CN220100188U

CN220100188U - Assembled primary and secondary wood beam top parallel and level connection's mortise and tenon joint

Info

Publication number: CN220100188U
Application number: CN202320667735.4U
Authority: CN
Inventors: 欧阳金友; 胡振华; 邱勇; 张佳琳; 陈潘; 陈培潮; 王迪
Original assignee: China Construction Science and Technology Group Co Ltd
Current assignee: China Construction Science and Technology Group Co Ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-11-28
Anticipated expiration: 2033-03-24

Abstract

The utility model provides a mortise and tenon joint for flush connection of tops of assembled primary and secondary beams, which comprises a wood main beam and two wood secondary beams, wherein two sides of the middle top of the wood main beam are respectively provided with a dovetail mortise and a T-shaped female mortise, the lap joint ends of the two wood secondary beams are respectively provided with a dovetail tenon and a T-shaped male tenon, the lap joint ends of the two wood secondary beams are respectively overlapped at the middle top position of the wood main beam, the dovetail tenon is embedded in the dovetail mortise, and the T-shaped male tenon is embedded in the T-shaped female mortise. The mortise and tenon joint skillfully utilizes the dovetail mortise and tenon mortise of the T-shaped male and female, has less weakening of the wood main beam, forms a continuous wood secondary beam, is safer and more reliable, has low construction difficulty, and has the advantages of quick assembly, replacement and the like. Meanwhile, the heights of the main beams and the secondary beams can be reduced by the connected main beams and the connected secondary beams Liang Pingji.

Description

Assembled primary and secondary wood beam top parallel and level connection's mortise and tenon joint

Technical Field

The utility model belongs to the field of assembled wood structure buildings, and particularly relates to a mortise and tenon joint for flush connection of tops of assembled primary and secondary wood beams.

Background

The wood is a renewable material which is green, environment-friendly, low-carbon and easy to process and form, has good heat preservation and insulation properties and shock resistance, and has excellent instantaneous impact load resistance and periodic load resistance.

I have a long history of wood structure construction, and the mortise and tenon joint is one of the characteristics of traditional wood structure construction in China. wood is planted into orifices to be tenons, and the deficiency is planted into the mortise to be mortise and tenon, which is a direct expression of the ancient yin-yang philosophy of China. The mortise and tenon joint refers to a connecting mode that a convex tenon on one component is combined with a concave mortise and tenon on the other component, and common mortise and tenon joints comprise a male tenon, a female tenon, a straight tenon, a steamed bread tenon, a pin tenon, a mantis tenon, a dovetail tenon and the like.

The connection nodes of the primary and secondary wood beams popular in the building industry at present mainly comprise two types, one type is a traditional cross lap joint male and female tenon in China, and the main defects are as follows: 1. the heights of the secondary beams at the joints are weakened by nearly half, the tops of the primary beams and the secondary beams are not level, and the net height of the building space is occupied; 2. the main beam section is seriously weakened, and the main beam section needs to be increased, so that the material waste is caused. The other is a steel-wood node popular abroad, a T-shaped steel plate is slotted and inserted in the middle of the end part of the secondary beam, bolt holes are formed in the corresponding positions of the main beam and the secondary beam, and the steel-wood node is completely connected by high-strength bolts. The main defects are that the transverse lines of the wood beams are pulled due to the high-strength bolts, the wood beams are easy to split and damage, and the performance of the wood materials cannot be fully exerted.

Disclosure of Invention

The utility model aims to provide a mortise and tenon joint for flush connection of top of an assembled primary and secondary wood beam, which can form a continuous wood secondary beam on the premise of weakening the section of a main beam as little as possible, and the joint is not easy to trip, so that the joint is safer and more reliable, the height of the primary and secondary beam can be reduced, the construction difficulty is low, and the rapid assembly can be realized.

The utility model discloses a mortise and tenon joint for flush connection of top of an assembled primary and secondary wood beam, which comprises a wood main beam and two wood secondary beams, wherein two sides of the middle top of the wood main beam are respectively provided with a dovetail mortise and a T-shaped female mortise, and the T-shaped female mortise is positioned at the outer side edge of the dovetail mortise; the lap joint ends of the two wood secondary beams are respectively provided with a dovetail tenon and a T-shaped male tenon, wherein the dovetail tenons protrude out of the outer side edges of the T-shaped male tenons; the overlap joint ends of two wood secondary beams overlap joint respectively in the middle top position of wood girder, and, the forked tail tenon embedding in the forked tail mortise, the public tenon of T type embedding in the female mortise of T type.

Further, the bottom of the female mortise of T type is equipped with half forked tail mortise, the bottom of the public tenon of T type is equipped with half forked tail tenon, half forked tail tenon embedding half forked tail mortise is in.

Further, the top surface of the dovetail tenon of the wood secondary beam is flush with the top surface of the wood main beam.

Further, the joint of the dovetail tenon and the dovetail mortise, the joint of the T-shaped male tenon and the T-shaped female mortise and the joint of the half dovetail tenon and the half dovetail mortise are all coated with adhesives.

Compared with the prior art, the utility model has the beneficial effects that:

the mortise and tenon joint skillfully utilizes the dovetail mortise and tenon mortise of the T-shaped male and female, has less weakening of the wood main beam, forms a continuous wood secondary beam, is safer and more reliable, has low construction difficulty, and has the advantages of quick assembly, replacement and the like. Meanwhile, the heights of the main beams and the secondary beams can be reduced by the connected main beams and the connected secondary beams Liang Pingji.

In addition, compared with the steel-wood node connected by bolts and steel plates which are popular in the industry at present, the mortise-tenon joint can avoid the problem that the beam end is easy to be damaged such as transverse grain splitting and the like.

Drawings

FIG. 1 is an exploded view of a mortise and tenon joint in flush connection with the top of an assembled primary and secondary wood beam according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a mortise-tenon joint formed by flush connection of top parts of assembled primary and secondary wood beams according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the overlapping position of the wood main beam in the mortise and tenon joint shown in FIG. 1;

fig. 4 is a schematic structural view of the overlapping ends of the wood secondary beams in the mortise and tenon joint shown in fig. 1.

The figure indicates:

1-wood girder, 11-forked tail mortise, 12-T-shaped female mortise, 13-half forked tail mortise, 2-wood secondary girder, 21-forked tail tenon, 22-T-shaped male tenon and 23-half forked tail tenon.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., are based on those shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, a mortise-tenon joint for flush connection of top of an assembled primary and secondary wood beam provided in this embodiment is shown, which includes a primary wood beam 1 and two secondary wood beams 2.

Please refer to fig. 3, two sides of the middle top of the wood girder 1 are respectively provided with a dovetail mortise 11 and a T-shaped female mortise 12, wherein the T-shaped female mortise 12 is located at the outer side of the dovetail mortise 11. Referring to fig. 4, the overlapping ends of the two wood secondary beams 2 are respectively provided with a dovetail tenon 21 and a T-shaped male tenon 22, wherein the dovetail tenon 21 protrudes out of the outer side edge of the T-shaped male tenon 22. Further, a half dovetail mortise 13 is formed in the bottom end of the T-shaped female mortise 12, and a half dovetail 23 is formed in the bottom end of the T-shaped male tenon 22.

The overlap joint end of two wood secondary beams 2 overlap joint respectively in the middle top position of wood girder 1, and after the overlap joint of main secondary beam, the forked tail tenon 21 imbeds in forked tail mortise 11, and the public tenon 22 of T type imbeds in the female mortise 12 of T type, and half forked tail tenon 23 imbeds in half forked tail mortise 13.

Further, the top surface of the dovetail joint 21 is flush with the top surface of the wood main beam 1.

Further, the joint of the dovetail tenon 21 and the dovetail mortise 11, the joint of the T-shaped male tenon 22 and the T-shaped female mortise 12, and the joint of the half dovetail tenon 23 and the half dovetail mortise 13 are all coated with adhesives, so that the joint is not easy to be out of tenons.

The mounting process of the mortise and tenon joint of this embodiment is as follows:

1. installing a wood girder 1;

2. the inner walls of the dovetail mortise 11, the T-shaped female mortise 12 and the half dovetail mortise 13 are coated with adhesive;

3. and hoisting the wood secondary beams 2 on two sides of the wood main beam 1 from top to bottom.

The mortise and tenon joint of this embodiment has ingenious utilized dovetail mortise and tenon fourth of twelve earthly branches and T-shaped male and female mortise and tenon fourth of twelve earthly branches, and is few to the weakening of wood girder 1 to form continuous wood secondary beam, and make the node safe and reliable more, the construction degree of difficulty is low, has advantages such as quick assembly, replaceable. Meanwhile, the heights of the main beams and the secondary beams can be reduced by the connected main beams and the connected secondary beams Liang Pingji.

In addition, compared with the steel-wood node connected by the bolt-steel plate which is popular in the industry at present, the mortise-tenon joint can avoid the problem that the beam end is easy to be damaged such as transverse grain splitting.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an assembled primary and secondary roof beam top parallel and level connects's mortise and tenon joint, includes a wood girder and two wood secondary roof beams, its characterized in that, the middle top both sides of wood girder are equipped with forked tail mortise and female mortise of T respectively, wherein, female mortise of T type is located the outside limit of forked tail mortise; the lap joint ends of the two wood secondary beams are respectively provided with a dovetail tenon and a T-shaped male tenon, wherein the dovetail tenons protrude out of the outer side edges of the T-shaped male tenons; the overlap joint ends of two wood secondary beams overlap joint respectively in the middle top position of wood girder, and, the forked tail tenon embedding in the forked tail mortise, the public tenon of T type embedding in the female mortise of T type.

2. The mortise and tenon joint according to claim 1 wherein a half dovetail mortise is formed in the bottom end of the T-shaped female mortise, a half dovetail tenon is formed in the bottom end of the T-shaped male tenon, and the half dovetail tenon is embedded in the half dovetail mortise.

3. A mortise and tenon joint according to claim 1 or 2 wherein the top surface of the dovetail tenons of the wood secondary beams is flush with the top surface of the wood primary beams.

4. The mortise and tenon joint according to claim 2 wherein the junction of the dovetail tenon and the dovetail mortise, the junction of the T-shaped male tenon and the T-shaped female mortise, and the junction of the half dovetail tenon and the half dovetail mortise are all coated with an adhesive.