A one-pass three-proofing fire extinguishing equipment for coal mine

Abstract

This utility model provides a three-way fire extinguishing device for coal mines, belonging to the field of coal mine production technology. It includes an installation rod with a collar fitted on it. A protruding seat protrudes from the collar, and extinguishing components are symmetrically installed on the protruding seats. Each extinguishing component includes a first guide tube fixed to the protruding seat, and a second guide tube passing through it. Water outlet holes are drilled at the bottom of both the first and second guide tubes. A water inlet pipe is installed on the protruding seat of the collar, and both first guide tubes are connected to the protruding seats. The water inlet pipe is also connected to the interior of the first guide tube. An installation plate is installed at one end of the installation rod. This utility model achieves precise position adjustment through an axial sliding mechanism between the installation rod and the collar, combined with a servo motor-driven lead screw rotation transmission method. When different fire sources need to be covered, precise displacement control of the collar on the installation rod can be achieved, avoiding the errors and efficiency losses of traditional manual adjustment.

Description

Technical Field

[0001] This utility model relates to the field of coal mine production technology, and in particular to a three-proof fire extinguishing device for coal mines. Background Technology

[0002] "One Ventilation and Three Prevention" is a collective term for four technical management tasks in coal mine safety production: mine ventilation, gas control, coal dust control, and fire prevention and extinguishing. It aims to ensure the integrity of the mine ventilation system through systematic measures, prevent gas accumulation, coal dust explosions and fire accidents, and ensure the safety of underground operations. As the mining depth of coal mines continues to increase, the problem of mine heat hazards gradually emerges. The greater the depth, the higher the temperature in the mine. Mine heat hazards increase the risk of spontaneous combustion in the goaf, seriously affecting the safe production of the mine and the health of the workers.

[0003] Existing coal mine ventilation and fire extinguishing equipment mostly uses manual adjustment of the mounting rod and fire extinguishing components. The displacement of the collar on the mounting rod is mostly achieved by manually pushing and pulling or tightening bolts. This adjustment method is limited by the difference in the experience of the operators, and the overall practicality of the equipment is poor. Therefore, this application provides a coal mine ventilation and fire extinguishing equipment to meet the needs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a coal mine ventilation and fire extinguishing device to solve the problem that most existing coal mine ventilation and fire extinguishing devices use manual adjustment of the position of the mounting rod and the fire extinguishing components. The displacement of the collar on the mounting rod is mostly achieved by manual pushing and pulling or bolt tightening. This adjustment method is limited by the difference in the experience of the operators, and the overall practicality of the device is poor.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A coal mine fire extinguishing device with one ventilation and three protections includes an installation rod, a collar sleeved on the installation rod, a protruding seat protruding from the collar, and fire extinguishing components symmetrically installed on the protruding seats. Each fire extinguishing component includes a first guide pipe fixed on the protruding seat, a second guide pipe passing through the first guide pipe, and water outlet holes drilled at the bottom of both the first and second guide pipes. A water inlet pipe is installed on the protruding seat of the collar, and both of the first guide pipes are connected to the protruding seat. The water inlet pipe is connected to the inside of the first guide pipe. A mounting plate is installed on one end of the mounting rod, and a servo motor for adjusting the position of the collar is installed on the end of the mounting plate away from the mounting rod.

[0006] Furthermore, the mounting rod has a cavity inside, a lead screw is rotatably installed inside the cavity, and a sleeve ring is fixed at the inner edge of the collar.

[0007] Furthermore, the lead screw is installed through the sleeve ring, and the lead screw and the sleeve ring are threaded together. One end of the lead screw is fixed to the output end of the mounting plate.

[0008] Furthermore, the first guide pipe has a through-channel, and the second guide pipe is installed through the through-channel of the second guide pipe.

[0009] Furthermore, a limiting strip is fixedly protruding at the top of the passage of the first guide tube, and a limiting groove is opened at the top of the second guide tube, with the limiting strip slidably disposed in the limiting groove.

[0010] Furthermore, a protruding frame is provided at the bottom of the passage of the first guide tube, and a sliding groove is provided at the bottom of the second guide tube for the protruding frame to slide.

[0011] Furthermore, the water outlet on the first guide pipe is located directly below the protruding frame, and the water outlet on the second guide pipe is located at the groove of the second guide pipe.

[0012] Furthermore, a plurality of water outlet holes are provided, and the plurality of water outlet holes are equidistantly arranged on the first guide pipe and the second guide pipe.

[0013] Furthermore, a scale plate is horizontally embedded on the second conductive tube, and scale lines are engraved on the scale plate. The zero mark of the scale plate is located at the end of the second conductive tube away from the first conductive tube.

[0014] Furthermore, a positioning bolt is installed at the outer edge of one end of the first conductive tube near the second conductive tube, and the first conductive tube and the positioning bolt are threaded together, with one end of the positioning bolt pressing against the outer edge of the second conductive tube.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects: In the above scheme, the axial sliding mechanism between the mounting rod and the collar, combined with the transmission method of the servo motor driving the lead screw to rotate, forms a precise position adjustment. When it is necessary to cover fire sources in different areas, the servo motor can achieve precise displacement control of the collar on the mounting rod through the threaded engagement between the lead screw and the collar, effectively adapting to the complex spatial layout downhole and avoiding the errors and efficiency losses of traditional manual adjustment. With the fire extinguishing components in place, the first and second guide pipes slide axially through the passageway. This allows the overall length of the fire extinguishing components to be adjusted according to the width of the passageway during operation, thus enabling the device to adapt to fire extinguishing needs with different passageway widths. Attached Figure Description

[0016] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0017] Figure 1 A three-dimensional structural diagram of a fire extinguishing system with ventilation, fire prevention, and fire protection for coal mines; Figure 2 A three-dimensional structural diagram of a coal mine fire extinguishing system after disassembly and installation of the support rod; Figure 3 A longitudinal sectional view of a coal mine fire extinguishing system with ventilation, fire prevention, and fire control. Figure 4 Fire extinguishing equipment for coal mines Figure 1 A magnified structural diagram of point A in the middle.

[0018] [Figure Labels] 1. Mounting rod; 2. Mounting plate; 3. Servo motor; 4. Collar; 5. Lead screw; 6. Sleeve ring; 7. Fire extinguishing assembly; 8. First guide pipe; 81. Limiting strip; 9. Second guide pipe; 91. Limiting groove; 10. Water outlet; 11. Water inlet pipe; 12. Positioning bolt; 13. Scale plate.

[0019] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0020] The following is a detailed description of a coal mine fire extinguishing device with ventilation, fire prevention, and fire control provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some known technologies, those skilled in the art can also use other alternative methods to implement the device; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0021] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0022] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0023] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0024] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of this utility model provides a coal mine fire extinguishing device with one ventilation and three protections, including an installation rod 1, a collar 4 sleeved on the installation rod 1, a protruding seat protruding from the collar 4, a cavity inside the installation rod 1, a lead screw 5 rotatably installed in the cavity, a sleeve ring 6 fixed at the inner edge of the collar 4, the lead screw 5 passing through and installed at the sleeve ring 6, the lead screw 5 and the sleeve ring 6 being threadedly engaged, one end of the lead screw 5 being fixed to the output end of the installation plate 2, the installation plate 2 being installed at one end of the installation rod 1, and a servo motor 3 for adjusting the position of the collar 4 being installed at the end of the installation plate 2 away from the installation rod 1.

[0026] By using the axial sliding mechanism between the mounting rod 1 and the collar 4, combined with the transmission method of the servo motor 3 driving the lead screw 5 to rotate, precise position adjustment is achieved. When it is necessary to cover fire sources in different areas, the servo motor 3 can achieve precise displacement control of the collar 4 on the mounting rod 1 through the threaded engagement between the lead screw 5 and the collar 6. This effectively adapts to the complex spatial layout downhole and avoids the errors and efficiency losses of traditional manual adjustment.

[0027] Fire extinguishing components 7 are symmetrically installed on the aforementioned protruding seats. The fire extinguishing components 7 include a first guide pipe 8 fixed on the protruding seat, a second guide pipe 9 installed through the first guide pipe 8, and water outlet holes 10 drilled at the bottom of both the first guide pipe 8 and the protruding seat of the collar 4. A water inlet pipe 11 is installed on the protruding seat of the collar 4. Both first guide pipes 8 are connected to the protruding seat. A through-passage is opened on the first guide pipe 8, and the second guide pipe 9 is installed through the through-passage of the second guide pipe 9.

[0028] With the fire extinguishing component 7 in place, the first guide pipe 8 and the second guide pipe 9 slide axially through the passage. During operation, the overall length of the fire extinguishing component 7 can be adjusted according to the width of the passage, so that the device can adapt to the fire extinguishing needs of different passage widths.

[0029] The first guide tube 8 has a fixed limiting strip 81 protruding from the top of its passage, and the second guide tube 9 has a limiting groove 91 at its top, with the limiting strip 81 slidably disposed in the limiting groove 91. The cooperation between the limiting strip 81 and the limiting groove 91 ensures radial stability during operation, preventing slippage of the first guide tube 8 and the second guide tube 9.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, a protruding frame is provided at the bottom of the passage of the first guide pipe 8, and a sliding groove is provided at the bottom of the second guide pipe 9 for the protruding frame to slide. The water outlet 10 on the first guide pipe 8 is located directly below the protruding frame, and the water outlet 10 on the second guide pipe 9 is located at the sliding groove of the second guide pipe 9. Several water outlets 10 are provided, and the several water outlets 10 are equidistantly arranged on the first guide pipe 8 and the second guide pipe 9.

[0031] With several water outlets 10 set at equal intervals, effective spraying can be ensured at all locations during operation, minimizing the occurrence of fire extinguishing dead zones and improving the overall practicality of the device.

[0032] A scale plate 13 is horizontally embedded on the second conductive tube 9. The scale plate 13 is engraved with scale lines. The zero scale of the scale plate 13 is located at the end of the second conductive tube 9 away from the first conductive tube 8. A positioning bolt 12 is installed at the outer edge of the end of the first conductive tube 8 close to the second conductive tube 9. The first conductive tube 8 and the positioning bolt 12 are threaded together. One end of the positioning bolt 12 presses against the outer edge of the second conductive tube 9.

[0033] By setting the zero mark on the scale plate 13 at the far end of the second conductive tube 9, and with the top-pressing and fixing function of the positioning bolt 12, operation visualization and position lockability are achieved. The operator can directly read the extension length of the second conductive tube 9 through the scale plate 13. With the quick locking of the positioning bolt 12, the error of traditional visual adjustment is avoided, and the position stability in the underground vibration environment is ensured, preventing the fire extinguishing range from shifting due to equipment shaking.

[0034] The working principle of the technical solution provided by this utility model is as follows: The collar 4 is sleeved on the mounting rod 1 and can move along its axial direction. The servo motor 3 is installed at one end of the mounting plate 2, and its output end is fixedly connected to the lead screw 5. The lead screw 5 passes through the sleeve 6 and is threaded to the inner edge of the collar 4. When the servo motor 3 is started, the lead screw 5 rotates and drives the sleeve 6 to move along the axial direction of the lead screw 5, thereby realizing the position adjustment of the collar 4 on the mounting rod 1. Fire extinguishing components 7 are symmetrically installed on the protruding seat of the collar 4. Each fire extinguishing component 7 consists of a first conductive tube 8 and a second conductive tube 9.

[0035] The first guide tube 8 is fixed to the protruding seat, and a through-channel is opened inside it for the sliding installation of the second guide tube 9. A limiting strip 81 is provided at the top of the through-channel of the first guide tube 8, and a corresponding limiting groove 91 is opened at the top of the second guide tube 9. The two slide together to achieve axial limiting. The bottom is slidably engaged with the sliding groove of the second guide tube 9 through the protruding frame to ensure sliding stability. The water inlet pipe 11 is connected to the protruding seat to supply water to the inside of the first guide tube 8. The water flows through the water outlet holes at the bottom of the first guide tube 8 and the second guide tube 9. The water outlet 10 is equidistantly arranged on the first guide pipe 8 and the second guide pipe 9 to form a uniform fire extinguishing water curtain. The scale plate 13 embedded horizontally on the second guide pipe 9 shows its extension length relative to the first guide pipe 8. The zero mark is located at the end of the second guide pipe 9 away from the first guide pipe 8, which facilitates precise adjustment of the fire extinguishing range. The positioning bolt 12 is threaded on the outer edge of the first guide pipe 8 and is fixed in position after sliding by pressing against the outer edge of the second guide pipe 9, ensuring the stability of the fire extinguishing component 7.

[0036] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A three-proof fire extinguishing device for coal mines, characterized in that, The device includes a mounting rod, on which a collar is fitted, and a protruding seat is provided on the collar. Fire extinguishing components are symmetrically installed on the protruding seats. The fire extinguishing components include a first guide tube fixed on the protruding seat, and a second guide tube is installed through the first guide tube. Water outlet holes are drilled at the bottom of both the first guide tube and the second guide tube. A water inlet pipe is installed on the protruding seat of the collar, and both of the first guide pipes are connected to the protruding seat. The water inlet pipe is connected to the inside of the first guide pipe. A mounting plate is installed on one end of the mounting rod, and a servo motor for adjusting the position of the collar is installed on the end of the mounting plate away from the mounting rod.

2. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 1, characterized in that, The mounting rod has a cavity inside, and a lead screw is rotatably installed inside the cavity. A sleeve ring is fixed at the inner edge of the collar.

3. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 2, characterized in that, The lead screw is installed through the sleeve ring, and the lead screw and the sleeve ring are threaded together. One end of the lead screw is fixed to the output end of the mounting plate.

4. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 1, characterized in that, The first guide pipe has a through-channel, and the second guide pipe is installed through the through-channel of the second guide pipe.

5. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 4, characterized in that, A limiting strip protrudes and is fixed at the top of the passage of the first guide tube, and a limiting groove is opened at the top of the second guide tube, with the limiting strip slidably disposed in the limiting groove.

6. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 5, characterized in that, The first guide tube has a protruding frame at the bottom of its passage, and the second guide tube has a groove at the bottom for the protruding frame to slide.

7. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 6, characterized in that, The water outlet on the first guide pipe is located directly below the protruding frame, and the water outlet on the second guide pipe is located at the groove of the second guide pipe.

8. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 7, characterized in that, The water outlet is provided in a plurality of manners, which are equidistantly arranged on the first guide pipe and the second guide pipe.

9. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 1, characterized in that, A scale plate is horizontally embedded on the second conductive tube. The scale plate is engraved with scale lines, and the zero mark of the scale plate is located at the end of the second conductive tube away from the first conductive tube.

10. The coal mine fire extinguishing equipment with ventilation, air supply, and fire prevention as described in claim 9, characterized in that, A positioning bolt is installed at the outer edge of one end of the first conductive tube near the second conductive tube. The first conductive tube and the positioning bolt are threaded together, and one end of the positioning bolt presses against the outer edge of the second conductive tube.

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