Back-jacking pre-embedded-bolt-free overhanging type outer frame fixing device

Abstract

The utility model relates to the technical field of building construction, in particular to a back-jacking embedded-bolt-free overhanging type outer frame fixing device which is characterized in that a limiting threaded rod is arranged on the lower surface of a bottom plate, a rotating seat is arranged on the side face of the upper end of a lifting seat, and a lifting threaded rod is arranged in a rotating shaft; the fixing device has the beneficial effects that when the fixing device needs to be erected between an upper floor and a lower floor, a limiting threaded rod is placed at a designated position firstly, then a driving disc is rotated to enable a worm to drive a rotating shaft to rotate through meshing transmission with a driven gear, and a threaded groove drives a top plate to move upwards through spiral transmission with a lifting threaded rod till the top plate is tightly attached to the upper floor; then the outer frame I-shaped steel is placed between the limiting threaded rods, the outer frame I-shaped steel is pressed and fixed through the fixing plates by tightening the nuts, and therefore the outer frame I-shaped steel is fixed to the designated position between the limiting threaded rods, the fixing mode is easy to operate, convenient and rapid, the outer frame I-shaped steel does not need to be fixed through embedded bolts, and the fixing efficiency is improved. And the integrity of the building structure is ensured.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a cantilevered external frame fixing device without pre-embedded bolts. Background Art

[0002] Use steel pipes or bowl-shaped frames to add support within the corresponding force range so that the force can be transmitted layer by layer to be weakened or directly transmitted to the bottom plate. The support process is called returning to the top.

[0003] In the prior art, the construction method currently used is to fix the I-beam by pre-embedded bolts, insert wooden wedges at the intersection of the bolts and the I-beam, and then erect an external frame at the overhanging position of the I-beam.

[0004] However, the traditional construction method will damage the integrity of the building structure and there is a risk of leakage. At the same time, bolts may be missed or buried off-center. Therefore, the utility model proposes a cantilevered external frame fixing device with a return top and no embedded bolts to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a cantilever external frame fixing device without pre-embedded bolts to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cantilever external frame fixing device without pre-embedded bolts, the cantilever external frame fixing device without pre-embedded bolts comprises: a bottom plate, a limit threaded rod is arranged on the lower surface of the bottom plate, four corners of the fixing plate are sleeved on the surface of the limit threaded rod, a nut is sleeved on the surface of the limit threaded rod, an external frame I-beam is arranged between the limit threaded rods, the external frame I-beam is arranged on the upper surface of the lower floor plate, and a lifting seat is arranged on the upper surface of the bottom plate;

[0007] A lifting seat, a rotating seat is arranged on the side of the upper end of the lifting seat, a worm is arranged in the rotating seat, a driving plate is arranged on one end face of the worm, a rotating shaft is arranged in the upper end of the lifting seat, a driven gear is arranged on the upper end face of the rotating shaft, a threaded groove is opened in the rotating shaft, a lifting threaded rod is arranged in the threaded groove, a top plate is arranged on the upper end face of the lifting threaded rod, stabilizing rods are arranged at the four corners of the lower surface of the top plate, and an upper floor plate is arranged on the upper surface of the top plate.

[0008] Preferably, the bottom plate is a plate-like structure, and the limiting threaded rods are fixedly connected to the four corners of the lower surface of the bottom plate.

[0009] Preferably, the fixing plate is in a plate-like structure, the fixing plate is slidably connected to the limiting threaded rod, the nut is threadedly connected to the limiting threaded rod, and the nut is arranged on the upper side of the fixing plate.

[0010] Preferably, the lifting seat is fixedly connected to the upper surface of the base plate, the rotating seat is fixedly connected to the side surface of the upper end of the lifting seat, the worm is rotatably connected to the rotating seat, and the driving disk is fixedly connected to one end surface of the worm.

[0011] Preferably, the rotating shaft is rotatably connected to the upper end of the lifting seat, the driven gear is fixedly connected to the upper end surface of the rotating shaft, the driven gear is meshingly connected to the worm, and the thread groove opened in the rotating shaft is a columnar structure.

[0012] Preferably, the lifting threaded rod is threadedly connected to the thread groove, the top plate is fixedly connected to the upper end surface of the lifting threaded rod, the stabilizing rod is fixedly connected to the four corners of the lower surface of the top plate, and the stabilizing rod is slidably connected to the bottom plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a cantilever external frame fixing device which does not require embedded bolts. When the fixing device is to be installed between the upper floor slab and the lower floor slab, the limiting threaded rod is first placed in the specified position, and then the driving plate is rotated to make the worm drive the rotating shaft to rotate by meshing with the driven gear, and the thread groove drives the top plate to move upward by spiral transmission with the lifting threaded rod until the top plate is close to the upper floor slab, and then the external frame I-beam is placed between the limiting threaded rods and the fixing plate presses and fixes the external frame I-beam by tightening the nut, so that the external frame I-beam is fixed in the specified position between the limiting threaded rods. This fixing method is simple to operate, convenient and quick, does not need to fix the external frame I-beam by embedded bolts, ensures the integrity of the building structure, avoids the risk of leakage, and at the same time avoids the situation that the bolts are not buried or buried unevenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model viewed from above;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from below;

[0017] Figure 3 This is a schematic diagram of the external frame I-beam fixing structure;

[0018] Figure 4 It is a partial schematic diagram of the fixing device;

[0019] Figure 5 is a schematic side cross-sectional view of the fixing device;

[0020] Figure 6 for Figure 5 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. bottom plate; 2. limit threaded rod; 3. fixing plate; 4. nut; 5. external frame I-beam; 6. lower floor; 7. lifting seat; 8. swivel seat; 9. worm; 10. driving plate; 11. rotating shaft; 12. driven gear; 13. threaded groove; 14. lifting threaded rod; 15. top plate; 16. stabilizing rod; 17. upper floor. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0026] Embodiment 1

[0027] See also Figures 1 to 6 The utility model provides a technical solution: a cantilever external frame fixing device without embedded bolts, the cantilever external frame fixing device without embedded bolts comprises: a bottom plate 1, a limited threaded rod 2 is arranged on the lower surface of the bottom plate 1, four corners of a fixing plate 3 are sleeved on the surface of the limited threaded rod 2, a nut 4 is sleeved on the surface of the limited threaded rod 2, an external frame I-beam 5 is arranged between the limited threaded rods 2, the external frame I-beam 5 is arranged on the upper surface of the lower floor slab 6, and a lifting seat 7 is arranged on the upper surface of the bottom plate 1; the lifting seat 7, a rotating seat 8 is arranged on the side of the upper end of the lifting seat 7, a worm 9 is arranged in the rotating seat 8, a driving plate 10 is arranged on one end face of the worm 9, a rotating shaft 11 is arranged in the upper end of the lifting seat 7, a driven gear 12 is arranged on the upper end face of the rotating shaft 11, a thread groove 13 is opened in the rotating shaft 11, a lifting thread rod 14 is arranged in the thread groove 13, a top plate 15 is arranged on the upper end face of the lifting thread rod 14, stabilizing rods 16 are arranged at the four corners of the lower surface of the top plate 15, and an upper floor plate 17 is arranged on the upper surface of the top plate 15;

[0028] When the fixing device is to be installed between the upper floor 6 and the lower floor 17, the limiting threaded rod 2 is first placed to the specified position, and then the driving disk 10 is rotated to make the worm 9 drive the rotating shaft 11 to rotate by meshing with the driven gear 12, and the thread groove 13 drives the top plate 15 to move upward by spiral transmission with the lifting threaded rod 14 until the top plate 15 is close to the upper floor 17, and then the external frame I-beam 5 is placed between the limiting threaded rods 2 and the fixing plate 3 is tightened and fixed by tightening the nut 4, so that the external frame I-beam 5 is fixed in the specified position between the limiting threaded rods 2. This fixing method is simple to operate, convenient and fast, and does not require embedded bolts to fix the external frame I-beam 5, thereby ensuring the integrity of the building structure, avoiding risks such as leakage, and at the same time avoiding the situation where the bolts are missing or buried unevenly.

[0029] Embodiment 2

[0030] On the basis of the first embodiment, in order to facilitate the installation of the fixing device between the upper floor 17 and the lower floor 6, a lifting seat 7 is provided which is fixedly connected to the upper surface of the bottom plate 1, a rotating seat 8 is fixedly connected to the side surface of the upper end of the lifting seat 7, a worm 9 is rotatably connected to the rotating seat 8, a driving disc 10 is fixedly connected to one end surface of the worm 9, a rotating shaft 11 is rotatably connected to the upper end of the lifting seat 7, a driven gear 12 is fixedly connected to the upper end surface of the rotating shaft 11, and the driven gear 12 is meshedly connected to the worm 9. A threaded groove 13 provided in the rotating shaft 11 is a columnar structure, a lifting threaded rod 14 is threadedly connected to the threaded groove 13, a top plate 15 is fixedly connected to the upper end surface of the lifting threaded rod 14, a stabilizing rod 16 is fixedly connected to the four corners of the lower surface of the top plate 15, and the stabilizing rod 16 is slidably connected to the bottom plate 1;

[0031] When the fixing device is to be erected between the upper floor 6 and the lower floor 17, the limiting threaded rod 2 is first placed at the specified position, and then the driving disk 10 is rotated to rotate the worm 9 in the rotating seat 8. The worm 9 drives the driven gear 12 and the rotating shaft 11 to rotate by meshing with the driven gear 12 at the upper end of the lifting seat 7. The thread groove 13 in the rotating shaft 11 drives the top plate 15 to move upward through the spiral transmission with the lifting threaded rod 14 until the top plate 15 is close to the upper floor 17, thereby erecting the fixing device between the upper floor 6 and the lower floor 17, wherein the stabilizing rod 16 can ensure that the top plate 15 is more stable when moving.

[0032] Embodiment 3

[0033] On the basis of the second embodiment, in order to facilitate fixing the external frame I-beam 5 at a specified position, a bottom plate 1 is provided with a plate-like structure, a limiting threaded rod 2 is fixedly connected to the four corners of the lower surface of the bottom plate 1, a fixing plate 3 is a plate-like structure, the fixing plate 3 is slidably connected to the limiting threaded rod 2, a nut 4 is threadedly connected to the limiting threaded rod 2, and the nut 4 is arranged on the upper side of the fixing plate 3;

[0034] When the external frame I-beam 5 is to be fixed at a specified position, the fixing device is first set up between the upper floor 6 and the lower floor 17, and then the external frame I-beam 5 is placed between the limiting threaded rods 2 on the lower surface of the base plate 1, and then the nut 4 is tightened to make the fixing plate 3 press and fix the external frame I-beam 5, thereby fixing the external frame I-beam 5 at the specified position between the limiting threaded rods 2. This fixing method is simple to operate, convenient and fast.

[0035] Working principle: In actual use, when the fixing device is to be erected between the upper floor 6 and the lower floor 17, the limiting threaded rod 2 is first placed in the specified position, and then the driving disk 10 is rotated to make the worm 9 drive the rotating shaft 11 to rotate by meshing with the driven gear 12, and the thread groove 13 drives the top plate 15 to move upward by spiral transmission with the lifting threaded rod 14 until the top plate 15 is close to the upper floor 17, and then the external frame I-beam 5 is placed between the limiting threaded rods 2 and the fixing plate 3 presses and fixes the external frame I-beam 5 by tightening the nut 4, so that the external frame I-beam 5 is fixed in the specified position between the limiting threaded rods 2. This fixing method is simple to operate, convenient and fast, and does not require embedded bolts to fix the external frame I-beam 5, which ensures the integrity of the building structure and avoids risks such as leakage. At the same time, it avoids the situation that the bolts are not buried or buried unevenly. This avoids the traditional construction method that will damage the integrity of the building structure and there is a risk of leakage. At the same time, there may be problems such as bolts being not buried or buried unevenly.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cantilever external frame fixing device without embedded bolts, characterized in that: The back-to-top pre-embedded bolt-free cantilevered external frame fixing device comprises: a base plate (1), a limiting threaded rod (2) is arranged on the lower surface of the base plate (1), four corners of a fixing plate (3) are sleeved on the surface of the limiting threaded rod (2), a nut (4) is sleeved on the surface of the limiting threaded rod (2), an external frame I-beam (5) is arranged between the limiting threaded rods (2), the external frame I-beam (5) is arranged on the upper surface of the lower floor plate (6), and a lifting seat (7) is arranged on the upper surface of the base plate (1); A lifting seat (7) is provided with a rotating seat (8) on the side of the upper end of the lifting seat (7), a worm (9) is provided in the rotating seat (8), a driving disc (10) is provided on one end surface of the worm (9), a rotating shaft (11) is provided in the upper end of the lifting seat (7), a driven gear (12) is provided on the upper end surface of the rotating shaft (11), a thread groove (13) is provided in the rotating shaft (11), a lifting threaded rod (14) is provided in the thread groove (13), a top plate (15) is provided on the upper end surface of the lifting threaded rod (14), stabilizing rods (16) are provided at the four corners of the lower surface of the top plate (15), and an upper floor plate (17) is provided on the upper surface of the top plate (15).

2. According to claim 1, a cantilevered external frame fixing device without embedded bolts is characterized in that: The bottom plate (1) is a plate-shaped structure, and the limiting threaded rods (2) are fixedly connected to the four corners of the lower surface of the bottom plate (1).

3. According to claim 1, a cantilevered external frame fixing device without embedded bolts is characterized in that: The fixing plate (3) is a plate-shaped structure. The fixing plate (3) is slidably connected to the limiting threaded rod (2). The nut (4) is threadedly connected to the limiting threaded rod (2). The nut (4) is arranged on the upper side of the fixing plate (3).

4. According to claim 1, a cantilevered external frame fixing device without embedded bolts is characterized in that: The lifting seat (7) is fixedly connected to the upper surface of the base plate (1), the rotating seat (8) is fixedly connected to the side surface of the upper end of the lifting seat (7), the worm (9) is rotatably connected to the rotating seat (8), and the driving disc (10) is fixedly connected to one end surface of the worm (9).

5. According to claim 1, a cantilevered external frame fixing device without embedded bolts is characterized in that: The rotating shaft (11) is rotatably connected to the upper end of the lifting seat (7), the driven gear (12) is fixedly connected to the upper end surface of the rotating shaft (11), the driven gear (12) is meshedly connected to the worm (9), and the thread groove (13) provided in the rotating shaft (11) is a columnar structure.

6. The cantilever external frame fixing device without embedded bolts according to claim 1 is characterized in that: The lifting threaded rod (14) is threadedly connected to the threaded groove (13); the top plate (15) is fixedly connected to the upper end surface of the lifting threaded rod (14); the stabilizing rod (16) is fixedly connected to the four corners of the lower surface of the top plate (15); and the stabilizing rod (16) is slidably connected to the bottom plate (1).

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