Beam inner sleeve pre-buried fixing device

Abstract

The application relates to the technical field of building construction, in particular to a beam inner sleeve pipe pre-burying fixing device, which comprises a bottom plate provided with installation rollers, a drilling machine is arranged at the top of the bottom plate, a calibration assembly is arranged on the bottom plate, a leveling assembly is arranged at the center of the bottom plate, a pre-burying sleeve pipe is arranged above the leveling assembly and penetrates through the leveling assembly and the bottom plate; the calibration assembly comprises a sliding frame, a sliding block, a lifting rod, a multi-shaft moving assembly, a driving assembly and a point position finding assembly, the sliding frame is fixedly connected with the top of the bottom plate, the sliding block slides in the sliding frame along the length direction of the sliding frame, the lifting rod movably penetrates through the sliding block, and the multi-shaft moving assembly is arranged at the bottom of the lifting rod. The beam inner sleeve pipe pre-burying fixing device solves the technical problem that the existing pre-burying sleeve pipe installation needs to be drilled and calibrated from the upper floor and the lower floor successively, which not only causes more time consumption of workers and tools in the transfer between the floors, but also causes the technical problem that the drilling process from the lower floor to the upper floor is difficult.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a pre-embedded fixing device for inner sleeves in beams. Background Technology

[0002] Wherever pipes pass through walls, floors, beams, or reinforced concrete walls, pre-embedded sleeves must be installed. A search revealed that patent application number CN202211265194.9 discloses an installation device and method for pre-embedded sleeves in floors, which solves the problems of time-consuming, labor-intensive, and material-intensive installation methods for pre-embedded sleeves in floors.

[0003] When aligning the pre-embedded sleeves of the upper and lower floors with the above-mentioned device, it is necessary to first drill a hole from the laser light irradiation position below the floor slab bottom formwork, and then use tools from above the floor slab bottom formwork to align the pre-embedded sleeve with the laser light passing through the drill hole. This not only requires construction to be carried out from the upper and lower floors one after another, but also consumes a lot of time for workers and tools to be transferred between floors. Moreover, the drilling process is carried out by workers operating at an upward angle on the ladder, which makes it difficult to hold the drill bit to apply force, the tilt direction is easy to make the hole position crooked, and the drilling debris is easy to enter the workers' eyes, which are all problems that make construction difficult. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a pre-embedded fixing device for beam sleeves, which solves the problem that existing pre-embedded sleeve installation requires drilling and calibration from the upper and lower floors sequentially. This not only results in a significant time wasted transferring workers and tools between floors, but also presents technical challenges in drilling from the bottom up to the upper floor slab.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] The beam inner sleeve pre-embedded fixing device includes a base plate for mounting rollers, a drilling machine is installed on the top of the base plate, a calibration component is installed on the base plate, a leveling component is installed at the center of the base plate, and a pre-embedded sleeve penetrating the leveling component and the base plate is provided above the leveling component.

[0007] The calibration assembly includes a sliding frame, a slider, a lifting rod, a multi-axis moving assembly, a drive assembly, and a point-finding assembly. The sliding frame is fixedly connected to the top of the base plate. The slider slides inside the sliding frame along its length. The lifting rod moves through the slider. The multi-axis moving assembly is installed at the bottom of the lifting rod. The drive assembly is installed on the slider and drives the multi-axis moving assembly to translate and rotate. The point-finding assembly is connected to the slider.

[0008] Furthermore, the lifting rod has external threads on its outer side, and a nut is installed on the top of the lifting rod.

[0009] Furthermore, the multi-axis moving assembly includes an outer frame rotatably connected to the lifting rod, and a sliding plate for observing the outer frame is provided inside the outer frame. A metal ring is fixedly connected to one end of the sliding plate, and a rubber arc plate is fixedly connected to the end of the sliding plate away from the metal ring. A gear groove is provided on one side of the sliding plate, and a miniature camera is embedded on the side of the metal ring away from the sliding plate.

[0010] Furthermore, the driving assembly includes a lifting frame that is slidably connected to the inner wall of the sliding frame, a horizontal driving assembly is installed inside the lifting frame, and a vertical driving assembly that drives the lifting frame to move longitudinally is installed on one side of the slider.

[0011] Furthermore, the lateral drive assembly includes a motor installed inside the lifting frame, and the output end of the motor is fixedly connected to a gear that matches the gear slot on one side of the slide plate.

[0012] Furthermore, the longitudinal drive assembly includes a second motor fixedly connected to the slider, and the output end of the second motor is provided with a threaded rod that movably passes through the lifting frame.

[0013] Furthermore, the positioning component includes a winding frame installed on one side of the slider, a traction rope wound around the outside of the winding frame, a magnet block fixedly connected to the end of the traction rope away from the winding frame, and a pressure sensor fixedly connected to the bottom of the magnet block.

[0014] Furthermore, the leveling assembly includes an annular plate mounted on top of the base plate, an indicator, and a leveling screw.

[0015] Furthermore, a bending frame is fixedly connected to the top of the annular plate, and a bolt with one end movable through the bending frame is provided on one side of the bending frame.

[0016] By employing the above technical solution, the present invention provides a pre-embedded fixing device for beam sleeves, which has at least the following beneficial effects:

[0017] 1. The present invention, through the calibration component, can complete the positioning and installation of the pre-embedded sleeve on one floor. It eliminates the need to locate and drill holes in the roof from the ground floor and then move to the upper floor to install the pre-embedded sleeve. On the one hand, it reduces the time spent by people and tools moving between floors when installing the pre-embedded sleeve, and on the other hand, it reduces the construction difficulty compared to drilling holes from the bottom to the upper floor slab.

[0018] 2. The present invention, through the setting of a multi-axis moving component, can flexibly adjust the metal ring to rotate in the longitudinal plane and move in the transverse plane, which meets the requirements of the multi-axis moving component to pass through the hole and move a long distance to approach the laser, and finally locate the laser position. Only one more hole needs to be pre-drilled to complete the drilling and adjustment of the pre-embedded sleeve position in one layer, which reduces the difficulty of calibrating the pre-embedded sleeve position.

[0019] 3. The present invention uses a positioning component to determine the laser position of the metal ring below the floor slab bottom mold by utilizing the change in the attraction force when the magnetic block above the floor slab bottom mold approaches the metal ring below the floor slab bottom mold. This allows for positioning of the laser position above the floor slab bottom mold, facilitating drilling at the laser position. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention without the leveling components and pre-embedded sleeves installed;

[0023] Figure 3 This is a schematic diagram of the calibration component of the present invention;

[0024] Figure 4 This is a schematic diagram of the calibration component of the present invention without the sliding frame;

[0025] Figure 5 This is a dynamic diagram of the calibration component of the present invention;

[0026] Figure 6 This is a schematic diagram of the leveling component of the present invention.

[0027] In the diagram: 1. Base plate; 2. Drilling machine; 3. Calibration assembly; 31. Sliding frame; 32. Slider; 33. Lifting rod; 34. Multi-axis moving assembly; 341. Outer frame; 342. Slide plate; 343. Metal ring; 344. Rubber arc plate; 35. Drive assembly; 351. Lifting frame; 352. Lateral drive assembly; 3521. Motor 1; 3522. Gear; 353. Longitudinal drive assembly; 3531. Motor 2; 3532. Threaded rod; 36. Point positioning assembly; 361. Winding frame; 362. Traction rope; 363. Magnet block; 364. Pressure sensor; 4. Leveling assembly; 41. Ring plate; 42. Indicator; 43. Leveling screw; 5. Embedded sleeve; 6. Nut; 7. Bending frame; 8. Bolt. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] To reduce the time spent moving workers and tools due to drilling and positioning from upper and lower floors during the installation of pre-embedded sleeves, please refer to... Figures 1-5 This embodiment proposes a pre-embedded fixing device for the inner sleeve of a beam, including a base plate 1 for mounting rollers, a drilling machine 2 mounted on the top of the base plate 1, a calibration component 3 mounted on the base plate 1, a leveling component 4 mounted at the center of the base plate 1, and a pre-embedded sleeve 5 that penetrates the leveling component 4 and the base plate 1 above the leveling component 4. The calibration component 3 includes a sliding frame 31, a slider 32, a lifting rod 33, a multi-axis moving component 34, a driving component 35, and a point-finding component 36. The sliding frame 31 is fixedly connected to the top of the base plate 1, the slider 32 slides along its length inside the sliding frame 31, the lifting rod 33 moves through the slider 32, the multi-axis moving component 34 is mounted at the bottom of the lifting rod 33, the driving component 35 is mounted on the slider 32 and drives the multi-axis moving component 34 to translate and rotate, and the point-finding component 36 is connected to the slider 32.

[0031] In use, workers vertically install laser lights on the ground floor of the building. The floor where the bottom formwork of the roof slab is located is designated as the lower floor, and the floor above the bottom formwork of the roof slab is designated as the upper floor. The steps of workers pushing the base plate 1 to the upper floor and aligning the pre-embedded sleeve with the laser light include:

[0032] S1, the staff estimates the laser beam position on the upper level, and then pushes the base plate 1 to move until the drill bit of the drilling machine 2 moves to the estimated position. At this time, the base plate 1 and the drilling machine 2 are in the position of work station one.

[0033] S2, start drilling machine 2 to drill a hole in the upper floor at a work station to obtain hole position one, then observe the laser irradiation position of the lower floor from the drilling point, move the multi-axis moving component 34 longitudinally through hole position one, and then move the multi-axis moving component 34 laterally until the end of the multi-axis moving component 34 moves to the laser irradiation point of the lower roof, and clamp and fix the multi-axis moving component 34 with the bottom formwork of the floor slab.

[0034] S3, move the positioning point 36 along the upper ground until the end of the positioning point 36 is aligned with the end of the multi-axis moving component 34 in the lower layer. At this time, the position of the end of the positioning point 36 is station two.

[0035] S4, the base plate 1 moves the drilling machine 2 until the drill bit of the drilling machine 2 moves directly above the second work station. The point positioning component 36 is removed. Since the multi-axis moving component 34 is fixed to the floor slab bottom membrane, when the base plate 1 moves the sliding frame 31, the multi-axis moving component 34 slides along the sliding frame 31. Then the drilling machine 2 is started to drill the second work station to obtain the second hole. The laser passes through the end of the multi-axis moving component 34 and the second hole and enters the upper layer.

[0036] S5, adjust the leveling component 4 until the laser coincides with the axis of the upper plane of the leveling component 4, and then fix the pre-embedded sleeve 5 on the leveling component 4 to complete the fixing process of the pre-embedded sleeve 5 of the first layer.

[0037] S6, fix the pre-embedded sleeve 5 on the bottom formwork of the floor slab, then remove the multi-axis moving component 34 from the bottom formwork of the floor slab, move the bottom plate 1 to the ground of the next higher floor, and repeat the above process to drill holes and install and fix the pre-embedded sleeves on the bottom formwork of the floor slab of different floors from low to high.

[0038] Using the above equipment and the installation method of the pre-embedded sleeve 5, the positioning and installation of the pre-embedded sleeve can be completed on one floor. It is not necessary to position and drill the roof from the ground floor and then move to the upper floor to install the pre-embedded sleeve 5. On the one hand, it reduces the time spent by people and tools moving between floors when installing the pre-embedded sleeve, and on the other hand, it also reduces the construction difficulty compared to drilling from the bottom to the upper floor slab.

[0039] To facilitate the lifting and lowering of the multi-axis moving component 34, refer to... Figure 4 The lifting rod 33 has an external thread on its outer side, and a nut 6 is installed on the top of the lifting rod 33. When in use, the drive assembly 35 descends, pushing the multi-axis moving assembly 34 to rotate clockwise, so that the multi-axis moving assembly 34 rotates to the horizontal direction. At this time, the multi-axis moving assembly 34 will not obstruct the movement of the base plate 1 on the ground. When it is necessary to use the multi-axis moving assembly 34 to pass through the hole on the bottom formwork of the floor slab, the drive assembly 35 rises to the highest position, and then pulls the multi-axis moving assembly 34 to the highest position, so that when the multi-axis moving assembly 34 hangs down naturally, it is above the hole. Then the lifting rod 33 is moved down, driving the multi-axis moving assembly 34 below the lifting rod 33 to descend, until the multi-axis moving assembly 34 has completely passed through the hole and moved to the bottom formwork of the floor slab.

[0040] Then, the drive assembly 35 is activated and descends through the hole until it contacts the multi-axis moving assembly 34 again, pushing the multi-axis moving assembly 34 to rotate horizontally. It continues to move the multi-axis moving assembly 34 horizontally until the operator observes from the hole that the end of the multi-axis moving assembly 34 has moved to the laser. The operator then pulls the lifting rod 33 upwards, controlling the drive assembly 35 to rise synchronously, causing the multi-axis moving assembly 34 to rise until it presses against the bottom formwork of the floor slab from below, thus fixing the multi-axis moving assembly 34 to the bottom formwork. Next, the nut 6 is rotated along the lifting rod 33 until it descends and presses against the slider 32. The nut 6 limits the movement of the lifting rod 33 and the multi-axis moving assembly 34, preventing them from descending. This completes the goal of aligning the end of the multi-axis moving assembly 34 with the laser after passing through the hole.

[0041] To facilitate accurate laser positioning and meet the requirement of being able to both vertically pass through the hole and laterally move closer to the laser position during movement, refer to... Figure 4 The multi-axis moving assembly 34 includes an outer frame 341 rotatably connected to the lifting rod 33. Inside the outer frame 341 is a sliding plate 342 for observing the outer frame 341. A metal ring 343 is fixedly connected to one end of the sliding plate 342. A rubber arc plate 344 is fixedly connected to the end of the sliding plate 342 away from the metal ring 343. A gear groove is provided on one side of the sliding plate 342. A miniature camera is embedded on the side of the metal ring 343 away from the sliding plate 342.

[0042] In use, to better move the metal ring 343 to the laser, a miniature camera can be installed on one side of the metal ring 343. As the metal ring 343 moves, the miniature camera observes its angle and distance from the laser, thus allowing for better positioning. The process of moving the metal ring 343 is as follows:

[0043] First, keep the slide plate 342 in a vertical position, then pull the lifting rod 33 upward to move the slide plate 342 to the highest position, so that the metal ring 343 is above the hole on the bottom formwork of the floor slab. Then move the lifting rod 33 downward to move the metal ring 343 and the slide plate 342 through the hole until the multi-axis moving assembly 34 has completely passed through the hole.

[0044] Then, control the drive assembly 35 to move longitudinally, so that the drive assembly 35 also passes through the hole. The drive assembly 35 presses the rubber arc plate 344 downward, pushing the rubber arc plate 344 and the slide plate 342 to rotate clockwise until the slide plate 342 rotates to the horizontal direction.

[0045] Next, the drive assembly 35 is controlled to rotate, causing the rubber arc plate 344 and the slide plate 342 to pass through the outer frame 341 and move horizontally, causing the metal ring 343 to move towards the laser. During this process, the slide plate 342 and the metal ring 343 can be rotated on the plane by rotating the lifting rod 33, and the forward angle of the metal ring 343 can be adjusted to face the laser.

[0046] Finally, after the metal ring 343 moves to the laser, the drive assembly 35 stops working, maintaining the laser passing through the bottom of the metal ring 343. Then, the lifting rod 33 and the drive assembly 35 are raised synchronously until the metal ring 343 abuts against the bottom mold of the floor slab, thus clamping and fixing the metal ring 343 to the bottom mold of the floor slab. The nut 6 is rotated along the lifting rod 33 until the nut 6 abuts against the slider 32, preventing the lifting rod 33 from descending.

[0047] Through the above steps, the metal ring 343 can be flexibly adjusted to rotate in the longitudinal plane and move in the transverse plane, which meets the requirements of the multi-axis moving component 34 passing through the hole and moving a long distance to approach the laser, and finally positioning the laser position. Only one more hole needs to be pre-drilled to complete the drilling and adjustment of the pre-embedded sleeve 5 position in one layer, reducing the difficulty of calibrating the position of the pre-embedded sleeve 5.

[0048] In order to locate the position of the metal ring 343 located below the floor slab bottom formwork from above, and thus determine the accurate drilling position of the drilling machine 2, refer to... Figure 4 The positioning component 36 includes a winding frame 361 installed on one side of the slider 32. A traction rope 362 is wound around the outside of the winding frame 361. A magnet block 363 is fixedly connected to one end of the traction rope 362 away from the winding frame 361. A pressure sensor 364 is fixedly connected to the bottom of the magnet block 363.

[0049] In use, the pressure sensor 364 is attached to the upper surface of the floor slab bottom mold. Then, the magnet block 363 is moved horizontally along the upper surface of the floor slab bottom mold. When the magnet block 363 approaches the metal ring 343 below the floor slab bottom mold, the magnet block 363 is attracted by the metal ring 343, increasing the downward pressure on the floor slab bottom mold. This results in an increase in the pressure on the pressure sensor 364. Moving the magnet block 363 in the direction of vertical increase in pressure on the pressure sensor 364, the position where the pressure sensor 364 detects the maximum value is the closest position to the metal ring 343, that is, directly above the metal ring 343. Draw the metal ring from the upper surface of the floor slab bottom mold. The position corresponding to 343 is the position of hole position two. Then, remove the magnet block 363, rewind the traction rope 362 onto the winding frame 361, move the base plate 1 and the drilling machine 2 until the drill bit of the drilling machine 2 moves directly above hole position two, control the drilling machine 2 to drill at hole position two, and complete the purpose of drilling at the laser. It is possible to use the change in the attraction force when the magnet block 363 above the floor slab bottom mold and the metal ring 343 below the floor slab bottom mold approach each other to determine the laser position of the metal ring 343 below the floor slab bottom mold from above the floor slab bottom mold, thereby locating the laser position above the floor slab bottom mold, which is convenient for drilling at the laser position.

[0050] Example 2

[0051] To achieve the goal of controlling the rotation and translation of the multi-axis moving component 34, so that the multi-axis moving component 34 can both pass through the hole and move a long distance to reach the laser, refer to... Figures 1-5 Based on Embodiment 1, the drive assembly 35 includes a lifting frame 351 that is slidably connected to the inner wall of the slide frame 31. A transverse drive assembly 352 is installed inside the lifting frame 351. A longitudinal drive assembly 353 that drives the lifting frame 351 to move longitudinally is installed on one side of the slider 32. The transverse drive assembly 352 includes a motor 3521 installed inside the lifting frame 351. The output end of the motor 3521 is fixedly connected to a gear 3522 that is adapted to the gear groove on one side of the slide plate 342. The longitudinal drive assembly 353 includes a motor 3531 that is fixedly connected to the slider 32. The output end of the motor 3531 is provided with a threaded rod 3532 that movably passes through the lifting frame 351.

[0052] In use, the slide plate 342 naturally hangs down to the vertical direction to facilitate passing through the hole. The longitudinal drive component 353 drives the transverse drive component 352 to descend, causing the transverse drive component 352 to push the rubber arc plate 344 downward, thereby causing the slide plate 342 to rotate clockwise until the slide plate 342 rotates to the horizontal direction. Then the transverse drive component 352 rotates, and the rotating gear 3522 pushes the rubber arc plate 344 and the slide plate 342 to move laterally, thereby causing the metal ring 343 to move laterally and approach the laser position, thus fulfilling the requirement of driving the multi-axis moving component 34 to rotate and translate.

[0053] Example 3

[0054] To adjust the angle of the embedded sleeve 5 so that its axis coincides with the laser beam, refer to... Figures 1-6 Based on Embodiment 1, the leveling assembly 4 includes an annular plate 41, an indicator 42, and a leveling screw 43 installed on the top of the base plate 1. A bending frame 7 is fixedly connected to the top of the annular plate 41, and a bolt 8 with one end movable through the bending frame 7 is provided on one side of the bending frame 7.

[0055] In use, rotate the leveling screws 43 at different positions on the bottom of the annular plate 41 to tilt the annular plate 41 to different positions until the annular plate 41 is perpendicular to the laser. Then, move the base plate 1 horizontally to move the annular plate 41 laterally until the axis of the annular plate 41 coincides with the laser. Since the annular plate 41, the indicator 42 and the leveling screws 43 are common leveling devices, they will not be described in detail. At this time, the pre-embedded sleeve 5 is placed inside the annular plate 41. Then, rotate the bolt 8 so that the bolt 8 passes through the bending frame 7 and gradually approaches the pre-embedded sleeve 5 until the pre-embedded sleeve 5 is squeezed and fixed from both sides, thus achieving the purpose of fixing the pre-embedded sleeve 5 in the designated position.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-embedded fixing device for the inner sleeve of a beam, comprising a base plate (1) for mounting rollers, characterized in that, A drilling machine (2) is installed on the top of the base plate (1), a calibration component (3) is installed on the base plate (1), a leveling component (4) is installed in the center of the base plate (1), and a pre-embedded sleeve (5) that penetrates the leveling component (4) and the base plate (1) is provided above the leveling component (4). The calibration component (3) includes a sliding frame (31), a slider (32), a lifting rod (33), a multi-axis moving component (34), a driving component (35), and a point-finding component (36). The sliding frame (31) is fixedly connected to the top of the base plate (1). The slider (32) slides inside the sliding frame (31) along its length. The lifting rod (33) moves through the slider (32). The multi-axis moving component (34) is installed at the bottom of the lifting rod (33). The driving component (35) is installed on the slider (32) and drives the multi-axis moving component (34) to translate and rotate. The point-finding component (36) is connected to the slider (32). The lifting rod (33) has an external thread on its outer side and a nut (6) is installed on the top of the lifting rod (33). The multi-axis moving assembly (34) includes an outer frame (341) that is rotatably connected to the lifting rod (33). The inner side of the outer frame (341) is provided with a sliding plate (342) for the movable observation outer frame (341). One end of the sliding plate (342) is fixedly connected to a metal ring (343). The end of the sliding plate (342) away from the metal ring (343) is fixedly connected to a rubber arc plate (344). A gear groove is provided on one side of the sliding plate (342). The drive assembly (35) includes a lifting frame (351) that is slidably connected to the inner wall of the slide frame (31), a horizontal drive assembly (352) is installed inside the lifting frame (351), and a vertical drive assembly (353) that drives the lifting frame (351) to move longitudinally is installed on one side of the slider (32).

2. The beam inner sleeve pre-embedded fixing device according to claim 1, characterized in that, The lateral drive assembly (352) includes a motor (3521) installed inside the lifting frame (351), and the output end of the motor (3521) is fixedly connected to a gear (3522) that is adapted to the gear groove on one side of the slide plate (342).

3. The beam inner sleeve pre-embedded fixing device according to claim 1, characterized in that, The longitudinal drive assembly (353) includes a second motor (3531) fixedly connected to the slider (32), and the output end of the second motor (3531) is provided with a threaded rod (3532) that moves through the lifting frame (351).

4. The beam inner sleeve pre-embedded fixing device according to claim 1, characterized in that, The positioning component (36) includes a winding frame (361) installed on one side of the slider (32), a traction rope (362) is wound around the outside of the winding frame (361), a magnet (363) is fixedly connected to one end of the traction rope (362) away from the winding frame (361), and a pressure sensor (364) is fixedly connected to the bottom of the magnet (363).

5. The beam inner sleeve pre-embedded fixing device according to claim 1, characterized in that, The leveling assembly (4) includes an annular plate (41) mounted on top of the base plate (1), an indicator (42), and a leveling screw (43).

6. The beam inner sleeve pre-embedded fixing device according to claim 5, characterized in that, The top of the annular plate (41) is fixedly connected to a bending frame (7), and one side of the bending frame (7) is provided with a bolt (8) that moves through the bending frame (7) at one end.

Images