CN218177981U

CN218177981U - Lever type ball valve internal part quick assembly disassembly device

Info

Publication number: CN218177981U
Application number: CN202222162886.2U
Authority: CN
Inventors: 陈忠鑫; 江云富; 洪进元; 吴健伟; 丁运博
Original assignee: Shanghai Eho Valve Co ltd
Current assignee: Shanghai Eho Valve Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-12-30
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses a lever ball valve internals quick assembly disassembly device, which comprises a support, it is provided with the main shaft to run through in the support, be provided with two sets of dismouting subassemblies on the main shaft, every group the dismouting subassembly all includes lever, pull rod and jib, the upper portion cover of lever is established on the main shaft and can be followed the main shaft rotation, the top swing joint of pull rod and lever, the bottom fixed connection of jib and lever, the one end that the lever was kept away from to the jib is provided with fixed protrusion. The utility model applies smaller pulling force and displacement on the pull rod connected with the top end of the lever through the lever principle, drives the suspender of the bottom end of the lever inserted into the spring seat of the internal part of the ball valve to generate larger pulling force and displacement, so that the spring seat moves towards the center of the ball valve, the snap ring is conveniently removed and installed, and the disassembly and the installation of the internal parts of the valves such as the valve seat, the spring seat and the like are realized; the maintenance time of the valve is shortened, the labor input is reduced, and the damage of the valve internals in the disassembly and assembly process is avoided; simple structure and convenient use.

Description

Lever type ball valve internal part quick assembly disassembly device

Technical Field

The utility model relates to a valve dismouting frock especially relates to a lever ball valve internals quick assembly disassembly device.

Background

The ball valve is used for circulation or cutoff of pipeline media, and has wide application in the industries of petroleum, chemical engineering, natural gas, nuclear power and the like because the opening stroke is only 90 degrees, and the flow channel is usually designed in a full-bore way and has small fluid resistance. The ball valve can be divided into a side-mounted structure valve and an upper-mounted structure valve from an assembly mode, and in some use occasions with high requirements on external leakage, in order to reduce external leakage points, the connection mode of the valve and a pipeline is mostly in a direct welding mode, so that the side-mounted ball valve needs to be maintained, and the pipeline has to be cut off to take down the valve; and because all valve internals of the top-mounted ball valve are assembled from the upper part of the valve body, the top-mounted ball valve can directly replace the internals on a pipeline, and compared with a side-mounted ball valve, the top-mounted ball valve can shorten the maintenance period and reduce the maintenance cost. The upper-mounted ball valve has also been widely used in various industries.

The difficulty in disassembling and assembling the valve internals of the top-loading ball valve lies in the disassembly and assembly of the snap ring, and because the installation position of the snap ring is close to the inner wall of the valve body, the disassembly and assembly are difficult, the disassembly and assembly are usually carried out by the cooperation of a plurality of people, and sometimes, the unnecessary damage of the valve internals is caused because of the unreasonable disassembly and assembly tools. Accordingly, there is a need for improvements and developments in the art.

Disclosure of Invention

The utility model aims to solve the technical problem that a lever ball valve internals quick assembly disassembly device is provided, solve the problem of ball valve internals dismouting difficulty.

The utility model discloses a solve above-mentioned technical problem and the technical scheme who adopts provides a lever ball valve internals quick assembly disassembly device, which comprises a support, run through in the support and be provided with the main shaft, be provided with two sets of dismouting subassemblies on the main shaft, every group the dismouting subassembly all includes lever, pull rod and jib, the upper portion cover of lever is established on the main shaft and can be followed the main shaft rotation, the top swing joint of pull rod and lever, the bottom fixed connection of jib and lever, the one end that the lever was kept away from to the jib is provided with fixed protrusion.

Furthermore, a positioning hole for fixing the ball body of the ball valve is formed in the center of the bottom of the support; waist-shaped through holes matched with the levers are formed in two sides of the positioning holes, the levers penetrate through the waist-shaped through holes to be connected to the main shaft, and the waist-shaped through holes limit the rotation range of the levers; a positioning step matched with the upper mounting hole of the ball valve body is arranged on the outer side of the waist-shaped through hole; and a fixing hole is formed in the outer side of the positioning step and matched with a mounting hole of a flange in the ball valve body.

Furthermore, a supporting plate is arranged in the middle of the support, supporting holes matched with the main shaft are formed in the two ends of the support and the supporting plate, and the main shaft penetrates through the supporting holes to be fixed.

Furthermore, the top end of the lever is provided with a guide groove, and the lever is in pin joint with the pull rod through a guide pin penetrating through the guide groove.

Furthermore, the upper portion of the lever is provided with a spindle hole matched with the spindle, and the lever is sleeved on the spindle through the spindle hole and rotates along the spindle.

Furthermore, the bottom end of the lever is provided with a threaded hole, and the suspender is fixedly connected with the lever through the threaded hole.

Furthermore, one end of the pull rod is provided with a pin hole, and the pull rod is movably connected with the lever through the pin hole.

Furthermore, a support side plate is arranged on one side of the support, a through hole matched with the pull rod is formed in the support side plate, and a thread is arranged at one end, far away from the lever, of the pull rod; the pull rod penetrates through the through hole and is connected with a locking nut through threads.

The utility model discloses contrast prior art has following beneficial effect: the utility model provides a lever ball valve internals quick assembly disassembly device, through the lever principle, exert less pulling force and displacement on the pull rod that the lever top is connected, drive the jib that the end of lever bottom inserts in the ball valve internals spring holder and produce great pulling force and displacement, make the spring holder move to the ball valve center, convenient demolish and install the snap ring, realize the dismantlement and the installation of valve internals such as valve seat, spring holder; tension and displacement are generated by screwing a locking nut arranged on the pull rod, so that the tension and the displacement are conveniently controlled; the disassembly and assembly of the valve can be completed by a single person, the maintenance time of the valve is shortened, the input of manpower is reduced, and the damage of the internal parts of the valve in the disassembly and assembly process is avoided; simple structure and convenient use.

Drawings

Fig. 1 is a schematic structural view of a lever-type ball valve internal member quick dismounting device according to an embodiment of the present invention;

fig. 2 is a schematic view of a support structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of a lever and boom structure according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a pull rod according to an embodiment of the present invention;

fig. 5 is a schematic use view of the lever-type ball valve internal member quick dismounting device according to the embodiment of the present invention;

FIG. 6 is a schematic diagram of a ball valve trim installation flow.

In the figure:

1. a support; 1.1, positioning holes; 1.2, fixing holes; 1.3, supporting holes; 1.4, positioning a step; 1.5, a waist-shaped through hole; 1.6, a support plate; 2. a main shaft; 3. a lever; 3.1, a guide groove; 3.2, main shaft holes; 4. a support side plate; 5. locking the nut; 6. a pull rod; 6.1, pin holes; 6.2, screw threads; 7. a guide pin; 8. a screw; 9. a boom; 10. a nut; 11. a stud; 12. a valve body; 13. a sphere; 14. a spring seat; 15. a snap ring; 16. a valve seat; 17. a spring; 18. a groove surface; 19. an end face.

Detailed Description

The invention is further described with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a lever-type ball valve internal member quick-mounting and-dismounting device according to an embodiment of the present invention; fig. 2 is a schematic view of a support structure according to an embodiment of the present invention.

Please refer to fig. 1 and fig. 2, the utility model discloses a lever ball valve internals quick assembly disassembly device, including support 1, run through in the support 1 and be provided with main shaft 2, be provided with two sets of dismouting subassemblies on the main shaft 2, every group dismouting subassembly all includes lever 3, pull rod 6 and jib 9, the upper portion cover of lever 3 is established on main shaft 2 and can be followed main shaft 2 and rotated, pull rod 6 and lever 3's top swing joint, jib 9 and lever 3's bottom fixed connection, the one end that lever 3 was kept away from to jib 9 is provided with the stationary hump, insert the hole groove of spring holder 14 through the stationary hump, drive spring holder 14 and move to valve body 12 center.

Specifically, the center of the bottom of the support 1 is provided with a positioning hole 1.1 for fixing the ball 13 of the ball valve, so that the positioning function is realized, and the movement of the ball 13 is prevented; waist-shaped through holes 1.5 matched with the levers 3 are formed in the two sides of the positioning holes 1.1, the levers 3 penetrate through the waist-shaped through holes 1.5 to be connected to the spindle 2, and the rotation range of the levers 3 is limited by the waist-shaped through holes 1.5; a positioning step 1.4 matched with an upper mounting hole of the ball valve body 12 is arranged on the outer side of the waist-shaped through hole 1.5 and is matched with the valve body 12 for positioning, so that the support 1 is prevented from moving; the outside of location step 1.4 is provided with fixed orifices 1.2, and fixed orifices 1.2 matches with the mounting hole of flange in the ball valve body 12.

Preferably, a support plate 1.6 is arranged in the middle of the support 1, support holes 1.3 matched with the main shaft 2 are formed in both ends of the support 1 and the support plate 1.6, and the main shaft 2 penetrates through the support holes 1.3 to be fixed; the support plate 1.6 prevents the deformation of the middle part of the spindle 2 under the action of the tie rod 6.

Please refer to fig. 3, the top of the lever 3 of the device for quickly dismounting and mounting internal components of a lever ball valve of the embodiment of the present invention is provided with a guide slot 3.1, and the lever 3 is pin-connected with the pull rod 6 by a guide pin 7 passing through the guide slot 3.1. The upper portion of lever 3 is provided with the main shaft hole 3.2 with main shaft 2 matching, and lever 3 overlaps through main shaft hole 3.2 and establishes on main shaft 2 and rotates along main shaft 2. The bottom of the lever 3 is provided with a threaded hole, and the suspender 9 is fixedly connected with the lever 3 through the threaded hole.

Please refer to fig. 4, in the lever-type ball valve internal member quick dismounting device of the embodiment of the present invention, one end of the pull rod 6 is fork-shaped and is provided with a pin hole 6.1, and the pull rod 6 is movably connected with the lever 3 through the pin hole 6.1. A support side plate 4 is arranged on one side of the support 1, the support side plate 4 is fixedly connected with the support 1 through a screw 8, a through hole matched with the pull rod 6 is formed in the support side plate 4, and a thread 6.2 is formed in one end, far away from the lever 3, of the pull rod 6; the pull rod 6 passes through the through hole and is connected with a locking nut 5 through a thread 6.2.

Please refer to fig. 5 and fig. 6 simultaneously, in practical use, the support 1 of the lever-type ball valve internal member quick dismounting device of the embodiment of the present invention is assembled on the valve body 12, and is fixed to the mounting hole of the flange in the valve body 12 through the stud 11 and the nut 10 passing through the fixing hole 1.2, the lever 3 and the suspension rod 9 are together extended into the valve body 12 through the upper mounting hole of the valve body 12, the locking nut 5 is unscrewed, and the bottom end of the suspension rod 9 is installed in the hole groove of the spring seat 14; the locking nut 5 is screwed down to drive the pull rod 6, the pull rod 6 drives the lever 3 to act through the guide pin 7, the suspension rod 9 at the bottom of the lever 3 can drive the spring seat 14 and the valve seat 16 to lean against the ball 13 through the lever principle, and after the groove surface 18 of the spring seat 14 moves out of the end surface 19 of the valve body 12, the snap ring 15 can be conveniently installed or removed.

Please continue to refer to fig. 6, the utility model discloses lever ball valve internals quick assembly disassembly device, during the assembly of valve internals, earlier adorn internals such as disk seat 16, spring 17 and spring holder 14 into valve body 12, because there is gapped T1 between disk seat 16 and the spheroid 13, spheroid 13 can be adorned into valve body 12, then assemble support 1 on valve body 12, drive pull rod 6 through screwing up lock nut 5, drive spring holder 14 and disk seat 16 through the lever and move to spheroid 13, after spring holder 14 recess face 18 shifted out the terminal surface 19 of valve body 12, snap ring 15 can be adorned, later unscrew lock nut 5, spring holder 14 keeps the location through snap ring 15, disk seat 16 keeps sealed with spheroid 13 under the effect of spring 17, demolish the frock at last, valve internals assembly finishes.

The side dismantling process of the valve internals is opposite to the assembling process of the valve internals, the tool is also adopted, the spring seat 14 is driven to move through the pull rod 6, after the snap ring 15 is dismantled, the valve seat 16 and the spring seat 14 move back to the right, then the ball body 13 is dismantled, and after the ball body 13 is taken out, the spring seat 14 and the valve seat 16 can be dismantled again.

To sum up, the lever-type ball valve internal part quick dismounting device of the embodiment of the utility model applies smaller pulling force and displacement on the pull rod 6 connected with the top end of the lever 3 through the lever principle, drives the suspender 9 inserted into the ball valve internal part spring seat 14 at the bottom end of the lever 3 to generate larger pulling force and displacement, so that the spring seat 14 moves towards the center of the ball valve, conveniently dismounting and mounting the snap ring 15, and realizing dismounting and mounting of valve internal parts such as the valve seat 16 and the spring seat 14; tension and displacement are generated by screwing a locking nut 5 arranged on a pull rod 6, so that the tension and the displacement are convenient to control; the disassembly and assembly of the valve can be completed by a single person, the maintenance time of the valve is shortened, the labor input is reduced, and the damage of the internal parts of the valve in the disassembly and assembly process is avoided; simple structure and convenient use.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The lever type ball valve internal part rapid dismounting device is characterized by comprising a support, wherein a main shaft penetrates through the support, two groups of dismounting assemblies are arranged on the main shaft, each group of dismounting assemblies comprises a lever, a pull rod and a suspension rod, the upper part of the lever is sleeved on the main shaft and can rotate along the main shaft, the pull rod is movably connected with the top end of the lever, the suspension rod is fixedly connected with the bottom end of the lever, and a fixing protrusion is arranged at one end, away from the lever, of the suspension rod.

2. The lever type ball valve internal member quick dismounting device as claimed in claim 1, wherein a positioning hole for fixing the ball body of the ball valve is provided at the center of the bottom of the support; waist-shaped through holes matched with the levers are formed in two sides of the positioning holes, the levers penetrate through the waist-shaped through holes to be connected to the main shaft, and the waist-shaped through holes limit the rotation range of the levers; a positioning step matched with the upper mounting hole of the ball valve body is arranged on the outer side of the waist-shaped through hole; and a fixing hole is formed in the outer side of the positioning step and matched with a mounting hole of a flange in the ball valve body.

3. The lever type ball valve internal member quick dismounting device as claimed in claim 1, wherein a support plate is provided at a middle portion of the support, support holes matched with the main shaft are provided at both ends of the support and the support plate, and the main shaft is fixed through the support holes.

4. A lever type ball valve internal quick disassembling and assembling device as claimed in claim 1, wherein a guide groove is provided at a top end of the lever, and the lever is pinned with the drawbar by a guide pin passing through the guide groove.

5. The lever type ball valve internal member quick dismounting device as claimed in claim 1, wherein the upper portion of the lever is provided with a spindle hole matching with the spindle, and the lever is sleeved on the spindle through the spindle hole and rotates along the spindle.

6. A lever type ball valve internal member quick assembling and disassembling device as defined in claim 1, wherein a threaded hole is provided at a bottom end of the lever, and the suspension lever is fixedly connected with the lever through the threaded hole.

7. The lever type ball valve internal member quick dismounting device as claimed in claim 1, wherein one end of the pull rod is provided with a pin hole, and the pull rod is movably connected with the lever through the pin hole.

8. The lever type ball valve internal member rapid dismounting device as claimed in claim 1, wherein a support side plate is provided at one side of the support, the support side plate is provided with a through hole matching with the pull rod, and a thread is provided at one end of the pull rod away from the lever; the pull rod penetrates through the through hole and is connected with a locking nut through threads.