CN-115773395-B - Online valve body wind line anticreep ware

CN115773395BCN 115773395 BCN115773395 BCN 115773395BCN-115773395-B

Abstract

The invention relates to the field of valve body anti-drop devices, in particular to an online valve body wind line anti-drop device which comprises a pair of chassis, a clamping part, a limiting part, a tensioning part, a lower connecting part and a lower connecting part, wherein a pair of bolts are connected between the pair of chassis, a lower limiting hole is formed between the pair of chassis, the clamping part is arranged on the chassis, a middle limiting hole is formed in the center of the clamping part, the limiting part is arranged on the clamping part, the limiting part acts on the clamping part, an upper limiting hole is formed in the center of the limiting part, the top end of the tensioning part is detachably connected with the limiting part, and the lower connecting part is detachably connected to the bottom end of the tensioning part. The invention adopts the chassis, the chuck and the connecting piece to strengthen the joint of the valve body, so that the problems of falling-off of the air source union, bursting of the air source ball valve joint and tearing of the pressing ring and the pressing cap of the air source joint can be prevented, and the problems of production fluctuation, device parking, environmental pollution and safety accidents are further prevented.

Inventors

HAN HAO
WU XIANG
JIA FEI
XIE YANGANG

Assignees

中国石油天然气股份有限公司

Dates

Publication Date: 20260508
Application Date: 20210907

Claims (4)

1. An on-line valve body wind line anticreep ware, characterized in that includes: the device comprises a pair of base plates (1), wherein a pair of bolts are connected between the base plates (1), a lower limit hole is formed between the base plates (1), and the base plates (1) are tightly screwed on the outer wall of a top tube of a valve body through the bolts to clamp the outer wall of the top tube of the valve body radially once; The clamping part is arranged on the chassis (1), and a middle limiting hole is formed in the center of the clamping part; The limiting part is arranged on the clamping part, acts on the clamping part, an upper limiting hole is formed in the center of the limiting part, and acts on the clamping part to drive the clamping part to clamp the pipe wall in the secondary radial direction; the top end of the tensioning part is detachably connected with the limiting part, and the tensioning part limits radial torsion between the limiting part and the lower connecting part; The lower connecting part is detachably connected to the bottom end of the tensioning part and is arranged at the bottom of the regulating valve; the upper limit hole, the middle limit hole and the lower limit hole are coaxial; the primary radial clamping of the chassis (1) and the secondary radial clamping of the clamping part cooperate with the axial tensioning of the lower connecting part of the tensioning part to act on the connecting part of the valve body wind line; The clamping part comprises at least one pair of chucks (2) with the same structure, bolts are connected between the chucks (2), the contact surfaces of the chucks (2) are provided with middle annular openings, the middle annular openings of the chucks (2) are provided with raised inclined planes, the middle annular openings of the chucks (2) are butted to form a middle limiting hole, the inclined planes of the chucks (2) are butted to form a trapezoid round platform structure, and the limiting part acts on the inclined planes of the chucks (2); The limiting part comprises a pair of limiting seats (3) with the same structure, bolts are connected between the pair of limiting seats (3), upper annular openings are formed in contact surfaces of the pair of limiting seats (3), the upper annular openings of the pair of limiting seats (3) are butted to form an upper limiting hole, inclined planes are formed in the upper annular openings, the inclined planes of the upper annular openings are smaller than the inclined plane angle of the chuck (2), and the inclined planes of the pair of limiting seats (3) act on the inclined planes of the pair of chucks (2); When the limiting seat is subjected to downward acting force of the tensioning part, the inclined surface is matched with the inclined surface of the extrusion chuck, so that the chuck moves inwards to form uniform radial extrusion on the pipe wall; The tensioning part comprises a pair of pull plates (4) and a pair of nuts (5), wherein one ends of the pull plates (4) are provided with limiting protrusions (8), one ends of the pull plates (4) are respectively inserted into two sides of the lower connecting part, the opposite surfaces of two sides of the limiting seat (3) are respectively provided with a slot, the other ends of the pull plates (4) respectively penetrate through the slots, the other ends of the pull plates (4) are provided with threads, the nuts (5) are in threaded connection with the pull plates (4), and the nuts (5) act on the limiting seat (3) and the pull plates (4).
2. The on-line valve body wind line anti-drop device according to claim 1, wherein the upper surface of the limiting seat (3) is provided with stabilizing protrusions (6) respectively at two sides of the slot, and the stabilizing protrusions (6) are positioned in the nut (5).
3. The on-line valve body wind line anti-drop device according to claim 1, wherein the tensioning part is a clamping plate (7), jacks are formed in two sides of the clamping plate (7), limiting slots are formed in the lower surface of each jack, and one end of the pulling plate (4) penetrates through each jack to enable the limiting protrusions (8) to be inserted into the limiting slots.
4. The on-line valve body wind line anti-drop device according to claim 1, wherein the lower connecting portion comprises a pair of connecting pieces (9) with the same structure, the pair of connecting pieces (9) are connected through bolts, lower annular openings are respectively formed in the contact center of the pair of connecting pieces (9), lower limit holes are formed in the lower annular openings of the pair of connecting pieces (9), insertion holes are respectively formed in the pair of connecting pieces (9), limit slots are formed in the lower surfaces of the insertion holes, and one end of the pull plate (4) penetrates through the insertion holes to enable the limit protrusions (8) to be inserted into the limit slots.

Description

Online valve body wind line anticreep ware Technical Field The invention relates to the field of valve body anti-drop devices, in particular to an online valve body wind line anti-drop device. Background The pneumatic control regulating valve is an important link in an automatic system, and is called as an automatic hand and foot in the production process, and if the regulating valve fails, the valve is not processed in time, the production fluctuation is caused, and the device is stopped when the valve is heavy. The economic loss, environmental pollution and safety accidents caused by the method are immeasurable, and the occurrence of the air line falling-off event of the regulating valve occurs in recent years. For example, the wind line of the fuel air pressure control valve PV51504 of the atmospheric and vacuum device causes abnormal process operation due to excessive vibration frequency. Disclosure of Invention The invention provides an on-line valve body wind line anti-drop device, which solves the production accident caused by abnormal valve body wind line, and realizes the reinforcement of a valve body joint to avoid accident event caused by air source interruption. The technical problems solved by the invention can be realized by adopting the following technical scheme: An on-line valve body wind line anticreeper, comprising: the pair of chassis is connected with a pair of bolts and is provided with a lower limit hole; the clamping part is arranged on the chassis, and a middle limiting hole is formed in the center of the clamping part; The limiting part is arranged on the clamping part, acts on the clamping part and is provided with an upper limiting hole at the center; The top end of the tensioning part is detachably connected with the limiting part; the lower connecting part is detachably connected to the bottom end of the tensioning part; The upper limit hole, the middle limit hole and the lower limit hole are coaxial. Further, the clamping part comprises at least one pair of chucks with the same structure, a bolt is connected between the chucks, a pair of middle annular openings are formed in the contact surfaces of the chucks, raised inclined planes are formed in the middle annular openings of the chucks, the middle annular openings of the chucks are in butt joint to form a middle limiting hole, the inclined planes of the chucks are in butt joint to form a trapezoid round platform structure, and the limiting part acts on the inclined planes of the chucks. Further, the spacing portion includes a pair of spacing seats that the structure is the same, a pair of be connected with the bolt between the spacing seat, a pair of the contact surface of spacing seat is all opened and is gone up annular opening, a pair of the last annular opening butt joint of spacing seat constitutes spacing hole, go up annular opening internal division has the inclined plane, and go up annular opening's inclined plane is less than the inclined plane angle of chuck, a pair of the inclined plane of spacing seat acts on a pair of the inclined plane of chuck. Further, the tensioning portion comprises a pair of pull plates and a pair of nuts, one ends of the pull plates are provided with limiting protrusions, one ends of the pull plates are respectively inserted into two sides of the lower connecting portion, the opposite surfaces of two sides of the limiting seat are respectively provided with a slot, the other ends of the pull plates respectively penetrate through the slots, the other ends of the pull plates are provided with threads, the nuts are in threaded connection with the pull plates, and the nuts act on the limiting seat and the pull plates. Further, stabilizing protrusions are respectively arranged on the upper surface of the limiting seat and located on two sides of the slot, and the stabilizing protrusions are located in the nuts. Further, the tensioning portion is a clamping plate, jacks are formed in two sides of the clamping plate, limiting slots are formed in the lower surfaces of the jacks, and one end of the pulling plate penetrates through the jacks to enable the limiting protrusions to be inserted into the limiting slots. Further, the lower connecting portion comprises a pair of connecting pieces with the same structure, the connecting pieces are connected through bolts, lower annular openings are formed in the contact centers of the connecting pieces, the lower annular openings of the connecting pieces form lower limiting holes, jacks are formed in the connecting pieces, limiting slots are formed in the lower surfaces of the jacks, and one end of the pull plate penetrates through the jacks to enable the limiting protrusions to be inserted into the limiting slots. The clamping device has the beneficial effects that the clamping device clamps the pipe wall through the annular opening of the chuck, so that the problem of expansion of the pipe wall connection part is effectively solved, and meanwhile, the ch