An assembled steel bar mechanical connector equipped with shock-absorbing springs

Abstract

The application discloses an assembled steel bar mechanical connecting piece with damping springs, which comprises a steel bar to be connected, an external connecting box, a circular table support, mechanical engagement teeth, damping springs and a connecting sleeve. The external connecting box is internally provided with the circular table support, and the upper end and the lower end of the external connecting box are both provided with an opening. The circular table support has a certain thickness. The mechanical engagement teeth only allow the steel bar to move in one direction. The damping springs are symmetrically arranged on a plane. Through the circular table support in the external connecting box and the improved mechanical engagement force of the mechanical engagement teeth, the connection between the steel bars on both sides and the connecting piece is enhanced. The damping springs are used to allow the structure to have eccentric conditions between the steel bars during use. When the structure encounters an earthquake, the energy dissipation capacity of the connecting piece can be enhanced, so that the connecting part will not be damaged first.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building structures, in particular to a fabricated steel bar mechanical connector with damping springs. BACKGROUND

[0002] Steel bar connection is a connection method between steel bars. At present, the main connection methods of steel bars are divided into four categories: binding connection, mechanical connection, grouting sleeve connection and welding connection. Steel bar connection should be arranged at a position with small stress in the building structure to avoid damage to the steel bar connector.

[0003] The existing problems of the prior art are as follows:

[0004] The existing fabricated structure steel bar mechanical connection device needs to avoid the main stress part when designing the post-poured area, which causes certain inconvenience to the construction, thereby affecting the efficiency of the fabricated structure connection construction. The existing fabricated structure steel bar mechanical connection device has weak energy dissipation capacity at the connector part when encountering earthquake action or other actions, which is prone to damage to the connector and affects the safety of the user's life and property. SUMMARY

[0005] The purpose of the present application is to provide a fabricated steel bar mechanical connector with damping springs, which uses the improved mechanical engagement force of the external connection box inner circular table support and mechanical engagement teeth to enhance the connection between the two steel bars and the connector. The damping spring allows the structure to have an eccentric condition between the steel bars during use, and at the same time, when encountering earthquake action, the energy dissipation capacity of the connector can be enhanced, so that the connection part will not be damaged first.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] A fabricated steel bar mechanical connector with damping springs, characterized by comprising an upper part to be connected steel bar 1, an upper part steel bar end thread 101, an upper part external connection box 2, an upper part connection box opening 201, an upper part circular table support 3, an upper part support opening 301, an upper part mechanical engagement tooth 4, a fixing bolt 401, a limiting bolt 402, an upper part damping spring 5, a connection sleeve 6, a connection sleeve screw hole 601, a lower part to be connected steel bar 7, a lower part steel bar end thread 701, a lower part external connection box 8, a lower part connection box opening 801, a lower part circular table support 9, a lower part support opening 901, a lower part mechanical engagement tooth 10 and a lower part damping spring 11.

[0008] Preferably, the diameter of the opening at the bottom end of the external connection box is greater than the diameter of the steel bar.

[0009] Preferably, the mechanical engagement tooth limits the steel bar to move in only one direction towards the entering direction of the steel bar.

[0010] Preferably, the mechanical engagement teeth are bolted on the circular platform support, and there are three on the plane, symmetrically distributed.

[0011] Preferably, the shock-absorbing springs are arranged three, uniformly and symmetrically distributed between the circular platform support and the external connecting box.

[0012] Preferably, the internal upper half of the connecting sleeve is threaded in the positive direction, and the lower half is threaded in the reverse direction.

[0013] In the above technical solution, the assembly type steel bar mechanical connector provided by the application with shock-absorbing springs has the following beneficial effects:

[0014] 1. The application uses the mechanical engagement force of the circular platform support and the mechanical engagement teeth in the external connecting box to enhance the connection between the two sides of the steel bar and the connector.

[0015] 2. The application uses the shock-absorbing springs to allow the structure to have an eccentric condition between the steel bars during use, and at the same time, when subjected to earthquake action, the energy dissipation capacity of the connector can be enhanced, so that the connection will not be damaged first. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The structural schematic diagram of the assembly type structural steel bar mechanical connector provided for the embodiment of the application;

[0017] Fig. 2 The structural schematic diagram of the lower connecting box provided for the embodiment of the application;

[0018] Fig. 3 The top view of the lower circular platform support provided for the embodiment of the application;

[0019] Fig. 4 The partial structural schematic diagram of the upper mechanical engagement teeth provided for the embodiment of the application.

[0020] In the drawings:

[0021] 1-upper steel bar to be connected, 101-upper steel bar end thread, 2-upper external connecting box, 201-upper connecting box opening, 3-upper circular platform support, 301-upper support opening, 4-upper mechanical engagement teeth, 401-fixing bolt, 402-limiting bolt, 5-upper shock-absorbing spring, 6-connecting sleeve, 601-connecting sleeve screw hole, 7-lower steel bar to be connected, 701-lower steel bar end thread, 8-lower external connecting box, 801-lower connecting box opening, 9-lower circular platform support, 901-lower support opening, 10-lower mechanical engagement teeth, 11-lower shock-absorbing spring. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0023] The present application is a prefabricated steel bar mechanical connector with damping springs, characterized in that it comprises a steel bar to be connected, an external connecting box, a circular platform support, mechanical engagement teeth, damping springs, and a connecting sleeve.

[0024] Further, the diameter of the opening at the bottom end of the external connecting box is greater than the diameter of the steel bar.

[0025] Further, the mechanical engagement teeth restrict the steel bar to move in only one direction towards the direction of entry of the steel bar.

[0026] Further, the mechanical engagement teeth are bolted to the circular platform support and are symmetrically distributed in three on the plane.

[0027] Further, three damping springs are symmetrically and uniformly distributed between the circular platform support and the external connecting box.

[0028] Further, the connecting sleeve has a positive thread in the upper half and a reverse thread in the lower half.

[0029] Reference Figs. 1 to 4 The construction method of the present application comprises the following steps:

[0030] Step one: prefabricate the prefabricated components with multiple lower steel bars to be connected 7 and the prefabricated components with multiple upper steel bars to be connected 1 in the factory, and transport and hoist them to the site;

[0031] Step two: align the multiple lower steel bars to be connected 7 with the multiple upper steel bars to be connected 1 in the vertical direction of the prefabricated components, and prepare to install the steel bar connector;

[0032] Step three: pass the upper steel bar to be connected 1 through the end opening 201 of the upper external connecting box 2, and punch the upper mechanical engagement teeth 4 and the end opening 301 of the upper circular platform support 3; pass the lower steel bar to be connected 7 through the end opening 801 of the lower external connecting box 8, and punch the lower mechanical engagement teeth 10 and the end opening 901 of the lower support circular platform 9;

[0033] Step four: check whether the upper and lower mechanical engagement teeth are located between the ribs on the surface of the steel bar;

[0034] Step five: align the threaded end 101 of the upper steel bar 1 to be connected and the threaded end 701 of the lower steel bar 7 to be connected with the threaded hole 601 of the connecting sleeve 6, and rotate to connect to the external connecting box 2, 8 and tightly adhere to the surface of the connecting sleeve 6;

[0035] Step six: weld the external connecting box 2, 8 and the surface of the connecting sleeve 6;

[0036] Step seven: pour concrete material in the steel bar connecting area to complete the connection.

[0037] Step eight: repeat the above steps one to seven to complete the overall assembly type structure connection.

[0038] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those of ordinary skill in the art. Therefore, the above figures and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A prefabricated steel bar mechanical connector equipped with a shock-absorbing spring, comprising: The components include upper and lower reinforcing bars to be connected, an external connecting box, a frustum support, mechanical interlocking teeth, a shock-absorbing spring, and a connecting sleeve. The frustum support is located within the external connecting box. The bottom opening diameter of the external connecting box is larger than the diameter of the reinforcing bar. The frustum support has a vertically penetrating support opening, and the top opening diameter is the same as the diameter of the reinforcing bar, allowing the reinforcing bar to pass through and be positioned. The mechanical interlocking teeth are symmetrically distributed in the plane of each frustum support and connected to the frustum support by fixing bolts. The mechanical interlocking teeth are configured to allow only unidirectional movement of the reinforcing bar, and the mechanical interlocking teeth can be fixed... Located between the ribs on the surface of the reinforcing bars to achieve reliable engagement and limiting; the damping springs are arranged symmetrically on the plane between the inner wall of each frustum support and the corresponding external connecting box, and are fixedly connected to the frustum support and the external connecting box by welding, to provide restoring force and energy dissipation capacity when the node is eccentrically displaced; the upper half of the inner part of the connecting sleeve is a positive thread that mates with the threaded end of the upper reinforcing bar, and the lower half is a reverse thread that mates with the threaded end of the lower reinforcing bar; after installation, the external connecting box and the connecting sleeve are welded and fixed, and then integrally cast with the surrounding concrete on site to form an integral connection node.

2. The connector according to claim 1, wherein there are three mechanical meshing teeth in total on the plane, symmetrically distributed.

3. The connector according to claim 1, wherein the shock-absorbing spring is welded to the inside of the frustum support and the external connecting box.

4. The connector according to claim 1, wherein the diameter of the connecting sleeve is the same as the diameter of the outer connecting box.

5. The connector according to claim 1, wherein the diameter of the openings at both ends of the connecting sleeve is consistent with the maximum diameter of the reinforcing bar to be connected.

6. According to claim 1, during construction, check whether the mechanical meshing teeth are located between the ribs on the surface of the reinforcing bar. After installation, weld the outer surface of the external connecting box and the connecting sleeve, and pour concrete material in the reinforcing bar connection area to complete the overall node connection.

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