RU2810368C1 - Flexible mounting loop - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: claimed invention relates to flexible mounting loops that can withstand various standard loads and are installed in single-layer facade and wall panels, floor slabs during loading, unloading and installation work, as well as when removing reinforced concrete products from moulds. A flexible mounting loop sewn from double textile tape comprises an eye, two anchor sections, two main straight anchors and two additional anchors inserted into the anchor ears of the double textile tape, additional anchors are made curved or straight, anchor ears which are located up to the boundary of the transition of the anchor sections into the eyelet, the inflection point of which is equipped with a protective cuff located on the inner surface of the textile tape, there are protective cuffs covering the outer surfaces of the anchor ears of additional anchors, and part of each of the protective cuffs is located inside the concrete product, and the other part above the surface of the concrete product, the anchor sections are equipped with guides located inside the textile tape, where one of the anchor sections at the stitching site is equipped with an additional layer of textile tape, the anchor ears of the main anchors are equipped with internal liners.

EFFECT: improved design of a flexible mounting loop for increasing its reliability (strength characteristics while simultaneously improving the tensile and shear characteristics of the device), increasing the productivity and quality of loading, unloading and installation work, as well as reducing the potential danger and level of injuries in construction industry.

9 cl, 7 dwg

Description

The claimed invention relates to the field of construction, in particular, to flexible mounting loops that can withstand various standard loads and are installed in single-layer facade and wall panels, floor slabs during loading, unloading and installation work, as well as when removing reinforced concrete products from molds.

The closest technical solution (prototype) is a flexible mounting loop according to RF patent No. 2764008, E04G 21/14, publ. 01/12/2022 Bulletin. No. 3, made of double textile tape, containing an eyelet, two anchor sections, two main anchors and two additional anchors inserted into the anchor ears of the double textile tape.

Disadvantages of the prototype: the reliability (strength) of the flexible mounting loop is reduced due to:

1) the absence of a protective cuff in the eye, therefore, the likelihood of breaking the flexible mounting loop by the tip of the hook of the lifting mechanism when slinging/transporting the device increases;

2) the absence of internal liners of the anchor lugs of the main anchors, which take on the main load when lifting reinforced concrete products, therefore the likelihood of destruction of the anchor lugs of the main anchors increases;

3) the absence of protective cuffs on the surfaces of the anchor ears of additional anchors, therefore the likelihood of cutting off the section of the flexible mounting loop at the point where it exits the concrete product increases, because this is facilitated by the sharp edge of the concrete or the specified area may be damaged during the grinding of the concrete surface;

4) the absence of guides located inside the textile tape, so bending of the anchor sections may occur, which leads to a decrease in the strength and reliability of the prototype;

5) the absence of an additional layer of textile tape located at the place of stitching and formed, for example, by bending one of its ends, therefore the quality of the flexible mounting loop is reduced due to a decrease in its reliability (tensile and shear strength) during installation and molding;

6) the absence of internal liners of the anchor lugs of the main anchors, which increases the likelihood of destruction of these lugs during operation of the device, because These anchor ears of the main anchors take on the main load when lifting reinforced concrete products.

The technical problem solved by the creation of the claimed invention is that the modern consumer, when producing concrete blocks, as well as when carrying out installation, lifting, and transport work with them, needs simple, reliable, effective and safe technical solutions that facilitate ease of installation and molding of the product at the factory - the manufacturer while simultaneously reducing the level of industrial injuries, fire danger at sites and the cost of work. It is known that the main technical causes of industrial injuries (accidents) in the construction industry are design flaws of the devices used due to their imperfections and insufficient strength/reliability.

The technical result of the claimed invention is to improve the design of a flexible mounting loop for the purpose of increasing its reliability (strength characteristics while simultaneously improving the tensile and shear characteristics of the device), increasing the productivity and quality of loading, unloading and installation work, as well as reducing the potential danger and level of injuries in construction industry.

The technical result is achieved by the fact that a flexible mounting loop, sewn from double textile tape, contains an eyelet, two anchor sections, two main straight anchors and two additional anchors inserted into the anchor ears of the double textile tape, additional anchors are made curved or straight, anchor ears which are located up to the boundary of the transition of the anchor sections into the eyelet, the bend point of which is equipped with a protective cuff located on the inner surface of the textile tape, there are protective cuffs covering the outer surfaces of the anchor ears of additional anchors, and part of each of the protective cuffs is located inside the concrete product, and the other part - above the surface of the concrete product, the anchor sections are equipped with guides located inside the textile tape, where one of the anchor sections at the stitching site is equipped with an additional layer of textile tape, the anchor ears of the main anchors are equipped with internal liners. Moreover, additional curved anchors are made in an L-shape. Moreover, the protective cuff of the eyelet is made of at least one layer of textile tape and is attached to the eyelet by stitching or gluing. Moreover, the protective cuff of the eyelet is made of a flexible polymer and is attached to the eyelet by stitching or gluing. Moreover, the protective cuff located on the inner surface of the eyelet is made along its entire length. Moreover, the eyelet is equipped with a single protective cuff, extending from one anchor eyelet to another and covering the eyelet on all sides, as well as covering the anchor ears on all sides and along their entire length, replacing the protective cuffs of the anchor ears of additional anchors. Moreover, the protective cuffs of the anchor ears of the additional anchors are made of at least one layer of textile tape and are attached to the textile tape by stitching or gluing. Moreover, the internal liners of the anchor ears of the main anchors are made of at least one layer of textile tape and are attached to the textile tape by stitching or gluing. Moreover, there is a protective coating for the flexible mounting loop, made in the form of a protective film made of flexible polymer.

New significant distinctive features of the proposed technical solution are the following features:

- additional anchors are made curved or straight;

- anchor lugs of additional anchors are located up to the boundary of the transition of the anchor sections into the lug;

- the bend point of the eyelet is equipped with a protective cuff located on the inner surface of the textile tape;

- there are protective cuffs covering the outer surfaces of the anchor ears of additional anchors, where part of each of the protective cuffs is located inside the concrete product, and the other part is located above the surface of the concrete product;

- anchor sections are equipped with guides located inside the textile tape;

- one of the anchor sections of the flexible mounting loop is equipped with an additional layer of textile tape located at the stitching site;

- anchor ears of the main anchors are equipped with internal liners.

The set of new essential distinctive features, along with the features known from the prior art, is sufficient to solve the specified technical problem and obtain the technical result provided by the invention - improving the design of a flexible mounting loop for the purpose of increasing its reliability (strength characteristics while simultaneously improving the tensile and shear characteristics of the device), increasing productivity and quality of loading and unloading and installation work, as well as reducing potential hazards and injury rates in the construction industry.

The essence of the proposed invention, its feasibility and the possibility of industrial application is illustrated by drawings (Fig. 1, 2, 3, 4, 5, 6, 7), where:

in fig. 1 - axonometric projection of a flexible mounting loop, part of which is located in the thickness of concrete products (shown conditionally);

in fig. 2 is a front view of a flexible mounting loop connected to the reinforcement frame of a concrete product, where the additional anchor is curved;

in fig. 3 - side view of the flexible mounting loop;

in fig. 4 is a side view of a flexible mounting loop with a protective collar located along the entire length and entire surface of the eye;

in fig. 5 - remote view of the main anchor;

in fig. 6 is a front view of a flexible mounting loop connected to the reinforcement frame of a concrete product, where the additional anchor is made straight:

in fig. 7 is a side view of a flexible mounting loop with a protective collar located along the entire length of the inner surface of the eyelet.

The drawings (Fig. 1, 2, 3, 4, 5, 6, 7) contain the following symbols:

1 - double textile tape;

2 - main anchor;

3 - main anchor;

4 - additional anchor;

5 - additional anchor;

6 - anchor eye;

7 - anchor eye;

8 - anchor eye;

9 - anchor eye;

10 - eye;

11 - anchor section;

12 - anchor section;

13 - concrete product;

14 - concrete product;

15, 15a - knitting wires;

16, 16a - knitting wires;

17 - reinforcement cage;

18 - reinforcement cage;

19 - stitching zone;

20 - stitching zone;

21 - eyelet protective cuff;

22 - single protective cuff;

23 - protective cuff of the anchor eye;

24 - protective cuff of the anchor eye;

25 - anchor section guide;

26 - guide of the anchor section;

27- additional layer of double textile tape;

28 - inner liner of the anchor eye of the main anchor;

29 - inner liner of the anchor eye of the main anchor.

The flexible mounting loop shown in FIG. 1, 2, 3, 4, 5, 6, 7, intended for slinging reinforced concrete panels during slinging, transport and installation work, consists of a sewn double textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7), as well as two main (load-bearing) anchors 2, 3 of a straight form and two additional: curved (for example, ∧-shaped) or straight anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7 ), inserted into anchor ears 6, 7 (Fig. 1, 2, 3, 4, 5, 6, 7) and 8, 9 (Fig. 1, 2, 3, 4, 6, 7), respectively, made in double textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7). Additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7) act as protective reinforcing anchors in the claimed device.

The flexible mounting loop contains an eyelet 10, which is a section of textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7), located between two additional (protective, reinforcing) anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7). The eye 10 (Fig. 1, 2, 3, 4, 6, 7) is designed to capture the loop with the hook of the lifting device (not shown in Fig.). Due to the small thickness of the textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7), the eye 10 (Fig. 1, 2, 3, 4, 6, 7) is easily captured by the load-handling member of the lifting mechanism.

The flexible mounting loop contains two anchor sections 11 (Fig. 1, 2, 3, 4, 6, 7) and 12 (Fig. 1, 3, 4, 5, 7), which are located between the main anchors 2, 3 (Fig. 1, 2, 3, 4, 5, 6, 7) and additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7). The depth of launching the main anchors 2, 3 (Fig. 1, 2, 3, 4, 5, 6, 7) of the flexible mounting loop into concrete products is determined by the length of the anchor sections 11, 12 (Fig. 1, 2, 3, 4, 5, 6, 7).

Bend points of additional anchors 4, 5: additional anchors of ∧-shape and straight form (Fig. 1, 2, 3, 4, 6, 7) with textile tape 1 - Fig. 1, 2, 3, 4, 5, 6, 7) are located in the locations of the anchor ears 8, 9 (Fig. 1, 2, 3, 4, 6, 7).

Anchor lugs 8, 9 additional anchors 4, 5 are located at the boundaries of the transition of the anchor sections into the lug 10 and are located in the thickness of concrete/reinforced concrete products (for example, panels) 13, 14 (Fig. 1, 4) so that they do not protrude above them surface.

The main anchors 2, 3 (Fig. 1, 2, 3, 4, 5, 6, 7) and additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7) are precisely fixed in the body of the concrete products 13 , 14 (Fig. 1, 4) by fastening with knitting (for example, steel) wires 15, 15a, 16, 16a (Fig. 1, 2, 6) to reinforcement frames (reinforcement mesh) 17, 18. The presence of fixation of the main anchors 2 , 3 (Fig. 1, 2, 3, 4, 5, 6, 7) and additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7) allows the proposed device to be placed in concrete products 13, 14 (Fig. 1, 4) without bending, which is carried out by tensioning the anchor sections 11, 12 (Fig. 1, 2, 3, 4, 5, 6, 7).

The main anchors 2, 3 and additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7) are made of different materials with high strength: composite reinforcement (fiberglass, basalt plastic), metal reinforcement or other materials.

Double textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7) is made with stitching zones 19, 20 (Fig. 1, 2, 6).

On the inner surface of the eyelet 10 (Fig. 1, 2, 3, 4, 6, 7), at the point of its bend, there is a protective cuff 21 (Fig. 3, 7), made of at least one layer of textile tape or made of flexible polymer. The protective cuff 21 is attached to the inner surface of the eyelet 10 (Fig. 1, 2, 3, 4, 6, 7), for example, by stitching, gluing or other reliable way, which allows you to protect the eyelet 10 from mechanical impact, i.e. from a possible cut by the hook of the lifting mechanism (not shown in Fig.), and also allows you to distribute loads when tensioning/stretching the claimed loop during the slinging of reinforced concrete panels 13, 14 (Fig. 1, 4). The protective cuff 21 (Fig. 3, 7) also prevents wear of the eye 10 (Fig. 1, 2, 3, 4, 6, 7) at the point of contact with the metal hook (not shown in Fig.) of the lifting device.

The protective cuff 21 (Fig. 3, 7) can also be made along the entire length of the inner surface of the eyelet 10 (Fig. 1, 2, 3, 4, 6, 7).

Anchor ears 8, 9 additional anchors 4, 5 are equipped with protective cuffs 23, 24 (Fig. 2, 3, 6, 7), which make it possible to protect the claimed mounting loop from being cut by the sharp edges of concrete products 13, 14 (Fig. 1, 4) in exit points of the ends of the claimed flexible mounting loop made of concrete. Part of the length (for example, half) of each of the protective cuffs 23, 24 (Fig. 2, 3, 6, 7) is located in the thickness (inside) of concrete products 13, 14 (Fig. 1, 4), and the other part (for example, half) - above the surface of each of the concrete products 13, 14. Protective cuffs 23, 24 (Fig. 2, 3, 6, 7) are made of at least one layer of textile tape and attached to anchor ears 8, 9 (Fig. 1, 2, 3, 4, 6, 7) by stitching, gluing or other reliable method.

The eye 10 (Fig. 1, 2, 3, 4, 6, 7) can also be equipped with a single (long) protective cuff 22 (Fig. 1, 4), extending from one anchor eye 8 (Fig. 1, 2, 3 , 4, 6, 7) to another anchor eye 9 (Fig. 1, 3, 4, 7) with coverage of the eye 10 (Fig. 1, 2, 3, 4, 6, 7) on all sides and with coverage of the anchor ears 8, 9 (Fig. 1, 2, 3, 4,6, 7) along their entire length, replacing the protective cuffs 23, 24 (Fig. 2, 3, 6, 7) of additional anchors 4, 5 (Fig. 1 , 2, 3, 4, 6, 7).

The anchor sections 11, 12 are equipped with straight guides 25, 26, respectively, which are located between two layers of textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7), along its length. Straight-line guides 25, 26 (Fig. 1, 2, 3, 4, 6, 7) can be made of different materials with high strength: composite reinforcement (fiberglass, basalt plastic), metal reinforcement or other materials and can have sections of various shapes . The presence of strong straight guides 25, 26 allows you to maintain the straight shape of the anchor sections 11, 12 (Fig. 1, 2, 3, 4, 5, 6, 7) of the mounting loop and ensure the tension of the anchor sections 11, 12 of the device during operation of the device.

The anchor section 12 (Fig. 1, 3, 4, 5, 7) is equipped with an additional layer 27 (Fig. 3, 4, 7) of textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7), formed, for example, by bending one of the ends of the textile tape 1 and located at the place where the loop is sewn together to form three to four layers of textile tape 1 in this place.

Anchor ears 6, 7 (Fig. 1, 2, 3, 4, 5, 6, 7) of the main anchors 2, 3 are equipped with internal liners 28, 29 (Fig. 3, 4, 5, 7), constituting half the circumference ( located in its lower half) and intended for additional protection of the anchor ears 6, 7 (Fig. 1, 2, 3, 4, 5, 6, 7) from shearing. The inner liners 28, 29 (Fig. 3, 4, 5, 7) are made of one layer of textile tape and attached to the textile tape 1 (Fig. 1, 2, 3, 4, 5, 6, 7) by stitching, gluing or any in another reliable way.

The main (bearing) anchors 2, 3 and additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7) are fixed using steel tie wires 15, 15a, 16, 16a (Fig. 1, 2, 6 ) to the reinforcement frames (mesh, reinforcement) 17, 18 (Fig. 1, 2, 6) mounted inside the concrete products 13, 14 (Fig. 1, 4), which are placed so as to ensure tension between the main (bearing) anchors 2 , 3 (Fig. 1, 2, 3, 4, 5, 6, 7) and additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7), which protects the concrete 13, 14 (Fig. 1, 4) from puncturing. The specified tension is carried out using knitting wires 15, 15a, 16, 16a (Fig. 1, 2, 6).

To prevent the textile tape from damage and adverse consequences, it can be covered with a protective film (not shown in Fig.), made, for example, from a flexible polymer.

Due to the flexibility of the proposed mounting loop, it can be implemented in concrete products of complex shapes, which can be problematic when using conventional metal mounting loops.

The flexible mounting loop in concrete products 13, 14 (Fig. 1.4) is mounted as follows. Reinforcing frames 17, 18 (Fig. 1, 2, 6) are placed in the formwork (not shown in Fig.), on which the ends of the flexible mounting loop are laid. The main (bearing) anchors 2, 3 (Fig. 1, 2, 3, 4, 5, 6, 7) are attached to the lower part of the reinforcement frames 17, 18 using binding wires 15a, 16a (Fig. 1, 2, 6) .

Additional anchors 4, 5 (Fig. 1, 2, 3, 4, 6, 7) are attached with binding wires 15, 16 (Fig. 1, 2, 6) to the upper parts of the reinforcement cages 17, 18 so that their shoulders (on fig. not shown) were directed towards the main (load-bearing) anchors 2, 3 (fig. 1, 2, 3, 4, 5, 6, 7), having previously ensured the tension of the anchor sections 11, 12 of the flexible mounting loop. In this case, the protective cuffs 23, 24 (Fig. 2, 3, 6, 7), covering the anchor ears 8, 9 (Fig. 1, 2, 3, 4, 6, 7) of additional anchors 4, 5, are positioned so that one part of each of the cuffs 23, 24 (Fig. 2, 3, 6, 7) was located in the concrete product 13, 14 (Fig. 1, 4), and its other part was located above the surface of the finished concrete product 13, 14.

The eyelet 10 (Fig. 1, 2, 3, 4, 6, 7) with a protective collar 21 (Fig. 3, 7) is positioned so that in the finished concrete product it is above the surface of the finished concrete product 13, 14 (Fig. 1 , 4). Then the formwork is filled with concrete and vibratingly compacted. The depth of location of the main (load-bearing) anchors 2, 3 (Fig. 1, 2, 3, 4, 5, 6, 7) in concrete products 13, 14 (Fig. 1, 4) is determined by the lengths of the anchor sections 11, 12 (Fig. 1, 2, 3, 4, 5, 6, 7).

After performing the slinging/installation work, the eyelet 10 (Fig. 1, 2, 3, 4, 6, 7), if necessary, is cut off with a cutting tool, i.e. without the use of equipment designed for gas or mechanical cutting of metal, which reduces the likelihood of a fire situation at a construction site, also ensures the safety and health of workers and reduces the labor intensity of work.

Unlike the prototype, in the proposed technical solution, additional anchors can be made curved (for example, L-shaped) or straight, which promotes stronger adhesion of the anchors to the concrete, while increasing the reliability of the device itself, as well as the reliability of slinging work.

Unlike the prototype, in the proposed technical solution the eyelet is made with a protective cuff, which helps reduce the likelihood of the eyelet breaking with the tip of the hook of the lifting mechanism when slinging or transporting a concrete product. The presence of a protective cuff for the eyelet increases not only the strength characteristics of the eyelet, but also the device itself as a whole, i.e. the reliability of the proposed loop increases during its operation.

Unlike the prototype, where the anchor lugs of additional anchors are located at the border of the transition of the anchor sections into the eye, in the proposed technical solution, the anchor lugs of the additional anchors are located before the border of the transition of the anchor sections into the eye (i.e., in the thickness of the concrete product), which prevents destruction of the surface concrete product at the location of additional anchors when transporting a concrete product, thus increasing the reliability of installation work and reducing the number of defects when transporting products using flexible mounting loops.

In contrast to the prototype, the presence in the proposed technical solution of protective cuffs covering the outer surfaces of the anchor ears of additional anchors, where part of each of the protective cuffs is located inside the concrete product, and the other part above the surface of the concrete product prevents the cutting of the flexible mounting loop at the point of its exit from a concrete product, which increases the reliability of installation work and reduces the amount of defects when transporting products using flexible mounting loops.

Unlike the prototype, in the proposed technical solution, the anchor sections are made with guides located inside two layers of textile tape, which prevents bending of the anchor sections of the textile tape, increasing the strength characteristics of the proposed device for internal concrete chipping during loading and unloading operations, as well as for tearing and shearing of the device, increasing operational reliability by increasing the strength of the flexible mounting loop.

Unlike the prototype, in the proposed technical solution, one of the anchor sections is made with an additional layer of textile tape located at the stitching site and formed, for example, by bending one of the ends of the textile tape, which increases the reliability (strength) of the proposed device.

Unlike the prototype, in the proposed technical solution, the anchor ears of the main anchors are equipped with internal liners, which reduces the likelihood of destruction of the anchor ears of the main anchors, increasing their operational reliability, because they take on the main load when lifting reinforced concrete products.

Along with the above, the proposed technical solution, which can withstand the required standard load for flexible mounting loops, increases the productivity of installation work with concrete products, which is achieved by reducing the likelihood of all kinds of emergency situations, simplifying the installation process of a flexible mounting loop when molding a concrete product, simplifying the installation process concrete product during construction; facilitating the transportation of manufactured concrete products and the process of stacking them.

The implementation of the proposed invention makes it possible to solve the stated technical problem and ensure the achievement of the stated technical result.

The proposed technical solution has constructive unity and implements a common functional purpose (functional unity).

The proposed technical solution does not clearly follow from the prior art. During the patent search process, no technical solutions were identified that coincide with its essential distinctive features; therefore, it satisfies the “inventive step” patentability condition.

The prior art has not found an analogue characterized by features identical to all the essential features of the claimed invention.

The applicant approved (tested) the proposed device, which confirmed its purpose, feasibility and performance, and therefore the claimed invention meets the patentability requirement of “industrial applicability”.

Claims (9)

1. A flexible mounting loop, sewn from double textile tape, containing an eyelet, two anchor sections, two main straight anchors and two additional anchors inserted into the anchor ears of the double textile tape, characterized in that the additional anchors are curved or straight, anchor ears which are located up to the border of the transition of the anchor sections into the eye, the bend point of which is equipped with a protective cuff located on the inner surface of the textile tape, there are protective cuffs covering the outer surfaces of the anchor ears of additional anchors, where part of each of the protective cuffs is located inside the concrete product, and the other part - above the surface of the concrete product, the anchor sections are equipped with guides located inside the textile tape, where one of the anchor sections at the stitching site is equipped with an additional layer of textile tape, the anchor ears of the main anchors are equipped with internal liners. 2. Flexible mounting loop according to claim 1, characterized in that the additional curved anchors are ∧-shaped. 3. Flexible mounting loop according to claim 1, characterized in that the protective cuff of the eyelet is made of at least one layer of textile tape and is attached to the eyelet by stitching or gluing. 4. Flexible mounting loop according to claim 1, characterized in that the protective cuff of the eyelet is made of a flexible polymer and is attached to the eyelet by stitching or gluing. 5. Flexible mounting loop according to claim 1, characterized in that the protective cuff located on the inner surface of the eyelet is made along its entire length. 6. Flexible mounting loop according to claim 1, characterized in that the eyelet is equipped with a single protective collar extending from one anchor eyelet to another and covering the eyelet on all sides, as well as covering the anchor ears on all sides and along their entire length, replacing protective cuffs of anchor ears of additional anchors. 7. Flexible mounting loop according to claim 1, characterized in that the protective cuffs of the anchor ears of additional anchors are made of at least one layer of textile tape and are attached to the textile tape by stitching or gluing. 8. Flexible mounting loop according to claim 1, characterized in that the internal liners of the anchor ears of the main anchors are made of at least one layer of textile tape and are attached to the textile tape by stitching or gluing. 9. Flexible mounting loop according to claim 1, characterized in that there is a protective coating made in the form of a protective film made of a flexible polymer.