Pipe jacking deviation rectifying device

Abstract

The utility model relates to the technical field of pipe jacking deviation rectification, and discloses a pipe jacking deviation rectification device which comprises a bearing plate fixedly installed in a foundation pit, hard protective layers are arranged on the side walls in the foundation pit, the bearing plate is fixedly installed on the side faces of the hard protective layers, and the upper surface of the bearing plate is fixedly connected with two symmetrical containing tables. A pipe jacking body is placed at the upper ends of the two placing tables, and the upper surface of the bearing plate is slidably connected with symmetrical moving rings which are accurately positioned. The movable rings are arranged, the arc-shaped positioning plates are arranged in the two movable rings, and when a to-be-jacked-in jacking pipe body and a jacked-in jacking pipe body need to be centered and rectified, the positions of the two movable rings are adjusted through the second driving unit; and the first driving unit is started to drive the multiple arc-shaped positioning plates to move in the opposite directions to conduct centering and deviation rectifying on the to-be-jacked-in jacking pipe body, the rapid centering and deviation rectifying effect on the to-be-jacked-in jacking pipe body is achieved, and then the construction efficiency of the jacking pipe body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking correction, in particular to a pipe jacking correction device. Background Art

[0002] Pipe jacking is a commonly used process in urban road drainage projects. Generally speaking, drainage projects, as an important part of urban road projects, directly determine the quality of the projects. The construction quality of the pipe jacking process directly determines the quality of the drainage project. How to quickly, simply and effectively control the longitudinal and lateral deviation of the pipe jacking is the research focus.

[0003] In order to facilitate the correction of the jacking pipe, the prior art has made many improvements to the jacking pipe correction device. For example, the patent publication number CN217634225U discloses a jacking pipe correction device to solve the problem that the existing jacking pipe correction device is prone to sinking when used when installed on the soil and lacks a structure to assist in floating. The device comprises a main body; the main body is a rectangular plate structure, a slide plate is installed between the plug rods, and a bottom piece is slidably installed between the slide plates. The bottom piece is a rectangular structure, the bottom piece is made of a hard plastic material, and the bottom piece is provided with an arc groove, and the corners of the arc groove are respectively provided with a circular hole. The bottom piece is installed at the bottom of the main body for use, the bottom piece is made of a hard plastic material, and the bottom piece is provided with an arc groove. After the device is installed on the soil, the bottom piece can assist in floating on the soil, and the interior of the bottom piece can store air, thereby improving the floating force effect, so that the device can be firmly supported, so that when the device is installed on the soil, it will not cause significant sinking.

[0004] The above patents have obvious beneficial effects, but still have the following deficiencies in actual operation:

[0005] In the above-mentioned comparative documents, the jacking pipe is placed between two outer plates to correct the deviation of the jacking pipe. In actual operation, the installation method of the drainage jacking pipe is trenchless construction, which is achieved by excavating a foundation pit on the ground. The jacking force generated by the jacking equipment in the foundation pit is used to overcome the friction between the jacking pipe and the surrounding soil, and several jacking pipes are pushed into the ground in turn. Therefore, it is necessary to correct the deviation and center the front and rear jacking pipes in the foundation pit to ensure the centering of each section of the jacking pipe, thereby preventing the deviation of the jacking pipe that has been pushed into the ground in front. Therefore, there is an urgent need in this field to improve the jacking pipe correction device to solve the defects of the existing technology. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a pipe jacking correction device, which has a rapid centering and correction effect on the pipe jacking body to be jacked, thereby improving the construction efficiency of the pipe jacking body.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a jacking pipe correction device, comprising a supporting plate fixedly installed in a foundation pit, the inner side walls of the foundation pit are provided with a hard protective layer, the supporting plate is fixedly installed on the side of the hard protective layer, two symmetrical placing platforms are fixedly connected to the upper surface of the supporting plate, the upper ends of the two placing platforms are provided with a jacking pipe body, the upper surface of the supporting plate is slidably connected with a symmetrical and accurately positioned moving ring, a number of sliding plates in an equidistant circular array are slidably connected in the two moving rings, the facing ends of each sliding plate are fixedly connected with an arc-shaped positioning plate adapted to the side of the jacking pipe body, each of the moving rings is provided with a first driving unit that can simultaneously drive the sliding plates to move toward or away from each other, a positioning unit for positioning the two moving rings is provided on the supporting plate, and a second driving unit for driving the two moving rings to move toward or away from each other at the same time is provided on the supporting plate.

[0008] Preferably, the first driving unit includes a rotating ring rotatably connected in each of the moving rings, a plurality of first gears rotatably connected in the moving ring that engage with the rotating ring and the sliding plate, a first driving motor fixedly mounted on one side of the moving ring, a second gear rotatably connected in the moving ring that engages with the rotating ring, and an output end of the first driving motor is fixedly mounted on the second gear.

[0009] Preferably, the positioning unit comprises a fixed ring fixedly mounted on the upper surface of the end of the carrier plate away from the hard protective layer, the fixed ring being penetrated by a plurality of positioning anchor rods, one end of each positioning anchor rod passing through two movable rings and extending into the hard protective layer for fixation. The end of each positioning anchor rod away from the hard protective layer is threadedly connected to a limit ring.

[0010] Preferably, the second drive unit includes a second drive motor fixedly mounted on an end of the supporting plate away from the hard protective layer, the lower sides of the two movable rings are fixedly connected to a connecting seat, and a slider is fixedly mounted on the lower side of each connecting seat, and a sliding groove adapted for the slider is provided on the upper surface of the supporting plate, and a bidirectional screw rod is rotatably connected in the sliding groove, the bidirectional screw rod passes through the two sliders and is threadedly connected to the slider, and one end of the bidirectional screw rod passes through the supporting plate and is fixedly mounted to the output end of the second drive motor.

[0011] Preferably, the arc-shaped inner side wall of each arc-shaped positioning plate is provided with a plurality of embedding grooves, and cylindrical balls are embedded in the plurality of embedding grooves.

[0012] Preferably, a plurality of fixing columns are fixedly installed on the lower surface of the supporting plate, the lower ends of the fixing columns are conical and the fixing columns are inserted into the bottom of the foundation pit.

[0013] Preferably, each of the movable rings is provided with a protective cover on one side, and the protective cover is fixedly mounted on the one side of the movable ring by fasteners.

[0014] In view of the shortcomings of the existing technology, the present invention provides a pipe jacking correction device, which overcomes the shortcomings of the existing technology. The beneficial effects of the present invention are:

[0015] 1. In the present invention, a movable ring is provided, and a plurality of arc-shaped positioning plates are provided in each of the two movable rings. When it is necessary to correct the centering of the jacking pipe body to be pushed in and the jacking pipe body that has been pushed in, the positions of the two movable rings are adjusted by the second driving unit, and the first driving unit is started to drive the plurality of arc-shaped positioning plates to move toward each other to correct the centering of the jacking pipe body to be pushed in. This has a rapid centering and correction effect on the jacking pipe body to be pushed in, thereby improving the construction efficiency of the jacking pipe body.

[0016] 2. In the present invention, a positioning unit is provided. After the positions of the load-bearing plate and the movable ring are determined, the positioning anchor rod passes through the fixed ring and the two movable rings, and one end is fixedly connected to the hard protective layer. The limiting ring is tightened to improve the stability of the entire device.

[0017] 3. In the present invention, a second drive unit is provided. When the positions of the two movable rings need to be adjusted, the second drive motor cooperates with the bidirectional screw to drive the two movable rings to move toward or away from each other, so that the jacking pipe bodies of different lengths and diameters can be positioned and corrected, thereby improving the applicability of the overall device.

[0018] 4. In the present invention, by providing cylindrical balls, when the jacking pipe body is positioned and corrected, the rotatable cylindrical balls reduce the friction with the side of the jacking pipe body, which helps to quickly correct the positioning of the jacking pipe body.

[0019] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic structural diagram of a partial cross-section of the load-bearing plate in the present invention;

[0023] Figure 3 This is a structural diagram of the slider in the utility model;

[0024] Figure 4 This is a schematic structural diagram of a partial cross-section of the movable ring in the present invention;

[0025] Figure 5 This is a schematic structural diagram of the rotating ring in the present invention;

[0026] Figure 6 for Figure 2 A in the middle is an enlarged structural diagram;

[0027] Figure 7 for Figure 5 Enlarged structural diagram at point B in the middle.

[0028] In the figure: 1. Loading plate; 2. Hard protective layer; 3. Placement table; 4. Jacking pipe body; 5. Moving ring; 6. Sliding plate; 7. Arc positioning plate; 8. First drive unit; 9. Positioning unit; 10. Second drive unit; 11. Rotating ring; 12. First gear; 13. First drive motor; 14. Second gear; 15. Fixed ring; 16. Positioning anchor rod; 17. Limiting ring; 18. Second drive motor; 19. Connecting seat; 20. Slider; 21. Slide groove; 22. Bidirectional screw rod; 23. Embedded groove; 24. Cylindrical ball; 25. Fixed column; 26. Protective cover. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0030] Example 1

[0031] See also Figure 1-Figure 7 The lifting mechanism 4 is a kind of lifting mechanism that is convenient to use and can realize the lifting of lifting and lowering of the lifting mechanism 4. The lifting mechanism 4 is convenient to use and can realize the lifting of lifting and lowering of the lifting mechanism 4. The lifting mechanism 4 is convenient to use and can realize the lifting of lifting and lowering of the lifting mechanism 4.

[0032] Specific implementation methods in this embodiment: When constructing the jacking pipe body 4, the bearing plate 1 is accurately positioned and installed at the bottom of the foundation pit through fixing parts such as expansion bolts. The fixing column 25 is pressed to the bottom of the foundation pit by the equipment to improve the stability of the bearing plate 1, and the two moving rings 5 ​​are accurately positioned by the positioning unit 9. The positions of the two moving rings 5 ​​are adapted to the positions where the jacking pipe body 4 needs to be jacked in. When the previous jacking pipe body 4 needs to be jacked in by the pressure equipment, the subsequent jacking pipe body 4 is lifted to the two placement platforms 3 by the lifting equipment for placement. The jacking pipe body 4 that has been jacked in and the jacking pipe body 4 to be jacked in are centered and corrected. At this time, the second driving unit 10 is started, and the second driving unit 1 0 drives the two moving rings 5 ​​to move toward each other, and the two moving rings 5 ​​move to the side of the jacking body 4 to be pushed in, and the first driving unit 8 is started. The first driving unit 8 drives several sliding plates 6 in the moving ring 5 to move toward each other, and several arc-shaped positioning plates 7 clamp the jacking body 4 and correct the position. At this time, the jacking body 4 to be pushed in is aligned with the jacking body 4 that has been pushed in, and the pressure equipment is started to support one end of the jacking body 4 to be pushed in, and the first driving unit 8 is started in the reverse direction to drive the arc-shaped positioning plate 7 to move away from the jacking body 4 to be pushed in. The pressure equipment is started again to push the jacking body 4 in, which has a rapid centering and correction effect on the jacking body 4 to be pushed in, thereby improving the construction efficiency of the jacking body 4.

[0033] It is worth noting that the number of the above-mentioned sliding plates 6 is not limited and is at least two, depending on the volume of the on-site jacking pipe body 4. A larger jacking pipe body 4 can have multiple (such as four) sliding plates 6. A larger number of sliding plates 6 can also improve the accuracy of positioning and correction.

[0034] Example 2

[0035] See also Figure 1-Figure 7 , this embodiment includes the above-mentioned embodiment, wherein the first driving unit 8 includes a rotating ring 11 rotatably connected in each moving ring 5, a plurality of first gears 12 rotatably connected in the moving ring 5 that mesh with the rotating ring 11 and the sliding plate 6, a first driving motor 13 is fixedly installed on one side of the moving ring 5, and a second gear 14 rotatably connected in the moving ring 5 that meshes with the rotating ring 11, and an output end of the first driving motor 13 is fixedly installed on the second gear 14, and a plurality of embedded grooves 23 are opened on the arc inner side wall of each arc-shaped positioning plate 7, and cylindrical balls 24 are embedded in the plurality of embedded grooves 23, and a protective cover plate 26 is provided on one side of each moving ring 5, and the protective cover plate 26 is fixedly installed on one side of the moving ring 5 by fasteners.

[0036] Specific implementation method in this embodiment: After the first drive motor 13 is started, the output end of the first drive motor 13 drives the second gear 14 to rotate, and the second gear 14 drives the rotating ring 11 to rotate. The rotating ring 11 also drives several first gears 12 to rotate. When the first gear 12 rotates, it will drive the sliding plate 6 to slide, thereby achieving the effect of one first drive motor 13 driving several arc-shaped positioning plates 7 to move synchronously toward or away from each other. Several cylindrical balls 24 are embedded in the embedding groove 23 of the arc-shaped positioning plate 7. When the top pipe body 4 is positioned and corrected, the rotatable cylindrical balls 24 reduce the friction with the side of the top pipe body 4, which helps to quickly correct the deviation and position the top pipe body 4. The protective cover plate 26 is used to protect the internal parts of the moving ring 5. At the same time, the protective cover plate 26 installed by fasteners can be disassembled to facilitate maintenance of the parts inside the moving ring 5.

[0037] Among them, the first drive motor 13 mentioned above can be purchased on the market. It is a mature technology and has been fully disclosed, so it is not repeated in the specification. The first drive motor 13 is equipped with a power connection line, and it is electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power line, and the main controller can be a conventional known device such as a computer that plays a control role.

[0038] Implementation Three

[0039] See also Figure 1 and Figure 2 This embodiment includes all of the above embodiments, wherein the positioning unit 9 includes a fixed ring 15 fixedly mounted on the upper surface of the end of the carrier plate 1 away from the hard protective layer 2. A plurality of positioning anchor rods 16 are passed through the fixed ring 15. One end of the positioning anchor rod 16 passes through the two movable rings 5 ​​and extends into the hard protective layer 2 for fixation. The end of the positioning anchor rod 16 away from the hard protective layer 2 is threadedly connected to a limit ring 17.

[0040] Specific implementation method in this embodiment: After the positions of the supporting plate 1 and the movable ring 5 are determined, several positioning anchor rods 16 pass through the fixed ring 15 and the two movable rings 5, and one end is fixedly connected to the hard protective layer 2. The technology for fixing the positioning anchor rod 16 to the hard protective layer 2 is an existing well-known technology. After one end of the positioning anchor rod 16 is fixed, it is threadedly connected to the side of the end of the positioning anchor rod 16 away from the hard protective layer 2 through a limiting ring 17. Tightening the limiting ring 17 improves the stability of the overall device. The movable ring 5 is limited by the positioning anchor rod 16 when moving. The equipment for pressing the top pipe body 4 can pass through the inside of the fixed ring 15. The distance between the two upper positioning anchor rods 16 is greater than the outer diameter of the top pipe body 4, and will not hinder the placement of the top pipe body 4.

[0041] Implementation Four

[0042] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 This embodiment includes all the above embodiments, wherein the second drive unit 10 includes a second drive motor 18 fixedly mounted on the end of the carrier plate 1 away from the hard protective layer 2, the lower sides of the two movable rings 5 ​​are fixedly connected to a connecting seat 19, and a slider 20 is fixedly mounted on the lower side of each connecting seat 19. A slide groove 21 adapted to the slider 20 is provided on the upper surface of the carrier plate 1, and a bidirectional screw rod 22 is rotatably connected in the slide groove 21. The bidirectional screw rod 22 passes through the two sliders 20 and is threadedly connected to the slider 20. One end of the bidirectional screw rod 22 passes through the carrier plate 1 and is fixedly mounted to the output end of the second drive motor 18.

[0043] The specific implementation method in this embodiment is as follows: when the position of the two movable rings 5 ​​needs to be adjusted, by starting the second drive motor 18, the output end of the second drive motor 18 drives the bidirectional screw rod 22 to rotate. The threads on the side surfaces of the bidirectional screw rod 22 are symmetrical and opened in opposite directions. Therefore, when the bidirectional screw rod 22 rotates, it will drive the two sliders 20 to slide toward or away from each other in the slide groove 21, thereby realizing the movement of the two movable rings 5 ​​toward or away from each other. As long as the length and width of the supporting plate 1 are sufficient, the top pipe bodies 4 of different lengths and diameters can be positioned and corrected, thereby improving the applicability of the overall device.

[0044] Among them, the second drive motor 18 mentioned above can be purchased on the market. It is a mature technology and has been fully disclosed, so it is not repeated in the specification. The second drive motor 18 is equipped with a power connection line, and it is electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power line, and the main controller can be a conventional known device such as a computer that plays a control role.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pipe jacking correction device, comprising a bearing plate (1) fixedly mounted in a foundation pit, wherein the inner side walls of the foundation pit are provided with a hard protective layer (2), and the bearing plate (1) is fixedly mounted on the side of the hard protective layer (2), characterized in that: Two symmetrical placement platforms (3) are fixedly connected to the upper surface of the supporting plate (1), and a top pipe body (4) is placed on the upper ends of the two placement platforms (3). A symmetrical and accurately positioned moving ring (5) is slidably connected to the upper surface of the supporting plate (1), and a plurality of sliding plates (6) in an equidistant circular array are slidably connected in the two moving rings (5). The facing ends of each sliding plate (6) are fixedly connected to an arc-shaped positioning plate (7) adapted to the side of the top pipe body (4). Each moving ring (5) is provided with a first driving unit (8) capable of simultaneously driving the sliding plates (6) to move toward or away from each other. The supporting plate (1) is provided with a positioning unit (9) for positioning the two moving rings (5). The supporting plate (1) is provided with a second driving unit (10) for driving the two moving rings (5) to move toward or away from each other.

2. A pipe jacking correction device according to claim 1, characterized in that: The first driving unit (8) includes a rotating ring (11) rotatably connected in each of the moving rings (5), a plurality of first gears (12) rotatably connected in the moving rings (5) and meshing with the rotating rings (11) and the sliding plate (6), a first driving motor (13) fixedly mounted on one side of the moving ring (5), a second gear (14) rotatably connected in the moving ring (5) and meshing with the rotating ring (11), and an output end of the first driving motor (13) is fixedly mounted on the second gear (14).

3. The pipe jacking correction device according to claim 1, characterized in that: The positioning unit (9) comprises a fixed ring (15) fixedly mounted on the upper surface of one end of the carrier plate (1) away from the hard protective layer (2); a plurality of positioning anchor rods (16) are passed through the fixed ring (15); one end of the positioning anchor rod (16) passes through two movable rings (5) and extends into the hard protective layer (2) for fixation; and one end of the positioning anchor rod (16) away from the hard protective layer (2) is threadedly connected to a limiting ring (17).

4. The pipe jacking correction device according to claim 1, characterized in that: The second drive unit (10) includes a second drive motor (18) fixedly mounted on one end of the carrier plate (1) away from the hard protective layer (2), the lower sides of the two movable rings (5) are fixedly connected to a connecting seat (19), and the lower side of each connecting seat (19) is fixedly mounted with a slider (20), and the upper surface of the carrier plate (1) is provided with a slide groove (21) adapted to the slider (20), and a bidirectional screw rod (22) is rotatably connected in the slide groove (21), and the bidirectional screw rod (22) passes through the two sliders (20) and is threadedly connected to the slider (20), and one end of the bidirectional screw rod (22) passes through the carrier plate (1) and is fixedly mounted to the output end of the second drive motor (18).

5. The pipe jacking correction device according to claim 1, characterized in that: The arc-shaped inner side wall of each arc-shaped positioning plate (7) is provided with a plurality of embedding grooves (23), and cylindrical balls (24) are embedded in the plurality of embedding grooves (23).

6. The pipe jacking correction device according to claim 1, characterized in that: A plurality of fixing columns (25) are fixedly mounted on the lower surface of the bearing plate (1), the lower ends of the fixing columns (25) are tapered and the fixing columns (25) are inserted into the bottom of the foundation pit.

7. The pipe jacking correction device according to claim 1, characterized in that: A protective cover plate (26) is provided on one side of each movable ring (5), and the protective cover plate (26) is fixedly mounted on one side of the movable ring (5) via fasteners.

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