KR0136968Y1 - Up-down contract structure of high-intensity pile mold - Google Patents

Abstract

In the upper and lower mold fastening structure of the high strength pile mold, in the present invention, the high strength pile mold which can smoothly perform the manufacturing process of the high strength pile by preventing the nut from being detached from the fastening means installed on the lower mold when the high strength pile is manufactured. In order to provide the upper and lower mold fastening structure of the upper frame and the bolt is installed on the flange of the lower mold, and the fastening means is coupled to the upper and lower molds, and the fastening means is coupled to the outer nut and The upper and lower mold fastening structure of the high-strength pile mold consisting of a support screw which is screwed into the outer nut and an inner nut positioned inside the outer nut while being in contact with one side of the support, thereby producing a high strength pile. The inner nut to be installed on the mold is not detached from the outer nut, so that high strength pile can be manufactured smoothly, When the side nut is repaired and replaced, the supporter can be easily removed, so it can be easily replaced. In addition, the outer nut does not break down even when used for a long time, thereby improving productivity.

Description

Upper and lower mold fastening structure of high strength pile mold

1 is an exploded perspective view showing a part of the fastening member of the lower mold in the upper and lower mold fastening structure of the high-strength pile mold according to the embodiment of the present invention.

Figure 2 is an attitude on the use of some incision of the upper, lower mold fastening structure of the high-strength pile mold according to an embodiment of the present invention.

3 is a front view showing a general high strength pile template.

4 is a partial cross-sectional view showing the upper and lower mold fastening structure of the conventional high strength pile mold.

* Explanation of symbols for main parts of the drawings

2: upper frame 4, 10: flange

6: bolt 8: underframe

12: fastening means 14: inner nut

16: settle groove 18: thread

20: fixing groove 22: outer nut

24: support 26: threaded portion

28: body 30: insertion groove

32: groove 34: base plate

35: nut 37: space part

36, 40: spring sheet 38: spring

[Industrial use]

The present invention relates to a fastening structure of the upper and lower molds of the high strength pile mold, and more particularly, when the high strength pile is manufactured, the fastening state of the upper and lower molds is continuously maintained so that the high strength pile can be smoothly produced and the productivity is high. It relates to the upper and lower mold fastening structure of the high-strength pile mold to improve the.

[Prior art]

In general, high-rise buildings, heavy load factories, bridges, etc. are striking piles (a pile) to reinforce strength on soft ground.

The file contains a steel file and a concrete file.

The concrete pile has a high strength that is made by reinforcing the concrete with internal reinforcing bars, and a high strength made by rapid curing device under stress condition by introducing stress by reinforcing the tension bar called Ulbon inside, pouring concrete and forcibly tensioning it. There is a file.

Recently, high strength piles are used which are much higher than ordinary concrete piles, and ordinary concrete piles are gradually being used except for lightweight construction.

The manufacturing process of the above high strength pile is briefly described as follows.

First, a bag of reinforcement called reinforcing bar is placed in the lower mold 102 of the mold 100 as shown in FIG. 3 (knitting process).

Then, the amount of concrete dough suitable for the pile size is put into the lower mold 102 (injection process).

Then, a fastening member composed of a bolt 106 installed on the upper mold 104 and a nut 108 provided on the lower mold 102 with the upper mold 104 placed on the upper mold 102. The upper mold 104 and the lower mold 102 are fastened using the mold 110 (shaping process).

Then, the mold 100 is rotated at a high speed in the centrifugal molding machine to round the concrete dough in the mold to make the structure dense and form a pile (centrifugal process).

Finally, after curing so as to generate a constant strength by steam (steem), the bolt 106 of the upper mold 104 is released from the nut 108 of the lower mold 102, the upper mold 104 and the lower mold 102 ) And take out the completed file from the lower mold (102).

Conventionally, as shown in FIG. 4, the upper and lower mold fastening structures of the high strength pile mold include bolts 114 passing through the flanges 112 and 116 of the upper mold 104 and the lower mold 102, It consists of a nut 118 installed on the flange 116 of the lower mold (102).

The bolt 114 is welded to the flange 112 of the upper mold 104 and is screwed while penetrating the inside of the nut 119, the spring sheet 120 is formed is installed on the upper mold 104.

The nut 119 is provided with a spaced portion 121 in which a thread is formed so that the bolt 114 can be screwed therein, and an elastic spring 122 is inserted into the outer circumference thereof.

A spring sheet 124 is installed below the head of the bolt 114 to support the other end of the spring 122 in contact with the nut 119 on which the spring sheet 124 supporting the spring 122 is formed. .

The nut 118 is built in the nut 126 welded to the lower end of the flange 116 of the lower mold 102.

In addition, the nut collection 126 is provided with a space portion 125 for placing the nut 118, and the groove 128 is cut and formed in the lower portion of the inner peripheral surface of the space portion 125. .

The groove 128 has an annular support ring 130 for supporting the nut 118 to prevent the nut 118 from falling out.

Referring to the operation of the upper and lower mold fastening structure of the conventional PHC pile mold as follows.

First, the upper mold 104 is placed on the upper mold 102 and the bolt 114 is tightened.

Here, when the bolt 114 is tightened, it is tightened using a predetermined tightening device, but is tightened with a force of approximately 70 to 80 torque.

At this time, since the nut 118 is fixed by the nut zip 126, the nut 118 does not turn like the bolt 114, and the bolt 114 and the nut 118 are easily screwed together.

In addition, the upper mold frame 104 and the lower mold frame 102 is in close contact with the elastic force of the spring 122 installed on the upper mold frame 104.

When the nut 118 is worn or damaged for a long time, the support ring 130 installed in the groove 128 of the nut 126 is pulled out and the nut 118 is separated from the nut 126. After replacing the new nut 118, the support ring 130 is installed in the groove 128 of the nut 126 to support the nut 118.

[Problem trying to solve]

However, the upper and lower mold fastening structure of the conventional high-strength pile mold has a problem in that the support ring is made of an annular ring when tightening the bolt, so that it does not endure the tightening force and is thrown out of the groove while falling inside.

In addition, the nut is pulled out of the nut house by the separation of the support ring can not perform the fastening of the upper and lower molds, a problem that the manufacturing process is not performed.

In addition, the lower jaw of the groove cut into the lower part of the nut house is worn out for a long time, and the support ring in the groove is not fixed and is pulled out, and the nut in the inside of the nut house also has a problem of falling out.

In addition, when repairing or replacing a broken nut house, the nut house must be separated from the flange of the lower mold, but the flange of the nut house and the lower mold is fixed by welding, which makes it difficult and inconvenient to separate the work.

In addition, the nut is missing due to the separation of the support ring as described above, the gap between the upper and lower molds are opened, there is a problem that the concrete dough filled in the mold by this gap flows out of the mold by centrifugal force during centrifugal molding.

[Means to solve the problem]

The present invention has been devised to solve these problems in the prior art, the object of the present invention, so that the nut is not detached from the fastening means installed on the lower mold during the production of high strength pile can be smoothly performed the manufacturing process of the high strength pile. It is to provide a fastening structure of the upper and lower mold of the high strength pile mold.

In order to achieve the above object, the upper and lower mold fastening structure of the high-strength pile mold of the present invention is a bolt that is installed on the flange of the upper mold and the lower mold, and the bolt is fastened to couple the upper and lower molds Means;

The fastening means includes an outer nut, a support screwed into the outer nut, and an inner nut positioned inside the outer nut while in contact with one side of the support.

[Action]

The upper and lower mold fastening structure of the high strength pile mold prevents the inner nut installed on the lower mold from being separated from the outer nut during the manufacture of the high strength pile, thereby smoothly manufacturing the high strength pile and repairing the broken inner nut. And since it can be easily carried out when replacing and does not have to dig a groove into the outer nut, the outer nut does not break even when used for a long time, thereby eliminating the decrease in productivity caused by breakage of the outer nut.

EXAMPLE

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

1 and 2 show the upper and lower mold fastening structure of the high strength pile mold according to the embodiment of the present invention, the upper and lower mold fastening structure of the high strength pile mold of the present embodiment, the upper mold (2) And a bolt 6 penetrating the flange 4 and 10 of the lower mold 8.

The bolt 6 is screwed while penetrating the inside of the nut 35 welded to the upper portion of the flange 4 of the upper mold (2).

The nut 35 forms a spring sheet 36 protruding from the outer circumference thereof, and a space 37 formed with a screw thread is provided on the inner circumference thereof to allow the bolt 6 to be screwed thereon, and an elastic spring 38 on the outer circumference thereof. The spring sheet 36 is in contact with the upper portion and is inserted.

A nut 35 having a spring seat 36 for supporting the spring 38 is screwed into the lower part of the head of the bolt 6, and the upper end of the spring 38 is in contact with the nut 35. The spring sheet 40 supporting the is installed.

The upper and lower mold fastening structures of the high strength pile mold are installed on the flange 10 of the lower mold 8 and fastened to the bolt 6 to couple the upper and lower molds 2 and 8 to each other. And (12).

The fastening means 12 includes an outer nut 22, a support 24 for screwing into the outer nut 22, and the outer nut 22 while contacting one side of the support 24. It consists of an inner nut 14 located inside the.

The outer nut 22 forms a settling groove 16 for allowing the inner nut 14 to be screwed to the bolt 6 inside the upper portion and an inner tube with the settling groove 16 at the lower portion thereof. And to form a fixing groove 20 having a screw thread 18 on the inner circumferential surface.

The settle groove 16 has an inner circumferential surface formed in the same shape as the outer shape of the inner nut 14 so that the inner nut 14 does not run out.

The outer nut 22 is welded to the lower end of the flange 10 of the lower mold 8 and installed in the settling groove 16 to fix the inner nut 14.

In addition, the outer nut 22 may fix the inner nut 14 by screwing the support 24 to the fixing groove 20.

At this time, since the support 24 is positioned below the inner nut 14, the supporting nut 24 may be coupled to the bolt 6 without supporting the inner nut 14 without falling down.

The support 24 is provided in the body 28 and the body 28 to form a threaded portion 26 coupled to the threaded portion 18 of the fixing groove 20 on the outer circumference and the bolt 6 An insertion groove 30 is formed to allow the lower end of the lid to be inserted.

At the bottom of the body 28, a disc-shaped base plate 34 having a groove 32 communicating with the insertion groove 30 is formed to easily detach the support 24 from the fixing groove 20. Form to be detachable.

Referring to the operation of the upper, lower mold clamping structure of the high-strength pile mold of the present embodiment as follows.

First, the upper mold 2 is placed on the upper mold 8 and the bolt 6 is tightened.

Here, when tightening the bolt 6 is tightened by using a predetermined tightening device is tightened by a force of approximately 70 ~ 80 Torgue.

At this time, the support 24 supports the inner nut 14 and is screwed to the outer nut 22 so that it is not affected by the tightening force of 70 to 80 torque and does not fall out at all.

Since the inner nut 14 is fixed by the outer nut 22, the inner nut 14 does not turn like the bolt 6, and the bolt 6 and the inner nut 14 are easily coupled to each other.

In addition, the upper mold (2) and the lower mold (8) is more firmly in close contact with the elastic force of the spring 38 is installed on the upper mold (2).

When the inner nut 14 is worn or damaged, the supporter 24 in the fixing groove 22 of the outer nut 22 is formed using the groove 32 formed in the base plate 34. Rotate out with a screwdriver, remove the inner nut 14 from the outer nut 22, replace the new inner nut 14, and then install the support 24 in the fixing groove 20 of the outer nut 22. .

[effect]

As described above, the upper and lower mold fastening structure of the high strength pile mold of the present invention can smoothly manufacture the high strength pile because the inner nut installed on the lower mold is not detached from the outer nut when the high strength pile is manufactured. When the inner nut is repaired and replaced, the supporter can be easily removed to replace the nut, and even when used for a long time, the outer nut is not broken, thereby improving productivity.

Claims (8)

Bolts 6 penetrating the flanges 4 and 10 of the upper mold 2 and the lower mold 8 and flanges 10 of the lower mold 8 are fastened to the bolts 6 and , The upper and lower mold fastening structure of the high-strength pile mold including the fastening means 12 for coupling the lower mold (2) (8). 2. The fastening means (12) according to claim 1, wherein the fastening means (12) is in contact with an outer nut (22), a support (24) for screwing into the outer nut (22), and one side of the support (24). The upper and lower mold fastening structure of the high strength pile mold including the inner nut 14 positioned inside the outer nut 22. 3. The outer nut (22) according to claim 2, wherein the outer nut (22) has a settling groove (16) for placing the inner nut (14) screwed to the bolt (6), and the settling groove (16). The upper and lower mold fastening structure of the high-strength pile mold including a fixing groove 20 having an internal thread and having a thread 18 on its inner circumferential surface. The support 24 is provided with a body 28 forming a threaded portion 26 engaging with the threaded portion 18 of the fixing groove 20 on the outer circumference, and provided inside the body 28. And a groove having an insertion groove 30 through which the lower end of the bolt 6 can be inserted, and a groove 32 communicating with the insertion groove 30 at the lower portion of the body 28. The upper and lower mold fastening structure of the high strength pile mold including the base plate (34). The upper and lower mold clamping structure of claim 1, wherein the bolt (6) is screwed while penetrating the inside of the nut (35) welded to the upper flange (4) of the upper mold (2). 6. The high strength pile mold according to claim 5, wherein the nut (35) is formed of a space portion (37) formed with threads so that the bolt (6) can be screwed on the inner circumference, and a spring sheet (36) protruding outward from the bottom thereof. Upper and lower mold fastening structure. The upper and lower mold fastening structure of the high-strength pile mold of claim 6, wherein an elastic spring (38) is inserted into the outer circumference of the nut (35) to further secure the coupling of the upper and lower molds (2) (8). The upper end of the spring 38 according to claim 1 or 6, wherein the upper end of the spring 38 is brought into contact with the nut 35 on which the spring seat 36 for supporting the spring 38 is formed. The upper and lower mold fastening structure of the high-strength pile mold installed with the supporting spring sheet 40.