Axial correcting device for pipe jacking construction

Abstract

The utility model discloses an axial correction device for pipe jacking construction, which relates to the technical field of pipe jacking construction and comprises a mounting plate and clamping wheels, one clamping wheel is rotatably connected with the mounting plate, the other clamping wheel is slidably connected onto the mounting plate through a connecting piece, and the other clamping wheel is rotatably connected with the connecting piece. The mounting plate is further provided with a driving piece for driving the connecting piece to slide, and connecting columns are fixed to the rear side, away from the clamping wheel, of the mounting plate and the rear side, away from the clamping wheel, of the connecting piece. A worker only needs to enable the two clamping wheels to clamp the inner side and the outer side of a pipeline so that the laser pen can accurately stay in the middle position of the pipe wall, operation and adjustment do not need to be conducted again, the middle position of the pipe wall can be accurately obtained, position deviation caused by manual judgment is not likely to happen, use is more convenient, and the working efficiency is improved. And accurate position determination is more beneficial to accurate axial installation position calibration of the pipe jacking oil cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction, and particularly relates to an axial alignment device for pipe jacking construction. Background Technique

[0002] Pipe jacking construction is a trenchless construction method, which is a pipeline laying construction technology with little or no excavation. Pipe jacking is mostly used in trenchless construction of water supply and drainage, natural gas, and oil pipelines. In actual pipe jacking construction, when the pipe diameter is large, multiple pipe jacking cylinders need to be set. As shown in the figure, it uses several pipe jacking cylinders and is symmetrically arranged on both the left and right sides. Currently, visual inspection methods are mostly used for the positioning and installation of pipe jacking cylinders, that is, the pipeline or the tool pipe is placed on the guide rail, and then the pipe jacking cylinders are fixed on the mounting frame according to visual inspection. However, the following technical problems exist in this process: When the pipeline or the tool pipe is close to the pipe jacking cylinder, although it is convenient for the guide rod of the pipe jacking cylinder to align with the end face of the pipeline, it is not convenient for the installation of the pipe jacking cylinder on the mounting frame; when the pipeline or the tool pipe is far from the pipe jacking cylinder, although it is convenient for the pipe jacking cylinder to be installed on the mounting frame, due to the long distance, it is difficult for the guide rods of each pipe jacking cylinder to align with the end face of the pipeline or the tool pipe. As a result, when each pipe jacking cylinder jacks the pipeline, the forces on each pipe jacking cylinder and the end face of the pipeline are uneven, and then the pipeline is prone to deviate from the designed axis when jacking in the soil. Therefore, it is urgent to design an axial alignment device for pipe jacking construction to facilitate the correction of the overall axial position of the pipe jacking cylinder during installation so that when jacking the pipeline, the forces on each pipe jacking cylinder and the end face of the pipeline are uniform.

[0003] In order to solve the above problems, a patent document with the publication number of "CN221300334U" discloses an axial alignment device for pipe jacking construction, including a fixing plate. On one side end face of the fixing plate, a first roller and a baffle are oppositely arranged. The first roller is rotatably connected to the fixing plate. One end of a spring is fixedly connected to the inner side end face of the baffle, and the other end of the spring is fixedly connected to a rotating frame. A second roller is rotatably connected to the rotating frame. The axes of the first roller and the second roller are both perpendicular to the end face of the fixing plate; on the other side end face of the fixing plate, a transverse adjustment assembly is arranged along its length direction. A connecting sleeve is perpendicularly arranged on the moving part of the transverse adjustment assembly with respect to the end face of the fixing plate, and a laser pen is embedded in the connecting sleeve. The utility model can calibrate the axial installation position of the pipe jacking cylinder and facilitate the installation of the pipe jacking cylinder.

[0004] In the above-mentioned prior art, after the two rollers clamp the inner and outer sides of the pipeline, it is necessary to manually adjust the position of the laser pen so that the laser pen is located at the middle position of the pipeline wall. This not only has cumbersome operations, but also the positioning of the middle position of the pipe wall is greatly affected by human judgment and is prone to deviation. Therefore, an axial alignment device for pipe jacking construction is needed. Summary of the Utility Model

[0005] The purpose of this application is to provide an axial correction device for pipe jacking construction to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, this application provides the following technical solution: an axial correction device for pipe jacking construction, including a mounting plate and clamping wheels. One of the clamping wheels is rotatably connected to the mounting plate, and the other clamping wheel is slidably connected to the mounting plate through a connecting member, and the other clamping wheel is rotatably connected to the connecting member. A driving member for driving the connecting member to slide is also installed on the mounting plate;

[0007] Connecting columns are fixed to the rear side of the mounting plate away from the clamping wheels and the rear side of the connecting member away from the clamping wheels. Tension springs are connected to the two connecting columns through adjustable members. The mutually approaching ends of the two tension springs are jointly fixed to a mounting seat, and a laser pen is fixed to the side of the mounting seat away from the clamping wheels.

[0008] Preferably, the adjustable member includes a mounting block. One side of the mounting block close to the laser pen is fixed to one end of the tension spring. A number of positioning and adjusting holes for the connecting column to slide through are provided on the mounting block, and the number of positioning and adjusting holes are equally spaced and arrayed along the sliding direction of the connecting member.

[0009] Preferably, a second sliding groove is provided on the side of the mounting plate away from the clamping wheels. A second sliding block is fixed to the side of the mounting seat close to the mounting plate, and the second sliding block is slidably connected in the second sliding groove.

[0010] Preferably, a special-shaped sliding hole running through the mounting plate from front to back is provided in the middle of the mounting plate;

[0011] The connecting member includes a special-shaped sliding block. The special-shaped sliding block is slidably connected in the special-shaped sliding hole. One end of the rotating shaft of the other clamping wheel is rotatably connected to the side of the special-shaped sliding block close to the clamping wheel, and one end of the special-shaped sliding block away from the clamping wheel is fixed to one end of one of the connecting columns.

[0012] Preferably, the driving member includes a driving screw. One end of the driving screw is rotatably connected to the inner wall of the special-shaped sliding hole close to one of the clamping wheels. The other end of the driving screw rotatably penetrates through the side wall of one end of the mounting plate and is fixed with an operating block. The driving screw threadedly penetrates through the middle of the special-shaped sliding block;

[0013] The sliding direction of the special-shaped sliding block is the same as the axial direction of the driving screw.

[0014] Preferably, a first sliding groove is provided at the upper end of the mounting plate;

[0015] Two support plates for supporting the end of the rotating shaft of the clamping wheel away from the mounting plate are installed at the upper end of the mounting plate. One of the support plates is fixed to the upper end of the mounting plate and is rotatably connected to the rotating shaft of one of the clamping wheels away from the mounting plate;

[0016] Another support plate is slidably connected to the first sliding groove through the first slider, and the front end of the other support plate is rotatably connected to the rotating shaft at one end of the other clamping wheel away from the mounting plate.

[0017] Preferably, connecting side plates are integrally formed on both sides of the mounting seat, and one end of the tension spring away from the mounting block is fixed to one side of the connecting side plate.

[0018] In summary, the technical effects and advantages of the present utility model are as follows:

[0019] 1. In the present utility model, through the arrangement of the tension springs, when using the driving member to drive the sliding of the connecting member to adjust the distance between the two clamping wheels, since one of the connecting columns is installed at the rear side of the connecting member, and tension springs are installed on both connecting columns, and the elastic properties of the two tension springs are the same, so that during the adjustment process, the deformations of the two tension springs are the same. Thus, the mounting seat between the two tension springs is always located in the middle position between the two connecting columns, that is, in the middle position between the two clamping wheels. After the two clamping wheels clamp on the inner and outer sides of the pipeline, the middle part between the two clamping wheels is the middle position of the pipeline wall. The staff only needs to make the two clamping wheels clamp on the inner and outer sides of the pipeline, and then the laser pen can accurately stay at the middle position of the pipe wall, that is, no further operation adjustment is required, and the middle position of the pipe wall can be accurately obtained, and it is not easily affected by human judgment to cause position deviation, which is more convenient to use, and the accurate position determination is also more conducive to accurately calibrating the axial installation position of the pipe jacking oil cylinder.

[0020] 2. In the present utility model, by adjusting the position of the mounting block, different positioning adjustment holes on the mounting block are matched with the connecting columns, so that the tensile force of the tension springs can be adjusted, thereby being able to adjust the pulling force of the two tension springs on the mounting seat, that is, adjust the sensitivity of the two tension springs to pull the mounting seat, so as to cooperate with the two clamping wheels at different distances. When the distance between the two clamping wheels is large, the telescopic distance of the tension springs is large. At this time, the sensitivity requirement for pulling the mounting seat is low. When the distance between the two clamping wheels is small, the telescopic distance of the tension springs is small. At this time, the sensitivity requirement for pulling the mounting seat is high, so as to be applicable to pulling the mounting seat in different states, more accurately determine the position of the laser pen, and facilitate accurately calibrating the axial installation position of the pipe jacking oil cylinder. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1Schematic diagram of the three-dimensional structure in this embodiment;

[0023] Figure 2 Partial structure schematic diagram in this embodiment;

[0024] Figure 3 Schematic diagram of the connection of the tension spring, mounting seat and mounting block in this embodiment.

[0025] In the figure: 1. mounting plate; 11. first chute; 12. support plate; 121. first slider; 13. special-shaped sliding hole; 14. second chute; 2. pinch wheel; 3. special-shaped slider; 4. mounting seat; 41. connecting side plate; 42. second slider; 5. laser pointer; 6. tension spring; 7. mounting block; 71. positioning and adjusting hole; 8. connecting column; 9. driving screw; 91. operating block. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment: Refer to Figures 1-3 A pipe jacking construction axial correction device as shown, including a mounting plate 1 and a pinch wheel 2. One of the pinch wheels 2 is rotatably connected to the mounting plate 1, and the other pinch wheel 2 is slidably connected to the mounting plate 1 through a connecting member, and the other pinch wheel 2 is rotatably connected to the connecting member. A driving member for driving the connecting member to slide is also installed on the mounting plate 1;

[0028] Connecting columns 8 are fixed to the rear side of the mounting plate 1 away from the pinch wheel 2 and the rear side of the connecting member away from the pinch wheel 2. Tension springs 6 are connected to the two connecting columns 8 through adjustable members. The mutually approaching ends of the two tension springs 6 are jointly fixed to a mounting seat 4, and a laser pointer 5 is fixed to the side of the mounting seat 4 away from the pinch wheel 2.

[0029] Based on the above structure, when using the driving member to drive the connecting member to slide to adjust the distance between the two clamping wheels 2, since one of the connecting columns 8 is installed at the rear side of the connecting member, and the tension springs 6 are installed on both of the two connecting columns 8, and the elastic properties of the two tension springs 6 are the same, during the adjustment process, the deformations of the two tension springs 6 are the same, so that the mounting seat 4 between the two tension springs 6 is always located at the middle position between the two connecting columns 8, that is, at the middle position between the two clamping wheels 2. After the two clamping wheels 2 are clamped on the inner and outer sides of the pipeline, the middle part between the two clamping wheels 2 is the middle position of the pipeline wall. The staff only needs to make the two clamping wheels 2 clamp on the inner and outer sides of the pipeline, then the laser pen 5 can accurately stay at the middle position of the pipe wall, that is, no further operation adjustment is required, and the middle position of the pipe wall can be accurately obtained, and it is not easily affected by human judgment to cause position deviation, which is more convenient to use. The accurate position determination is also more conducive to accurately calibrating the axial installation position of the pipe jacking cylinder.

[0030] Furthermore, the adjustable member includes a mounting block 7. One side of the mounting block 7 close to the laser pen 5 is fixed to one end of the tension spring 6. A plurality of positioning and adjusting holes 71 for the connecting column 8 to slide through are formed in the mounting block 7, and the plurality of positioning and adjusting holes 71 are equidistantly arranged in an array along the sliding direction of the connecting member.

[0031] By adjusting the position of the mounting block 7 so that different positioning and adjusting holes 71 on the mounting block 7 cooperate with the connecting column 8, the tension of the tension spring 6 can be adjusted, thereby the pulling force of the two tension springs 6 on the mounting seat 4 can be adjusted, that is, the sensitivity of the two tension springs 6 to pull the mounting seat 4 can be adjusted, so as to cooperate with the two clamping wheels 2 at different distances. When the distance between the two clamping wheels 2 is large, the telescopic distance of the tension spring 6 is large. At this time, the sensitivity requirement for pulling the mounting seat 4 is low. When the distance between the two clamping wheels 2 is small, the telescopic distance of the tension spring 6 is small. At this time, the sensitivity requirement for pulling the mounting seat 4 is high, so as to be applicable to pulling the mounting seat 4 in different states, more accurately determine the position of the laser pen 5, and facilitate accurately calibrating the axial installation position of the pipe jacking cylinder.

[0032] Furthermore, connecting side plates 41 are integrally formed on both sides of the mounting seat 4. One end of the tension spring 6 far from the mounting block 7 is fixed to one side of the connecting side plate 41. A second sliding groove 14 is formed on the side of the mounting plate 1 far from the clamping wheel 2. A second sliding block 42 is fixed on the side of the mounting seat 4 close to the mounting plate 1. The second sliding block 42 is slidably connected in the second sliding groove 14. By using the second sliding block 42 and the second sliding groove 14, the mounting seat 4 can be made more stable during the movement process, and the mounting seat 4 can be prevented from having an angular offset under the pulling of the two tension springs 6, so as to ensure the accurate laser angle emitted by the laser pen 5.

[0033] Further, a special-shaped sliding hole 13 that penetrates the mounting plate 1 from front to back is formed in the middle of the mounting plate 1;

[0034] The connecting member includes a special-shaped sliding block 3. The special-shaped sliding block 3 is slidably connected in the special-shaped sliding hole 13. One end of the rotating shaft of the other pinch wheel 2 is rotatably connected to one side of the special-shaped sliding block 3 close to the pinch wheel 2. One end of the special-shaped sliding block 3 far from the pinch wheel 2 is fixed to one end of one of the connecting columns 8;

[0035] The driving member includes a driving screw 9. One end of the driving screw 9 is rotatably connected to the inner wall of the special-shaped sliding hole 13 close to one of the pinch wheels 2. The other end of the driving screw 9 rotatably penetrates through the side wall of one end of the mounting plate 1 and is fixed with an operating block 91. The driving screw 9 threadedly penetrates through the middle of the special-shaped sliding block 3;

[0036] The sliding direction of the special-shaped sliding block 3 is the same as the axial direction of the driving screw 9.

[0037] Through the settings of the special-shaped sliding block 3 and the driving screw 9, when it is necessary to change the distance between the two pinch wheels 2, only need to rotate the driving screw 9, so that the driving screw 9 drives the special-shaped sliding block 3 to slide in the special-shaped sliding hole 13, then the other pinch wheel 2 can slide closer to or away from one of the pinch wheels 2, thereby changing the distance between the two pinch wheels 2, enabling the two pinch wheels 2 to clamp on the inner and outer sides of the pipe wall. At the same time, the special-shaped sliding block 3 can also drive one of the connecting columns 8 to move synchronously, so that the two tension springs 6 stretch or contract synchronously by their own elastic force, so that the mounting seat 4 and the laser pen 5 stay in the middle position of the pipe wall.

[0038] Further, a first sliding groove 11 is formed at the upper end of the mounting plate 1;

[0039] Two support plates 12 for supporting the end of the rotating shaft of the pinch wheel 2 far from the mounting plate 1 are installed at the upper end of the mounting plate 1. One of the support plates 12 is fixed to the upper end of the mounting plate 1 and is rotatably connected to the rotating shaft of one of the pinch wheels 2 far from the mounting plate 1;

[0040] The other support plate 12 is slidably connected to the first sliding groove 11 through a first slider 121, and the front end of the other support plate 12 is rotatably connected to the rotating shaft of the other pinch wheel 2 far from the mounting plate 1. By the setting of the support plate 12, the end of the rotating shaft of the pinch wheel 2 can be stably supported. At the same time, the settings of the first sliding groove 11 and the first slider 121 can meet the sliding requirements of the other pinch wheel 2, ensuring the smooth movement of the pinch wheel 2 while improving its stability.

[0041] Working principle of the utility model: During daily use, the staff only need to rotate the operation block 91 to make the driving screw 9 rotate. The driving screw 9 drives the special-shaped slider 3 to slide in the special-shaped sliding hole 13, so that the other clamping wheel 2 can slide closer to or away from one of the clamping wheels 2, thereby changing the distance between the two clamping wheels 2, enabling the two clamping wheels 2 to clamp on the inner and outer sides of the pipe wall. Since one of the connecting columns 8 is installed at the rear side of the connecting piece, the special-shaped slider 3 can also drive one of the connecting columns 8 to move synchronously. Moreover, tension springs 6 are installed on both of the two connecting columns 8, and the elastic properties of the two tension springs 6 are the same. During the adjustment process, the deformations of the two tension springs 6 are the same, so that the mounting seat 4 between the two tension springs 6 is always located at the middle position between the two connecting columns 8, that is, at the middle position between the two clamping wheels 2. After the two clamping wheels 2 clamp on the inner and outer sides of the pipe, the middle position between the two clamping wheels 2 is the middle position of the pipe wall. After the staff make the two clamping wheels 2 clamp on the inner and outer sides of the pipe, the laser pen 5 can accurately stay at the middle position of the pipe wall, that is, no further operation adjustment is required, and the middle position of the pipe wall can be accurately obtained. It is not easily affected by human judgment to cause position deviation, and is more convenient to use. The accurate position determination is also more conducive to accurately calibrating the axial installation position of the pipe jacking oil cylinder.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An axial correction device for pipe jacking construction, comprising a mounting plate (1) and a clamping wheel (2), wherein one of the clamping wheels (2) is rotatably connected to the mounting plate (1), the other clamping wheel (2) is slidably connected to the mounting plate (1) through a connecting member, and the other clamping wheel (2) is rotatably connected to the connecting member, and a driving member for driving the connecting member to slide is also installed on the mounting plate (1), characterized in that: A connecting column (8) is fixed to the rear side of the mounting plate (1) away from the clamping wheel (2) and the rear side of the connecting member away from the clamping wheel (2); tension springs (6) are connected to the two connecting columns (8) via adjustable members; a mounting seat (4) is fixed to the ends of the two tension springs (6) close to each other; a laser pen (5) is fixed to the side of the mounting seat (4) away from the clamping wheel (2).

2. The axial correction device for pipe jacking construction according to claim 1, characterized in that: The adjustable member comprises a mounting block (7), a side of the mounting block (7) close to the laser pen (5) being fixed to one end of a tension spring (6), the mounting block (7) being provided with a plurality of positioning adjustment holes (71) for the connection column (8) to slide through, the plurality of positioning adjustment holes (71) being distributed in an array in an equidistant manner along the sliding direction of the connection member.

3. The axial correction device for pipe jacking construction according to claim 2, characterized in that: A second slide groove (14) is provided on a side of the mounting plate (1) away from the clamping wheel (2), and a second slider (42) is fixed on a side of the mounting seat (4) close to the mounting plate (1), and the second slider (42) is slidably connected in the second slide groove (14).

4. The axial correction device for pipe jacking construction according to claim 1, characterized in that: A special-shaped sliding hole (13) is provided in the middle of the mounting plate (1) and passes through the mounting plate (1) from front to back; The connecting member comprises a special-shaped slider (3), the special-shaped slider (3) is slidably connected in the special-shaped sliding hole (13), one end of the rotating shaft of the other clamping wheel (2) is rotationally connected to the side of the special-shaped slider (3) close to the clamping wheel (2), and the end of the special-shaped slider (3) away from the clamping wheel (2) is fixed to one end of one of the connecting columns (8).

5. The axial correction device for pipe jacking construction according to claim 4 is characterized in that: The driving member comprises a driving screw (9), one end of which is rotatably connected to an inner wall of a side of a special-shaped sliding hole (13) close to one of the clamping wheels (2), and the other end of which is rotatably penetrates a side wall of one end of the mounting plate (1) and is fixed with an operating block (91), and the thread of the driving screw (9) penetrates the middle of the special-shaped sliding block (3); The sliding direction of the special-shaped sliding block (3) is the same as the axial direction of the driving screw rod (9).

6. The axial correction device for pipe jacking construction according to claim 1, characterized in that: The upper end of the mounting plate (1) is provided with a first sliding groove (11); Two support plates (12) are mounted on the upper end of the mounting plate (1) for supporting the end of the rotating shaft of the clamping wheel (2) away from the mounting plate (1), one of the support plates (12) is fixed to the upper end of the mounting plate (1) and is rotatably connected to the rotating shaft of one of the clamping wheels (2) away from the mounting plate (1); The other support plate (12) is slidably connected to the first slide groove (11) via a first slider (121), and the front end of the other support plate (12) is rotationally connected to the rotating shaft of the other clamping wheel (2) at one end away from the mounting plate (1).

7. The axial correction device for pipe jacking construction according to claim 3 is characterized in that: Both sides of the mounting seat (4) are integrally formed with connecting side plates (41), and one end of the tension spring (6) away from the mounting block (7) is fixed to one side of the connecting side plate (41).

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