Drilling detection protection device for coal mine drilling machine

Abstract

The utility model relates to the technical field of drilling detection protection, in particular to a drilling detection protection device for a coal mine drilling machine, which comprises a mounting seat, a methane detector body, a PLC (programmable logic controller), an alarm lamp and a mounting telescopic mechanism. The telescopic assembly comprises a sleeve fixedly connected to the bottom face of the mounting base, a mounting column is slidably connected into the sleeve, a first mounting block is fixedly connected to the bottom end of the mounting column, two threaded through holes are formed in the side wall of the sleeve, and fastening screw rods are connected into the two threaded through holes in a threaded mode. According to the utility model, the height of the detection device can be conveniently adjusted through the arranged telescopic assembly, and rapid installation and disassembly between the methane detector body and the installation block can be realized through the arranged installation assembly, so that daily maintenance, calibration and replacement of the detector are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of drilling detection and protection technology, specifically to a drilling detection and protection device for coal mine drilling rigs. Background Technology

[0002] During coal mining, gas leakage is a serious safety hazard when drilling is carried out using drilling rigs. The main component of gas is methane. When the concentration of methane in the air reaches a certain range, it is very easy to explode when exposed to an open flame, seriously threatening the lives of coal miners and the normal production of the coal mine.

[0003] A search revealed that patent document CN222501702U discloses an automatic drilling and monitoring device for coal mine drilling rigs, including a base, a body, and drilling equipment. The outer shell of the drilling equipment is equipped with a cylindrical shell, and a circular hole is opened on the bottom surface of the inner shell of the cylindrical shell. A methane detector body is installed inside the cylindrical shell. A control device that cooperates with the methane detector body is provided on the front surface of the shell of the body. An alarm is installed on the top surface of the shell of the body. This utility model can improve the safety of coal mining.

[0004] The aforementioned existing technologies often have the following problems when used:

[0005] Existing drilling detection and protection devices for coal mine drilling rigs are mostly fixed installations, with their detection probes positioned in a fixed location. This makes it difficult to flexibly adjust them according to the actual drilling location and changes in the coal seam structure. Furthermore, fixed-position detection devices cannot detect gas leaks in a timely and accurate manner, resulting in blind spots. In addition, the installation process of existing drilling detection and protection devices for coal mine drilling rigs is relatively cumbersome and complex, which is inconvenient for equipment installation and maintenance, and affects operational efficiency. Corresponding solutions are needed. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a drilling detection and protection device for coal mine drilling rigs, which can effectively solve the problems of inconvenient installation and difficulty in flexibly adjusting the detection position of existing methane detection devices.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a drilling detection and protection device for coal mine drilling rigs, including a mounting base, a methane detector body, a PLC controller, and an alarm light;

[0009] The telescopic installation mechanism includes a telescopic component and an installation component. The telescopic component includes a sleeve fixedly connected to the bottom surface of the mounting base. An installation column is slidably connected inside the sleeve. A No. 1 installation block is fixedly connected to the bottom end of the installation column. Two threaded through holes are opened on the side wall of the sleeve, and fastening screws are threaded into both threaded through holes.

[0010] According to the above-mentioned drilling detection and protection device for coal mine drilling rigs, the installation assembly includes a second installation block located below a first installation block. The methane detector body is fixedly installed on the bottom surface of the second installation block. A first slot is formed on the bottom surface of the first installation block, and a second slot is formed on the inner top surface of the first slot. A groove is formed on the upper surface of the second installation block, and two inclined locking blocks are slidably connected in the groove. Guide rods are fixedly connected to the sidewalls of the two inclined locking blocks on opposite sides. Pressure plates are fixedly connected to the opposite ends of the two guide rods. Springs are fixedly connected between the two pressure plates and the sidewalls of the second installation block. Locking grooves are formed on the opposite sidewalls of the two inclined locking blocks.

[0011] According to the above-mentioned drilling detection and protection device for coal mine drilling rigs, the PLC controller and the alarm light are both fixedly installed on the side wall of the sleeve, and the alarm light and the methane detector body are both electrically connected to the PLC controller.

[0012] According to the above-mentioned drilling detection and protection device for coal mine drilling rigs, a knob is fixedly connected to each of the two fastening screws at a distance away from the sleeve, and multiple mounting holes are opened on the upper surface of the mounting base, and the two springs are respectively sleeved on the two guide rods.

[0013] According to the above-mentioned drilling detection and protection device for coal mine drilling rigs, the two side walls of the two inclined clamping blocks are in contact with the two inner walls of the groove.

[0014] According to the above-mentioned drilling detection and protection device for coal mine drilling rigs, the widths of the first slot and the second slot are the same as the width of the groove.

[0015] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0016] 1. This utility model, through the set telescopic component, can conveniently adjust the height of the detection device, thereby flexibly changing the detection position of the methane detector body according to different drilling operation environments and detection needs, improving the accuracy and reliability of detection, and effectively eliminating detection blind spots.

[0017] 2. The present invention, through the installation components, enables quick installation and disassembly between the methane detector body and the mounting block, facilitating daily maintenance, calibration and replacement of the detector, effectively reducing maintenance costs and improving work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural cross-sectional diagram of the present invention;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0023] Reference numerals: 1. Mounting base; 11. Methane detector body; 12. PLC controller; 13. Alarm light; 14. Mounting hole; 2. Telescopic assembly; 21. Sleeve; 22. Mounting column; 23. Mounting block No. 1; 24. Threaded through hole; 25. Fastening screw; 3. Mounting assembly; 31. Mounting block No. 2; 32. Slot No. 1; 33. Slot No. 2; 34. Groove; 35. Angled snap-fit ​​block; 36. Guide rod; 37. Pressure plate; 38. Spring; 39. Snap-fit ​​groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example: Refer to Figures 1 to 4A drilling detection and protection device for coal mine drilling rigs includes a mounting base 1, a methane detector body 11, a PLC controller 12, and an alarm light 13.

[0027] The telescopic mechanism is installed, including a telescopic component 2 and an installation component 3. The telescopic component 2 includes a sleeve 21 fixedly connected to the bottom surface of the mounting base 1. A mounting post 22 is slidably connected inside the sleeve 21. A mounting block 23 is fixedly connected to the bottom end of the mounting post 22. Two threaded through holes 24 are opened on the side wall of the sleeve 21. Fastening screws 25 are threadedly connected to the two threaded through holes 24. The PLC controller 12 and the alarm light 13 are fixedly installed on the side wall of the sleeve 21. The alarm light 13 and the methane detector body 11 are electrically connected to the PLC controller 12. A knob is fixedly connected to a section of the two fastening screws 25 away from the sleeve 21 for easy operation by the user. Multiple mounting holes 14 are opened on the upper surface of the mounting base 1 for the installation and fixing of the mounting base 1.

[0028] Mounting assembly 3 includes a second mounting block 31 located below the first mounting block 23. The methane detector body 11 is fixedly mounted on the bottom surface of the second mounting block 31. A first slot 32 is formed on the bottom surface of the first mounting block 23, and a second slot 33 is formed on the inner top surface of the first slot 32. A groove 34 is formed on the upper surface of the second mounting block 31, and two inclined locking blocks 35 are slidably connected in the groove 34. Guide rods 36 are fixedly connected to the sidewalls of the two inclined locking blocks 35 that are far apart from each other. Each end is fixedly connected to a pressure plate 37. A spring 38 is fixedly connected between the two pressure plates 37 and the side wall of the second mounting block 31. The side wall of the two oblique snap-fit ​​blocks 35 that are far apart is provided with a snap-fit ​​groove 39. The two springs 38 are respectively sleeved on the two guide rods 36. The two side walls of the two oblique snap-fit ​​blocks 35 are in contact with the two inner walls of the groove 34. The width of the first snap-fit ​​groove 32 and the second snap-fit ​​groove 33 are the same as the width of the groove 34, ensuring that the methane detector body 11 after installation has good stability.

[0029] The working principle of this utility model is as follows: When using this drilling detection and protection device for coal mine drilling rigs, firstly, according to the structure of the coal mine drilling rig and the drilling operation environment, the mounting base 1 is firmly fixed in a suitable position on the coal mine drilling rig using bolts and other connecting parts through the mounting holes 14 on the mounting base 1.

[0030] Then, depending on the required height, turn the knob on the fastening screw 25 to loosen the fastening screw 25. After adjusting the mounting post 22 to a suitable height by sliding it up and down in the sleeve 21, tighten the fastening screw 25 again to fix the position of the mounting post 22.

[0031] Next, install the methane detector body 11. Align the two oblique locking blocks 35 with the first locking slot 32 and insert the oblique locking blocks 35 into the first locking slot 32 and the second locking slot 33. When the oblique locking blocks 35 are inserted, the oblique surface of the oblique locking blocks 35 contacts the edge of the first locking slot 32. The first locking slot 32 will apply pressure to the oblique locking blocks 35, which will cause the oblique locking blocks 35 to slide in the groove 34 and compress the spring 38. When it is inserted in place, the oblique locking blocks 35 enter the second locking slot 33. The oblique surface of the oblique locking blocks 35 is no longer restricted and will pop out under the action of the spring 38, locking into the first locking slot 32 and the second locking slot 33. With its own locking slot 39 and the spring 38, it completes the locking and completes the installation of the methane detector body 11.

[0032] During the drilling operation of the coal mine drilling rig, the methane detector 11 detects the methane concentration in the working environment in real time and transmits the detected data to the PLC controller 12 in real time. The PLC controller 12 continuously compares and analyzes the received data with the preset concentration threshold. Once the methane concentration is detected to exceed the safety threshold, the PLC controller 12 immediately issues a command to trigger the alarm light 13 to light up, reminding the on-site workers to take emergency measures such as ventilation and evacuation in a timely manner through audible and visual alarm.

[0033] When maintenance or replacement of the methane detector body 11 is required, press the pressure plate 37 to slide the oblique locking block 35 in the groove 34 until it disengages from the first locking slot 32 and the second locking slot 33. Then the oblique locking block 35 can be removed from the slot of the first mounting block 23, thus making it convenient and quick to disassemble the methane detector body 11.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drilling detection and protection device for coal mine drilling rigs, characterized in that, include: Mounting base (1), methane detector body (11), PLC controller (12) and alarm light (13); The telescopic installation mechanism includes a telescopic component (2) and an installation component (3). The telescopic component (2) includes a sleeve (21) fixedly connected to the bottom surface of the mounting base (1). An installation column (22) is slidably connected inside the sleeve (21). A first installation block (23) is fixedly connected to the bottom end of the installation column (22). Two threaded through holes (24) are opened on the side wall of the sleeve (21). A fastening screw (25) is threadedly connected to each of the two threaded through holes (24).

2. The drilling detection and protection device for coal mine drilling rigs according to claim 1, characterized in that, The mounting assembly (3) includes a second mounting block (31) located below the first mounting block (23). The methane detector body (11) is fixedly mounted on the bottom surface of the second mounting block (31). The bottom surface of the first mounting block (23) has a first slot (32), and the inner top surface of the first slot (32) has a second slot (33). The upper surface of the second mounting block (31) has a groove (34), and the groove (34) contains... The sliding connection has two oblique snap-fit ​​blocks (35). Guide rods (36) are fixedly connected to the side walls of the two oblique snap-fit ​​blocks (35) that are far apart. Pressure plates (37) are fixedly connected to the ends of the two guide rods (36) that are far apart. Springs (38) are fixedly connected between the two pressure plates (37) and the side wall of the second mounting block (31). Snap-fit ​​grooves (39) are opened on the side walls of the two oblique snap-fit ​​blocks (35) that are far apart.

3. The drilling detection and protection device for coal mine drilling rigs according to claim 1, characterized in that, The PLC controller (12) and the alarm light (13) are both fixedly installed on the side wall of the sleeve (21), and the alarm light (13) and the methane detector body (11) are electrically connected to the PLC controller (12).

4. The drilling detection and protection device for coal mine drilling rigs according to claim 2, characterized in that, Both fastening screws (25) are fixedly connected to knobs at a distance away from the sleeve (21). The upper surface of the mounting base (1) is provided with multiple mounting holes (14). The two springs (38) are respectively sleeved on the two guide rods (36).

5. A drilling detection and protection device for coal mine drilling rigs according to claim 2, characterized in that, Both sides of the two oblique snap-fit ​​blocks (35) are in contact with the inner sides of the groove (34).

6. The drilling detection and protection device for coal mine drilling rigs according to claim 2, characterized in that, The widths of the first slot (32) and the second slot (33) are the same as the width of the groove (34).

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