Flame-proof mining safety explosion-proof feed switch structure

Abstract

The utility model provides an explosion-proof mining safety explosion-proof feed switch structure, comprising a switch cabinet with a junction box on the top, an explosion-proof cover, fastening assemblies and a flexible sealing member, the explosion-proof cover is detachably installed on the top of the junction box through the plurality of fastening assemblies to block or open a top opening of the junction box, and the flexible sealing member is detachably installed on the top of the junction box. The flexible sealing element is arranged between the junction box and the explosion-proof cover so as to seal a mounting gap between the junction box and the explosion-proof cover; wherein any one fastening assembly is provided with at least one group of mounting ends, the plurality of mounting ends in the same group are distributed on the two sides, deviating from each other, of the junction box and the explosion-proof cover, and the mounting ends are movably arranged and abut against the top of the explosion-proof cover or the junction box; the mounting ends located on different sides are relatively close to each other so as to press and clamp the explosion-proof cover on the top of the junction box, the fastening assembly comprises an elastic piece, and the two ends of the elastic piece abut against the two sides, close to each other, of the top of the junction box and the explosion-proof cover respectively. By adopting the scheme, the convenience and the stability of dismounting the explosion-proof cover can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof feed switches, and particularly to the structure of an explosion-proof type mine safety explosion-proof feed switch. Background Art

[0002] The structure of an explosion-proof type mine safety explosion-proof feed switch is a mine switch. This series of products is mainly applicable to coal mines with explosive gases and coal dust underground. Using single-chip microcomputer technology, it has functions of Chinese-characterized real-time current and voltage, fault query, and fault memory. The structure includes a housing, a box body, a vacuum circuit breaker, a protector, a power transformer, a resistor-capacitor absorber, a dashboard, and a power transformer, etc. It is mainly used as the main switch or branch switch of the power supply system, or as a feed switch for an explosion-proof type mobile substation in mines;

[0003] In the prior art, the explosion-proof cover of the structure of an explosion-proof type mine safety explosion-proof feed switch is often directly connected to the top of the junction box by bolts, and the disassembly and repair of the explosion-proof cover are not convenient enough. For example, when the bolts are rusted, the disassembly is rather cumbersome, affecting the stability during disassembly and inspection. Summary of the Utility Model

[0004] The utility model provides a structure of an explosion-proof type mine safety explosion-proof feed switch to improve the convenience and stability of disassembling the explosion-proof cover.

[0005] To solve the above problems, the utility model provides a structure of an explosion-proof type mine safety explosion-proof feed switch, which includes a switch cabinet with a junction box at the top, an explosion-proof cover, a fastening assembly, and a flexible seal. The explosion-proof cover is detachably installed on the top of the junction box through a plurality of fastening assemblies to block or open the top opening of the junction box. The flexible seal is arranged between the junction box and the explosion-proof cover to seal the installation gap between the junction box and the explosion-proof cover. Among them, any one of the fastening assemblies has at least one set of installation ends. A plurality of installation ends in the same set are distributed on the opposite sides of the junction box and the explosion-proof cover. The installation ends are movably arranged and detachably abut against the top of the explosion-proof cover or the junction box. The installation ends on different sides are relatively close to clamp the explosion-proof cover on the top of the junction box. The fastening assembly includes an elastic member, and both ends of the elastic member respectively abut against the top of the junction box and the two sides of the explosion-proof cover that are close to each other.

[0006] Furthermore, the outer periphery of the top of the junction box has an annular assembly protrusion. A plurality of fastening assemblies are equidistantly arranged along the extension direction of the annular assembly protrusion. The fastening assembly includes a locking screw and a locking nut. The locking screw passes through the annular assembly protrusion and the explosion-proof cover. The elastic member is sleeved on the outer periphery of the locking screw. Locking nuts are threadedly connected to both ends of the locking screw protruding from the annular assembly protrusion and the explosion-proof cover. One side of the locking nut abutting against the annular assembly protrusion or the explosion-proof cover forms an installation end.

[0007] Further, the fastening assembly further includes a gasket, and there is a gasket between any mounting end and the top of the explosion-proof cover or junction box that is detachably abutted thereto.

[0008] Further, the flexible seal has a connection hole, and the elastic member is inserted through the connection hole.

[0009] Further, the flexible seal includes a main gasket and a secondary gasket that are glued to each other, and both the main gasket and the secondary gasket are annular structures that avoid the opening at the top of the junction box.

[0010] Further, the structure of the flameproof mine safety explosion-proof power feed switch further includes a contact seat, a circuit breaker, and a driving assembly. The circuit breaker and the contact seat are both arranged in the switch cabinet. The input end of the circuit breaker has a wiring port. The driving assembly is arranged in the switch cabinet and is drivingly connected to the circuit breaker to drive the circuit breaker to move in the switch cabinet and make the output end of the circuit breaker detachably connected to the contact seat.

[0011] Further, the structure of the flameproof mine safety explosion-proof power feed switch further includes a temperature sensor and a controller. The temperature sensor is arranged at the wiring port, and the controller is electrically connected to both the temperature sensor and the driving assembly.

[0012] Further, the structure of the flameproof mine safety explosion-proof power feed switch further includes an adjusting seat and a connecting sliding seat. The adjusting seat is arranged at the bottom of the switch cabinet and has a connecting slide rail. The bottom of the connecting sliding seat is provided with a connecting sliding sleeve corresponding to the connecting slide rail. The connecting sliding sleeve is slidably arranged on the adjusting seat along the extending direction of the connecting slide rail. The circuit breaker is arranged on the connecting sliding seat, and the driving assembly is arranged on the adjusting seat and is drivingly connected to the connecting sliding seat.

[0013] Further, the driving assembly includes a servo motor, a threaded adjusting rod, and a threaded adjusting sleeve. The servo motor is arranged on the adjusting seat. The output shaft of the servo motor is parallel to the extending direction of the connecting slide rail. The threaded adjusting rod is installed on the output shaft of the servo motor. The bottom of the connecting sliding seat is provided with a threaded connecting sleeve that is threadedly connected to the threaded adjusting rod. The threaded connecting sleeve is in non-rotating fit with the bottom of the adjusting seat.

[0014] Further, the switch cabinet has a cabinet door that can be opened and closed rotatably through a rotating shaft. The structure of the flameproof mine safety explosion-proof power feed switch further includes a controller that is fixedly arranged on the cabinet door. An inspection window is arranged on the side wall of the switch cabinet.

[0015] Applying the technical solution of the present utility model, a structure of an explosion-proof mine safety explosion-proof power feed switch is provided, which includes a switch cabinet with a junction box at the top, an explosion-proof cover, a fastening assembly, and a flexible seal. The explosion-proof cover is detachably installed on the top of the junction box through a plurality of fastening assemblies to block or open the top opening of the junction box. The flexible seal is arranged between the junction box and the explosion-proof cover to seal the installation gap between the junction box and the explosion-proof cover. Among them, any one of the fastening assemblies has at least one set of installation ends. A plurality of installation ends in the same set are distributed on two opposite sides of the junction box and the explosion-proof cover. The installation ends are movably arranged and are detachably abutted against the top of the explosion-proof cover or the junction box. The installation ends located on different sides are relatively close to clamp the explosion-proof cover on the top of the junction box. The fastening assembly includes an elastic member, and two ends of the elastic member are respectively abutted against two sides of the top of the junction box and the explosion-proof cover that are close to each other.

[0016] Adopting this solution, the installation ends of any one of the fastening assemblies distributed on two opposite sides of the explosion-proof cover and the junction box are close to each other and are respectively pressed and abutted against the explosion-proof cover and the junction box to achieve a detachably clamped installation of the explosion-proof cover and the top of the junction box. The installation ends of the same fastening assembly distributed on any one side of the explosion-proof cover and the junction box that are opposite to each other can move away from the installation ends on the other side, so as to facilitate the disassembly of the fastening assembly. Compared with the prior art in which the fastening assembly only has installation ends on one of the two opposite sides of the explosion-proof cover and the junction box, if there is a problem with this installation end and it cannot be disassembled or assembled, it will also cause difficulties or even impossibility in disassembling the explosion-proof cover. This solution can disassemble the fastening assembly from any one of the two opposite sides of the explosion-proof cover and the junction box to realize the disassembly of the explosion-proof cover, avoiding the above-mentioned difficulties or impossibility in disassembly, and improving the convenience and stability of overhauling the explosion-proof cover at the junction box. On the other hand, when the explosion-proof cover and the junction box are connected together through a plurality of fastening assemblies, the elastic member is compressed. By setting the elastic member, it can play an auxiliary role in jacking up when the explosion-proof cover is removed, which is better than the traditional method such as fixing with a single bolt, and further improves the convenience of disassembling the explosion-proof cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 shows a schematic structural diagram of the explosion-proof mine safety explosion-proof power feed switch structure provided by the present utility model;

[0019] Figure 2 shows Figure 1 an exploded view of the flexible seal and the elastic member in

[0020] Figure 3shows Figure 1 schematic diagram of the internal structure;

[0021] Figure 4 shows Figure 1 assembly schematic diagram of the drive assembly, contact seat and circuit breaker in

[0022] Figure 5 shows Figure 1 schematic diagram of the structure of the fastening assembly in

[0023] 1. Switchgear cabinet; 2. Cabinet door; 3. Junction box; 4. Explosion-proof cover; 5. Main gasket; 6. Rotating shaft; 7. Inspection window; 8. Push switch; 9. Controller; 10. Control button; 11. Locking screw; 12. Auxiliary gasket; 13. Connecting hole; 14. Elastic member; 15. Connecting through hole; 16. Adjusting seat; 17. Circuit breaker; 18. Contact seat; 19. Wiring port; 20. Temperature sensor; 21. Connecting sliding seat; 22. Servo motor; 23. Thread adjusting rod; 24. Thread adjusting sleeve; 25. Locking nut; 26. Gasket. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1 to 5 shown, an embodiment of the present invention provides an explosion-proof mine safety explosion-proof power feed switch structure, including a switchgear cabinet 1 with a junction box 3 at the top, an explosion-proof cover 4, a fastening assembly and a flexible seal. The explosion-proof cover 4 is detachably installed on the top of the junction box 3 through a plurality of fastening assemblies to block or open the top opening of the junction box 3. The flexible seal is arranged between the junction box 3 and the explosion-proof cover 4 to seal the installation gap between the junction box 3 and the explosion-proof cover 4. Among them, any one of the fastening assemblies has at least one set of installation ends. A plurality of installation ends in the same set are distributed on two opposite sides of the junction box 3 and the explosion-proof cover 4. The installation ends are movably arranged and detachably abutted against the top of the explosion-proof cover 4 or the junction box 3. The installation ends on different sides are relatively close to clamp the explosion-proof cover 4 on the top of the junction box 3. The fastening assembly includes an elastic member 14, and both ends of the elastic member 14 are abutted against the top of the junction box 3 and two relatively close sides of the explosion-proof cover 4 respectively.

[0026] In this embodiment, any fastening component is distributed on the mounting ends on the opposite sides of the explosion-proof cover 4 and the junction box 3, and the mounting ends approach each other and are respectively pressed against and abutted against the explosion-proof cover 4 and the junction box 3, so as to realize the separable clamping installation of the tops of the explosion-proof cover 4 and the junction box 3. The mounting end of the same fastening component on any one side of the explosion-proof cover 4 and the junction box 3 where they are opposite to each other can move away from the mounting end on the other side, so as to facilitate the disassembly of the fastening component. Compared with the prior art where the fastening component only has a mounting end on one of the opposite sides of the explosion-proof cover 4 and the junction box 3, if there is a problem with this mounting end and it cannot be disassembled or assembled, it will also cause difficulties or even impossibility in disassembling the explosion-proof cover 4. In this solution, the fastening component can be disassembled from any one side of the explosion-proof cover 4 and the junction box 3 where they are opposite to each other, thereby realizing the disassembly of the explosion-proof cover 4, avoiding the above-mentioned difficulties or impossibility in disassembly, and improving the convenience and stability of overhauling the explosion-proof cover 4 at the junction box 3. On the other hand, when the explosion-proof cover 4 and the junction box 3 are connected together by a plurality of fastening components, the elastic member 14 is compressed. By providing the elastic member 14, it can play an auxiliary role in jacking up when the explosion-proof cover 4 is removed, which is better than the traditional method such as fixing with a single bolt, and further improves the convenience of disassembling the explosion-proof cover 4. Preferably, the elastic member 14 is a spring.

[0027] As Figure 1 and Figure 5 shown, the outer periphery of the top of the junction box 3 has an annular assembly protrusion, and a plurality of fastening components are equidistantly arranged along the extending direction of the annular assembly protrusion. The fastening component includes a locking screw 11 and a locking nut 25. The locking screw 11 passes through the annular assembly protrusion and the explosion-proof cover 4. The elastic member 14 is sleeved on the outer periphery of the locking screw 11. Locking nuts 25 are threadedly connected to both ends of the locking screw 11 protruding from the annular assembly protrusion and the explosion-proof cover 4. One side of the locking nut 25 abutting against the annular assembly protrusion or the explosion-proof cover 4 forms a mounting end.

[0028] In this embodiment, the shape of the annular assembly protrusion on the top of the junction box 3 is adapted to the outer peripheral shape of the junction box 3, and the shape of the explosion-proof cover 4 is adapted to the outer peripheral shape of the junction box 3. When installing the explosion-proof cover 4, first pass the locking screw 11 through the annular assembly protrusion and the explosion-proof cover 4, and the locking screw 11 protrudes from the annular assembly protrusion and the explosion-proof cover 4. The two ends of the two sides away from each other are respectively sleeved with a locking screw sleeve 25, and the two locking screw sleeves 25 are tightened at the same time to press the explosion-proof cover 4 on the annular assembly protrusion. In this way, when it is necessary to disassemble the explosion-proof cover 4, the corresponding locking screw 11 can be disassembled by disassembling the locking screw sleeve 25 on any side. Compared with the prior art that directly connects the annular assembly protrusion and the explosion-proof cover 4 with bolts, if the bolts are rusted, it will be difficult to disassemble. This embodiment can effectively prevent the problem of rusting on a single side causing difficulty in disassembly during disassembly, thereby improving the convenience of repairing the explosion-proof cover at the junction box. On the other hand, the elastic member 14 is sleeved on the outer circumference of the locking screw 11 , which facilitates the position-limiting installation of the elastic member 14 .

[0029] like Figure 5 As shown, the fastening assembly further includes a gasket 26, and a gasket 26 is provided between any one of the mounting ends and the top of the explosion-proof cover 4 or the junction box 3 which is detachably abutted therewith.

[0030] In this arrangement, the gasket 26 can be used to buffer the tightening and abutting of the locking nut sleeve 25, thereby preventing the locking nut sleeve 25 from directly abutting against the annular assembly protrusion or the explosion-proof cover 4 after being tightened, which would cause the locking nut sleeve 25, the annular assembly protrusion, and the explosion-proof cover 4 to be easily damaged.

[0031] like Figure 2 As shown, the flexible seal has a connection hole 13, and the elastic member 14 is inserted into the connection hole 13. This arrangement is conducive to further realizing the limited installation of the elastic member 14 through the connection hole 13. The flexible seal includes a main seal pad 5 and a secondary seal pad 12 that are glued to each other.

[0032] In this embodiment, a plurality of connection holes 13 are provided on the auxiliary sealing gasket 12 and the main sealing gasket 5 at positions corresponding to the locking screw 11. An elastic member 14 is sleeved on the outside of the locking screw 11 and both pass through the connection holes 13 to achieve limited installation of the fastening assembly, the flexible seal, the explosion-proof cover 4 and the annular assembly protrusion.

[0033] Specifically, both the main sealing pad 5 and the auxiliary sealing pad 12 are annular structures that avoid the top opening of the junction box 3 , and the surrounding area in the middle forms a connecting through hole 15 corresponding to the top opening of the junction box 3 .

[0034] like Figure 3 and Figure 4As shown in the figure, in order to solve the problems in the prior art that the structure of the explosion-proof mine safety explosion-proof power feed switch cannot automatically push or disconnect the circuit breaker, is not conducive to power-off maintenance of the circuit breaker 17, and does not meet the underground explosion-proof requirements, the structure of the explosion-proof mine safety explosion-proof power feed switch further includes a contact seat 18, a circuit breaker 17 and a driving component. The circuit breaker 17 and the contact seat 18 are both arranged in the switch cabinet 1. The input end of the circuit breaker 17 has a wiring port 19. The driving component is arranged in the switch cabinet 1 and is drivingly connected to the circuit breaker 17 to drive the circuit breaker 17 to move in the switch cabinet 1 and make the output end of the circuit breaker 17 detachably connected to the contact seat 18.

[0035] With such a setting, it is convenient for the operator to quickly disconnect the connection between the circuit breaker 17 and the contact seat 18, avoid the situation that the inside of the explosion-proof mine safety explosion-proof power feed switch structure is still charged after power-off, and improve the convenience, safety, stability and reliability of the explosion-proof mine safety explosion-proof power feed switch structure during use. It should be noted that the contact seat 18 and the circuit breaker 17 are fixedly connected by plugging, that is, the contact seat 18 is provided with a metal slot on the surface corresponding to the circuit breaker 17, and a metal plug board is installed on the circuit breaker 17. The conductive plug board is adapted to the conductive slot. When the contact seat 18 contacts the circuit breaker 17, the metal plug board is inserted into the metal slot to realize the contact connection between the two.

[0036] Furthermore, the structure of the explosion-proof mine safety explosion-proof power feed switch further includes a temperature sensor 20 and a controller 9. The temperature sensor 20 is arranged at the wiring port 19, and the controller 9 is electrically connected to the temperature sensor 20 and the driving component.

[0037] In this embodiment, the temperature sensor 20 is installed at the wiring port 19 of the circuit breaker 17. The temperature of the wiring port 19 is monitored through the temperature sensor 20, so that the controller 9 can control the driving component to move the circuit breaker 17 and automatically disconnect the connection between the circuit breaker 17 and the contact seat 18 when the temperature is too high, improving the convenience, safety, stability and reliability of the explosion-proof mine safety explosion-proof power feed switch structure during use.

[0038] As Figure 4 shown, the structure of the explosion-proof mine safety explosion-proof power feed switch further includes an adjusting seat 16 and a connecting sliding seat 21. The adjusting seat 16 is arranged at the bottom of the switch cabinet 1 and has a connecting slide rail. The bottom of the connecting sliding seat 21 is provided with a connecting sliding sleeve corresponding to the connecting slide rail. The connecting sliding sleeve is slidably arranged on the adjusting seat 16 along the extending direction of the connecting slide rail. The circuit breaker 17 is arranged on the connecting sliding seat 21, and the driving component is arranged on the adjusting seat 16 and is drivingly connected to the connecting sliding seat 21.

[0039] With such a setting, it is convenient for the setting and sliding drive of the circuit breaker 17, and at the same time is beneficial to ensuring the reliability and stability of the drive and sliding.

[0040] Specifically, the driving component includes a servo motor 22, a threaded adjusting rod 23, and a threaded adjusting sleeve 24. The servo motor 22 is arranged on the adjusting seat 16, and the output shaft of the servo motor 22 is parallel to the extending direction of the connecting slide rail. The threaded adjusting rod 23 is installed on the output shaft of the servo motor 22. A threaded connecting sleeve that is threadedly connected to the threaded adjusting rod 23 is arranged at the bottom of the connecting slide seat 21, and the threaded connecting sleeve is in non-rotating fit with the bottom of the adjusting seat 16. With such a setting, it is convenient to drive the circuit breaker 17 reliably and stably.

[0041] In this embodiment, when the temperature sensor 20 detects that the temperature at the wiring port 19 is too high, it transmits a signal to the controller 9. After the signal is converted by the controller 9, the servo motor 22 at the adjusting seat 16 is driven to drive the threaded adjusting rod 23 to rotate. Cooperating with the threaded adjusting sleeve 24, the connecting slide seat 21 is driven to slide above the adjusting seat 16, so that the connection between the circuit breaker 17 and the contact seat 18 can be quickly disconnected.

[0042] As Figure 1 and Figure 3 shown, the switch cabinet 1 has a cabinet door 2. The cabinet door 2 is rotatably opened and closed through a rotating shaft 6. The structure of the explosion-proof mine safety explosion-proof power feed switch further includes a controller 9. The controller 9 is fixedly arranged on the cabinet door 2, and an inspection window 7 is arranged on the side wall of the switch cabinet 1.

[0043] With such a setting, it is convenient for the installation and operation of the controller 9. At the same time, through the inspection window 7, it is beneficial to inspect the disconnection or advancement of the circuit breaker 17.

[0044] Preferably, a control button 10 is installed on the outer wall of the cabinet door 2 corresponding to the position of the controller 9, and a push switch 8 is installed on the outer wall of the cabinet door 2 near the control button 10. By electrically connecting the push switch 8 to the servo motor 22, it is possible to automatically disconnect or advance the circuit breaker 17 after the door is closed.

[0045] In summary, the present utility model provides a structure of an explosion-proof mine safety explosion-proof power feed switch. When it is necessary to disassemble the explosion-proof cover 4, the locking sleeve 25 on either side can be disassembled to achieve the disassembly of the corresponding locking screw 11. Compared with the prior art where bolts are directly used to connect the annular assembly protrusion and the explosion-proof cover 4, if the bolts rust, it will be difficult to disassemble. In this embodiment, during disassembly, the problem of difficult disassembly caused by rust on a single side can be effectively prevented, improving the convenience of disassembling the explosion-proof cover at the maintenance junction box. On the other hand, by setting the elastic member 14, it can play an auxiliary role in jacking up the explosion-proof cover 4 during removal, which is better than the traditional method such as fixing with a single bolt, further improving the convenience of disassembling the explosion-proof cover 4. Further, during use, the temperature sensor 20 can be used to detect the temperature at the wiring port 19. When the temperature is too high, the signal is transmitted to the controller 9. After the signal is converted by the controller 9, the servo motor 22 at the adjustment seat 16 is driven to drive the threaded adjustment rod 23 to rotate, and the threaded adjustment sleeve 24 is cooperated to drive the connecting sliding seat 21 to slide above the adjustment seat 16, so as to quickly disconnect the connection between the circuit breaker 17 and the contact seat 18.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters indicate like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0048] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0049] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0050] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0051] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flameproof mining safety explosion-proof feeder switch structure, characterized in that: The invention comprises a switch cabinet (1) having a junction box (3) on the top, an explosion-proof cover (4), a fastening assembly and a flexible sealing member, wherein the explosion-proof cover (4) is detachably mounted on the top of the junction box (3) through a plurality of the fastening assemblies to block or open the top opening of the junction box (3), and the flexible sealing member is arranged between the junction box (3) and the explosion-proof cover (4) to seal the installation gap between the junction box (3) and the explosion-proof cover (4); Wherein, any one of the fastening components has at least one group of mounting ends, and a plurality of the mounting ends of the same group are distributed on two sides of the junction box (3) and the explosion-proof cover (4) that are away from each other, and the mounting ends are movably arranged and detachably abut against the top of the explosion-proof cover (4) or the junction box (3); the mounting ends located on different sides are relatively close to each other so as to clamp the explosion-proof cover (4) on the top of the junction box (3), and the fastening component includes an elastic member (14), and two ends of the elastic member (14) are respectively abutted against the top of the junction box (3) and the two sides of the explosion-proof cover (4) that are close to each other.

2. The flameproof mining safety explosion-proof feeder switch structure according to claim 1 is characterized in that: The top periphery of the junction box (3) is provided with an annular assembly protrusion, and a plurality of the fastening components are equidistantly arranged along the extension direction of the annular assembly protrusion. The fastening components include a locking screw (11) and a locking nut sleeve (25). The locking screw (11) passes through the annular assembly protrusion and the explosion-proof cover (4). The elastic member (14) is sleeved on the periphery of the locking screw (11). Both ends of the locking screw (11) protruding from the annular assembly protrusion and the explosion-proof cover (4) are threadedly connected with a locking nut sleeve (25). The side of the locking nut sleeve (25) abutting against the annular assembly protrusion or the explosion-proof cover (4) forms a mounting end.

3. The flameproof mining safety explosion-proof feeder switch structure according to claim 1 is characterized in that: The fastening assembly further comprises a gasket (26), wherein a gasket (26) is provided between any one of the mounting ends and the explosion-proof cover (4) or the top of the junction box (3) detachably abutting against the mounting end.

4. The flameproof mining safety explosion-proof feeder switch structure according to claim 1 is characterized in that: The flexible sealing member has a connecting hole (13), and the elastic member (14) is inserted into the connecting hole (13).

5. The flameproof mining safety explosion-proof feeder switch structure according to claim 1 is characterized in that: The flexible sealing member comprises a main sealing pad (5) and a secondary sealing pad (12) which are glued to each other, and both the main sealing pad (5) and the secondary sealing pad (12) are annular structures that avoid the top opening of the junction box (3).

6. The flameproof mining safety explosion-proof feeder switch structure according to claim 1 is characterized in that: The flameproof mining safety explosion-proof feeder switch structure further comprises a contact seat (18), a circuit breaker (17) and a drive assembly, wherein the circuit breaker (17) and the contact seat (18) are both arranged in the switch cabinet (1), the input end of the circuit breaker (17) has a wiring port (19), and the drive assembly is arranged in the switch cabinet (1) and is connected to the circuit breaker (17) to drive the circuit breaker (17) to move in the switch cabinet (1) and to detachably connect the output end of the circuit breaker (17) to the contact seat (18).

7. The flameproof mining safety and explosion-proof feeder switch structure according to claim 6 is characterized in that: The flameproof mining safety explosion-proof feeder switch structure further comprises a temperature sensor (20) and a controller (9); the temperature sensor (20) is arranged at the wiring port (19); and the controller (9) is electrically connected to the temperature sensor (20) and the drive assembly.

8. The flameproof mining safety and explosion-proof feeder switch structure according to claim 6 is characterized in that: The flameproof mining safety explosion-proof feeder switch structure further comprises an adjustment seat (16) and a connecting slide seat (21); the adjustment seat (16) is arranged at the bottom of the switch cabinet (1) and has a connecting slide rail; a connecting sleeve is arranged at the bottom of the connecting slide seat (21) corresponding to the connecting slide rail; the connecting sleeve is slidably arranged on the adjustment seat (16) along the extension direction of the connecting slide rail; the circuit breaker (17) is arranged on the connecting slide seat (21); and the driving assembly is arranged on the adjustment seat (16) and is drivingly connected to the connecting slide seat (21).

9. The flameproof mining safety explosion-proof feeder switch structure according to claim 8 is characterized in that: The driving assembly comprises a servo motor (22), a threaded adjustment rod (23) and a threaded adjustment sleeve (24); the servo motor (22) is arranged on the adjustment seat (16); the output shaft of the servo motor (22) is parallel to the extension direction of the connecting slide rail; the threaded adjustment rod (23) is mounted on the output shaft of the servo motor (22); a threaded connection sleeve threadedly connected to the threaded adjustment rod (23) is arranged at the bottom of the connecting slide seat (21); the threaded connection sleeve is engaged with the bottom of the adjustment seat (16) in a rotation-stopping manner.

10. The flameproof mining safety and explosion-proof feeder switch structure according to claim 1 is characterized in that: The switch cabinet (1) has a cabinet door (2), and the cabinet door (2) can be rotatably opened and closed via a rotating shaft (6). The flameproof mining safety explosion-proof feeder switch structure also includes a controller (9), and the controller (9) is fixedly arranged on the cabinet door (2). An inspection window (7) is arranged on the side wall of the switch cabinet (1).

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