A sealed low-temperature-resistant electric underground mine car battery assembly

Abstract

The application discloses a sealed low-temperature-resistant electric underground mine car battery assembly and belongs to the technical field of mine car batteries. The electrode sleeve gradually separates from the electrode column below, the electrode connection circuit is disconnected, passive power-off is realized, when the external load of the sealing top plate is removed, the vertical reset spring, the horizontal reset spring and the arc-shaped reset spring are synchronously released, the sealing top plate is pulled to be lifted and reset, the pressing frame is synchronously lifted upward to release the connecting frame, the lifting strip is rotated and reset under the rebounding action of the arc-shaped reset spring, the lifting column falls along the lifting sliding groove, the electrode sleeve falls again to cover the electrode column, and the circuit is automatically restored to be conducted. When the battery is damaged by falling stones and heavy extrusion in the underground, power supply can be quickly cut off, electrode short circuit and sparking are avoided, the severe working conditions of underground mines, such as dampness and many stones, are adapted, and the explosion-proof safety performance of the battery is improved.

Description

Technical Field

[0001] This invention relates to the field of mining vehicle battery technology, specifically a sealed, low-temperature resistant electric underground mining vehicle battery assembly. Background Technology

[0002] Underground mining operations are characterized by a complex and harsh environment. Underground tunnels are narrow and cramped, with easily crumbling supporting rock walls. During mining and transportation, frequent rockfalls and debris splashing occur, and the tunnels are often perpetually flooded and seeping. The air is humid, cold, and damp, and the tunnel bottoms are constantly filled with slag, gravel, and mud. Electric underground mining trucks, as the core transport equipment for underground ore transfer, mostly rely on power batteries as their power source. The power battery directly determines the truck's range and operational stability, making it an indispensable key component for ensuring continuous underground mining and transportation operations. Underground power batteries are subjected to multiple adverse conditions over a long period, including rockfall impacts, heavy loads, humid conditions, and freezing temperatures. Compared to batteries used in surface vehicles, mining power batteries operate under more stringent conditions, placing higher demands on their sealing, impact resistance, explosion-proof performance, and low-temperature adaptability.

[0003] Existing sealed, low-temperature resistant electric underground mining truck battery packs are easily damaged when the trucks are operating in underground mines. Falling rocks in the tunnels and scraping or squeezing the trucks can easily hit the battery top cover. After the battery is damaged by external pressure, the internal electrodes are prone to short circuits and sparks, which can cause the battery to catch fire or even explode. Fires in the confined space underground are difficult to handle and pose a major safety hazard. At the same time, some batteries with power-off protection use a manual reset mode. After the roof is pressured and the power is cut off, the machine needs to be disassembled and manually reconnected to restore power. The truck cannot be quickly restarted after a temporary power outage due to pressure, which seriously affects the efficiency of continuous underground transportation.

[0004] Based on this, the present invention designs a sealed, low-temperature resistant battery assembly for electric underground mining vehicles to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a sealed, low-temperature resistant battery assembly for electric underground mining trucks, to solve the problems mentioned in the background art. These problems include the ease with which existing sealed, low-temperature resistant battery assemblies for electric underground mining trucks can be damaged when the truck is operating in underground mines. Falling rocks in the tunnels and scraping or squeezing the battery can easily damage the battery cover. If the battery is damaged by external force, the internal electrodes are prone to short-circuiting and sparking, potentially causing the battery to catch fire or even explode. Fires in the confined space underground are difficult to handle and pose significant safety hazards. Furthermore, some batteries with power-off protection require manual resetting, necessitating disassembly and manual rewiring to restore power after a power outage due to pressure on the roof. This also prevents the truck from quickly restarting after a temporary power outage, severely impacting the efficiency of continuous underground transportation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A sealed, low-temperature resistant electric underground mining vehicle battery assembly includes a sealed battery box with three battery chambers equidistantly arranged inside. A battery body is placed inside each battery chamber. Lifting and power-off mechanisms are symmetrically arranged on both sides of the top of the battery body. Fixing and snapping mechanisms are slidably installed on both sides of the inner wall of each battery chamber. Lifting and lifting cover mechanisms are equidistantly arranged on the top of the sealed battery box, and the lifting and lifting cover mechanisms cover the top of the battery chambers.

[0008] As a further embodiment of the present invention, the top of the sealed battery box is provided with positioning slots at the four corners of each battery cavity opening, the bottom of both sides of the inner wall of the battery cavity is provided with symmetrical pushing grooves, the bottom of the battery cavity is fixedly installed with pads on both sides, and multiple fixing plates are fixedly installed on both sides of the sealed battery box at positions corresponding to the battery cavity.

[0009] As a further embodiment of the present invention, the battery body is placed between two pads and closely attached to the battery cavity. The top of both sides of the battery body is symmetrically provided with fixing slots. A handle is symmetrically mounted at the center of the top of the battery body via a pin. Electrode posts are provided on both sides of the top of the battery body, and fixing blocks are symmetrically fixedly mounted on both sides of the top of the battery body located on the electrode posts.

[0010] As a further embodiment of the present invention, the fixing and snapping mechanism includes a lifting frame, which slides against the inner wall of the battery cavity. A rectangular through groove is provided through the center of the lifting frame. Mounting slide rods are symmetrically fixedly installed on the inner wall of the rectangular through groove. Fixed sliding plates are slidably installed through the top surfaces of the two mounting slide rods and are fixedly connected to the inner wall of the battery cavity. A downward pressure spring is sleeved on the surface of the mounting slide rod at the bottom of the fixed sliding plate. Pushing frames are symmetrically fixedly installed at the bottom of the lifting frame, and pushing grooves are symmetrically provided through the sides of the pushing frames. A fixing block is slidably installed between the two pushing frames.

[0011] As a further embodiment of the present invention, push connecting columns are symmetrically fixedly installed on both sides of the fixed block, and the push connecting columns are slidably connected inside the push groove. Two push connecting columns on the same side are fixedly installed with a movable rectangular block through the push groove. A fixing inclined block is fixedly installed on the side of the movable rectangular block closer to the battery body, and the fixing inclined block is correspondingly engaged with the fixing slot. A push column is fixedly installed on the side of the movable rectangular block away from the push connecting columns, and the push column is slidably connected inside the push inclined groove.

[0012] As a further embodiment of the present invention, the lifting power-off mechanism includes a mounting frame, a rectangular slot is provided through the inside of the mounting frame, and the rectangular slot is correspondingly engaged with the bottom of the electrode post. Fixed slots are respectively provided through the center of both sides of the mounting frame, and the fixed slots are correspondingly engaged with the surface of the fixed block. Support frames are fixedly installed at the four corners of the top of the mounting frame. A lifting bar is rotatably installed on the top of the support frame through a pin. A fixed baffle is fixedly installed on the bottom of the inner side of the support frame. An arc-shaped slide rod is fixedly installed on the side of the lifting bar, and the surface of the arc-shaped slide rod is slidably connected to the fixed baffle. An arc-shaped return spring is sleeved on the surface of the arc-shaped slide rod on the side of the fixed baffle.

[0013] As a further embodiment of the present invention, a lifting column is slidably connected between the bottom ends of two lifting bars on the same side of the mounting frame, and a connecting frame is slidably connected between the top ends of two lifting bars on the same side of the mounting frame. Connecting rods are symmetrically fixedly installed at both ends of the two connecting frames. Positioning plates are fixedly installed at the center of both sides of the connecting frame. An electrode sleeve is provided at the center of the top of the mounting frame. Lifting grooves are provided through both ends of the electrode sleeve, and the lifting column is slidably connected inside the lifting groove. A limiting groove is symmetrically provided at the top of the electrode sleeve, and the limiting groove is correspondingly locked with the connecting rod.

[0014] As a further embodiment of the present invention, the lifting cover mechanism includes a rectangular frame, which is attached to the top of the sealed battery box and covers the top of the corresponding battery cavity. Positioning blocks are fixedly installed at the four corners of the bottom of the rectangular frame, and the positioning blocks are inserted into the positioning slots. Fixing blocks are fixedly installed at the center of both sides of the inner wall of the rectangular frame. Lifting sliders are fixedly installed on both sides of the inner wall of the rectangular frame located on the fixing blocks. A dust cover is fixedly installed at the top edge of the rectangular frame. A sealing top plate is fixedly installed on the top of the dust cover. Lower pressure frames are symmetrically fixedly installed on both sides of the bottom of the sealing top plate, and the lower pressure frames are inserted into the connecting frame.

[0015] As a further embodiment of the present invention, the bottom of the sealing top plate is provided with multiple rectangular mounting slots on both sides of the inner side of the dust cover. A guide slide rod is fixedly installed on the inner wall of the rectangular mounting slot. A movable slide is slidably installed through the surface of the guide slide rod. A connecting top bar is rotatably installed at the bottom of the movable slide through a pin. A fixing frame is rotatably installed at the bottom end of the connecting top bar through a pin. The fixing frame is fixedly connected to both sides of the top of the rectangular frame. A transverse return spring is sleeved on the surface of the guide slide rod on one side of the movable slide. Mounting slides are fixedly installed at the four corners of the bottom of the sealing top plate inside the dust cover. A limiting slide rod is fixedly installed inside the mounting slide. A lifting slider is slidably connected through the surface of the bottom end of the limiting slide rod. A vertical return spring is sleeved on the surface of the limiting slide rod on the top of the lifting slider. Connecting buckles are fixedly installed on both sides of the rectangular frame. The connecting buckles are correspondingly engaged with the fixing plate buckles.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention comprises an electrode sleeve, electrode post, sealing top plate, lower pressure frame, push connecting frame, lifting bar, and lifting column. The electrode sleeve is pre-positioned on the outside of the electrode post of the battery body via a rectangular slot and a fixed slot, which are engaged with the mounting frame to achieve conductive contact between the electrode sleeve and the electrode post. Subsequently, the lifting cover mechanism is aligned with the battery cavity and fastened to the top of the sealed battery box. The positioning block at the bottom of the rectangular frame is inserted into the positioning slot of the sealed battery box to complete the alignment. The lower pressure frame at the lower end of the sealing top plate is precisely inserted into the connection of the lifting power-off mechanism. On the frame, after the assembly and connection of each transmission component are completed, the equipment is in normal power supply state. When the underground ore car travels bumpily, the load is transferred to the sealed top plate. The sealed top plate moves downward along the limit slide rod, which simultaneously drives the lower pressure frame to push the connecting frame downward. The connecting frame presses down on the top of the lifting bars on both sides. The lifting bars rotate around the support frame pin. The arc-shaped slide rod on the side of the lifting bar slides along the fixed baffle and compresses the arc-shaped return spring. The lifting column at the bottom of the lifting bar slides upward along the lifting groove of the electrode sleeve. At this stage, the lifting column only... During the free-flow movement within the chute, the electrode sleeve remains tightly gripping the electrode post, maintaining circuit continuity. The sealing top plate continues to descend under the compression of the vertical return spring, while the lower pressure frame continuously presses down on the connecting frame. The lifting bar continuously rotates around the fulcrum. After the lifting column reaches the top limit position of the lifting chute, it transitions from sliding limit to top support force. As the end of the lifting bar continues to rise, the lifting column pushes the electrode sleeve upwards, gradually detaching it from the electrode post below. The electrode connection circuit is disconnected, achieving passive power cut-off. When the external load on the sealing top plate is removed, the vertical... The return spring, horizontal return spring, and arc-shaped return spring release their elastic force simultaneously, pulling the sealing top plate to rise and reset. The lower pressure frame rises upward simultaneously to release the connecting frame. The lifting bar rotates and resets under the rebound action of the arc-shaped return spring. The lifting column falls back along the lifting slide, and the electrode sleeve falls back to cover the electrode column. The circuit automatically resumes conduction. When the battery is damaged by falling rocks or heavy loads in the mine, the power supply can be quickly cut off to avoid short circuits and sparks in the electrodes. It is suitable for the harsh working conditions of damp and gravelly underground mines and improves the explosion-proof safety performance of the battery. 2. This invention, by setting up a fixed pressure block, a pushing column, a lifting frame, a pushing inclined groove, a fixed inclined block, and a fixed slot, allows for easy removal of the battery body from the battery cavity when the lifting cover is opened. This releases the pressure of the fixed pressure block on the lifting frame, and the lifting frame is moved upwards by hand, causing the pushing frame to rise synchronously. This allows the pushing column to slide upwards inside the pushing inclined groove until the fixed inclined block is pulled out of the fixed slot, unlocking the limit. The battery body can then be directly removed upwards using the handle. After placing a new battery body into the battery cavity, the battery body rests on top of the two pads, with both sides of the battery body pressed against the fixed inclined block. Under the rebound action of the downward spring, the lifting frame is pressed down, causing the pushing column to move downwards inside the pushing inclined groove until it is engaged. Then, the lifting cover mechanism is covered and fixed on top of the sealed battery box, pressing the fixed pressure block firmly against the top of the lifting frame. This ensures that the fixed inclined block is engaged in the fixed slot and will not easily come off, thus facilitating the disassembly and replacement of the battery body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the sealed battery box of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the battery body of the present invention;

[0021] Figure 4 This is a schematic diagram of the lifting frame and pad block of the present invention;

[0022] Figure 5 This is a cross-sectional structural diagram of the lifting frame and pushing frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the fixing block and the fixing inclined block of the present invention;

[0024] Figure 7 This is a cross-sectional view of the mounting frame and lifting bars of the present invention;

[0025] Figure 8 This is a cross-sectional view of the connecting frame and lifting bar of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the electrode sleeve of the present invention;

[0027] Figure 10 This is a schematic diagram of the connecting frame and the lower pressure frame of the present invention;

[0028] Figure 11 This is a cross-sectional view of the rectangular frame and the sealed top plate of the present invention.

[0029] Figure 12 This is a cross-sectional view of the rectangular frame and dust cover of the present invention.

[0030] Figure 13 This is a cross-sectional view of the sealing top plate and the lower pressure frame of the present invention;

[0031] Figure 14 This is a schematic diagram of the lifting slider and mounting bracket of the present invention.

[0032] The attached diagram lists the components represented by each number as follows: 1. Sealed battery box; 101. Battery cavity; 102. Positioning slot; 103. Pushing sloping groove; 104. Pad; 105. Fixing plate buckle; 2. Battery body; 201. Fixing slot; 202. Handle; 203. Electrode post; 204. Fixing block; 3. Fixing snap-fit ​​mechanism; 301. Lifting frame; 302. Rectangular through groove; 303. Mounting slide bar; 304. Fixing slide plate; 305. Downward spring; 306. Pushing frame; 307. Pushing sloping groove; 308. Fixing block; 309. Pushing connecting post; 310. Moving rectangular block; 311. Fixing sloping block; 312. Pushing post; 4. Lifting power-off mechanism; 401. Mounting frame; 402. Rectangular slot; 403. Fixing slot; 404. Support frame; 405. Lifting 406. Lifting bar; 407. Fixed baffle; 408. Arc-shaped slide bar; 409. Arc-shaped return spring; 410. Lifting column; 411. Connecting frame; 412. Connecting rod; 413. Positioning plate; 414. Electrode sleeve; 415. Lifting slide groove; 416. Limiting slide groove; 5. Lifting cover plate mechanism; 501. Rectangular frame; 502. Positioning block; 503. Fixed pressure block; 504. Lifting slider; 505. Dust cover; 506. Sealing top plate; 507. Rectangular mounting groove; 508. Guide slide bar; 509. Moving slide; 510. Connecting top bar; 511. Fixed frame; 512. Horizontal return spring; 513. Lower pressure frame; 514. Mounting slide; 515. Limiting slide bar; 516. Vertical return spring; 517. Connecting buckle. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-14 The present invention provides a technical solution:

[0035] A sealed, low-temperature resistant electric underground mining vehicle battery assembly includes a sealed battery box 1. The sealed battery box 1 has three battery chambers 101 equidistantly arranged inside. A battery body 2 is placed inside the battery chamber 101. Lifting and power-off mechanisms 4 are symmetrically arranged on both sides of the top of the battery body 2. Fixing and snapping mechanisms 3 are slidably installed on both sides of the inner wall of the battery chamber 101. Lifting and lifting cover mechanisms 5 are equidistantly arranged on the top of the sealed battery box 1, and the lifting and lifting cover mechanisms 5 cover the top of the battery chamber 101 respectively.

[0036] During operation, the battery bodies 2 are placed one by one into the independent battery cavities 101 of the sealed battery box 1. The battery bodies 2 are laterally limited and locked by the fixing and snapping mechanism 3. The lifting and power-off mechanism 4 is pre-installed at the electrode assembly position of the battery body 2. Finally, the lifting and cover plate mechanism 5 is snapped onto the upper opening of each battery cavity 101 to achieve full cavity sealing and covering. The lifting and cover plate mechanism 5 is close to the fixing and snapping mechanism 3 to fix the battery body 2 inside the battery cavity 101. The lifting and power-off mechanism 4 is linked to conduct the electrode circuit. The independent arrangement structure of each cavity realizes the modular management of a single battery. The failure of a single cavity does not affect the operation of the other batteries.

[0037] As a further embodiment of the present invention, push grooves 103 are symmetrically provided on the bottom of both sides of the inner wall of the battery cavity 101, and pads 104 are fixedly installed on both sides of the bottom of the battery cavity 101. The battery body 2 is placed between the two pads 104 and is close to the battery cavity 101. The fixing and snapping mechanism 3 includes a lifting frame 301, which slides close to the inner wall of the battery cavity 101. A rectangular through groove 302 is provided through the center of the lifting frame 301. Mounting slide rods 303 are symmetrically fixedly installed on the inner wall of the rectangular through groove 302. Fixed sliding plates 304 are slidably installed through the top of the surfaces of the two mounting slide rods 303 and are fixedly connected to the inner wall of the battery cavity 101. A compression spring 305 is sleeved on the surface of the mounting slide rods 303 at the bottom of the fixed sliding plate 304. Pushing frames 306 are symmetrically fixedly installed at the bottom of the lifting frame 301, and push grooves 307 are symmetrically provided through the sides of the pushing frames 306. A fixing block 308 is slidably installed between the two pushing frames 306. Push connecting posts 309 are symmetrically fixedly installed on both sides of the fixed block 308, and the push connecting posts 309 are slidably connected inside the push groove 307. On the same side, two push connecting posts 309 are fixedly installed through the push groove 307 and a movable rectangular block 310 is fixedly installed. A fixed inclined block 311 is fixedly installed on the side of the movable rectangular block 310 closer to the battery body 2. Fixed slots 201 are symmetrically provided on the top of both sides of the battery body 2, and the fixed inclined block 311 is correspondingly engaged with the fixed slot 201. A push post 312 is fixedly installed on the side of the movable rectangular block 310 away from the push connecting posts 309, and the push post 312 is slidably connected inside the push inclined groove 103.

[0038] During operation, the battery body 2 rests on the pad 104 for bottom support. The fixed pressure block 503 of the lifting cover mechanism 5 presses down on the lifting frame 301. The lifting frame 301 slides along the mounting slide rod 303 to compress the pressure spring 305. The lifting frame 301 drives the push frame 306 to move down synchronously. The push slide groove 307 squeezes the push connecting column 309, pushing the moving rectangular block 310 to move laterally towards the side of the battery body 2. The push column 312 slides along the push inclined groove 103 until the fixed inclined block 311 is locked into the fixed slots 201 on both sides of the battery body 2. When removing the battery, the lifting cover mechanism 5 is opened, the pressure spring 305 rebounds and lifts the lifting frame 301 upward, pulling the push frame 306 upward. Under the guidance of the push inclined groove 103, the push column 312 slides upward, driving the moving rectangular block 310 to retract outward, so that the fixed inclined block 311 is dislodged from the fixed slot 201, unlocking the battery limit. The battery body 2 can then be removed through the handle 202.

[0039] As a further embodiment of the present invention, a handle 202 is symmetrically mounted at the center of the top of the battery body 2 via a pin shaft, and electrode posts 203 are respectively provided on both sides of the top of the battery body 2. Fixing blocks 204 are symmetrically fixedly mounted on both sides of the electrode posts 203 on the top of the battery body 2.

[0040] The lifting and power-off mechanism 4 includes a mounting frame 401. A rectangular slot 402 is provided through the inside of the mounting frame 401, and the rectangular slot 402 is correspondingly engaged with the bottom of the electrode post 203. Fixed slots 403 are provided through the center of both sides of the mounting frame 401, and the fixed slots 403 are correspondingly engaged with the surface of the fixed block 204. Support frames 404 are fixedly installed at the four corners of the top of the mounting frame 401. Lifting bars 405 are rotatably installed on the top of the support frames 404 through a pin. A fixed baffle 406 is fixedly installed on the bottom of the inner side of the support frames 404. An arc-shaped slide rod 407 is fixedly installed on the side of the lifting bar 405, and the surface of the arc-shaped slide rod 407 is slidably connected to the fixed baffle 406. An arc-shaped return spring 408 is sleeved on the surface of the arc-shaped slide rod 407 on one side of the fixed baffle 406.

[0041] During operation, the mounting frame 401 is fitted onto the lower end of the electrode post 203 using the rectangular slot 402. The fixing slot 403 engages with the surface of the fixing block 204, thus securing the lifting power-off mechanism 4 to the top surface of the battery body 2. This prevents the lifting power-off mechanism 4 from shifting or becoming misaligned. When the sealing top plate 506 is pressed down, the lowering frame 513 presses down on the connecting frame 410, causing the lifting bar 405 to flip downwards with the top pin of the support frame 404 as the fulcrum. The lifting bar 405 drives the arc-shaped slide bar 407 to slide along the fixed baffle 406 and compress the arc-shaped return spring 408. After the external load disappears, the arc-shaped return spring 408 rebounds and pulls the arc-shaped slide bar 407 back to its original position, causing the lifting bar 405 to rotate in the opposite direction, and the mechanism returns to its initial assembly position.

[0042] As a further embodiment of the present invention, a lifting column 409 is slidably connected between the bottom ends of two lifting bars 405 on the same side of the mounting frame 401, and a connecting frame 410 is slidably connected between the top ends of two lifting bars 405 on the same side of the mounting frame 401. A connecting rod 411 is symmetrically fixedly installed at both ends of the two connecting frames 410. A positioning plate 412 is fixedly installed at the center of both sides of the connecting frame 410. An electrode sleeve 413 is provided at the center of the top of the mounting frame 401. Lifting grooves 414 are provided through both ends of the electrode sleeve 413, and the lifting column 409 is slidably connected inside the lifting groove 414. A limiting groove 415 is symmetrically provided at the top of the electrode sleeve 413, and the limiting groove 415 is correspondingly locked with the connecting rod 411.

[0043] During operation, the connecting rod 411 engages with the limiting slide groove 415 to limit the electrode sleeve 413. The electrode sleeve 413 completely encloses the electrode post 203, and the power supply circuit remains connected. The sealing top plate 506 is pressed downward, and the lower pressure frame 513 presses down on the connecting frame 410. The lifting bar 405 rotates around the fulcrum. The lifting column 409 first slides freely inside the lifting slide groove 414. After reaching the top of the lifting slide groove 414, the lifting column 409 pushes the electrode sleeve 413 upward. The electrode sleeve 413 is lifted and detached from the electrode post 203. The power supply circuit is cut off, achieving passive power failure. The load is removed, the lifting bar 405 resets, and the lifting column 409 slides down along the lifting slide groove 414. The electrode sleeve 413 falls and encloses the electrode post 203 again, and the circuit automatically resumes conduction.

[0044] As a further embodiment of the present invention, the lifting cover mechanism 5 includes a rectangular frame 501, which is attached to the top of the sealed battery box 1 and covers the top of the corresponding battery cavity 101. Positioning blocks 502 are fixedly installed at the four corners of the bottom of the rectangular frame 501. Positioning slots 102 are provided at the four corners of the opening of each battery cavity 101 on the top of the sealed battery box 1, and the positioning blocks 502 are correspondingly inserted into the positioning slots 102. Fixing blocks 503 are fixedly installed at the center of both sides of the inner wall of the rectangular frame 501. Lifting sliders 504 are fixedly installed on both sides of the inner wall of the rectangular frame 501 on the fixed blocks 503. Dust covers 505 are fixedly installed at the top edge of the rectangular frame 501. A sealing top plate 506 is fixedly installed on the top of the dust cover 505. Lower pressure brackets 513 are symmetrically fixedly installed on both sides of the bottom of the sealing top plate 506, and the lower pressure brackets 513 are correspondingly inserted into the connecting bracket 410.

[0045] During operation, the rectangular frame 501 is inserted into the positioning slots 102 at the four corners of the sealed battery box 1, which are located in the battery cavity 101, by the bottom positioning block 502 to complete the alignment and installation. After the rectangular frame 501 is fixed to the top of the sealed battery box 1, the fixing block 503 presses the top of the lower lifting frame 301, and the locking fixing mechanism 3 locks the battery body 2 into the battery cavity 101. The sealed top plate 506 is connected to the rectangular frame 501 through the flexible dust cover 505. When rocks or heavy objects fall into the well and squeeze the sealed top plate 506, the sealed top plate 506 compresses the dust cover 505 downward and drives the bottom pressure frame 513 to move down synchronously. The pressure frame 513 directly presses against the connecting frame 410, completing the lifting and power-off mechanism 4. The lifting slider 504 slides vertically along the limit slider 515 as the sealed top plate 506 rises and falls, limiting the lifting trajectory of the sealed top plate 506 to prevent it from tilting.

[0046] As a further embodiment of the present invention, the bottom of the sealing top plate 506 is provided with multiple rectangular mounting slots 507 on both sides inside the dust cover 505. A guide slide rod 508 is fixedly mounted on the inner wall of each rectangular mounting slot 507. A movable slide 509 is slidably mounted through the surface of the guide slide rod 508. A connecting top bar 510 is rotatably mounted on the bottom of the movable slide 509 via a pin. A fixing frame 511 is rotatably mounted on the bottom end of the connecting top bar 510 via a pin, and the fixing frame 511 is fixedly connected to both sides of the top of the rectangular frame 501. A transverse return spring 5 is sleeved on the surface of the guide slide rod 508 on one side of the movable slide 509. 12. At the four bottom corners of the sealed top plate 506 inside the dust cover 505, mounting brackets 514 are fixedly installed. Limiting slide rods 515 are fixedly installed inside the mounting brackets 514, and the lifting slider 504 is slidably connected to the surface of the bottom end of the limiting slide rod 515. A vertical return spring 516 is sleeved on the surface of the limiting slide rod 515 at the top of the lifting slider 504. Multiple fixing plate buckles 105 are fixedly installed on both sides of the sealed battery box 1 at positions corresponding to the battery cavity 101. Connecting buckles 517 are fixedly installed on both sides of the rectangular frame 501, and the connecting buckles 517 are correspondingly engaged with the fixing plate buckles 105.

[0047] During operation, the sealing top plate 506 is pressed down, and the lifting slider 504 slides upward along the limiting slide bar 515 to compress the vertical return spring 516. The downward sinking of the sealing top plate 506 pulls the connecting top bar 510 to deflect, pushing the moving slide 509 to slide laterally along the guide slide bar 508 and squeeze the lateral return spring 512. After the external load is removed, the vertical return spring 516 and the lateral return spring 512 release their elastic force simultaneously, driving the sealing top plate 506 to rise and return smoothly. The connecting buckle 517 and the fixing plate buckle 105 engage with each other, locking the rectangular frame 501 to the upper end of the sealed battery box 1 to prevent the cover from loosening due to vehicle bumps.

[0048] Working principle of this invention:

[0049] The battery body 2 is placed into the corresponding battery cavity 101 from above the sealed battery box 1. The bottom of the battery body 2 rests on the upper surface of the pads 104 on both sides inside the battery cavity 101. The pads 104 provide cushioning support for the battery body 2. The fixed slots 201 reserved on both sides of the battery body 2 are directly opposite the fixed inclined blocks 311. The downward spring 305 rebounds and pushes the lifting frame 301 down on the inner wall of the battery cavity 101, causing the fixed block 308 and the moving rectangular block 310 to move down synchronously. The pushing column 312 slides down inside the pushing inclined groove 103 and approaches the battery body 2, so that the pushing connecting column 309 slides inside the pushing slide groove 307 until the fixed inclined block 311 is inserted into the corresponding fixed slot 201.

[0050] The lifting power-off mechanism 4 is pre-installed at the electrode post 203 and fixing block 204 positions on the top surface of the battery body 2. The mounting frame 401 is fitted onto the lower end of the electrode post 203 by the rectangular slot 402. The fixing slots 403 on both sides of the mounting frame 401 are engaged and fixed to the surface of the fixing block 204, completing the pre-installation limit of the lifting power-off mechanism 4. Then, the rectangular frame 501 of the lifting cover mechanism 5 is aligned with the upper opening of the battery cavity 101, so that the positioning blocks 502 at the four corners of the bottom of the rectangular frame 501 are inserted into the positioning slots 102 at the four corners of the battery cavity 101 to complete the precise positioning. The rectangular frame 501 is pressed down, and the connecting buckles 517 on both sides of the frame are locked together with the fixing plate buckles 105 on the side of the sealed battery box 1, realizing the connection between the lifting cover mechanism 5 and the sealed battery box 1. The battery box 1 is locked and sealed. The fixing block 503 inside the rectangular frame 501 falls and presses against the top of the lifting frame 301, ensuring that the lifting frame 301 will not slide freely inside the battery cavity 101. At the same time, the lower pressing frame 513 integrally set at the lower end of the sealing top plate 506 is inserted downward into the connecting frame 410 of the lifting power-off mechanism 4. The connecting rod 411 is inserted into the top limiting slide groove 415 of the electrode sleeve 413. The electrode sleeve 413 falls naturally and completely wraps the surface of the electrode post 203, so that the positive and negative electrodes of the battery body 2 form a conductive circuit. After assembly, it enters the normal power supply state. At the same time, the dust cover 505 on the upper edge of the rectangular frame 501 seals the cavity gaps, preventing moisture and dust from entering the battery cavity 101 and achieving sealing and low-temperature protection.

[0051] Under normal underground mining operations and slight bumps, the falling gravel in the mine lands on top of the sealed top plate 506, causing the sealed top plate 506 to sink slightly. The pressure frame 513 slightly presses down on the connecting frame 410, and the lifting bar 405 rotates slightly around the pin of the support frame 404. The lifting column 409 only slides within the lifting grooves 414 on both sides of the electrode sleeve 413, and cannot lift the electrode sleeve 413 upwards. The electrode sleeve 413 always holds the electrode column 203 tightly, the power supply line is continuously connected, the equipment is stably powered, the multi-layer spring buffer structure absorbs vibration and impact, and the dust cover 505 seals the cavity to reduce the intrusion of cold air, ensuring the battery operating temperature is stable in the low-temperature underground environment and improving cold resistance.

[0052] When rocks fall and crush the sealing roof 506 in the underground tunnel, large pieces of gravel compress it, or materials press down on it, the sealing roof 506 bears an extremely large load and continuously compresses and displaces downward. As the sealing roof 506 presses down, the lifting slider 504 slides along the limit slide rod 515, compressing the vertical return spring 516. The sinking of the sealing roof 506 pulls the connecting top bar 510 to rotate, pushing the moving slide 509 to slide laterally along the guide slide rod 508, compressing the lateral return spring 512. The lowering frame 513 continues to push the connecting frame 4 downward. 10. This forces the lifting bar 405 to rotate significantly around the top pin. The arc-shaped slide bar 407 on the side of the lifting bar 405 slides along the fixed baffle 406 to compress the arc-shaped return spring 408. The lifting bar 405 rotates significantly, and the bottom lifting column 409 moves up to the top of the lifting groove 414, changing from free sliding to rigid support. The lifting column 409 pushes the electrode sleeve 413 upward. After the electrode sleeve 413 is lifted, it gradually separates from the lower electrode column 203. The electrode conductive circuit is instantly disconnected, and the battery stops outputting electrical energy.

[0053] After the falling rocks and crushing loads are removed, the vertical return spring 516 pulls down the lifting slider 504, and the horizontal return spring 512 pushes the moving slide 509 to reset. Together, they pull the sealing top plate 506 upward as a whole. The lower pressure frame 513 moves upward synchronously with the top plate, releasing the downward pressure restraint on the connecting frame 410. The arc-shaped return spring 408 rebounds and pulls the arc-shaped slide rod 407 to reset, driving the lifting bar 405 to rotate in the opposite direction to reset. The lifting column 409 falls back down along the lifting slide groove 414. The electrode sleeve 413 loses its lifting support and covers the electrode column 203 again. The electrode re-attaches and conducts electricity. The battery body 2 automatically resumes normal power supply. The equipment can be restored to operation without manual disassembly and maintenance.

Claims

1. A sealed, low-temperature resistant battery assembly for an electric underground mining vehicle, comprising a sealed battery box (1), characterized in that: The sealed battery box (1) has three battery chambers (101) arranged at equal intervals inside. The battery body (2) is placed inside the battery chamber (101). The top of the battery body (2) is symmetrically provided with lifting and power-off mechanisms (4). The inner walls of the battery chamber (101) are respectively slidably installed with fixing and snapping mechanisms (3). The top of the sealed battery box (1) is provided with lifting cover mechanisms (5) arranged at equal intervals, and the lifting cover mechanisms (5) cover the top of the battery chamber (101).

2. The sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 1, characterized in that: The top of the sealed battery box (1) is provided with positioning slots (102) at the four corners of the opening of each battery cavity (101). The bottom of the inner walls of the battery cavity (101) is provided with push grooves (103) symmetrically. The bottom of the inner walls of the battery cavity (101) is provided with pads (104) fixedly installed on both sides. The sealed battery box (1) is provided with multiple fixing plates (105) fixedly installed on both sides of the sealed battery box (1) at positions corresponding to the battery cavity (101).

3. The sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 2, characterized in that: The battery body (2) is placed between two pads (104) and closely attached to the battery cavity (101). The top of both sides of the battery body (2) is provided with symmetrical fixing slots (201). A handle (202) is symmetrically installed at the center of the top of the battery body (2) by means of a pin. Electrode posts (203) are provided on both sides of the top of the battery body (2). Fixing blocks (204) are symmetrically fixed on both sides of the top of the battery body (2) located on the electrode posts (203).

4. The sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 3, characterized in that: The fixed locking mechanism (3) includes a lifting frame (301), which slides against the inner wall of the battery cavity (101). A rectangular through slot (302) is provided through the center of the lifting frame (301). Mounting slide rods (303) are symmetrically fixedly installed on the inner wall of the rectangular through slot (302). Fixed slide plates (304) are slidably installed through the top of the surfaces of the two mounting slide rods (303), and the fixed slide plates (304) are fixedly connected to the inner wall of the battery cavity (101). A compression spring (305) is sleeved on the surface of the mounting slide rod (303) at the bottom of the fixed slide plate (304). Pushing frames (306) are symmetrically fixedly installed at the bottom of the lifting frame (301), and pushing grooves (307) are symmetrically provided through the sides of the pushing frames (306). A fixing block (308) is slidably installed between the two pushing frames (306).

5. A sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 4, characterized in that: The fixed block (308) is symmetrically fixed on both sides with push connecting columns (309), and the push connecting columns (309) are slidably connected inside the push slide groove (307). The two push connecting columns (309) on the same side are fixedly installed with a movable rectangular block (310) through the push slide groove (307). The movable rectangular block (310) is fixedly installed with a fixed inclined block (311) on the side closer to the battery body (2), and the fixed inclined block (311) is correspondingly engaged with the fixed slot (201). The movable rectangular block (310) is fixedly installed with a push column (312) on the side away from the push connecting column (309), and the push column (312) is slidably connected inside the push inclined groove (103).

6. A sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 3, characterized in that: The lifting and power-off mechanism (4) includes a mounting frame (401). A rectangular slot (402) is provided through the inside of the mounting frame (401), and the rectangular slot (402) is correspondingly engaged with the bottom of the electrode post (203). Fixed slots (403) are respectively provided through the center of both sides of the mounting frame (401), and the fixed slots (403) are correspondingly engaged with the surface of the fixed block (204). Support frames are fixedly installed at the four corners of the top of the mounting frame (401). (404) A lifting bar (405) is rotatably mounted on the top of the support frame (404) via a pin shaft. A fixed baffle (406) is fixedly mounted on the bottom of the inner side of the support frame (404). An arc-shaped slide rod (407) is fixedly mounted on the side of the lifting bar (405), and the surface of the arc-shaped slide rod (407) is slidably connected to the fixed baffle (406). An arc-shaped return spring (408) is sleeved on the surface of the arc-shaped slide rod (407) located on one side of the fixed baffle (406).

7. A sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 6, characterized in that: A lifting column (409) is slidably connected between the bottom ends of two lifting bars (405) on the same side of the mounting frame (401). A connecting frame (410) is slidably connected between the top ends of two lifting bars (405) on the same side of the mounting frame (401). A connecting rod (411) is symmetrically fixed at both ends of the two connecting frames (410). A positioning plate (412) is fixedly installed at the center of both sides of the connecting frame (410). An electrode sleeve (413) is provided at the center of the top of the mounting frame (401). Lifting grooves (414) are provided through both ends of the electrode sleeve (413). The lifting column (409) is slidably connected inside the lifting groove (414). A limiting groove (415) is symmetrically provided at the top of the electrode sleeve (413). The limiting groove (415) is locked to the connecting rod (411).

8. A sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 7, characterized in that: The lifting cover mechanism (5) includes a rectangular frame (501), and the rectangular frame (501) is attached to the top of the sealed battery box (1) and covers the top of the corresponding battery cavity (101). Positioning blocks (502) are fixedly installed at the four corners of the bottom of the rectangular frame (501), and the positioning blocks (502) are correspondingly inserted into the positioning slots (102). Fixing blocks (503) are fixedly installed at the center of both sides of the inner wall of the rectangular frame (501). Lifting sliders (504) are fixedly installed on both sides of the inner wall of the rectangular frame (501) located on the fixing blocks (503). Dust covers (505) are fixedly installed at the top edge of the rectangular frame (501). A sealing top plate (506) is fixedly installed on the top of the dust cover (505). A lower pressure frame (513) is symmetrically fixedly installed on both sides of the bottom of the sealing top plate (506), and the lower pressure frame (513) is correspondingly inserted into the connecting frame (410).

9. A sealed, low-temperature resistant battery assembly for an electric underground mining vehicle according to claim 8, characterized in that: The bottom of the sealing top plate (506) is provided with multiple rectangular mounting slots (507) on both sides inside the dust cover (505). A guide slide rod (508) is fixedly installed on the inner wall of the rectangular mounting slot (507). A movable slide (509) is slidably installed through the surface of the guide slide rod (508). A connecting top bar (510) is rotatably installed at the bottom of the movable slide (509) via a pin. A fixing frame (511) is rotatably installed at the bottom end of the connecting top bar (510) via a pin. The fixing frame (511) is fixedly connected to both sides of the top of the rectangular frame (501). The guide slide rod (508) is located on one side of the movable slide (509). A transverse return spring (512) is sleeved on the surface of the sealing top plate (506). At the bottom four corners of the dust cover (505), the sealing top plate (506) is fixedly installed with mounting brackets (514). A limit slide rod (515) is fixedly installed inside the mounting bracket (514). The lifting slider (504) is slidably connected to the surface of the bottom end of the limit slide rod (515). A vertical return spring (516) is sleeved on the surface of the limit slide rod (515) at the top of the lifting slider (504). Connecting buckles (517) are fixedly installed on both sides of the rectangular frame (501), and the connecting buckles (517) are correspondingly engaged with the fixing plate buckle (105).

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