A sensor installation and recovery device, system and installation method and use method thereof

Abstract

This invention discloses a sensor installation and retrieval device, system, and installation and usage method. The device includes an outer fixator, an inner fixator, and a sensor fixator. The outer fixator has connecting bolts on its bottom periphery for connection to a waveguide rod. The inner fixator is embedded within the outer fixator. The inner fixator has a central opening for placing the sensor and the sensor fixator. The sensor fixator is located at one end of the sensor, and the sensor's data cable passes through the through-hole of the sensor fixator. The other end of the sensor is fitted to the bottom of the inner fixator. The outer wall of the sensor fixator has external threads, and the inner wall of the inner fixator has internal threads. An auxiliary component is located at the end of the sensor fixator opposite to the sensor. This auxiliary component serves as a fulcrum for unscrewing the sensor fixator from the inner fixator during sensor retrieval. Using this device enables rapid and convenient sensor installation and retrieval, significantly reducing costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of sensor installation and recovery, and in particular relates to a sensor installation and recovery device, system, and installation method and use method thereof. Background Art

[0002] As the mines gradually go deeper, high geostress, high temperature, high osmotic pressure and strong mining disturbance phenomena in the deep areas gradually emerge, leading to an increasing number of disasters, such as rock bursts and rock burst disasters, which cause increasingly serious production safety problems. Therefore, the establishment of a microseismic monitoring system can grasp the general distribution law of the three-dimensional geostress field in the monitoring area. According to the spatiotemporal evolution law of microseismic event parameters, the corresponding high stress prevention and control methods can be applied to reduce the occurrence of deep disasters and accidents, ensure production safety, improve efficiency and stabilize production increase.

[0003] The event parameters obtained by the microseismic monitoring system are obtained by microseismic sensors. Each microseismic sensor needs to be firmly fixed in a pre-drilled hole to monitor microseismic events within a certain range. This process is often irreversible. When the monitoring area needs to be replaced, new microseismic sensors need to be purchased again. A set of microseismic monitoring systems uses at least four microseismic sensors, which causes a sharp increase in costs. Therefore, it is extremely necessary to develop a device that can quickly and easily install and recover sensors, especially for the installation and recovery of microseismic sensors used in the mining field. Summary of the invention

[0004] The purpose of the present invention is to provide a sensor installation and recovery device, system and installation method and use method thereof, wherein the device can realize fast and convenient installation of sensors, and in particular, can also realize sensor recovery. For microseismic sensors in the mining field, the device can greatly save costs.

[0005] On the one hand, the present invention provides a sensor installation and recovery device, comprising: an external fixer, an internal fixer and a sensor fixer, wherein the internal fixer is embedded in the external fixer; a hole is opened in the middle of the internal fixer for placing a sensor and a sensor fixer, the sensor fixer is arranged at one end of the sensor, a data line of the sensor passes through the through hole of the sensor fixer, and the other end of the sensor is fitted with the bottom of the internal fixer; a connecting bolt is arranged on the periphery of the bottom of the external fixer for connecting with a waveguide rod;

[0006] The outer wall of the sensor holder is provided with an external thread, the inner wall of the inner holder is provided with an internal thread, and an auxiliary part is provided on the end of the sensor holder away from the sensor. The auxiliary part is used as a force fulcrum to unscrew the sensor holder from the inner holder when recovering the sensor.

[0007] In the device of the present invention, the external fixator and the internal fixator are used to provide dual protection for the sensor, and in particular, the external fixator plays a role in preventing impact.

[0008] Optionally, a blocking member is provided on the outer wall of the inner fixator and a chisel is opened on the outer wall corresponding to the position of the blocking member, the connecting end of the blocking member and the inner fixator is a rotating shaft, and a spring is provided between the blocking member and the inner fixator.

[0009] Optionally, an opening matching the shape of the resistance component is provided on the inner wall of the external fixator at a position corresponding to the resistance component.

[0010] Based on the above structure, the blocking member can rotate around the rotation axis within a certain range, making the process of installing the internal fixator to the external fixator smoother and more convenient; at the same time, the opening on the inner wall of the external fixator is used to stably embed the internal fixator into the external fixator.

[0011] Optionally, the number of the resistance components is greater than or equal to 6. The number of the resistance components can be adaptively adjusted according to the size of the device and actual needs.

[0012] Optionally, a wave spring and a pre-tightening structure are provided on the inner side of the bottom of the external fixator, and the pre-tightening structure is in contact with the bottom of the internal fixator.

[0013] Optionally, the auxiliary part is a hexagonal nut. When the hexagonal nut is used as the auxiliary part, when the sensor is recovered, the inner hexagonal tube can be used to rotate in coordination with the hexagonal nut to remove the sensor holder.

[0014] Optionally, the sensor is a microseismic sensor. Preferably, the above device is used for the installation and recovery of the microseismic sensor, and it should be understood that sensors used for collecting wave signals in other geological structures are also suitable for the above installation and recovery device.

[0015] On the second aspect, the present invention also provides a system based on the above-mentioned sensor installation and recovery device, comprising the sensor installation and recovery device and a sensor, wherein the sensor is arranged in an internal fixator of the sensor installation and recovery device.

[0016] In a third aspect, the present invention further provides an installation method based on the above sensor installation and recovery device, comprising the following steps:

[0017] Put the sensor into the inner fixture of the sensor installation and recovery device and put on the gasket, then screw the sensor fixture into the inner fixture through the cooperation of the inner bolt of the inner fixture and the outer thread of the sensor fixture so that the sensor fits with the bottom of the inner fixture;

[0018] Inserting the internal fixator into the external fixator so that the internal fixator and the external fixator fit together;

[0019] Fix the external fixator at the test point.

[0020] In a fourth aspect, the present invention further provides a recovery method based on the above sensor installation and recovery device, comprising the following steps:

[0021] Use the auxiliary part as a fulcrum to apply force, and use the inner bolt of the inner fixer and the outer thread of the sensor fixer to unscrew the sensor fixer from the inner fixer;

[0022] Then take out the sensor for recycling.

[0023] Beneficial Effects

[0024] 1. The present invention provides a sensor installation and recovery device, which uses an external fixer, an internal fixer and a sensor fixer to fix the sensor in the internal fixer. On the one hand, the internal and external fixers are used to provide dual protection for the sensor, effectively preventing deformation caused by impact interference; on the other hand, the sensor is recovered by using the cooperation of the internal bolt and the external thread of the sensor fixer, which can save resources and reduce costs.

[0025] 2. In a further preferred embodiment of the present invention, a blocking member is provided on the outer wall of the internal fixator and a corresponding opening is provided on the inner wall of the external fixator, and the blocking member can rotate around the rotation axis within a certain range, thereby facilitating the process of installing the internal fixator to the external fixator, and the installation is smoother and more convenient; at the same time, the opening on the inner wall of the external fixator is utilized to enable the internal fixator to be stably embedded in the external fixator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 This is a bottom view of the external fixator.

[0028] Figure 3 This is the appearance diagram of the internal fixator.

[0029] Figure 4 is a schematic diagram of the sensor holder.

[0030] In the figure: 1 external fixer; 1-1 connecting bolt; 1-2 wave spring; 1-3 pre-tightening structure; 1-4 inner wall slot; 2 internal fixer; 2-1 resistance component; 2-2 rotating shaft; 2-3 spring; 2-4 internal thread; 3 sensor; 4 gasket; 5 sensor fixer; 5-1 hexagonal nut; 5-2 external thread; 6 data cable. DETAILED DESCRIPTION

[0031] The present invention provides a sensor installation and recovery device for realizing the installation and recovery of sensors. In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation plans. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] This embodiment is described by taking a microseismic sensor as an example. Figure 1 As shown, the sensor installation and recovery device provided in this embodiment is composed of an external fixer 1, an internal fixer 2 and a sensor fixer 5. The microseismic sensor and the sensor fixer 5 are arranged in the internal fixer 2, and the internal fixer 2 is embedded in the external fixer 1.

[0034] The outer side of the bottom of the external fixer 1 is provided with a connecting bolt 1-1, which is connected to the waveguide rod to realize signal transmission. The inner side of the bottom of the external fixer 1 is provided with a wave spring 1-2 and a pre-tightening structure 1-3, wherein the wave spring 1-2 and the pre-tightening structure 1-3 are connected. The external fixer 1 has an internal opening for accommodating the internal fixer 2. Among them, an opening matching the shape and size of the resistance component 2-1 on the internal fixer 2 is provided on the inner wall of the external fixer 1, so that when the internal fixer 2 is pushed into the external fixer 1, the resistance component 2-1 on the internal fixer 2 is embedded in the corresponding opening of the external fixer 1.

[0035] A plurality of resistance components 2-1 are arranged on the outer wall of the inner fixer 2. The resistance components 2-1 are connected to the outer wall of the inner fixer 2 via a rotating shaft 2-2. A chisel is provided on the outer wall of the resistance component 2-1 corresponding to the position of the resistance component 2-1. The chisel matches the shape and size of the resistance component 2-1, so that the resistance component 2-1 can rotate around the rotating shaft 2-2 within a certain range. In order to make the resistance component 2-1 have good recovery performance, a spring 2-3 is arranged between the resistance component 2-1 and the inner fixer 2. Figure 1 As shown, in this embodiment, 6 blocking members 2-1 are provided and the blocking members 2-1 are selected to be triangular. In other feasible embodiments, the number and shape of the blocking members 2-1 can be adaptively adjusted, for example, 12, and the present invention does not specifically limit this. When the internal fixer 2 is pushed into the external fixer 1, the blocking members 2-1 of the internal fixer 2 are embedded in the corresponding opening of the external fixer 1, and the bottom of the internal fixer 2 is tightly fitted with the pre-tightening structure 1-3 of the external fixer 1.

[0036] The inner fixator 2 has a hole in the middle for placing the microseismic sensor and the sensor holder 5. In order to achieve quick installation and subsequent recovery, the inner wall of the inner fixator 2 is provided with internal threads 2-4. Figure 1 As shown, in this embodiment, an internal thread 2-4 is provided at the lower part of the inner wall, and the range of the internal thread 2-4 should be determined according to the position of the sensor and the sensor holder 5, and the basic requirements are: to satisfy the sensor holder 5 to push the sensor until the sensor and the internal holder 2 are tightly fitted; and to unscrew the sensor holder 5 from the internal holder 2.

[0037] The outer wall of the sensor holder 5 is provided with an external thread 5-2, and the external thread 5-2 matches the internal thread 2-4. The sensor holder 5 is installed at one end of the sensor, and is used to fix the sensor so that the sensor fits tightly with the internal holder 2. The end of the sensor holder 5 away from the sensor is provided with a hexagonal nut 5-1, and the hexagonal nut 5-1 is used to recycle the sensor. The internal hexagonal tube is fitted with the hexagonal nut 5-1 of the sensor holder 5, and the sensor holder 5 is rotated to take out, thereby completing the recovery of the sensor.

[0038] The data line of the sensor passes through the through hole of the sensor holder 5 and is generally connected to a signal collector.

[0039] It should be understood that the sensor can be quickly installed using the above structure, and the sensor is doubly protected by the above internal and external fixers. This embodiment is a preferred solution, and the resistance component 2-1 provided therein can make the installation process smoother. In other feasible embodiments, it is not specifically limited.

[0040] Embodiment 2:

[0041] Based on the above sensor installation and recovery device, the present invention also provides a sensor installation and recovery system, which includes: a sensor installation and recovery device and a sensor, wherein the sensor is arranged in an internal fixture in the sensor installation and recovery device. For the specific structure and connection relationship, please refer to the relevant description of the above embodiment 1.

[0042] Embodiment 3:

[0043] The sensor installation and recovery device provided by the present invention and the installation method thereof include the following steps:

[0044] a. Place the microseismic sensor into the inner fixture 2, put on the gasket 4, and then screw the sensor fixture 5 into the inner fixture 2 through the internal thread 2-4 and the external thread 5-2, so that the sensor fits completely with the bottom of the inner fixture 2;

[0045] b. Insert the internal fixator 2 into the external fixator 1 so that the bottom of the internal fixator 2 fits tightly with the pre-tightening structure 1-3, completing the installation of the internal fixator 2 and the external fixator 1;

[0046] c. Screw the installed external fixator 1 into the grouted waveguide rod through the connecting bolt 1-1 to complete the final installation.

[0047] Specifically, the sensor layout points were designed according to the monitoring plan, four holes with a diameter of about 60 mm were drilled on both sides of the tunnel, and the waveguide rods were inserted into the holes and grouting was carried out.

[0048] In this embodiment, the microseismic sensor is installed in the device of the present invention according to the above steps ac. In other feasible embodiments, the above steps ac can be adaptively adjusted. For example, executing b first and then executing a can also meet the basic requirements and concepts of the present invention.

[0049] Embodiment 4:

[0050] The sensor installation and recovery device and the recovery method provided by the present invention include the following steps:

[0051] a. Rotate and separate the external fixator 1 from the waveguide rod;

[0052] b. Fit the hexagonal tube to the hexagonal nut 5-1 of the sensor holder 5, and then screw the sensor holder 5 out of the inner holder 2 through the inner thread 2-4 and the outer thread 5-2, thereby completing the recovery of the sensor.

[0053] It should be understood that Examples 3-4 are elaborations based on the device structure described in Example 1. When the present invention makes adaptive adjustments to the structure of the sensor installation and recovery device, its installation method and recovery method are also adaptively adjusted. In summary, the sensor installation and recovery device provided by the present invention effectively realizes the rapid installation and convenient recovery of microseismic sensors, effectively reduces the inspection cost, and has broad application prospects.

[0054] It should be emphasized that the examples described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the examples described in the specific embodiments. Any other embodiments derived by those skilled in the art based on the technical solution of the present invention that do not depart from the purpose and scope of the present invention, whether modified or replaced, also fall within the scope of protection of the present invention.

Claims

1. A sensor installation and recovery device, characterized in that: include: An external fixer, an internal fixer and a sensor fixer, wherein the outer periphery of the bottom of the external fixer is provided with connecting bolts for connecting with the waveguide rod; The inner fixer is embedded in the outer fixer; a hole is opened in the middle of the inner fixer for placing a sensor and a sensor fixer, the sensor fixer is arranged at one end of the sensor, a data line of the sensor passes through the through hole of the sensor fixer, and the other end of the sensor is attached to the bottom of the inner fixer; The outer wall of the sensor holder is provided with an external thread, the inner wall of the inner holder is provided with an internal thread, and an auxiliary piece is provided at one end of the sensor holder away from the sensor, and the auxiliary piece is used as a force fulcrum to screw the sensor holder out of the inner holder when the sensor is recovered; A blocking member is arranged on the outer wall of the inner fixer and a chisel is provided on the outer wall corresponding to the position of the blocking member. The connecting end of the blocking member and the inner fixer is a rotating shaft. A spring is arranged between the blocking member and the inner fixer.

2. The device according to claim 1, characterized in that: An opening matching the shape of the resistance component is provided on the inner wall of the external fixator at a position corresponding to the resistance component.

3. The device according to claim 1, characterized in that: The number of the resistance components is greater than or equal to 6.

4. The device according to claim 1, characterized in that: A wave spring and a pre-tightening structure are arranged on the inner side of the bottom of the external fixator, and the pre-tightening structure is fitted with the bottom of the internal fixator.

5. The device according to claim 1, characterized in that: The auxiliary part is a hexagonal nut.

6. The device according to claim 1, characterized in that: The sensor is a microseismic sensor.

7. A system based on the device according to any one of claims 1 to 6, characterized in that: The device comprises the sensor installation and recovery device and a sensor, wherein the sensor is arranged in an inner fixer of the sensor installation and recovery device.

8. A method for installing the device according to any one of claims 1 to 6, characterized in that: The steps include: Put the sensor into the inner fixture of the sensor installation and recovery device and put on the gasket, then screw the sensor fixture into the inner fixture through the cooperation of the inner bolt of the inner fixture and the outer thread of the sensor fixture so that the sensor fits with the bottom of the inner fixture; Inserting the internal fixator into the external fixator so that the internal fixator and the external fixator fit together; Fix the external fixator at the test point.

9. A recycling method based on the device according to any one of claims 1 to 6, characterized in that: The steps include: Use the auxiliary part as a fulcrum to apply force, and use the inner bolt of the inner fixer and the outer thread of the sensor fixer to unscrew the sensor fixer from the inner fixer; Then take out the sensor for recycling.

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