WO2010131065A1

WO2010131065A1 - Very tall, vertical extendable/retractable structure

Info

Publication number: WO2010131065A1
Application number: PCT/IB2009/005803
Authority: WO
Inventors: Alfredo Medina Ramirez
Original assignee: Alfredo Medina Ramirez
Priority date: 2009-05-11
Filing date: 2009-05-11
Publication date: 2010-11-18

Abstract

The invention relates to a very tall, vertical extendable/retractable structure formed by successive longitudinal parts that can be retracted with each part being nested inside the preceding part, so as to control the length thereof and facilitate transport, such that the plurality of bodies (11) can be coupled to one another telescopically. The bottom end of the structure is coupled to a shaped base (16) which allows the metal structure to move in accordance with the extension of the parts and the angle formed with the horizontal, and said structure is connected to a transport platform (12) which serves as a base. The structure also includes hydraulic elements (25) along the central axis thereof and a plurality of guys (27).

Description

VERTICAL STRUCTURE OF GREAT EXTENSIBLE AND REMOVABLE HEIGHT

FIELD OF THE INVENTION

The object of the invention is a metal structure generally located at 90 ° from its horizontal support which, when it reaches its maximum extent, allows the coupling of antennas or other devices at its upper end. The structure has a metal structure body that nests a plurality of extensible and retractable bodies associated by mechanical means to a profiled base device and a platform that allow its folding and, consequently, its transport in geographical areas of difficult access.

BACKGROUND OF THE INVENTION

The wide development in telecommunications has generated the need to design structures of great extension that facilitate the transmission of waves and that avoid the congestion of the electromagnetic space. In recent years, a significant number of metal construction structures formed by telescopic parts have been developed, however, these structures present difficulties in their construction, especially when the characteristics of the terrain and geographical areas make access difficult and therefore their coupling and operation.

Most of the systems presented in the state of the art require expensive construction systems that do not guarantee satisfactory operation. For example, the system presented by patent ES1018265 corresponds to an improvement on telescopic turrets that incorporate a lower section, two intermediate sections and an upper section, each preferably formed by parallel uprights of tubes, interconnected by means of braces that define a progressive decrease of section, in order to be able to introduce each of them in the immediate bottom.

The document indicates that the lower section of the turret has, on one of its sides, a drum mounted with possibilities of rotation that is driven by a handle or by means of a reduction motor. The drum has a staggered outer surface on which three cables that allow displacement are fixed. This arrangement of the cables allows each of them to act on the corresponding section of the telescopic tower by actuating the drum causing simultaneous displacement of the sections, making simultaneous traction of each and every one of the sections due to the difference in drum portion diameters. However, the design disclosed by the patent is not supported on a platform and does not have a profiled base device, which makes transport, mobility and construction difficult. Additionally, the lifting system of each of the sections is external to the scaffolding of the metal structure and is based on a structurally different design because it uses a drum that drives three cables, which allow the elevation of each of the sections of the tower . On the other hand, the coupling to the antenna is carried out by means of a cage and a mast that extends at the furthest end of the tower structure.

Other telescopic tower systems are disclosed in the ES2035335 patent that presents a tower associated with a trailer and is accompanied by a self-supporting mast supported on the trailer that guarantees the elevation of the tower sections. The trailer revealed by the publication is provided with two pivoted mounted arms in the chassis that guarantees its support to the ground. The braces that are fixed between some telescopic elements and automatic coils are removably mounted on the chassis and arms, a situation that makes it difficult to extend and retract.

In addition, this system has three supports, two lifting elements: a tilting jack and a lifting jack and three tie-up elements that give stability to the structure. And although it is assured that in a relatively short time a greater magnitude is achieved in the extension of the tower, said assembly has the disadvantage that although it is movable it cannot reach hard to reach areas since the tower is not telescopic and this It makes assembly and transport difficult.

EP0370314 shows a mobile antenna assembly with an associated telescopic mast, arranged on a base or trailer that has rear and front extension arms. It also has a pulley that extends to the tower, around which there are two tension cables guided to the mast head, each inner and outer section and each rear and front arm are supported and joined in two stabilizer bars that are actuated by hydraulic cylinders. Thus, the difference of this system with the new invented system is that the invented telescopic system allows the erection and retraction without the need for the cables to control the elongation of the tower from the far end because the model's temple system only reaches up to The half of the metal structure and on the other hand, the control in the extension and retraction of the tower is carried out by means of hydraulic mechanisms and pulleys arranged in each section or section of telescopic coupling, which avoids the use of stabilizer bars and a pulley and tensioning cables guided to the mast head. In patent publication US4932176 a system composed of a mast stored in a horizontal and retracted position is presented, supported on a block that acts as a pillow and is secured by a device that has a chair-clamp effect on a vehicle.

The mast system of the publication comprises a concentric series of inner tubes that are assembled telescopically, axially movable. The tube that serves as the outer base is axially fixed and placed in a position that supports the embedded sections. The mast carrier system is placed horizontally through a hydraulic impeller and each of the sections of the tubes has a uniform shape and a constant transverse dimension.

However, this system differs from the new invented model because it is raised to its vertical position by means of tubes that extend and retract by a winch and because it uses an electric motor connected to a speed reducer and given the difficulty of its assembly does not allow the tower reaches a greater magnitude in its extension.

In the state of the art, telescopic extensible towers are presented, such as those of the US510121S patent, which have a plurality of hollow equilateral triangular tubular sections, whose areas are decreasing successively, one embedded within the other in a parallel longitudinal coaxial relationship.

The model presented by the patent is accompanied by a cable for raising and lowering the successive sections and pulley means, which are arranged in the tubular sections comprising inclined pulley wheels that are alternately arranged and which are capable of carrying a cable of an external upward direction along the inner part of the section down and inside the flat pulley wheels mounted near the bottom of the next inner section, and winch means arranged near the bottom of the lower outer tubular section and connected with the cable that is hooked longitudinally on the inclined and flat wheels of said pulley means, which allow to raise and lower the tubular sections by the cable in order to gently erect and lower the tower.

However, said antenna tower structure is not accompanied by a support or trailer means and has a cable for raising and lowering that is arranged to the farthest end of the tower, while the invented metal structure only presents the temple system up to half of the height of the model without therefore presenting disadvantages in its stability and the pulley systems in each section of the tower are internal. On the other hand, the construction of the invented metal structure can carry up to 8 extendable sections of 6 meters each, without thereby losing characteristics such as stiffness and stability, a situation that does occur in the triangular and tubular profiles presented by US4932176 patents and US5101215.

Other patent publications such as US2003146310 and US2008180349 have mobile towers for cellular telephony that have a self-propelled base for a truck type vehicle that has an extended cab and a structure connected to said base that allows operating equipment to be stored. The vehicle has a rear platform and the tower includes a plurality of telescopically extensible segments and a base segment which, when nested, can move to a rest or inactivity position being horizontally and parallel to the rear platform. In the platform there is a hydraulically or electrically operated arm, said arm raises the tower from rest position to a vertical position that is the operating position and is perpendicular to the rear platform. When the tower is in an upright position, the pivot point or lifting arm is located above the rear double wheels of the vehicle or truck. The rear platform must be as level as possible before starting the vertical lifting operation of the tower, for this purpose a plurality of external triggers are arranged which are located around the base of the tower.

However, this design does not include pivoting hydraulic cylinders on the outer base of the metal structure and does not combine the metal configuration of the tower with a lifting mechanism or jack arranged on its central axis and force transmission means located in each coupling section telescopic, together with guides or drag cables that move on the means of force transmission for lifting the sections of the telescopic structure.

The model presented by US2008180349 patent teaches in particular a single post tower system that is also accompanied by a platform or trailer, a structural frame of the platform, a single post antenna support, a hydraulic cylinder which is capable of pivoting with respect to the structural dizziness of the platform and capable of moving horizontally to raise the tower of a single pole. It has three sections of the tower which are inside one another or in a nested form, in such a way that the second structure fits inside the first and the third structure fits inside the second. The base of the tower is attached to the lower part of the first structure of the tower and said base has a plurality of bolts arranged to secure the single post tower in a vertical position. There are two supports Additional mounted on the first structure of the tower allow to give greater stability to the post, retain it or rotate the antenna with respect to the support.

Consequently, the difference with document US2008180349 is that this model does not include rollers placed inside the base to ensure the lifting or folding rotation imparted by the hydraulic cylinders on the profiled base of the metal structure, which hinders the movements of pivoting angle, one of the main features of the invented model. These rollers also intervene in the extension and retraction movement of the telescopic structure complementing the lifting or folding rotation imparted by the cylinders, a situation that is taken advantageous in the invented model, since it guarantees the greater extension or retraction of the tower and the angle modulation.

OBJECTS HEAR THE INVENTION

B main object of the invention is an extensible and retractable vertical structure of modulated angle to couple antennas or other devices. In particular, the invention relates to a plurality of bodies that can be telescopically coupled and form an essential part of the metal construction structure, whose longitudinal and successive pieces can be collected by fitting each one in the previous one, said parts are coupled to a platform already a profiled base device that serves as the basis for the vertical structure.

BRIEF DESCRIPTION OF THE FIGURES

Figure 1 shows a perspective of the vertical structure of the present invention with the base body of metal structure in a retracted position and an angle of 90 "with respect to the platform.

Figure 2 shows a cross-section of the vertical structure of the present invention with the base body of the metal structure in a retracted position and an angle of 90 ° with respect to the platform.

Figure 3 presents a perspective of the vertical structure of the present invention retracted in a horizontal position coupled to the platform for transport and mobilization.

Figure 4 shows a perspective of the base body of the metal structure of the vertical structure of the present invention. Figure 5 presents a perspective of the vertical structure of the present invention fully extended in an upright position with the coupled temples.

Figure 6 presents in detail a perspective of the profiled base device disposed between the base of the metal structure body and the platform of the vertical structure of the present invention.

Figure 7 shows a diagram of the arrangement of the force transmission elements in a lifting operation of the telescopic coupling bodies of the vertical structure of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

With reference to the figures, some aspects of the extensible and retractable vertical structure of the present invention will be described in detail. The extensible and retractable high-rise vertical structure comprises'.

a) A base body of metal structure (10). b) A plurality of bodies which can be telescopically coupled (11). c) A profiled base device (16). d) A platform (12) that serves as the basis for said vertical structure. e) A plurality of force transmission elements. f) A hydraulic lifting element (25) placed on the axis of said structure and g) A plurality of tempers (27)

In figures 1, 2, 3 and 5, the vertical structure of the present invention is illustrated, retracted in a vertical position (90 ° with respect to the horizontal), retracted in a horizontal position (0 ° with respect to the horizontal) and fully extended in a vertical position

(90 ° with respect to the horizontal), respectively, showing the base body of metal structure (10) - figure 4 -, which has a plurality of uprights

(21) in angular structural periphery and a plurality of profiles (22) in channel forming a lattice in the lateral contours of the base body of metallic structure, which is preferably constructed in formed profiles. The metal frame base body (10) nests a plurality of telescopically acceptable bodies (11) disposed of a plurality of uprights (21) in angular structural periphery and a plurality of channel profiles (22) forming a lattice in the lateral contours of the bodies. These telescopically attachable bodies (11) are preferably constructed in formed profiles and have a bearing surface (23) based on a reinforced plate in bronze that allows the displacement and telescopic coupling between the multiple bodies.

The platform (12) that serves as the basis for the vertical structure has a plurality of ground anchor shoes (14), which are laterally extensible in order to provide greater stability to the vertical structure and a plurality of wheels (13) located at the ends of the platform in such a way that it can be converted into a trailer type structure preferably of the low bed type.

Once the vertical structure is in a state of maximum extension, a plurality of tempers (27), are arranged at the upper end of each section (11) and are coupled at a distance of between 3 and 5 meters on each side of the axis, to ensure the structure to the surface and provide the required stability. The vertical structure of the present invention constructed in formed profiles presents a structure of high rigidity and stability, which allows to install up to 10 telescopic coupling bodies (11) between 5 and 10 meters in length of each of these, generating a structure of high extensible and retractable height with structural advantages and resistance to loads of up to 1.5 Ton as a support for antennas or other devices.

Figure 6 shows the profiled base device (16) arranged in the base of the metal structure body (10) and in the platform (12). In this profiled base device (16) a metallic connecting element (18) is provided which provides stability to said vertical structure, a plurality of hydraulic pi cylinders (15) whose function is to place said vertical structure in a horizontal position for transport or in vertical position for operation and a plurality of rotating devices (20) that complement the lifting or folding action of said hydraulic pivot cylinders (15). These hydraulic pivot cylinders (15) are arranged on a plurality of supports (19).

Figure 7 shows the arrangement of the force transmission elements in a lifting operation of the telescopically coupled bodies (11). The force transmission elements are composed of pulley mechanisms (24) which are arranged in the upper portion of the base body of metal structure (10) and in the upper portion of the telescopically coupled bodies (11) and a plurality of cables (26) of drag arranged in the pulley mechanisms (24) and driven by a hydraulic lifting element (25) placed on the axis of the structure that allows the extension of the vertical structure.

Claims

REVIEWS

1. An extensible and retractable high-rise vertical structure characterized in that it comprises:

a) A base body of metal structure (10). b) A plurality of bodies which can be telescopically coupled (11). c) A profiled base device (16). d) A platform (12) that serves as the basis for said vertical structure. e) A plurality of force transmission elements. f) A hydraulic lifting element (25) placed on the axis of said structure. g) A plurality of tempers (27)

2. The extensible and retractable high-rise vertical structure of claim 1, characterized in that in said base body of metal structure (10) there is a plurality of uprights (21) in angular structural periphery.

3. The extensible and retractable high-rise vertical structure of claims 1 and 2, characterized in that in said base body of metal structure (10) there are a plurality of profiles (22) in channel forming a lattice in the lateral contours of said base body of metal structure.

4. The extensible and retractable high-rise vertical structure of the claims

1 to 3, characterized in that said base body of metallic structure (10) is constructed in formed profiles.

5. The extensible and retractable high-rise vertical structure of claims 1 to 4, characterized in that in said base body of metal structure (10) a plurality of bodies can be nested which are telescopically attachable (11).

6. The extensible and retractable high-rise vertical structure of claim 1, characterized in that said plurality of bodies (11), which can be telescopically coupled, has a plurality of uprights (21) in angular structural periphery.

7. The extensible and retractable high-rise vertical structure of claims 1 and 6, characterized in that in said plurality of bodies (11), which are can be telescopically coupled, a plurality of profiles (22) are available in the channel forming a lattice in the lateral contours of said plurality of bodies.

S 8. The extensible and retractable high-rise vertical structure of the claims

1, 6 and 7, characterized in that in said plurality of bodies (11), a bearing surface (23) is provided based on a bronze reinforced plate to allow telescopic displacement and coupling between said plurality of bodies. 0

9. The extendable and retractable high-rise vertical structure of claims 1, 6, 7 and 8, characterized in that said plurality of bodies (11), which can be telescopically coupled, are constructed in formed profiles. S

10. The extensible and retractable high-rise vertical structure of claim 1, characterized in that said profiled base device (16) is disposed on the base of said metal structure base body (10) and on the platform (12) that it serves as the basis for said vertical structure. 0

11. The extensible and retractable high-rise vertical structure of claim 1 and

10, characterized in that in said profiled base device (16), a metallic connecting element (18) is provided which provides greater stability to said vertical structure; a plurality of pivoting hydraulic cylinders (15), whose function is to place said vertical structure in a horizontal position for transport or in a vertical position for operation, said pivoting hydraulic cylinders (15) are arranged on a plurality of supports (19); and a plurality of rotating devices (20) that complement the lifting or folding action of said pivoting hydraulic cylinders (15). 0

12. The vertical structure of high extensible and retractable height of claim 1, characterized in that said platform (12) serving as a base for said vertical structure provides a plurality of ground anchor shoes (14) which are laterally extensible in order to provide greater stability to said vertical structure; and a plurality of wheels (13) located5 at one end of said platform such that it can be converted into a trailer type structure.

13.The extensible and retractable high-rise vertical structure of the claims

1 and 12, characterized in that said platform (12) is of the low bed. 0

14.The vertical structure of great extensible and retractable height of the claim ^ 1, characterized in that said plurality of force transmission elements are composed of pulley mechanisms (24) which are arranged in the upper portion of said base body of metallic structure (10) and in the upper portion S of said plurality of bodies (11); they are also composed of a plurality of drag cables (26) which are arranged in said pulley mechanisms and are actuated by said hydraulic lifting element (25) to realize the extension of said vertical structure. 0 15. The extendable and retractable high-rise vertical structure of claim 1, characterized in that said plurality of temples (27) are arranged at the upper end of each section (11) and are coupled at a distance of between 3 and 5 meters on each side of the axis, once the vertical structure is in its state of maximum extension. 5