Energy-saving centrifugal pump for disaster relief

Abstract

The invention relates to the technical field of rescue pumps, in particular to an energy-saving centrifugal pump for disaster relief, which comprises a trailer, a consignment structure, a height adjusting structure, an unfolding structure, a fixing structure, a centrifugal pump, a pump shaft, a driving structure, a filtering structure and a diesel engine. The length and angle of the tow hook can be adjusted conveniently through the consignment structure, so that the tow hook can adapt to tractors of different types and heights conveniently, flexibility is high, the angle and height of the supporting legs can be adjusted conveniently through the unfolding structure, different complex bottom faces can be adapted conveniently, and the overall stability is improved. The height of the supporting legs can be conveniently adjusted through the fixing structures, meanwhile, the supporting legs can penetrate into the ground, firmness is improved, the equipment is prevented from turning over, small-particle impurities such as sand mixed in water can be effectively filtered out through the filtering structures, and the service life of the impeller is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of emergency pumps, in particular to an energy-saving centrifugal pump for disaster relief. Background Art

[0002] Flood rescue pumps are special pumps used for flood prevention and emergency rescue work. They usually have a large flow rate and head, and can quickly pump large amounts of water from reservoirs, rivers, lakes, etc. to reduce the losses caused by floods. Therefore, in the event of a flood or other emergency, the rescue pump is mainly composed of a centrifugal pump, a diesel engine, a flatbed truck and other equipment. By pulling the tractor to the disaster site, the flood rescue pump can be quickly deployed and operated, helping to control the flood within an acceptable range and protect life and property.

[0003] When pumping water, traditional emergency pumps usually wrap a filter at the end of the suction pipe to isolate garbage, fiber and other impurities to prevent them from being sucked into the centrifugal pump and causing blockage. However, the water may contain sand or other small particles of impurities, which are small in size and will pass through the filter on the suction pipe and be sucked into the pump body with the water flow. The impeller is always rotating at high speed, and the small particles of impurities such as sand will aggravate the wear of the impeller, causing wear marks, gaps and even cracks on the surface of the impeller, affecting the performance and service life of the impeller.

[0004] When the rescue pump is transported to the disaster site, the tractor is usually connected to the tractor hook at the end of the rescue 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 tractors of different types and heights, and has poor flexibility. When the rescue pump truck turns following the tractor, the turning radius increases due to the fixed trailer, and the flexibility is poor.

[0005] When in use, the rescue pump is usually towed to the disaster site by a tractor. Since the disaster-stricken ground is complex and bumpy, the rescue pump needs to maintain the overall level during operation. Usually, a supporting leg is fixed with bolts at the front and rear of the vehicle body. However, due to the small contact area between the support leg and the ground, the overall center of gravity is high and the stability is poor. At the same time, the diesel engine will produce large vibrations during operation. If the ground under the support leg is soft or uneven, the support leg position is constant, which can easily cause the flatbed truck to tilt or overturn. Summary of the invention

[0006] In view of the problems in the prior art, the present invention provides an energy-saving centrifugal pump for disaster relief.

[0007] The technical solution adopted by the present invention to solve the technical problem is: an energy-saving centrifugal pump for disaster relief, comprising a trailer, a shipping structure installed at one end of the trailer, a height adjustment structure arranged at the other end of the trailer, an unfolding structure matched with the height adjustment structure, a fixing structure installed on the unfolding structure, a centrifugal pump installed on the trailer, a pump shaft rotatably connected to the inside of the centrifugal pump, a driving structure connected to the centrifugal pump, and a filtering structure arranged on the centrifugal pump;

[0008] The filtering structure includes a docking sleeve and a centrifugal bucket rotatably connected to the inside of the docking sleeve, the docking sleeve is fixedly connected to the suction port of the centrifugal pump, the end of the pump shaft and the centrifugal bucket are engaged with each other, both ends of the centrifugal bucket are fixedly connected to static rings, a dynamic ring is engaged with a position close to the static ring on the inner wall of the docking sleeve, the sealing ring of the dynamic ring is in contact with the sealing ring of the static ring, blades are fixedly connected to the inside of the centrifugal bucket, a plurality of through grooves are opened on the side wall of the centrifugal bucket, the bottom of the docking sleeve is fixedly connected to a storage box, and the bottom surface of the storage box is fixedly connected to a rubber cover.

[0009] Specifically, a hole is formed on the bottom surface of the centrifugal barrel, and the internal space of the storage box is communicated with the through groove.

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

[0011] Specifically, the top portion of the slide is in a "mouth"-shaped structure, and the bottom of the slide is equipped with an expansion structure.

[0012] The cam is connected with the second gear of the driving mechanism, and the cam is connected with the second gear of the driving mechanism, and the cam is connected with the second gear of the driving mechanism.

[0013] Specifically, each of the two load-bearing plates is slidably connected to a guide column, a pressure plate is fixedly connected between the two guide columns, the pressure plate is fixedly connected to the slide, the bottom surface of the pressure plate is in contact with the swing arm, and a fixed structure is provided on the swing arm.

[0014] Specifically, the fixed structure includes a telescopic plate and a protective cover fixedly connected to the end of the telescopic plate, the telescopic plates are slidably connected to the inside of the two swing arms, the side walls of the telescopic plates are locked with the swing arms by a second bolt, the inside of the protective cover is slidably connected to a pointed rod, a plurality of through holes are provided on the pointed rod, a latch is engaged with the end of the telescopic plate, the latch is slidably connected to the inner wall of the protective cover, and the end of the latch is engaged with one of the through holes.

[0015] Specifically, the protective sleeve is in 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 shipping structure includes a mounting sleeve and a telescopic rod slidably connected to the inside of 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 by a first bolt, the end of the telescopic rod is rotatably connected to a first rotating shaft, a torsion spring is fixedly connected between the end of the first rotating shaft and the top surface of the telescopic rod, a connecting piece is fixedly connected to the first rotating shaft, two rotating pieces are rotatably connected to the connecting piece, and a docking piece is rotatably connected between the two rotating pieces.

[0017] Specifically, a diesel engine is fixedly connected to the trailer, and a driving structure is provided on the diesel engine. The driving 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, and a belt is wound between the first pulley and the second pulley.

[0018] The beneficial effects of the present invention are:

[0019] (1) The energy-saving centrifugal pump for disaster relief described in the present invention has a shipping structure installed on the trailer. The setting of the shipping structure is convenient for adjusting the length and angle of the trailer hook, so as to adapt to tractors of different types and heights, and has strong flexibility.

[0020] (2) The energy-saving centrifugal pump for disaster relief described in the present invention has a height adjustment structure installed on the trailer. The height adjustment structure is used in conjunction with the unfolding structure. The arrangement of the unfolding structure facilitates adjustment of the angle and height of the supporting legs, thereby facilitating adaptation to different complex bottom surfaces and improving overall stability.

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

[0022] (4) The energy-saving centrifugal pump for disaster relief described in the present invention has a filter structure installed on the centrifugal pump. The filter structure can effectively filter out smaller particle impurities such as sand mixed in the water, thereby extending the service life of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with 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 An enlarged schematic diagram of the structure of section A is shown;

[0026] Figure 3 It 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 An enlarged schematic diagram of the structure of part B is shown;

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

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

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

[0031] Figure 8 for Figure 7 An enlarged schematic diagram of the C-section structure is shown;

[0032] Fig. 9 It is a schematic diagram of the connection structure between the screw rod and the slide of the present invention;

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

[0034] Fig.11 for Fig.10 An enlarged schematic diagram of the D-section structure is shown;

[0035] Fig.12 for Fig.11 An enlarged schematic diagram of the structure of part E is shown;

[0036] Fig.13 It is a schematic diagram of the connection structure between the centrifugal barrel and the blades of the present invention.

[0037] In the figure: 1, trailer; 2, shipping structure; 201, mounting sleeve; 202, telescopic rod; 203, first bolt; 204, first rotating shaft; 205, torsion spring; 206, connecting piece; 207, rotating piece; 208, docking piece; 3, height adjustment structure; 301, load-bearing plate; 302, guide rod; 303, slide; 304, mounting plate; 305, motor; 306, lead screw; 307, slide; 4, unfolding structure; 401, second rotating shaft; 402, first gear; 403, swing arm; 404, second gear; 405, fixing strip; 406, inner ratchet; 407, ratchet; 408 , shrapnel; 409, guide column; 410, pressure plate; 411, drive block; 5, fixed structure; 501, telescopic plate; 502, protective cover; 503, second bolt; 504, pointed rod; 505, spring; 506, through hole; 507, latch; 6, centrifugal pump; 7, pump shaft; 8, drive structure; 801, first pulley; 802, belt; 803, second pulley; 9, filtering structure; 901, docking sleeve; 902, centrifugal barrel; 903, blades; 904, through groove; 905, storage box; 906, rubber cover; 907, dynamic ring; 908, static ring; 10, diesel engine. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] like Figure 3 , Figure 11-13As shown, the energy-saving centrifugal pump for disaster relief described in the present invention includes a trailer 1, a shipping structure 2 installed at one end of the trailer 1, a height adjustment structure 3 provided at the other end of the trailer 1, an expansion structure 4 matched with the height adjustment structure 3, a fixing structure 5 installed on the expansion 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 driving structure 8 connected to the centrifugal pump 6, and a filtering structure 9 provided on the centrifugal pump 6; the filtering structure 9 includes a docking sleeve 901 and a fixing structure 5 rotatably connected to the docking sleeve 901. The centrifugal bucket 902 inside, the suction port of the centrifugal pump 6 is fixedly connected with a docking sleeve 901, the end of the pump shaft 7 is engaged with the centrifugal bucket 902, both ends of the centrifugal bucket 902 are fixedly connected with a static ring 908, a dynamic ring 907 is engaged with the inner wall of the docking sleeve 901 near the static ring 908, the sealing ring of the dynamic ring 907 is in contact with the sealing ring of the static ring 908, the inside of the centrifugal bucket 902 is fixedly connected with a blade 903, a plurality of through grooves 904 are opened on the side wall of the centrifugal bucket 902, and the bottom of the docking sleeve 901 is fixedly connected with a static ring 908. 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 centrifugal bucket 902, and the internal space of the storage box 905 is connected to the through groove 904. During the rotation of the pump shaft 7, the centrifugal bucket 902 at the suction port of the centrifugal pump 6 will be driven to rotate inside the docking sleeve 901. Since a static ring 908 and a dynamic ring 907 are provided between the two sides of the centrifugal bucket 902 and the inner wall of the docking sleeve 901, the sealing rings between the two are tightly fitted to form a sealing surface to prevent water from leaking along the rotating shaft or preventing external The centrifugal barrel 902 drives the internal blades 903 to rotate. At this time, water is sucked into the centrifugal pump 6 through the holes on the bottom of the centrifugal barrel 902, and the larger particles of sand will perform centrifugal motion with the blades 903, and move from the through grooves 904 on the side walls of the centrifugal barrel 902 to the internal space between the centrifugal barrel 902 and the docking sleeve 901, and fall into the storage box 905 at the bottom of the docking sleeve 901 under the action of gravity. The small particles of impurities such as sand inside can be cleaned by removing the rubber cover 906 at the bottom of the storage box 905, which is highly practical.

[0040] Specifically, Figure 4-Figure 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, the load-bearing plate 301 is fixedly connected to one end of the trailer 1 close to 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 position of the trailer 1 close to the load-bearing plate 301, a motor 305 is fixedly connected to the mounting plate 304, an output shaft of the motor 305 is rotatably connected to the mounting plate 304, a screw rod 306 is fixedly connected to the output shaft of the motor 305, the screw rod 306 is threadedly connected to the top of the slide 303, a slide rod 307 is fixedly connected to the bottom of the screw rod 306, the slide rod 307 runs through the slide 303, the top part of the slide 303 is a "mouth"-shaped structure, and the bottom of the slide 303 is matched with an expansion structure 4; after adjusting the angles of the two swing arms 403, it is necessary to The motor 305 drives the two pointed rods 504 to penetrate the ground downward, thereby improving stability and being able to accurately adjust the vertical height of the two pointed rods 504. The motor 305 only needs to drive the screw rod 306 at the bottom to rotate clockwise, and the screw rod 306 drives the slide 303 to move downward along the two guide rods 302 on the load-bearing plate 301. At the same time, since the clockwise pawl 407 will not drive the inner ratchet 406 to rotate, the slide rod 307 will not drive the second gear 404 to rotate at this time, and the two swing arms 403 will not rotate, and the screw rod 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. In the process of the slide 303 moving downward, the bottom surface of the fixed bar 405 will resist the pawl 407 downward, and the pawl 407 will drive the drive block 411 to slide along the slide rod 307, so that it does not affect the downward movement of the slide 303. The flexibility is strong.

[0041] Specifically, Figure 1 and Figure 4-Figure 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 shaft 401, the bottom of the slide 303 is rotatably connected to the two second rotating shafts 401, the bottom of the second rotating shaft 401 is fixedly connected to a swing arm 403, a second gear 404 is meshed between the two first gears 402, a fixing bar 405 is fixedly connected to the top surface of the second gear 404, the two ends of the fixing bar 405 are respectively fixedly connected to the two second rotating shafts 401, an inner ratchet 406 is fixedly connected to the inner side of the second gear 404, the sliding rod 307 passes through the fixing bar 405 and the inner ratchet 406 respectively, a driving block 411 is provided inside the second gear 404, the The bottom surface of the driving block 411 abuts against the slide 303, the driving block 411 is slidably connected to the slide bar 307, the top surface of the driving block 411 is rotatably connected with a pawl 407, the pawl 407 is engaged with the inner ratchet 406, the top surface of the pawl 407 abuts against the fixed bar 405, the top surface of the driving block 411 is fixedly connected with a spring piece 408, the spring piece 408 abuts against the pawl 407, each of the two load-bearing plates 301 is slidably connected with a guide column 409, a pressure plate 410 is fixedly connected between the two guide columns 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, and the swing arm 403 is matched with a fixed structure 5;After the height of the pointed rod 504 is initially adjusted, the angles of the two swing arms 403 need to be adjusted according to the potholes and softness of the bottom surface to avoid the problem that a certain pointed rod 504 is suspended in the air or is not firmly fixed due to the potholes on the ground. At this time, the power supply of the motor 305 on the mounting plate 304 is turned on, and the motor 305 drives the screw rod 306 on the output shaft to rotate counterclockwise, and the screw rod 306 drives the bottom sliding rod 307 to rotate. Since the sliding rod 307 is provided with a convex part, the sliding rod 307 drives the driving block 411 to rotate, and the driving block 411 drives the ratchet 407 to rotate, and since the ratchet 407 and the The inner ratchet wheels 406 are meshed with each other, and when the pawl 407 rotates counterclockwise, the inner ratchet wheel 406 and the second gear 404 are driven to rotate, and the pawl 407 is reset by the spring piece 408. Because both sides of the second gear 404 are meshed with a first gear 402, the second gear 404 drives the two first gears 402 to rotate clockwise at the same time, and the two first gears 402 drive the second shaft 401 and the swing arm 403 to rotate clockwise at the same time, and the two swing arms 403 drive the two pointed rods 504 to rotate clockwise at the same angle at the same time, thereby effectively adjusting the positions of the two pointed rods 504, so as to adapt to Different ground conditions, and because the two swing arms 403 form a triangular structure in the initial state, and the two swing arms 403 always rotate at the same angle, and thus the two always form a triangular structure with strong stability. During the counterclockwise rotation of the screw rod 306, since the top part of the slide 303 is threadedly connected with the screw rod 306, the screw rod 306 will drive the slide 303 to move upward as a whole, and the slide 303 drives the two first gears 402 to move upward, and at the same time, the slide 303 resists the driving block 411 upward, so that the driving block 411 moves upward along the slide rod 307 for a distance. During the process, the bottom surface of the driving block 411 rotates with the slide 303. Since the driving block 411 is slidably connected with the slide rod 307, the problem of limiting the rotation of the swing arm 403 due to the threaded connection between the screw rod 306 and the slide 303 is solved, and the flexibility is strong. Moreover, since the slide 303 is fixedly connected with the pressure plate 410, and the guide columns 409 at both ends of the pressure plate 410 slide up and down on the bearing plate 301, and the bottom of the pressure plate 410 contacts the two swing arms 403, the swing arm 403 is supported, and the deformation of the swing arm 403 under pressure is avoided, thereby improving the stability. ;

[0042] Specifically, Figure 1 and Figure 4-Figure 7As shown, the fixed structure 5 includes a telescopic plate 501 and a protective cover 502 fixedly connected to the end of the telescopic plate 501, the insides of the two swing arms 403 are slidably connected with the 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 cover 502 is slidably connected with a pointed rod 504, and a plurality of through holes 506 are opened on the pointed rod 504, and a latch 507 is engaged with the end of the telescopic plate 501, and the latch 507 is slidably connected to the inner wall of the protective cover 502, and the end of the latch 507 is engaged with one of the through holes 506, and the protective cover 502 is in a "T"-shaped structure, and a spring 505 is fixedly connected between the top surface of the protective cover 502 and the end of the pointed rod 504; when the trailer 1 is transported to the disaster site, it is necessary to adjust the height and position of the two pointed rods 504 according to the road conditions. The sharp end of the pointed rod 504 is retracted into the inside of the protective cover 502, thereby effectively avoiding the sharp end of the pointed rod 504 from being exposed to the outside when the trailer 1 is transported, thereby improving safety. The two pointed rods 504 are pressed downward in turn, and the heights of the two pointed rods 504 only need to be adjusted according to the height or softness of the road surface. After the heights of the two pointed rods 504 are preliminarily adjusted, the two latches 507 are inserted into the corresponding through holes 506 on the pointed rods 504 from the ends of the telescopic plate 501 in turn. At this time, the position of the pointed rod 504 can be fixed, and the telescopic length of the telescopic plate 501 can be adjusted by removing the second bolt 503 on the swing arm 403, so as to facilitate the adjustment of the length of the telescopic plate 501, so that the trailer 1 can remain horizontal and stable in places such as potholes, slopes, and uneven roads, thereby improving stability and preventing rollover. Moreover, since the bottom of the pointed rod 504 is a thorn-like structure, it is convenient for the pointed rod 504 to be inserted into the bottom surface, thereby improving firmness.

[0043] Specifically, Figure 2 and Figure 3As shown, the shipping structure 2 includes a mounting sleeve 201 and a telescopic rod 202 slidably connected to the inside of the mounting sleeve 201, the bottom surface of the trailer 1 is fixedly connected with the mounting sleeve 201, the telescopic rod 202 and the mounting sleeve 201 are locked by a first bolt 203, the end of the telescopic rod 202 is rotatably connected with a first rotating shaft 204, 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 pieces 207 are rotatably connected to the connecting piece 206, and a docking piece 208 is rotatably connected between the two rotating pieces 207; to ship the rescue pump to the disaster site through the trailer 1 at the bottom, it is only necessary to 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 inside of the mounting sleeve 201 ensures that the trailer 1 and the towing vehicle maintain an appropriate distance to avoid collision or interference with each other during driving. When the telescopic rod 202 is adjusted to an appropriate length, it is locked by the first bolt 203 to improve the firmness. When the tractor tows the trailer 1 to turn, the connecting member 206 rotates through the first rotating shaft 204 to reduce the turning radius. At the same time, the first rotating shaft 204 can be reset by the torsion spring 205, so that the connecting member 206 is always kept in a vertical state with the trailer 1 when not in use, which is convenient for the subsequent connection of the trailer hook of the tractor with the docking member 208, thereby improving the operating efficiency. At the same time, when the trailer 1 travels to a bumpy road surface, since the connecting member 206 and the docking member 208 are rotatably connected by two rotating members 207, part of the impact force caused by the bumpy road surface can be effectively absorbed, and it is also beneficial to maintain the driving posture of the trailer 1.

[0044] Specifically, Figure 1 , Figure 3 and Fig.10 As shown, the trailer 1 is fixedly connected to a diesel engine 10, and the diesel engine 10 is equipped with a driving structure 8, and the driving 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 the output shaft of the diesel engine 10 is fixedly connected to a second pulley 803, and a 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, and the first pulley 801 drives the pump shaft 7 on the centrifugal pump 6 to rotate, and the operation efficiency is high.

[0045] When the present invention is in use, the emergency pump is transported to the disaster site through the trailer 1 at the bottom. It is only necessary to connect the trailer hook of the tractor with the docking piece 208 at the bottom of the trailer 1, and then adjust the distance of the telescopic rod 202 extending outward from the inside of the mounting sleeve 201 according to the type and height of the tractor, so as to ensure that the trailer 1 and the towing vehicle maintain a proper distance to avoid mutual collision or interference during driving. When the telescopic rod 202 is adjusted to a suitable length, it is locked by the first bolt 203 to improve the firmness. When the tractor tows the trailer 1 to turn, the telescopic rod 202 is connected to the trailer 1. The connecting member 206 rotates through the first rotating shaft 204, which reduces the turning radius. At the same time, the first rotating shaft 204 can be reset through the torsion spring 205, so that the connecting member 206 always maintains a vertical state with the trailer 1 when not in use, which is convenient for the subsequent connection of the trailer hook of the tractor with the docking member 208, thereby improving the operation efficiency. At the same time, when the trailer 1 travels on a pothole road, the connecting member 206 and the docking member 208 are rotatably connected through two rotating members 207, which can effectively absorb part of the impact force caused by the pothole road, and is conducive to maintaining the driving posture of the trailer 1;

[0046] After 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. Because the sharp ends of the two pointed rods 504 are retracted into the protective cover 502 under the reset action of the spring 505, the sharp ends of the pointed rods 504 are effectively avoided from being exposed to the outside when the trailer 1 is transported, thereby improving safety. The two pointed rods 504 are pressed downward in turn, and the height of the two pointed rods 504 is adjusted according to the height or softness of the road surface. After the height of the two pointed rods 504 is initially adjusted, the two inserted rods 504 are pressed downward in turn. The pin 507 is inserted from the end of the telescopic plate 501 into the corresponding through hole 506 on the pointed rod 504, so that the position of the pointed 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, so that the trailer 1 can be kept horizontal and stable in positions such as potholes, slopes, and uneven roads by adjusting the length of the telescopic plate 501, thereby improving stability and preventing rollover. In addition, since the bottom of the pointed rod 504 is a thorn-like structure, it is convenient for the pointed rod 504 to be inserted into the bottom surface, thereby improving firmness.

[0047] After the height of the pointed rod 504 is initially adjusted, the angles of the two swing arms 403 need to be adjusted according to the potholes and softness of the bottom surface to avoid the problem that a certain pointed rod 504 is suspended in the air or is not firmly fixed due to the potholes on the ground. At this time, the power supply of the motor 305 on the mounting plate 304 is turned on, and the motor 305 drives the screw rod 306 on the output shaft to rotate counterclockwise, and the screw rod 306 drives the bottom sliding rod 307 to rotate. Since the sliding rod 307 is provided with a convex part, the sliding rod 307 drives the driving block 411 to rotate, and the driving block 411 drives the ratchet 407 to rotate, and since the ratchet 407 and the The inner ratchet wheels 406 are meshed with each other, and when the pawl 407 rotates counterclockwise, the inner ratchet wheel 406 and the second gear 404 are driven to rotate, and the pawl 407 is reset by the spring piece 408. Because both sides of the second gear 404 are meshed with a first gear 402, the second gear 404 drives the two first gears 402 to rotate clockwise at the same time, and the two first gears 402 drive the second shaft 401 and the swing arm 403 to rotate clockwise at the same time, and the two swing arms 403 drive the two pointed rods 504 to rotate clockwise at the same angle at the same time, thereby effectively adjusting the positions of the two pointed rods 504, so as to adapt to Different ground conditions, and because the two swing arms 403 form a triangular structure in the initial state, and the two swing arms 403 always rotate at the same angle, and thus the two always form a triangular structure with strong stability. During the counterclockwise rotation of the screw rod 306, since the top part of the slide 303 is threadedly connected with the screw rod 306, the screw rod 306 will drive the slide 303 to move upward as a whole, and the slide 303 drives the two first gears 402 to move upward, and at the same time, the slide 303 resists the driving block 411 upward, so that the driving block 411 moves upward along the slide rod 307 for a distance. During the process, the bottom surface of the driving block 411 rotates with the slide 303. Since the driving block 411 is slidably connected with the slide rod 307, the problem of limiting the rotation of the swing arm 403 due to the threaded connection between the screw rod 306 and the slide 303 is solved, and the flexibility is strong. In addition, since the slide 303 is fixedly connected with the pressure plate 410, and the guide columns 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 contacts the two swing arms 403, the swing arm 403 is supported, and the swing arm 403 is prevented from being deformed under pressure and pressure, thereby improving stability.

[0048] After adjusting the angles of the two swing arms 403, the motor 305 is required to drive the two pointed rods 504 downward to penetrate the ground to improve stability. At the same time, the vertical height of the two pointed rods 504 can be accurately adjusted. It is flexible and only needs to drive the screw rod 306 at the bottom to rotate clockwise through the motor 305. The screw rod 306 drives the slide 303 to move downward along the two guide rods 302 on the load-bearing plate 301. At the same time, the clockwise pawl 407 will not drive the inner ratchet 406 to rotate, thereby At this time, the slide bar 307 will not drive the second gear 404 to rotate, and the two swing arms 403 will not rotate, and the screw rod 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 to improve stability. In the process of the slide 303 moving downward, the bottom surface of the fixing bar 405 will resist the pawl 407 downward, and the pawl 407 will drive the driving block 411 to slide along the slide bar 307, so that it does not affect the downward movement of the slide 303, and the flexibility is strong.

[0049] When pumping water, the second pulley 803 on the diesel engine 10 drives the first pulley 801 to rotate through the belt 802, and the first pulley 801 drives the pump shaft 7 on the centrifugal pump 6 to rotate, with high operating efficiency. During the rotation of the pump shaft 7, the centrifugal barrel 902 at the suction port of the centrifugal pump 6 will be driven to rotate inside the docking sleeve 901. Since static rings 908 and dynamic rings 907 are provided between the two sides of the centrifugal barrel 902 and the inner wall of the docking sleeve 901, the sealing rings between the two fit tightly to form a sealing surface, thereby preventing water from leaking along the rotating shaft or preventing external impurities. The centrifugal barrel 902 drives the internal blades 903 to rotate. At this time, water is sucked into the centrifugal pump 6 through the holes on the bottom of the centrifugal barrel 902, and the larger particles of sand will perform centrifugal motion with the blades 903, and move from the through grooves 904 on the side walls of the centrifugal barrel 902 to the internal space between the centrifugal barrel 902 and the docking sleeve 901, and fall into the storage box 905 at the bottom of the docking sleeve 901 under the action of gravity. The small particles of impurities such as sand inside can be cleaned by removing the rubber cover 906 at the bottom of the storage box 905, which is highly practical.

[0050] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An energy-saving centrifugal pump for disaster relief, characterized in that: The trailer comprises a trailer (1), a transport structure (2) installed at one end of the trailer (1), a height adjustment structure (3) provided at the other end of the trailer (1), an unfolding structure (4) matched with 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 driving structure (8) connected to the centrifugal pump (6), and a filtering structure (9) provided on the centrifugal pump (6); The filtering structure (9) comprises a docking sleeve (901) and a centrifugal bucket (902) rotatably connected to the inside of the docking sleeve (901); the docking sleeve (901) is fixedly connected to the suction port of the centrifugal pump (6); the end of the pump shaft (7) and the centrifugal bucket (902) are mutually engaged; both ends of the centrifugal bucket (902) are fixedly connected to static rings (908); a dynamic ring (907) is engaged at a position close to the static ring (908) on the inner wall of the docking sleeve (901); the sealing ring of the dynamic ring (907) contacts the sealing ring of the static ring (908); a blade (903) is fixedly connected to the inside of the centrifugal bucket (902); a plurality of through grooves (904) are provided on the side wall of the centrifugal bucket (902); a storage box (905) is fixedly connected to the bottom of the docking sleeve (901); and a rubber cover (906) is fixedly connected to the bottom surface of the storage box (905).

2. The energy-saving centrifugal pump for disaster relief according to claim 1, characterized in that: The bottom surface of the centrifugal bucket (902) is provided with a hole, and the internal space of the storage box (905) and the through groove (904) are connected to each other.

3. The energy-saving centrifugal pump for disaster relief according to claim 1, characterized in that: The height adjustment structure (3) comprises two load-bearing plates (301) and guide rods (302) fixedly connected to the ends of the load-bearing plates (301); the load-bearing plate (301) is fixedly connected to one end of the trailer (1) close to the centrifugal pump (6); a slide (303) is slidably connected between the two guide rods (302); a mounting plate (304) is fixedly connected to a position close to the load-bearing plate (301) on the trailer (1); a motor (305) is fixedly connected to the mounting plate (304); an 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); and the slide rod (307) passes through the slide (303).

4. The energy-saving centrifugal pump for disaster relief according to claim 3, characterized in that: The top portion of the slide (303) is in a "mouth"-shaped structure, and the bottom of the slide (303) is equipped with an expansion structure (4).

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

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

7. The energy-saving centrifugal pump for disaster relief according to claim 6, characterized in that: The fixed structure (5) comprises a telescopic plate (501) and a protective sleeve (502) fixedly connected to the end of the telescopic plate (501); the insides of the two swing arms (403) are both slidably connected with the telescopic plates (501); the side walls of the telescopic plates (501) and the swing arms (403) are locked by second bolts (503); the inside of the protective sleeve (502) is slidably connected with a pointed rod (504); a plurality of through holes (506) are provided on the pointed rod (504); a latch (507) is engaged at the end of the telescopic plate (501); the latch (507) is slidably connected to the inner wall of the protective sleeve (502); the end of the latch (507) is engaged with one of the through holes (506).

8. The energy-saving centrifugal pump for disaster relief according to claim 7, characterized in that: The protective sleeve (502) is in a "T"-shaped structure, and a spring (505) is fixedly connected between the top surface of the protective sleeve (502) and the end of the pointed rod (504).

9. The energy-saving centrifugal pump for disaster relief according to claim 1, characterized in that: The shipping structure (2) comprises a mounting sleeve (201) and a telescopic rod (202) slidably connected to the inside of the mounting sleeve (201); the mounting sleeve (201) is fixedly connected to the bottom surface of the trailer (1); the telescopic rod (202) and the mounting sleeve (201) are locked by a first bolt (203); the end of the telescopic rod (202) is rotatably connected to a first rotating shaft (204); 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 pieces (207) are rotatably connected to the connecting piece (206); a docking piece (208) is rotatably connected between the two rotating pieces (207).

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

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