1. A section bar connecting piece which characterized in that: including two connecting portions, each connecting portion includes: base and rotation portion, the base has the binding face that can laminate with the section bar, rotation portion can rotate for the base around first axis, first axis perpendicular to binding face, one side of rotation portion has pivot portion, pivot portion has the second axis, and two connecting portion realize rotating the connection through pivot portion, two pivot portions the second axis coincidence, first axis is perpendicular with the second axis.

2. The profile connector according to claim 1, wherein: one connecting part of the profile connecting piece is connected with the end part of one profile, and the other connecting part of the profile connecting piece is connected with the end part or the side part of the other profile.

3. The profile connector according to claim 2, wherein: the base is rectangular or square, and the rotating part is circular.

4. The profile connector according to claim 3, wherein: the base comprises a base and a panel, the base comprises a bottom plate and a vertical plate, the vertical plate is positioned at the peripheral edge of the bottom plate and is vertical to the bottom plate, the peripheral edge of the panel is attached to the top surface of the vertical plate, and a circular opening is formed in the middle of the panel; the periphery of the rotating part is provided with a circular groove, and the edge of the circular opening is embedded into the circular groove and can rotate relative to the circular groove.

5. The profile connector according to claim 4, wherein: the rotating part comprises a lower plate and an upper plate, the lower plate and the upper plate are both annular, the upper plate and the lower plate jointly form the annular groove, and the rotating shaft part and the upper plate are integrally formed.

6. The profile connector according to claim 5, wherein: the periphery of the upper plate is provided with an annular concave part with an L-shaped cross section, the annular concave part and the upper surface of the lower plate form an annular groove together, the upper plate is provided with a rotating part positioning screw hole, and the rotating part positioning screw hole is communicated with the upper surface of the upper plate and the upper surface of the panel.

7. The profile connector according to any one of claims 4 to 6, wherein: a strip-shaped hole is formed in the center of the bottom plate, and a round hole with the aperture larger than the width of the strip-shaped hole is formed in the middle of the strip-shaped hole.

8. The profile connector according to claim 1, wherein: the rotating shaft part is provided with a shaft hole, and the axis of the shaft hole is the second axis; the locking screw sequentially penetrates through the shaft holes of the two rotating shaft parts, when the locking screw is in an unlocked state, the two rotating shaft parts can rotate relatively, and when the locking screw is in a locked state, the two rotating shaft parts cannot rotate relatively.

9. The profile connector according to claim 7, wherein: when the connecting part is connected with the end part of the section bar, a three-card lock is arranged in the section bar, and the three-card lock is provided with a latch, so that the latch of the three-card lock latches the strip-shaped hole, and the connecting part is fixedly connected with the end part of the section bar; when connecting portion are connected with the lateral part of section bar, set up the locking piece between section bar and connecting portion, the locking piece is including consecutive knob portion, spliced pole and the card portion of blocking, the card portion of blocking has the joint inclined plane, the joint inclined plane is located one side of spliced pole, and the lateral part of section bar has the logical groove that extends along section bar length direction, makes the card portion of blocking pass the bar hole and get into in leading to the inslot, will knob portion rotation 90 degrees, the joint inclined plane joint of the card portion of this moment supports tightly the inslot wall that leads to the groove to realize the fixed connection of connecting portion and section bar lateral part.

10. The profile connector according to claim 9, wherein: the bottom surface of the bottom plate is provided with a positioning bulge, and the positioning bulge is used for being inserted into the through groove from the side part or the end part of the sectional material; the upper plate and the lower plate are connected through a first screw, and the bottom plate and the panel are connected through a second screw.

Background

In the existing exhibition and display system, all use the section bar as the frame material, and in order to form the exhibition platform of various different shapes, need to make and present different connection angles and relative positions between two adjacent section bars, and in order to realize this purpose, the existing section bar can only adopt the way that three kaysers, section bar cutting, spiro union or welding three mutually cooperate, and such technical scheme has following shortcoming: 1) the processing and connecting process is very complicated, and consumes a large amount of manpower, material resources and time. 2) In order to obtain accurate connection angle and relative position between the sectional materials, the end parts of the sectional materials are required to be repeatedly cut for many times, and the sectional materials are easily scrapped due to excessive cutting. 3) The multi-dimensional accurate and quick connection between the sectional materials cannot be realized.

Therefore, there is a need for a profile connecting member that can achieve accurate and rapid connection between adjacent profiles in multiple dimensions, and is time-saving, labor-saving, economical and convenient to connect.

Disclosure of Invention

The invention aims to overcome the defects and provides a profile connecting piece which comprises two connecting parts, wherein each connecting part comprises a base, a rotating part is arranged on each base, and the rotating parts can rotate 360 degrees around a first axis which is vertical to the binding surface of the base and the profile; meanwhile, one side of the rotating part is provided with a rotating shaft part, the rotating shaft is provided with a second axis, the second axis is perpendicular to the first axis, and the two connecting parts are connected with each other through the rotating shaft part, so that the two connecting parts can rotate around the second axis. During the use, be fixed in a section bar with the laminating respectively of the base of two connecting portion on, alright realize demonstrate different connection angle and relative position between the two adjacent section bars, connect accurate quick, labour saving and time saving, economy is convenient.

The technical scheme of the invention is as follows: a section bar connecting piece which characterized in that: including two connecting portions, each connecting portion includes: base and rotation portion, the base has the binding face that can laminate with the section bar, rotation portion can rotate for the base around first axis, first axis perpendicular to binding face, one side of rotation portion has pivot portion, pivot portion has the second axis, and two connecting portion realize rotating the connection through pivot portion, two pivot portions the second axis coincidence, first axis is perpendicular with the second axis.

Preferably, the base is rectangular or square, and the rotating part is circular.

Preferably, the base comprises a base and a panel, the base comprises a bottom plate and a vertical plate, the vertical plate is positioned at the peripheral edge of the bottom plate and is vertical to the bottom plate, the peripheral edge of the panel is attached to the top surface of the vertical plate, and a circular opening is formed in the middle of the panel; the periphery of the rotating part is provided with a circular groove, and the edge of the circular opening is embedded into the circular groove and can rotate relative to the circular groove.

Preferably, the rotating part comprises a lower plate and an upper plate, the lower plate and the upper plate are both circular, the upper plate and the lower plate form the circular groove together, and the rotating shaft part and the upper plate are integrally formed.

Preferably, the periphery of the upper plate is provided with an annular concave part with an L-shaped cross section, the annular concave part and the upper surface of the lower plate form the annular groove, the upper plate is provided with a rotating part positioning screw hole, and the rotating part positioning screw hole is communicated with the upper surface of the upper plate and the upper surface of the panel.

Preferably, a strip-shaped hole is formed in the center of the bottom plate, and a round hole with the aperture larger than the width of the strip-shaped hole is formed in the middle of the strip-shaped hole.

Preferably, the rotating shaft part is provided with a shaft hole, and the axis of the shaft hole is the second axis; the locking screw sequentially penetrates through the shaft holes of the two rotating shaft parts, when the locking screw is in an unlocked state, the two rotating shaft parts can rotate relatively, and when the locking screw is in a locked state, the two rotating shaft parts cannot rotate relatively.

Preferably, one connecting part of the profile connecting piece is connected with the end part of one profile, and the other connecting part of the profile connecting piece is connected with the end part or the side part of the other profile.

Preferably, when the connecting part is connected with the end part of the section bar, a three-card lock is arranged in the section bar, and the three-card lock is provided with a latch, so that the latch of the three-card lock latches the strip-shaped hole, and the connecting part is fixedly connected with the end part of the section bar; when connecting portion are connected with the lateral part of section bar, set up the locking piece between section bar and connecting portion, the locking piece is including consecutive knob portion, spliced pole and the card portion of blocking, the card portion of blocking has the joint inclined plane, the joint inclined plane is located one side of spliced pole, and the lateral part of section bar has the logical groove that extends along section bar length direction, makes the card portion of blocking pass the bar hole and get into in leading to the inslot, will knob portion rotation 90 degrees, the joint inclined plane joint of the card portion of this moment supports tightly the inslot wall that leads to the groove to realize the fixed connection of connecting portion and section bar lateral part.

Preferably, the bottom surface of the bottom plate is provided with a positioning bulge, and the positioning bulge is used for being inserted into the through groove from the side part or the end part of the profile; the upper plate and the lower plate are connected through a first screw, and the bottom plate and the panel are connected through a second screw.

The installation and use processes of the section bar connecting piece are as follows:

the first condition is as follows: two connecting portions of the profile connecting piece are arranged at the end portion of the profile. Under this condition, insert the central cavity of section bar terminal surface with the one end of three kaysers, the other end of three kaysers, the one end that has three latch promptly passes the bar hole that the base middle part set up, finally blocks the bar hole through the latch to realize the fixed connection of connecting portion and section bar tip. After the end parts of the two sectional materials are respectively and fixedly connected with one connecting part, the two connecting parts can realize the rotary connection through the rotating shaft part, so that the change of the included angle between the two sectional materials in the plane where the two sectional materials are positioned can be realized by 0-180 degrees. In addition, because the base is fixed with the section bar, the rotating part can rotate 360 degrees relative to the base around a first axis which is vertical to the binding surface of the base and the end part of the section bar. If one section bar is fixed in position, when external force is applied to the other section bar, the two rotating parts can rotate 360 degrees relative to the respective bases, and at the moment, the two section bars are not coplanar any more. That is to say, coplanar rotation and non-coplanar rotation can be simultaneously realized between the two profiles, so that the relative position and the included angle between the two profiles can be arbitrarily set.

Case two: one connecting part of the profile connecting piece is arranged at the end part of one profile, and the other connecting part is arranged at the side part of the other profile. In this case, the connection between the connecting part and the end of the profile is the same as in the first case, and the connection between the connecting part and the side of the profile is: insert the locking piece in the bar connecting hole of base, make the card portion pass the bar hole and get into the logical inslot that the section bar side set up, with knob portion rotation 90 degrees, the joint inclined plane joint of the card portion of this moment supports tightly at the inslot wall that leads to the groove to realize the fixed connection of base and section bar lateral part. When the two connecting parts are fixed in place, the coplanar rotation and the non-coplanar rotation between the two profiles can be realized, so that the relative positions and the included angles of the two profiles can be set at will.

When the two sectional materials reach the relative position and the included angle required by design, the positioning screws are screwed in the positioning screw holes of the rotating part arranged on the upper plate of the rotating part, and the rotating part and the base can be fixed in position and do not rotate relatively any more in a mode that the positioning screws abut against the base bottom plate; meanwhile, the locking screws arranged in the rotating shafts of the two connecting parts are screwed down to enable the locking screws to be in a locking state, and at the moment, the positions of the two rotating shaft parts are fixed and do not rotate relatively. Therefore, the relative position and the included angle between the two sectional materials can be fixed. Of course, after one dimension is adjusted, the positioning and locking device (the positioning screw or the locking screw) corresponding to the dimension is locked, then the adjustment of the other dimension is performed, and finally the positioning and locking device corresponding to the other dimension is locked.

The disassembly process of the profile connecting piece is opposite to the installation and use process.

Compared with the prior art, the invention has the beneficial effects that:

(1) the connecting structure can realize different connecting angles and relative positions of coplanarity or non-coplanarity between two adjacent sectional materials, is accurate and quick in connection between the sectional materials, saves time and labor, is economical and convenient, and does not need to cut the sectional materials at all.

(2) The section frame with various shapes can be quickly built.

(3) The disassembly and assembly are convenient and quick, the repeated cycle use can be carried out for many times, and the environmental protection performance is good.

Drawings

Fig. 1 is a schematic perspective view of an angle of an embodiment of the profile connector of the present invention.

Fig. 2 is a schematic perspective view of another angle of an embodiment of the profile connector of the present invention.

Fig. 3 is a perspective view of an embodiment of the profile connector according to the invention in a first position between two profiles.

Fig. 4 is a perspective view of an embodiment of the profile connector according to the invention in a second position between two profiles.

Fig. 5 is a perspective view of an embodiment of the profile connector according to the invention in a third position between two profiles.

Fig. 6 is a perspective view of an embodiment of the profile connector according to the invention in a fourth position between two profiles.

Fig. 7 is a perspective view of an embodiment of the profile connector according to the invention in a first position between two profiles in the second case.

Fig. 8 is a perspective view of an embodiment of the profile connector according to the invention in a second position between two profiles.

Fig. 9 is a perspective view of an embodiment of the profile connector according to the invention in a third position between two profiles in the second case.

Fig. 10 is a perspective schematic view of a locking element of an embodiment of the profile connector of the present invention.

Fig. 11 is a schematic perspective cross-sectional view of an angle of a connection portion of an embodiment of the profile connector of the present invention.

Fig. 12 is a schematic cross-sectional perspective view of another angle of the connecting portion of one embodiment of the profile connector of the present invention.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments:

referring to fig. 1-12, a profile connector includes two connecting portions, each of the connecting portions including: the base comprises a base 1 and a rotating part 2, wherein the base is provided with a binding surface 10 which can be attached to a profile, the rotating part can rotate relative to the base around a first axis 11, the first axis is perpendicular to the binding surface, one side of the rotating part is provided with a rotating shaft part 20, the rotating shaft part is provided with a shaft hole 200, the axis of the shaft hole is a second axis 21, the second axes of the two rotating shaft parts are overlapped, and the first axis 11 is perpendicular to the second axis 21; the locking device is characterized by further comprising locking screws 3, wherein the locking screws sequentially penetrate through the shaft holes of the two rotating shaft portions, when the locking screws are in an unlocked state, the two rotating shaft portions can rotate relatively, and when the locking screws are in a locked state, the two rotating shaft portions cannot rotate relatively. The base is square, and the rotating part is circular; the base comprises a base and a panel 12, the base comprises a bottom plate 13 and a vertical plate 14, the vertical plate is positioned at the peripheral edge of the bottom plate and is vertical to the bottom plate, the peripheral edge of the panel is attached to the top surface of the vertical plate, and the middle of the panel is provided with a circular opening 120; the rotating part comprises a lower plate 22 and an upper plate 23, the lower plate and the upper plate are both circular, a circular concave part 230 with an L-shaped cross section is formed in the periphery of the upper plate, a circular groove 231 is formed by the circular concave part and the upper surface of the lower plate together, and the rotating shaft part and the upper plate are integrally formed. The edge of the circular opening is embedded into the circular ring-shaped groove and can rotate relative to the circular ring-shaped groove. The upper plate is provided with a rotating part positioning screw hole 232 which is communicated with the upper surface 233 of the upper plate and the upper surface 121 of the panel. A strip-shaped hole 130 is formed in the center of the bottom plate, and a round hole 131 with the aperture larger than the width of the strip-shaped hole is formed in the middle of the strip-shaped hole. The section 4 is a square section with the same four-side structure, each side part of the section is provided with a through groove 41 extending along the length direction of the section, and the bottom surface of the bottom plate is provided with a positioning bulge 132 used for being inserted into the through groove from the side part or the end part of the section; the upper and lower plates are connected by first screws 24 and the base plate is connected to the panel by second screws 15.

Case one (see fig. 3-6): one connecting part of the profile connecting piece is connected with the end part of one profile, and the other connecting part of the profile connecting piece is connected with the end part of the other profile. In the first position, the two profiles are in the same plane, and the included angle between the two profiles is approximately 90 degrees (see fig. 3); when an in-plane external force is applied to the right profile, the right connecting part can rotate around the rotating shaft part as an axis relative to the left connecting part, so that the right profile rotates relative to the left profile in a plane where the two profiles are located, the included angle of the two profiles becomes an acute angle, the two profiles can be located at a second position and still located in the same plane (see fig. 4), and the locking screw can be locked; then, if a torsional force is applied to the right section bar by taking the central extension line of the right section bar as an axis, the base of the right connecting part can rotate relative to the right rotating part, so that the right section bar rotates relative to the left section bar beyond the plane, and the two section bars can be positioned at a third position (see fig. 5); of course, if a rotational force is applied to the right-side profile about the extension line of the center of the left-side profile, the rotational portion of the left-side connecting portion can rotate relative to the left-side base, so that another rotation of the right-side profile relative to the left-side profile is generated beyond the aforementioned plane, and the two profiles can be located at a fourth position (see fig. 6). Therefore, different connection angles and relative positions of coplanarity or non-coplanarity can be formed between the two profiles.

Case two (see fig. 7-9): one connecting part of the profile connecting piece is connected with the end part of one profile, and the other connecting part of the profile connecting piece is connected with the side part of the other profile. Similarly, when in the first position, the two profiles are in the same plane, and the included angle between the two profiles is a large acute angle (see fig. 7); when an in-plane external force is applied to the right profile, the right connecting part can rotate around the rotating shaft part as an axis relative to the left connecting part, so that the right profile rotates relative to the left profile in a plane where the two profiles are positioned, the included angle of the two profiles is changed into a smaller acute angle, the two profiles can be positioned at a second position and still positioned in the same plane (see fig. 8), and the locking screw can be locked; thereafter, if a rotational force is applied to the right-side profile about a first axis perpendicular to the contact surface of the left-side base and the left-side profile, the rotational portion of the left-side connecting portion can rotate relative to the left-side base, and the right-side profile can rotate relative to the left-side profile beyond the plane, so that the two profiles can be in a third position (see fig. 9). Therefore, different connection angles and relative positions of coplanarity or non-coplanarity can be formed between the two profiles.

It will be appreciated that the two profiles may be in a variety of different relative positions, the foregoing positions being by way of example only.

When the connecting part is connected with the end part of the section bar, a central through hole 42 which extends along the length of the section bar is arranged in the central position in the section bar, one end of a three-lock 5 is inserted into the central through hole, and the other end of the three-lock is provided with a latch 50, so that the latch of the three-lock locks latches the strip-shaped hole, the base is fixed with the end part of the section bar, and the fixed connection of the connecting part and the end part of the section bar is realized;

when connecting portion are connected with the lateral part of section bar, set up locking piece 6 between section bar and connecting portion, the locking piece is including consecutive knob portion 60, spliced pole 61 and the card portion of blocking 62, the card portion of blocking has joint inclined plane 620, the joint inclined plane is located one side of spliced pole makes the card portion of blocking pass the bar hole and get into lead to the inslot, will knob portion rotates 90 degrees, and the joint inclined plane joint of the card portion of blocking is in tightly at this moment lead to the inslot wall 410 of groove to realize that base and section bar lateral part are fixed, and then realize the fixed connection of connecting portion and section bar lateral part.

The invention has the advantages that:

(1) the connecting structure can realize different connecting angles and relative positions of coplanarity or non-coplanarity between two adjacent sectional materials, is accurate and quick in connection between the sectional materials, saves time and labor, is economical and convenient, and does not need to cut the sectional materials at all.

(2) The section frame with various shapes can be quickly built.

(3) The disassembly and assembly are convenient and quick, the repeated cycle use can be carried out for many times, and the environmental protection performance is good.

Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.