JPH06294468A - Sheet packing detaching tool - Google Patents

Abstract

PURPOSE:To obtain a tool for detaching a sheet packing from a flange seat by inserting a peeling edge between the sheet packing and the flange seat along the flange seat. CONSTITUTION:Peeling edges 1, 1b are arranged on the tip parts of arms 5a, 5b by fixing pins 18 and fulcrums are arranged on the upper end parts of respective arms, and rollers 15a, 15b and the upper end parts of stems 3a, 3b are arranged on respective fulcrums. Rollers 2a, 2b are arranged on the other lower end parts of respective stems and a fulcrum 6 is arranged on a crossing part in X latter shape of respective stems 3a, 3b and the lower end part of a guide arm 7 is arranged on the fulcrum 6 and a screwed rotating part 8 is arranged on the upper end part of the guide arm 7. The upper end part of the guide arm is connected to the tip part of an adjust bolt 9 by arranging the tip part of the adjust bolt 9 on the screwed rotating part and the adjust bolt 9 is arranged on a bolt installation part 12 arranged in nearly central part of a placing stand 11 and a handle 4 is arranged on the upper end part of this adjust bolt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The seat packing removing tool according to the present invention has a peeling blade inserted along the flange seat between the seat packing (gasket) used for valves, boilers, manholes, hand holes, etc. and the flange seat. , A tool for removing the seat packing from the flange seat.

The tool is used not only for removing the seat packing, but also for removing the thrust bearing (fitting type bearing) and attaching / detaching the valve seat including the cage, spacer, bonnet packing (bonnet gasket), etc. Replacement (assembly)
Can be easily done.

[0003]

2. Description of the Related Art Conventionally, a seat packing is removed with a driver, a scraper or the like. Sheet packing is used for the flange seats of the main body such as valves, boilers, manholes, and handholes so that the airtightness is maintained, but the seats placed on the flange seats in the holes of the main body. Since the packing causes the flange seat to rust due to use, it is necessary to peel off the adhesion of the seat packing when the replacement is regularly performed. In particular, if the seat packing that is in close contact with the flange seat is corroded, the seat packing waste will remain on the flange seat unless you remove it before removing it. It must be peeled off and cleaned.

When the seat packing is contaminated with harmful substances such as radioactivity and powerful drugs due to the condition of the main body such as the valve in which the seat packing is actually used, a hand should be put directly on the seat packing for removal. Touching it is dangerous. In order to take out the thing contaminated with harmful substances in a tight place where it is hard to get in from the hole of the main body without directly touching with your hands, use the tool to remove the seat packing placed on the flange seat. It is important that they be used and safely retrieved.

Conventionally, the tips of tools such as screwdrivers and scrapers which have been used to remove the seat packing of the flange seat in a valve that cannot be accessed are straight or slightly bent. Since it cannot be removed from the flange seat by inserting it along with the flange seat between the seat packing and the seat, it sometimes damages it. In a dark hole, the distance is lost and it becomes difficult to see, so when peeling off the adhered objects from the flange seat due to corrosion of the seat packing, keep close attention without damaging the flange seat, which is important for sealing. It was necessary to do so, and there was a drawback that work efficiency was poor with drivers and scrapers.

The operation of replacing (assembling) the quick change type internal valve requires a high degree of accuracy to place the respective parts of the valve. If the valve body is for single seat use, packing (gasket) is used, and the bonnet and cage spacer apply the load necessary to seal the cage seat and the web between the body and bonnet to mount the cage. is there. Briefly explaining the assembly procedure, clean the inner valve, the inner valve seat of the body, and all surroundings before assembly, fit the seat packing (seat gasket) into the seat part of the valve body, and guide the cage of the body. Insert the cage spacers into the cage upper guides, put the bonnet packings in place, and while the cage is stationary, insert the plunger into the cage, and then in the same manner, let the cage and plunger rest. While lowering the bonnet onto the main body, fit it into the fitting part of the main body. It has been desired to develop a convenient tool for easily and quickly inserting each part into the valve body.

[0007]

According to the conventional removal method, when the flange seat cannot be used along with the driver, scraper, etc., the tip of the driver or scraper should be attached to the seat packing closely attached to the flange seat. Since the seat packing that is pressed against and hit with a hammer is used to remove the sheet packing or to crush and take out the debris, this method does not allow the sheet packing that is in close contact with the flange seat to be easily removed. When it becomes a piece, it takes a lot of time to remove these packing scraps. In addition, when the driver or scraper is hit, there is a problem that the seat packing is pierced or the flange seat is erroneously damaged and the sealing property which is the purpose of use of the seat packing is impaired. In the present invention, a technical problem is to remove the seat packing of the flange seat in a state where the driver or scraper is inserted along the flange seat and cannot be removed, easily and in a short time without damaging the flange seat. There is.

[0008]

[Means for Solving the Problems] To remove a seat packing placed on a flange seat in a valve body and in close contact with the seat from the flange seat, the rotational movement by the adjusting bolt is converted into the linear movement of the guide arm. , The two peeling blades provided on the tip of the parallel arms that open and close to the left and right are inserted along the flange seat between the sheet packing and the peeling sheet packing so that the peeled blade is hooked on the peeling blade. It can be taken out without touching it. The two peeling blades are provided at the tip of each arm that is provided in parallel to each other by fixing pins, and a fulcrum is provided at the upper end of each arm. A roller is provided at each fulcrum and each fulcrum is provided. Each handle is provided with an upper end portion, and the other lower end portion of each handle is provided with a roller so that each handle is crossed in an X shape, and a fulcrum is provided at the intersecting point. The lower end portion of the guide arm is provided, and the screw fastening rotating portion is provided at the upper end portion of the guide arm, and the upper end portion of the guide arm is connected to the tip portion of the adjusting bolt via the screw fastening rotating portion. Is a seat packing removing tool in which the adjusting bolt provided on the mounting table is provided at a bolt mounting portion provided at substantially the center of the mounting table, and a handle is provided at the upper end of the adjusting bolt.

This seat packing removing tool is provided with protrusions that are slightly bulged on the lower side surfaces of the arms that open and close in parallel to each other, so that the protrusions are provided inside the valve seat component. Put it in, open the arm and hang it on the protrusion to replace it. In addition to the function of the seat packing removal tool, the function of a replacement assembly tool when the valve seat is attached / detached is provided.

[0010]

In the seat packing removing tool according to the present invention, the rotary motion generated by the operation of the adjusting bolt by the rotation of the handle is converted into the vertical motion by the guide arm, and the fulcrum is formed at the intersection of the two handles. The lower end of the guide arm is provided at its fulcrum, and two arms are provided so as to be opened and closed in parallel by the upper end and the lower end of each X-shaped handle provided at the fulcrum. The spacing between them can be freely changed, and the peeling blades provided at the lower ends of the arms open and are inserted along the flange seat with the seat packing, so that the seat packing is removed from the flange seat. It is designed to be peeled off.

Another function of the seat packing removing tool is to insert the left and right arms closed inside the valve seat parts such as the seat packing, cage, spacer, and bonnet packing when the valve seat is attached and detached. The opening is opened, and the slightly bulging protrusions on the outside of the arm are contacted with the edges of the inner surfaces of the respective parts so that the quick change type internal valve can be easily replaced and assembled.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The attached drawings show an embodiment of a seat packing removing tool according to the present invention.
A seat packing removing tool according to a novel creation of the technical idea of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of a seat packing removing tool, FIG. 2 is a front view of a seat packing removing tool having two peeling blades opened to the left and right, and FIG. 3 is a peeling blade in a hole of a valve. FIG. 4 is a front view of a seat packing removing tool for inserting the seat packing and removing the seat packing.

The reference numerals shown in the drawings will be explained as follows.
a and 1b are peeling blades provided at the lower end of the arm,
2a and 2b are rollers provided at the lower end of the handle,
3a and 3b are patterns intersecting in an X shape at a fulcrum, 4
Is a handle provided on the adjustment bolt, 5a, 5
b is an arm provided on an X-shaped handle for opening and closing in parallel with each other, 6 is a fulcrum provided at a position where two handles intersect in an X-shape, and 7 is a vertical movement of the adjusting bolt. A guide arm for converting into a linear motion, 8 is a screwed rotating portion provided on the guide arm, 9 is an adjusting bolt provided on the screwed rotating portion, and 11 is
A mounting portion that is to be placed on the upper surface of the valve body, 12 is a bolt mounting portion that is provided in the center of the mounting portion,
13a and 13b are roller guides adapted to guide rollers at the upper end of the arm, and 14a and 14b are roller guides adapted to guide rollers at the lower end of each handle, 15
a and 15b are rollers on the upper part of each arm, 16 is a return spring, 17a and 17b are protrusions provided on the lower side surface (outer side) of each arm, and 18 is a peeling blade at the lower end of each arm. Attached fixing pin, 19 is a seat packing placed on the flange seat, 20 is a valve, and 21 is a flange seat in the valve.

The peeling blades 1a and 1b are provided by fixing pins 18 at the respective tip ends of the arms 5a and 5b, and fulcrums are provided at the upper ends of the respective arms, and rollers 15a and 15a are provided at these fulcrums.
15b are provided respectively, and a return spring is provided between the upper ends of both arms. The upper ends of the patterns 3a and 3b are provided on the upper ends of the respective arms, and the rollers 2a and 2b are provided on the other lower ends of the respective patterns. A fulcrum 6 is formed at the intersection of the respective patterns 3a and 3b in an X shape. Is provided, the lower end of the guide arm 7 is provided at the fulcrum 6, and the screwed rotating portion 8 is provided at the upper end of the guide arm. The upper end of the guide arm is provided at the tip of the adjusting bolt through the screwed rotating portion. Connected to. The adjusting bolt 9 provided on the screw-fixing rotating portion is provided with a bolt attaching portion 12 provided substantially at the center of the mounting table 11.
And a handle 4 provided on the upper end of the adjusting bolt.

In this seat packing removing tool, a protruding portion 17a is provided on the lower side surface of the arm 5a by slightly inflating it, and the protruding portion 17b is also provided on the lower side surface of the arm 5b, so that the seat packing can be attached and detached when the valve seat is attached and detached. ，
The protrusions 17a and 17b are applied to the inner edges of the valve seat parts such as the cage, the spacer, and the bonnet packing so that the quick change inner valve can be easily replaced and assembled.

The operation principle of this seat packing removing tool will be described with reference to an embodiment. When the handle 4 of the adjusting bolt is operated, the rotational movement of the adjusting bolt 9 is converted into its linear movement by the guide arm 7. , The arms 5a and 5b respectively provided on the two handles 3a and 3b intersecting in an X shape and sharing the fulcrum 6 provided at the tip end of the guide arm 7 are provided on the roller guide 13.
The left and right sides are opened and closed along a and 13b. When the seat packing removing tool is set on the valve 20 body and the upper handle 4 is turned to the right, the guide arm 7 is moved upward by the rotational movement of the adjusting bolt 9 and the left and right arms 5a and 5b are opened in parallel. The peeling blades 1a and 1b at the lower end are opened to the left and right and are inserted along the flange seat 21, and the peeling blades 1a and 1b peel off the sheet packing 19 that is in close contact with the flange seat 21, and the sheet packing reaches the peeling blade. Since it can be taken out while it is in place, it can be safely taken out of the main body without using hands.
When the peeling blade is to be closed after use, the handle 4 is turned counterclockwise to lower the guide arm, and both open arms are closed. The peeling blades 1a and 1b are attached to the lower end of the arm with a fixing pin 18 separately from the arm because they need to be hardened. It may be quenched, in which case the fixing pin is not used.

Rollers 2a, 2b at the lower end of each handle on the drawing
Is inserted along the roller guides 14a and 14b,
The fulcrum 6 of the handle is raised and lowered by the linear movement of the guide arm 7. However, by making the roller guide a groove vertically long in the arm, the lower end of the handle is attached to the long groove that hits the roller guide so that the lower end passing inside the groove slides up and down. Alternatively, the arm may be prevented from coming off the rollers 2a and 2b.

[0019]

The seat packing removing tool according to the present invention is capable of easily removing the seat packing closely attached to the flange seat in a short time without damaging the flange seat, and sealing the seat packing put in the flange seat. It will retain sex. By the effect of the present invention,
It has a social impact due to the improved work efficiency and economic effect, as well as the safety of avoiding the danger of doing it by hand.

The purpose of using the seat packing removing tool is to use the seat packing without touching the seat packing, and at the same time, to use it for removing thrust bearings. Is used for replacement assembly.

Since the structure of this sheet packing removing tool has a function suitable for these applications, the effect that the work can be performed in a short time is that it is contaminated with poisonous, dangerous liquid, gas, radioactivity and the like. The work time for removing the attached seat packing and the like and for removing and installing the valve seat is short, and the distance is long, so that the operator can easily handle the contaminated object without touching it, and it is versatile and safe to use.

[Brief description of drawings]

[Figure 1] Front view of the seat packing removal tool

FIG. 2 is a front view of a sheet packing removing tool with two peeling blades opened to the left and right.

FIG. 3 is a front view of a seat packing removing tool in which a peeling blade is put in a valve hole to remove a seat packing.

[Explanation of symbols]

 1a, 1b. ． ． Peeling blade, 2a, 2b. ． ． Rollers, 3a, 3b. ． ． Handle, 4. ． ． Handles, 5a, 5b. ． ． Arm, 6. ． ． Fulcrum, 7. ． ． Guide arm, 8. ． ． Rotating part with screws, 9. ． ． Adjustment bolt, 11. ． ． Mounting part, 12. ． ． Bolt mounting portion, 13a, 13b. ． ． Roller guides, 14a, 14b. ． ． Roller guides, 15a, 15b. ． ． Laura, 16. ． ． Return springs, 17a, 17b. ． ． Protruding portion, 18. ． ． Fixing pin, 19. ． ． Seat packing, 20. ． ． Valve, 21. ． ． Flange seat.

Claims (2)

[Claims] 1. Peeling blades 1a, 1b are provided at the tips of arms 5a, 5b by fixing pins 18, fulcrums are provided at the upper ends of the arms, and rollers 15a,
15b is provided, the upper ends of the handles 3a, 3b are provided at the respective fulcrums, and the rollers 2a, 2 are provided at the other lower ends of the handles.
b is provided, a fulcrum 6 is provided at a position where the respective handles 3a, 3b are made to intersect in an X shape, the lower end of the guide arm 7 is provided at the fulcrum 6, and the upper end of the guide arm 7 is screwed. The rotating part 8 is provided so that the upper end of the guide arm is connected to the tip of the adjusting bolt via the screwing rotating part, and the adjusting bolt 9 provided on the screwing rotating part is mounted on the mounting table 11. A seat packing removing tool, characterized in that it is provided on a bolt mounting portion 12 provided at a substantially central portion, and a handle 4 is provided on an upper end portion of the adjusting bolt. 2. A seat bulge, a cage, a spacer, etc. when the valve seat is attached and detached by providing a protruding portion 17a slightly bulging on the lower side surface of the arm 5a and also providing the protruding portion 17b on the lower side surface of the arm 5b. The seat according to claim 1, wherein the inner edge of a valve seat component such as a bonnet packing is applied to the projecting portions 17a and 17b, respectively, so that replacement and assembly of the quick change inner valve can be easily performed. Packing removal tool.