CN217231853U - Assembled prestressing force applying device - Google Patents
Assembled prestressing force applying device Download PDFInfo
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- CN217231853U CN217231853U CN202220304419.6U CN202220304419U CN217231853U CN 217231853 U CN217231853 U CN 217231853U CN 202220304419 U CN202220304419 U CN 202220304419U CN 217231853 U CN217231853 U CN 217231853U
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- jack
- standard
- applying device
- prestress applying
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Abstract
The utility model relates to an assembly type prestress applying device, which comprises a left node, a plurality of standard nodes and a right node; one end of each of the left node, the standard node and the right node is provided with a guide groove for the flexible joint head to stretch, and the other end of each of the left node, the standard node and the right node is provided with a support platform for being abutted against the steel support; a jack groove for mounting a jack is formed between the adjacent guide grooves; two adjacent nodes directly have a Z-shaped connecting surface. The prestress applying device of the utility model is made into an expandable assembly type, has few nonstandard components, strong assembly performance and convenient disassembly, and can adapt to different foundation pit conditions; the nodes are connected with the end faces in a Z shape, so that the stress of the assembled prestress applying device is more reliable; the leveling bolt adjusts the levelness of the adjustable head to keep the end plate vertical, thereby preventing the jack from being stressed by unbalance loading and prolonging the service life of the jack.
Description
Technical Field
The utility model relates to an assembled prestressing force applying device belongs to construction technical field.
Background
In order to ensure the safety of the construction of the underground structure and the surrounding environment of the foundation pit, the side wall of the foundation pit and the surrounding environment need to be supported, reinforced and protected. In deep foundation pit engineering of high-rise buildings and subway construction, most of the deep foundation pit engineering is excavated in cities, various structures such as traffic roads, built buildings or pipelines and the like usually exist around the foundation pit, and a steel structure inner support system is widely applied in order to ensure the safety of the surrounding environment of the foundation pit, save the construction period and save the cost.
Among the prior art, prestressing force applying device can't be according to supporting shaped steel quantity adjustment, does not have the expansibility, but the assemblability is not good, will lead to connecting overweight, demolishs the difficulty.
Disclosure of Invention
The utility model aims at providing an assembled prestressing force applying device makes prestressing force applying device into assembled, and nonstandard component is few, and the assembling nature is strong, demolishs the convenience, adaptable different foundation ditch condition.
The utility model adopts the following technical proposal:
an assembled prestress applying device comprises a left node 1, a plurality of standard nodes 2 and a right node 3; one end of each of the left node 1, the standard node 2 and the right node 3 is provided with a guide groove for the flexible joint 4 to stretch, and the other end of each of the left node 1, the standard node 2 and the right node 3 is provided with a support platform for being abutted against a steel support; a jack groove 5 for mounting a jack is formed between the adjacent guide grooves; two adjacent nodes have a zigzag connecting surface 6 directly.
Preferably, the upper parts of the guide grooves of the left node 1, the standard node 2 and the right node 3 are provided with threaded holes into which leveling bolts 7 extend, and the leveling bolts downwards press the moving head 4 to maintain the level of the moving head 4.
Preferably, the movable head 4 is abutted to a secondary casting structure on the foundation pit.
Preferably, the left node 1 and the right node 3 are respectively provided with a front extending arm used for being hung on the reinforced concrete beam.
Preferably, the jack is placed in the jack groove 5, prestress is applied through jacking of the jack, and then the steel wedge block is driven into the reserved hole of the adjustable head to perform pressure maintaining.
Preferably, the zigzag connecting surface 6 has three planes, and the three planes are fixedly connected with the zigzag connecting surface 6 of the adjacent node through bolts.
The beneficial effects of the utility model reside in that:
1) the prestress applying device is made into an expandable assembly type, the number of nonstandard components is small, the assembly is strong, the dismounting is convenient, and the device can adapt to different foundation pit conditions.
2) The end surfaces are connected in a Z shape between the nodes, so that the stress of the assembled prestress applying device is more reliable.
3) The leveling bolt adjusts the levelness of the adjustable head to keep the end plate vertical, thereby preventing the jack from being stressed by unbalance loading and prolonging the service life of the jack.
Drawings
Fig. 1 is a plan view of the assembled prestressing force applying device according to the present invention after assembly.
Fig. 2 is a schematic diagram of the left node.
Fig. 3 is a schematic diagram of a standard node.
Fig. 4 is a schematic diagram of a right node.
In the figure, 1 is a left node, 2 is a standard node, 3 is a right node, 4 is a flexible head, 5 is a jack groove, 6 is a Z-shaped connecting surface, and 7 is a leveling bolt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, an assembled prestress applying device includes a left node 1, a plurality of standard nodes 2, and a right node 3; one end of each of the left node 1, the standard node 2 and the right node 3 is provided with a guide groove for the flexible joint 4 to stretch, and the other end of each of the left node 1, the standard node 2 and the right node 3 is provided with a support platform for being abutted against a steel support; a jack groove 5 for mounting a jack is formed between the adjacent guide grooves; two adjacent nodes have a zigzag connecting surface 6 directly. It should be noted that only one standard node is shown in fig. 1, and actually, a plurality of standard nodes may be provided, and the standard nodes are adjacent to each other in sequence.
Referring to fig. 1-4, the upper portions of the guide grooves of the left node 1, the standard node 2, and the right node 3 are provided with threaded holes into which leveling bolts 7 extend, and the leveling bolts press the looping head 4 downward to maintain the looping head 4 horizontal. Since the drawings are top views, the leveling bolt 7 is shown as a point on the drawings, but this does not affect the understanding of those skilled in the art.
In this embodiment, the activating head 4 abuts against a secondary cast structure on the foundation pit. The figures are not shown in detail for this purpose.
In this embodiment, the left node 1 and the right node 3 are respectively provided with a front extending arm for hanging on a reinforced concrete beam, so that the firmness can be improved, which is not shown in the attached drawings.
In the embodiment, the jack is placed in the jack groove 5, prestress is applied through jacking of the jack, and then a steel wedge block is driven into a reserved hole of the adjustable head to perform pressure maintaining. The figures do not show the jack.
In this embodiment, as shown in fig. 1, the zigzag-shaped joint face 6 has three planes, and the three planes are fixedly connected to the zigzag-shaped joint face 6 of the adjacent node by bolts.
When the assembly type prestress applying device is installed, one end of the assembly type prestress applying device is connected with a steel support through a bolt, and the other end of the assembly type prestress applying device is propped against a secondary pouring structure and is connected and lapped with a front extending arm and a reinforced concrete beam; the jack is placed in a jack groove, prestress is applied through jacking, then a steel wedge block is driven into a reserved hole of the adjustable head to maintain pressure, and the prestress is removed; the assembled prestress applying device consists of a left node, a standard node, a right node and a movable head, wherein the levelness of the movable head can be adjusted by leveling bolts on the left node, the standard node and the right node, so that the movable head is prevented from eccentric stress; the nodes are connected with end faces in a Z shape, so that the stress of the assembled prestress applying device is more reliable.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements without departing from the general concept of the present invention, and all such changes or improvements should fall within the scope of the present invention.
Claims (5)
1. An assembled prestressing force applying device, characterized in that:
comprises a left node (1), a plurality of standard nodes (2) and a right node (3);
one end of each of the left node (1), the standard node (2) and the right node (3) is provided with a guide groove for the flexible movement head (4) to stretch, and the other end of each of the left node, the standard node and the right node is provided with a supporting platform for being abutted against a steel support;
a jack groove (5) for mounting a jack is formed between the adjacent guide grooves;
two adjacent nodes directly have a Z-shaped connecting surface (6).
2. The fabricated prestress applying apparatus as set forth in claim 1, wherein: the upper parts of the guide grooves of the left node (1), the standard node (2) and the right node (3) are provided with threaded holes for the leveling bolts (7) to extend into, and the leveling bolts downwards support and press the moving head (4) to maintain the level of the moving head (4).
3. The fabricated prestress applying apparatus as set forth in claim 1, wherein: the movable head (4) is connected to the secondary casting structure on the foundation pit in an abutting mode.
4. The fabricated prestress applying device according to claim 1, wherein: the left node (1) and the right node (3) are respectively provided with a front extending arm used for being hung on the reinforced concrete beam.
5. The fabricated prestress applying apparatus as set forth in claim 1, wherein: the Z-shaped connecting surface (6) is provided with three planes which are fixedly connected with the Z-shaped connecting surface (6) of the adjacent node through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220304419.6U CN217231853U (en) | 2022-02-15 | 2022-02-15 | Assembled prestressing force applying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220304419.6U CN217231853U (en) | 2022-02-15 | 2022-02-15 | Assembled prestressing force applying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217231853U true CN217231853U (en) | 2022-08-19 |
Family
ID=82832942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220304419.6U Active CN217231853U (en) | 2022-02-15 | 2022-02-15 | Assembled prestressing force applying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217231853U (en) |
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2022
- 2022-02-15 CN CN202220304419.6U patent/CN217231853U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhongguancun Technology Leasing Co.,Ltd. Assignor: Shanghai Jukun Technology Co.,Ltd. Contract record no.: X2023980035096 Denomination of utility model: A prefabricated prestressed application device Granted publication date: 20220819 License type: Exclusive License Record date: 20230425 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A prefabricated prestressed application device Effective date of registration: 20230427 Granted publication date: 20220819 Pledgee: Zhongguancun Technology Leasing Co.,Ltd. Pledgor: Shanghai Jukun Technology Co.,Ltd. Registration number: Y2023980039520 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |