ES2378046B1 - SECURITY SYSTEM FOR HANDLING PIPES AND PROCEDURES FOR VERTICAL EXTRACTION, TURNING AND MOUNTING WITH SUCH SYSTEM. - Google Patents

Abstract

Safety system for handling pipes and vertical extraction procedures, turning and mounting with said system. The safety system for handling pipes, applicable to reinforced concrete pipes (1, 2) comprises several safety points (3, 3?) Where two female threaded anchors (6) are inserted into the tube (1, 2) And capable of receiving an outer element (7) with a male thread and a ring, which can be threaded onto said anchor (6). A part of the safety points (3) are closer to the male end (4) than to the female end (5) and are circumferentially aligned and separated from each other by the same angular distance, and the remaining safety point (3) ') are closer to the female end (5) than to the male end (4). This ensures a safer handling of each type of tube (1, 2), both for vertical extraction, turning or assembly.

Description

tion of a tube integrated in the tube itself.

Safety system for handling pipes and vertical extraction procedures, turning and mounting with said system. Field of the Invention

The present invention relates to a safety system for handling pipes and vertical extraction, turning and assembly procedures that employ said system. The invention is especially applicable to concrete pipes used, for example, in sanitation and water conduction. Background of the invention

There are safe means of transport and lifting consisting of a female threaded base or anchor that is inserted into the workpiece and an outer element with a male thread and a ring or eyebolt, which can be threaded onto the base.

These systems are coupled to concrete pieces so that they can define safety points where the outer elements will be threaded, so that the ring will be exposed externally and arranged for the handling, transport or lifting of the concrete piece.

It is necessary, however, an optimal arrangement of said transport and lifting elements in reinforced concrete pipes, so that it adapts to them according to their length and, therefore, their weight, and that is suitable for different handling operations that can be performed with them, all in a safe way. Summary of the invention

The object of the present invention is to provide a safety system for handling tubes integrated in the tube that solves the problem described above.

The invention provides a safety system for pipe handling, applicable to reinforced concrete pipes up to 3 m in length, with safety points where two female threaded anchors are inserted in the tube and capable of receiving an external element with a male thread and a ring, which can be threaded on said anchor, and comprising four safety points, three of which are closer to the male end than the female end and are circumferentially aligned and separated from each other the same angular distance, and the remainder is closer to the female end than to the male end.

The invention also provides a safety system for handling pipes, applicable to reinforced concrete pipes of a length greater than 3 m, with safety points where two female threaded anchors are inserted in the tube and capable of receiving an element exterior with a male thread and a ring, which can be threaded on said anchor, and comprising six safety points, four of which are closer to the male end than the female end and are circumferentially aligned and separated from each other the same distance angular, and the remaining two are diametrically opposite and closer to the female end than to the male end.

Through these configurations, a safer handling of each type of tube is achieved, both for vertical extraction, turning or assembly.

Another advantage of the invention is that by means of it

Another advantage of the invention is the versatility of the tube for the different handling operations optimizing its number of safety points for each case.

Other advantageous embodiments of the invention are set forth in the dependent claims. Brief description of the drawings

The object of the present invention will be illustrated in a non-limiting manner, with reference to the accompanying drawings, in which:

Figure 1 shows a diagram of a threaded transport and lifting system of the prior art.

Figure 2 shows a side view of a tube with the arrangement of the handling system of the invention.

Figure 3 shows a view from one end of the tube of Figure 2.

Figure 4 shows a side view of another tube with the arrangement of the manipulation system of the invention.

Figure 5 shows a view from one end of the tube of Figure 4.

Figure 6 shows the vertical extraction phase of a tube of Figure 2 with the arrangement of the handling system of the invention.

Figure 7 shows the vertical extraction phase of a tube of Figure 4 with the arrangement of the handling system of the invention.

Figure 8 shows the phase of turning a tube of Figure 2 with the arrangement of the handling system of the invention.

Figure 9 shows the phase of turning a tube of Figure 4 with the arrangement of the handling system of the invention.

Figure 10 shows the assembly phase of a tube of Figure 2 with the arrangement of the handling system of the invention.

Figure 11 shows the assembly phase of a tube of Figure 4 with the arrangement of the handling system of the invention.

Figure 12 shows the arrangement of the threaded anchor within the concrete pipe.

Figure 13 is a front view of the threaded anchor arrangement of Figure 12. Detailed description of the invention

Figure 1 represents a means for safe transportation and lifting of those employed in the prior art, consisting of a female threaded base or anchor 6 that is inserted into the piece to be transported or lifted and an outer element 7 with a male thread and a ring or eyebolt, which can be threaded on the base 6.

In Figure 1 it is observed that the base 6 is coupled and embedded in a piece, and that the outer element 7, threaded on the base 6, has a ring from which a hook is pulled, for later manipulation (for example, by a crane).

In Figures 2 and 3 a tube 1 of up to 3 m in length is represented with a safety system for handling according to the invention. Tube 1 has a male end 4 and a female end 5.

The different safety points 3, 3 'are inserted and distributed by the tube 1 in order to facilitate its handling, and consist of female threaded anchors 6, which can receive an external threaded element 7 with a male thread and a ring.

We observe in figures 2 and 3 that in this realization

3 EN 2378046A1 4

There are three safety points 3 closer to the male end 4 than to the female end 5. These safety points 3 are circumferentially aligned and separated from each other by the same angular distance.

Also in these figures we observe a safety point 3 'closer to the female end 5 than to the male end 4. This safety point 3' will preferably be located on a generatrix of the equidistant tube 1 with respect to two of the safety points 3 closer to the male end 4 than the female end 5, which is best seen in Figure 3.

The distance of safety points 3, 3 ’to their nearest end may be, for example, one quarter of the total length of tube 1.

In Figures 4 and 5 a tube 2 of a length greater than 3 m is shown with a safety system for handling according to the invention. The tube 2 has a male end 4 and a female end 5.

The different safety points 3, 3 'are inserted and distributed by the tube 2 in order to facilitate their handling, and consist, as in the previous configuration, in female threaded anchors 6, which can receive an external threaded element 7 with a male thread and a ring.

We observe in Figures 4 and 5 that in this embodiment there are four safety points 3 closer to the male end 4 than to the female end 5. These safety points 3 are aligned circumferentially and separated from each other the same angular distance.

Also in these figures we observe two safety points 3 ’closer to the female end 5 than to the male end 4. These two security points 3’ are diametrically opposite. At the same time, they can be aligned on the same generatrix with the corresponding safety points 3 that are closest to the male end 4, which is best seen in Figure 4.

The distance of safety points 3, 3 ’to their nearest end may be, for example, one quarter of the total length of tube 1, 2.

The different ways of handling the tubes 1, 2 are shown in Figures 6 to 11.

Figure 6 shows the vertical extraction of a tube 1 up to 3 m long; This operation can take place in the withdrawal of a tube 1 after its manufacture (using, for example, the installation and method of the Spanish patent 2260996 of the applicant).

To make the vertical extraction of the tube 1 up to 3 m long, the ties are made at the three safety points 3 that are closer to the male end 4 than to the female end 5.

Figure 7 shows the vertical extraction of a tube 2 more than 3 m long. To make the vertical extraction of this tube 2, the ties are made at the four safety points 3 that are closer to the male end 4 than to the female end 5.

Figure 8 shows the turning operation for a tube 1 up to 3 m long. To make the turn, the moorings are made in two of the safety points 3 that are closer to the male end 4 than to the female end 5.

Figure 9 shows the turning operation for a tube 2 more than 3 m long. To make the turn, the moorings are made in two of the safety points 3 adjacent to each other that are closer to the male end 4 than to the female end 5.

Figure 10 shows the handling operation in assembly for a tube 1 of up to 3 m in length. To carry out said manipulation, the moorings are made in two of the safety points 3 that are closer to the male end 4 than to the female end 5 and the safety point 3 'that is closer to the female end 5 than to the male end 4 and on a generatrix of the equidistant tube 1 with respect to the two safety points 3 closer to the male end 4 than to the female end 5 (total: 3 mooring points).

Figure 11 shows the handling operation in assembly for a tube 2 of more than 3 m in length. To carry out such manipulation, the moorings are made in two of the diametrically opposite safety points 3 that are closer to the male end 4 than to the female end 5 and at the two safety points 3 'that are closer to the female end 5 than to the male end 4 (total: 4 mooring points). Each security point 3 closer to the male end 4 than to the female end 5 is longitudinally aligned with the corresponding security point 3 'closer to the female end 5 than to the male end 4. In this figure 11 it is observed that the manipulation of the Tube 2 with ties will be to the left, to be attached to the previous tube already placed.

Therefore, the con fi guration of safety points 3, 3 ’for each type of tube (four for tubes 1 of up to 3 m and six for tubes 2 of more than 3 m) makes it possible to carry out their different handling operations.

Figures 12 and 13 show the arrangement of a threaded anchor 6 inside the concrete pipe. We note that the female threaded anchor 6 inserted in the tube is secured internally by reinforcements 8 welded to the outer reinforcement 9 of the reinforced concrete pipe.

Although embodiments of the invention have been described and represented, it is evident that modifications within its scope can be introduced therein, which should not be considered limited to said embodiments, but only to the content of the following claims.

5 EN 2378046A1 6

Claims (15)

one.

Safety system for pipe handling, applicable to reinforced concrete pipes (1) up to 3 m long, with safety points (3, 3 ') on which two female threaded anchors (6) are inserted into the tube (1) and capable of receiving an outer element (7) with a male thread and a ring, which can be threaded on said anchor (6), characterized in that it comprises four safety points (3, 3 '), three of which ( 3) they are closer to the male end (4) than to the female end (5) and are circumferentially aligned and separated from each other the same angular distance, and the remaining (3 ') is closer to the female end (5) than to the male end (4).

2.

Safety system for handling tubes according to claim 1, characterized in that the safety point (3 ') closest to the female end (5) that the male end (4) is on a generatrix of the tube (1) equidistant with with respect to two of the safety points (3) closer to the male end (4) than to the female end (5).

3.

Safety system for handling tubes, according to any of the preceding claims, characterized in that the distance of the safety points (3, 3 ’) to their nearest end is one quarter of the total length of the tube (1).

Four.

Safety system for handling tubes, according to any one of the preceding claims, characterized in that the female threaded anchors (6) inserted in the tube (1) are held internally by reinforcements (8) welded to the outer reinforcement (9) of the reinforced concrete pipe (1).

5.

Safety system for pipe handling, applicable to reinforced concrete pipes (2) of a length greater than 3 m, with safety points (3, 3 ') on which two female threaded anchors (6) are inserted in the tube (2) and capable of receiving an outer element (7) with a male thread and a ring, which can be threaded on said anchor (6), characterized in that it comprises six safety points (3, 3 '), four of which (3) are closer to the male end (4) than to the female end (5) and are circumferentially aligned and separated from each other by the same angular distance, and the remaining two (3 ') are diametrically opposite and closer to the end female (5) than the male end (4).

6.

Safety system for handling tubes according to claim 5, characterized in that the safety points (3 ') closer to the female end (5) than to the male end (4) are on the same generatrices of the tube (2) as two of the safety points (3) closer to the male end (4) than to the female end (5).

7. Safety system for handling tubes according to claim 5 or 6, characterized in that the distance of the safety points (3, 3 ') to their nearest end is one quarter of the total length of the tube (2 ).

8.

Safety system for handling tubes, according to any of claims 5,6 or 7, characterized in that the female threaded anchors (6) inserted in the tube (2) are held internally by reinforcements (8) welded to the outer reinforcement ( 9) of the reinforced concrete pipe (2).

9.

Procedure for extracting a tube (1) of the configuration of claim 1, 2,3 or 4, characterized in that the moorings are made at the three safety points (3) that are closer to the male end (4) than to the end female (5).

10.

Turning procedure of a tube (1) of the configuration of claim 1, 2, 3 or 4, characterized in that the moorings are made at two of the safety points (3) that are closest to the male end (4) than to the female end (5).

eleven.

Handling procedure for mounting a tube (1) of the configuration of claim 1, 2, 3 or 4, characterized in that the moorings are made at two of the safety points (3) that are closest to the male end ( 4) that at the female end (5) and at the safety point (3 ') which is closer to the female end (5) than to the male end (4) and on a generatrix of the tube (1) equidistant with respect to the two safety points (3) closer to the male end (4) than to the female end (5).

12.

Procedure for removing a tube (2) from the configuration of claim 5, 6, 7 or 8, characterized in that the moorings are made at the four safety points (3) that are closest to the male end (4) that to the female end (5).

13.

Turning procedure of a tube (2) of the configuration of claim 5, 6, 7 or 8, characterized in that the moorings are made in two of the safety points (3) adjacent to each other that are closer to the male end (4) than to the female end (5).

14.

Handling procedure for mounting a tube (2) of the configuration of claim 5, 6, 7 or 8, characterized in that the moorings are made at two of the diametrically opposite safety points (3) that are closest to the end male (4) than at the female end (5) and at the two safety points (3 ') that are closer to the female end (5) than to the male end (4), each safety point (3) being more close to the male end (4) than to the female end

(5) aligned longitudinally with the corresponding safety point (3 ’) closer to the female end (5) than to the male end (4). SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 200900553 SPAIN Date of submission of the application: 27.02.2009 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: See Additional Sheet RELEVANT DOCUMENTS

Category

56 Documents cited Claims Affected

X

WO 2008136761 A1 (BILCON IND PTE LTD et al.) 13.11.2008, page 8, lines 30-35. 1-3.5-7.9-14

Y

4.8

Y

FR 2578947 A1 (PACCHIAROTTI LOUIS) 19.09.1986, figure 1. 4.8

TO

US 3195738 A (LAERKFELDT OVE CARL GUNNAR et al.) 20.07.1965, the entire document. 1-14

TO

EP 0052591 A1 (MALMEN OLLE et al.) 26.05.1982, the whole document. 9-14

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 22.03.2012

Examiner A. Pérez Igualador Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 200900553 CLASSIFICATION OBJECT OF THE APPLICATION F16L9 / 08 (2006.01) F16L1 / 06 (2006.01) F16L1 / 036 (2006.01) Minimum documentation sought (classification system followed by classification symbols) F16L Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENTIONS, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 200900553 Date of Written Opinion: 22.03.2012 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims 1-14 IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims 1-14 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 200900553 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

WO 2008136761 A1 (BILCON IND PTE LTD et al.) 13.11.2008

D02

FR 2578947 A1 (PACCHIAROTTI LOUIS) 19.09.1986

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement Document D01 refers to segments of reinforced concrete pipe. Each tube segment (shown in Figure 1) has four anchor points provided for lifting and handling in a controlled manner. On pages 8 and 9 it is read that the anchor points have been placed according to a geometry according to the distribution of the weight of the segment. In particular, two to two are arranged on generating paths on opposite sides of the tube. The procedure for manipulating the segments according to D01 (described on page 9) consists of hooking four cables of equal length over the anchor points and the opposite ends are taken to a central point of the lifting apparatus. In this way the segment is suspended preserving the horizontal position. The first three claims relate to a tube handling system characterized by having four anchor points distributed in the tube segment in a certain way. Similarly, claims 5, 6 and 7 refer to six anchor points distributed in a certain other way. This particular geometric distribution of anchor points is not found in document D01. However, it is considered to be one of several obvious possibilities that an expert in the field would select according to the circumstances, without the exercise of inventive activity for the following reasons: - it is common knowledge that the position of the points where the forces are applied with which a solid body is going to move influences (determines) the orientation in the space that the body will finally have. -It is common both in specialized technique and in ordinary life to choose points symmetrically for better control of solid body movement. -the document D01, on line 31 on page 8 says that the points are placed "strategically based on the weight distribution" -not surprisingly beneficial (in principle, nor indicated in the description) distribution of claimed anchor points, since, in principle it is equivalent to any other that takes into account the shape and weight distribution in the tube segment. Therefore, the invention as claimed in claims 1, 2, 3 and 5, 6 and 7 is not considered to involve inventive activity. Document D02 describes another reinforced concrete pipe provided with anchor points for handling it that are connected with the steel reinforcing bars of the concrete. It would be obvious to the person skilled in the art to apply this feature (connect the anchor point with the reinforcing steel of the concrete) to the tube disclosed in D01. Therefore, claims 4 and 8 lack inventive activity. The extraction, turning and handling process claimed in claims 9 to 14 is limited to indicating which anchor points are used depending on the type of movement that is and the distribution of four (claims 9 to 11) or six points ( 12 to 14). Similar considerations are made here to those made about the system: these are common knowledge possibilities. In conclusion, the claims of the application (1st to 14th) do not meet the requirement of inventive activity (Art. 4 and 8 of Patent Law 11/1986). State of the Art Report Page 4/4