Efficient fire-fighting foam ejector for coal mine fire extinguishing

Abstract

The utility model discloses an efficient fire-fighting foam ejector for coal mine fire extinguishing, and particularly relates to the technical field of fire-fighting equipment, the efficient fire-fighting foam ejector comprises a mounting plate, four wheels are mounted at the lower end of the mounting plate, and a remote control module for remotely controlling the wheels to work is mounted in the mounting plate; a foam generator is fixedly installed on the rear portion of the upper end of the installation plate, a steering assembly is further arranged on the front portion of the upper end of the installation plate, a foam spraying gun is arranged at the front end of the steering assembly, and an input hose is arranged at the input end of the foam generator. According to the efficient fire-fighting foam ejector for coal mine fire extinguishment, a user adjusts the angles of the foam ejection gun in the vertical direction and the horizontal direction by controlling the first steering motor and the second steering motor to work, and selects a proper angle to eject foam for fire extinguishment; the fire extinguishing efficiency is ensured while the safety of a user is ensured, and the safety and practicability of the foam ejector are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a high-efficiency fire fighting foam injector for extinguishing fire in coal mines. Background Art

[0002] As a world energy power, my country has been engaged in large-scale coal mining activities for a long time. The large amount of coal resources mined have contributed to my country's economic construction. Coal currently and will continue to play a security role in my country's energy system for a long time, and its dominant position in energy consumption will be difficult to change for a long time. Accidents often occur in the process of coal mining, especially fires caused by spontaneous combustion or electrical short circuits in coal mines. Coal mine fires are often small-scale when they occur. Because they cannot be extinguished in a timely and rapid manner, coal mine fires quickly expand, causing large property losses, and even causing more serious accidents such as gas explosions and mine collapses.

[0003] When fire needs to be extinguished in coal mines, air foam fire extinguishers are often used. This is a fire-fighting equipment mainly used to extinguish fires of oil, alcohol and other flammable liquids in oil depots, airports, petrochemical plants, paint factories, alcohol factories, etc. Its basic working principle is: when a fire occurs, it is connected to the fire hydrant through a water hose, that is, the water source is connected, and the proportioning mixer uses the water source pressure to extract the concentrated foam liquid from the fire extinguishing agent barrel, and then the foam spray gun automatically inhales air to form air foam for fire extinguishing.

[0004] Chinese patent document CN219985154U discloses a foam injector, which belongs to the technical field of foam injectors. It aims at the problems that the external holes and grooves of the foam injector are easily blocked and difficult to clean, and the foam generation effect is not good. The utility model comprises a shell, and two symmetrically distributed connecting pipes are fixed to the side wall of one side of the shell, one end of the connecting pipe is connected to the inside of the shell, one end of one connecting pipe away from the shell is fixed with a feed pipe, and one end of the other connecting pipe is fixed with a connected discharge pipe, a sealing glass body is fixed to the inner side wall of the shell, the sealing glass body is located on one side of the discharge pipe, and an injection pipe is arranged inside the shell; the utility model can effectively clean the honeycomb holes through the setting of the cleaning component, thereby avoiding the blockage of the honeycomb holes caused by dust or impurities, and preventing the foam generation from being affected by poor air intake, and is more practical and simple and convenient for the staff to operate.

[0005] However, in actual use, coal mine fires are relatively dangerous, and explosions, collapses, etc. may occur at any time. The foam injector requires manual operation and cannot guarantee the safety of users. Therefore, the foam injector is not suitable for coal mine fire extinguishing environments. Utility Model Content

[0006] The main purpose of the utility model is to provide a high-efficiency fire-fighting foam injector for coal mine fire extinguishing, which can effectively solve the problems raised in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A high-efficiency fire-fighting foam sprayer for extinguishing coal mine fires comprises a mounting plate, four wheels are mounted on the lower end of the mounting plate, a remote control module for remotely controlling the operation of the wheels is mounted inside the mounting plate, a foam generator is fixedly mounted on the upper rear portion of the mounting plate, a steering assembly is also provided on the upper front portion of the mounting plate, a foam spray gun is provided on the front end of the steering assembly, an input hose is provided on the input end of the foam generator, and an output hose is provided between the output end of the foam generator and the rear end of the foam spray gun.

[0009] Preferably, the steering assembly includes a cross-shaped plate, two support rods are fixedly installed on the lower end of the horizontal part of the cross-shaped plate, the lower ends of the two support rods are fixedly connected to the mounting plate, the front ends of the four branches of the cross-shaped plate are fixedly connected to connecting plates, the ends of the two connecting plates located on the left and right sides that are close to each other are rotatably connected to rotating shafts, and a steering ball is commonly provided between the two rotating shafts.

[0010] Preferably, a second steering motor is provided at a position corresponding to the steering assembly at the upper front end of the mounting plate, and a first steering motor is also provided on one side of the upper front end of the mounting plate. The output directions of the second steering motor and the first steering motor are perpendicular, and the output end of the first steering motor is fixedly connected to the rotating shaft on the corresponding side.

[0011] Preferably, a horizontal annular groove is provided on the outer surface of the steering ball.

[0012] Preferably, a second arc plate is provided between the two connecting plates located on the upper and lower sides, the second arc plate is rotatably connected to the corresponding connecting plate, and the output end of the second steering motor is fixedly connected to the second arc plate, and a first arc plate is provided between the two connecting plates located on the left and right sides, and the first arc plate is fixedly connected to the corresponding rotating shaft.

[0013] Preferably, two arc blocks are slidably installed on the front and rear sides of the inner surface of the annular groove, and a through groove is commonly provided between the front and rear sides of the inner surface of the annular groove. The inner surface of the through groove is arc-shaped, and the width of the front and rear sides of the inner surface of the through groove is greater than the middle part.

[0014] Preferably, an extension tube is provided at the rear end of the foam spray gun, the extension tube passes through the arc block and the through slot, the extension tube is rotatably mounted between the upper and lower side walls of the inner surface of the through slot, and the rear end of the extension tube is connected to the output hose.

[0015] Preferably, the outer surface of the second arc plate is provided with a second arc groove running through front and back, the outer surface of the first arc plate is provided with a first arc groove running through front and back, and the outer front surface of the extension tube passes through the overlap of the first arc groove and the second arc groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. When the fire foam sprayer is working, the user can use the remote control to control the driving wheel to move, so that the user can keep a safe distance from the fire location to avoid being affected by the coal mine fire, thereby improving safety;

[0018] 2. The fire foam sprayer can rotate the first curved plate in the vertical direction with the steering sphere as the center when the user operates the first steering motor, and then rotate the steering sphere in the vertical direction through the rotating shaft, so that the foam spray gun can adjust the rotation angle in the vertical direction; when the user operates the second steering motor, the first curved plate can rotate in the horizontal direction with the steering sphere as the center, and the gap between the first curved groove and the second curved groove can limit the position of the foam spray gun, and adjust the rotation angle of the foam spray gun in the horizontal direction, so that the foam spray gun can make a rotation adjustment action at any spatial angle, and select a suitable angle to spray foam for fire extinguishing, which ensures the safety of the user while ensuring the fire extinguishing efficiency, thereby increasing the safety and practicality of the foam sprayer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic structural diagram of the overall front part of the utility model;

[0021] Figure 3 An exploded view of the steering assembly of the present utility model;

[0022] Figure 4 It is a schematic diagram of the structure inside the steering sphere of the utility model.

[0023] In the figure: 1, mounting plate; 2, wheel; 3, foam generator; 4, input hose; 5, output hose; 6, steering assembly; 7, foam spray gun; 8, second steering motor; 9, first steering motor; 61, cross plate; 62, connecting plate; 63, support rod; 64, steering ball; 641, annular groove; 65, rotating shaft; 66, first arc plate; 661, first arc groove; 67, second arc plate; 671, second arc groove; 68, arc block; 69, through groove; 71, extension tube. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a high-efficiency fire foam sprayer for coal mine fire extinguishing, including a mounting plate 1, four wheels 2 are installed at the lower end of the mounting plate 1, and a remote control module for remotely controlling the wheels 2 is installed inside the mounting plate 1. When the device is working, the user can stay away from the fire source and remotely use the remote control to control the mounting plate 1 to drive the wheels 2 to move and work. The system of the remote control module is the prior art. A foam generator 3 is fixedly installed at the rear of the upper end of the mounting plate 1. The foam generator 3 is the prior art and is a fire extinguishing device used to generate foam during the fire extinguishing process and spray the foam to the fire scene. Its working principle is that the foam generator 3 forms foam by mixing the foam liquid with air or gas and spraying it through a nozzle, and then covers the surface of the fire with the foam, which plays the role of extinguishing the fire and isolating the fire source. The foam generator 3 usually uses a specific foam stabilizer or surfactant to maintain the stability and fire extinguishing effect of the foam during the foam spraying process. The insulating and heat-insulating properties of foam enable the foam generator to have a good fire-extinguishing effect in situations such as extinguishing liquid fires and oil fires. The shell of the foam generator 3 needs to be designed with fire-proof and explosion-proof materials.

[0026] Furthermore, a steering assembly 6 is provided at the front of the upper end of the mounting plate 1, and a foam spray gun 7 is provided at the front end of the steering assembly 6. The foam spray gun 7 is a prior art and is a spray device for spraying foam to extinguish fire. The steering assembly 6 is used to control the direction of the foam spray gun 7 to spray fire sources at different angles. An input hose 4 is provided at the input end of the foam generator 3, and the input hose 4 can input the raw materials needed for the foam generator 3 to work. An output hose 5 is provided between the output end of the foam generator 3 and the rear end of the foam spray gun 7. The fire foam produced by the foam generator 3 will be input into the foam spray gun 7 by the output hose 5 for spraying.

[0027] Specifically, Figure 3 As shown, the steering assembly 6 includes a cross-shaped plate 61, and two support rods 63 are fixedly installed at the lower end of the horizontal part of the cross-shaped plate 61. The lower ends of the two support rods 63 are fixedly connected to the mounting plate 1, and the front ends of the four branches of the cross-shaped plate 61 are fixedly connected to the connecting plate 62. The two connecting plates 62 located on the left and right sides are rotatably connected to the rotating shaft 65 at one end close to each other. A steering ball 64 is commonly provided between the two rotating shafts 65, and the connection relationship between the rotating shaft 65 and the steering ball 64 is a fixed connection.

[0028] Furthermore, a second steering motor 8 is provided at a position corresponding to the steering assembly 6 at the upper front end of the mounting plate 1, and the second steering motor 8 is fixedly connected to the mounting plate 1. A first steering motor 9 is also provided on one side of the upper front end of the mounting plate 1, and the first steering motor 9 is fixed to the mounting plate 1 through a connecting rod at its lower end. The output directions of the second steering motor 8 and the first steering motor 9 are perpendicular, and the output end of the first steering motor 9 is fixedly connected to the rotating shaft 65 on the corresponding side. The output end of the first steering motor 9 is placed horizontally, so when the first steering motor 9 is working, it can drive the steering ball 64 to rotate with the rotating shaft 65 as the axis.

[0029] In order to control the foam spray gun 7 to spray in any direction, a second curved plate 67 is provided between the two connecting plates 62 on the upper and lower sides. The second curved plate 67 is rotatably connected to the corresponding connecting plate 62, and the output end of the second steering motor 8 is fixedly connected to the second curved plate 67. Therefore, the second steering motor 8 can rotate the second curved plate 67 left and right when working. A first curved plate 66 is provided between the two connecting plates 62 on the left and right sides. The first curved plate 66 is fixedly connected to the corresponding rotating shaft 65. Therefore, the first steering motor 9 will also rotate with the first curved plate 66 when working.

[0030] It should be noted that the center positions of the first arc plate 66 and the second arc plate 67 are the same as those of the steering ball 64 .

[0031] Further, such as Figure 4As shown, the outer surface of the steering ball 64 is provided with a horizontal annular groove 641, and two arc blocks 68 are slidably installed on the front and rear sides of the inner surface of the annular groove 641. A through groove 69 is also provided between the front and rear sides of the inner surface of the annular groove 641. The inner surface of the through groove 69 is arc-shaped, and the width of the front and rear sides of the inner surface of the through groove 69 is greater than the middle part. The rear end of the foam spray gun 7 is provided with an extension pipe 71, and the foam spray gun 7 is fixedly connected to the extension pipe 71. The extension pipe 71 passes through the arc block 68 and the through groove 69. The extension pipe 71 is rotatably installed between the upper and lower side walls of the inner surface of the through groove 69, and the rear end of the extension pipe 71 is connected to the output hose 5. The two arc blocks 68 are symmetrical in front and back, and the extension pipe 71 is movably connected to the arc block 68. The extension pipe 71 can rotate left and right in the through groove 69 with the two arc blocks 68.

[0032] In addition, the outer surface of the second curved plate 67 is provided with a second curved groove 671 that runs through the front and back, and the outer surface of the first curved plate 66 is provided with a first curved groove 661 that runs through the front and back. The front surface of the outer surface of the extension tube 71 passes through the overlap of the first curved groove 661 and the second curved groove 671. Therefore, the first curved groove 661 and the second curved groove 671 can further limit the position of the extension tube 71: when the first steering motor 9 is working, it can drive the first curved plate 66 to rotate in the vertical direction with the steering ball 64 as the center, and then by rotating The shaft 65 rotates with the steering ball 64 in the vertical direction, so that the foam spraying gun 7 can adjust the rotation angle in the vertical direction; when the second steering motor 8 is working, it can rotate with the first arc plate 66 in the horizontal direction with the steering ball 64 as the center, and the gap between the first arc groove 661 and the second arc groove 671 can limit the position of the foam spraying gun 7, and adjust the rotation angle of the foam spraying gun 7 in the horizontal direction, so that the foam spraying gun 7 can make a rotation adjustment action at any spatial angle, and select a suitable angle to spray foam for fire extinguishing.

[0033] The working principle of the utility model is as follows: when the fire foam sprayer is working, the user can safely use the remote control to remotely control the mounting plate 1 to drive the wheels 2 to move the device to avoid being affected by the fire;

[0034] At the same time, when the first steering motor 9 is working, it can drive the first curved plate 66 to rotate in the vertical direction with the steering ball 64 as the center, and then drive the steering ball 64 to rotate in the vertical direction through the rotating shaft 65, so that the foam spray gun 7 can adjust the rotation angle in the vertical direction; when the second steering motor 8 is working, it can drive the first curved plate 66 to rotate in the horizontal direction with the steering ball 64 as the center, and the gap between the first curved groove 661 and the second curved groove 671 can limit the position of the foam spray gun 7, and adjust the rotation angle of the foam spray gun 7 in the horizontal direction, so that the foam spray gun 7 can make a rotation adjustment action at any spatial angle, and select a suitable angle to spray foam for fire extinguishing.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency fire foam injector for coal mine fire extinguishing, comprising a mounting plate (1), characterized in that: Four wheels (2) are mounted at the lower end of the mounting plate (1), a remote control module for remotely controlling the operation of the wheels (2) is mounted inside the mounting plate (1), a foam generator (3) is fixedly mounted at the rear of the upper end of the mounting plate (1), a steering assembly (6) is also provided at the front of the upper end of the mounting plate (1), a foam spray gun (7) is provided at the front end of the steering assembly (6), an input hose (4) is provided at the input end of the foam generator (3), and an output hose (5) is provided between the output end of the foam generator (3) and the rear end of the foam spray gun (7).

2. The high-efficiency fire foam injector for coal mine fire extinguishing according to claim 1 is characterized in that: The steering assembly (6) comprises a cross-shaped plate (61), two support rods (63) are fixedly mounted at the lower end of the horizontal part of the cross-shaped plate (61), the lower ends of the two support rods (63) are fixedly connected to the mounting plate (1), the front ends of the four branches of the cross-shaped plate (61) are fixedly connected to connecting plates (62), the ends of the two connecting plates (62) located on the left and right sides close to each other are rotatably connected to rotating shafts (65), and a steering ball (64) is provided between the two rotating shafts (65).

3. A high-efficiency fire foam injector for coal mine fire extinguishing according to claim 2, characterized in that: A second steering motor (8) is provided at a position of the upper front portion of the mounting plate (1) corresponding to the steering assembly (6), and a first steering motor (9) is also provided at one side of the upper front portion of the mounting plate (1). The output directions of the second steering motor (8) and the first steering motor (9) are perpendicular, and the output end of the first steering motor (9) is fixedly connected to the rotating shaft (65) on the corresponding side.

4. The high-efficiency fire foam injector for coal mine fire extinguishing according to claim 3 is characterized in that: The outer surface of the steering ball (64) is provided with a horizontal annular groove (641).

5. A high-efficiency fire-fighting foam injector for coal mine fire extinguishing according to claim 4, characterized in that: A second arc plate (67) is provided between the two connecting plates (62) located at the upper and lower sides, the second arc plate (67) is rotatably connected to the corresponding connecting plate (62), and the output end of the second steering motor (8) is fixedly connected to the second arc plate (67), and a first arc plate (66) is provided between the two connecting plates (62) located at the left and right sides, and the first arc plate (66) is fixedly connected to the corresponding rotating shaft (65).

6. A high-efficiency fire-fighting foam injector for coal mine fire extinguishing according to claim 5, characterized in that: Two arc blocks (68) are slidably mounted on both the front and rear sides of the inner surface of the annular groove (641), and a through groove (69) is also provided between the front and rear sides of the inner surface of the annular groove (641). The inner surface of the through groove (69) is arc-shaped, and the width of the front and rear sides of the inner surface of the through groove (69) is greater than that of the middle part.

7. A high-efficiency fire-fighting foam injector for coal mine fire extinguishing according to claim 6, characterized in that: The rear end of the foam spray gun (7) is provided with an extension pipe (71), the extension pipe (71) passes through the arc block (68) and the through groove (69), the extension pipe (71) is rotatably mounted between the upper and lower side walls of the inner surface of the through groove (69), and the rear end of the extension pipe (71) is connected to the output hose (5).

8. The high-efficiency fire foam injector for coal mine fire extinguishing according to claim 7, characterized in that: The outer surface of the second arc plate (67) is provided with a second arc groove (671) extending from front to back, and the outer surface of the first arc plate (66) is provided with a first arc groove (661) extending from front to back, and the outer front surface of the extension tube (71) passes through the overlapping portion of the first arc groove (661) and the second arc groove (671).

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