Temporary fixing pull rod device for mounting ultrahigh prefabricated column

Abstract

The utility model discloses a temporary fixing pull rod device for mounting an ultrahigh prefabricated column, which comprises an inclined support rod, the inclined support rod mainly comprises a slide rod, the upper end and the lower end of the slide rod are respectively provided with a drag hook, a screw rod and a screw rod sleeve, the screw rod sleeves are fixed at the two ends of the slide rod, one end of the screw rod is fixedly connected with the drag hook, and the other end of the screw rod is fixedly connected with the slide rod. One end of the inclined supporting rod is rotatably connected with the supporting rod, the other end of the inclined supporting rod is rotatably connected with the sliding rod through a lead screw sleeve, the directions of lead screw openings in the upper end and the lower end of the sliding rod are opposite, and the sliding rod is provided with an adjusting handle convenient to hold by hand, compared with the prior art, the inclined supporting rod greatly simplifies the construction difficulty of an ultrahigh prefabricated column installation temporary fixing device, and the working efficiency is improved. The length of the inclined supporting rods can be flexibly adjusted, the good deformation coordination capacity is achieved, the device can be suitable for temporary fixing of prefabricated columns with different heights, and good applicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction, and in particular to a temporary fixing tie rod device for the installation of ultra-high precast columns. Background Technology

[0002] In 2020, the state proposed promoting the factory production of steel and concrete components, as well as precast concrete wall panels, composite floor slabs, stairs, and other general-purpose components to meet standardized design and selection requirements, expand the scale of use of standardized components and parts, and gradually reduce the production costs of components and parts. The use of precast components greatly shortens the construction cycle, improves engineering production efficiency, and effectively reduces costs, which is in line with the concept of energy conservation, environmental protection, and green production, and has good economic benefits.

[0003] Currently, there are three methods for temporary fixing of precast columns: fixing with hangers, fixing with hangers, and fixing with brackets. The "20G310-3 Construction of Connection Nodes for Precast Concrete Structures" specifies that when using diagonal bracing members as temporary fixing measures for precast columns, diagonal bracing should be installed on all four column surfaces, and the form of the nodes at both ends should meet the requirements for bearing load.

[0004] Because some projects have high factory building heights, the height of precast columns exceeds that of conventional precast columns, and the precast columns are heavy, if brackets are used for fixing, the diagonal bracing rods are difficult to install during actual construction, and the fixed length of the rods cannot be flexibly adjusted, which cannot meet the usage requirements of precast columns of various heights and has low applicability. The fixed length of the rods also results in poor deformation capacity, which cannot meet the performance requirements. Utility Model Content

[0005] The purpose of this invention is to provide a temporary fixing tie rod device suitable for the installation of ultra-high precast columns.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a temporary fixing tie rod device for the installation of ultra-high precast columns, including an inclined support rod, the inclined support rod mainly composed of a sliding rod, the upper and lower ends of the sliding rod are provided with hooks, lead screws and lead screw sleeves, the lead screw sleeves are fixed to both ends of the sliding rod, one end of the lead screw is fixedly connected to the hook, and the other end is rotatably connected to the sliding rod through the lead screw sleeve, the lead screw threads at the upper and lower ends of the sliding rod are in opposite directions, and the sliding rod is provided with an adjustment handle for easy hand holding.

[0007] Preferably, the system also includes anchor rings, which are pre-embedded in the precast columns and concrete beams. The inclined support rods are inclinedly arranged between the precast columns and concrete beams and are respectively hooked to the anchor rings of the precast columns and concrete beams via hooks.

[0008] Preferably, the device also includes a locking buckle, which has an internal thread that matches the lead screw. The locking buckle is rotatably connected to the lead screw, and the anchor ring is confined within the hook by the locking buckle.

[0009] Preferably, the latch is a double-nut self-locking latch.

[0010] Preferably, the lead screw sleeve has a threaded opening that matches the lead screw and is welded and fixed to both ends of the slide rod.

[0011] Preferably, the end of the lead screw away from the hook is provided with an anti-disengagement limiting plate to prevent the lead screw from getting stuck in the lead screw hole. The anti-disengagement limiting plate is located inside the slide rod and is welded to the lead screw.

[0012] Compared with existing technologies, the advantages of this invention are as follows: The inclined support rod of this invention greatly simplifies the construction difficulty of temporary fixing devices for ultra-high precast columns and improves work efficiency. The length of the inclined support rod is flexibly adjustable, which not only has good coordination deformation ability, but also can be used for temporary fixing of precast columns of different heights, thus having good applicability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly of this utility model on a precast column;

[0014] Figure 2 This is a schematic diagram of the structure of the inclined support rod of this utility model.

[0015] In the diagram: 1. Precast column; 2. Sliding rod; 3. Screw sleeve; 4. Screw; 5. Lock; 6. Hook; 7. Anchor ring; 8. Adjusting handle; 9. Anti-detachment limiting plate; 10. Concrete beam. Detailed Implementation

[0016] Example: The present invention will be further described below.

[0017] According to existing regulations on temporary fixing measures for precast columns: 1. When the diagonal support rod is designed as a compression rod, it should be installed on at least two mutually perpendicular non-free surfaces. When the diagonal support rod is designed as a tension rod, it should be installed on all four column surfaces. 2. The height of the upper support point of the diagonal support rod should be above the center of gravity of the precast column and below two-thirds of the precast column height. The horizontal angle between the diagonal support rod and the finished surface of the structure should be between 45° and 60°. However, some factory buildings have high floor heights, and the height of the precast columns exceeds the conventional precast column height. This makes it difficult to meet the above specifications for temporary fixing measures of ultra-high precast columns during actual construction.

[0018] Therefore, a temporary fixing tie rod device for the installation of such ultra-high precast columns was designed, see [link to design]. Figure 1 and Figure 2The invention includes a diagonal support rod, which is mainly composed of a slide rod 2. Both ends of the slide rod 2 are equipped with hooks 6, lead screws 4, and lead screw sleeves 3. The hooks 6 and lead screws 4 have a diameter of 24 mm, the slide rod 2 has a diameter of 48 mm, and a length of 3.5 meters. The lead screw sleeves 3 are fixed to both ends of the slide rod 2. One end of the lead screw 4 is fixedly connected to the hook 6, and the other end is rotatably connected to the slide rod 2 through the lead screw sleeve 3. The threads of the lead screws 4 at the upper and lower ends of the slide rod 2 are in opposite directions. The slide rod 2 is equipped with an adjustable handle 8 for easy hand gripping. By simply grasping the adjusting handle 8 and rotating the slide rod 2, the length of the diagonal support rod can be adjusted. This invention greatly simplifies the construction difficulty of installing temporary fixing devices for ultra-high precast columns 1 and improves work efficiency. The adjustable length of the diagonal support rod not only has good coordination deformation ability but is also suitable for temporary fixing of precast columns 1 of different heights, exhibiting good applicability.

[0019] It also includes anchor rings 7, which are pre-embedded in the precast column 1 and the concrete beam 10. The inclined support rod is inclinedly set between the precast column 1 and the concrete beam 10, and is respectively hooked to the anchor rings 7 of the precast column 1 and the concrete beam 10 by hooks 6. The inclined support rod can be installed and positioned on the precast column 1 and the concrete beam 10 by the pre-embedded anchor rings 7 and hooks 6.

[0020] It also includes a locking buckle 5, which has an internal thread that matches the lead screw 4. The locking buckle 5 is rotatably connected to the lead screw 4. Rotating the locking buckle 5 can confine the anchor ring 7 within the hook 6, effectively fixing the inclined support rod and preventing the hook 6 from disengaging from the anchor ring 7. The locking buckle 5 is a double-nut self-locking locking buckle 5, which can effectively prevent the locking buckle 5 from loosening.

[0021] The lead screw sleeve 3 has a threaded opening that matches the lead screw 4, enabling the lead screw 4 and the slide bar 2 to rotate. The lead screw sleeve 3 is welded to both ends of the slide bar 2 to achieve fixed installation of the lead screw sleeve 3.

[0022] The lead screw 4 is provided with an anti-detachment limiting plate 9 at the end away from the hook 6 to prevent the lead screw 4 from getting stuck from the thread. The anti-detachment limiting plate 9 is located inside the slide rod 2 and is welded to the lead screw 4. The anti-detachment plate effectively prevents the risk of the lead screw 4 slipping.

[0023] The construction and usage process is as follows:

[0024] 1. Determine the reserved positioning reinforcement bars for the cast-in-place layer according to the construction drawings, and use reinforcement positioning sleeves to check and fix the reserved positioning reinforcement bars.

[0025] 2. The surveyor lays out the measurement and positioning control axis, the positioning axis of precast column 1, and the 200mm control line; shims of the corresponding height are placed at the four corners of the lower part of each precast column 1 according to the actual measured values ​​and leveled.

[0026] 3. When the precast column 1 is lifted and installed, pause briefly when it is 200mm away from the floor surface to allow the installation workers to check the positioning line on the floor and align it firmly to ensure that the installation position is accurate.

[0027] 4. After the precast column 1 is in place, four diagonal support rods are used to temporarily fix the precast column 1. According to the length of the precast column 1 and the position of the pre-embedded anchor ring 7, the length of the diagonal support rods is first adjusted to a suitable length. The upper and lower hooks 6 and the anchor ring 7 are connected respectively. The upper lock 5 is locked to prevent disengagement. The length of the diagonal support rods is adjusted by adjusting the handrail to make a fine adjustment to the position of the precast column 1. After the diagonal support rods of the precast column 1 are installed, the lower lock 5 is locked to complete the fixed installation of the ultra-high precast column 1.

[0028] The above provides a detailed description of a temporary fixing tie rod device for the installation of ultra-high precast columns provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, based on the idea of ​​this utility model, there will be changes in the specific implementation and application scope. Changes and improvements to this utility model are possible without exceeding the concept and scope specified in the appended claims. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A temporary fixing tie rod device for the installation of ultra-high precast columns, comprising diagonal support rods, characterized in that: The inclined support rod is mainly composed of a slide rod. Both the upper and lower ends of the slide rod are provided with hooks, lead screws and lead screw sleeves. The lead screw sleeves are fixed to both ends of the slide rod. One end of the lead screw is fixedly connected to the hook, and the other end is rotatably connected to the slide rod through the lead screw sleeve. The lead screw threads at the upper and lower ends of the slide rod are in opposite directions. The slide rod is provided with an adjustment handle for easy hand holding.

2. The temporary fixing tie rod device for installing ultra-high precast columns according to claim 1, characterized in that: It also includes anchor rings, which are pre-embedded in the precast columns and concrete beams. The inclined support rods are inclinedly set between the precast columns and concrete beams and are respectively hooked to the anchor rings of the precast columns and concrete beams by hooks.

3. A temporary fixing tie rod device for installing ultra-high precast columns according to claim 2, characterized in that: It also includes a locking buckle, which has an internal thread that matches the lead screw. The locking buckle is rotatably connected to the lead screw, and the anchor ring is limited to the hook by the locking buckle.

4. A temporary fixing tie rod device for installing ultra-high precast columns according to claim 3, characterized in that: The latch is a double-nut self-locking latch.

5. A temporary fixing tie rod device for installing ultra-high precast columns according to claim 1, characterized in that: The lead screw sleeve has a threaded opening that matches the lead screw and is welded and fixed to both ends of the slide rod.

6. A temporary fixing tie rod device for installing ultra-high precast columns according to claim 5, characterized in that: The lead screw is provided with an anti-disengagement limiting plate at the end away from the hook to prevent the lead screw from getting stuck from the screw thread. The anti-disengagement limiting plate is located inside the slide rod and is welded to the lead screw.

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