CN211501230U

CN211501230U - Connection structure of woodwork and chair of using thereof

Info

Publication number: CN211501230U
Application number: CN201921728014.XU
Authority: CN
Inventors: 刘德华
Original assignee: Ganzhou Tuotu Intelligent Technology Co ltd
Current assignee: Ganzhou Tuotu Intelligent Technology Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-09-15
Anticipated expiration: 2029-10-15

Abstract

The utility model relates to a connection structure of woodwork and chair of using thereof, including screwed connection portion and toper connecting portion, toper connecting portion include first connecting piece and second connecting piece, and first connecting piece is connected with the direct fixed contact of second connecting piece, is equipped with the toper recess on the first connecting piece, is equipped with the toper plush copper with the one end of first connecting piece contact in the second connecting piece, the toper plush copper is close-fitting with the toper recess tapering of first connecting piece. The utility model provides a chair includes chair leg, back, chair frame, seat, wherein, the chair leg is 3 at least, is used for above-mentioned woodwork connection structure the horizontal pole with the montant, the montant with the chair frame, and in the fixed connection of chair leg and chair frame, the chair firm in connection, easy dismounting, processing simple, with low costs and the environmental protection that make the connection structure of woodwork and use.

Description

Connection structure of woodwork and chair of using thereof

Technical Field

The utility model relates to a woodwork field especially relates to a connection structure of woodwork and chair of using thereof.

Background

Tenon fixing is a very common fixing mode in wooden products. The straight-edge waist-shaped tenon and the rectangular tenon are common. The wood products connected by the two tenons have the following defects:

(1) the connection is firm in a short time, but for common wooden appliances such as stools and chairs, the fit clearance of a straight-edge waist-shaped or rectangular tenon is easy to be enlarged after being stressed, so that the two connection positions are staggered after clearance, and shaking or even a user falls down is caused.

(2) The requirement of an operator is high due to the fact that special tenon numerical control machining equipment is needed, and if the manual machining mode of sawing and chiseling is adopted, time and labor are wasted, and efficiency is low.

(3) The woodwork glue needs to be smeared, which is not only not environment-friendly, but also increases the cost investment of auxiliary materials.

(4) Nowadays, electronic commerce is developed, wooden products such as furniture are sold on the internet in a popular mode, and some furniture is designed to reach a destination as much as possible to be installed by a buyer in order to save space. But the woodwork of traditional tenon connection, because the technical degree of difficulty of installation is higher and need the special glue of woodwork, can only the seller install in advance, this will lead to the product can not dismantle when the packing, and the space that occupies will lead to the increase of commodity circulation or express delivery cost greatly.

SUMMERY OF THE UTILITY MODEL

The device to having no device that can satisfy above-mentioned requirement among the prior art yet, the utility model provides a connection structure of woodwork, including the toper connecting portion, the toper connecting portion include first connecting piece and second connecting piece, and first connecting piece is connected with the direct fixed contact of second connecting piece, is equipped with the toper recess on the first connecting piece, is equipped with the toper plush copper with the one end of first connecting piece contact in the second connecting piece, the toper plush copper of toper plush copper and first connecting piece tapering tight fit.

Preferably, the taper of the tapered groove in the first connecting piece is a; the taper of the conical convex head in the second connecting piece, which is mutually matched with the conical groove of the first connecting piece, is b; the size of the upper end of the conical groove is smaller than that of the opening end, and the size of the upper end of the conical groove is L1; the minimum dimension of the conical projection is L2; the angle range of the taper a of the tapered groove and the taper b of the tapered raised head is 1-20 degrees; the angles of the taper a and the taper b can be equal or unequal.

Preferably, L1 is less than or equal to L2 when the angle of taper a is equal to the angle of taper b, or both are plus or minus 1 degree apart; the conical projection at one end of the second connector is removable.

Preferably, the angle of the taper a of the conical recess is 5 degrees and the angle of the taper b of the conical nose is 6 degrees.

Preferably, the connector further comprises a screw connecting part, the screw connecting part comprises a screw, a threaded hole and a threaded sleeve, the threaded sleeve is located in the threaded hole of the conical raised head of the second connector, the axis of the threaded sleeve is parallel or coaxial with the axis of the conical raised head in the second connector, and the first connector and the second connector are fixedly connected through the screw.

Preferably, a countersunk seat is provided at a position where the first connecting member contacts the screw, for sinking the bolt cap into the first connecting member.

Preferably, the threaded hole can be obtained by drilling, and can also be obtained by directly installing a threaded sleeve; the thread is arranged inside and outside the sleeve of the thread sleeve, and the thread sleeve can be made of metal materials or nonmetal materials.

Preferably, the tapered recess on the first connecting piece and the tapered nose in the second connecting piece are matched with each other, and the cross section of the tapered recess and the cross section of the tapered nose are similar and can be one of a circle, an ellipse or a polygon.

The utility model provides a chair, includes chair leg, back, chair frame, seat, wherein, the chair leg is 3 at least, chair leg one end and ground contact, the other end and chair frame fixed connection, seat and chair frame fixed connection, the back includes horizontal pole and montant, the horizontal pole is at least, the montant is at least one, just montant one end and chair frame fixed connection, the other end and horizontal pole fixed connection, the horizontal pole with the montant, the montant with the chair frame, and the chair leg adopts the connection structure fixed connection of the woodwork of toper connecting portion and screwed connection portion with the fixed connection of chair frame.

Preferably, an anti-slip rubber sleeve is sleeved at one end of all the chair legs which are contacted with the ground.

The utility model relates to a connection structure of woodwork's beneficial effect is: (1) the tapered connecting part replaces a traditional tenon straight-edge waist-shaped or rectangular straight-edge tenon, so that the first connecting piece and the second connecting piece of the wooden product are firmly connected, and if the second connecting piece provided with the tapered raised head is used as a supporting piece, the tapered connecting part is more and more firmly used, and the tapered matching is more and more tight after being stressed; (2) the conical raised head can be machined by a lathe, the conical groove can be machined by a forming drill bit with the same taper, and the machining precision and the machining efficiency are higher than those of a traditional tenon; (3) the traditional tenon needs to be coated with woodwork glue, so that the environment is not protected, the cost is increased, the taper tenon does not need woodwork glue, the cost is saved, and the pollution to the environment is avoided; (4) the conical connecting parts are adopted for fixed connection, so that the disassembly and the assembly are convenient; in addition, in order to further improve, the firmness of connection, in a preferred embodiment, is further provided with a screw connection part, so that the firmness of connection between the first connecting part and the second connecting part is improved, and meanwhile, when the screw is detached, the separation of the second connecting part and the first connecting part is promoted through detaching the screw, and the detaching efficiency is improved. Therefore, through the combination of the conical connecting parts and the screw connecting parts, the installation and the disassembly of the wooden products can be conveniently realized, the products can be disassembled and then packaged into small packages, and the loading space is saved, so that the logistics cost is effectively reduced.

The utility model provides a chair includes chair leg, back, chair frame, seat, wherein, 3 at least chair legs, chair leg one end and ground contact, the other end and chair frame fixed connection, seat and chair frame fixed connection, the back includes horizontal pole and montant, the horizontal pole is at least, the montant is at least one, just montant one end and chair frame fixed connection, the other end and horizontal pole fixed connection are used for above-mentioned woodwork connection structure the horizontal pole with the montant, the montant with the chair frame, and in the fixed connection of chair leg and chair frame, make chair firm in connection, easy dismounting, processing simple, with low costs and environmental protection.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be described in more detail.

Fig. 1 is a front view of one example of a connecting structure of a wooden product according to the present invention;

FIG. 2 is an enlarged view of a cross-sectional view of one embodiment of a wood product joining structure according to the present invention;

FIG. 3 is an enlarged view of a cross-sectional view of a first connecting member of a wood product connecting structure according to the present invention;

FIG. 4 is an enlarged view of a cross-sectional view of a second connecting member of a wood product connecting structure according to the present invention;

fig. 5 is a perspective view of one embodiment of a chair using a wooden product connecting structure according to the present invention.

Figure 100-first connector; 101-a tapered recess; 200-a second connector; 201-conical nose; 301-threaded hole; 302-a threaded sleeve; 303-screw; 304-a countersunk seat; 305-a shim; 400-backrest; 401-a cross-bar; 402-a vertical rod; 500-seat plate; 600-antiskid rubber sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "fixedly attached" to another element or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," rotationally coupled "to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment. As used in the following description, the terms "front," "back," "left," "right," "upper," "lower," "bottom," and "top" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, the terms "first", "second", "third", and the like do not denote any particular quantity or order, but rather are used to distinguish one name from another.

As shown in fig. 1 to 5, a connecting structure for wood products comprises a tapered connecting portion, the tapered connecting portion comprises a first connecting piece 100 and a second connecting piece 200, the first connecting piece 100 is directly fixed and connected with the second connecting piece 200 in a contact manner, a tapered groove 101 is formed in the first connecting piece 100, a tapered raised head 201 is arranged at one end, in contact with the first connecting piece 100, of the second connecting piece 200, and the tapered raised head 201 is in tapered tight fit with the tapered groove 101 of the first connecting piece 100.

As described above, the first connector 100 and the second connector 200 are in contact with each other through two concave-convex tapered surfaces, so as to achieve a taper tight fit, specifically, a certain plastic deformation of the wood product itself is used to form a tension between the tapered protrusion 201 and the tapered groove 101, so as to achieve the fixation of the first connector 100 and the second connector 200.

In one embodiment, the taper of the tapered recess 101 in the first connecting member 100 is a; the taper of the conical projection 201 in the second connecting piece 200, which is matched with the conical groove 101 of the first connecting piece 100, is b; the size of the upper end of the conical groove 101 is smaller than that of the opening end, and the size of the upper end of the conical groove 101 is L1; the minimum dimension of conical projection 201 is L2; the angle range of the taper a of the tapered recess 101 and the taper b of the tapered nose 201 is 1-20 degrees; the angles of the taper a and the taper b can be equal or unequal.

As described above, the taper a of the tapered groove 101 and the taper b of the tapered nose 201 may take values between 1 and 20 degrees, and the taper a and the taper b may be equal or unequal, and the contact surface is the largest when the angles are equal, and the tension between the tapered groove 101 and the tapered nose 201 needs to be obtained by taking values of L1 and L2 to realize the fixed connection between the first connecting piece 100 and the second connecting piece 200, at this time, the values of L1 and L2 are accurate, and the tapered nose 201 is forcibly pressed into the tapered groove 101 mainly through the plasticity of the wood product itself.

In one embodiment, when the angle of taper a is equal to the angle of taper b, or both are plus or minus 1 degree apart, L1 is less than or equal to L2; the conical projection 201 at one end of the second connector 200 is removable.

In one embodiment, the angle of taper a of the tapered recess 101 is 5 degrees and the angle of taper b of the tapered nose 201 is 6 degrees.

As described above, it is practiced that when the angle of taper a of the tapered recess 101 is 5 degrees and the angle of taper b of the tapered nose 201 is 6 degrees, the tapered nose 201 can be inserted well into the tapered recess 101 and the tapered nose 201 are fitted well to each other.

In one embodiment, the connector further comprises a screw connecting part, wherein the screw connecting part comprises a screw 303, a threaded hole 301 and a threaded sleeve 302, the threaded sleeve is positioned in the threaded hole 301 of the conical projection 201 of the second connector 200, the axis of the threaded sleeve 302 is parallel to or coaxial with the axis of the conical projection 201 of the second connector 200, and the first connector 100 is fixedly connected with the second connector 200 through the screw 303.

As described above, the screw connection portion can form a tensile force between the first connection member 100 and the second connection member 200, and when the second connection member 200 is in a suspended state and the tapered recess 101 and the tapered protrusion 201 are disengaged, the second connection member 200 can be fixed to the first connection member 100; on the other hand, when disassembly is required, the screw 303 can be unscrewed from the threaded sleeve 302 by rotating the screw 303, and then the conical protrusion 201 of the second connector 200 can be separated from the conical groove 101 of the first connector 100 by knocking the nut, so as to achieve the purpose of disassembly.

In one embodiment, a countersunk seat 304 is provided at a position where the first connector 100 contacts the screw for sinking the bolt cap into the first connector 100. In addition, a gasket 305 is arranged below the nut in the counter-sunk seat, and the gasket 305 can be a flat gasket, an elastic gasket or a combination of the flat gasket and the elastic gasket.

As described above, by providing the countersunk head base 304 at the position where the first connecting member 100 contacts the screw 303 and sinking the nut of the bolt into the first connecting member 100, the upper surface of the first connecting member 100 can be ensured to be flat without affecting the contact of other components with the first connecting member 100.

In one embodiment, the threaded hole 301 can be obtained by drilling or directly installing the threaded sleeve 302; threads are arranged inside and outside the sleeve of the threaded sleeve 302, and the threaded sleeve 302 can be formed by pressing metal materials or nonmetal materials.

As described above, for wood with a high density, the threaded hole 301 needs to be drilled in advance, and then the threaded sleeve 302 needs to be installed; for less dense wood, the threaded sleeve 302 may be installed directly, which may allow the threaded sleeve 302 to be better secured within the second connector 200.

In one embodiment, the tapered recess 101 of the first connector 100 and the tapered nose 201 of the second connector 200 are matched, and the tapered recess 101 and the tapered nose 201 have similar cross-sections and may be one of a circle, an ellipse and a polygon.

As described above, if the tapered recess 101 and the tapered nose 201 are polygonal in cross section, the tapered surfaces are composed of planes, and the inclination of the planes may be different.

The utility model provides a chair, includes chair leg, back 400, chair frame, seat 500, wherein, 3 at least of chair leg, preferably, the chair leg is established to 4, and the upper end at the chair leg is established to the toper plush copper, chair leg one end and ground contact, the other end and chair frame fixed connection, toper recess are established on the chair frame, seat 500 and chair frame fixed connection, preferably adopt the screw fixation, back 400 includes horizontal pole 401 and montant 402, horizontal pole 401 is at least one, montant 402 is at least one, in one of them embodiment horizontal pole 401 is one, montant 402 is three, just montant 402 one end and chair frame fixed connection, the other end and horizontal pole 401 fixed connection, and the connection structure fixed connection of the woodwork of chair leg and chair frame adoption toper connecting portion and screwed connection portion.

In one embodiment, an anti-slip rubber sleeve 600 is sleeved on one end of at least one of the legs contacting with the ground.

As described above, in order to prevent the legs contacting the ground from slipping, an anti-slip rubber sleeve 600 is sleeved on one end of at least one of the legs contacting the ground.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. The utility model provides a connection structure of woodwork, its characterized in that, includes toper connecting portion, toper connecting portion include first connecting piece and second connecting piece, and first connecting piece is connected with the direct fixed contact of second connecting piece, is equipped with the toper recess on the first connecting piece, is equipped with the toper plush copper with the one end of first connecting piece contact in the second connecting piece, the toper plush copper is close-fitting with the toper recess tapering tight fit of first connecting piece.

2. The wood product connecting structure according to claim 1, wherein said tapered recess in said first connecting member has a taper of a; the taper of the conical convex head in the second connecting piece, which is mutually matched with the conical groove of the first connecting piece, is b; the size of the upper end of the conical groove is smaller than that of the opening end, and the size of the upper end of the conical groove is L1; the minimum dimension of the conical projection is L2; the angle range of the taper a of the tapered groove and the taper b of the tapered raised head is 1-20 degrees; the angles of the taper a and the taper b can be equal or unequal.

3. A wood product connecting structure according to claim 2, wherein when the angle of taper a is equal to the angle of taper b, or both are different by plus or minus 1 degree, L1 is less than or equal to L2; the conical projection at one end of the second connector is removable.

4. A wooden product connecting structure according to claim 3, characterized in that the angle of taper a of the tapered recess is 5 degrees and the angle of taper b of the tapered nose is 6 degrees.

5. The wood product connecting structure according to claim 1, further comprising a screw connecting portion, said screw connecting portion including a screw, a threaded hole, and a threaded sleeve, said threaded sleeve being located in the threaded hole of the conical nose of the second connecting member, an axis of said threaded sleeve being parallel or coaxial with an axis of the conical nose of the second connecting member, and fixedly connecting the first connecting member and the second connecting member by the screw.

6. The wood product connecting structure according to claim 5, wherein a countersunk seat for sinking a bolt cap into the first connecting member is provided at a position where the first connecting member comes into contact with said screw.

7. The wood product connecting structure according to claim 5, wherein said screw hole is obtained by drilling or directly installing a screw sleeve; the thread is arranged inside and outside the sleeve of the thread sleeve, and the thread sleeve can be made of metal materials or nonmetal materials.

8. A wood product connecting structure according to claim 1, wherein the tapered recesses in the first connecting member and the tapered projections in the second connecting member are congruent, and the tapered recesses and the tapered projections have a similar cross-section and may be one of circular, elliptical, or polygonal.

9. A chair, including chair leg, back, chair frame, seat, wherein, the chair leg is 3 at least, chair leg one end and ground contact, the other end and chair frame fixed connection, seat and chair frame fixed connection, the back includes horizontal pole and montant, horizontal pole is at least one, the montant is at least one, and montant one end and chair frame fixed connection, the other end and horizontal pole fixed connection, characterized in that, the horizontal pole with the montant, the montant with the chair frame, the fixed connection of chair leg and chair frame adopts the connection structure fixed connection of the woodwork of any claim 1 to claim 7.

10. The chair as claimed in claim 9, wherein an anti-slip rubber sleeve is provided at one end of all the legs contacting the ground.