CN219159328U

CN219159328U - Fast-growing wood contact reinforcing connection structure

Info

Publication number: CN219159328U
Application number: CN202222408286.XU
Authority: CN
Inventors: 蔚长祺; 关惠元
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-06-09
Anticipated expiration: 2032-09-05

Abstract

The utility model relates to a fast-growing wood joint reinforced connection structure, and belongs to the field of wood product production and manufacturing. The fast-growing wood contact reinforcing connection structure is divided into five parts: a hard wood first part (1), a hard wood second part (2), a fast growing wood first part (3), a fast growing wood second part (4) and a fast growing wood third part (5); the five parts are all jointed through an adhesive layer. The utility model has the following advantages: the materials of the key joints of the fast-growing wood are replaced by hard wood, so that the lumber property of the joint parts of the parts is improved, and the mechanical strength of the tenon joint is improved; the utilization rate of fast-growing wood is improved, and the cost of raw materials of the solid wood furniture is reduced; the mechanical property of the fast-growing wood solid wood furniture node is improved; the node strength of the fast-growing wood furniture structure is enhanced; the fast-growing wood resources are fully utilized, and the problem of shortage of solid wood resources in China is relieved; the whole is beautiful in appearance and simple and practical in structure.

Description

Fast-growing wood contact reinforcing connection structure

Technical Field

The utility model relates to a fast-growing wood joint reinforced connection structure, and belongs to the field of wood product production and manufacturing.

Background

Currently, the partial scholars in China aim at the fast-growing wood modification to improve the properties of the fast-growing wood, such as densification, resin injection and the like. The components of the chair furniture have low requirements on the strength of the molded surface and high requirements on the mechanical properties of the connecting nodes, so that the integral modification mode of the fast-growing poplar has high economic cost and can have the problems of wood waste and environmental pollution.

In addition, some workers add small-volume hard wood to the fast-growing wood joint to improve the structural strength of the fast-growing wood joint, so that the processing process of the mortise and tenon joint becomes complex, the gluing forming time is prolonged, and finally the furniture production period is prolonged.

According to the mechanical analysis of the solid wood furniture, as long as the section is reasonably utilized, the fast-growing wood does not need to be subjected to enhancement treatment, the strength of the fast-growing wood can meet the use requirement, but the joint strength of the parts is often insufficient, and along with the increase of the section size, the overall attractiveness of the joint part is insufficient, so that the fast-growing wood is restricted in the application of the furniture to a certain extent.

Disclosure of Invention

The utility model aims to provide a fast-growing wood joint reinforced connecting structure, which aims to solve the problem of prolonged gluing time caused by adding small-size hard wood blocks, has few parts required for joint connection, can be directly used for joint parts of solid wood furniture, and brings higher mechanical joint strength. Meanwhile, the appearance is reasonably improved, and the appearance is ensured to be concise and attractive when the mechanical strength is ensured. The structural design also solves the problems of volatile polluted gas brought by a modification method, wood loss brought by a wood compacting method, a resin injection method and the like, and improves the utilization rate of fast-growing wood.

The aim of the utility model is achieved by the following technical scheme.

The fast-growing wood joint reinforced connection structure is characterized by comprising five parts, namely a first hard wood part, a second hard wood part, a first fast-growing wood part, a second fast-growing wood part and a third fast-growing wood part; round mortises are formed at two ends of the hard wood first part, and the fast-growing wood first part and the fast-growing wood second part are connected with each other; one end of the hard wood second part is connected with the fast-growing wood third part through a round mortice; the first hard wood part and the second hard wood part are connected through the oval mortises and oval tenons, and the connecting parts are all required to be coated with adhesive.

The utility model has the following advantages:

the first hard wood part and the second hard wood part are added at the connecting joint part of the fast-growing wood, namely, the materials of the key joint of the fast-growing wood are replaced by hard wood, so that the lumber property of the joint part of the parts is improved, and the mechanical strength of the tenon joint is improved; the utilization rate of fast-growing wood is improved, and the cost of raw materials of the solid wood furniture is reduced; the mechanical property of the fast-growing wood solid wood furniture node is improved; the node strength of the fast-growing wood furniture structure is enhanced; the fast-growing wood resources are fully utilized, and the problem of shortage of solid wood resources in China is relieved; the whole is beautiful in appearance and simple and practical in structure.

Drawings

FIG. 1 is a block diagram of a fast-growing wood joint reinforced connection structure of the present utility model;

FIG. 2 is an exploded view of a fast-growing wood contact enhanced connection structure according to the present utility model;

FIG. 3 is a perspective detail view of a fast-growing wood joint reinforced connection structure wire frame of the present utility model;

FIG. 4 is a front view of a fast-growing wood contact reinforcing connection structure according to the present utility model;

FIG. 5 is a side view of a fast-growing wood joint reinforcing connection structure according to the present utility model;

FIG. 6 is a top view of a fast-growing wood contact reinforcing connection structure according to the present utility model;

the structure shown in the drawings comprises: comprises a hard wood first part 1, a hard wood second part 2, a fast growing wood first part 3, a fast growing wood second part 4 and a fast growing wood third part 5.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1, the appearance is simple and elegant.

Referring to the drawings, the fast-growing wood contact reinforcing connection structure comprises: a hard wood first part 1, a hard wood second part 2, a fast growing wood first part 3, a fast growing wood second part 4 and a fast growing wood third part 5; the two ends of the hard wood first part 1 are round mortises, and the fast-growing wood first part 3 and the fast-growing wood second part 4 are connected with each other; one end of the hard wood second part 2 is also connected with the fast-growing wood third part 5 through a round mortice; the first hard wood part 1 and the second hard wood part 2 are connected through oval mortises and oval tenons, and the joint parts are all required to be coated with adhesive; wherein, the oval mortise is positioned on the first part 1 of the hard wood, and the oval tenon is positioned on the second part 2 of the hard wood.

The textures of the fast-growing wood first part 3 and the fast-growing wood second part 4 which are connected with the hard wood first part 1 are straight. The textures of the hard wood second part 2 and the fast-growing wood third part 5 connected with the hard wood second part are straight. The whole body formed by the first hard wood part 1 and the first fast-growing wood part 3 and the second fast-growing wood part 4 connected with the first hard wood part is vertical to the whole body formed by the second hard wood part 2 and the third fast-growing wood part 5, and wood textures are vertical.

The distance between the bottoms of the elliptical mortises at the two ends of the hard wood first part 1 and the elliptical mortises at the middle position is not less than 5mm, the depth of the fast-growing wood first part 3 and the fast-growing wood second part 4 inserted into the hard wood first part 1 is not less than 25mm, and the distance between the inner walls and the outer walls of the prototype mortises at the two sides of the hard wood first part 1 is not less than 5mm. The outer side of the round mortises of the first hard wood part 1 is provided with chamfers of 5mm, and the distance between the inclined chamfers and the round mortises is not less than 2mm.

The size ranges of the round mortises of the hard wood second part 2 and the round tenons of the fast-growing wood third part 5 are the same as the joint ranges of the hard wood first part 1, the fast-growing wood first part 3 and the fast-growing wood second part 4.

The length of the oval tenon of the second hard wood part 2 is greater than 1/2 of the diameter of the first hard wood part 1; the width of the elliptical tenon is equal to the diameter of the second part 2 of the hard wood, and the thickness of the elliptical tenon is not less than 1/4 of the diameter of the part of the hard wood.

The depth of the oval mortises on the first hard wood part 1 is based on the length of the tenons close to the second hard wood part 2, and the depth is 2mm more than the length of the oval tenons of the second hard wood part 2, so that enough allowance is ensured to contain the adhesive, and the thickness between the bottom of the mortises and the foreign currency is kept to be more than 5mm; the width of the oval mortises is 0.1mm larger than the thickness of the oval tenons, and the length of the oval mortises is 0.2-0.4 mm smaller than the width of the oval tenons.

The depth of the machining plane on the oval mortises of the hard wood first part 1 is not less than 3mm, the length direction is equal to the length of the mortises, and the width direction is used as a basis according to the determined depth to machine a flat surface.

The plane sizes of the two sides of the elliptical tenons of the hard wood second part 2 are based on the area of the processing plane of the hard wood first part 1, the part exceeding the area of the processing plane of the hard wood first part 1 uses the intersection of the two parts as a cutting starting point, and symmetrical planes are respectively beveled on the two sides of the hard wood second part 2.

The lengths of the non-tenon joint parts of the fast-growing wood first part 3, the fast-growing wood second part 4 and the fast-growing wood third part 5 can be extended according to the needs, and the extension parts are not smaller than 1mm.

Claims

1. The fast-growing wood joint reinforced connecting structure is characterized by comprising five parts, namely a first hard wood part (1), a second hard wood part (2), a first fast-growing wood part (3), a second fast-growing wood part (4) and a third fast-growing wood part (5); the two ends of the hard wood first part (1) are round mortises, and the fast-growing wood first part (3) and the fast-growing wood second part (4) are connected with each other; one end of the hard wood second part (2) is connected with the fast-growing wood third part (5) through a round mortice; the first hard wood part (1) and the second hard wood part (2) are connected through an elliptical mortise and an elliptical tenon, and the connecting parts are all required to be coated with adhesive.

2. The fast-growing wood contact reinforcing and connecting structure according to claim 1, wherein: the oval mortises are positioned on the first hard wood part (1), and the oval mortises are positioned on the second hard wood part (2).

3. The fast-growing wood contact reinforcing and connecting structure according to claim 1, wherein: the distance between the bottoms of the elliptical mortises at the two ends of the hard wood first part (1) and the elliptical mortises at the middle position is not less than 5mm, the depth of the fast-growing wood first part (3) and the fast-growing wood second part (4) inserted into the hard wood first part (1) is not less than 25mm, and the distance between the inner walls and the outer walls of the prototype mortises at the two sides of the hard wood first part (1) is not less than 5mm; the outer side of the round mortises of the first hard wood part (1) is provided with chamfers with the length of 5mm, and the distance between the inclined chamfers and the round mortises is not less than 2mm.

4. The fast-growing wood contact reinforcing and connecting structure according to claim 1, wherein: the length of the oval tenon of the second hard wood part (2) is greater than 1/2 of the diameter of the first hard wood part (1); the width of the elliptical tenon is equal to the diameter of the second hard wood part (2), and the thickness of the elliptical tenon is not less than 1/4 of the diameter of the hard wood part.

5. The fast-growing wood contact reinforcing and connecting structure according to claim 1, wherein: the depth of the oval mortises on the first hard wood part (1) is based on the length of the tenons close to the second hard wood part (2), the depth is 2mm more than the length of the oval tenons of the second hard wood part (2), so that enough allowance is ensured to contain the adhesive, and the thickness between the bottom of the mortises and the foreign currency is more than 5mm; the width of the oval mortises is 0.1mm larger than the thickness of the oval tenons, and the length of the oval mortises is 0.2-0.4 mm smaller than the width of the oval tenons.

6. The fast-growing wood contact reinforcing and connecting structure according to claim 1, wherein: the depth of a machining plane on the oval mortises of the hard wood first part (1) is not less than 3mm, the length direction is equal to the length of the mortises, and the width direction is used as a basis according to the determined depth to machine a flat surface.

7. The fast-growing wood contact reinforcing and connecting structure according to claim 1, wherein: the plane sizes of the two sides of the elliptical tenons of the hard wood second part (2) are based on the area of the processing plane of the hard wood first part (1), the part exceeding the area of the processing plane of the hard wood first part (1) is cut by taking the intersection of the two parts as a cutting starting point, and symmetrical planes are beveled on the two sides of the hard wood second part (2).

8. The fast-growing wood contact reinforcing and connecting structure according to claim 1, wherein: the lengths of the non-tenon joint parts of the fast-growing wood first part (3), the fast-growing wood second part (4) and the fast-growing wood third part (5) can be extended according to the needs, and the extension parts are not smaller than 1mm.