CN216922749U - Profiled bar concealed connection fastener - Google Patents
Profiled bar concealed connection fastener Download PDFInfo
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- CN216922749U CN216922749U CN202122773268.7U CN202122773268U CN216922749U CN 216922749 U CN216922749 U CN 216922749U CN 202122773268 U CN202122773268 U CN 202122773268U CN 216922749 U CN216922749 U CN 216922749U
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- trapezoid
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Abstract
The utility model discloses a profiled bar concealed connection fastener which comprises a first connecting plate, a second connecting plate and a connecting rod, wherein the connecting rod is used for connecting the first connecting plate and the second connecting plate; the special-shaped section is a pipe body with a trapezoidal cross section, and the upper bottom of the trapezoid is provided with a through hole through which the connecting rod can pass; the width of the first connecting plate is smaller than the lower bottom of the trapezoid and larger than the upper bottom of the trapezoid. By adopting the technical scheme, compared with the prior art, the connecting fastener disclosed by the utility model does not need welding, is simple in structure and easy to assemble and disassemble, and the connecting structure forms stable connection by utilizing a connecting groove bell mouth (trapezoid) and a connecting piece (bolt tensioning), so that the connecting structure is stable and not easy to slide, and the risk of support collapse is greatly reduced.
Description
Technical Field
The utility model relates to the field of basic building materials, in particular to a profiled bar concealed connection fastener.
Background
The circular steel pipe of the open connection of fastener is generally adopted to set up the support when setting up the support in current building engineering, and its shortcoming lies in:
1. the stability and compressive strength of the bracket erected by the circular steel pipe are insufficient;
2. the circular steel pipes can not be connected flatly by fasteners, and can only be connected flatly by welding;
3. because the connection structure of fastener and circular steel pipe appears sliding easily, has the risk that leads to the support to collapse.
Disclosure of Invention
In order to solve the problems of insufficient stability and compressive strength of a support erected by a round steel pipe in the background technology, the utility model provides a profiled bar concealed connection fastener, and the specific technical scheme is as follows.
A profiled bar concealed connection fastener comprises a first connecting plate, a second connecting plate and a connecting rod for connecting the first connecting plate and the second connecting plate; the special-shaped section is a pipe body with a trapezoidal cross section, and the upper bottom of the trapezoid is provided with a through hole through which the connecting rod can pass; the width of the first connecting plate is smaller than the lower bottom of the trapezoid and larger than the upper bottom of the trapezoid.
Specifically, the connecting rods are two, one ends of the two connecting rods are fixedly connected with the first connecting plate, and the other ends of the two connecting rods are provided with threads.
Preferably, the second connecting plate is provided with a notch which can be penetrated by the connecting rod.
Preferably, the two sides of the first connecting plate are inclined planes, and the inclination angle of the inclined planes is adapted to the inclined sides of the trapezoid.
Preferably, two sides of the second connecting plate are provided with folding edges for limiting the transverse movement of the second connecting plate.
Specifically, the second connecting plate is n-shaped and comprises a convex plate in the middle and wing plates on two sides, and the shape of the convex plate is matched with that of the profiled bar.
Specifically, two connecting rods are arranged, and two first connecting plates are arranged; one end of each of the two connecting rods is fixedly connected with the corresponding first connecting plate, and the other end of each of the two connecting rods is provided with a thread.
Preferably, the wing plate is provided with a notch which can be penetrated by the connecting rod.
Preferably, the two sides of the first connecting plate are inclined planes, and the inclination angle of the inclined planes is adapted to the inclined sides of the trapezoid.
Preferably, two sides of the second connecting plate are provided with folding edges for limiting the transverse movement of the second connecting plate.
By adopting the technical scheme, compared with the prior art, the connecting fastener disclosed by the utility model does not need welding, is simple in structure and easy to assemble and disassemble, and the connecting structure forms stable connection by utilizing the horn mouth (trapezoid) of the connecting groove and the connecting piece (bolt tensioning), so that the connecting structure is stable and not easy to slide, and the risk of support collapse is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a first connecting plate of a profiled bar concealed connecting fastener in embodiment 1 of the utility model;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a structural schematic view of a second connecting plate of the profiled bar concealed connecting fastener in the embodiment 1 of the utility model;
fig. 4 is a schematic structural view of a first connection plate in embodiment 2;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a schematic structural view of a second connecting plate in embodiment 2;
FIG. 7 is a side view of FIG. 6;
fig. 8 is a schematic structural view of a profile;
fig. 9 is a schematic view of the fastener for profile blind connection in example 1;
FIG. 10 is a side view of FIG. 9;
FIG. 11 is a cross-sectional view A-A of FIG. 9;
fig. 12 is a schematic view of the fastener for profile blind connection in example 2;
fig. 13 is a side view of fig. 12.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Example 1
As shown in fig. 1 to 3, a profiled bar blind connecting fastener comprises a first connecting plate 2, a second connecting plate 3 and a connecting rod 4 for connecting the first connecting plate 2 and the second connecting plate 3. As shown in fig. 8, the profiled bar 1 is a tube with a trapezoidal cross section, and a plurality of through holes 11 through which the connecting rods 4 can pass are spaced from the upper bottom of the trapezoid. The width of the first connecting plate 2 is smaller than the lower bottom of the trapezoid and larger than the upper bottom of the trapezoid.
The connecting rods 4 are two, one ends of the two connecting rods 4 are fixedly connected with the first connecting plate 2, and the other ends of the two connecting rods are provided with threads. The second connecting plate 3 is provided with a notch 31 through which the connecting rod 4 can pass. The two sides of the first connecting plate 2 are inclined planes, and the inclination angle of the inclined planes is adapted to the inclined edge of the trapezoid. And folding edges for limiting the transverse movement of the second connecting plate 3 are arranged on two sides of the second connecting plate 3.
As shown in fig. 9-11, in use, two profiled bars 1 are connected end to end, the first connecting plate 2 is placed in the profiled bar 1, the second connecting plate 3 is placed at the upper bottom of the trapezoid, and the connecting rod 4 passes through the through hole 11 and the gap 31 in sequence and then is fastened and connected with the second connecting plate 3 through the bolt 5.
Example 2
As shown in fig. 4-7, a profiled bar blind connecting fastener comprises a first connecting plate 2 ', a second connecting plate 3 ', and a connecting rod 4 ' for connecting the first connecting plate 2 ' and the second connecting plate 3 '. As shown in fig. 8, the profiled bar 1 is a tube with a trapezoidal cross section, and a plurality of through holes 11 are spaced from the upper bottom of the trapezoid for the connecting rods 4' to pass through. The width of the first connecting plate 2' is smaller than the lower bottom of the trapezoid and larger than the upper bottom of the trapezoid.
Specifically, the second connecting plate 3 ' is shaped like a Chinese character ' ji, and includes a convex plate 32 ' at the middle and wing plates 33 ' at two sides, and the shape of the convex plate 32 ' matches with the shape of the profiled bar 1. The connecting rods 4 ' are two, the first connecting plates 2 ' are two, one ends of the two connecting rods 4 ' are fixedly connected with the two first connecting plates 2 ', and the other ends of the two connecting rods 4 ' are both provided with threads. The wing plate 33 ' is provided with a notch 31 ' which can be penetrated by the connecting rod 4 '. Two sides of the first connecting plate 2' are inclined planes, and the inclination angle of the inclined planes is adapted to the inclined side of the trapezoid. Two sides of the wing plate 33 'are provided with folding edges for limiting the transverse movement of the wing plate 33'.
As shown in fig. 12 and 13, when in use, two profiled bars 1 are vertically overlapped, two first connecting plates 2 ' are arranged in the lower profiled bar 1, the second connecting plate 3 ' wraps the upper profiled bar 1, and two connecting rods 4 ' pass through the through holes 11 and the notches 31 ' in sequence and are respectively fastened and connected with two wing plates 33 ' through bolts 5.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A profile hidden connecting fastener is characterized in that: the connecting rod is used for connecting the first connecting plate and the second connecting plate; the special-shaped section is a pipe body with a trapezoidal cross section, and the upper bottom of the trapezoid is provided with a through hole through which the connecting rod can pass; the width of the first connecting plate is smaller than the lower bottom of the trapezoid and larger than the upper bottom of the trapezoid.
2. A profiled blanking joint fastener according to claim 1, wherein: the connecting rod is equipped with two, two the one end of connecting rod with first connecting plate fixed connection, the other end is equipped with the screw thread.
3. A profiled blanking joint fastener according to claim 2, wherein: and the second connecting plate is provided with a notch which can be penetrated by the connecting rod.
4. A profiled blanking joint fastener according to any one of claims 1 to 3, wherein: the two sides of the first connecting plate are inclined planes, and the inclination angle of each inclined plane is matched with the inclined edge of the trapezoid.
5. A profiled blanking joint fastener according to any one of claims 1 to 3, wherein: and folding edges for limiting the transverse movement of the second connecting plate are arranged on two sides of the second connecting plate.
6. A profiled blanking joint fastener according to claim 1, wherein: the second connecting plate is in a shape like a Chinese character 'ji', and comprises a convex plate in the middle and wing plates on two sides, and the shape of the convex plate is matched with that of the profiled bar.
7. A profiled blanking joint fastener according to claim 6, wherein: the number of the connecting rods is two, and the number of the first connecting plates is two; one ends of the two connecting rods are fixedly connected with the two first connecting plates respectively, and the other ends of the two connecting rods are provided with threads.
8. A profiled blanking joint fastener according to claim 6 or 7, wherein: the wing plate is provided with a notch which can be penetrated by the connecting rod.
9. A profiled blanking joint fastener according to claim 6 or 7, wherein: the two sides of the first connecting plate are inclined planes, and the inclination angle of each inclined plane is matched with the inclined edge of the trapezoid.
10. A profiled blanking joint fastener according to claim 6 or 7, wherein: and two sides of the wing plate are provided with folding edges for limiting the transverse movement of the wing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773268.7U CN216922749U (en) | 2021-11-12 | 2021-11-12 | Profiled bar concealed connection fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773268.7U CN216922749U (en) | 2021-11-12 | 2021-11-12 | Profiled bar concealed connection fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922749U true CN216922749U (en) | 2022-07-08 |
Family
ID=82248334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122773268.7U Active CN216922749U (en) | 2021-11-12 | 2021-11-12 | Profiled bar concealed connection fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922749U (en) |
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2021
- 2021-11-12 CN CN202122773268.7U patent/CN216922749U/en active Active
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