An underground gas pipeline pressure monitoring device

Abstract

The application discloses a kind of underground gas pipeline pressure monitoring devices, for monitoring the stress deformation of soil layer, comprising: monitoring unit, including the main shaft installed in one side of soil layer, be located in the laser head of main shaft outer side for the stress deformation of soil layer is monitored, be located in the cleaning mechanism of laser head outer side for the laser head after each monitoring is cleaned;Clamping unit, including the inserted shaft for being positioned in the soil layer side portion of main shaft one end for limiting main shaft, the outer side of the inserted shaft is equipped with buckle.By setting buckle outside inserted shaft, when the monitoring equipment is installed in soil side wall, inserted shaft is inserted into soil layer and rotates, so that buckle is clamped in soil layer inside, monitoring unit can be installed in one side of soil layer by embedding installation, ensure that the laser of laser head is aimed at and soil layer is in same vertical plane, reduce the monitoring deviation of the monitoring equipment to soil stress deformation.

Description

Technical Field

[0001] This invention relates to the field of underground gas pipeline monitoring technology, specifically to a pressure monitoring device for underground gas pipelines. Background Technology

[0002] Currently, various types of construction are taking place in cities, involving underground pipelines. Third-party construction poses a significant challenge to the protection of gas pipelines. To ensure the stability and safety of underground gas pipelines, it is necessary to regularly monitor the stress and deformation of the soil above the underground gas pipelines. Deformation monitoring can promptly detect the pressure exerted by the soil on the underground gas pipelines during above-ground construction. Laser monitoring instruments are a common device for soil deformation monitoring. They calculate the distance between the target object and the rangefinder by emitting a laser pulse and measuring the time from emission to reception. They have advantages such as high accuracy, fast measurement speed, and non-contact measurement. However, due to the presence of dust in dry soil, existing laser monitoring instruments often encounter difficulties in timely cleaning of the laser head during soil stress and deformation monitoring above gas pipelines. This dust obstructs laser emission and affects the accurate monitoring of soil stress and deformation. Furthermore, due to the size of existing laser monitoring instruments, after installation in the pre-reserved cavity area of ​​the soil, there is a significant gap between the laser head's emission line and the sidewall of the soil cavity. This prevents the laser head from being aligned vertically with the soil cavity sidewall, resulting in monitoring errors. Therefore, it is necessary to improve this defect.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a pressure monitoring device for underground gas pipelines, in order to solve the problems mentioned in the background art regarding the laser monitoring instrument for monitoring soil stress and deformation above gas pipelines embedded in the soil. These problems include dust adhering to the laser head of the instrument, obstructing laser emission and affecting the accuracy of soil stress and deformation monitoring; and the fact that, due to its size limitations, the laser head of the existing laser monitoring instrument cannot keep the light emitted from it on the same vertical plane as the sidewall of the cavity reserved in the soil after installation, further increasing the monitoring deviation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A pressure monitoring device for underground gas pipelines, used to monitor the stress deformation of the soil layer above the pipeline body, comprising: The monitoring unit includes a main shaft installed on one side of the soil layer, a laser head located outside the main shaft for monitoring the stress and deformation of the soil layer, and a cleaning mechanism located outside the laser head for cleaning the laser head after each monitoring. The mounting unit includes an insert shaft located at one end of the main shaft for limiting the main shaft to the side of the soil layer, and a buckle is provided on the outside of the insert shaft.

[0006] Furthermore, the monitoring unit also includes: A rotating sleeve is rotatably fitted on the outside of the main shaft, and the laser head is mounted on the outside of the rotating sleeve; The first limiting ring and the second limiting ring are respectively fixedly sleeved on the outside of the main shaft and located at both ends of the rotating sleeve, and are used to limit the two ends of the rotating sleeve.

[0007] Furthermore, a dust cover is provided on the outer side of the main shaft to isolate and prevent dust from the rotating sleeve; One end of the dust cover is fixedly connected to one end of the main shaft; A retaining ring is inserted into the inner side of the dust cover and the outer side of the rotating sleeve, which is used to cooperate with the dust cover to seal the driving area of ​​the rotating sleeve.

[0008] Furthermore, a driven gear is provided on the outer side of the rotating sleeve; A drive motor is installed on one side inside the dust cover; The drive end of the drive motor is fixedly connected to a drive gear that meshes with the driven gear, which is used to adjust the rotation of the rotating sleeve.

[0009] Furthermore, the cleaning mechanism includes: The receiving frame is fixedly connected to the outside of the second limiting ring; A wiping groove is located at the lower end of the receiving frame and is used to wipe and clean the laser head.

[0010] Furthermore, the outer side of the soil layer is provided with a socket for accommodating the insertion shaft; The housing body has a slot inside for rotating and locking the buckle; The outer side of the soil layer is provided with countersunk holes that extend into the slot.

[0011] Furthermore, the card loading unit also includes: A threaded hole is provided inside the buckle, and the threaded hole is coaxially arranged with the countersunk hole; A locking bolt is inserted into the countersunk hole, and the locking bolt is threadedly connected to the threaded hole, used to position the installed insert shaft.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a snap-fit ​​mechanism on the outside of the insertion shaft. When the monitoring device is installed on the side wall of the soil, the insertion shaft is inserted into the soil layer and rotated so that the snap-fit ​​is locked inside the soil layer. This embedded installation method allows the monitoring unit to be installed on one side of the soil layer, ensuring that the laser beam of the laser head is in the same vertical plane as the soil layer, reducing monitoring errors and enabling timely detection of soil deformation. Attached Figure Description

[0013] Figure 1 This is a diagram showing the distribution of the pipeline body and the monitoring unit of the present invention. Figure 2 This is a schematic diagram showing the connection between the dust cover and the alarm of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention; Figure 4 For the present invention in Figure 3 Enlarged view of point A in the middle; Figure 5 This is a diagram showing the cooperation relationship between the monitoring unit and the mounting unit of the present invention; Figure 6 This is a schematic diagram of the internal structure of the monitoring unit of the present invention; Figure 7 This diagram illustrates the cooperation relationship between the cleaning mechanism and the laser head of the present invention. Figure 8 This is a schematic diagram of the main shaft structure of the present invention; Figure 9 This is a diagram showing the fit between the buckle and the slot of the present invention.

[0014] Reference numerals: 100, Soil layer; 1001, Receiving cavity; 101, Insertion hole; 102, Slot; 103, Countersunk hole; 104, Pipe body; 1, Mounting unit; 11, Insertion shaft; 12, Snap-fit; 121, Threaded hole; 13, Locking bolt; 2, Monitoring unit; 20, Main shaft; 21, Dust cover; 22, Signal output end; 221, Alarm; 23, Rotating sleeve; 231, First limiting ring; 232, Second limiting ring; 24, Driven gear; 25, Retaining ring; 26, Drive motor; 261, Drive gear; 27, Cleaning mechanism; 271, Receiving frame; 272, Wiping groove; 28, Laser head. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-9 The present invention provides a technical solution: A pressure monitoring device for underground gas pipelines, used to monitor the stress deformation of the soil layer 100 above the pipeline body 104, includes: The monitoring unit 2 includes a main shaft 20 installed on one side of the soil layer 100, a laser head 28 located outside the main shaft 20 for monitoring the stress deformation of the soil layer 100, and a cleaning mechanism 27 located outside the laser head 28 for cleaning the laser head 28 after each monitoring. The mounting unit 1 includes an insert shaft 11 located at one end of the main shaft 20 for limiting the main shaft 20 to the side of the soil layer 100, and a buckle 12 is provided on the outside of the insert shaft 11.

[0017] It should be noted that by setting a buckle 12 on the outside of the insertion shaft 11, when the monitoring device is installed on the side wall of the receiving cavity 1001, the insertion shaft 11 is inserted into the soil layer 100 and rotated so that the buckle 12 is locked inside the soil layer 100. The monitoring unit 2 can be installed on one side of the soil layer 100 by embedding, ensuring that the laser direction of the laser head 28 is on the same vertical plane as the soil layer 100, thereby reducing the monitoring deviation of the monitoring device in soil stress deformation. In addition, by providing a cleaning mechanism 27 on the outside of the laser head 28, the laser head 28 enters the cleaning mechanism 27 after each rotation and scan, so that the dust attached to the surface is cleaned by the cleaning mechanism 27 in a timely manner, so as to avoid the dust on the surface of the laser head 28 from hindering the laser emission during the next scan and monitoring.

[0018] As an improvement, such as Figure 4-5 As shown, the monitoring unit 2 further includes: Rotary sleeve 23 is rotatably sleeved on the outside of the main shaft 20, and the laser head 28 is mounted on the outside of the rotating sleeve 23; The first limiting ring 231 and the second limiting ring 232 are respectively fixedly sleeved on the outside of the main shaft 20 and located at both ends of the rotating sleeve 23, for limiting the two ends of the rotating sleeve 23.

[0019] Furthermore, a dust cover 21 is provided on the outer side of the main shaft 20 for isolating and preventing dust from the rotating sleeve 23; One end of the dust cover 21 is fixedly connected to one end of the main shaft 20; A retaining ring 25 is inserted into the inner side of the dust cover 21 and the outer side of the rotating sleeve 23, which is used to cooperate with the dust cover 21 to seal the driving area of ​​the rotating sleeve 23.

[0020] Furthermore, such as Figure 6 As shown, a driven gear 24 is provided on the outer side of the rotating sleeve 23; A drive motor 26 is installed on one side inside the dust cover 21; The drive end of the drive motor 26 is fixedly connected to a drive gear 261 that meshes with the driven gear 24, which is used to adjust the rotation of the rotating sleeve 23. One end of the dust cover 21 is provided with a signal output terminal 22. One end of the line in the signal output terminal 22 is electrically connected to the laser head 28, and the other end is connected to the alarm 221 set on the upper surface of the soil layer 100. When the soil stress deformation monitored by the laser head 28 exceeds the range, the alarm 221 can sound an alarm to prompt the third party to stop construction.

[0021] As an improvement, such as Figure 6-8 As shown, the cleaning mechanism 27 includes: The receiving frame 271 is fixedly connected to the outside of the second limiting ring 232; Wiping groove 272 is provided at the lower end of the receiving frame 271 and is used to wipe and clean the laser head 28; Preferably, the inner wall of the wiping groove 272 is provided with a sponge for wiping the laser head 28.

[0022] Furthermore, the outer side of the soil layer 100 is provided with an insertion hole 101 for accommodating the insertion shaft 11; The housing body is provided with a slot 102 for rotating and locking the buckle 12; The outer side of the soil layer 100 is provided with a countersunk hole 103 extending into the slot 102.

[0023] Furthermore, such as Figure 4-5 As shown, the mounting unit 1 further includes: A threaded hole 121 is provided inside the buckle 12, and the threaded hole 121 is coaxially arranged with the countersunk hole 103; The locking bolt 13 is inserted into the countersunk hole 103 and is threadedly connected to the threaded hole 121 to position the installed insert shaft 11.

[0024] It should be added that the receiving cavity 1001 in this invention is provided in multiple sets at equal intervals inside the soil layer 100 and above the pipe body 104, for monitoring soil stress deformation along the entire length of the pipe body 104.

[0025] It should be noted that: in the specific implementation process of this invention, such as Figure 1-3 , Figure 5 , Figure 9As shown, when installing the monitoring device, the insert shaft 11 is inserted into the socket 101 and then rotated, causing the insert shaft 11 to drive the buckle 12 into the slot 102, so that the threaded hole 121 and the countersunk hole 103 are coaxial. Then, the locking bolt 13 is passed through the countersunk hole 103 and screwed into the threaded hole 121, so that the insert shaft 11 is positioned, and the installation of the monitoring device is completed. By installing the insert shaft 11 in the socket 101 in an embedded manner, the laser head 28 after installation can be aligned with the soil layer 100 on the same vertical plane, avoiding the obstruction caused by the thickness of the insert shaft 11, which would prevent the laser head 28 after installation from being aligned with the soil layer 100 on the same vertical plane. Among them, such as Figure 3-5 As shown, by providing a countersunk hole 103 on the outer side of the locking bolt 13, the locking bolt 13 can be fully embedded into the soil layer 100 after installation, thus avoiding the head of the locking bolt 13 from obstructing the laser head 28 from scanning and monitoring the surface of the soil layer 100, and further improving the accuracy of scanning and monitoring. like Figure 1-4 As shown, when monitoring the stress deformation of the soil layer 100, the drive motor 26 is started. The drive motor 26 drives the rotating sleeve 23 to rotate outside the main shaft 20 through the drive gear 261 and the driven gear 24. The rotating sleeve 23 drives the laser head 28 to rotate one revolution. The laser head 28 scans the stress deformation of the side wall of the soil layer 100. If the deformation of the soil layer 100 is large, the laser emitted by the laser head 28 will be blocked by the side wall of the deformed receiving cavity 1001. At this time, the signal output terminal 22 collects and outputs the abnormal signal, and the alarm 221 sounds an alarm to prompt the surrounding third-party construction to stop. In this invention, a timer is provided on one side of the drive motor 26 to ensure that the drive motor 26 can start and run at regular intervals.

[0026] like Figure 7-8 As shown, the laser head 28 enters the wiping groove 272 and stops after each rotation, until the next scan monitoring when it rotates out of the wiping groove 272 to scan. The sponge in the wiping groove 272 can wipe and clean the dust that falls on the surface of the laser head 28 after each scan, so as to prevent the dust from hindering the laser emission of the laser head 28.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure monitoring device for underground gas pipelines, used to monitor the stress deformation of the soil layer (100) above the pipeline body (104), characterized in that, include: The monitoring unit (2) includes a main shaft (20) installed on one side of the soil layer (100), a laser head (28) located outside the main shaft (20) for monitoring the stress deformation of the soil layer (100), and a cleaning mechanism (27) located outside the laser head (28) for cleaning the laser head (28) after each monitoring. The mounting unit (1) includes an insert shaft (11) located at one end of the main shaft (20) for limiting the main shaft (20) to the side of the soil layer (100), and a buckle (12) is provided on the outside of the insert shaft (11).

2. The pressure monitoring device for underground gas pipelines according to claim 1, characterized in that: The monitoring unit (2) also includes: Rotary sleeve (23) is rotatably sleeved on the outside of the main shaft (20), and the laser head (28) is mounted on the outside of the rotating sleeve (23); The first limiting ring (231) and the second limiting ring (232) are respectively fixedly sleeved on the outside of the main shaft (20) and located at both ends of the rotating sleeve (23) to limit the two ends of the rotating sleeve (23).

3. The pressure monitoring device for underground gas pipelines according to claim 2, characterized in that: The outer side of the main shaft (20) is provided with a dustproof sleeve (21) for isolating and preventing dust from the rotating sleeve (23); One end of the dust cover (21) is fixedly connected to one end of the main shaft (20); A retaining ring (25) is inserted into the inner side of the dust cover (21) and outside the rotating sleeve (23) to cooperate with the dust cover (21) to seal the driving area of ​​the rotating sleeve (23).

4. The pressure monitoring device for underground gas pipelines according to claim 3, characterized in that: The outer side of the rotating sleeve (23) is provided with a driven gear (24); A drive motor (26) is installed on one side inside the dust cover (21); The drive end of the drive motor (26) is fixedly connected to a drive gear (261) that meshes with the driven gear (24) for adjusting the rotation of the rotating sleeve (23).

5. The pressure monitoring device for underground gas pipelines according to claim 2, characterized in that: The cleaning mechanism (27) includes: The receiving frame (271) is fixedly connected to the outside of the second limiting ring (232); A wiping groove (272) is provided at the lower end of the receiving frame (271) for wiping and cleaning the laser head (28).

6. The pressure monitoring device for underground gas pipelines according to claim 1, characterized in that: The outer side of the soil layer (100) is provided with a insertion hole (101) for accommodating the insertion shaft (11); The housing body is provided with a slot (102) for rotating and locking the buckle (12); The outer side of the soil layer (100) is provided with a countersunk hole (103) extending into the slot (102).

7. The pressure monitoring device for underground gas pipelines according to claim 6, characterized in that: The mounting unit (1) further includes: A threaded hole (121) is provided inside the buckle (12), and the threaded hole (121) is coaxially arranged with the countersunk hole (103); A locking bolt (13) is inserted into the countersunk hole (103). The locking bolt (13) is threadedly connected to the threaded hole (121) and is used to position the installed insert shaft (11).

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