An adaptive fire-retardant foam injection device for gob areas

Abstract

The application discloses a kind of self-adapting fire-retardant foam filling devices for goaf, it is related to the field of goaf fire-retardant foam filling, including installation box, fire-retardant foam filling machine main body is arranged on the installation box, the self-adapting fire-retardant foam filling device for goaf, by industrial vision camera, using visual algorithm can quickly and accurately locate the gap position of goaf sealing component, and positioning data is transmitted to controller.Controller according to data, coordinated control first drive mechanism, second drive mechanism, first moving mechanism, second moving mechanism and first telescopic drive piece run.Through multiple mechanisms cooperation, filling head realizes multidimensional flexible movement and angle adjustment in space, adapts to any filling position.Precise positioning and adaptive adjustment ensure that fire-retardant foam can fill gap fully, effectively improve the fire-retardant and sealing effect of goaf, while further improve the efficiency of filling.

Description

Technical Field

[0001] This invention relates to flame-retardant foam injection technology for goaf areas, specifically to an adaptive flame-retardant foam injection device for goaf areas. Background Technology

[0002] In mining operations such as coal mining, goaf areas are a crucial component. Goaf areas are the spaces left after underground mineral deposits are extracted. If these spaces are not properly managed, they can pose numerous safety hazards, with fire and gas leaks being particularly prominent issues. To prevent fires and harmful gas leaks, goaf areas typically require sealing, and filling the gaps in the sealing components is a critical step.

[0003] Currently, the injection of flame-retardant foam into the gaps of sealing components in goaf areas mainly relies on manual operation. Operators first need to measure and mark the gap locations, then manually adjust the position and angle of the injection equipment to align the injection head with the gap for foam injection. However, this method has several drawbacks. Because the entire injection process requires repeated measurement and adjustment of the injection head position and angle, especially when dealing with large-area goaf sealing component injection tasks, operators need to perform high-intensity work for extended periods. This is not only labor-intensive but also time-consuming. Furthermore, the need for manual coordination between different stages results in slow response times, leading to a long overall injection cycle. This fails to meet the efficiency requirements of large-scale goaf treatment, thus increasing production costs. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptive flame-retardant foam injection device for goaf areas, so as to solve the problems of low injection efficiency and poor injection effect in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adaptive flame-retardant foam injection device for goaf areas, comprising an installation box, on which a flame-retardant foam injection machine body is mounted, an installation plate is slidably connected to the top of the installation box, a first moving mechanism connected to the installation box is provided on one side of the installation plate, the first moving mechanism is used to drive the installation plate to move, an installation pipe is rotatably connected to the installation plate, and a first transmission mechanism connected to the installation plate is driven to the outer surface of the installation pipe, the first transmission mechanism is used to drive the installation pipe to rotate;

[0006] One end of the mounting tube is fixedly connected to a transmission frame, and a transmission block is slidably connected inside the transmission frame. A second moving mechanism is provided on the transmission block, which is used to drive the transmission block to move. A transmission plate is fixedly connected to one side of the transmission block, and a first telescopic drive member is fixedly connected to the transmission plate. The output end of the first telescopic drive member is fixedly connected to a mounting frame. A mounting shaft is rotatably connected inside the mounting frame. A second transmission mechanism connected to the mounting frame is driven to the outer surface of the mounting shaft. The second transmission mechanism is used to drive the mounting shaft to rotate. A mounting block is fixedly connected to the outer surface of the mounting shaft, and an injection head is fixedly connected to the mounting block. The outer surface of the injection head is connected to the main body of the flame-retardant foam injection machine through a connecting mechanism.

[0007] An industrial vision camera is fixedly connected to one side of the mounting frame. A controller is provided on the mounting box. The controller is electrically connected to the industrial vision camera. The controller is also electrically connected to the first transmission mechanism, the second transmission mechanism, the first moving mechanism, the second moving mechanism, and the first telescopic drive component.

[0008] Furthermore, the first moving mechanism includes a guide column that is slidably connected to the mounting plate, and a second telescopic drive member that is fixedly connected to the mounting plate is fixedly connected to the top of the mounting box.

[0009] Furthermore, the first transmission mechanism includes a first rotation drive member fixedly connected to the mounting plate, the output end of the first rotation drive member is fixedly connected to a drive shaft, the outer surface of the drive shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is meshed with a second gear fixedly sleeved to the mounting shaft.

[0010] Furthermore, the second moving mechanism includes a second rotating drive member fixedly connected to the transmission frame, and the output end of the second rotating drive member is fixedly connected to a threaded rod rotatably connected to the transmission frame. The outer surface of the threaded rod is threadedly engaged with the transmission block, and a guide rod fixedly connected to the transmission frame is slidably connected to the transmission block.

[0011] Furthermore, the second transmission mechanism includes a third telescopic drive member fixedly connected to the mounting frame, the output end of the third telescopic drive member being fixedly connected to a transmission rack slidably connected to the mounting frame, and one side of the transmission rack being meshed with a transmission gear fixedly sleeved to the mounting tube.

[0012] Furthermore, the connecting mechanism includes a first connecting pipe fixedly connected to the output end of the flame-retardant foam injection machine body, a second connecting pipe fixedly connected to one end of the first connecting pipe and rotatably connected to the mounting pipe, a third connecting pipe fixedly connected to the mounting pipe, and a hose fixedly connected to the injection head at one end of the third connecting pipe.

[0013] Furthermore, the bottom of the mounting box is fixedly connected with multiple casters.

[0014] Furthermore, the installation box is provided with a storage cavity, which contains spare parts and tools for maintenance and repair, and the storage cavity is provided with an openable and closable sealed door.

[0015] Compared with the prior art, the adaptive flame-retardant foam injection device for goaf areas provided by the present invention has the following beneficial effects:

[0016] Industrial vision cameras and visual algorithms enable rapid and precise location of gaps in the sealing components of the goaf, transmitting the location data to the controller. Based on this data, the controller coordinates the operation of the first transmission mechanism, the second transmission mechanism, the first moving mechanism, the second moving mechanism, and the first telescopic drive component. This multi-mechanism collaboration allows the injection head to move flexibly in multiple dimensions and adjust its angle in space, adapting to any injection position. Precise positioning and adaptive adjustment ensure that the flame-retardant foam fully fills the gaps, effectively improving the flame-retardant and sealing effect of the goaf and providing reliable protection for safe production in the goaf.

[0017] This invention's device achieves a highly automated operation process. Operators only need to move the installation box near the goaf sealing component; subsequent operations such as gap positioning, injection head position and angle adjustment, and flame-retardant foam injection are all automatically controlled by the controller based on positioning data from an industrial vision camera. This eliminates the need for repeated manual measurement and adjustment of the injection head position and angle, significantly reducing manual operation time and labor intensity. Simultaneously, the coordinated operation of each mechanism ensures rapid response and precise movements, enabling quick completion of the injection operation and significantly improving injection efficiency. This highly efficient automated operation method is even more advantageous when dealing with injection tasks for large-area goaf sealing components, effectively shortening the construction cycle and reducing production costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a first perspective view of the external structure of the present invention;

[0020] Figure 2 This is a second perspective view of the external structure of the present invention;

[0021] Figure 3 This is a third perspective view of the external structure of the present invention;

[0022] Figure 4 For the present invention Figure 2 A magnified view of A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Mounting box; 2. Flame-retardant foam injection machine body; 3. Mounting plate; 4. Mounting pipe; 5. Transmission frame; 6. Transmission block; 7. Transmission plate; 8. First telescopic drive component; 9. Mounting frame; 10. Mounting shaft; 11. Mounting block; 12. Injection head; 13. Industrial vision camera; 14. Controller; 21. Guide column; 22. Second telescopic drive component; 31. First rotation drive component; 32. Drive shaft; 33. First gear; 34. Second gear; 41. Second rotation drive component; 42. Threaded rod; 51. Third telescopic drive component; 52. Transmission rack; 53. Transmission gear; 61. First connecting pipe; 62. Second connecting pipe; 63. Third connecting pipe; 64. Hoses. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example

[0027] Please see Figures 1 to 4 As shown, the present invention provides an adaptive flame-retardant foam injection device for goaf areas, including an installation box 1, a flame-retardant foam injection machine body 2 on the installation box 1, an installation plate 3 slidably connected to the top of the installation box 1, a first moving mechanism connected to the installation box 1 on one side of the installation plate 3, the first moving mechanism being used to drive the installation plate 3 to move, an installation pipe 4 rotatably connected to the installation plate 3, and a first transmission mechanism connected to the installation plate 3 being driven to rotate the installation pipe 4 on the outer surface of the installation pipe 4;

[0028] One end of the mounting tube 4 is fixedly connected to a transmission frame 5. A transmission block 6 is slidably connected inside the transmission frame 5. A second moving mechanism is provided on the transmission block 6. The second moving mechanism is used to drive the transmission block 6 to move. A transmission plate 7 is fixedly connected to one side of the transmission block 6. A first telescopic drive member 8 is fixedly connected to the transmission plate 7. The first telescopic drive member 8 is an electric telescopic rod or an electric hydraulic rod. An installation frame 9 is fixedly connected to the output end of the first telescopic drive member 8. An installation shaft 10 is rotatably connected inside the installation frame 9. A second transmission mechanism connected to the installation frame 9 is connected to the outer surface of the installation shaft 10. The second transmission mechanism is used to drive the installation shaft 10 to rotate. An installation block 11 is fixedly connected to the outer surface of the installation shaft 10. An injection head 12 is fixedly connected to the installation block 11. The outer surface of the injection head 12 is connected to the main body 2 of the flame-retardant foam injection machine through a connecting mechanism.

[0029] An industrial vision camera 13 is fixedly connected to one side of the mounting frame 9. A controller 14 is installed on the mounting box 1. The controller 14 is electrically connected to the industrial vision camera 13. The controller 14 is also electrically connected to the first transmission mechanism, the second transmission mechanism, the first moving mechanism, the second moving mechanism, and the first telescopic drive component 8. The industrial vision camera 13 is existing technology. It can locate the gap position of the goaf sealing component through a vision algorithm and transmit the location data to the controller 14. The controller 14 controls the operation of the electric components on the first transmission mechanism, the second transmission mechanism, the first moving mechanism, the second moving mechanism, and the first telescopic drive component 8 based on the location data. This technology is existing intelligent control technology, so it will not be described in detail here.

[0030] The first moving mechanism includes a guide column 21 that is slidably connected to the mounting plate 3. The top of the mounting box 1 is fixedly connected to a second telescopic drive component 22 that is fixedly connected to the mounting plate 3. The second telescopic drive component 22 is an electric telescopic rod or an electric hydraulic rod.

[0031] The first transmission mechanism includes a first rotation drive 31 fixedly connected to the mounting plate 3. The first rotation drive 31 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. The output end of the first rotation drive 31 is fixedly connected to a drive shaft 32. A first gear 33 is fixedly sleeved on the outer surface of the drive shaft 32. A second gear 34 fixedly sleeved on the outer surface of the first gear 33 is meshed with the mounting tube 4. The first rotation drive 31 drives the drive shaft 32 to rotate, and the drive shaft 32 drives the mounting tube 4 to rotate through the first gear 33 and the second gear 34.

[0032] The second moving mechanism includes a second rotation drive member 41 fixedly connected to the transmission frame 5. The output end of the second rotation drive member 41 is fixedly connected to a threaded rod 42 rotatably connected to the transmission frame 5. The outer surface of the threaded rod 42 is threadedly engaged with the transmission block 6. A guide rod fixedly connected to the transmission frame 5 is slidably connected to the transmission block 6. The threaded rod 42 is driven to rotate by the second rotation drive member 41, and the threaded rod 42 drives the transmission block 6 to move.

[0033] The second transmission mechanism includes a third telescopic drive member 51 fixedly connected to the mounting frame 9. The third telescopic drive member 51 is an electric telescopic rod or an electric hydraulic rod. The output end of the third telescopic drive member 51 is fixedly connected to a transmission rack 52 that is slidably connected to the mounting frame 9. One side of the transmission rack 52 is meshed with a transmission gear 53 that is fixedly sleeved with the mounting shaft 10. The third telescopic drive member 51 drives the transmission rack 52 to move, the transmission rack 52 drives the transmission gear 53 to rotate, and the transmission gear 53 drives the mounting shaft 10 to rotate.

[0034] The connecting mechanism includes a first connecting pipe 61 fixedly connected to the output end of the flame-retardant foam injection machine body 2, a second connecting pipe 62 fixedly connected to one end of the first connecting pipe 61 and rotatably connected to the mounting pipe 4, a third connecting pipe 63 fixedly connected to the mounting pipe 4, and a hose 64 fixedly connected to the injection head 12 at one end of the third connecting pipe 63.

[0035] The bottom of the mounting box 1 is fixedly connected with multiple casters.

[0036] The installation box 1 is equipped with a storage cavity containing spare parts and tools for maintenance and repair, and the storage cavity is equipped with an openable and closable sealed door.

[0037] First, the mounting box 1 is moved to the location of the goaf sealing component. Then, a visual algorithm is used to locate the gap position of the goaf sealing component, and the positioning data is transmitted to the controller 14. The controller 14 controls the operation of the electric components on the first transmission mechanism, the second transmission mechanism, the first moving mechanism, the second moving mechanism, and the first telescopic drive 8 based on the positioning data. Then, the second telescopic drive 22 drives the mounting plate 3 to move, and the first rotation drive 31 drives the drive shaft 32 to rotate. The drive shaft 32 drives the mounting tube 4 to rotate through the first gear 33 and the second gear 34. The mounting tube 4 drives the transmission frame 5 to rotate, and the transmission frame 5 drives the transmission block 6 and the transmission plate 7 to rotate. The transmission plate 7 drives the injection head 12 on the mounting frame 9 to rotate, so that the injection head 12 moves to the corresponding angle. Then, the second rotation drive 41 drives the threaded rod 42 to rotate, and the threaded rod 42 drives the transmission plate 7 and the mounting frame 9 to move, thereby moving the injection head 12 to the injection gap position. When the moving distance is insufficient, the first telescopic drive 8 drives the mounting plate 3 to rotate. The mounting frame 9 is moved, thereby increasing the distance between the mounting frame 9 and the filling head 12, allowing the filling head 12 to move to the filling position. Simultaneously, the third telescopic drive component 51 drives the transmission rack 52 to move, which in turn drives the transmission gear 53 to rotate. The transmission gear 53 then drives the mounting shaft 10 to rotate, which in turn drives the mounting block 11 and the filling head 12 to rotate, thus adjusting the filling angle of the filling head 12. Once adjusted to the designated filling position, the flame-retardant foam filling machine body 2 begins operation. The installation pipe 4 is filled through the first connecting pipe 61 and the second connecting pipe 62. Then, the installation pipe 4 supplies material to the filling head 12 through the third connecting pipe 63 and the hose 64. At this time, the filling head 12 starts to spray flame-retardant foam. The flame-retardant foam fills the gaps in the sealing structure. Through the above synergistic effect, the filling head 12 can adapt to any filling position, thereby realizing the automatic filling of flame-retardant foam into the sealing structure of the goaf, which greatly improves the filling efficiency and the filling effect, and achieves effective flame retardancy and sealing.

[0038] Working principle:

[0039] Device movement: Using multiple casters fixedly connected to the bottom of the mounting box 1, the entire device is moved to the location of the goaf sealing component.

[0040] Gap positioning: An industrial vision camera 13 fixedly connected to one side of the mounting frame 9 uses a vision algorithm to accurately locate the gap position of the sealing component in the goaf, and transmits the positioning data to the controller 14 set on the mounting box 1.

[0041] Mounting plate 3 moves: Controller 14 controls the first moving mechanism to operate according to positioning data. In the first moving mechanism, the second telescopic drive component 22 (electric telescopic rod or electric hydraulic rod) fixedly connected to the top of the mounting box 1 works, driving the mounting plate 3 on the guide column 21 that is slidably connected to the mounting plate 3 to move, so that the mounting plate 3 reaches the appropriate position.

[0042] The mounting tube 4 rotates: The controller 14 controls the operation of the first transmission mechanism. In the first transmission mechanism, the first rotation drive 31 (servo motor) fixedly connected to the mounting plate 3 is started, and its forward and reverse rotation and rotation angle are controlled by the PLC programming program. The first rotation drive 31 drives the drive shaft 32 fixedly connected to the output end to rotate, and the first gear 33 on the outer surface of the drive shaft 32 rotates accordingly. The first gear 33 meshes with the second gear 34 fixedly sleeved with the mounting tube 4, thereby driving the mounting tube 4 to rotate.

[0043] The transmission frame 5 and its components rotate: the installation tube 4 rotates, causing the transmission frame 5, which is fixedly connected to one end, to rotate. The transmission frame 5 drives the transmission block 6, which is slidably connected inside, and the transmission plate 7, which is fixedly connected to the transmission block 6, to rotate. The transmission plate 7 drives the installation frame 9, which is fixedly connected to it, and the filling head 12 on the installation frame 9 to rotate, so that the filling head 12 moves to the corresponding angle.

[0044] The transmission block 6 moves: The controller 14 controls the operation of the second moving mechanism. In the second moving mechanism, the second rotation drive 41, which is fixedly connected to the transmission frame 5, is activated, driving the threaded rod 42, which is fixedly connected to the output end, to rotate. The threaded rod 42 is threadedly engaged with the transmission block 6, and a guide rod, which is fixedly connected to the transmission frame 5, is slidably connected to the transmission block 6. Under the guidance of the guide rod, the threaded rod 42 drives the transmission block 6 to move, and the transmission block 6 drives the transmission plate 7 and the mounting frame 9 to move, moving the injection head 12 to the vicinity of the injection gap.

[0045] Secondary movement of mounting frame 9: When the above-mentioned movement distance is insufficient, controller 14 controls the first telescopic drive component 8 (electric telescopic rod or electric hydraulic rod) to work. The output end of the first telescopic drive component 8 drives the mounting frame 9 to move, increasing the distance between the mounting frame 9 and the injection head 12, so that the injection head 12 can be accurately moved to the injection position.

[0046] Injection head 12 angle adjustment: Controller 14 controls the operation of the second transmission mechanism. In the second transmission mechanism, the third telescopic drive component 51 (electric telescopic rod or electric hydraulic rod) fixedly connected to the mounting frame 9 is activated, driving the transmission rack 52 fixedly connected to the output end to slide on the mounting frame 9. The transmission rack 52 meshes with the transmission gear 53 fixedly sleeved with the mounting shaft 10, thereby driving the transmission gear 53 to rotate. The transmission gear 53 drives the mounting shaft 10 to rotate, and the mounting shaft 10 drives the mounting block 11 on the outer surface and the injection head 12 on the mounting block 11 to rotate, adjusting the injection angle of the injection head 12 to the specified position.

[0047] Flame-retardant foam injection: After the injection head 12 is adjusted to the designated injection position, the main body 2 of the flame-retardant foam injection machine begins to work. The main body 2 of the flame-retardant foam injection machine injects foam into the installation pipe 4 through a first connecting pipe 61 fixedly connected to its output end, and a second connecting pipe 62 fixedly connected to one end of the first connecting pipe 61 and rotatably connected to the installation pipe 4. The installation pipe 4 then supplies material to the injection head 12 through a third connecting pipe 63 fixedly connected to it, and a hose 64 fixedly connected to one end of the third connecting pipe 63 and fixedly connected to the injection head 12. At this time, the injection head 12 begins to spray flame-retardant foam to inject flame-retardant foam into the gaps in the sealed structure.

[0048] Through the synergistic effect of the above components, the injection head 12 can adapt to any injection position, realize the automated injection of flame-retardant foam into the sealing structure of the goaf, greatly improve the injection efficiency, and enhance the injection effect, thus achieving effective flame retardancy and sealing.

[0049] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An adaptive flame-retardant foam injection device for goaf areas, characterized in that, The system includes an installation box (1), on which a flame-retardant foam injection machine body (2) is installed. An installation plate (3) is slidably connected to the top of the installation box (1). A first moving mechanism connected to the installation box (1) is provided on one side of the installation plate (3). The first moving mechanism is used to drive the installation plate (3) to move. An installation tube (4) is rotatably connected to the installation plate (3). A first transmission mechanism connected to the installation plate (3) is connected to the outer surface of the installation tube (4). The first transmission mechanism is used to drive the installation tube (4) to rotate. One end of the mounting tube (4) is fixedly connected to a transmission frame (5), and a transmission block (6) is slidably connected inside the transmission frame (5). A second moving mechanism is provided on the transmission block (6), which is used to drive the transmission block (6) to move. A transmission plate (7) is fixedly connected to one side of the transmission block (6), and a first telescopic drive member (8) is fixedly connected to the transmission plate (7). An installation frame (9) is fixedly connected to the output end of the first telescopic drive member (8). An installation shaft (10) is rotatably connected inside the installation frame (9). A second transmission mechanism connected to the installation frame (9) is connected to the outer surface of the installation shaft (10). The second transmission mechanism is used to drive the installation shaft (10) to rotate. An installation block (11) is fixedly connected to the outer surface of the installation shaft (10). An injection head (12) is fixedly connected to the installation block (11). The outer surface of the injection head (12) is connected to the flame-retardant foam injection machine body (2) through a connecting mechanism. An industrial vision camera (13) is fixedly connected to one side of the mounting frame (9). A controller (14) is provided on the mounting box (1). The controller (14) is electrically connected to the industrial vision camera (13). The controller (14) is electrically connected to the first transmission mechanism, the second transmission mechanism, the first moving mechanism, the second moving mechanism and the first telescopic drive component (8).

2. The adaptive flame-retardant foam injection device for goaf areas according to claim 1, characterized in that, The first moving mechanism includes a guide post (21) that is slidably connected to the mounting plate (3), and a second telescopic drive member (22) that is fixedly connected to the mounting plate (3) is fixedly connected to the top of the mounting box (1).

3. The adaptive flame-retardant foam injection device for goaf areas according to claim 1, characterized in that, The first transmission mechanism includes a first rotation drive (31) fixedly connected to the mounting plate (3), the output end of the first rotation drive (31) is fixedly connected to a drive shaft (32), the outer surface of the drive shaft (32) is fixedly sleeved with a first gear (33), and the outer surface of the first gear (33) is meshed with a second gear (34) fixedly sleeved with the mounting tube (4).

4. The adaptive flame-retardant foam injection device for goaf areas according to claim 1, characterized in that, The second moving mechanism includes a second rotating drive member (41) fixedly connected to the transmission frame (5). The output end of the second rotating drive member (41) is fixedly connected to a threaded rod (42) rotatably connected to the transmission frame (5). The outer surface of the threaded rod (42) is threadedly engaged with the transmission block (6). A guide rod fixedly connected to the transmission frame (5) is slidably connected to the transmission block (6).

5. The adaptive flame-retardant foam injection device for goaf areas according to claim 1, characterized in that, The second transmission mechanism includes a third telescopic drive member (51) fixedly connected to the mounting frame (9). The output end of the third telescopic drive member (51) is fixedly connected to a transmission rack (52) slidably connected to the mounting frame (9). One side of the transmission rack (52) is meshed with a transmission gear (53) fixedly sleeved to the mounting shaft (10).

6. The adaptive flame-retardant foam injection device for goaf areas according to claim 1, characterized in that, The connecting mechanism includes a first connecting pipe (61) fixedly connected to the output end of the flame-retardant foam injection machine body (2), a second connecting pipe (62) fixedly connected to the first connecting pipe (61) and rotatably connected to the installation pipe (4), a third connecting pipe (63) fixedly connected to the installation pipe (4), and a hose (64) fixedly connected to the injection head (12) at one end of the third connecting pipe (63).

7. The adaptive flame-retardant foam injection device for goaf areas according to claim 1, characterized in that, The bottom of the mounting box (1) is fixedly connected with multiple casters.

8. The adaptive flame-retardant foam injection device for goaf areas according to claim 1, characterized in that, The installation box (1) is provided with a storage cavity, in which spare parts and tools for maintenance and repair are placed, and the storage cavity is provided with an openable and closable sealed door.

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