Mining explosion-proof switch electrical cabinet

Abstract

The utility model relates to the technical field of electrical cabinets, and especially relates to a mining explosion-proof switch electrical cabinet comprising a cabinet body which is independently and fixedly arranged, and one end of the cabinet body is provided with an assembling port; the cabinet door is rotationally mounted at the cabinet body assembling opening through a hinge; the two positioning pieces are respectively mounted on the cabinet door, and the positioning pieces are positioned on the connecting side of the cabinet door and the assembling opening; the two positioning pins are arranged in the inner holes of the positioning pieces in a sliding mode respectively, blocking pieces are arranged on the positioning pins, and the positioning pieces and the preformed holes in the cabinet body are installed in a matched mode; the two first springs are installed on the two blocking pieces correspondingly, the other ends of the first springs are connected with the positioning pieces in a matched mode, and the first springs are used for providing reset power after the positioning pins are separated from the reserved holes; the driving mechanism is installed on the cabinet door, the two positioning pins are connected with the cabinet door in a matched mode, and the driving mechanism is used for being matched with the preformed holes of the cabinet door in a disassembly and assembly mode; the operation is convenient, and the use safety is high.

Description

Technical Field

[0001] This utility model relates to the technical field of electrical cabinets, and in particular to a mine explosion-proof switch electrical cabinet. Background Technology

[0002] Explosion-proof switchgear cabinets for mining are key equipment in underground mine power systems, primarily used for controlling and distributing electrical energy to ensure the safe operation of underground electrical equipment. Due to the complex environment of mines, containing flammable and explosive substances such as methane and coal dust, the switchgear cabinets must possess excellent explosion-proof performance to prevent safety accidents caused by electrical sparks or internal explosions. Therefore, the design and manufacture of explosion-proof switchgear cabinets for mining must meet stringent explosion-proof standards and safety requirements.

[0003] The opening and closing of traditional explosion-proof switchgear cabinets for mining is cumbersome, especially the locking operation required during the closing process, which is prone to being overlooked and could lead to accidents. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a mine explosion-proof switch cabinet that is easy to operate and has high safety.

[0005] This utility model discloses a mine explosion-proof switchgear cabinet, comprising:

[0006] The cabinet is independently and fixedly installed, and an assembly port is provided at one end of the cabinet.

[0007] The cabinet door is installed at the cabinet assembly opening via hinges.

[0008] Two positioning components are installed on the cabinet door, and the positioning components are located on the side where the cabinet door connects to the assembly opening;

[0009] Two positioning pins are slidably set in the inner hole of the positioning component, and the positioning pins are equipped with a stopper. The positioning pins are installed in conjunction with the reserved holes on the cabinet.

[0010] Two first springs are respectively installed on two baffles, and the other end of the first spring is connected to the positioning component. The first spring is used to provide reset power after the positioning pin is disengaged from the reserved hole.

[0011] The drive mechanism is installed on the cabinet door, and two positioning pins are respectively connected to the drive mechanism. The drive mechanism is used to assemble and disassemble the positioning pins with the reserved holes of the cabinet door.

[0012] Furthermore, the drive mechanism includes:

[0013] The assembly is installed on the cabinet door, and each end of the assembly has a through hole that allows the positioning pin to pass through.

[0014] Two first straight racks are slidably installed inside the assembly, and the movement trajectory of the first straight racks is parallel to the movement trajectory of the locating pins. The two first straight racks are respectively connected to the two locating pins.

[0015] The drive shaft is rotatably mounted on the cabinet door, and a connecting gear is provided on the drive shaft. The connecting gear meshes with two first straight racks.

[0016] The power mechanism is installed on the cabinet door and is connected to the drive shaft. The power mechanism is used to provide rotational power to the drive shaft.

[0017] The locking mechanism, installed on the assembly, is used to limit the rotation of the connecting gear.

[0018] Preferably, the locking mechanism includes:

[0019] The connecting column is slidably installed in the inner hole of the assembly, and a limiting element is provided on the connecting column, and the limiting element is installed in conjunction with the teeth of the connecting gear.

[0020] A fastener is mounted on the connecting column, and a second spring is mounted on the fastener. The other end of the second spring is mounted on the assembly.

[0021] Furthermore, the connecting column is chamfered to facilitate the connection between the cabinet door and the cabinet body when the cabinet door rotates.

[0022] As a preferred embodiment, the power mechanism includes:

[0023] A flip handle is installed on the cabinet door, and a second straight toothed rack is slidably installed inside the flip handle;

[0024] The transmission gear is coaxially mounted on the transmission shaft, and the second spur rack meshes with the transmission gear.

[0025] The movable part is slidably installed inside the flip handle, and the second straight rack is installed on the movable part, and the movable part is located in the adjustment groove of the flip handle.

[0026] Furthermore, the moving part is provided with protrusions, and the protrusions pass through the adjustment groove of the flip handle for finger actuation.

[0027] Preferably, the flip handle is provided with an inner groove for hand gripping.

[0028] Furthermore, the connection end between the positioning pin and the cabinet body is rounded.

[0029] This design features a mine-use explosion-proof switchgear cabinet. The independently fixed cabinet body, constructed of robust metal, provides stable support for the entire cabinet and ensures reliable explosion-proof performance thanks to its superior properties, guaranteeing safe operation in hazardous environments. An assembly port at one end of the cabinet facilitates the installation and maintenance of internal electrical components. The hinged cabinet door completely seals the cabinet when closed, effectively preventing explosions or sparks from escaping, further enhancing explosion-proof safety. Two positioning components installed on the connection side between the cabinet door and the assembly port provide stable mounting positions for positioning pins, which slide within the designated area. The positioning pin has an inner hole that mates with a pre-drilled hole in the cabinet body to precisely fix the cabinet door position and prevent accidental opening. The stop on the positioning pin works with the first spring. When the positioning pin disengages from the pre-drilled hole, the first spring is compressed and stores energy, which then provides automatic reset power for the positioning pin, ensuring that the positioning pin quickly returns to its original position and facilitating the locking of the cabinet door to the cabinet body. The drive mechanism installed on the cabinet door works with the positioning pin to precisely control the disassembly and assembly of the positioning pin and the pre-drilled hole in the cabinet body, greatly facilitating the opening and closing of the cabinet door. This comprehensively improves the ease of use and safety of the electrical cabinet and meets the stringent requirements for electrical equipment in mining environments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a mine explosion-proof switchgear according to the present invention at the first angle;

[0031] Figure 2 This is a schematic diagram of the structure of a mine explosion-proof switchgear electrical cabinet under a second angle according to this utility model;

[0032] Figure 3 This is a schematic diagram of the drive mechanism structure of a mine explosion-proof switchgear electrical cabinet according to this utility model;

[0033] Figure 4 This is a schematic diagram of the drive mechanism structure of a mine explosion-proof switchgear electrical cabinet with assembly parts omitted;

[0034] Figure 5 This is a schematic diagram of the power mechanism and locking mechanism of a mine explosion-proof switchgear according to the present invention;

[0035] The following components are labeled in the attached diagram: 1. Cabinet body; 2. Cabinet door; 3. Hinge; 4. Positioning component; 5. Positioning pin; 6. Barrier component; 7. First spring; 8. Drive mechanism; 81. Assembly component; 82. First spur rack; 83. Drive shaft; 84. Connecting gear; 85. Power mechanism; 85a. Flip handle; 85b. Second spur rack; 85c. Drive gear; 85d. Moving component; 85e. Protrusion; 86. Locking mechanism; 86a. Connecting column; 86b. Limiting component; 86c. Fixing component; 86d. Second spring. Detailed Implementation

[0036] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0037] This utility model relates to a mine explosion-proof switchgear cabinet, such as... Figures 1 to 5 As shown, it includes:

[0038] Cabinet 1 is independently and fixedly installed. Cabinet 1 is made of sturdy metal material to ensure the stability and explosion-proof performance of the entire electrical cabinet. An assembly port is provided at one end of cabinet 1.

[0039] Cabinet door 2 is installed at the assembly opening of cabinet body 1 by hinge 3. The design of cabinet door 2 ensures that cabinet body 1 can be completely sealed when closed to prevent explosion or spark leakage.

[0040] Two positioning components 4 are respectively installed on the cabinet door 2, and the positioning components 4 are located on the side where the cabinet door 2 connects to the assembly port;

[0041] Two positioning pins 5 are slidably set in the inner hole of the positioning component 4, and the positioning pins 5 are provided with a stop 6. The positioning pins 5 are installed in conjunction with the reserved holes on the cabinet body 1 to fix the position of the cabinet door 2.

[0042] Two first springs 7 are respectively installed on two baffles 6, and the other end of the first spring 7 is connected to the positioning component 4. The first spring 7 is used to provide reset power after the positioning pin 5 is disengaged from the reserved hole, so as to ensure that the positioning pin 5 can automatically reset.

[0043] The drive mechanism 8 is installed on the cabinet door 2, and the two positioning pins 5 are respectively connected to the drive mechanism 8. The drive mechanism 8 is used to assemble and disassemble the positioning pins 5 with the reserved holes of the cabinet door 2, so as to facilitate the opening and closing of the cabinet door 2.

[0044] The working principle of this device is as follows:

[0045] First, the drive mechanism 8 controls the disassembly and assembly of the positioning pin 5 with the reserved hole on the cabinet 1. When the cabinet door 2 needs to be opened, the drive mechanism 8 drives the positioning pin 5 to slide inward, so that it disengages from the reserved hole on the cabinet 1. At this time, the first spring 7 is compressed and stores the reset power, and the cabinet door 2 can be rotated around the hinge 3 to open.

[0046] The independently fixed cabinet 1 is made of sturdy metal, providing stable support for the entire electrical cabinet and ensuring reliable explosion-proof performance thanks to its excellent characteristics, guaranteeing safe operation in hazardous environments. An assembly port at one end of the cabinet facilitates the installation and maintenance of internal electrical components. The cabinet door 2, installed via hinge 3, completely seals the cabinet 1 when closed, effectively preventing explosions or sparks from escaping, further enhancing explosion-proof safety. Two positioning elements 4, installed on the side connecting the cabinet door 2 and the assembly port, provide a stable installation position for the positioning pin 5. The positioning pin 5 slides within the inner hole of the positioning element and engages with the pre-drilled hole in the cabinet 1. The positioning pin 5 is precisely fixed in position to prevent accidental opening of the cabinet door 2. The stop 6 on the positioning pin 5 works with the first spring 7. When the positioning pin 5 is disengaged from the reserved hole, the first spring 7 is compressed and stores energy, which then provides automatic reset power for the positioning pin 5, ensuring that the positioning pin 5 quickly returns to its original position. This facilitates the locking of the cabinet door 2 and the cabinet body 1. The drive mechanism 8 installed on the cabinet door 2 works with the positioning pin 5 to precisely control the disassembly and assembly of the positioning pin 5 and the reserved hole of the cabinet body 1. This greatly facilitates the opening and closing of the cabinet door 2, comprehensively improves the ease of use and safety of the electrical cabinet, and meets the strict requirements for electrical equipment in mining environments.

[0047] As a preferred option, such as Figures 1 to 5 As shown, the drive mechanism 8 includes:

[0048] Assembly 81 is installed on cabinet door 2. Both ends of assembly 81 are provided with through holes that allow positioning pins 5 to pass through.

[0049] Two first straight racks 82 are slidably installed inside the assembly 81, and the movement trajectory of the first straight racks 82 is parallel to the movement trajectory of the positioning pins 5. The two first straight racks 82 are respectively connected to the two positioning pins 5.

[0050] The drive shaft 83 is rotatably mounted on the cabinet door 2, and a connecting gear 84 is provided on the drive shaft 83. The connecting gear 84 meshes with two first straight racks 82.

[0051] The power mechanism 85 is installed on the cabinet door 2 and is connected to the drive shaft 83. The power mechanism 85 is used to provide rotational power to the drive shaft 83.

[0052] Locking mechanism 86 is mounted on assembly 81 and is used to limit the rotation of gear 84.

[0053] The assembly 81 installed on the cabinet door 2 has through holes at both ends that allow the positioning pins 5 to pass through smoothly, providing a stable path for the installation and movement of the positioning pins 5. Two first straight racks 82 are slidably installed inside the assembly 81, and their movement trajectory is parallel to and connected with the positioning pins 5, ensuring that the positioning pins 5 can accurately respond to the movement of the first straight racks 82. When the power mechanism 85 provides rotational power to the drive shaft 83, the connecting gear 84 on the drive shaft 83 rotates, thereby driving the two first straight racks 82 that mesh with it to slide synchronously, realizing efficient and synchronous control of the two positioning pins 5, accurately completing the disassembly and assembly operations of the positioning pins 5 and the reserved holes of the cabinet body 1, greatly facilitating the opening and closing of the cabinet door 2. At the same time, the locking mechanism 86 installed on the assembly 81 can limit the rotation of the connecting gear 84, preventing the positioning pins 5 from being displaced due to accidental rotation of the connecting gear 84 in the non-operational state, ensuring that the positioning pins 5 will not collide with the cabinet body 1 and cause rotation obstruction during the closing process of the cabinet door 2.

[0054] As a preferred option, such as Figures 1 to 5 As shown, the locking mechanism 86 includes:

[0055] The connecting post 86a is slidably installed in the inner hole of the assembly 81, and the connecting post 86a is provided with a limiting member 86b, which is installed in conjunction with the teeth of the connecting gear 84.

[0056] The fastener 86c is mounted on the connecting post 86a, and a second spring 86d is mounted on the fastener 86c. The other end of the second spring 86d is mounted on the assembly 81.

[0057] The connecting column 86a is slidably installed in the inner hole of the assembly 81, providing a flexible and stable mounting carrier for the limiting component 86b. The limiting component 86b and the teeth of the connecting gear 84 are tightly engaged. In the non-operating state, it can effectively prevent the connecting gear 84 from rotating, preventing the positioning pin 5 from being displaced due to the accidental rotation of the connecting gear 84, and ensuring that the positioning pin 5 will not obstruct the cabinet door 2 during the closing process. The fixing component 86c is installed on the connecting column 86a and works with the second spring 86d on the connecting column 86a. When it is necessary to operate the cabinet door to open, the cabinet body 1 pushes the connecting column 86a to overcome the elastic force of the second spring 86d, causing the limiting component 86b to disengage from the teeth of the connecting gear 84, allowing the connecting gear 84 to rotate. This enables the positioning pin 5 to engage with the reserved hole of the cabinet body 1 under the action of the first spring 7, achieving locking. When the connecting column 86a is disengaged from the cabinet body 1, the second spring 86d quickly resets, driving the connecting column 86a and the limiting component 86b back to their original positions, locking the connecting gear 84 again.

[0058] As a preferred option, such as Figures 1 to 5 As shown, the connecting column 86a is chamfered to facilitate the connection between the cabinet door 2 and the cabinet body 1 when the cabinet door 2 rotates.

[0059] When the cabinet door 2 is rotated and closed, the chamfer can guide the connecting column 86a to smoothly contact the cabinet body 1, avoiding jamming caused by the end of the connecting column 86a directly colliding with the cabinet body 1. This significantly improves the convenience and efficiency of the connection between the cabinet door 2 and the cabinet body 1, and can also effectively reduce the damage to the cabinet body 1 and the connecting column 86a caused by poor connection, thus extending the service life of the equipment.

[0060] As a preferred option, such as Figures 1 to 5 As shown, the power mechanism 85 includes:

[0061] A flip handle 85a is installed on the cabinet door 2, and a second straight toothed rack 85b is slidably installed inside the flip handle 85a;

[0062] The transmission gear 85c is coaxially mounted on the transmission shaft 83, and the second spur rack 85b is meshed with the transmission gear 85c.

[0063] The movable part 85d is slidably installed inside the flip handle 85a, and the second straight rack 85b is installed on the movable part 85d, and the movable part 85d is located in the adjustment groove of the flip handle 85a.

[0064] The movable part 85d is provided with a protrusion 85e, and the protrusion 85e passes through the adjustment groove of the flip handle 85a for finger actuation.

[0065] The flip handle 85a, installed on the cabinet door 2, provides a convenient grip for the operator, facilitating force application. The second spur rack 85b, slidably mounted inside, meshes with the transmission gear 85c, coaxially mounted on the transmission shaft 83. When the operator drives the moving part 85d, the moving part 85d drives the second spur rack 85b to slide. Through gear and rack transmission, linear motion is converted into rotation of the transmission shaft 83, which in turn controls the connecting gear 84 to drive the first spur rack 82 and the positioning pin 5, precisely achieving the opening and closing of the cabinet door 2. The moving part 85d is located in the adjustment groove of the flip handle 85a and has a protrusion 85e passing through the adjustment groove. The operator can easily drive the protrusion 85e with their fingers, flexibly controlling the movement of the moving part 85d, precisely adjusting the power output, and achieving precise control of the position of the positioning pin 5. This design is not only simple and labor-saving to operate, but also ensures that in complex mining environments, the operator can quickly and accurately open or close the cabinet door 2, effectively improving the efficiency of the electrical cabinet while ensuring the safe operation of the equipment.

[0066] As a preferred option, such as Figure 1 As shown, the flip handle 85a is provided with an inner groove for hand gripping;

[0067] The inner groove on the flip handle 85a, designed for hand gripping, greatly enhances the convenience and comfort of operating the explosion-proof switchgear in mining. In the complex mining environment, operators' hands may be covered in oil, dust, or be under tension. The inner groove design provides a gripping area that better conforms to the contours of the hand, effectively increasing the friction between the hand and the flip handle 85a, preventing slippage during operation, and ensuring that the operator can apply force stably.

[0068] As a preferred option, such as Figures 3 to 4 As shown, the locating pin 5 has rounded corners at the connection end with the cabinet 1;

[0069] When the positioning pin 5 is inserted into the reserved hole of the cabinet 1, the rounded corner can play a good guiding role, avoid the positioning pin 5 from hitting the edge of the reserved hole hard, reduce the difficulty of insertion caused by alignment deviation, and enable the positioning pin 5 to connect with the cabinet 1 more smoothly and efficiently, which greatly improves the convenience of installing and locking the cabinet door 2.

[0070] The explosion-proof switchgear cabinet for mining of this utility model has common mechanical installation, connection and setting methods, and can be implemented as long as it can achieve its beneficial effect.

[0071] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A mine explosion-proof switchgear electrical cabinet, characterized in that, Include: Cabinet body (1), independent fixed setting, and one end of the cabinet body (1) is provided with an assembly port; Cabinet door (2), hinged (3) is rotatably installed on the cabinet body (1) assembly port; Two positioning members (4) are respectively installed on the cabinet door (2), and the positioning member (4) is located on the side of the cabinet door (2) connected with the assembly port; Two positioning pins (5) are respectively slidably arranged in the inner hole of the positioning member (4), and the positioning pin (5) is provided with a blocking member (6), and the positioning pin (5) is matched and installed with the reserved hole on the cabinet body (1); Two first springs (7) are respectively installed on two blocking members (6), and the other end of the first spring (7) is matched and connected with the positioning member (4), and the first spring (7) is used to provide reset power after the positioning pin (5) is separated from the reserved hole; The driving mechanism (8) is installed on the cabinet door (2), and the two positioning pins (5) are respectively matched and connected with the driving mechanism (8), and the driving mechanism (8) is used for dismounting and cooperating the positioning pin (5) with the reserved hole of the cabinet door (2).

2. The mine flameproof switchgear cubicle of claim 1, wherein, The driving mechanism (8) comprises: Assembly member (81) is installed on the cabinet door (2), and the assembly member (81) is provided with through holes allowing the positioning pin (5) to pass through at both ends; Two first straight racks (82) are respectively slidably installed in the interior of the assembly member (81), and the moving track of the first straight rack (82) is parallelly arranged with the moving track of the positioning pin (5), and the two first straight racks (82) are respectively matched and connected with the two positioning pins (5); The transmission shaft (83) is rotatably installed on the cabinet door (2), and the transmission shaft (83) is provided with a connecting gear (84), and the connecting gear (84) is meshed and installed with the two first straight racks (82); The power mechanism (85) is installed on the cabinet door (2), and the power mechanism (85) is matched and connected with the transmission shaft (83), and the power mechanism (85) is used to provide rotating force to the transmission shaft (83); The locking mechanism (86) is installed on the assembly member (81), and the locking mechanism (86) is used for limiting the rotation of the connecting gear (84).

3. The mine flameproof switchgear cubicle of claim 2, wherein, The locking mechanism (86) comprises: The connecting column (86a) is slidably installed in the inner hole of the assembly member (81), and the connecting column (86a) is provided with a limiting member (86b), and the limiting member (86b) is matched and installed with the teeth of the connecting gear (84); The fixing member (86c) is installed on the connecting column (86a), and the fixing member (86c) is provided with a second spring (86d), and the other end of the second spring (86d) is installed on the assembly member (81).

4. The mine flameproof switchgear cubicle of claim 3, wherein, The connecting column (86a) is provided with a chamfer, which is convenient for the cooperation of the cabinet door (2) and the cabinet body (1) during rotation.

5. The mine flameproof switchgear cubicle of claim 2 wherein, The power mechanism (85) comprises: The turnover handle (85a) is installed on the cabinet door (2), and the second straight rack (85b) is slidably installed in the interior of the turnover handle (85a); A transmission gear (85c) is coaxially installed on the transmission shaft (83), and the second straight rack (85b) is in meshing installation with the transmission gear (85c); A moving part (85d) is slidingly installed inside the turnover handle (85a), and the second straight rack (85b) is installed on the moving part (85d), and the moving part (85d) is located at the adjusting groove of the turnover handle (85a).

6. The mine flameproof switchgear cubicle of claim 5, wherein, The moving part (85d) is provided with a convex point (85e), and the convex point (85e) penetrates through the adjusting groove of the turnover handle (85a) for driving by fingers.

7. The mine flameproof switchgear cubicle of claim 5 wherein, An inner groove for hand gripping is arranged on the turnover handle (85a).

8. The mining flameproof switchgear cubicle of claim 1, wherein, The positioning pin (5) is provided with a round corner at the connecting end of the cabinet body (1).

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