CN111288052B

CN111288052B - Built-in connecting device

Info

Publication number: CN111288052B
Application number: CN201811484380.5A
Authority: CN
Inventors: 樊景明
Original assignee: Chongqing Lan Lin Teaching Equipment Co ltd
Current assignee: Chongqing Lan Lin Teaching Equipment Co ltd
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2022-01-28
Anticipated expiration: 2038-12-06
Also published as: CN111288052A

Abstract

The invention relates to a built-in connecting device which is used for connecting angular beam columns. The device mainly comprises a connecting piece which can be connected with the cross beam, and the connecting piece can be detachably jointed to be tightly abutted against a connecting pipe fitting of the inner wall of the upright post. The built-in connecting device has the advantages that the appearance cannot be seen, the attractiveness is guaranteed, and in addition, the connecting device is firmer and more stable due to the mutual meshing mode of the combination of the connecting pieces. Meanwhile, the device is simple in component parts, easy to manufacture and wide in application range, can be widely and randomly combined, does not need too many casting templates, can replace only damaged parts once damage of individual connecting pieces occurs, is simple to repair, prolongs the whole service life of equipment served by the device, and is a novel connecting device integrating attractiveness and practical use.

Description

Built-in connecting device

Technical Field

The invention relates to the field of mechanical manufacturing, in particular to an embedded connecting device for angular connection between various beams and columns.

Background

In the field of modern machine manufacturing, especially consumer products, the requirements of more consumer levels such as beauty, practicality, simplicity and the like are more and more emphasized in terms of stable connection among various components besides the original requirement of firmness.

Disclosure of Invention

Aiming at the defects and the demand direction in the field, in order to realize the purpose, the scheme of the invention realizes the connection of the beams and the columns in different directions by embedding the connecting pipe body in a mode of surrounding the upright column, and can realize the connection among various columns in angles only by designing the specification of the connecting piece according to the type of the upright column.

The invention provides the following technical scheme:

a concealed connection device for angular connection between a beam and a column, wherein the device essentially comprises a connector connectable to the beam, a plurality of said connectors being detachably engageable as connector tubes tightly against the inner wall of the column.

The cross beam and the upright post are both cylinders used in a connecting frame in a mechanical product, the cross beam and the upright post are not substantially different in material and action, and the upright post is not necessarily perpendicular to the ground or a horizontal plane but is a relatively vertical one of the two cylinders, so that a better embedded and surrounded fixing effect can be realized through the self weight; similarly, the cross beam does not have to be parallel to the ground or the horizontal plane, but refers to a type with a relatively horizontal angle; also, it is generally preferred that the connection device of the present invention be used for the angular (mostly vertical) connection of a column to one or more beams, but the name and positional relationship of both columns and beams may be interchanged.

Preferably, the connecting member is a rectangular steel sheet. The length of its wide sides is equal to or slightly greater than (so as to be used for bending engagement) the width of the inner surface of the face of the upright against which the connecting element abuts (in the case of a number of pieces of connecting element equal to the number of sides of the polygonal cross-section of the upright). Preferably, the rectangular connecting members have engaging pieces bent toward one side on both long sides thereof for detachably engaging the adjacent connecting members. The engagement elements are preferably on the opposite side of the plane of the rectangular connecting element from the cross-beam, but can also be on the same side (the engagement points of the connecting tube elements forming the row abut tightly against the inner wall of the upright). Preferably, the engaging member on each side has at least one protrusion and/or at least one protrusion slot, and the protrusions and the protrusion slots on the engaging members connected with each other on the adjacent connecting members are the same in number and at the same height and can be engaged with each other to fix the adjacent two connecting members.

Preferably, at least the middle part (middle) of the connecting piece needing to be connected with the cross beam is provided with a connecting hole, and the size and the shape of the connecting hole are the same as those of the connecting piece contact surface of the cross beam needing to be connected with the connecting hole, so that the connecting hole is fixedly connected with the cross beam. Preferably, the connecting piece is connected with the cross beam at the position of the connecting hole in a welding mode. Alternatively, the welding of the connecting member to the cross beam may be achieved by nut anchoring or the like (in this case, the connecting portion of the cross beam is bent outward after passing through the connecting hole to form a plane of engagement with the steel sheet of the connecting member, or the connecting portion of the cross beam is bent outward without using the connecting hole to directly form a plane of engagement with the steel sheet of the connecting member).

For the above device of the present invention, the upright column includes two parts, namely an upper upright column and a lower upright column, the opposite ends of the upper upright column and the lower upright column respectively have openings on the surface connecting the cross beam, the shape and size of the opening of the upper upright column are the same as the upper half of the connecting contact surface of the cross beam (when vertically connected, the contact surface is the cross section of the cross beam), and the shape and size of the opening of the lower upright column are the same as the lower half of the connecting contact surface of the cross beam.

Further, the connecting member has fixing holes in a length direction thereof (preferably, at positions on both sides of the connecting hole), and the upper and lower columns also have through holes at positions corresponding to the fixing holes, respectively, after the connecting pipe member is tightly arranged against inner walls of the upper and lower columns. The fixing holes and the through holes are aligned when the installation is completed, wherein the fixing holes and the through holes are fastened through by fasteners so as to realize the fixed connection of the upright posts and the connecting pipe fittings. The fastener can be a nut (the fixing hole and the through hole need to be provided with matched threads) or a disposable left-hand thread.

The connecting device for connecting the cross beams and the upright posts in an angle manner provided by the invention can be used for connecting any equipment needing the connection in an angle manner, such as the connection of a steel bed (each upright post is vertically connected with two cross beams), the connection of a freely combined bookshelf (the upright post at the middle part is vertically or angularly connected with three cross beams, or the upright posts at two sides are vertically or angularly connected with two cross beams), the connection of various pipe fittings of teaching equipment or office equipment and the like.

The built-in connection device of the present invention may have different variations for different service objects:

for example, for other mechanical connections, the connected columns and beams may be angled: when the steel sheet of the connecting piece is welded with the cross beam, the angle is determined, after the connecting pipe fitting is assembled in a meshing mode, the upper stand column and the lower stand column are sleeved outside the connecting pipe fitting, and the angle connection of the stand columns and the cross beam is achieved.

As another example, in a more general case, the column of the present invention has a square or rectangular cross section, and the concealed connecting device includes four connecting pieces (two of which are welded to the beams on both sides of the beam), but in fact, the concealed connecting device of the present invention includes, for different objects, such as a cylindrical column, a column with a hexagonal cross section, a column with an octagonal cross section, and the like: the connecting pieces can be meshed/meshed to realize the concealed connection mode of the upright post of the N-surface body and a plurality of (1-N) cross beams. For the column with polygonal interface, the preferred built-in connection device comprises connecting pieces equal to the sides of the polygon, for example, the column with hexagonal section is preferably fixed into the connecting tube body with hexagonal section by adopting 6 connecting pieces, but 4-5 (even 3) connecting pieces can also be used for jointing into the connecting tube body with the polygon which is tightly abutted with the inner wall of the column only by the engaging sides and is in a relatively fixed position; at this time, the cross-sectional opening of the pillar may span different surfaces of the pillar according to different connection requirements and different cross beams.

The invention relates to a built-in connecting device which is suitable for connecting different columns in various devices. The appearance of the built-in connecting device cannot be seen, the attractiveness of the built-in connecting device is achieved, and in addition, the connecting device is firmer and more stable due to the mutual meshing mode of the combination of the connecting pieces. Meanwhile, the device is simple in component parts, easy to manufacture and wide in application range, can be widely and randomly combined, does not need too many casting templates, can replace only damaged parts once damage of individual connecting pieces occurs, is simple to repair, prolongs the whole service life of equipment served by the device, and is a novel connecting device integrating attractiveness and practical use.

Drawings

Fig. 1 is an exploded view of an example of the connecting device of the present invention.

Fig. 2 is a schematic view of the coupling parts of the example of the coupling device according to the invention assembled to connect pipe elements.

Fig. 3 is a schematic view of an example of the connecting device of the present invention after the upper and lower columns are installed on the base of fig. 2.

Fig. 4 is a schematic view of an example of the coupling device of the present invention with a nut installed on the base of fig. 3.

Fig. 5 is a top view of an example installed connection device of the present invention.

Wherein the reference numerals are: 1 is an upper upright post, 1-1 is a lower upright post, 2-1, 2-2 and 2-3 are four connecting pieces, 3-1, 3-2 and 3-3 are nuts, 4-1, 4-2 and 4-3 are cross beams, 6 is a bulge, and 6-1 is a bulge groove.

Detailed Description

To facilitate a better understanding of the invention by those skilled in the art, specific embodiments thereof are now presented;

the connecting device of the upright post and the cross beam is provided: the vertical connection device is used for vertically connecting one upright post with four cross beams, each upright post is disconnected at a position needing to be connected and is divided into an upper upright post 1 and a lower upright post 1-1, and four surfaces at the opposite ends are respectively provided with four openings; the cross sections (contact surfaces) of the four beams 4, 4-1, 4-2 and 4-3 to be connected with the upright posts are all long equilateral octagons (or rectangles with trapezoidal bulges on the long sides). The right center of the connecting piece is provided with an equilateral octagonal connecting hole (actually, the shape and the size of the connecting hole are slightly larger than the cross section of the cross beam so as to be penetrated through by the connecting piece), and the connecting pieces 2, 2-1, 2-2 and 2-3 are respectively welded with the cross beams 4, 4-1, 4-2 and 4-3 at the connecting holes so as to be fixedly connected, as shown in figure 1. The connecting pieces 2, 2-1, 2-2 and 2-3 are all rectangular steel sheets (the length is greater than the long side of the rectangular section of the cross beam, after the meshing piece is bent, the width is slightly smaller than the internal width of the upright post), the edge of the length is provided with the meshing piece which is slightly bent for 45 degrees in the opposite direction (compared with the cross beam), the left meshing piece is provided with two bulges 6, and the right meshing piece is provided with two bulge grooves 6-1 which can be glued/meshed and connected at the same position; two sides (in the length direction) of the connecting hole are respectively provided with a fixing hole for inserting the nut. When the connecting pipe is installed, the welded connecting pieces 2, 2-1, 2-2 and 2-3 are connected into a rectangular connecting pipe fitting through meshing of meshing pieces in sequence (figure 2); sleeving an upper upright column 1 and a lower upright column 1-1 (both provided with through holes at corresponding positions) on the outer sides of connecting pipe fittings, wherein the connecting pipe fittings, the upper upright column 1 and the lower upright column 1-1 are tightly abutted against each other, so that a stably connected part is formed (as shown in fig. 3); further, for fixation, nuts 3, 3-1, 3-2 and 3-3 (the opposite nut and corresponding hole are not shown) can be further inserted at the positions of the through hole and the fixing hole to firmly fix the pillar and the connecting pipe (fig. 4; fig. 5).

Furthermore, it should be understood that although the present specification describes embodiments in detail, not every embodiment contains only a single technical solution, and such description is for the sake of clarity only, and those skilled in the art should make the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. A built-in connecting device is used for connecting a cross beam and an upright post in an angle manner, and is characterized by mainly comprising a connecting piece which can be connected with the cross beam, wherein the connecting piece is a sheet-shaped connecting piece, and a plurality of connecting pieces are detachably connected to form a connecting pipe fitting tightly abutted against the inner wall of the upright post; the middle part of the connecting sheet to be connected with the cross beam is provided with a connecting hole, and the size and the shape of the connecting hole are the same as those of a connecting contact surface of the cross beam to be connected with the connecting hole and are used for being fixedly connected with the cross beam; the stand includes two parts of upper column and lower stand, the upper column with the looks remote site of lower stand with the opening has respectively on the face of being connected with the crossbeam, the shape of opening, the size of upper column are the same with the first half of the connection contact surface of crossbeam, the shape of opening, the size of lower stand are the same with the latter half of the connection contact surface of crossbeam for form interior concealed connection structure.

2. The concealed connecting device according to claim 1, wherein said connecting pieces are preferably rectangular, said rectangular connecting pieces having engaging members on both long sides thereof for detachably engaging adjacent said connecting pieces.

3. The concealed connecting device according to claim 1 or 2, wherein the connecting pieces are connected with the cross beams at the positions of the connecting holes by welding or by bending the connecting parts of the cross beams outwards after passing through the connecting holes and anchoring the connecting parts by nuts.

4. The concealed connecting device according to claim 1 or 2, wherein the cross section of the opening on the upright can span different surfaces thereof according to different connecting requirements and different cross beams.

5. The concealed type connecting device according to claim 1 or 2, wherein said connecting piece has a fixing hole in a length direction thereof, and said upper column and said lower column have a through hole at a position corresponding to said fixing hole after said connecting pipe member is closely arranged against inner walls of said upper column and said lower column.

6. The concealed connecting device according to claim 5, wherein said connecting device further comprises a fastener for fixedly connecting said stud with said connecting tube by passing through said fixing hole and said through hole.

7. The concealed connecting device according to claim 2, wherein said engaging members have at least one protrusion and/or at least one protrusion groove, and said protrusions and said protrusion grooves on the engaging members connected to each other of adjacent connecting pieces are the same in number, at the same height, and engaged with each other to fix the adjacent connecting pieces.