Coal face liquid spraying fire preventing and extinguishing device
By using a linkage and adjustment mechanism, the height of the nozzles can be adjusted and reciprocated, which solves the problem of low fire extinguishing efficiency when the nozzle position is fixed, increases the liquid coverage area, and enhances the fire extinguishing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2026-03-31
AI Technical Summary
The fixed nozzle positions in existing fire prevention and extinguishing devices result in a fixed liquid spray range, leaving some areas uncovered and affecting fire extinguishing efficiency.
Employing a linkage and adjustment mechanism, the liquid is guided to the spray plate through the guide branch pipe and then sprayed out through the nozzle. The liquid thrust drives the spray plate and guide branch pipe to rotate, and the adjustment mechanism allows the nozzle height to be adjusted appropriately, achieving the reciprocating motion of the nozzle and covering a wider range.
This effectively avoids the problem of liquid not being able to cover certain areas, and greatly improves fire extinguishing efficiency.
Smart Images
Figure CN224064400U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of fire prevention and extinguishing devices, and particularly relates to a liquid spraying fire prevention and extinguishing device for coal mining faces. Background Technology
[0002] A coal mine is a rationally excavated space created by humans when mining coal-rich geological strata. It typically includes roadways, shafts, and mining faces. Coal is the most important solid fuel and a type of combustible organic rock. Spontaneous combustion of coal seriously affects the safe operation of mines. As the mining depth increases, the presence of high ground pressure and high ground temperature increases the risk of spontaneous combustion of coal seams. Therefore, liquid fire suppression systems are generally used at coal mining faces to assist in fire prevention and extinguishing to ensure safety during the mining process.
[0003] Although there are various types of fire prevention and extinguishing devices available today, some problems still exist. For example, most current fire prevention and extinguishing devices place the nozzles at the top of the mine. When a fire occurs, liquid is sprayed from the nozzles at the top to extinguish the fire. While this method can prevent and extinguish fires, the fixed position of the nozzles means that the area covered by the liquid is also fixed, resulting in some areas not being covered and thus low extinguishing efficiency. Utility Model Content
[0004] This utility model provides a liquid spraying fire prevention and extinguishing device for coal mining faces, which aims to solve the problem that the fixed position of the nozzles results in some areas not being covered by liquid, thus affecting the fire extinguishing efficiency.
[0005] This utility model is implemented as follows: a coal mining face spray fire prevention and extinguishing device, comprising: a fixed plate, a support base, a guide branch pipe, a spray disc, a nozzle, a linkage mechanism, and an adjustment mechanism;
[0006] The fixing plate is fixed to the top of the coal mining face. The support base is set on the side wall of the fixing plate, and two are symmetrically arranged at the top and bottom. The guide branch pipe is rotatably connected between two adjacent support bases and is rotatably connected to the support base. The spray plate is coaxially fixed to the bottom of the guide branch pipe. The nozzle is fixed on the side wall of the spray plate and a cavity is set inside the spray plate. The guide branch pipe and the nozzle are both connected to the cavity of the spray plate.
[0007] The linkage mechanism includes a guide rod, a support plate, an adjusting rod, a limiting plate, and a retaining ring. The guide rod is fixed between two upper and lower support seats. The support plate is slidably connected to the guide rod. One end of the adjusting rod is fixed at the center of the support plate. The limiting plate is coaxially fixed to the guide branch pipe. The retaining ring is fixed to the other end of the adjusting rod and is rotatably engaged with the limiting plate.
[0008] The adjustment mechanism is mounted on the fixed plate.
[0009] Preferably, the adjusting mechanism includes an adjusting cylinder, a sliding groove, and a driven plate. The adjusting cylinder is rotatably connected between two adjacent upper and lower support seats, and a through hole is provided through the axis of the adjusting cylinder. The guide branch pipe is slidably connected in the through hole of the adjusting cylinder. The sliding groove is provided on the outer wall of the adjusting cylinder. The driven plate is rotatably connected to the support plate, and the driven plate is slidably engaged in the sliding groove.
[0010] Preferably, the groove is composed of two sets of spiral grooves, and the two sets of spiral grooves are arranged in opposite directions.
[0011] Preferably, the adjustment mechanism further includes a limiting plate, which is fixed on the outer wall of the guide branch pipe and has a groove on the inner wall of the through hole of the adjustment cylinder, and the limiting plate is slidably engaged in the groove.
[0012] Preferably, a plurality of nozzles are equidistantly arranged along the side wall of the spray disc, and all of the nozzles are inclined.
[0013] Preferably, the top end of the flow guide branch pipe is provided with a connecting pipe, which is rotatably connected to the flow guide branch pipe through a sealed bearing, and the outer wall of the connecting pipe is provided with threads.
[0014] Preferably, two guide rods are symmetrically arranged, and through holes are provided at both ends of the support plate. The guide rods are connected to the through holes, and ball bearings are embedded in the inner wall of the through holes, with the ball bearings abutting against the guide rods.
[0015] Compared with the prior art, the embodiments of this application have the following main advantages:
[0016] In this solution, a linkage mechanism and an adjustment mechanism are set up. The liquid inside the external pipeline is guided to the spray plate through the diversion branch pipe and then sprayed out through the nozzle. During the liquid spraying process, the liquid generates thrust, which drives the spray plate and the diversion branch pipe to rotate as a whole. The limiting plate in the adjustment mechanism drives the adjustment cylinder to rotate synchronously. At the same time as the adjustment cylinder rotates, the driven plate slides in the slide groove and drives the support plate to slide back and forth on the guide rod. In turn, the adjustment rod drives the diversion branch pipe to slide in the support seat and the adjustment cylinder. Thus, the height of the nozzle can be appropriately adjusted and reciprocated during the liquid spraying process. This effectively avoids the problem of liquid not covering some areas and greatly improves the fire extinguishing efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall external structure of this utility model;
[0018] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the fixing plate and part of the connection structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the flow guide branch pipe connection structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the support plate connection structure of this utility model;
[0022] In the diagram: 1. Fixed plate; 2. Support base; 3. Flow guide branch pipe; 4. Spray disc; 5. Nozzle; 6. Linkage mechanism; 61. Guide rod; 62. Support plate; 63. Adjusting rod; 64. Limiting plate; 65. Snap ring; 7. Adjusting mechanism; 71. Adjusting cylinder; 72. Slide groove; 73. Driven plate; 74. Limiting plate; 8. Connecting pipe. Detailed Implementation
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0025] This utility model embodiment provides a liquid spraying fire prevention and extinguishing device for coal mining faces, such as... Figure 1-5 As shown, it includes: a fixed plate 1, a support base 2, a guide branch pipe 3, a spray disc 4, a nozzle 5, a linkage mechanism 6, and an adjustment mechanism 7;
[0026] The fixed plate 1 is fixed to the top of the coal mining face. The support base 2 is set on the side wall of the fixed plate 1, and two are symmetrically arranged above and below. The guide branch pipe 3 is rotatably connected between two adjacent support bases 2 and is rotatably connected to the support base 2. The spray plate 4 is coaxially fixed to the bottom of the guide branch pipe 3. The nozzle 5 is fixed on the side wall of the spray plate 4 and a cavity is set inside the spray plate 4. The guide branch pipe 3 and the nozzle 5 are both connected to the cavity of the spray plate 4.
[0027] The linkage mechanism 6 includes a guide rod 61, a support plate 62, an adjusting rod 63, a limiting plate 64, and a retaining ring 65. The guide rod 61 is fixed between the upper and lower support seats 2. The support plate 62 is slidably connected to the guide rod 61. One end of the adjusting rod 63 is fixed at the center of the support plate 62. The limiting plate 64 is coaxially fixed to the guide branch pipe 3. The retaining ring 65 is fixed to the other end of the adjusting rod 63 and is rotatably engaged with the limiting plate 64.
[0028] The adjustment mechanism 7 is mounted on the fixed plate 1. The adjustment mechanism 7 includes an adjustment cylinder 71, a slide groove 72, and a driven plate 73. The adjustment cylinder 71 is rotatably connected between two adjacent upper and lower support seats 2, and a through hole is provided through the axis of the adjustment cylinder 71. The guide branch pipe 3 is slidably connected in the through hole of the adjustment cylinder 71. The slide groove 72 is mounted on the outer wall of the adjustment cylinder 71. The driven plate 73 is rotatably connected to the support plate 62, and the driven plate 73 is slidably engaged in the slide groove 72. The slide groove 72 is composed of two sets of spiral grooves, and the two sets of spiral grooves are arranged in opposite directions.
[0029] The regulating mechanism 7 also includes a limiting plate 74, which is fixed on the outer wall of the guide branch pipe 3 and has a slot on the inner wall of the through hole of the regulating cylinder 71. The limiting plate 74 is slidably engaged in the slot.
[0030] It should be noted that most existing fire prevention and extinguishing devices install nozzles at the top of the mine. When a fire occurs, liquid is sprayed from these top-mounted nozzles to extinguish it. While this method can prevent and extinguish fires, the fixed nozzle positions result in a fixed spray area, leaving some areas uncovered and leading to low extinguishing efficiency. To address this issue, this solution incorporates a linkage mechanism 6 and an adjustment mechanism 7. Liquid from the external pipeline is guided to the spray plate 4 via a guide branch pipe 3 and then sprayed out through the nozzles 5. During the liquid spraying process… The liquid generates thrust, which in turn drives the spray disc 4 and the guide branch pipe 3 to rotate as a whole. The limiting plate 74 in the adjusting mechanism 7 drives the adjusting cylinder 71 to rotate synchronously. While the adjusting cylinder 71 rotates, the driven plate 73 slides in the slide groove 72 and drives the support plate 62 to slide back and forth on the guide rod 61. The adjusting rod 63 then drives the guide branch pipe 3 to slide in the support seat 2 and the adjusting cylinder 71. As a result, the height of the nozzle 5 can be appropriately adjusted and it can move back and forth during the liquid spraying process. This effectively avoids the problem of liquid not being able to cover some areas and greatly improves the fire extinguishing efficiency.
[0031] Specifically, in this embodiment, the solution mainly includes a fixed plate 1, a support base 2, a guide branch pipe 3, a spray disc 4, a nozzle 5, a linkage mechanism 6, an adjustment mechanism 7, and a connecting pipe 8. In use, the entire device is first fixed to an appropriate position on the top of the coal mining face by the fixed plate 1, and the connecting pipe 8 is connected to the external guide hose. When spraying liquid for fire extinguishing, the nozzle 5 generates thrust to push the spray disc 4 and the guide branch pipe 3 to rotate as a whole, and simultaneously drives the adjustment cylinder 71 to rotate through the limiting plate 74. At the same time as the adjustment cylinder 71 rotates, the driven plate 73 slides in the slide groove 72, and drives the support plate 62 to slide back and forth on the guide rod 61. Then, through the adjustment rod 63, the guide branch pipe 3 is simultaneously driven to slide in the support base 2 and the adjustment cylinder 71, so that the height of the nozzle 5 can be adjusted up and down.
[0032] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, several nozzles 5 are equidistantly arranged along the side wall of the spray disk 4, and all nozzles 5 are inclined.
[0033] In this embodiment, the nozzle 5 is tilted so that the thrust generated by the nozzle 5 when spraying liquid can drive the spray disk 4 to rotate.
[0034] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the top end of the flow guide branch pipe 3 is provided with a connecting pipe 8, which is rotatably connected to the flow guide branch pipe 3 through a sealed bearing, and the outer wall of the connecting pipe 8 is provided with threads.
[0035] In this embodiment, the connecting pipe 8 enables the flow branch pipe 3 to be quickly assembled and connected with the external flow hose.
[0036] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, two guide rods 61 are symmetrically arranged, and through holes are provided at both ends of the support plate 62. The guide rods 61 are connected to the through holes, and ball bearings are embedded in the inner wall of the through holes, with the ball bearings abutting against the guide rods 61.
[0037] In this embodiment, the frictional resistance between the guide rod 61 and the support plate 62 is reduced by the rolling of the ball, thereby enabling the support plate 62 to slide quickly on the guide rod 61.
[0038] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.
[0039] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.
[0040] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A coal face liquid injection fire prevention and extinguishing device, characterized in that, The utility model relates to a coal face water spraying device, including: Fixed plate (1), support seat (2), flow guide branch pipe (3), injection disc (4), spray head (5), linkage mechanism (6) and adjusting mechanism (7); The fixed plate (1) is fixed on the top of the coal face, the support seat (2) is arranged on the side wall of fixed plate (1), and two are symmetrically arranged, the flow guide branch pipe (3) is rotatably connected between the adjacent two support seats (2) and rotatably connected with the support seat (2), the injection disc (4) is coaxially fixed at the bottom of flow guide branch pipe (3), the spray head (5) is fixed on the side wall of injection disc (4), and a cavity is arranged in the injection disc (4), the flow guide branch pipe (3) and the spray head (5) are all through with the cavity of injection disc (4); The linkage mechanism (6) includes guide rod (61), supporting plate (62), adjusting rod (63), limiting disc (64) and snap ring (65), the guide rod (61) is fixed between the upper and lower two support seats (2), the supporting plate (62) is slidably connected on the guide rod (61), one end of the adjusting rod (63) is fixed at the center of the supporting plate (62), the limiting disc (64) is coaxially fixed on the flow guide branch pipe (3), the snap ring (65) is fixed on the other end of the adjusting rod (63) and rotatably connected on the limiting disc (64), The adjusting mechanism (7) is arranged on the fixed plate (1).
2. The coal face liquid injection fire preventing and extinguishing device according to claim 1, characterized in that, The adjusting mechanism (7) includes adjusting cylinder (71), sliding slot (72) and driven plate (73), the adjusting cylinder (71) is rotatably connected between the adjacent two support seats (2) on the upper and lower, and a through hole is provided at the axis of the adjusting cylinder (71), the flow guide branch pipe (3) is slidably connected in the through hole of the adjusting cylinder (71), the sliding slot (72) is arranged on the outer wall of the adjusting cylinder (71), the driven plate (73) is rotatably connected on the supporting plate (62), and the driven plate (73) is slidably connected in the sliding slot (72).
3. The coal face liquid injection fire preventing and extinguishing device according to claim 2, characterized in that, The sliding slot (72) is composed of two groups of spiral-shaped structure notches, and the two groups of spiral notches are oppositely arranged.
4. The coal face liquid injection fire preventing and extinguishing device according to claim 2, characterized in that, The adjusting mechanism (7) further includes a limiting plate (74), the limiting plate (74) is fixed on the outer wall of the flow guide branch pipe (3), and a notch is provided on the inner wall of the through hole of the adjusting cylinder (71), the limiting plate (74) is slidably connected in the notch.
5. The coal face liquid-spraying fire-preventing and extinguishing device according to claim 1, characterized in that, The spray head (5) is equidistantly provided with a plurality of spray heads along the side wall of the injection disc (4), and the plurality of spray heads (5) are all inclined.
6. The coal face liquid-spraying fire-preventing and extinguishing device according to claim 1, characterized in that, The top end of the flow guide branch pipe (3) is provided with a butt joint pipe (8), the butt joint pipe (8) is rotatably connected with the flow guide branch pipe (3) through a sealing bearing, and a screw thread is arranged on the outer wall of the butt joint pipe (8).
7. The coal face liquid-spraying fire-preventing and extinguishing device according to claim 1, characterized in that, The guide rod (61) is symmetrically provided with two, and a through hole is provided at both ends of the supporting plate (62), the guide rod (61) is connected in the through hole, and the inner wall of the through hole is embedded with a ball, and the ball is in contact with the guide rod (61).