A mine-used explosion-proof DC voltage stabilizing power supply device

Abstract

The utility model discloses a kind of mining explosion-proof direct-current voltage stabilizing power supply devices, it is related to mining power supply technical field, including bottom plate, the top middle fixed mounting of bottom plate has installation mechanism, the top of bottom plate is installed with power supply body by installation mechanism.The utility model adopts above-mentioned structure, the fixed plate and counterbore of its bottom plate design during the application of this device, it is convenient to be connected stably by bolt and mine structure, enhance the overall stability of device, in installation mechanism, mounting groove and mounting block cooperate and realize the preliminary positioning of power supply body, clamping assembly passes through limit spring, slider and bayonet lock structure, ensure that mounting plate is firmly connected and not easy to loosen;Adjusting structure of guide plate and slide plate, it is convenient to fine-tune position when installing, improve installation efficiency and accuracy, this design makes power supply body installation fast and convenient, can be reliably fixed in mine, guarantee subsequent stable operation.

Description

Technical Field

[0001] This utility model belongs to the field of mining power supply technology, and specifically relates to a mining explosion-proof DC regulated power supply device. Background Technology

[0002] In underground working environments such as coal mines, explosion-proof DC voltage regulators for mining serve as crucial basic equipment, undertaking the critical task of providing stable and reliable DC power to various electrical equipment such as underground monitoring, communication, lighting, and sensors. With its explosion-proof shell design and internal voltage regulation circuit, this device can withstand internal explosion pressure, prevent explosion propagation, and ensure underground operation safety. It can also maintain stable output voltage when the grid voltage fluctuates or the load changes, ensuring normal equipment operation. This is of great significance for realizing automated monitoring and control in mines and ensuring safe production.

[0003] Currently, mining DC regulated power supplies are generally installed by directly mounting the power supply body inside the power supply casing and placing it inside the mine. While this installation method can meet basic power supply needs, it has revealed significant defects in actual use. Due to the complex environment inside the mine, with a large amount of ore and debris, the DC regulated power supply is easily squeezed by external ore or debris during mining and transportation operations. Once squeezed, the power supply may burst, leading to power outages, equipment failures, and other problems. This seriously threatens the normal operation of underground electrical equipment and the safety of miners, greatly affecting the safety and reliability of the power supply. Therefore, it is urgent to improve and optimize the structural design or protection methods of mining DC regulated power supplies. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a mine explosion-proof DC regulated power supply device to solve the problems raised in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A mine explosion-proof DC regulated power supply device includes a base plate, an installation mechanism fixedly installed at the top center of the base plate, a power supply body installed on the top of the base plate through the installation mechanism, and a buffer protection mechanism fixedly installed on the top of the base plate, the buffer protection mechanism being disposed on the outside of the power supply body. The installation mechanism includes an installation plate, on both sides of the top of the installation plate, an installation slot is provided, an installation block is slidably connected inside the installation slot, the top of the installation block is fixedly connected to the bottom of the power supply body, a groove is provided on the rear side of the installation plate, a snap-fit ​​component is fixedly installed inside the groove, and the outer side of the snap-fit ​​component is snapped into the inner side of the installation plate.

[0006] As a preferred technical solution, the mounting assembly includes a rail frame, which is fixedly installed inside the groove. Limiting springs are fixedly connected to both ends of the rail frame. A slider is fixedly installed on the outer end of the limiting spring. The slider is slidably connected to the inside of the rail frame. A locking pin is fixedly installed on the outer side of the slider. A locking hole is opened on the inner side of the mounting plate, and the outer end of the locking pin is inserted into the locking hole.

[0007] As a preferred technical solution, an adjusting plate is fixedly connected to the outside of the slider, a sliding groove is opened at the bottom of the groove, a sliding plate is slidably connected inside the sliding groove, a guide plate is fixedly installed on the top of the sliding plate, the guide plate is V-shaped in plan view, and the front ends of the guide plate and the adjusting plate are connected by transmission.

[0008] As a preferred technical solution, the outer end of the guide plate is provided with a hinge groove, and a guide wheel is rotatably connected inside the hinge groove. The front end of the guide wheel is fitted and connected to the inside of the guide plate.

[0009] As a preferred technical solution, heat dissipation windows are provided on both sides of the front and back of the power supply body, and a dustproof mesh is fixedly connected inside the heat dissipation window.

[0010] As a preferred technical solution, a fixing plate is fixedly installed on the front, back and middle of both sides of the base plate, and the outer end of the fixing plate is provided with a mounting hole, which is a countersunk hole.

[0011] As a preferred technical solution, the buffer protection mechanism includes a support shaft, an annular frame fixedly installed on the top of the support shaft, a buffer spring fixedly installed inside the annular frame, a damper fixedly connected inside the annular frame on the inner side of the buffer spring, a connecting shaft fixedly connected to the top of the buffer spring, and a protective baffle fixedly installed on the top of the connecting shaft. The overall cross-sectional shape of the protective baffle is an isosceles triangle.

[0012] In summary, the present invention has the following main advantages: First, the design of the fixing plate and countersunk holes on the base plate of this device facilitates a secure connection with the mine structure via bolts, enhancing the overall stability of the device. In the installation mechanism, the mounting groove and mounting block cooperate to achieve the initial positioning of the power supply body. The clamping assembly, through the limit spring, slider, and locking pin structure, ensures that the mounting plate is firmly clamped and not easily loosened. The adjustment structure composed of the guide plate and sliding plate facilitates fine-tuning of the position during installation, improving installation efficiency and accuracy. This design makes the installation of the power supply body quick and convenient, and can be reliably fixed in the mine, ensuring subsequent stable operation. Secondly, during the application of this device, the buffer springs and dampers of its buffer protection mechanism form a double buffer system, which can effectively absorb and consume external impact forces, reduce the risk of the power supply device being squeezed and bursting, ensure the stability of underground power supply and personnel safety, optimize the impact force dispersion path of the device, and guide falling rocks and debris to avoid accumulation. The voltage stabilization circuit of the power supply body maintains a stable output voltage to meet the power needs of underground equipment. The heat dissipation window, together with the dustproof net, ensures heat dissipation while preventing dust from entering, avoiding circuit failure, extending the service life of the device, and providing reliable power support for safe production in the mine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the power supply body in a disassembled state according to this utility model; Figure 4 This is a schematic diagram of the buffer protection mechanism of this utility model; Figure 5 This is the utility model Figure 3 A magnified structural diagram at point A.

[0014] Reference numerals: 1. Base plate; 2. Mounting mechanism; 21. Mounting plate; 22. Mounting groove; 23. Mounting block; 24. Groove body; 25. Clamping assembly; 251. Rail frame; 252. Limiting spring; 253. Slider; 254. Locking pin; 255. Locking hole; 256. Adjusting plate; 257. Slide groove; 258. Slide plate; 259. Guide plate; 2510. Hinge groove; 2511. Guide wheel; 3. Power supply body; 4. Buffer protection mechanism; 41. Support shaft; 42. Ring frame; 43. Buffer spring; 44. Damper; 45. Coupling shaft; 46. Protective baffle; 5. Fixing plate; 6. Mounting hole; 7. Heat dissipation window; 8. Dustproof net. Detailed Implementation

[0015] Example refer to Figures 1 to 5 This embodiment of a mine explosion-proof DC regulated power supply device includes a base plate 1, an installation mechanism 2 fixedly installed in the middle of the top of the base plate 1, a power supply body 3 installed on the top of the base plate 1 through the installation mechanism 2, and a buffer protection mechanism 4 fixedly installed on the top of the base plate 1, the buffer protection mechanism 4 being disposed on the outside of the power supply body 3. The mounting mechanism 2 includes a mounting plate 21. Mounting grooves 22 are provided on both sides of the top of the mounting plate 21. Mounting blocks 23 are slidably connected inside the mounting grooves 22. The top of the mounting blocks 23 is fixedly connected to the bottom of the power supply body 3. A groove 24 is provided on the rear side of the mounting plate 21. A clamping assembly 25 is fixedly installed inside the groove 24. The outer side of the clamping assembly 25 is clamped to the inner side of the mounting plate 21. During use, when installing the mine explosion-proof DC regulated power supply device, the fixing plate 5 and countersunk holes on the top of the base plate 1 are used to securely install the base plate 1 in the designated position in the mine using bolts. When installing the power supply body 3, the mounting blocks 23 at the bottom of the power supply body 3 are aligned with the mounting grooves 22 on both sides of the top of the mounting plate 21 and slid into the grooves to complete the initial positioning. At this time, the clamping assembly 25 plays its role, and the rail frame 251 in the clamping assembly 25 is fixed... The sliding block 253 is connected to the limiting springs 252 at both ends of the rail frame 251 inside the groove 24 on the rear side of the mounting plate 21. The locking pin 254 is fixed on the outside of the sliding block 253. When the relevant parts of the mounting assembly 25 are pushed, the sliding block 253 slides in the rail frame 251 against the elastic force of the limiting spring 252. The locking pin 254 is pulled out from the locking hole 255 on the inside of the mounting plate 21, which can adjust the position of the mounting plate 21. After installation, the relevant parts are released, and the sliding block 253 is reset under the action of the limiting spring 252. The locking pin 254 is reinserted into the locking hole 255, realizing the locking of the mounting assembly 25 with the inside of the mounting plate 21, thereby firmly fixing the mounting plate 21 and the power supply body 3 to the base plate 1. The buffer protection mechanism 4 on the top of the base plate 1 surrounds the outside of the power supply body 3. When the device is subjected to external pressure, it can absorb and disperse the impact force and protect the power supply body 3.

[0016] refer to Figures 1-3 and Figure 5The mounting assembly 25 includes a rail frame 251, which is fixedly installed inside the groove 24. Limit springs 252 are fixedly connected to both ends of the rail frame 251. A slider 253 is fixedly installed on the outer end of each limit spring 252, and the slider 253 is slidably connected to the inside of the rail frame 251. A locking pin 254 is fixedly installed on the outer side of the slider 253. A locking hole 255 is provided on the inner side of the mounting plate 21, and the outer end of the locking pin 254 is inserted into the locking hole 255. An adjusting plate 256 is fixedly connected to the outer side of the slider 253. A sliding plate is provided at the bottom of the groove 24. The groove 257 has a sliding plate 258 slidably connected inside it. A guide plate 259 is fixedly installed on the top of the sliding plate 258. The guide plate 259 has a V-shaped top view. The guide plate 259 is connected to the front end of the adjusting plate 256. The outer end of the guide plate 259 has a hinge groove 2510. A guide wheel 2511 is rotatably connected inside the hinge groove 2510. The front end of the guide wheel 2511 is fitted and connected to the inside of the guide plate 259. When it is necessary to adjust the position of the mounting plate 21, the sliding plate 258 is pushed into the groove 25 at the bottom of the groove 24. 7. Sliding: The sliding plate 258 drives the top V-shaped guide plate 259 to move synchronously. The guide wheel 2511 in the hinge groove 2510 at the outer end of the guide plate 259 is in contact with the front end of the adjusting plate 256. When the guide plate 259 moves, the guide wheel 2511 rolls along the inner side of the adjusting plate 256 and applies a pushing force, forcing the adjusting plate 256 to drive the slider 253 to slide inward against the elastic force of the limit spring 252 in the rail frame 251. At this time, the locking pin 254 fixed on the outer side of the slider 253 is pulled out from the locking hole 255 on the inner side of the mounting plate 21, releasing the mounting plate 21 from the base plate 1. In the snap-fit ​​state, the position of the mounting plate 21 can be freely adjusted, facilitating the disassembly and assembly of the power supply body 3. After installation, by releasing the guide plate 259, the limit spring 252 returns to its original deformation, pushing the slider 253 to slide outward and reset. The locking pin 254 is then reinserted into the corresponding locking hole 255, achieving a secure snap-fit ​​between the mounting plate 21 and the base plate 1. Through this design, the snap-fit ​​assembly 25 utilizes the V-shaped structure of the guide plate 259 and the elastic force of the limit spring 252 to achieve a quick insertion and removal operation of the locking pin 254, effectively improving the installation efficiency and connection stability of the power supply device.

[0017] refer to Figures 1-3The power supply body 3 has heat dissipation windows 7 on both sides of the front and back. Dustproof nets 8 are fixedly connected inside the heat dissipation windows 7. Fixing plates 5 are fixedly installed on the front, back and middle of both sides of the base plate 1. The outer end of the fixing plate 5 has a mounting hole 6, which is a countersunk hole. During use, when the mine explosion-proof DC regulated power supply device is in operation, the voltage stabilizing circuit and other components inside the power supply body 3 will generate heat through continuous operation. At this time, the heat dissipation windows 7 on both sides of the front and back of the power supply body 3 will play a role. Air can exchange heat with the inside of the power supply body 3 through the heat dissipation windows 7, dissipating the heat and ensuring that the components inside the power supply body 3 operate stably at a suitable temperature. Meanwhile, the dustproof net 8 fixedly connected inside the heat dissipation window 7 can effectively intercept floating dust and debris in the mine, preventing them from entering the power supply body 3 and avoiding the impact of dust accumulation on heat dissipation or short circuits. The fixing plate 5 fixedly installed on the front, back and middle of both sides of the base plate 1 has countersunk holes at its outer ends for installing bolts and other connecting parts. By passing the bolts through the countersunk holes and fastening them to the installation foundation in the mine, the entire power supply device can be firmly fixed in the designated position. The countersunk hole design allows the bolt heads to sink into the fixing plate 5, avoiding the protruding parts from affecting the installation of the device or interfering with the surrounding environment, ensuring the stability and safety of the device after installation.

[0018] refer to Figures 1-4 The buffer protection mechanism 4 includes a support shaft 41, with an annular frame 42 fixedly mounted on the top of the support shaft 41. A buffer spring 43 is fixedly mounted inside the annular frame 42, and a damper 44 is fixedly connected inside the annular frame 42 to the inner side of the buffer spring 43. A connecting shaft 45 is fixedly connected to the top of the buffer spring 43, and a protective baffle 46 is fixedly mounted on the top of the connecting shaft 45. The protective baffle 46 has an overall cross-sectional shape of an isosceles triangle. During the application of this device, when the buffer protection mechanism 4 is working, the support shaft 41 is fixed to the top of the base plate 1, and the buffer spring 43 and the damper 44 are installed inside the annular frame 42 at its top. The damper 44 is located inside the buffer spring 43, and the tops of the two are connected by a connecting shaft. 45 is connected to the protective baffle 46 with an isosceles triangular cross section. When external ore or debris squeezes the protective baffle 46, the impact force is transmitted to the buffer spring 43 and the damper 44 through the coupling 45. The buffer spring 43 is compressed and deformed to absorb part of the energy and slow down the impact speed. The damping medium inside the damper 44 moves and consumes energy, converting kinetic energy into heat energy. At the same time, the isosceles triangular protective baffle 46 uses the inclined structure to disperse the impact force and guide the falling rocks and other debris to both sides to avoid accumulation at the top. The buffer spring 43 and the damper 44 work together to weaken the direct impact force on the power supply body 3. With the structural design of the protective baffle 46, effective protection of the power supply body 3 is achieved.

[0019] Operating principle and advantages: During use, the base plate 1 can be fixed to a designated position in the mine using bolts and other connecting parts via the fixing plates 5 on the front, back, and the middle of both sides, as well as the countersunk holes. Then, by operating the clamping assembly 25, the sliding plate 258 is pushed to slide in the sliding groove 257 at the bottom of the trough 24. The sliding plate 258 drives the V-shaped guide plate 259 to move. The guide wheel 2511 in the hinge groove 2510 at the outer end of the guide plate 259 contacts the adjusting plate 256 and applies a pushing force. The adjusting plate 256 drives the slider 253 to slide in the rail frame 251 against the elastic force of the limit spring 252, causing the locking pin 254 to be pulled out of the locking hole 255. During installation, align the mounting block 23 at the bottom of the power supply body 3 with the mounting groove 22 at the top of the mounting plate 21, and slide it into the mounting groove 22 to complete the initial positioning. After installation, release the sliding plate 258. Under the action of the limit spring 252, the slider 253 returns to its original position, and the locking pin 254 re-inserts into the locking hole 255 on the inner side of the mounting plate 21, thus achieving a firm connection between the mounting plate 21 and the base plate 1, thereby fixing the power supply body 3. When the power supply body 3 is running, its internal voltage regulation circuit automatically monitors the input voltage. When the mains voltage fluctuates or the load changes, the voltage regulation circuit adjusts the circuit parameters to maintain the output DC voltage stable within the set range. The enclosure supplies power to the underground electrical equipment. Heat dissipation windows 7 on both sides of the power supply body 3, in conjunction with the internal heat dissipation structure, dissipate heat. Dustproof nets 8 inside the heat dissipation windows 7 prevent dust and debris from entering the power supply body 3. When ore or debris in the mine compresses the power supply device, the buffer protection mechanism 4 activates. The compressive force is first transmitted to the protective baffle 46. The protective baffle 46, with its isosceles triangular cross-section design, disperses some of the impact force. Simultaneously, the protective baffle 46 compresses the buffer spring 43 and damper 44 within the annular frame 42 via the coupling 45. The buffer spring 43 absorbs some energy, slowing the impact speed, and the damper… 44 consumes energy through the movement of the internal damping medium, converting kinetic energy into heat energy. The two work together to greatly reduce the impact force and prevent the impact force from acting directly on the power supply body 3, ensuring the safe operation of the power supply body 3. In addition, its isosceles triangular protective baffle 46 can guide falling rocks and other impurities, preventing falling rocks and debris from accumulating on the top of the protective baffle 46. It can be seen that the device cooperates with the mounting slot 22 of the mounting mechanism 2 and the clamping component 25 to achieve rapid positioning and firm installation of the power supply body 3. The structure of the limit spring 252, slider 253, and locking pin 254 in the clamping component 25 ensures that the mounting plate 21 is not easy to loosen after being clamped.The adjustment structure composed of components such as guide plate 259 and sliding plate 258 facilitates fine-tuning of the position of mounting plate 21 during installation, improving installation efficiency and accuracy. The design of fixing plate 5 and countersunk hole facilitates the fixing of the device to the structure inside the mine, enhancing overall stability. At the same time, the device adopts a double buffer system composed of buffer spring 43 and damper 44 of buffer protection mechanism 4, which can effectively absorb and consume external impact force, reduce the impact on the power supply body 3, reduce the risk of power supply device explosion due to compression, ensure the stable power supply of underground electrical equipment and the safety of miners' lives. The shape design of protective baffle 46 optimizes the impact force dispersion path, further improving the protection effect. Dustproof net 8 can prevent dust and other particles in the mine from entering the power supply body 3, avoid the impact of dust accumulation on heat dissipation or cause circuit failure, and extend the service life of the power supply device. The buffer spring 43 can be a cylindrical helical spring with a diameter of 10-15mm, a free length of 80-120mm, and a stiffness coefficient of 20-50N / mm; the damper 44 can be a hydraulic damper with a damping force of 50-100N and a stroke of 30-50mm; the thickness of the fixing plate 5 is generally 5-8mm, and the countersunk hole diameter is suitable for M8-M12 bolts; the core components of the voltage regulation circuit of the power supply body 3 can be three-terminal voltage regulators such as LM7805 and LM317, and are paired with 1000μF / 50V electrolytic capacitors for filtering; the controller can be a PLC controller, specifically a Siemens S7-200SMART or a microcontroller, specifically an STM32F103 series, which can be installed in the protective box on the side of the base plate 1 or the front of the power supply body 3; the power supply method is to use the internal battery of the device or an external mine explosion-proof power supply, which is regulated by the power supply body 3 to power the controller and various electronic components.

Claims

1. A mine-use explosion-proof DC regulated power supply device, characterized in that: Includes a base plate (1), an installation mechanism (2) is fixedly installed in the middle of the top of the base plate (1), a power supply body (3) is installed on the top of the base plate (1) through the installation mechanism (2), a buffer protection mechanism (4) is fixedly installed on the top of the base plate (1), and the buffer protection mechanism (4) is located on the outside of the power supply body (3); The installation mechanism (2) includes an installation plate (21). The top two sides of the installation plate (21) are provided with installation grooves (22). An installation block (23) is slidably connected inside the installation groove (22). The top of the installation block (23) is fixedly connected to the bottom of the power supply body (3). A groove (24) is provided on the rear side of the installation plate (21). A snap-fit ​​assembly (25) is fixedly installed inside the groove (24). The outer side of the snap-fit ​​assembly (25) is snapped into the inner side of the installation plate (21).

2. The explosion-proof DC regulated power supply device for mining according to claim 1, characterized in that: The mounting assembly (25) includes a rail frame (251), which is fixedly installed inside the groove (24). Limiting springs (252) are fixedly connected to both ends of the rail frame (251). A slider (253) is fixedly installed on the outer end of the limiting spring (252). The slider (253) is slidably connected to the inside of the rail frame (251). A locking pin (254) is fixedly installed on the outer side of the slider (253). A locking hole (255) is opened on the inner side of the mounting plate (21). The outer end of the locking pin (254) is inserted into the locking hole (255).

3. The explosion-proof DC regulated power supply device for mining according to claim 2, characterized in that: An adjusting plate (256) is fixedly connected to the outside of the slider (253). A sliding groove (257) is provided at the bottom of the groove (24). A sliding plate (258) is slidably connected inside the sliding groove (257). A guide plate (259) is fixedly installed on the top of the sliding plate (258). The guide plate (259) has a V-shaped top view. The front end of the guide plate (259) and the adjusting plate (256) are connected by a transmission.

4. The explosion-proof DC regulated power supply device for mining according to claim 3, characterized in that: The guide plate (259) has a hinge groove (2510) at its outer end. A guide wheel (2511) is rotatably connected inside the hinge groove (2510). The front end of the guide wheel (2511) is fitted and connected to the inside of the guide plate (259).

5. A mine explosion-proof DC regulated power supply device according to claim 1, characterized in that: The power supply body (3) has heat dissipation windows (7) on both sides of the front and back, and a dustproof net (8) is fixedly connected inside the heat dissipation window (7).

6. The explosion-proof DC regulated power supply device for mining according to claim 1, characterized in that: The base plate (1) is fixedly installed with a fixing plate (5) on the front, back and middle of both sides. The fixing plate (5) has an installation hole (6) at its outer end, which is a countersunk hole.

7. A mine explosion-proof DC regulated power supply device according to claim 6, characterized in that: The buffer protection mechanism (4) includes a support shaft (41), a ring frame (42) is fixedly installed on the top of the support shaft (41), a buffer spring (43) is fixedly installed inside the ring frame (42), a damper (44) is fixedly connected inside the ring frame (42) on the inner side of the buffer spring (43), a connecting shaft (45) is fixedly connected to the top of the buffer spring (43), and a protective baffle (46) is fixedly installed on the top of the connecting shaft (45). The protective baffle (46) has an overall cross-sectional shape of an isosceles triangle.

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