CN208997380U

CN208997380U - A kind of hermetically sealed loose joint ball valve of high-performance

Info

Publication number: CN208997380U
Application number: CN201821465551.5U
Authority: CN
Inventors: 吴存兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2019-06-18
Anticipated expiration: 2028-09-07

Abstract

The utility model relates to valve technology fields, refer in particular to a kind of hermetically sealed loose joint ball valve of high-performance, including front valve shell, rear valve body and driving handle, cavity is equipped between the front valve shell and rear valve body, sphere is installed in cavity, one end of driving handle forms valve rod, the upper end that valve rod passes through the front valve shell is fixedly connected with the sphere, the periphery of the valve rod, which is fixed with, is embedded in fluoroplastics sealing turning set by injection molding, the utility model is by sealing turning set instead of RUBBER O type sealing ring, preferably play the role of valve rod and valve seal, to prevent the liquid and ball valve sealing device generation chemical reaction in bucket, and corroding leaks liquid in bucket, so we develop and fluoroplastics are used to seal turning set, the friction between two components is also reduced simultaneously, corrosion resistance is stronger, when operating driving handle, it can be easier Carry out rotate, more make the structure for sealing turning set stronger, it is not easy to wear, have the advantages that be widely used and long service life.

Description

A kind of hermetically sealed loose joint ball valve of high-performance

Technical field

The utility model relates to valve technology field, refer in particular to the hermetically sealed loose joint ball of a kind of high-performance on IBC tons of buckets Valve.

Background technique

Ball valve comes out in the 1950s, with the rapid development of science and technology, production technology and product structure are not It is disconnected to improve, in the 40 short years, rapidly develop as a kind of main valve class.In the country of western industrial prosperity, The use of ball valve is continuous year by year to be risen, in China, ball valve be widely used petroleum refining, long-distance transport pipes, chemical industry, The industries such as papermaking, pharmacy, water conservancy, electric power, municipal administration, steel occupy very important status in national economy, and ball valve is in pipeline In be mainly used to make the flow direction for cutting off, distributing and changing medium, it only needs to be turned with operation for being rotated by 90 ° and very little Kinetic moment can close tightly.Ball valve has many advantages, such as simple and compact for structure, sealed reliable, easy to maintenance, sealing surface and spherical surface Often in closed state, it is not easy by medium erosion, easily operated and maintenance is suitable for the general works such as water, solvent, acid and natural gas Medium is mainly used for being truncated or connecting the medium in pipeline, also can be used for the adjusting and control of fluid.

Currently, ICB tons of bucket ball valves used in the market, it includes valve body, is set to the intracorporal valve ball of valve, connects with valve ball The valve rod that connects and it is all made of the production of PP or PE material with valve rod handle interconnected, has many advantages, such as that chemical-resistance is good, The periphery of valve rod is equipped with RUBBER O type sealing ring, be used for existing gap between sealed valve stem and valve body, and make two components it Between can mutually rotate, but when in use between when increasing, RUBBER O type sealing ring will cause abrasion, to increase between the two Gap, between valve body and valve rod sealing performance decline, influence service life, influence the sealing effect of liquid in bucket, RUBBER O Type sealing ring is also possible to that chemical reaction occurs with the liquid in IBC barrels or is corroded, so that dissolution is in a liquid, causes in bucket Liquid is leaked by valve body mesoporous, so that making IBC barrels to scrap cannot use；And the structural strength of sealing ring is poor, is easy shadow The rotation and service life of valve rod are rung, therefore the service life of the sealing effect and valve rod between guarantee valve body and valve rod is all Be presently, there are the problem of.

Summary of the invention

The purpose of the utility model is to provide a kind of sound construction, easy for installation, leakproofness is high and valve rod is not easy to wear and The strong high performance corrosion-proof ball valve of corrosion resistance.

Purpose of the utility model is realized as follows: a kind of hermetically sealed loose joint ball valve of high-performance, including front valve shell, rear valve Body and driving handle are equipped with cavity, are equipped with sphere, the driving handle in the cavity between the front valve shell and rear valve body One end form valve rod, the mesoporous that the valve rod passes through the front valve shell upper end is fixedly connected with the sphere, the valve rod Periphery be fixed with sealing turning set, the outer surface for sealing turning set forms annular relief, and the valve rod passes through the ring Shape lug boss is rotated in the mesoporous of front valve shell.

Preferably, the material of the sealing turning set is to wait fluoroplastics, and the equal fluoroplastics include TFE copolymer ETFE and fluorinated ethylene propylene copolymer FEP.

Preferably, the upper end of the front valve shell forms mesoporous rotation section, and the valve rod is mounted on the mesoporous rotation section Interior, the annular relief is in contact with the inner circumferential of the mesoporous rotation section.

Preferably, the lower end of the valve rod is provided with limit chuck, and the sealing turning set is mounted on limit chuck and valve Between bar.

Preferably, the upper end of the mesoporous rotation section forms the boss that the restricted driving handle moves up.

Preferably, one end of the driving handle is extended with limited block, and the side of the mesoporous rotation section is extended with and it Compatible limited post.

Preferably, the end face that the sphere is connect with the front valve shell and rear valve body is equipped with sealing ring, and the sphere exists It is rotated between two sealing rings.

Preferably, the front valve shell and rear valve body are directly connected to by sweat soldering, offer first on the front valve shell Mounting hole, offers the second mounting hole on the rear valve body, fastener by the first mounting hole, the second mounting hole reinforce it is described before Connection between valve body and rear valve body.

Preferably, mounting groove is offered on the sphere, the valve rod bottom end is correspondingly provided with convex block, and driving handle passes through convex Block drives sphere rotation.

Preferably, one end of the rear valve body is socketed with pipe connecting piece, and pipe connecting piece can be flexibly connected with IBC bung hole, before described One end of valve body is equipped with sealing cover, and sealing cover is fixedly mounted on the end face of the front valve shell by solid cover piece.

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

1, the utility model forms the design of annular relief by the periphery of the sealing turning set on valve rod, uses fluorine Plastic seal turning set preferably plays the sealing function of valve rod and valve body, prevents bucket instead of traditional RUBBER O type sealing ring Interior liquid is leaked by ball valve mesoporous, causes IBC barrels cannot use, while also reducing the coefficient of friction between two components, It when operating driving handle, easier can be rotated, more make the structure for sealing turning set stronger, it is not easy to wear, it is resistance to Corrosivity is stronger, has the advantages that be widely used long with physical life.

2, the utility model is by by the design of driving handle and valve-stem integrated, so that driving handle and valve rod were integrated Component, by being integrally formed, structural strength is higher, reduces the quantity of part, reduces the complication of assembling.

3, the utility model has the function of limitation sealing turning set position, makes for a long time by the design of limit chuck In, the position for sealing turning set will not change, and have the advantages that long service life.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the schematic cross-sectional view of the utility model.

Fig. 3 is the configuration schematic diagram of the utility model.

Fig. 4 is driving handle and the structural schematic diagram for sealing turning set.

The following drawings is marked to mark on it in conjunction with attached drawing: 1- front valve shell；2- rear valve body；3- driving handle；4- valve rod； 5- seals turning set；6- annular relief；7- mesoporous rotation section；8- limits chuck；9- boss；10- limited block；11- limit Column；12- sealing ring；The first mounting hole of 13-；The second mounting hole of 14-；15- fastener；16- mounting groove；17- convex block；18- pipe connects Part；19- sealing cover；20- consolidates cover piece；21- sphere.

Specific embodiment

The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1~4:

A kind of hermetically sealed loose joint ball valve of high-performance, including front valve shell 1, rear valve body 2 and driving handle 3,1 He of front valve shell Rear valve body 2 forms ball valve, and ball valve and driving handle 3 are all made of PP or PE plastics, are equipped between the front valve shell 1 and rear valve body 2 Cavity is equipped with sphere 21 in the cavity, and one end of the driving handle 3 forms valve rod 4, and the valve rod 4 passes through described The mesoporous of 1 upper end of front valve shell is fixedly connected with the sphere 21, and the periphery of the valve rod 4 is fixed with sealing turning set 5, sealing The outer surface of turning set 5 forms annular relief 6, the valve rod 4 by the annular relief 6 front valve shell 1 mesoporous Inside rotated.

The utility model essentially discloses a kind of technical solution that sealing turning set 5 is fixed in 4 periphery of valve rod, and sealing turns Dynamic set 5 is closely embedded in/is fitted in the periphery of valve rod 4, not easily to fall off and sound construction by injection molding, and the utility model passes through The periphery of sealing turning set 5 forms the design of annular relief 6, using the sealing turning set 5 of one instead of conventional mounting The structure of RUBBER O type sealing ring, the O-ring seal of rubber material is relatively soft, is prone to wear and falls off, and is not suitable for being used for a long time, The sealing turning set 5 is process by fluoroplastics material, and the fluoroplastics are corrosion-resistant in all plastics, high temperature resistant friction systems The best plastics of the titles extremely low and that have " King " of number, hardness and strength with higher are not easy to wear, reduce two components it Between coefficient of friction easier can be rotated when operating driving handle, the ceiling temperature being able to bear is 200 to take the photograph Family name's degree has quite determining fusing point, can use general hot plastic processing method processing and forming, keep processing technology greatly simplified, It with excellent chemical-resistant stability, is not corroded when being contacted with other chemicals, corrosion resistance is strong, can widely answer For various occasions, preferably play the role of sealed valve stem and valve body, prevents liquid and ball valve seal ring in bucket It learns reaction to be corroded and leaked, has the advantages that be widely used and long service life.

Preferably, the material of the sealing turning set 5 is to wait fluoroplastics, and the equal fluoroplastics include TFE copolymer ETFE and fluorinated ethylene propylene copolymer FEP, the ball seal circle that the front valve shell 1 is connect with valve body 2 is polytetrafluoroethyl-ne This material of alkene PTFE, the Packed material of institute is equal fluoroplastics in ball valve, including polytetrafluoroethylene PTFE and tetrafluoroethene it is total Other fluoroplastics such as polymers ETFE, fluorinated ethylene propylene copolymer FEP.

This material of polytetrafluoroethylene PTFE has the characteristics that, is nontoxic, antiacid alkali resistant, resisting various organic solvents, hardly All solvents are dissolved in, will not be decomposed by unclassified stores and generate noxious material, meanwhile, polytetrafluoroethylene (PTFE) has spy resistant to high temperature Point, its coefficient of friction are extremely low；Fluorinated ethylene propylene copolymer FEP its tensile strength, wearability, creep resistance are lower than many works Engineering plastics, it be it is chemically inert, in very wide temperature and frequency range have lower dielectric constant (2.1)；ETFE's Use temperature range is more practical relatively wide, and steady temperature is typically set between -65 DEG C to+150 DEG C, still hard non-in ultralow temperature All, brittle temperature is down to -100 DEG C.In addition, ETFE has also passed through several stringent fire-resistant tests, such as IEEE 383, and obtain UL 94V-0 grade.It is small on the influence of the physical attribute of most of chemical substances, it is low to the permeability of common gases and aqueous vapor.

Preferably, the upper end of the front valve shell 1 forms mesoporous rotation section 7, and the valve rod 4 is mounted on the mesoporous rotation In portion 7, the annular relief 6 is in contact with the inner circumferential of the mesoporous rotation section 7.

The technical program specifically describes the installation site of valve rod 4, and valve rod 4 is mounted in the mesoporous rotation section 7, institute It states annular relief 6 and plays gap between sealed valve stem 4 and mesoporous rotation section 7, prevent the liquid in bucket from leaking by ball valve, Reduce frictional force with 7 inner circumferential of mesoporous rotation section again simultaneously so that valve rod 4 in mesoporous rotation section 7 can it is easier into Row rotation, controls the switch of ball valve.

Preferably, the lower end of the valve rod 4 is provided with limit chuck 8, and the sealing turning set 5 is mounted on limit chuck 8 Between valve rod 4.

The technical program specifically describes the structure of valve rod 4 and the mounting means of sealing turning set 5, and sealing turning set 5 is pacified Between the limit chuck 8 and driving handle 3 of 4 lower end of valve rod setting, insert molding is mainly molded by injection molding machine, quite In being mounted in a groove, while it being fitted tightly over the periphery of valve rod 4 again, sound construction, limit chuck 8 limits sealing and turns The position of dynamic set 5 can not move, and make its stronger non-loosening.

Preferably, the upper end of the mesoporous rotation section 7 forms the boss 9 that the restricted driving handle 3 moves up.

Boss 9 described in the technical program is matched with the groove that 3 inner circumferential of driving handle opens up, in actual use, convex Platform 9 is clamped in a groove, and handle 3 is stuck on valve body, and driving handle 3 can not just carry out vertically movable, is not easy point It opens.

Preferably, one end of the driving handle 3 is extended with limited block 10, and the side of the mesoporous rotation section 7 is extended with Matched limited post 11.

In actual use, when driving handle 3 is torqued into certain angle, limited block 10 is against on the limited post 11, limit Driving handle 4 processed continues to reverse, and fixes the rotation angle of driving handle 3 by limited post 11 and limited block 10, makes its ball valve The position-limiting action for playing on or off reduces the amplitude of the rotation of driving handle 4, extends the service life of sphere 21.

Preferably, the end face that the sphere 21 is connect with the front valve shell 1 and rear valve body 2 is equipped with sealing ring 12, described Sphere 21 rotates between two sealing rings 12.

The technical program passes through the connection of sphere 21 and two sealing rings, so that the sealing performance of ball valve is more further excellent Change, the both ends of the surface of sphere 21 are provided with polytetrafluoroethylene (PTFE) (PTFE) sealing ring.

Preferably, the front valve shell 1 is connected with rear valve body 2 by sweat soldering, any seal washer is not needed, before described The first mounting hole 13 is offered on valve body 1, the second mounting hole 14 is offered on the rear valve body 2, and fastener 15 passes through the first peace Fill hole 13, the second mounting hole 14, the connection being fixed between the front valve shell 1 and rear valve body 2.

In actual use, the front valve shell 1 is connected with rear valve body 2 by sweat soldering, and the fixation of sphere can be completed Secondly connection is being spirally connected with nut across the first mounting hole 13, the second mounting hole 14 using fastener 15, front valve shell can be completed Reinforcing connection between 1 and rear valve body 2, fastener 15 described in the technical program use bolt.

Preferably, mounting groove 16 is offered on the sphere 21,4 bottom end of valve rod is correspondingly provided with convex block 17, drives hand Handle 3 drives sphere 21 to rotate by convex block 17.

In actual use, by rotate driving handle 4, thus make convex block 17 drive sphere 21 rotate, mounting groove 16 with The rotational angle of the cooperation limitation sphere 21 of convex block 17, makes sphere that can only horizontally rotate, completes the switch motion of ball valve.

Preferably, one end of the rear valve body 2 is socketed with pipe connecting piece 18, and pipe connecting piece 18 can be flexibly connected with IBC bung hole, institute The one end for stating front valve shell 1 is equipped with sealing cover 19, and the sealing cover 19 is fixedly mounted on the front valve shell 1 by solid cover piece 20 End face on.

The technical program mainly describes one kind and further increases leakproofness between ball valve and ton bucket by pipe connecting piece 18 It can include that two symmetrical components connect to be formed with the technical solution of bonding strength, the pipe connecting piece, be fixed on rear valve body 2 and ton The connecting portion of bucket, in actual use, sealing cover 19 is mounted at the port of 1 side of front valve shell, is used for secondary partition or close Seal the circulation of ton liquid in bucket.

In actual use, the outside of front valve shell 1 is provided with screw thread, Gu cover piece 20 is screwed by screw thread with front valve shell 1 Together, so that sealing cover 19 be made to be connected between the end face of front valve shell and the inner circumferential of solid cover piece 20.

Preferably, the rear end discharge port of the rear valve body is cased with aluminium foil dustproof membrane, the design that aluminium foil dustproof membrane is recessed inwards, By observing the concave-convex effect of aluminium foil dustproof membrane, it can find whether ball valve is interior in time and leak phenomenon.As leaked in ball valve generation, aluminium foil Dustproof membrane will protrude.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims

1. a kind of hermetically sealed loose joint ball valve of high-performance, which is characterized in that including front valve shell (1), rear valve body (2) and driving handle (3), it is equipped with cavity between the front valve shell (1) and rear valve body (2), is equipped with sphere (21) in the cavity, the driving hand One end of handle (3) forms valve rod (4), and the valve rod (4) passes through the mesoporous and the sphere (21) of the front valve shell (1) upper end It is fixedly connected, the periphery of the valve rod (4) is fixed with sealing turning set (5), and the outer surface of sealing turning set (5) forms annular Lug boss (6), the valve rod (4) are rotated in the mesoporous of front valve shell (1) by the annular relief (6)；The valve The lower end of bar (4) is provided with limit chuck (8), and the sealing turning set (5) is mounted between limit chuck (8) and valve rod (4).

2. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 1, it is characterised in that: the sealing turning set (5) material is to wait fluoroplastics, and the equal fluoroplastics include TFE copolymer ETFE and fluorinated ethylene propylene copolymer FEP。

3. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 1, it is characterised in that: the front valve shell (1) Upper end forms mesoporous rotation section (7), and the valve rod (4) is mounted in the mesoporous rotation section (7), the annular relief (6) it is in contact with the inner circumferential of the mesoporous rotation section (7).

4. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 3, it is characterised in that: the mesoporous rotation section (7) upper end forms the boss (9) that the restricted driving handle (3) moves up.

5. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 1 or 4, it is characterised in that: the driving handle (3) one end is extended with limited block (10), and the side of the mesoporous rotation section (7) is extended with matched limited post (11)。

6. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 1, it is characterised in that: the sphere (21) and institute The end face for stating front valve shell (1) and rear valve body (2) connection is equipped with sealing ring (12), and the sphere (21) is in two sealing rings (12) Between rotate.

7. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 1 or 6, it is characterised in that: the front valve shell (1) It is directly connected to rear valve body (2) by sweat soldering, is offered the first mounting hole (13) on the front valve shell (1), the rear valve It is offered on body (2) the second mounting hole (14), fastener (15) reinforces institute by the first mounting hole (13), the second mounting hole (14) State the connection between front valve shell (1) and rear valve body (2).

8. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 1, it is characterised in that: opened on the sphere (21) Equipped with mounting groove (16), valve rod (4) bottom end is correspondingly provided with convex block (17), and driving handle (3) drives ball by convex block (17) Body (21) rotation.

9. the hermetically sealed loose joint ball valve of a kind of high-performance according to claim 1, it is characterised in that: the rear valve body (2) One end is socketed with pipe connecting piece (18), and pipe connecting piece (18) can be flexibly connected with IBC bung hole, and one end of the front valve shell (1) is equipped with Sealing cover (19), sealing cover (19) are fixedly mounted on the end face of the front valve shell (1) by solid cover piece (20).