Fabricated jacking pipe intermediate jacking station
By designing a prefabricated pipe jacking relay room, and utilizing the sealing connection and expansion device of the sliding ring and connecting ring, sealing and continuous jacking between pipes were achieved, solving the problem that existing relay rooms could not be installed, and ensuring the safety and quality of construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-28
AI Technical Summary
The existing intermediate stations cannot be installed in the axial direction within a pipe jacking system without gaps, making them unusable for long-distance pipe jacking construction.
Design a prefabricated pipe jacking relay station, including a sliding ring, a connecting ring, and a telescopic device. The sliding ring is installed inside the first pipe jacking, and the connecting ring is installed inside the second pipe jacking. A sealing element is provided between the sliding ring and the connecting ring. The telescopic device extends and retracts along the axial direction of the first pipe jacking to achieve relative sliding and sealed connection between the sliding ring and the connecting ring.
It achieves a sealed connection when there is a certain gap between the jacking pipes, preventing water seepage, and enables continuous jacking of the pipes through the expansion and contraction of the expansion device, solving the problem that existing intermediate stations cannot be installed, and ensuring construction safety and quality.
Smart Images
Figure CN224174714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of relay station technology, and in particular to a prefabricated pipe jacking relay station. Background Technology
[0002] Intermediate stations play a crucial role in pipe jacking construction. Their core function is to enable segmented advancement during long-distance jacking, thereby effectively dispersing and reducing the jacking force on each section of the pipe. Through this technical measure, we can solve the problem of insufficient jacking force caused by high friction between the stratum and the pipe, ensuring the safety and quality of construction.
[0003] Existing relay stations are mostly installed between two jacking pipe sections with a gap in the axial direction, connecting the two jacking pipes through the relay station. However, when installing relay stations in long-distance jacking pipe sections where resistance increases and the pipes seize or are pulled back, existing relay stations cannot be installed and used because there is no gap between the pipes in the axial direction. Therefore, it is necessary to develop a new type of relay station that can be installed and used inside the jacking pipe. Utility Model Content
[0004] The purpose of this utility model is to provide a prefabricated pipe jacking relay room to solve the problem that existing relay rooms cannot be installed and used in pipe jacking without gaps in the axial direction.
[0005] To solve the above-mentioned technical problems, this utility model provides a prefabricated pipe jacking relay room, which is installed inside a first pipe and a second pipe. The first pipe and the second pipe are arranged sequentially along the axial direction. The prefabricated pipe jacking relay room includes a first sealing element, a sliding ring installed on the inner side of the wall of the first pipe, a connecting ring installed on the inner side of the wall of the second pipe, and a telescopic device installed on the connecting ring that can extend and retract along the axial direction of the first pipe. The output end of the telescopic device is connected to the sliding ring. The sliding ring is slidably installed on the connecting ring along the axial direction of the first pipe. A first sealing element is provided between the sliding ring and the connecting ring.
[0006] Optionally, a second seal is provided between the sliding ring and the first top tube.
[0007] Optionally, a third seal is provided between the connecting ring and the second top tube.
[0008] Optionally, the sliding ring includes a first fixed ring and a moving ring. The first fixed ring is fixed on the inner wall of the first jacking pipe, the moving ring is fixedly connected to the first fixed ring, and the first fixed ring is sleeved on the outer peripheral wall of the moving ring. The moving ring is slidably mounted on the connecting ring along the axial direction of the first jacking pipe.
[0009] Optionally, at least two first spacer rings are provided on the inner wall of the moving ring, and the first seal is disposed within the space enclosed by the connecting ring, the moving ring, and the two adjacent first spacer rings.
[0010] Optionally, at least two second spacer rings are provided on the outer wall of the moving ring, and the second sealing element is disposed within the space enclosed by the inner wall of the first top pipe, the outer wall of the moving ring, and the two adjacent second spacer rings.
[0011] Optionally, the connecting ring includes a second fixed ring and a fixed ring. The second fixed ring is fixed to the inner wall of the second jacking pipe, and the fixed ring is fixedly connected to the second fixed ring. The moving ring is slidably mounted on the fixed ring along the axial direction of the first jacking pipe.
[0012] Optionally, at least two third spacer rings are provided on the outer wall of the second fixing ring, and the third sealing element is provided in the space enclosed by the inner wall of the second top tube, the outer wall of the second fixing ring, and two adjacent third spacer rings.
[0013] Optionally, it also includes a first sleeve ring, which is fixedly connected to the first fixing ring and to the inner wall of the first jacking pipe.
[0014] Optionally, it may also include a plurality of first reinforcing plates, which are fixedly connected to the inner wall of the first collar and the first fixing ring.
[0015] This utility model provides a prefabricated pipe jacking relay station. ， It has the following beneficial effects:
[0016] Since the sliding ring is installed on the inner side of the first jacking pipe wall and the connecting ring is installed on the inner side of the second jacking pipe wall, and the sliding ring is slidably installed on the connecting ring along the axial direction of the first jacking pipe, and a first sealing element is provided between the sliding ring and the connecting ring, the sliding ring and the connecting ring can slide relative to each other along the axial direction of the first jacking pipe, and the two are sealed together. Thus, when there is a certain gap between the first jacking pipe and the second jacking pipe, water seepage from the outer wall of the pipe is not easily permeated into the inner side of the jacking pipe through the gap between the sliding ring and the connecting ring. Furthermore, the telescopic device is installed on the connecting ring and can extend and retract along the axial direction of the first jacking pipe. The output end of the telescopic device is connected to the sliding ring. Therefore, the telescopic device can make the sliding ring move closer to and away from the connecting ring by extending and retracting the output end. When the sliding ring moves away from the connecting ring, the first jacking pipe advances forward relative to the second jacking pipe. When the sliding ring moves closer to the connecting ring, the second jacking pipe moves closer to the first jacking pipe. In this way, continuous jacking of the jacking pipe can be achieved, thus enabling the installation and use of the prefabricated jacking pipe relay. Attached Figure Description
[0017] Figure 1 This is a first-view structural schematic diagram of a prefabricated pipe jacking relay station installed in a pipe according to an embodiment of this utility model;
[0018] Figure 2 This is a second-view structural schematic diagram of a prefabricated pipe jacking relay station installed in a pipe according to an embodiment of this utility model;
[0019] Figure 3 This is a cross-sectional structural diagram of a prefabricated jacking pipe relay room installed in a jacking pipe according to an embodiment of this utility model;
[0020] Figure 4 This is a structural schematic diagram of a prefabricated pipe jacking relay room in an embodiment of this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 110-First jacking pipe; 120-Second jacking pipe; 130-First sealing element; 140-Sliding ring; 141-First fixed ring; 142-Moving ring; 143-First spacer ring; 144-Second spacer ring; 150-Connecting ring; 151-Second fixed ring; 152-Third spacer ring; 153-Fixed ring; 160-Telescopic device; 170-Second sealing element; 180-Third sealing element; 190-Third fixed ring; 210-First collar ring; 211-First chemical bolt; 220-First reinforcing plate; 230-Second collar ring; 231-Second chemical bolt; 240-Second reinforcing plate. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a first-view structural schematic diagram of a prefabricated pipe jacking relay station installed in a pipe according to an embodiment of this utility model. Figure 2 This is a second-view structural schematic diagram of a prefabricated pipe jacking relay station installed in a pipe according to an embodiment of this utility model. Figure 3 This is a cross-sectional structural diagram of a prefabricated pipe jacking relay room installed in a pipe jacking according to an embodiment of this utility model. Figure 4This is a schematic diagram of the structure of a prefabricated pipe jacking relay room according to an embodiment of the present invention. This embodiment provides a prefabricated pipe jacking relay room installed inside a first pipe 110 and a second pipe 120. The first pipe 110 and the second pipe 120 are arranged sequentially along the axial direction. The prefabricated pipe jacking relay room includes a first sealing element 130, a sliding ring 140 installed on the inner side of the pipe wall of the first pipe 110, a connecting ring 150 installed on the inner side of the pipe wall of the second pipe 120, and a telescopic device 160 installed on the connecting ring 150 that can extend and retract along the axial direction of the first pipe 110. The output end of the telescopic device 160 is connected to the sliding ring 140. The sliding ring 140 is slidably installed on the connecting ring 150 along the axial direction of the first pipe 110. The first sealing element 130 is provided between the sliding ring 140 and the connecting ring 150.
[0030] Since the sliding ring 140 is installed on the inner side of the wall of the first jacking pipe 110 and the connecting ring 150 is installed on the inner side of the wall of the second jacking pipe 120, and the sliding ring 140 is slidably mounted on the connecting ring 150 along the axial direction of the first jacking pipe 110, and a first sealing element 130 is provided between the sliding ring 140 and the connecting ring 150, the sliding ring 140 and the connecting ring 150 can slide relative to each other along the axial direction of the first jacking pipe 110, and are sealed together. Thus, when there is a certain gap between the first jacking pipe 110 and the second jacking pipe 120, water seepage from the outer wall of the pipe is not easily prevented from seeping through the gap between the sliding ring 140 and the connecting ring 150. The expansion joint extends to the inside of the jacking pipe; and the telescopic device 160 is mounted on the connecting ring 150 and can extend and retract along the axial direction of the first jacking pipe 110. The output end of the telescopic device 160 is connected to the sliding ring 140. Therefore, the telescopic device 160 can move the sliding ring 140 closer to and away from the connecting ring 150 by extending and retracting the output end. When the sliding ring 140 moves away from the connecting ring 150, the first jacking pipe 110 advances forward relative to the second jacking pipe 120. When the sliding ring 140 moves closer to the connecting ring 150, the second jacking pipe 120 moves towards the first jacking pipe 110. In this way, continuous jacking of the jacking pipe can be achieved, thus enabling the installation and use of the prefabricated jacking pipe relay.
[0031] Preferably, a second sealing element 170 is provided between the sliding ring 140 and the first jacking pipe 110, thereby enhancing the sealing performance between the assembled jacking pipe relays.
[0032] Preferably, a third sealing element 180 is provided between the connecting ring 150 and the second jacking pipe 120, thereby enhancing the sealing performance between the prefabricated jacking pipe relays.
[0033] The cross-sections of the first seal 130, the second seal 170, and the third seal 180 are all O-shaped, which effectively prevents damage to the wedge-shaped rubber strip-like sealing components at the pipe socket due to repeated startup of the relay.
[0034] In this embodiment, the sliding ring 140 is sleeved on the outer wall of the connecting ring 150.
[0035] refer to Figure 3 The sliding ring 140 includes a first fixed ring 141 and a moving ring 142. The first fixed ring 141 is fixed on the inner wall of the first jacking pipe 110. The moving ring 142 is fixedly connected to the first fixed ring 141, and the first fixed ring 141 is sleeved on the outer peripheral wall of the moving ring 142. The moving ring 142 is slidably mounted on the connecting ring 150 along the axial direction of the first jacking pipe 110.
[0036] Preferably, at least two first spacer rings 143 are provided on the inner wall of the moving ring 142, and the first sealing element 130 is disposed within the space enclosed by the connecting ring 150, the moving ring 142, and the two adjacent first spacer rings 143. This prevents mud or sewage from entering the inner side of the connecting ring 150 and damaging the telescopic device 160.
[0037] Preferably, at least two second spacer rings 144 are provided on the outer wall of the moving ring 142, and the second seal 170 is disposed within the space enclosed by the inner wall of the first jacking pipe 110, the outer wall of the moving ring 142, and two adjacent second spacer rings 144. This prevents soil from entering the inner side of the first jacking pipe 110.
[0038] The connecting ring 150 includes a second fixed ring 151 and a fixed ring 153. The second fixed ring 151 is fixed on the inner wall of the second jacking pipe 120, and the fixed ring 153 is fixedly connected to the second fixed ring 151. The moving ring 142 is slidably mounted on the fixed ring 153 along the axial direction of the first jacking pipe 110.
[0039] Preferably, at least two third spacer rings 152 are provided on the outer wall of the second fixing ring 151, and the third sealing element 180 is disposed within the space enclosed by the inner wall of the second jacking pipe 120, the outer wall of the second fixing ring 151, and two adjacent third spacer rings 152. This prevents soil from entering the inner side of the second jacking pipe 120.
[0040] The prefabricated jacking relay room also includes a third fixing ring 190, which is fixed on the inner wall of the second jacking pipe 120 and is fixedly connected to the second fixing ring 151.
[0041] The prefabricated pipe jacking relay also includes a first collar 210, which is fixedly connected to the first fixing ring 141 and to the inner wall of the first pipe jacking 110. Specifically, the first collar 210 is connected to the first pipe jacking 110 by a first chemical bolt 211.
[0042] The prefabricated pipe jacking relay room also includes multiple first reinforcing plates 220, which are fixedly connected to the inner wall of the first collar 210 and the first fixing ring 141. This facilitates increasing the relay room's resistance to deformation and prevents the relay room from being damaged due to excessive thrust from the telescopic device 160.
[0043] The prefabricated pipe jacking relay also includes a second collar 230, which is fixedly connected to the third fixing ring 190 and to the inner wall of the second pipe 120. Specifically, the second collar 230 is connected to the second pipe 120 by a second chemical bolt 231.
[0044] The prefabricated pipe jacking relay room also includes multiple second reinforcing plates 240, which are fixedly connected to the inner wall of the second collar 230 and the third fixing ring 190. This facilitates increasing the relay room's resistance to deformation and prevents the relay room from being damaged due to excessive thrust from the telescopic device 160.
[0045] The telescopic device 160 is a telescopic hydraulic cylinder. The tonnage parameter of the telescopic hydraulic cylinder is not less than 80t. The tonnage parameter of the telescopic hydraulic cylinder refers to the maximum pressure or maximum load capacity it can withstand, which is usually expressed in tons (t) or kilonewtons (kN).
[0046] The working principle of the prefabricated pipe jacking relay station is as follows: When the worker needs to push the first pipe jacking 110, the telescopic device 160 is activated. The activation of the telescopic device 160 can drive the sliding ring 140 to move. The movement of the sliding ring 140 can drive the first fixed ring 141 to move. The movement of the first fixed ring 141 can drive the first collar ring 210 to move. Since the first collar ring 210 is connected to the first pipe jacking 110 through the first chemical bolt 211, the movement of the first collar ring 210 can drive the first pipe jacking 110 to move. At the same time, when the sliding ring 140 moves, it can... The first jacking pipe 110 moves away from the second jacking pipe 120, causing the second jacking pipe 110 to move away from the second jacking pipe 120. At this time, a misalignment gap appears between the first jacking pipe 110 and the second jacking pipe 120. However, the first jacking pipe 143 and the first sealing element 130 can seal the misalignment gap, thereby forming a good sealing effect during the pipe connection process and effectively preventing damage to the wedge-shaped rubber strip-like sealing component at the pipe socket due to repeated start-up of the relay.
[0047] The assembly process of the prefabricated pipe jacking relay station is as follows:
[0048] The first sleeve is installed in the first jacking pipe 110, the first reinforcing plate 220 is welded into the first sleeve, and the first fixing ring 141 is welded into the first jacking pipe 110, with the first fixing ring 141 welded to the first sleeve and the first reinforcing plate 220. A second sealing element 170 is installed on the outer wall of the moving ring 142. When the moving ring 142 is slid to a predetermined position, the first fixing ring 141 is welded to the moving ring 142. A first sealing element 130 is installed on the inner wall of the moving ring 142. The fixed ring 153 is inserted into the moving ring 142 to a predetermined position. A telescopic device 160 is installed between the fixed ring 153 and the moving ring 142, and the fixed ring... After moving 153 to the target position, the fixed ring 153 is welded to the second jacking pipe 120. The third seal 180 is installed in the second fixed ring 151. Then, the second fixed ring 151 is installed in the second jacking pipe 120 and welded to the second jacking pipe 120 and the fixed ring 153 respectively. Then, the third fixed ring 190 is welded to the second jacking pipe 120 and welded to the second fixed ring 151. Then, the second sleeve is installed in the second jacking pipe 120 and welded to the third fixed ring 190. Finally, the second reinforcing plate 240 is welded to the second sleeve and the third fixed ring 190.
[0049] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. A prefabricated pipe jacking relay room, installed inside a first pipe and a second pipe, wherein the first pipe and the second pipe are arranged sequentially along the axial direction, characterized in that, The prefabricated pipe jacking relay includes a first sealing element, a sliding ring installed on the inner side of the first pipe jacking wall, a connecting ring installed on the inner side of the second pipe jacking wall, and a telescopic device installed on the connecting ring that can extend and retract along the axial direction of the first pipe jacking. The output end of the telescopic device is connected to the sliding ring. The sliding ring is slidably installed on the connecting ring along the axial direction of the first pipe jacking. A first sealing element is provided between the sliding ring and the connecting ring.
2. The prefabricated pipe jacking relay room as described in claim 1, characterized in that, A second seal is provided between the sliding ring and the first jacking pipe.
3. The prefabricated pipe jacking relay room as described in claim 1, characterized in that, A third sealing element is provided between the connecting ring and the second top pipe.
4. The prefabricated pipe jacking relay room as described in claim 1, characterized in that, The sliding ring includes a first fixed ring and a moving ring. The first fixed ring is fixed on the inner wall of the first jacking pipe. The moving ring is fixedly connected to the first fixed ring, and the first fixed ring is sleeved on the outer peripheral wall of the moving ring. The moving ring is slidably mounted on the connecting ring along the axial direction of the first jacking pipe.
5. The prefabricated pipe jacking relay room as described in claim 4, characterized in that, At least two first spacer rings are provided on the inner wall of the moving ring, and the first seal is disposed within the space enclosed by the connecting ring, the moving ring and the two adjacent first spacer rings.
6. The prefabricated pipe jacking relay room as described in claim 5, characterized in that, At least two second spacer rings are provided on the outer wall of the moving ring, and the second sealing element is provided in the space enclosed by the inner wall of the first top pipe, the outer wall of the moving ring and the two adjacent second spacer rings.
7. The prefabricated pipe jacking relay room as described in claim 4, characterized in that, The connecting ring includes a second fixed ring and a fixed ring. The second fixed ring is fixed on the inner wall of the second jacking pipe, and the fixed ring is fixedly connected to the second fixed ring. The moving ring is slidably mounted on the fixed ring along the axial direction of the first jacking pipe.
8. The prefabricated pipe jacking relay room as described in claim 7, characterized in that, At least two third spacer rings are provided on the outer wall of the second fixing ring, and the third sealing element is provided in the space enclosed by the inner wall of the second top tube, the outer wall of the second fixing ring, and the two adjacent third spacer rings.
9. The prefabricated pipe jacking relay room as described in claim 4, characterized in that, It also includes a first ring, which is fixedly connected to the first fixing ring and to the inner wall of the first jacking pipe.
10. The prefabricated pipe jacking relay room as described in claim 1, characterized in that, It also includes multiple first reinforcing plates, which are fixedly connected to the inner wall of the first collar and the first fixing ring.