CN2140403Y - Scaffolding fastener - Google Patents

Abstract

The utility model relates to a clamp. The clamp is provided with a basal body, a movable sheet which is hinged on the basal body, and a clamping device which tightly clamp the basal body and the movable sheet. The clamping device is provided with a locking block. A rotary inclined plane is arranged on the locking block. The rotary inclined plane is meshed with flanges on the movable sheet. The height difference of the rotary inclined plane is used for realizing clamping work. The utility model gets rid of a bolt connection structure in the traditional clamp. The clamp has the characteristics that the clamp does not fear being rusted to death, and the clamp can be quickly installed and disassembled.

Description

Scaffolding fastener

The utility model relates to a kind of anchor clamps of being connected between the steel pipe of builing industry scaffold of being used for, and particularly relates to a kind of quickly assembled and disassembled anchor clamps with auto-lock function.

Traditional scaffold clamp mostly adopts bolt to connect, and in actual use, because the duration of a building is all very long, anchor clamps are subjected to wind and weather for a long time, make it to be easy to get rusty.Because the screw thread of bolt is very thin, there is iron mold to bring very big difficulty slightly, even can't dismantles again to dismounting.When running into situation about can't dismantle, the workpeople have to remove it devastatingly, thereby makes it to scrap.And before each the repeated use, soak, scrub with kerosene again, tapping and silk rolling again, otherwise just can't use.In addition, when mounting or dismounting, nut must rotate more than two weeks, and it is very inconvenient to install and remove.

The purpose of this utility model provides a kind ofly is not afraid of corrosion and installs and removes scaffold clamp rapidly.

Solution of the present utility model is, the self-lock mechanism of Worm wheel transmission mechanism is applied on the existing anchor clamps that adopt bolted scaffold.Specifically, be the cross section that the lock dog in the clamping device of anchor clamps is likened to worm screw, liken live flange portion on the sheet of anchor clamps a tooth of worm gear to, an end of lock dog is hinged on the matrix of anchor clamps.Like this, when the rotation lock dog, can make clamp.

The utility model has removed careful screw connection structure, therefore is not afraid of general getting rusty, and owing to adopt Worm wheel transmission mechanism, thereby have the characteristics rapidly of installing and removing.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a front view of the present utility model.

Fig. 2 is the right view of Fig. 1.

Referring to Fig. 1 and Fig. 2, scaffold clamp of the present utility model has matrix 1, be hinged on the sheet alive 2 on the matrix 1, on the matrix and the sheet of living, have and scaffold rod member 3 matched circular arcs, free end at the sheet 2 of living has a flange portion 4, the bottom 7 of jagged 5, one clamping devices 6 is hinged on the matrix 1 with the universal joint connected mode on flange portion.

Clamping device 6 comprises a bottom 7, neck 8, a lock dog 9 and a manoeuvre portion 10 successively.Wherein bottom 7 can be hemisphere or other structure free to rotate, and the part that cooperates with the bottom on the matrix 1 should adopt corresponding structure.The radial dimension of neck 8 is less than the radial dimension of lock dog 9 and bottom 7.Neck 8 can be inserted in the breach 5.Be provided with on the lock dog 9 one with live body 2 on the spin canting of flange portion engagement, the radian of this spin canting is between 0.5～1.5 π.This spin canting can be spiral camber or straight inclined-plane.On flange portion 4, have a spiral camber that matches with above-mentioned spin canting or straight inclined-plane.Above-mentioned spin canting or revolve curved surface or the difference in height on straight inclined-plane is 2-10mm.

For handiness, the manoeuvre portion in the utility model can be a hexahedron, or has cross-drilled hole 11 on manoeuvre portion, also can be hexahedron (or tetragonal body) and cross-drilled hole structure combining.

For guarantee that clamping device 6 does not withdraw from from breach 5 under clamped condition, the thrust platform (not drawing among the figure) that can prevent that lock dog 9 from skidding off can be set on flange portion 4.The scheme that also can the flange portion 4 by the sheet 2 of will living forms an elevation angle when clamped condition solves the problem that clamping device withdraws from.

Clamping device 6 can be an overall structure, also can be combining structure (as bottom 7 necks 8 are two bodies, are connected as a single entity after assembling again).

When clamping device 6 is an overall structure, its installation process is, on matrix 1, have the through hole 12 of a band stop portions, with pin 13 it is limited to through hole 12 again after clamping device 6 put into through hole 12, preferably adopts gimbal structure between the bottom 7 of clamping device 6 and the stop portions of matrix 1.

Using method of the present utility model is, rod member 3 placed matrix 1 and the sheet 2 of living on circular arc in, again clamping device is inserted in the breach 5 on the flange portion 4, the minimum point that is used in the spin canting on the lock dog 9 is near the inclined-plane minimum point on flange portion 4(or the flange portion 4), use spanner (acting on the hexahedron) or iron staff (inserting in the cross-drilled hole 11) then, rotate manoeuvre portion 10, thereby utilize the degree discrepancy in elevation of said spin canting to realize the clamping of anchor clamps.

Obviously, the utility model is suitable for the anchor clamps of various angles.Though that providing in the accompanying drawing is the embodiment of cross clamp, under the situation that two matrixes are arranged, two matrixes can be with one pivotally connected, and the rotational angle α between two matrixes changes between 0～360 °.Therefore, in not exceeding design scope of the present utility model, can make multiple modification.

Claims (9)

1, a kind of scaffold clamp, have matrix and the sheet alive that is hinged on the matrix, on the matrix and the sheet of living, have and the matched circular arc of scaffold rod member, free end at the sheet of living has a flange portion, on flange portion, have breach, the bottom-hinged of one clamping device also can place in the said breach on matrix, it is characterized in that, said clamping device comprises a bottom successively, a neck, a lock dog and a manoeuvre portion, wherein the bottom is connected with the universal joint that is connected to of matrix, the radial dimension of neck is less than the radial dimension of lock dog and bottom, be provided with a spin canting that meshes with the live body flange portion on lock dog, the radian of said spin canting is between 0.5～1.5 π.

According to the said scaffold clamp of claim 1, it is characterized in that 2, said spin canting is a spiral camber.

According to the said scaffold clamp of claim 1, it is characterized in that 3, said spin canting is straight inclined-plane.

According to the said scaffold clamp of claim 2, it is characterized in that 4, said flange portion has a spiral camber that matches with said spin canting.

According to the said scaffold clamp of claim 3, it is characterized in that 5, said flange portion has a straight inclined-plane that matches with said spin canting.

6, according to the scaffold clamp in the claim 1 to 5 any, the difference in height that it is characterized in that said inclined-plane or curved surface is 2-10mm.

According to the said scaffold clamp of claim 6, it is characterized in that 7, said manoeuvre portion is one to have the hexahedron of cross-drilled hole.

According to the said scaffold clamp of claim 1, it is characterized in that 8, said flange portion has one and prevents that lock dog from skidding off the thrust boss of said breach.

According to the said scaffold clamp of claim 1, it is characterized in that 9, said matrix has two, two matrixes are pivotally connected with one, and the rotational angle between two matrixes is 0～360 °.

Images