Adjustable multi-pipe parallel pre-buried fixed combined support

Abstract

The utility model provides a kind of adjustable multi-pipe parallel pre-buried fixed combination support, belong to pipeline installation support technical field, including connecting frame, further include: expansion screw, two expansion screws are threadedly connected in the outer wall of connecting frame and about connecting frame symmetric distribution;Angle locking assembly, including: fixed disc, fixedly connected in the bottom of connecting frame, the fixed disc lateral wall slidingly connected with the clamping rod along the circumference distribution of fixed disc, the fixed disc inner wall rotationally connected with rotating plate A;Rotary disc, fixedly connected in the lateral wall of clamping rod, and the rotary disc inner wall rotationally connected with rotating plate B.In the utility model, through the cooperation of the angle locking assembly set and the clamping rod by strong tension spring, directly adjust support angle adaptation pipeline trend, without hard bending pipeline alignment support, avoid pipeline to generate internal stress due to forced deformation, reduce pipeline cracking, interface leakage and other hidden dangers, guarantee pipeline system long-term stable operation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline installation support technology, and more specifically, to an adjustable multi-pipe parallel pre-embedded fixed combination support. Background Technology

[0002] Pipe supports are core structural components used in building, municipal, and integrated utility tunnel engineering to support and fix various pipelines. Their core function is to limit the displacement, vibration, or floating of pipelines during installation and use, while distributing the pipeline's own weight and the load of the medium, preventing problems such as deformation and loosening of joints due to uneven stress over a long period, and ensuring that the pipeline is always stably arranged according to the design path. "Pre-embedded" installation is a crucial step in pipeline construction. On the one hand, pre-embedded supports can be fixed simultaneously with the building foundation at the beginning of the project, avoiding damage to the already formed structure during later excavation and installation, and reducing the risk of rework. On the other hand, for scenarios such as trench backfilling and seasonal construction, pre-embedded supports can effectively resist pipeline floating, displacement, or reverse slope caused by soil compression and water impact. Especially for lightweight plastic pipes and ductile iron pipes, it can fundamentally ensure the positional accuracy of the pipeline after pre-embedding, laying a stable foundation for subsequent pipeline connections and system operation.

[0003] A search revealed a Chinese patent application with patent number CN201821230998.4, which discloses a pre-embedded pipe fixing bracket, including a fixing block. The bottom of the fixing block is welded with two first fixing rods, and the bottom of the first fixing rods is provided with a first sliding groove. A support rod is slidably installed in the first sliding groove. Rotating holes are provided on the opposite sides of the two first fixing rods. The rotating holes are connected to the corresponding first sliding grooves. A rotating rod is rotatably installed in the rotating holes. One side of the rotating rod extends through the corresponding rotating hole to the outside of the first fixing rod and is welded with a rotating block. The other side of the rotating rod extends into the corresponding first sliding groove and is welded with a gear. The aforementioned patent, while capable of fixing pipes through the cooperation of a first fixing rod, a first sliding groove, a support rod, a rotating hole, a rotating rod, a rotating block, a gear, a rack, a second sliding groove, a locking block, a ball bearing, a first spring, an arc-shaped locking groove, a second fixing rod, an arc-shaped clamping plate, an arc-shaped clamping block, a connecting rod, a third sliding groove, a sliding rod, and a second spring, can also adapt to pipes of different specifications. In use, the pipe is placed between two arc-shaped clamping blocks. The connecting rod, sliding rod, and second spring on the lower arc-shaped clamping block secure the pipe. Rotating the rotating block causes the rotating rod to rotate. The cooperation of the annular block and the annular groove ensures the rotating rod rotates without deviation. The rotating rod drives the gear to rotate, and the gear, rotating on the rack, causes the support rod to slide within the first sliding groove. The sliding of the support rod causes the ball bearing to roll, and the rolling of the ball bearing causes the locking block to slide within the second sliding groove, causing the first spring to contract under force. The ball bearing disengages from the corresponding arc-shaped locking groove. The sliding of the support rod causes the upper arc-shaped clamping plate to move downwards, allowing the upper and lower arc-shaped clamping blocks to mate. The system clamps and fixes the pipe. The first spring's force causes the ball bearing to slide into the corresponding arc-shaped groove, clamping and fixing the support rod. The second spring's force causes the arc-shaped clamp to hold the pipe, thus achieving pipe clamping and fixation. The arc-shaped clamp and the second spring work together to clamp pipes of different specifications. However, the following shortcomings exist during use: 1. The pre-embedded pipe support has a fixed angle structure, which cannot flexibly adapt to pipelines with different directions. When the pipeline direction does not match the fixed angle of the support, construction personnel often have to forcibly adjust the pipe position to align with the support by bending it. This causes internal stress due to forced deformation, which can easily lead to pipe cracking and leakage due to changes in medium pressure and temperature, seriously affecting the stability and service life of the pipeline system. 2. The pipe support uses an integrated fixing method. When the clamping components wear out or the screws become stuck, the entire support must be removed from the pre-embedded foundation to replace the parts. This operation is cumbersome and easily damages the surrounding pre-embedded structure, resulting in extremely low maintenance efficiency.

[0004] Therefore, there is an urgent need for an adjustable multi-tube parallel pre-embedded fixed combination bracket to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable multi-tube parallel pre-embedded fixed combination bracket to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: An adjustable multi-tube parallel pre-embedded fixed combination bracket includes a connecting frame and further includes: Expansion bolts, two expansion bolts are threaded onto the outer wall of the connecting bracket and are symmetrically distributed about the connecting bracket; Angle locking components include: A fixed plate is fixedly connected to the bottom of the connecting frame. The side wall of the fixed plate is slidably connected with a locking rod distributed along the circumference of the fixed plate, and the inner wall of the fixed plate is rotatably connected with a rotating plate A. A rotating disk is fixedly connected to the side wall of the clamping rod, and a rotating plate B is rotatably connected to the inner wall of the rotating disk; A strong tension spring is fixedly connected between rotating plate A and rotating plate B, and the strong tension spring is located on the inner wall of the fixed plate. Disassemble the linkage component, which is located at the bottom of the rotating disk.

[0007] As a preferred technical solution of this application, the disassembly linkage component includes: An upper fixed bracket is fixedly connected to the bottom of the rotating disk, and two sets of connecting frames symmetrically distributed along the vertical direction of the upper fixed bracket are fixedly connected to the side wall of the upper fixed bracket. Hexagonal blocks are fixedly connected to the side wall of the connecting frame. The lower fixed bracket is slidably connected to the outer wall of the hexagonal block; A drive screw is rotatably connected to the inner wall of the lower fixed bracket, and a hexagonal hole is provided at the top of the drive screw; The driven screw is rotatably connected to the inner wall of the upper fixed bracket, and a hexagonal column that is slidably connected to a hexagonal hole is fixedly connected to the bottom of the driven screw. A limit plate is fixedly connected to the outer wall of the driven screw. A strong spring A is sleeved on the outer wall of the driven screw, and the strong spring A is fixedly connected between the limiting plate and the driving screw.

[0008] As a preferred technical solution of this application, the sidewalls of the lower fixed bracket and the upper fixed bracket are provided with two sets of sliding grooves symmetrically distributed along the vertical direction of the upper fixed bracket. The inner wall of the sliding groove is slidably connected to a slider. The slider at the bottom is threadedly connected to the driving screw, and the slider at the top is threadedly connected to the driven screw.

[0009] As a preferred technical solution of this application, a movable frame is fixedly connected between the two sets of sliders, and a sliding rod distributed along the circumference of the movable frame is fixedly connected to the outer wall of the movable frame. A clamping plate is slidably connected to the outer wall of the sliding rod, and a strong spring B is fixedly connected between the clamping plate and the sliding rod.

[0010] As a preferred technical solution of this application, the side wall of the rotating disk is fixedly connected with rotating seats symmetrically distributed along the vertical direction of the rotating disk, and multiple sets of rotating disks are provided, and the multiple sets of rotating disks are connected to each other by screw fasteners that are rotatably connected to the rotating seats.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: 1. The angle locking component, through the cooperation of a strong tension spring and a locking rod, directly adjusts the bracket angle to adapt to the pipeline route, eliminating the need to forcibly align the pipeline with the bracket. This avoids internal stress caused by forced deformation of the pipeline, reduces the risk of pipeline cracking and interface leakage, and ensures the long-term stable operation of the pipeline system. It solves the problem of fixed angle of pre-embedded brackets in the existing technology, which is difficult to adapt to pipelines with different routes. 2. The upper and lower fixed brackets are slidably separated by hexagonal blocks. Simultaneously, the drive screw and driven screw are detachable while being transmitted through hexagonal holes and hexagonal posts, facilitating the individual replacement of damaged clamping components or screws without the need for complete bracket removal. Furthermore, multiple rotating discs are connected, fixed, or disassembled using screw fasteners. The number of bracket sets can be flexibly increased or decreased according to the number of pipelines. No special tools are required for assembly and disassembly, reducing the labor intensity of construction and maintenance. This solves the problems of existing technologies where integrated bracket fixing necessitates complete bracket removal and replacement for damaged parts, resulting in cumbersome operation, easy damage to surrounding components, and low maintenance efficiency. Attached Figure Description

[0012] Figure 1 One of the overall structural schematic diagrams of the adjustable multi-tube parallel pre-embedded fixed combination bracket provided in this application; Figure 2 Schematic diagram of the overall structure of the adjustable multi-tube parallel pre-embedded fixed combination bracket provided for this application (II); Figure 3 Cross-sectional view of the rotating disk of the adjustable multi-tube parallel pre-embedded fixed combination bracket provided in this application; Figure 4 Exploded view of the drive screw portion of the adjustable multi-tube parallel pre-embedded fixed combination bracket provided in this application; Figure 5 Exploded view of the lower fixed bracket portion of the adjustable multi-tube parallel pre-embedded fixed combination bracket provided in this application; Figure 6 A cross-sectional view of the clamping plate portion of the adjustable multi-tube parallel pre-embedded fixed combination bracket provided in this application; Figure 7 A schematic diagram of the screw fastener portion of the adjustable multi-tube parallel pre-embedded fixed combination bracket provided in this application.

[0013] The image shows: 1. Expansion bolt; 2. Connecting bracket; 3. Fixed plate; 4. Clamping rod; 5. Rotating plate; 6. Rotating plate A; 7. Strong tension spring; 8. Rotating plate B; 9. Upper fixed bracket; 10. Connecting frame; 11. Hexagonal block; 12. Lower fixed bracket; 13. Slide groove; 14. Slider; 15. Drive screw; 16. Driven screw; 17. Limiting plate; 18. Hexagonal hole; 19. Hexagonal column; 20. Strong spring A; 21. Moving frame; 22. Slide rod; 23. Clamping plate; 24. Strong spring B; 25. Rotating seat; 26. Screw fastener. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0015] like Figure 1-7 As shown, the adjustable multi-tube parallel pre-embedded fixed combination bracket proposed in this embodiment includes a connecting frame 2, and further includes: Expansion screw 1: Two expansion screws 1 are threaded to the outer wall of the connecting frame 2 and are symmetrically distributed about the connecting frame 2. By using the two expansion screws 1 symmetrically distributed about the connecting frame 2, the connecting frame 2 is fastened to the pre-embedded installation surface such as the wall or ground foundation, providing a stable installation benchmark for the entire support system and avoiding the overall displacement of the support during subsequent pipeline installation or operation. Angle locking components include: The fixed plate 3 is fixedly connected to the bottom of the connecting frame 2. The side wall of the fixed plate 3 is slidably connected to the locking rod 4 distributed along the circumference of the fixed plate 3. The inner wall of the fixed plate 3 is rotatably connected to the rotating plate A6. The rotating disk 5 is fixedly connected to the side wall of the clamping rod 4, and the inner wall of the rotating disk 5 is rotatably connected to the rotating plate B8; A strong tension spring 7 is fixedly connected between rotating plate A6 and rotating plate B8. The strong tension spring 7 is located on the inner wall of the fixed plate 3. When the pipeline route needs to be adjusted, the rotating plate 5 is manually rotated, which drives the clamping rod 4 fixed to the rotating plate 5 to slide along the circumference of the fixed plate 3. At the same time, the rotating plate 5 drives the rotating plate B8 on its inner wall to rotate relative to the rotating plate A6 on the inner wall of the fixed plate 3. This stretches the strong tension spring 7 connecting the rotating plate A6 and the rotating plate B8 and stores elastic potential energy. After the rotating plate 5 drives the subsequent clamping components to adjust to the angle matching the pipeline route, the rotating plate 5 is released. The strong tension spring 7 releases its elastic potential energy, pulls the rotating plate A6 and the rotating plate B8 to reset, and then drives the clamping rod 4 to tightly clamp the inner wall of the fixed plate 3 to complete the angle locking. Disassemble the linkage component and place it at the bottom of the rotating disk 5.

[0016] like Figure 3-5As shown, in a preferred embodiment, based on the above method, further disassembling the linkage component includes: The upper fixed bracket 9 is fixedly connected to the bottom of the rotating disk 5, and two sets of connecting frames 10 are fixedly connected to the side wall of the upper fixed bracket 9, which are symmetrically distributed along the vertical direction of the upper fixed bracket 9. Hexagonal blocks 11 are fixedly connected to the side wall of the connecting frame 10. The lower fixed bracket 12 is slidably connected to the outer wall of the hexagonal block 11; The drive screw 15 is rotatably connected to the inner wall of the lower fixed bracket 12, and a hexagonal hole 18 is provided on the top of the drive screw 15; Driven screw 16 is rotatably connected to the inner wall of upper fixed bracket 9, and a hexagonal post 19 that is slidably connected to hexagonal hole 18 is fixedly connected to the bottom of driven screw 16. Limit plate 17 is fixedly connected to the outer wall of driven screw 16. A strong spring A20 is sleeved on the outer wall of the driven screw 16, and is fixedly connected between the limiting plate 17 and the drive screw 15. The hexagonal block 11 is slid into the lower fixed bracket 12 to complete the sliding connection between the upper fixed bracket 9 and the lower fixed bracket 12. Depending on the pipe diameter, the drive screw 15 on the inner wall of the lower fixed bracket 12 is rotated. The hexagonal hole 18 at the top of the drive screw 15 precisely engages with the hexagonal post 19 at the bottom of the driven screw 16, transmitting the rotational torque to the driven screw 16, causing the driven screw 16 to move along the upper fixed bracket. The inner wall of the frame 9 rotates synchronously. The driven screw 16 drives the slider 14 in the slide groove 13 on the side wall of the upper fixed bracket 9 to slide along the slide groove 13 through the threaded transmission. The driving screw 15 drives the slider 14 in the slide groove 13 on the side wall of the lower fixed bracket 12 to slide along the slide groove 13 through the threaded transmission. During this process, the strong spring A20 between the limiting plate 17 on the outer wall of the driven screw 16 and the driving screw 15 can ensure that the hexagonal column 19 always slides into the hexagonal hole 18, ensuring the transmission of power, and at the same time facilitating the sliding connection between the upper fixed bracket 9 and the lower fixed bracket 12.

[0017] like Figure 1 As shown, in a preferred embodiment, based on the above method, the lower fixed bracket 12 and the upper fixed bracket 9 are further provided with two sets of sliding grooves 13 symmetrically distributed along the vertical direction of the upper fixed bracket 9 on their side walls. The inner wall of the sliding groove 13 is slidably connected to a slider 14. The bottom slider 14 is threadedly connected to the drive screw 15, and the top slider 14 is threadedly connected to the driven screw 16. The driven screw 16 drives the slider 14 in the sliding groove 13 of the side wall of the upper fixed bracket 9 to slide along the sliding groove 13 through the threaded transmission. The drive screw 15 drives the slider 14 in the sliding groove 13 of the side wall of the lower fixed bracket 12 to slide along the sliding groove 13 through the threaded transmission.

[0018] like Figure 6As shown, in a preferred embodiment, based on the above method, a movable frame 21 is fixedly connected between the two sets of sliders 14. A sliding rod 22 distributed along the circumference of the movable frame 21 is fixedly connected to the outer wall of the movable frame 21. A clamping plate 23 is slidably connected to the outer wall of the sliding rod 22. A strong spring B24 is fixedly connected between the clamping plate 23 and the sliding rod 22. When the sliders 14 slide, they drive the movable frame 21 between the two sets of sliders 14 to move closer to the pipe. The sliding rod 22 on the outer wall of the movable frame 21 guides the clamping plate 23 to move synchronously. When the clamping plate 23 contacts the outer wall of the pipe, the strong spring B24 between the sliding rod 22 and the clamping plate 23 generates elastic force due to compression, so that the clamping plate 23 fits tightly against the outer wall of the pipe, realizing a stable clamping of the pipe. Moreover, the elastic force can adapt to pipes of different diameters.

[0019] like Figure 7 As shown, in a preferred embodiment, based on the above method, the rotating disk 5 is further provided with rotating seats 25 symmetrically distributed along the vertical direction of the rotating disk 5. The rotating disk 5 is provided with multiple sets, and the multiple sets of rotating disks 5 are connected to each other by screw fasteners 26 that are rotatably connected to the rotating seats 25. If multiple pipes need to be fixed at the same time, the multiple sets of rotating disks 5 are connected by screw fasteners 26 through the rotating seats 25 on the side wall of the rotating disk 5. By adjusting the tightness of the screw fasteners 26, the relative spacing and angle of the multiple sets of rotating disks 5 can be changed, so that the clamping components under each set of rotating disks 5 are aligned with different pipes, thereby realizing the parallel arrangement and fixing of multiple pipes.

[0020] Specifically, when using this adjustable multi-pipe parallel pre-embedded fixed combination bracket: Two expansion bolts 1, symmetrically distributed about the connecting frame 2, are used to fasten the connecting frame 2 to the pre-embedded installation surface, such as a wall or ground foundation, providing a stable installation benchmark for the entire bracket system and preventing the bracket from shifting during subsequent pipeline installation or operation; when the pipeline route needs to be adjusted, the rotating disk 5 is manually rotated, causing the clamping rod 4 fixed to the rotating disk 5 to slide along the circumference of the fixed disk 3. At the same time, the rotating disk 5 causes the rotating plate B8 on its inner wall to rotate relative to the rotating plate A6 on the inner wall of the fixed disk 3, causing the strong tension spring 7 connecting the rotating plate A6 and the rotating plate B8 to be stretched and store elastic potential energy. The rotating disk 5 then drives the subsequent clamping components to adjust to the alignment with the pipe... After the line alignment is matched at the correct angle, the rotating disk 5 is released, and the strong tension spring 7 releases its elastic potential energy, pulling the rotating plates A6 and B8 back to their original positions. This, in turn, drives the locking rod 4 to tightly clamp the inner wall of the fixed disk 3, completing the angle locking. Simultaneously, the hexagonal block 11 is slid into the lower fixed bracket 12 to complete the sliding connection between the upper fixed bracket 9 and the lower fixed bracket 12. According to the pipe diameter, the drive screw 15 on the inner wall of the lower fixed bracket 12 is rotated. The hexagonal hole 18 at the top of the drive screw 15 precisely engages with the hexagonal post 19 at the bottom of the driven screw 16, transmitting the rotational torque to the driven screw 16. This causes the driven screw 16 to rotate synchronously on the inner wall of the upper fixed bracket 9. The driven screw 16, through threaded transmission, drives the sliding groove on the side wall of the upper fixed bracket 9. The slider 14 inside the slide groove 13 slides along the slide groove 13. The drive screw 15 drives the slider 14 inside the slide groove 13 on the side wall of the lower fixed bracket 12 to slide along the slide groove 13 through the thread transmission. During this process, the strong spring A20 between the limiting plate 17 on the outer wall of the driven screw 16 and the drive screw 15 can ensure that the hexagonal column 19 always slides into the hexagonal hole 18, ensuring the transmission of power, and at the same time facilitating the sliding connection between the upper fixed bracket 9 and the lower fixed bracket 12. When the slider 14 slides, it drives the moving frame 21 between the two sets of sliders 14 to move closer to the pipeline. The slide rod 22 on the outer wall of the moving frame 21 guides the clamping plate 23 to move synchronously. When the clamping plate 23 contacts the outer wall of the pipeline, the strong spring B24 between the slide rod 22 and the clamping plate 23... The elastic force generated by compression makes the clamping plate 23 fit tightly against the outer wall of the pipe, achieving a stable clamping of the pipe. The elastic force can adapt to pipes of different diameters. When disassembly or adjustment is required, the reverse rotation of the drive screw 15 drives the slider 14 and the moving frame 21 away from the pipe. At the same time, the driven screw 16 rotates in the opposite direction to drive the slider 14 and the moving frame 21 away from the pipe. The strong spring B24 resets, and the clamping plate 23 releases the pipe. If the angle needs to be adjusted, the rotating disk 5 is rotated again to overcome the elastic force of the strong tension spring 7, so that the clamping rod 4 can be released from the locking state of the fixed disk 3. If the fixed bracket 12 needs to be removed separately, the fixed bracket 12 can be slid down along the hexagonal block 11 on the connecting frame 10 to separate it from the upper fixed bracket 9.If multiple pipes need to be fixed simultaneously, multiple sets of rotating discs 5 are connected by screw fasteners 26 via the rotating seat 25 on the side wall of the rotating disc 5. Adjusting the tightness of the screw fasteners 26 changes the relative spacing and angle of the multiple sets of rotating discs 5, so that the clamping components under each set of rotating discs 5 are aligned with different pipes, achieving parallel arrangement and fixation of multiple pipes.

Claims

1. An adjustable multi-tube parallel pre-embedded fixed combination bracket, comprising a connecting frame (2), characterized in that, Also includes: Expansion bolts (1), two expansion bolts (1) are threaded to the outer wall of the connecting frame (2) and are symmetrically distributed about the connecting frame (2); Angle locking components include: The fixed disk (3) is fixedly connected to the bottom of the connecting frame (2). The side wall of the fixed disk (3) is slidably connected to the clamping rod (4) distributed along the circumference of the fixed disk (3). The inner wall of the fixed disk (3) is rotatably connected to the rotating plate A (6). The rotating disk (5) is fixedly connected to the side wall of the clamp rod (4), and the inner wall of the rotating disk (5) is rotatably connected to the rotating plate B (8). A strong tension spring (7) is fixedly connected between rotating plate A (6) and rotating plate B (8), and the strong tension spring (7) is located on the inner wall of the fixed plate (3); Disassemble the linkage component and place it at the bottom of the rotating disk (5).

2. The adjustable multi-tube parallel pre-embedded fixed combination bracket according to claim 1, characterized in that, The disassembly linkage component includes: The upper fixed bracket (9) is fixedly connected to the bottom of the rotating disk (5), and two sets of connecting frames (10) are fixedly connected to the side wall of the upper fixed bracket (9) symmetrically distributed along the vertical direction of the upper fixed bracket (9). Hexagonal blocks (11) are fixedly connected to the side wall of the connecting frame (10). The lower fixed bracket (12) is slidably connected to the outer wall of the hexagonal block (11); The drive screw (15) is rotatably connected to the inner wall of the lower fixed bracket (12), and the top of the drive screw (15) is provided with a hexagonal hole (18). The driven screw (16) is rotatably connected to the inner wall of the upper fixed bracket (9), and the bottom of the driven screw (16) is fixedly connected to a hexagonal column (19) that is slidably connected to the hexagonal hole (18), and the outer wall of the driven screw (16) is fixedly connected to a limit plate (17). A strong spring A (20) is sleeved on the outer wall of the driven screw (16), and the strong spring A (20) is fixedly connected between the limiting plate (17) and the driving screw (15).

3. The adjustable multi-tube parallel pre-embedded fixed combination bracket according to claim 2, characterized in that, The lower fixed bracket (12) and the upper fixed bracket (9) are each provided with two sets of sliding grooves (13) symmetrically distributed along the vertical direction of the upper fixed bracket (9). The inner wall of the sliding groove (13) is slidably connected to a slider (14). The slider (14) at the bottom is threadedly connected to the drive screw (15), and the slider (14) at the top is threadedly connected to the driven screw (16).

4. The adjustable multi-tube parallel pre-embedded fixed combination bracket according to claim 3, characterized in that, A movable frame (21) is fixedly connected between the two sets of sliders (14). A sliding rod (22) distributed along the circumference of the movable frame (21) is fixedly connected to the outer wall of the movable frame (21). A clamping plate (23) is slidably connected to the outer wall of the sliding rod (22). A strong spring B (24) is fixedly connected between the clamping plate (23) and the sliding rod (22).

5. The adjustable multi-tube parallel pre-embedded fixed combination bracket according to claim 1, characterized in that, The rotating disk (5) has a rotating seat (25) symmetrically distributed along the vertical direction of the rotating disk (5) fixedly connected to its side wall. The rotating disk (5) is provided with multiple sets, and the multiple sets of rotating disks (5) are connected to each other by screw fasteners (26) that are rotatably connected to the rotating seat (25).

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