A positioning device for thin-walled steel tube concrete pipes of various sizes

Abstract

The present invention relates to the technical field of thin-walled steel tube concrete pouring positioning, and discloses a thin-walled steel tube concrete pipeline positioning device suitable for multiple sizes, comprising a steel tube, a PVC tube, a positioning device, and an adjustable magnetic module. The four are used in combination to play a role. The adjustable magnetic module adopts a combination of module A+n×module B+module C. By adjusting the number of modules B in the overall assembly, it can be adapted to the combination of steel tubes and PVC tubes of different sizes and diameters. The PVC tube is then accurately positioned at the center of the steel tube through the positioning device, and the position of the PVC tube is not affected when pouring concrete. A steel block is provided at the end of the limiting bolt. The steel block increases the contact area between the limiting bolt and the PVC tube, enhances stability, and prevents the limiting bolt from loosening and falling off. A cross handle is provided at one end of the fixing bolt. While facilitating twisting, it also stably fixes the positioning device on the steel tube, effectively preventing the positioning device from shifting.

Description

Technical Field

[0001] The invention relates to the field of thin-walled steel tube concrete pouring positioning, and in particular to a thin-walled steel tube concrete pipeline positioning device suitable for multiple sizes. Background Art

[0002] Thin-walled steel tube concrete is a new type of composite structure. The interlayer between the steel tube and the inner tube is filled with concrete. While maintaining the technical advantages of traditional steel tube concrete components such as high bearing capacity, good plasticity and toughness, fast construction and excellent corrosion resistance, it also obtains greater bending stiffness due to its more open cross-section. It also has the advantages of light weight, good seismic resistance and fire resistance.

[0003] For example, the Chinese patent publication number CN218912276U discloses a rotatable quick sleeve centering positioning device, which belongs to the technical field of construction equipment and can solve the problem of inaccurate centering positioning of pipelines in the existing construction process, which affects the construction quality. The device comprises a fixing frame I and a fixing frame II with a C-shaped cross-section, wherein the two free ends of the fixing frame I and the fixing frame II are symmetrically provided with gaskets, the gaskets are provided with openings, the through-holes of the fixing frame I are provided with bolts I, the free ends of the fixing frame I and the fixing frame II are connected by bolts I, the side plates of the fixing frame I and the fixing frame II are symmetrically provided with openings, the openings are provided with bolts II, the side plates of the fixing frame II near the free end are symmetrically provided with openings, the openings are provided with bolts III, and the bolts II and bolts III are respectively provided with baffles at one end of the inner sides of the fixing frame I and the fixing frame II;

[0004] For example, Chinese patent publication number CN114738553A discloses a pipeline centering construction method and centering device. A standardized centering sleeve is used to center the pipeline. The outer diameter of the standardized centering sleeve is determined based on the inner diameter standard of the pre-buried sleeve, and the inner diameter is determined based on the outer diameter of the pipeline. Centering sleeves of relevant sizes are mass-produced based on the pre-buried sleeve and pipeline combination commonly used during construction, or they are customized based on project needs. The centering sleeve of the present invention includes a sleeve wall, an airbag, and a positioning column. The airbag is wrapped around the outer side of the sleeve wall, and the positioning column is arranged on the inner side of the sleeve wall.

[0005] For example, Chinese patent publication number CN112260619A discloses a level adjustment device and a photovoltaic power generation foundation ground bolt casting and fixing system. The level adjustment device includes a base, a mounting seat, a fixed support mechanism, and at least two movable support mechanisms. The fixed support mechanism is disposed on the base, and the mounting seat is disposed on the top of the fixed support mechanism; the movable support mechanism is disposed on the base, and the mounting seat is disposed on the top of the movable support mechanism. The connection line between the fixed support mechanism and the at least two movable support mechanisms is non-linear; the mounting seat is used to install ground bolts. The photovoltaic foundation ground bolt casting and fixing system includes the above-mentioned level adjustment device, as well as a fixing mechanism disposed on the mounting seat for fixing the ground bolts, a mold barrel disposed on the base for pouring concrete, and a reinforcement mechanism for fixing the mold barrel.

[0006] For example, Chinese patent publication number CN206234479U discloses a pipe centering device inside a casing. The device comprises a large ring and a small ring. The small ring is located inside the large ring and is fixed concentrically with the large ring via at least one supporting device. The supporting device is located between the large and small rings and connects the large and small rings. The outer diameter of the large ring matches the inner diameter of the casing, while the inner diameter of the small ring matches the outer diameter of the pipe. To install the pipe, simply insert the pipe into the small ring of the centering device, move the pipe to its installation location, and then hammer the centering device onto the pipe into the middle of the casing, ensuring that the large and small rings are level.

[0007] For example, Chinese patent publication number CN218311683U discloses a device for centering and correcting pipe orifices for medium-to-large diameter pipes. The device comprises an adjusting ring, an adjusting rod, a fixing block, and a fixing bolt. The adjusting ring is fitted over the pipe to be welded; a fixing nut is provided at the upper end of the adjusting rod and is fixedly connected to the adjusting ring; the adjusting rod is used to adjust the distance between the adjusting ring and the pipe to be welded; the fixing block is provided on the adjusting ring; and the fixing bolt is connected to the fixing block and is used to secure the fixing block. The device also includes an adjusting block, which is provided at the lower end of the adjusting rod and is used to adjust the distance between the adjusting ring and the pipe to be welded.

[0008] In summary, there are many drawbacks in the existing thin-walled steel tube concrete pouring positioning, which are summarized as follows:

[0009] ① Before pouring concrete, accurate positioning of the PVC pipe is an important step in the formation of thin-walled steel tube concrete structures. During the entire pouring process, the PVC inner pipe must be centered and stably fixed inside the steel pipe to form a standard thin-walled steel tube concrete component. Since the steel pipe and PVC pipe are independent of each other, it is particularly difficult to center and fix the PVC pipe, which will further affect the position of the inner pipe when pouring concrete.

[0010] ② Although there are steel pipe centering positioning devices in the existing technology, most of them are only applicable to thin-walled steel pipe concrete components with the same pipe diameter. They cannot be used if the steel pipe size changes. They are relatively limited and have low adjustability. Summary of the Invention

[0011] In view of the deficiencies in the prior art, the present invention provides a thin-walled steel tube concrete pipe positioning device applicable to multiple sizes to solve the above problems.

[0012] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0013] A positioning device for thin-walled steel pipe concrete pipes of multiple sizes, comprising a steel pipe, a PVC pipe, a positioning device, and an adjustable magnetic module. The PVC pipe is located inside the steel pipe, and the positioning device is connected to the adjustable magnetic module. The adjustable magnetic module includes module A, module B, and module C. Modules A, B, and C are connected by magnetic attraction. The positioning device includes a fixing structure and a limiting structure. The fixing structure is connected to module A. The limiting structure includes a limiting bolt and a limiting synchronization ruler. The limiting bolt is threadedly connected to module C, and a steel block is provided at the end of the limiting bolt. The steel block abuts against the surface of the PVC pipe, and the limiting synchronization ruler is penetrated. On module C, and above the limit bolt, the surface of the limit synchronization ruler is provided with a scale, and a limit block is provided at one end. The limit block corresponds to the nut of the limit bolt, and the adjustable magnetic suction module adopts a combination of module A+n×module B+module C, where n is a group. The number of modules B in the overall assembly can be adjusted to adapt to the combination of steel pipes and PVC pipes of different sizes and diameters. The PVC pipe is then accurately positioned in the center of the steel pipe through the positioning device, and the position of the PVC pipe will not be affected when pouring concrete. A steel block is provided at the end of the limit bolt. The steel block increases the contact area between the limit bolt and the PVC pipe, enhances stability, and prevents the limit bolt from loosening and falling off.

[0014] Preferably, the fixing structure includes a fixing bolt and a fixed synchronization ruler, the fixing bolt is threadedly connected to module A, the surface of the limit synchronization ruler is provided with a scale, and a limit stop block is provided at one end, the limit stop block corresponds to the nut of the limit bolt, and the limit stop block cooperates with the nut of the limit bolt to accurately grasp the moving distance of the limit bolt, and the limit stop block can ensure that the limit synchronization ruler will not fall off during use. The fixed synchronization ruler and the fixed stop block are similar, and can also achieve accurate control of the moving distance of the fixed bolt and prevent it from falling off. Unlike the limit bolt, the fixing bolt and the fixed stop block need to be manually aligned to ensure that the fixed stop block and the cross handle are on the same plane before reading the movement value.

[0015] Preferably, the fixed synchronization ruler is passed through the module A and is located above the fixing bolt.

[0016] Preferably, the surface of the fixed synchronous ruler is provided with scales, and fixed blocks are provided at both ends.

[0017] Preferably, a cross handle is provided at one end of the fixing bolt, which not only facilitates twisting but also stably fixes the positioning device on the steel pipe, effectively preventing the positioning device from shifting.

[0018] Preferably, the module C has a T-shaped outline, and strong magnetic strips are provided on the left and right sides.

[0019] Preferably, an iron bar is provided on one side of the module B relative to the module C, and a strong magnetic bar is provided on the other side relative to the module A.

[0020] Preferably, the module B can be connected to the left and right sides of the module C by magnetic adsorption.

[0021] Preferably, the module A is a bent part, and iron bars are provided on the left and right sides.

[0022] Preferably, the left and right sides of the module A are connected to the module B by magnetic adsorption.

[0023] Compared with the prior art, the present invention discloses a thin-walled steel pipe concrete pipe positioning device suitable for multiple sizes, including a steel pipe, a PVC pipe, a positioning device, and an adjustable magnetic module. The four are used in combination to play a role.

[0024] ① The adjustable magnetic module adopts the combination of module A + n × module B + module C. By adjusting the number of module B in the overall assembly, it can adapt to the combination of steel pipes and PVC pipes of different diameters;

[0025] ②The PVC pipe is then accurately positioned at the center of the steel pipe through the positioning device, and the position of the PVC pipe will not be affected when pouring concrete;

[0026] ③ A steel block is provided at the end of the limit bolt, which increases the contact area between the limit bolt and the PVC pipe, enhances stability, and prevents the limit bolt from loosening and falling off;

[0027] ④ A cross handle is provided at one end of the fixing bolt, which not only facilitates twisting but also stably fixes the positioning device on the steel pipe, effectively preventing the positioning device from shifting;

[0028] ⑤ The surface of the limit synchronization ruler is provided with a scale, and a limit block is provided at one end. The limit block fits in correspondence with the nut of the limit bolt. On the one hand, the limit block and the nut of the limit bolt can cooperate with each other to accurately grasp the moving distance of the limit bolt. On the other hand, the limit block can ensure that the limit synchronization ruler will not fall off during use. The fixed synchronization ruler and the fixed block are the same, and can also accurately grasp the moving distance of the fixed bolt and prevent it from falling off. Unlike the limit bolt, the fixed bolt and the fixed block need to be manually aligned to ensure that the fixed block and the cross handle are on the same plane before reading the movement value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a thin-walled steel tube concrete pipe positioning device applicable to multiple sizes of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the positioning device and the adjustable magnetic module of the present invention;

[0031] Figure 3 This is a top view of the structure of the positioning device and the adjustable magnetic module of the present invention;

[0032] Figure 4 This is a schematic structural diagram of a third embodiment of a thin-walled concrete-filled steel pipe positioning device applicable to multiple sizes of the present invention;

[0033] Figure 5 This is a schematic structural diagram of the module A and the fixed structure of the present invention;

[0034] Figure 6 This is a schematic structural diagram of module B of the present invention;

[0035] Figure 7 Schematic diagram of the structure of module C and the limiting structure of the present invention;

[0036] Figure 8 This is a schematic structural diagram of a second embodiment of a thin-walled concrete-filled steel pipe positioning device applicable to multiple sizes of the present invention;

[0037] Figure 9 This is a schematic diagram of the numerical calculation logic verification of the steel pipe and the PVC pipe in Example 1 of the thin-walled steel pipe concrete pipe positioning device applicable to multiple sizes of the present invention;

[0038] Figure 10 This is a schematic diagram of the numerical calculation logic verification of the adjustable magnetic suction module in Example 1 of the thin-walled steel tube concrete pipe positioning device applicable to multiple sizes of the present invention;

[0039] Figure 11 It is a structural schematic diagram of the position-limiting synchronous ruler of the present invention. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0041] A thin-walled steel pipe concrete pipeline positioning device suitable for multiple sizes, including a steel pipe 1, a PVC pipe 2, a positioning device 3, and an adjustable magnetic module 4. The PVC pipe 2 is located inside the steel pipe 1, and the positioning device 3 is connected to the adjustable magnetic module 4. The adjustable magnetic module 4 includes a module A41, a module B42, and a module C43. The modules A41, B42, and C43 are connected by magnetic attraction. The positioning device 3 includes a fixed structure 31 and a limiting structure 32. The fixed structure 31 is connected to the module A41. The limiting structure 32 includes a limiting bolt 321 and a limiting synchronization ruler 322. The limiting bolt 321 is threadedly connected to the module C43, and a steel block is provided at the end of the limiting bolt 321. The steel block abuts against the surface of the PVC pipe 2. The steel block The block increases the contact area between the limit bolt 321 and the PVC pipe 2, enhances stability, and prevents the limit bolt 321 from loosening and falling off. The limit synchronization ruler 322 is passed through the module C43. The limit synchronization ruler 322 and the module C43 have a certain damping value to ensure that the limit synchronization ruler 322 does not slide easily on the module C43 and is located above the limit bolt 321. The surface of the limit synchronization ruler 322 is provided with a scale, and limit blocks 3221 are provided at both ends. One end of the limit block 3221 corresponds to the nut of the limit bolt 321. When the limit bolt 321 is screwed, the limit synchronization ruler 322 retracts inward. It is necessary to ensure that the four limit bolts 321 are screwed in to the same length according to the outer diameter of the PVC pipe 2, so that the PVC pipe 2 is accurately centered in the steel pipe 1.

[0042] The fixing structure 31 includes a fixing bolt 311 and a fixed synchronization ruler 312. The fixing bolt 311 is threadedly connected to the module A41. The fixed synchronization ruler 312 is passed through the module A41. The fixed synchronization ruler 312 and the module A41 have a certain damping value to ensure that the fixed synchronization ruler 312 does not slide easily on the module A41 and is located above the fixing bolt 311. The surface of the fixed synchronization ruler 312 is provided with a scale, and fixed blocks 3121 are provided at both ends. A cross handle 3111 is provided at one end of the fixing bolt 311, which makes it easy to twist and can stably fix the positioning device 3 as a whole on the steel pipe 1, effectively preventing deviation.

[0043] The module C43 has a T-shaped profile and is provided with strong magnetic strips on the left and right sides. The module B42 is provided with an iron bar on one side relative to the module C43 and a strong magnetic strip on the other side relative to the module A41. The module B42 can be magnetically adsorbed and connected to the left and right sides of the module C43. The module A41 is a bent part and is provided with iron bars on the left and right sides. The left and right sides of the module A41 are magnetically adsorbed and connected to the module B42. Example

[0044] Based on the above other technical features remain unchanged, such as Figure 8 As shown, in the mode of "module A41+n×module B42+module C43", the value of n can also be 0, that is, module B42 is not used, and direct magnetic adsorption is adopted in the form of module A41+module C43. Example

[0045] Based on the above other technical features remain unchanged, such as Figure 4 As shown, in the pattern of "module A41+n×module B42+module C43", the value of n can also be 2, that is, 2 groups, and the 2 groups include 4 modules B42.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0047] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0048] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A positioning device for thin-walled concrete-filled steel pipes of various sizes, characterized by: The invention comprises a steel pipe (1), a PVC pipe (2), a positioning device (3), and an adjustable magnetic module (4), wherein the PVC pipe (2) is located inside the steel pipe (1), the positioning device (3) is connected to the adjustable magnetic module (4), the adjustable magnetic module (4) comprises a module A (41), a module B (42), and a module C (43), wherein the modules A (41), B (42), and C (43) are connected by magnetic attraction, and the positioning device (3) comprises a fixing structure (31) and a limiting structure (32), wherein the fixing structure (31) is connected to the module A (41). The limiting structure (32) includes a limiting bolt (321) and a limiting synchronous ruler (322). The limiting bolt (321) is threadedly connected to the module C (43), and a steel block is provided at the end of the limiting bolt (321). The steel block is pressed against the surface of the PVC pipe (2). The limiting synchronous ruler (322) is passed through the module C (43) and is located above the limiting bolt (321). The surface of the limiting synchronous ruler (322) is provided with a scale, and limiting blocks (3221) are provided at both ends. One end of the limiting block (3221) is correspondingly fitted with the nut of the limiting bolt (321). The module C (43) has a T-shaped outline and is provided with strong magnetic strips on the left and right sides. The module B (42) is provided with an iron bar on one side relative to the module C (43), and a strong magnetic bar on the other side relative to the module A (41). The module B (42) can be magnetically attached to the left and right sides of the module C (43). The module A (41) is a bent part, and iron bars are provided on the left and right sides. The adjustable magnetic module (4) adopts a combination of module A (41) + n×module B (42) + module C (43), where n is a group. The adjustable magnetic module (4) relies on the steel pipe (1) to form a complete circle. The left and right sides of the module A (41) are connected to the module B (42) by magnetic adsorption. The fixing structure (31) includes a fixing bolt (311) and a fixed synchronous ruler (312). The fixing bolt (311) is threadedly connected to the module A (41). One end of the fixing bolt (311) is provided with a cross handle (3111), which facilitates twisting while stably fixing the positioning device (3) on the steel pipe (1), effectively preventing the positioning device (1) from deflecting.

2. The thin-walled concrete-filled steel tube positioning device applicable to multiple sizes according to claim 1 is characterized in that: The fixed synchronization ruler (312) is passed through the module A (41) and is located above the fixing bolt (311).

3. The thin-walled concrete-filled steel tube positioning device applicable to multiple sizes according to claim 2, characterized in that: The surface of the fixed synchronization ruler (312) is provided with scales, and fixed abutments (3121) are provided at both ends.

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