JP3071691B2 - Turnbuckle connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turnbuckle type connecting device, for example, a gutter block, an L-shaped retaining wall block, a retaining wall block, a box culvert, etc., an electric wire, a telephone line, a gas pipe, and the like manufactured in a factory. water pipes, concrete products mutual connection and building structure or civil structures joint groove or the like for accommodating the sewage pipe, easy to use steel muscles rod cross and connected muscle rebar or the like to be used for its reinforcement It is a structure that is robustly connected with proper handling.

[0002]

2. Description of the Related Art Conventionally, concrete products, such as gutters,
Concrete products such as communal trenches buried underground to accommodate retaining walls, box culverts, electric wires, telephone lines, gas pipes, water pipes, and sewer pipes can be transported, stored, and even constructed on site. For convenience of work, a formwork was assembled at a site, and concrete was cast into the formwork instead of being cast in place. The concrete product thus produced, for example, the gutter block a as shown in FIG. 6 , is transported to the construction site. In order to connect the side groove blocks a with each other, the left and right side wall portions a of the side groove blocks a are connected to each other.
_1, a ₁ and the sidewall portion a _1, a ₁ on the lower surface of the bottom wall portion a ₂ steel muscle rod b inserted through the hole provided for the axial direction, respectively, or to weld the joining end mutual b ', or By press-welding the joint ends to each other via a binding bar, the steel bar b, b '
Connect each other. Thereafter, a filler such as cement mortar is filled between the joint ends of the side groove blocks a to prevent water leakage. 7 and 8 show another connection method of a concrete product such as a gutter block a. This is because a substantially U-shaped connection metal fitting f having a bolt insertion hole d in the end wall part e is provided in several notched recesses g, g provided corresponding to the abutting ends of the side groove blocks a, a. The connection fitting f is mounted by embedding the upper or lower anchor members h, h. Then, a bolt i is inserted into the bolt insertion holes d, d of the connection fittings f, f, and a nut k is screwed into a screw portion j of the bolt i, and the connection fittings f, f are tightly connected to each other to form a side groove block a. , A.

[0003]

However, as shown in FIG. 6 , the side groove blocks a, a are formed by using the steel reinforcing rods b, b '.
The conventional joining method of interconnecting the steel bars described above involves welding the front ends and the rear ends of the steel bars b and b 'to each other at the construction site, or overlapping the binding bars on the front ends and the rear ends of the steel bars b and b',
Splicing had to be performed by crimping, and the connection of concrete products required a lot of time and labor. Further, the connection of the side groove blocks a, a is not uniform depending on the site, and varies in a variety of ways, such as being connected in a linear state or connected in a curved state according to the site conditions. Therefore, the above-described method of connecting the steel bars b and b 'by welding or the like is not suitable for connecting the side groove blocks a and a in a curved state. Further, when an external force such as an earthquake, earth pressure, vibration during running of an automobile, or the like is applied, a connection portion between the steel bars b and b ', particularly a welding portion, is easily cut, and there is an inconvenience that the structure is fragile. In addition, as shown in FIGS. 7 and 8 , in the above-mentioned other conventional example of connecting concrete products such as gutter blocks a, a with connecting fittings f, f, an external force such as an earthquake, earth pressure or the like is connected. When it is added to the portion, the connecting fitting f is deformed or broken, and furthermore, there is a disadvantage that the connecting fitting f is easily removed from the anchor members h, h. In addition, the connection work requires a lot of time and labor for screwing the screw portion j of the bolt i and the nut k.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional disadvantages, and uses a simple handling operation to prevent concrete such as earthquakes, earth pressure, and external forces such as vibrations during driving of an automobile according to site conditions.
It is connected to concrete products, etc. by using steel bars and connecting bars that are inserted into civil structures or building structures such as products and that are structurally opposed to each other, and connect concrete products, etc., and are easy to manufacture and assemble. It is an object of the present invention to provide a turnbuckle-type connecting device having a low manufacturing cost.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has an outer shape formed substantially in a box shape, and has an axial direction.
Through at least one of the wall surfaces facing each other
An exterior rotating body provided with a hole , and an axial length in the exterior rotating body.
Movable in the direction and interlocked in the axial direction
Capable nut member having at least one of furnished opposite spiral direction of the screw hole, the spiral of the wall portion
The screw part inserted into the hole and screwed into the screw hole is at the end
Concrete with the installation and rotation restricted
A steel rod inserted in a civil structure such as a product or an architectural structure, and a means for tightening the steel rods at the threaded portion by rotating the exterior rotating body. Adopted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific example of an embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention in the case of connecting a gutter block as a concrete product.
This is an example. Reference numeral 1 denotes an exterior rotating body provided rotatably in a clockwise or counterclockwise direction. The exterior rotating body 1 includes wall portions 1a, 1a opposed in the axial direction, and the wall portion 1a.
side walls 1b, 1b provided on both the left and right sides between a, 1a
This forms a substantially box shape. 1c is the exterior rotating body 1
The opening is provided at least on the upper surface of the upper surface or the lower surface. 1a ₁ is a through hole which is provided the wall portion 1a, the 1a, the end portions of the front and rear of the later steel muscle rods 4, 4 'allows the insertion opposite to the insertion hole 1a _1, 1a _1.

2, 2 'are screw holes in opposite spiral directions,
The nut member 2, 2 ′ is formed in the exterior rotating body 1 so as to face the inside of the wall portions 1 a, 1 a in the axial length direction. Moreover, the nut members 2 and 2 ′ are provided so as to be movable in the axial direction in the exterior rotating body 1 and lockable in the direction crossing the axial direction. Further, the outer shape of the nut members 2 and 2 'is hexagonal as shown in FIG. Although shown, it is not limited to this and may be a polygon such as a front square or a front octagon.

4 and 4 'are concrete products, for example, FIG.
Concrete products for civil engineering structures as shown in
Arrangement is made appropriately in holes 5a ₁ , 5a ₁ provided in the longitudinal direction of the left and right side wall portions 5a, 5a of all the side groove blocks 5.
By being inserted, when connecting gutter block 5 are steel muscle bar each rotation is arranged opposite in a state to be bound, the outer rotary body opposite ends of these steels muscle rods 4,4 ' 1 is inserted into the exterior rotating body 1 through the insertion holes 1a ₁ , 1a ₁ provided in the wall portions 1a, 1a facing each other in the axial direction. Opposite screw portions 4a, 4'a; 4b, 4'b which are screwed into the screw holes 3, 3 'are formed at the front and rear outer peripheral ends of the steel rods 4, 4'. . By rotating the exterior rotating body 1 in, for example, a clockwise direction, the steel reinforcing rods 4 and 4 'are connected to each other by being tightened at the threaded portions.

Reference numeral 6 denotes threaded portions 4 of the steel reinforcing bars 4, 4 'at front and rear connection ends of a gutter block 5 as a concrete product.
a, 4'a; 4b, 4'b are cutout recesses formed so as to face each other, and the exterior rotating body 1 is rotatably accommodated in the cutout recesses 6, 6.

The first embodiment of the present invention is constructed as described above, and transports the gutter blocks 5, 5 as a concrete product as shown in FIG. 2 to a construction site, and connects the gutter blocks 5, 5 to each other. In order to perform this, first, a hole 5a provided in a desired position of the side groove blocks 5, 5 to be connected to each other, for example, in the axially long side wall portions 5a, 5a opposed to the left and right.
_1, 5a opposing helical direction formed on the outer peripheral edge portion facing the front and rear of the inserted steel muscle rods 4, 4 'into the _first screw portion 4
a, 4'a; 4b, 4'b are threaded holes provided in nut members 2, 2 'as wall members provided in the exterior rotating body 1 facing the facing wall portions 1a, 1a of the exterior rotating body 1. 3,3 '
Screwed in.

When the outer rotating body 1 is rotated clockwise, for example, in this way, the steel bars having the screw portions 4a, 4'a; 4b, 4'b screwed into the screw holes 3, 3 'of the nut members 2, 2'. The rods 4, 4 'are connected to each other in tension. At this time, even if the axial centers of the gutter blocks 5, 5 as concrete products are slightly shifted from each other due to the construction, even if the axial centers of the ends of the steel reinforcing bars 4, 4 'are displaced, they are opposed to each other. The outer peripheral ends of the steel rods 4, 4 ′ are inserted into the exterior rotating body 1 by being inserted into insertion holes 1 a ₁ , 1 a ₁ provided in the facing wall portions 1 a, 1 a of the exterior rotating body 1. The screw portions 4a, 4'a; 4b, 4 'of the steel rods 4, 4' are screwed into the screw holes 3, 3 'provided in the individual nut members 2, 2'. The screwing operation of b can be easily performed.

[0012] Rotation Thus the side wall portion 5a of the groove block 5,5 as concrete products, by being inserted into provided hole 5a ₁ to 5a is disposed opposite to the front-rear direction in a state to be bound In order to connect the steel rods 4 and 4 'to each other, the outer rotating body 1 is rotated to rotate the outer rotating body 1 so that the nut members 2 and 2' provided on the inner surface of the outer rotating body 1 are opposed to each other. The steel rods 4 and 4 'into which the screw portions 4a and 4'a; 4b and 4'b are screwed into the screw holes 3 and 3' in the helical direction can be tightly connected to each other. is there. Further, the connecting device of this embodiment has a simple structure including the substantially box-shaped exterior rotating body 1 and the nut members 2 and 2 'housed therein, and has a small number of parts. It ’s easy, it can be mass-produced,
The cost will be lower. In addition, it has a compact design, is lightweight and the handling operation is quick and reliable.

When the gutter blocks 5, 5,... To be connected are connected in a curved manner in accordance with the inclination of the construction site or the difference in the laying state of the road, and the presence or absence of obstacles, the gutter blocks 5, 5,. ... and steel muscle rods 4, 4 each other to be inserted into provided hole 5a ₁ on the side wall portion 5a of the one side of the steel muscle rod 4 that is inserted into the hole 5a ₁ provided on the side wall portion 5a of the other side ', 4 The degree of tightness can be adjusted by adjusting the rotational speed of the exterior rotating bodies 1 and 1 for connecting the side groove blocks 5 'and the side groove blocks 5, 5 ... can be easily connected in a curved shape.

A filler such as cement mortar, synthetic resin or the like is packed and solidified between the joint ends of the side groove blocks 5, 5,... To prevent leakage of flowing water flowing in the side groove blocks 5, 5,. Stop the water. Filler such as cement mortar, if necessary, steel bar 4,
When the front end and the rear end of the 4 'are stuffed into the cutout recesses 6, 6 provided at the abutting ends of the side groove blocks 5, 5, ..., the steel reinforcing bars 4, connected via the exterior rotating body 1, are inserted. 4;
The connection between the 4 'and 4' is fixed by a filler such as cement mortar. In this way, careless rotation of the exterior rotating body 1 may be prevented, and loosening may be prevented.

When the side groove blocks 5, 5... Are connected in this way, the nut members 2, 2 'are connected to the threaded portions 4 of the steel rods 4, 4'.
a, 4'a; 4b, 4'b are individually screwed into the exterior rotating body 1 so that they can be slightly moved to absorb the impact, and the substantially box-shaped Nut members 2 and 2 ′ having screw holes 3 and 3 ′ by the external rotating body 1 and screw portions 4 of steel rods 4 and 4 ′ screwed into the screw holes 3 and 3 ′.
a, 4'a; 4b, 4'b are protected. Therefore an earthquake,
When an external force such as earth pressure or vibration due to the running of a car is applied, the connecting portions of the steel bars 4, 4; 4 ', 4' withstand the compression or tension, and are deformed or damaged as in the conventional case. It does not pull out or pull out and maintains a robust connection.

To disconnect the side groove blocks 5, 5,..., The exterior rotating body 1 is rotated, for example, in a counterclockwise direction.
The nut members 2 and 2 'which are housed inside the exterior rotating body 1 so as to be locked in the direction crossing in the axial direction are provided on the nut materials 2 and 2' because they are rotated integrally with the exterior rotating body 1. From the screw holes 3, 3 ', the threaded portions 4a, 4'a; 4b, 4'b of the steel rods 4, 4' screwed into the screw holes 3, 3 'are withdrawn. In this way, the nut material 2,
2 ′ and the outer rotating body 1 can be separated,
5 are disconnected.

FIG. 4 shows that the concrete product is L
Another embodiment of the present invention in the case of a shaped retaining wall block 20 is shown. In this embodiment, the preceding L-shaped retaining wall block 20 and the following L-shaped retaining wall block 2 connected thereto are connected.
0 a screw portion 4a provided at the opposing end outer periphery of the steel muscle rods 4, 4 'to be inserted in the axial hole 20a ₁ formed in the direction, 20a ₁ of, 4'a; 4b, the 4'b exterior The nuts 2 and 2 ′ are screwed into opposing screw holes 3 and 3 ′ provided in nut members 2 and 2 ′ provided inside the outer rotator 1 so as to face the wall portions 1 a and 1 a of the rotator 1. Next, by rotating this exterior rotating body 1 in a clockwise direction, for example, opposed steel reinforcing bars 4, 4 'screwed into the screw holes 3, 3' of the nut members 2, 2 '.
Tighten each other to connect the preceding L-shaped retaining wall block 20 and the following L-shaped retaining wall block 20. In FIG. 4, reference numeral 21 denotes a foundation. 1 to 3 are denoted by the same reference numerals. Other configurations and operations are the same as those of the above embodiment.

FIG. 5 shows a third embodiment of the present invention in which the concrete product is a retaining wall block 30. In this embodiment, the retaining wall blocks 30, 30,.
In order to connect the steel bars continuously, screw portions 4a, 4'a; 4b, 4'b provided on the outer periphery of the opposite ends of the steel bars 4, 4 'inserted in the longitudinal direction in the retaining wall block 30 are externally provided. After screwing into the screw holes 3 and 3 'of the nut members 2 and 2' provided inside the exterior rotating body 1 so as to face the wall portions 1a and 1a of the rotating body 1,
As in the first and second embodiments, the steel rods 4 and 4 'are connected to each other by rotating the exterior rotating body 1 by tightening.

However, in this embodiment, as shown in FIG. 5, a retaining wall portion 31 is provided crossing the back surface of the retaining wall block 30.
And the vertically elongated holes 31a, 3
Insert the vertical reinforcing bars 4 ″, 4 ″ into the retaining wall block 3a.
0 Steel reinforcing bars 4 for connecting each other continuously in the longitudinal direction
Cross over 4 'and arrange. And retaining wall block 3 of each step
The vertical steel reinforcing bars 4 ″, 4 ″; 4 ″, which are inserted into the holes 31a, 31a formed in the
Threaded portions 4 "a, 4" provided on the outer periphery of the opposed 4 "end
a; By rotating the exterior rotating body 1 in which the nut members 2 and 2 'into which 4 "b and 4" b are screwed are inserted, the vertical steel reinforcing rods 4 "and 4", depending on the height of the retaining wall blocks 30 to be stacked.
4 ";4", 4 "connected, stacked retaining wall block 3
0 was prevented from tilting. At this time, in this embodiment, to connect the vertical steel bars 4 ″, 4 ″; 4 ″, 4 ″,
It is excellent that the vertical steel bars 4 ", 4" can be sequentially connected in the height direction to the vertical steel bars 4 ", 4" having the tips embedded in the base block 32 by using the exterior rotating body 1. The third embodiment differs from the first and second embodiments in that the second embodiment has the following effects.

In the first embodiment of the present invention shown in FIGS. 1 to 3, two nuts 2 and 2 'and two screw cylinders 2A and 2'A are mounted on the exterior rotating body 1; Any one of the nut members 2 and 2 'and the threaded tube portions 2A and 2'A is housed in the exterior rotating body 1 and the other side wall 1a of the exterior rotating body 1 is housed in the exterior rotating body 1. The nut members 2, 2 'and the like may be provided with screw holes 3, 3' in the helical direction opposite to the nut members 2, 2 ', etc., and one of the steel bars 4, 4' may be screwed.

In the above description, the side groove block shown in FIG. 2 and the L-shaped retaining wall block shown in FIG.
The connecting bars of the present invention are used to tighten the reinforcing bars 4, 4 'arranged in a concrete product such as a box culvert or a retaining wall block as shown in FIG. connector except when connecting the steel muscle rod 4,4 'cross, it is possible to connect the concrete product by connecting the connecting muscle mutually by interpolation distribution in concrete products to protrude only on the front end or the rear end of it.

[0022]

As described above, according to the present invention, the outer shape is substantially box-shaped.
At least one formed and opposed in the axial direction
Square and the outer rotating member insertion hole provided in the wall portion of the said outer rotating body交又to movably and axial direction in the axial direction
A nut material having at least one of screw holes in the opposite helical direction, which are provided so as to be lockable in the direction of
A screw portion inserted into the insertion hole of the wall portion and screwed into the screw hole is provided at an end and rotation is restricted.
Civil and structural structures such as concrete products
And the steel rods are inserted into the object, and the steel rods are tightly connected to each other at the threaded portion by rotating the exterior rotating body, so that the rotation of the concrete product is restricted . In civil and architectural structures like
By simply turning the exterior rotating body after screwing the threaded portion of the steel rod inserted into the threaded hole of the wall member, it can be used during earthquakes, earth pressures, and vehicle running according to the site conditions. The steel bars and the connecting bars can be connected to each other in a structurally robust manner against external forces such as vibrations.

[Brief description of the drawings]

1 is an enlarged oblique view diagram showing an embodiment of a turnbuckle of the connector of the present invention.

2 is a same oblique view showing the state of use of the turnbuckle of the connector.

FIG. 3 is an enlarged cross-sectional view showing a state in which steel bars are connected to each other using the connecting tool.

4 is a same oblique view showing the second embodiment of the present invention showing a state of connecting the L Katachiyokabe block.

Figure 5 is a same oblique view showing the third embodiment of the present invention showing a state of connecting the retaining wall blocks.

6 is a <br/> oblique view diagram showing an example of the connector of the conventional concrete products.

7 is a same oblique view diagram showing another example of the connector of the conventional concrete products.

[8] also shows an enlarged oblique view of connector shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Exterior rotating body 1a Wall part 2 Nut material 2 'Nut material 3 Screw hole 3' Screw hole 4 Steel rod 4 'Steel rod 4a Screw part 4'a Screw part 4b Screw part 4'b Screw part 5 Side groove block 6 Notch recess 20 L-shaped retaining wall block 30 Retaining wall block

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F16B ^7/ 00-7/22 E03F 5/04

Claims (1)

(57) [Claims] An outer shape is formed in a substantially box shape, and the outer shape is formed in an axial length direction.
Insertion holes are provided in at least one of
The exterior rotating body that has been
Moveable and lockable in the direction crossing the axial direction
At least some of the internal and opposite helical screw holes
Nut material having one of them , and in the insertion hole of the wall portion
A screw portion to be inserted and screwed into the screw hole is provided at an end portion
Of concrete products with rotation restricted
A turnbuckle type connection comprising a steel rod inserted in a civil engineering structure or a building structure, wherein the steel rods are fastened to each other at a threaded portion by rotating the exterior rotating body. Utensils.