RU51049U1 - SEALING GASKET - Google Patents

Abstract

The utility model relates to construction and can be used to seal joints between wall, roof panels and other similar building structures. EFFECT: creation of a sealing gasket increasing the quality of sealing joints, easy to manufacture and install. The sealing gasket is made in the form of an elastic tape, the width of which exceeds the width of the joint to be sealed. The thickness of the gasket is equal to where: h is the thickness of the gasket, m; l is the width of the gasket, m; P _cr - the tensile strength of the material from which the gasket is made, MPa; μ is the Poisson's ratio; E - Young's modulus of elasticity for the material from which the gasket is made, MPa; the width of the gasket is l≥1.5α, where α is the width of the joint to be sealed. 1 s.p. f-ly, 2 ill.

Description

The utility model relates to construction and can be used to seal joints between wall, roof panels and other similar structures.

Known gaskets of round, oval or rectangular cross-section (see GOST 25621-83 "Materials and products polymer building sealing and sealing", p.1.3.1), placed in the joints between the panels during installation, as, for example, shown in drawings descriptions of the image to ed. testimonial. USSR No. 1325143 IPC E 04 1/38, 1/60.

However, these sealing gaskets do not provide reliable sealing of joints, which is why it is recommended to pre-caulk joints with tarred dry tow or felt (see Series 2.230-2 “Details of walls and partitions of public buildings.” Issue 5 “Deformation seams of walls of frame-panel buildings in series constructions 1.020-1 / 83 ". Working drawings). Moreover, such gaskets are not universal and are delivered to the construction site of various sizes, taking into account possible variations in the size of the gaps in the joints. These shortcomings are especially significant when repairing old buildings and structures, where the difference in the size of the joint gaps is often very significant.

A sealing gasket is known, made of elastic material in the form of a wall and a shelf connected at right angles, which is provided with a tide to connect to the underlying panel, while longitudinal channels are formed in the gasket wall, and flaps are located on its surface facing the shelf (see USSR patent No. 510156, IPC E 04 B 1/68).

The described sealing gasket improves the sealing of the joint, but can only be used when installing new buildings and structures and is not acceptable for sealing joints during repair. In addition, the manufacturing technology of this gasket is much more complicated than described above.

For the prototype, a sealing gasket made in the form of an elastic tape, the width of which exceeds the width of the joint to be sealed, was selected (see GOST 25621-83 “Materials and products for polymer building and sealing and sealing” clause 1.3.1).

The specified sealing gasket is easy to manufacture and is used to seal joints both during the installation of new buildings and structures, and during repair.

The main disadvantages of the prototype include the fact that the sealing quality of the repaired joint largely depends on the conscientiousness of the worker performing this work, which includes applying the adhesive composition, introducing the gasket in a bent form into the joint and then pressing (gluing) the gasket using a wooden or metal spatula with a blunt edge.

In order to reduce the influence of the human factor on the quality of sealing joints with a gasket made in the form of an elastic tape, numerous attempts have been made to mechanize the sealing process (see, for example, author certificate. No. 676704, IPC E 04 V 1/60 “Method for sealing a joint between prefabricated structures "). However, as a rule, all these technical solutions, increasing the quality of the joint sealing, at the same time reduced the productivity of the sealing process, complicated it, and often increased energy costs.

The technical task of the utility model was to create a gasket that improves the quality of sealing joints, easy to manufacture and install.

The essence of the utility model is that in a sealing gasket made in the form of an elastic tape, the width of which exceeds the width of the sealed joint, the thickness of the sealing gasket is equal to

where: h is the thickness of the gasket, m;

l is the width of the gasket, m;

P _cr - the tensile strength of the material from which the gasket is made, MPa;

μ is the Poisson's ratio;

E - Young's modulus of elasticity for the material from which the gasket is made, MPa.

In addition, the width of the gasket is l≤1.5α, where:

l is the width of the gasket, m;

α is the width of the sealing joint, m

This design of the gasket provides it with the elasticity necessary for spontaneous pressing of the ends of the gasket to the end surfaces of the panels forming the joint. This improves the quality of the joint sealing.

The proposed gasket is easy to manufacture and install. It can be made of rubber, butyl rubber, polyurethane, polyvinyl chloride and other elastic materials.

The utility model is illustrated by drawings, where in Fig.1 shows a General view of the sealing gasket, figure 2 is a joint sealed by the proposed sealing gasket.

The sealing gasket is made in the form of an elastic tape 1, the width "l" of which exceeds the width "α" of the sealed joint. The thickness of the gasket is equal

Where:

h is the thickness of the gasket, m;

l is the width of the gasket, m;

P _cr - the tensile strength of the material from which the gasket is made, MPa;

μ is the Poisson's ratio, dimensionless;

E - Young's modulus of elasticity for the material from which the gasket is made, MPa.

The above formula was obtained by the applicant empirically and is acceptable for determining the thickness of gaskets made of any elastic materials.

This thickness of the gasket provides it with the elasticity necessary for spontaneous pressing of the ends of the gasket to the end surfaces of 2.3 panels 4,5, forming a joint (see figure 2).

The most optimal strip width l≥1.5α., Where:

l is the width of the gasket, m;

α is the width of the sealing joint, m

With such a width of the sealing gasket, poor-quality joint sealing is virtually eliminated due to carelessness when bending the gasket and introducing it into the joint.

If the width of the sealing gasket is equal to 1.5α> l≥1,2α, then when introducing the bent gasket into the joint, it is necessary to ensure that the bent ends of the gasket are at the same level with each other. That is, in other words, the gasket must be bent in the middle, along the axial line NN ¹ (see figure 1). Otherwise, the joint sealing may not be provided.

If the width of the gasket is equal to l <1,2α, the joint will not be sealed.

Sealing the joint of the proposed sealing gasket is as follows. On end surfaces 2,3 or on

one of the surfaces of the gasket is applied with an adhesive composition. The gasket is bent along the axial line NN ¹ , introduced into the joint in a bent (compressed) state, and then released. The gasket under the influence of its own elasticity is expanded, trying to return to its original position, and with its ends comes into contact with the end surfaces 2,3, glued to them, as shown in figure 2. To increase the reliability of gluing the gasket it is recommended to press it to the end surfaces 2,3 by means of, for example, a spatula. The last operation is most relevant if the end surfaces have significant irregularities.

Claims (1)

1. A sealing gasket made in the form of an elastic tape, the width of which exceeds the width of the sealed joint, characterized in that its thickness is

where h is the thickness of the gasket, m; 1 - the width of the gasket, m; P _cr - the tensile strength of the material from which the gasket is made, MPa; μ is the Poisson's ratio; E - Young's modulus of elasticity for the material of which the gasket is made, MPa, the width of the sealing strip is equal to 1≥1, 5α, where α is the width of the joint to be sealed, m