JPH0616653Y2 - Rotation aids for underground structures - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotation assisting tool used for removing a structure buried underground, for example, a cylinder of a screw-type water control valve casing, for tightening, raising or lowering the volume. is there.

An object of the present invention is to provide an auxiliary tool capable of easily turning a screw portion of a screw-type underground structure whose turning and loosening operation is difficult due to adhesion and entry of earth and sand and corrosion of the screw portion. .

The above-mentioned purpose is that the cylinders a, a ′ are buried underground and screwed together.
Is an auxiliary tool for rotating a frame b integral with the upper cylinder a'of the above, and has a plane shape that fits into a substantially trifurcated opening c provided on the upper surface of the frame b, and is located between the three forks of the opening c. It has a shift-preventing slanted side 6 engageable with one side edge at one end, is engageable with the other side edge of the opening c facing the one side edge, and is formed on the other side edge. A main body 5 having a fitting portion 2 whose slope is adapted to the inclination of the taper-shaped lid receiving portion f, which is prevented from falling from the opening c, and upper and lower sides of the one side edge of the opening c, can be engaged with each other. The engaging portion 1 provided in one end of the main body 5 having a substantially U-shaped cross section and the projecting piece 9 provided on the side portion of the fitting portion 2 are rotatably pivotally supported, and an opening edge at the time of outward rotation. A lock member 3 projecting so as to be engageable with the lower surface, and a pair of rotational operation members fixed to the upper surface of the main body in a substantially V-shape that is symmetrical with respect to an axis for rotating the main body 5. It is achieved by arrangement of and a bundle members 4.

In the illustrated embodiment, the female screw portion of the upper cylinder a'and the lower cylinder a '
The present invention relates to a so-called internal screw type valve casing in which a male screw portion is screwed, and is a rotation assisting tool for engaging and rotating a frame b which is integral with an upper cylinder a '. The frame b has a substantially three-pronged opening c on the top surface, which is composed of a deep recess c ′ and a shallow recess c ″, and the engaging portion 1 of the auxiliary tool body 5 is provided in the shallow recess c ″ in the deep recess c ′. The fitting part 2 is fitted. Reference numeral e denotes a three-point support type lid that covers the opening c. The auxiliary tool attached to the opening c has an engaging portion 1 having a substantially U-shaped cross section on one side of the main body 5, and the opening c on both sides thereof.
Has a plane shape having a slanting slanting side 6 that can be engaged with, and has a fitting portion 2 having a plane shape that fits with the deep recess c ′ on the other side of the main body, and its left and right side edges 7 , 8 are in contact with the side walls of the deep recess c ', and the side edges 7, 8 are formed into slopes that match the slope of the tapered lid receiving portion f to prevent the side walls from falling. A projecting piece 9 is provided on the fitting portion 2 side of the main body 5, and a lock member 3 horizontally rotatably attached thereto through a thumbscrew 10 engages with the lower surface of the opening edge to pull out the fitting portion 2. It is designed to prevent In the figure, reference numeral 11 is a protrusion provided on the lower surface of the fitting portion 2 and is inserted into a small hole d of a receiving metal fitting h provided for locking the hinge metal fitting g of the lid e to the frame b.
Is a reinforcing piece of the handle members 4 and 4 erected on the upper surface of the main body 5, which is also a portion hit by a hammer or the like for rotation. Reference numeral 13 denotes a handle rod which is used by connecting to the handle members 4 and 4 formed in a tubular shape, and a reinforcing member 13 ′ is fitted and inserted at the lower end of the handle rod 13. It should be noted that the handle members 4 and 4 are arranged such that their intersections are substantially in the center of the frame b. 2a indicates the tip of the fitting portion 2.

The rotation assisting tool having the above-described configuration is provided with a substantially U-shaped engaging portion 1
Is engaged with the opening edge on one side of the opening c and applied, and the main body 5 is held in the opening c. The lock members 3 on both sides of the fitting portion 2 having a narrow width are stored in the main body 5 in a state of being retracted toward the main body, and then project and engage outward.

The main body 5 of the rotation assisting tool engages with one side edge of the opening c of the underground structure at the engaging portion 1, and the fitting portion 2 that engages with the other side edge of the opening c has a left side and a right side thereof. Since the lock members 3 and 3 are also engaged, the main body 5 is in a state in which it cannot be rotated nor pulled out upward with respect to the opening c.

Therefore, when the handle member 4 attached to the main body 5 is operated, the operating force is directly transmitted to the frame b of the underground structure.

Therefore, according to the present invention, if the handle members 4 and 4 are directly or respectively connected to the handle rods 13 and a force is applied thereto, the mutually screwed cylinders a and a'can be rotated in a direction to be loosened. Since both cylinders a and a'are located in the ground, they are often rusted by moisture or clogged with the inflowing earth and sand and often cannot be easily removed. Since the lock member 3 can be engaged with the frame b so that the lock member 3 has the fitting portion 2 and does not fall off during operation and does not drop, the force for operating the handle members 4 and 4 can be reliably applied to the frame. It is transmitted to b, and there is an effect that the screwing can be easily loosened and rotated.

[Brief description of drawings]

FIG. 1 is a perspective view of an underground structure rotation assisting tool according to the present invention. FIG. 1 is an overall perspective view, FIG. 2 is an enlarged perspective view, FIG. 3 is a cross-sectional view of a state of use, and FIG. 4 is a plan view. is there. a, a '... Cylinder, b ... Frame, c ... Engaging portion, 2 ... Fitting portion, 3 ... Lock member, 4 ... Handle member.

Claims (2)

[Scope of utility model registration request] 1. Tubes a, a'buried underground and screwed together.
Is an auxiliary tool for rotating a frame b integral with the upper cylinder a'of the above, and has a plane shape that fits into a substantially trifurcated opening c provided on the upper surface of the frame b, and is located between the three forks of the opening c. It has a shift-preventing slanted side 6 engageable with one side edge at one end, is engageable with the other side edge of the opening c facing the one side edge, and is formed on the other side edge. A main body 5 having a fitting portion 2 whose slope is adapted to the inclination of the taper-shaped lid receiving portion f, which is prevented from falling from the opening c, and upper and lower sides of the one side edge of the opening c, can be engaged with each other. The engaging portion 1 provided in one end of the main body 5 having a substantially U-shaped cross section and the projecting piece 9 provided on the side portion of the fitting portion 2 are rotatably pivotally supported, and an opening edge at the time of outward rotation. A lock member 3 projecting so as to be engageable with the lower surface, and a pair of rotational operation members fixed to the upper surface of the main body in a substantially V-shape that is symmetrical with respect to an axis for rotating the main body 5. Turning aid of underground structures, characterized in that it comprises a bundle members 4. 2. The underground as claimed in claim 1, wherein the pair of handle members 4 and 4 are cylindrical members, and the handle rod 13 is detachably connected to the upper end of each of them. A turning aid for structures.