KR200411005Y1 - Connecting device for concrete form panels - Google Patents

Abstract

The present invention relates to a connection device for concrete formwork, and more particularly, to a connection device for concrete formwork to enable continuous connection of the formwork used for placing and curing concrete structures in a straight line.

The present invention, in order to connect a plurality of formwork used in the construction of concrete, the vertical support pipe for supporting the outside of the formwork and the formwork, and the close contact member located inside the form to face the vertical support pipe, and In the connecting device of the concrete formwork is provided with a fastening means for closely contacting the contact member and the vertical support pipe to the formwork,

The tightening means includes a fastening rod 200 which is bolt-assembled perpendicularly to the front surface of the contact member 100 facing the vertical holding tube so that one end of the pin hole 210 is formed to penetrate the vertical holding tube and protrudes to the outside. It is configured to include a pin member 300 is fitted in the pinhole of the fastening rod in the state coupled through the vertical support pipe to close the vertical support pipe and the close contact member to the formwork.

Concrete, curing, formwork, connector

Description

Connecting device for concrete form panels

1 is a cross-sectional view showing a state in which a connection device of a conventional concrete formwork is installed.

Figure 2 is an exploded perspective view showing the configuration of a conventional concrete formwork connecting device.

Figure 3 is a plan view of a formwork showing a state in which the connection device of the conventional concrete formwork is installed.

Figure 4 is a cross-sectional view showing a state in which the connection device of the concrete formwork of the present invention is installed.

Figure 5 is an exploded perspective view showing the configuration of a conventional concrete formwork connecting device of the present invention.

6 is a plan view of the formwork showing a state in which the connection device of the concrete formwork of the present invention is installed.

Figure 7 is an exploded perspective view showing a state that the safety cover is coupled to the end of the contact stick constituting the subject innovation.

Figure 8 is a cross-sectional view showing a state that the safety cover is coupled to the end of the contact rod constituting the subject innovation.

<Description of the code | symbol about the principal part of drawing>

100 ... contact member 110 ... engagement protrusion

130 ... sealing member 200 ... tension bar

210 Pinhole 220 Groove

230 ... Bolt 300 ... Pin member

The present invention relates to a connection device for concrete formwork, and more particularly, to a connection device for concrete formwork to enable the formwork used for placing and curing concrete in a continuous line.

In general, when constructing a concrete structure, a plurality of formwork is installed to face the outer side of the reinforcing bar, and concrete is placed and cured in the empty space between the formwork facing each other. At this time, the formwork is connected to each other by a separate connection device.

As shown in Figure 1, the conventional concrete formwork connecting device is fixed to the ground to support the lower portion of the formwork (10) and the horizontal support (10) installed at regular intervals above the formwork (1) and the vertical support pipe 20 for supporting the outside of the connecting portion of the formwork (1), the close contact member 30 which is located inside the formwork (1) to face the vertical support pipe 20, and the The contact member 30 and the vertical support pipe 20 is composed of a tightening means 40 to closely contact the formwork (1).

The horizontal support 10 is firmly fixed to the floor by bolts, etc., and a cradle 11 having walls on both sides thereof is provided at the top thereof so that the vertical support pipe 20 is installed. The vertical support pipe 20 is erected vertically at a predetermined interval on the horizontal support 10 through the holder (11).

2 and 3, the thickness of the contact member 30 on the inner surface of the formwork 1 in order to prevent the jaw caused by the contact member 30 on the concrete wall surface after the concrete is cured A mounting groove 2 having the same depth as is formed, and the contact member 30 is in close contact with the inner surface of the formwork 1 through the mounting groove 2.

On the other hand, the formwork (1) and the close contact member 30 is coupled in the correct position and the inner surface of each formwork (1) along the longitudinal direction of the formwork (1) to improve the bonding force with the formwork (1) Grooves (2a) is formed long, the engaging member 31 corresponding to the grooves (2a) is formed along the longitudinal direction of the contact member (30).

The fastening means 40 is one end is attached to the front surface of the contact member 30 toward the vertical support pipe 20 at regular intervals along the longitudinal direction of the contact member 30 and the other end of the vertical support pipe 20 The fastening screw 41 penetrating and protruding to the outside of the vertical support pipe 20 and the end of the tightening screw 41 protruding to the outside of the vertical support pipe 20 are fastened to the contact member 30 and the male. It consists of a tightening nut 42 for closely contacting the jikji main pipe 20 to the formwork (1).

In order to connect the formwork 1 by using the connection device of the conventional gantry formwork configured as described above, first, the horizontal support 10 is fixed to the bottom and to the cradle 11 provided on the upper portion of the horizontal support 10. The formwork 1 is installed, and the vertical support pipe 20 and the contact member 30 are respectively installed at the connection portion of the formwork 1. In this process, an end portion of the tightening screw 41 provided in the close contact member 30 penetrates through the vertical support pipe 20 and protrudes out of the vertical support pipe 20.

In this state, when the tightening nut 42 is fastened to the end of the tightening screw 41 and then the tightening nut 42 is rotated to the right, the seating groove 2 and the recess 2a of the formwork 1 are provided. As the coupling protrusions 31 of the contact member 30 and the vertical support pipe 20 are respectively seated, the contact member 30 and the vertical support holder are firmly adhered to both sides of the formwork 1, thereby stably securing the formwork 1. Will be connected.

In this way, formwork that can form one side wall of the concrete structure is continuously connected.

When the curing of concrete is finished, the formwork 1 is dismantled. When the formwork 1 is to be dismantled, the support nut 42 is rotated to the left to the horizontal support 10 and the holder 11 from the formwork 1. ) Can be dismantled. This completes the concrete structure.

However, the conventional concrete formwork connecting device as described above has a high risk of safety accidents during operation since the tightening screw 41 is protruded from the contact member 30 long, tightening during transportation or construction of the contact member 30. Frequently, the screw 41 is bent or broken. In this case, since the coupling screw 41 and the vertical support pipe 20 are not themselves combined, a problem arises in that the contact member 30 must be replaced with a new one.

In addition, since the tightening screw 41 is protruding to the close contact member 30, it is difficult to load a large amount, so there is a problem that excessive transportation costs are required.

In addition, in order to fasten the tightening nut 42 to the tightening screw 41 or to release the fastening, it has to rotate a plurality of times, resulting in a problem in that workability is greatly reduced while excessive work time is required.

In addition, the seating groove 2 of the formwork 1 is formed to allow a predetermined gap between the contact member 30 when the contact member 30 is seated in consideration of the assembly stability with the contact member 30. As the concrete enters through this gap, it causes a problem of leaving the jaw on the concrete wall surface after the concrete is cured.

In order to solve the above problems, the present invention is easy and quick contact between the close contact member and the vertical support pipe without protruding the contact member to the outside of the contact member during construction, the concrete flows through the seating groove of the formwork It is to provide a concrete structure connecting device is blocked.

In order to achieve the above object, the present invention, in order to connect a plurality of formwork used in the construction of concrete, the vertical support pipe for supporting the outside of the formwork and the formwork, and the inner side of the formwork to face the vertical support pipe In the connecting device of the concrete formwork is provided with a close contact member and a fastening means for closely contacting the close contact member and the vertical support pipe to the formwork, the fastening means is the one end of the pinhole formed through the vertical support pipe to the outside Fastening rods that are vertically bolted to the front of the close contact member facing the vertical support pipe to protrude, and the fastening rod is fitted into the pinhole of the fastening rod in a state in which the fastening rod is coupled to the vertical support pipe to closely adhere the vertical support pipe and the close contact member to the formwork. It is configured to include a pin member.

In addition, the front surface of the close contact member is formed with a coupling projection for guiding the position of the fastening rod in the longitudinal direction, the other end of the fastening rod toward the contact member is formed with a groove engaging with the engaging projection, the tightening rod is the contact member It is assembled as a bolt that is fastened to the groove portion through the coupling projection from the rear.

On the other hand, the inner surface of the form contacting the contact member is formed with a mounting groove having the same depth as the thickness of the contact member so that the contact member is in close contact with the form inner surface, the contact member is formed on both sides of the front surface of the contact member. When it is in close contact with the inner surface of the formwork is preferably adhered to the sealing groove of the formwork to be attached to the sealing member to block concrete from entering the interior of the mounting groove.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms or words used in the present specification and claims are defined in the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to best describe his or her own design. It must be interpreted to mean meanings and concepts.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Like reference numerals refer to like elements, and only different parts will be mainly described so as not to overlap for clarity.

As shown in Figure 4, the present invention is fixed to the ground horizontal support 10 for supporting the lower part of the formwork (1), the horizontal support (10) is installed at regular intervals on the upper formwork (1) and formwork (1) the vertical holding pipe 20 for supporting the outside of the connecting portion, the close contact member 100 which is located inside the mold (1) to face the vertical holding pipe 20, and the contact member 30 And the vertical support pipe 20 is basically provided with a tightening means to be in close contact with the formwork (1).

Since the rest of the configuration except for the fastening means and the contact member 100 is the same as the configuration in the formwork connecting apparatus described in the prior art, a detailed description thereof will be omitted.

As shown in Figure 5 and 6, the tightening means is a fastening rod bolted vertically to the close contact member 100 toward the vertical support pipe 20 to penetrate the vertical support pipe 20 to the outside ( 200 and a pin member 300 fitted into the pinhole 210 of the tightening rod 200.

The tightening rod 200 is made of a light synthetic resin material that is easy to manufacture and has a sufficient length to penetrate the vertical support pipe 20 to the outside. A pinhole 210 is formed at one end of the fastening rod 200 that penetrates the vertical support pipe 20. The pinhole 210 is preferably formed along the longitudinal direction of the fastening rod 200 so as not to be located inside the vertical support pipe 20 due to the thickness change according to the manufacturing error or specification of the formwork (1). The tightening rod 200 is firmly coupled to the contact member 100 in a state in which the fastening rod 200 is in a vertical state in close contact with the front of the contact member 100 through the other end, for convenience of operation or transport and management of the contact member 100. Assembled with bolts 230 to allow disassembly and coupling in dimension.

The bolt 230 is fastened to the other end of the tightening rod 200 through the contact member 100 from the back of the contact member 100. To this end, a screw hole 240 corresponding to the bolt 230 is formed at the other end of the capping rod 200, and the bolt 230 penetrates the adhesive member 100 to facilitate assembly of the capping rod 200. Through holes may be formed.

On the other hand, on the front of the contact member 100, a predetermined coupling protrusion 110 is formed along the longitudinal direction of the contact member 100 so as to accurately guide the fastening position of the tightening rod 200, the tightening rod 200 At the other end of the) it is preferable that the groove 220 is engaged with the coupling protrusion 110 is formed. In this case, one side of the engaging projection 110 engaging with the groove 220 is formed at the same height as the through-hole of the contact member 100, the through-hole of the contact member 100 and the screw hole of the tightening rod 200 A communication hole 111 communicating 240 may be further formed.

The pin member 300 is fitted to the pinhole 210 in the state in which the fastening rod 200 is coupled to the vertical support pipe 20, the lower end of the pinhole so as to be firmly coupled without being separated from the pinhole 210 It is formed to have a cross section smaller than 210 and the cross section is gradually enlarged toward the upper portion to have a larger cross section than the pinhole 210 at the top.

The pin member 300 is firmly fastened to the pinhole 210 by hitting the upper end with a hammer (not shown) in a state where the upper end is in close contact with the outer surface of the vertical support pipe 20, and the pin member 300. While the upper end of the pin member 300 pushes the vertical support pipe 20 toward the formwork 1 in the process of being inserted into the pinhole 210, the vertical support pipe 20 and the close contact member 100 are formed on the formwork 1. Tightening force is applied to ensure close contact.

On the other hand, the inner surface of the formwork (1) in contact with the contact member 100 is seated at the same depth as the thickness of the contact member 100 so that the contact member 100 is in close contact with the inner surface of the formwork (1) Grooves 2 are formed, and when the contact members 100 are in close contact with the inner surface of the formwork 1 on both front sides of the contact member 100, they are closely contacted with the seating grooves 2 of the formwork 1. A sealing member 130 may be attached to block concrete from flowing into the seating groove 2. The front surface of the close contact member may be further formed with an attachment surface 120 is recessed for attaching the sealing member 130.

In addition, as shown in Figures 7 and 8, the end of the tension rod 200 protruding to the outside of the vertical support pipe 20, there is no safety accident that may occur during the construction of the formwork 1 or during the concrete curing process A safety cover 400 having an inlet opened toward the tightening rod 200 may be further provided to completely surround the end of the tightening rod 200 to prevent the cover.

The safety cover 400 is preferably made of soft synthetic resin or rubber made to absorb external shocks.

The safety cover 400 may be coupled to the tightening rod 200 through a variety of methods, but at the end of the tightening rod 200 to be easily disassembled and coupled when the formwork 1 is installed and dismantled. 250 is formed and the inward flange 410 corresponding to the locking step 250 is preferably formed at the inlet of the safety cover 400.

The process of connecting the formwork using the connection device of the concrete formwork of the present invention configured as described above is as follows.

When the holder 11 is installed on the horizontal support 10, the fastening rod 200 is assembled to the contact member 100.

Tightening rod 200 is the groove portion of the tightening rod 200 in the coupling protrusion 110 of the contact member 100 so that the screw hole 240 formed in the groove portion 220 and the coupling hole formed in the coupling protrusion 110 match each other ( 220 is assembled with the contact member 100 very easily through the bolt 230 fastened to the screw hole 240 through the communication hole 111 from the back of the contact member 100 in the engaged state.

At this time, the engaging projection 110 formed in the close contact member 100 so that the tightening rod 200 is accurately positioned in the center of the close contact member 100, and tightened by being in close contact with the groove portion 220 of the tightening rod 200. The rod 200 is guided to be in close contact with the front of the contact member 100 without flowing left and right.

According to the present invention, since the fastening rod 200 is made of a structure capable of disassembling and assembling the contact member 100, it can be easily assembled and used at the work site. In addition, since the assembly is made at the stage just before the contact member 100 is installed, as in the prior art, it protrudes out of the contact member 100 from the manufacturing step of the contact member 100 to cause a safety accident during work, or the contact member ( 100) is difficult to load a large amount of transportation is excessively consumed, it is possible to solve a number of problems that can not cope with the accident of bending or breaking the tightening screw during construction.

When the assembly of the tightening rod 200 is completed, the vertical support pipe 20 and the close contact member 100 are positioned at the connection portion of the formwork 1, respectively. In this process, the end of the tightening rod 200 provided in the close contact member 100 passes through the vertical support pipe 20 and protrudes out of the vertical support pipe 20.

When the tightening rod 200 is coupled to the vertical support pipe 20 through, the pin member 300 is inserted into the pinhole 210 of the tightening rod 200 using a hammer or the like. In this way, the pin member 300 is in close contact with the vertical support pipe 20 by a tightening force that pushes the vertical support pipe 20 toward the formwork 1 while the pin member 300 is inserted into the through hole. 100 is firmly attached to the formwork 1.

Therefore, the vertical holding pipe 20 and the close contact member 100 can be firmly adhered to the form 1 very simply and simply by simply inserting the pin member 300 into the pinhole 210 of the fastening rod 200. It becomes possible.

In this way, formwork that can form one side wall of the concrete structure is continuously connected.

On the other hand, when the sealing member 130 is attached to both sides of the front of the contact member 100, the sealing member 130 prevents the gap between the contact member 100 and the seating groove (2) of the formwork (1) By blocking the concrete from flowing into the seating groove 2, it is possible to prevent the occurrence of jaws on the concrete wall surface after the concrete is cured.

In addition, when the safety cover 400 surrounding the end of the tension rod 200 protruding to the outside of the vertical support pipe 20 is further provided, to the end of the tension rod 200 exposed to the outside of the vertical support pipe 20 This can prevent safety accidents that may occur during construction or curing.

The assembly of the safety cover 400 and the fastening rod 200 is made by pressing the inlet of the safety cover 400 toward the end of the tightening rod 200 and then pressing a predetermined force. When a certain force is applied to the safety cover, the inward flange 410 formed on the safety cover 400 is elastically deformed while passing through the locking jaw 250 to be fastened to the safety cover and the tightening rod. In this state, the inward flange 410 passing through the locking jaw 250 is restored to its original state, and thus the rear cover of the safety cover 400 is restricted by the locking jaw 250 and thus the safety cover 400 may be subjected to a predetermined force or more. Until it is not separated from the clamping rod 200.

After curing of the concrete structure, the safety cover 400 is pulled over a certain force to separate the fastening rods 200 and then the pin member 300 is separated from the fastening rods 200, the close contact of the formwork (1) While being released, it is possible to dismantle the vertical support pipe 20, the contact member 100 and the formwork 1 in turn. The tightening rod 200 is separated from the contact member 100 and recycled.

According to the connection device of the concrete formwork of the present invention configured as described above, the fastening rod is fixed vertically to the contact member so that the vertical support pipe and the contact member in close contact with the formwork can be disassembled and assembled with the contact member for easy assembly at the work site. Since the tightening rod is prevented from protruding from the contact member from the manufacturing step of the contact member in advance, it is possible to prevent a safety accident, and can be loaded a large amount when transporting the contact member, greatly reducing the transportation cost, construction Even if bent or broken in the middle, it is possible to replace the corresponding fastening rod immediately without replacing the entire contact member with a new one as in the prior art, thereby improving workability.

In addition, the vertical holding pipe and the close contact member can be firmly adhered to the formwork by a simple operation of coupling the pin member to the fastening rod, thereby saving work time and workability compared to the conventional tightening method through the close contact nut and the tightening screw. The effect is greatly improved.

In addition, by installing a sealing member between the seating groove of the formwork and the contact member to block concrete from entering, it is possible to prevent the occurrence of jaws on the concrete wall surface after the concrete is cured.

In addition, by coupling the safety cover to the end of the tension rod protruding to the outside of the vertical support pipe may prevent safety accidents that may occur during formwork or concrete curing process.

Claims (3)

In order to connect a plurality of formwork used in the construction of concrete, the vertical support pipe for supporting the outside of the formwork and the formwork, the close contact member located inside the form to face the vertical support pipe, and the contact member and In the connecting device of the concrete formwork with a fastening means for closely contacting the vertical support pipe to the formwork, The tightening means includes a tightening rod vertically bolted to the front of the contact member facing the vertical holding tube such that one end of the pin hole is formed through the vertical holding tube and protrudes to the outside, and the tightening rod is coupled to the vertical holding tube. It is fitted to the pin hole of the rod connecting device of the concrete formwork, characterized in that it comprises a pin member for close contact with the formwork and the vertical support pipe. The method of claim 1, The front surface of the close contact member is formed with a coupling protrusion for guiding the coupling position of the tightening rod in the longitudinal direction, The other end of the tightening rod facing the contact member is formed with a groove engaging with the engaging projection, The fastening rod is connected to the concrete formwork, characterized in that the assembly is assembled as a bolt that is fastened to the groove portion through the coupling projection from the back of the contact member. The method of claim 1, The inner surface of the form contacting the contact member is formed with a mounting groove having the same depth as the thickness of the contact member so that the contact member is in close contact with the form inner surface, When the contact member is in close contact with the inner surface of the formwork on both sides of the contact member is in close contact with the seating groove of the formwork is characterized in that the sealing member is attached to block the concrete from entering into the seating groove Formwork linkage.

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