An emergency drainage device for coal mining

Abstract

The utility model is suitable for the technical field of emergency drainage and provides an emergency drainage device for coal mining, which comprises: an emergency drainage device body, a maintenance mechanism arranged on the top of the emergency drainage device body, and an emergency expansion mechanism arranged on the top of the maintenance mechanism; the utility model forms a stable meshing transmission relationship among the tooth ring, the first gear, the second gear and the third gear by arranging the emergency expansion mechanism on the top of the emergency drainage device body, and the expansion plate can be quickly unfolded without an additional power source through manual driving of the transmission handle, so that the emergency drainage device body can be quickly positioned and fixed in the sudden water gushing environment of coal mining, the device is prevented from deviating or toppling due to water flow impact or ground wetness, and the safety and reliability of emergency drainage operation are improved.

Description

Technical Field

[0001] This utility model belongs to the field of emergency drainage technology, and in particular relates to an emergency drainage device for coal mining. Background Technology

[0002] During coal mining operations, due to complex geological conditions, uneven distribution of aquifers, and sudden water inrushes, large amounts of water can easily accumulate in mining areas and roadways. If this water cannot be drained in time, it will seriously affect the safety of workers, equipment operation, and underground ventilation and transportation. Therefore, emergency drainage devices are usually equipped on coal mine sites to deal with sudden water accumulation.

[0003] However, some problems still exist in the above solutions: Existing emergency drainage devices in coal mines are mostly put into use through temporary deployment or rapid deployment. In actual drainage processes, the devices are prone to instability, displacement, or even tipping over when subjected to water flow impact, slippery ground, or limited roadway space, which affects drainage efficiency and poses safety hazards. Furthermore, after completing their drainage tasks, existing emergency drainage devices often retain a large amount of silt, coal sludge, and impurities inside. In the humid underground environment, this sludge easily adheres to the inner walls of the device. If not cleaned promptly, it not only reduces subsequent drainage efficiency but may also cause blockages, corrosion, or damage to the device. Currently, cleaning the interior of emergency drainage devices mostly relies on manual disassembly or high-pressure flushing, which is cumbersome, labor-intensive, and difficult to implement in confined underground spaces. This can easily affect the reusability of the equipment and its rapid readmission for emergency operations. Utility Model Content

[0004] This utility model provides an emergency drainage device for coal mining, which aims to solve the problems mentioned in the background art.

[0005] This utility model is implemented as follows: an emergency drainage device for coal mining, comprising: an emergency drainage device body, a maintenance mechanism on the top of the emergency drainage device body, and an emergency expansion mechanism on the top of the maintenance mechanism. The emergency expansion mechanism includes a gear ring, a positioning pin, a first gear, a second gear, a third gear, and an expansion plate. The third gear meshes with the inner side of the outer side of the gear ring, the second gear meshes with the outer side of the gear ring, the positioning pin is connected to the middle of the third gear, and the expansion plate is connected to the top of the positioning pin. The maintenance mechanism includes an inflatable airbag, an inflation port, a transfer rope, and a connecting rope. The inflation port is located on the outer side of the inflatable airbag, the connecting rope is fixedly connected to the top of the inflatable airbag, and the transfer rope is fixedly connected to the bottom of the inflatable airbag.

[0006] Preferably, a fixing rod is fixedly connected to the outside of the emergency drainage device body, and a hopper is fixedly connected to one end of the fixing rod, with the hopper placed on top of the emergency drainage device body.

[0007] Preferably, a stop bar is fixedly connected to the inner side of the hopper, and a connecting plate is fixedly connected to one end of the stop bar.

[0008] Preferably, a support is fixedly connected to the top of the emergency drainage device body, and the toothed ring is rotatably connected to the top of the support.

[0009] Preferably, one end of the connecting rope passes through the connecting plate and is secured to the top of the connecting plate.

[0010] Preferably, the third gear is rotatably connected to the top of the support, and a base is fixedly connected to the outside of the support.

[0011] Preferably, both the second gear and the first gear are rotatably connected to the top of the base, and a transmission handle is fixedly connected to the top of the first gear.

[0012] Preferably, one end of the transfer rope passes through the body of the emergency drainage device.

[0013] Compared with related technologies, the emergency drainage device for coal mining provided by this utility model has the following beneficial effects: 1. This utility model, by setting an emergency expansion mechanism on the top of the emergency drainage device body, establishes a stable meshing transmission relationship between the gear ring, the first gear, the second gear, and the third gear. Combined with the manual drive of the transmission handle, the expansion plate can be quickly deployed without an additional power source. This allows the emergency drainage device body to be quickly positioned and fixed in the environment of sudden water inrush in coal mining, avoiding device displacement or tipping due to water flow impact or slippery ground, thus improving the safety and reliability of emergency drainage operations. At the same time, the support and base provide centralized support for each gear assembly, ensuring uniform force on the transmission structure and reducing the probability of wear during long-term use. With the setting of the fixing rod and hopper, accumulated water and mixed mud and sand can enter the interior of the emergency drainage device body in an orderly manner. Under the blocking and guiding effect of the baffle and connecting plate, the impact of large particles of impurities on the internal structure is reduced. Overall, this improves the adaptability and continuous operation capability of the emergency drainage device in complex coal mining environments.

[0014] 2. This utility model, by setting up a maintenance mechanism, forms a cleaning and maintenance structure independent of the drainage operation, consisting of an inflatable airbag, an inflation port, a transfer rope, and a connecting rope. After the emergency drainage operation is completed, the inflatable airbag can be inflated through the inflation port, causing it to expand inside the emergency drainage device and compress the residual sludge on the inner wall. Combined with the reciprocating pulling of the transfer rope and connecting rope, the inflatable airbag moves and swings in multiple directions inside the device, thereby repeatedly rubbing and disturbing the inner wall at different locations. This effectively breaks the adhesion between the sludge and the inner wall, achieving the effect of internal cleaning without disassembling the emergency drainage device. This not only reduces the intensity of manual cleaning but also reduces structural damage caused by frequent disassembly and assembly, improving the maintenance convenience, reusability, and overall service life of the emergency drainage device. It is more suitable for the actual needs of coal mine mining sites for quickly restoring equipment to a usable state. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the expansion plate portion of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the inflatable airbag part of this utility model; Figure 5 This utility model Figure 4 Enlarged view of section B in the middle.

[0016] In the diagram: 1. Emergency drainage device body; 2. Maintenance mechanism; 201. Fixing rod; 202. Hopper; 203. Stop bar; 204. Connecting rope; 205. Connecting plate; 206. Inflatable airbag; 207. Inflation port; 208. Transfer rope; 3. Emergency expansion mechanism; 301. Expansion plate; 302. Gear ring; 303. Support; 304. Transmission handle; 305. Base; 306. First gear; 307. Second gear; 308. Third gear; 309. Positioning pin. Detailed Implementation

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] Example 1 A preferred embodiment of the emergency drainage device for coal mining provided by this utility model is, for example... Figures 1 to 5 As shown: An emergency drainage device for coal mining includes: an emergency drainage device body 1, a maintenance mechanism 2 on the top of the emergency drainage device body 1, and an emergency expansion mechanism 3 on the top of the maintenance mechanism 2. The emergency expansion mechanism 3 includes a gear ring 302, a positioning pin 309, a first gear 306, a second gear 307, a third gear 308, and an expansion plate 301. The third gear 308 is meshed on the inner side of the outer side of the gear ring 302, the second gear 307 is meshed on the outer side of the gear ring 302, the positioning pin 309 is connected to the middle of the third gear 308, and the expansion plate 301 is connected to the top of the positioning pin 309. The maintenance mechanism 2 includes an inflatable airbag 206, an inflation port 207, a transfer rope 208, and a connecting rope 204. The inflation port 207 is provided on the outer side of the inflatable airbag 206. The connecting rope 204 is fixedly connected to the top of the inflatable airbag 206, and the transfer rope 208 is fixedly connected to the bottom of the inflatable airbag 206.

[0020] In this embodiment, when the present invention is in use, the emergency drainage device body 1 is arranged at the water accumulation location in the coal mine mining area. The device is deployed and subsequently maintained through the cooperation of the maintenance mechanism 2 and the emergency expansion mechanism 3. The gear ring 302 in the emergency expansion mechanism 3 rotates under the action of external force. The gear ring 302 drives the overall transmission through the meshing relationship with the second gear 307 and the third gear 308. When the third gear 308 rotates, the positioning pin 309 changes position, thereby pushing the expansion plate 301 to expand outward, so that the emergency drainage device body 1 remains stable during the drainage process. The maintenance mechanism 2 participates in the internal cleaning operation after the emergency ends.

[0021] In a further preferred embodiment of the present invention, a fixing rod 201 is fixedly connected to the outer side of the emergency drainage device body 1, and a hopper 202 is fixedly connected to one end of the fixing rod 201. The hopper 202 is placed on the top of the emergency drainage device body 1.

[0022] In this embodiment, during the actual drainage process, a fixing rod 201 is installed on the outside of the emergency drainage device body 1 to provide stable support for the hopper 202. The hopper 202 is located at the top of the emergency drainage device body 1, allowing the accumulated water to collect and enter the device under the action of gravity. The fixing rod 201 limits and supports the hopper 202, preventing it from shaking under the impact of water flow or the accumulation of impurities, thereby ensuring the continuity and stability of the water intake process and providing reliable conditions for subsequent drainage operations.

[0023] In a further preferred embodiment of the present invention, a stop bar 203 is fixedly connected to the inner side of the hopper 202, and a connecting plate 205 is fixedly connected to one end of the stop bar 203.

[0024] In this embodiment, when water and mixed silt enter the hopper 202, the baffle 203 set inside the hopper 202 initially blocks and guides the incoming water flow and impurities. The baffle 203 forms a flow-limiting structure through a fixed connection with the connecting plate 205, so that larger impurities are blocked inside the hopper 202, preventing them from directly entering the emergency drainage device body 1, thereby reducing the risk of internal blockage. At the same time, the connecting plate 205 provides a structural basis for the subsequent coordinated movement of the connecting rope 204.

[0025] In a further preferred embodiment of the present invention, a support 303 is fixedly connected to the top end of the emergency drainage device body 1, and the toothed ring 302 is rotatably connected to the top end of the support 303.

[0026] In this embodiment, during the operation of the emergency expansion mechanism 3, the support 303 is fixed at the top of the emergency drainage device body 1, and the gear ring 302 is rotatably connected to the top of the support 303, so that the gear ring 302 has a stable center of rotation when rotating. The support 303 provides support and limit for the gear ring 302, so that the gear ring 302 maintains smooth operation during transmission, thereby ensuring that the meshing state between the gear ring 302 and the second gear 307 and the third gear 308 is stable and reliable, and avoiding transmission deviation.

[0027] In a further preferred embodiment of the present invention, one end of the connecting rope 204 passes through the connecting plate 205 and is secured to the top of the connecting plate 205.

[0028] In this embodiment, when the maintenance mechanism 2 is performing cleaning operations, one end of the connecting rope 204 passes through the connecting plate 205 and is locked at the top of the connecting plate 205. This structure allows the connecting rope 204 to be limited by the connecting plate 205 during the pulling process. When the operator pulls the connecting rope 204, the movement direction of the inflatable airbag 206 can be guided, so that the inflatable airbag 206 moves in a controlled manner inside the emergency drainage device body 1, providing conditions for the friction cleaning of the internal sludge.

[0029] In a further preferred embodiment of the present invention, the third gear 308 is rotatably connected to the top of the support 303, and a base 305 is fixedly connected to the outer side of the support 303.

[0030] In this embodiment, the third gear 308 is rotatably connected to the top of the support 303, so that the third gear 308 maintains stable rotation under the drive of the gear ring 302. The base 305 fixedly connected to the outside of the support 303 provides the mounting base for the second gear 307 and the first gear 306, so that the entire transmission structure is concentrated in the top area of ​​the emergency drainage device body 1. During the transmission process, each gear is subjected to uniform force, which is conducive to ensuring the continuity and reliability of the expansion plate 301's unfolding action.

[0031] Example 2 Based on Embodiment 1, a preferred embodiment of the emergency drainage device for coal mining provided by this utility model is as follows: Figures 1 to 5 As shown: the second gear 307 and the first gear 306 are both rotatably connected to the top of the base 305, and the top of the first gear 306 is fixedly connected to the transmission handle 304.

[0032] In this embodiment, during the expansion operation, the first gear 306 and the second gear 307 are both rotatably connected to the top of the base 305. The operator rotates the transmission handle 304 to drive the first gear 306 to rotate, and the first gear 306 and the second gear 307 form a meshing transmission. The second gear 307 further drives the gear ring 302 to rotate, so that the emergency expansion mechanism 3 can complete the expansion action without additional power, which is convenient for quick operation at the coal mine site.

[0033] In a further preferred embodiment of this utility model, one end of the transmission rope 208 passes through the body 1 of the emergency drainage device.

[0034] In this embodiment, during the maintenance process after the emergency drainage is completed, one end of the transfer rope 208 passes through the body 1 of the emergency drainage device. The operator pulls the transfer rope 208 to drive the inflatable airbag 206 to move up and down or back and forth inside the device. In conjunction with the expansion of the inflatable airbag 206, it repeatedly rubs and disturbs the residual sludge on the inner wall, thereby cleaning the inside of the body 1 of the emergency drainage device and providing conditions for reuse.

[0035] In summary, this utility model is mainly used for emergency drainage operations in the event of sudden water inrush during coal mining. In actual use, the main body 1 of the emergency drainage device is arranged as a whole in the mining area or low-lying area of ​​the roadway where drainage is required. The accumulated water is concentrated and discharged through the main body 1 of the emergency drainage device. After the device is in place, it can be quickly deployed and stably positioned by the emergency expansion mechanism 3 set on the top of the main body 1 of the emergency drainage device to ensure the structural stability during the drainage process. During the emergency drainage phase, the operator turns the transmission handle 304, causing the first gear 306 to rotate under the support of the base 305. The first gear 306 meshes with the second gear 307, and the second gear 307 further drives the gear ring 302 to rotate around the top of the support 303. During the rotation, the inner side of the gear ring 302 meshes with the third gear 308, causing the third gear 308 to rotate synchronously. The positioning pin 309 connected in the middle of the third gear 308 changes position accordingly, thereby pushing the expansion plate 301 to unfold outward. After unfolding, the expansion plate 301 forms abutment support with the surrounding tunnel wall or the inner wall of the drainage channel, so that the body of the emergency drainage device 1 is stably limited and prevented from tipping over or shifting under the impact of large water volume. The fixing rod 201 on the outside of the emergency drainage device body 1 is used to support the hopper 202, so that the hopper 202 is stably located on the top of the emergency drainage device body 1. The accumulated water and the mixed mud and sand can enter the device through the hopper 202. The baffle 203 on the inside of the hopper 202 cooperates with the connecting plate 205 to block and guide larger particles of impurities, preventing impurities from directly entering the key areas inside the device, thereby ensuring the continuity and reliability of the drainage process. After the emergency drainage operation is completed, in order to facilitate the cleaning of the residual sludge inside the device, this utility model realizes the maintenance and cleaning function after the emergency is completed through the maintenance mechanism 2. At this time, air is inflated into the airbag 206 through the air inlet 207, so that the airbag 206 gradually expands inside the body 1 of the emergency drainage device. During the expansion process, the airbag 206 exerts a squeezing effect on the sludge attached to the inner wall, causing some of the sludge to loosen and fall off. Subsequently, the operator can pull the transfer rope 208 and the connecting rope 204 back and forth. One end of the transfer rope 208 passes through the body 1 of the emergency drainage device. During the pulling process, it drives the inflatable airbag 206 to move inside the device, so that the inflatable airbag 206 repeatedly rubs and impacts the inner wall at different positions. The connecting rope 204 passes through the connecting plate 205 and is locked at the top of the connecting plate 205. When the connecting rope 204 is pulled, it can assist the movement direction of the inflatable airbag 206, so that the inflatable airbag 206 swings in multiple directions inside the device, thereby further destroying the adhesion between the sludge and the inner wall. Through the expansion of the inflatable airbag 206 and the repeated pulling of the transfer rope 208 and the connecting rope 204, the internal sludge can be cleaned without disassembling the main body 1 of the emergency drainage device. The residual sludge is discharged under gravity or flushing. After cleaning, the inflatable airbag 206 is deflated and reset, providing good conditions for the next emergency drainage operation.

[0036] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0037] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An emergency drainage device for coal mining, characterized in that, include: An emergency drainage device body (1) is provided with a maintenance mechanism (2) on the top of the emergency drainage device body (1), and an emergency expansion mechanism (3) is provided on the top of the maintenance mechanism (2). The emergency expansion mechanism (3) includes a gear ring (302), a positioning pin (309), a first gear (306), a second gear (307), a third gear (308), and an expansion plate (301). The third gear (308) is meshed on the inner side of the outer side of the gear ring (302), the second gear (307) is meshed on the outer side of the gear ring (302), the positioning pin (309) is connected to the middle of the third gear (308), and the expansion plate (301) is connected to the top of the positioning pin (309). The maintenance mechanism (2) includes an inflatable airbag (206), an inflation port (207), a transfer rope (208), and a connecting rope (204). An inflation port (207) is provided on the outer side of the inflatable airbag (206). A connecting rope (204) is fixedly connected to the top of the inflatable airbag (206), and a transfer rope (208) is fixedly connected to the bottom of the inflatable airbag (206).

2. The emergency drainage device for coal mining as described in claim 1, characterized in that, A fixing rod (201) is fixedly connected to the outside of the body (1) of the emergency drainage device. A hopper (202) is fixedly connected to one end of the fixing rod (201). The hopper (202) is placed on top of the body (1) of the emergency drainage device.

3. The emergency drainage device for coal mining as described in claim 2, characterized in that, A stop bar (203) is fixedly connected to the inner side of the hopper (202), and a connecting plate (205) is fixedly connected to one end of the stop bar (203).

4. The emergency drainage device for coal mining as described in claim 3, characterized in that, The top of the body (1) of the emergency drainage device is fixedly connected to a support (303), and the toothed ring (302) is rotatably connected to the top of the support (303).

5. The emergency drainage device for coal mining as described in claim 4, characterized in that, One end of the connecting rope (204) passes through the connecting plate (205) and is secured to the top of the connecting plate (205).

6. The emergency drainage device for coal mining as described in claim 5, characterized in that, The third gear (308) is rotatably connected to the top of the support (303), and a base (305) is fixedly connected to the outside of the support (303).

7. The emergency drainage device for coal mining as described in claim 6, characterized in that, The second gear (307) and the first gear (306) are both rotatably connected to the top of the base (305), and the top of the first gear (306) is fixedly connected to the transmission handle (304).

8. The emergency drainage device for coal mining as described in claim 7, characterized in that, One end of the transfer rope (208) passes through the body (1) of the emergency drainage device.

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