Pipeline settlement detection device

Abstract

The invention relates to the technical field of pipeline detection, and particularly discloses a pipeline settlement detection device, which comprises a base; the upper sleeve shell and the lower sleeve shell are mounted on the base; the plurality of groups of detection pieces are uniformly distributed in the upper sleeve shell and the lower sleeve shell in the circumferential direction; the base is pre-buried in the stable rock stratum at the deeper position below the pipeline, it is ensured that the datum point of the detection device cannot move along with sedimentation of the soil layer above, the detection rod in the detection piece can conduct self-adaptive radial telescopic movement according to sedimentation of the pipeline, the sedimentation amount of the pipeline can be monitored, and the detection accuracy is improved. In addition, the settlement direction can be determined through the installation angle of the detection piece corresponding to the maximum contraction stroke, double monitoring of the settlement direction and the settlement amount is achieved, settlement data can be read more visually and easily, the settlement state of the pipeline can be judged conveniently, rapidly and accurately, and the monitoring efficiency and the data real-time performance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detection, and more specifically, to a pipeline settlement detection device. Background Art

[0002] Due to factors such as geological structure, groundwater level changes, soil shrinkage, etc., the foundation soil is deformed, which causes the buried pipeline to settle. Excessive settlement will cause the pipeline to deform or even break. Therefore, it is necessary to detect and effectively monitor the settlement of the pipeline.

[0003] The existing technology does not take into account the stability of the benchmark point of the detection device itself, resulting in the benchmark point changing position as the soil layer settles, thereby affecting the accuracy and reliability of the monitoring data. The existing settlement detection device can usually only detect the settlement of a local area or a single direction of the pipeline, and cannot provide all-round settlement data, nor can it determine the specific direction of the settlement, which is not conducive to quickly and accurately judging the settlement status of the pipeline. Summary of the invention

[0004] In order to overcome the above technical problems, the present invention proposes a pipeline settlement detection device.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A pipeline settlement detection device, comprising:

[0007] The base has two sets of guide studs symmetrically and vertically fixed on both sides thereof, and the upper ends of the guide studs are threadedly connected with adjustment nuts;

[0008] An upper sleeve shell is movably mounted on the guide stud, and an upper liner is embedded in the upper sleeve shell;

[0009] A lower casing is detachably connected to the upper casing, wherein a lower liner is embedded in the lower casing, and the lower liner and the upper liner are spliced ​​to form a cylindrical structure for accommodating the pipeline;

[0010] A reinforcing stud, which is threadedly connected to the middle of the base, and the reinforcing stud abuts against the bottom of the lower casing;

[0011] The detection member is provided with several groups and is evenly distributed in the cylindrical structure in the circumferential direction. The detection member comprises a sleeve, which is fixed in the cylindrical structure through a mounting frame. The sleeve is slidable toward one end of the pipeline and is provided with a detection rod abutting against the outer wall of the pipeline.

[0012] As a further solution of the present invention: a ball sleeve is arranged at one end of the detection rod facing the pipeline, and a ball is movably embedded in the ball sleeve.

[0013] As a further solution of the present invention: one end of the sleeve away from the detection rod is connected to a detection chamber, the sleeve is filled with liquid, and a flow detector for detecting the liquid flow is arranged in the detection chamber.

[0014] As a further solution of the present invention: a supporting spring abutting against the detection rod is arranged in the sleeve.

[0015] As a further solution of the present invention: a first partition and a second partition are provided in the detection chamber, and the first partition and the second partition divide the detection chamber into a first chamber, an installation chamber and a second chamber in sequence, and the second chamber is connected with the interior of the sleeve, and a spiral coil is provided in the installation chamber, and both ends of the spiral coil are respectively connected with the first chamber and the second chamber, and the flow detector is arranged in the flow channel of the spiral coil.

[0016] As a further solution of the present invention: a flexible capsule connected to the spiral coil is arranged in the first chamber, and a through hole connected to the outside is opened on one side of the first chamber.

[0017] As a further solution of the present invention: flexible sealing members wrapping the pipeline are arranged on both sides of the upper shell and the lower shell.

[0018] As a further solution of the present invention: the two groups of flexible seals on the same side of the upper shell and the lower shell are adapted to be spliced ​​with each other; a sealing groove is provided on the splicing surface of the flexible seal of the upper shell, and a sealing strip adapted to the sealing groove is provided on the splicing surface of the flexible seal of the lower shell.

[0019] As a further solution of the present invention: the flexible sealing member comprises an annular airbag and a conical airbag which are interconnected, and an end of the conical airbag away from the annular airbag is provided with an expansion portion which fits against the outer wall of the pipeline.

[0020] As a further solution of the present invention: a recessed portion is provided on the lower shell, an extrusion airbag is arranged in the recessed portion, a first air hole is provided on one side of the extrusion airbag, and a second air hole is provided on the corresponding side of the annular airbag, and the first air hole is connected to the second air hole; a protrusion adapted to the recessed portion is provided on the upper shell.

[0021] Beneficial effects of the present invention:

[0022] The present invention ensures that the reference point of the detection device will not move with the settlement of the upper soil layer by pre-burying the base in a stable rock layer deeper below the pipeline, thereby providing a stable reference for pipeline settlement monitoring; a plurality of groups of detection parts are evenly distributed circumferentially in the upper inner liner and the lower inner liner, and this design enables the device to monitor the settlement of the pipeline in all directions and provide comprehensive settlement data; the detection rod can move radially with respect to the pipeline, and this adaptive mechanism enables the detection rod to move with the settlement of the pipeline, so as to monitor the settlement changes of the pipeline in real time; through the contraction stroke data of the detection rod, not only the settlement amount of the pipeline can be monitored, but also the settlement direction can be determined through the installation angle of the detection part corresponding to the maximum contraction stroke, thereby realizing dual monitoring of the settlement direction and the settlement amount, making the reading of the settlement data more intuitive and easy, facilitating the rapid and accurate judgment of the settlement state of the pipeline, and improving the monitoring efficiency and the real-time performance of the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0025] Figure 2 A three-dimensional schematic diagram of another viewing angle of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the upper inner container and the lower inner container in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the lower liner and the detection member in the present invention;

[0028] Figure 5 It is a schematic diagram of the position distribution of the detection element and the pipeline in the present invention;

[0029] Figure 6 It is a three-dimensional schematic diagram of the detection element in the present invention;

[0030] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0031] Figure 8 is a cross-sectional view of the detection member in the present invention;

[0032] Fig. 9 It is a schematic diagram of the internal structure of the detection chamber in the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the lower casing and the flexible sealing member in the present invention;

[0034] Fig.11 for Fig.10 Enlarged view of point B in the middle;

[0035] Fig.12 for Fig.10 Enlarged view of point C in the middle;

[0036] Fig.13 It is a schematic diagram of the cooperation between the flexible seal and the pipeline in the present invention;

[0037] Fig.14 for Fig.13 Enlarged view of point D in the middle;

[0038] Fig.15 It is a schematic diagram of the structure of the upper housing and the flexible sealing member in the present invention;

[0039] Fig.16 for Fig.15 Enlarged view of point E in the middle.

[0040] In the figure:

[0041] 100, base; 110, guide stud; 120, upper shell; 121, raised portion; 130, lower shell; 131, recessed portion; 132, extrusion airbag; 133, first air hole; 140, adjustment nut; 150, reinforcement stud; 160, flexible seal; 161, annular airbag; 162, conical airbag; 163, second air hole; 164, expansion portion; 200, upper liner; 210, lower liner; 3 00, detection part; 310, detection chamber; 311, first partition; 312, second partition; 313, first chamber; 314, mounting chamber; 315, second chamber; 316, through hole; 320, mounting frame; 330, sleeve; 340, detection rod; 341, ball sleeve; 342, ball; 350, spiral coil; 360, support spring; 370, flexible capsule; 380, flow detector; 400, pipeline. DETAILED DESCRIPTION

[0042] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0043] See also Figure 1 and Figure 2The present invention discloses a pipeline settlement detection device, comprising a base 100, an upper shell 120, a lower shell 130, an upper liner 200, a lower liner 210 and a detection member 300; two groups of guide studs 110 are symmetrically and vertically fixed on both sides of the base 100, the upper shell 120 is movably sleeved on the guide studs 110, and the upper end of the guide studs 110 is threadedly connected with an adjusting nut 140; the lower shell 130 is detachably connected to the upper shell 120, and a reinforcing stud 150 is threadedly connected to the middle of the base 100, and the reinforcing stud 150 abuts against the bottom of the lower shell 130;

[0044] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 The upper shell 120 is embedded with an upper liner 200, and the lower shell 130 is embedded with a lower liner 210. The upper liner 200 and the lower liner 210 are spliced ​​to form a cylindrical structure for accommodating the pipe 400. A plurality of groups of detection members 300 are evenly distributed in the circumferential direction of the cylindrical structure. The detection member 300 includes a sleeve 330, and the sleeve 330 is fixed in the cylindrical structure through a mounting frame 320. The sleeve 330 is slidably provided with a detection rod 340 that abuts against the outer wall of the pipe 400 at one end thereof.

[0045] Specifically, the base 100 is pre-buried in a stable rock layer at a deeper depth below the pipeline 400 to ensure that the base 100 itself will not collapse and settle along with the soil layer at the landfill of the upper pipeline 400, and then the upper shell 120 and the lower shell 130 are wrapped around the outer periphery of the pipeline 400 and sealed and connected, and then the upper shell 120 is passed through the guide studs 110 on both sides, so that the bottom of the lower shell 130 abuts against the upper end of the reinforcing studs 150, and then the adjusting nut 140 and the reinforcing studs 150 are rotated to drive the upper shell 120 and the lower shell 130 to move up and down as a whole until the axis of the internal cylindrical structure coincides with the axis of the pipeline 400, so that each group of detection components 300 distributed circumferentially abuts against the outer wall of the pipeline 400, and the calibration of the detection device and the pipeline 400 is completed, and finally the entire detection device and the pipeline 400 are landfilled;

[0046] Since the detection rod 340 can move radially with respect to the pipe 400, when the pipe 400 sinks in a certain direction, the detection rod 340 of the corresponding detection member 300 is adaptively retracted into the sleeve 330 under the push of the pipe 400, and the contraction stroke data of each group of detection rods 340 are obtained, among which the contraction stroke of the corresponding detection rod 340 consistent with the sinking direction of the pipe 400 is the largest. By querying the installation angle corresponding to the detection member 300 with the largest contraction stroke, the sinking direction and specific amount of the pipe 400 can be known.

[0047] For further information, see Figure 5 In order to more accurately detect the settlement direction and specific settlement amount of the pipeline 400, the installation angles of each group of detection components 300 in the cylindrical structure can be marked. Taking the installation angle of one group of detection components 300 as the reference point, that is, its installation angle is 0°, the installation angles of other detection components 300 can be divided into equal angles within the range of 360°. During the settlement detection process, when the contraction stroke of the detection rod 340 in a group of detection components 300 is the largest, and the installation angle of the group of detection components 300 is a°, it means that the pipeline 400 settles in the direction of a°, and its settlement amount in this direction is the corresponding contraction amount of the detection rod 340 in the group of detection components 300.

[0048] It should be noted that the present invention ensures that the reference point of the detection device will not move with the settlement of the upper soil layer by pre-burying the base 100 in a stable rock layer deeper below the pipeline 400, thereby providing a stable reference for pipeline settlement monitoring; a plurality of groups of detection members 300 are evenly distributed in the circumferential direction of the upper inner liner 200 and the lower inner liner 210. This design enables the device to monitor the settlement of the pipeline 400 in all directions and provide comprehensive settlement data. The detection rod 340 can move radially with respect to the pipeline 400. This adaptive mechanism enables the detection rod 340 to move with the settlement of the pipeline 400 and monitor the settlement changes of the pipeline 400 in real time; through the contraction stroke data of the detection rod 340, not only the settlement amount of the pipeline 400 can be monitored, but also the settlement direction can be determined by the installation angle of the detection member 300 corresponding to the maximum contraction stroke, thereby realizing dual monitoring of the settlement direction and the settlement amount, making the reading of the settlement data more intuitive and easy, facilitating the rapid and accurate judgment of the settlement state of the pipeline 400, and improving the monitoring efficiency and the real-time nature of the data.

[0049] In one embodiment, when the pipe 400 sinks in a certain direction, except for the detection rod 340 corresponding to the sinking direction that can be radially contracted, other detection rods 340 adjacent to the group of detection rods 340 will inevitably slide relative to the pipe 400 during the contraction process, which may easily cause scratches on the outer surface of the pipe 400 or even cause the detection rod 340 to bend, deform or break due to the large relative sliding resistance; for this purpose, please refer to Figure 6 and Figure 7 The end of the detection rod 340 facing the pipe 400 is provided with a ball sleeve 341, and a ball 342 is movably embedded in the ball sleeve 341;

[0050] Specifically, no matter in which direction the pipeline 400 sinks, when the detection rod 340 in contact with it moves relative to the pipeline 400, the corresponding ball 342 can adaptively roll along the outer surface of the pipeline 400, thereby effectively reducing the friction resistance between the detection rod 340 and the outer surface of the pipeline 400, improving the responsiveness of the detection rod 340, and avoiding damage to the detection rod 340 and the pipeline 400.

[0051] Further, in order to detect the contraction amount of the detection rod 340, please refer to Figure 6 and Figure 8 The end of the sleeve 330 away from the detection rod 340 is connected to the detection chamber 310, the sleeve 330 is filled with liquid, and the detection chamber 310 is provided with a flow detector 380 for detecting the liquid flow;

[0052] Specifically, when the detection rod 340 contracts as the pipeline 400 settles, it can push the liquid in the sleeve 330 into the detection chamber 310, and the flow rate of the liquid passing through is detected by the flow detector 380. Then, the contraction stroke of the detection rod 340 can be calculated according to the cross-sectional area of ​​the sleeve 330, thereby indirectly detecting the settlement amount of the pipeline 400.

[0053] It should be noted that the above-mentioned flow detector 380 can communicate with the host computer based on the Internet of Things, so that the host computer can obtain the specific installation angle of the corresponding detection component 300 of the flow detector 380 in the cylindrical structure, thereby indirectly obtaining the settlement direction of the pipeline 400 and the settlement amount in this direction.

[0054] In addition, considering that the settlement direction of the pipeline 400 is random and constantly changing, the pipeline 400 may settle in a certain direction in a certain period of time, and after another period of time, the pipeline 400 may settle in a direction opposite to the previous settlement direction. Therefore, in order to accurately detect the settlement dynamics of the pipeline 400 in real time, it is necessary to ensure that each detection member 300 is always in contact with the pipeline 400, so that the detection member 300 can perform adaptive posture adjustment according to the dynamic changes of the pipeline 400. For this purpose, please refer to Figure 8 The sleeve 330 is provided with a supporting spring 360 which abuts against the detection rod 340;

[0055] Under the elastic force of the support spring 360, the detection rod 340 is always pushed outward, so that the detection rod 340 can always be in contact with the outer surface of the pipe 400. In this way, no matter in which direction the pipe 400 sinks, it can be ensured that the detection rods 340 in each group of detection parts 300 are contracted or extended synchronously with the pipe 400, thereby reflecting the current state of the pipe 400 in real time.

[0056] It should be noted that when the pipeline 400 sinks in a certain direction, the detection rod 340 in the detection member 300 that deviates from the direction will extend out of the sleeve 330 in the reverse direction and maintain contact with the outer surface of the pipeline 400. In order to avoid this situation from interfering with the detection data, the flow detection value of the flow detector 380 corresponding to each group of detection rods 340 in the initial state (that is, the state when the pipeline 400 has not yet settled) can be recorded as zero point. When the detection rod 340 contracts, the detection flow of the flow detector 380 is positive, and when the detection rod 340 extends out of the sleeve 330, the detection flow of the flow detector 380 is negative. In other words, the flow detector 380 can detect the flow direction of the liquid when it passes through, and perform cumulative flow detection according to the flow rate of the liquid; in this way, when the pipeline 400 sinks in a certain direction, the detection flow of the corresponding flow detector 380 in the direction is positive and has the largest value. Correspondingly, the detection flow of the corresponding flow detector 380 that is completely deviated from the direction (that is, the opposite side of the direction) is negative and has the largest value.

[0057] For further information, see Fig. 9 In order to improve the detection accuracy of the flow detector 380, the detection chamber 310 is provided with a first partition 311 and a second partition 312, the first partition 311 and the second partition 312 sequentially separate the detection chamber 310 into a first chamber 313, a mounting chamber 314 and a second chamber 315, the second chamber 315 is communicated with the inside of the sleeve 330, the mounting chamber 314 is provided with a spiral coil 350, the two ends of the spiral coil 350 are respectively communicated with the first chamber 313 and the second chamber 315, and the flow detector 380 is arranged in the flow channel of the spiral coil 350;

[0058] Specifically, when the detection rod 340 retracts into the sleeve 330 due to the sedimentation of the pipeline 400, the liquid in the sleeve 330 can be squeezed into the second chamber 315, and then the liquid spirally flows into the first chamber 313 through the spiral coil 350; when the detection rod 340 extends out of the sleeve 330 due to the sedimentation of the pipeline 400, the liquid in the first chamber 313 can be sucked into the first chamber 313 through the spiral coil 350; when the liquid flows in the flow channel of the spiral coil 350, the flow rate of the liquid passing through can be detected by the flow detector 380.

[0059] It is worth noting that the flow channel cross-section of the spiral coil 350 provided in the present embodiment is much smaller than the cross-section of the sleeve 330. Thus, even if the telescopic stroke of the detection rod 340 is small, that is, the flow stroke of the liquid in the sleeve 330 is small, since the flow channel cross-section of the spiral coil 350 is much smaller than the cross-section of the sleeve 330, the flow stroke of the liquid flowing through the spiral coil 350 is greatly increased, thereby achieving the effect of amplifying the flow stroke of the liquid, making it easier for the flow detector 380 to detect the flow value more accurately and improve the accuracy of sedimentation detection.

[0060] Also, see Fig. 9 The first chamber 313 is provided with a flexible capsule 370 communicating with the spiral coil 350, and one side of the first chamber 313 is provided with a through hole 316 communicating with the outside;

[0061] Specifically, the flexible capsule 370 can be adaptively expanded or contracted according to the volume of the liquid contained therein, that is, when the liquid is squeezed into the flexible capsule 370, the flexible capsule 370 expands and its internal volume increases, and when the liquid is sucked out, the internal volume of the flexible capsule 370 decreases and contracts; when the flexible capsule 370 expands or contracts, the gas in the first chamber 313 can freely enter and exit through the through hole 316, thereby maintaining the balance of the internal air pressure of the first chamber 313; the setting of the flexible capsule 370 can flexibly wrap and contain the liquid and effectively isolate it, thereby preventing the liquid from leaking and affecting the detection accuracy.

[0062] In yet another embodiment, see Fig.10 and Fig.13 , considering that when the pipeline 400 settles, the pipeline 400 will be relatively offset from the upper casing 120 and the lower casing 130, so that the axis of the pipeline 400 no longer coincides with the axis of the upper casing 120 and the lower casing 130, in order to prevent the upper casing 120 and the lower casing 130 from affecting the natural settlement of the pipeline 400, and to prevent the surrounding soil from entering the internal space of the upper casing 120 and the lower casing 130 when the pipeline 400 settles and affecting the detection process, both sides of the upper casing 120 and the lower casing 130 are provided with flexible sealing members 160 that wrap the pipeline 400;

[0063] Specifically, the flexible seal 160 can seal the openings on both sides of the cylindrical structure formed by the upper inner liner 200 and the lower inner liner 210, and can adaptively bend and deform according to the settlement of the pipeline 400, thereby preventing peripheral soil blocks from entering the cylindrical structure without affecting the natural settlement displacement of the pipeline 400 itself.

[0064] For further information, see Fig.13The two sets of flexible seals 160 on the same side of the upper shell 120 and the lower shell 130 are adapted to each other and spliced; wherein a sealing groove is provided on the splicing surface of the flexible seal 160 of the upper shell 120, and a sealing strip adapted to the sealing groove is provided on the splicing surface of the flexible seal 160 of the lower shell 130;

[0065] During installation, the upper shell 120 and the lower shell 130 are buckled together from the upper and lower sides of the pipe 400 to wrap the pipe 400 inside, and then the two sets of flexible seals 160 on the same side are spliced ​​so that the sealing strips are embedded in the corresponding sealing grooves, thereby achieving sealing of the openings on both sides of the cylindrical structure.

[0066] For further information, see Fig.10 , Fig.11 and Fig.12 In order to improve the sealing effect of the contact position between the flexible seal 160 and the pipe 400, the flexible seal 160 includes an annular airbag 161 and a conical airbag 162 which are connected to each other. The annular airbag 161 is embedded in the corresponding upper shell 120 or lower shell 130. The end of the conical airbag 162 away from the annular airbag 161 is provided with an expansion portion 164 which is in contact with the outer wall of the pipe 400.

[0067] Specifically, when the upper shell 120 and the lower shell 130 are spliced ​​together, the annular airbag 161 of the flexible seal 160 can be squeezed, so that the gas in the annular airbag 161 enters the expansion part 164 through the conical airbag 162, and then the expansion part 164 expands and adheres tightly to the outer wall of the pipe 400, so as to improve the sealing between the expansion part 164 and the pipe 400, and prevent external soil fragments from penetrating into the interior of the detection device from the gap between the flexible seal 160 and the pipe 400 and causing damage to the detection part 300.

[0068] See also Fig.11 , Fig.14 , Fig.15 and Fig.16 In order to improve the expansion sealing effect of the expansion part 164, a recessed part 131 is provided on the lower shell 130, and an extrusion airbag 132 is arranged in the recessed part 131. A first air hole 133 is provided on one side of the extrusion airbag 132, and a second air hole 163 is provided on one side of the corresponding annular airbag 161, and the first air hole 133 is communicated with the second air hole 163; a protrusion 121 adapted to the recessed part 131 is provided on the upper shell 120;

[0069] Specifically, when the upper shell 120 is spliced ​​with the lower shell 130, the raised portion 121 of the upper shell 120 is just inserted into the recessed portion 131 of the lower shell 130, thereby squeezing the extrusion airbag 132, so that the gas in the extrusion airbag 132 enters the annular airbag 161 through the first air hole 133 and the second air hole 163, and then enters the expansion portion 164 through the conical airbag 162, so as to realize automatic expansion of the expansion portion 164.

[0070] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A pipeline settlement detection device, characterized in that: include: A base (100) having two groups of guide studs (110) symmetrically and vertically fixed on both sides thereof, wherein the upper ends of the guide studs (110) are threadedly connected with adjustment nuts (140); An upper casing (120) is movably sleeved on the guide stud (110), and an upper liner (200) is embedded in the upper casing (120); A lower casing (130) is detachably connected to the upper casing (120); a lower inner liner (210) is embedded in the lower casing (130); the lower inner liner (210) and the upper inner liner (200) are spliced ​​to form a cylindrical structure for accommodating a pipeline (400); A reinforcing stud (150) is threadedly connected to the middle of the base (100), and the reinforcing stud (150) abuts against the bottom of the lower casing (130); A detection member (300) is provided in a plurality of groups and is evenly distributed in the circumferential direction in the cylindrical structure. The detection member (300) comprises a sleeve (330) which is fixed in the cylindrical structure via a mounting frame (320). One end of the sleeve (330) is slidably provided with a detection rod (340) which abuts against the outer wall of the pipeline (400).

2. A pipeline settlement detection device according to claim 1, characterized in that: A ball sleeve (341) is provided at one end of the detection rod (340) facing the pipeline (400), and a ball (342) is movably embedded in the ball sleeve (341).

3. A pipeline settlement detection device according to claim 1, characterized in that: One end of the sleeve (330) away from the detection rod (340) is connected to the detection chamber (310); the sleeve (330) is filled with liquid; and a flow detector (380) for detecting the flow of the liquid is arranged in the detection chamber (310).

4. A pipeline settlement detection device according to claim 3, characterized in that: A supporting spring (360) is arranged in the sleeve (330) and is in contact with the detection rod (340).

5. A pipeline settlement detection device according to claim 3, characterized in that: A first partition (311) and a second partition (312) are arranged in the detection chamber (310); the first partition (311) and the second partition (312) divide the detection chamber (310) into a first chamber (313), a mounting chamber (314) and a second chamber (315) in sequence; the second chamber (315) is communicated with the interior of the sleeve (330); a spiral coil (350) is arranged in the mounting chamber (314); two ends of the spiral coil (350) are respectively communicated with the first chamber (313) and the second chamber (315); and the flow detector (380) is arranged in the flow channel of the spiral coil (350).

6. A pipeline settlement detection device according to claim 5, characterized in that: A flexible capsule (370) communicating with the spiral coil (350) is disposed in the first chamber (313), and a through hole (316) communicating with the outside is provided on one side of the first chamber (313).

7. A pipeline settlement detection device according to claim 1, characterized in that: Flexible sealing members (160) for wrapping the pipeline (400) are provided on both sides of the upper casing (120) and the lower casing (130).

8. A pipeline settlement detection device according to claim 7, characterized in that: The two groups of flexible sealing members (160) on the same side of the upper shell (120) and the lower shell (130) are adapted to be spliced ​​with each other; a sealing groove is provided on the splicing surface of the flexible sealing member (160) of the upper shell (120), and a sealing strip adapted to the sealing groove is provided on the splicing surface of the flexible sealing member (160) of the lower shell (130).

9. A pipeline settlement detection device according to claim 7, characterized in that: The flexible sealing member (160) comprises an annular airbag (161) and a conical airbag (162) which are connected to each other, and an expansion portion (164) which is in contact with the outer wall of the pipe (400) is provided at one end of the conical airbag (162) away from the annular airbag (161).

10. A pipeline settlement detection device according to claim 9, characterized in that: The lower shell (130) is provided with a recessed portion (131), an extrusion airbag (132) is arranged in the recessed portion (131), a first air hole (133) is arranged on one side of the extrusion airbag (132), and a second air hole (163) is arranged on one side of the corresponding annular airbag (161), and the first air hole (133) is communicated with the second air hole (163); the upper shell (120) is provided with a protrusion (121) adapted to the recessed portion (131).

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