RU2531881C1 - Floating platform plastic fastener - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to self-floating structures, particularly, to fasteners moulded from plastics to joint floating elements together to make floating platforms. Plastic fastener comprises head with at least one slot for wrench and at least two locking latches, connection rod and end part with at least one locking ledge at side surface. It differs from known designs in that it is composed of three rigidly coupled parts. At least two of the latter, that is, head with locking latches and end part, are moulded. Note here that connection rod is composed of a tube while head is composed of a tray. Locking latches are composed by main barrel wall while said tray accommodates extra barrel fitted inside the main one. Neck of said extra barrel is connected with one of tube ends while tube opposite end is rigidly connected with end part.

EFFECT: higher reliability, lower labour and material input.

3 cl, 4 dwg

Description

The invention relates to floating equipment intended for special purposes, namely to pontoons, floating docks, rafts and other floating structures, in particular to structures of fasteners molded from plastic and intended for connecting floating elements and the formation of floating platforms.

Closest to the technical nature of the present invention is a plastic fastener of a floating platform selected as a prototype, comprising a hat with at least one key slot and at least two locking latches, a connecting rod and an end part with at least at least one locking protrusion on the side surface and made in one piece by extrusion blow molding (US patent No. 3824644, Fig.5 and 6, publ. 07/23/1974).

The disadvantages of the prototype are the low operational capabilities of the fastener due to its implementation in the form of a single part and the need to use expensive and bulky equipment in its manufacture by extrusion blow molding, as well as due to the low quality of the product and if it is made with a defect from -for the need to replace the entire part.

The technical result achieved by the present invention is to expand operational capabilities by improving reliability by improving the quality of casting, ensuring the accuracy of casting when choosing the specified dimensions of the walls of the fastener, cheaper equipment, reducing the complexity of manufacturing and material costs by casting individual small parts in smaller molds the size and lack of the need to replace the entire fastener, but only that part of it that may have a defect.

The technical result is achieved in that the plastic fastener of the floating platform, comprising a hat with at least one key slot and at least two locking latches, a connecting rod and an end part with at least one locking protrusion on side surface, made of three inextricably interconnected parts, at least two of which, the cap with the locking latches and the end part, are cast, while the connecting rod is made in ide tube, the cap is made in the form of a plate, the locking latches are formed by the wall of the main glass, and the plate has an additional glass located inside the main, the neck of which is inextricably connected to one end of the tube, the other end of which is inextricably connected to the end part. In addition, the plate and the main and additional glasses can be arranged coaxially, and stiffeners can be made between the plate and the main glass and between the last and additional glasses.

Figure 1 shows a plastic mounting element of a floating platform, a General view in isometric view, computer graphics,

figure 2 is the same, bottom view,

figure 3 is a longitudinal section along aa in figure 2, rotated,

figure 4 - individual details of the plastic fastener, in isometry.

The plastic mounting element of the floating platform comprises a cap 1 with at least one socket 2 (two holes are shown in FIGS. 2 and 3) for a key (not shown in the drawings) and at least two locking latches 3 (in FIG. 1, 2 and 4 depict four locking latches), a connecting rod 4 and an end portion 5 with at least one locking protrusion 6 (four locking protrusions are shown in FIGS. 1, 2 and 4) on the side surface 7. Plastic fastener made of three inextricably interconnected parts, according to ayney least two of which, cap 1 with locking tabs 3 and the end portion 5, formed alloy, for example, by injection of molten plastic material under pressure into the appropriate mold. The connecting rod 4 can also be molded, but in this case it is made by extrusion. In this case, the connecting rod 4 is made in the form of a tube, the cap 1 is made in the form of a plate, and the locking latches 3 are formed by the wall 8 of the main glass 9 (in figures 1, 2 and 4 it is depicted square with rounded corner ribs 10 forming the locking latches 3) moreover, the plate has an additional cup 11 located inside the main 9, the neck 12 of which is inextricably connected to one of the ends 13 of the tube, the other end of which 14 is inextricably connected to the end part 5. In addition, the plate and the main 9 and the additional 11 glasses can It is arranged coaxially, and can be made between the stiffening rib 15 and the base glass plate 9 and between the latter and an additional glass 11. At the same time, technological holes 16 can be provided in the cap 1 and the end part 5.

The plastic fastener of the floating platform works as follows.

Separate parts of the fastener are molded in appropriate molds by injection of molten plastic under pressure, namely, the product is in the form of coaxially arranged plates, the main 9 and an additional 11 glasses and the product is in the form of an end part 5 with at least one locking protrusion 6 on the side surface 7, a tube is made by extrusion, cut to a predetermined size, and then its ends 13 and 14 are welded, respectively, with the neck 12 of the additional cup 11 and the end part 5 of the fastener with the formation of inextricable compounds. After manufacturing the fastener, it is inserted into the eyes of the floating elements (not shown in the drawings), turned with a key and, using the locking tabs 6 and the locking latches 3, reliably connect the floating elements to a single floating platform.

This technical solution due to the implementation of the fastener component of individual parts allows to increase its reliability by improving the quality of the casting of individual small parts in the molds of a smaller size, to ensure the accuracy of casting when choosing the specified dimensions of the walls of the fastener, to exclude the use of expensive and bulky extrusion blow molding equipment molding, thereby reducing the cost of equipment, reduce the complexity of manufacturing and material costs, and also eliminate the need for replacement to the whole element, but only that part of it that may have a defect.

Claims (3)

1. Plastic fastening element of the floating platform, comprising a hat with at least one key slot and at least two locking latches, a connecting rod and an end part with at least one locking protrusion on the side surface, characterized in that it is made of three inextricably interconnected parts, at least two of which, the cap with the locking latches and the end part, are molded, while the connecting rod is made in the form of a tube, the cap is made in ide plates, the retaining clips are formed by the wall of the primary nozzle, and the plate is located inside the main extra glass, the neck of which are inseparably connected to one end of the tube, the other end of which is inseparably connected with an end portion. 2. The plastic fastener of the floating platform according to claim 1, characterized in that the plate and the main and additional glasses are located coaxially. 3. The plastic fastener of the floating platform according to claim 1 or 2, characterized in that between the plate and the main glass and between the last and additional glass made stiffeners.

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