Flange plate adjusting device for tubular truss structure and construction method

Abstract

The present application relates to the technical field of pipe truss installation construction, and particularly relates to a flange adjusting device for a pipe truss structure and a construction method. The present application comprises an outer toothed disc, an inner toothed disc, a fixed chuck and bolts, the outer toothed disc and the inner toothed disc are engaged by single ratchet teeth, the outer toothed disc and the inner toothed disc are connected with the fixed chuck by the bolts respectively, the outer toothed disc and the fixed chuck clamp and butt joint one side flange, the inner toothed disc and the fixed chuck clamp and butt joint the other side flange, and a rotating handle is installed on the fixed chuck. The outer toothed disc, the inner toothed disc, the fixed chuck and the bolts are connected with each other to form a fixture for connecting the flange, a detachable and adjustable connecting structure is formed by the mutual engagement of the outer toothed disc and the inner toothed disc, the pipe truss is conveniently tensioned and the flanges are conveniently butt jointed, and the work in the air is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe truss installation construction, and particularly relates to a flange plate adjusting device for a pipe truss structure and a construction method. BACKGROUND

[0002] A steel bar processing shed is a common temporary structure in a construction site, and a pipe truss structure is the most commonly used structure for the steel bar processing shed due to its light weight and low cost. However, due to the size and transportation restrictions, large pipe truss structure components cannot be integrally assembled on site, and therefore segmented flange plate nodes are required for segmented installation. The pipe truss structure generally has small rod sections and insufficient rigidity, and is prone to deformation during transportation, which causes the flange plate nodes to be misaligned during on-site installation. SUMMARY

[0003] In order to solve the problem of pipe truss installation alignment, the present application provides a flange plate adjusting device for a pipe truss structure and a construction method.

[0004] In one aspect, the present application provides a flange plate adjusting device for a pipe truss structure, which adopts the following technical solution:

[0005] A flange plate adjusting device for a pipe truss structure comprises an outer toothed disc, an inner toothed disc, a fixed chuck, and a bolt. The outer toothed disc and the inner toothed disc are engaged by one-way ratchet teeth. The outer toothed disc and the inner toothed disc are connected to the fixed chuck by the bolt. The outer toothed disc and the fixed chuck clamp one side of the flange plate. The inner toothed disc and the fixed chuck clamp the other side of the flange plate. A rotating handle is installed on the fixed chuck.

[0006] By adopting the above technical solution, the outer toothed disc, the inner toothed disc, the fixed chuck, and the bolt are connected to form a chuck for connecting the flange plate. The outer toothed disc and the inner toothed disc are engaged to form a detachable and adjustable connecting structure, which facilitates the tensioning of the pipe truss and the butt joint of the flange plate, and facilitates high-altitude work.

[0007] Preferably, the bolt is fixedly welded to the outer toothed disc and the inner toothed disc. Two bolts are welded to the outer toothed disc and the inner toothed disc, respectively. One of the bolts passes through a reserved hole in the flange plate during installation. The bolt passes through the fixed chuck and is fixed by a nut installed on one side.

[0008] By adopting the above technical solution, the bolt is welded to the outer toothed disc and the inner toothed disc, which facilitates the installation of the outer toothed disc and the inner toothed disc on the flange plate by the bolt, and facilitates high-altitude work.

[0009] Preferably, 1-4 groups of flange plate adjusting devices are arranged on the same group of flange plates.

[0010] By adopting the technical scheme, the flange plate adjusting device effectively butts and adjusts the flange plates and keeps the two flange plates concentric with each other.

[0011] Preferably, the flange plate is provided with an alignment device, the alignment device comprises a laser emitter and a laser target, the laser emitter and the laser target are respectively installed on the two sides of the butted flange plates, the laser emitter and the laser target are respectively clamped and installed on the flange plate through a clamping clamp, the laser emitter emits laser through a reserved hole on the flange plate, and the laser target is arranged at the center of the reserved hole on the flange plate.

[0012] By adopting the technical scheme, the alignment device can conveniently mark the flange plate during adjustment, avoid visual deviation, and improve installation accuracy.

[0013] On the other hand, the flange plate adjusting construction method for the pipe truss structure provided by the present application adopts the following technical scheme:

[0014] The method comprises the following operation steps:

[0015] The pipe truss is hoisted to a predetermined installation position, and the pipe truss is placed in a continuous end-to-end manner;

[0016] The flange plate adjusting devices are respectively installed on the flange plates at the head and tail of the pipe truss;

[0017] The flange plates at the head and tail of the pipe truss are butted through the pulling device, and the flange plate adjusting devices on the flange plates are mutually buckled and installed;

[0018] The flange plate adjusting devices are adjusted so that the bolt holes on the butted flange plates at the head and tail of the pipe truss are aligned;

[0019] The pipe truss is connected and fixed through bolts or welding, and then the flange plate adjusting devices are removed.

[0020] By adopting the technical scheme, the flange plate adjusting device is used to adjust and align the pipe truss, the installation efficiency of the pipe truss is improved, and the construction personnel can conveniently install the pipe truss in the air.

[0021] Preferably, when the pipe truss is hoisted, the pipe truss is sequentially hoisted and placed according to the construction guidance and the marks on the pipe truss, the cumulative installation error is checked, and when the cumulative installation error exceeds a predetermined value, the installation is adjusted or compensated.

[0022] By adopting the technical scheme, the cumulative installation error is checked, and the error accumulation is prevented from excessively affecting the overall installation.

[0023] Preferably, the flange plate adjusting device is installed when the pipe truss is not hoisted or is installed after the pipe truss is hoisted.

[0024] By adopting the technical scheme, the installation without hoisting avoids high-altitude installation, reduces the difficulty of high-altitude operation, and is suitable for relatively low buildings after installation, and a smaller flange adjusting device is used.

[0025] Preferably, the pulling device tightens and fixes one end when the pipe truss is pulled, so that the whole is tensioned, and the flange adjusting device meshes the outer tooth disc and the inner tooth disc when buckling.

[0026] By adopting the technical scheme, the whole tensioning reduces deformation error and temperature error, and improves installation precision.

[0027] Preferably, the adjusting flange adjusting device monitors the internal stress change and torsional force of the pipe truss.

[0028] By adopting the technical scheme, the internal stress change and the torsional force are used to predict the installation fastening degree, so as to avoid insufficient or excessive tensioning force.

[0029] Preferably, the flange adjusting device sprays the installation workpiece contact surface before use.

[0030] By adopting the technical scheme, the sand blasting treatment is beneficial to improve the surface friction of the flange adjusting device and reduce the slip during adjustment.

[0031] In summary, the present application has the following beneficial technical effects:

[0032] 1. The outer tooth disc, the inner tooth disc, the fixed chuck and the bolt are connected to form a connecting flange clamp, and the outer tooth disc and the inner tooth disc are meshed to form a detachable and adjustable connecting structure, so that the pipe truss is tensioned and the flanges are connected, and the work in the air is facilitated.

[0033] 2. The bolt is welded on the outer tooth disc and the inner tooth disc, the outer tooth disc and the inner tooth disc are conveniently installed on the flange through the bolt, the high-altitude operation is facilitated, the flange adjusting device effectively connects and adjusts the flange, and the two flanges are kept concentric, the alignment device is convenient for marking when adjusting the flange, the visual deviation is avoided, and the installation precision is improved.

[0034] 3. Utilize flange adjustment devices to adjust and align the tubular truss, improving installation efficiency and facilitating installation at heights by construction personnel. This allows for checking cumulative installation errors to prevent excessive error accumulation from affecting the overall installation. Installation before hoisting avoids high-altitude work, reducing the difficulty of such operations. Post-installation is suitable for lower buildings and requires fewer flange adjustment devices. Overall tensioning reduces deformation and temperature errors, improving installation accuracy. Internal stress changes and torsional force are used to predict the tightness of installation, preventing insufficient or excessive tension. Sandblasting improves the surface friction of the flange adjustment devices, reducing slippage during adjustment. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the front mounting structure of the flange adjustment device of the present invention;

[0036] Figure 2 This is a schematic diagram of the side mounting structure of the flange adjustment device of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Flange, 20. Pipe truss, 1. External gear plate, 2. Internal gear plate, 3. Fixed chuck, 4. Bolt, 5. Rotating handle, 6. Laser emitter, 7. Laser target, 8. Mounting clamp. Detailed Implementation

[0039] The following is in conjunction with the appendix Figures 1-2 The present invention will be described in further detail below.

[0040] Example 1:

[0041] This invention discloses a flange adjustment device for tubular truss structures, referring to... Figure 1 and 2 It includes an outer gear plate 1, an inner gear plate 2, a fixed chuck 3, and bolts 4. The outer gear plate 1 and the inner gear plate 2 are engaged by one-way ratchet teeth. The outer gear plate 1 and the inner gear plate 2 are respectively connected to the fixed chuck 3 by bolts 4. The outer gear plate 1 and the fixed chuck 3 clamp the flange 10 on one side of the mating, and the inner gear plate 2 and the fixed chuck 3 clamp the flange 10 on the other side of the mating. A rotating handle 5 is installed on the fixed chuck 3.

[0042] Example 2:

[0043] Based on Example 1, the following is added:

[0044] Reference Figure 1 and 2The bolts 4 are fixedly welded to the outer gear plate 1 and the inner gear plate 2 respectively. Two bolts 4 are welded to the outer gear plate 1 and the inner gear plate 2 respectively. One of the bolts 4 passes through the reserved hole on the flange 10 during installation. The bolt 4 passes through the fixing chuck 3 and is fixed by installing a nut on the passing side.

[0045] One to four sets of flange adjustment devices are provided on the same set of interlocking flanges 10.

[0046] Reference Figure 1 An alignment device is installed on the flange 10. The alignment device includes a laser emitter 6 and a laser target 7. The laser emitter 6 and the laser target 7 are respectively installed on the mating sides of the flange 10. The laser emitter 6 and the laser target 7 are respectively clamped on the flange 10 by mounting clips 8. The laser emitter 6 emits a laser beam that passes through a pre-drilled hole on the flange 10. The laser target 7 is located at the center of the pre-drilled hole on the flange 10.

[0047] Example 3:

[0048] This invention discloses a flange adjustment construction method for tubular truss structures, comprising the following steps:

[0049] Hoist the tubular truss 20 to the predetermined installation position and place the tubular truss 20 end to end close together continuously.

[0050] Flange adjustment devices are installed on the flanges 10 at both ends of the tubular truss 20.

[0051] The flanges 10 at the beginning and end of the truss 20 are connected by the tensioning device, and the flange adjustment devices on the flanges 10 are fastened together.

[0052] Adjust the flange adjustment device to align the bolt holes on the flanges 10 that connect the ends of the pipe truss 20.

[0053] The truss 20 is connected and fixed by bolts or welding, and then the flange adjustment device is removed.

[0054] During the hoisting of the tubular truss 20, it shall be hoisted and placed in sequence according to the construction instructions and the markings on the tubular truss 20. The cumulative installation error shall be checked. If the cumulative installation error exceeds the predetermined value, the installation shall be adjusted or compensated.

[0055] The flange adjustment device is installed either before the pipe truss 20 is lifted or after it has been lifted and installed.

[0056] When the traction device pulls the truss 20, it tightens and fixes one end, thus making the whole structure tensile. When the flange adjustment device is engaged, it meshes the outer toothed disc 1 and the inner toothed disc 2 with each other.

[0057] The inner stress change and the torsion force of the pipe truss 20 are monitored when the flange adjusting device is adjusted.

[0058] The flange adjusting device is sandblasted before use to treat the contact surface of the installed workpiece.

[0059] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A flange adjustment device for a tubular truss structure, characterized in that: Includes an outer gear plate (1), an inner gear plate (2), a fixed chuck (3), and bolts (4). The outer gear plate (1) and the inner gear plate (2) are engaged by a one-way ratchet. The outer gear plate (1) and the inner gear plate (2) are respectively connected to the fixed chuck (3) by bolts (4). The outer gear plate (1) and the fixed chuck (3) clamp the flange (10) on one side of the mating, and the inner gear plate (2) and the fixed chuck (3) clamp the flange (10) on the other side of the mating. A rotating handle (5) is installed on the fixed chuck (3); The bolt (4) is fixedly welded to the outer gear plate (1) and the inner gear plate (2) respectively. Two bolts (4) are welded to the outer gear plate (1) and the inner gear plate (2) respectively. One of the bolts (4) passes through the reserved hole on the flange (10) during installation. The bolt (4) passes through the fixed chuck (3) and is fixed by installing a nut on the passing side. An alignment device is installed on the flange (10). The alignment device includes a laser emitter (6) and a laser target (7). The laser emitter (6) and the laser target (7) are respectively installed on both sides of the flange (10). The laser emitter (6) and the laser target (7) are respectively clamped on the flange (10) by mounting clips (8). The laser emitter (6) emits a laser through a reserved hole on the flange (10). The laser target (7) is set at the center of the reserved hole on the flange (10). A flange adjustment construction method for tubular truss structures includes the following steps: The tubular truss (20) is hoisted to the predetermined installation position and placed end to end of the tubular truss (20) one after another. Flange adjustment devices are installed on the flanges (10) at the beginning and end of the tubular truss (20); The flanges (10) at the beginning and end of the tubular truss (20) are connected by a traction device, and the flange adjustment devices on the flanges (10) are fastened together. Adjust the flange adjustment device to align the bolt holes on the flanges (10) at both ends of the pipe truss (20); The tubular truss (20) is connected and fixed by bolts or welding, and then the flange adjustment device is removed; When the traction device pulls the truss (20), it tightens and fixes one end, so that the whole structure is tensioned. When the flange adjustment device is engaged, it meshes the outer toothed disc (1) and the inner toothed disc (2) with each other.

2. The flange adjustment device for a tubular truss structure according to claim 1, characterized in that: One to four sets of flange adjustment devices are installed on the same set of interlocking flanges (10).

3. A flange adjustment device for a tubular truss structure according to claim 1, characterized in that: When hoisting the tubular truss (20), it shall be hoisted and placed in sequence according to the construction instructions and the markings on the tubular truss (20). The cumulative installation error shall be checked. If the cumulative installation error exceeds the predetermined value, the installation shall be adjusted or compensated.

4. A flange adjustment device for a tubular truss structure according to claim 1, characterized in that: The flange adjustment device is installed before the pipe truss (20) is lifted or after it has been lifted.

5. A flange adjustment device for a tubular truss structure according to claim 1, characterized in that: When adjusting the flange, monitor the changes in internal stress and the magnitude of torsional force of the pipe truss (20).

6. A flange adjustment device for a tubular truss structure according to claim 1, characterized in that: Before use, the flange adjustment device performs sandblasting on the contact surface of the installed workpiece.

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