Device for assisting in fixing tunnel blasting top arch vibration monitoring sensor

Abstract

The utility model discloses a device for assisting in fixing a tunnel blasting top arch vibration monitoring sensor, which comprises a frame, a winder, a steel wire with a hook, a circular ring and a tray, the winder is arranged on the side wall of the frame, one end of the steel wire with the hook is connected with the winder, the other end of the steel wire with the hook is connected with the circular ring, and the tray is arranged on the side wall of the frame. The tray is arranged in the frame, the circular ring is arranged on the tray, the tray is used for placing a vibration sensor, a threaded base is arranged at the bottom of the frame, and the threaded base is used for connecting the frame with a telescopic ejector rod and is used for increasing the overall height of the frame so that the frame can make contact with a tunnel top arch needing vibration monitoring. Through structures such as the frame, the winder, the steel wire with the hook and the circular ring, the vibration sensor can be stably fixed at the preset position of the tunnel top arch, and monitoring data errors caused by unstable position or movement of the sensor are avoided.

Description

Technical Field

[0001] The utility model relates to the field of vibration monitoring sensors, in particular to a device for assisting in fixing a tunnel blasting crown vibration monitoring sensor. Background Art

[0002] Tunnel blasting, as an efficient construction method for tunnel excavation, is widely used in key national infrastructure projects such as water conservancy and hydropower, transportation, municipal administration, and mining. To monitor and evaluate the impact of blasting vibration on tunnels, blasting vibration sensors are typically pre-installed before blasting. Blasting vibration monitors collect and analyze vibration data by acquiring vibration signals from the sensors. The tunnel crown, a vulnerable structure after excavation, is crucial to the safety and stability of the entire tunnel construction process. Therefore, monitoring the vibration of the tunnel crown during tunnel blasting has long been a key focus of tunnel blasting vibration monitoring.

[0003] However, the tunnel arch is often located at a high position, and the arch wall of the arch is uneven, which makes the installation of vibration sensors very troublesome. It often requires some machinery or ladders as climbing aids to lift people to the arch before installation. In addition, the traditional method of fixing vibration sensors with quick-setting gypsum is also difficult for suspended burial, and the gypsum is easy to fall before it is completely solidified. Therefore, in some projects, people will arrange tunnel blasting vibration monitoring points on the side walls or the road surface of the tunnel for convenience, without vibration monitoring of the tunnel arch, which will lead to incomplete evaluation of the impact of tunnel blasting vibration. Therefore, it is necessary to develop a device for assisting the fixation of tunnel blasting arch vibration monitoring sensors to improve the efficiency of burying blasting vibration sensors in tunnel blasting arches. Utility Model Content

[0004] The purpose of this utility model is to solve the above technical problems, thereby providing a device for assisting in fixing a tunnel blasting crown arch vibration monitoring sensor;

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model provides a device for assisting in fixing a tunnel blasting crown arch vibration monitoring sensor.

[0007] It includes a frame, a reel, a hooked steel wire, a ring, and a tray. The reel is provided on the side wall of the frame. One end of the hooked steel wire is connected to the reel, and the other end of the hooked steel wire is connected to the ring. The tray is arranged in the frame, and the ring is arranged on the tray. The tray is used to place a vibration sensor. A threaded base is provided at the bottom of the frame. The threaded base is used to connect the frame to a retractable top rod, which is used to raise the overall height of the frame so that it can contact the tunnel top arch required for vibration monitoring.

[0008] Optionally, the circular rings are arranged in at least four groups, and the four groups of circular rings are respectively arranged at the four corners of the tray, and the circular rings are arranged in a one-to-one correspondence with the hooked steel wires.

[0009] Optionally, the circular ring and the tray are configured as an integrally formed structure, or the circular ring is fixedly welded to the tray.

[0010] Optionally, the surface of the tray is provided with anti-slip grooves or an elastic cushion layer to increase the friction between the vibration sensor and the tray, reduce the displacement of the vibration sensor due to vibration during the monitoring process, and improve the accuracy and reliability of the monitoring data.

[0011] Optionally, a protective cover is further provided on the top of the frame, which can cover and protect the tray and the vibration sensor thereon, and prevent debris such as falling rocks and dust in the tunnel from damaging the monitoring equipment.

[0012] Optionally, the threaded base is provided in at least two groups, the threaded base and the frame are provided as an integrally formed structure, or the threaded base is fixedly welded to the frame.

[0013] In summary, the present invention has the following beneficial effects:

[0014] This application uses structures such as a frame, a reel, a hooked steel wire and a ring to stably fix the vibration sensor at a predetermined position on the tunnel top arch, avoiding monitoring data errors caused by unstable or moving sensor positions. The anti-slip texture or elastic pad on the surface of the tray increases the friction between the sensor and the tray, further reducing the displacement of the sensor during the monitoring process, thereby improving the accuracy and reliability of the monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the structure of the utility model.

[0016] Figure 2 This is a top view of the structure of the utility model.

[0017] Description of the accompanying drawings: 1-frame, 2-reel, 3-steel wire with hook, 4-ring, 5-tray, 6-thread base, 7-vibration sensor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example:

[0020] like Figure 1-Figure 2 As shown, the utility model provides a device for assisting in fixing a tunnel blasting crown vibration monitoring sensor.

[0021] It includes a frame 1, a reel 2, a hooked steel wire 3, a ring 4, and a tray 5. The reel 2 is provided on the side wall of the frame 1, one end of the hooked steel wire 3 is connected to the reel 2, and the other end of the hooked steel wire 3 is connected to the ring 4. The tray 5 is arranged in the frame 1, and the ring 4 is arranged on the tray 5. The tray 5 is used to place a vibration sensor 7. A threaded base 6 is provided at the bottom of the frame 1, and the threaded base 6 is used to connect the frame 1 to a retractable top rod, which is used to lift the overall height of the frame 1 so that it can contact the tunnel top arch required for vibration monitoring.

[0022] The circular rings 4 are arranged in at least four groups, and the four groups of circular rings 4 are respectively arranged at the four corners of the tray 5 , and the circular rings 4 are arranged in a one-to-one correspondence with the hooked steel wires 3 .

[0023] The ring 4 and the tray 5 are configured as an integrally formed structure, or the ring 4 is fixedly welded to the tray 5 .

[0024] The surface of the tray 5 is provided with anti-slip patterns or an elastic cushion layer, which is used to increase the friction between the vibration sensor 7 and the tray 5, reduce the displacement of the vibration sensor 7 due to vibration during the monitoring process, and improve the accuracy and reliability of the monitoring data.

[0025] A protective cover is also provided on the top of the frame 1, which can cover and protect the tray 5 and the vibration sensor 7 thereon, and prevent debris such as falling rocks and dust in the tunnel from damaging the monitoring equipment.

[0026] The threaded base 6 is provided in at least two groups, and the threaded base 6 and the frame 1 are provided as an integrally formed structure, or the threaded base 6 is fixedly welded to the frame 1 .

[0027] This application provides a stable support structure through the frame 1. The reel 2 installed on the side wall of the frame 1 can control the extension and retraction of the hooked steel wire 3, thereby adjusting the position of the vibration sensor 7 placed on the ring 4 and the tray 5. The threaded base 6 allows the device to be connected to the retractable top rod to achieve flexible adjustment of the overall height, ensuring that the sensor can accurately contact and be fixed at the predetermined position of the tunnel top arch.

[0028] The tray 5 is designed to place the vibration sensor 7 and is securely suspended or fixed by connecting the rings 4 to the hooked steel wire 3. The number and position of the rings 4, such as four groups of rings 4 arranged at the four corners of the tray 5, ensure the stability and balance of the sensor on the tray 5.

[0029] The anti-slip texture or elastic cushion layer on the surface of the tray 5 increases the friction between the sensor and the tray 5, reducing the sensor displacement caused by vibration during the monitoring process, thereby improving the accuracy and reliability of the monitoring data. At the same time, the setting of the protective cover further protects the sensor from damage by falling rocks, dust and other debris in the tunnel.

[0030] The utility model includes the following steps when in use

[0031] Preparation stage: According to the specific position and height of the tunnel arch, select a suitable retractable top rod and connect it to the threaded base 6 of the device, ensuring that at least two groups of threaded bases 6 are firmly installed on the frame 1 to provide sufficient support force.

[0032] Height adjustment: By adjusting the length of the retractable top rod, the device as a whole is lifted to the required height so that the tray 5 can approach and contact the predetermined monitoring point of the tunnel top arch.

[0033] Sensor installation: Place the vibration sensor 7 on the tray 5, ensuring that its position is stable and will not be easily moved due to vibration.

[0034] Fix the sensor: Use the reel 2 and the hooked steel wire 3 to fix the ring 4 on the tunnel arch. By adjusting the tension and position of the hooked steel wire 3, ensure that the sensor is stably suspended and fits tightly to the surface of the arch.

[0035] Start monitoring: After confirming that the sensor has been stably installed and connected to the monitoring equipment, start vibration monitoring of the tunnel blasting crown arch. During the monitoring process, the sensor status and data accuracy should be checked regularly to ensure the smooth progress of the monitoring work.

[0036] The present application uses structures such as the frame 1, the reel 2, the hooked steel wire 3 and the ring 4 to stably fix the vibration sensor 7 at a predetermined position on the tunnel top arch, thereby avoiding monitoring data errors caused by unstable or moving sensor positions. The anti-slip texture or elastic pad on the surface of the tray 5 increases the friction between the sensor and the tray 5, further reducing the displacement of the sensor during the monitoring process, thereby improving the accuracy and reliability of the monitoring data.

[0037] The design of the protective cover can cover and protect the tray 5 and the vibration sensor 7 thereon, effectively preventing debris such as falling rocks and dust in the tunnel from damaging the monitoring equipment, thereby extending the service life of the equipment.

[0038] The overall structure of the device is stable and can withstand the vibration and impact caused by tunnel blasting, ensuring the safe operation of the monitoring equipment.

[0039] The connection design of the threaded base 6 and the retractable top rod allows the height of the device to be flexibly adjusted, adapting to the monitoring needs of tunnel arches of different heights and simplifying the installation process. The use of the ring 4 and the hooked steel wire 3 makes the fixation of the sensor more convenient and firm, thereby improving the installation efficiency.

[0040] The design of the device takes into account a variety of tunnel environments and monitoring requirements. By adjusting the length of the retractable top rod, the number and position of the rings 4, etc., it can adapt to tunnel arches of different sizes and shapes. The integrated design or fixed welding design of the tray 5 and the rings 4, as well as the setting of anti-slip patterns or elastic pads, enhance the versatility and adaptability of the device, making it suitable for different types of vibration sensors 7 and monitoring scenarios.

[0041] The device has a simple structure and is easy to maintain, reducing the repair and replacement costs caused by equipment failure or damage. The design of the protective cover also reduces the erosion and damage to the equipment by debris, extending the service life of the equipment and further reducing maintenance costs.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for assisting in fixing a tunnel blasting crown vibration monitoring sensor, characterized in that: It includes a frame, a reel, a hooked steel wire, a ring, and a tray. The reel is provided on the side wall of the frame. One end of the hooked steel wire is connected to the reel, and the other end of the hooked steel wire is connected to the ring. The tray is arranged in the frame, and the ring is arranged on the tray. The tray is used to place a vibration sensor. A threaded base is provided at the bottom of the frame. The threaded base is used to connect the frame to a retractable top rod, which is used to raise the overall height of the frame so that it can contact the tunnel top arch required for vibration monitoring.

2. The device for assisting in fixing a tunnel blasting crown vibration monitoring sensor according to claim 1, characterized in that: The circular rings are arranged in at least four groups, and the four groups of circular rings are respectively arranged at the four corners of the tray, and the circular rings are arranged in a one-to-one correspondence with the hooked steel wires.

3. The device for assisting in fixing a tunnel blasting crown vibration monitoring sensor according to claim 1, characterized in that: The circular ring and the tray are configured as an integrally formed structure, or the circular ring is fixedly welded to the tray.

4. The device for assisting in fixing a tunnel blasting crown vibration monitoring sensor according to claim 3, characterized in that: The surface of the tray is provided with anti-slip patterns or an elastic cushion layer, which is used to increase the friction between the vibration sensor and the tray, reduce the displacement of the vibration sensor due to vibration during the monitoring process, and improve the accuracy and reliability of the monitoring data.

5. The device for assisting in fixing a tunnel blasting crown vibration monitoring sensor according to claim 1, characterized in that: A protective cover is also provided on the top of the frame, which can cover and protect the tray and the vibration sensor thereon, and prevent falling rocks and dust in the tunnel from damaging the monitoring equipment.

6. The device for assisting in fixing a tunnel blasting crown vibration monitoring sensor according to claim 1, characterized in that: The threaded base is provided in at least two groups, and the threaded base and the frame are provided as an integrally formed structure, or the threaded base is fixedly welded to the frame.

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