Pipe deflection detection device in pipe jacking construction and equipment for pipe jacking
By using a detection device during pipe jacking construction, the rolling element makes close contact with the inner wall of the pipe fitting, allowing for real-time detection of pipe fitting deviation. This solves the problem of difficult pipe fitting deviation detection and improves construction accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 5
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-15
AI Technical Summary
In pipe jacking construction, pipe misalignment is difficult to detect in real time and accurately, which leads to reduced construction accuracy and increases project risks and costs.
A detection device is adopted, including a first telescopic mechanism and a detection mechanism. The rolling element is in close contact with the inner wall of the pipe fitting. The degree of pipe fitting deviation is determined by the distance detection mechanism. Real-time alarm is realized by combining an information processing unit and an alarm unit.
It enables real-time and accurate detection of pipe fitting misalignment, improving construction efficiency, reducing construction accidents, and lowering project risks.
Smart Images
Figure CN224247031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe jacking construction technology, specifically to a detection device for pipe fitting deviation during pipe jacking construction and equipment used for pipe jacking. Background Technology
[0002] Pipe jacking is an underground pipeline construction method developed after shield tunneling. It eliminates the need for surface excavation and can traverse highways, railways, rivers, surface buildings, underground structures, and various underground pipelines. Pipe jacking utilizes the thrust between the main jacking cylinder and the pipe to push the tool pipe or tunneling machine from the working shaft through the soil to the receiving shaft, where it is then lifted. Simultaneously, the pipeline following the tool pipe or tunneling machine is buried between the two shafts, achieving a trenchless underground pipeline laying method.
[0003] In actual construction, due to factors such as geological conditions, guide rail installation accuracy, pipe fitting manufacturing errors, or hydraulic system control deviations, pipe fittings are prone to skewing or shifting during the jacking process. This can easily affect construction accuracy, potentially leading to pipe fitting damage, guide rail deformation, and even safety accidents. In traditional pipe jacking construction, manual observation makes it difficult to detect minute deviations in pipe fittings in real time and accurately, easily delaying the opportunity to correct them. Even if deviation is detected, the process of manually adjusting the hydraulic system is time-consuming, failing to meet the demands of efficient construction. In short, failure to correct pipe fitting deviations in a timely manner can lead to construction accidents, increasing project risks and costs. Utility Model Content
[0004] In view of this, the present invention provides a detection device for pipe fitting deviation during pipe jacking construction and equipment for pipe jacking, aiming to solve the problem of how to determine whether the pipe fitting has deviated or shifted during the jacking process of pipe jacking construction.
[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows:
[0006] A device for detecting pipe fitting deviation during pipe jacking construction includes a first telescopic mechanism and a detection mechanism disposed on the movable part of the first telescopic mechanism; the telescopic direction of the first telescopic mechanism is parallel to the axial direction of the pipe fitting to drive the detection mechanism to reciprocate along the axial direction of the pipe fitting inside the pipe fitting; the detection mechanism includes a rolling element for sliding and / or rolling contact with the inner wall of the pipe fitting; the rolling element has a degree of freedom to reciprocate along the radial direction of the pipe fitting; the detection mechanism further includes a distance detection mechanism for detecting the distance the rolling element moves radially in the pipe fitting.
[0007] In some alternative embodiments, the detection mechanism further includes an elastic element; the rolling element is supported by the elastic element on the movable portion of the first telescopic mechanism; the elastic element has an elastic tendency to cause the rolling element to move in close contact with the inner wall of the tube.
[0008] In some alternative embodiments, the elastic elements are provided in multiples and arranged at circumferential intervals along the tube.
[0009] In some alternative embodiments, the detection mechanism further includes a second telescopic mechanism; the second telescopic mechanism is disposed between the movable part of the first telescopic mechanism and the rolling element and drives the rolling element to reciprocate in the radial direction of the pipe.
[0010] In some alternative embodiments, the second telescopic mechanism is provided in multiple forms and arranged at intervals along the axial direction of the pipe.
[0011] In some optional embodiments, the detection mechanism further includes a connecting seat and a mounting seat disposed on the side of the connecting seat away from the movable portion of the first telescopic mechanism; the second telescopic mechanism is disposed between the movable portion of the first telescopic mechanism and the connecting seat; the elastic element is disposed between the connecting seat and the mounting seat; and the rolling element is rotatably mounted on the mounting seat.
[0012] In some alternative embodiments, an extension member is further included, which is connected to the movable portion of the first telescopic mechanism and serves as its extension; the end of the second telescopic mechanism away from the connecting seat is mounted on the extension member.
[0013] In some alternative embodiments, the detection mechanism is provided in multiple parts and is evenly distributed along the circumference of the pipe fitting.
[0014] In some optional implementations, an information processing unit and an alarm unit are also included; the distance detection mechanism, the information processing unit, and the alarm unit are electrically connected.
[0015] In some alternative implementations, the device includes a fixing member, a propulsion mechanism, a push plate, and a detection device as described above; the push plate is connected to the fixing member via the propulsion mechanism; the propulsion direction of the propulsion mechanism is parallel to the axial direction of the pipe to drive the push plate to push the pipe forward; the first telescopic mechanism is mounted on the fixing member.
[0016] In summary, compared with the prior art, this utility model has the following advantages and beneficial effects:
[0017] During pipe jacking construction, the detection mechanism described in this application embodiment is placed inside the pipe fitting, ensuring that the rolling element remains in close contact with the inner wall of the fitting. If the pipe fitting becomes misaligned, the first telescopic mechanism drives the detection mechanism to reciprocate along the axial direction of the fitting within the pipe fitting. The rolling element then moves radially within the fitting. The degree of misalignment is determined by measuring the distance the rolling element moves radially within the fitting using the distance detection mechanism. If the fitting is not misaligned, the rolling element will not move radially, and the distance measured by the distance detection mechanism will be almost zero. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the detection device described in Embodiment 1 of this utility model.
[0019] Figure 2 This is a schematic diagram of the structure of the device described in Embodiment 2 of this utility model.
[0020] Figure 3 This is a schematic diagram of the structure of the equipment described in Embodiment 2 of this utility model during pipe jacking operations.
[0021] Figure 4 for Figure 3 A cross-sectional view of the structure shown.
[0022] The meanings of the labels in the diagram are as follows:
[0023] First telescopic mechanism 1, detection mechanism 2, extension member 21, second telescopic mechanism 22, connecting seat 23, elastic member 24, mounting seat 25, rolling element 26, distance detection mechanism 27, fixing member 31, propulsion mechanism 32, push plate 33, pipe fitting 4. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.
[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number, while "above," "below," "within," etc. are understood to include the stated number. If terms such as "first," "second," etc., are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.
[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0028] Example 1
[0029] like Figure 1 As shown in the figure, this application embodiment introduces a detection device for pipe fitting deviation during pipe jacking construction, including a first telescopic mechanism 1 and a detection mechanism 2.
[0030] The detection mechanism 2 is installed on the movable part of the first telescopic mechanism 1. For example... Figure 3 and Figure 4 As shown, the telescopic direction of the first telescopic mechanism 1 is parallel to the axial direction of the pipe 4 so as to drive the detection mechanism 2 to reciprocate within the pipe 4 along the axial direction of the pipe 4. The first telescopic mechanism 1 can be any one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.
[0031] The detection mechanism 2 includes a rolling element 26 for sliding and / or rolling contact with the inner wall of the pipe fitting 4, the rolling element 26 having a degree of freedom to reciprocate radially along the pipe fitting 4. The rolling element 26 may be a roller.
[0032] The detection mechanism 2 further includes a distance detection mechanism 27, which is used to detect the distance the rolling element 26 moves radially in the pipe fitting 4. The distance detection mechanism 27 can be, for example, a laser rangefinder, and its measuring direction is preferably perpendicular to the axial direction of the pipe fitting 4.
[0033] During pipe jacking construction, the detection mechanism 2 described in this embodiment is placed inside the pipe fitting 4, ensuring that the rolling element 26 remains in close contact with the inner wall of the pipe fitting 4. If the pipe fitting 4 becomes skewed, when the first telescopic mechanism 1 drives the detection mechanism 2 to reciprocate along the axial direction of the pipe fitting 4, the rolling element 26 does not actually move strictly along the axial direction of the pipe fitting 4, but rather deviates from the axial direction, causing the rolling element 26 to move a small distance in the radial direction of the pipe fitting 4. The degree of skewness of the pipe fitting 4 is determined by detecting the distance the rolling element 26 moves in the radial direction of the pipe fitting 4 through the distance detection mechanism 27. If the pipe fitting 4 does not become skewed, the rolling element 26 will not move in the radial direction of the pipe fitting 4, and the value measured by the distance detection mechanism 27 will be almost zero.
[0034] As an optional implementation method, such as Figure 1 As shown, the detection mechanism 2 in this embodiment may further include an elastic element 24. The rolling element 26 is supported by the elastic element 24 on the movable part of the first telescopic mechanism 1, and the elastic element 24 has an elastic tendency to make the rolling element 26 move tightly against the inner wall of the tube 4.
[0035] The elastic element 24 can be, for example, a spring or an elastic rubber column, and is always under pressure, thereby always applying a thrust to the rolling element 26 to keep the rolling element 26 in close contact with the inner wall of the tube 4.
[0036] Optionally, multiple elastic elements 24 are provided and arranged at intervals along the circumference of the tube 4. Multiple elastic elements 24 can provide more reliable elastic support for the rolling element 26, further ensuring that the rolling element 26 can always be in close contact with the inner wall of the tube 4.
[0037] As an optional implementation method, such as Figure 1 As shown, the detection mechanism 2 in this embodiment may further include a second telescopic mechanism 22, which is located between the movable part of the first telescopic mechanism 1 and the rolling body 26 and drives the rolling body 26 to reciprocate in the radial direction of the tube 4.
[0038] The second telescopic mechanism 22 can also be any of a hydraulic cylinder, pneumatic cylinder, or electric cylinder, and its telescopic direction is perpendicular to the axial direction of the pipe fitting 4. The second telescopic mechanism 22 drives the rolling element 26 to reciprocate in the radial direction of the pipe fitting 4 so that the detection mechanism 2 described in this application embodiment can be applied to pipe fittings 4 of various sizes and specifications.
[0039] Optionally, multiple second telescopic mechanisms 22 are provided and arranged at intervals along the axial direction of the pipe fitting 4. Multiple second telescopic mechanisms 22 can ensure that the rolling element 26 reciprocates stably and reliably in the radial direction of the pipe fitting 4.
[0040] As an optional implementation method, such as Figure 1 As shown, the detection mechanism 2 in this embodiment may further include a connecting seat 23 and a mounting seat 25 disposed on the side of the connecting seat 23 away from the movable part of the first telescopic mechanism 1. The second telescopic mechanism 22 is disposed between the movable part of the first telescopic mechanism 1 and the connecting seat 23; the elastic member 24 is disposed between the connecting seat 23 and the mounting seat 25; and the rolling element 26 is rotatably mounted on the mounting seat 25.
[0041] The rolling element 26, mounting base 25, elastic element 24, connecting base 23, and second telescopic mechanism 22 are sequentially connected radially along the pipe fitting 4. Optionally, the connecting base 23 is plate-shaped, with its length direction parallel to the telescopic direction of the first telescopic mechanism 1. Multiple second telescopic mechanisms 22 are distributed at intervals between the movable part of the first telescopic mechanism 1 and the connecting base 23 along the telescopic direction of the first telescopic mechanism 1. Multiple mounting bases 25 are installed at intervals on the connecting base 23 along the telescopic direction of the first telescopic mechanism 1, and multiple elastic elements 24 are provided between each mounting base 25 and the connecting base 23. These elastic elements 24 are distributed at intervals perpendicular to the telescopic direction of the first telescopic mechanism 1, and each mounting base 25 is equipped with a rolling element 26. Furthermore, each mounting base 25 is equipped with a distance detection mechanism 27, the detection direction of which is perpendicular to the telescopic direction of the first telescopic mechanism 1 and aligned with the connecting base 23.
[0042] The above structure ensures that at least two rolling elements 26 are in contact with the inner wall of the pipe fitting 4 along the axial direction, making it easier to detect whether the pipe fitting 4 is skewed by the distance detection mechanism 27.
[0043] As an optional implementation method, such as Figure 1 As shown, the detection device described in this application embodiment may further include an extension member 21 connected to the movable part of the first telescopic mechanism 1 and serving as an extension of the movable part, and the end of the second telescopic mechanism 22 away from the connecting seat 23 is mounted on the extension member 21.
[0044] The first telescopic mechanism 1 can increase the range of movement of the detection mechanism 2 within the pipe fitting 4 by extending the extension member 21, thereby expanding the detection range and efficiency of the detection device described in this application embodiment and improving the detection accuracy.
[0045] Optionally, multiple detection mechanisms 2 are provided and evenly distributed along the circumference of the pipe fitting 4, for example, adjacent detection mechanisms 2 are spaced 90° apart. In this way, the pipe fitting 4 can be detected at multiple locations at once, resulting in higher detection efficiency and easier detection of the direction of deviation.
[0046] As an optional implementation, the detection device described in this application embodiment may further include an information processing unit and an alarm unit. The distance detection mechanism 27, the information processing unit, and the alarm unit are electrically connected. The distance detection mechanism 27 transmits the measured information to the information processing unit for processing. If the detected value is greater than or equal to a preset value, the information processing unit sends an alarm signal to the alarm unit to alert personnel; if the detected value is less than the preset value, the information processing unit does not send an alarm signal to the alarm unit.
[0047] Example 2
[0048] like Figures 2-4 As shown in the embodiment, this application introduces a device for pipe jacking construction, including a fixing component 31, a propulsion mechanism 32, a pusher plate 33, and a detection device described in Embodiment 1.
[0049] The push plate 33 is connected to the fixing member 31 through the propulsion mechanism 32. The propulsion direction of the propulsion mechanism 32 is parallel to the axis of the pipe 4 so as to drive the push plate 33 to push the pipe 4 forward.
[0050] The first telescopic mechanism 1 is mounted on the fixing member 31.
[0051] The fixing member 31 can be a precast concrete wall, and the first telescopic mechanism 1 and the propulsion mechanism 32 can be connected to the bolts pre-embedded in the fixing member 31 to achieve installation.
[0052] The propulsion mechanism 32 can also be any of a hydraulic cylinder, pneumatic cylinder, or electric cylinder. A push plate 33 is connected to the movable part of the propulsion mechanism 32; optionally, the push plate 33 is arc-shaped to fit the end of the tube 4. Multiple propulsion mechanisms 32 can be provided between the push plate 33 and the fixing member 31 to ensure sufficient and stable propulsion force.
[0053] In use, the push plate 33 contacts the end of the pipe fitting 4, and the push plate 33 is driven forward by the propulsion mechanism 32 to realize the jacking construction of the pipe fitting 4. At the same time, in the detection device described in Example 1, the first telescopic mechanism 1 drives the detection mechanism 2 to move back and forth on the pipe fitting 4. If the pipe fitting 4 does not deviate during the jacking construction, no alarm message will be issued; if the pipe fitting 4 deviates during the jacking construction, an alarm message will be issued, the propulsion mechanism 32 will stop operating, and the posture of the pipe fitting 4 should be adjusted to ensure that it does not deviate during subsequent jacking construction.
[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0055] The above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A device for detecting pipe fitting deviation during pipe jacking construction, characterized in that: It includes a first telescopic mechanism (1) and a detection mechanism (2) disposed on the movable part of the first telescopic mechanism (1); The telescopic direction of the first telescopic mechanism (1) is parallel to the axial direction of the pipe fitting (4) so as to drive the detection mechanism (2) to reciprocate within the pipe fitting (4) along the axial direction of the pipe fitting (4); The detection mechanism (2) includes a rolling element (26) for sliding and / or rolling contact with the inner wall of the pipe fitting (4); the rolling element (26) has a degree of freedom to reciprocate radially along the pipe fitting (4); The detection mechanism (2) further includes a distance detection mechanism (27), which is used to detect the distance the rolling element (26) moves in the radial direction of the pipe fitting (4).
2. The device for detecting pipe fitting deviation during pipe jacking construction as described in claim 1, characterized in that: The detection mechanism (2) further includes an elastic element (24); the rolling element (26) is supported by the elastic element (24) on the movable part of the first telescopic mechanism (1); the elastic element (24) has an elastic tendency to make the rolling element (26) move tightly against the inner wall of the pipe (4).
3. The detection device for pipe fitting deviation during pipe jacking construction as described in claim 2, characterized in that: The elastic element (24) is provided in multiple parts and is arranged at intervals along the circumference of the pipe (4).
4. The device for detecting pipe fitting deviation during pipe jacking construction as described in claim 2, characterized in that: The detection mechanism (2) also includes a second telescopic mechanism (22); the second telescopic mechanism (22) is located between the movable part of the first telescopic mechanism (1) and the rolling body (26) and drives the rolling body (26) to reciprocate in the radial direction of the pipe (4).
5. The device for detecting pipe fitting deviation during pipe jacking construction as described in claim 4, characterized in that: The second telescopic mechanism (22) has multiple components and is arranged at intervals along the axial direction of the pipe (4).
6. The device for detecting pipe fitting deviation during pipe jacking construction as described in claim 5, characterized in that: The detection mechanism (2) also includes a connecting seat (23) and a mounting seat (25) located on the side of the connecting seat (23) away from the movable part of the first telescopic mechanism (1). The second telescopic mechanism (22) is located between the movable part of the first telescopic mechanism (1) and the connecting seat (23); the elastic element (24) is located between the connecting seat (23) and the mounting seat (25); the rolling element (26) is rotatably mounted on the mounting seat (25).
7. The device for detecting pipe fitting deviation during pipe jacking construction as described in claim 6, characterized in that: It also includes an extension member (21) connected to the movable part of the first telescopic mechanism (1) and serving as its extension; the end of the second telescopic mechanism (22) away from the connecting seat (23) is mounted on the extension member (21).
8. A device for detecting pipe fitting deviation during pipe jacking construction as described in any one of claims 1-7, characterized in that: The testing mechanism (2) is provided in multiple parts and is evenly distributed along the circumference of the pipe fitting (4).
9. A device for detecting pipe fitting deviation during pipe jacking construction as described in any one of claims 1-7, characterized in that: It also includes an information processing unit and an alarm unit; the distance detection mechanism (27), the information processing unit and the alarm unit are electrically connected.
10. An apparatus for pipe jacking in pipe jacking construction, characterized in that: It includes a fixing member (31), a propulsion mechanism (32), a push plate (33), and a detection device as described in any one of claims 1-9; The push plate (33) is connected to the fixing member (31) through the pushing mechanism (32); the pushing direction of the pushing mechanism (32) is parallel to the axis of the pipe (4) so as to drive the push plate (33) to push the pipe (4) forward; The first telescopic mechanism (1) is mounted on the fixing member (31).