod 4, valve body 1 is the shell of ball valve, and the inner chamber bottom of the valve body 1 is provided with spheroid 3, and spheroid 3 is the headstock gear of ball valve, The left and right sides of the spheroid 3 is provided with valve seat 2, and valve seat 2 uses polytetrafluoroethylmaterial material, and valve seat 2 can effectively fix ball Body 3 so that the rotation that spheroid 3 can be stablized, while the seal of ball valve is also ensure that, the lower end of the valve rod is fixed with limit Position block 41, limited block 41 in order that ball valve has a good seal, the valve rod 4 is the transmission device of spheroid 3, the valve rod 4 bottom is socketed with gasket seal 5, and for gasket seal 5 in order to increase the seal of ball valve, the upper socket of the valve rod 4 has butterfly Shape spring 8 and gland nut 9, the spheroid 3, limited block 41, valve rod 4 are respectively positioned in the inner chamber of valve body 1, butterfly spring 8 and pressure It is relatively reliable that set nut 9 can seal valve stem packing, and the inner chamber top of the valve body 1 is filled with filler 6, the inner chamber of valve body 1 The filler 6 on top enables to the operation of valve rod 4 more stable, reduces frictional force when valve rod 4 rotates, adds valve rod 4 Service life, the filler is located at the bottom of butterfly spring 8, and the upper end of the filler 6 is provided with filler pressing sleeve 7, the upper end of filler 6 Filler pressing sleeve 7 in order to compress filler 6.The upper end of the valve rod 4 is fixedly connected with the drive link of cylinder 13, under the cylinder 13 End is connected by bolt 11 with the upper end of valve body 1, and the junction of the bolt 11 and valve body 1 is socketed with spring washer 12, gas Cylinder 13 and valve body 1 are connected by bolt 11 so that cylinder 13 and valve body 1 connect even closer, and stability is higher, passes through cylinder 13 drive ball valve so that the keying of ball valve is more quick.The air inlet of the left and right ends of the cylinder 13 and middle outlet Mouth connects two-position-five-way solenoid valve 15 by pipeline, and the two-position-five-way solenoid valve 15 passes through pipeline and connects air filtration decompression Device 14, the air filtration pressure reducer 14 are connected by pipeline with source of the gas 10, and source of the gas 10 is handled by air filtration pressure reducer 14 Afterwards so that the pressure of air becomes stable, and air more cleans, and ensure that cylinder 13 being capable of stable operation.Source of the gas 10 By air filtration pressure reducer 14 and two-position-five-way solenoid valve 15 source of the gas, air filtration pressure reducer 14 and two are provided to cylinder 13 Position five-way electromagnetic valve 15 uses NUMATICS (ASCO) brand, to ensure long period safe and reliable operation.When two-position five-way electromagnetism When valve 15 is opened, source of the gas enters in cylinder 13, and gas pressure produces thrust, the outlet of cylinder 13 on the piston in cylinder 13 Room is vented so that cylinder 13 rotates with ovable valve stem 4, so as to drive spheroid 3 to rotate, has the function that to close and opens.

Operation principle：For pneumatic fast opening and closing ball valve when being operated, source of the gas 10 passes through air filtration pressure reducer 14 and two Position five-way electromagnetic valve 15 provides source of the gas to cylinder 13, and when two-position-five-way solenoid valve 15 is opened, source of the gas enters in cylinder 13, air pressure Acting on the piston in cylinder 13, produce thrust, the discharge chamber exhaust of cylinder 13 so that cylinder 13 rotates with ovable valve stem 4, So as to drive spheroid 3 to rotate, have the function that to close and open, valve seat 2 can effectively fix spheroid 3 so that the energy of spheroid 3 Enough stable rotations, while the seal of ball valve is also ensure that, the filler 6 on the inner chamber top of valve body 1 enables to the fortune of valve rod 4 Row is more stable, reduces frictional force when valve rod 4 rotates, and adds the service life of valve rod 4, the filler pressure of the upper end of filler 6 Set 7 is in order to compress filler 6, and butterfly spring 8 and gland nut 9 can make valve stem packing sealing relatively reliable so that ball valve is run More stable, cylinder 13 and valve body 1 are connected by bolt 11 so that cylinder 13 and valve body 1 connect even closer, and stability is more Height, ball valve is driven by cylinder 13 so that the keying of ball valve is more quick, and source of the gas 10 passes through air filtration pressure reducer 14 After processing so that the pressure of air becomes stable, and air more cleans, and ensure that cylinder 13 being capable of stable operation.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (3)

1. a kind of pneumatic fast opening and closing ball valve, including valve body (1) and valve rod (4), it is characterised in that：The inner chamber of the valve body (1) Bottom is provided with spheroid (3), and the left and right sides of the spheroid (3) is provided with valve seat (2), and the lower end of the valve rod (4) is fixed with limit Position block (41), the upper socket of the limited block (41) have gasket seal (5), and the upper socket of the valve rod (4) has butterfly bullet Spring (8) and gland nut (9), the upper end of the valve rod (4) are fixedly connected with the drive link of cylinder (13), under the cylinder (13) End is connected by bolt (11) with the upper end of valve body (1), the air inlet of the left and right ends of the cylinder (13) and middle outlet Mouth connects two-position-five-way solenoid valve (15) by pipeline, and the two-position-five-way solenoid valve (15) connects air filtration by pipeline and subtracted Depressor (14), the air filtration pressure reducer (14) are connected by pipeline with source of the gas (10).

A kind of 2. pneumatic fast opening and closing ball valve according to claim 1, it is characterised in that：The spheroid (3), limited block (41), valve rod (4) is respectively positioned in the inner chamber of valve body (1), and the inner chamber top of the valve body (1) is filled with filler (6), filler pressing sleeve (7), butterfly spring (8) and gland nut (9), the filler are located at the bottom of filler pressing sleeve (7), the filler pressing sleeve (7) Upper end is provided with butterfly spring (8).

A kind of 3. pneumatic fast opening and closing ball valve according to claim 1, it is characterised in that：The screw rod of the bolt (11) with The junction of valve body (1) is socketed with spring washer (12).