CN214838541U

CN214838541U - Ball valve

Info

Publication number: CN214838541U
Application number: CN202120391275.8U
Authority: CN
Inventors: 高锡锋; 张玉彩; 林倩; 秦晓龙; 朱森源
Original assignee: Kaifeng High And Middle Pressure Valve Co ltd
Current assignee: Kaifeng High And Middle Pressure Valve Co ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-11-23
Anticipated expiration: 2031-02-22

Abstract

The utility model relates to a ball valve, including the valve body, the valve body endotheca is equipped with first disk seat, is provided with the ball valve case in the first disk seat, is provided with the valve rod on ball valve case, first disk seat and the valve body, the ball valve case and the first disk seat of valve rod one side laminate mutually, the first disk seat of valve rod opposite side in be provided with the second disk seat, the second valve seat closes on the one side and the ball valve case of ball valve case and laminates mutually, the cover is equipped with the fixed plate on the valve rod of valve body top, has seted up the round pin hub connection hole on the valve rod between fixed plate and the valve body, be provided with first round pin hub connection pole and second round pin hub connection pole on the bottom surface of fixed plate, be provided with first round pin axle on the bottom of first round pin hub connection pole, be provided with second round pin axle on the bottom of second round pin hub connection pole, second round pin axle and first round pin hub connection pole are mutually perpendicular. Realized carrying out further mechanical fastening to the open position and the closed position of ball valve, the utility model discloses adjust, convenient to use has extensive market prospect.

Description

Ball valve

Technical Field

The utility model relates to a ball valve field, concretely relates to ball valve.

Background

Ball valves, defined in standard GB/T21465-2008 "valve nomenclature" as: the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. Ball valve classification, including pneumatic ball valve, electric ball valve and manual ball valve.

Electric ball valve or pneumatic ball valve all utilize external power to drive the valve rod of ball valve and realize opening and closing of ball valve, and present stop device all is very simple and easy just realizes the injecing to the opening and the closed position of ball valve, but because system reason or operator's reason often can appear pneumatic ball valve or electric ball valve wrong order so that the maloperation appears in the ball valve thereby leads to production or incident, and current ball valve needle is to above-mentioned technical problem, is difficult to solve consequently and causes technical defect.

Disclosure of Invention

The utility model provides a simple structure can fix the ball valve of opening position and closed position to be not enough to prior art for overcome defect among the prior art.

The utility model adopts the technical proposal that: the utility model provides a ball valve, includes the valve body, the valve body endotheca is equipped with first disk seat, is provided with the ball valve case in the first disk seat, is provided with the valve rod on ball valve case, first disk seat and the valve body, the ball valve case and the first disk seat of valve rod one side laminate mutually, the first disk seat of valve rod opposite side in be provided with the second disk seat, the second valve seat closes on the one side and the ball valve case of ball valve case and laminates mutually, the cover is equipped with the fixed plate on the valve rod of valve body top, the round pin hub connection hole has been seted up on the valve rod between fixed plate and the valve body, be provided with first round pin axle connecting rod and second round pin axle connecting rod on the bottom of fixed plate, be provided with first round pin axle on the bottom of first round pin axle connecting rod, be provided with the second round pin axle on the bottom of second round pin axle connecting rod, second round pin axle and first round pin axle are mutually perpendicular.

Preferably, the bottom end of the valve rod is provided with a driving block, and the driving block is sleeved at the top of the valve core of the ball valve.

Preferably, the valve body on seted up the packing mounting groove, the packing mounting groove adopts the groove-shaped structure of seting up downwards along the valve body top surface, the packing mounting groove from upwards overlapping in proper order has graphite packing ring and packing clamping ring down.

Preferably, a first pin shaft connecting nut is arranged between the first pin shaft connecting rod and the first pin shaft, a second pin shaft connecting nut is arranged between the second pin shaft connecting rod and the second pin shaft, and the second pin shaft or the first pin shaft is movably sleeved on the pin shaft connecting hole.

Preferably, the valve rod in the fixed plate is provided with a limiting ring, a limiting ring gland is arranged above the limiting ring, the limiting ring gland is movably sleeved on the valve rod, and the limiting ring gland and the fixed plate are provided with first bolts.

Preferably, the section of the driving block adopts a non-circular structure, the driving block and the valve rod adopt an integrated structure, a driving block connecting groove is formed in the top of the ball valve core, and the driving block is movably sleeved on the driving block connecting groove.

Preferably, the valve body and the fixed plate between be provided with the packing clamp plate, the top of packing clamping ring adopts round platform shape tubular structure, has seted up the packing clamping ring spread groove on the bottom surface of packing clamping ring, packing clamping ring spread groove and packing clamping ring swing joint are provided with the second bolt on packing clamping ring and the valve body.

The utility model has the advantages that: first, the utility model discloses a set up second round pin axle and the round pin hub connection hole on the first round pin axle combination valve rod and realized opening the position and further mechanical fixation is advanced with the closed position, thereby solved because of pneumatic ball valve or electronic ball valve error command appear often can appear in system reason or operator's reason so that the maloperation appears in the ball valve and lead to production or incident.

Secondly, the utility model discloses an utilize first bolt fastening to combine the drive block at the spacing ring gland of fixed plate through the setting, the change of the valve rod of being convenient for has solved in case the valve rod goes wrong of traditional ball valve, dismantles the troublesome technique prejudice of directly scrapping even.

Finally, the utility model discloses a thereby be provided with the graphite packing ring in the sealing packing mounting groove and reduced the technical problem who seals the seepage that prevents the medium to the clearance between valve body and the valve rod.

The utility model has the advantages of simple structure, convenient operation, design benefit has improved work efficiency greatly, has fine social and economic benefits, is the product of easily using widely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, a ball valve comprises a valve body 1, a first valve seat 2 is sleeved in the valve body 1, a ball valve core 3 is arranged in the first valve seat 2, a valve rod 4 is arranged on the ball valve core 3, the first valve seat 2 and the valve body 1, a first valve seat sealing surface matched with the shape of part of the ball valve core 3 is arranged on the inner side of the first valve seat 2, a second valve seat 5 is arranged on the ball valve core 3 on one side of the first valve seat sealing surface, the second valve seat 5 is arranged in the first valve seat 2, the shape of one surface of the second valve seat 5 close to the ball valve core 3 is matched with the shape of part of the ball valve core 3, the first valve seat sealing surface and one surface of the second valve seat 5 close to the ball valve core 3 are respectively attached to the ball valve core 3, a fixing plate 6 is sleeved on the valve rod 4 above the valve body 1, a pin connecting hole 7 is arranged on the valve rod 4 between the fixing plate 6 and the valve body 1, a first pin shaft connecting rod 8 and a second pin shaft connecting rod 9 are arranged on the bottom surface of the fixing plate 6, a first pin shaft 10 is arranged on the bottom end of the first pin shaft connecting rod 8, a second pin shaft 11 is arranged on the bottom end of the second pin shaft connecting rod 9, the second pin shaft 11 is perpendicular to the first pin shaft 10, and the fixing plate 6 and the valve body 1 are fixed through a connecting plate.

The bottom end of the valve rod 4 is provided with a driving block 12, and the driving block 12 is sleeved at the top of the ball valve core 3. Valve rod 4 adopts round bar-shaped structure, the cross-section of drive block 12 adopt non-circular structure, drive block 12 adopts the massive structure that utilizes milling cutter to mill out a plane or a plurality of planes formation in the bottom of valve rod 4, drive block 12 and valve rod 4 adopt an organic whole structure, the cross-section that obtains of processing like this adopts non-circular structure's drive block 12, is more guaranteed in structural strength. The diameter of the circumscribed circle of the driving block 12 is not more than the diameter of the valve rod 4, the driving block 12 and the valve rod 4 adopt an integrated structure, the driving block connecting groove 21 is arranged at the top of the ball valve core 3, the driving block connecting groove 21 is matched with the driving block 12, and the driving block 12 is movably sleeved on the driving block connecting groove 21. The valve rod 4 in the fixed plate 6 on be provided with spacing ring 18, the top of spacing ring 18 is provided with spacing ring gland 19, be provided with spacing pipe 25 on the spacing ring 18, spacing pipe 25 suit is on spacing ring 18, spacing ring gland 19 and fixed plate 6, spacing ring 18 and spacing pipe 25 fixed connection, spacing pipe 25 and valve rod 4 swing joint, spacing ring 18 and spacing ring gland 19 all suit are on fixed plate 6, spacing ring gland 19 preferably adopts rectangular plate structure, spacing ring gland 19's circumscribed circle diameter is not less than spacing ring 18's external diameter, set up on the fixed plate 6 with spacing ring 18 and spacing ring gland 19 matched with step-like cell body, be provided with first bolt 20 on spacing ring gland 19 and the fixed plate 6. The valve rod 4 is further limited by arranging the limiting ring 18 and combining the limiting pipe 25, and meanwhile, the limiting ring 18 and the limiting pipe 25 are replaced conveniently by arranging the limiting ring gland 19 which is fixed on the fixing plate 6 by the first bolt 20.

Simultaneously in order to conveniently seal the clearance between valve body 1 and the valve rod 4 and thereby prevent the seepage of medium, valve body 1 on seted up sealing filler mounting groove 13, sealing filler mounting groove 13 adopts the downward trough-shaped structure of seting up along 1 top surface of valve body, from upwards overlapping in proper order graphite seal ring 14 and packing clamping ring 15 down sealing filler mounting groove 13. The graphite sealing ring 14 and the packing press ring 15 are sleeved on the valve rod 4. Thereby increase once more and lead to the seepage of medium in clearance between graphite seal ring 14 and the valve rod 4 as increasing graphite seal ring 14 along with this product live time and being extruded by valve rod 4, this product passes through valve body 1 and fixed plate 6 between be provided with packing clamp plate 22, the top of packing clamping ring 15 is located valve body 1's top, the top of packing clamping ring 15 adopts round platform shape tubular structure, packing clamping ring spread groove 23 has been seted up on the bottom surface of packing clamping ring 15, the shape of packing clamping ring spread groove 23 matches with the top shape of packing clamping ring 15, packing clamping ring spread groove 23 and packing clamping ring 15 swing joint, be provided with second bolt 24 on packing clamping ring 15 and the valve body 1. The number of the second bolts 24 is not less than two. The packing press ring 15 is in threaded connection with a second bolt 24, and the second bolt 24 is in threaded connection with the valve body 1. The packing pressing plate 22 is driven to drive the packing pressing ring 15 to move downwards by controlling the second bolt 24, and the packing pressing ring 15 compresses the graphite sealing ring 14 again, so that the gap between the graphite sealing ring 14 and the valve rod 4 is reduced, and the technical effect of sealing the medium again is achieved.

A first pin shaft connecting nut 16 is arranged between the first pin shaft connecting rod 8 and the first pin shaft 10, the first pin shaft connecting nut 16 is in threaded connection with the first pin shaft 10, a second pin shaft connecting nut 17 is arranged between the second pin shaft connecting rod 9 and the second pin shaft 11, the second pin shaft connecting nut 17 is in threaded connection with the second pin shaft 11, and the second pin shaft 11 or the first pin shaft 10 is movably sleeved on the pin shaft connecting hole 7. Because this product is under the state of opening or closing, one of second round pin axle 11 or first round pin axle 10 is in the connected state with round pin axle connecting hole 7, consequently in order to avoid losing of second round pin axle 11 or first round pin axle 10, this product is overcome through setting up first round pin axle coupling nut 16 and second round pin axle coupling nut 17.

The use method of the product is as follows: as shown in fig. 1, 2, and 3, first, when the product is in a closed state, the inner end of the first pin 10 is located inside the pin connecting hole 7, and if the product is to be opened, the inner end of the first pin 10 is first screwed to be located outside the pin connecting hole 7; then, drive electric actuator or pneumatic means drive valve rod 4 and rotate, and valve rod 4 drives ball valve case 3 rotatory, and when ball valve case 3 was in the biggest open mode, electric actuator or pneumatic means stop work, screwed up second round pin axle 11 this moment and realized further mechanical braking to the deepest of round pin hub connection hole 7.

Through the embodiment, the open position and the closed position of the ball valve are further mechanically fixed, and the problem that production or safety accidents are caused due to misoperation of the ball valve caused by the fact that a pneumatic ball valve or an electric ball valve frequently generates wrong commands due to system reasons or operator reasons is solved.

The utility model discloses a satisfy the ball valve that ball valve field worker needs, make the utility model discloses extensive market prospect has.

Claims

1. The utility model provides a ball valve, includes valve body (1), and first disk seat (2) are equipped with in valve body (1) endotheca, are provided with ball valve case (3) in first disk seat (2), are provided with valve rod (4) on ball valve case (3), first disk seat (2) and valve body (1), and ball valve case (3) and first disk seat (2) of valve rod (4) one side are laminated mutually, its characterized in that: the ball valve is characterized in that a second valve seat (5) is arranged in a first valve seat (2) on the other side of a valve rod (4), one surface, close to a ball valve core (3), of the second valve seat (5) is attached to the ball valve core (3), a fixing plate (6) is sleeved on the valve rod (4) above the valve body (1), a pin shaft connecting hole (7) is formed in the valve rod (4) between the fixing plate (6) and the valve body (1), a first pin shaft connecting rod (8) and a second pin shaft connecting rod (9) are arranged on the bottom surface of the fixing plate (6), a first pin shaft (10) is arranged on the bottom end of the first pin shaft connecting rod (8), a second pin shaft (11) is arranged on the bottom end of the second pin shaft connecting rod (9), and the second pin shaft (11) is perpendicular to the first pin shaft (10).

2. The ball valve according to claim 1, wherein: the bottom end of the valve rod (4) is provided with a driving block (12), and the driving block (12) is sleeved at the top of the ball valve core (3).

3. The ball valve according to claim 1, wherein: the valve body (1) on seted up sealing filler mounting groove (13), sealing filler mounting groove (13) adopt along the downward trough-shaped structure of seting up of valve body (1) top surface, from upwards overlapping in proper order graphite seal ring (14) and packing clamping ring (15) down in sealing filler mounting groove (13).

4. The ball valve according to claim 1, wherein: a first pin shaft connecting nut (16) is arranged between the first pin shaft connecting rod (8) and the first pin shaft (10), a second pin shaft connecting nut (17) is arranged between the second pin shaft connecting rod (9) and the second pin shaft (11), and the second pin shaft (11) or the first pin shaft (10) is movably sleeved on the pin shaft connecting hole (7).

5. The ball valve according to claim 1, wherein: the valve rod (4) in the fixing plate (6) is provided with a limiting ring (18), a limiting ring gland (19) is arranged above the limiting ring (18), the limiting ring gland (19) is movably sleeved on the valve rod (4), and the limiting ring gland (19) and the fixing plate (6) are provided with first bolts (20).

6. The ball valve of claim 2, wherein: the cross section of the driving block (12) adopts a non-circular structure, the driving block (12) and the valve rod (4) adopt an integrated structure, a driving block connecting groove (21) is formed in the top of the ball valve core (3), and the driving block (12) is movably sleeved on the driving block connecting groove (21).

7. The ball valve according to claim 3, wherein: valve body (1) and fixed plate (6) between be provided with packing clamp plate (22), the top of packing clamping ring (15) adopts round platform shape tubular structure, has seted up packing clamping ring spread groove (23) on the bottom surface of packing clamping ring (15), packing clamping ring spread groove (23) and packing clamping ring (15) swing joint are provided with second bolt (24) on packing clamping ring (15) and valve body (1).