Quick butt joint clamp connector for steel bar or steel pipe
A technology of butt joint clamps and connectors, which is applied in the field of scaffolding, formwork support frame steel pipe connection, quick butt joint clamp connectors, and mechanical connection of steel bars. Difficult to match and other problems, to achieve the effect of reliable connection fastening, prolonging service life and increasing friction
Active Publication Date: 2016-09-21
CHINA COAL BUILDING & INSTALLATION ENG GRP
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Problems solved by technology
[0002] Existing types of steel mechanical connection joints include: straight thread, tapered thread, and sleeve extrusion. The main disadvantages in construction are: slow construction speed, cumbersome threading of steel bars on site, steel wire head and sleeve inner wire The fit is poor, the steel wire heads are not easy to tighten each other at the center of the sleeve, the operators require high skills, and the installation torque is not up to standard, etc. The difficulties encountered in solving these problems mainly include: on-site processing and installation. Low quality, unstable sleeve quality, difficult matching of on-site processing wire head and factory-processed sleeve inner wire; butt joint fasteners are used for the butt connection of the existing steel pipe scaffolding and template support frame steel pipes, and the existing problems are: the two steel pipes being connected Poor coaxiality, low bearing capacity of the docking pole, easy to cause instability of the docking pole, and easy to cause safety accidents
These shortcomings and problems have brought great inconvenience to the workers on-site construction, and also increased resource cost consumption and time loss
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[0016] Such as Figure 1-3 As shown, the quick butt clamp joint device for steel bars or steel pipes of the present invention includes an outer sleeve 1, an inner sleeve 2 and wedge-shaped clamping flaps 3, and the two ends of the outer sleeve 1 are provided with a convex connection groove, two The small-diameter grooves of the convex-shaped connecting grooves are oppositely arranged and a blind plate 4 is arranged in the middle. An inner sleeve 2 is threadedly installed in each large-diameter groove of the convex-shaped connecting grooves, and the outer end surface of the inner sleeve 2 A tightening and loosening keyway 5 is provided, and a plurality of wedge-shaped clamping petals 3 are movably installed in each inner sleeve 2, and a plurality of wedge-shaped clamping petals 3 form a circular frustum with a through hole in the middle, and the bottom of the circular frustum faces inward. The contact surfaces of the plurality of wedge-shaped clamping petals 3 and the inner sle...
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The quick butt clamping connector for steel bars or steel pipes of the present invention belongs to the technical field of building construction; the technical problem to be solved is to provide a quick butt joint clamping connector for steel bars or steel pipes that is convenient to connect, fast and accurate; the adopted technical scheme is: Both ends of the outer sleeve are provided with a convex-shaped connecting groove, the small-diameter grooves of the two convex-shaped connecting grooves are arranged opposite to each other and a blind plate is provided in the middle, and a large-diameter groove of each convex-shaped connecting groove is threaded. The inner sleeve, the outer end surface of the inner sleeve is provided with a tightening and loosening keyway, and each inner sleeve is equipped with a plurality of wedge-shaped clamping petals, and the multiple wedge-shaped clamping petals form a circular frustum with a through hole in the middle and a circular frustum The bottom surface of the inner sleeve is inward, and the contact surface between a plurality of wedge-shaped clamping lobes and the inner sleeve is a matching inclined surface, and the outer diameter of the circular ring on the bottom surface of the conical body composed of multiple wedge-shaped clamping lobes is larger than the diameter of the small-diameter groove of the convex-shaped connecting groove; the present invention mainly It is used for the mechanical connection of steel bars and the steel pipe connection of scaffolding and formwork support frames.
Description
technical field [0001] The invention discloses a quick-joint clamp joint for steel bars or steel pipes, which belongs to the technical field of building construction, and in particular relates to the mechanical connection technology of steel bars and the steel pipe connection technology of scaffolding and formwork support frames. Background technique [0002] Existing types of steel mechanical connection joints include: straight thread, tapered thread, and sleeve extrusion. The main disadvantages in construction include: slow construction speed, cumbersome threading of steel bars on site, steel wire heads and sleeve inner wires. The fit is poor, the steel wire heads are not easy to tighten each other in the center of the sleeve, the operator requires high skills, and the installation torque is not up to standard. Low, unstable quality of the sleeve, difficult to match the on-site processing wire head with the factory-processed sleeve inner wire; the butt connection of the ex...
Claims
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IPC IPC(8): E04G7/20E04G17/04E04C5/16
Inventor李建文
OwnerCHINA COAL BUILDING & INSTALLATION ENG GRP