RU27131U1 - CLAMPING DEVICE - Google Patents

Description

Clamping device

The utility model relates to the field of construction of monolithic reinforced concrete and concrete structures and is designed to quickly connect and disconnect formwork panels.

Known clamping device 1, made in the form of a L-shaped tetrahedral rod with a rectangular cross-section, placed in at least two brackets mounted on the outer surface of the skin of each of the shields along its longitudinal side in line with the brackets of the adjacent shield, each the bracket has a surface parallel to the outer surface of the shield skin, and two side walls connected to the shield skin. A disadvantage of the known design of the clamp is the low reliability of the connection of the formwork sheathing panels.

Known clamping device 2, adopted as the closest analogue, containing sliding L-shaped brackets pivotally attached to the support beam and overlapped, a turning mechanism made in the form of an eccentric with a control lever and with a pivot pin moving in the longitudinal groove of the support beam U -shaped section. The brackets have clamping shafts located at an angle of 90 ° to the sliding elbows and made in the form of teeth interacting with the profile formwork elements, and the sliding elbows of the clamping cheeks in a closed position form an obtuse angle to each other on the formwork side. The disadvantage of this design is the complexity of its manufacture and lack of reliability in operation.

The objective of the utility model is to simplify the design, increase the usability and reliability of the formwork in operation.

Z002 2S26V

E 04 G 17/07

having clamping cheeks and sliding knees, made with the possibility of moving relative to each other, and the mechanism of their fixation, a longitudinal through groove is made in one sliding knee, into which the second knee is inserted and has the ability to move in it, and the fixing mechanism is made in the form of a wedge inserted into holes (slots) made in sliding elbows.

In a preferred embodiment, the sliding elbows may have thrust ledges for contacting each other when the brackets are moved until their holes are fully aligned, and the anvil of the wedge may be thickened with a rounded surface.

The essence of the utility model is illustrated by the drawings, in which Fig. 1 shows the clamping assembly, in Fig. 2 - the first clamping bracket (with a groove), in Fig. 3 - view along arrow A in Fig. 2; in Fig.4 the second clamping bracket, in Fig.Z is a view along arrow B in Fig.4; figure 6 - wedge; Fig.7 is a view along arrow C in Fig.6.

The clamping device (see figure 1) consists of two L-shaped brackets 1 and 2. Each bracket has a clamping jaw 3, 4 and a sliding elbow 5, 6, which are located at right angles to each other. To form clamping areas, the clamping cheeks have teeth 7 that are inserted into the corresponding reamers of hollow profiles, which are mounted on the formwork panels (not shown in the figures). In the sliding knee 6 of one of the brackets 2, a through groove 8 is made (see FIG. 2), into which the knee 5 of the second bracket 1 is inserted and has the ability to move in it. In each of the knees 5, 6 perpendicular to the plane of the groove 8 is made one through hole-slots 9, 10 (see figure 2, 4), which are able to combine when moving one knee 5 or 6 in the groove of the other. On the inner surface of the knees 5, 6 between the clamping cheeks 3, 4 are ledges 11, 12 (Fig 3,5). When the brackets 1, 2 are shifted until the holes-slots 9, 10 are completely aligned, they abut against each other

ledges 11, 12, and further shifting does not occur, i.e. thereby restricting the movement of the brackets 1, 2. To prevent the movement of the brackets 1 and 2 in opposite directions, a wedge 13 having an anvil 14 is inserted into the openings-slots 9 and 10 (see Fig. 1,6,7). For reliable clamping of the clamping device, the wedge surface must have an optimal angle of inclination.

The clamping device is as follows.

Brackets 1 and 2 are brought to the combined profiles of the formwork panels, while one of the knees 5 is inserted into the groove 8 of the other. The brackets 1 and 2 are shifted towards each other until the inner surface of the clamping jaws 3 and 4 is completely in contact with the outer surface of the shield profiles. In this case, a partial combination of the holes-slots 9 and 10, made in the elbows 5, 6. In the combined through slot, insert the wedge 13 and strike on its anvil 14 ossh1; fixation is made. Thus, the profile of the formwork panels prevents the opposite movement of the brackets 1 and 2, and the wedge 13 prevents movement in opposite directions. When the wedge 13 is knocked out, the brackets 1 and 2 release the plate profiles and are removed from the formwork.

The implementation of the clamping device according to the claimed utility model simplifies the process of mounting and dismantling the formwork, resulting in increased labor productivity.

Sources of information:

1. Patent RU 2068480, MShS7 E 04 G 17/06, publication October 27, 1996.

2. Patent RU 2042774, IPC7 E 04 G 17/04, publication August 27, 1995 (prototype).

Claims (3)

1. The clamping device, including two L-shaped sliding brackets having clamping cheeks and sliding knees, made with the possibility of moving relative to each other, and their locking mechanism, characterized in that in one sliding knee is made a longitudinal through groove in which is placed the second knee can be moved in it, and the locking mechanism is made in the form of a wedge made with the possibility of insertion into the holes made in the sliding knees.  2. The clamping device according to claim 1, characterized in that the sliding elbows have each persistent ledge, these ledges are designed to contact with each other when moving the brackets to fully align their holes. 3. The clamping device according to claim 1 or 2, characterized in that the wedge has an anvil made thickened with a rounded surface.