Mining explosion-proof switch equipment

Abstract

A sealing mechanism comprises two connecting plates, a splicing pipe, a connecting pipe, a sealing ring, two bolts and two nuts, one of the two connecting plates is arranged on the outer wall of a wire inlet pipe, the other connecting plate is arranged on the outer wall of the connecting pipe, the splicing pipe is arranged at one end of the connecting plate, and the sealing ring is arranged at the other end of the connecting pipe. A connecting groove is formed in one end of the connecting pipe, the splicing pipe is connected with the connecting pipe through the connecting groove, one of the two sealing rings is arranged on the inner bottom wall of the connecting groove, the other sealing ring is arranged at the open end of the connecting groove, the two bolts sequentially penetrate through the two connecting plates respectively, and the two nuts are in threaded connection with the corresponding bolts respectively. According to the mining explosion-proof switchgear provided by the embodiment of the utility model, the wire inlet pipe and the connecting pipe are in embedded butt joint, so that the direct connection position of the wire inlet pipe and the connecting pipe is not exposed outside any more, and gas invasion paths are reduced structurally.

Description

Technical Field

[0001] This utility model relates to the technical field of mining, and in particular to an explosion-proof switchgear for mining. Background Technology

[0002] Mining refers to the business of extracting underground minerals. Mineral resources are products of the Earth's crust during its long-term formation, development, and evolution. They are formed by the accumulation of minerals in nature under certain geological conditions and through certain geological processes. In the process of mining mineral resources, explosion-proof switches are usually used to control the on / off state of circuits and to control the start and stop of equipment.

[0003] In the process of mining, there are clear requirements regarding the selection of installation location, fixing method, and cable introduction operation of explosion-proof switches. Any oversight during installation will compromise the explosion-proof performance of the switch, significantly increasing safety risks. The cable introduction process is particularly critical. If the cable introduction device is not properly sealed, explosive gases rich in flammable and explosive substances underground can easily enter the switch. The electrical sparks generated during switch operation could then come into contact with these gases, potentially causing an explosion. Currently, workers commonly use connecting discs and bolts to securely connect the cable conduit and the switch inlet pipe. While this method ensures a stable connection, it fails to guarantee a tight seal at the connection point, creating a potential safety hazard. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to provide a mine-use explosion-proof switchgear that employs an embedded connection method. The inlet pipe and connecting pipe are embedded and connected, eliminating the direct connection point and structurally reducing the path for gas intrusion. Simultaneously, a sealing ring is installed at the connection point between the inlet pipe and the connecting pipe, utilizing the elastic deformation of the sealing ring to achieve a tight fit and provide a comprehensive seal. This dual-protection design effectively prevents flammable and explosive gases from entering the cabinet through the connection point, eliminating the safety hazard of explosions caused by gas leaks and effectively ensuring the explosion-proof performance of the mine-use explosion-proof switchgear and the safety of mining operations.

[0006] To achieve the above objectives, the first aspect of this utility model proposes a mine explosion-proof switchgear, comprising: a cabinet, a cabinet door, two inlet pipes, and two sets of sealing mechanisms. The cabinet door is pivotally connected to the cabinet. The two inlet pipes are symmetrically arranged on the two side walls of the cabinet. The two sets of sealing mechanisms are respectively arranged at one end of the corresponding inlet pipe. Each sealing mechanism includes two connecting plates, a splicing pipe, a connecting pipe, sealing rings, two bolts, and two nuts. One of the two connecting plates is located on the outer wall of the inlet pipe, and the other connecting plate is located on the outer wall of the connecting pipe. The splicing pipe is located at one end of the connecting plate, and a connecting groove is formed at one end of the connecting pipe, through which the splicing pipe is connected to the connecting pipe. One of the two sealing rings is located on the inner bottom wall of the connecting groove, and the other sealing ring is located at the open end of the connecting groove. The two bolts pass through the two connecting plates sequentially, and the two nuts are threadedly connected to the corresponding bolts.

[0007] In addition, the explosion-proof switchgear for mining proposed in this utility model may also have the following additional technical features:

[0008] Specifically, the bottom wall of the cabinet is symmetrically equipped with support legs, and the support legs are provided with through holes at equal intervals.

[0009] Specifically, a heat dissipation assembly is installed on the side wall of the cabinet. The heat dissipation assembly includes two heat sinks, multiple heat conduction columns, and a cooling component. One of the two heat sinks is located on the inner wall of the cabinet, and the other heat sink is located on the outer wall of the cabinet. One end of each of the multiple heat conduction columns is connected to a heat sink, and the other end of the multiple heat conduction columns passes through the cabinet and is connected to another heat sink. The cooling component is located on the side wall of the cabinet.

[0010] Specifically, the cooling assembly includes a mounting frame, a support frame, and two cooling fans. The mounting frame is located on the side wall of the cabinet, the support frame is connected to the inner wall of the mounting frame, and the two cooling fans are respectively located inside the mounting frame.

[0011] Specifically, the side wall of the mounting frame is provided with a mounting bracket, and a protective net is installed on the inner wall of the mounting bracket.

[0012] Compared with existing technologies, this utility model has the following advantages: It can adopt an embedded connection method. The inlet pipe and the connecting pipe are embedded and connected, so that the direct connection point is no longer exposed, structurally reducing the gas intrusion path. Simultaneously, a sealing ring is installed at the connection point of the inlet pipe and the connecting pipe, utilizing the elastic deformation of the sealing ring to achieve a tight fit and provide a comprehensive seal at the connection point. This dual-protection design effectively prevents flammable and explosive gases from entering the cabinet through the connection point, eliminating the safety hazard of explosions caused by gas leaks, and effectively ensuring the explosion-proof performance of the mining explosion-proof switch and the safety of mining operations.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a mine explosion-proof switchgear according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the sealing mechanism of a mine explosion-proof switchgear according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a protective net and support frame for use in mining explosion-proof switchgear according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the heat dissipation assembly structure of a mine explosion-proof switchgear according to an embodiment of the present invention.

[0019] Reference numerals in the attached diagram: 1. Cabinet; 2. Cabinet door; 3. Cable inlet pipe; 4. Support frame; 41. Through hole; 5. Sealing mechanism; 51. Connecting plate; 52. Sealing ring; 53. Connecting pipe; 54. Connecting groove; 55. Sealing ring; 56. Bolt; 57. Nut; 6. Heat dissipation assembly; 61. Heat sink; 62. Heat conduction column; 63. Cooling assembly; 631. Mounting frame; 632. Support frame; 633. Cooling fan; 7. Mounting bracket; 8. Protective net. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] The following describes an embodiment of the explosion-proof switchgear for mining, with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, the mine explosion-proof switchgear of this utility model embodiment includes: cabinet 1, cabinet door 2, two inlet pipes 3 and two sets of sealing mechanisms 5.

[0023] The cabinet door 2 is pivotally connected to the cabinet 1. Two inlet pipes 3 are symmetrically arranged on the two side walls of the cabinet 1. Two sets of sealing mechanisms 5 are respectively arranged at one end of the corresponding inlet pipes 3. The sealing mechanism 5 includes two connecting plates 51, splicing pipe 52, connecting pipe 53, two sealing rings 55, two bolts 56 and two nuts 57.

[0024] One of the two connecting plates 51 is located on the outer wall of the inlet pipe 3, and the other connecting plate 51 is located on the outer wall of the connecting pipe 53. The splicing pipe 52 is located on one end of the connecting plate 51, and a connecting groove 54 is provided at one end of the connecting pipe 53. The splicing pipe 52 is connected to the connecting pipe 53 through the connecting groove 54. One of the two sealing rings 55 is located on the inner bottom wall of the connecting groove 54, and the other sealing ring 55 is located on the open end of the connecting groove 54. Two bolts 56 pass through the two connecting plates 51 in sequence, and two nuts 57 are threadedly connected to the corresponding bolts 56.

[0025] Specifically, when it is necessary to connect the connecting pipe 53 to the inlet pipe 3 to introduce the cable into the cabinet 1, the operator can insert the inlet pipe 3 into the connecting groove 54 at one end of the connecting pipe 53 through the splicing pipe 52. At this time, the sealing ring 55 inside the connecting groove 54 can seal the internal connection point between the splicing pipe 52 and the connecting pipe 53. Then, the sealing ring 55 set on the open end of the connecting groove 54 can seal the external connection point between the splicing pipe 52 and the connecting pipe 53. Next, the operator can insert two bolts 56 through the two connecting plates 51 in sequence, and then rotate two nuts 57 to connect with the corresponding bolts 56. When the nuts 57 are tightened to the corresponding bolts 56, the sealing ring 55 inside the connecting groove 54 will deform to a certain extent, thereby increasing its sealing effect and preventing flammable and explosive materials from entering the cabinet 1 through the connection point between the connecting pipe 53 and the inlet pipe 3.

[0026] In one embodiment of this application, such as Figure 1 and Figure 3 As shown, the bottom wall of the cabinet 1 is symmetrically provided with support legs 4, and through holes 41 are equidistantly opened on the support legs 4.

[0027] It is understandable that the support legs 4 are symmetrically arranged on the bottom wall of the cabinet 1, so that the support legs 4 can support the cabinet 1. And through the through holes 41, the support legs 4 can be fixed to the required installation position by bolts through the through holes 41.

[0028] In one embodiment of this application, such as Figure 1 , Figure 3 and Figure 4 As shown, a heat dissipation assembly 6 is provided on the side wall of the cabinet 1. The heat dissipation assembly 6 includes two heat sinks 61, multiple heat conduction columns 62, and a cooling component 63.

[0029] One of the two heat sinks 61 is located on the inner wall of the cabinet 1, and the other heat sink 61 is located on the outer wall of the cabinet 1. One end of each of the multiple heat conduction columns 62 is connected to the heat sink 61, and the other end of each heat conduction column 62 passes through the cabinet 1 and is connected to the other heat sink 61. The cooling component 63 is located on the side wall of the cabinet 1.

[0030] Specifically, when a temperature is generated inside the cabinet 1, the temperature inside the cabinet 1 will be transferred to the heat sink 61 inside the cabinet 1, and then the heat sink 61 will transfer the temperature to the heat sink 61 outside the cabinet 1 through the heat conduction column 62, thereby reducing the temperature inside the cabinet 1.

[0031] In one embodiment of this application, such as Figure 4 As shown, the cooling component 63 includes a mounting frame 631, a support frame 632, and two cooling fans 633.

[0032] The mounting frame 631 is set on the side wall of the cabinet 1, the support frame 632 is connected to the inner wall of the mounting frame 631, and the two cooling fans 633 are respectively set inside the mounting frame 631.

[0033] Specifically, when it is necessary to reduce the internal temperature of the cabinet 1 more quickly, the staff can use an external control device to turn on the two cooling fans 633 installed inside the support frame 632. At this time, the cooling fans 633 will cool the heat sink 61 on the outside of the cabinet 1.

[0034] In one embodiment of this application, such as Figures 3-4 As shown, a mounting frame 7 is provided on the side wall of the mounting frame 631, and a protective net 8 is installed on the inner wall of the mounting frame 7.

[0035] It is understandable that by installing the mounting bracket 7 and the protective net 8 on the inner wall of the mounting bracket 7, external factors can be prevented from damaging the cooling fan 633, or the cooling fan 633 can cause injury to the staff.

[0036] In summary, an embedded connection method can be adopted. The inlet pipe and the connecting pipe are embedded and connected, eliminating the direct connection point and structurally reducing the path for gas intrusion. Simultaneously, a sealing ring is installed at the connection point, utilizing its elastic deformation to achieve a tight seal and provide comprehensive protection. This dual-protection design effectively prevents flammable and explosive gases from entering the cabinet through the connection point, eliminating the safety hazard of explosions caused by gas leaks and ensuring the explosion-proof performance of the mining explosion-proof switch and the safety of mining operations.

[0037] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A mine explosion-proof switchgear, characterized in that, include: The cabinet consists of a cabinet door, two cable inlets, and two sets of sealing mechanisms. The cabinet door is pivotally connected to the cabinet; The two inlet pipes are symmetrically arranged on the two side walls of the cabinet; The two sets of sealing mechanisms are respectively installed at one end of the corresponding inlet pipe, wherein, The sealing mechanism includes two connecting plates, a splicing pipe, a connecting tube, two sealing rings, two bolts, and two nuts. One of the two connecting plates is disposed on the outer wall of the inlet pipe, and the other connecting plate is disposed on the outer wall of the connecting pipe; The splicing pipe is disposed on one end of the connecting plate; One end of the connecting pipe is provided with a connecting groove, and the splicing pipe is connected to the connecting pipe through the connecting groove; One of the two sealing rings is disposed on the inner bottom wall of the connecting groove, and the other sealing ring is disposed on the open end of the connecting groove; The two bolts pass through the two connecting plates in sequence. The two nuts are respectively connected to the corresponding bolt threads.

2. The explosion-proof switchgear for mining according to claim 1, characterized in that, The bottom wall of the cabinet is symmetrically provided with support legs, and the support legs are provided with through holes at equal intervals.

3. The explosion-proof switchgear for mining according to claim 1, characterized in that, The side wall of the cabinet is equipped with a heat dissipation component, wherein, The heat dissipation assembly includes two heat sinks, multiple heat-conducting pillars, and a cooling component, wherein, One of the two heat sinks is disposed on the inner wall of the cabinet, and the other heat sink is disposed on the outer wall of the cabinet; One end of each of the multiple heat-conducting pillars is connected to the heat sink, and the other end of the multiple heat-conducting pillars passes through the cabinet and is connected to another heat sink. The cooling components are mounted on the side wall of the cabinet.

4. The explosion-proof switchgear for mining according to claim 3, characterized in that, The cooling assembly includes a mounting frame, a support bracket, and two cooling fans, wherein... The mounting frame is located on the side wall of the cabinet; The support frame is connected to the inner wall of the mounting frame; The two cooling fans are respectively installed inside the mounting frame.

5. The explosion-proof switchgear for mining according to claim 4, characterized in that, The side wall of the mounting frame is provided with a mounting bracket; A protective net is installed on the inner wall of the mounting frame.

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