JP6215422B1 - Articulated block suspension - Google Patents

Abstract

A lifting device main body having an insertion rod and a rotation stopper for mounting a plurality of block suspension wires of an appropriate length from a long body provided with a slinging wire to attach to a joint block. Is connected to the block suspension wire 12, and the block is suspended by the crane transporting in the crane machine in the articulated block suspension tool in which the block is installed by transporting the block to the installation location of the accumulation place by the clay machine. To provide a lifting device that can achieve accurate installation work. An interval holding body 3 in which a block hanging wire 12 penetrates at a predetermined interval is interposed between a long body 1 and a hanging body 2 and the interval holding body 3 is attached to the top of the hanging body 2 or in the vicinity of the top. And is provided so as to be able to be suspended and connected to the long body 1 in the vicinity of the long body 1 [Selection] FIG.

Description

  The present invention relates to a hanging tool used for articulated block extension work employed in river revetment work, slope covering work, and the like.

  The articulated block is arranged in a staggered manner and connected and fixed by reinforcing bars (tie wires). The articulated block has a corresponding weight (several tens of kg), so it can be lifted by a crane machine. Transport and install at the specified installation location.

  In the lifting and transporting, an appropriate lifting tool is used, and the lifting tool is composed of a lifting member body and a suspension member such as a chain that can be suspended by a crane machine. The hanger body is provided with an insertion rod inserted into the connecting hole of the articulated block and a rotation stopper for suppressing the block into which the insertion rod is inserted.

  In particular, in order to improve work efficiency, a hanging tool that suspends and arranges a plurality of blocks has been proposed. For example, FIG. 10 of Patent Document 1 (Japanese Patent Laid-Open No. 9-202586) discloses an instrument in which a suspension body is suspended by six chains on a long body (H steel) provided with a sling wire. ing.

  Further, Patent Document 2 (Japanese Patent Application Laid-Open No. 2008-222411) discloses an instrument in which a long body is provided with a plurality of insertion vertical hooks and a rotation stopper without adopting a single hanger body. .

JP-A-9-202586. Japanese Patent Application Laid-Open No. 2008-222411.

  When adopting a structure that suspends a plurality of suspension tool bodies as shown in Patent Document 1, the structure of the device itself is simple and the articulated blocks are accurately aligned at the block accumulation location that is the transportation source. Even if it is not, it is easy to mount the hanger body to the articulated block. However, if each articulated block suspended during the installation work shakes apart, accurate positioning is troublesome.

  On the other hand, in the instrument provided with a plurality of plugs shown in Patent Document 2, the manufacture of the instrument is cumbersome, and it is necessary to perform an alignment that coincides with the installation arrangement in advance at the collection location, and the entire work Considering the efficiency of this, it is not necessarily a useful instrument.

  In view of this, the present invention proposes a hanging tool capable of accurately and easily performing the mounting work of the articulated block at the accumulation location and the installation work at the construction location.

  The articulated block lifting device according to claim 1 of the present invention is a plug that is attached to a articulated block by suspending a plurality of appropriately suspending wires from a long body provided with a sling wire. In addition, in the articulated block hanger formed by connecting a hanger body provided with a rotation stopper to the block hanger wire, each block hanger wire penetrates at a predetermined interval between the elongated body and the hanger body. In addition to interposing a holding body, the interval holding body is provided to be collision-locked at the top of the hanger body or in the vicinity of the top and to be connected to the long body at a position near the long body. It is what.

  Thus, the above-mentioned lifting tool is used to hang a crane hook on a sling wire and lift and convey the articulated block from the accumulation location to the installation location by a crane machine. It is used by switching between a lifting connection state in the vicinity of the long body and a collision locking state in which the connection state is released.

  Prior to the start of transportation of the articulated block, the spacing body is in a lifted and connected state, the hanger body is moved to the block stacking position, lowered to a height where the block hanger wire is loosened, and the hanger body is attached to the connecting block. Next, the distance holding body is lowered to the ground to release the connection with the long body, and the articulated block is lifted and transported in this state. Since the connection state of the interval holding body is released during the transporting operation, the interval holding member is lowered to the position of the lifting tool main body or the vicinity thereof with the lifting operation of the articulated block, and is collided and locked.

  Therefore, when lifting and transporting articulated blocks, the articulated body (= articulated block) is held at a fixed distance by the distance holder, and if it is lowered with a crane at the installation location, Will be installed. When the articulated block has been installed, once the block suspension wire is loosened, the distance holder is lifted and connected to the lowered long body, and the suspension body is removed from the block that was installed when the block suspension wire was still loose. Is removed, lifted to the block accumulation point and moved to the next block transportation and installation work.

  In addition, the articulated block suspension tool according to claim 2 of the present invention is particularly designed with six block suspension wires with an equivalent interval, and can carry and install three blocks at the same time, except for both ends. Four blocks can be used to work on two blocks simultaneously.

  In addition, the articulated block suspension tool according to claim 3 of the present invention is provided with a length adjusting mechanism for adjusting the distance between the block suspension wires at the center position of the distance holding body. By adjusting the distance, it is possible to correspond to the curve arrangement of the block.

  In addition, the articulated block lifting device according to claim 4 of the present invention is configured by providing a collision locking structure of the spacing member with a locking hole for fitting and locking the wire connecting portion of the lifting device main body. When the block lifting operation is performed in a state in which the suspension connection of the distance holding body is released, the top portion of the hanging metal fitting body is fitted into the locking hole and is naturally locked.

  The configuration of the present invention is as described above, and in a lifting device provided with a wire for suspending a plurality of articulated blocks on a long body, a simple structure in which a wire spacing holder is interposed in the middle, and a crane carrying state As a result, it is possible to accurately align and improve the work efficiency.

The front view of the embodiment of the present invention. The figure (block lifted state). FIG. Explanatory drawing of the work state (before block mounting). In the figure (block mounted state), (a) is a side view (b) is a perspective view. Explanatory drawing of the latching state of the space | interval holding body. The front view (another example of a block lifting state).

  Next, embodiments of the present invention will be described. The articulated block suspension shown in the embodiment is directed to a articulated block A in plan view (hereinafter referred to as a “block”) A called A-type, and the present invention is adapted to suspend three or two. Is basically composed of a long body 1, a hanger body 2, and a spacing body 3, and the members are connected by a hanging wire or the like.

  The long body 1 is of an appropriate length (5 m for hanging three) made of an appropriate standard H steel (standard indication 150 × 75 × 5 × 7 mm), and a sling wire 11 is connected to the upper surface. Thus, the crane machine B can be lifted and transported.

  On the lower surface of the long body 1, six block suspension wires (hereinafter referred to as “block wires”) 12 and a retainer hook 13 that suspends the spacing member 3 are suspended. The block wires 12 are provided at intervals corresponding to the positions of the connecting through holes of the block A corresponding to the installation intervals of the three blocks A. The length of the block wire 12 is about 2 m, and the hanger body 2 is connected to the lower end. It is a thing. Also, the holding body hooks 13 are provided at two or more places on the left and right target portions of the long body 1 and have a length depending on about 30 to 40 cm, and the tip can be attached to and detached from the collar receiving portion 32 of the interval holding body 3 described later. It is provided in a simple structure.

  The lifting device body 2 has an insertion rod 22 having a structure that can be inserted into the connecting through hole of the block A from the lower end of the vertical plate-like suspension support portion 21 and projects above the insertion rod 22. A hook-like stopper portion 23 is pivotally connected to the upper side of the insert rod 22 so as to be rotatable. In particular, a mountain-shaped through hole 24 is formed at the upper end of the suspension support portion 21 to connect the lower end of the block wire 12.

  The interval holding body 3 is formed of a rectangular steel pipe rectangle having a length corresponding to the length of the long body 1 (standard indication 4.5 × 150 × 80). In order to hold the interval between the block wires 12, A passage hole 31 through which the wire 12 passes is provided and interposed between the upper and lower parts of the elongated body 1 and the hanger body 2. In particular, the lower passage hole 31a of the passage hole 31 is formed in such a size and shape that the upper end portion of the hanger body 2 (the portion of the mountain-shaped through hole 24 connecting the block wires 12) is fitted.

  On the upper surface, a hook receiving portion 32 for holding the holder hook 13 is provided, and a length adjusting mechanism portion 33 is provided at the center position. For example, the length adjusting mechanism unit 33 intermittently inserts a prismatic body 332 having a plurality of connecting holes 331 into the spacing holder 3 so as to be freely detachable, and also provides bolt holes 333 in the spacing holder 3. A nut 335 is screwed into a bolt 334 penetrating the body 332 and the interval holding body 3.

  Next, the operation of transporting and installing the block A from the accumulation location to the installation location using the above-described lifting tool will be described.

  The lifting tool is a device that connects the sling wire 11 to the crane hook of the crane machine B and performs each work in a state where the long body 1 is constantly suspended. 1 is lowered and the holder hook 13 is hooked on the hook receiving portion 32 of the interval holder 3. Then, the entire suspension is lifted and moved to the block stacking location (FIG. 4: transport work start state / installation work end state).

  Therefore, the suspension wire body 2 is attached to the block A by lowering the block wire 12 to a height at which the block wire 12 is sufficiently loosened so that the attachment work of the suspension body 2 to the block A can be performed.

  Next, the distance holding body 3 is lowered to the ground, the holding body hook 13 is removed from the hook receiving portion 32, and the block A is lifted and transported. At this time, the interval holding body 3 is in a free-fall state, so that the interval holding body 3 collides with the lifting device main body 2 and finally collides with lifting of the lifting device.

  When the interval holder 3 collides with the hanger body 2, the top of the hanger body 2 is fitted to the lower passage hole (locking hole) 31a by the weight of the interval holder 3, and the holding interval body 3 becomes the hanger. The main body 2 is locked (FIGS. 5 and 6).

  The distance holding body 3 and the lifting tool body 2 are lifted and transported to the block installation location in the locked state, and the block is lowered and installed at the installation location. That is, since the hanger body 2 (= joint block A) is held at a constant interval by the interval holder 3, the block A is transported and installed at a constant interval without causing lateral displacement.

  When the installation work of the block A is finished, the long body 1 is lowered to a height at which the holder hook 13 can be hooked, the holder hook 13 is hooked on the hook receiving portion 32 and pulled up, and the interval holder 3 becomes an obstacle. After lifting up to a state where it does not become necessary, the lifting tool main body 2 is removed from the installed block A, and the entire lifting tool is lifted, and the block stacking portion is still swiveled to start the next transport operation.

  As described above, since the position of the hanger body 2 is held constant by the interval holding body 3 in the swivel transportation work of the plurality of blocks A, the hanger is installed as it is because the interval does not change due to the shaking of the block. It can do work.

  Moreover, although the said description demonstrated in the example of the conveyance installation operation | work of the three blocks A at once, in the said embodiment, the conveyance of two blocks A is also possible, and in that case, the block wire 12 (suspender) It can be carried out by lifting two blocks with four pieces excluding both ends of the main body 2) (FIG. 7).

  In particular, when the block A is arranged in a curved surface, the block spacing differs from that in the case of the planar arrangement. In this case, adjustment by the length adjustment mechanism unit 33 (change of the insertion length of the prismatic body 332) is supported. can do.

  For example, the locking of the gap holder 3 and the hanger body 2 is not limited to the engagement locking of the locking hole (lower passage hole 31a), and can be performed by simple collision locking, or the top of the hanger body 2 A configuration may be adopted in which an appropriate stopper protruding portion is provided on the nearby block wire 12 to perform collision locking.

  Further, the configuration of the lifting device body 2 is completely arbitrary, and any structure may be used as long as the block A can be attached and detached. The structure may correspond to the standard / shape of the articulated block to be used. It is also optional to use a lifting tool corresponding to the number of blocks for a single transport installation work, and the number of members and the size configuration may be determined according to the number of work blocks.

DESCRIPTION OF SYMBOLS 1 Long body 11 Sling wire 12 Block (hanging) wire 13 Holding body hook 2 Suspension tool main body 21 Suspension support part 22 Insertion hook 23 Saddle-like stopper part 24 Mountain-shaped through-hole 3 Space | interval holding body 31 Passing hole 31a Lower passing hole (Locking hole)
32 鉤 receiving portion 33 length adjusting mechanism portion 331 connecting hole 332 prismatic body 333 bolt hole 334 bolt 335 nut

Claims (4)

  A plurality of block suspension wires with appropriate lengths are suspended from a long body provided with sling wires, and the main body of the suspension equipped with an insertion rod and a rotation stopper attached to the articulated block is connected to the block suspension wire. In the articulated block hanger, an interval holding body through which each of the block hanging wires penetrates at a predetermined interval is interposed between the long body and the hanger body, and the interval holding body is a top portion of the hanger body. Alternatively, the articulated block suspension device is provided so as to be able to be suspended and connected to a long body in the vicinity of the long body by being collided and locked near the top.   The suspension tool for articulated blocks according to claim 1, wherein the number of the block suspension wires is six at regular intervals.   The articulated block suspension tool according to claim 1 or 2, wherein a length adjusting mechanism for adjusting the distance between the block suspension wires is provided at a central position of the distance holder.   4. The articulated block suspension device according to any one of claims 1 to 3, wherein the collision retaining structure of the spacing member is provided with an engagement hole in which a wire connection portion of the suspension device is fitted and locked.