Coal mine underground communication equipment based on LoRa
By using dust covers and dust suppression components in underground coal mine communication equipment, the problem of dust covering the equipment surface was solved, achieving both cleaning and dust prevention effects and extending the equipment's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-13
AI Technical Summary
The microphones and other equipment in underground wireless communication boxes in coal mines are prone to being covered with a lot of dust, which affects their use.
A LoRa-based underground communication device for coal mines was designed, employing a dust cover and dust suppression components. The dust cover consists of a U-shaped frame structure composed of a top plate, a front side plate, and side side plates, with an open bottom, fitted onto the outside of the communication cabinet. The front side plate forms a sealed contact with the cabinet. The dust suppression components consist of vertically arranged dust suppression plates forming a labyrinthine sealed gap with the cabinet side plates. The ends of the dust suppression plates make elastic contact with the cabinet side plates. Combined with a dust-adhesive matrix structure and rubber sealing strips, multi-level dust protection is achieved.
It effectively prevents dust from entering the communication cabinet, avoids covering the equipment, ensures equipment cleanliness, and extends service life.
Smart Images
Figure CN223993675U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of coal mine automation technology, and more specifically, to a LoRa-based underground communication device for coal mines. Background Technology
[0002] The coal mine communication system is one of the six major systems in a coal mine and plays a crucial role in coal production. The coal mine communication system is a system that enables communication and contact by sending and receiving communication signals in various stages such as production, scheduling, management, and rescue. It includes wired communication systems and wireless communication systems.
[0003] In related technologies, coal mine communication systems typically include a wireless intercom box, a microphone, and a loudspeaker assembly. This wireless intercom box uses wireless communication and can achieve wireless communication within a range of 4-5 kilometers. It also supports multiple activation and reception methods to ensure real-time communication between the control room and the underground coal mine.
[0004] However, due to the dusty environment in coal mines, and the fact that the microphone, earpiece, and other components of the wireless communication box are usually placed outside the box, their surfaces are covered with dust, which greatly affects their subsequent use. Utility Model Content
[0005] In view of this, this application provides a LoRa-based underground communication device for coal mines to solve the technical problem in related technologies that the surfaces of microphones, earpieces, and other devices in underground wireless communication boxes in coal mines are covered with a lot of dust, which affects their actual use.
[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:
[0007] LoRa-based underground communication equipment for coal mines includes:
[0008] A communication cabinet, the interior of which is equipped with communication-related devices, and the main side plate of the communication cabinet has device loading and unloading holes along its thickness direction;
[0009] The support is fixedly installed on the outer surface of the main side plate of the communication cabinet and located directly below the device loading and unloading hole. Its top surface has a downwardly recessed support groove.
[0010] A dust cover, comprising a top plate, a front plate, and two side plates forming a U-shaped frame structure, wherein the bottom and rear of the dust cover are open structures; the dust cover is fitted onto the communication cabinet body through the open openings at the bottom and rear, and the outer surface of the front plate forms a sealed contact surface with the outer surface of the main side plate of the communication cabinet body; the bottom of the dust cover is embedded in the support groove to form a dust barrier;
[0011] The dust suppression component includes several vertically arranged dust suppression plates. The dust suppression plates are equidistantly distributed on the inner surface of the side plates along the width direction of the dust cover. The extending direction of the dust suppression plates is perpendicular to the airflow direction. Their ends form elastic contact with the main side plate of the communication cabinet. The dust suppression component and the side plate of the communication cabinet form a labyrinth-type sealing gap.
[0012] In some possible implementations, the top edge of the support groove is provided with an inwardly recessed chamfer that contacts the bottom edge of the dust cover.
[0013] Among the possible implementation methods is a dust matrix structure;
[0014] The dust-adhesive matrix structure includes several dust-adhesive plates arranged in parallel on the outer surface of the side panel of the communication cabinet. Each dust-adhesive plate extends in a vertical direction, and the surface of each dust-adhesive plate is coated with an adhesive layer.
[0015] In some possible implementations, each of the dust-suppressing panels is inserted into the gap between adjacent dust-adhesive panels to form a multi-level dustproof structure.
[0016] Among the possible implementation methods, rubber sealing strips are also included;
[0017] The rubber sealing strip is disposed on the bottom surface of the top plate of the dust cover and contacts the communication cabinet to form an elastic seal.
[0018] In some possible implementations, the device access hole is located at the center of the main side panel of the communication cabinet.
[0019] The LoRa-based underground communication equipment for coal mines provided in this application has at least the following beneficial effects:
[0020] In the LoRa-based underground communication equipment for coal mines provided in this application embodiment, the bottom and rear of the dust cover have open openings. The dust cover is fitted onto the communication cabinet body, and the front panel of the dust cover contacts the main side of the communication cabinet, forming a sealed contact surface. Furthermore, the dust cover also forms a labyrinthine sealed gap with the side panels of the communication cabinet through the dust suppression plates of the dust suppression assembly, with the ends of each dust suppression plate making elastic contact with the side panels of the communication cabinet. This ensures that dust entering the gap between the dust cover and the communication cabinet is blocked by multiple dust suppression plates, preventing dust from entering the communication cabinet through the equipment access holes, thereby effectively preventing the microphone and earpiece inside the communication cabinet from being covered by dust. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the structure of a LoRa-based underground communication device for coal mines provided in an embodiment of this application;
[0023] Figure 2 for Figure 1 Exploded view;
[0024] Figure 3 for Figure 1 Schematic diagram of the combined structure of the dust cover and dust suppression board;
[0025] Figure 4 for Figure 1 Top view of the communication cabinet structure;
[0026] Figure 5 for Figure 1 A schematic diagram of another embodiment of the communication cabinet.
[0027] In the picture:
[0028] 100. Communication cabinet; 110. Equipment loading / unloading hole; 120. Main side panel; 200. Support base; 210. Support groove; 300. Dust cover; 310. Top plate; 320. Front side panel; 330. Side panel; 340. Opening; 400. Dust suppression board; 500. Chamfered corner; 600. Dust-adhesive board; 700. Rubber sealing strip. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] like Figures 1-5 As shown in the illustration, the LoRa-based underground communication equipment for coal mines provided in this application includes a communication cabinet 100, a support base 200, a dust cover 300, and dust suppression components. The communication cabinet 100 is a cabinet for installing communication equipment, primarily used to store and protect such equipment as servers and switches. The communication cabinet 100 is typically made of metal, possessing high strength and corrosion resistance. Furthermore, its internal design incorporates a reasonable layout and ventilation system to ensure stable operation of the equipment while maintaining good heat dissipation.
[0031] The main side panel 120 of the communication cabinet 100 is stamped with a device retrieval hole 110, which extends along the thickness direction. Personnel can use this device retrieval hole 110 to place microphones, earpieces, and other devices associated with the communication equipment inside the communication cabinet 100.
[0032] Continue as Figures 1-3 As shown, the support 200 is fixedly mounted on the outer surface of the main side plate 120 of the communication cabinet 100, and the two can be fixedly connected by welding or bolts. The support 200 is also located directly below the device access hole 110 of the communication cabinet 100, and the top of the support 200 is recessed to form a support groove 210.
[0033] In this embodiment, the dust cover 300 is composed of a top plate 310, a front side plate 320, and two side plates 300. Figure 2 and Figure 3 As shown, the top plate 310, front side plate 320, and two side plates 300 are spliced together to form a U-shaped frame structure. The bottom and rear of the dust cover 300 are open structures, meaning that the bottom and rear of the dust cover 300 have openings 340. Specifically, the top plate 310, front side plate 320, and two side plates 300 of the dust cover 300 can be integrally formed or welded together to ensure the airtightness of the dust cover 300.
[0034] like Figures 1-3As shown, the dust cover 300 is fitted onto the outside of the communication cabinet 100 through openings 340 at the bottom and rear. The front panel 320 of the dust cover 300 contacts the main side panel 120 of the communication cabinet 100, forming a sealed contact surface. Simultaneously, the bottom of the dust cover 300 is embedded in the support groove 210 of the support base 200 to form a dust barrier. Preferably, the top outer edge of the support groove 210 of the support base 200 is recessed downwards to form a chamfer 500, which contacts the bottom edge of the dust cover 300.
[0035] Continue as Figure 3 As shown, the dust suppression assembly consists of several vertically arranged dust suppression plates 400, each equidistantly arranged on the inner surface of its side panel 330 along the width direction of the dust cover 300. The extension direction of each dust suppression plate 400 is perpendicular to the airflow direction through the dust cover 300 and the communication cabinet 100, thus achieving the function of dust suppression. Due to the varying degrees of elasticity in metal, the ends of each dust suppression plate 400 form elastic contact with the main side panel 120 of the communication cabinet 100. Furthermore, each dust suppression plate 400 and the side panel of the communication cabinet 100 together form a labyrinthine sealing gap, further enhancing the dust suppression effect of the dust cover 300.
[0036] In the LoRa-based underground communication equipment for coal mines provided in this application embodiment, a handset and microphone can be placed inside the main side panel of the communication cabinet 100 through the device access hole 110 to prevent the handset and microphone from being easily covered by dust due to long-term exposure in the coal mine. The bottom and rear side of the dust cover 300 have openings 340. The dust cover 300 is fitted over the communication cabinet 100, and the front side panel 320 of the dust cover 300 contacts the main side panel 120 of the communication cabinet 100, forming a sealed contact surface. Furthermore, the dust cover 300 also forms a labyrinthine sealed gap with the side panel of the communication cabinet 100 through the dust suppression plates 400 of the dust suppression assembly, and the ends of each dust suppression plate 400 form elastic contact with the side panel of the communication cabinet 100. Since the extension direction of each dust suppression plate 400 is perpendicular to the airflow direction, the dust that drifts into the gap between the dust cover 300 and the communication cabinet 100 will be blocked by multiple dust suppression plates 400, so as to prevent the dust from entering the communication cabinet 100 through the equipment pick-up and drop hole 110, thereby effectively preventing the microphone and earpiece inside the communication cabinet 100 from being covered by dust.
[0037] In some embodiments, such as Figure 5 As shown, the outer surface of the side panel of the communication cabinet 100 is provided with a dust-adhesive matrix structure, which consists of several dust-adhesive plates 600 arranged in parallel on the outer surface of the side panel of the communication cabinet 100. Each dust-adhesive plate 600 extends in a vertical direction, and the surface of each dust-adhesive plate 600 is coated with an adhesive layer.
[0038] Preferably, the gap between adjacent dust-suppressing plates 600 is greater than the thickness of each dust-suppressing plate 400. Specifically, the gap between the dust-suppressing plates 600 can be 1.2 to 1.5 times the thickness of the dust-suppressing plate 400. Each dust-suppressing plate 400 can be embedded into the gap between adjacent dust-suppressing plates 600 to form a multi-level dustproof structure. When dust passes through the gap between the dust cover 300 and the side panel of the communication cabinet 100 and enters the interior of the multi-level dustproof structure, some dust will be blocked by the dust-suppressing plates 400, while some dust will be adsorbed by the adhesive layer on the surface of the dust-suppressing plates 600, thereby achieving the dual functions of dust suppression and dust absorption.
[0039] In some embodiments, a rubber sealing strip 700 is provided on the bottom surface of the top plate 310 of the dust cover 300. The rubber sealing strip 700 can be attached to the top plate 310 of the dust cover 300 by adhesive bonding. The top plate 310 of the dust cover 300 contacts the communication cabinet 100 through the rubber sealing strip 700 and forms an elastic seal, thereby further improving the sealing performance of the dust cover 300.
[0040] Preferably, the device access hole 110 of the communication cabinet 100 is located at the center of the side panel of the dust cover 300. This ensures that the distance between the device access hole 110 and the connection point of each side panel is equal, thereby ensuring that the side panel of the communication cabinet 100 is subjected to uniform force to avoid stress concentration.
[0041] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
[0042] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0043] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.
[0044] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0045] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0046] As used herein, the term "substrate" refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned or may remain unpatterned. Furthermore, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafers).
[0047] The term "layer" as used herein can refer to a portion of material comprising a region of thickness. A layer may extend over the entire underlying or overlying structure, or may have a extent smaller than that of the underlying or overlying structure. Furthermore, a layer may be a region of a homogeneous or non-homogeneous continuous structure, with a thickness less than that of the continuous structure. For example, a layer may be located between the top and bottom surfaces of the continuous structure, or between any pairs of lateral planes at the top and bottom surfaces. A layer may extend laterally, vertically, and / or along a tapered surface. A substrate may be a layer, and may include one or more layers, and / or may have one or more layers located on, above, and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductor and contact layers (forming contacts, interconnects, and / or vias therein) and one or more dielectric layers.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A LoRa-based communication device for underground coal mines, characterized in that, The utility model relates to a communication cabinet, which comprises a communication cabinet (100) with communication-related equipment inside, a device taking and placing hole (110) provided on the main side plate (120) of the communication cabinet (100) in the thickness direction, a supporting seat (200) fixedly provided on the outer surface of the main side plate (120) of the communication cabinet (100) and located directly below the device taking and placing hole (110), a top surface of the supporting seat (200) being provided with a downwardly recessed supporting groove (210), a dust cover (300) comprising a top plate (310), a front side plate (320) and two side plates (330) and forming a U-shaped frame structure, the bottom and the rear side of the dust cover (300) being open, the dust cover (300) being sleeved on the communication cabinet (100) through the open bottom and rear side, the front side plate (320) of the dust cover (300) being in sealing contact with the outer surface of the main side plate (120) of the communication cabinet (100), the bottom of the dust cover (300) being embedded into the supporting groove (210) to form a dustproof barrier, a dust suppression assembly comprising a plurality of vertically arranged dust suppression plates (400), the dust suppression plates (400) being equidistantly distributed on the inner surfaces of the side plates (330) of the dust cover (300) along the width direction of the dust cover (300), the extension direction of the dust suppression plates (400) being perpendicular to the airflow direction, the ends of the dust suppression plates (400) being in elastic contact with the main side plate (120) of the communication cabinet (100), the dust suppression assembly and the side plate of the communication cabinet (100) forming a labyrinth sealing gap. The top edge of the supporting groove (210) is provided with an inwardly recessed chamfer (500) in contact with the bottom edge of the dust cover (300). The utility model further comprises a dust sticking matrix structure. The dust sticking matrix structure comprises a plurality of dust sticking plates (600) arranged in parallel on the outer surfaces of the side plates of the communication cabinet (100), each of the dust sticking plates (600) extending in the vertical direction, and the surfaces of each of the dust sticking plates (600) being coated with a glue layer. Each of the dust suppression plates (400) is inserted into the gap between adjacent dust sticking plates (600) to form a multi-stage dustproof structure.
2. The LoRa-based coal mine underground communication device according to claim 1, characterized in that: The utility model further comprises a rubber sealing strip (700).
3. The LoRa-based coal mine underground communication device according to claim 1, characterized in that: The rubber sealing strip (700) is arranged on the bottom surface of the top plate (310) of the dust cover (300) and is in contact with the communication cabinet (100) to form an elastic seal. The device taking and placing hole (110) is located at the central position of the main side plate (120) of the communication cabinet (100).
4. The LoRa-based coal mine underground communication device according to claim 3, characterized in that: 5. The LoRa-based coal mine underground communication device according to claim 1, characterized in that: 6. The LoRa-based coal mine underground communication device according to claim 1, characterized in that: