CN111594622A

CN111594622A - Valve and use method thereof

Info

Publication number: CN111594622A
Application number: CN202010643031.4A
Authority: CN
Inventors: 左淑芳; 许泉滨; 许文迪
Original assignee: 左淑芳
Current assignee: Guangzhou Hongze Technology Co.,Ltd.
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-08-28
Anticipated expiration: 2040-07-06
Also published as: CN111594622B

Abstract

The invention discloses a valve and a using method thereof, the valve comprises an upper valve seat, a lower valve seat, a disc plate, a transmission rod and a valve rod, when the upper valve seat and the lower valve seat are spliced into a valve body, the disc plate rotates in the valve body by taking the valve rod as a shaft, the transmission rod is connected with the transmission rod through a gear assembly, a static lock assembly is arranged on the valve body, a dynamic lock assembly is arranged on the transmission rod, the dynamic lock assembly is connected with the static lock assembly and can lock the disc plate, so that the fluid flow is stable, when the upper valve seat and the lower valve seat are fixed outside a pipeline, the disc plate is fixed in the pipeline through a seat ring, the valve rod is fixedly connected with the disc plate after sequentially passing through the upper valve seat, the pipeline and the seat ring, and then two ends of the pipeline.

Description

Valve and use method thereof

Technical Field

The present invention relates to a plumbing fitting, and more particularly, it relates to a valve and a method of using a valve.

Background

Butterfly valves are used to control the flow of fluid, mainly acting as shut-off and throttling on pipes. The butterfly valve opening and closing piece is a disc-shaped plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the opening and closing or adjusting purpose is achieved.

The butterfly valve mainly comprises valve body, valve rod, dish board and sealing washer, and the butterfly valve is adjusted the flow size effect and is relatively weak, and when fluid flowed in the valve body, the dish board of slope can be strikeed to the fluid, and the dish board only brakes through the gear assembly that its top is connected, consequently, when the valve was in the state of opening for a long time, the dish board can be strikeed by the fluid and change original slope range, causes the flow error.

At present, valves on the market are installed between two pipelines, the connecting surfaces are more, the sealing effect is weaker, and fluid leakage is easily caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a valve with stable flow.

In order to achieve the purpose, the invention provides the following technical scheme:

a valve comprises a valve body, a disc plate, a transmission rod and a valve rod, wherein the valve body comprises an upper valve seat and a lower valve seat, the upper valve seat and the lower valve seat are spliced to form a cylinder for mounting the disc plate, a protective shell is mounted at the top end of the upper valve seat, a gear assembly is arranged in the protective shell, one end of the valve rod is fixedly connected with the disc plate, the other end of the valve rod penetrates through the upper valve seat and then is connected with the gear assembly in the protective shell, a hand wheel is connected with one end of the transmission rod, the other end of the transmission rod is connected with the gear assembly in the protective shell, a locking device is arranged between the outer wall of the protective shell and the transmission rod, and the locking device mainly comprises a static locking;

the static lock assembly comprises a lock shell arranged on the outer wall of the protective shell, and a base plate and a lock catch which are arranged in the lock shell, wherein the lock catch is composed of a plurality of compression springs and a plurality of lock rods with T-shaped cross sections, the plurality of compression spring lock rods and the plurality of lock rods are arranged in a one-to-one correspondence manner, one ends of the plurality of compression springs are all connected with the inner bottom wall of the lock shell, the other ends of the plurality of compression springs are all connected with one end with a large outer diameter of the lock rod, and one end with a small outer diameter of the plurality of lock rods penetrates through the base plate to;

move the lock subassembly and include tapered end, reset spring and the axle sleeve that the cross section is the T type, the axle sleeve cover is established on the transfer line to through the fix with screw, the one end that the axle sleeve external diameter is big is established to the stiff end, the one end that the axle sleeve external diameter is little is established to the slip end, the tapered end cover is established on the slip end, reset spring overlaps and establishes at the slip end, and its one end is connected with the tapered end, and the other end is connected with the stiff end, the relative reset spring's of tapered end other end is equipped with the locking piece, the spout has been seted up to the pipe wall of slip end.

The invention is further configured to: the gear assembly comprises a first bevel gear arranged on the valve rod and a second bevel gear arranged on the transmission rod, the first bevel gear and the second bevel gear are identical in shape, a plurality of teeth on the first bevel gear are distributed in a fan shape, and two teeth on the outermost side form an included angle of 90 degrees.

The invention is further configured to: the top of valve rod is connected with the montant, the top of montant is connected with the pointer, the pointer sets up the outer roof position at the protective case, the roof of protective case inwards caves in and forms circular recess, the pointer is placed in the recess, the lens that transparent plastic made is passed through at the top of recess is sealed.

The invention is further configured to: the reset spring overcoat is equipped with the bellows, the one end and the stiff end of bellows are connected, the other end and the tapered end of bellows are connected.

The invention is further configured to: the sliding end of the shaft sleeve is provided with an elastic buckle, the lock head is provided with a through hole extending from the outer wall to the inner wall, the elastic buckle is used for being clamped in the through hole, an internal thread is arranged in the through hole and close to the outer wall of the lock head, a brake spring and a pressure rod are installed in the through hole, the pressure rod is provided with an external thread, the brake spring is sleeved on the pressure rod, and the pressure rod is screwed into the through hole and then movably connected with the lock head.

The invention has the advantages that in the initial state, the dynamic lock component is connected with the static lock component, so that the transmission rod is difficult to rotate; when the dish plate is required to rotate, the movable locking assembly is moved to be separated from the static locking assembly, and at the moment, the transmission rod can normally rotate.

Aiming at the defects in the prior art, the invention aims to provide a valve with a better sealing effect.

a valve using method comprises a valve body, a disc plate and a valve rod, wherein the valve body comprises an upper valve seat, a lower valve seat and a seat ring, a positioning hole is formed in the top of the seat ring, and a through hole is formed in the pipe wall of a pipeline;

the disc plate and the seat ring are installed in the pipeline together until the positioning hole on the seat ring is concentric with the through hole on the pipeline;

and a sealing ring is arranged in the through hole of the pipeline, the bottom of the sealing seat ring is sunk into the positioning hole, the valve rod is sequentially inserted into the upper valve seat, the pipeline and the seat ring and then fixedly connected with the disc plate, and the upper valve seat and the lower valve seat are spliced and fixed outside the pipeline.

The invention is further configured to: the top of going up the disk seat is equipped with the axle center hole, at the downthehole installation bearing in axle center, the valve rod includes first step face and second step face, the external diameter of first step face is less than the external diameter of second step face, and the bottom and the dish board of second step face are connected, the bearing housing is established on first step face to the inner circle and the second step face of bearing offset, go up the top of disk seat and install the briquetting that is used for locking the bearing outer lane.

The invention is further configured to: the cross section of the inner ring and the cross section of the outer ring of the bearing are both L-shaped.

The invention is further configured to: the upper valve seat is fixedly connected with the lower valve seat through a screw rod, a power-assisted spring is arranged between the upper valve seat and the lower valve seat, and the power-assisted spring is sleeved on the screw rod.

The invention is further configured to: the top and the bottom of seat circle have all been seted up U type groove, the top and the bottom of dish board all are equipped with the boss, the boss of dish board is placed in U type groove, the locating hole communicates with each other with the U type groove at seat circle top, the top boss and the locating hole of dish board are concentric.

The invention has the advantages that the sealing performance of the valve can be improved by installing the disc plate in the pipeline and welding the pipeline provided with the disc plate and other pipelines into a whole.

Drawings

FIG. 1 is an assembly view of a valve according to example 1;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of the locking device;

FIG. 4 is a schematic view of a first bevel gear;

FIG. 5 is an assembly view of the valve of example 2;

FIG. 6 is a schematic view of the valve stem coupled to the disk plate;

fig. 7 is a schematic view of a bearing.

In the figure: 1. an upper valve seat; 2. a lower valve seat; 3. a plate; 4. a transmission rod; 5. a valve stem; 6. protecting the shell; 7. a lock case; 8. a substrate; 9. a compression spring; 10. a lock lever; 11. a lock head; 12. a locking block; 13. a return spring; 14. a shaft sleeve; 15. a first bevel gear; 16. a bellows; 17. elastic buckle; 18. a brake spring; 19. a pressure lever; 20. a seat ring; 21. a bearing; 22. and a power-assisted spring.

Detailed Description

Reference is made to the further description of a valve and method of use embodiments of the valve of the present invention.

The valve of the invention has two installation modes:

example 1 the valve was installed between two pipes with the disc 3 in the valve body.

Referring to fig. 1, a valve comprises a valve body, a disc plate 3, a transmission rod 4 and a valve rod 5, wherein the valve body comprises an upper valve seat 1 and a lower valve seat 2, the upper valve seat 1 and the lower valve seat 2 are spliced to form a cylinder for mounting the disc plate 3, a protective shell 6 is installed at the top end of the upper valve seat 1, a gear assembly is arranged in the protective shell 6, one end of the valve rod 5 is fixedly connected with the disc plate 3, the other end of the valve rod 5 penetrates through the upper valve seat 1 and then is connected with the gear assembly in the protective shell 6, one end of the transmission rod 4 is connected with a hand wheel, the other end of the transmission rod 4 is connected with the gear assembly in the protective shell 6, a locking device is arranged between the outer wall of the protective shell 6 and the transmission rod 4, the locking device mainly comprises a static locking assembly and a dynamic locking assembly, the dynamic locking assembly is connected with the static locking assembly at, therefore, the disc plate 3 connected to the valve rod 5 is difficult to rotate, so that the disc plate 3 is prevented from deflecting when fluid flows, and the effect of flow stability is achieved; when the dish plate 3 is required to rotate, the movable locking component is moved to be separated from the static locking component, and at the moment, the transmission rod 4 can normally rotate.

Referring to fig. 2 and 3, the static lock assembly comprises a lock shell 7 arranged on the outer wall of a protective shell 6, and a base plate 8 and a lock catch which are arranged in the lock shell 7, wherein the lock catch is composed of a plurality of compression springs 9 and a plurality of lock rods 10 with T-shaped cross sections, the plurality of compression springs 9 are arranged in one-to-one correspondence with the plurality of lock rods 10, one ends of the plurality of compression springs 9 are connected with the inner bottom wall of the lock shell 7, the other ends of the plurality of compression springs 9 are connected with one end with a large outer diameter of the lock rod 10, and one end with a small outer diameter of the plurality of lock rods 10 penetrates through the base plate 8 to; the movable lock assembly comprises a lock head 11, a reset spring 13 and a shaft sleeve 14 with a T-shaped cross section, the shaft sleeve 14 is sleeved on the transmission rod 4 and fixed through screws, one end with a large outer diameter of the shaft sleeve 14 is set as a fixed end, one end with a small outer diameter of the shaft sleeve 14 is set as a sliding end, the lock head 11 is sleeved on the sliding end, the reset spring 13 is sleeved on the sliding end, one end of the reset spring is connected with the lock head 11, the other end of the reset spring is connected with the fixed end, the other end of the lock head 11, opposite to the reset spring 13, is provided with a lock block 12.

When the movable lock component is connected with the static lock component, the lock block 12 on the lock head 11 sinks into a plurality of lock rods 10, at the moment, the lock rods 10 which are abutted against the lock block 12 are extruded, the compression spring 9 generates elastic pressure change, the states of other lock rods 10 which are adjacent to the extruded lock rods 10 are unchanged, the rotation of the lock block 12 is limited, when the lock head 11 moves along the sliding chute back to the lock shell 7 direction, the extruded lock rods 10 are restored to the initial state under the action of the compression spring 9, at the moment, the reset spring 13 generates elastic pressure change, the lock block 12 is separated from the braking of the lock rods 10 and can rotate along with the transmission rod 4, after the disc plate 3 is adjusted to the required angle by the transmission rod 4, the reset spring 13 restores the deformation to push the lock head 11 to the lock shell 7 direction, the braking effect is realized again, the fluid flow in the valve body is stable, and the change of the angle of the disc plate 3 caused by mistaken, and because the locking rods 10 are distributed in a ring shape, multi-angle locking can be achieved, and the more the locking rods 10 are, the more the locking angles can be.

Referring to fig. 2 and 3, a bellows 16 is sleeved outside the return spring 13, one end of the bellows 16 is connected to the fixed end, and the other end of the bellows 16 is connected to the lock head 11. The sliding end of the shaft sleeve 14 is provided with an elastic buckle 17, the lock head 11 is provided with a through hole extending from the outer wall to the inner wall, the elastic buckle 17 is used for being clamped in the through hole, an internal thread is arranged in the through hole and close to the outer wall of the lock head 11, a brake spring 18 and a pressure rod 19 are arranged in the through hole, the pressure rod 19 is provided with an external thread, the brake spring 18 is sleeved on the pressure rod 19, and the pressure rod 19 is movably connected with the lock head 11 after being screwed into the.

The arrangement of the corrugated pipe 16 is used for protecting the return spring 13, so that the dustproof effect is achieved, and the whole valve is attractive and elegant. The setting of elasticity buckle 17 is used for tapered end 11 to release both hands after leaving the static lock subassembly, and tapered end 11 moves to elasticity buckle 17 position, and elasticity buckle 17 joint is in the through-hole, fixes tapered end 11, when needing to remove tapered end 11, presses down the depression bar 19 of through-hole top, and the bottom of depression bar 19 promote elasticity buckle 17 make it break away from in the through-hole can, later, depression bar 19 resumes initial condition at the effect of braking spring 18.

Referring to fig. 4, the gear assembly comprises a first bevel gear 15 mounted on the valve stem 5 and a second bevel gear mounted on the transmission rod 4, the first bevel gear 15 and the second bevel gear have the same shape, a plurality of teeth on the first bevel gear 15 are distributed in a fan shape, and two outermost teeth form an included angle of 90 °. The teeth on the first bevel gear 15 and the second bevel gear are distributed in a 90-degree sector, which is used to avoid torsion overload and reduce the service life of the valve, because the rotation angle of the disc plate 3 in the valve body is 0-90 degrees, when the valve is closed, a sealing ring abutting against the disc plate 3 is arranged in the valve body, when the valve is opened, a limiting block is arranged in the valve body, so that the disc plate 3 can rotate to 90 degrees at most, the disc plate 3 in the valve body can not directly observe the rotation angle through eyes, when the disc plate 3 rotates to 0 degree or 90 degrees, an operator always continues to rotate the transmission rod 4, the sealing ring, the limiting block and the gear excessively bear the external force for many times, the damage is accelerated, the first bevel gear 15 is meshed with the second bevel gear, when the transmission rod 4 is rotated, the disc plate 3 stops rotating to 90 degrees, even if the transmission rod 4 is continuously rotated, the transmission rod 4 only completes idle rotation, when the resistance on the transmission rod 4 is suddenly small, the operator is informed that the disc 3 has rotated to the maximum angle, and the rotation of the transmission rod 4 is stopped.

The top of valve rod 5 is connected with the montant, and the top of montant is connected with the pointer, and the pointer setting is at the outer top wall position of protective case 6, and the roof of protective case 6 is inside sunken to form circular recess, and the pointer is placed in the recess, and the lens that transparent plastic made is passed through at the top of recess is sealed. The setting of pointer is used for audio-visual discernment dish plate 3 to be located the turned angle in the valve body, conveniently adjusts the flow, adjusts the flow according to the pointer moreover and also can be more accurate, and the pointer is placed in the recess to it is sealed through the lens, play the use of protection pointer.

Example 2, the plate 3 was first installed in a nipple, which was then welded between two pipes.

Referring to fig. 5 and 6, the valve using method comprises a valve body, a disc plate 3, a seat ring 20 and a valve rod 5, wherein the valve body comprises an upper valve seat 1 and a lower valve seat 2, a positioning hole is formed in the top of the seat ring 20, and a through hole is formed in the pipe wall of a pipeline; the disc plate 3 and the seat ring 20 are installed in the pipeline together until the positioning hole on the seat ring 20 is concentric with the through hole on the pipeline; the sealing ring is arranged in a through hole of a pipeline, the bottom of the sealing seat ring 20 sinks into a positioning hole, the valve rod 5 is sequentially inserted into the upper valve seat 1, the pipeline and the seat ring 20 and then fixedly connected with the disc plate 3, the upper valve seat 1 and the lower valve seat 2 are spliced and fixed outside the pipeline, the upper valve seat 1 and the lower valve seat 2 are fixedly connected through a screw, a power-assisted spring 22 is arranged between the upper valve seat 1 and the lower valve seat 2, and the power-assisted spring 22 is sleeved on the screw.

Install dish board 3 in the pipeline, the pipeline that will install dish board 3 again is as an organic whole with other pipeline welding, can improve the leakproofness of valve. U type groove has all been seted up to the top and the bottom of seat circle 20, and the top and the bottom of dish board 3 all are equipped with the boss, and the boss of dish board 3 is placed in U type groove, and the locating hole communicates with each other with the U type groove at seat circle 20 top, and the top boss and the locating hole of dish board 3 are concentric. The setting of seat circle 20 makes things convenient for the installation and the sealed effect of dish board 3, and seat circle 20, upper valve seat 1 and lower disk seat 2 are all made by metal material, and when the pipeline chooseed for use the rubber material, because the thermal expansion cold contraction rate of rubber is higher than metal material, and helping hand spring 22's setting can effectual buffering rubber pipeline inflation and shrink.

The top of going up disk seat 1 is equipped with the axle center hole, at the downthehole installation bearing 21 of axle center, valve rod 5 includes first step face and second step face, the external diameter of first step face is less than the external diameter of second step face, the bottom and the dish board 3 of second step face are connected, bearing 21 cover is established on first step face to the inner circle and the second step face of bearing 21 offset, go up the top of disk seat 1 and install the briquetting that is used for locking bearing 21 outer lane, the inner circle cross section and the outer lane cross section of bearing 21 are the L type (refer to fig. 7 and show). The bearing 21 is arranged for rotation of the valve rod 5 on the valve body on one hand and for fixing the valve rod 5 with the valve body on the other hand, and looseness between the valve rod 5 and the disc plate 3 is prevented.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a valve, includes valve body, dish board (3), transfer line (4) and valve rod (5), the valve body includes disk seat (1) and lower disk seat (2), go up disk seat (1) and constitute the drum that is used for installing dish board (3) with lower disk seat (2) concatenation, protective case (6) are installed on the top of going up disk seat (1), be equipped with the gear assembly in protective case (6), the one end and the dish board (3) fixed connection of valve rod (5), the other end of valve rod (5) is passed and is connected with the gear assembly in protective case (6) behind disk seat (1), the one end of transfer line (4) is connected with the hand wheel, the other end and the gear assembly in protective case (6) of transfer line (4) are connected, characterized by: a locking device is arranged between the outer wall of the protective shell (6) and the transmission rod (4), and the locking device mainly comprises a static locking component and a dynamic locking component;

the static lock assembly comprises a lock shell (7) arranged on the outer wall of a protective shell (6), and a base plate (8) and a lock catch which are arranged in the lock shell (7), wherein the lock catch is composed of a plurality of compression springs (9) and a plurality of lock rods (10) with T-shaped cross sections, the lock rods (10) of the compression springs (9) are arranged in a one-to-one correspondence manner with the lock rods (10), one ends of the compression springs (9) are connected with the inner bottom wall of the lock shell (7), the other ends of the compression springs (9) are connected with one end with a large outer diameter of the lock rod (10), and one end with a small outer diameter of the lock rods (10) penetrates through the base plate (8) to form a braking end;

move the lock subassembly and include tapered end (11), reset spring (13) and axle sleeve (14) that the cross section is the T type, axle sleeve (14) cover is established on transfer line (4) to through the fix with screw, axle sleeve (14) external diameter is big one end is established to the stiff end, axle sleeve (14) external diameter is little one end is established to the slip end, tapered end (11) cover is established on the slip end, reset spring (13) cover is established at the slip end, and its one end is connected with tapered end (11), and the other end is connected with stiff end, the other end of tapered end (11) relative reset spring (13) is equipped with locking piece (12), the spout has been seted up to the pipe wall of slip end, be equipped with the slider on tapered end (11), the slider removes in the spout.

2. The valve of claim 1, wherein: the gear assembly comprises a first bevel gear (15) arranged on the valve rod (5) and a second bevel gear arranged on the transmission rod (4), the first bevel gear (15) and the second bevel gear are identical in shape, a plurality of teeth on the first bevel gear (15) are distributed in a fan shape, and two teeth on the outermost side form an included angle of 90 degrees.

3. The valve of claim 2, wherein: the top of valve rod (5) is connected with the montant, the top of montant is connected with the pointer, the pointer sets up the outer roof position at protective housing (6), the roof of protective housing (6) is inside sunken to form circular recess, the pointer is placed in the recess, the lens that transparent plastic made is passed through at the top of recess is sealed.

4. The valve of claim 3, wherein: the outer sleeve of the reset spring (13) is provided with a corrugated pipe (16), one end of the corrugated pipe (16) is connected with the fixed end, and the other end of the corrugated pipe (16) is connected with the lock head (11).

5. The valve of claim 4, wherein: the sliding end of axle sleeve (14) is equipped with elasticity buckle (17), be equipped with the through-hole that extends to the inner wall from the outer wall on tapered end (11), elasticity buckle (17) are arranged in the through-hole in the joint, it is equipped with the internal thread to be close to tapered end (11) outer wall position in the through-hole, installs brake spring (18) and depression bar (19) in the through-hole, depression bar (19) are equipped with the external screw thread, brake spring (18) cover is established on depression bar (19), in depression bar (19) screw in through-hole back and tapered end (11) swing joint.

6. The valve using method comprises a valve body, a disc plate (3) and a valve rod (5), wherein the valve body comprises an upper valve seat (1) and a lower valve seat (2), and is characterized in that: the pipeline positioning device further comprises a seat ring (20), wherein a positioning hole is formed in the top of the seat ring (20), and a through hole is formed in the pipe wall of the pipeline;

the disc plate (3) and the seat ring (20) are installed in the pipeline together until the positioning hole on the seat ring (20) is concentric with the through hole on the pipeline;

the sealing ring is arranged in the through hole of the pipeline, the bottom of the sealing seat ring (20) is sunk into the positioning hole, the valve rod (5) is sequentially inserted into the upper valve seat (1), the pipeline and the seat ring (20) and then fixedly connected with the disc plate (3), and the upper valve seat (1) and the lower valve seat (2) are spliced and fixed outside the pipeline.

7. The method of claim 6, wherein: go up the top of disk seat (1) and be equipped with the axle center hole, at the downthehole installation bearing (21) of axle center, valve rod (5) are including first step face and second step face, the external diameter of first step face is less than the external diameter of second step face, and the bottom and the dish board (3) of second step face are connected, bearing (21) cover is established on first step face to the inner circle and the second step face of bearing (21) offset, go up the top of disk seat (1) and install the briquetting that is used for locking bearing (21) outer lane.

8. The method of claim 7, wherein: the cross section of the inner ring and the cross section of the outer ring of the bearing (21) are both L-shaped.

9. The method of claim 8, wherein: the upper valve seat (1) is fixedly connected with the lower valve seat (2) through a screw, a power-assisted spring (22) is arranged between the upper valve seat (1) and the lower valve seat (2), and the power-assisted spring (22) is sleeved on the screw.

10. The method of claim 9, further comprising: u type groove has all been seted up to the top and the bottom of seat circle (20), the top and the bottom of dish board (3) all are equipped with the boss, the boss of dish board (3) is placed in U type groove, the locating hole communicates with each other with the U type groove at seat circle (20) top, the top boss and the locating hole of dish board (3) are concentric.