Intermediate jacking station

Abstract

The utility model provides an intermediate jacking station, and relates to the field of pipe jacking construction. The intermediate jacking station comprises an outer shell which is of an annular structure; the connecting frame is of an annular structure, is defined by at least two arc-shaped storage frames and is movably arranged on the inner side of the outer shell; the grading ring is movably arranged on the inner side of the outer shell; the rubber water stop ring is arranged on the periphery of the grading ring in a sleeving mode and makes contact with the inner periphery of the outer shell; and the number of the oil hydraulic cylinders is multiple, any one of the oil hydraulic cylinders connects the grading ring and the connecting frame, and when the oil hydraulic cylinders stretch out and draw back, the grading ring is promoted to move in the axis direction of the outer shell. The anti-leakage pipe has the advantages of being easy to disassemble and assemble, low in pipe explosion probability and good in anti-leakage effect.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction, and more specifically, to a relay chamber. Background Art

[0002] A relay chamber is an enclosed annular small chamber set in the middle of a pipe section for sectional jacking in long-distance pipe jacking operations. It is usually made of steel and is equipped with hydraulic cylinders along the pipe ring. Its main function is that when the jacking resistance exceeds the allowable total jacking force and the jacking distance cannot be achieved at one time, by dividing the pipeline into several propulsion intervals, the jacking force of the main hydraulic cylinder is dispersed, and the jacking force of each pipe section is reduced to within the allowable jacking force range, so as to achieve the goal of sectional relay jacking.

[0003] A relay chamber generally consists of an outer shell and hydraulic cylinders. Among them, the outer shell is used to connect the front and rear pipe bodies, and the hydraulic cylinders are used to push the front pipe body forward. The following situations exist in actual use:

[0004] First, there are a large number of hydraulic cylinders. Multiple hydraulic cylinders are arranged and distributed along the circumferential direction of the outer shell, and each hydraulic cylinder is detachably connected to the outer shell individually. When performing assembly or disassembly operations, it is not only time-consuming and laborious, but also difficult to disassemble and assemble.

[0005] In addition, dangerous tools such as angle grinders and gas cutting will be used when disassembling and assembling the hydraulic cylinders on the outer shell. If the operation is improper, it is very easy to accidentally injure the operator and cause safety accidents.

[0006] Second, the hydraulic cylinders act directly on the pipe body, and the force is concentrated at one point. The stress concentration situation is likely to cause the pipe body to burst.

[0007] Third, water seepage is likely to occur at the sliding connection between the front side of the outer shell and the pipe body.

[0008] To sum up, these problems seriously affect the use effect and safety of the relay chamber. Solving the problems of difficult disassembly and assembly and potential safety hazards can improve work efficiency and ensure the personal safety of construction workers; solving the problem of pipe body bursting caused by hydraulic cylinders can reduce the risk of pipeline damage and maintenance costs; solving the problem of water seepage at the connection between the outer shell and the pipe body can ensure the quality and stability of the pipe jacking project. Therefore, it is very necessary and urgent to solve these problems. Summary of the Utility Model

[0009] The purpose of the utility model is to provide a relay chamber, aiming to solve the technical problems in the above background art.

[0010] The technical solution of the utility model is realized as follows:

[0011] The technical solution of this application provides a relay chamber, including:

[0012] The outer housing is in a ring structure;

[0013] The connecting frame is in a ring structure and is formed by enclosing at least two arc-shaped frames;

[0014] Wherein, the connecting frame is arranged inside the outer housing and can be inserted into or taken out of the outer housing;

[0015] The pressure equalizing ring is movably arranged inside the above-mentioned outer housing;

[0016] The rubber water stop ring is sleeved on the outer periphery of the above-mentioned pressure equalizing ring and contacts the inner periphery of the above-mentioned outer housing; and

[0017] There are multiple oil cylinders, and any one of the oil cylinders connects the above-mentioned pressure equalizing ring and the above-mentioned connecting frame. When the oil cylinder expands and contracts, it causes the above-mentioned pressure equalizing ring to move along the axis direction of the above-mentioned outer housing.

[0018] A further technical solution is that the multiple above-mentioned oil cylinders are evenly spaced along the circumferential direction of the above-mentioned connecting frame.

[0019] A further technical solution is that each of the above-mentioned oil cylinders and the above-mentioned connecting frame are detachably connected by a hoop.

[0020] A further technical solution is that an annular groove is circumferentially arranged on the outer periphery of the above-mentioned pressure equalizing ring, and the above-mentioned rubber water stop ring is arranged in the above-mentioned annular groove.

[0021] A further technical solution is that a movable steel ring is sleeved on the above-mentioned annular groove, and the above-mentioned movable steel ring is movably arranged in the above-mentioned annular groove;

[0022] Wherein, the above-mentioned pressure equalizing ring is in threaded fit with an adjusting bolt, and the adjusting bolt is connected to the above-mentioned movable steel ring. When the adjusting bolt rotates relative to the above-mentioned pressure equalizing ring, the above-mentioned movable steel ring squeezes the above-mentioned rubber water stop ring.

[0023] A further technical solution is that the number of the above-mentioned adjusting bolts is multiple, and the multiple above-mentioned adjusting bolts are evenly spaced along the circumferential direction of the above-mentioned movable steel ring.

[0024] A further technical solution is that the above-mentioned pressure equalizing ring includes at least two arc-shaped pieces spliced into a ring.

[0025] A further technical solution is that any one of the above-mentioned arc-shaped pieces includes a first arc-shaped sheet, a second arc-shaped sheet and a reinforcing rib. The first arc-shaped sheet and the second arc-shaped sheet are arranged at intervals, and the reinforcing rib connects the first arc-shaped sheet and the second arc-shaped sheet.

[0026] Compared with the prior art, the technical solution of the present utility model has at least the following advantages or beneficial effects:

[0027] In this application, in the first aspect, the hydraulic cylinder is installed on the connecting frame, and the connecting frame is flexibly arranged within the outer casing. This enables the connecting frame to be easily inserted into or removed from the outer casing relative to the outer casing, thereby achieving the rapid insertion or removal of the hydraulic cylinder group relative to the outer casing. In this way, it has the prominent advantage of being easy to assemble and disassemble. In addition, it is worth mentioning that there is no connecting structure between the connecting frame and the outer casing, so there is no need to perform complex and potentially risky grinding or cutting operations between the two. Compared with the cumbersome and somewhat dangerous disassembly and assembly methods of traditional hydraulic cylinders, this design of this application is obviously safer and more reliable.

[0028] In the second aspect, multiple hydraulic cylinders act on the jacking pipe together through the pressure equalizing ring. This unique design cleverly disperses the acting force of the hydraulic cylinder group evenly, successfully avoiding the stress concentration of the jacking pipe. In this way, the force on the jacking pipe becomes more uniform, effectively avoiding the serious problem of pipe bursting that may occur due to uneven force on the jacking pipe, greatly ensuring the stability and reliability of the equipment operation, and reducing the maintenance cost and production delay caused by jacking pipe failures.

[0029] In the third aspect, the rubber water stop ring plays a crucial role. It can excellently achieve the tight seal between the pressure equalizing ring and the jacking pipe, significantly reducing the probability of leakage between the pressure equalizing ring and the jacking pipe.

[0030] In the fourth aspect, in a traditional relay chamber, when all components are removed, a pipe casing (connected to the cement pipes at both ends) will remain. For the gap left after removing the components from the pipe casing, separate construction is still required to fill it with cement or cement segments to ensure the smoothness of the inner side of the entire pipeline. However, for the relay chamber disclosed in this application, after removing the components inside the outer casing, there are no gaps and residues inside the outer casing, and no further construction treatment is required, simplifying the construction process and having stronger practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0032] Figure 1 Isometric view of a relay chamber according to an embodiment of the present utility model;

[0033] Figure 2 Full sectional view of a relay chamber according to an embodiment of the present utility model;

[0034] Figure 3 is Figure 2 Partial enlarged view of A in

[0035] Figure 4 is the axonometric view of the embodiment of the present utility model after removing the outer casing;

[0036] Figure 5 is Figure 4 exploded view of

[0037] Figure 6 is the structural schematic diagram of the connecting frame of the embodiment of the present utility model.

[0038] Icon: 1 - outer casing, 2 - arc-shaped product rack, 3 - oil cylinder, 4 - hoop, 5 - arc-shaped part, 501 - first arc-shaped piece, 502 - reinforcing rib, 503 - second arc-shaped piece, 6 - movable steel ring, 7 - rubber water stop ring, 8 - adjusting bolt, 9 - annular groove. Specific implementation manner

[0039] Embodiment

[0040] Please refer to Figures 1 - 6 , a relay room includes: an outer casing 1, which is of a circular structure; a connecting frame, which is of a circular structure and is formed by enclosing at least two arc-shaped product racks 2; wherein, the above-mentioned connecting frame is arranged inside the above-mentioned outer casing 1 and can be inserted into the above-mentioned outer casing 1 or taken out from the above-mentioned outer casing 1; a pressure equalizing ring, which is movably arranged inside the above-mentioned outer casing 1; a rubber water stop ring 7, which is sleeved on the outer periphery of the above-mentioned pressure equalizing ring and contacts the inner periphery of the above-mentioned outer casing 1; and a plurality of oil cylinders 3, any one of the oil cylinders 3 connects the above-mentioned pressure equalizing ring and the above-mentioned connecting frame, and when the oil cylinder 3 expands and contracts, it causes the above-mentioned pressure equalizing ring to move along the axis direction of the above-mentioned outer casing 1.

[0041] In the present application, on the one hand, the oil cylinder 3 is installed on the connecting frame, and the connecting frame is flexibly arranged inside the outer casing 1. This enables the connecting frame to be easily inserted into or taken out of the outer casing 1, thereby realizing the rapid insertion or removal of the oil cylinder group relative to the outer casing 1. In this way, it has the outstanding advantages of being easy to assemble and disassemble. In addition, it is worth mentioning that there is no connecting structure between the connecting frame and the outer casing 1, so there is no need to perform complex and potentially risky grinding or cutting operations between the two. Compared with the cumbersome and somewhat dangerous disassembly and assembly methods of the traditional oil cylinder 3, the design of the present application is obviously safer and more reliable.

[0042] In the second aspect, multiple hydraulic cylinders 3 act on the jacking pipe together through the pressure equalizing ring. This unique design ingeniously disperses the acting forces of the hydraulic cylinder group 3 evenly, successfully avoiding the stress concentration of the jacking pipe. In this way, the force on the jacking pipe becomes more uniform, effectively avoiding the serious problem of pipe bursting that may occur due to uneven force on the jacking pipe, greatly ensuring the stability and reliability of the equipment operation, and reducing the maintenance cost and production delay caused by jacking pipe failures.

[0043] In the third aspect, the rubber water stop ring 7 plays a crucial role. It can excellently achieve the tight seal between the pressure equalizing ring and the jacking pipe, significantly reducing the probability of leakage between the pressure equalizing ring and the jacking pipe.

[0044] In the fourth aspect, in a traditional relay chamber, after all components are removed, a pipe shell (connected to the cement pipes at both ends) remains. For the gap left after removing the components from the pipe shell, separate construction is still required to fill it with cement or cement segments to ensure the smoothness of the inner side of the entire pipe. However, in the relay chamber disclosed in this application, after removing the components inside the outer shell 1, there are no gaps or residues inside the outer shell 1, eliminating the need for further construction treatment, simplifying the construction process, and having stronger practicability.

[0045] It should be noted that there is no connection relationship between two adjacent arc racks 2, and they are only butted against each other. The annular structure formed by butting at least two arc racks 2 fits tightly inside the outer shell 1, which is beneficial to ensuring the stability of the annular structure.

[0046] In some embodiments of the present utility model, multiple of the above-mentioned hydraulic cylinders 3 are evenly spaced along the circumferential direction of the above-mentioned connecting frame.

[0047] In the above embodiment, multiple hydraulic cylinders 3 are arranged along the circumferential direction of the above-mentioned connecting frame. Such a layout is beneficial to ensuring the uniformity of the force on the pressure equalizing ring and making it easier to adapt to the pushing of the jacking pipe.

[0048] For example, this circumferential arrangement can make the pressure equalizing ring receive balanced forces in all directions, avoiding the situation of excessive or insufficient local force. Thus, when pushing the jacking pipe, it can provide more stable and reliable power support to ensure the stable operation of the entire system.

[0049] Preferably, any one of the hydraulic cylinders 3 is arranged along the axial direction of the outer shell 1, so that the acting force of the hydraulic cylinder 3 acts completely on the equalizing ring.

[0050] In some embodiments of the present utility model, each of the above-mentioned hydraulic cylinders 3 and the above-mentioned connecting frame are detachably connected by a hoop 4.

[0051] In the above embodiments, the connection method of the hoop 4 can achieve the quick connection or disassembly of the hydraulic cylinder 3 and the arc-shaped rack 2. Furthermore, a rubber gasket is provided at the docking position between the hoop 4 and the hydraulic cylinder 3, which plays a protective role for the hydraulic cylinder 3.

[0052] For example, in actual operation, when the hydraulic cylinder 3 needs to be repaired or replaced, the quick connection or disassembly characteristics of the hoop 4 can greatly improve work efficiency. The existence of the rubber gasket can reduce the friction and collision between the hoop 4 and the hydraulic cylinder 3, effectively extending the service life of the hydraulic cylinder 3.

[0053] In some embodiments of the present utility model, an annular groove 9 is circumferentially provided on the outer periphery of the above-mentioned pressure equalizing ring, and the above-mentioned rubber water stop ring 7 is arranged in the above-mentioned annular groove 9.

[0054] In the above embodiments, the annular groove 9 creates space for the installation of the rubber water stop ring 7. One end of the above-mentioned annular groove 9 away from the hydraulic cylinder 3 penetrates through the side of the pressure equalizing ring, which facilitates the replacement of the rubber water stop ring 7 and has strong practicability.

[0055] For example, when the rubber water stop ring 7 becomes aged or damaged due to long-term use, this design enables the operator to easily take it out and replace it with a new rubber water stop ring 7 without complex operation steps, greatly improving the convenience and efficiency of maintenance.

[0056] In some embodiments of the present utility model, the above-mentioned annular groove 9 is sleeved with a movable steel ring 6, and the above-mentioned movable steel ring 6 is movably arranged in the above-mentioned annular groove 9;

[0057] Wherein, the above-mentioned pressure equalizing ring is in threaded cooperation with an adjusting bolt 8, the above-mentioned adjusting bolt 8 is connected to the above-mentioned movable steel ring 6, and when the above-mentioned adjusting bolt 8 rotates relative to the above-mentioned pressure equalizing ring, the above-mentioned movable steel ring 6 squeezes the above-mentioned rubber water stop ring 7.

[0058] In the above embodiments, by adjusting the adjusting bolt 8, the movable steel ring 6 can be driven to squeeze the rubber water stop ring 7. After the rubber water stop ring 7 deforms under force, its fit with the outer shell 1 will be closer, which is beneficial to enhancing the waterproof function of the rubber water stop ring 7.

[0059] In some embodiments of the present utility model, the number of the above-mentioned adjusting bolts 8 is multiple, and the multiple above-mentioned adjusting bolts 8 are evenly spaced along the circumference of the above-mentioned movable steel ring 6.

[0060] In the above embodiments, the multiple adjusting bolts 8 act on the movable steel ring 6 together, making the force on the rubber water stop ring 7 more uniform, thereby reducing the probability of leakage of the rubber water stop ring 7.

[0061] For example, in actual working conditions, the coordinated action of these multiple adjusting bolts 8 can ensure that all parts of the rubber water stop ring 7 are subjected to balanced pressure, avoiding poor sealing due to insufficient local pressure, and effectively preventing the occurrence of leakage, thereby ensuring the sealing and stability of the entire system.

[0062] In some embodiments of the present invention, the pressure equalizing ring includes at least two arc-shaped parts 5 spliced ​​into a ring.

[0063] In the above embodiment, the pressure equalizing ring is formed by splicing, which makes it easy to place or remove the pressure equalizing ring relative to the outer shell 1.

[0064] In some embodiments of the present invention, any of the above-mentioned arc-shaped parts 5 includes a first arc-shaped piece 501, a second arc-shaped piece 503 and a reinforcing rib 502, the first arc-shaped piece 501 and the second arc-shaped piece 503 are arranged at intervals, and the reinforcing rib 502 connects the first arc-shaped piece 501 and the second arc-shaped piece 503.

[0065] In the above embodiment, the design of the reinforcing ribs 502 can enhance the structural stability of the arc-shaped member 5, thereby improving the structural stability of the pressure equalizing ring. In addition, the number of reinforcing ribs 502 provided on the arc-shaped member 5 is multiple, which is conducive to further strengthening the structural stability of the arc-shaped member 5.

[0066] For example, in actual use, when the pressure equalizing ring is subjected to a large pressure, the reinforcing ribs 502 can effectively disperse and withstand the pressure to prevent deformation or damage of the arc-shaped member 5. The presence of multiple reinforcing ribs 502 provides multiple protections for the arc-shaped member 5, enabling it to maintain good performance in a complex working environment.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A relay room, characterized in that: include: The outer shell (1) is annular in structure; The connecting frame is an annular structure and is composed of at least two arc-shaped storage frames (2); Wherein, the connecting frame is arranged inside the outer shell (1) and can be placed into the outer shell (1) or taken out from the outer shell (1); A pressure equalizing ring, movably arranged on the inner side of the outer shell (1); A rubber water stop ring (7) is sleeved on the outer circumference of the pressure equalizing ring and is in contact with the inner circumference of the outer shell (1); as well as There are multiple hydraulic cylinders (3), and any one of the hydraulic cylinders (3) connects the pressure equalizing ring and the connecting frame to drive the pressure equalizing ring to move along the axial direction of the outer shell (1).

2. A relay room according to claim 1, characterized in that: The plurality of hydraulic cylinders (3) are evenly spaced along the circumference of the connecting frame.

3. A relay room according to claim 2, characterized in that: Each of the oil hydraulic cylinders (3) and the connecting frame is detachably connected via a clamp (4).

4. A relay room according to claim 1, characterized in that: An annular groove (9) is circumferentially arranged on the outer periphery of the pressure equalizing ring, and the rubber water stop ring (7) is arranged in the annular groove (9).

5. A relay room according to claim 4, characterized in that: The annular groove (9) is sleeved with a movable steel ring (6), and the movable steel ring (6) is movably arranged in the annular groove (9); The thread of the pressure-equalizing ring is matched with an adjusting bolt (8), and the adjusting bolt (8) is connected to the movable steel ring (6). When the adjusting bolt (8) rotates relative to the pressure-equalizing ring, the movable steel ring (6) squeezes the rubber water stop ring (7).

6. A relay room according to claim 5, characterized in that: The number of the adjusting bolts (8) is multiple, and the multiple adjusting bolts (8) are evenly spaced along the circumference of the movable steel ring (6).

7. A relay room according to claim 1, characterized in that: The pressure equalizing ring comprises at least two arc-shaped parts (5) spliced ​​into a ring.

8. A relay room according to claim 7, characterized in that: Any of the arc-shaped pieces (5) comprises a first arc-shaped piece (501), a second arc-shaped piece (503) and a reinforcing rib (502); the first arc-shaped piece (501) and the second arc-shaped piece (503) are arranged at intervals, and the reinforcing rib (502) connects the first arc-shaped piece (501) and the second arc-shaped piece (503).

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