阅读说明：本技术 一种阀门固定装置 (Valve fixing device ) 是由 冯海章 郑建英 王克虎 史晓荣 黄振华 于 2019-10-31 设计创作，主要内容包括：本发明属于核电检修工装治具领域,尤其涉及一种阀门固定装置。一种阀门固定装置,配合设置在管道的阀门壳体使用,阀门壳体包括连接管道的连轴块以及连接连轴块的厄架,厄架包括与连轴块相对设置的顶块以及两连接臂,顶块的两端分别连接两连接臂的一端,两连接臂的另一端分别连接连轴块的两端,顶块与连轴块之间形成作业区间,阀门固定装置包括：夹臂组件,包括第一夹臂和第二夹臂,第一夹臂和第二夹臂相对设置；锁紧组件,用于使第一夹臂和第二夹臂于作业区间处共同夹持阀杆；固定组件,用于限制夹臂组件相对顶块或连轴块相对转动。本发明在电动头脱离于电动阀门后,可以对阀杆进行锁止,防止阀杆意外转动。(The invention belongs to the field of nuclear power overhaul tool fixtures, and particularly relates to a valve fixing device. The utility model provides a valve fixing device, the cooperation sets up the valve housing who uses at the pipeline, and valve housing includes the axle piece of connecting tube and connects the yoke of axle piece, and yoke includes kicking block and two linking arms that set up relatively with the axle piece, and the one end of two linking arms is connected respectively at the both ends of kicking block, and the both ends of axle piece are connected respectively to the other end of two linking arms, and the kicking block forms the operation interval with linking between the axle piece, and valve fixing device includes: the clamping arm assembly comprises a first clamping arm and a second clamping arm, and the first clamping arm and the second clamping arm are arranged oppositely; the locking assembly is used for enabling the first clamping arm and the second clamping arm to clamp the valve rod together at the operation section; and the fixing component is used for limiting the relative rotation of the clamping arm component relative to the jacking block or the connecting shaft block. According to the invention, after the electric head is separated from the electric valve, the valve rod can be locked, so that the valve rod is prevented from accidentally rotating.)

1. The utility model provides a valve fixing device, the cooperation sets up the valve housing use at the pipeline to the locking valve rod, wherein, valve housing is including connecting the axle piece of pipeline and connection the yoke of axle piece, yoke include with relative kicking block and the two linking arms that set up of axle piece, two are connected respectively at the both ends of kicking block the one end of linking arm, two the other end of linking arm is connected respectively the both ends of axle piece, the kicking block with form the operation interval between the axle piece, the one end of valve rod is worn to establish the operation interval and is stretched into in the pipeline, its characterized in that, valve fixing device includes:

the clamping arm assembly comprises a first clamping arm and a second clamping arm, and the first clamping arm and the second clamping arm are arranged oppositely;

the locking assembly is used for enabling the first clamping arm and the second clamping arm to clamp the valve rod together at the operation section;

and the fixing component is used for limiting the relative rotation of the clamping arm component relative to the top block or the connecting shaft block.

2. The valve retainer of claim 1 wherein: the fixed component can adjust the position of arm lock subassembly, and can adjust to the messenger the arm lock subassembly butt the kicking block or the shaft coupling piece, wherein, the arm lock subassembly with the kicking block or restrict during the butt between the shaft coupling piece the arm lock subassembly is relative the kicking block or the shaft coupling piece rotates relatively.

3. The valve retainer of claim 2 wherein: the fixed subassembly includes at least one first regulating part, first regulating part can follow for first arm lock is directional the direction relative movement of kicking block, wherein, first regulating part makes when moving to contradicting the kicking block first arm lock butt the kicking block, and the restriction first arm lock is relative the kicking block or the shaft coupling piece relative rotation, and makes when moving to contradicting the shaft coupling piece first arm lock butt the kicking block, and the restriction first arm lock is relative the kicking block or the shaft coupling piece relative rotation.

4. A valve retainer according to claim 3 wherein: the first adjusting piece is of a screw rod structure, a first threaded hole is formed in the first clamping arm along the direction, pointing to the ejecting block, of the connecting shaft block, the first adjusting piece is in threaded connection with the first threaded hole and moves relatively in the direction, pointing to the ejecting block, of the connecting shaft block through rotating relative to the first clamping arm.

5. The valve retainer of claim 2 wherein: the fixed subassembly includes at least one second regulating part, the second regulating part can follow for the second arm lock is directional the axle piece is to the direction relative movement of kicking block, wherein, the second regulating part makes when moving to contradicting the kicking block the second arm lock butt the axle piece, and the restriction the second arm lock is relative the kicking block or the axle piece rotates relatively, and makes when moving to contradicting the axle piece the second arm lock butt the kicking block, and the restriction the second arm lock is relative the kicking block or the axle piece rotates relatively.

6. The valve retainer of claim 5 wherein: the second adjusting piece is of a screw rod structure, a second threaded hole is formed in the second clamping arm along the direction, pointing to the ejecting block, of the connecting shaft block, the second adjusting piece is in threaded connection with the second threaded hole and moves relatively along the direction, pointing to the ejecting block, of the connecting shaft block through rotation relative to the second clamping arm.

7. The valve holding device of claim 2, wherein: first arm lock butt the position of valve rod seted up with the first breach of valve rod week side face adaptation, the inner wall butt of first breach the week side face of valve rod.

8. The valve retainer of claim 7 wherein: the second clamping arm is abutted to the position of the valve rod, the second clamping arm is matched with the peripheral side face of the valve rod and is matched with the second notch in a first notch, and the inner wall of the second notch is abutted to the peripheral side face of the valve rod.

9. The valve retainer of claim 8 wherein: the cross-sectional shape of the first notch and/or the second notch is semicircular.

10. The valve retainer of claim 1 wherein: the locking assembly comprises a bolt and a nut screwed at one end of the bolt, first through holes are formed in two ends of the first clamping arm respectively, second through holes are formed in positions, corresponding to the first through holes, of two ends of the second clamping arm, the bolt is arranged at the first through hole, and the bolt is screwed with the nut corresponding to the second through hole through the corresponding first through hole respectively so as to lock the first clamping arm and the second clamping arm.

Technical Field

The invention belongs to the field of nuclear power overhaul tool fixtures, and particularly relates to a valve fixing device.

Background

At present, in the nuclear power industry, the system operation risk is crucial, and the risk with any possibility needs to be reliably controlled. And the safety guarantee of the electric valve is also important.

The electric valve comprises a valve shell connected with a pipeline, a valve rod and an electric head, wherein one end of the valve rod is arranged in the valve shell and controls the pipeline to be communicated/closed in the rotating process, and the electric head is connected with the other end of the valve rod. The power head is used to lock the valve stem to prevent inadvertent rotation of the valve stem.

However, the power head needs to be periodically overhauled to ensure the reliability of the power head. When the electric head is separated from the valve rod, the valve rod loses the protection of the self-locking of the electric head, and meanwhile, because the valve rod is influenced by the pressure of fluid in the pipeline, the risk of opening the pipeline accidentally occurs.

Disclosure of Invention

The invention aims to provide a valve fixing device, and aims to solve the problem of how to lock a valve rod and prevent the valve rod from rotating after an electric head of an electric valve is disassembled.

The invention provides a valve fixing device which is matched with a valve shell arranged on a pipeline for use so as to lock a valve rod, wherein the valve shell comprises a connecting shaft block connected with the pipeline and an Erie frame connected with the connecting shaft block, the Erie frame comprises a top block and two connecting arms, the top block and the two connecting arms are arranged opposite to the connecting shaft block, two ends of the top block are respectively connected with one ends of the two connecting arms, the other ends of the two connecting arms are respectively connected with two ends of the connecting shaft block, an operation interval is formed between the top block and the connecting shaft block, one end of the valve rod penetrates through the operation interval and extends into the pipeline, and the valve fixing device comprises:

the clamping arm assembly comprises a first clamping arm and a second clamping arm, and the first clamping arm and the second clamping arm are arranged oppositely;

the locking assembly is used for enabling the first clamping arm and the second clamping arm to clamp the valve rod together at the operation section;

and the fixing component is used for limiting the relative rotation of the clamping arm component relative to the top block or the connecting shaft block.

The invention has the technical effects that: first arm lock and second arm lock are under locking Assembly's effect, common centre gripping valve rod, and the subassembly is fixed to the rethread, prevents that the relative coupling piece of arm lock subassembly or kicking block from rotating, and then carries out the locking to the valve rod, prevents that the valve rod from rotating, has improved electric valve's reliability, avoids the pressure in the pipeline to open electric valve, has guaranteed the security of pipeline.

Drawings

FIG. 1 is an assembly view of a valve retainer device and electrically operated valve according to an embodiment of the present invention;

FIG. 2 is a perspective view of the valve retainer of FIG. 1;

fig. 3 is an exploded view of the valve retainer device of fig. 2.

The correspondence between reference numbers and names in the drawings is as follows:

100. a valve fixing device; 200. a Here frame; 300. a valve body; 301. a valve stem; 302. a coupling block; 10. a fixing assembly; 11. a first clamp arm; 12. a first adjustment member; 20. a clamp arm assembly; 21. a second clamp arm; 22. a second adjustment member; 30. a locking assembly; 31. a bolt; 32. a nut; 101. a first threaded hole; 102. a first notch; 103. a first through hole; 201. a second threaded hole; 202. a second notch; 203. a second through hole; 400. an operation interval; 205. a Here frame;

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "vertical", "parallel", "bottom", "angle", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship.

Referring to fig. 1 to 3, a valve fixing device 100 for use with an electric valve is provided in an embodiment of the present invention. The electrically operated valve includes a valve housing 300 to which a pipe is connected, a valve stem 301 to which the valve housing 300 is connected, and an electric head for locking the valve stem 301. When the electric head was dismantled and was overhauld, valve fixing device 100 cooperation valve casing 300 was used to lock valve rod 301, prevent that valve rod 301 unexpected from rotating, thereby make the electric valve by the pressure in the pipeline rush out. The valve housing 300 includes a coupling block 302 for connecting a pipeline and an yoke 205 for connecting the coupling block 302, the yoke 205 includes two connecting arms (not shown in the figure) and a top block 300, two ends of the top block 300 are respectively connected to one end of the two connecting arms, the other ends of the two connecting arms are respectively connected to two ends of the coupling block 302, an operation area 400 is formed between the top block 300 and the coupling block 302, and one end of a valve rod penetrates through the operation area 400 and extends into the pipeline. Optionally, the coupling block 302 and the top block 200 are both provided with through holes, so that the valve rod 301 can penetrate through the coupling block 302 and the top block 200 from the two through holes.

The valve fixing device 100 includes: clamping arm assembly 20, locking assembly 30 and fixing assembly 10. The clamping arm assembly 20 includes a first clamping arm 21 and a second clamping arm 22 disposed in parallel with the first clamping arm 21 and used in cooperation therewith, and the first clamping arm 21 and the second clamping arm 22 are both located in the working area 400. It is understood that the valve rod 301 is located between the first clamping arm 21 and the second clamping arm 22, and the locking assembly 30 is used for enabling the first clamping arm 21 and the second clamping arm 22 to jointly clamp the valve rod 301 at the working space 400. The fixing assembly 10 is used for limiting the clamping arm assembly 20 to rotate relative to the top block 200 or the coupling block 302, so that the valve rod 301 is fixed and cannot rotate relative to the coupling block 302 or the top block 200, and the reliability of the electric valve is improved.

First arm lock 21 and second arm lock 22 are under locking Assembly 30's effect, and common centre gripping valve rod 301, subassembly 10 is fixed to the rethread, prevents that arm lock subassembly 20 from rotating relative shaft piece 302 or kicking block 200, and then carries out the locking to valve rod 301, prevents that valve rod 301 from rotating, has improved electric valve's reliability, avoids the pressure in the pipeline to open electric valve, has guaranteed the security of pipeline.

The fixing assembly 10 can adjust the position of the clamping arm assembly 20 and can be adjusted to make the clamping arm assembly 20 abut against the top block or the coupling block 302, wherein the clamping arm assembly 20 is limited from rotating relatively to the top block or the coupling block 302 when the clamping arm assembly 20 abuts against the top block or the coupling block 302. Thereby, the valve fixing device 100 is adapted to different operation intervals 400, and the application range of the valve fixing device 100 is enlarged.

The fixing component 10 comprises at least one first adjusting piece 12, the first adjusting piece 12 can move relatively relative to the first clamping arm 11 along the direction of the connecting shaft block 302 pointing to the top block, wherein when the first adjusting piece 12 moves to the abutting top block, the first clamping arm 11 abuts against the connecting shaft block 302 and limits the relative rotation of the first clamping arm 11 relative to the top block or the connecting shaft block 302, and when the first adjusting piece 12 moves to the abutting connecting shaft block 302, the first clamping arm 11 abuts against the top block and limits the relative rotation of the first clamping arm 11 relative to the top block or the connecting shaft block 302.

Specifically, one end of the first adjusting member 11 is connected to the first clamping arm 21, and the other end of the first adjusting member 11 abuts against the top block 200 and is pressed towards the top block 200, so that the first clamping arm 21 is limited from rotating relative to the coupling block 302 or the top block 200. The length of the first adjusting part 11 between the first clamping arm 21 and the top block 200 is adjustable. By adjusting the length of the first adjusting part 11 between the coupling block 302 and the top block 200, the valve fixing device 100 is adapted to the operation intervals with different vertical heights, so that the application range of the valve fixing device 100 is enlarged.

First regulating part 12 is the screw rod structure, and first arm lock 11 offers along the first screw hole 101 of the directional kicking block's of coupling piece 302 direction, and first regulating part 12 spiro union is in first screw hole 101 to through rotating and relatively moving along the directional kicking block's of coupling piece 302 direction for first arm lock 11, in order to adjust the length that first regulating part 11 is located between first arm lock 21 and kicking block 200. Through the helicitic texture, can the accurate length of adjusting the first regulating part 11 and being located between kicking block 200 and first arm lock 21 to make first regulating part 11 compress tightly kicking block 200, and simple structure, convenient operation, it is with low costs.

In one embodiment, the first adjusters 11 are spaced apart by two, and the valve rod 301 is located between the two first adjusters 11. It will be appreciated that a plurality of first adjustment members 11 may ensure the reliability of the locking of the valve stem 301. Further, the first adjusting member 11 is engaged with the top block 200, so that the structure is simple and the use is convenient, thereby increasing the application range of the valve fixing device 100.

The fixing assembly 10 comprises at least one second adjusting member 22, and the second adjusting member 22 can relatively move along the direction of the connecting block 302 pointing to the top block relative to the second clamping arm 21, wherein when the second adjusting member 22 moves to the abutting top block, the second clamping arm 21 abuts against the connecting block 302 and limits the relative rotation of the second clamping arm 21 relative to the top block or the connecting block 302, and when the second adjusting member 22 moves to the abutting connecting block 302, the second clamping arm 21 abuts against the top block and limits the relative rotation of the second clamping arm 21 relative to the top block or the connecting block 302.

Specifically, one end of the second adjusting member 12 is connected to the second clamping arm 22, and the other end of the second adjusting member 12 abuts against and presses the top block 200, so that the second clamping arm 22 is prevented from rotating relative to the coupling block 302 or the top block 200, and the valve rod 301 is prevented from rotating together. The length of the second adjusting member 12 between the second clamping arm 22 and the top block 200 is adjustable. By adjusting the length of the second adjusting part 12 between the coupling block 302 and the top block 200, the valve fixing device 100 is adapted to the operation regions with different vertical heights, so that the application range of the valve fixing device 100 is enlarged.

Optionally, the first clip arm 21 and the second clip arm 22 are each 150mm by 23mm by 20mm in size. It can be understood that the first clamping arm 21 and the second clamping arm 22 are equivalent in function and structure, so that not only is subsequent maintenance and replacement convenient, but also mass production can be performed on the first clamping arm 21 and the second clamping arm 22, and thus the cost is reduced.

Optionally, the second adjusting part 22 is of a screw structure, the second clamping arm 21 is provided with a second threaded hole 201 pointing to the top block along the coupling block 302, and the second adjusting part 22 is screwed in the second threaded hole 201 and relatively moves along the direction pointing to the top block along the coupling block 302 by rotating relative to the second clamping arm 21, so as to adjust the length of the second adjusting part 12 between the second clamping arm 22 and the top block 200. Through the screw thread structure, can the accurate length of adjusting 12 between kicking block 200 and second arm lock 22 to make second adjusting 12 compress tightly kicking block 200, and simple structure, it is with low costs.

Optionally, the first threaded hole 101 and the second threaded hole 201 are both 8mm threaded holes.

In one embodiment, the second adjusters 12 are spaced apart by two, and the valve rod 301 is located between the two second adjusters 12. It will be appreciated that a plurality of second adjustment members 12 may ensure the reliability of the locking of the valve stem 301. Further, the cooperation between the second adjusting member 12 and the top block 200 is simple in structure and convenient to use, thereby facilitating the wide use of the valve fixing device 100.

In one embodiment, the position where the first clamping arm 21 abuts against the valve rod 301 is opened with a first notch 102 matched with the peripheral side surface of the valve rod 301, and the inner wall of the first notch 102 abuts against the peripheral side surface of the valve rod 301. The position where the second clamping arm 22 abuts against the valve rod 301 is provided with a second notch 202 matched with the peripheral side surface of the valve rod 301, and the inner wall of the second notch 202 abuts against the peripheral side surface of the valve rod. The first notch 102 and the second notch 202 are adapted and matched with each other to clamp the valve rod 301 in the first notch 102 and the second notch 202, so that the valve rod 301 can be further clamped, the valve rod 301 is prevented from rotating, the first clamping arm 21 and the second clamping arm 22 can be further prevented from moving along the radial direction of the valve rod 301, and the use safety of the valve fixing device 100 is improved.

Optionally, the first notch 102 and the second notch 202 are both semicircular in shape, so that the first notch 102 and the second notch 202 surround to form a circular hole, and the valve rod 301 is located in the circular hole. It can be understood that the outer diameter of the valve rod 301 is larger than the diameter of the circular hole, so that a gap is left between the first clamping arm 21 and the second clamping arm 22, and the inner walls of the first notch 012 and the second notch 202 abut against the peripheral side surface of the valve rod.

In one embodiment, the locking assembly 30 includes a bolt 31 and a nut 32 screwed on one end of the bolt 31, the first clamping arm 21 has first through holes 103 respectively formed at two ends thereof, and the second clamping arm 22 has second through holes 203 formed at two ends thereof corresponding to positions of the first through holes 103. Each first through hole is provided with a bolt 31 and a nut 32. The two bolts 31 are respectively screwed and locked with the two nuts 32 through the corresponding first through holes 103 and the corresponding second through holes 203 to lock the first clamping arm 21 and the second clamping arm 22. By the cooperation of the bolt 31 and the nut 32, the convenience of assembling and disassembling the first clamping arm 21 and the second clamping arm 22 can be improved.

Optionally, the aperture of each of the first through hole 103 and the second through hole 203 is 8 mm.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.