JPH072378U - Block lifting equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a concrete block hoisting tool having a simple structure and capable of easily hoisting blocks having different gripping widths. [Structure] A plurality of pairs of holding width adjusting holes 2 are provided in a facing state on a hanging beam body 1, a pair of holding width adjusting holes 2 is selected, and a holding arm pair 3 in which a locking piece 3'is hung vertically in a facing state. A guide square tube 5 in which the lifting beam cylinder 1 is fitted on the lifting beam body 1 and is pivotally mounted by the adjustment pin 4.
And the upper suspension link 8 with the guide pieces 10 and 10 attached to the other end is attached to the left and right ends of the horizontal link 7 provided on the up-and-down angle tube 6 and the adjustment link 11 is provided between the guide pieces 10 and 10. The upper end of the is inserted and the extended lower end and the tip 3 ″ of the holding arm 3 are pivotally attached, and the upper suspension link 8 and the adjustment link 11 are fixed to the holding width adjusting hole 2 in correspondence with each other. A plurality of pairs of adjustment holes 13 and adjustment engagement holes 14 fixed by pins 15 are provided, and a suspension ring 16 is provided at the shaft attachment portion of the horizontal link 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete block lifting device.

[0002]

[Problems to be solved by conventional techniques and devices]

 Concrete blocks such as inverted U-shaped gutters with closed tops are often used, but there was no easy-to-use block hoisting tool to hoist such gutter blocks. The applicant focused on the fact that such a concrete block has a rectangular window hole on the upper surface, and researched whether there is a method of lifting using this window hole, and completed the present invention.

[0003]

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

A plurality of pairs of holding width adjusting holes 2 are arranged in parallel on the left and right sides of the lifting beam body 1, and a pair of holding width adjusting holes 2 is selected to hold the locking pieces outward at the lower end in the facing state. The holding arm body 3 having the 3'projected is axially attached by the adjusting pin 4 and the tip 3 "of the holding arm body 3 is projected obliquely upward, and the guide square tube 5 is provided at the center of the lifting beam body 1. The guide square cylinder 5 is erected, and the lifting and lowering angle cylinder 6 is fitted on the guide rectangular cylinder 5. The upper ends of the upper suspension links 8 are axially attached to the left and right ends of the horizontal links 7 attached to the lifting and lowering angle cylinder 6 with pins 9. The guide pieces 10, 10 are provided on the upper and lower edges of the other end of the upper suspension link 8, and the upper ends of the adjustment links 11 that slide using the guide pieces 10, 10 as guides are inserted between the guide pieces 10, 10. Are attached to the upper suspension link 8 and the lower ends of the left and right adjustment links 11 and the tip 3 "of the holding arm 3 are pivotally attached by the pivot pin 12 to form the upper suspension link 8 and A plurality of pairs of adjusting holes 13 and adjusting engaging holes 14 are provided for adjusting the distance between the pin 9 and the pivot pin 12 in correspondence with the holding width adjusting hole 2 and fixing both by a fixing pin 15. The present invention relates to a block hoisting tool, characterized in that hoisting rings 16 are provided on the left and right pins 9.

[0005]

[Action]

 When the left and right holding pieces 3'are inserted into the window holes in the upper part of the block a and the suspension rings 16 and 16 are suspended, the elevating and lowering angle tube 6 ascends using the guide angle tube 5 as a guide, and the horizontal link 7 ascends. , The left and right upper suspension links 8 connected integrally with a fixing pin 15, and the adjusting link 11 causes the other ends 3 "of the holding arm 3 to rotate inwardly about the adjusting pin 4 as axes and hold the holding piece 3 '. , 3'open outward to support the lower end lower surface of the window hole of the block a, and the block a is lifted as the suspension rings 16, 16 are further raised.

When lowering the suspended block a, the suspension rings 16 and 16 are lowered to ground the bottom part of the block a to a predetermined location and set to a predetermined position, and the suspension rings 16 and 16 are further lowered. Since the up-and-down angle cylinder 6 descends on the guide square cylinder 5 and the horizontal link 7 descends, the holding mechanism 3 ', 3'rotates inward by the link mechanism, and the holding pieces 3', 3'block. Since the holding of a is eliminated, lift the suspension rings 16 and 16 and remove the block suspension from the block a.

When the inner suspension width of the block a is different, the left and right fixing pins 15 are removed to release the connection between the upper suspension link 8 and the adjustment link 11, and then a pair corresponding to the inner suspension width of the block a is removed. Select the gripping width adjustment hole 2 and attach the lifting beam body 1 and the holding arm bodies 3 and 3 with the adjustment pins 4 and 4, and use the left and right adjustment links 11 as guides and 10 as the upper suspension. By sliding on the link 8 and fixing a set of adjusting holes 13 and adjusting engaging holes 14 corresponding to the inner hanging width of the block a with fixing pins 15 and connecting them to the integrated body, operate in the same manner as above. The block a is hoisted, moved, lowered, and set.

[0008]

【Example】

 The drawings show a preferred embodiment of the present invention, and show a block hoisting tool which can accommodate two kinds of gutter blocks having rectangular window holes having different inner diameters.

A plurality of pairs of gripping width adjusting holes 2 are arranged in parallel at a predetermined width interval in a state where the center line of the hoisting beam body 1 is distributed to the left and right hoisting beam body 1 formed of H-shaped steel.

In the embodiment, a case is shown in which two pairs of left and right holding width adjusting holes 2, 2, 2 ', 2'are bored in the holding width adjusting hole 2 by centrally allocating the lifting tool.

A pair of the gripping width adjusting holes 2 is selected and a holding pin 3 having an engaging piece 3'protruding outward at its lower end is axially attached by an adjusting pin 4 in a facing state.

In the illustrated embodiment, the side plates 3 ₁ , 3 ₁ of the holding arm body 3 are fitted in parallel to the outside of the front and rear flanges 1 ′, 1 ′ of the hoisting beam body 1 to form side plates 3 ₁ , 3 _1. Project the lower end of the block toward the outside, and hang a flat plate on this projecting part to form a locking piece 3'for supporting the block a. The tips 3 ", 3" of the side plates 3 ₁ , 3 ₁ are slanted. Project upwards.

A guide square cylinder 5 is erected in the center of the hoisting beam body 1, a lifting angle cylinder 6 is fitted on the guide rectangular cylinder 5, and the lifting square cylinder 6 is attached to the front and rear surfaces near the top. The upper ends of the upper suspension links 8 are attached to the left and right ends of the horizontal link 7 by pins 9 respectively, and guide pieces 10, 10 are provided at the upper and lower edges of the other end of the upper suspension link 8 to provide the guides. The upper ends of the adjustment links 11 that slide using the guide pieces 10, 10 as guides are inserted between the pieces 10, 10 and are attached to the upper suspension link 8, and the lower ends of the left and right adjustment links 11 and the holding arm 3 are provided. The tip end 3 "of the holding member is pivotally attached by a pivoting pin 12 through a spacer 12 ', and a pair of opposing holding width adjusting holes 2 are selected to hold the holding arm body 3 to the lifting beam body 1 with an adjusting pin 4 and pivot. The upper suspension link 8 is provided with a plurality of pairs of adjusting holes 13 for adjusting and fixing the distance between the pins 9 and the pivotally attaching pins 12 when they are worn. That modulate engagement hole 14, both being drilled in the regulation link 11 was fixed by fixing pins 15, provided hanging ring 16 to the left and right pin 9.

In the embodiment, the left and right adjusting holes 13 and 13 and the adjusting engaging holes 14 and 14 with respect to the holding width of the block a corresponding to the holding width adjusting holes 2 and 2 are provided on the upper suspension link 8 and the adjusting link 11. , 11 and are fixed with fixing pins 15, 15 to connect the upper suspension link 8 and the adjustment link 11 to one body, and the adjustment holes 13 ′ ・ 13 corresponding to the holding width adjustment holes 2 ′, 2 ′. The adjustment engaging holes 14 'and 14' are formed in the upper suspension link 8 and the adjustment link 11, respectively.

Further, a prism-shaped locking body 17 is laid over the side plates 3 ₁ , 3 ₁ near the upper part of the holding arm rod 3 to fix both ends, and the locking piece 3 ′ rotates about the adjustment pin 4 as an axis. When the block a bearing surface of the locking piece 3 ′ is horizontally positioned by moving, the lower surface of the locking body 17 is brought into flat contact with the upper ends of the flanges 1 ′, 1 ′ of the hoisting beam body 1, and the holding piece 3 ′. It is provided so as to restrict the further outward rotation of the '.

Further, gripping thickness adjusting mechanisms 18, 18 of a U-shaped block a are internally provided in the left and right lower flange portions 1 ′, 1 ′ of the lifting beam body 1 formed of H-piece steel. The grip thickness adjusting mechanism 18 shown in the drawing inserts the projecting plates 19 'and 19' on both sides of the U-shaped adjusting piece 19 into the left and right lower flange portions 1'and 1'of the hoisting beam body 1, and The tip of the installation piece 19 is axially attached to the flanges 1'and 1'with a pin 20, and the fastening holes 21 and 21 are provided in the flange 1'in front of the hoisting beam 1 to secure the adjustment pieces 19 and 19 to each other. The horizontal locking holes 22 and 22 that engage with the fastening holes 21 and 21 when the bottom plates 19 "and 19" are pivoted outwardly about the pins 20 and 20 and are positioned in the vertical position When the adjustment pieces 19, 19 are pierced in the hoisting beam body 1 by turning the bottom plates 19 ″, 19 ″ of the adjustment pieces 19, 19 to a horizontal position, the fixing holes 21, Vertical locking holes 23, 23 engaging with 21 are drilled in the adjusting pieces 19, 19, and the locking holes 21 and the horizontal locking holes 22 or the vertical locking holes 23 are fixed by locking pins 24. The space between the upper surface of the block a and the lower surface of the hoisting beam 1 which are provided on the locking pieces 3'and 3 ' When the space is narrow, the fastening holes 21 and 21 and the horizontal fastening holes 22 and 22 are fastened with the fastening pins 24 and 24, and when the space between the block a and the lower surface of the lifting beam 1 is large, the fastening holes 21 and 21 are fastened. The vertical locking holes 23 and the vertical locking holes 23 are fixed to each other by locking pins 24, and the adjusting pieces 19 and 19 are vertically installed to narrow the gap between the upper surface of the block a and the lower surfaces of the adjusting pieces 19 and 19 to stabilize the block a. It is provided so that it can be lifted up.

Since the present embodiment is configured as described above, the left and right holding arm bodies 3 are attached to the holding width adjustment holes 2 near the left and right ends of the hoisting beam body 1 as shown in FIG. The left and right upper suspension links 8 and the adjustment holes 13 of the adjustment link 11 and the adjustment engagement holes 14 are connected and fixed by the fixing pin 15, and the locking claws 3 ′ and 3 ′ are fixed to the window holes of the block a. When it is inserted into the inside and the suspension rings 16 and 16 are lifted up, the elevating angle tube 6 rises above the guide angle tube 5 and the horizontal link 7 rises.

At this time, the upper suspension link 8 and the adjustment link 11 are fixed by the fixing pin 15, and the upper end portion of the adjustment link 11 is restrained in the bending direction by the guide pieces 10 at the other end of the upper suspension link 8. Therefore, the horizontal links 7, the upper suspension link 8, and the adjustment link 11 support the lower surfaces of the block a by the holding claws 3 ', 3'to lift and move the block a, and the suspension ring is placed at a predetermined position. 16 and 16 are lowered and the bottom surface of the block a is lightly grounded to set the block a at a predetermined position, and then the suspension rings 16 and 16 are further lowered to bring the lower surface of the lifting beam 1 into contact with the upper surface of the block a. Open the locking claws 3 ', 3'inward to release the support to the block a and lift the suspension rings 16, 16.

When the window hole of the block a is narrow, as shown in FIG. 4, the left and right fixing pins 15 are extracted from the state of FIG. 3 to disconnect the upper suspension link 8 and the adjustment link 11, and the adjustment pins 4 and 4 are removed. Pull out to release the connection of the holding arm bodies 3 and 3 with the lifting beam body 1, and select the holding width adjustment holes 2 ', 2'in the center of the lifting beam body 1 corresponding to the window hole width. The lifting beam body 1 and the holding arm body 3 are axially attached by the adjusting pin 4 by aligning the engaging holes of the left and right holding arm bodies 3 with the holes, and the guide pieces 10 and 10 of the left and right upper suspension links 8 are used as guides. The adjustment link 11 is slid to adjust the holding width adjustment holes 2 ', 2'corresponding to the adjustment holes 13' and the adjustment engagement holes 14 ', and fixed with the fixing pin 15 to fix the upper suspension link 8. The adjustment link 11 and the adjustment link 11 are integrally connected, and the block a is lifted and moved by the same means as above, and the block a is set at a predetermined position by hanging. To put.

In the embodiment, the holding interval adjusting holes 2 and 2 ′ corresponding to the two types of blocks a having different holding widths are provided on the hoisting beam body 1 in a pair. The lifting distance adjustment hole 2 corresponding to the block a, the adjustment hole 13 and the adjustment engagement hole 14 for the holding distance adjustment hole 2 are provided in the lifting beam body 1, the upper suspension link 8 and the adjustment link 11, respectively, to provide a block lifting tool. Thus, it becomes possible to suspend a plurality of blocks a having different gripping widths by the gripping pieces 3 ', 3'.

[0021]

As described above, according to the present invention, a plurality of pairs of holding width adjusting holes and a plurality of pairs of adjusting holes and adjusting engaging holes are provided in the upper suspension link and the adjusting link corresponding to the left and right of the hoisting beam as described above. Select a pair of adjustment holes corresponding to the holding width of the block, and use the adjustment pin to pivotally attach the left and right holding arms to the lifting beam, and correspondingly fix the adjustment hole and the adjustment engagement hole. With this structure, the concrete block hoisting tool has a simple structure that makes it possible to hoist a plurality of blocks with different gripping widths with a set of hoisting tools and is practical and excellent.

[Brief description of drawings]

FIG. 1 is a front view in which a part of the present embodiment is cut away.

FIG. 2 is a plan view of the present embodiment.

FIG. 3 is an explanatory front view showing a usage example of the present embodiment.

FIG. 4 is an explanatory front view showing a usage example of the present embodiment.

FIG. 5 is an exploded perspective view of essential parts showing the structure of the grip thickness adjusting mechanism of the present embodiment.

[Explanation of symbols]

 1 Lifting beam 2 Holding width adjustment hole 3 Holding arm 3'Locking piece 3 "Tip 4 Adjustment pin 5 Guide square tube 6 Elevating angle tube 7 Horizontal link 8 Top suspension link 9 Pin 10 Guide piece 11 Adjustment link 12 Pivoting Pin 13 Adjusting hole 14 Adjusting engaging hole 15 Fixed pin 16 Hanging ring

Claims (1)

[Scope of utility model registration request] 1. A plurality of pairs of holding width adjusting holes are arranged in parallel on the left and right sides of a hoisting beam body, and a pair of holding width adjusting holes is selected so that the lower end of the holding width adjusting hole is outwardly provided with a locking piece. Adjusting pin is attached to the middle of the projecting holding arm, the tip of the holding arm is projected diagonally upward, and a guide square tube is erected at the center of the lifting beam body. The tube is fitted, and the upper end of the upper suspension link is attached to the left and right ends of the horizontal link attached to the vertical angle cylinder with pins, and guide pieces are provided at the upper and lower edges of the other end of the upper suspension link. Insert the upper end of the adjustment link that slides between the guide pieces using the guide piece as a guide, and attach it to the upper suspension link, and pivotally attach the lower ends of the left and right adjustment links and the tips of the holding arms with pivot pins. Then, adjust the spacing between the pins and pivot pins according to the holding width adjustment holes on the upper suspension link and the adjustment link. A block lifting tool characterized in that a plurality of pairs of adjusting holes for fixing both of them with fixing pins and adjusting engaging holes are provided, and a hanging ring is provided on the left and right pins.