Water replenishing device and explosion-proof water shed

Abstract

The water supplementing device comprises a water bag, a water supplementing mechanism and a water level control mechanism, and the water bag is provided with a first preset water level line; the water supplementing mechanism comprises a water storage tank, a water conveying pipe and an air inlet pipe, the water storage tank is provided with a second preset water line higher than the first preset water line, the two ends of the water conveying pipe are connected to the water storage tank and the water bag correspondingly, and the end, connected to the water storage tank, of the water conveying pipe is lower than the second preset water line. The end, connected to the water storage tank, of the air inlet pipe is higher than the second preset water line. The air inlet pipe is connected to one end of the water bag and the first preset water line. The water level control mechanism comprises a first water supply pipe connected to the water storage tank and a sensor arranged in the water storage tank, the sensor is used for monitoring the water volume in the water storage tank, and the first water supply pipe is used for injecting water into the water storage tank when the water level in the water storage tank is lower than a second preset water level; the water replenishing device can automatically replenish water to the water bag when water in the water bag is insufficient, and the water replenishing difficulty of the water bag is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of explosion protection in underground coal mines, and specifically, to a water replenishing device and an explosion isolation water curtain. Background Art

[0002] In underground coal mine roadways, explosion isolation water curtains are usually used to prevent and control the explosion of combustible gases and coal dust. When a coal dust explosion occurs, the water bags of the explosion isolation water curtain will be ruptured by the shock wave generated by the coal dust explosion. The water in the water bags can block the dispersion of gases and prevent the spread of the flame of the coal dust explosion. However, the water in the water bags is prone to evaporation in the roadway, resulting in water shortage in the water bags. Therefore, it is usually necessary for workers to patrol the roadway to replenish the water-deficient water bags, which has a high labor intensity. Moreover, when replenishing water to the water bags, it is impossible to directly observe the water volume in the water bags, which causes great difficulties in the operation of replenishing water to the water bags. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide a water replenishing device and an explosion isolation water curtain, which can automatically replenish water to the water bags when the water volume in the water bags is insufficient, and can replenish the water to the preset standard water volume in the water bags each time, reducing the difficulty of replenishing water to the water bags, so as to at least partially solve the above technical problems.

[0004] To achieve the above purpose, the first aspect of the present disclosure provides a water replenishing device, including: a plurality of water bags that are connected in sequence, and a first preset water level line is provided in each water bag; a water replenishing mechanism, including a water storage tank, a water delivery pipe, and an air inlet pipe. A second preset water level line is provided in the water storage tank, and the second preset water level line is higher than the first preset water level line. The two ends of the water delivery pipe are respectively connected to the water storage tank and the water bag, and the end of the water delivery pipe connected to the water storage tank is lower than the second preset water level line; the end of the air inlet pipe connected to the water storage tank is higher than the second preset water level line, and the end connected to the water bag is flush with the first preset water level line; and a water level control mechanism, including a first water supply pipe connected to the water storage tank and a sensor provided in the water storage tank. The sensor is used to monitor the water volume in the water storage tank, and the first water supply pipe is used to inject water into the water storage tank when the water level in the water storage tank is lower than the second preset water level line.

[0005] Optionally, the first preset water level lines of the plurality of water bags are at the same height.

[0006] The second aspect of the present disclosure provides an explosion isolation water curtain, including the water replenishing device of the above optional solution, as well as a spraying device and a fixing device. The fixing device is connected to the water replenishing device and the spraying device for fixing the water replenishing device and the spraying device to the roadway.

[0007] Optionally, the spraying device includes: a second water supply pipe provided with a stop valve; a spray pipe connected to the second water supply pipe, and a plurality of spray nozzles are provided on the spray pipe; and a trigger mechanism connected to the stop valve. The trigger mechanism includes a first state and a second state. In the first state, the stop valve is closed, and in the second state, the stop valve is opened. The trigger mechanism can be switched from the first state to the second state when impacted by airflow.

[0008] Optionally, the trigger mechanism includes: a rotating shaft connected to the stop valve and capable of rotating around its own axis; a connecting rod connected to the side wall of the rotating shaft; a trigger plate connected to the end of the connecting rod away from the rotating shaft, and one side of the trigger plate faces the extending direction of the roadway; and a limiting member that can limit the connecting rod when the rotating shaft rotates.

[0009] Optionally, the fixing device includes: a mounting frame extending along the width direction of the roadway; two brackets respectively connected to both ends of the mounting frame in the length direction, and the brackets are used to fix the mounting frame in the roadway; and hooks connected to the mounting frame and the water bag. The number of hooks is multiple and they are arranged at intervals along the length direction of the mounting frame. Each water bag is connected to at least one hook. The hook includes a first section, a second section, and a third section connected in sequence, and the first section and the third section are bent towards the same side relative to the second section.

[0010] Optionally, when the hook is connected to the mounting frame, the first section and the second section respectively fit against the opposite side walls of the mounting frame.

[0011] Optionally, a U-shaped member is provided on the outer side of the water storage tank, and the inner side walls of the U-shaped member fit against the opposite side walls of the mounting frame when the water storage tank is connected to the mounting frame.

[0012] Optionally, multiple rows of the mounting frames are arranged at intervals along the length direction of the roadway, and both ends of each mounting frame in the length direction are connected to the brackets.

[0013] Optionally, in the vertical direction, the height of the bracket is lower than the height of the mounting frame.

[0014] Through the above technical solution, that is, the water replenishing device provided by the present disclosure, when the water volume in the water bag is insufficient, the water replenishing mechanism of the water replenishing device can automatically replenish water to multiple water bags. That is to say, the water bag contains water and air, and the water and air are stored together in the sealed water bag. When the water volume in the water bag is sufficient, the water level in the water bag can be at the first preset water level line and can just cover the air inlet at one end of the water bag where the air inlet pipe is connected. The water storage tank is connected to the water bag through a water delivery pipe. At this time, the pressure in the water bag remains stable. When the water in the water bag evaporates and decreases due to the ventilation of the coal mine roadway, the water volume in the water bag will gradually decrease and then gradually drop below the first preset water level line in the water bag. When the water bag continuously loses water, the air inlet at the end of the air inlet pipe connected to the water bag will gradually be exposed to the air in the water bag. When the water volume in the water bag gradually decreases, the air in the water bag will gradually enter the water storage tank through the air inlet pipe. When the second preset water level line in the water storage tank is higher than the first water level line in the water bag, the air will squeeze the water stored in the water storage tank, and the water in the water storage tank will flow back into the water bag through the water delivery pipe to replenish water to the water bag. When the water level in the water bag is replenished to be flush with the first preset water level line, the water in the water bag will block the air inlet at the end of the air inlet pipe connected to the water bag and the water inlet at the end of the water delivery pipe again to stop the air from entering the air inlet pipe, and then the water storage tank can stop replenishing water to the water bag through the water delivery pipe. Moreover, the sensor of the water level control mechanism can monitor the water level in the water storage tank and replenish water to the water storage tank through the first water supply pipe, so that the water in the water storage tank can be dynamically maintained at the second preset water level line, so as to continuously replenish water to the water bag dynamically through the water storage tank when the water bag loses water. When replenishing water to the water bag in the above way, the water bag can be automatically replenished with water when the water volume in the water bag is insufficient, and the water level can be replenished to the preset standard water volume, that is, the first preset water level line in the water bag, each time when replenishing water, thus reducing the difficulty of replenishing water to the water bag.

[0015] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0017] Figure 1 is a front view of the positions of the water bag, the spraying device and the fixing device in the roadway provided in the exemplary embodiment of the present disclosure;

[0018] Figure 2 is a side view of the positions of the spraying device and the fixing device in the roadway provided in the exemplary embodiment of the present disclosure;

[0019] Figure 3 is Figure 2 The partial enlarged view of position A in

[0020] Figure 4 is the front view of the water replenishing device provided in the exemplary embodiment of the present disclosure;

[0021] Figure 5 is the side view of the water replenishing device provided in the exemplary embodiment of the present disclosure;

[0022] Figure 6 is the front view of the spraying device provided in the exemplary embodiment of the present disclosure;

[0023] Figure 7 is the side view of the spraying device provided in the exemplary embodiment of the present disclosure;

[0024] Figure 8 is the front view of the water bag provided in the exemplary embodiment of the present disclosure;

[0025] Figure 9 is the side view of the water bag provided in the exemplary embodiment of the present disclosure;

[0026] Figure 10 is the side view of the hook provided in the exemplary embodiment of the present disclosure;

[0027] Figure 11 is the front view of the hook provided in the exemplary embodiment of the present disclosure;

[0028] Figure 12 is the top view of the mounting bracket provided in the exemplary embodiment of the present disclosure;

[0029] Figure 13 is the front view of the mounting bracket provided in the exemplary embodiment of the present disclosure;

[0030] Figure 14 is the side view of the mounting bracket provided in the exemplary embodiment of the present disclosure;

[0031] Figure 15 is the top view of the bracket provided in the exemplary embodiment of the present disclosure;

[0032] Figure 16 is the front view of the bracket provided in the exemplary embodiment of the present disclosure;

[0033] Figure 17 is the side view of the bracket provided in the exemplary embodiment of the present disclosure.

[0034] Explanation of reference numerals

[0035] 1 - Water bag; 101 - First preset water level line; 102 - Hanging hole; 2 - Water replenishing mechanism; 201 - Second preset water level line; 210 - Water storage tank; 211 - U-shaped part; 220 - Water delivery pipe; 230 - Air inlet pipe; 3 - Water level control mechanism; 310 - First water supply pipe; 320 - Sensor; 4 - Spraying device; 410 - Second water supply pipe; 411 - Cut-off valve; 420 - Spraying pipe; 421 - Top screw seat; 422 - Top screw rod; 430 - Trigger mechanism; 431 - Rotating shaft; 432 - Connecting rod; 433 - Trigger plate; 434 - Limiting part; 435 - Counterweight; 5 - Fixing device; 510 - Mounting bracket; 511 - First mounting hole; 520 - Bracket; 521 - Insertion end; 522 - Second mounting hole; 530 - Hook; 531 - First section; 532 - Second section; 533 - Third section; 6 - External water supply pipeline; Detailed implementation manner

[0036] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0037] In the present disclosure, unless otherwise stated, the orientation terms such as "inside, outside" refer to the inside and outside relative to the contour of the structure or component itself; "first, second" etc. are used to distinguish one element from another, without sequence and importance. In addition, the same reference numerals in different reference drawings represent the same elements.

[0038] In the first aspect of the present disclosure, a water replenishing device is provided. Referring to Figures 1 to 17 as shown, the water replenishing device includes a water bag 1, a water replenishing mechanism 2 and a water level control mechanism 3. The specific structures and connection relationships of each component will be detailed below. The number of water bags 1 is multiple and they are connected in sequence. A first preset water level line 101 is provided inside the water bag 1; the water replenishing mechanism 2 includes a water storage tank 210, a water delivery pipe 220 and an air inlet pipe 230. A second preset water level line 201 is provided inside the water storage tank 210, and the second preset water level line 201 is higher than the first preset water level line 101. The two ends of the water delivery pipe 220 are respectively connected to the water storage tank 210 and the water bag 1, and the end of the water delivery pipe 220 connected to the water storage tank 210 is lower than the second preset water level line 201; the end of the air inlet pipe 230 connected to the water storage tank 210 is higher than the second preset water level line 201, and the end connected to the water bag 1 is flush with the first preset water level line 101; the water level control mechanism 3 includes a first water supply pipe 310 connected to the water storage tank 210 and a sensor 320 provided inside the water storage tank 210. The sensor 320 is used to monitor the water volume in the water storage tank 210, and the first water supply pipe 310 is used to inject water into the water storage tank 210 when the water level in the water storage tank 210 is lower than the second preset water level line.

[0039] Through the above technical solution, that is, the water replenishing device provided by the present disclosure, when the water volume in the water bag 1 is insufficient, the water replenishing mechanism 2 of the water replenishing device can automatically replenish water to multiple water bags 1. That is to say, the water bag 1 contains water and air, and the water and air are stored together in the sealed water bag 1. When the water volume in the water bag 1 is sufficient, the water level in the water bag 1 can be at the first preset water level line 101 at this time, and it can just cover the air inlet at one end of the air inlet pipe 230 connected to the water bag 1. The water storage tank 210 is connected to the water bag 1 through the water delivery pipe 220. At this time, the pressure in the water bag 1 remains stable. When the water in the water bag 1 evaporates and decreases due to the ventilation of the coal mine roadway, the water volume in the water bag 1 will gradually decrease and then gradually drop below the first preset water level line 101 in the water bag 1. When the water bag continues to lose water, the air inlet at which the air inlet pipe 230 is connected to the water bag 1 will gradually be exposed to the air in the water bag 1. When the water volume in the water bag 1 gradually decreases, the air in the water bag 1 will gradually enter the water storage tank 210 through the air inlet pipe 230. When the second preset water level line 201 in the water storage tank 210 is higher than the first water level line 101 in the water bag 1, the air will squeeze the water stored in the water storage tank 210, and the water in the water storage tank 210 will flow back into the water bag 1 through the water delivery pipe 220 to replenish water to the water bag 1. When the water level in the water bag 1 is replenished to be flush with the first preset water level line 101, the water in the water bag 1 will block the air inlet at which the air inlet pipe 230 is connected to the water bag 1 and the water inlet connected to the water delivery pipe 220 again to stop the air from entering the air inlet pipe 230, and thus the water storage tank 210 can stop replenishing water to the water bag 1 through the water delivery pipe 220. Moreover, the sensor 320 of the water level control mechanism 3 can monitor the water level in the water storage tank 210 and replenish water to the water storage tank 210 through the first water supply pipe 310, so that the water in the water storage tank 210 can be dynamically maintained at the second preset water level line 201, so as to continuously replenish water to the water bag 1 dynamically through the water storage tank 210 when the water bag 1 loses water. When replenishing water to the water bag 1 in the above manner, the water bag 1 can be automatically replenished with water when the water volume in the water bag 1 is insufficient, and the water level can be replenished to the preset standard water volume each time of replenishment, that is, at the first preset water level line 101 in the water bag 1, thereby reducing the difficulty of replenishing water to the water bag 1.

[0040] In order to better control the water in the water storage tank 210 to dynamically maintain at the second preset water level line 201, a water pressure reducing valve (not shown in the figure) can be provided on the first water supply pipe 310. By adjusting the valve opening of the water pressure reducing valve, the first water supply pipe 310 can be connected to the external water supply pipe 6. Under the water pressure of the first water supply pipe 310, the water level in the water storage tank 210 can be dynamically maintained at the second preset water level line 201. Furthermore, the situation of the water level in the water storage tank 210 dropping too significantly and water shortage can also be reduced. Thus, the water storage tank 210 can continuously and stably conduct dynamic water replenishment for the water bag 1. In order to ensure the sealing performance of the connection between the water storage tank 210 and the water bag 1 during the water supply process, a sealing sticker (not shown in the figure) can be provided at the position where the water delivery pipe 220 is connected to the water bag 1. The sealing sticker can ensure the sealing performance during the water delivery process, thereby preventing water from leaking to the outside during the process of being transported from the water storage tank 210 to the water bag 1.

[0041] It should be noted that the water bag 1 can be hung in the coal mine roadway through the hanging hook 530 and the mounting bracket 510 (which will be elaborated in detail later). And the water bag 1 can be provided with hanging holes 102 that cooperate with the hanging hook 530. Moreover, multiple hanging holes 102 can be provided on the water bag 1 at intervals, and the water bag 1 can be hung simultaneously by multiple hanging hooks 530, thereby improving the stability of the water bag 1 hanging in the coal mine roadway.

[0042] In addition, it can be understood that the above-mentioned water replenishment operation for the water bag 1 can only be carried out when the water bag 1 is normally hung in the coal mine roadway. When a coal dust explosion occurs in the coal mine roadway, the generated shock wave will break the water bag. Thus, the water in the water bag 1 can block the dispersion of the harmful gases generated by the coal dust explosion and extinguish the flame generated by the coal dust explosion to prevent further spread. When the water bag 1 is broken by the impact, the water replenishment device cannot replenish water to the water bag 1 through the water storage tank 210, the water delivery pipe 220, and the air inlet pipe 230. It is necessary to reinstall a new water bag 1 before the normal water replenishment operation can be carried out.

[0043] In some embodiments, refer to Figures 1 to 17As shown, the first preset water level lines 101 of multiple water bags 1 are at the same height. In this arrangement, when there is a coal dust explosion in the coal mine roadway, the multiple water bags 1 can jointly block the dispersion of gas and extinguish the flame to prevent the spread of fire. That is to say, when a coal dust explosion occurs in the coal mine roadway, the shock wave will break multiple water bags 1 at the same time, and the water stored in the multiple water bags 1 can extinguish the flame at the same time; moreover, when the first preset water level lines 101 of the multiple water bags 1 are at the same height, the water replenishing mechanism 2 can replenish water to the multiple sequentially connected water bags 1 at the same time. That is to say, when there is a water shortage in the multiple water bags 1 with the first preset water level line 101 at the same horizontal height, the actual water levels in the multiple water bags 1 are all lower than the first preset water level line 101. At this time, the water in the water bag 1 no longer blocks the air inlet of the air inlet pipe 230. When the air inlet pipe 230 fills the water storage tank 210 with air and forces the water in the water storage tank 210 to flow along the water delivery pipe 220 to the water bag 1, it is to replenish water to the multiple water bags 1 at the same height at the same time. When the water in the multiple water bags 1 at the same height reaches the first preset water level line 101, the water supply can be stopped. Through the above water supply method, the water supply efficiency and automation degree of the multiple water bags 1 are improved, and the operation is simpler, without the need for staff to frequently walk in the coal mine roadway to replenish water to the water bags 1 at different positions.

[0044] In addition, it should be noted that when the multiple water bags 1 are at different heights, it means that the horizontal heights of the first preset water level lines 101 inside the multiple water bags 1 are also different. At this time, the multiple water bags 1 need to be grouped. The multiple water bags 1 at the same height can be connected in series in sequence. The multiple water bags 1 at different heights are not allowed to be connected in sequence, otherwise it will cause the situation of abnormal water replenishment. Moreover, the multiple water bags 1 at the same height can share a set of water replenishing mechanism 2 to be able to replenish water to the multiple water bags 1 at the same time.

[0045] In the second aspect of the present disclosure, a flameproof water screen is provided. Refer to Figures 1 to 17As shown, the explosion-proof water shed includes the water replenishing device in the above-mentioned embodiment, as well as a spraying device 4 and a fixing device 5. The water replenishing device has all the beneficial effects in the above-mentioned embodiment. The fixing device 5 is connected to the water replenishing device and the spraying device 4 for fixing the water replenishing device and the spraying device 4 in the roadway. In this way, the fixing device 5 can stably install the water replenishing device and the spraying device 4 in the coal mine roadway. When the explosion-proof water shed is fixed in the coal mine roadway, for example, when a coal dust explosion occurs in the roadway, the shock wave will break the water bag 1, and the water in the water bag 1 will block the gas generated by the shock wave and can extinguish the flame. The spraying device 4 can play an auxiliary role in extinguishing the fire. That is, when a flame occurs in the roadway, the spraying device 4 can perform a water spraying operation through devices such as a spraying pipe 410 (described in detail below) to further prevent the flame in the roadway from spreading further and can extinguish the fire in the roadway faster.

[0046] In some embodiments, referring to Figures 1 to 17 As shown, the spraying device 4 includes a second water supply pipe 410, a spraying pipe 420 and a triggering mechanism 430. The second water supply pipe 410 is provided with a stop valve 411; the spraying pipe 420 is connected to the second water supply pipe 410, and a plurality of spraying ports (not shown in the figure) are provided on the spraying pipe 420. The triggering mechanism 430 is connected to the stop valve 411 and includes a first state and a second state. In the first state, the stop valve 411 is closed, and in the second state, the stop valve 411 is open. The triggering mechanism 430 can be switched from the first state to the second state when impacted by air flow. In this way, when a strong air flow such as a shock wave occurs in the coal mine roadway, the air flow will force the triggering mechanism 430 to switch from the first state to the second state, and then the stop valve 411 can be switched from the closed state to the open state. At this time, the second water supply pipe 410 can be switched from an open circuit to a closed circuit, and the spraying pipe 420 can perform a spraying operation through the water supply of the second water supply pipe 410, thereby playing an auxiliary role in extinguishing the fire. Further, one end of the second water supply pipe 410 can also be connected to the external water supply pipe 6 mentioned in the above-mentioned embodiment, that is, the first water supply pipe 310 and the second water supply pipe 410 are jointly supplied with water through the external water supply pipe 6, thereby reducing the occupied space of the entire explosion-proof water shed in the coal mine roadway. In addition, the spraying pipe 420 can also be fixed to the coal mine roadway in any suitable manner, and the spraying method of the spraying pipe 420 can also be any suitable one. For example, reference can be made to Figure 6As shown, the spray pipe 420 can adopt a water curtain spray pipe, which can be made by welding and cutting steel pipes. A linear water spray orifice can be arranged parallel to the axial direction of the spray pipe on its circular surface. On both sides of the other surface symmetric to the linear water spray orifice, top screw seats 421 can be welded. A top screw rod 422 can be installed on the top screw seat 421. The top screw rod 422 can be used for quickly fixing and installing and removing the water curtain spray pipe. The top screw rod 422 can be installed inside the coal mine roadway. And one end of the water curtain spray pipe can be welded and blocked, and the other end can be provided with a hose interface connected to the second water supply pipe 410. In this connection mode, not only can the spray extinguishing effect be achieved when there is a fire in the coal mine roadway, but also the quick disassembly and assembly of the water curtain spray pipe can be realized, facilitating the maintenance function.

[0047] In addition, the trigger mechanism 430 mentioned in the above embodiment can also be constructed into any suitable structure. For example, the trigger mechanism 430 can include devices such as a smoke concentration sensor, a temperature sensor, etc. When the smoke concentration or temperature in the coal mine roadway exceeds the preset values of the smoke concentration sensor or the temperature sensor, the shut-off valve 411 can be automatically controlled to switch from the closed state to the open state, and then the water supply of the second water supply pipe 410 can be started. It should be noted that the above-mentioned smoke concentration sensor and temperature sensor are only exemplary descriptions, and the trigger mechanism provided by the present disclosure is not limited to the above embodiment. Specifically, the specific structure of the trigger mechanism 430 will be elaborated below, and no more details will be described here.

[0048] In some embodiments, referring to Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, the trigger mechanism 430 includes a rotating shaft 431, a connecting rod 432, a trigger plate 433 and a limiting member 434. The rotating shaft 431 is connected to the shut-off valve 411 and can rotate around its own axis; the connecting rod 432 is connected to the side wall of the rotating shaft 431; the trigger plate 433 is connected to the end of the connecting rod 432 far from the rotating shaft 431, and one side of the trigger plate 433 faces the extending direction of the roadway; the limiting member 434 can limit the connecting rod 432 when the rotating shaft 431 rotates. In this way, when a strong air flow such as a shock wave is generated due to a dust explosion in the coal mine roadway, the shock wave will impact one side of the trigger plate 433 facing the extending direction of the roadway, and then the trigger plate 433 can be blown down. That is to say, the trigger plate 433 will rotate clockwise or counterclockwise around the rotating shaft 431 along the Figure 7 plane direction of the drawing, that is, it can be understood that the shock wave of the dust explosion can impact from the Figure 7 left side to the right side, or it can also impact from the Figure 7The right side of [it] impacts towards the left side, and the impact directions of the two are opposite. No matter whether the trigger plate 433 rotates clockwise or counterclockwise, the connecting rod 432 will swing along with the trigger plate 433, thereby driving the rotating shaft 431 to rotate. And the rotating shaft 431 can be understood as the water gate shaft that already widely exists in the prior art. There is a flow channel in the water gate shaft that can connect or block the flow of water through the stop valve 411. That is to say, when the coal mine roadway is in a normal state where there is no dust explosion, the trigger plate 433 will be in Figure 7 its vertical state, the stop valve 411 is in the closed state, and water cannot flow through the flow channel of the water gate shaft to the spray pipe 420. When a dust explosion occurs in the coal mine roadway, the trigger plate 433 will be impacted by the airflow of the shock wave and swing Figure 7 clockwise or counterclockwise along the drawing plane direction of [it]. At this time, the flow channel of the water gate shaft is connected to the second water supply pipe 410, and the stop valve 411 is in the open state. At this time, water will flow through the second water supply pipe 410 to the spray pipe 420 to continuously supply water to the spray pipe 420. And, in order to ensure the stability during the water supply process, the connecting rod 432 can be limited by the limiting member 434. That is, it can be referred to Figure 6 and Figure 7 as shown. When both the connecting rod 432 and the trigger plate 433 rotate around the rotating shaft 431, a limiting member 434 can be provided on both opposite sides of the stop valve 411, thereby limiting the rotation angle of the connecting rod 432 and the trigger plate 433. For example, the rotation angle can be limited to the position where the trigger plate 433 is in the vertical state at the initial position (i.e., Figure 7 the position shown in [it]), and the maximum rotation angles can be 90° clockwise and counterclockwise respectively. Under the limitation of this rotation angle, the trigger plate 433 and the connecting rod 432 can ensure that the water gate shaft can be normally connected to the second water supply pipe 410 at the maximum rotation angle position, and thus water can be supplied to the spray pipe 420 through the second water supply pipe 410.

[0049] In addition, in order to further increase the swinging speed of the trigger plate 433 and the connecting rod 432 when impacted by the airflow of the shock wave to open the stop valve 411 more quickly, referring to Figure 6 and Figure 7 as shown, the trigger mechanism 430 can further include a counterweight 435 connected to the trigger plate 433. When the airflow impacts the trigger plate 433, the trigger plate 433 will swing more quickly under the action of the gravity of the counterweight 435. That is, it can be referred to Figure 6 and Figure 7As shown, when the counterweight 435 is located above the trigger plate 433, when the trigger plate 433 swings clockwise or counterclockwise around the rotating shaft 431, the counterweight 435 will drive the trigger plate 433 to swing faster under the action of centrifugal force and its own gravity, so that the water gate shaft can be fully opened faster, so that the second water supply pipe 410 can supply water to the spray pipe 420 faster.

[0050] It should be noted that when the trigger plate 433 is swung by the airflow of the shock wave and the stop valve 411 is in the open state to enable the second water supply pipe to supply water to the spray pipe 420, the trigger mechanism 430 can always be in the second state, that is, it can always spray water through the spray pipe 420. Under this limitation, when multiple airflows are generated due to continuous intermittent explosions of dust in the coal mine roadway, the spray pipe 420 can always spray the coal mine roadway, thereby preventing the continuous spread of flames. After the flames in the roadway are extinguished, the staff can go down to the roadway to manually restore the trigger plate 433 to stop the spray pipe 420 from spraying continuously.

[0051] In the above-mentioned embodiments, multiple spray devices 4 can be arranged at intervals in the coal mine roadway. For example, a group can be arranged every 3 meters in the extending direction of the roadway. In this arrangement, when a fire is caused by a dust explosion in the roadway, multiple groups of spray devices 4 can be used to extinguish the fire in the coal mine roadway at the same time.

[0052] In some embodiments, referring to Figures 1 to 3 and Figures 10 to 17 As shown, the fixing device 5 includes a mounting frame 510, a bracket 520 and a hook 530. Among them, the mounting frame 510 extends along the width direction of the roadway; the number of brackets 520 is two and they are respectively connected to both ends of the mounting frame 510 in the length direction. The bracket 520 is used to fix the mounting frame 510 in the roadway; the hook 530 is connected to the mounting frame 510 and the water bag 1. The number of hooks 530 is multiple and they are arranged at intervals along the length direction of the mounting frame 510. Each water bag 1 is connected to at least one hook 530. The hook 530 includes a first section 531, a second section 532 and a third section 533 connected in sequence. The first section 531 and the third section 533 are bent towards the same side relative to the second section 532. In this way, the two brackets 520 can be respectively connected to the opposite side walls in the coal mine roadway and connected to the mounting frame 510. Multiple water bags 1 can be connected to the mounting frame 510 through the hooks 530. Referring to Figure 3 As shown, the mounting frame 510 can be welded and processed from channel steel, and the channel steel opening can face upward in the roadway. The width of the mounting frame 510 can be the same as the width of the water bag. Moreover, both the first section 531 and the third section 533 of the hook 530 are bent towards the same side relative to the second section 532, that is Figure 10As shown in the figure, the upper end of the hook 530 is bent into a U shape, and the lower end is bent into a V shape. In this bent structure, when the hook 530 is connected to the mounting bracket 510, the first section 531 and the second section 532 of the hook 530 can be respectively attached to the mounting bracket 510, that is, the opposite side walls of the channel steel, while the third section 533 at the other end can be used to connect the water bag 1, and finally the Figure 3 As shown in the figure. In this connection method, when a shock wave of a dust explosion occurs in the roadway, the hook 530 can be stably connected to the mounting bracket 510 without being impacted by the shock wave and will not rotate relative to the mounting bracket 510. In this way, when the shock wave impacts the water bag 1 in the roadway, the water bag 1 can quickly break away from the hook 530 and fall to the ground and break, so as to prevent the spread of fire through the water in the water bag 1, or the shock wave can directly break the water bag 1 to extinguish the fire through the water in the water bag 1, thereby improving the effectiveness of the water bag 1 in extinguishing the fire.

[0053] In addition, the mounting bracket 510 and the bracket 520 mentioned in the above specific embodiments can also be connected by any suitable connection method. For example, reference can be made to Figure 3 、 Figures 12 to 17 As shown in the figure, the two brackets 520 at both ends of the mounting bracket 510 can be welded and processed from channel steel and round steel. The round steel of the bracket 520 can form an insertion end 521 for inserting into the hole of the coal mine roadway. Before installing the bracket 520, the position to be installed in the roadway can be selected according to technical requirements. After determining the position, it is ensured that the installation position of the bracket 520 is horizontal. After drilling in the roadway according to the installation position of the bracket 520, the insertion end 521 of the bracket 520 can be inserted into the hole of the roadway to complete the fixation of the bracket 520. After fixing the bracket 520, the mounting bracket 510 and the bracket 520 can be fixed by bolt connection, that is, as shown in Figure 12 and Figure 15 As shown in the figure, multiple first mounting holes 511 are respectively provided at both ends of the mounting bracket 510, and multiple second mounting holes 522 corresponding to the positions of the first mounting holes 511 are provided on the bracket 520. When the bracket 520 is connected to the mounting bracket 510, after the positions of the first mounting holes 511 and the second mounting holes 522 are corresponding one by one, bolts can be respectively passed through the first mounting holes 511 and the second mounting holes 522 and then tightened with nuts, thereby realizing the firm connection between the bracket 520 and the mounting bracket 510. In addition, in order to further improve the stability of the cooperation between the bracket 520 and the mounting bracket 510 after connection with the hook 530, reference can be made to Figure 3As shown, the channel opening of the bracket 520 can face downward, while the channel opening of the mounting bracket 510 can face upward. In this positional relationship, the first section 531 of the hook 530 can be attached to the inner side of the channel opening of the mounting bracket 510, and the second section 532 can be attached to the outer side of the channel opening of the mounting bracket 510 and the outer side of the channel opening of the bracket 520. Moreover, a position space for hanging the water bag 1 can be reserved on the inner side of the channel opening of the bracket 520, so as to facilitate the connection of the hook 530 to the water bag.

[0054] In some embodiments, referring to Figure 5 As shown, a U-shaped member 211 is provided on the outer side of the water storage tank 210. When the water storage tank 210 is connected to the mounting bracket 510, the inner side walls of the U-shaped member 211 are attached to the opposite side walls of the mounting bracket 510. In this way, the water storage tank 210 can be connected to the mounting bracket 510 through the U-shaped member 211 to fix the position of the water storage tank 210. And referring to Figure 5 As shown, the U-shaped member 211 on the water storage tank 210 can be designed with the notch facing downward. Through the notch of the U-shaped member 211, it can be inserted into the side wall of the mounting bracket 510. And after the inner side wall of the notch of the U-shaped member is attached to the mounting bracket 510, the situation of the water storage tank 210 moving relative to the mounting bracket 510 can also be reduced, thereby improving the stability of the installation of the water storage tank 210.

[0055] In some embodiments, referring to Figures 1 to 17 As shown, multiple rows of mounting brackets 510 are arranged at intervals along the length direction of the roadway. Both ends of each mounting bracket 510 in the length direction are connected to the bracket 520. In this way, multiple rows of mounting brackets 510 can jointly connect multiple water bags 1, and each mounting bracket 510 can be fixed in the coal mine roadway through two brackets 520 connected to both ends respectively. In this way, when a coal dust explosion occurs in the roadway, multiple water bags 1 can jointly extinguish the flame caused by the coal dust explosion to prevent the spread of the fire, thereby improving the fire extinguishing efficiency in the coal mine roadway.

[0056] In some embodiments, referring to Figure 3 As shown, in the vertical direction, the height of the bracket 520 is lower than the height of the mounting bracket 510. In this way, after the insertion end 521 of the bracket 520 is inserted into the hole in the roadway, the mounting bracket 510 located above the bracket 520 can be effectively supported, that is, the mounting bracket 510 will not directly fall into the roadway when the connection with the bracket 520 becomes loose. By supporting the mounting bracket 510 through the bracket 520, the stability of the installation of the mounting bracket 510 in the roadway can be effectively improved.

[0057] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0058] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0059] Furthermore, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A water replenishing device, characterized in that, Comprising: A plurality of water bags that are connected in sequence, and a first preset water level line is provided inside the water bags; A water replenishing mechanism, including a water storage tank, a water delivery pipe, and an air inlet pipe. A second preset water level line is provided inside the water storage tank, and the second preset water level line is higher than the first preset water level line. The two ends of the water delivery pipe are respectively connected to the water storage tank and the water bag, and the end of the water delivery pipe connected to the water storage tank is lower than the second preset water level line; the end of the air inlet pipe connected to the water storage tank is higher than the second preset water level line, and the end connected to the water bag is flush with the first preset water level line; And A water level control mechanism, including a first water supply pipe connected to the water storage tank and a sensor provided inside the water storage tank. The sensor is used to monitor the water volume inside the water storage tank, and the first water supply pipe is used to inject water into the water storage tank when the water level inside the water storage tank is lower than the second preset water level line.

2. The water replenishing device according to claim 1, wherein The first preset water level lines of the plurality of water bags are at the same height.

3. An explosion-proof water shed, characterized in that, Comprising the water replenishing device according to any one of claims 1-2, as well as a spraying device and a fixing device. The fixing device is connected to the water replenishing device and the spraying device for fixing the water replenishing device and the spraying device in a roadway.

4. The explosion - proof water curtain according to claim 3, characterized in that, The spraying device includes: A second water supply pipe provided with a stop valve; A spraying pipe connected to the second water supply pipe, and a plurality of spraying nozzles are provided on the spraying pipe; and A triggering mechanism connected to the stop valve. The triggering mechanism includes a first state and a second state. In the first state, the stop valve is closed, and in the second state, the stop valve is opened. The triggering mechanism can be switched from the first state to the second state when impacted by air flow.

5. The explosion-proof water curtain according to claim 4, characterized in that, The triggering mechanism includes: A rotating shaft connected to the stop valve and capable of rotating around its own axis; A connecting rod connected to the side wall of the rotating shaft; A triggering plate connected to the end of the connecting rod away from the rotating shaft, and one side of the triggering plate faces the extending direction of the roadway; and A limiting member that can limit the connecting rod when the rotating shaft rotates.

6. The explosion-proof water shed according to claim 3, characterized in that, The fixing device includes: An installation frame extending along the width direction of the roadway; Two brackets respectively connected to both ends of the installation frame in the length direction. The brackets are used to fix the installation frame in the roadway; and Hooks connected to the installation frame and the water bags. The number of hooks is multiple and they are arranged at intervals along the length direction of the installation frame. Each water bag is connected to at least one hook. The hook includes a first section, a second section, and a third section connected in sequence. The first section and the third section are bent towards the same side relative to the second section.

7. The explosion-proof water curtain according to claim 6, wherein, When the hook is connected to the installation frame, the first section and the second section respectively fit against the opposite side walls of the installation frame.

8. The explosion-proof water barrier according to claim 6, characterized in that, A U-shaped member is provided on the outer side of the water storage tank. When the water storage tank is connected to the installation frame, the inner side walls of the U-shaped member fit against the opposite side walls of the installation frame.

9. The explosion-proof water curtain according to claim 6, wherein, Multiple rows of the installation frames are arranged at intervals along the length direction of the roadway, and both ends of each installation frame in the length direction are connected to the brackets.

10. The explosion-proof water shed according to claim 9, characterized in that, Vertically, the height of the bracket is lower than that of the mounting frame.

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