Method for installing a concrete conveying pipe of a concrete pump car boom using a jig

Abstract

The present invention relates to a method for installing a concrete transfer pipe of a concrete pump truck boom using a jig, comprising: a first step of preparing a boom and manufacturing a plurality of jigs so as to be coupled to a connection part of the boom; a second step of mounting a fixed jig on one side of the boom to fix one end of a reference pipe by means of a clamp, and mounting an open jig on the other side of the boom to allow the reference pipe to be inserted and seated; a third step of inserting one end of the reference pipe into the fixed jig, fixing the reference pipe by fastening a clamp to the outer surface of the fixed jig, and placing the reference pipe on the open jig and fitting it to be seated; a fourth step of coupling a plurality of pipe supports to one side of the boom and arranging them parallel to the fixed jig and the open jig, and mounting a pipe support having a pipe seat on the end of the pipe support to which the reference pipe is seated; and a fifth step of separating and removing the reference pipe and removing the fixed jig and the open jig. and a sixth step of securing the transfer pipe after seating it on the pipe sheet from which the reference pipe has been removed; characterized by including

Description

Technology Field

[0001] The present invention relates to a method for installing a concrete transfer pipe of a concrete pump truck boom using a jig, and more specifically, to a method for installing a concrete transfer pipe of a concrete pump truck boom using a jig that allows the transfer pipe to be accurately mounted on the boom of a concrete pump truck. Background Technology

[0002] Reinforced concrete is widely used in the construction of buildings or structures.

[0003] In other words, a construction method in which formwork is made, reinforcing bars are placed, and concrete is poured and cured to complete the structure is widely practiced. Most buildings are constructed in this manner.

[0004] Once the reinforcing bars are placed, concrete is poured into the formwork with water and cured, and a concrete pump truck is used in this process.

[0005] Referring to FIG. 1, a concrete pump truck (R) is equipment that transports concrete over a long distance using a boom (100).

[0006] A transfer pipe (P) for supplying concrete mortar is installed on the boom (100) of the concrete pump truck (R).

[0007] Korean Patent No. 10-1763830 discloses a 'concrete pump truck'.

[0008] Looking at the prior art, it can be seen that a transfer pipe is arranged parallel to the boom, and a number of supports connecting the boom and the transfer pipe are connected.

[0009] Conventionally, booms are manufactured by cutting steel plates and then fabricating and welding them, which consequently makes it difficult to produce products of accurate specifications. In other words, it has been practically difficult to manufacture booms so that their height, width, and length correspond exactly 1:1 with the manufacturing drawings, i.e., CAD drawings.

[0010] In addition, according to the prior art, manufacturing errors occurred when connecting the transfer pipe support to the boom. Even if the transfer pipe support is welded by accurately setting a reference point according to the dimensions indicated on the drawing, it was difficult to perform the connection work accurately due to various error factors such as the individual worker's welding characteristics, filing method, working angle, method of interpreting the drawing, and worker error.

[0011] Due to the non-standard nature of these booms and error factors during the assembly process of the transfer pipe supports, serious problems arose where the transfer pipes at each boom connection were not accurately connected when assembling each boom later, inevitably resulting in differences in pipe (transfer pipe) lengths, eccentricity, and deviations between units. If the pipe lengths differ by unit, pipes must be custom-made and fitted on-site for each unit, and in the case of eccentricity, serious problems arise, such as cracking in the welds of the connection points and eventually fracture.

[0012] Due to these issues, concrete leakage can occur during the pouring process at the site, rendering work impossible for pump truck users. If this situation persists, the pump truck in question may be banned from entering specific sites altogether, potentially resulting in significant business losses. Prior art literature

[0013] Republic of Korea Registered Patent No. 10-1763830 The problem to be solved

[0014] The present invention was devised to resolve the problems of the prior art, and aims to provide a method for installing a concrete transfer pipe of a concrete pump truck boom using a jig, which can reduce working time by welding a pipe support and a sheet in close contact with a reference pipe placed on top without filing or reading drawings, reduce worker error or mistakes using the same principle as stamping a mold with a press, and improve work efficiency by eliminating the need to force-fit the transfer pipe to the pipe support that has been worked on through the jig.

[0015] In addition, the purpose is to provide a method for installing concrete transfer pipes of a concrete pump truck boom using a jig that has significantly improved mechanical precision and durability, such that by utilizing the jig, the centers of the 1st, 2nd, 3rd, 4th, 5th, and 6th stage connection points are accurately aligned, so there is no eccentricity when unfolding and folding the pipes, and there is almost no probability of cracks or fractures occurring in the pipe supports. means of solving the problem

[0016] The objective of the present invention described above is to provide a first step of preparing a boom and manufacturing a plurality of jigs so as to be coupled to the connecting part of the boom; a second step of mounting a fixed jig on one side of the boom to fix one end of a reference pipe by means of a clamp, and mounting an open jig on the other side of the boom to allow the reference pipe to be inserted and seated; a third step of inserting the end of the reference pipe into the fixed jig, fixing the reference pipe by fastening a clamp to the outer surface of the fixed jig, and placing the reference pipe on the open jig and fitting it to be seated; a fourth step of mounting a pipe support on one side of the boom, positioning it parallel to the fixed jig and the open jig, and mounting a pipe support having a pipe seat on the end of the pipe support to which the reference pipe is seated; and a fifth step of separating and removing the reference pipe and removing the fixed jig and the open jig. This can be achieved by a method for installing a concrete transfer pipe of a concrete pump truck boom using a jig, comprising: a sixth step of seating the transfer pipe on the pipe sheet from which the above-mentioned reference pipe has been removed and then fastening it.

[0017] In the above fourth step, the pipe support includes a body part having an insertion part formed at one end that is coupled to a boom and a fitting hole formed at the other end, and the pipe sheet is characterized by including a support having an arc-shaped recess that is coupled to the other end of the body part of the pipe support, a clamp formed that is hinge-coupled to the support, and a round bar part formed at one end of the support and welded to the body part of the pipe support.

[0018] The above fixed jig is characterized by comprising a rod-shaped body having a certain length, a first fitting part formed on one side of the rod-shaped body and fitted into a hinge hole formed on the other side of the boom, and a pipe fixing part formed perpendicularly to the other side of the rod-shaped body and having a flange formed at the end of the outer surface.

[0019] The above-described open jig is characterized by comprising a rod-shaped body having a certain length, a second fitting part formed on one side of the rod-shaped body and fitted into a hinge hole formed on one side of the boom, and a pipe seating part attached to the other end of the rod-shaped body and having a seating groove into which a reference pipe is inserted. Effects of the invention

[0020] According to the present invention, welding is performed by simply pressing the pipe support and pipe sheet against the seated pipe without filing or drawing, thereby reducing the working time by about 1 hour per structure, and the operator's mistakes or errors can be reduced using the same principle as pressing a mold with a press, and there is no need to force-fit the transfer pipe to the supports worked on through the jig, so the work efficiency can be improved.

[0021] In addition, the connection points are precisely centered, eliminating eccentricity when unfolding and folding pipes, and virtually reducing the probability of cracks or fractures in the pipe supports, resulting in significantly improved mechanical precision and durability. Brief explanation of the drawing

[0022] FIG. 1 is a drawing showing a concrete pump truck to which the concrete transfer pipe of the present invention is applied. FIG. 2 is a process diagram for a method of installing a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention. FIG. 3 is a process example diagram sequentially showing a method for installing a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention. FIG. 4 is a plan view showing an example of the installation of a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention. FIG. 5 is a front view showing an example of the installation of a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention. FIG. 6 is a cross-sectional view of each part in FIG. 5 above, FIG. 7 is a perspective view showing the fixed jig and the open jig of the present invention. Specific details for implementing the invention

[0023] Preferred embodiments are described in detail below based on the attached drawings.

[0024] The embodiments described below are intended to provide a detailed description sufficient for a person skilled in the art to easily practice the invention, and do not imply that the technical scope and concept of the invention are limited thereby.

[0025] In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and terms specifically defined in consideration of the configuration and operation of the present invention may vary according to the intent or convention of the user or operator, and it should be noted that the definitions of such terms must be based on the content throughout this specification.

[0026] Among the attached drawings, Fig. 1 is a drawing showing a concrete pump truck to which the concrete transfer pipe of the present invention is applied; Fig. 2 is a process diagram for a method of installing a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention; Fig. 3 is a process example diagram sequentially showing a method of installing a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention; Fig. 4 is a plan view showing an example of installing a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention; Fig. 5 is a front view showing an example of installing a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention; Fig. 6 is a cross-sectional view of each part in Fig. 5; and Fig. 7 is a perspective view showing a fixed jig and an open jig of the present invention.

[0027] The method for installing a concrete transfer pipe of a concrete pump truck boom using a jig according to the present invention is,

[0028] A first step (S1) of preparing a boom (100) and manufacturing a plurality of jigs so that they can be connected to the connection part of the boom (100);

[0029] A second step (S2) in which a fixed jig (2) that fixes one end of a reference pipe (P-0) by means of a clamp (C) is mounted on one side of the boom (100), and an open jig (4) into which the reference pipe (P-0) can be fitted and seated is mounted on the other side of the boom (100);

[0030] A third step (S3) in which the end of the reference pipe (P-0) is inserted into the fixed jig (2), the reference pipe (P-0) is fixed by fastening a clamp (C) to the outer surface of the fixed jig (2), and the reference pipe (P-0) is placed on the open jig (4) and inserted to be seated;

[0031] A fourth step (S4) in which a pipe support (6) is attached to one side of the boom (100) and arranged parallel to a fixed jig (2) and an open jig (4), and a pipe support (6) is mounted having a pipe seat (7) on which a reference pipe (P-0) is seated at the end of the pipe support (6);

[0032] Step 5 (S5) of separating and removing the above reference pipe (P-0) and removing the fixed jig (2) and the open jig (4); and

[0033] The method comprises a sixth step (S6) of securing the transfer pipe (P) after it has been placed on the pipe sheet (7) from which the reference pipe (P-0) has been removed.

[0034] In the first step (S1), the boom (100) is formed by assembling metal plates to have a square cross-section and a certain length, and hinge holes (H) are formed at both ends.

[0035] The reference pipe (P-0) or the transfer pipe (P) is connected parallel to the side of the boom (100). The reference pipe (P-0) serves as a guide that accurately pre-designates the location where the transfer pipe (P) will be positioned, and is reusable. The direction of the transfer pipe (P) can be set to match the direction of movement of the boom (100), so that the concrete mortar injection work can be carried out smoothly.

[0036] In the second stage (S2), a fixed jig (2) and an open jig (4) are mounted on one side and the other side of the boom (100), respectively, so that the optimal spacing and height at which the boom (100) and the reference pipe (P-0) or the subsequent transfer pipe (P) are to be installed can be set.

[0037] The above fixed jig (2) comprises a rod-shaped body (22) having a certain length, a first fitting part (24) formed on one side of the rod-shaped body (22) and fitted into a hinge hole (H1) formed on one side of the boom (100), and a pipe fixing part (26) formed perpendicularly on the other side of the rod-shaped body (22) and having a flange (262) formed at the outer circumference end.

[0038] The fixed jig (2) is horizontally positioned such that the first fitting part (24) of the rod-shaped body (22) is fitted into the hinge hole (H1) on one side of the boom (100).

[0039] The above open jig (4) includes a rod-shaped body (42) having a certain length, a second fitting part (44) formed on one side of the rod-shaped body (42) and fitted into a hinge hole (H2) formed on the other side of the boom (100), and a pipe seating part (46) attached to the other end of the rod-shaped body (42) and having a seating groove (460) into which a reference pipe (P-0) is inserted.

[0040] The open jig (4) is horizontally positioned such that the second fitting part (44) of the cylindrical body (42) is fitted into the other hinge hole (H2) of the boom (100).

[0041] Although the fixed jig (2) provides a more stable connection force, the reason for not making both jigs fixed on a single boom (100) is that if both are fixed, the required length of the reference pipe (P-0) varies depending on the length of the boom (100), causing the inconvenience of having to manufacture the reference pipe (P-0) every time. It is preferable to make one open jig (4) so ​​that there is no problem with accuracy even if only the reference pipe (P-0) is inserted and seated.

[0042] In the third step (S3), the fixed jig (2) on both sides and the reference pipe (P-0) are combined, and the reference pipe (P-0) is placed on the open jig (4) to form a snap-fit ​​connection.

[0043] Therefore, a reference pipe (P-0) is positioned parallel to the side of the boom (100).

[0044] Since the reference pipe (P-0) must be replaced with the transfer pipe (P) in the future, the reference pipe (P-0) is positioned at an accurate angle to correct the position and angle.

[0045] In the fourth step (S4), multiple pipe supports (6) are installed to connect the boom (100) and the reference pipe (P-0).

[0046] Each pipe support (6) is installed parallel to the fixed jig (2) and the open jig (4) to support the reference pipe (P-0).

[0047] The pipe support (6) includes a body part (60) having an insertion part (61) formed at one end that is coupled to the boom (100) and a fitting hole (602) formed at the other end.

[0048] The pipe support (6) can be welded or secured by fastening a nut (63) after the insertion part (61) is joined through in whole or in part across the vertical direction of the boom (100).

[0049] A pipe sheet (7) is attached to the end of each pipe support (6).

[0050] The pipe sheet (7) is formed with a base (72) having an arc-shaped recess (720) that is connected to the other end of the body part (60) of the pipe support (6), a clamp (73) that is hinge-connected to the base (72) and fastened, and a round bar part (74) formed at one end of the base (72) and welded to the body part (60) of the pipe support (6).

[0051] Therefore, the round bar portion (74) of the pipe sheet (7) is welded to the end of the pipe support (6).

[0052] At this time, the pipe sheet (7) is set to an optimal angle and then welded, thereby enabling the accurate installation of the transfer pipe (P).

[0053] Step 5 (S5) removes the fixed jig (2), the open jig (4), and the reference pipe (P-0), excluding the pipe support (6).

[0054] Step 6 (S6) involves placing the transfer pipe (P) on the pipe sheet (7) of each pipe support (6) and then welding it to secure it.

[0055] Referring to FIGS. 3 and 4, the transfer pipe (P) is installed parallel to the side of the boom (100), but is installed so as to be inclined downward, upward, or horizontal as it goes from one side to the other, and can be installed at an optimal position by considering the bending angle and direction of the pump truck. The installation of the transfer pipe (P) can be done simply and accurately by installing it along a path set by a fixed jig (2) and an open jig (4) that are set at an optimal position in advance.

[0056] From the second step (S3) to the sixth step (S4), it is preferable to work with the boom (100) at the bottom and the jig (2, 4), pipe support (6), and reference pipe (P-0) all at the top.

[0057] Meanwhile, by installing a jig at the connection point of each boom, eccentricity can be minimized when spreading and folding the transfer pipes together. In addition, cracks and breakage can be prevented in each pipe support (6).

[0058] Referring to FIG. 4, one side boom (100) and the other side boom (100') can be hinge-connected and folded.

[0059] A transfer pipe (P) connected to one side boom (100) and a transfer pipe (P') connected to the other side boom (100') each have an elbow joint (L, L') connected to their ends, and each elbow joint (L, L') is hinge-connected.

[0060] A pipe sheet (7) is attached to the hinged portion of each elbow joint (L, L'), and a sealing seal is interposed between the portions where both elbow joints (L, L') are in close contact, and then a clamp (73) is attached to wrap around it.

[0061] Accordingly, with the fixed jig (2) or open jig (4) attached to the hinge portion of the one side boom (100) and the other side boom (100'), the pipe support (6) is mounted, and the transfer pipe (P) is connected, and each elbow joint (L, L') formed at the end of the two sides of the transfer pipe (P) is connected.

[0062] As can be seen in the detailed view of FIG. 4, the position of the elbow joint (L, L') connecting both sides is located on the same line as the position where the fixed jig (2) or the open jig (4) is joined.

[0063] Therefore, if the fixed jig (2) or the open jig (4) is removed and the hinge shaft (H3) is connected in its place, the connection part of the elbow joint (L, L') connected on both sides is positioned on the same line as the hinge shaft (H3), so the reference point for the hinge rotation of the transfer pipes (P) on both sides becomes the same as the hinge shaft (H3), and thus the connection part of the transfer pipes (P, P') on both sides can be rotated without being damaged during the folding process of the booms (100, 100') on both sides.

[0064] Although described in relation to preferred embodiments, those skilled in the art will readily recognize that various modifications and variations are possible without departing from the essence and scope of the invention, and it is obvious that all such changes and modifications fall within the scope of the appended claims. Explanation of the symbols

[0065] 2 : Fixed jig 4 : Open jig 6 : Pipe support 7 : Pipe sheet P-0 : Standard pipe P : Transfer pipe 100 : Boom

Claims

Claim 1 A first step of preparing a boom and manufacturing a plurality of jigs so that they can be coupled to the connection part of the boom; a second step of mounting a fixed jig on one side of the boom to secure one end of a reference pipe by means of a clamp, and mounting an open jig on the other side of the boom to allow the reference pipe to be inserted and seated; a third step of inserting one end of the reference pipe into the fixed jig, securing the reference pipe by fastening a clamp to the outer surface of the fixed jig, and placing the reference pipe on the open jig to insert and seat it; a fourth step of coupling a plurality of pipe supports to one side of the boom and arranging them parallel to the fixed jig and the open jig, and mounting a pipe support having a pipe seat on the end of the pipe support to which the reference pipe is seated; a fifth step of separating and removing the reference pipe and removing the fixed jig and the open jig; A method for installing a concrete transfer pipe of a concrete pump truck boom using a jig, characterized by including: a sixth step of seating the transfer pipe on the pipe sheet from which the reference pipe has been removed and then fastening it. Claim 2 A method for installing a concrete transfer pipe of a concrete pump truck boom using a jig, wherein in the fourth step, the pipe support comprises a body portion having an insertion portion formed at one end that is coupled to the boom and a fitting hole formed at the other end, and the pipe sheet comprises a base having an arc-shaped recess that is coupled to the other end of the body portion of the pipe support, a clamp formed that is hinge-coupled to the base, and a round bar portion formed at one end of the base and welded to the body portion of the pipe support. Claim 3 A method for installing a concrete transfer pipe of a concrete pump truck boom using a jig according to claim 1, wherein the fixed jig comprises a cylindrical body having a certain length, a first fitting part formed on one side of the cylindrical body and fitted into a hinge hole formed on the other side of the boom, and a pipe fixing part formed perpendicularly to the other side of the cylindrical body and having a flange formed at the end of the outer surface. Claim 4 A method for installing a concrete transfer pipe of a concrete pump truck boom using a jig according to claim 1, wherein the open-type jig comprises a cylindrical body having a certain length, a second fitting part formed on one side of the cylindrical body and fitted into a hinge hole formed on one side of the boom, and a pipe seating part attached to the other end of the cylindrical body and having a seating groove into which the reference pipe is inserted.

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