A vibration control device for blasting when tunnels pass under adjacent natural gas pipelines

Abstract

This utility model relates to the technical field of pipeline vibration damping equipment, and in particular to a device for controlling blasting vibration when a tunnel passes under an adjacent natural gas pipeline. The technical solution includes a base plate and a natural gas pipeline body. An upper clamping plate and a lower clamping plate are provided directly above the base plate to fix the natural gas pipeline body, and a pair of vertical plates are also included at the bottom of the upper clamping plate. This utility model utilizes the cooperation of components such as the base plate, base block, vertical plates, and buffer mechanism. When using the device, the base plate is first fixed through mounting holes, and then the upper and lower clamping plates are used to fix the pipeline using a connecting plate, a second bolt, and a nut. The vertical plates and base block are detachably connected via sliding grooves and a first bolt. When blasting vibration occurs, the vibration sensor transmits a signal to the controller. The controller drives a hydraulic damping shock absorber to absorb the vibration energy. Simultaneously, the insertion rod acts as a limit, and the return spring enhances overall stability, thereby avoiding the risks of resonance, component damage, and leakage caused by rigid connections.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline vibration reduction equipment, and in particular to a device for controlling the blasting vibration of a tunnel passing under an adjacent natural gas pipeline. Background Technology

[0002] By using tunnels, natural gas pipelines can operate more concealed and safely, while also facilitating maintenance and replacement. However, traditional natural gas pipelines in tunnels are often rigidly installed without buffer mechanisms. In this installation method, the pipeline and supports are forcibly rigidly connected by bolts and pipe clamps, leaving almost no space for relative displacement. When a blast occurs in the vicinity, the intense impact force is directly transmitted to the connection between the pipeline and the supports. If the vibration frequency is close to the natural frequency of the pipeline, resonance can easily occur, leading to bolt breakage, pipe clamp deformation, and even wear and thinning of the pipe wall at the contact point between the pipeline and the supports due to repeated impacts. At the same time, the alternating stress generated by the vibration can cause fatigue cracking at pipeline weld joints (such as at pipeline segment welds), ultimately resulting in high-pressure natural gas leakage and posing a serious risk of explosion or poisoning. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a vibration control device for blasting when a tunnel passes under an adjacent natural gas pipeline.

[0004] The technical solution of this utility model is as follows: a vibration control device for blasting when a tunnel passes under an adjacent natural gas pipeline, comprising a base plate and a natural gas pipeline body. An upper clamping plate and a lower clamping plate are provided directly above the base plate to fix the natural gas pipeline body. The device also includes: a pair of vertical plates located at the bottom of the upper clamping plate; a bottom block is fixedly connected to the upper surface of the base plate and holds the bottom of the vertical plates; the upper surface of the bottom block is provided with a buffer mechanism; and a connecting mechanism is provided on the vertical plates and the bottom block, which is used to separate the vertical plates and the bottom block.

[0005] Optionally, the buffer mechanism includes a horizontal plate fixedly connected to the middle of a pair of vertical plates. A plurality of hydraulic damping shock absorbers are fixedly connected to the upper surface of the base block. The top of the hydraulic damping shock absorbers is used to abut against the lower surface of the horizontal plate. A controller and a vibration sensor are provided on the horizontal plate. The output end of the controller is electrically connected to the plurality of hydraulic damping shock absorbers, and the input end of the controller is electrically connected to the vibration sensor.

[0006] Optionally, a rod is fixedly connected to the upper surface of the middle part of the base block, and the top end of the rod movably penetrates through the horizontal plate.

[0007] Optionally, the connecting mechanism includes a sliding groove formed at the bottom end of the vertical plate to hold the bottom block, both ends of the bottom block are fixedly connected to a convex plate, the middle of the convex plate is provided with a spiral hole, the bottom end of the vertical plate is provided with a limit hole, and the inside of the spiral hole is spirally connected to a first bolt whose end is inserted into the corresponding limit hole.

[0008] Optionally, both ends of the upper and lower clamping plates are fixedly connected to connecting plates, and each pair of upper and lower opposing connecting plates is provided with a second bolt, the top of which is screwed with a nut.

[0009] Optionally, mounting holes are provided at both ends of the base plate.

[0010] Optionally, a return spring is fixedly connected inside each of the sliding slots, and the bottom end of each return spring is fixedly connected to the upper surface of the base block.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] This utility model utilizes a base plate, base block, vertical plate, and buffer mechanism to work together. When using the device, the base plate is first fixed through the mounting holes. Then, the connecting plate, second bolt, and nut are used to secure the pipe to the upper and lower clamping plates. The vertical plate and base block are detachably connected via a sliding groove and first bolt. When encountering explosive vibrations, the vibration sensor transmits a signal to the controller. The controller drives a hydraulic damping shock absorber to absorb the vibration energy. Simultaneously, the insertion rod acts as a limit, and the return spring enhances overall stability, thereby avoiding the risks of resonance, component damage, and leakage caused by rigid connections. Attached Figure Description

[0013] Figure 1 A structural schematic diagram of a blasting vibration control device for tunnels passing under adjacent natural gas pipelines according to this utility model is provided.

[0014] Figure 2 for Figure 1 Partial structural diagram;

[0015] Figure 3 for Figure 2 A schematic diagram of the split structure.

[0016] Reference numerals: 1. Base plate; 11. Base block; 12. Protruding plate; 13. Spiral hole; 14. First bolt; 15. Insert rod; 16. Return spring; 17. Mounting hole; 2. Hydraulic damping shock absorber; 3. Upper clamping plate; 4. Natural gas pipeline body; 5. Lower clamping plate; 351. Connecting plate; 352. Second bolt; 353. Nut; 6. Vertical plate; 61. Limiting perforation; 62. Horizontal plate; 63. Controller; 64. Vibration sensor; 65. Sliding groove. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] 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., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a 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 a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0023] Example

[0024] like Figures 1 to 3 As shown, this utility model proposes a blasting vibration control device for tunnels passing under adjacent natural gas pipelines. It includes a base plate 1 and a natural gas pipeline body 4. Mounting holes 17 are provided at both ends of the base plate 1 for fixing the base plate 1 and installing the device in a designated position. An upper clamping plate 3 and a lower clamping plate 5 are provided directly above the base plate 1 to fix the natural gas pipeline body 4. The upper clamping plate 3 and the lower clamping plate 5 cooperate to fix the natural gas pipeline body 4. A vertical plate 6 is connected to the bottom. The lower clamping plate 5 cooperates with the upper clamping plate 3, and the natural gas pipeline body 4 is fixed by a connecting plate 351, a second bolt 352, and a nut 353.

[0025] Among them, such as Figures 1 to 3 As shown, both ends of the upper clamping plate 3 and the lower clamping plate 5 are fixedly connected to connecting plates 351. Each pair of upper and lower opposing connecting plates 351 is provided with a second bolt 352. The top of the second bolt 352 is screwed with a nut 353. The bottom of the upper clamping plate 3 is provided with a pair of vertical plates 6. The upper surface of the bottom plate 1 is fixedly connected to a bottom block 11 that holds the bottom of the vertical plate 6. The middle upper surface of the bottom block 11 is fixedly connected to a rod 15. The rod 15 is fixed to the middle upper surface of the bottom block 11, and its top end moves through the horizontal plate 62, limiting the vertical movement of the device. The top end of the rod 15 moves through the horizontal plate 62. The horizontal plate 62 is fixed in the middle of the pair of vertical plates 6, carrying the controller 63 and the vibration sensor 64, and is in contact with the top of the hydraulic damping shock absorber 2.

[0026] Secondly, such as Figures 1 to 3 As shown, the upper surface of the base block 11 is provided with a buffer mechanism, which includes a horizontal plate 62 fixedly connected to the middle of a pair of vertical plates 6. Multiple hydraulic damping shock absorbers 2 are fixedly connected to the upper surface of the base block 11. The hydraulic damping shock absorbers 2 are fixed to the upper surface of the base block 11, with their tops abutting against the horizontal plate 62, absorbing vibration energy through damping. The hydraulic damping shock absorber 2 relies on the flow of hydraulic oil within the damping structure to generate resistance, consuming vibration energy and achieving vibration reduction. It consists of a cylinder, piston, piston rod, and hydraulic oil. During vibration, the piston rod drives the piston to move, forcing the hydraulic oil through the damping valve, forming a damping force related to the vibration speed, converting kinetic energy into heat energy for dissipation. It is widely used in vehicles and equipment. The top of the hydraulic damping shock absorber 2 is used to abut against the lower surface of the horizontal plate 62. The horizontal plate 62 is provided with a controller 63 and a vibration sensor 64. The vibration sensor 64 is located on the horizontal plate 62, sensing the explosive vibration and transmitting the signal to the controller 63. The vibration sensor 64 is a device that converts mechanical vibration signals (such as displacement, velocity, and acceleration) into electrical signals (voltage or current), enabling the detection, measurement, and analysis of vibrations. The output of the controller 63 is electrically connected to multiple hydraulic damping shock absorbers 2, and the input of the controller 63 is electrically connected to the vibration sensor 64.

[0027] In addition, such as Figures 1 to 3As shown, the vertical plate 6 and the base block 11 are provided with a connecting mechanism. The connecting mechanism is used to separate the vertical plate 6 and the base block 11. The connecting mechanism includes a sliding groove 65 formed at the bottom end of the vertical plate 6 to hold the base block 11. The sliding groove 65 is formed at the bottom end of the vertical plate 6 and holds the base block 11, realizing the engagement connection between the vertical plate 6 and the base block 11. A return spring 16 is fixedly connected inside the sliding groove 65. The return spring 16 is connected between the inside of the sliding groove 65 and the upper surface of the base block 11 to enhance the stability of the connection between the vertical plate 6 and the base block 11. The bottom end of the return spring 16 is fixedly connected to the upper surface of the base block 11. A protruding plate 12 is fixedly connected to both ends of the base block 11. The protruding plate 12 is fixed at both ends of the base block 11 and has a spiral hole 13 to provide a connection position for the first bolt 14.

[0028] It is worth noting that, such as Figures 1 to 3 As shown, a spiral hole 13 is provided in the middle of the convex plate 12, which is used for the first bolt 14 to be spirally connected and fixed to the vertical plate 6. Each bottom end of the vertical plate 6 has a limiting hole 61, which is used for the insertion of the end of the first bolt 14 to fix the vertical plate 6 to the base block 11. The spiral hole 13 is internally connected to a first bolt 14, the end of which is inserted into the corresponding limiting hole 61, thus fixing the vertical plate 6 to the base block 11.

[0029] In this embodiment, when using the blasting vibration control device for tunneling under an adjacent natural gas pipeline, the device is first fixed through the mounting holes 17 of the base plate 1. The natural gas pipeline body 4 is placed between the upper clamping plate 3 and the lower clamping plate 5, and then the pipeline is clamped and fixed through the connecting plate 351, the second bolt 352, and the nut 353. The bottom of the vertical plate 6 engages with the base block 11 through the sliding groove 65. The first bolt 14 on the protruding plate 12 passes through the spiral hole 13 and is screwed into the limiting through hole 61 of the vertical plate 6, realizing the detachable connection between the vertical plate 6 and the base block 11. At the same time, the return spring 16 enhances the connection stability.

[0030] When the blast generates vibration, the vibration sensor 64 detects the vibration and transmits the signal to the controller 63 on the horizontal plate 62. The controller 63 drives the hydraulic damping vibration absorber 2 on the base block 11 to work. Its top end abuts against the horizontal plate 62 and absorbs the vibration energy through its own damping effect. The insertion rod 15 passes through from the base block 11 to the horizontal plate 62, limiting the direction of the device's vertical movement. Together with the hydraulic damping vibration absorber 2, it reduces the displacement of the pipeline caused by vibration, avoids component damage caused by rigid collisions, and thus protects the natural gas pipeline body 4 from the impact of blast vibration.

[0031] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tunneling under a nearby natural gas pipeline blasting vibration control device, comprising a bottom plate (1) and a natural gas pipeline body (4), an upper clamping plate (3) and a lower clamping plate (5) for fixing the natural gas pipeline body (4) are arranged above the bottom plate (1), characterized in that, Also includes: A pair of vertical plates (6) located at the bottom of the upper clamping plate (3), and a bottom block (11) fixedly connected to the upper surface of the bottom plate (1) to hold the bottom of the vertical plate (6), and a buffer mechanism is provided on the upper surface of the bottom block (11); A connecting mechanism is provided on the vertical plate (6) and the bottom block (11), the connecting mechanism being used to separate the vertical plate (6) and the bottom block (11).

2. The tunneling under a nearby natural gas pipeline blasting vibration control device according to claim 1, characterized in that, The buffer mechanism includes a horizontal plate (62) fixedly connected to the middle of a pair of vertical plates (6). Multiple hydraulic damping shock absorbers (2) are fixedly connected to the upper surface of the bottom block (11). The top of the hydraulic damping shock absorber (2) is used to abut against the lower surface of the horizontal plate (62). A controller (63) and a vibration sensor (64) are provided on the horizontal plate (62). The output end of the controller (63) is electrically connected to the multiple hydraulic damping shock absorbers (2), and the input end of the controller (63) is electrically connected to the vibration sensor (64).

3. The tunneling under a nearby natural gas pipeline blasting vibration control device according to claim 1, characterized in that, A rod (15) is fixedly connected to the upper surface of the middle part of the bottom block (11), and the top end of the rod (15) moves through the horizontal plate (62).

4. The tunneling under a nearby natural gas pipeline blasting vibration control device according to claim 1, characterized in that, The connecting mechanism includes a sliding groove (65) at the bottom end of the vertical plate (6) that holds the bottom block (11). Both ends of the bottom block (11) are fixedly connected to a protruding plate (12). A spiral hole (13) is provided in the middle of the protruding plate (12). A limit hole (61) is provided at the bottom end of the vertical plate (6). The spiral hole (13) is spirally connected to a first bolt (14) whose end is inserted into the corresponding limit hole (61).

5. The tunneling under a nearby natural gas pipeline blasting vibration control device according to claim 1, characterized in that, Both ends of the upper clamping plate (3) and the lower clamping plate (5) are fixedly connected to a connecting plate (351). Each pair of upper and lower opposite connecting plates (351) is provided with a second bolt (352), and the top end of the second bolt (352) is screwed with a nut (353).

6. The tunneling under a nearby natural gas pipeline blasting vibration control device according to claim 1, characterized in that, Mounting holes (17) are provided at both ends of the base plate (1).

7. The tunneling under a nearby gas pipeline blasting vibration control device according to claim 4, characterized in that, Each of the sliding grooves (65) is fixedly connected with a return spring (16), and the bottom end of each return spring (16) is fixedly connected to the upper surface of the bottom block (11).

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