CN211473355U - Height-adjustable mortise-tenon joint node - Google Patents

Abstract

The utility model discloses a height-adjustable's mortise and tenon joint node, including the pole setting steel pipe on install central fourth of the twelve earthly branches groove socket the pole setting steel pipe on be provided with the external screw thread the pore wall of the centre bore of central fourth of the twelve earthly branches groove socket on be provided with the internal thread, the pole setting steel pipe pass through the internal thread threaded connection of external screw thread and central fourth of the twelve earthly branches groove socket, the wall thickness of pole setting steel pipe for increase 0.5mm on the wall thickness basis of the smooth pole setting steel pipe of standard. The mortise and tenon socket of the utility model can be adjusted in height, the operation space can be flexibly changed, and the mortise and tenon socket is convenient for construction operation with workers; the problems of installation misalignment or horizontal rod installation inclination caused by scaffold processing errors or corrosion do not exist; if the height is adjusted during the construction, the height can be adjusted directly at two sides without disassembly.

Description

Height-adjustable mortise-tenon joint node

Technical Field

The utility model relates to a mortise and tenon joint node among mortise and tenon steel pipe scaffold especially relates to a mortise and tenon joint node of high adjustable in mortise and tenon steel pipe scaffold.

Background

The scaffold is a supporting system which is erected for workers to operate and solve vertical and horizontal transportation on a construction site, and is a temporary operating platform which is erected for meeting the requirements of construction operation. The scaffold not only needs to satisfy the needs of intensity, rigidity and stability, but also requires simple structure, easy dismouting and transport convenience. The common fastener formula scaffold frame, bowl knot formula scaffold frame, dish knot formula scaffold frame, wheel knot formula scaffold frame etc. that have in the existing market. The existing scaffold has certain defects in economy, applicability and safety. Although the types and the related specifications of the existing scaffolds are more, the collapse accidents of the scaffolds in the building engineering still frequently occur, and great potential safety hazards exist.

The tenon-and-mortise structure adopts a concave-convex joint mode: the convex part is called tenon (or tenon), and the concave part is called mortise (or mortise, mortise). The frame body of the mortise and tenon steel pipe scaffold is shown in the figure and mainly comprises upright steel pipes 1, cross rod steel pipes 4 and a central mortise slot socket 3, all components are mutually connected and stressed together to form a reasonable system. The using process is as follows: the central mortise slot socket and the upright steel pipe 1 are connected by welding to form a whole, the cross rod tenon 5 and the mortise slot 2 are in an inverted trapezoid shape with a wide upper part and a narrow lower part, and the cross rod tenon is inserted into the mortise slot from the upper part to the lower part. The mortise and tenon type scaffold has the advantages of being multiple, overcoming the defects of various existing scaffolds, and ensuring that the scaffold is safely and conveniently used in various projects. Is worthy of being popularized in a large range in engineering. However, the central mortise slot socket in the mortise and tenon scaffold and the upright steel tube 1 are welded and connected into a whole, so that the central mortise slot socket cannot move up and down freely, and a great deal of invariance can be brought when the height of the cross rod steel tube is adjusted according to the construction requirement. Therefore, a highly adjustable mortise-tenon joint node is urgently needed.

Common types of scaffolding are: a fastener-type scaffold; a bowl buckle type scaffold; a door type scaffold; a coil buckle type scaffold; wheel buckle type scaffold. However, they have the disadvantages of easy loss of scattered fasteners, low bearing capacity, no flexibility in size fixation, high price, high requirement on a base layer and the like.

The method is mentioned in two articles of 'comparative analysis of mortise and tenon type scaffold and other scaffold performances' and 'experimental research and mechanical performance analysis of mortise and tenon type scaffold': the mortise and tenon scaffold at the present stage has the advantages of reasonable structure, strong stability, good stress performance, safety, reliability, multifunction, high efficiency, less maintenance and the like. However, at the nodes of the mortise and tenon scaffold at the present stage, the mortise and tenon sockets are welded on the steel pipes, so that the working space is limited, the working space is fixed, the working space cannot be freely adjusted, and inconvenience is brought to constructors. Meanwhile, because the processing defects or the precision can not meet the requirements, the butt joint in the horizontal direction is inaccurate or not firm, and certain potential safety hazards exist.

Disclosure of Invention

The utility model aims to overcome the not enough of prior art, provide a height-adjustable's mortise-tenon joint node, this node is practical high-efficient, operates simple and conveniently more.

In order to achieve the above purpose, the utility model discloses a technical scheme is:

the utility model discloses a height-adjustable's mortise and tenon joint node, including the pole setting steel pipe on install central fourth of the twelve earthly branches groove socket the pole setting steel pipe on be provided with the external screw thread the pore wall of the centre bore of central fourth of the twelve earthly branches groove socket on be provided with the internal thread, the pole setting steel pipe pass through the internal thread threaded connection of external screw thread and central fourth of the twelve earthly branches groove socket, the wall thickness of pole setting steel pipe for increase 0.5mm on the wall thickness basis of the smooth pole setting steel pipe of standard.

The utility model discloses following beneficial effect has: the mortise and tenon socket can be adjusted in height, the operation space can be flexibly changed, and the mortise and tenon socket is convenient for construction operation with workers; the problems of installation misalignment or horizontal rod installation inclination caused by scaffold processing errors or corrosion do not exist; if the height is adjusted during the construction, the height can be adjusted directly at two sides without disassembly.

The utility model relates to a tenon fourth of twelve earthly branches connected node with adjustable height is simple high-efficient, and the security is high, is convenient for adjust advantages such as. Compared with the connecting nodes of other scaffolds, the scaffold has the advantages that the height can be adjusted without disassembly, the operation is simple, and the use of workers is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a conventional mortise-tenon joint node;

fig. 2 is the utility model discloses a height-adjustable's mortise-tenon joint structure schematic diagram.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses an improve on current mortise-tenon joint node's basis, according to the mechanical principle of nut and screw rod work, add the screw thread at pole setting steel pipe and central mortise slot socket, make central mortise slot socket adjust from top to bottom. Namely, an external thread is processed on the outer side surface of the original smooth upright rod steel pipe, and an internal thread is added on the inner surface (the contact surface with the upright rod steel pipe) of the central mortise slot socket to ensure that the internal thread is matched with the external thread of the upright rod steel pipe. Therefore, the effect of adjusting the height of the mortise-tenon joint node can be achieved.

Based on above principle, as shown in the accompanying drawing the utility model discloses a height-adjustable's mortise and tenon joint node, including pole setting steel pipe 1 on install central mortise slot socket 3 pole setting steel pipe 1 on be provided with the external screw thread central mortise slot socket's the pore wall on the centre bore be provided with the internal thread, pole setting steel pipe 1 through the internal thread threaded connection of external screw thread and central mortise slot socket. In order to ensure safety, the wall thickness of the upright steel pipe 1 is increased by 0.5mm on the basis of the wall thickness of the existing standard smooth upright steel pipe (see the specification of the steel pipe section geometric characteristics in annex B of the safety technical specifications (JGJ-130-2011) of the steel pipe scaffold for building construction). Such as: the dimensions of a commonly used vertical pole steel pipe, 48.3mm x 3.6mm (outer diameter of the vertical pipe x wall thickness), were increased to 48.3mm x 4.1 mm.

Claims (1)

1. Height-adjustable's mortise-tenon joint node, including the pole setting steel pipe on install central mortise slot socket, its characterized in that: the pole setting steel pipe on be provided with the external screw thread the pore wall of center mortise slot socket's centre bore on be provided with the internal thread, the pole setting steel pipe pass through the internal thread threaded connection of external screw thread with center mortise slot socket, the wall thickness of pole setting steel pipe increase 0.5mm for on the wall thickness basis of smooth pole setting steel pipe.

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