CN209213057U - A kind of seal ball-valve with long service life - Google Patents

Abstract

The utility model discloses a kind of seal ball-valves with long service life, including valve body and valve deck, upper valve rod is installed on valve deck, upper valve rod is equipped with the sphere rotated with upper valve rod, valve seat is installed in valve body, mounting hole is equipped with positioned at the lower section of sphere on valve body, the lower valve rod for wearing goal body is equipped in mounting hole, valve outer wall is equipped with the lower cover that lid sets mounting hole, the one side of lower cover back to valve body is equipped with screw hole, screw hole internal screw thread is connected with stud, the one side of lower cover back to valve body is equipped with the mounting groove that inlet valve body is axially worn along stud, mounting groove is connected to close to the one side wall of screw hole with screw hole, the periphery wall of stud is equipped with limit hole, sliding is provided with adaptation therewith in mounting groove and length is greater than the limit inserted block of limit hole depth, it is equipped with and driving limit inserted block mobile with limit inserted block in mounting groove and plugs the first elastic component into limit hole.The utility model has the following advantages that and effect: the utility model can reach longer service life and have better seal effect.

Description

A kind of seal ball-valve with long service life

Technical field

The utility model relates to a kind of valve, in particular to a kind of seal ball-valve with long service life.

Background technique

Ball valve is widely used in petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel The industries such as iron occupy very important status in national economy.It has the movement being rotated by 90 °, and faucet body is sphere, is had Circular through hole or channel pass through its axis.

Existing ball valve mainly includes valve body, valve deck, valve seat, sphere, upper valve rod, lower valve rod and lower cover, sphere with Valve seat is all set in body cavity and sealing is realized in cooperation between the two；Upper valve rod wears inlet valve body inner cavity for driving from valve deck Dynamic sphere rotation, lower valve rod are mounted on valve body and are located at the lower section of sphere and wear goal body, limit to the sphere of setting.Under End cap is set to the lower section that valve body is located at lower valve rod, and the position for being used to install lower valve rod to valve body is sealed, and the prior art Middle realization lower cover is realized with the fixed form of valve body between the two often by bolt.But since the fluid media (medium) of high speed exists High-frequency resonance can be generated when across ball valve, resonant interaction is just easy to using bolt in the bolt of fixed lower cover During loosen.Also have in the prior art and goes to prevent bolt from pine occurs by way of spring washer is arranged on bolt It is dynamic, but this kind of mode during practice, it can be seen that spring washer cannot reach fine in face of this kind of vibration frequency Anti-loosing effect, bolt still can loosen during being used for a long time, to influence the service life of ball valve.

Utility model content

The purpose of the utility model is to provide a kind of seal ball-valve with long service life, the seal ball-valves with long service life It can effectively prevent the lower cover generated by resonance from falling off problem, to promote the service life of ball valve.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of with long service life Seal ball-valve including valve body and is set to the valve deck of valve body, is equipped with the upper valve rod worn inside inlet valve body on the valve deck, One end that the upper valve rod is located at valve inner is equipped with the sphere rotated with upper valve rod, is equipped with cooperation sphere in the valve body Realize the valve seat of sealing, the lower section that sphere is located on the valve body is equipped with mounting hole, is equipped in the mounting hole and wears goal body Lower valve rod, the valve outer wall is equipped with lid and sets the lower cover of mounting hole, and the one side of the lower cover back to valve body is equipped with along peace Dress hole axially wears the screw hole of inlet valve body, and the center of circle of the screw hole around mounting hole is provided at least two, in the screw hole It is threaded with stud, the one side of the lower cover back to valve body is equipped with the mounting groove that inlet valve body is axially worn along stud, described Mounting groove is connected to close to the one side wall of screw hole with screw hole, and the periphery wall of the stud is equipped with limit hole, sliding in the mounting groove Be provided with adaptation therewith and length be greater than the limit inserted block of limit hole depth, be equipped in the mounting groove it is mobile with limit inserted block and Driving limit inserted block plugs the first elastic component into limit hole, and the lower cover is equipped with the sealing group of sealing installation channel opening Part.

By using above-mentioned technical proposal, after lower valve rod is installed into mounting hole, lower cover is covered on to the opening of mounting hole Place, stud wears into screw hole and is threadedly coupled therewith, to realize that lower cover is the fixation on valve body.In the mistake of rotation stud The opening direction that limit hole is observed in journey, stops operating when the opening of limit hole is towards mounting groove, will limit inserted block and first Elastic component is put into mounting groove, and when limit inserted block slides onto the position corresponding to limit hole, limit inserted block is in the first elasticity It plugs under the action of part into limit hole, since the side wall that limit inserted block is mounted slot is contradicted, so that plugging into limit hole Limit inserted block can play position-limiting action to stud, prevent stud from loosening in vibration, make lower cover in permanent vibration In will not fall off, to promote the service life of ball valve, and carried out by opening of the setting of seal assembly to mounting groove Sealing.

It is further arranged to: being located at the position of limit inserted block and mounting groove between one end face of sphere in the mounting groove The position being located between limit inserted block and seal assembly equipped with the second elastic component, in the mounting groove is equipped with third elastic component.

By using above-mentioned technical proposal, the elastic force of the second elastic component is in a phase with the elastic force of third elastic component State and two elastic forces to balance are respectively applied to the opposite two sides of limit inserted block, so that in limit inserted block between the two It can be enable to limit the state that more stable being maintained at of inserted block is inserted in limit hole, prevent by the active force of a relative equilibrium Only limit inserted block detaches limit hole when by applied external force.

Be further arranged to: the seal assembly includes magnetic part and the positioning pluging rod for being fixedly arranged on magnetic part, the magnetic Property part absorption be fixed on lower cover and positioning pluging rod is plugged into mounting groove.

By using above-mentioned technical proposal, positioning pluging rod plugs the magnetic part being fixed on lower cover into mounting groove to absorption It fixes, magnetic part is prevented to be subjected to displacement because of vibration.

Be further arranged to: first elastic component is spring, and an end face of limit inserted block back to the stud offers Jack, first elastic component are plugged into jack and are adhesively fixed between jack.

By using above-mentioned technical proposal, the setting of jack limits the first elastic component, and by being adhesively fixed It is mobile with limit inserted block that mode enables the first elastic component more stable.

Be further arranged to: the orthographic projection position that the stud end face is located at limit hole is equipped with instruction punctuate, the lower end Sealing ring is equipped between lid and valve body.

By using above-mentioned technical proposal, staff, can be clear by the position of observation instruction punctuate when rotating stud The opening direction for knowing limit hole of Chu, the easy operation of staff simultaneously make to be able to achieve between limit hole and mounting groove more preferable Alignment, the setting of sealing ring promotes lower cover and the leakproofness of valve body between the two, prevents leakage.

In conclusion the utility model has the following beneficial effects: the utility model can reach longer service life and With better seal effect.

Detailed description of the invention

Fig. 1 is the cross-sectional view of embodiment；

Fig. 2 is the portion A enlarged drawing in Fig. 1.

In figure: 1, valve body；2, valve deck；3, upper valve rod；4, sphere；5, valve seat；6, mounting hole；7, lower valve rod；8, lower cover； 9, screw hole；10, stud；11, mounting groove；12, limit hole；13, inserted block is limited；14, the first elastic component；15, seal assembly；151, Magnetic part；152, positioning pluging rod；16, the second elastic component；17, third elastic component；18, jack；19, punctuate is indicated；20, it seals Circle.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

With reference to Fig. 1 and Fig. 2, a kind of seal ball-valve with long service life, including valve body 1 is fixedly installed with valve above valve body 1 Lid 2, the upper valve rod 3 worn inside inlet valve body 1 is equipped on valve deck 2, and upper valve rod 3 is located at one end inside valve body 1 and is equipped with upper The sphere 4 that valve rod 3 rotates, valve body 1 are internally provided with the valve seat 5 that cooperation sphere 4 realizes sealing.1 outer wall of valve body is being located at sphere 4 just The position of lower section offers mounting hole 6, the lower valve rod 7 for wearing goal body 4 is equipped in mounting hole 6, between lower valve rod 7 and sphere 4 It is rotatably assorted so that sphere 4 rotates under the drive of upper valve rod 3 around the center of circle of lower valve rod 7, and lower valve rod 7 and upper valve rod 3 Between be coaxially disposed, upper valve rod 3 can pass through the handwheel (not shown) of fixed setting drive upper valve rod 3 rotate.

The lower section that valve body 1 is located at mounting hole 6 is equipped with the lower cover 8 that lid sets mounting hole 6, is equipped between lower cover 8 and valve body 1 Sealing ring 20, lower cover 8 are offered on one side back to valve body 1 along the axial screw hole 9 for wearing inlet valve body 1 of mounting hole 6, and screw hole 9 encloses The center of circle for being around in mounting hole 6 is provided at least two, and 9 internal screw thread of screw hole is connected with stud 10, and the end face of stud 10 offers one Word slot enables screwdriver that stud 10 to be driven to rotate.The one side of lower cover 8 back to valve body 1 is equipped with axially to be worn into valve along stud 10 The mounting groove 11 of body 1, mounting groove 11 are connected to close to the one side wall of screw hole 9 with the side wall of screw hole 9, and the periphery wall of stud 10 offers Limit hole 12, the interior sliding of mounting groove 11 are provided with adaptation therewith and limit inserted block 13 of the length greater than 12 length of limit hole, limit One end face of inserted block 13 back to stud 10 offers jack 18, and the first elastic component 14 and the first elastic component 14 are inserted in jack 18 By glue Nian Jie realization fixation between jack 18, the first elastic component 14 can be spring.

Lower cover 8 is equipped with the seal assembly 15 that sealing mounting groove 11 is open, be located in mounting groove 11 limit inserted block 13 with The position between an end face of sphere 4 of mounting groove 11 is equipped with the second elastic component 16, and limit inserted block 13 is located in mounting groove 11 Position between seal assembly 15 is equipped with third elastic component 17, and the second elastic component 16 and third elastic component 17 are spring, and The second elastic component 16 being arranged is almost the same with the elastic force that 17 pairs of third elastic component limit the application of inserted block 13.Seal assembly 15 wraps It includes magnetic part 151 and is fixedly arranged on the positioning pluging rod 152 of magnetic part 151, magnetic part 151 can be neodium magnet and positioning pluging rod 152 It is bonded and fixed to neodium magnet by glue, lower cover 8 is fixed in the absorption of magnetic part 151 and positioning pluging rod 152 is plugged into mounting groove 11, the material of lower cover 8 is iron.The orthographic projection position that 10 end face of stud is located at limit hole 12 is equipped with instruction punctuate 19, indicateing arm Point 19 can be realized by way of laser printing or paint application.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (5)

1. a kind of seal ball-valve with long service life, including valve body (1) and it is set to the valve deck (2) of valve body (1), the valve deck (2) it is equipped on and wears the internal upper valve rod (3) of inlet valve body (1), the upper valve rod (3) is located at the internal one end peace of valve body (1) Equipped with the sphere (4) rotated with upper valve rod (3), the valve seat (5) that sealing is realized in cooperation sphere (4) is installed in the valve body (1), Lower section on the valve body (1) positioned at sphere (4) is equipped with mounting hole (6), is equipped in the mounting hole (6) and wears goal body (4) Lower valve rod (7), valve body (1) outer wall is equipped with lid and sets the lower covers (8) of mounting hole (6), it is characterised in that: the lower cover (8) screw hole (9) that inlet valve body (1) is axially worn along mounting hole (6) is equipped with back to the one side of valve body (1), the screw hole (9) surrounds The center of circle of mounting hole (6) is provided at least two, screw hole (9) internal screw thread is connected with stud (10), the lower cover (8) One side back to valve body (1) is equipped with along the axial mounting groove (11) for wearing inlet valve body (1) of stud (10), and the mounting groove (11) is leaned on The one side wall of nearly screw hole (9) is connected to screw hole (9), and the periphery wall of the stud (10) is equipped with limit hole (12), the mounting groove (11) sliding is provided with adaptation therewith in and length is greater than the limit inserted block (13) of limit hole (12) depth, the mounting groove (11) It is interior to be equipped with mobile with limit inserted block (13) and limit inserted block (13) is driven to plug the first elastic component (14) into limit hole (12), institute State the seal assembly (15) that lower cover (8) are equipped with sealing mounting groove (11) opening.

2. a kind of seal ball-valve with long service life according to claim 1, it is characterised in that: in the mounting groove (11) The second elastic component (16) are equipped with positioned at the position of limit inserted block (13) and mounting groove (11) between (4) one end face of sphere, institute It states the position being located between limit inserted block (13) and seal assembly (15) in mounting groove (11) and is equipped with third elastic component (17).

3. a kind of seal ball-valve with long service life according to claim 1, it is characterised in that: the seal assembly (15) Including magnetic part (151) and it is fixedly arranged on the positioning pluging rods (152) of magnetic part (151), magnetic part (151) absorption is fixed on Lower cover (8) and positioning pluging rod (152) are plugged into mounting groove (11).

A kind of seal ball-valve with long service life described in 4., it is characterised in that: first elastic component (14) is spring, described One end face of limit inserted block (13) back to stud (10) offers jack (18), and first elastic component (14) plugs into jack (18) and between jack (18) it is adhesively fixed.

5. a kind of seal ball-valve with long service life according to claim 1, it is characterised in that: stud (10) end face It is equipped with instruction punctuate (19) positioned at the orthographic projection position of limit hole (12), sealing is equipped between the lower cover (8) and valve body (1) It encloses (20).