Fire-fighting sand supervision equipment based on a fire-fighting system

Abstract

The application discloses a fire-fighting sand supervision equipment based on a fire-fighting system, which comprises a vehicle body, a cylinder fixedly connected to the upper end of the vehicle body, a sand outlet fixedly connected to the inner bottom of the cylinder, an inner pipe fixedly connected to the inside of the cylinder, a switch disc rotatably connected in the sand outlet, a feeding rod rotatably connected in the inner pipe, a driving wheel rotatably connected below the vehicle body, a pushing rod rotatably connected to the vehicle body, and a switch gear slidably connected in the pushing rod along the left-right direction.

Description

Technical Field

[0001] This invention belongs to the field of substation fire protection technology, specifically relating to a fire sand monitoring device based on a fire protection system. Background Technology

[0002] Chinese patent document CN112587835B discloses a fire-fighting sandbox, belonging to the field of substation fire protection technology. It includes a box body, a pusher plate, a sand guide chute, and a drive assembly. The box body has a sand outlet located near the top. The pusher plate is slidably connected to the box body. The sand guide chute is detachably connected to the box body and is used to guide the sand flowing from the sand outlet, covering the fire-fighting sand area. The drive assembly is located inside the box body and is used to drive the pusher plate to slide within the box body, allowing the fire-fighting sand inside the box to enter the sand guide chute. When a fire occurs in the substation next to the fire-fighting sandbox, the drive assembly drives the pusher plate to slide within the box body, thus pushing the fire-fighting sand inside the box body upwards, causing the fire-fighting sand to flow out from the sand outlet and into the sand guide chute. The sand guide chute guides the fire-fighting sand, allowing it to directly cover the fire-fighting area after flowing through the chute, eliminating the need for manual handling of the fire-fighting sand and improving rescue efficiency.

[0003] During the use of the aforementioned patent, when a disaster occurs in a substation, the transformer often experiences oil leakage. If the leaking oil is not stopped, it will cause the fire to spread further. Simply extinguishing the fire is unlikely to be effective in rescuing the fire. Therefore, it is necessary to promptly establish an isolation zone using fire-fighting sand.

[0004] Chinese patent document CN214485387U discloses a fire sand box for easy storage of sand, belonging to the field of substation fire protection technology. It includes a box body, a dehumidification pipe, a cover plate, and an opening and closing assembly. The box body has a feed inlet. The dehumidification pipe is located inside the box body, with one end connected to an air source. The cover plate is detachably connected to the box body to close the feed inlet. The cover plate has ventilation holes for allowing airflow to pass through the box body and remove moisture. Fire sand is placed into the box body through the feed inlet, and the cover plate is placed on the box body to close the feed inlet. After the fire sand becomes damp, a pressurized airflow is supplied to the dehumidification pipe through the air source. During the movement of the pressurized airflow within the fire sand, the fire sand inside the box tumbles, thus removing moisture from the fire sand. Furthermore, during the tumbling process, any hardened fire sand is broken up by collisions with other fire sand, reducing the amount of hardened fire sand.

[0005] During use, the gas can only carry away a limited amount of water vapor, and the caking problem can only be solved by turning the container over. In addition, the container is fixed as a whole, which reduces its flexibility. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a fire sand monitoring device based on a fire protection system, which is capable of uniformly laying isolation strips and drying fire sand when not in use, in order to address the shortcomings of the existing technology.

[0007] To achieve the objective of this invention, the following technical solution is adopted: a fire sand monitoring device based on a fire protection system, comprising a vehicle body, a cylinder fixedly connected to the upper part of the vehicle body, a sand outlet fixedly connected to the bottom of the cylinder, and an inner tube fixedly connected to the inside of the cylinder and located directly above the sand outlet; an opening and closing disc capable of closing the sand outlet is rotatably connected inside the sand outlet; a feed rod for transporting sand is rotatably connected inside the inner tube and inserted into the sand outlet; and a drive wheel capable of driving the feed rod to rotate forward is rotatably connected to the lower part of the vehicle body.

[0008] A push rod is rotatably connected to the vehicle body; a switching gear that rotates synchronously with the push rod is slidably connected inside the push rod in the left-right direction; the switching gear can drive the opening and closing disc to rotate; the switching gear can be unidirectionally connected to the feed rod.

[0009] When the switching gear is at its right limit position, the switching gear is connected to the opening and closing disc, which pushes the push rod to move the vehicle body. The opening and closing disc opens automatically, and the drive wheel drives the feed rod to rotate in the forward direction. The rotation speed of the feed rod changes synchronously with the rotation speed of the drive wheel, so that the isolation strip can be laid at any speed and the amount of sand in each part of the isolation strip is the same.

[0010] When the switching gear is at its left limit position, the switching gear is connected to the feed rod in a transmission manner. The reciprocating rotation of the push rod causes the feed rod to rotate in the opposite direction, and the sand at the bottom of the cylinder is transported to the top layer to facilitate drying of the sand and ensure that the sand meets the requirements when used.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is a fire sand monitoring device based on a fire protection system, which can automatically release the lock of the drive wheel when moving in any direction and drive the sand inside the cylinder to be sent downward without the need for additional manual unlocking steps. In addition, it can also turn the sand when it is not in use, so that the bottom layer of wet sand can be sent to the upper layer for drying, and at the same time, it can break up the clumps of sand during the turning process.

[0012] Furthermore: First, the handle in this invention can be positioned at different locations within the push rod, thereby changing the rotation amplitude of the push rod and the rotation direction of the feed rod, thus achieving function switching.

[0013] Specifically: When the handle is at its upper limit position, the push rod can rotate significantly. The rotation of the push rod causes the feed rod to rotate in the opposite direction, transporting the sand upwards. The sand at the bottom layer is sent to the top layer for drying. When the handle is in the middle position, the push rod cannot rotate. The movement of the push rod causes the entire vehicle body to move. When the handle is at its lower limit position, the push rod can rotate slightly. The rotation of the push rod causes the feed rod to rotate in the forward direction. At the same time, the sand outlet opens, and the sand is transported downwards to form a separation zone.

[0014] Secondly, the reversing frame in this invention has two reversing bevel gears. During the production of the isolation belt, the push rod rotates to the positive limit, which causes the first reversing bevel gear to rotate with the forward drive wheel, causing the feed rod to rotate in the positive direction. The push rod rotates to the reverse limit, which causes the second reversing bevel gear to rotate with the backward drive wheel, causing the feed rod to rotate in the positive direction. Thus, no matter whether the drive wheel moves forward or backward, the feed rod always maintains positive rotation, allowing the sand to be continuously transported downward.

[0015] Third, the rotating disk in this invention has a crushing rod that can break up clumps of sand and soil, and there are also openings inside that allow sand and soil to be transported downwards. The positions of each opening are different, so that sand and soil from all parts of the cylinder can fall and be sent to the upper layer. Specifically, the cylinder is divided into multiple cavities by partition plates, and the rotating disk has multiple openings corresponding to the position of one cavity. At the same time, a part of the cavity on a diameter cannot transport sand and soil downwards, while another part transports sand and soil downwards. After the rotating disk rotates, the two are exchanged. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a cross-sectional view of the sliding rod of the present invention when it is in the upper limit position.

[0019] Figure 4 This is a cross-sectional view of the sliding rod of the present invention when it is in the lower limit position.

[0020] Figure 5 This is a cross-sectional view of the sliding rod of the present invention when it is in the middle position.

[0021] Figure 6 This is a schematic diagram of the structure of the present invention when the push rod is pulled and rotated at a large extent.

[0022] Figure 7 This is a schematic diagram of the structure of the present invention when the push rod is pulled slightly to rotate.

[0023] Figure 8This is a cross-sectional structural diagram of the push rod, switching gear, synchronizing rod, and unlocking rod of the present invention.

[0024] Figure 9 This is an exploded structural diagram of the feed rod, rotating disk, and guide plate of the present invention.

[0025] Figure 10 This is a schematic diagram of the structure of the drive wheel, reversing frame, crushing shaft, transmission shaft, and feed drive gear of the present invention.

[0026] Figure 11 This is a cross-sectional structural schematic diagram of the sand spout and opening / closing disc of the present invention.

[0027] Figure 12 This is the system architecture diagram of the present invention.

[0028] 1. Body; 11. Cylinder; 111. Divider plate; 12. Inner tube; 13. Sand outlet nozzle; 131. Inner partition plate; 132. Partition plate opening; 14. Drive wheel; 141. Drive wheel axle; 142. Anti-rotation gear; 143. Synchronous shaft; 15. Driven wheel; 16. Switching plate; 161. Straight slide groove; 162. Arc groove; 21. Feed rod; 211. Driven sleeve; 212. Feed gear ring; 213. Synchronous ring; 214. Synchronous block 22. Rotary disc; 221. Crushing rod; 222. Through port; 223. Guide plate rotating hole; 224. Guide plate stop bar; 225. Synchronous groove; 23. Guide plate; 231. Guide plate rotating column; 232. Long plate; 233. Short plate; 3. Push rod; 31. Handle; 311. Shift slide column; 312. Switching rod; 32. Sliding rod; 321. Switching slide column; 33. Switching gear; 331. Switching gear rod; 332. Switching spring 333. Arc surface; 34. Adjusting slide rail; 341. First slide rail; 342. Second slide rail; 343. Third slide rail; 35. Switching slide rail; 41. Opening and closing plate; 411. Opening and closing gear ring; 412. Feed inlet; 42. Opening and closing gear; 51. Reversing frame; 511. Driven slide column; 512. Reversing bevel gear; 52. Drive sleeve; 521. Driven gear; 522. Drive slide rail; 53. Anti-rotation pin; 531. Driven plate; 532. 54. Pin spring; 55. First transmission gear; 56. Unlocking rod; 57. Unlocking ramp; 58. Unlocking slide; 59. Synchronizing rod; 50. Inclined slide groove; 61. Crushing shaft; 612. Synchronizing gear; 613. Crushing bevel gear; 62. Second transmission gear; 71. Transmission shaft; 714. Transmission bevel gear; 715. First input bevel gear; 716. Second input bevel gear; 72. Feed drive gear; 727. Feed bevel gear. Detailed Implementation

[0029] according to Figures 1 to 12As shown in the figure, a fire sand monitoring device based on a fire protection system according to this embodiment includes a vehicle body 1, a cylinder 11 fixedly connected to the upper end of the vehicle body 1, a sand outlet 13 fixedly connected to the bottom of the cylinder 11, and an inner tube 12 fixedly connected to the inside of the cylinder 11 and located directly above the sand outlet 13; the lower end opening of the inner tube 12 is located directly above the sand outlet 13; an opening and closing disc 41 capable of closing the sand outlet 13 is rotatably connected inside the sand outlet 13; a feed rod 21 for transporting sand is rotatably connected inside the inner tube 12 and inserted into the sand outlet 13; the feed rod 21 includes a rotating shaft and helical blades arranged spirally on the outer wall of the rotating shaft; two drive wheels 14 capable of driving the feed rod 21 to rotate forward are rotatably connected to the lower part of the vehicle body 1.

[0030] A push rod 3 is rotatably connected to the vehicle body 1; a switching gear 33 that rotates synchronously with the push rod 3 is slidably connected inside the push rod 3 in the left-right direction; the axis of the switching gear 33 is set to coincide with the axis of rotation of the push rod 3; the switching gear 33 can drive the opening and closing disc 41 to rotate; the switching gear 33 can be unidirectionally connected to the feed rod 21.

[0031] Two driven wheels 15 are also provided at the lower end of the vehicle body 1; the outer wall of the opening and closing disc 41 is formed with an opening and closing gear ring 411 arranged in the circumferential direction, and an opening and closing gear 42 is rotatably connected to the opening and closing gear ring 411 inside the vehicle body 1.

[0032] A bottom humidity sensor for detecting the moisture content of sand is fixedly connected to the bottom of the cylinder 11; a top humidity sensor for detecting the degree of drying of sand is fixedly connected to the top of the cylinder 11.

[0033] In substation scenarios, when fire-fighting sand is used to contain fires caused by transformer oil, the damp sand can conduct electricity, making the resulting isolation belts prone to becoming electrified. This can hinder personnel escape and potentially cause injury. Therefore, it is necessary to monitor the humidity of the fire-fighting sand and dry it in a timely manner to ensure its proper functioning during use.

[0034] When the switching gear 33 is at its right limit position, the switching gear 33 is connected to the opening and closing plate 41, which pushes the push rod 3 to move the vehicle body 1. The opening and closing plate 41 opens automatically, and the drive wheel 14 drives the feed rod 21 to rotate in the forward direction. The rotation speed of the feed rod 21 changes synchronously with the rotation speed of the drive wheel 14, so that the isolation strip can be laid at any speed and the amount of sand in each part of the isolation strip is the same.

[0035] When the switching gear 33 is at its left extreme position, the switching gear 33 is connected to the feed rod 21 in a transmission manner. The push rod 3 reciprocates, causing the feed rod 21 to rotate in the opposite direction. The sand at the bottom of the cylinder 11 is transported to the top layer to facilitate drying of the sand and ensure that the sand meets the requirements when used.

[0036] An inner partition 131 is fixedly connected inside the sand outlet 13, and the opening and closing disc 41 is rotatably connected to the lower end of the inner partition 131; the inner partition 131 has a vertically penetrating partition opening 132, and the opening and closing disc 41 has a vertically penetrating material inlet 412 that can communicate with the partition opening 132.

[0037] When the feed inlet 412 is not connected to the partition opening 132, the opening and closing disc 41 closes the sand outlet 13. The opening and closing disc 41 can connect the feed inlet 412 to the partition opening 132 by rotating forward or backward.

[0038] A drive wheel shaft 141 is fixedly connected between the two drive wheels 14, and an anti-rotation gear 142 is fixedly connected to the outer wall of the drive wheel shaft 141; an anti-rotation pin 53 is slidably connected in the vertical direction inside the vehicle body 1 to prevent the anti-rotation gear 142 on the drive wheel 14 from rotating.

[0039] A switching gear rod 331 is fixedly connected to the center of the left side of the switching gear 33. An arc surface 333 is formed on the end of the switching gear rod 331 away from the switching gear 33. The cross-section of the switching gear rod 331 is non-circular. A synchronization hole with the same cross-section as the switching gear rod 331 is formed on the push rod 3.

[0040] The push rod 3 is slidably connected in the up-down direction to a sliding rod 32 that can compress and push the arc surface 333; the body 1 is slidably connected in the front-back direction to an unlocking rod 55 that can push the anti-rotation pin 53 downward; the unlocking rod 55 can be pushed backward by the switching gear 33; the lower end of the sliding rod 32 can push the anti-rotation pin 53 downward.

[0041] A pin spring 532 for pushing the anti-rotation pin 53 upward is provided between the anti-rotation pin 53 and the vehicle body 1; a switching spring 332 for pushing the switching gear 33 to the left is provided between the switching gear 33 and the push rod 3.

[0042] When the sliding rod 32 is at its upper limit position, the sliding rod 32 does not contact the arc surface 333, the switching gear 33 is at its left limit position, the unlocking rod 55 is pushed to its rear limit position by the switching gear 33, the anti-rotation pin 53 is pushed to its lower limit position, the anti-rotation pin 53 prevents the drive wheel 14 from rotating, and the pin spring 532 contracts and stores force, so that the vehicle body 1 cannot move during the process of drying the sand.

[0043] When the sliding rod 32 is in the middle position, the sliding rod 32 abuts against the arc surface 333, the switching gear 33 is in the right limit position, the anti-rotation pin 53 moves to the upper limit position under the elastic force of the pin spring 532, the anti-rotation pin 53 does not prevent the rotation of the drive wheel 14, and the unlocking rod 55 is pushed to the front limit position by the anti-rotation pin 53, so that the vehicle body 1 can move to the position for making the isolation strip.

[0044] When the sliding rod 32 is at its lower limit position, the anti-rotation pin 53 is pushed to its lower limit position by the sliding rod 32, the pin spring 532 contracts and stores force, the anti-rotation pin 53 prevents the drive wheel 14 from rotating, and the switching gear 33 is at its right limit position, so that the vehicle body 1 cannot move when the isolation strip is not made.

[0045] The vehicle body 1 is rotatably connected to a drive shaft 71 that is connected to the feed rod 21. Two reversing bevel gears 512, located on both sides of the drive shaft 71, are slidably connected to the drive wheel 14.

[0046] A slidable reversing frame 51 for driving the reversing bevel gear 512 to slide is slidably connected to the lower part of the vehicle body 1 in the left-right direction; the anti-rotation pin 53 can slide synchronously with the slidable reversing frame 51; a drive sleeve 52 that can be driven and connected to the switching gear 33 is rotatably connected to the outer periphery of the right end of the slidable reversing frame 51 inside the vehicle body 1; the outer wall of the drive sleeve 52 is formed with a driven gear 521 that can be driven and connected to the switching gear 33.

[0047] The outer wall of the commutator 51 is fixedly connected to a driven slide column 511, and the inner wall of the drive sleeve 52 is formed with a spiral drive groove 522 that is slidably connected to the driven slide column 511.

[0048] The reversing bevel gear 512 has a non-circular cross-section synchronous through hole inside, and the drive wheel shaft 141 has a synchronous shaft 143 with the same cross-section as the synchronous through hole on its outer wall; the outer wall of the transmission shaft 71 is fixedly connected to a first input bevel gear 712 that is coaxially arranged and can be driven to one of the two reversing bevel gears 512; a first transmission gear 54 that is driven to the driven gear 521 is rotatably connected inside the vehicle body 1, and the first transmission gear 54 is driven to the opening and closing gear 42.

[0049] When the sliding rod 32 is at its lower limit position, and the push rod 3 rotates forward from the middle position to its limit position, the driven sliding column 511 is located at the left end of the drive slide groove 522, and the reversing bevel gear 512 on the right side is connected to the drive shaft 71. The push rod 3 continues to move, causing the vehicle body 1 to move forward, and the reversing bevel gear 512 on the right side rotates in the forward direction, causing the feed rod 21 to rotate in the forward direction.

[0050] When the sliding rod 32 is at its lower limit position, and the push rod 3 rotates backward from the middle position to its limit position, the driven sliding column 511 is located at the right end of the drive slide groove 522, and the reversing bevel gear 512 on the left side is connected to the drive shaft 71. The push rod 3 continues to move, causing the vehicle body 1 to move backward, and the reversing bevel gear 512 on the left side rotates in the opposite direction, causing the feed rod 21 to rotate in the forward direction.

[0051] When the push rod 3 is in the middle position, the driven slide 511 is in the middle position of the drive slide 522, the anti-rotation pin 53 prevents the anti-rotation gear 142 from rotating, and the vehicle body 1 cannot move.

[0052] A rotating disk 22 is rotatably connected to the outer periphery of the lower end of the inner tube 12. The upper end of the rotating disk 22 is formed with multiple crushing rods 221 for crushing clumps of sand. The rotating disk 22 is fixed relative to the feed rod 21. Multiple concentrically arranged annular partition plates 111 are fixedly connected inside the cylinder 11 above the rotating disk 22. Each partition plate 111 divides the interior of the cylinder 11 into multiple non-communicating cavities. The upper end of the rotating disk 22 and each cavity are respectively formed with through openings 222 for sand to pass through. The openings 222 in two adjacent cavities are staggered.

[0053] According to the standards for the use of fire-fighting sand, fire-fighting sand should not have obvious clumps when stored. Sand and soil, on the other hand, are prone to clumps when stored. In order to ensure that the sand and soil are intact when used, they need to be turned over frequently and the clumps need to be broken up.

[0054] When the feed rod 21 rotates, the rotating disk 22 rotates synchronously. During the rotation of the rotating disk 22, the area swept by the through-hole 222 covers each cavity. The layer of sand on the upper end of the rotating disk 22 passes through the corresponding through-hole 222, avoiding accumulation due to poor fluidity. At the same time, each of the crushing rods 221 crushes the clumps of sand, preventing the clumps of sand from affecting use.

[0055] The lower end of the rotating disk 22 is rotatably connected to a plurality of guide plates 23 arranged at equal intervals along the circumference; the rotation axis of the guide plate 23 is parallel to and does not coincide with the rotation axis of the rotating disk 22; the guide plate 23 includes a guide plate rotating column 231 rotatably connected to the rotating disk 22, a long plate 232 arranged radially fixedly connected to the outer wall of the guide plate rotating column 231, and a short plate 233 arranged along the same diameter direction as the long plate 232 and fixedly connected to the outer wall of the guide plate rotating column 231; the length of the long plate 232 is much greater than the length of the short plate 233, and the long plate 232 is close to the sand outlet 13; the lower end of the rotating disk 22 is provided with guide plate stops 224 formed on both sides of each guide plate 23 to limit the maximum rotation angle of the guide plate 23; the lower end of the rotating disk 22 is provided with a plurality of guide plate rotating holes 223 that are not coincident with the rotation axis and are rotatably connected to the corresponding guide plate rotating column 231.

[0056] During the rotation of the rotating disk 22, the resistance experienced by the long plate 232 is much greater than that experienced by the short plate 233. The long plate 232 drives the guide plate 23 to rotate until it abuts against the corresponding guide plate stop 224. The rotating disk 22 continues to rotate, and the sand below the rotating disk 22 abuts against the guide plate 23 and slides along the guide plate 23 into the sand outlet 13.

[0057] A handle 31 is slidably connected to the outer wall of the push rod 3 in the vertical direction, and a shift slide column 311 is fixedly connected inside the handle 31. An adjustment groove 34 is formed on the push rod 3 in the vertical direction and can be slidably connected to the shift slide column 311. The upper end of the adjustment groove 34 is formed with a first groove 341 in the horizontal direction and can be slidably connected to the shift slide column 311. The middle part of the adjustment groove 34 is formed with a second groove 342 in the horizontal direction and can be slidably connected to the shift slide column 311. The lower end of the adjustment groove 34 is formed with a third groove 343 in the horizontal direction and can be slidably connected to the shift slide column 311. A switching rod 312 in the vertical direction and which is circumferentially and axially fixed relative to the sliding rod 32 is fixedly connected to the end of the shift slide column 311 away from the handle 31.

[0058] When the shifting rod 311 is located within the first groove 341, the sliding rod 32 is located at the upper limit position.

[0059] When the shift rod 311 is located in the second slide groove 342, the sliding rod 32 is in the middle position.

[0060] When the shift slide column 311 is located in the third slide groove 343, the sliding rod 32 is located at the lower limit position.

[0061] The outer wall of the sliding rod 32 is formed with a switching slide column 321; the upper end of the vehicle body 1 is fixedly connected with a switching plate 16, and the switching plate 16 is formed with a straight slide groove 161 that is arranged in the vertical direction and can be slidably connected with the switching slide column 321. The lower end of the straight slide groove 161 is formed with an arc-shaped groove 162 that can be slidably connected with the switching slide column 321; the center of the arc-shaped groove 162 is coincident with the rotation axis of the push rod 3; the outer wall of the push rod 3 is formed with a switching slide groove 35 that is arranged in the vertical direction and slidably connected with the switching slide column 321.

[0062] When the shifting slide column 311 is located in the first slide groove 341, the switching slide column 321 is located on the outer periphery of the switching plate 16, and the rotation angle of the push rod 3 is not restricted.

[0063] When the shifting slide column 311 is located in the second slide groove 342, the switching slide column 321 is located in the straight slide groove 161, and the push rod 3 cannot rotate.

[0064] When the shifting rod 311 is located in the third sliding groove 343, the switching rod 321 is located in the arc groove 162. The rotation angle of the push rod 3 is limited by the length of the arc groove 162. When the push rod 3 is pushed to the limit position, it drives the vehicle body 1 to move in the corresponding direction.

[0065] The crushing shaft 61, which can drive the feed rod 21 to rotate in the opposite direction, is rotatably connected inside the vehicle body 1; the crushing shaft 61 is connected to the transmission shaft 71, and the outer circumference of the crushing shaft 61 is rotatably connected to the synchronous gear 611, which can be connected to the switching gear 33; a ratchet and pawl mechanism is provided between the crushing shaft 61 and the synchronous gear 611.

[0066] A driven sleeve 211 is fixedly connected to the outer periphery of the feed rod 21, and a feed gear ring 212 arranged circumferentially is formed on the outer wall of the driven sleeve 211; a feed drive gear 72 is rotatably connected inside the vehicle body 1 and is driven by the feed gear ring 212; a feed bevel gear 721 is fixedly connected to the lower center of the feed drive gear 72, and a transmission bevel gear 711 that is driven by the feed bevel gear 721 is fixedly connected to one end of the transmission shaft 71 near the feed rod 21.

[0067] A second input bevel gear 713 is fixedly connected to the outer wall of the drive shaft 71, and a crushing bevel gear 612 that is driven by the second input bevel gear 713 is fixedly connected to one end of the crushing shaft 61 near the drive shaft 71; a second transmission gear 62 that is driven by the synchronous gear 611 is rotatably connected inside the vehicle body 1, and the second transmission gear 62 can be driven by the switching gear 33.

[0068] The upper end of the anti-rotation pin 53 is fixedly connected to a driven plate 531. The end of the unlocking rod 55 near the anti-rotation pin 53 is formed with an inclined unlocking slope 551 that can push the driven plate 531 downward. The unlocking rod 55 is fixedly connected to an unlocking slide post 552. The body 1 is slidably connected to a synchronizing rod 56 that can be pushed to the left by the switching gear 33. The synchronizing rod 56 is formed with an inclined sliding groove 561 that is slidably connected to the unlocking slide post 552.

[0069] The inner wall of the rotating disk 22 is formed with a plurality of circumferentially spaced synchronous grooves 225. The outer periphery of the feed rod 21 is fixedly connected with a synchronous ring 213. A plurality of synchronous blocks 214 are formed on the synchronous ring 213 and engage with the corresponding synchronous grooves 225.

[0070] A controller is fixedly connected inside the vehicle body 1, and the bottom humidity sensor and the top humidity sensor are electrically connected to the controller.

[0071] In the initial state, the shift slide 311 is located in the second slide groove 342, the shift gear 33 is located at the right limit position, the anti-rotation pin 53 is located at the upper limit position, and the driven slide 511 is located in the middle position of the drive slide groove 522.

[0072] When a disaster occurs in a substation, transformers often leak oil. If the leaking oil is not stopped, it will cause the fire to spread further. Therefore, it is necessary to establish an isolation zone with fire sand in a timely manner. However, the traditional method of establishing the isolation zone relies entirely on manual carrying of sand buckets, which is not only inefficient but also easily leads to uneven distribution of fire sand in different parts of the isolation zone, resulting in poor isolation effect. Therefore, a device is needed to quickly establish a uniform isolation zone.

[0073] When using this invention, push the push rod 3 forward. At this time, the switching slide column 321 is located in the straight slide groove 161, and the push rod 3 cannot rotate. Pushing the push rod 3 at this time causes the vehicle body 1 to move forward synchronously.

[0074] When the vehicle body 1 moves to the position where a barrier needs to be established, the handle 31 is rotated in the reverse direction, causing the shift slide column 311 to move from the second slide groove 342 to the adjustment slide groove 34. At this time, the handle 31 can move in the vertical direction. Then, the handle 31 is moved downward, and the movement of the handle 31 drives the shift lever 312 to move, causing the sliding lever 32 to move downward in sync. When the handle 31 moves to the lower limit position, the handle 31 is rotated in the forward direction, causing the shift slide column 311 to move from the adjustment slide groove 34 to the third slide groove 343. At this time, the handle 31 cannot move in the vertical direction, and the shift slide column 321 on the sliding lever 32 moves into the arc groove 162. At the same time, the lower end of the sliding lever 32 abuts against the driven plate 531 and drives the anti-rotation pin 53 to move to the lower limit position. The pin spring 532 contracts and stores force. At this time, the anti-rotation pin 53 engages with the anti-rotation gear 142, so that the drive wheel 14 cannot rotate.

[0075] Next, the push rod 3 is moved in the direction where the isolation zone is to be established. The rotation of the push rod 3 drives the switching gear 33 to rotate. The rotation of the switching gear 33 drives the driven gear 521 to rotate, causing the drive sleeve 52 to rotate. The rotation of the drive sleeve 52 drives the drive slide groove 522 to rotate, causing the driven slide column 511 to move within the drive slide groove 522. The movement of the driven slide column 511 drives the reversing frame 51 to move. The anti-rotation pin 53 on the reversing frame 51 moves synchronously. When the push rod 3 rotates to the limit position, the switching slide column 321 moves to one end of the arc groove 162, and the driven slide column 511 moves to one end of the drive slide groove 522, causing the reversing frame 51 to move to one side limit position. The anti-rotation pin 53 is not engaged with the anti-rotation gear 142. At this time, a reversing bevel gear 512 meshes with the first input bevel gear 712. The push rod 3 is moved further, causing the vehicle body 1 to move. The drive wheel 14 rotates, driving the first input bevel gear 712 to rotate through the reversing bevel gear 512.

[0076] When the push rod 3 rotates forward, the right reversing bevel gear 512 meshes with the first input bevel gear 712, the vehicle body 1 moves forward, and the drive wheel 14 rotates in the forward direction, driving the first input bevel gear 712 to rotate in the forward direction through the reversing bevel gear 512; when the push rod 3 rotates backward, the left reversing bevel gear 512 meshes with the first input bevel gear 712, the vehicle body 1 moves backward, and the drive wheel 14 rotates in the reverse direction, driving the first input bevel gear 712 to rotate in the forward direction through the reversing bevel gear 512; thus, regardless of whether the push rod 3 is pushed or pulled, the first input bevel gear 712 maintains forward rotation.

[0077] The forward rotation of the first input bevel gear 712 drives the transmission shaft 71 to rotate, causing the transmission bevel gear 711 to rotate. The rotation of the transmission bevel gear 711 drives the feed bevel gear 721 to rotate, causing the feed drive gear 72 to rotate in the forward direction. The rotation of the feed drive gear 72 drives the feed gear ring 212 to rotate, causing the driven sleeve 211 to rotate, which in turn causes the feed rod 21 to rotate in the forward direction. The rotation of the feed rod 21 causes the spiral blades to transport sand towards the sand outlet 13.

[0078] At the same time, the rotation of the driven gear 521 drives the first transmission gear 54 to rotate, and the rotation of the first transmission gear 54 drives the opening and closing gear 42 to rotate, causing the opening and closing gear ring 411 to rotate. The rotation of the opening and closing gear ring 411 drives the opening and closing disc 41 to rotate. When the drive sleeve 52 rotates to its limit, the opening and closing disc 41 rotates until the feed port 412 connects with the partition opening 132. The sand transported by the feed rod 21 is sent out through the sand outlet 13 and accumulates on the ground. As the vehicle body 1 moves, the accumulated sand forms an isolation zone.

[0079] When the push rod 3 rotates forward, the opening and closing plate 41 rotates clockwise, connecting the feed inlet 412 with the partition opening 132; when the push rod 3 rotates backward, the opening and closing plate 41 rotates counterclockwise, connecting the feed inlet 412 with the partition opening 132; thus, regardless of whether the push rod 3 is pushed or pulled, the opening and closing plate 41 can connect the feed inlet 412 with the partition opening 132 whether it rotates clockwise or counterclockwise.

[0080] Meanwhile, since the rotation of the feed rod 21 is driven by the drive wheel 14, the rotation speed of the drive wheel 14 determines the rotation speed of the feed rod 21, which in turn determines the speed at which the sand outlet 13 delivers sand. This ensures that no matter how fast the vehicle body 1 moves, the sand outlet 13 delivers sand to form a uniform isolation strip, which not only meets the usage requirements but also reduces waste and effectively increases the laying length of the isolation strip.

[0081] After the isolation zone is established, move the push rod 3 to the vertical position, rotate the opening and closing plate 41 to close the sand outlet, and then rotate the handle 31 in the opposite direction to move the shift slide 311 from the third slide groove 343 to the adjusting slide groove 34. Then move the handle 31 upward to move the switching slide 321 from the arc groove 162 to the straight slide groove 161. At this time, the lower end of the sliding rod 32 no longer abuts against the driven plate 531, and the anti-rotation pin 53 moves upward to the upper limit position under the elastic force of the pin spring 532. When the handle 31 is moved to the middle position, rotate the handle 31 in the forward direction to move the shift slide 311 into the second slide groove 342, at which time the vehicle body 1 can be pushed away.

[0082] Because there are many electrical devices in a substation, electrical wires or equipment may leak electricity in the event of a disaster. If the fire sand used to make the isolation belt contains moisture, the damp sand will conduct electricity and make the isolation belt electrified, which will seriously affect the safety of the escaping personnel. Therefore, it is necessary to dry the damp sand in time.

[0083] When the bottom humidity sensor at the bottom of the cylinder 11 detects that the sand has a certain level of moisture, the bottom humidity sensor sends a signal to the controller. The controller then transmits the signal upward to the intermediate information transmission system, and then the signal is transmitted upward to the terminal information processing system. After being processed by the terminal information processing system, the intermediate signal transmission system issues an instruction to the personnel to artificially dry the fire sand.

[0084] During drying, first rotate handle 31 in the opposite direction to move shift slide 311 into adjustment slide groove 34, then move handle 31 upward to move sliding rod 32 upward synchronously; when handle 31 moves to the upper limit position, shift slide 321 on sliding rod 32 moves out of straight slide groove 161, at which point the rotation of push rod 3 is no longer restricted; at the same time, sliding rod 32 no longer abuts against shift gear rod 331, shift gear 33 moves to the left under the elastic force of shift spring 332, the movement of shift gear 33 drives synchronous rod 56 to move, causing inclined slide groove 561 to move, the movement of inclined slide groove 561 drives unlocking slide 552 to move, causing unlocking rod 55 to move, the movement of unlocking rod 55 drives unlocking inclined surface 551 to move and push driven plate 531 downward; when shift gear 33 moves to the left limit position, anti-rotation pin 53 moves to the lower limit position and engages with anti-rotation gear 142, drive wheel 14 cannot rotate, shift gear 33 meshes with second transmission gear 62.

[0085] Next, the push rod 3 is pulled back. The rotation of the push rod 3 drives the switching gear 33 to rotate, which in turn drives the second transmission gear 62 to rotate. The rotation of the second transmission gear 62 drives the synchronous gear 611 to rotate. The rotation of the synchronous gear 611 drives the crushing shaft 61 to rotate through the ratchet and pawl mechanism. The rotation of the crushing shaft 61 drives the crushing bevel gear 612 to rotate, which in turn drives the second input bevel gear 713 to rotate. The rotation of the second input bevel gear 713 drives the transmission shaft 71 to rotate, which causes the feed rod 21 to rotate in the opposite direction. The rotation of the feed rod 21 causes the sand at the bottom of the cylinder 11 to be transported upward to the top layer, which facilitates the drying of the damp sand at the bottom.

[0086] Meanwhile, prolonged accumulation of fire-fighting sand can cause it to clump together, affecting its efficiency during use. Therefore, it is necessary to break up the clumps of sand.

[0087] The rotation of the feed rod 21 drives the synchronous block 214 to rotate, and the rotation of the synchronous block 214 drives the synchronous groove 225 to rotate, causing the rotating disk 22 to rotate. During the rotation of the rotating disk 22, because the partition plate 111 inside the cylinder 11 divides the cylinder 11 into multiple cavities, the openings 222 in two adjacent cavities are staggered, so that the two adjacent cavities are in the same radius. When sand falls into one cavity, sand does not fall into the other cavity. After the rotating disk 22 rotates a certain angle, the original downward sand falling... The sand-falling chamber no longer receives sand, while the chamber that was not receiving sand before begins to receive sand downwards. This ensures that when the rotating disk 22 rotates once, sand can fall downwards from all parts above the rotating disk 22, preventing poor flow and accumulation due to distance from the sand-falling opening. At the same time, the crushing rod 221 on the rotating disk 22 rotates synchronously with the rotating disk 22. When the crushing rod 221 comes into contact with the clumps of sand, the movement of the crushing rod 221 breaks up the clumps of sand, and then the sand falls into the lower part of the rotating disk 22 through the various openings 222.

[0088] During the rotation of the rotating disk 22, the guide plates 23 at the lower end rotate synchronously around the rotating shaft of the rotating disk 22. During the rotation of the guide plate 23 around the rotating shaft of the rotating disk 22, one side of the guide plate 23 in the direction of rotation abuts against the sand below the rotating disk 22 and drives the sand to move. When the sand is driven to move, it also generates a force that resists the guide plate 23. Since the length of the long plate 232 on the guide plate 23 is much greater than the length of the short plate 233, the long plate 232 drives the guide plate 23 to rotate until it abuts against the corresponding guide plate stop 224. At this time, the guide plate 23 is tilted, and the sand abutting against the guide plate 23 can move along the guide plate 23 towards the lower opening of the inner tube 12 in the center.

[0089] When the push rod 3 is pulled to its limit, push the push rod 3 forward to reset it. The switching gear 33 drives the second transmission gear 62 to rotate, causing the synchronous gear 611 to rotate. However, at this time, the ratchet and pawl mechanism does not work, and the rotation of the synchronous gear 611 does not drive the crushing shaft 61 to rotate.

[0090] After the top layer of sand has been dried for a certain period of time, the humidity sensor at the top of the cylinder 11 detects that the top layer of sand has dried to a certain extent and sends a signal to the controller. The controller then transmits the signal upward to the intermediate information transmission system, and then the signal is transmitted upward to the terminal information processing system. After being processed by the terminal information processing system, the intermediate signal transmission system issues an instruction to the personnel to manually dry the next batch of fire sand.

[0091] Repeat the above operation multiple times so that all the damp sand at the bottom of the cylinder 11 is transported to the top layer for drying. After drying, move the push rod 3 to the vertical position, and then turn the handle 31 in the opposite direction so that the shift slide column 311 moves from the third slide groove 343 to the adjustment slide groove 34. Then move the handle 31 to the middle position and turn the handle 31 in the forward direction to restore the initial state.

Claims

1. A fire sand monitoring device based on a fire protection system, characterized in that: The device includes a vehicle body, a cylinder fixedly connected to the upper part of the vehicle body, a sand outlet fixedly connected to the bottom of the cylinder, and an inner tube fixedly connected to the inside of the cylinder and located directly above the sand outlet. An opening / closing disc capable of closing the sand outlet is rotatably connected inside the sand outlet. A feed rod for transporting sand is rotatably connected inside the inner tube and inserted into the sand outlet. A drive wheel capable of driving the feed rod to rotate forward is rotatably connected to the lower part of the vehicle body. A push rod is rotatably connected to the vehicle body; a switching gear that rotates synchronously with the push rod is slidably connected inside the push rod in the left-right direction; the switching gear can drive the opening and closing disc to rotate; the switching gear can be unidirectionally connected to the feed rod. When the switching gear is at its right limit position, the switching gear is connected to the opening and closing plate, which pushes the push rod to move the vehicle body. The opening and closing plate opens automatically, and the drive wheel drives the feed rod to rotate in the forward direction. The rotation speed of the feed rod changes synchronously with the rotation speed of the drive wheel, so that the isolation strip can be laid at any speed and the amount of sand in each part of the isolation strip is the same. When the switching gear is at the left limit position, the switching gear is connected to the feed rod in a transmission. The push rod reciprocates, causing the feed rod to rotate in the opposite direction. The sand at the bottom of the cylinder is transported to the top layer to facilitate drying of the sand and ensure that the sand meets the requirements when used. An anti-rotation pin that prevents the drive wheel from rotating is slidably connected in the vertical direction inside the vehicle body; the left end of the switching gear is formed with an arc surface; a sliding rod that can press and push the arc surface is slidably connected in the vertical direction inside the push rod; an unlocking rod that can push the anti-rotation pin downward is slidably connected in the front-rear direction inside the vehicle body; the unlocking rod can be pushed backward by the switching gear; the lower end of the sliding rod can push the anti-rotation pin downward. The vehicle body is rotatably connected to a drive shaft that is connected to the feed rod, and the drive wheel is slidably connected to two reversing bevel gears located on both sides of the drive shaft. A reversing frame for driving the reversing bevel gear to slide is slidably connected to the underside of the vehicle body in the left-right direction; the anti-rotation pin can slide synchronously with the reversing frame; a drive sleeve that can be driven and connected to the switching gear is rotatably connected to the outer periphery of the right end of the reversing frame inside the vehicle body. The outer wall of the commutator is fixedly connected to a driven slide column, and the inner wall of the drive sleeve is formed with a spiral drive groove that is slidably connected to the driven slide column.

2. A fire sand monitoring device based on a fire protection system as described in claim 1, characterized in that: A rotating disk is rotatably connected to the outer periphery of the lower end of the inner tube. Multiple crushing rods for crushing clumps of sand are formed on the upper end of the rotating disk. The rotating disk is fixed relative to the feed rod. Multiple concentrically arranged annular partition plates are fixedly connected inside the cylinder above the rotating disk. Each partition plate divides the inner cylinder into multiple non-communicating cavities. A through-hole for sand to pass through is formed at the upper end of the rotating disk and at the corresponding location of each cavity. The through-holes in adjacent cavities are staggered.

3. A fire sand monitoring device based on a fire protection system as described in claim 2, characterized in that: A guide plate is rotatably connected to the lower end of the rotating disk; the rotation axis of the guide plate is parallel to and does not coincide with the rotation axis of the rotating disk; the guide plate includes a guide plate column rotatably connected to the rotating disk, a long plate fixedly connected to the outer wall of the guide plate column along a radial direction, and a short plate fixedly connected to the outer wall of the guide plate column along the same diameter direction as the long plate; the length of the long plate is greater than the length of the short plate, and the long plate is close to the sand outlet; the lower end of the rotating disk is provided with guide plate stops on both sides of the guide plate to limit the maximum rotation angle of the guide plate.

4. A fire sand monitoring device based on a fire protection system as described in claim 2, characterized in that: A handle is slidably connected to the outer wall of the push rod in the vertical direction, and a shift slide column is fixedly connected inside the handle. An adjustment groove is formed on the push rod in the vertical direction and can be slidably connected to the shift slide column. The upper end of the adjustment groove is formed with a first groove in the horizontal direction that can be slidably connected to the shift slide column. The middle part of the adjustment groove is formed with a second groove in the horizontal direction that can be slidably connected to the shift slide column. The lower end of the adjustment groove is formed with a third groove in the horizontal direction that can be slidably connected to the shift slide column. A switching rod is fixedly connected to the end of the shift slide column away from the handle in the vertical direction and can be relatively fixed relative to the axis of rotation and axial direction of the sliding rod.

5. A fire sand monitoring device based on a fire protection system as described in claim 4, characterized in that: The outer wall of the sliding rod is formed with a switching slide column; a switching plate is fixedly connected to the upper end of the vehicle body, and a straight slide groove is formed on the switching plate that can slide and connect with the switching slide column in the vertical direction. The lower end of the straight slide groove is formed with an arc-shaped groove that can slide and connect with the switching slide column; the center of the arc-shaped groove is coincident with the rotation axis of the push rod.

6. A fire sand monitoring device based on a fire protection system as described in claim 1, characterized in that: The vehicle body is rotatably connected to a crushing shaft that can drive the feed rod to rotate in the opposite direction; the crushing shaft is rotatably connected to the transmission shaft, and the outer circumference of the crushing shaft is rotatably connected to a synchronous gear that can be rotatably connected to the switching gear; a ratchet and pawl mechanism is provided between the crushing shaft and the synchronous gear.

7. A fire sand monitoring device based on a fire protection system as described in claim 1, characterized in that: The upper end of the anti-rotation pin is fixedly connected to a driven plate, and the end of the unlocking rod near the anti-rotation pin is formed with an inclined unlocking slope that can push the driven plate downward; an unlocking slide post is fixedly connected to the unlocking rod; a synchronizing rod that can be pushed to the left by the switching gear is slidably connected inside the vehicle body, and an inclined sliding groove that is slidably connected to the unlocking slide post is formed on the synchronizing rod.

8. A fire sand monitoring device based on a fire protection system as described in claim 2, characterized in that: The inner wall of the rotating disk is formed with a plurality of circumferentially spaced synchronous grooves, and a synchronous ring is fixedly connected to the outer periphery of the feed rod. A plurality of synchronous blocks are formed on the synchronous ring and engage with the corresponding synchronous grooves.

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