CN211738185U

CN211738185U - Large-diameter valve opening and closing tool

Info

Publication number: CN211738185U
Application number: CN201922388570.3U
Authority: CN
Inventors: 郭光亮; 芮守龙; 孙旭; 黄磊
Original assignee: Jiangsu Nuclear Power Corp
Current assignee: Jiangsu Nuclear Power Corp
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-23
Anticipated expiration: 2029-12-27

Abstract

The utility model belongs to the technical field of mechanical assembly, in particular to a large-diameter valve opening and closing tool, which comprises a stress component, a fixed component, a force arm frame and an operating rod; the force arm frame is of a Y-shaped structure as a whole; the tail end of the arm support is in threaded connection with an operating rod; and two ends of the head of the force arm support are respectively in threaded connection with a stressed part and a fixed part. The utility model provides a heavy-calibre valve opening and closing instrument, the structure is simple and easy, and the preparation is convenient, and application method is simple, can open and close heavy-calibre valve fast safety, and the guarantee system in time comes into operation.

Description

Large-diameter valve opening and closing tool

Technical Field

The utility model belongs to the technical field of mechanical assembly, concretely relates to heavy-calibre valve opening and closing tool.

Background

The valve is used as important equipment for system isolation and plays an important role in safe and normal operation of the system.

Whether the valve can be normally opened and closed is directly related to safe operation of the system, along with the rapid development of the valve industry, the caliber of the valve at home and abroad is gradually increased at present, the opening and closing torque of the valve is increased accordingly, in view of the limitation of on-site maintenance space, the hand wheel of the valve cannot be designed too much, so that a valve operator cannot finish the opening and closing of the valve independently, and the timely operation of the system is directly influenced.

A large number of large-diameter valves are installed in a certain nuclear power station, the valves are jammed for many times during daily operation, and the valves cannot be normally opened and closed, and cannot be opened and closed in time by operators due to the fact that the valve diameter is large and the size of a hand wheel of each valve is limited, and therefore the system cannot be used.

Therefore, a large-diameter valve opening and closing tool needs to be designed and manufactured according to the structural characteristics of a field valve hand wheel, a special hand wheel fixing set component can be manufactured according to the structural characteristics of the valve hand wheel, and operating rods with different lengths and different materials are selected according to the opening and closing torque of the valve, so that the problem that the large-diameter valve cannot be opened quickly is solved.

Disclosure of Invention

The utility model aims at the not enough of above-mentioned technique, provide a heavy-calibre valve opening and closing instrument for solve the unable quick safe technical problem of opening and close of heavy-calibre valve among the prior art.

The technical scheme of the utility model:

a large-caliber valve opening and closing tool comprises a stress component 1, a fixing component 2, a force arm support 3 and an operating rod 4; the force arm frame 3 is integrally of a Y-shaped structure; the tail end of the arm support 3 is in threaded connection with an operating rod 4; two ends of the head of the force arm support 3 are respectively in threaded connection with a force bearing part 1 and a fixing part 2.

The whole fixed part 2 is of a U-shaped structure, and the middle end of the fixed part 2 is fixed at one end of the head of the arm support 3.

The whole stress part 1 is also in a U-shaped structure, and one end of the stress part 1 is fixedly connected with the other end of the head of the force arm support 3.

The length of the operating rod 4 is matched with the opening and closing torque value of the valve.

The utility model has the advantages that:

the utility model provides a heavy-calibre valve opening and closing instrument, the structure is simple and easy, and the preparation is convenient, and application method is simple, can open and close heavy-calibre valve fast safety, and the guarantee system in time comes into operation.

Drawings

Fig. 1 is a schematic structural view of a large-diameter valve opening and closing tool according to the present invention;

FIG. 2 is a schematic view of a common hand wheel of a valve

In the figure: 1-stress component, 2-fixed component, 3-force arm support, 4-operating rod, 5-diagonal rod and 6-outer ring

Detailed Description

The invention will be further described with reference to the following figures and examples:

The utility model relates to a heavy-calibre valve opening and closing instrument operating method as follows:

[1] selecting an operating rod 4 with proper length according to the valve opening and closing torque value;

[2] manually screwing the stress component 1, the fixing component 2 and the force arm support 3;

[3] the operating rod 4 is screwed into the force arm support 3, so that the operating rod 4 is tightly connected with the force arm support 3 and cannot be easily loosened;

[4] the hand-held operating rod 4 hooks the force-bearing part 1 on the inclined rod 5 in fig. 2;

[5] the fork of the fixed part 2 is pressed against the outer ring 6 in fig. 2, ensuring that the fixed part 2 is in full contact with the outer ring 6.

[6] The valve can be opened and closed by tightly holding the operating rod 4 and exerting force along the circumferential direction of the outer ring.

The present invention has been described in detail with reference to the drawings and the actual operation, but the present invention is not limited to the above-described operation, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can be applied to any other part not described in detail.

Claims

1. The utility model provides a heavy-calibre valve opening and close instrument which characterized in that: comprises a stress component (1), a fixed component (2), a force arm support (3) and an operating rod (4); the force arm support (3) is of a Y-shaped structure as a whole; the tail end of the arm support (3) is in threaded connection with an operating rod (4); two ends of the head of the force arm support (3) are respectively in threaded connection with a stressed part (1) and a fixed part (2).

2. A large diameter valve opening and closing tool as claimed in claim 1, wherein: the whole fixed part (2) is of a U-shaped structure, and the middle end of the fixed part (2) is fixed at one end of the head of the arm support (3).

3. A large diameter valve opening and closing tool as claimed in claim 2, wherein: the stress component (1) is also in a U-shaped structure as a whole, and one end of the stress component (1) is fixedly connected with the other end of the head of the force arm support (3).

4. A large diameter valve opening and closing tool as claimed in claim 2, wherein: the length of the operating rod (4) is matched with the opening and closing torque value of the valve.