CN111980172A - Mortise and tenon self-locking type column-column connecting node capable of being unlocked - Google Patents

Abstract

The invention discloses an unlockable mortise and tenon self-locking post-column connection node, which is used for connecting an upper module unit and a lower module unit. The column-column connection method can be applied to the connection of corner modular units, edge modular units and intermediate modular units. The upper end of the module column of the lower module unit is welded with an inner box through the connecting plate, and the lower end of the module column of the upper module unit is welded with an outer box. During the connection process, the tenon welded on the action plate in the inner box will be drawn into the pre-set tenon hole on the outer box under the thrust of the spring, thereby completing the column-column connection of the upper and lower modular units. The self-locking connection node can realize reliable connection only by inserting the upper and lower modules at the corresponding positions close to each other, and no additional connection operation is required. The invention can realize building industrialization, and has the advantages of speeding up the construction progress, energy saving and environmental protection.

Description

An unlockable mortise and tenon self-locking column-column connection node

technical field

The invention belongs to the technical field of architectural design, and more particularly relates to a mortise-and-mortise self-locking column-column connection node of a modular steel structure building.

Background technique

The reliable connection between the upper modular unit and the lower modular unit of the modular steel structure is very important for the mechanical performance of the entire modular steel structure building. The traditional connection between modular units is generally bolted or welded, but there are some problems in the connection between the two modular units. First, the on-site bolt connection and weld connection will increase the workload on site; secondly, these two types of joints require a certain amount of space for operation during the connection process, but for integrated modules that have completed interior decoration such as partition walls and floor slabs , which cannot provide operating space for bolted and welded connections. For example, the central column node of the modular steel structure has the characteristics of "eight columns and sixteen beams", and the existence of multi-faceted partition walls and floor components makes the traditional bolt connection and weld connection basically impossible. On the other hand, it is difficult for traditional bolted and welded connections to be removed without destroying the integrity of the modular unit itself. Therefore, adopting a node form that does not conflict with the modular unit components and interior decoration and can be easily unlocked is the key to solving the problem of modular steel structure connection nodes.

SUMMARY OF THE INVENTION

In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a mortise-and-mortise self-locking column-column connection node applied to a modular steel structure building. This connection method does not conflict with the floor, partition walls and other components of the modular unit, as well as the internal decoration. It only needs to hoist the factory prefabricated upper and lower modular units to the site, and insert them at the corresponding positions to achieve reliable connection. No additional connections are required. operate.

The technical scheme of the present invention is as follows:

An unlockable mortise and tenon self-locking column-column connection node is mainly composed of a lower module column 1, an upper module column 2, an inner box 3 and an outer box 4. The lower module column 1 is a square steel pipe column, and the lower module column 1 is a square steel pipe column. The upper part of the module column 1 is connected with the connecting plate 12 provided at the bottom of the inner box 3 through the welding seam;

The inner box 3 includes an inner box frame 5, a connecting steel pipe 6, a gasket 7, an action plate 8, a limit stop 9, a tenon 10, an action spring 11, a connection plate 12 and a limit plate 13; the two action plates 8 pass through The limit block 9 is limited and fixed, and there is a distance between the two action plates 8; the action plate 8 is provided with a through hole for the connecting steel pipe 6 to pass through; the connecting steel pipe 6 located between the two action plates 8 is sleeved with an action spring 11 And the gasket 7, the gasket 7 is located at both ends of the action spring 11; the tenon 10 is fixed on the outer surface of the action plate 8; the connecting plate 12 is welded to the lower end of the inner box frame 5, and the limit plate 13 is welded on it; the inner box frame A circular hole is provided on the 5 to facilitate the installation of the connecting steel pipe 6 that allows the action plate 8 to produce directional slip; the inner box frame 5 is provided with a rectangular opening, so that the tenon 10 welded on the action plate 8 loses its limit stop on the action plate 8 Under the restriction of the block 9, it slides to both sides under the thrust of the action spring 11 and the washer 7; the limit plate 13 on the connecting plate 12 prevents the limit stop 9 pushed down by the trigger plate 16 from moving at will;

The lower end of the upper module column 2 is welded with an outer box 4; the outer box 4 includes an outer box frame 14, a tenon hole 15 and a trigger plate 16; the outer box frame 14 is provided with a position corresponding to the tenon 10 on the inner box 3 There is a tenon hole 15, and a trigger plate 16 is welded on the upper end of the outer box 4.

The beneficial effects of the invention: the tenon-mortise self-locking connection node can greatly reduce the construction workload on site and speed up the construction progress of the modular steel structure, the node transmits force clearly, the inner box is equivalent to a plug-in, and The fit of the outer box can transmit the shear force, and the connection between the tenon and the tenon hole can resist the pulling force generated by the module unit during use. This kind of node also has the advantage of being unlockable, and the unlocking method is simple and easy to operate, so The proposed unlockable mortise-and-mortise self-locking connection node has high practical value and is worthy of promotion.

Description of drawings

Fig. 1 is the connection schematic diagram of two adjacent frame columns up and down according to an embodiment of the present invention;

2 is a schematic structural diagram of a frame column in an upper module provided by an embodiment of the present invention;

3 is a schematic diagram of the overall structure of an outer box provided by an embodiment of the present invention;

4 is a schematic structural diagram of a frame column in a lower module provided by an embodiment of the present invention;

5 is a schematic diagram of the overall structure of an inner box provided by an embodiment of the present invention;

6 is an overall schematic diagram of a substructure in a frame of an inner box according to an embodiment of the present invention;

7 is a schematic diagram of an inner box assembly structure required for connection of side and middle modular units according to an embodiment of the present invention;

8 is a schematic diagram of the overall structure of a module unit provided by an embodiment of the present invention;

FIG. 9 is a schematic diagram of an assembly of an upper module and a lower module according to an embodiment of the present invention.

In the figure: 1- lower module column; 2- upper module column; 3- inner box; 4- outer box; 5- inner box frame; 6- connecting steel pipe; 7- gasket; 8- action plate; 9- limit Block; 10-tenon; 11-action spring; 12-connecting plate; 13-limiting plate; 14-outer box frame; 15-tenon hole; 16-triggering plate.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and technical solutions.

As shown in Figures 1 to 9, an unlockable mortise and tenon self-locking column-column connection node is mainly composed of a lower module column 1, an upper module column 2, an inner box 3 and an outer box 4. The module column 1 is a square steel pipe column, and the upper part of the lower module column 1 is connected to the connecting plate 12 provided at the bottom of the inner box 3 through a welding seam;

The inner box 3 includes an inner box frame 5, a connecting steel pipe 6, a gasket 7, an action plate 8, a limit stop 9, a tenon 10, an action spring 11, a connection plate 12 and a limit plate 13; the two action plates 8 pass through The limit block 9 is limited and fixed, and there is a distance between the two action plates 8; the action plate 8 is provided with a through hole for the connecting steel pipe 6 to pass through; the connecting steel pipe 6 located between the two action plates 8 is sleeved with an action spring 11 And the gasket 7, the gasket 7 is located at both ends of the action spring 11; the tenon 10 is fixed on the outer surface of the action plate 8; the connecting plate 12 is welded to the lower end of the inner box frame 5, and the limit plate 13 is welded on it; the inner box frame A circular hole is provided on the 5 to facilitate the installation of the connecting steel pipe 6 that allows the action plate 8 to produce directional slip; the inner box frame 5 is provided with a rectangular opening, so that the tenon 10 welded on the action plate 8 loses its limit stop on the action plate 8 Under the restriction of the block 9, it slides to both sides under the thrust of the action spring 11 and the washer 7; the limit plate 13 on the connecting plate 12 prevents the limit stop 9 pushed down by the trigger plate 16 from moving at will;

The lower end of the upper module column 2 is welded with an outer box 4; the outer box 4 includes an outer box frame 14, a tenon hole 15 and a trigger plate 16; the outer box frame 14 is provided with a position corresponding to the tenon 10 on the inner box 3 There is a tenon hole 15, and a trigger plate 16 is welded on the upper end of the outer box 4.

The limiting blocks 9 are a pair of rectangular-section thin steel plates.

The tenon 10 is a steel block with a rectangular section, and two pairs are provided, one on each side.

The connecting steel pipes 6 are hollow circular steel pipes with a total of six.

The number of the action springs 11 and the washers 7 is six and twelve respectively.

The trigger plate 16 is a steel plate with a rectangular section, and there are two pieces in total.

The limiting plate 13 is a steel plate with a rectangular section, and there are four pieces in total.

The action plate 12 is a steel plate with a rectangular section, and there are two pieces in total.

When in use, the prefabricated modular unit in the factory is hoisted to the site, wherein the outer box 4 is welded to the lower end of the upper module column 2 , and the inner box 3 is welded to the upper end of the lower module column 1 . The outer dimension of the inner box 3 corresponds to the hollow dimension of the outer box 4 . During the connection of the modular units, after the trigger plate 16 welded on the top of the outer box 4 contacts the limit stop 9, it will be squeezed under the action of gravity, forcing the limit stop 9 to slide down until The limit stop 9 slides down, and then the action plate 12 is no longer limited. After the inner box 3 is completely inserted into the outer box 4, the action plate 12 will slide to both sides under the action of the action spring 11, thereby driving the welding to its The upper tenon 10 is moved into the pre-set tenon hole 15 on the outer box 4 to complete the connection of the upper and lower modular units.

Claims (8)

1. an unlockable mortise and tenon self-locking post-column connection node is characterized in that, the unlockable tenon and mortise self-locking post-column connection node is mainly composed of a lower module column (1), an upper module column (2 ), an inner box (3) and an outer box (4), the lower module column (1) is a square steel pipe column, and the upper part of the lower module column (1) is connected to the bottom of the inner box (3) through a welding seam The plates (12) are connected; The inner box (3) includes an inner box frame (5), a connecting steel pipe (6), a gasket (7), an action plate (8), a limit stop (9), a tenon (10), and an action spring (11) ), the connecting plate (12) and the limit plate (13); the two action plates (8) are limited and fixed by the limit stopper (9), and there is a distance between the two action plates (8); A through hole is opened for the connecting steel pipe (6) to pass through; the connecting steel pipe (6) located between the two action plates (8) is sleeved with an action spring (11) and a gasket (7), and the gasket (7) is located in the action plate (8). The two ends of the spring (11); the tenon (10) is fixed on the outer surface of the action plate (8); the connecting plate (12) is welded to the lower end of the frame (5) of the inner box, and the limit plate (13) is welded on it; A circular hole is provided on the box frame (5) to facilitate the installation of a connecting steel pipe (6) that allows the action plate (8) to produce directional slip; the inner box frame (5) is provided with a rectangular opening, so that the action plate (8) is welded on the action plate (8). The tenon (10) on the top slides to both sides under the thrust of the acting spring (11) and the washer (7) when the acting plate (8) loses the limiting action of the limit stop (9); the connecting plate (12) The limit plate (13) on the ) prevents the limit block (9) pushed down by the trigger plate (16) from moving at will; The lower end of the upper module column (2) is welded with an outer box (4); the outer box (4) includes an outer box frame (14), a tenon hole (15) and a trigger plate (16); the outer box frame (14) 14) A tenon hole (15) corresponding to the position of the tenon (10) on the inner box (3) is provided, and a trigger plate (16) is welded on the upper end of the outer box (4). 2 . The unlockable mortise-and-mortise self-locking column-column connection node according to claim 1 , wherein a pair of the limit blocks ( 9 ) are formed of rectangular-section thin steel plates. 3 . 3. The unlockable mortise and tenon self-locking post-column connection node according to claim 1 or 2, wherein the tenon (10) is a rectangular section steel block, and two pairs are arranged in total, one on each side right. 4. The unlockable mortise-and-mortise self-locking column-column connection node according to claim 3, characterized in that, the connecting steel pipes (6) are hollow circular steel pipes with a total of six. 5. The unlockable mortise-and-mortise self-locking post-column connection node according to claim 1, 2 or 4, wherein the number of the action spring (11) and the washer (7) is six and ten respectively Two slices. 6. The unlockable mortise-and-mortise self-locking column-column connection node according to claim 5, wherein the trigger plate (16) is a steel plate with a rectangular section, and there are two pieces in total. 7. The unlockable mortise-and-mortise self-locking column-column connection node according to claim 1, 2, 4 or 6, wherein the limiting plate (13) is a steel plate with a rectangular section, and there are four pieces in total. 8 . The unlockable mortise-and-mortise self-locking column-column connection node according to claim 7 , wherein the action plate ( 12 ) is a steel plate with a rectangular section, and there are two pieces in total. 9 .

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