Energy-saving centrifugal pump for disaster relief

Abstract

The present application relates to the technical field of emergency rescue pump, in particular to a kind of energy-saving centrifugal pump for disaster relief, including trailer, shipping structure, height adjusting structure, unfolding structure, fixed structure, centrifugal pump, pump shaft, driving structure, filter structure and diesel engine.The shipping structure is set to facilitate the length and angle of trailer hook adjustment, so as to facilitate the adaptation of different types and height of tractor, strong flexibility, the setting of unfolding structure facilitates the angle and height of support leg adjustment, so as to facilitate the adaptation of different complex bottom, improve the overall stability, the setting of fixed structure facilitates the height of support leg adjustment, while it can be pierced into the ground, improve the firmness, avoid the equipment to be turned over, the setting of filter structure can effectively filter out the sand mixed in water and other smaller particle impurities, prolong the service life of impeller.

Description

Technical Field

[0001] This invention relates to the field of emergency pump technology, specifically an energy-saving centrifugal pump for disaster relief. Background Technology

[0002] Flood control and emergency pumps are specialized pumps used for flood control and disaster relief. They typically have a large flow rate and head, enabling them to quickly pump large amounts of water from reservoirs, rivers, lakes, and other areas to reduce flood damage. Therefore, in the event of a flood or other emergency, the emergency pumps are mainly composed of centrifugal pumps, diesel engines, flatbed trucks, and other equipment. By towing them to the disaster site, the flood control and emergency pumps can be quickly deployed and operated, helping to control floodwaters within manageable limits and protect lives and property.

[0003] Traditional emergency pumps typically have a filter screen at the end of the suction pipe to prevent debris, fibers, and other impurities from being sucked into the centrifugal pump and causing blockages. However, water often contains sand or other small particles that can pass through the filter screen and be drawn into the pump body with the water flow. Since the impeller rotates at high speed, these small particles can accelerate impeller wear, causing wear marks, chips, or even cracks on the impeller surface, thus affecting the impeller's performance and service life.

[0004] When transporting the emergency pump to the disaster site, the tractor is usually connected to the tractor hook at the end of the emergency pump. However, the tractor hook is usually directly fixed to the bottom of the flatbed truck with bolts, which makes it inconvenient to connect with different types and heights of tractors, resulting in poor flexibility. Furthermore, when the emergency pump truck turns while following the tractor, the turning radius increases due to the fixed trailer, resulting in poor flexibility.

[0005] When in use, emergency pumps are usually towed to disaster sites by tractor-trailers. Due to the complex and uneven terrain of the disaster-stricken ground, and the need to maintain overall levelness during operation, a support leg is usually bolted to the front and rear of the vehicle. However, because the contact area between the support leg and the ground is small, the overall center of gravity is high and the stability is poor. At the same time, the diesel engine will generate a lot of vibration when running. If the ground under the support leg is soft or uneven, the flatbed truck is prone to tilting or overturning because the support leg is in a constant position. Summary of the Invention

[0006] To address the problems in the existing technology, the present invention provides an energy-saving centrifugal pump for disaster relief.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: an energy-saving centrifugal pump for disaster relief, including a trailer, a consignment structure installed at one end of the trailer, a height-adjusting structure provided at the other end of the trailer, an unfolding structure fitted on the height-adjusting structure, a fixing structure installed on the unfolding structure, a centrifugal pump installed on the trailer, a pump shaft rotatably connected inside the centrifugal pump, a driving structure connected to the centrifugal pump, and a filtering structure provided on the centrifugal pump;

[0008] The filtering structure includes a docking sleeve and a centrifugal barrel rotatably connected inside the docking sleeve. A docking sleeve is fixedly connected to the suction port of the centrifugal pump. The end of the pump shaft is engaged with the centrifugal barrel. Static rings are fixedly connected to both ends of the centrifugal barrel. A dynamic ring is engaged at a position on the inner wall of the docking sleeve close to the static ring. The sealing ring of the dynamic ring abuts against the sealing ring of the static ring. Blades are fixedly connected inside the centrifugal barrel. Multiple through grooves are formed in the side wall of the centrifugal barrel. A storage box is fixedly connected to the bottom of the docking sleeve. A rubber cover is fixedly connected to the bottom surface of the storage box.

[0009] Specifically, a hole is formed in the bottom surface of the centrifugal barrel, and the internal space of the storage box is interconnected with the through grooves.

[0010] Specifically, the height-adjusting structure includes two bearing plates and guide rods fixedly connected to the ends of the bearing plates. A bearing plate is fixedly connected to one end of the trailer close to the centrifugal pump. A sliding frame is slidably connected between the two guide rods. A mounting plate is fixedly connected to the trailer at a position close to the bearing plate. A motor is fixedly connected to the mounting plate. The output shaft of the motor is rotatably connected to the mounting plate. A screw rod is fixedly connected to the output shaft of the motor. The screw rod is threadedly connected to the top of the sliding frame. A sliding rod is fixedly connected to the bottom of the screw rod. The sliding rod penetrates through the sliding frame.

[0011] Specifically, the top end portion of the sliding frame is in a "mouth" - shaped structure, and the unfolding structure is fitted at the bottom of the sliding frame.

[0012] Specifically, the unfolding structure includes two second rotating shafts and a first gear fixedly connected to the top of the second rotating shafts. The bottom of the carriage is rotatably connected to two second rotating shafts, and a swing arm is fixedly connected to the bottom of the second rotating shafts. A second gear meshes between the two first gears. A fixing bar is fixedly connected to the top surface of the second gear. The two ends of the fixing bar are fixedly connected to the two second rotating shafts respectively. An inner ratchet is fixedly connected to the inner side of the second gear. The slide rod passes through the fixing bar and the inner ratchet respectively. A drive block is provided inside the second gear. The bottom surface of the drive block abuts against the carriage. The drive block and the slide rod are slidably connected. A pawl is rotatably connected to the top surface of the drive block. The pawl meshes with the inner ratchet. The top surface of the pawl abuts against the fixing bar. A spring is fixedly connected to the top surface of the drive block. The spring abuts against the pawl.

[0013] Specifically, each of the two load-bearing plates is slidably connected to a guide post, and a pressure plate is fixedly connected between the two guide posts. The pressure plate is fixedly connected to the slide, and the bottom surface of the pressure plate abuts against the swing arm. A fixing structure is fitted on the swing arm.

[0014] Specifically, the fixing structure includes a telescopic plate and a protective sleeve fixedly connected to the end of the telescopic plate. The telescopic plates are slidably connected inside both swing arms. The side wall of the telescopic plate is locked to the swing arm by a second bolt. A pointed rod is slidably connected inside the protective sleeve. The pointed rod has multiple through holes. A pin is engaged at the end of the telescopic plate. The pin is slidably connected to the inner wall of the protective sleeve. The end of the pin is engaged in one of the through holes.

[0015] Specifically, the protective sleeve has a "T" shaped structure, and a spring is fixedly connected between the top surface of the protective sleeve and the end of the pointed rod.

[0016] Specifically, the transport structure includes a mounting sleeve and a telescopic rod slidably connected inside the mounting sleeve. The mounting sleeve is fixedly connected to the bottom surface of the trailer. The telescopic rod and the mounting sleeve are locked together by a first bolt. A first rotating shaft is rotatably connected to the end of the telescopic rod. A torsion spring is fixedly connected between the end of the first rotating shaft and the top surface of the telescopic rod. A connecting member is fixedly connected to the first rotating shaft. Two rotating members are rotatably connected to the connecting member. A docking member is rotatably connected between the two rotating members.

[0017] Specifically, a diesel engine is fixedly connected to the trailer, and a drive structure is fitted to the diesel engine. The drive structure includes a first pulley and a belt wound around the first pulley. The end of the pump shaft is fixedly connected to the first pulley, and a second pulley is fixedly connected to the output shaft of the diesel engine. A belt is wound between the first pulley and the second pulley.

[0018] The beneficial effects of this invention are:

[0019] (1) The energy-saving centrifugal pump for disaster relief described in this invention has a transport structure installed on the trailer. The transport structure is designed to facilitate the adjustment of the length and angle of the trailer hook, thereby making it easy to adapt to different types and heights of tractors and providing high flexibility.

[0020] (2) The energy-saving centrifugal pump for disaster relief described in this invention has a height adjustment structure installed on the trailer. The height adjustment structure is used in conjunction with the unfolding structure. The unfolding structure is designed to facilitate the adjustment of the angle and height of the support legs, thereby making it easier to adapt to different complex bottom surfaces and improving the overall stability.

[0021] (3) The energy-saving centrifugal pump for disaster relief described in this invention has a fixed structure connected to its unfolded structure. The fixed structure facilitates the adjustment of the height of the support legs and can penetrate the ground, thereby improving its stability and preventing the equipment from tipping over.

[0022] (4) The energy-saving centrifugal pump for disaster relief described in this invention is equipped with a filter structure. The filter structure can effectively filter out small particulate impurities such as sand mixed in the water, thus extending the service life of the impeller. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of an energy-saving centrifugal pump for disaster relief provided by the present invention;

[0025] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0026] Figure 3 This is a schematic diagram of the connection structure between the trailer and the mounting sleeve of the present invention;

[0027] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0028] Figure 5 This is a schematic diagram of the connection structure between the height adjustment structure and the unfolding structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection structure between the carriage and the pressure plate of the present invention;

[0030] Figure 7 This is a schematic diagram of the connection structure between the protective sleeve and the pointed rod of the present invention;

[0031] Figure 8 for Figure 7 The diagram shows an enlarged view of section C.

[0032] Figure 9 This is a schematic diagram of the connection structure between the lead screw and the carriage of the present invention;

[0033] Figure 10 This is a schematic diagram of the connection structure between the first pulley and the belt of the present invention;

[0034] Figure 11 for Figure 10 The diagram shown is an enlarged view of the structure of part D.

[0035] Figure 12 for Figure 11 The diagram shown is an enlarged view of the structure of part E.

[0036] Figure 13 This is a schematic diagram of the connection structure between the centrifuge tank and the blades of the present invention.

[0037] In the diagram: 1. Trailer; 2. Transport structure; 201. Mounting sleeve; 202. Telescopic rod; 203. First bolt; 204. First pivot; 205. Torsion spring; 206. Connector; 207. Rotating component; 208. Connecting component; 3. Height adjustment structure; 301. Load-bearing plate; 302. Guide rod; 303. Slide; 304. Mounting plate; 305. Motor; 306. Lead screw; 307. Slide rod; 4. Deployment structure; 401. Second pivot; 402. First gear; 403. Swing arm; 404. Second gear; 405. Fixing bar; 406. Inner ratchet; 407. Pawl; 408 409. Spring; 410. Guide post; 411. Pressure plate; 412. Drive block; 5. Fixing structure; 501. Telescopic plate; 502. Protective sleeve; 503. Second bolt; 504. Pointed rod; 505. Spring; 506. Through hole; 507. Pin; 6. Centrifugal pump; 7. Pump shaft; 8. Drive structure; 801. First pulley; 802. Belt; 803. Second pulley; 9. Filter structure; 901. Connecting sleeve; 902. Centrifuge tank; 903. Blade; 904. Through groove; 905. Storage box; 906. Rubber cover; 907. Dynamic ring; 908. Static ring; 10. Diesel engine. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] like Figure 3 , Figures 11-13As shown, the present invention discloses an energy-saving centrifugal pump for disaster relief, comprising a trailer 1, a transport structure 2 installed at one end of the trailer 1, a height adjustment structure 3 located at the other end of the trailer 1, an unfolding structure 4 fitted to the height adjustment structure 3, a fixing structure 5 installed on the unfolding structure 4, a centrifugal pump 6 installed on the trailer 1, a pump shaft 7 rotatably connected to the inside of the centrifugal pump 6, a drive structure 8 connected to the centrifugal pump 6, and a filter structure 9 located on the centrifugal pump 6; the filter structure 9 includes a docking sleeve 901 and a rotatably connected to the docking sleeve 901. The centrifuge tank 902 is internally connected to a connecting sleeve 901 at the inlet of the centrifugal pump 6. The end of the pump shaft 7 engages with the centrifuge tank 902. Both ends of the centrifuge tank 902 are fixedly connected to stationary rings 908. A rotating ring 907 is engaged on the inner wall of the connecting sleeve 901 near the stationary ring 908, with the sealing ring of the rotating ring 907 abutting against the sealing ring of the stationary ring 908. Blades 903 are fixedly connected inside the centrifuge tank 902. Multiple through slots 904 are formed on the side wall of the centrifuge tank 902. The bottom of the connecting sleeve 901 is fixed. A storage box 905 is connected, and a rubber cover 906 is fixedly connected to the bottom surface of the storage box 905. A hole is opened on the bottom surface of the centrifuge tank 902. The internal space of the storage box 905 is interconnected with the through groove 904. During the rotation of the pump shaft 7, the centrifuge tank 902 at the suction inlet of the centrifuge pump 6 will rotate inside the docking sleeve 901. Since both sides of the centrifuge tank 902 are provided with a stationary ring 908 and a rotating ring 907 between them and the inner wall of the docking sleeve 901, the sealing rings between them fit tightly together to form a sealing surface, preventing water leakage along the rotating shaft or preventing external leakage. Impurities enter the equipment while simultaneously providing lubrication. The centrifugal drum 902 drives the internal blades 903 to rotate. At this time, water is drawn into the centrifugal pump 6 through the holes on the bottom of the centrifugal drum 902. Larger sand particles undergo centrifugal motion with the blades 903 and move from the through groove 904 on the side wall of the centrifugal drum 902 to the internal space between the centrifugal drum 902 and the docking sleeve 901. Under the action of gravity, they fall into the storage box 905 at the bottom of the docking sleeve 901. By removing the rubber cover 906 at the bottom of the storage box 905, small particles of sand and other impurities can be cleaned out, making it highly practical.

[0040] Specifically, such as Figures 4-9As shown, the height adjustment structure 3 includes two load-bearing plates 301 and guide rods 302 fixedly connected to the ends of the load-bearing plates 301. A load-bearing plate 301 is fixedly connected to one end of the trailer 1 near the centrifugal pump 6. A slide 303 is slidably connected between the two guide rods 302. A mounting plate 304 is fixedly connected to the trailer 1 near the load-bearing plates 301. A motor 305 is fixedly connected to the mounting plate 304. The output shaft of the motor 305 is rotatably connected to the mounting plate 304. A lead screw 306 is fixedly connected to the output shaft of the motor 305. The lead screw 306 is threadedly connected to the top of the slide 303. A slide rod 307 is fixedly connected to the bottom of the lead screw 306. The slide rod 307 passes through the slide 303. The top part of the slide 303 has a "U"-shaped structure, and the bottom of the slide 303 is fitted with an unfolding structure 4. After adjusting the angle of the two swing arms 403, it is necessary to... The motor 305 drives the two pointed rods 504 downwards to penetrate the ground, improving stability. Simultaneously, the vertical height of the two pointed rods 504 can be precisely adjusted, offering high flexibility. Simply drive the lead screw 306 at the bottom clockwise via the motor 305. The lead screw 306 drives the slide 303 downwards along the two guide rods 302 on the load-bearing plate 301. Since the pawl 407 does not rotate clockwise, it will not drive the inner ratchet 406, and consequently, the slide 307 will not drive the second gear 404. Therefore, the two swing arms 403 will not rotate, while the lead screw 306 will drive the slide 303 and the two pointed rods 504 downwards, facilitating the penetration of the bottom surface of the pointed rods 504 into the ground, improving stability. During the downward movement of the slide 303, the bottom surface of the fixing bar 405 will contact the pawl 407 downwards. The pawl 407 drives the drive block 411 to slide along the slide 307, ensuring it does not affect the downward movement of the slide 303, resulting in high flexibility.

[0041] Specifically, such as Figure 1 and Figures 4-9As shown, the unfolding structure 4 includes two second rotating shafts 401 and a first gear 402 fixedly connected to the top of the second rotating shafts 401. The bottom of the slide 303 is rotatably connected to two second rotating shafts 401. A swing arm 403 is fixedly connected to the bottom of each second rotating shaft 401. A second gear 404 meshes between the two first gears 402. A fixing bar 405 is fixedly connected to the top surface of the second gear 404. Both ends of the fixing bar 405 are fixedly connected to the two second rotating shafts 401 respectively. An inner ratchet 406 is fixedly connected to the inner side of the second gear 404. The slide rod 307 passes through the fixing bar 405 and the inner ratchet 406 respectively. A drive block 411 is provided inside the second gear 404. The bottom surface of the drive block 411 abuts against the slide 303. The drive block 411 is slidably connected to the slide rod 307. The top surface of the drive block 411 is rotatably connected to a pawl 407. The pawl 407 engages with the inner ratchet 406. The top surface of the pawl 407 abuts against the fixing bar 405. The top surface of the drive block 411 is fixedly connected to a spring piece 408. The spring piece 408 abuts against the pawl 407. A guide post 409 is slidably connected to each of the two load-bearing plates 301. A pressure plate 410 is fixedly connected between the two guide posts 409. The pressure plate 410 is fixedly connected to the slide 303. The bottom surface of the pressure plate 410 abuts against the swing arm 403. A fixing structure 5 is fitted on the swing arm 403.After initially adjusting the height of the pointed rod 504, the angles of the two swing arms 403 need to be adjusted according to the unevenness and softness of the bottom surface to avoid the pointed rod 504 being suspended or not securely fixed due to uneven ground. At this time, turn on the power of the motor 305 on the mounting plate 304. The motor 305 drives the lead screw 306 on the output shaft to rotate counterclockwise. The lead screw 306 drives the bottom slide rod 307 to rotate. Since the slide rod 307 has a protrusion, the slide rod 307 drives the drive block 411 to rotate. The drive block 411 drives the pawl 407 to rotate, and because the pawl 407 and... When the inner ratchet 406 meshes with the pawl 407, its counter-clockwise rotation causes the inner ratchet 406 and the second gear 404 to rotate. The pawl 407 is then reset via the spring 408. Since each side of the second gear 404 is meshed with a first gear 402, the second gear 404 simultaneously drives both first gears 402 to rotate clockwise. The two first gears 402 simultaneously drive the second shaft 401 and the rocker arm 403 to rotate clockwise. The two rocker arms 403 simultaneously drive the two pointed rods 504 to rotate clockwise by the same angle, thus effectively adjusting the position of the two pointed rods 504 for easier adaptation. Under different ground conditions, and because the two swing arms 403 initially form a triangular structure, and both swing arms 403 always rotate at the same angle, they always form a triangular structure, resulting in strong stability. During the counterclockwise rotation of the lead screw 306, due to the threaded connection between the top part of the slide 303 and the lead screw 306, the lead screw 306 drives the slide 303 to move upward as a whole. The slide 303 drives the two first gears 402 to move upward, and at the same time, the slide 303 abuts against the drive block 411, causing the drive block 411 to move upward a certain distance along the slide rod 307. During the process, the bottom surface of the drive block 411 rotates with the slide 303. Because the drive block 411 is slidably connected to the slide rod 307, the problem of restricted rotation of the swing arm 403 due to the threaded connection between the lead screw 306 and the slide 303 is solved, resulting in high flexibility. Furthermore, since a pressure plate 410 is fixedly connected to the slide 303, and the guide posts 409 at both ends of the pressure plate 410 slide up and down on the load-bearing plate 301, while the bottom of the pressure plate 410 abuts against the two swing arms 403, it provides support for the swing arms 403, preventing deformation of the swing arms 403 under pressure and improving stability.

[0042] Specifically, such as Figure 1 and Figures 4-7As shown, the fixed structure 5 includes a telescopic plate 501 and a protective sleeve 502 fixedly connected to the end of the telescopic plate 501. The telescopic plates 501 are slidably connected inside both swing arms 403. The sidewalls of the telescopic plates 501 are locked to the swing arms 403 by second bolts 503. A pointed rod 504 is slidably connected inside the protective sleeve 502. Multiple through holes 506 are provided on the pointed rod 504. A pin 507 is engaged at the end of the telescopic plate 501. The pin 507 is slidably connected to the inner wall of the protective sleeve 502, and the end of the pin 507 is engaged in one of the through holes 506. The protective sleeve 502 has a "T"-shaped structure. A spring 505 is fixedly connected between the top surface of the protective sleeve 502 and the end of the pointed rod 504. When the trailer 1 is transported to the disaster site, the height and position of the two pointed rods 504 need to be adjusted according to the road conditions. Due to the reset action of the spring 505, the two... The pointed end of the pole 504 retracts into the protective sleeve 502, effectively preventing the pointed end of the pole 504 from being exposed to the outside when transporting the trailer 1, thus improving safety. Press down on the two poles 504 in sequence. Adjust the height of the two poles 504 according to the height or softness of the road surface. After the height of the two poles 504 is initially adjusted, insert the two pins 507 into the corresponding through holes 506 on the poles 504 from the end of the telescopic plate 501. At this time, the position of the poles 504 can be fixed. At the same time, the telescopic length of the telescopic plate 501 can be adjusted by removing the second bolt 503 on the swing arm 403. This makes it easier to adjust the length of the telescopic plate 501 so that the trailer 1 can remain level and stable on uneven ground, slopes, and uneven roads, improving stability and preventing tilting. Moreover, since the bottom of the pole 504 has a spike-like structure, it is easy for the pole 504 to be inserted into the bottom surface, improving the firmness.

[0043] Specifically, such as Figure 2 and Figure 3As shown, the transport structure 2 includes a mounting sleeve 201 and a telescopic rod 202 slidably connected inside the mounting sleeve 201. The mounting sleeve 201 is fixedly connected to the bottom surface of the trailer 1. The telescopic rod 202 is locked to the mounting sleeve 201 by a first bolt 203. A first rotating shaft 204 is rotatably connected to the end of the telescopic rod 202. A torsion spring 205 is fixedly connected between the end of the first rotating shaft 204 and the top surface of the telescopic rod 202. A connecting piece 206 is fixedly connected to the first rotating shaft 204. Two rotating parts 207 are rotatably connected to the connecting piece 206. A docking piece 208 is rotatably connected between the two rotating parts 207. To transport the emergency pump to the disaster site via the trailer 1 at the bottom, simply connect the trailer hook of the tractor to the docking piece 208 at the bottom of the trailer 1, and then adjust the telescopic rod 202 according to the type and height of the tractor. The distance extended outward from the mounting sleeve 201 ensures a proper distance between the trailer 1 and the towing vehicle, preventing collisions or interference during travel. After adjusting the telescopic rod 202 to the appropriate length, it is locked with the first bolt 203 to enhance stability. When the towing vehicle tows the trailer 1 and turns, the connecting piece 206 rotates through the first pivot 204, reducing the turning radius. Simultaneously, the first pivot 204 can be reset by the torsion spring 205, ensuring that the connecting piece 206 remains perpendicular to the trailer 1 when not in use. This facilitates the subsequent connection of the towing vehicle's trailer hook to the docking piece 208, improving operational efficiency. Furthermore, when the trailer 1 travels on uneven surfaces, the connecting piece 206 and the docking piece 208 are connected by two rotating parts 207, effectively absorbing some of the impact force caused by the uneven surfaces and helping to maintain the trailer 1's driving posture.

[0044] Specifically, such as Figure 1 , Figure 3 and Figure 10 As shown, a diesel engine 10 is fixedly connected to the trailer 1, and a drive structure 8 is fitted to the diesel engine 10. The drive structure 8 includes a first pulley 801 and a belt 802 wound around the first pulley 801. The end of the pump shaft 7 is fixedly connected to the first pulley 801, and a second pulley 803 is fixedly connected to the output shaft of the diesel engine 10. The belt 802 is wound between the first pulley 801 and the second pulley 803. When pumping water, the second pulley 803 on the diesel engine 10 drives the first pulley 801 to rotate through the belt 802. The first pulley 801 drives the pump shaft 7 on the centrifugal pump 6 to rotate, resulting in high operating efficiency.

[0045] In use, the emergency pump is transported to the disaster site via the trailer 1 at the bottom. Simply connect the tow hook of the tractor to the docking piece 208 at the bottom of the trailer 1. Then, adjust the extension rod 202's outward extension distance inside the mounting sleeve 201 according to the type and height of the tractor, ensuring a proper distance between the trailer 1 and the towing vehicle to avoid collisions or interference during travel. After adjusting the extension rod 202 to the appropriate length, it is locked with the first bolt 203 to improve stability. When the tractor tows the trailer 1 and turns, the pump... The connector 206 rotates via the first pivot 204, reducing the turning radius. Meanwhile, the first pivot 204 can be reset by the torsion spring 205, ensuring that the connector 206 remains perpendicular to the trailer 1 when not in use. This facilitates the subsequent connection of the towing vehicle's trailer hook to the docking part 208, improving operational efficiency. Furthermore, when the trailer 1 travels on uneven surfaces, the connector 206 and the docking part 208 are connected by two rotating parts 207, effectively absorbing some of the impact force caused by the uneven surfaces and helping to maintain the trailer 1's driving posture.

[0046] After towing trailer 1 to the disaster site, the height and position of the two pointed rods 504 need to be adjusted according to the road conditions. Due to the resetting action of the spring 505, the pointed ends of the two pointed rods 504 retract into the protective sleeve 502, effectively preventing the pointed ends of the rods 504 from being exposed during trailer 1 transport, thus improving safety. Press the two pointed rods 504 downwards in sequence. Adjust the height of the two pointed rods 504 according to the road surface's elevation or softness. After initially adjusting the height of the two pointed rods 504, insert them one by one... Pin 507 is inserted into the corresponding through hole 506 on the tip rod 504 from the end of the telescopic plate 501. At this time, the position of the tip rod 504 can be fixed. At the same time, the telescopic length of the telescopic plate 501 can be adjusted by removing the second bolt 503 on the swing arm 403. This makes it easier to adjust the length of the telescopic plate 501 so that the trailer 1 can remain level and stable on uneven ground, slopes, and uneven roads, thereby improving stability and preventing tilting. Furthermore, since the bottom of the tip rod 504 has a spike-like structure, it is easier for the tip rod 504 to be inserted into the bottom surface, thus improving its firmness.

[0047] After initially adjusting the height of the pointed rod 504, the angles of the two swing arms 403 need to be adjusted according to the unevenness and softness of the bottom surface to avoid the pointed rod 504 being suspended or not securely fixed due to uneven ground. At this time, turn on the power of the motor 305 on the mounting plate 304. The motor 305 drives the lead screw 306 on the output shaft to rotate counterclockwise. The lead screw 306 drives the bottom slide rod 307 to rotate. Since the slide rod 307 has a protrusion, the slide rod 307 drives the drive block 411 to rotate. The drive block 411 drives the pawl 407 to rotate, and because the pawl 407 and... When the inner ratchet 406 meshes with the pawl 407, its counter-clockwise rotation causes the inner ratchet 406 and the second gear 404 to rotate. The pawl 407 is then reset via the spring 408. Since each side of the second gear 404 is meshed with a first gear 402, the second gear 404 simultaneously drives both first gears 402 to rotate clockwise. The two first gears 402 simultaneously drive the second shaft 401 and the rocker arm 403 to rotate clockwise. The two rocker arms 403 simultaneously drive the two pointed rods 504 to rotate clockwise by the same angle, thus effectively adjusting the position of the two pointed rods 504 for easier adaptation. Under different ground conditions, and because the two swing arms 403 initially form a triangular structure, and both swing arms 403 always rotate at the same angle, they always form a triangular structure, resulting in strong stability. During the counterclockwise rotation of the lead screw 306, due to the threaded connection between the top part of the slide 303 and the lead screw 306, the lead screw 306 drives the slide 303 to move upward as a whole. The slide 303 drives the two first gears 402 to move upward, and at the same time, the slide 303 abuts against the drive block 411, causing the drive block 411 to move upward a certain distance along the slide rod 307. During the process, the bottom surface of the drive block 411 rotates with the slide 303. Because the drive block 411 and the slide rod 307 are slidably connected, the problem of the swing arm 403 being restricted from rotating due to the threaded connection between the lead screw 306 and the slide 303 is solved. The swing arm 403 is highly flexible. Furthermore, since the pressure plate 410 is fixedly connected to the slide 303, and the guide posts 409 at both ends of the pressure plate 410 slide up and down on the load-bearing plate 301, and the bottom of the pressure plate 410 abuts against the two swing arms 403, it provides support for the swing arms 403, preventing the swing arms 403 from deforming under pressure and improving stability.

[0048] After adjusting the angles of the two swing arms 403, the motor 305 drives the two pointed rods 504 downwards into the ground to improve stability. This also allows for precise adjustment of the vertical height of the two pointed rods 504, providing high flexibility. Simply drive the lead screw 306 at the bottom clockwise via the motor 305. The lead screw 306 drives the slide 303 downwards along the two guide rods 302 on the load-bearing plate 301. Simultaneously, because the pawl 407 does not rotate clockwise, it prevents the inner ratchet 406 from rotating. At this time, the slide bar 307 will not drive the second gear 404 to rotate, so the two swing arms 403 will not rotate. The lead screw 306 will drive the slide 303 and the two pointed rods 504 to move downward, so that the bottom surface of the pointed rods 504 can penetrate the ground and improve stability. During the downward movement of the slide 303, the bottom surface of the fixing bar 405 will abut against the pawl 407. The pawl 407 will drive the drive block 411 to slide along the slide bar 307, so that it will not affect the downward movement of the slide 303 and has high flexibility.

[0049] During pumping, the second pulley 803 on the diesel engine 10 drives the first pulley 801 to rotate via belt 802. The first pulley 801 drives the pump shaft 7 on the centrifugal pump 6 to rotate, resulting in high operating efficiency. During the rotation of the pump shaft 7, the centrifugal drum 902 at the suction inlet of the centrifugal pump 6 rotates inside the docking sleeve 901. Since both sides of the centrifugal drum 902 are provided with stationary rings 908 and rotating rings 907 between them and the inner wall of the docking sleeve 901, the sealing rings between them fit tightly to form a sealing surface, preventing water leakage along the rotating shaft or preventing external impurities from entering. Entering the equipment, it also serves as a lubricant. The centrifuge tank 902 drives the internal blades 903 to rotate. At this time, water is drawn into the centrifuge pump 6 through the holes on the bottom of the centrifuge tank 902. Larger sand particles will undergo centrifugal motion with the blades 903 and move from the through groove 904 on the side wall of the centrifuge tank 902 to the internal space between the centrifuge tank 902 and the docking sleeve 901. Under the action of gravity, they fall into the storage box 905 at the bottom of the docking sleeve 901. By removing the rubber cover 906 at the bottom of the storage box 905, small particles of impurities such as sand can be cleaned out. It is highly practical.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A disaster relief energy-saving centrifugal pump characterized by, The utility model provides a kind of centrifugal pump, including trailer (1), the consignment structure (2) being installed to one end of the trailer (1), the height adjustment structure (3) being arranged at the other end of the trailer (1), the unfolding structure (4) being cooperated on the height adjustment structure (3), the fixed structure (5) being installed on the unfolding structure (4), the centrifugal pump (6) being installed on the trailer (1), the pump shaft (7) being rotatably connected inside the centrifugal pump (6), the drive structure (8) being connected to the centrifugal pump (6), the filter structure (9) being arranged on the centrifugal pump (6); The filter structure (9) includes butt joint sleeve (901) and centrifugal barrel (902) rotatably connected inside butt joint sleeve (901), the suction inlet of the centrifugal pump (6) is fixedly connected with butt joint sleeve (901), the end of the pump shaft (7) is clamped with centrifugal barrel (902), both ends of the centrifugal barrel (902) are fixedly connected with static ring (908), the inner wall of the butt joint sleeve (901) is clamped with dynamic ring (907) near static ring (908), the sealing ring of the dynamic ring (907) is in contact with the sealing ring of static ring (908), the inside of the centrifugal barrel (902) is fixedly connected with blade (903), a plurality of through slots (904) are formed in the sidewall of the centrifugal barrel (902), the bottom of the butt joint sleeve (901) is fixedly connected with storage box (905), the bottom surface of the storage box (905) is fixedly connected with rubber cover (906); The bottom surface of the centrifugal barrel (902) is provided with a hole, and the internal space of the storage box (905) is in communication with the through slot (904);The height adjustment structure (3) includes two bearing plates (301) and guide rods (302) fixedly connected to the end of the bearing plate (301), the end of the trailer (1) close to the centrifugal pump (6) is fixedly connected with the bearing plate (301), the two guide rods (302) are slidably connected with the sliding frame (303), the position close to the bearing plate (301) on the trailer (1) is fixedly connected with the mounting plate (304), the mounting plate (304) is fixedly connected with the motor (305), the output shaft of the motor (305) is rotatably connected with the mounting plate (304), the output shaft of the motor (305) is fixedly connected with the lead screw (306), the top of the sliding frame (303) is threadedly connected with the lead screw (306), the bottom of the lead screw (306) is fixedly connected with the sliding rod (307), and the sliding rod (307) penetrates the sliding frame (303);The top of the sliding frame (303) is in "mouth” shape structure, and the bottom of the sliding frame (303) is matched with the unfolding structure (4).

2. The energy-saving centrifugal pump for disaster relief according to claim 1, characterized in that: The unfolding structure (4) comprises two second rotating shafts (401) and first gears (402) fixedly connected to top ends of the second rotating shafts (401), two second rotating shafts (401) are rotatably connected to the bottom of the slide (303), the bottom of the second rotating shaft (401) is fixedly connected with a swing arm (403), a second gear (404) is engaged between the two first gears (402), the top surface of the second gear (404) is fixedly connected with a fixed strip (405), the both ends of the fixed strip (405) are fixedly connected with the two second rotating shafts (401) respectively, the inner side of the second gear (404) is fixedly connected with an internal ratchet wheel (406), the slide rod (307) penetrates through the fixed strip (405) and the internal ratchet wheel (406) respectively, the inside of the second gear (404) is provided with a driving block (411), the bottom surface of the driving block (411) abuts against the slide (303), the driving block (411) is slidably connected with the slide rod (307), the top surface of the driving block (411) is rotatably connected with a pawl (407), the pawl (407) is engaged with the internal ratchet wheel (406), the top surface of the pawl (407) abuts against the fixed strip (405), the top surface of the driving block (411) is fixedly connected with an elastic sheet (408), and the elastic sheet (408) abuts against the pawl (407).

3. The energy-saving centrifugal pump for disaster relief according to claim 2, characterized in that: One guide column (409) is slidably connected to each of the two load bearing plates (301), a pressure bearing plate (410) is fixedly connected between the two guide columns (409), the pressure bearing plate (410) is fixedly connected with the slide (303), the bottom surface of the pressure bearing plate (410) abuts against the swing arm (403), and a fixing structure (5) is matched with the swing arm (403).

4. The energy-saving centrifugal pump for disaster relief according to claim 3, characterized in that: The fixing structure (5) comprises telescopic plates (501) and protective sleeves (502) fixedly connected to end portions of the telescopic plates (501), the inside of each of the two swing arms (403) is slidably connected with a telescopic plate (501), the side wall of the telescopic plate (501) and the swing arm (403) are locked by a second bolt (503), the inside of the protective sleeve (502) is slidably connected with a sharp rod (504), a plurality of through holes (506) are formed in the sharp rod (504), the end portion of the telescopic plate (501) is clamped with a bolt (507), the bolt (507) is slidably connected with the inner wall of the protective sleeve (502), and the end portion of the bolt (507) is clamped in one of the through holes (506).

5. The energy-saving centrifugal pump for disaster relief according to claim 4, characterized in that: The protective sleeve (502) is in a "T" shape structure, and the spring (505) is fixedly connected between the top surface of the protective sleeve (502) and the end portion of the sharp rod (504).

6. The energy-saving centrifugal pump for disaster relief according to claim 5, characterized in that: The consigning structure (2) includes a mounting sleeve (201) and a telescopic rod (202) slidably connected in the mounting sleeve (201), the bottom surface of the trailer (1) is fixedly connected with the mounting sleeve (201), the telescopic rod (202) is locked with the mounting sleeve (201) through a first bolt (203), the end of the telescopic rod (202) is rotatably connected with a first rotating shaft (204), the end of the first rotating shaft (204) and the top surface of the telescopic rod (202) are fixedly connected with a torsion spring (205), the first rotating shaft (204) is fixedly connected with a connecting piece (206), the connecting piece (206) is rotatably connected with two rotating pieces (207), and the two rotating pieces (207) are rotatably connected with a butt joint piece (208).

7. The energy-saving centrifugal pump for disaster relief according to claim 6, characterized in that: The trailer (1) is fixedly connected with a diesel engine (10), the diesel engine (10) is matched with a driving structure (8), the driving structure (8) comprises a first belt pulley (801) and a belt (802) wound on the first belt pulley (801), the end of the pump shaft (7) is fixedly connected with the first belt pulley (801), the output shaft of the diesel engine (10) is fixedly connected with a second belt pulley (803), and the first belt pulley (801) and the second belt pulley (803) are wound with the belt (802).

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