CN200939593Y

CN200939593Y - Flange extender

Info

Publication number: CN200939593Y
Application number: CN 200620087931
Authority: CN
Inventors: 隋迎章; 石军; 宋自恒; 王志强; ***; 王玉英
Original assignee: Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Current assignee: Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Priority date: 2006-08-11
Filing date: 2006-08-11
Publication date: 2007-08-29
Anticipated expiration: 2016-08-11

Abstract

The utility model relates to a flange spreader, which is composed of a bolt, a mobile hook, a locating hole, a casing, a fixing hook, a spring, a locating pin and a tension hookup. The utility model is characterized in that the bolt is connected with the thread of the mobile hook, and is embedded into the casing; the casing is fixed horizontally by two acute right triangle steel plate and welded onto the center of a rectangle flat steel plate; a rectangle locating-pin steel plate is welded vertically on the outer-edge of the center of the bottom surface of the flat steel plate; a plate right-angle fixing hook is welded inward in the locating-pin steel plate; a coaxial locating-pin hole is arranged at the locating-pin steel plate and the fixing hook respectively; the locating pin is inserted into the two holes; a spring pressing board is arranged in the middle and upper part of the locating pin, provided with a spiral spring underneath; a locating hole is positioned on the mobile hook, which is coaxial with the locating-pin hole on the fixing hook.

Description

Flange spreader

One, technical field

The utility model relates to a kind of used flange spreader of flange gasket of changing.

Two, background technology

Connecting each link with flange in technological process is current techique, connect efficient and convenient, but weak point is that the sealing gasket of changing between the flange is cumbersome, because elastic force is very big between the tube and tube, pry open that flange is taken out old sealing gasket or the new very difficulty that puts in all, want a personal crowbar to pry open certain slit, another person robs old sealing gasket out with screwdriver, again the seal groove of flange is cleaned out, change Xinmi City's packing again, sometimes owing to gap between two flanges is little, flange again by sled partially, Xinmi City's packing is just being put not, change several times and all get nowhere, sometimes crowbar skid also people's hand is squeezed bad, with this stupid way replacing flange gasket, waste time and energy, success rate is very low and dangerous.

Three, summary of the invention

The purpose of this utility model provides a kind of flange spreader, solves the problem of the replacing flange gasket difficulty of above-mentioned prior art existence.

The technical solution of the utility model realizes in the following manner:

The utility model is by bolt, movable hook, locating hole, sleeve pipe, stay hook, spring, alignment pin and draw ring are formed, it is characterized in that bolt links to each other with the movable hook screw thread, link to each other with the cover pipe built, sleeve pipe is welded on the center of a rectangle plain plate by two acute angle right angled triangle steel plate horizontal fixed, a rectangle alignment pin of vertical welding fixation steel plate on the outside, center below plain plate, inwardly weld a board-like right angle stay hook in its inside, at the alignment pin fixation steel plate with above the stay hook, on concentric, be respectively equipped with dowel hole, in two holes, be inserted with alignment pin, the alignment pin middle and upper part is provided with spring bearer plate, below spring bearer plate, be with helical spring, on movable hook, be provided with locating hole, with the dowel hole concentric on the stay hook.

Movable hook is board-like square, and the right-angle side with locating hole is not welded on the nut that mates with bolt.

The bottom of bolt is made as hollow cylindrical, and its bottom outwards is made as three arc pawls, and arc dog collar face is that three faces of cylinder of cracking are arranged, and its diameter equals sleeve pipe bottom internal diameter, greater than sleeve pipe upper end internal diameter.

Be provided with the supporting positive cover of a level welding in the sleeve pipe front, the supporting positive cover internal diameter is slightly larger than the external diameter on three arc pawl tops, with sleeve pipe and bolt concentric.

Compared with the prior art the utility model has the following advantages:

1, principle is reliable, rational in infrastructure, simple to operate, easy to use.

2, it is big to open the moment of flange seam, and it is big to open the slit, changes the safe and efficient success rate height of flange gasket.

Four, description of drawings

Fig. 1-the utility model structural representation

The vertical view of Fig. 2-Fig. 1

1-bolt 2-movable hook 3-locating hole 4-sleeve pipe 5-stay hook 6-spring 7-alignment pin 8-draw ring among the figure

Five, the specific embodiment

Be further openly the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description 1,2:

As shown in Figure 1, the utility model is made up of bolt 1, movable hook 2, locating hole 3, sleeve pipe 4, spring 6, alignment pin 7 and draw ring 8.Bolt 1 is threaded with movable hook 2, with 4 embedded linking to each other of sleeve pipe, sleeve pipe is welded on a rectangle plain plate center (shown in Figure 2) by two acute angle right angled triangle steel plate horizontal fixed, a rectangle alignment pin of vertical welding fixation steel plate on the outside, center below plain plate, inwardly weld a board-like right angle stay hook 5 in its inside, on alignment pin 7 fixation steel plates and stay hook 5 concentrics, be respectively equipped with dowel hole, in two holes, be inserted with alignment pin 7, be provided with spring bearer plate in the alignment pin middle and upper part, below spring bearer plate, be with helical spring 6; On movable hook, be provided with locating hole 3, with the dowel hole concentric on the stay hook, when using the utility model, rotating bolt or press down bolt sticks together movable hook and stay hook, it is inserted in the flange slot, each inserts one at correspondence position, twists nuts simultaneously, and stay hook is pressed on the lower flange motionless, the movable hook hook on the upper flange and is moved, move on to the correct position of changing flange gasket, two flange spreaders stop simultaneously, more finish changing flange gasket, with the bolt reverse rotation, lay down load, take off flange spreader and get final product, when expanded flange, must pull draw ring 8, alignment pin 7 is moved backward, make the locating hole 3 on its aligning movable hook, the draw ring 8 of loosing one's grip again, alignment pin 7 is under the effect of spring 6, inject in the locating hole 3 of movable hook, will open that flange is decided to be vertically upward or direction vertically downward, make the lower flange non-migration, assurance is replaced the flange gasket non-migration, guarantees success rate.

Claims

1, a kind of flange spreader, by bolt, movable hook, locating hole, sleeve pipe, stay hook, spring, alignment pin and draw ring are formed, it is characterized in that bolt links to each other with the movable hook screw thread, link to each other with the cover pipe built, sleeve pipe is welded on the center of a rectangle plain plate by two acute angle right angled triangle steel plate horizontal fixed, a rectangle alignment pin of vertical welding fixation steel plate on the outside, center below plain plate, inwardly weld a board-like right angle stay hook in its inside, at the alignment pin fixation steel plate with above the stay hook, on concentric, be respectively equipped with dowel hole, in two holes, be inserted with alignment pin, the alignment pin middle and upper part is provided with spring bearer plate, below spring bearer plate, be with helical spring, on movable hook, be provided with locating hole, with the dowel hole concentric on the stay hook.

2, flange spreader according to claim 1 is characterized in that described movable hook is board-like square, and the right-angle side with locating hole is not welded on the nut that mates with bolt.

3, flange spreader according to claim 1, the bottom that it is characterized in that described bolt is made as hollow cylindrical, and its bottom outwards is made as three arc pawls, and arc dog collar face is that three faces of cylinder of cracking are arranged, its diameter equals sleeve pipe bottom internal diameter, greater than sleeve pipe upper end internal diameter.

4, flange spreader according to claim 1 is characterized in that the described supporting positive cover that is provided with a level welding in the sleeve pipe front, and the supporting positive cover internal diameter is slightly larger than the external diameter on three arc pawl tops, with sleeve pipe and bolt concentric.