CN209980429U - Detection system for underground collapse of coal mine - Google Patents

Abstract

The embodiment of the utility model discloses detection system of colliery in pit collapse. The detection system includes: the mounting, connecting piece and intelligent extension, intelligent extension is including dividing the casing, the tight ware that rises, pressure sensor and alarm, the hole that is used for the tight ware that rises to shift out is seted up to extension casing lateral wall, the branch casing is arranged in to tight ware and pressure sensor that rises, the alarm setting is at extension casing upper surface, the one end and the mounting of connecting piece link to each other, the other end of connecting piece passes the hole and links to each other with the one end that rises the tight ware, pressure sensor's one end links to each other with the other end that rises the tight ware, pressure sensor's the other end links to each other with the input of alarm, the mounting is used for burying ground under. The embodiment of the utility model provides a technical scheme, each module is simply connected, is convenient for install in the pit in the colliery, realizes the intelligent early warning before the collapse by a wide margin that causes by a small margin collapse, has improved the accuracy that the colliery was collapsed and is detected in the pit.

Description

Detection system for underground collapse of coal mine

Technical Field

The embodiment of the utility model provides a coal mine safety monitoring field especially relates to a colliery is detecting system of side of collapsing in pit.

Background

With the rapid development of national economy, coal mining in underground roadways among workers cannot be separated from energy supply, and at the moment, safety detection of the underground roadways of coal mines, such as underground collapse detection, is particularly important in the coal mining process.

The existing underground collapse detection device for the coal mine is usually connected with various detection modules in the detection device through a large number of communication cables, the detection module is very troublesome to install, detect and maintain, and meanwhile, due to the fact that the environment in an underground roadway of the coal mine is severe, when the communication cables are used for a long time, the communication cables can be broken or damaged, so that the collection and transmission of collapse data of the underground collapse detection device for the coal mine are influenced, and the accuracy of underground collapse detection of the coal mine is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a detection system that colliery was collapsed in pit is convenient for install in the colliery in the pit, improves the accuracy that the collapse detected in the pit.

In a first aspect, an embodiment of the present invention provides a detection system for a coal mine underground collapse, the system includes: the intelligent extension set comprises a sub-shell, a tension device, a pressure sensor and an alarm, wherein a hole for moving out the tension device is formed in the side wall of the sub-shell, the tension device and the pressure sensor are arranged in the sub-shell, the alarm is arranged on the upper surface of the sub-shell, one end of the connecting piece is connected with the fixing piece, the other end of the connecting piece penetrates through the hole to be connected with one end of the tension device, one end of the pressure sensor is connected with the other end of the tension device, the other end of the pressure sensor is connected with the input end of the alarm, the fixing piece is used for being buried into the underground ground of a coal mine, and the sub-shell is used for being embedded into the underground ground of the coal mine;

when the tension device collapses, the tension device is driven by the fixing part to move out of the sub-shell through the connecting part, and if the pressure of the tension device detected by the pressure sensor is greater than a pressure threshold value, an alarm signal is generated and sent to the alarm.

Furthermore, the intelligent extension set also comprises a signal converter, the signal converter is arranged in the extension case, the alarm comprises an audible and visual alarm and a collapse displacement indicating disc, and the other end of the pressure sensor is respectively connected with the audible and visual alarm and the input end of the collapse displacement indicating disc through the signal converter;

and if the pressure of the tensioner detected by the pressure sensor is greater than a pressure threshold value, generating a first alarm signal through the signal converter and sending the first alarm signal to the acousto-optic alarm, and generating a second alarm signal and sending the second alarm signal to the collapse position indicator.

Furthermore, one end of the tension device is provided with a tension clamping piece movably connected with the other end of the connecting piece, and the tension clamping piece controls the connecting piece to move out of the sub-shell under the driving of the fixing piece until the pressure of the tension device detected by the pressure sensor is equal to a pressure threshold value.

Further, the fixing piece is connected with one end of the connecting piece through a self-contained tensioning mechanism.

Further, the intelligent extension further comprises: the battery detection device comprises a first battery detection module and a first low-voltage alarm which are connected, wherein the first battery detection module is arranged in the sub-machine shell, and the first low-voltage alarm is arranged on the surface of the sub-machine shell;

and when the first battery detection module detects that the battery voltage on the intelligent extension is less than or equal to a preset voltage threshold, generating a corresponding first low-voltage alarm signal and sending the first low-voltage alarm signal to the first low-voltage alarm.

Furthermore, the intelligent extension machine further comprises a switch control module connected with the tension device, and when the tension device is driven by the fixing part to move out of the extension case through the connecting part, a switch in the switch control module is triggered to be closed, so that all functional modules in the intelligent extension machine are awakened.

Further, the system for detecting coal mine underground collapse further comprises: the intelligent host is wirelessly connected with the intelligent extension, and is arranged at an underground inlet of the coal mine;

and if the pressure of the tensioner detected by the pressure sensor is greater than a pressure threshold value, generating a third alarm signal through the signal converter and sending the third alarm signal to the intelligent host.

Furthermore, the intelligent host comprises a host shell, and a second battery detection module and a second low-voltage alarm which are connected, wherein the second battery detection module is arranged in the host shell, and the second low-voltage alarm is arranged on the surface of the host shell;

and when the second battery detection module detects that the battery voltage on the intelligent host is less than or equal to a preset voltage threshold, generating a corresponding second low-voltage alarm signal and sending the second low-voltage alarm signal to the second low-voltage alarm.

Furthermore, the intelligent extension set also comprises a first wireless transceiver module connected with the signal converter, and the intelligent extension set also comprises a second wireless transceiver module;

and the first wireless transceiver module sends the third alarm signal generated by the signal converter to the second wireless transceiver module.

Further, the system for detecting coal mine underground collapse further comprises: the ring network switch and the remote industrial personal computer are sequentially connected with the intelligent host, and are arranged on the ground surface outside the coal mine;

and the intelligent host sends the third alarm signal to the remote industrial personal computer through the ring network switch, and the remote industrial personal computer determines corresponding collapse data according to the third alarm signal.

The embodiment of the utility model provides a detection system of colliery collapse in pit, link to each other the mounting with the one end of the tensioner in the intelligent extension through the connecting piece, the other end of tensioner connects gradually pressure sensor and alarm, and bury the mounting in the colliery underground ground, imbed the extension shell of intelligent extension in the colliery underground ground, the tensioner guarantees that the connecting piece is in the tight state that rises at this moment, when the collapse takes place, the tensioner is driven by the mounting through the connecting piece and is shifted out the extension shell, make the pressure of the tensioner that pressure sensor detected be greater than the pressure threshold value, and then generate alarm signal and send the alarm to the alarm and report to the police, each module in this scheme is simply connected, be convenient for install in the colliery underground, need not to correspond each module through a large amount of communication cables, simultaneously because the tensioner has made the connecting piece be in the tight state that rises when installing, even when, the tensioner can be driven by the fixing piece through the connecting piece to generate small-amplitude displacement, so that the pressure sensor detects that the pressure of the tensioner is larger than a pressure threshold value, the alarm is driven to give an alarm, the intelligent early warning before large-amplitude collapse caused by small-amplitude collapse is realized, the accuracy of detecting the underground collapse of the coal mine is improved, casualties and property loss of workers in the coal mine are reduced, and the safety of energy exploitation in the coal mine is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic structural diagram of a system for detecting a coal mine underground collapse according to a first embodiment of the present invention;

fig. 2A is a schematic structural diagram of a system for detecting a coal mine underground collapse, provided by the second embodiment of the present invention;

fig. 2B is a scene schematic diagram of a system for detecting a coal mine underground collapse, provided by the second embodiment of the present invention;

fig. 3A is a schematic structural diagram of a system for detecting a coal mine underground collapse, according to a third embodiment of the present invention;

fig. 3B is an exemplary schematic structural diagram of a system for detecting a coal mine underground collapse, provided by the third embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Example one

Fig. 1 is the embodiment of the utility model provides a pair of detection system's in pit of colliery that provides structural schematic diagram, the detection system of the colliery in pit of providing in this embodiment can be suitable for in the colliery underworkings that is used for exploiting the coal carbon energy. Specifically, referring to fig. 1, the system for detecting a coal mine underground collapse party may include: the fixing part 100, the connecting part 200 and the intelligent extension 300, wherein the intelligent extension 300 can comprise a sub-housing 310, a tensioner 320, a pressure sensor 330 and an alarm 340.

The tensioner 320 and the pressure sensor 330 are arranged in the extension housing 310 of the intelligent extension 300, the alarm 340 is arranged on the upper surface of the extension housing 310 of the intelligent extension 300, meanwhile, a hole 311 for moving out the tensioner 320 is formed in the side wall of the extension housing 310 of the intelligent extension 300, one end of the connecting piece 200 is connected with the fixing piece 100, the other end of the connecting piece 200 penetrates through the hole 311 formed in the side wall of the extension housing 310 to be connected with one end of the tensioner 320, one end of the pressure sensor 330 is connected with the other end of the tensioner 320, and the other end of the pressure sensor 330 is connected with the input end of the alarm 340.

Optionally, when a worker installs the detection system underground the coal mine, the fixing member 100 is used for being buried in the underground ground of the coal mine, and the extension housing 310 of the intelligent extension 300 is used for being embedded in the underground ground of the coal mine; meanwhile, when the tensioner 320 is installed, the connecting piece 200 for connecting the fixing piece 100 and the intelligent extension 300 can be in a proper tensioning state, so that the fixing piece 100, the connecting piece 200 and the intelligent extension 300 are in a straight line after being installed in a coal mine. It should be noted that the fixing element 100, the connecting element 200 and the intelligent extension 300 may be uniformly installed on a roadway end having a collapse possibility in an underground roadway of a coal mine according to a coal mine site environment, that is, the fixing element 100, the connecting element 200 and the intelligent extension 300 may be correspondingly installed at a plurality of collapse prone positions in the underground roadway of the coal mine to detect whether collapse occurs in the section in real time.

For example, in collapse, the tensioner 320 is moved out of the sub-housing 310 by the fixing member 100 through the connecting member 200, and the pressure of the tensioner 320 detected by the pressure sensor 330 is greater than the pressure threshold, so as to generate an alarm signal and send the alarm 340.

Specifically, the fixing member 100 is used to be buried in the underground ground of the coal mine to fix the detected safety rotating position, and in this embodiment, there is no specific requirement on the style of the fixing member 100 as long as the fixing member has a fixing function. Illustratively, the fixing member 100 in this embodiment may be a fixing ring for fixing one end of the connection member 200. In the collapse, the fixing member 100 moves correspondingly along with the collapse direction of the safety rotating position, so that the tensioner 320 is driven by the connecting member 200 to move out of the extension housing 310 of the intelligent extension 300.

Further, the connecting member 200 in this embodiment is a connecting wire made of a material that is not easily broken or damaged, such as a stainless steel connecting wire; illustratively, the stainless steel connecting wire may be a flexible steel wire with a diameter of 1.5mm and a type of 304 stainless steel, which ensures the durability of the connecting member 200 when it is collapsed, and the connecting member is pulled by the tensioner 320 in the fixing member 100 and the intelligent extension 300.

Optionally, the intelligent extension 300 is a data processing device integrated by a plurality of functional modules for detecting collapse in a coal mine, and can analyze specific collapse conditions, acquire corresponding collapse data, and perform collapse alarm. Specifically, the intelligent extension 300 integrates the tensioner 320, the pressure sensor 330 and the alarm 340 into one device through the sub-housing 310, so as to facilitate installation under a coal mine; after one end of the tensioner 320 is connected with the other end of the connecting piece 200, the tensioner can play a role in guiding and tensioning the connecting piece 200, so that the connecting piece 200 is always in a proper tensioning state, at the moment, the tensioner 320 is subjected to pressure for pulling the connecting piece 200 when the connecting piece 200 is in the tensioning state, the pressure reaches a preset pressure threshold value corresponding to the tensioning state, and meanwhile, one end of the tensioner 320 can move along with the pulling force of the connecting piece 200 to ensure that the connecting piece 200 is always in the proper tensioning state; one end of the pressure sensor 330 is connected to the other end of the tensioner 320, and is used for detecting the pressure applied to the tensioner 320 by the pulling of the connecting member 200, and if no collapse occurs, the pressure of the tensioner 320 detected by the pressure sensor 330 is always a preset pressure threshold, when collapse occurs, the fixing element 100 moves downwards along with the collapse, and then the pressure on the tensioner 320 detected by the pressure sensor 330 increases under the pulling of the connecting element 200, and exceeds a preset pressure threshold, at this time, in order to ensure that the connecting element 200 can be in a tensioned state, the fixing element 100 drives one end of the tensioner 320 in the intelligent extension 300 to continuously move out of the hole 311 formed in the side wall of the sub-housing 310 of the intelligent extension 300 through the connecting element 200, the pressure of the tensioner 320 detected by the pressure sensor 330 in the moving process is always greater than a preset pressure threshold value in a proper tensioning state; at this time, the other end of the pressure sensor 330 is connected to an input end of the alarm 340, the alarm 340 in this embodiment may be any type of visual alarm device, audible alarm device, such as a buzzer, a flashlight, etc., and when the detected pressure of the tensioner 320 is greater than the pressure threshold, the pressure sensor 330 generates a corresponding alarm signal and sends the alarm signal to the alarm 340 to alarm.

After all the functional modules in the detection system are connected according to the connection mode, the detection system is installed in a collapse-prone section of a coal mine underground roadway, and then a detailed explanation is given to a concrete detection flow of the coal mine underground collapse:

when the mounting position of the underground coal mine roadway collapses, the fixing piece 100 embedded in the underground coal mine ground is affected by the collapse to perform corresponding displacement, at this time, because the tensioner 320 needs to ensure that the connecting piece 200 is always in a proper tensioning state, when the fixing piece 100 moves in the collapse, one end of the tensioner 320 in the intelligent extension 300 is driven by the connecting piece 200 to continuously move out of the hole 311 formed in the side wall of the sub-housing 310 of the intelligent extension 300, at this time, the pressure sensor 330 connected to the other end of the tensioner 320 detects that the pressure of the tensioner 320 is greater than the pressure threshold value in the tensioning state, a corresponding alarm signal is generated and sent to the alarm 340, the alarm 340 gives an alarm to prompt a worker that the position collapses, and at this time, even if the collapse range is very small, the collapse can be detected according to the displacement of the fixing piece 100, and further, intelligent early warning before large-amplitude collapse caused by small-amplitude collapse is realized, casualties and property losses of underground coal mine workers are reduced, and safety of underground coal mine energy exploitation is improved.

According to the technical scheme provided by the embodiment, the fixing piece is connected with one end of the tension device in the intelligent extension set through the connecting piece, the other end of the tension device is sequentially connected with the pressure sensor and the alarm, the fixing piece is buried in the underground ground of the coal mine, the extension set shell of the intelligent extension set is embedded in the underground ground of the coal mine, the tension device ensures that the connecting piece is in a tension state, when collapse occurs, the tension device is driven by the fixing piece through the connecting piece to move out of the extension set shell, the pressure of the tension device detected by the pressure sensor is larger than a pressure threshold value, an alarm signal is generated and sent to the alarm to give an alarm, all the modules are simply connected in the scheme, the installation under the coal mine is facilitated, all the modules do not need to be correspondingly connected through a large number of communication cables, and because the tension device already enables the connecting piece to be in the tension, and then the pressure sensor detects that the pressure of the tensioner is greater than a pressure threshold value, and drives the alarm to alarm, so that intelligent early warning before large-amplitude collapse caused by small-amplitude collapse is realized, the accuracy of detecting the collapse under the coal mine is improved, casualties and property loss of workers under the coal mine are reduced, and the safety of energy mining under the coal mine is improved.

Example two

Fig. 2A is a schematic structural diagram of a system for detecting a coal mine underground collapse, provided by the embodiment of the present invention. The embodiment is optimized on the basis of the embodiment. Specifically, when the intelligent extension 300 detects a collapse in a coal mine, the intelligent extension further includes other functional modules for assisting in collapse detection, so in this embodiment, the specific functional module for realizing the alarm of the intelligent extension 300 and the connection mode and function of the other functional modules additionally included are further explained.

Optionally, as shown in fig. 2A, the intelligent extension 300 may further include a signal converter 350, the signal converter 350 is disposed in the extension housing 310 of the intelligent extension 300, the alarm 340 may specifically include an audible and visual alarm 341 and a collapse displacement indicating dial 342, and the other end of the pressure sensor 330 is connected to the input ends of the audible and visual alarm 341 and the collapse displacement indicating dial 342 through the signal converter 350.

Specifically, the signal converter 350 is configured to generate a plurality of different alarm signals according to the trigger signal generated by the pressure sensor 330 when the pressure sensor 330 detects that the pressure of the tensioner 320 is greater than the pressure threshold, and send the alarm signals to the corresponding alarm devices; specifically, as shown in fig. 2B, in this embodiment, if the pressure of the tensioner 320 detected by the pressure sensor 330 is greater than the pressure threshold, the trigger signal converter 350 generates two paths of signals, namely a first alarm signal and a second alarm signal, respectively, and sends the first alarm signal to the audible and visual alarm 341, and the audible and visual alarm 341 can send out alarm sound and various lights according to the first alarm signal to prompt the operator in two ways, so as to implement the electromechanical double alarm in the underground coal mine; meanwhile, the second alarm signal is sent to the collapse position indicator 342, the collapse position indicator 342 analyzes data such as the collapse displacement and the collapse speed at this time according to the second alarm signal, and further displays the collapse displacement on the site to the staff in a mechanical manner on the collapse position indicator 342 so as to visually prompt the degree of collapse of the staff at this time.

Further, in this embodiment, when one end of the tensioner 320 is connected to the other end of the connecting member 200, the connecting member 200 may be movably connected to the tensioner 320 to control the connecting member 200 to be capable of moving in the tensioner 320, so as to ensure that the connecting member 200 is always in a proper tensioning state, and at this time, one end of the tensioner 320 may be provided with a tensioning fastener movably connected to the other end of the connecting member 200; in case of collapse, as shown in fig. 2B, the tension latch can release the clamping force on the connecting member 200 to control the connecting member 200 to move out of the extension housing 310 of the smart extension 300 under the driving of the fixing member 100 until the pressure of the tension device 320 detected by the pressure sensor 330 is equal to the pressure threshold, and clamp the connecting member 200 again, so that the connecting member 200 is always in a proper tension state.

Meanwhile, in this embodiment, before the detection system is installed in a coal mine, the fixing member 100 may be connected to one end of the connecting member 200 through the self-provided tensioning mechanism 110, so that the connecting member 200 is in a proper tensioning state under the combined action of the tensioning mechanism 110 and the tensioning fastener.

In addition, because the modules in the intelligent extension 300 need power supply support when working, whether the battery voltage is too low needs to be detected in real time at the moment so as to maintain the battery in time and ensure the normal work of the intelligent extension 300; therefore, the intelligent extension 300 in this embodiment may further include: the first battery detection module 360 and the first low-voltage alarm 370 are connected with each other, and at this time, the first battery detection module 360 is arranged in the extension housing 310 of the intelligent extension 300, is connected with a battery module configured in the intelligent extension 300, and is used for detecting the voltage state of the battery in real time; meanwhile, the first low-voltage alarm 370 is arranged on the surface of the extension shell 310 of the intelligent extension 300, and the first low-voltage alarm 370 and the alarm 340 for detecting collapse are different types of alarms, so that a worker can distinguish whether the current alarm is that the battery voltage is too low or the coal mine underground collapse; when the first battery detection module 360 detects that the battery voltage of the intelligent extension 300 is less than or equal to the preset voltage threshold, a corresponding first low-voltage alarm signal is generated and sent to the first low-voltage alarm 370 for alarming.

Further, in order to improve the working period of the intelligent extension 300, the intelligent extension 300 of this embodiment may further include a switch control module 380 connected to the tensioner 320, a switch in the switch control module 380 is in an on state at ordinary times, so that each other function module in the intelligent extension 300 is in an off state, when collapse occurs, the tensioner 320 is driven by the fixing member 100 through the connecting member 200 to move out of the extension shell 310 of the intelligent extension 300, the switch in the switch control module 380 can be triggered to be closed, and then each function module in the intelligent extension 300 is waken up, at this time, the intelligent extension 300 is always in the off state at ordinary times, only when collapse occurs, the power can be immediately switched on to wake up each function module, and the intelligent extension 300 enters a monitoring state, so that the power consumption of the intelligent extension 300 is greatly reduced, and the working time of the battery is prolonged. At this moment, in order to detect the voltage state of the battery in real time, in this embodiment, the first battery detection module 360 and the first low-voltage alarm 370 in the intelligent extension 300 can be additionally processed, and are not controlled by the switch control module 380, the first battery detection module 360 and the first low-voltage alarm 370 are always in a standby state, and can detect the voltage level of the battery in real time, so that the battery voltage can be timely detected when the battery voltage is too low, and a worker is reminded to maintain, thereby improving the working efficiency of the intelligent extension 300.

According to the technical scheme provided by the embodiment, the fixing piece is connected with one end of the tension device in the intelligent extension set through the connecting piece, the other end of the tension device is sequentially connected with the pressure sensor and the alarm, the fixing piece is buried in the underground ground of the coal mine, the extension set shell of the intelligent extension set is embedded in the underground ground of the coal mine, the tension device ensures that the connecting piece is in a tension state, when collapse occurs, the tension device is driven by the fixing piece through the connecting piece to move out of the extension set shell, the pressure of the tension device detected by the pressure sensor is larger than a pressure threshold value, an alarm signal is generated and sent to the alarm to give an alarm, all the modules are simply connected in the scheme, the installation under the coal mine is facilitated, all the modules do not need to be correspondingly connected through a large number of communication cables, and because the tension device already enables the connecting piece to be in the tension, and then the pressure sensor detects that the pressure of the tensioner is greater than a pressure threshold value, and drives the alarm to alarm, so that intelligent early warning before large-amplitude collapse caused by small-amplitude collapse is realized, the accuracy of detecting the collapse under the coal mine is improved, casualties and property loss of workers under the coal mine are reduced, and the safety of energy mining under the coal mine is improved.

EXAMPLE III

Fig. 3A is a schematic structural diagram of a system for detecting a coal mine underground collapse, provided by the third embodiment of the present invention. The embodiment is optimized on the basis of the embodiment. Specifically, if the fixing member 100, the connecting member 200 and the intelligent extension 300 are installed at a plurality of positions in the underground coal mine field in a unified manner to detect the collapse condition at the field, in order to analyze the collapse condition at each position in a unified manner, the system for detecting the collapse under the coal mine field may further include: the intelligent host 400 is wirelessly connected with the intelligent extension 300, the intelligent host 400 is arranged at an underground entrance of a coal mine at the moment, the pressure of the tensioner 320 detected by the pressure sensor 330 in the intelligent extension 300 is greater than a pressure threshold value at the moment, a third alarm signal can be additionally generated through the signal converter 350 and sent to the intelligent host 400, so that collapse detection data of a plurality of intelligent extensions 300 installed on site can be obtained, and uniform analysis can be performed. The present embodiment mainly explains the connection mode of the smart host 400 and the included functional modules in detail.

Optionally, as shown in fig. 3A, a third alarm signal is transmitted between the intelligent host 400 and the intelligent extension 300 through wireless transmission, at this time, the intelligent extension 300 may further include a first wireless transceiver module 390 connected to the signal converter 350, and the intelligent host 400 may include a second wireless transceiver module 410; the signal converter 350 in the intelligent extension 300 sends the generated third alarm signal to the first wireless transceiver module 390, and the first wireless transceiver module 390 sends the third alarm signal to the second wireless transceiver module 410 in the intelligent host 400, so that the intelligent host 400 can obtain the collapse data of the corresponding position of each intelligent extension 300 according to the third alarm signal.

Optionally, because the modules in the intelligent host 400 also need to be supported by a power supply for working, it is necessary to detect whether the battery voltage is too low in real time at this time, so as to maintain the battery in time and ensure the normal working of the intelligent host 400; therefore, the smart host 400 in this embodiment may further include a host housing 420, and a second battery detection module 430 and a second low voltage alarm 440 connected to each other, where the second battery detection module 430 is disposed in the host housing 420 of the smart host 400, and the second low voltage alarm 440 is disposed on the surface of the host housing 420 of the smart host 400; at this time, the second battery detection module 430 is configured to detect a voltage of a battery configured in the smart host 400, and if it is detected that the voltage of the battery on the smart host 400 is lower than a preset voltage threshold, generate a corresponding second low-voltage alarm signal and send the second low-voltage alarm signal to the second low-voltage alarm 440 for alarming.

Meanwhile, in order to visually display the collapse situation at the installation position of each intelligent extension 300, the system for detecting the underground collapse of the coal mine can further comprise: the ring network switch 500 and the remote industrial personal computer 600 are sequentially connected with the intelligent host 400, and the ring network switch 500 and the remote industrial personal computer 600 are arranged on the ground surface outside the coal mine; managers can directly check collapse conditions at different positions on the remote industrial personal computer 600.

Specifically, the ring network switch 500 and the remote industrial personal computer 600 are ring network hardware parts of the existing industrial automation control or safety monitoring of the mine, and can realize remote transmission of collapse data, in this embodiment, the intelligent host 400 can send a third alarm signal, that is, data acquired on a collapse site, to the remote industrial personal computer 600 through the ring network switch 500, and the remote industrial personal computer 600 processes the third alarm signal through pre-configured data processing software to obtain corresponding collapse data, and stores, analyzes, judges and the like the collapse data on each collapse site on the remote industrial personal computer 600, so as to visually display the collapse situation on each collapse site, thereby reminding the past staff of paying attention to and carrying out dangerous processing before collapse, and further avoiding the collapse accident from causing casualty loss to production and staff.

For example, the overall structure of the detection system for the coal mine underground collapse is explained in the present embodiment, and first, the various labels in fig. 3B are explained: 1-a fixing piece; 2-a connector; 3-intelligent extension; 4-a tensioner; 5-a pressure sensor; 6-fixing a ring of the extension; 7-extension wireless transmission antenna; 8-audible and visual alarm; 9-a first low voltage alarm; 10-an intelligent host; 11-a second low voltage alarm; 12-host wireless transmission antenna; 13-a host fixing ring; 14-host network egress; 15-ring network switch; 16-a remote industrial personal computer; 17-collapse Displacement indicator disk.

Specifically, a corresponding intelligent host 10 is installed at an entrance of the underground coal mine through a host fixing ring 13 by a detection device of an installation site corresponding to a collapse-prone section of a fixing piece 1 and an extension fixing ring 6, the collapse-prone section is used for detecting the collapse situation of the section after the installation is successful, when the collapse happens, the fixing piece 1 is driven by the collapse displacement, a control connecting piece 2 is moved out of a tensioner 4 of an intelligent extension 3, a pressure sensor 5 detects that the pressure of the tensioner 4 is greater than a pressure threshold value, a first alarm signal is generated and sent to an audible and visual alarm 8 for audible and visual alarm, a second alarm signal is generated and sent to a collapse displacement indicating disc 17 to display the collapse displacement at this time, a third alarm signal is generated and sent to a host wireless transmission antenna 12 through an extension wireless transmission antenna 7, the intelligent host 10 sends the third alarm signal to a ring network switch 15 through a host network outlet 14, and the ring network switch 15 sends the collapse data to the remote industrial personal computer 16, and the remote industrial personal computer 16 stores, analyzes and judges the collapse data of each collapse site so as to visually display the collapse condition of each collapse site.

According to the technical scheme provided by the embodiment, when collapse occurs, the tensioner is driven by the fixing piece to move out of the sub-shell through the connecting piece, so that the pressure of the tensioner detected by the pressure sensor is larger than a pressure threshold value, an alarm signal is generated and sent to the alarm, meanwhile, a corresponding alarm signal is sent to the intelligent host, further, the intelligent host is sent to the remote industrial personal computer through the ring network switch, the remote industrial personal computer is used for storing, analyzing, judging and the like the collapse data of each collapse site, so that the collapse condition of each collapse site is visually displayed, the modules in the scheme are simply connected, the installation under a coal mine is facilitated, the modules are not required to be correspondingly connected through a large number of communication cables, and meanwhile, because the connecting piece is already in a tensioning state by the tensioner when the installation is carried out, even if the collapse is small, the tensioner can be driven by the fixing piece to generate small, and then the pressure sensor detects that the pressure of the tensioner is greater than a pressure threshold value, and drives the alarm to alarm, so that intelligent early warning before large-amplitude collapse caused by small-amplitude collapse is realized, the accuracy of underground collapse detection of the coal mine is improved, and meanwhile, collapse data of each collapse site is stored and analyzed, so that casualties and property loss of underground workers of the coal mine are reduced, and the safety of underground energy exploitation of the coal mine is improved.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A detection system for underground collapse of a coal mine is characterized by comprising: the intelligent extension set comprises a sub-shell, a tension device, a pressure sensor and an alarm, wherein a hole for moving out the tension device is formed in the side wall of the sub-shell, the tension device and the pressure sensor are arranged in the sub-shell, the alarm is arranged on the upper surface of the sub-shell, one end of the connecting piece is connected with the fixing piece, the other end of the connecting piece penetrates through the hole to be connected with one end of the tension device, one end of the pressure sensor is connected with the other end of the tension device, the other end of the pressure sensor is connected with the input end of the alarm, the fixing piece is used for being buried into the underground ground of a coal mine, and the sub-shell is used for being embedded into the underground ground of the coal mine;

when the tension device collapses, the tension device is driven by the fixing part to move out of the sub-shell through the connecting part, and if the pressure of the tension device detected by the pressure sensor is greater than a pressure threshold value, an alarm signal is generated and sent to the alarm.

2. The detection system according to claim 1, wherein the intelligent extension further comprises a signal converter, the signal converter is arranged in the extension housing, the alarm comprises an audible and visual alarm and a collapse displacement indicating dial, and the other end of the pressure sensor is respectively connected with the input ends of the audible and visual alarm and the collapse displacement indicating dial through the signal converter;

and if the pressure of the tensioner detected by the pressure sensor is greater than a pressure threshold value, generating a first alarm signal through the signal converter and sending the first alarm signal to the acousto-optic alarm, and generating a second alarm signal and sending the second alarm signal to the collapse position indicator.

3. The detection system according to claim 1, wherein one end of the tensioner is provided with a tensioner clamping piece movably connected with the other end of the connecting piece, and the tensioner clamping piece is driven by the fixing piece to control the connecting piece to move out of the sub-enclosure until the pressure of the tensioner detected by the pressure sensor is equal to a pressure threshold value.

4. The detection system of claim 1, wherein the fixture is coupled to one end of the connector by a self-contained tightening mechanism.

5. The detection system according to claim 1, wherein said intelligent extension further comprises: the battery detection device comprises a first battery detection module and a first low-voltage alarm which are connected, wherein the first battery detection module is arranged in the sub-machine shell, and the first low-voltage alarm is arranged on the surface of the sub-machine shell;

and when the first battery detection module detects that the battery voltage on the intelligent extension is less than or equal to a preset voltage threshold, generating a corresponding first low-voltage alarm signal and sending the first low-voltage alarm signal to the first low-voltage alarm.

6. The detection system according to claim 1, wherein the intelligent extension further comprises a switch control module connected to the tensioner, and when the tensioner is moved out of the extension housing by the fixing member through the connecting member, the switch in the switch control module is triggered to be closed, so as to wake up each function module in the intelligent extension.

7. The detection system of claim 2, further comprising: the intelligent host is wirelessly connected with the intelligent extension, and is arranged at an underground inlet of the coal mine;

and if the pressure of the tensioner detected by the pressure sensor is greater than a pressure threshold value, generating a third alarm signal through the signal converter and sending the third alarm signal to the intelligent host.

8. The detection system according to claim 7, wherein the smart host comprises a main housing, and a second battery detection module and a second low voltage alarm which are connected, wherein the second battery detection module is arranged in the main housing, and the second low voltage alarm is arranged on the surface of the main housing;

and when the second battery detection module detects that the battery voltage on the intelligent host is less than or equal to a preset voltage threshold, generating a corresponding second low-voltage alarm signal and sending the second low-voltage alarm signal to the second low-voltage alarm.

9. The detection system according to claim 7, wherein said intelligent extension set further comprises a first wireless transceiver module connected to said signal converter, said intelligent extension set further comprising a second wireless transceiver module;

and the first wireless transceiver module sends the third alarm signal generated by the signal converter to the second wireless transceiver module.

10. The detection system of claim 7, further comprising: the ring network switch and the remote industrial personal computer are sequentially connected with the intelligent host, and are arranged on the ground surface outside the coal mine;

and the intelligent host sends the third alarm signal to the remote industrial personal computer through the ring network switch, and the remote industrial personal computer determines corresponding collapse data according to the third alarm signal.

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