RU2513515C2 - Method to level telescopic vertical pipe with knob or base - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to the method of levelling of telescopic vertical pipes used for installation of ceiling boarding, shoring or scaffolding. The method of levelling by means of a lever tool of a telescopic vertical pipe, which is under a weight and comprises a knob and/or a base on the end side, at least, one of its two free ends, besides, the knob and/or base by its support surface rests onto the coupled surface, and besides, on the edge of the knob and/or the base there are grooves, such that between the knob and/or the base at one side and the coupled surface at the other side they insert a lever tool with the following operations: a) end of the lever tool is entered into the groove between the knob and/or the base and the coupled surface, and b) the lever tool is moved, and as a result of this they move the vertical pipe along the coupled surface.

EFFECT: reduced consumption of materials and labour costs, higher durability, provision of vertical pipe movement along a coupled surface even on a very poorly sliding base.

2 cl, 4 dwg

Description

Technical field

The invention relates to a method for aligning a telescopic vertical pipe, which has an outer pipe and an inner pipe moved inside the outer pipe with a top and / or base on the end side.

Such telescopic vertical pipes are used to install the ceiling hemming, supporting scaffolding or scaffolds. Vertical pipes are also called building supports and are used, for example, for formwork, as pipes for scaffolding as part of the so-called modular scaffolding (spatial supporting structures) or as components of a vertical frame in frame structures for facades. Regardless of the purpose of the application, they must be height-adjustable; during the construction of frames, it is often necessary to adapt individual vertical pipes or the vertical frames formed by them to the shape of the base - for example, to an inclined floor or stair steps. When installing the ceiling, building supports must have a predetermined height. Therefore, telescopic vertical pipes have an outer pipe and an inner pipe, which, with the aim of changing the length or height, is moved along the length in the outer pipe with the possibility of fixation and is thus telescopic. This height setting can be performed by stepwise or steplessly moving the inner pipe, for example, using fingers inserted in through holes, or using a screw thread.

To increase the area of the support, such vertical pipes have a transverse plate or base on the end side, on one or both free ends. It serves to increase the bearing area so that less significant contact pressure is exerted on the mating surface, for example, on the floor, ceiling or wall. Without the base plate, the vertical pipe would be pressed into the ground under load or sediment under the load could occur.

Already installed telescopic construction supports or vertical pipes often have to be aligned in an upright position. This is done, for example, with the filing of the ceiling, if the construction supports are already under load, for example, from the side of the elements of the filing of the ceiling lying on them. It is difficult to move the construction supports under load, in particular where the base often has a rough surface, such as untreated concrete slabs with small pebbles and sand that increase friction. Alignment in a vertical position requires the use of large forces, as a rule, with the use of multiple directed blows with a hammer in an area close to the top or base of a vertical pipe. This leads to unwanted damage. Due to damage to the surfaces of the pipes, they corrode more quickly in this area, or a change in geometric parameters negatively affects the possibility of telescopic extension and / or bearing capacity. Therefore, it was proposed to equip the outer pipes of such supports with a shockproof device. It takes shock and prevents damage to the pipes. However, shock-proof devices require additional consumption of materials and labor for their manufacture, and because of their shock-absorbing action, they lead to the need for stronger shocks from the user.

Disclosure of invention

Therefore, the object of the present invention is to provide an improved method for aligning a telescopic vertical pipe with a top and / or base on the end faces.

This problem is solved by the method of aligning a telescopic vertical pipe with the features of paragraph 1 of the claims. Preferred embodiments of the invention are the subject of the dependent claims.

According to the invention, it is proposed to provide pommels or bases at the edge with recesses, so that a lever tool is inserted into them, between the pomp or base plate and the surface mating with it. By means of the lever tool, a gain is created that allows the vertical pipe to be moved along the mating surface even on a very poorly sliding base. In contrast to the shockproof device according to the prior art, the grooves on the edges are performed without additional consumption of raw materials and with insignificant labor costs in production, for example, by means of proven technological operations used in the manufacture and attachment of a pommel or base. With the help of the lever, the movement of the pipes can be carried out very strictly dosed, without loading the material and noise associated with hammer blows. The “notches on the edges” here does not mean that they can only be on the edge. Naturally, the notches can also extend inward. It is crucial that the edge provides at least the opportunity to find suitable points for applying the lever tool.

Here, a telescopic vertical pipe is understood to mean that it has an external pipe and an internal pipe that can be moved inside the external for height adjustment, the internal pipe being capable of stepwise or stepless movement and fixing in various positions and is thus telescopic. Such height adjustment and fixing can be done by stepwise moving the inner pipe - for example, with the help of fingers inserted into the through holes. It is also possible to smoothly adjust the height with fixation, for example, due to the presence of an external thread on the inner pipe, which can be screwed into the corresponding screw thread or nut, and this screw thread or nut rests on the outer pipe. Therefore, the inner pipe freely slides into the vertical pipe and is connected with other parts, for example, with a support plate having a thread. A vertical pipe can also be installed in a horizontal position, for example, between walls or formwork walls, which also falls within the scope of the inventive concept. In this case, the term "vertical pipe" includes any building support, in particular telescopic.

If a rod is used as the inner pipe, it can simply be freely inserted deep enough into the outer pipe so that the vertical pipe only receives pressure forces in the axial direction. Pressure forces are perceived by a nut screwed onto the rod or, in the most general form, by a screw thread, which in turn rests on the hole of the external pipe or, in general, on the external pipe. Further, the rod and nut are made in such a way that even with the maximum degree of unscrewing of the rod, it passes deep enough into the outer pipe. The nut preferably has a wing for turning without the aid of a tool. The rod may be inserted at the upper or lower end of the vertical pipe and thus form a top-rod or base-rod. Such a shaft preferably includes a top or base, a threaded pipe and a shaft nut. Such threaded rods are inserted, for example, also into the vertical posts of modular scaffolding or into the vertical pipes of facade or load-bearing scaffolding.

The recesses in the plates are preferably made in such a way that the influence of the lever overcomes the static friction between the mounting surface and the surface mating with it at the construction site and sliding friction occurs, creating less significant resistance. Therefore, experts choose the height and depth of the excavation so that it allows the use of conventional lever tools used at the construction site, for example, a nail puller, so that by applying the lever tool to the mating surface with a corresponding movement of the lever, a sufficiently large lateral shear force is produced. If the recess is too flat, the lever tool cannot be applied or will create too little force in the lateral direction. If the notch is too high, the degree of leverage is reduced. If the recess is too deep, that is, it goes too far in depth, towards the column, then under certain conditions the lever tool will be inserted too deep and will create essentially only a vertically directed force, and not the desired lateral force. If the notch is not deep enough, the impact of the lever will almost not create vertical force, and only very short movement to the side will occur - if at all. After that, the staff will have to operate the lever tool again, and often enough.

In an embodiment, it is provided that the recesses are such that, when exposed to a lever tool inserted therein, the top or base is separated from the mating surface. As a result, the contact area is reduced, and sliding friction occurs between the installed area and the mating surface, and less force is required for alignment.

Preferably, both of the aforementioned leverage are applied, namely, the separation of the top or base from the mating surface, which reduces friction, and the use of shear forces acting in the lateral direction, are simultaneously performed by a single pivotal movement of the lever. At the point of contact between the outer edge of the recess and the lever under the influence of the lever, a force arises whose vector is directed from the mating surface and to the vertical longitudinal axis of the pipe.

The dimensions recommended in the claims for a vertical pipe, for a top or base, and for excavation have shown themselves to be particularly suitable for construction conditions and convenient for the user.

The vertical pipe is preferably an integral part of scaffolding, for example, as a pipe for scaffolding or as one of the vertical posts in a scaffold frame. In the scaffold frame, two parallel vertical pipes in the lower and upper regions of the outer pipe are connected to each other by horizontal carriers, forming a frame. The so-called modular scaffolds are preferably connected via prefabricated system parts and have corresponding mating possibilities. This can be, for example, a system with plates for articulation on a vertical pin-neck and with wedge-shaped heads on spacers and diagonals for hanging them on plates. Alternatively, this may be a system with pre-prepared frames, which are fastened together with struts and diagonals and form a rigid connection.

The vertical pipe is preferably used for formwork or for supports, for example, as a construction support. The pipe or support is also used in an upside down position, so that the concepts “above” and “below”, “tops” and “base” are accordingly interchangeable in meaning and are not restrictive.

A brief comment on the figures of the drawings

Further advantages are apparent from the following description and the attached drawing. Similarly, the features already mentioned above and given below can be used according to the invention, individually or in any combination with each other, respectively.

Mentioned options for implementation should not be understood as a complete list and are in the nature of examples. The following are shown:

Figures 1a, 1b: telescopic vertical pipe in an axonometric image;

Figure 2: the leg region of the vertical pipe according to the invention in a perspective view, and

Figure 3: an embodiment of a pommel or base without a piece of pipe, in the form of a technical drawing.

The implementation of the invention

Figure 1a shows a telescopic vertical pipe 1 with a round outer pipe 2 and a circular inner pipe 3 moved in it, which is made here in the form of a threaded rod. Thus, the rod 3 is inserted into the outer pipe 2, and the height adjustment is infinitely variable, while the thread rests on the outer pipe at the top of the outer pipe 2 by means of a correspondingly formed counter-piece with a thread in the form of a nut 21, 5, rotated manually. That is, the outer pipe 2 carries a nut 21 with a shaft 3 screwed into it.

Rod 3, which here serves only as an example of an inner pipe in the construction of a telescopic vertical pipe, has at its free end — in this case, at the upper end 31 — 4 tops, essentially square — here with 10 rounded corners. The same applies to the lower free end 41 of the outer pipe 2. The tops or bases 4 have here according to the invention alignment aids in the form of recesses 42, which are explained in more detail below. The pipe 1 can also be installed with the opposite end, for example, as a support leg for scaffolding on uneven ground.

Figure 1b shows another embodiment of the construction support 1, which differs from Figure 1a only in the principle of its fastening 21. This height adjustment is performed by stepwise moving the inner pipe with the fingers inserted into the straight through holes in the inner pipe and the outer the pipe. Thereby, a coarse height adjustment is made. For fine adjustment, stepless movement by means of a screw thread is provided, as in figure 1a, which, however, occurs here only over a certain length in order to cover the area between two through holes. Here, the screw thread is provided only on a short section of the outer pipe 2, which is more economical and less laborious to manufacture.

In figure 2, as an example, the base 4 according to the invention is shown in detail, with all the comments naturally also referring to the corresponding pommel. A base 4 according to the invention is attached to the lower end 21 of the outer pipe 3, which typically produces by inserting the pipe end 21 into the round recess of the base 4 or by fitting the pipe end 21 onto the base preform 4 around this circular recess, followed by spot welding seam welding.

Base 4 in terms of material and size corresponds to commonly used substrates. In all four lateral edges 43 of the square or rectangular base, recesses 42 are made. They extend only along the middle region of the edge 43 so that it is possible to exert great efforts in the area of the recesses 42 without causing deformation of the base 4. The recess 42 is made by treating the base, for example, stamping. In this case, it is preferably an arcuate segment.

For reasons of stability, the machined edge region 43 is only 30 to 60%, preferably 35 to 45% of the total length of the edges.

The machined section, which forms the recess 42, has an arc shape in plan, the arcuate lines forming an angle less than 65 °, preferably less than 45 °, with the outer edge 43 of the base 4. This embodiment contributes to increased durability and prevents tearing in the region of the edge 43 of the recess 42.

The base may also be round, with a recess extending around the circumference. Then the lever can be applied anywhere, and thus it is possible to shift directly in any direction. Theoretically, only three recesses distributed with an interval of 120 ° would be sufficient. Similarly, a larger number of recesses is also possible. However, it is preferable to have four recesses distributed with an interval of 90 °, since they correspond to the usual representation in right angles and provide higher edge strength against its bending upwards. This is true regardless of the geometry of the base.

Finally, FIG. 3 is a technical drawing of a base according to the invention with approximate dimensions in millimeters.

Claims (2)

1. The method of alignment by means of a lever tool of a telescopic vertical pipe (1) located under the load and having a top and / or base (4) on the front side of at least one of its two free ends (21, 31), and the top and / or the base (4) with its supporting surface (41) rests on the mating surface, and moreover, there are recesses (42) on the edge of the top and / or base (4), such that between the top and / or base (4), with one side, and the mating surface, on the other hand, enter the lever tool with by performing operations:
a) the end of the lever tool is inserted into a recess (42) between the top and / or base (4) and the mating surface; and
b) the lever tool is moved and, as a result, the vertical pipe is moved along the mating surface. 2. The method according to claim 1, characterized in that during step b), turning the handle of the lever tool towards the vertical pipe, at the same time remove the top and / or base (4) from the mating surface and move the top and / or base (4 ) along the mating surface in the direction of the rotational movement.

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