HUE027003T2 - Method for removing the external formwork of round container formworks - Google Patents

Abstract

A device (1) for removing the outer formwork of circular container formworks comprises a motor-driven scissors (3), which has two legs (7), which can be fixed to the edges (41) of adjacent Ausschaltafeln (31). By operating the drive (19) for opening and closing the scissors (3) in the sense of biasing the Ausschaltafeln (31) toward each other, the connecting means (51) of the Ausschaltafeln (31), which together with these adjoining edges (41 ) relieve, so that they can be opened safely and without difficulty. After this has been done, the scissors (3) are reopened by remote control by splaying the legs (7) of the scissors (3), and the ring of formwork panels can be moved by means of a hoist (45) on the outside of the ring Panels is hung, lowered.

Description

PROCEDURE Κ0ΚΤΑΕΤΑΙ.ΰ-33Μ1ΪΚΑΚ0Κ EXTERNAL FOOTWEAR. DISCLOSURE The subject of the present invention is the walking of an independent claim 1. Formwork for producing round tanks is known in various embodiments. As an example, reference is made to circular container formwork known from AT 322 131 B or AT 341 186 B.

Known circular formwork formwork has, if necessary, a curved panel formwork (shutter-plate) which is provided by the inner formwork or the formwork. they are ringed together to form the outer formwork. Binding Tabs Bounded with their Vertical Edges The wires are joined in the usual manner by the wedges, which are inserted into the openings of overlapping straps protruding at the adjacent edges of the shutters (the knife, AT 322 191 A). 2 210 131 An apparatus suitable for joining framed panels is provided, which is provided with two arms, the ends of which can be connected to the frames of the sheets to be joined to each other.The other end of the arms K is provided with a tensioning device. By operating the tension stone tool, the arms are turned so that their ends connected to the sheets bind together and at the same time a crossbeam is clamped to the frame and the attachments are connected to each other. It doesn't.

Otherwise, GB 2 210 131 A discloses all the features of the scope of claim 1. GB 2 210 131 A does not contain any reference to the fact that the apparatus described therein can be used to precede adjacent sheets when the additional devices connecting the sheets are to be released.

Further equipment for joining shackles is known from EP 1 B70 536 'A, Prospekt RÖM2A Rund schalung, EP 1 653 025 A, and Doc. After the tank is made, which is filled with concrete, the formwork (internal formwork and external formwork) must be removed. This. It is not a harmless task for the outer formwork, but the slope in the outer formwork in the form of slats often leads to a sharp opening of the outer formwork, which poses a not insignificant danger to the person who has to take off the outer formwork. When removing the outer formwork, it is usually done by removing the rings of the shutter-boards forming the outer formwork from the bottom upwards, while the upward-facing rings on the shoe boards are lowered along the container (generally the lift is carried out by means of a lifting device). to work out a procedure whereby the operator can safely break the outer formwork.

According to the invention, this task is further solved by a method having the features of claim 1. Etett a distinctive and advantageous embodiment of the invention is the subject of claim.

Because a. according to the invention, prior to releasing the connection between the shutters, the adjacent and interconnected shutter plates with which a. the opening of the outer formwork, biasing towards each other, connecting means, such as wedges, tensioning screws, or the like, can be resolved without the danger of sudden release of the tension in the ring of exterior shutters. When the tension in the annular outer formwork by sliding the prestressing device is gradually removed, the slab of slabs may slide downwardly along the circumferential tank, and eventually a detachable case of loosening and removal of the shutter plates from one another.

Preferably a. According to the present invention, the two adjacent shutter plates which are to be first contacted are pre-tensioned using a pre-tensioning device in the form of a cloth or fork. The free ends of the branches of the scissors (fork or fork) are fixed on the shutter-plates, and the free ends of the branches are moved towards each other to bias the shutter-plates toward each other.

For example, the use of a scissor shank to drive scissor shafts is by hand or motor driven screwdriver. For shears, other shafts, such as compressed air or hydraulic drives containing pneumatic or hydraulic working joints, may also be considered.

Preferably, the free ends of the scissors are stitched to the shutter-plates by means of pins on which the straps with apertures for the studs are fastened. The use is further simplified when the scissor-mounted device is provided with a fixing point for a lifting device * so that the device with a crane or the like is attached. it can be raised to the required height, and can be placed on the soluble billboards.

Further simplification and enhanced security are achieved when the operation of scissors (wired, infrared, radio or .has on 1 ö) is controlled by remote control.

Further advantages and parts of Isit are provided by the following description of a preferred embodiment of an apparatus for carrying out the method of the invention. The figures are as follows: Fig. 1 (not part of the claimed invention) is an exterior formwork ladder and a bucket attachment for the production of a circular container, shown only partially. Fig. 2 is a skimming device in oblique view, Fig. 3 is a skimming device of Fig. 2, shown in Fig. 4, a few zsal.utcs.bla, Fig. 5 (not part of the claimed invention) Fig. 6 (not part of the claimed invention) with the support frame provided with the support according to Fig. 6, the ladder of Fig. 6 is illustrated in FIG. Fig. 3 illustrates the use of the device according to Fig. 3, and Fig. 9 (not included in the invention) is a detail of Fig. 8 ' "or" fork "} and 5 basic bodies with the shears of the shears 3. The embodiment of the shears 3 and 2 shown in Figures 2 and 3 comprises two branches 7, 11, 11, at the free ends of the branches. , in sections 9, 11 of the 7 branches 15, the holes 7 of the scissors 3, opposite the free end, are hingedly connected to each other by a shaft 17, the branch of the scissors 3 on the right side of the device 3 in the base body 5 of the apparatus 3. it is supported, while the other branch 7 can be pivoted to change the distance between the free ends of the branches 7 of the shears 3, with the holes 15 for the pins 13. To do this, the pivoting branch 7 of the scissors 3 is connected to a Salt Drive 19 operated by an electric motor 21. For example, the adjusting drive 19 is a spindle whose spindle nut is rotated by a motor 21 through an actuator to open or close the scissors. The spindle is fixed to the shaft 7 by a hinge 23 on the outer shoulder 7 of the shears. For the operation of the scissors, at least a drive with pneumatic or hydraulic inunkahsn-gere can be used instead of the spindle-spindle.

The detachable handles 25 on the housing 25 shown in FIG. 8 are arranged for opening or closing the scissors. closing.

Otherwise, the shuttering device 1 is configured and equipped so that opening and closing the shears 3, i.e. the biasing of the ring consisting of the shutters 31 to be opened and removed in an outer formwork, can be carried out remotely by remote control, which is radio or For example, the remote control can be placed in the storage tank of the 1 formwork device. The free ends of the branches 7 of the shears 3 are fixed on the shutter plates 31 of the outer formwork of a round container formwork. as shown in Figure 4, couplings 33 are provided for the free vegs of branches 7 of scissors 1 of scissor device 1; 31, which have receptacle openings with receptacle openings, such as a 3J sleeve, for the {pinugnac6 pins} of the switching pins 1.3 of the dehumidifier 1.

In addition, on the shutters 31, carbon 43 is secured near adjacent edges 41, by means of which a ring of removable ring 31 of the outer formwork of the round tank formwork is coupled to a lifting device 45 (see FIG. 8).

In order to bind each of the 31 sockets to a ring container concreting with the other 31 pockets, the edges 41 of the shutter plates 31 are designed for Oman. These switches 51, known as straps 53, 55 and wedges 57 (cf. FIG. 322 131 B). In the illustrated embodiment, the switches 51 are pivotable pins 61, which are rotatably mounted on the shutter-plate 31, at the periphery 41 of the adjacent shutter plates 31. 63 are provided with openings and can be tightened by means of a tool 65.

For the safer installation of the dehumidifier 1, there are 71 ladders. are used as in FIGS. shown in Figures 5, 6 and 7. The ladder baskets 71 are fastened with downward taps 77 on the shutter plates 31, 73, respectively. 75 for semiconductor elements. To ensure safe access to the silo cover. respectively. the bridge rack or the leo passenger from the silo cover, or from the bridging stand, is formed by the ladder bucket 81 of Fig. 6 with the recesses 84 of Fig. 7, which can be mounted as shown in Fig. I. With the pins 83 formed on the lower veg of the lower part of the stack 81, the sockets (85) of the top ladder (85) are plugged and secured.

The l.-S. 1 to 3 are illustrated in FIG. work as follows: The construction of the external formwork is carried out in a known manner, especially as described, for example, in the instructions for the construction and use of the circular formwork. In any case, each of the rings on the outer shutter should be fitted with the i. Fig. 31, a pair of shutter plates 31, These are connected to the other shutter plates of the outer formwork by conventional wedge ties S3, 55, 57. The shutter plates 31 are connected by screw connections 51 with threaded studs 61 and nuts 63, nuts 63 are so tight. must be tightened. that the shutters 31 are tightly aligned with each other and follow the radius of the shapes relative to one another. Also, be careful. To ensure that all screw connections 51 are evenly pulled, the ladder 71 is folded, hooked to the left shutter plate 31 at the fastening points 73 provided thereon, and secured with pins against unintentional lifting. To get to the top of the tank, 111. a bracket 81 1 can be mounted on the top ladder 71 to mount a bridge rack. It is placed on the ladder 71 and secured with pins. The two side arms 83 to the brackets are secured to the ladder 81 and adjusted with the supports to cover the free space of the outer stand. Exclusion is as follows:

The outlet of the 1 out formwork is provided by the control cabinet: i s for power supply and remote control of the shuttering device 1. The transport box is set up in a place where power supply can be provided (380V, 16A),. the placement area is accessible by connecting cables (2x25m), and where the operator can leave the danger zone during shut-off and lowering operations,

The dehumidifying device 1 is suspended at the respective fixing point 2 and is lifted by a load lifting device from the shipment (not shown), 'then the power supply is provided (3x0uV-fhePE / l € A). The next step is to establish a connection between the control z-screen and the .1 dehumidifier using the supply and control cables (not shown). Meanwhile, care should be taken that the length of the lead cable is selected so that the formwork position can always be reached. without tensioning the cable.

At this time, the connections were already made, the 1 formwork device being moved by means of a load-lifting device to the tailpipes 31 to be opened. The dehumidifier 1 is guided from the ladder basket 8.1 to the shutters 31, and the bucket 31 is secured to the shutters 13 on the shuttering plate 1 by inserting them on the holes 15 of the branches 7 of the shears 3 and on the straps 35 on the shutters; holes. Meanwhile, it is. 1 is a rocking device located at the correct distance from the handpiece buttons 25 on the housing 25 of the stripping device. set up. The handle buttons for opening and closing the shears 3 on the housing 25 are not fixed. The treatment is done only with remote controls (without cable or cable) that the mechanic carries with when a. puts a dripping device on the shutter ring. The studs 13 are secured against accidental pulling.

When the shutter-off device 1 is connected to the shutter-plates 31, the branches 7 of the scissor device 1 of the shutter-off device 1 are pulled by the actuating drive 19 of the scaling device 1 until they are in a resting position (i.e., a sufficient preload is formed). At this point, the dehumidifier 1 can be disengaged from the load lifting device.

Then, a two-stranded hanging chain 45 (Fig. 3) is inserted into the two shutter plates 31 (welded fastening elements 43) and tensioned. Switches 51 between shutter plates 31 can now be unlocked and misplaced.

When all 51 (four) screws of the switches 51 are loosened and folded, all the persons leave the ladder 71 or the bucket. the. To lower the shut-off device 1 (before the scissors are cut out 3), make sure that no one is open. stay in the dangerous area. The opening of the 1-piece shuttering device is accomplished by spreading the scissors 3 by remote control, e.g. from the cabinet cabinet in the airlift

Then you start to lower the ring from the outside joints. The,. How much to open the 1 formwork before the ring is lowered depends on many factors, and the mechanic himself must estimate this, basically. During descent, it is possible to reset the offset device 1. Upon completion of the dehumidification, the dehumidifier 1 can be reused or returned to the delivery box.

Claims (2)

Claims A method for removing an outer formwork of circular tanks comprising shutters (31) having vertical edges. (41): interlocking and interconnecting means (51) such as wedges or tensioning bolts. connected to at least one ring in which the linkage is dissolved between two adjacent shutter plates (31), characterized in that before the linkage is dissolved two. between the adjacent shutter-plate (31), the connection of which is to be opened for the first time, the shutter-plates (31) are pre-biased by means of a device, dissolve the connecting means (51), eliminate the tension in the annular outer formwork, so from the shutter-plates. (31) the sliding ring may slide along the circumferential container and finally the ring of the shutter shapes (31). removing the strips (31) from one another and removing the method according to claim 2, characterized in that the apparatus for pre-cutting the two adjacent blades (31) which first to open, a scissor-like pre-tensioning device (3) secured to the free ends of the branches (7) on the jig boards (31), and then move the free ends of the branches (7) toward each other to close the shutters (31). tension it toward you.