KR20200068956A - Connecting apparatus for concrete pole - Google Patents

Abstract

The present invention relates to a connection apparatus for a prefabricated concrete structure which facilitates assembly and separation to vertically connect and fix a plurality of concrete structures of a column shape, and can sturdily fix a joint of corresponding concrete structures. More specifically, the connection apparatus for a prefabricated concrete structure comprises: an electric pole connection unit consisting of two bodies to be separated from each other/coupled to each other, wherein the bodies are arranged on a pair of concrete structures facing each other and are fixed on tension bars of the concrete structures; and an electric pole fixing unit to fix the electric pole connection unit consisting of the two bodies by a fastening means to connect the pair of concrete structures to each other. The electric pole connection unit includes: an upper connector having a circular pipe shape with an insertion hole, and allowing the tension bar exposed from one of the pair of concrete structures to be radially inserted thereinto around the insertion hole; a lower connector which has a pipe shape with a coupling protrusion protruding upwards and being coupled to the insertion hole in a shape-matching manner, has a plurality of lower connection holes facing the upper connection hole and allowing the tension bar exposed from the other concrete structure which is not coupled by the upper connector to be inserted thereinto, and is fixed with the upper connector by the electric pole fixing unit; and a wedge having a column shape and having a hollow space formed in the longitudinal direction to insert the tension bar therethrough, wherein the outer surface thereof is inserted and coupled to the inner surfaces of the lower connection holes and the upper connection hole in a shape-matching manner to fix the upper connector and the lower connector on the concrete structures.

Description

Connecting apparatus for concrete poles

The present invention relates to a connection device for a prefabricated concrete structure that is easy to assemble and separate so that a plurality of pillar-shaped concrete structures are vertically connected to each other to be fixed, and that the joints of the concrete structure can be securely fixed. .

In general, concrete structures in the form of pillars include electric poles or piles that are used as piles for the foundation work of buildings to extend the installation of communication lines. Conventional poles are widely used in monolithic concrete poles with a length of 10 to 16m, all of which are in the form of a single column, and piles are deeply inserted into the ground by interconnecting a plurality of them depending on the depth to be buried or the supporting load. For the interconnection of the pile pipes, joint caps are respectively installed at the upper end of the lower pile and the lower end of the upper pile, and the joint cap is welded or a bolted flange method is used.

On the other hand, the mono-concrete pole as described above is stable in terms of its durability and function, but due to its length and weight problems due to the characteristics of being manufactured as one monograph according to the height of the pole, it is difficult to transport and construct to the construction site. In order to construct a relatively long electric pole, a flanged assembly type concrete pole or steel pipe pole is used to fasten a number of bolts to the flange.

However, in general, such a flange fastening method used in a concrete structure forms a flange on the outside of the structure, and a hollow must be formed in the flange to insert a bolt, so there is a need to always match the hollow formed on each flange. Accompanying, because a number of bolts and nuts have to be fastened, the construction time and cost increase, there is a problem that the practicality is extremely poor.

In addition, the concrete structure of the prefabricated electric pole of the flange connection method, which is used as the connection, forms a protruding flange structure with respect to its joint, so the productivity is extremely low due to the 2 mold production method of manufacturing the upper and lower structures in separate molds. , After assembly at the site, there was a problem that was not good in appearance.

1. Domestic Publication Patent No. 10-2017-97357 (Publication Date: 2017.08.28) 2. Domestic registration patent No. 10-0546941 (announcement date: January 26, 2006) 3. Domestic registered patent No. 10-1812762 (announcement date: December 28, 2017)

The present invention has been proposed to solve the above-mentioned problems, and the appearance of the connection body provided in the joint of the concrete structure such as Jeonju is beautiful, as well as productivity in a one-mould production method that simultaneously manufactures upper and lower structures. High, easy to assemble and separate during construction, and aim to provide a sturdy support connector.

As a technical problem for solving the above-described conventional problems, the connecting device of the prefabricated concrete structure according to the present invention is composed of two bodies that can be separated/combined from each other, but is provided on each pair of opposing concrete structures, and the concrete structure An electric pole connecting portion fixed to the tensile muscle of the body and the electric pole connecting portion made of two bodies by fastening means to include a pair of electric poles connecting the concrete structures to each other, wherein the electric pole connecting portion is a circular tube shape in which an insertion hole is formed. The upper connector formed by a plurality of upper connecting holes into which the tensile muscles exposed in any one of a pair of concrete structures radially inside, centered on the insertion hole, is formed by combining with the insertion hole in a shape fit The pillar is formed in a tubular shape protruding upward but facing the upper connecting hole, and a plurality of lower connecting holes into which the tensile muscles exposed in the other concrete structure to which the upper connecting body is not inserted are perforated and perforated with the upper connecting hole. Together, the lower connector is fixed to each other by the Jeonju government, and is formed in a column shape, but the hollow portion through which the tensile muscle is inserted is formed in the longitudinal direction, and the outer surface is fitted in shape with the inner surface of the upper connection hole and the lower connection hole. It characterized in that it comprises a wedge provided to be coupled to the upper connector and the lower connector is fixed to the concrete structure.

In addition, the inside of the wedge is provided with a magnet body to be mounted by the tensile muscle and magnetic force to have different diameters such that the outer diameter gradually narrows from the top to the bottom, and the different diameters of the wedge are the upper connecting hole or the By having a size that is not completely inserted into the lower connection hole, the tension of the tensile muscle allows the outer surface of the wedge to maximize the fixing force with the upper connection hole or the inner surface of the lower connection hole, and the outer surface of the wedge has the It is preferable that the incision is formed in the longitudinal direction so that the tensile muscle can be easily inserted into the hollow portion.

In addition, the coupling column inserted into the insertion hole further comprises preventing the flow of each other after the upper connection body and the lower connection body are coupled by the flow prevention means, wherein the flow prevention means is radially on the inner surface of the insertion hole. It includes a flow-preventing protrusion formed protrudingly, and a flow-preventing groove formed radially protruding on the outer surface of the coupling column, wherein the flow-preventing protrusion is inserted into a shape fit, and at least one of the plurality of flow-preventing protrusions is fastened by a fastening means. It is preferable that the pressing hole is formed, but the fastening means fastened to the pressing hole allows the end thereof to press the outer surface of the coupling column through the flow prevention groove.

In addition, the Jeonju-ju government includes a pair of joint protrusions protruding to have the same outer diameters on the outer surfaces of the upper connector and the lower connector, respectively, but each of two pairs of arc-shaped bodies but in contact with each other. It includes a plurality of fixtures are formed with a fixing groove that can be inserted into the outer surface of the joint protrusion, a plurality of the fixture through the fixing hole through which the fastening means are inserted through the surface contact with each other at both ends of each fixture. It is preferable that a coupling piece capable of pressing and fixing the connection portion is formed.

In addition, the Jeonju Joogo government includes a pair of joint protrusions protruding to have the same outer diameters on the outer surfaces of the upper connector and the lower connector, respectively. Connection device for a prefabricated concrete structure, characterized in that the body and the lower connection body is formed with a fastening hole that can be fixed to each other.

According to the present invention, differently from the prior art, the main pole connection portion is coupled to the plurality of main body joints vertically connected to each other by the main pole connection portion so as not to protrude more than the outer diameter of the main pole body, so that the beauty of the completed pole pole has an excellent effect do.

In addition, the upper connector installed on the lower part of any one of the pair of electric poles facing each other differently from the prior art and the lower connector installed on the upper portion of the other electric pole can be separated/combined from each other, but stably by tightening the fastening means. Since it can be fixed, the construction has a simple effect.

1 is a view showing a connecting device of a prefabricated concrete structure according to the present invention.
Figure 2 is an exploded view of Figure 1;
Figure 3 is a view showing the upper connection of the connecting device of the prefabricated concrete structure according to the present invention.
4 is a view showing the lower connection body of the connecting device of the prefabricated concrete structure according to the present invention.
5 is a view showing a state before the coupling of the upper connector and the lower connector of the connecting device of the prefabricated concrete structure according to the invention.
Figure 6 is a view showing the state after the combination of the upper connector and the lower connector with respect to FIG.
7 is a view showing a state before the main pole of the connecting device of the prefabricated concrete structure according to the invention combined with the front pole connection.
FIG. 8 is a view in which the main pole for FIG. 7 is combined with the main pole connecting portion.
9 is a view showing the wedge of the connecting device of the prefabricated concrete structure according to the present invention.
10 and 11 are another embodiment of the wedge for FIG. 9.
12 is a functional relationship diagram for FIG. 9;
13 is a cross-sectional view taken along line AA' in FIG. 8;
14 is a cross-sectional view taken along line BB' of FIG. 8;
15 is a view showing the cover member of the connecting device of the prefabricated concrete structure according to the present invention.
Fig. 16 is a use state diagram of Fig. 15;
17 is a view showing another embodiment of the joint protrusion of the connecting device of the prefabricated concrete structure according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the connecting device of the prefabricated concrete structure according to the present invention (hereinafter simply referred to as'connecting device').

First, as shown in Figures 1 and 2, the connecting device 1 according to the present invention largely includes a jeonju connecting portion 100 and jeonjugogo 200.

In more detail, as shown in FIGS. 2 to 12, the electric pole connecting portion 100 is a configuration for connecting a pair of concrete structures 10 and 10' disposed above and below each other. For example, the upper connector 110, the lower connector 120 and the wedge 140.

Prior to the description, the electric pole connecting portion 100 in the present invention is composed of a plurality of bodies to clarify the gist, but is based on the pair of concrete structures (10, 10') connected to each other based on the concrete structure ( 10) Note that it is described that the upper connector 110 is installed at the lower end and the lower connector 120 is installed at the upper end of the concrete structure 10' (see FIG. 1).

Referring to FIG. 3, the upper connector 110 is installed under the concrete structure 10 located above the pair of concrete structures 10 and 10' to be connected, but another concrete structure 10' The upper connection hole 111 and the insertion hole 113 are configured to be connected to the lower connection body 120, which will be described below, which is installed on the upper portion, and to connect a pair of concrete structures 10 and 10' to each other.

The upper connecting body 110 is formed in the shape of a cylinder having a predetermined diameter as a whole, but has a shape of a pipe in which the insertion hole 113 is perforated in the longitudinal direction at its center.

The outer diameter of the upper connector 110 is preferably formed to have the same diameter as the outer diameter of the concrete structure 10, but the first jaw portion 117 along its outer circumferential surface so that the upper portion of the cover member 150 to be described later can be inserted and supported ) Is formed.

Here, the cover member 150 is composed of two bodies having a shape of a plate which is curved in a semicircle as a whole, and as shown, the upper connection hole 111 and the lower connection hole 121 are covered so as not to be exposed to the outside. Of course, the plurality of concrete structures (10,10') of the plurality of concrete structures (10,10) as a space portion (S) between the upper connector 110 and the lower connector 120 is installed on the upper or lower part of the ') to prevent the inflow of concrete structures, etc., used for forming the electric pole (see FIGS. 15 and 16).

The upper portion of the pair of cover members 150 is supported by the first jaw portion 117, the lower portion of which is supported by the second jaw portion 127 of the lower connecting body 120 to be described later, and the pair of the cover members 150 Each end has a curved shape so that the other end of each of the cover members 150 has a ring-shaped structure that is fixed to each other by fastening means P after being inserted.

In addition, the cover member 150 is a plurality of concrete structures (10,10') is combined by the present invention connecting device 1 to form a completed electric pole (not shown) to be replaced with another cover member 150 to be used do.

Again, referring to Figure 3, the insertion hole 113 is a coupling structure 123, which will be described later, is inserted into a shape fit to fix the concrete structure 10' and the upper connector 110 fixed through the lower connector 120. Another concrete structure (10) fixed through to be connected to each other.

The upper connection hole 111 is formed with a plurality of radially perforated inside the upper connection body 110 around the insertion hole 113, the tensile muscle of the concrete structure 10 fixed by the upper connection body 110 It is formed at a position opposite to (11) so that the tensile muscle 11 can be inserted through the wedge 140 described later.

At this time, the end of each tensile muscle 11 does not deviate from the wedge 140 inserted when the tension is applied to the tensile muscle 11, but the outer surface of the wedge 140 is more tightly fitted with the upper connection hole 111 By doing so, it is preferable that the head portion 13 is formed over the inner surface of the wedge 140 so that the fixing force can be improved, and the head portion 13 is a tensile muscle inserted into the lower connection hole 121 to be described later ( 11').

Referring to FIG. 4, the lower connector 120 is another concrete structure 10 in which the above-described upper connector 110 is not installed among a pair of concrete structures 10 and 10 ′ to be vertically connected to each other. ') It is fixedly installed on the upper part to be connected to the upper connection body 110, and includes a lower connection hole 121 and a coupling column 123.

The lower connecting body 120 is formed in the shape of a cylinder having a predetermined diameter as a whole, but at the center thereof, a coupling column 123 inserted in a shape fit into the above-described insertion hole 113 in the upward direction is protruded.

The outer diameter of the lower connector 120 is preferably formed to have the same diameter as the outer diameter of the concrete structure 10' to be fixedly installed in the same manner as the upper connector 110 described above, and of the cover member 150 to be described later. The second jaw portion 127 is formed along the outer circumferential surface so that the lower portion can be inserted and supported.

The lower connecting hole 121 has a plurality of radially perforated inside the lower connecting body 120 around the coupling column 123, and the tension of the concrete structure 10' fixed by the lower connecting member 120 The muscle 11', of course, is perforated at a position opposite to the upper connecting hole 111 described above so that the tensile muscle 11' can be inserted through the wedge 140 described later.

On the other hand, referring to Figures 2 and 13, in the present invention, the flow preventing means 130 for preventing the flow of the coupling column 123 inserted into the insertion hole 113 may be further formed, the flow preventing means 130 may be a flow prevention protrusion 131 and the flow prevention groove 133.

As shown in the drawing, the flow prevention protrusion 131 has a shape that protrudes radially on the inner surface of the insertion hole 113 around an arbitrary center C of the insertion hole 113 formed to have a predetermined diameter.

At this time, at least one of the plurality of flow prevention protrusions 131 penetrates into the insertion hole 113 from the outside of the upper connection body 110, but presses the outer surface of the coupling column 123 inserted into the insertion hole 113 inside. The upper connection body 110 and the lower connection body 120, as well as the fixing force of the bolts or screws, etc. to further maximize the effect of preventing the flow through the pressure hole 135 is inserted through It is preferred that it is further formed.

The flow prevention groove 133 is formed radially on the outer surface of the coupling pillar 123 to face the flow prevention protrusion 131 described above, and when the coupling pillar 123 is inserted into the insertion hole 113, the flow It is inserted into the prevention protrusion 131 so that the flow of the upper connecting body 110 and the lower connecting body 120 connected to each other together with the fixing body 210 to be described later can be prevented.

At this time, it is preferable that the inner wall of the flow prevention groove 133 has a structure that can be pressed to the end of the fastening means P entering through the above-described pressing hole 135.

Referring again to FIGS. 3, 4 and 9, the wedge 140 has the upper connector 110 and the lower connector 120 which are fixedly installed in a plurality of concrete structures 10 and 10', respectively. It is a structure for easily fixed installation by the tensile muscles 11 and 11' exposed outside the structures 10 and 10'.

In the wedge 140, a cutout 145 is formed in the longitudinal direction so that both the body 141 and the flange 143 are included, so that the hollow portion 142 is exposed to the outside by the opening of the cutout 145 and is tensioned. The wedge 140 may be inserted into the upper connecting hole 111 and the lower connecting hole 121, respectively, so as to surround the outer surfaces of the muscles 11 and 11', as shown in FIG. 10, as necessary. The wedge 140 is made of one body and is formed of two powders so as to be fastened with the tensile muscles 11 and 11' or to be separated and combined with each other. Can be.

At this time, the wedge 140 made of two powders increases the bonding force between each other, but for the convenience of the operator, the outer surface of the tensile muscles 11, 11' of the metal material by the magnetic force of the magnet body 144 or the magnet body 144 ) Can be combined with each other, in this case, the two powders have a different polarity by a magnetic force or one of the two powders is made of a magnet, the other is a metal that can be bonded by magnetic force It is desirable to use made of materials.

In addition, the magnet body 144 provided in the wedge 140 may be formed of a magnet as a whole body constituting the wedge 140, but faces each other of the wedge 140 made of two powders for reasons such as cost reduction. It is also possible to use a magnet or a gold-plated attachment member 146, and if necessary, the wedge 140 can be attached by tensile force (11, 11') made of a metal material and easily magnetic force. It is also possible to fasten the hollow body 142 with the magnet body 144 (see FIG. 11).

At this time, one of the pair of attachment members 146 provided to face each other on two powder bodies is formed with a coupling protrusion 147 protrudingly, and the other is fitted into each other by fitting the shape with the coupling protrusion 147. It is preferable that the coupling groove 148 is formed to maximize the coupling force of the wedge 140 composed of two powders.

Of course, the attachment member 146 in the present invention is described as being formed so that the engaging projections 147 and the engaging grooves 148 facing each other are formed to face each other, but this is only one embodiment, and if necessary, Instead of the attachment member 146, it is also possible to be formed on the wedge 140 itself made of two powders.

In addition, the wedge 140 in the present invention is formed so that the diameter is narrowed from the top to the bottom, that is, the body 141 is formed to have a shape in which the outer diameter is narrowed in the bottom direction, the upper connector 111 or the lower connector 121 ) The upper connecting hole 111 or the lower connecting hole 121 also has a shape in which the inner diameter is narrowed downward so that the inner surface and the shape can be fitted to fit, so that it can be easily combined by a forced fitting method ( See Figure 12).

Furthermore, the hollow portion 142 has a protruding portion 149 formed at a position facing the tensile muscle groove to be inserted into the tensile muscle groove formed in a threaded manner on the outer circumferential surface of the tensile muscle 11,11' to mutually engage with each other. Can be.

Accordingly, the outer surface of the body 141 is fitted with the inner surface of the upper connection hole 111 or the lower connection hole 121, and the hollow portion 142 is a tensile muscle (11, 11') so that the protrusion 149 has a clasp function. ) The body 141 is further tightened to the upper connecting hole 111 or the lower connecting hole 121 according to the direction in which the tensile force of the corresponding tensile muscles 11 and 11' is engaged by fitting the outer surface. It is possible to maximize the fixing force between the device (1) and the tensile muscles (11,11').

And, the Jeonju jugogo 200 is as shown in Figures 7 and 8, the above-described upper connector 110 and lower connector 120 fixed to each of a pair of concrete structures (10,10') respectively In the present invention as a configuration for fixing integrally, for example, the fixing body 210 and the coupling piece 220 are included in the first embodiment.

As shown in the drawing, the pair of couplers that can be separated/coupled from each other is inserted so as to enclose a plurality of joint protrusions 115 and 125 protruding from the upper connector 110 and the lower connector 120, respectively, as shown in the ring shape. It can be made in a semicircular shape and bent in an arc shape.

On the inner surface of the stationary body 210, a fixing groove 211 for inserting a plurality of joint protrusions 115 and 125 in a shape fit is formed in the curved longitudinal direction (see FIG. 14).

At this time, the radius of the fixing groove 211 has a smaller diameter than the radius of the joint protrusions 115 and 125, and the upper connecting body of which a pair of fixing bodies 210 are connected to each other by tightening the coupling piece 220 to be described later ( 110) and the lower connector 120 is preferably to be stably fixed by pressure.

Meanwhile, as shown in FIGS. 5 and 6, the joint protrusions 115 and 125 face each other on the outer surface of the upper connector 110 and the outer surface of the lower connector 120, which will be described later, so that they have a ring shape as a whole. Note that the protrusions 115 and 125 formed on the upper connector 110 and the lower connector 120 are formed to have the same shape symmetrically to each other.

The pair of joint protrusions 115 and 125 allow the coupling pillars 123 of the lower connection body 120 to be completely inserted into the insertion hole 113 of the upper connection body 110, and will be described later. The outer surface is inserted to be wrapped by a pair of fixtures 210 so that the upper connector 110 and the lower connector 120 can be fixed to each other by pressurization of the fixture 210. Have

The coupling piece 220 is protruded outwardly at both ends of each fixing body 210, and a fixing hole 221 through which the fastening means P penetrates is formed.

The coupling pieces 220 formed on each of the fixing bodies 210 are in surface contact with each other after being fastened to enclose a plurality of the coupling protrusions 115 and 125 of a pair of the fixing bodies 210, but each of the coupling pieces 220 ) Through a plurality of fixing holes (221), the fastening means (P) penetrates through the fastening of the fastening means (P), a pair of the fixing body 210, the upper connector 110 and the lower connector ( 120) can be fixed by pressing.

Meanwhile, as illustrated in FIG. 17, the Jeonju Jugo government 200 does not have the configuration of the fixed body 210 described above as the second embodiment, and the pair of joint protrusions 115 and 125 are fastened to the fastening means P. It can be coupled to each other so that the upper connection body 110 and the lower connection body 120 can be fixed, and at this time, the fastening holes 115a through which the corresponding fastening means are inserted through each of the joint protrusions 115 and 125, 125a) may be perforated.

The connection device (1) according to the present invention made of such a configuration is different from the prior art and connected to the joint part of a plurality of concrete structures (10,10') vertically connected to each other by the pole connection part (100). The combination of the concrete structures (10,10') so that they do not protrude more than the outer diameter of the concrete structure has an excellent effect.

In addition, the upper connector 110 installed on one of the pair of concrete structures (10,10') facing each other differently from the conventional one and the lower connector installed on the upper part of the other concrete structure (10') ( 120) can be separated/combined from each other, but can be stably fixed by tightening of the fastening means (P), so that the construction has a simple effect.

In the above, specific examples of the present invention have been described above. However, the spirit and scope of the present invention are not limited to these specific embodiments, and various modifications and variations are possible within a range that does not change the gist of the present invention. If you grow up, you will understand.

Therefore, the above-described embodiments are provided to fully inform the person of ordinary skill in the art to which the present invention pertains, the scope of the invention, and should be understood as illustrative in all respects and not restrictive. The invention is only defined by the scope of the claims.

1: Connection device for a prefabricated concrete structure according to the present invention
100: Jeonju connector 110: upper connector
111: upper connection hole 113: insertion hole
115: joint projection 117: first jaw
120: lower connector 121: lower connector
123: coupling column 125: joint projection
127: second jaw 130: flow prevention means
131: flow prevention protrusion 133: flow prevention groove
135: pressing hole 140: wedge
141: body 142: hollow
143: flange 144: magnet body
145: incision 146: attachment member
147: engaging projection 148: engaging groove
149: protrusion 150: cover member
200: Jeonju-ju government 210: Fixed body
211: fixing groove 220: connecting piece
221: Fixer C: Central
P: Fastening means 10,10': Concrete structure
11,11': Tensile muscle 13,13': Head

Claims (5)

It is composed of two bodies that can be separated/combined from each other, but is provided on a pair of facing concrete structures (10,10'), respectively, and fixed to the tensile muscles (11,11') of the concrete structures (10,10'). Jeonju connecting portion 100; And
Includes; fixing the electric pole connecting portion 100 made of two bodies by fastening means (P) to connect the pair of the concrete structures (10,10') to each other;
The electric pole connecting portion 100 is made of a circular tube shape in which the insertion hole 113 is formed, but is exposed from any one of a pair of concrete structures 10 and 10' radially inside the center of the insertion hole 113 A plurality of upper connecting holes 111 into which the tensile muscles 11 are inserted are perforated upper connectors 110, and a coupling column 123 that is combined with the insertion holes 113 in a shape fit protrudes upward. A plurality of lower portions made of a tubular shape but facing the upper connecting hole 111 and inserting the tensile muscle 11' exposed in the other concrete structure 10' to which the upper connecting body 110 is not coupled The connecting hole 121 is perforated and is made of a lower connecting member 120 fixed to each other by the Jeonjugogo government 200 together with the upper connecting member 110 and a columnar shape, but the tensile muscles 11 and 11' The through-insertion of the hollow portion 142 is formed in the longitudinal direction, the outer surface of the upper connection hole 111 and the lower connection hole 121 is fitted to fit the inner surface and the upper connection body 110 Connection device of the prefabricated concrete structure, characterized in that it comprises a wedge 140 is provided so that the lower connector 120 is fixed to the concrete structure (10,10').
According to claim 1,
Inside the wedge 140, a magnet body 144 is provided to be mounted by the tensile muscles 11, 11' and magnetic force to have different diameters such that its outer diameter gradually narrows from the top to the bottom, and the wedge Different diameters of the 140 by having a size that is not completely inserted into the upper connecting hole 111 or the lower connecting hole 121, the wedge (by the tension of the tensile muscle (11,11')) 140) the outer surface of the upper connection hole 111 or the lower connection hole 121 so that the fixing force with the inner surface can be maximized, and the wedge 140 outer surface of the tensile muscles (11,11') is the hollow portion (142) Connection device of the prefabricated concrete structure, characterized in that the incision (145) is formed in the longitudinal direction to be easily inserted into.
According to claim 1,
The coupling column 123 inserted into the insertion hole 113 is prevented from flowing to each other after the upper connection body 110 and the lower connection body 120 are joined by the flow prevention means 130. Including more,
The flow preventing means 130 is formed to radially protrude on the inner surface of the insertion hole 113, the protruding radially formed on the outer surface of the coupling column 123, but the flow preventing protrusion 131 is shaped to fit It includes a flow prevention groove 133 is inserted into,
At least one of the plurality of the flow prevention protrusions 131 is formed with a pressing hole 135 to which the fastening means P is fastened, but the fastening means P fastened to the pressing hole 135 has an end of the flow. Connection device of the prefabricated concrete structure, characterized in that to be able to press the outer surface of the coupling column 123 through the prevention groove (133).
According to claim 1,
The Jeonju-ju government 200
The upper connecting body 110 and the lower connecting body 120 includes a pair of joint protrusions 115 and 125 protruding to have the same outer diameter, respectively.
Consists of two bodies each having an arc shape, but includes a plurality of fixtures 210 formed with fixing grooves 211 that can be inserted into the outer surfaces of the pair of joint protrusions 115 and 125 that face each other,
A plurality of the fixing bodies 210 may be pressurized and fixed to the electric pole connecting parts 100 through the fixing holes 221 through which the fastening means P are inserted through the surface contacting the opposite ends of each of the fixing bodies 210. Connection unit of the prefabricated concrete structure, characterized in that the coupling piece 220 is further formed.
According to claim 1,
The Jeonju-ju government 200
The upper connecting body 110 and the lower connecting body 120 includes a pair of joint protrusions 115 and 125 protruding to have the same outer diameter, respectively.
The pair of the joint protrusions 115 and 125 is formed with fastening holes 115a and 125a through which a fastening means P is inserted and the upper connecting body 110 and the lower connecting body 120 can be fixed to each other. Connection device of the prefabricated concrete structure, characterized in that.

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