Guiding device for wall connecting piece of disc buckle frame in open caisson heightening manufacturing stage

Abstract

The invention relates to a guiding device for a plate buckle frame wall connecting piece in the open caisson heightening manufacturing stage. The guiding device is composed of a steel pipe assembly, a fixed end connecting structure and a guiding end connecting structure. The fixed end of the steel pipe assembly is fixed to a wall-penetrating split bolt wrapping steel pipe reserved on the well wall of the open caisson through a clamp shaped like a Chinese character'shan ', a split bolt and a nut in the fixed end connecting structure. The guide end of the steel pipe assembly clamps the vertical rod through a pulley in the guide end connecting structure, and the vertical rod is allowed to longitudinally slide along the pulley. In the open caisson heightening manufacturing construction process, the device can play a role of a wall connecting piece, the disc buckle frame is connected with an open caisson main body structure, and the overall stability of the disc buckle frame is enhanced; meanwhile, the other end of the guiding device composed of the fastener and the pulley can freely move up and down on the vertical rod of the disc buckle frame within a certain range, and the phenomena of scaffold deformation, toppling and the like caused by self-sinking of the open caisson in the height connection manufacturing process of the open caisson are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of caisson construction, and in particular to a guide device for a wall-connecting member of a buckle frame used in a caisson heightening production stage, for preventing scaffolding deformation caused by self-sinking of the caisson, and improving construction safety and structural stability. Background Art

[0002] In recent years, my country's urbanization construction has been developing continuously, but urban construction land has been shrinking. However, the demand for energy in the country and social life has been growing. Many power plant facilities are built in coastal areas, and the caisson technology has been fully applied in the construction of power plants. During the caisson heightening process, it is necessary to set up a disc-type operating scaffolding on the inside and outside of the well wall for workers to construct. During the caisson heightening process, the disc-type operating scaffolding used for operation and construction is separated from the well wall. It is necessary to use wall connecting parts to connect the disc-type frame to the caisson structure to ensure the overall stability of the disc-type frame. At the same time, the caisson may sink to varying degrees. It is necessary to prevent the deformation and dumping of the scaffolding caused by the self-sinking of the caisson. Safety hazards such as the deformation and dumping of the scaffolding.

[0003] In traditional caisson construction, the buckle frame is connected to the well wall through a rigid wall connection piece, but when the caisson sinks by itself, it is easy to cause the wall connection piece to be overstressed, causing the scaffolding to tilt or structural damage. Existing technologies such as CN202210119001.2 use a jack to adjust the template, but cannot solve the problem of coordinated displacement of the scaffolding and the caisson; the cantilever scaffolding of CN202410978557.6 relies on embedded parts for fixation and lacks dynamic adjustment capabilities. Therefore, there is an urgent need for a guide device that can both rigidly connect and adapt to the displacement of the caisson. Summary of the invention

[0004] The purpose of the present invention is to provide a guide device for connecting the disc buckle frame to the wall parts in the caisson height connection production stage. During the caisson height connection production, the present invention not only takes into account the role of traditional wall connecting parts in connecting the disc buckle frame to the caisson main structure and strengthening the overall stability of the disc buckle frame, but also prevents the disc buckle frame from deforming and tipping over due to the wall connecting parts driven by the self-sinking of the caisson during the caisson height connection production process, thereby protecting the safety of construction personnel and preventing the occurrence of safety accidents.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a guide device for connecting the wall parts of the disc buckle frame in the caisson height connection production stage, which is composed of a steel pipe assembly, a fixed end connection structure and a guide end connection structure; the fixed end of the steel pipe assembly is fixed to the steel pipe wrapped around the through-wall tension bolts reserved on the caisson wall by the mountain-shaped clamp, tension bolts and nuts in the fixed end connection structure; the guide end of the steel pipe assembly clamps the vertical rod through the pulley in the guide end connection structure, allowing the vertical rod to slide longitudinally along the pulley.

[0006] Furthermore, the steel pipe assembly includes a short steel pipe and a long steel pipe, and the short steel pipe is fixedly connected to the long steel pipe through a steel plate at a fixed end.

[0007] Furthermore, the fixed end connection structure is composed of a mountain-shaped clamp, a steel plate and tension bolts, and the fixed end is composed of a short steel pipe that clamps the pre-buried outer steel pipe of the caisson through the mountain-shaped clamp.

[0008] Furthermore, the butt bolts are locked with double nuts to improve the ability of the fixed end to resist loosening due to vibration and ensure a stable connection.

[0009] Furthermore, the guide end connection structure is composed of fasteners, pulleys, hinges, and hinge bolts. The long steel pipe at the guide end is fixed to the pulleys on both sides through fasteners and hinge bolts. An adjustable clamping space is formed between the two pulleys through the fasteners, hinges, and hinge bolts, and the clamping width is adapted to the outer diameter of the upright pole of the disc buckle frame.

[0010] Furthermore, the pulley surface is coated with a 4mm thick wear-resistant rubber layer, and the adjusting nut of the hinge bolt adopts a butterfly nut.

[0011] Furthermore, the guide devices are arranged at equal intervals along the circumference of the caisson, and the spacing between adjacent devices is 2-3 times the pitch of the uprights of the buckle frame.

[0012] The beneficial effects of the present invention are:

[0013] (1) Connect the buckle frame to the caisson structure to ensure the overall stability of the buckle frame and meet the construction requirements;

[0014] (2) Prevent the deformation and tipping of the buckle frame caused by the self-sinking of the caisson during the production process of the caisson height connection;

[0015] (3) The structure is simple, easy to install and dismantle, economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the structure of the guide device for connecting the wall member of the buckle frame of the present invention;

[0017] Figure 2 It is a top view of the structure of the guide device for connecting the wall member of the buckle frame of the present invention;

[0018] Figure 3 is a schematic diagram of the fixed end connection structure;

[0019] Figure 4 1. It is a schematic diagram of the guide end connection structure;

[0020] Figure 5 It is a cross-sectional view of the guide device for connecting the wall member of the present invention at the stage of manufacturing the heightening of the caisson;

[0021] Figure 6 It is a top view of the disc buckle frame connecting wall member guide device of the present invention during the caisson height connection production stage. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.

[0023] like Figures 1 to 4 As shown, a guide device for connecting wall parts of a buckle frame in the caisson heightening production stage of the present invention is composed of a steel pipe assembly 1 (including a short steel pipe 11 and a long steel pipe 12), a fixed end connection structure and a guide end connection structure. The fixed end of the steel pipe assembly 1 is fixed to the steel pipe wrapped around the through-wall tension bolts reserved on the caisson wall 100 through the mountain-shaped clamp 2, the tension bolts 4 and the nuts in the fixed end connection structure. The guide end of the steel pipe assembly 1 clamps the buckle frame upright 200 through the pulley 6 in the guide end connection structure, allowing the buckle frame upright 200 to slide longitudinally along the pulley 6, reducing horizontal displacement constraints and avoiding structural damage. The fixed end is rigidly connected to the caisson structure, and the guide end pulley slides along the buckle frame upright, which not only enhances the overall stability, but also adapts to the displacement of the caisson during self-sinking, preventing the scaffolding from deforming.

[0024] like Figure 1 , Figure 2 As shown, the fixed end connection structure is composed of a mountain-shaped clamp 2, a steel plate 3 and a tension bolt 4. The fixed end is a short steel pipe 11 clamping the caisson pre-buried outer steel pipe through the mountain-shaped clamp 2. The butt bolt 4 is locked with a double nut to improve the anti-vibration loosening ability of the fixed end and ensure a stable connection.

[0025] The guide end connection structure is composed of a fastener 5, a pulley 6, a hinge 7, and a hinge bolt 8. The long steel pipe 12 at the guide end fixes the double-sided pulleys 6 through the fastener 5 and the hinge bolt 7. An adjustable clamping space is formed between the two pulleys 6 through the fastener 5, the hinge 7, and the hinge bolt 8. The clamping width is adapted to the outer diameter of the plate buckle frame upright 200. The pulley spacing is adjusted to match the outer diameter of the plate buckle frame upright 200 through the fastener 5 and the hinge bolt 8. The double-sided pulleys 6 provide a balanced guiding force to avoid jamming caused by unilateral offset, and the clamping width is adjustable to adapt to uprights of different specifications.

[0026] During construction, the caisson sinks by itself and drives the fixed end downward, and the pulley 6 slides along the vertical pole to offset the displacement difference. It is measured that when the caisson sinks 50mm, the horizontal deformation of the scaffolding is less than 2mm, which is much lower than the 15mm deformation of traditional wall ties.

[0027] Preferably, the short steel pipe 11 and the long steel pipe 12 are connected by a steel plate 3, and the steel plate 3 has 6 Φ20mm weight-reducing holes. This design reduces the weight of the device by 18% and shortens the on-site assembly time to 20 minutes per set.

[0028] Preferably, the surface of the pulley 6 is coated with a 4 mm thick wear-resistant rubber layer, and the adjusting nut of the hinge bolt 8 is a butterfly nut. Tests show that the rubber layer reduces the sliding friction coefficient from 0.15 to 0.08 and reduces the noise by 40 dB.

[0029] Preferably, the hinge bolt 8 comprises a hinge shaft 81 and an adjusting nut 82, and threaded sections are arranged at both ends of the hinge shaft 81, and the clamping force of the pulley 6 is controlled by adjusting the nut 82. A quick adjustment function is provided to meet the tightness requirements of different construction stages.

[0030] like Figure 5 As shown in Figure 6, during the construction process of the caisson heightening stage, the fixed end of the short steel pipe is connected to the caisson structure through tension bolts and fixed with mountain-shaped clamp bolts. The other end of the long steel pipe is fixed to two pulleys through two fasteners, and the two pulley ports are fixed by hinge bolts.

[0031] Preferably, the guide devices are arranged at equal intervals along the circumference of the caisson, and the spacing between adjacent devices is 2-3 times the pitch of the upright poles of the buckle frame to ensure that the overall force of the scaffolding is uniform and avoid local stress concentration. For example, one group is arranged every 3m along the circumference of the caisson.

[0032] The construction method of the guide device comprises the following steps:

[0033] Step 1: pre-embed the through-wall tension bolts and wrap the steel pipe 101 in the caisson wall 100;

[0034] Step 2: Fix the short steel pipe 11 to the outer steel pipe through the mountain clamp 2 and the docking bolt 4;

[0035] Step 3: Connect the long steel pipe 12 and the short steel pipe 11 through the steel plate 3, and install the pulley 6 through the fastener 5;

[0036] Step 4: Adjust the hinge 7 and the hinge bolt 8 so that the pulley 6 clamps the buckle frame upright 200 to form a slidable guide structure.

[0037] Through the above steps, quick installation and disassembly can be achieved, and the construction efficiency can be improved by more than 30%.

Claims

1. A guide device for connecting wall parts of a caisson in the production stage of heightening the caisson, characterized by: It consists of a steel pipe assembly, a fixed end connection structure and a guide end connection structure; the fixed end of the steel pipe assembly is fixed to the steel pipe wrapped around the through-wall tension bolts reserved on the wall of the caisson through the mountain-shaped clamp, tension bolts and nuts in the fixed end connection structure; the guide end of the steel pipe assembly clamps the vertical pole through the pulley in the guide end connection structure, allowing the vertical pole to slide longitudinally along the pulley.

2. The guide device for connecting the wall parts of the caisson heightening production stage according to claim 1 is characterized by: The steel pipe assembly comprises a short steel pipe and a long steel pipe, and the short steel pipe is fixedly connected to the long steel pipe through a steel plate at a fixed end.

3. The guide device for connecting the wall parts of the caisson heightening production stage according to claim 1 is characterized by: The fixed end connection structure is composed of a mountain-shaped clamp, a steel plate and tension bolts, and the fixed end is composed of a short steel pipe that clamps the pre-buried outer steel pipe in the caisson through the mountain-shaped clamp.

4. The guide device for connecting the wall parts of the caisson heightening production stage according to claim 3 is characterized by: The butt bolts are locked with double nuts to improve the fixed end's resistance to vibration loosening and ensure a secure connection.

5. The guide device for connecting the wall parts of the caisson heightening production stage according to claim 1 is characterized by: The guide end connection structure is composed of fasteners, pulleys, hinges, and hinge bolts. The long steel pipe at the guide end is fixed to the pulleys on both sides through fasteners and hinge bolts. An adjustable clamping space is formed between the two pulleys through fasteners, hinges, and hinge bolts. The clamping width is adapted to the outer diameter of the disc buckle frame upright.

6. The guide device for connecting the wall parts of the caisson heightening production stage according to claim 5 is characterized by: The pulley surface is covered with a 4mm thick wear-resistant rubber layer, and the adjusting nut of the hinge bolt adopts a butterfly nut.

7. The guide device for connecting the wall components of the caisson heightening production stage according to claim 1 is characterized by: The guide devices are arranged at equal intervals along the circumference of the caisson, and the spacing between adjacent devices is 2-3 times the pitch of the uprights of the buckle frame.

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