CN218716852U - Longitudinal connecting device for grating arch frame - Google Patents
Longitudinal connecting device for grating arch frame Download PDFInfo
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- CN218716852U CN218716852U CN202223039615.4U CN202223039615U CN218716852U CN 218716852 U CN218716852 U CN 218716852U CN 202223039615 U CN202223039615 U CN 202223039615U CN 218716852 U CN218716852 U CN 218716852U
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- longitudinal connecting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a longitudinal connecting device for a grille arch, which comprises a first connecting unit, a longitudinal connecting reinforcing steel bar and a second connecting unit; the first connecting unit is arranged on the upper to-be-connected grille arch, and the second connecting unit is arranged on the lower to-be-connected grille arch; the first connecting unit and the second connecting unit have the same structure and adopt longitudinal connecting mechanisms; the longitudinal connecting mechanism comprises a fixed base plate and a longitudinal rib fixing ring; the fixed backing plate is fixedly arranged at the connecting end of the to-be-connected grid arch, and the longitudinal rib fixing ring is fixedly arranged on the outer side of the fixed backing plate; one end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal bar fixing ring of the first connecting unit in a penetrating way, and the other end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal bar fixing ring of the second connecting unit in a penetrating way; the utility model fixes and penetrates the longitudinal connecting steel bar in the longitudinal bar fixing ring, thus realizing the connection of the grille arch center; the field welding construction is not needed, the construction efficiency is high, and the construction risk is greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of the tunnel construction, in particular to a vertical connecting device for grid bow member.
Background
At present, after the tunnel is excavated, a grid arch frame is mostly adopted for supporting; in order to enhance the integrity and stability of the grid arch, two adjacent grid arches are usually connected by welding longitudinal connecting ribs; the on-site welding is time-consuming and labor-consuming, and the construction efficiency is reduced; meanwhile, the quality problems of insufficient solder joint, cracks and the like which are difficult to solve on site exist; in addition, high temperature welding operations can create unpredictable safety issues in the cavern; therefore, in order to improve the construction efficiency and the construction quality and ensure the safety of tunnel operation, a non-welding connecting device is continuously provided to replace the traditional in-tunnel welding method.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides a vertical connecting device for grid bow member to in solving current two pin grid bow member connection process, owing to adopt welded fastening's mode, lead to the efficiency of construction low, the connection quality can't be guaranteed, and there is the technical problem of great potential safety hazard.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a longitudinal connecting device for grille arch frames, which is arranged between two adjacent grille arch frames; the longitudinal connecting device comprises a first connecting unit, a longitudinal connecting steel bar and a second connecting unit; the first connecting unit is arranged on the upper to-be-connected grille arch, and the second connecting unit is arranged on the lower to-be-connected grille arch;
the first connecting unit and the second connecting unit have the same structure and adopt longitudinal connecting mechanisms;
the longitudinal connecting mechanism comprises a fixed base plate and a longitudinal rib fixing ring; the fixing base plate is fixedly arranged at the connecting end of the to-be-connected grid arch, and the longitudinal rib fixing ring is fixedly arranged on the outer side of the fixing base plate; one end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal bar fixing ring of the first connecting unit in a penetrating mode, and the other end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal bar fixing ring of the second connecting unit in a penetrating mode.
Further, the longitudinal rib fixing ring comprises an opening ring and a fastening bolt; the opening circular ring is fixed on the outer side of the fixed base plate, and the center line of the opening circular ring is arranged in parallel with the main rib of the grille arch to be connected;
two sides of the opening end of the opening circular ring are respectively provided with a locking plate; the locking plate is provided with a through hole, and the fastening bolt is arranged in the through hole; one end of the fastening bolt is fixedly connected with one locking plate, and the other end of the fastening bolt is fixedly connected with the other locking plate.
Furthermore, the opening ring and the fixed backing plate are fixed by welding.
Furthermore, the fixed backing plate is welded and fixed on a main rib of the to-be-connected grid arch frame.
Furthermore, the longitudinal connecting mechanisms are uniformly distributed at intervals along the connecting ends of the to-be-connected grid arches.
Furthermore, on the same to-be-connected grating arch frame, the distance between two adjacent longitudinal connecting mechanisms is 0.8-1.2m.
Further, the fixed backing plate is a rectangular steel backing plate.
Furthermore, the model of the longitudinal connecting steel bar is matched with the model of the main bar of the to-be-connected grille arch frame
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a longitudinal connecting device for grille arch frames, which is characterized in that longitudinal connecting structures are respectively arranged at the connecting ends of two adjacent pin grille arch frames; the fixed backing plate and the longitudinal rib fixed ring in the longitudinal connecting mechanism can be pre-installed at the connecting end of the grille arch, and the connection of the grille arch can be realized only by fixedly penetrating the longitudinal connecting reinforcing steel bar into the longitudinal rib fixed ring in the connection process of the grille arch; the quality of the connecting structure is ensured without field welding construction; the device is simple in structure, convenient to operate and high in construction efficiency, and construction risks are greatly reduced.
Furthermore, the longitudinal rib fixing ring adopts an opening ring, and the opening ring is fastened by a fastening bolt, so that the reliable connection of the longitudinal connecting steel bar and the longitudinal fixing ring is ensured, and the connection effect of the grid arch is ensured; meanwhile, the size of the opening ring can be adjusted, the longitudinal connecting steel bars can be conveniently installed, and the construction efficiency is effectively improved.
Drawings
Fig. 1 is a schematic structural view of the longitudinal connecting device of the present invention.
Wherein, 1 fixed backing plate, 2 opening rings, 3 fastening bolt.
Detailed Description
In order to make the technical problem solved by the present invention, technical solution and beneficial effect are more clearly understood, and the following specific embodiments are right for the present invention to proceed further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the present invention provides a longitudinal connecting device for grid arches, which is used for connecting two adjacent grid arches; the longitudinal connecting device is arranged between two adjacent grate arches and comprises a first connecting unit, longitudinal connecting reinforcing steel bars and a second connecting unit; the first connecting unit is arranged on the upper to-be-connected grille arch, and the second connecting unit is arranged on the lower to-be-connected grille arch; the longitudinal connecting steel bar is arranged between the first connecting unit and the second connecting unit, one end of the longitudinal connecting steel bar is fixedly connected with the first connecting unit, and the other end of the longitudinal connecting steel bar is fixedly connected with the second connecting unit.
The first connecting unit and the second connecting unit have the same structure and adopt longitudinal connecting mechanisms; the longitudinal connecting mechanism comprises a fixed base plate 1 and a longitudinal rib fixing ring; the fixed backing plate 1 is fixedly arranged at the connecting end of the to-be-connected grid arch centering; the fixed base plate 1 is a rectangular cylinder base plate, and the fixed base plate 1 is welded and fixed on a main rib of a grid arch to be connected; the longitudinal rib fixing ring is fixedly arranged on the outer side of the fixing base plate 1, and the central line of the longitudinal rib fixing ring is arranged in parallel with the main rib of the to-be-connected grating arch frame; namely, the longitudinal rib fixing ring and the end surface of the connecting end of the to-be-connected grid arch are positioned in the same vertical plane; the longitudinal rib fixing ring and the fixing base plate 1 are fixed by welding; one end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal fixing ring of the first connecting unit in a penetrating mode, and the other end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal bar fixing ring of the second connecting unit in a penetrating mode; preferably, the type of the longitudinal connecting steel bar is matched with the type of a main bar of the to-be-connected grid arch.
The longitudinal rib fixing ring comprises an opening ring 2 and a fastening bolt; the opening circular ring 2 is fixedly arranged on the outer side of the fixed base plate 1, and the center line of the opening circular ring 2 is arranged in parallel with the main rib of the to-be-connected grille arch; one end of the longitudinal connecting steel bar is fixedly arranged in the opening ring of the first connecting unit in a penetrating mode, and the other end of the longitudinal connecting steel bar is fixedly arranged in the opening ring of the second connecting unit in a penetrating mode; preferably, the opening ring 2 and the fixed backing plate 1 are fixed by welding; the opening end of the opening ring 2 is arranged at one side far away from the fixed base plate 1, the two sides of the opening end of the opening ring 2 are respectively provided with a locking plate, and the locking plates are provided with through holes; the fastening bolt 3 is installed in the through hole; one end of the fastening bolt 3 is fixedly connected with one of the locking plates, and the other end of the fastening bolt 3 is fixedly connected with the other locking plate.
In the utility model, the longitudinal connecting mechanisms are evenly distributed at intervals along the connecting ends of the grid arches to be connected; wherein, the distance between two longitudinal connecting mechanisms connected on the same to-be-connected grating arch center is 0.8-1.2m; the longitudinal connecting mechanisms are uniformly arranged at the connecting ends of the to-be-connected grating arches and are fixedly connected together by using longitudinal connecting steel bars, so that reliable connection between two adjacent grating arches is ensured.
The construction process and the working principle are as follows:
when the longitudinal connecting device for the grid arch of the utility model is used, in the processing process of the grid arch, a fixed backing plate 1 is welded on the main rib of the connecting end of the grid arch according to the annular space required by design, and an opening ring 2 is fixedly welded and fixed on the fixed backing plate 1; then, assembling the grid arch frame according to the design requirement; then, inserting one end of the longitudinal connecting steel bar into the opening ring on the last grid arch, and inserting the other end of the longitudinal connecting steel bar into the opening ring on the next grid arch; finally, fastening the locking plate of the split ring by using a fastening bolt; and at this point, the connection of two adjacent grid arches is completed.
The longitudinal connecting device for the grille arch of the utility model fixes the fixed backing plate on the main bar of the grille reinforcing bar by welding, and fixes the opening ring on the fixed backing plate by welding; the welding and mounting processes of the fixed base plate and the opening ring are finished by adopting a processing process of the grating arch frame, and can be realized by centralized processing in a factory; the opening circular ring is fastened and fixed by fastening bolts, and the size of the opening circular ring can be adjusted between the fastening bolts, so that the insertion of longitudinal connecting steel bars is facilitated; the longitudinal connecting steel bars and the opening circular rings are fixedly connected together, and reliable connection between two adjacent truss arch frames is ensured; the utility model discloses use nimble, fixed firm, the installation effectiveness is high, is applicable to the tunnel engineering who adopts the grid bow member as supporting construction.
The above embodiment is only one of the embodiments that can realize the technical solution of the present invention, and the scope of the present invention is not limited only by the embodiment, but also includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention.
Claims (8)
1. A longitudinal connecting device for grid arches is characterized in that the longitudinal connecting device is arranged between two adjacent grid arches; the longitudinal connecting device comprises a first connecting unit, a longitudinal connecting steel bar and a second connecting unit; the first connecting unit is arranged on the upper to-be-connected grille arch, and the second connecting unit is arranged on the lower to-be-connected grille arch;
the first connecting unit and the second connecting unit have the same structure and adopt longitudinal connecting mechanisms;
the longitudinal connecting mechanism comprises a fixed base plate (1) and a longitudinal rib fixing ring; the fixed backing plate (1) is fixedly arranged at the connecting end of the to-be-connected grid arch, and the longitudinal rib fixing ring is fixedly arranged on the outer side of the fixed backing plate (1); one end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal bar fixing ring of the first connecting unit in a penetrating mode, and the other end of the longitudinal connecting steel bar is fixedly arranged in the longitudinal bar fixing ring of the second connecting unit in a penetrating mode.
2. A longitudinal connection device for a grid arch according to claim 1, characterised in that the longitudinal tendon fixing ring comprises an open circular ring (2) and a fastening bolt (3); the opening circular ring (2) is fixed on the outer side of the fixed base plate (1), and the center line of the opening circular ring (2) is arranged in parallel with the main rib of the to-be-connected grating arch frame;
two sides of the opening end of the opening circular ring (2) are respectively provided with a locking plate; the locking plate is provided with a through hole, and the fastening bolt (3) is arranged in the through hole; one end of the fastening bolt (3) is fixedly connected with one locking plate, and the other end of the fastening bolt (3) is fixedly connected with the other locking plate.
3. A longitudinal connection device for a grid arch according to claim 2, characterised in that the open ring (2) is fixed to the fixing plate (1) by welding.
4. Longitudinal joint for a grid arch, according to claim 1, characterised in that said fixing plate (1) is welded to the main bars of the grid arch to be joined.
5. A longitudinal connection for a grid arch according to claim 1, wherein the longitudinal connections are evenly spaced along the connected ends of the grid arch to be connected.
6. A longitudinal connecting device for a grid arch according to claim 1, wherein the distance between two adjacent longitudinal connecting means on the same grid arch to be connected is 0.8-1.2m.
7. A longitudinal connection device for a grid arch, according to claim 1, characterised in that the fixing plate (1) is a rectangular steel plate.
8. A longitudinal connecting device for a grid arch according to claim 1, wherein the type of the longitudinal connecting reinforcement matches the type of the main reinforcement of the grid arch to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223039615.4U CN218716852U (en) | 2022-11-14 | 2022-11-14 | Longitudinal connecting device for grating arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223039615.4U CN218716852U (en) | 2022-11-14 | 2022-11-14 | Longitudinal connecting device for grating arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218716852U true CN218716852U (en) | 2023-03-24 |
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ID=85619366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223039615.4U Active CN218716852U (en) | 2022-11-14 | 2022-11-14 | Longitudinal connecting device for grating arch frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218716852U (en) |
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2022
- 2022-11-14 CN CN202223039615.4U patent/CN218716852U/en active Active
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