Construction device for penetrating steel pipe into concrete pipe

Abstract

The construction device for penetrating the steel pipe into the concrete pipe comprises a supporting assembly, the supporting assembly comprises an arc-shaped bracket and a plurality of supporting rollers, the supporting rollers are rotationally arranged on the inner side of the arc-shaped bracket, and the rotating planes where the supporting rollers are located jointly intersect at the center point of the arc-shaped bracket; the shape of the outer arc wall of the arc-shaped bracket corresponds to the shape of the inner arc wall of the concrete pipe, the multiple sets of supporting assemblies are arranged on the inner ring wall of the concrete pipe at intervals in the length direction of the concrete pipe, the supporting assemblies are arranged on the inner bottom wall of the concrete pipe, and the arc-shaped bracket is connected with the inner arc wall of the concrete pipe. The concrete pipe penetrating device has the effect that the steel pipe penetrating work in the concrete pipe is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground pipeline construction, and in particular to a construction device for a concrete pipe with a steel pipe. BACKGROUND

[0002] As an important part of the city "lifeline", the construction quality and efficiency of underground pipelines directly affect the normal operation of city functions and the safety of residents' lives. In the fields of municipal water supply and drainage, power communication, comprehensive pipe gallery and other engineering fields, the combined structure of concrete pipes and steel pipes is widely used in pipeline laying under complex geological conditions and high load environment due to its durability of concrete and pressure resistance and impermeability of steel pipes.

[0003] At present, the concrete pipe with a steel pipe structure includes a concrete pipe and a steel pipe coaxially arranged inside the concrete pipe. The steel pipe is made by welding the first and last steel pipe units, and the surface of the steel pipe and the welding part of the steel pipe unit are both subjected to corrosion protection. The installation process of the concrete pipe with a steel pipe often faces problems such as limited operation space, difficult precision control, and low work efficiency. In traditional construction, a crane is used to lift one end of the steel pipe, and the other end is pulled into the concrete pipe using a guide chain.

[0004] According to the related technology in the above, the inventors believe that the steel pipe installation process in the operation process is only suitable for short-distance engineering, and the construction safety risk is large. In addition, in the pulling process, the steel pipe directly contacts and rubs against the inner wall of the concrete pipe, which can also damage the corrosion layer of the steel pipe. CONTENT OF THE UTILITY MODEL

[0005] In order to facilitate the work of the concrete pipe with a steel pipe, the present application provides a construction device for a concrete pipe with a steel pipe.

[0006] The construction device for a concrete pipe with a steel pipe provided by the present application adopts the following technical scheme:

[0007] A construction device for a concrete pipe with a steel pipe, comprising a support assembly, the support assembly comprising an arc-shaped bracket and a plurality of support rollers, the support rollers being rotatably arranged on the inner side of the arc-shaped bracket, the rotation planes of the plurality of support rollers intersecting at the center point of the arc-shaped bracket, the outer arc wall shape of the arc-shaped bracket corresponding to the inner arc wall shape of the concrete pipe, the support assembly being arranged on the inner bottom wall of the concrete pipe, and the arc-shaped bracket being connected to the inner arc wall of the concrete pipe.

[0008] By adopting the technical scheme, the support assembly is installed at the bottom of the inner ring wall of the concrete pipe, and when the steel pipe is placed, the steel pipe is pushed into the concrete pipe from one end of the concrete pipe, the steel pipe is in contact with the support rollers, the support assembly supports the steel pipe, and the steel pipe can be located at the middle position in the concrete pipe. The support rollers are arranged to avoid direct contact between the concrete pipe and the steel pipe, thereby reducing the possibility of damage to the corrosion-resistant layer on the surface of the steel pipe. Through the cooperation of the support assembly, the support and guidance of the steel pipe during placement are realized, and the work of inserting the steel pipe into the concrete pipe is facilitated.

[0009] Optionally, the arc-shaped bracket comprises two parallel support arc rods and a connecting rod connected between the two support arc rods, the support arc rods are hollow, a plurality of pairs of mounting plates are slidably arranged on each support arc rod, one support roller is rotatably arranged on each pair of mounting plates, the plurality of pairs of mounting plates on the two support arc rods are arranged in one-to-one correspondence, and the arc-shaped bracket is provided with an adjusting member for adjusting the positions of the mounting plates.

[0010] By adopting the technical scheme, for steel pipes of different diameters, the relative positions between the mounting plates and the support arc rods can be adjusted by the adjusting member, the positions of the support rollers are adjusted, and steel pipes of different diameters can be coaxially arranged with the concrete pipe during placement.

[0011] Optionally, the mounting plate is provided with an adjusting scale along the length direction thereof.

[0012] By adopting the technical scheme, the adjusting scale is arranged to facilitate the operator to accurately adjust the adjusting position of the support roller, so that each support roller can be in contact with the outer surface of the steel pipe.

[0013] Optionally, the centering assembly comprises a centering arc rod, a centering arc plate and a centering roller, a plurality of sets of the centering assembly are arranged on the two opposite sides of the inner wall of the concrete pipe in the horizontal direction, the centering arc rod is connected with the inner ring wall of the concrete pipe, the centering arc plate is arranged on the inner side of the centering arc rod, and the centering roller is rotatably arranged on the inner side of the centering arc plate.

[0014] By adopting the technical scheme, the centering rollers arranged on the two opposite centering arc plates support and limit the steel pipe, thereby reducing the possibility of deflection of the steel pipe in the inner cavity of the concrete pipe during pushing and placing.

[0015] Optionally, the centering assembly further comprises a mounting block, a guide rod and a centering screw, the centering arc rod is hollow, the mounting block is provided with two mounting ears on the outer arc wall of the centering arc plate, one of the mounting blocks is rotationally connected with the centering screw, the other mounting block is connected with the guide rod, one end of the guide rod extends into the centering arc rod and is slidably connected with the centering arc rod, and the centering screw is threadedly connected with the centering arc rod.

[0016] By adopting the above technical scheme, for steel pipes of different diameters, the centering screw is screwed, and the centering arc plate moves along the length direction of the guide rod under the driving action of the centering screw, so that the position of the centering arc plate is adjusted, and the centering assembly can limit and guide steel pipes of different diameters.

[0017] Optionally, adjacent arc-shaped brackets are connected with a series rod along the length direction of the concrete pipe, the arc-shaped bracket is provided with a mounting ear plate, and the mounting ear plate is connected with the inner ring wall of the concrete pipe through a connecting piece.

[0018] By adopting the above technical scheme, the series rod connects adjacent arc-shaped brackets together, and when the supporting assembly inside the concrete pipe is installed, a plurality of groups of supporting assemblies can be quickly placed on the same straight line, which helps to speed up the installation efficiency of the supporting assembly in the concrete pipe by the operator.

[0019] Optionally, a plurality of groups of supporting assemblies are arranged on the outside of one end of the concrete pipe along the length direction of the concrete pipe, the bottom end of the supporting assembly outside the concrete pipe is provided with a supporting base, and the supporting assembly outside the concrete pipe and the supporting assembly inside the concrete pipe are located on the same straight line.

[0020] By adopting the above technical scheme, the supporting assembly arranged outside the concrete pipe supports and guides the pipe section of the steel pipe outside the concrete pipe, and the possibility of bending and deforming of the steel pipe before being pushed into the concrete pipe is reduced.

[0021] Optionally, the supporting base comprises a supporting bottom plate, a rotating sleeve rod and a lifting screw rod, the rotating sleeve rod is vertically rotationally arranged on the top surface of the supporting bottom plate, and the lifting screw rod is arranged at the bottom end of the arc-shaped bracket and is threadedly connected with the rotating sleeve rod.

[0022] By adopting the above technical scheme, for different ground heights, the height of the supporting assembly outside the concrete pipe needs to be adjusted so as to be located on the same straight line with the supporting assembly inside the concrete pipe. The rotating sleeve rod is screwed, and the lifting screw rod moves in the vertical direction, so that the height of the supporting assembly is adjusted, and the application range of the device is expanded.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By the cooperation of the support assembly, the support and guidance of the steel pipe during placement are achieved, which facilitates the work of placing the steel pipe in the concrete pipe;

[0025] 2. The arrangement of the centering assembly reduces the possibility of the steel pipe being deflected in the inner cavity of the concrete pipe during pushing;

[0026] 3. The support assembly arranged outside the concrete pipe supports and guides the pipe segment of the steel pipe outside the concrete pipe, reducing the possibility of the steel pipe being bent and deformed before being pushed into the concrete pipe. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of a construction device for placing a steel pipe in a concrete pipe according to an embodiment of the present application.

[0028] Figure 2 is a structural schematic diagram of the internal structure of a concrete pipe according to an embodiment of the present application.

[0029] Figure 3 is a partial sectional view of a support assembly according to an embodiment of the present application.

[0030] Figure 4 is Figure 1 an enlarged view of part A in FIG. 4.

[0031] BRIEF DESCRIPTION OF DRAWINGS: 1, concrete pipe; 2, steel pipe; 3, support assembly; 31, arc bracket; 311, support arc rod; 312, connecting rod; 32, mounting ear plate; 33, mounting plate; 34, support roller; 35, linkage plate; 36, adjusting screw; 37, limiting block; 4, centering assembly; 41, centering arc rod; 42, centering arc plate; 43, centering roller; 44, mounting block; 45, guide rod; 46, centering screw; 5, adjusting scale line; 6, series rod; 7, support base; 71, support base plate; 72, rotating sleeve rod; 73, lifting screw. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail. The present application provides a construction device for placing a steel pipe in a concrete pipe, which facilitates the work of placing the steel pipe in the concrete pipe.

[0033] Referring to Figure 1 and Figure 2 , a construction device for placing a steel pipe in a concrete pipe includes a support assembly 3 and a centering assembly 4. The support assembly 3 is arranged in the interior of the concrete pipe 1 and on the outside of one end of the concrete pipe 1.

[0034] With reference to Figures 1-3 , the support assembly 3 comprises an arc-shaped bracket 31, a mounting lug plate 32, a mounting plate 33, a support roller 34, a linkage plate 35, an adjusting screw 36 and a limiting block 37. The arc-shaped bracket 31 comprises support arc rods 311 and connecting rods 312, the support arc rods 311 are arranged in parallel and two in number, the outer arc wall of the support arc rods 311 is arranged in correspondence with the shape of the inner ring wall of the concrete pipe 1. The connecting rods 312 are connected in parallel between the two support arc rods 311, the mounting plate 33 is arranged in pairs on the inner arc wall of each support arc rod 311, and the mounting plates 33 on the two support arc rods 311 are arranged in correspondence with the connecting rods 312. The support roller 34 is rotatably arranged between each pair of mounting plates 33, the support arc rods 311 are hollow, one end of the mounting plate 33 is slidably connected with the arc-shaped bracket 31, and the adjusting scale line 5 is arranged on the mounting plate 33 along the length direction thereof.

[0035] With reference to Figure 3 , the linkage plate 35 is connected between each pair of mounting plates 33, one end of the adjusting screw 36 penetrates through the linkage plate 35 and is rotatably connected therewith, and the limiting block 37 is arranged in two on the adjusting screw 36, and the linkage plate 35 is clamped between the two limiting blocks 37. One end of the adjusting screw 36 is threadedly connected with the connecting rod 312. The mounting lug plate 32 is arranged in plurality on the arc-shaped bracket 31, and the mounting lug plate 32 is connected with the inner ring wall of the concrete pipe 1 by bolts. The support assembly 3 is arranged in plurality at equal intervals along the length direction of the bottom of the inner ring wall of the concrete pipe 1. The series connection rods 6 are connected between the plurality of adjacent arc-shaped brackets 31, and the series connection rods 6 are arranged along the length direction of the concrete pipe 1.

[0036] With reference to Figure 2 , the centering assembly 4 is arranged in the concrete pipe 1, and the centering assembly 4 comprises centering arc rods 41, centering arc plates 42, centering rollers 43, mounting blocks 44, guide rods 45 and centering screws 46. The centering arc rods 41 are arranged in plurality on the opposite sides of the concrete pipe 1 in the horizontal direction, the centering arc rods 41 are connected with the inner wall of the concrete by connecting pieces, and the centering arc rods 41 are hollow. The centering arc plates 42 are arranged on the inner side of the centering arc rods 41, and the centering rollers 43 are rotatably arranged in plurality on the inner side of the centering arc plates 42. The mounting blocks 44 are arranged in two on the outer arc wall of the centering arc plates 42, one of the mounting blocks 44 is rotatably connected with the centering screw 46, the other mounting block 44 is connected with one end of the guide rod 45, and the guide rod 45 is arranged in parallel with respect to the centering screw 46. One end of the centering screw 46 is threadedly connected with the centering arc rod 41, and one end of the guide rod 45 extends into the centering arc rod 41 and is slidably connected therewith.

[0037] With reference to Figure 1 and Figure 4The support assembly 3 is arranged outside one end of the concrete pipe 1 along the length direction of the concrete pipe 1, and the support assembly 3 inside the concrete pipe 1 is arranged on the same straight line as the support assembly 3 outside the concrete pipe 1. The support assembly 3 outside the concrete pipe 1 is connected with a support base 7 below, and the support base 7 comprises a support bottom plate 71, rotating sleeve rods 72 and lifting screws 73. The rotating sleeve rods 72 are rotatably connected to the top surface of the support bottom plate 71, and the lifting screws 73 are vertically connected to the bottom surface of the arc-shaped bracket 31. The lifting screws 73 are arranged in one-to-one correspondence with the rotating sleeve rods 72, and the lifting screws 73 are threadedly connected in the corresponding rotating sleeve rods 72.

[0038] With reference to Figure 2 Before the steel pipe 2 is placed, the support assembly 3 and the centering assembly 4 are connected in the inner cavity of the concrete pipe 1. The arrangement of the connecting rod 6 makes the support assemblies 3 in the concrete pipe 1 arranged on the same straight line, so that the positioning of the support assemblies 3 is avoided during installation, and the installation efficiency of the support assemblies 3 is improved. The support base 7 is arranged outside one end of the concrete pipe 1, and the connecting direction of the support bases 7 is collinear with the length direction of the concrete pipe 1.

[0039] With reference to Figure 2 and Figure 3 For the steel pipes 2 of different diameters, the adjusting screw 36 is screwed, the linkage plate 35 drives the corresponding mounting plate 33 to slide, the position of the supporting roller 34 is adjusted, and the steel pipe 2 can be located in the middle position of the concrete pipe 1 during the supporting process. The centering screw 46 is screwed, and the centering arc plate 42 is adjusted to the appropriate position under the driving of the centering screw 46. The arrangement of the two rows of centering assemblies 4 realizes the limiting and guiding of the two sides of the steel pipe 2 in the horizontal direction, and reduces the possibility of the steel pipe 2 being skewed in the concrete pipe 1 during the pushing process.

[0040] With reference to Figure 1 and Figure 2 During the pushing of the steel pipe 2, the support assembly 3 outside the concrete pipe 1 supports the steel pipe 2 to avoid deformation, the support assembly 3 inside the concrete pipe 1 and the centering assembly 4 limit and guide the steel pipe 2, so that the steel pipe 2 can be coaxially arranged with the concrete pipe 1, and the arrangement of the supporting roller 34 reduces the friction between the steel pipe 2 and the concrete pipe 1, and reduces the possibility of damage to the surface corrosion layer of the steel pipe 2.

[0041] The implementation principle of the construction device for the steel pipe inside the concrete pipe in the embodiment of the application is that before the steel pipe 2 is placed, the support assembly 3 and the centering assembly 4 are connected in the inner cavity of the concrete pipe 1. The support base 7 is arranged outside one end of the concrete pipe 1, and the connecting direction of the support bases 7 is collinear with the length direction of the concrete pipe 1.

[0042] The position of the supporting roller 34 is adjusted according to the diameter of the steel pipe 2. The two rows of centering assemblies 4 reduce the possibility of the steel pipe 2 being skewed in the concrete pipe 1 during pushing. When the steel pipe 2 is pushed, the supporting assembly 3 outside the concrete pipe 1 supports the steel pipe 2 to avoid deformation, and the supporting assembly 3 inside the concrete pipe 1 and the centering assembly 4 limit and guide the steel pipe 2, so that the steel pipe 2 can be coaxially arranged with the concrete pipe 1.

[0043] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A construction device for a concrete pipe with a steel pipe inside, characterized by: The support assembly (3) comprises an arc-shaped bracket (31) and support rollers (34) rotatably arranged on the inner side of the arc-shaped bracket (31), the rotation planes of the support rollers (34) intersect at the center point of the arc-shaped bracket (31), the outer arc wall of the arc-shaped bracket (31) is correspondingly arranged with the inner arc wall of the concrete pipe (1), the support assembly (3) is arranged on the inner bottom wall of the concrete pipe (1), and the arc-shaped bracket (31) is connected with the inner arc wall of the concrete pipe (1).

2. A construction device for a steel pipe inside a concrete pipe according to claim 1, characterized in that: The arc-shaped bracket (31) comprises two parallel support arc rods (311) and a connecting rod (312) connected between the two support arc rods (311), the support arc rods (311) are hollow, each support arc rod (311) is slidably provided with a plurality of pairs of mounting plates (33), each pair of mounting plates (33) is rotatably provided with one support roller (34), the pairs of mounting plates (33) on the two support arc rods (311) are arranged one by one in a corresponding manner, and the arc-shaped bracket (31) is provided with an adjusting member for adjusting the position of the mounting plate (33).

3. A construction device for a steel pipe inside a concrete pipe according to claim 2, characterized in that: The mounting plate (33) is provided with an adjusting scale (5) along the length direction thereof.

4. A construction device for a steel pipe inside a concrete pipe according to claim 1, characterized in that: The centering assembly (4) comprises a centering arc rod (41), a centering arc plate (42) and a centering roller (43), and a plurality of sets of the centering assembly (4) are arranged on the opposite sides of the inner wall of the concrete pipe (1) in the horizontal direction, the centering arc rod (41) is connected with the inner wall of the concrete pipe (1), the centering arc plate (42) is arranged on the inner side of the centering arc rod (41), and the centering roller (43) is rotatably arranged on the inner side of the centering arc plate (42).

5. A construction device for a steel pipe inside a concrete pipe according to claim 4, characterized in that: The centering assembly (4) further comprises a mounting block (44), a guide rod (45) and a centering screw (46), the centering arc rod (41) is hollow, the mounting block (44) is arranged on the outer arc wall of the centering arc plate (42), one of the mounting blocks (44) is rotatably connected with the centering screw (46), the other mounting block (44) is connected with the guide rod (45), one end of the guide rod (45) extends into the centering arc rod (41) and is slidably connected with the centering arc rod (41), and the centering screw (46) is threadedly connected with the centering arc rod (41).

6. A construction device for a steel pipe inside a concrete pipe according to claim 1, characterized in that: The adjacent arc-shaped brackets (31) are connected with a series rod (6) along the length direction of the concrete pipe (1), the arc-shaped bracket (31) is provided with a mounting lug plate (32), and the mounting lug plate (32) is connected with the inner wall of the concrete pipe (1) through a connecting piece.

7. A construction device for a steel pipe inside a concrete pipe according to claim 1, characterized in that: The support assembly (3) is arranged outside one end of the concrete pipe (1) along the length direction of the concrete pipe (1), the bottom end of the support assembly (3) outside the concrete pipe (1) is provided with a support base (7), and the support assembly (3) outside the concrete pipe (1) and the support assembly (3) inside the concrete pipe (1) are located on the same straight line.

8. A construction device for a steel pipe inside a concrete pipe according to claim 7, characterized in that: The support base (7) comprises a support bottom plate (71), a rotating sleeve rod (72) and a lifting screw rod (73), the rotating sleeve rod (72) is vertically arranged on the top surface of the support bottom plate (71), and the lifting screw rod (73) is arranged at the bottom end of the arc-shaped bracket (31) and is in threaded connection with the rotating sleeve rod (72).

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