CN111745587A

CN111745587A - Top entry ball valve disk seat installation frock

Info

Publication number: CN111745587A
Application number: CN201910251163.XA
Authority: CN
Inventors: 陈尚书; 徐龙军; 杨雪华; 孙瑞堂
Original assignee: CNNC Sufa Technology Industry Co Ltd
Current assignee: CNNC Sufa Technology Industry Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-10-09

Abstract

The invention belongs to the technical field of valves and particularly relates to an upper-mounted ball valve seat mounting tool. The tool comprises a base and a tensioning plate which are arranged in parallel, wherein a plurality of guide rods and a tensioning rod are arranged between the base and the tensioning plate, a tensioning nut is arranged at the top end of the tensioning rod, a movable joint is arranged on the base, the tensioning plate is arranged above the top-mounted valve body, the base is arranged in a cavity of the valve body, and a valve seat to be installed on the movable joint on the base is fixed on the inner wall of the cavity of the valve body. The invention has the following effects: (1) the structure is ingenious and the operation is easy. Due to the fact that the combined unit structure is adopted and the weight reduction observation hole is formed, the whole weight is light, installation personnel can conveniently carry the combined unit structure, and meanwhile the tightening function can be achieved by rotating the tightening nut. (2) The frock has anti-cutting circle and limit function. Due to the adoption of a plurality of guide rod structures, the tensioning process is ensured to be stable, the ring cutting condition can be prevented, and meanwhile, the stop structure is used for preventing over tensioning.

Description

Top entry ball valve disk seat installation frock

Technical Field

The invention belongs to the technical field of valves and particularly relates to an upper-mounted ball valve seat mounting tool.

Background

The valve seat is a detachable surface component in the valve, is used for supporting the valve core at the fully closed position and forms a sealing pair. The diameter of the valve seat is the maximum flow diameter of the valve.

The valve seat installation tool is used for installing the valve seat.

When the complete machine assembles the valve seat, the upper-mounted ball valve has a lip-shaped ring sealing element between the outer circle of the valve seat and the valve body, and a spring energy storage ring is arranged in the structure of the upper-mounted ball valve, so that the compression amount is large in the installation process, the friction force between the lip-shaped ring and the valve body is large, the upper-mounted ball valve cannot be installed, and the situation of ring cutting is frequently generated, so that certain difficulty is brought to the assembly process, and the production cost is improved due to the fact that the lip-shaped ring is damaged.

In view of the above, how to develop the installation research of the valve seat of the top-loading ball valve under the existing condition becomes a main problem for the whole assembly of the top-loading ball valve.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an upper-mounted ball valve seat mounting tool.

The technical scheme of the invention is as follows: the tool comprises a base and a tensioning plate which are arranged in parallel, wherein a plurality of guide rods and a tensioning rod are arranged between the base and the tensioning plate, a tensioning nut is arranged at the top end of the tensioning rod, a movable joint is arranged on the base, the tensioning plate is arranged above the top-mounted valve body, the base is arranged in a cavity of the valve body, and a valve seat to be installed on the movable joint on the base is fixed on the inner wall of the cavity of the valve body.

The tool for installing the upper ball valve seat comprises a tensioning plate, wherein the tensioning plate is a circular part, a plurality of guide holes and a plurality of weight reduction observation holes are formed in the tensioning plate, external positioning is arranged at the edge of the tensioning plate, and the number of the guide holes is matched with the number of guide rods.

The tool for installing the upper-mounted ball valve seat comprises 4 guide holes.

The tool for installing the upper-mounted ball valve seat comprises a base, wherein the base is provided with a plurality of observation holes, and the number of the observation holes is 4.

The upper-mounted ball valve seat mounting tool comprises a guide rod, a base, a guide hole, a front end thread, a limit shoulder and a guide end, wherein the guide rod is a rod-shaped part, one end of the guide rod is flat, the end part close to one side of the flat is the front end thread, the front end thread is matched with the threaded hole in the base, the end part of the guide rod far away from one side of the flat is provided with the guide end and the limit shoulder, the guide end is matched with the guide hole in size, and the diameter of the limit shoulder is slightly larger than the size of the guide hole.

The tool for installing the top-mounted ball valve seat comprises a base, a tightening rod, a base, a tightening nut and a tightening screw.

The upper ball valve seat mounting tool comprises a base, a tension rod, a threaded hole and screw holes, wherein the threaded hole is matched with the tension rod, the threaded hole comprises threads matched with front end threads and positioning matched with the positioning, the threaded holes are respectively arranged on four support legs of the base, the threaded holes are respectively matched with the front end threads, the most end parts of the four support legs of the base are respectively provided with a screw hole, the screw holes are used for mounting a movable joint, and the connecting position of each support leg and the center is provided with an arc shoulder.

The upper-mounted ball valve seat mounting tool comprises a movable joint, wherein the movable joint is a fan-shaped annular part, the radian of the outer edge of the movable joint is matched with the radian of the inner wall of a valve seat to be mounted, the radian of the inner edge of the movable joint is matched with the radian of an arc shoulder on a base, the movable joint is provided with a threaded hole, and the movable joint can be fixed on the base through a screw.

According to the tool for installing the upper-mounted ball valve seat, a friction gasket is further arranged between the tension rod and the tension nut.

The invention has the following effects: (1) the structure is ingenious and the operation is easy. Due to the fact that the combined unit structure is adopted and the weight reduction observation hole is formed, the whole weight is light, installation personnel can conveniently carry the combined unit structure, and meanwhile the tightening function can be achieved by rotating the tightening nut. (2) The frock has anti-cutting circle and limit function. Due to the adoption of a plurality of guide rod structures, the tensioning process is ensured to be stable, the ring cutting condition can be prevented, and meanwhile, the stop structure is used for preventing over tensioning.

Drawings

FIG. 1 is a schematic diagram of a mounting tool structure for an upper-mounted ball valve seat

FIG. 2 is a schematic diagram of the installation tool for the upper ball valve seat

FIG. 3 is a schematic view of a tension plate structure

FIG. 4 is a schematic view of the structure of the guide bar

FIG. 5 is a schematic view of the tension bar structure

FIG. 6 is a schematic view of the base structure

FIG. 7 is a schematic view of the base A

FIG. 8 is a schematic view of the structure of the hinge

FIG. 9 is a schematic view of the direction B of the joint

In the figure: 1. tensioning the plate; 1-1, a guide hole; 1-2, a weight loss observation hole; 1-3, external positioning; 2. a guide bar; 2-1, flat potential; 2-2, front end threads; 2-3, a guide end; 2-4, a limiting shoulder; 3. a rubbing pad; 4. a tension bar; 4-1, front end screw thread; 4-2, positioning; 4-3, tightening the threads; 5. tightening the nut; 6. a base; 6-1, positioning; 6-2, screw thread; 6-3, arc shoulder; 6-4, support legs; 6-5, screw holes; 7. a screw; 8. a living joint; 8-1, a threaded hole; 8-2, circular arc shoulder; 8-3, inner arc; 9. a lip-shaped ring; 10. a top-mounted valve body; 10-1, a runner hole; 10-2, a middle cavity; 11. a valve seat; 11-1 and a process tank.

Detailed Description

This patent is further described below with reference to the accompanying drawings:

as shown in figures 1-9, the outer circle of a support leg 6-4 of a base 6 and the inner hole of a valve seat are positioned concentrically, an arc shoulder 6-3 arranged on the outer side of the base 6 is matched and positioned with an inner arc 8-3 of a movable joint 8, the arc shoulder 8-2 of the movable joint is clamped into a technical groove 11-1 of the valve seat 11, and a screw 7 is screwed into a screw hole 6-5 of the base 6 through a threaded hole 8-1 of the movable joint 8, so that the base 6, the movable joint 8 and the valve seat 11 are integrated.

After the valve seat 11 and the lip-shaped ring 9 are arranged in the position of the flow passage hole 10-1 through the cavity 10-2 in the upper-mounted valve body 10, the pull rod 4 is arranged at the central position of the base 6, wherein the thread 4-1 of the pull rod 4 is screwed into the thread 6-2 of the base 6, and the 6-1 positioning is matched with the 4-2 positioning. The front end thread 2-2 is screwed into the position of the support leg 6-4 of the base 6 by pulling the upper flat potential 2-1 of the guide rod 2, the tensioning plate 1 is arranged on the end face of the upper-mounted valve body 10, wherein the tensioning plate 1 is positioned 1-3 and matched with the upper-mounted valve body 10, the tensioning thread 4-3 of the pull rod 4 and the guide end 2-3 of the guide rod 2 penetrate into the guide hole of the tensioning plate 1, the tensioning nut 5 and the friction gasket 3 are arranged, and the tensioning valve seat 11 can be tensioned to the designated position along the flow channel 10-1 under the guide of the guide rod 2 and the action of the limiting shoulder 2-4 by screwing the tensioning nut 5.

The present invention is capable of other and various embodiments, and various modifications may be made by those skilled in the art without departing from the principles of the invention and these modifications are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a top-mounted ball valve seat installation frock which characterized in that: the adjustable valve is characterized by comprising a base (6) and a tensioning plate (1) which are arranged in parallel, wherein a plurality of guide rods (2) and a tensioning rod (4) are arranged between the base (6) and the tensioning plate (1), a tensioning nut (5) is arranged at the top end of the tensioning rod (4), a movable joint (8) is arranged on the base (6), the tensioning plate (1) is arranged above a top-mounted valve body (10), the base (6) is arranged in a cavity of the valve body (10), and a valve seat (11) to be installed of the movable joint (8) on the base (6) is fixed on the inner wall of the cavity of the valve body (10).

2. The upper-mounted ball valve seat mounting tool according to claim 1, characterized in that: the tensioning plate (1) is a circular part, a plurality of guide holes (1-1) and a plurality of weight-reduction observation holes (1-2) are formed in the tensioning plate (1), external positioning holes (1-3) are formed in the edge of the tensioning plate (1), and the number of the guide holes (1-1) is matched with the number of the guide rods (2).

3. The upper-mounted ball valve seat mounting tool according to claim 2, characterized in that: the number of the guide holes (1-1) is 4.

4. The upper-mounted ball valve seat mounting tool according to claim 2, characterized in that: the number of the weight-reducing observation holes (1-2) is 4.

5. The upper-mounted ball valve seat mounting tool according to claim 1, characterized in that: the guide rod (2) is a rod-shaped part, one end of the guide rod (2) is set to be flat potential (2-1), the end part close to one side of the flat potential (2-1) is provided with a front end thread (2-2), the front end thread (2-2) is matched with a threaded hole in the base (6), the end part of the guide rod (2) far away from one side of the flat potential (2-1) is provided with a guide end (2-3) and a limiting shoulder (2-4), the guide end (2-3) is matched with the size of the guide hole (1-1), and the diameter of the limiting shoulder (2-4) is slightly larger than the size of the guide hole (1-1).

6. The upper-mounted ball valve seat mounting tool according to claim 1, characterized in that: the tensioning rod (4) is a rod-shaped part, a front end thread (4-1) is arranged at one end of the tensioning rod (4), the front end thread (4-1) is matched with a threaded hole in the base (6), a positioning part (4-2) is arranged behind the front end thread (4-1), a tensioning thread (4-3) is arranged at the other end of the tensioning rod (4), and the tensioning thread (4-3) is matched with a tensioning nut (5).

7. The upper-mounted ball valve seat mounting tool according to claim 1, characterized in that: the base (6) is a cross-shaped part, a threaded hole matched with the tensioning rod (4) is formed in the center of the base (6), the threaded hole comprises a thread (6-2) matched with the front end thread (4-1) and a positioning (6-1) matched with the positioning (4-2), threaded holes matched with the front end thread (2-2) are formed in four supporting legs (6-4) of the base (6) respectively, threaded holes (6-5) are formed in the extreme ends of the four supporting legs (6-4) of the base (6) respectively, the threaded holes (6-5) are used for mounting the movable joint (8), and an arc shoulder (6-3) is arranged at the connecting position of each supporting leg (6-4) and the center.

8. The upper-mounted ball valve seat mounting tool according to claim 1, characterized in that: the movable joint (8) is a fan-shaped annular part, the radian of the outer edge of the movable joint (8) is matched with the radian of the inner wall of the valve seat (11) to be installed, the radian of the inner edge of the movable joint (8) is matched with the radian of an arc shoulder (6-3) on the base (6), a threaded hole (8-1) is formed in the movable joint (8), and the movable joint (8) can be fixed on the base (6) through a screw.

9. The upper-mounted ball valve seat mounting tool according to claim 1, characterized in that: a friction pad (3) is arranged between the tightening rod (4) and the tightening nut (5).