DE7013748U - PRE-FILLING CONTAINER FOR CONCRETE PUMPS. - Google Patents

Description

"·"»·>'..' I '· \.' 8000 Munich Si, 40,

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Dipl.-Phys. Eduard Betzier ^ρ * ™ ^ίΙΙ; * ^βΓ :! ΞΞ mm « Dipl.-Ing. W. Herrmann-Trentepohl *** "* ^ ³⁰¹³ Bahrpaten.e Herne PATENTANWÄLTE

_ΤβΙβχ O _8229853 ^^

Γ ^ ~ 1 bank accounts:

Bayrische Vereinsbank Munich 952

Fi ΊΠ T ^ ΊΑΆ 7 Dresdner Bank AG Herne 7-520 499

. tr rU 15 Καθ postal check account Dortmund 55868

^{Ref- :} A 22 025

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2.3.1973

Dipl.-Ing. Friedrich Schwing, Wanne - Eickel, Hathausstr.

"Pre-fill container for

The innovation relates to a pre-filling tank for concrete pumps to erect a high concrete column above the intake opening the pump.

Maintaining a concrete column of sufficient height Above the suction opening of a concrete pump prevents the suction of air and thereby guarantees the maximum volumetric Efficiency of the Pampe. It is therefore desirable to use the mostly trough-shaped, but also funnel-shaped pre-fill containers to be as low as possible. On the other hand, the upper hand of the container must not be placed too high because otherwise the filling of the prefill container with the concrete will be difficult caused.

Difficulties of this kind occur particularly easily with mobile concrete mixers that use slides to transfer the concrete or chutes are provided. These slides must not be shallower than the slip angle of the concrete; otherwise

there were obstructive build-ups of the concrete in the chute . To overcome such difficulties, it is generally not possible to set the discharge opening of the mixer higher. If the concrete pump is mobile for its part, it cannot be set lower because the required ground clearance must be maintained.

Attempts are often made on construction sites to overcome these difficulties by building a ramp on the concrete pump. The mixer vehicles drive onto the ramp and gain so much height that the slide can be moved at the required steep angle. The construction however, such ramps are laborious and time consuming; the use of the ramps requires a considerable amount of driving skills Can and is not without danger because of the inevitable sludge deposits on the ramp.

The task of the innovation is based on the technical problem of creating a pre-filling container whose upper Limitation does not prevent compliance with a sufficiently steep angle of slide, but its content on the other hand is not so low that the efficiency of the Pu & pe is deteriorated.

According to the innovation, this problem is solved in that, to increase the concrete column, the upper edge of the pre-filling container by an apron made of elastic material is increased.

The apron can avoid the slide so that the bottom of the slide is below the level of the free edge of the apron that this can be achieved with an unloaded apron. This makes it possible to adjust the angle of inclination of the slide as well

to be set correctly if the funnel edge is high. on the other hand

j is the elastic material that makes up the apron

exists at the sliding bottom, where it forms a concrete-tight connection, so that in spite of the deformation of the skirt through the chute one Erhöhuigder concrete column in the container comes about _r which prevents the suction of air.

The main advantage of such a prefill container is (Γ in that it makes the filling of the pump independent of the respective construction site conditions, but also of the demands placed on mobile concrete mixers and concrete pumps must be asked.

The apron expediently consists of, if necessary, with a Wire insert or a textile fabric reinforced rubber or plastic, which is attached to the pre-filling container in such a way that the container walls are extended enters above.

The dimensions of the apron can be chosen over the circumference of the container edge in such a way that the free apron ην edge runs approximately horizontally.

The apron can be attached to the container from the start, but can also be retrofitted. This is particularly easy if the apron is attached to the edge of the container with the help of Screws is attached, which penetrate the container, the apron and a metal base.

This innovation is explained in more detail below with reference to the drawings for better understanding. These show in solid lines the position of the parts that they occupy in the loaded state of the apron, while in stretched lines

chelter representation to recognize the unloaded apron is.

The Akoau opening is located above a concrete pump 1 of the usual type 2, which is controlled by a slide. A pre-fill container 3 is permanently mounted above the slide, with which a concrete column is maintained above the suction opening 2 which prevents the suction of air by the pump 1.

For this purpose and to increase the concrete column in the container 3, the upper edge 4 of the pre-fill container is through a Apron 5 made of elastic material increased.

In the illustrated embodiment, the apron is made of rubber and is reinforced with an insert. she is attached to the upper edge of the container 4 to extend the walls of the container 3.

For this purpose, holes 6 are provided in the apron and in the edge of the container at certain intervals, which take screws, which are supported with their nuts on a metal base 7.

The dimensions of the apron are about the circumference of the container rim 4 seen different, but chosen so that the free skirt edge 8 runs approximately horizontally.

As can be seen, a chute 9 »which can be used as a handover of the concrete from a mixer is used, the skirt 5 deform so that the bottom 11 of the chute forms an angle with which includes the horizontal, which corresponds to the slip angle of the concrete. The area 10 of the apron lies down

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while sealing to the outside of the chute 9, so that the extension of the prayers achieved by the skirt 5 = column over the upper edge 4 of the container 3 is also retained.

Protection claims

Claims (4)

It · · -6- claims for protection 1. Pre-filling tank for concrete pumps for the construction of a Concrete column above the suction opening of the pump, d u r ch marked that to increase the concrete column the upper edge (4) of the prefill container (3) through an apron (5) made of elastic material is raised. 2. Device according to claim 1, characterized in that that the apron made of a reinforced with a wire insert or a textile fabric Rubber or plastic is made and for extension the container walls is attached to the container edge. 3. Device according to claims 1 and 2, characterized gekennzei c h η e t that the dimensions of the Apron are chosen over the circumference of the container edge so that the free apron edge (8) is approximately horizontal runs. 4. Device according to claims 1 to 3, characterized in that the apron on the container edge by means of screws (12) which penetrate the container, the skirt and a metal base .