CN110946424B

CN110946424B - Desk and chair supporting leg

Info

Publication number: CN110946424B
Application number: CN201911388157.5A
Authority: CN
Inventors: 王历文
Original assignee: Longmen Pinxi Bamboo And Wood Products Co ltd
Current assignee: Longmen Pinxi Bamboo And Wood Products Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-10-15
Anticipated expiration: 2039-12-30
Also published as: CN110946424A

Abstract

The invention relates to a table and chair supporting leg, comprising a supporting leg body and a reinforcing mechanism, wherein the reinforcing mechanism comprises: the L-shaped screw hole comprises a vertical hole arranged on the upper end surface of the supporting leg and a transverse hole arranged on the side surface of the supporting leg, and the vertical hole is communicated with the transverse hole; the embedded column is movably arranged in the vertical hole, the lower end of the embedded column is an inclined plane, and the upper end of the embedded column is inserted into the table and chair body in an interference manner after extending out; the ejection piece is arranged in the transverse hole, and the front end of the ejection piece is provided with an inclined surface and an ejection screw which are matched with the lower end of the embedded column; and the reinforcing screw is screwed into the transverse hole, the front end of the reinforcing screw is abutted against the ejection piece to eject the ejection piece, so that the embedded column is ejected upwards, and finally the upper end of the embedded column extends out. According to the invention, the original simple screw connection is changed into screw connection and interference embedding by means of embedding the column, the number of fixing points is more, the rotation and loosening of the supporting legs in the using process are effectively prevented, the embedded column is effectively firmer by injecting glue through the reinforcing structure, and the connection reliability is further improved.

Description

Desk and chair supporting leg

Technical Field

The invention relates to the field of wooden furniture accessories, in particular to a reinforced table leg.

Background

With the development of electric business, the proportion of the furniture purchased on the internet by consumers is increasing, and in order to facilitate transportation, manufacturers generally send the furniture to the consumers in a semi-finished product state of parts and accessories, and the furniture is assembled by the consumers after the furniture is received by the consumers.

Because of the difference in the manual ability of consumers, the installation difficulty needs to be considered in the process of the installation structure of the parts, some complicated but more stable connection structures cannot be used, and some simple threaded connections and the like have poor reliability in the long-term use process.

In the aspect of the supporting legs of the table and chair, because the supporting legs need to bear or move, the reliability requirement of the connection relation is very high, and in order to take the installation difficulty into consideration, the problem is caused by the product design of manufacturers. Therefore, it is necessary to provide a supporting leg for a table and chair, which is simple to install and reliable in connection.

SUMMERY OF THE UTILITY MODEL

Therefore, the supporting leg for the table and the chair, which is simple and convenient in workpiece installation and operation, firm in connection and high in safety performance, needs to be designed.

The utility model provides a table chair supporting legs, includes the supporting legs body, the supporting legs body passes through main screw and is connected with table chair, still including encircleing the setting and being in reinforcing mechanism around the main screw, reinforcing mechanism includes:

the L-shaped screw hole comprises a vertical hole arranged on the upper end surface of the supporting leg and a transverse hole arranged on the side surface of the supporting leg, and the vertical hole is communicated with the transverse hole;

the embedded column is movably arranged in the vertical hole, the lower end of the embedded column is an inclined plane, and the upper end of the embedded column is extended out and then is embedded into the table and chair body in an interference manner;

the ejection piece is arranged in the transverse hole, and the front end of the ejection piece is an inclined surface matched with the lower end of the embedded column; and

and the reinforcing screw is screwed into the transverse hole, the front end of the reinforcing screw is abutted to the ejection piece to eject the ejection piece, so that the embedded column is ejected to rise, and finally the upper end of the embedded column extends out.

Further, the glue injection mechanism comprises a glue storage cavity and a communication conduit; the glue storage cavity is in the end of cross bore extends out, just the glue is stored the intracavity and is equipped with liquid viscose, the UNICOM pipe both ends are connected respectively the glue storage cavity with erect the hole end.

Further, the liquid viscose is externally wrapped with a protective layer.

Further, the outer surface of the embedded column is provided with a groove structure.

Further, the groove structure is a thread groove.

Further, the number of the reinforcing mechanisms is 2.

Furthermore, the ejector is made of metal.

In addition, the invention also provides a method for installing the supporting legs of the table and the chair, and the method for installing the supporting legs of the table and the chair comprises the following steps:

the table and chair supporting legs are primarily connected with the table and chair main body through main screws;

injecting liquid viscose into the glue storage cavity;

putting the ejector into the transverse hole, and ejecting the ejector into the transverse hole through the reinforcing screw;

after the embedded column is jacked up through the jacking piece, liquid viscose is extruded into the communicating guide pipe, and finally the liquid viscose is injected into the tail end of the vertical hole;

and waiting for the liquid adhesive to be cured, and finishing the installation of the supporting legs of the table and the chair.

Compared with the prior art, the invention has the following beneficial technical effects:

1. through the mode of embedding post, will originally pure spiro union change into spiro union and interference embedding, the fixed point is more, effectively prevents rotatory pine in the supporting legs use and takes off.

2. Through the reinforced structure injecting glue, effectively make the embedding post more firm, further improve and connect the reliability.

Drawings

Fig. 1 is an exploded view of a table and chair supporting leg according to an embodiment of the present invention.

Fig. 2 is a schematic structural cross-sectional view of a leg of a table and chair according to an embodiment of the present invention.

Wherein, 10 is L type screw, 11 is the horizontal hole, 12 is the vertical hole, 20 is embedding post, 21 is the groove structure, 30 is the ejector member, 40 is the reinforcement screw, 50 is the injecting glue mechanism, 51 is the glue storage chamber, 52 is the UNICOM pipe.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand for those skilled in the art and will therefore make the scope of the invention more clearly defined.

Example 1:

referring to fig. 1 and 2, a table and chair supporting leg is fixed with a table and a chair by cooperation of multiple connection modes, so that the supporting leg is more stable and reliable after being installed and is easy to install.

The supporting leg body is connected with the table and the chair through main screws, in addition, the supporting leg body is further connected and reinforced through a reinforcing mechanism, the reinforcing mechanism is arranged around the main screws in a surrounding mode, and preferably the number of the reinforcing mechanisms is 2.

The rotation of the supporting leg body cannot be influenced in the process of screwing the supporting leg body, and after the rotation is finished, the reinforcing mechanism extends out from the top surface of the supporting leg body and extends into a groove hole preset by a table and a chair to carry out secondary connection reinforcement. It will of course be appreciated that during rotation it is necessary to match the position of the reinforcement means with the slot.

Specifically, the reinforcement mechanism includes: the device comprises an L-shaped screw hole 10, an embedded column 20, an ejector 30, a reinforcing screw 40 and a glue injection mechanism 50.

The L-shaped screw hole 10 is composed of a transverse blind hole and a vertical blind hole, the orifice of the vertical hole 12 is positioned on the upper end surface of the supporting leg body, and the orifice of the transverse hole 11 is positioned on the side surface of the supporting leg. The cross hole 11 communicates with the end of the vertical hole 12, and the cross hole 11 is provided with a screw thread.

In some embodiments, in order to increase the stress strength, an internal threaded cylindrical structure made of metal may be embedded in the cross hole 11.

The concrete working principle is that the embedded column 20 is placed in the vertical hole 12, the ejector 30 is arranged in the transverse hole 11, and the ejector 30 is pushed into the transverse hole 11 by the reinforcing screw 40. Eventually jacking the embedded post 20 within the vertical bore 12.

The embedded column 20 is movably arranged in the vertical hole 12, so that the embedded column 20 can move up and down in the vertical hole 12, the embedded column 20 completely falls into the vertical hole 12 in a natural state, and when the embedded column 20 is jacked, the embedded column is embedded into the table and chair body in an interference manner to perform secondary reinforcement.

In order to realize that the embedded column 20 can be jacked up by the ejector 30, the bottom end of the embedded column 20 is provided with an inclined surface facing the orifice of the transverse hole 11, the front end of the ejector 30 is also correspondingly provided with an inclined surface, the angle range of the inclined surface can be set to any value between 40 degrees and 50 degrees, when the inclination is small, the resistance is relatively small, and the embedded column 20 is jacked up more easily. However, if the angle of inclination is too small, the ejector 30 will be too long, thereby balancing the relationship of the angle of inclination.

The rear end of the ejector 30 is formed to be flat so that the reinforcing screw 40 is easily pushed in, and as the screw is pushed in, the inclined surface of the bottom of the insert column 20 slides relative to the inclined surface of the ejector 30, thereby lifting the insert column 20. In order to ensure that the ejector 30 is not deformed in the process, the ejector 30 is made of metal

The reinforcing screw 40 is screwed into the cross hole 11, and the front end of the reinforcing screw abuts against the ejector 30 to push the ejector 30, so that the embedded column 20 is pushed to rise, and finally the upper end of the embedded column 20 extends out.

In addition, in order to make the embedded column 20 more firmly connected with the desk and chair, the glue injection mechanism 50 is disposed at the end of the transverse hole 11, preferably, it may be disposed at the more rear end where the transverse hole 11 is connected with the vertical hole 12. Specifically, the glue injection mechanism 50 includes a glue storage chamber 51 and a communication conduit 52. The glue storage cavity 51 extends out from the end of the transverse hole 11, the shape of the inner wall of the glue storage cavity 51 can be matched with the front end of the ejector 30, and liquid viscose is arranged in the glue storage cavity 51. And the two ends of the communicating conduit 52 are respectively connected with the glue storage cavity 51 and the tail end of the vertical hole 12. In the pushing process of the pushing piece 30, the space in the glue storage cavity 51 is continuously reduced, the liquid viscose is pushed into the communicating conduit 52 and injected into the tail end of the vertical hole 12, and the embedded column 20 in the vertical hole 12 extends out at the moment, so that the embedded column 20, the table and chair and the supporting legs of the table and chair are bonded to form a stable structure under the action of the liquid viscose.

In the liquid adhesive, the curing adhesive is mainly used, that is, the adhesive is in a liquid state before use, and the adhesive is cured after a certain time after use, and the curing adhesive may be latex, epoxy resin or modified materials thereof.

In some embodiments, the liquid adhesive may be injected into the capsule in advance, so that the liquid adhesive forms a protective layer outside the capsule, which may be pre-inserted into the transverse hole 11 during the production process, to further simplify the installation process, and the pushing member 30 may be inserted into the glue storage cavity 51 to break the capsule.

In order to facilitate the liquid adhesive to penetrate into the table and chair, the outer surface of the embedded column 20 is provided with a groove structure 21, preferably, the groove structure 21 can be, but not limited to, a threaded groove. The liquid adhesive may be impregnated along the threaded hole.

Example 2:

in addition, the invention also provides a method for installing the supporting legs of the table and the chair, which is based on the supporting legs of the table and the chair and comprises the following steps:

the supporting legs of the table and the chair are primarily connected with the main body of the table and the chair through main screws. The preliminary connection is a threaded connection.

Liquid glue is injected into the glue reservoir 51. It will be appreciated that when the liquid adhesive is in the form of a capsule, it may be placed into the transverse bore 11 between assembly.

The ejector 30 is placed in the transverse hole 11, and the ejector 30 is pushed into the transverse hole 11 by the reinforcing screw 40.

The liquid adhesive is injected into the end of the vertical hole 12 by pushing up the embedded column 20 by the ejector 30 and then extruding the liquid adhesive into the communicating conduit 52.

And (5) waiting for the solidification of the liquid adhesive and installing the supporting legs of the table and the chair. It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a table chair supporting legs, includes the supporting legs body, the supporting legs body passes through main screw and is connected with table chair, its characterized in that still includes to encircle to set up reinforcing mechanism around the main screw, reinforcing mechanism includes:

the L-shaped screw hole comprises a vertical hole arranged on the upper end surface of the supporting leg body and a transverse hole arranged on the side surface of the supporting leg, and the vertical hole is communicated with the transverse hole;

2. The table and chair support leg of claim 1, further comprising a glue injection mechanism, said glue injection mechanism comprising a glue storage chamber and a communication conduit; the glue storage cavity is in the end of cross bore extends out, just the glue is stored the intracavity and is equipped with liquid viscose, the UNICOM pipe both ends are connected respectively the glue storage cavity with erect the hole end.

3. The table and chair support foot of claim 2, wherein said liquid adhesive is externally coated with a protective layer.

4. A table and chair support as claimed in claim 1, wherein the outer surface of the insert post is provided with a groove formation.

5. A table and chair support as claimed in claim 4, wherein the recess formation is a screw-threaded groove.

6. A table and chair support as claimed in claim 1 or claim 2, wherein the reinforcement means is 2 in number.

7. A table and chair support as claimed in claim 1, wherein the ejector is of metal.

8. A method of mounting a leg for a table or chair, using a leg for a table or chair as claimed in claim 2, the method comprising:

injecting liquid viscose into the glue storage cavity;