CN211065858U

CN211065858U - Tenon fourth of twelve earthly branches structure children chair

Info

Publication number: CN211065858U
Application number: CN201921221733.2U
Authority: CN
Inventors: 王林; 邱国鹏; 邓琴
Original assignee: Sanming University
Current assignee: Sanming University
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-07-24
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a tenon fourth of twelve earthly branches structure children chair, including the back of the chair, seat and landing leg, the landing leg sets up to three altogether, including first landing leg, second landing leg and third landing leg, first landing leg is located second landing leg below, the second landing leg is located third landing leg below, be connected through tenon fourth of twelve earthly branches structure between each landing leg, the seat is provided with the back of the chair hole, the back of the chair below is provided with the stopper, stopper and back of the chair hole cooperate, the stopper below still is provided with a leg groove, first landing leg passes a leg groove and fixes the seat between the stopper upper flat of the back of the chair and the last plane of landing leg, the last leg inslot still installs the wedge. The utility model discloses a structure of tenon fourth of twelve earthly branches makes each component connection more stable, convenient with equipment children's chair to the principle of utilizing tenon fourth of twelve earthly branches structure to assemble lets the product interesting and portability more.

Description

Tenon fourth of twelve earthly branches structure children chair

Technical Field

The utility model relates to a life furniture technical field specifically is a tenon fourth of twelve earthly branches structure children chair.

Background

The ancient Chinese building is built by main components such as upright columns, cross beams, purlins and the like in a structural mode of taking woods, bricks and tiles as main building materials and taking a wood frame structure as a main structure, and joints among the components are matched through mortise and tenon joints to form a frame with high elasticity.

The mortise and tenon joint is a concave-convex combination connection mode adopted on two wood components. The convex part is called tenon (or tenon); the concave part is called as mortise (or mortise, mortise), and the tenon and the mortise are occluded to play a role in connection. This is the main structure mode of ancient Chinese buildings, furniture and other wooden appliances. The tenon-and-mortise structure is the combination of tenon and mortise, is the ingenious combination of more and less, high and low, long and short between the wood pieces, and can effectively limit the twisting of the wood pieces to all directions. The most basic mortise and tenon structure is composed of two components, wherein a tenon of one component is inserted into a mortise of the other component, so that the two components are connected and fixed. The part of the tenon extending into the mortise is called the tenon, and the rest part is called the shoulder.

The tenon-and-mortise structure is widely applied to buildings and furniture, and shows the close relationship between the furniture and the buildings. After the tenon-and-mortise structure is applied to house construction, although each component is thinner, the tenon-and-mortise structure can bear huge pressure on the whole. The structure is not strong in the individual but combined with each other to support each other, and the structure becomes the basic mode of the offspring building and the middle furniture.

At present, most of children's chairs are made of stainless steel materials through welding due to large requirements, children are easy to be knocked and hurt when playing, and are very inconvenient to play, parts of wooden children's chairs are made in a mode that wood boards, chair legs and chair backs are connected and fixed through bolts or screws, and the problems that components of the children's chairs are loose, abnormal sound and the like can occur easily after the children's chairs are used for a long time. Therefore, the traditional tenon-and-mortise structure process is applied to the children chair.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a children's chair of tenon fourth of twelve earthly branches structure aims at improving the easy not hard up and the easy children's of bruising problem of iron chair of traditional children's chair wood system chair through bolt or screwed connection.

The utility model discloses a realize like this:

a children chair with a tenon-and-mortise structure comprises a chair back, a chair surface and three support legs, wherein the three support legs comprise a first support leg, a second support leg and a third support leg, the first support leg is positioned below the second support leg, the second support leg is positioned below the third support leg, the support legs are connected through the tenon-and-mortise structure, a chair back hole is formed in the chair surface, a limiting block is arranged below the chair back, the limiting block is matched with the chair back hole, a support leg groove is further formed below the limiting block, the first support leg penetrates through the support leg groove to fix the chair surface between the upper plane of the chair back limiting block and the upper plane of the support leg, and a wedge-shaped block is further mounted in;

the side surfaces of the support legs are of a plant-shaped structure, a first mortise is arranged above the first support leg, the first mortise is two isosceles trapezoids with base angles of 60 degrees and is symmetrical about a longitudinal central plane of the first support leg, and the depth of the first mortise is equal to the thickness of 2/3 support legs;

a second lower mortise is arranged on the second supporting leg, the depth of the second lower mortise is equal to the thickness of 1/3 supporting legs, the second supporting leg is clamped into the first mortise through the lower second lower mortise and forms an included angle of 120 degrees with the first supporting leg, two triangular limiting grooves are formed between the side edge of the second supporting leg and the first mortise, a second upper mortise is also arranged on the second supporting leg, and the depth of the second upper mortise is equal to the thickness of 1/3 supporting legs;

a third mortise is arranged on the third supporting leg, the third supporting leg is matched with the second upper mortise and the limiting groove through the third mortise and forms an included angle of 120 degrees with the second supporting leg, the depth of the middle part of the third mortise is equal to the thickness of 2/3 supporting legs, and the depth of the part matched with the limiting groove is equal to the thickness of 1/3 supporting legs; through set up tenon fourth of twelve earthly branches structure on individual landing leg, the grafting connection makes individual landing leg fixed together in proper order, and adjacent landing leg contained angle all is 120 to increase the stability of support, and the back of the chair, seat and landing leg are connected and are only used tenon fourth of twelve earthly branches structure, and abundant traditional tenon fourth of twelve earthly branches technology is used in children's chair's preparation, has solved traditional children's chair and has adopted the easy not hard up problem of children of bruising of stainless steel whole welded and the wooden structure of adoption bolt and screw connection to use each component easily often.

Furthermore, the chair back and the chair seat installation plane form an included angle of 100-110 degrees, and the corresponding leg groove and the chair back plane also form an included angle of 100-110 degrees; the angle design is carried out according to the sitting posture of the human body, so that the comfort of the child chair can be improved.

Further, the height of the leg slot is equal to 5/3 leg thickness, the leg slot width is equal to the leg width, the wedge block width is equal to the leg width, and the middle thickness is equal to 2/3 leg thickness; the height of the leg supporting groove is convenient for lifting the height of the chair seat, so that each leg can be conveniently installed, and the whole children chair is locked through the wedge-shaped block after the legs are installed.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model (1) adopts the tenon fourth of twelve earthly branches structure to make each component connection of chair more stable.

(2) The principle of the tenon-and-mortise structure assembly is well utilized, so that the product is more interesting and portable, and the traditional tenon-and-mortise technology can be explained for children in the process of assembling the chair.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is an exploded view of the mortise and tenon children chair of the present invention;

FIG. 2 is a left side view of the mortise and tenon children chair of the utility model;

fig. 3 is a perspective view of the first leg of the mortise and tenon children chair of the utility model;

fig. 4 is a top view of the first leg of the mortise and tenon children chair of the present invention;

fig. 5 is a perspective view of a second leg of the mortise and tenon children chair of the utility model;

fig. 6 is a top view of a second leg of the mortise and tenon children chair of the present invention;

fig. 7 is a perspective view of a third leg of the mortise and tenon children chair of the utility model;

fig. 8 is a bottom view of the third leg of the mortise and tenon children chair.

In the figure: 1. a chair back; 11. a limiting block; 111. a leg slot; 2. a chair surface; 21. a chair back hole; 3. a support leg; 31. a first leg; 311. a first tongue-and-groove; 312. a limiting groove; 32. a second leg; 321. a second lower mortise; 322. a second upper mortise; 33. a third leg; 331. a third mortise; 4. a wedge block.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, in the embodiment of the present invention,

a children chair with a tenon-and-mortise structure comprises a chair back 1, a chair surface 2 and three support legs 3, wherein the three support legs 3 comprise first support legs 31, the chair comprises a second supporting leg 32 and a third supporting leg 33, wherein the first supporting leg 31 is positioned below the second supporting leg 32, the second supporting leg 32 is positioned below the third supporting leg 33, all the supporting legs 3 are connected through a mortise and tenon structure, a chair back hole 21 is formed in the chair surface 2, a rectangular limiting block 11 is arranged below an oval solid wood structure at the upper part of the chair back 1, the chair surface 2 is of a circular structure, the limiting block 11 is in sliding fit with the chair back hole 21, a supporting leg groove 111 is further formed below the limiting block 11, the first supporting leg 31 penetrates through the supporting leg groove 111 to fix the chair surface 2 between the upper plane of the limiting block 11 of the chair back 1 and the upper plane of the supporting leg 3, the chair back 1 and the mounting plane of the chair back 2 form an included angle of 100-110 degrees, and the corresponding supporting leg groove 111 and the; the angle is designed according to ergonomics, the comfort of the child seat is improved, and the wedge-shaped block 4 is further arranged in the supporting leg groove 111; the height of leg slot 111 equals 5/3 leg 3 thickness, the width of leg slot 111 equals 3 width, the width of wedge 4 equals 3 width, and the middle thickness equals 2/3 leg 3 thickness; the height of the leg supporting groove 111 is larger than 2/3 of the leg supporting 3, so that the height of the seat 2 is convenient to lift, and each leg supporting 3 is convenient to install, and the whole child chair is locked by the wedge-shaped block 4 after the leg supporting 3 is installed.

Referring to fig. 3 and 4, a first mortise 311 is disposed above the first leg 31, the first mortise 311 is formed by two isosceles trapezoids having a bottom angle of 60 ° and being symmetrical about a longitudinal center plane of the first leg 31, and a depth of the first mortise 311 is equal to 2/3 a thickness of the leg 3;

referring to fig. 5 and 6, a second lower mortise 321 is disposed on the second leg 32, the depth of the second lower mortise 321 is equal to 1/3 leg 3 thickness, the second leg 32 is clamped into the first mortise 311 through the lower second lower mortise 321 and forms an included angle of 120 ° with the first leg 31, the second leg 32 is mounted on the first leg 31, two sides of the second leg form two equilateral triangle limiting grooves 312 with the first mortise 311, a second upper mortise 322 is further disposed on the second leg 32, and the depth of the second upper mortise 322 is equal to 1/3 leg 3 thickness;

referring to fig. 7 and 8, a third tongue-and-groove 331 is disposed on the third leg 33, the third leg 33 is matched with the second upper tongue-and-groove 322 and the limiting groove 312 through the third tongue-and-groove 331 and forms an included angle of 120 ° with the second leg 32, the depth of the middle portion of the third tongue-and-groove 331 is equal to the thickness of 2/3 legs 3, the depth of the portion matched with the limiting groove 312 is equal to the thickness of 1/3 legs 3, the total thickness of the legs 3 is not changed after the third leg 33 is clamped on the second leg 32 and the first leg 31, the horizontal displacement direction of each leg 3 is completely limited by the mutual clamping of the tongue-and-grooves, and the legs 3 can only be disassembled from the vertical direction.

The working principle is as follows: the mortise and tenon joint is a concave-convex combination connection mode adopted on two wood components. The convex part is called tenon (or tenon); the concave part is called as mortise (or mortise, mortise), and the tenon and the mortise are occluded to play a role in connection; firstly, the chair back 1 penetrates through the chair back hole 21, then the first supporting leg 31 penetrates through the supporting leg groove 111, then the second supporting leg 32 is inserted into the first supporting leg along the first mortise 311 to enable the second lower mortise 321 to be clamped at the bottom of the first supporting leg 31, then the third supporting leg 33 is inserted into the second upper mortise 322 along the second supporting leg 331 to enable the third mortise 331 to be clamped on the second supporting leg 32, then the supporting leg 3 is pushed upwards to enable the upper plane of the supporting leg to be tightly attached to the lower surface of the chair seat 2, the wedge block 4 is inserted into the lower side of the supporting leg groove 111 to enable the wedge block 4 to tightly support the supporting leg 3 and the chair seat 2, therefore, the whole children chair is assembled, and the children chair can be disassembled only by detaching the wedge block 4.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a children's chair of tenon fourth of twelve earthly branches structure, includes back of the chair (1), seat (2) and landing leg (3), its characterized in that: landing leg (3) set up to three altogether, including first landing leg (31), second landing leg (32) and third landing leg (33), first landing leg (31) are located second landing leg (32) below, second landing leg (32) are located third landing leg (33) below, each be connected through tenon fourth of the twelve earthly branches structure between landing leg (3), seat (2) are provided with back of the chair hole (21), back of the chair (1) below is provided with stopper (11), stopper (11) cooperate with back of the chair hole (21), stopper (11) below still is provided with landing leg groove (111), first landing leg (31) pass landing leg groove (111) and fix seat (2) between the upper surface of stopper (11) upper surface and landing leg (3) of the back of the chair (1), still install wedge (4) in landing leg groove (111).

2. A mortise and tenon joint structure children chair according to claim 1, wherein the side surfaces of the supporting legs are all in a factory-shaped structure, a first mortise (311) is arranged above the first supporting leg (31), the first mortise (311) is formed by two isosceles trapezoids with the base angles of 60 degrees and is symmetrical about the longitudinal central plane of the first supporting leg (31), and the depth of the first mortise (311) is equal to 2/3 the thickness of the supporting leg (3).

3. The mortise and tenon joint structure children chair according to claim 1, wherein a second lower mortise (321) is arranged on the second supporting leg (32), the depth of the second lower mortise (321) is equal to 1/3 the thickness of the supporting leg (3), the second supporting leg (32) is clamped into the first mortise (311) through the lower second lower mortise (321) and forms an included angle of 120 degrees with the first supporting leg (31), the side edges of the second supporting leg (32) and the first mortise (311) form two triangular limiting grooves (312), a second upper mortise (322) is further arranged on the second supporting leg (32), and the depth of the second upper mortise (322) is equal to 1/3 the thickness of the supporting leg (3).

4. The mortise and tenon joint structure children chair according to claim 1, wherein a third mortise (331) is arranged on the third leg (33), the third leg (33) is matched with the second upper mortise (322) and the limiting groove (312) through the third mortise (331) and forms an included angle of 120 degrees with the second leg (32), the depth of the middle part of the third mortise (331) is equal to the thickness of 2/3 legs (3), and the depth of the part matched with the limiting groove (312) is equal to the thickness of 1/3 legs (3).

5. The mortise and tenon joint structure child chair according to claim 1, wherein an included angle of 100-110 degrees is formed between the chair back (1) and the mounting plane of the chair face (2), and an included angle of 100-110 degrees is formed between the corresponding leg groove (111) and the plane of the chair back (1).

6. A mortise and tenon joint structure children chair according to claim 1, wherein the height of the leg slot (111) is equal to 5/3 leg (3) thickness, the width of the leg slot (111) is equal to the leg (3) width, the width of the wedge block (4) is equal to the leg (3) width, and the middle thickness is equal to 2/3 leg (3) thickness.