A high-pressure water pump for a road cleaning vehicle

Abstract

The present invention discloses a high-pressure water pump for a road cleaning vehicle, which relates to the technical field of liquid displacement pumps. This high-pressure water pump for a road cleaning vehicle includes a plunger pump body disposed on the road cleaning vehicle, and the plunger pump body includes a base, a pump body, a motor, a water inlet pipe and a water outlet pipe. A protective cover is fixedly connected to the top of the base. Before use, this high-pressure water pump for a road cleaning vehicle facilitates blowing high-temperature air into the pump body for preheating treatment. During use, it facilitates spraying water and blowing air for cooling on the surface of the pump body. After use, it facilitates blowing high-temperature air into the pump body to dry the water stains. At the same time, it can absorb moisture by using a desiccant to ensure its use effect and service life. Moreover, it can recycle the waste heat of the air and automatically dry the desiccant, avoiding heat waste while ensuring the subsequent moisture absorption efficiency and effect of the desiccant.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid variable - volume pumps, and particularly to a high - pressure water pump for a road cleaning vehicle. Background Art

[0002] The high - pressure water pump of a road cleaning vehicle usually uses a piston pump. A positive - displacement pump refers to a pump that uses the change in the volume within the pump cylinder to transport liquid. The principle of a piston pump is that through the reciprocating movement of the piston in the cylinder block, the volume of the sealed working chamber is changed, thereby generating a pressure difference to input the fluid. Specifically, when the piston moves inward, the volume of the chamber decreases, and the liquid is pushed out of the pump body; when the piston moves outward, the volume of the chamber increases, and the suction liquid enters the pump body. By continuously repeating this reciprocating movement, the piston pump can continuously transport liquid. The piston pump belongs to one type of positive - displacement pump.

[0003] However, when the existing high - pressure water pump of a road cleaning vehicle is in use, before use, it is not convenient to heat and pre - heat the pump body. Due to the low temperature of the pump body and the high temperature of the high - pressure water, the large temperature difference between hot and cold may cause the parts inside the pump to be stuck due to different coefficients of thermal expansion and contraction, resulting in component damage and affecting the use effect and service life of the pump. At the same time, during use, the temperature of the pump body is relatively high, and the efficiency and effect of its heat dissipation and cooling are low, which will also affect the use effect and service life of the pump. Moreover, after use, water stains are likely to remain inside the pump body, which is not convenient to clean. This not only easily leads to pump body corrosion, etc., but also is likely to freeze at low temperatures, affecting its use effect and service life. Summary of the Invention

[0004] The purpose of the present invention is to provide a high - pressure water pump for a road cleaning vehicle to solve the problems raised in the above - mentioned background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A high - pressure water pump for a road cleaning vehicle, including a piston pump body arranged on the road cleaning vehicle, and the piston pump body includes a base, a pump body, a motor, a water inlet pipe, and a water outlet pipe. A protective cover is fixedly connected to the top of the base, and a hot - air mechanism for drying and pre - heating the inside of the pump body is arranged on the side wall of the protective cover. A cooling mechanism for cooling the pump body is arranged on the top of the base;

[0006] The hot air mechanism includes a first heat preservation box and a second heat preservation box fixedly connected to the outer side wall of the protective cover. An electric heating module is embedded in the first heat preservation box. A heat preservation cover is fixedly sleeved on the side wall of the second heat preservation box. A first disc is slidably connected in the first heat preservation box. A second disc is slidably connected in the second heat preservation box. A cylinder is fixedly connected to the top of the first heat preservation box. The telescopic end of the cylinder is fixedly connected to a first connecting rod. The first disc and the second disc are fixedly sleeved on the side wall of the first connecting rod. A first connecting pipe is fixedly connected between the first disc and the second disc. A first one-way valve is arranged on the side wall of the first connecting pipe. A first communicating pipe is fixedly connected between the first heat preservation box and the water inlet pipe. A first solenoid valve is arranged on the side wall of the first communicating pipe. A second solenoid valve is arranged on the side wall of the water inlet pipe. A second communicating pipe is fixedly connected between the bottom of the second heat preservation box and the water outlet pipe. A third solenoid valve is arranged on the side wall of the second communicating pipe. A fourth solenoid valve is arranged on the side wall of the water outlet pipe. A drying mechanism for drying air is arranged on the side wall of the second communicating pipe.

[0007] Preferably, the cooling mechanism includes two symmetrically arranged first moving blocks. Each first moving block is connected to the top of the base through a guiding mechanism. A first spray head is fixedly inserted into the side wall of the first moving block. The end of the first spray head is fixedly connected to an L-shaped pipe. A water storage cover is fixedly connected to the inner side wall of the protective cover. A gravity plate is slidably connected in the water storage cover. A first flexible pipe is fixedly connected between the L-shaped pipe and the water storage cover. A fixed cover is fixedly inserted into the side wall of the L-shaped pipe. A sealing plate is slidably connected in the fixed cover. A first through hole is opened in the top of the sealing plate. A first spring is fixedly connected between the side wall of the sealing plate and the fixed cover. An L-shaped block is fixedly connected to the side wall of the sealing plate. A second moving block is fixedly connected to the bottom of the L-shaped block. The movement of the second moving block is pushed by a first pushing mechanism. A U-shaped frame is fixedly connected between the two second moving blocks. A second spray head is fixedly inserted into the side wall of the second moving block. An air supply mechanism for supplying air to the second spray head is arranged on the side wall of the protective cover.

[0008] Preferably, the air supply mechanism includes a first fixed cylinder fixedly inserted on one side of the protective cover, and a second fixed cylinder fixedly inserted on the side wall of the protective cover away from the first fixed cylinder. An air inlet hole is formed at the end of the first fixed cylinder, and a second one-way valve is arranged in the air inlet hole. A gas supply pipe is fixedly connected to the side wall of the first fixed cylinder, and a third one-way valve is arranged in the gas supply pipe. A U-shaped second hose is fixedly connected between the second nozzle and the gas supply pipe. A first piston is slidably connected in the first fixed cylinder, a second piston is slidably connected in the second fixed cylinder, and a second connecting rod is fixedly connected between the first piston and the second piston. The movement of the second connecting rod is pushed by a second pushing mechanism. A suction pipe is fixedly connected to the bottom of the second fixed cylinder, and a fourth one-way valve is arranged in the suction pipe. A discharge pipe is fixedly connected to the end of the second fixed cylinder, and a fifth one-way valve is arranged in the discharge pipe.

[0009] Preferably, the drying mechanism includes a mounting cover fixedly inserted on the side wall of the second communication pipe. A moving frame is connected in the mounting cover through a moving mechanism. A plurality of second through holes arranged in an array are formed at the top and bottom of the moving frame, and a desiccant is filled in the moving frame. An air outlet pipe is fixedly inserted on the side wall of the mounting cover, and a spiral pipe is fixedly connected in the heat preservation cover. The upper end of the spiral pipe is fixed to the lower end of the discharge pipe, and a second connecting pipe is fixedly connected between the mounting cover and the lower end of the spiral pipe.

[0010] Preferably, the guiding mechanism includes two symmetrically arranged first fixed blocks fixedly connected to the top of the base, and two symmetrically arranged fixed rods fixedly connected to the opposite side walls of the two first fixed blocks. Two symmetrically arranged mounting holes are formed in the side wall of the first moving block, and a rubber ring is fixedly inserted in each mounting hole, and the rubber ring is sleeved on the side wall of the fixed rod.

[0011] Preferably, the first pushing mechanism includes a first support plate fixedly connected to the top of the base. A rotating plate is rotatably connected to the side wall of the first support plate through a first rotating shaft. A first sliding groove and a second sliding groove are formed in the side wall of the rotating plate. A support block is fixedly sleeved on the side wall of the second connecting rod, and a connecting plate is fixedly connected to the side wall of the support block. A first pushing pin is fixedly connected to the side wall of the connecting plate, and the first pushing pin is inserted into the first sliding groove. A second pushing pin is fixedly connected to the side wall of the second moving block, and the second pushing pin is inserted into the second sliding groove.

[0012] Preferably, the moving mechanism includes a second fixing block fixedly connected to the side wall of the mounting cover, and two symmetrically arranged first sleeves are fixedly connected to the side wall of the second fixing block. A first sleeve rod is inserted into each of the first sleeves, and the other end of the first sleeve rod is fixedly connected to the side wall of the moving frame. A second spring is sleeved on the side wall of each of the first sleeves. A first electromagnet is fixedly connected to the side wall of the second fixing block, and a first iron block is fixedly connected to the side wall of the moving frame.

[0013] Preferably, the second pushing mechanism includes a second support plate fixedly connected to the top of the base, and a cam is rotatably connected to the side wall of the second support plate through a rotating rod. The top of the support block is connected to a moving plate through a lifting mechanism, and a first pushing block and a second pushing block are fixedly connected to the side wall of the moving plate. The rotation of the rotating rod is driven by a driving mechanism.

[0014] Preferably, the lifting mechanism includes a first connecting block fixedly connected to the side wall of the support block, and two symmetrically arranged second sleeves are fixedly connected to the top of the first connecting block. A second sleeve rod is inserted into each of the second sleeves, and the upper end of the second sleeve rod is fixedly connected to a second connecting block. The second connecting block is fixedly connected to the side wall of the moving plate, and a third spring is sleeved on the side wall of each of the second sleeves. A second electromagnet is fixedly connected to the top of the first connecting block, and a second iron block is fixedly connected to the bottom of the second connecting block.

[0015] Preferably, the driving mechanism includes an installation box fixedly inserted into the side wall of the water inlet pipe. A rotating fan is rotatably connected to the installation box through a second rotating shaft, and one end of the second rotating shaft is fixedly connected to one end of the rotating rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1)The high-pressure water pump of this road cleaning vehicle, by setting up a drying mechanism, etc., when in use, after use, close the second solenoid valve and the fourth solenoid valve, open the first solenoid valve and the second connecting pipe, then, start the cylinder, drive the first disc and the second disc to move upward through the first connecting rod. At this time, the high-temperature air in the first heat preservation box can be squeezed, and at the same time, it is blown into the pump body through the first connecting pipe and the water inlet pipe. At the same time, when the second disc moves upward, the air in the pump body can be pumped into the second heat preservation box through the second connecting pipe, so as to facilitate the drying treatment of the water stains in the pump body, and the moisture can be dried and absorbed by the drying mechanism. This can not only avoid rust and other problems in the pump body caused by water stains, but also play an anti-freezing effect at low temperatures, ensuring its use effect and service life. When the cylinder drives the first connecting rod to move downward, it can drive the first disc and the second disc to move downward. At this time, the air in the second heat preservation box can be pumped into the first heat preservation box for heating treatment to ensure normal subsequent use. Similarly, before use, high-temperature air can also be blown into the pump body to preheat the pump body, ensuring its use effect and service life.

[0018] (2) The high-pressure water pump for road cleaning vehicles is provided with a cooling mechanism, etc. When the temperature of the pump body surface is high, the second electromagnet is de-energized. At this time, the second iron block is no longer adsorbed, and the second connecting block can move upward under the action of the third spring. At the same time, the first push block and the second push block are driven upward by the moving plate. When water passes through the water inlet pipe, it can enter the installation box and impact the surface of the rotating fan, thereby causing the rotating fan and the second rotating shaft to rotate. When the second rotating shaft rotates, the cam can be driven to rotate through the rotating rod. When the tip of the cam is aligned with the first push block, the rotating fan and the second rotating shaft can rotate. When the side wall of the moving block abuts, it can push the second connecting rod to move in the direction away from the cam. When the tip of the cam abuts against the side wall of the second pushing block, it can push the second connecting rod to move in the direction away from the cam. This reciprocating motion can make the second connecting rod move back and forth. When the second connecting rod moves back and forth, it can drive the first pushing pin to slide in the first sliding groove through the connecting plate, thereby pushing the rotating plate to rotate along the first rotating shaft, so that the second pushing pin slides along the second sliding groove, and then pushes the second moving block to reciprocate. When the second moving block approaches the first moving block, When the second moving block moves in the direction of the fixed rod, the sealing plate can be pushed to move into the fixed cover through the L-shaped block. At the same time, the first spring is compressed so that the first through hole coincides with the L-shaped tube. When the second moving block continues to move, the first moving block can be pushed to slide along the fixed rod through the L-shaped tube. Moreover, when the second connecting rod reciprocates, the first piston and the second piston can be driven to reciprocate. When the first piston reciprocates in the first fixed cylinder, the external air can be drawn into the first fixed cylinder through the air inlet hole, and after being discharged through the air supply pipe, it enters the second nozzle through the second hose and is sprayed out. , so that the surface of the pump body can be blown and cooled. At the same time, under the action of the gravity plate, the water in the water storage cover can be squeezed, and at the same time, it can pass through the first hose and the L-shaped tube and then be sprayed on the surface of the pump body through the first nozzle, so that the efficiency of blowing cooling is higher and the effect is better. When the second moving block moves and resets, the sealing plate can be driven to move and reset by the L-shaped block, so that the first through hole and the L-shaped tube are staggered. At this time, the sealing plate can be used to block and seal the L-shaped tube, and then the first moving block is driven to move and reset along the fixed rod by the L-shaped tube, so that the water utilization effect is better.

[0019] (3)The high-pressure water pump of this road cleaning vehicle can, by setting up a drying mechanism, etc., make the air discharged through the second connecting pipe enter the moving frame and be dried under the action of the desiccant. After drying, the air enters the second heat preservation box. At the same time, the hot air discharged through the discharge pipe can enter the spiral pipe, so as to preheat the air in the second heat preservation box. This can not only improve the heating efficiency of the electric heating module for the air, but also recycle and reuse the waste heat to avoid waste. Then it enters the installation cover and is discharged through the air outlet pipe. And when the pump body is not dried or preheated, there is no air flow in the second connecting pipe. At this time, the first electromagnet is energized. After the first electromagnet is energized, it attracts the first iron block, making the moving frame move towards the direction close to the second fixed block. At the same time, the second spring is compressed. At this time, the hot air in the second connecting pipe can enter the moving frame to dry the desiccant in the moving frame, and then be discharged through the air outlet pipe, so as to automatically dry the desiccant in the moving frame and ensure its subsequent water absorption efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the use state of the present invention;

[0021] Figure 2 is a schematic diagram of the use state of the present invention from another perspective;

[0022] Figure 3 is a schematic diagram of the internal structure of the protective cover in the present invention;

[0023] Figure 4 is a schematic diagram of the internal structure of the protective cover in the present invention from another perspective;

[0024] Figure 5 is Figure 3 an enlarged schematic diagram of part A in

[0025] Figure 6 is Figure 3 an enlarged schematic diagram of part B in

[0026] Figure 7 is Figure 4 an enlarged schematic diagram of part C in

[0027] Figure 8 is Figure 4 an enlarged schematic diagram of part D in

[0028] Figure 9 is Figure 6 an enlarged schematic diagram of part E in

[0029] Figure 10 is Figure 7 an enlarged schematic diagram of part F in

[0030] Figure 11 is Figure 8 the enlarged structural schematic diagram at position G in

[0031] In the figure: 101, base; 102, pump body; 103, motor; 104, water inlet pipe; 105, water outlet pipe; 201, first fixed cylinder; 202, air inlet hole; 203, air supply pipe; 204, second hose; 205, first piston; 206, second connecting rod; 207, second fixed cylinder; 208, second piston; 209, air extraction pipe; 210, discharge pipe; 301, first insulation box; 302, electric heating module; 303, second insulation box; 304, insulation cover; 305, first disc; 306, second disc; 307, cylinder; 308, first connecting rod; 309, first connecting pipe; 310, first check valve; 311, first communicating pipe; 312, first solenoid valve; 313, second solenoid valve; 314, second communicating pipe; 315, third solenoid valve; 316, fourth solenoid valve; 401, mounting cover; 402, moving frame; 403, second through hole; 405, spiral pipe; 406, second connecting pipe; 407, air outlet pipe; 501, support block; 502, connecting plate; 503, first support plate; 504, first rotating shaft; 505, rotating plate; 506, first chute; 507, second chute; 508, first push pin; 509, second push pin; 601, first fixed block; 602, fixed rod; 603, mounting hole; 604, rubber ring; 701, second fixed block; 702, first sleeve; 703, first rod sleeve; 704, second spring; 705, first electromagnet; 706, first iron block; 801, second support plate; 802, rotating rod; 803, cam; 804, moving plate; 805, first push block; 806, second push block; 901, first connecting block; 902, second sleeve; 903, second rod sleeve; 904, second connecting block; 905, second electromagnet; 906, second iron block; 907, third spring; 1001, mounting box; 1002, second rotating shaft; 1003, rotating fan; 11, protective cover; 1201, first moving block; 1202, first spray head; 1203, L-shaped pipe; 1204, water storage cover; 1205, gravity plate; 1206, first hose; 1207, second moving block; 1208, sealing plate; 1209, first through hole; 1210, first spring; 1211, L-shaped block; 1212, second spray head; 1213, fixed cover; 1214, U-shaped frame. Specific embodiments

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-11 , the present invention provides a technical solution: a high-pressure water pump for a road cleaning vehicle, including a plunger pump body provided on the road cleaning vehicle, and the plunger pump body includes a base 101, a pump body 102, a motor 103, a water inlet pipe 104 and a water outlet pipe 105. A protective cover 11 is fixedly connected to the top of the base 101, and a hot air mechanism for drying and preheating the inside of the pump body 102 is provided on the side wall of the protective cover 11. A cooling mechanism for cooling the pump body 102 is provided on the top of the base 101;

[0034] The hot air mechanism includes a first heat preservation box 301 and a second heat preservation box 303 fixedly connected to the outer side wall of the protective cover 11. An electric heating module 302 is embedded in the first heat preservation box 301. A heat preservation cover 304 is fixedly sleeved on the side wall of the second heat preservation box 303. A first disc 305 is slidably connected in the first heat preservation box 301, and a second disc 306 is slidably connected in the second heat preservation box 303. The top of the first heat preservation box 301 is fixedly connected with a cylinder 307. The telescopic end of the cylinder 307 is fixedly connected with a first connecting rod 308. The first disc 305 and the second disc 306 are fixedly sleeved on the side wall of the first connecting rod 308. A first connecting pipe 309 is fixedly connected between the first disc 305 and the second disc 306. A first one-way valve 310 is arranged on the side wall of the first connecting pipe 309. The conduction direction of the first one-way valve 310 is from the second heat preservation box 303 to the first heat preservation box 301. A first communicating pipe 311 is fixedly connected between the first heat preservation box 301 and the water inlet pipe 104. A first electromagnetic valve 312 is arranged on the side wall of the first communicating pipe 311. A second electromagnetic valve 313 is arranged on the side wall of the water inlet pipe 104. A second communicating pipe 314 is fixedly connected between the bottom of the second heat preservation box 303 and the water outlet pipe 105. A third electromagnetic valve 315 is arranged on the side wall of the second communicating pipe 314. A fourth electromagnetic valve 316 is arranged on the side wall of the water outlet pipe 105. A drying mechanism for drying air is arranged on the side wall of the second communicating pipe 314. Before use, it is convenient to preheat the inside of the pump body 102. During use, it is convenient to spray water on the surface of the pump body 102 and blow air for cooling. After use, it is convenient to blow high-temperature air into the pump body 102, which can dry the water stains. At the same time, the desiccant can be used to absorb moisture, which can not only prevent rust and other problems caused by water stains in the pump body 102, but also play an anti-freezing effect at low temperatures, ensuring its use effect and service life. Moreover, the waste heat of the air can be recycled and reused, and the desiccant can be automatically dried, avoiding heat waste while ensuring the subsequent moisture absorption efficiency and effect of the desiccant.

[0035] The cooling mechanism includes two symmetrically arranged first moving blocks 1201, and each first moving block 1201 is connected to the top of the base 101 through a guiding mechanism. A first spray head 1202 is fixedly inserted into the side wall of the first moving block 1201, and an L-shaped pipe 1203 is fixedly connected to the end of the first spray head 1202. A water storage cover 1204 is fixedly connected to the inner side wall of the protective cover 11, and a gravity plate 1205 is slidably connected in the water storage cover 1204. A first hose 1206 is fixedly connected between the L-shaped pipe 1203 and the water storage cover 1204. A fixed cover 1213 is fixedly inserted into the side wall of the L-shaped pipe 1203, a sealing plate 1208 is slidably connected in the fixed cover 1213, and a first through hole 1209 is opened at the top of the sealing plate 1208. A first spring 1210 is fixedly connected between the side walls of the sealing plate 1208 and the fixed cover 1213, and an L-shaped block 1211 is fixedly connected to the side wall of the sealing plate 1208. A second moving block 1207 is fixedly connected to the bottom of the L-shaped block 1211, and the movement of the second moving block 1207 is pushed by a first pushing mechanism. A U-shaped frame 1214 is fixedly connected between the two second moving blocks 1207. A second spray head 1212 is fixedly inserted into the side wall of the second moving block 1207, and an air supply mechanism for supplying air to the second spray head 1212 is arranged on the side wall of the protective cover 11. When the temperature on the surface of the pump body 102 is relatively high, the second moving block 1207 is pushed to move reciprocally by the first pushing mechanism. When the second moving block 1207 moves in the direction close to the first moving block 1201, the sealing plate 1208 can be pushed into the fixed cover 1213 by the L-shaped block 1211. At the same time, the first spring 1210 is compressed, so that the first through hole 1209 coincides with the L-shaped pipe 1203. When the second moving block 1207 continues to move, the first moving block 1201 can be pushed to move through the L-shaped pipe 1203. At the same time, the second spray head 1212 sprays on the surface of the pump body 102 through the air supply mechanism to perform a cooling operation on it. Moreover, under the action of the gravity plate 1205, the water in the water storage cover 1204 can be extruded, and at the same time, it can be sprayed on the surface of the pump body 102 through the first hose 1206, the L-shaped pipe 1203 and then the first spray head 1202, so that the efficiency and effect of blowing and cooling are higher and better. When the second moving block 1207 moves back to its original position, the sealing plate 1208 can be driven by the L-shaped block 1211 to move back to its original position, so that the first through hole 1209 is staggered from the L-shaped pipe 1203. At this time, the L-shaped pipe 1203 can be blocked and sealed by the sealing plate 1208. Then, the first moving block 1201 is driven by the L-shaped pipe 1203 to move back along the fixed rod 602, so that the utilization effect of water is better.

[0036] The air supply mechanism includes a first fixed cylinder 201 fixedly inserted on one side of the protective cover 11. A second fixed cylinder 207 is fixedly inserted on the side wall of the protective cover 11 away from the first fixed cylinder 201. An air inlet hole 202 is provided at the end of the first fixed cylinder 201. A second one-way valve is arranged in the air inlet hole 202, and the conduction direction of the second one-way valve is from the outside to the inside of the first fixed cylinder 201. A gas supply pipe 203 is fixedly connected to the side wall of the first fixed cylinder 201, and a third one-way valve is arranged in the gas supply pipe 203. The conduction direction of the third one-way valve is from the first fixed cylinder 201 to the second hose 204. A U-shaped second hose 204 is fixedly connected between the second spray head 1212 and the gas supply pipe 203. A first piston 205 is slidably connected in the first fixed cylinder 201, and a second piston 208 is slidably connected in the second fixed cylinder 207. A second connecting rod 206 is fixedly connected between the first piston 205 and the second piston 208. The movement of the second connecting rod 206 is pushed by a second pushing mechanism. A suction pipe 209 is fixedly connected to the bottom of the second fixed cylinder 207, and a fourth one-way valve is arranged in the suction pipe 209. The conduction direction of the fourth one-way valve is from the inside of the protective cover 11 to the inside of the second fixed cylinder 207. A discharge pipe 210 is fixedly connected to the end of the second fixed cylinder 207, and a fifth one-way valve is arranged in the discharge pipe 210. The conduction direction of the fifth one-way valve is from the second fixed cylinder 207 to the discharge pipe 210. By pushing the second connecting rod 206 to move reciprocally through the second pushing mechanism, when the second connecting rod 206 moves reciprocally, it can drive the first piston 205 and the second piston 208 to move reciprocally. When the first piston 205 moves reciprocally in the first fixed cylinder 201, it can suck the external air into the first fixed cylinder 201 through the air inlet hole 202, discharge it through the gas supply pipe 203, and then enter the second spray head 1212 through the second hose 204 and be sprayed out.

[0037] The drying mechanism includes a mounting cover 401 fixedly inserted into the side wall of the second connecting pipe 314. A moving frame 402 is connected in the mounting cover 401 through a moving mechanism. A plurality of second through holes 403 arranged in an array are formed at the top and bottom of the moving frame 402, and a desiccant is filled in the moving frame 402. An air outlet pipe 407 is fixedly inserted into the side wall of the mounting cover 401. A spiral pipe 405 is fixedly connected in the heat preservation cover 304. The upper end of the spiral pipe 405 is fixed to the lower end of the discharge pipe 210. A second connecting pipe 406 is fixedly connected between the lower ends of the mounting cover 401 and the spiral pipe 405. The air discharged through the second connecting pipe 314 can enter the moving frame 402 and is dried under the action of the desiccant. The dried air enters the second heat preservation box 303. At the same time, the hot air discharged through the discharge pipe 210 can enter the spiral pipe 405, so as to preheat the air in the second heat preservation box 303. This can not only improve the heating efficiency of the electric heating module 302 for the air, but also recycle and reuse the waste heat to avoid waste. Then, it enters the mounting cover 401 and is discharged through the air outlet pipe 407. Moreover, when the pump body 102 is not dried or preheated, there is no air flow in the second connecting pipe 314. At this time, the moving frame 402 is driven to move through the moving mechanism. At this time, the hot air in the second connecting pipe 406 can enter the moving frame 402 to dry the desiccant in the moving frame 402, and then is discharged through the air outlet pipe 407, so as to automatically dry the desiccant in the moving frame 402 and ensure its subsequent water absorption efficiency and effect.

[0038] The guiding mechanism includes two symmetrically arranged first fixing blocks 601 fixedly connected to the top of the base 101. Two symmetrically arranged fixing rods 602 are fixedly connected to the opposite side walls of the two first fixing blocks 601. Two symmetrically arranged mounting holes 603 are formed in the side wall of the first moving block 1201. A rubber ring 604 is fixedly inserted into each mounting hole 603, and the rubber ring 604 is sleeved on the side wall of the fixing rod 602 to play a role in guiding and resetting the movement of the first moving block 1201. Moreover, under the action of the rubber ring 604, the first moving block 1201 will move along the side wall of the fixing rod 602 only when it is pushed by an external force.

[0039] The first driving mechanism includes a first support plate 503 fixedly connected to the top of the base 101. A rotating plate 505 is rotatably connected to the side wall of the first support plate 503 through a first rotating shaft 504. A first sliding groove 506 and a second sliding groove 507 are formed in the side wall of the rotating plate 505. A support block 501 is fixedly sleeved on the side wall of the second connecting rod 206. A connecting plate 502 is fixedly connected to the side wall of the support block 501. A first driving pin 508 is fixedly connected to the side wall of the connecting plate 502, and the first driving pin 508 is inserted into the first sliding groove 506. A second driving pin 509 is fixedly connected to the side wall of the second moving block 1207, and the second driving pin 509 is inserted into the second sliding groove 507. When the second connecting rod 206 moves reciprocally, it can drive the first driving pin 508 to slide in the first sliding groove 506 through the connecting plate 502, thereby pushing the rotating plate 505 to rotate along the first rotating shaft 504, so that the second driving pin 509 slides along the second sliding groove 507, and further drives the second moving block 1207 to move reciprocally.

[0040] The moving mechanism includes a second fixing block 701 fixedly connected to the side wall of the mounting cover 401. Two symmetrically arranged first sleeves 702 are fixedly connected to the side wall of the second fixing block 701. A first sleeve rod 703 is inserted into each first sleeve 702, and the other end of the first sleeve rod 703 is fixedly connected to the side wall of the moving frame 402. A second spring 704 is sleeved on the side wall of each first sleeve 702. A first electromagnet 705 is fixedly connected to the side wall of the second fixing block 701, and a first iron block 706 is fixedly connected to the side wall of the moving frame 402. When the first electromagnet 705 is powered on, the first electromagnet 705 attracts the first iron block 706 after being powered on, so that the moving frame 402 moves towards the direction close to the second fixing block 701. At the same time, the second spring 704 is compressed.

[0041] The second driving mechanism includes a second support plate 801 fixedly connected to the top of the base 101. A cam 803 is rotatably connected to the side wall of the second support plate 801 through a rotating rod 802. The top of the support block 501 is connected to a moving plate 804 through a lifting mechanism. A first pushing block 805 and a second pushing block 806 are fixedly connected to the side wall of the moving plate 804. The rotation of the rotating rod 802 is driven by a driving mechanism. When the temperature on the surface of the pump body 102 is relatively high, the lifting mechanism drives the moving plate 804 to move upward. At the same time, the first pushing block 805 and the second pushing block 806 are driven to move upward. Moreover, the driving mechanism drives the rotating rod 802 and the cam 803 to rotate. When the tip of the cam 803 abuts against the side wall of the first pushing block 805, it can push the second connecting rod 206 to move away from the cam 803. When the tip of the cam 803 abuts against the side wall of the second pushing block 806, it can push the second connecting rod 206 to move away from the cam 803. Repeating this process can make the second connecting rod 206 move back and forth.

[0042] The lifting mechanism includes a first connecting block 901 fixedly connected to the side wall of the support block 501. Two symmetrically arranged second sleeves 902 are fixedly connected to the top of the first connecting block 901. A second sleeve rod 903 is inserted into each second sleeve 902. The upper end of the second sleeve rod 903 is fixedly connected to a second connecting block 904. The second connecting block 904 is fixedly connected to the side wall of the moving plate 804. A third spring 907 is sleeved on the side wall of each second sleeve 902. A second electromagnet 905 is fixedly connected to the top of the first connecting block 901. A second iron block 906 is fixedly connected to the bottom of the second connecting block 904. When the temperature on the surface of the pump body 102 is relatively high, the second electromagnet 905 is powered off. At this time, the second iron block 906 is no longer adsorbed. The second connecting block 904 can move upward under the action of the third spring 907. At the same time, the first pushing block 805 and the second pushing block 806 are driven to move upward through the moving plate 804.

[0043] The driving mechanism includes an installation box 1001 fixedly inserted into the side wall of the water inlet pipe 104. A rotating fan 1003 is rotatably connected to the installation box 1001 through a second rotating shaft 1002. One end of the second rotating shaft 1002 is fixedly connected to one end of the rotating rod 802. When water passes through the water inlet pipe 104, it can enter the installation box 1001 and impact on the surface of the rotating fan 1003, thereby causing the rotating fan 1003 and the second rotating shaft 1002 to rotate. When the second rotating shaft 1002 rotates, it can drive the cam 803 to rotate through the rotating rod 802.

[0044] Working principle: During use, after use, close the second solenoid valve 313 and the fourth solenoid valve 316, and open the first solenoid valve 312 and the second connecting pipe 314. Then, start the cylinder 307, and drive the first disc 305 and the second disc 306 to move upward through the first connecting rod 308. At this time, the high-temperature air in the first insulation box 301 can be squeezed, and at the same time, it is blown into the pump body 102 through the first connecting pipe 311 and the water inlet pipe 104. At the same time, when the second disc 306 moves upward, the air in the pump body 102 can be pumped into the second insulation box 303 through the second connecting pipe 314, so as to facilitate the drying treatment of the water stains in the pump body 102, and the moisture can be dried and absorbed by the drying mechanism. This can not only prevent rust and other problems in the pump body 102 due to water stains, but also play an anti-freezing effect at low temperatures, ensuring its use effect and service life. When the cylinder 307 drives the first connecting rod 308 to move downward, it can drive the first disc 305 and the second disc 306 to move downward. At this time, the air in the second insulation box 303 can be pumped into the first insulation box 301 for heating treatment to ensure normal subsequent use. Similarly, before use, high-temperature air can also be blown into the pump body 102 to preheat the pump body 102, ensuring its use effect and service life.

[0045] When the temperature on the surface of the pump body 102 is relatively high, cut off the power supply of the second electromagnet 905. At this time, the second iron block 906 is no longer adsorbed, and the second connecting block 904 can move upward under the action of the third spring 907. At the same time, drive the first push block 805 and the second push block 806 to move upward through the moving plate 804. And when water passes through the water inlet pipe 104, it can enter the installation box 1001 and impact on the surface of the rotating fan 1003, so that the rotating fan 1003 and the second rotating shaft 1002 rotate. When the second rotating shaft 1002 rotates, it can drive the cam 803 to rotate through the rotating rod 802. When the tip of the cam 803 abuts against the side wall of the first push block 805, it can push the second connecting rod 206 to move away from the cam 803. When the tip of the cam 803 abuts against the side wall of the second push block 806, it can also push the second connecting rod 206 to move away from the cam 803. Repeating like this, the second connecting rod 206 can move back and forth.

[0046] When the second connecting rod 206 moves back and forth, the first pushing pin 508 can be driven to slide in the first sliding groove 506 through the connecting plate 502, thereby pushing the rotating plate 505 to rotate along the first rotating shaft 504, so that the second pushing pin 509 slides along the second sliding groove 507, and then pushes the second moving block 1207 to reciprocate. When the second moving block 1207 moves toward the direction close to the first moving block 1201, the sealing plate 1208 can be pushed to move into the fixed cover 1213 through the L-shaped block 1211. At the same time, the first spring 1210 is compressed, so that the first through hole 1209 coincides with the L-shaped tube 1203. When the second moving block 1207 continues to move, it can push the L-shaped tube 1203 The first moving block 1201 slides along the fixed rod 602, and when the second connecting rod 206 moves back and forth, it can drive the first piston 205 and the second piston 208 to move back and forth. When the first piston 205 moves back and forth in the first fixed cylinder 201, the external air can be drawn into the first fixed cylinder 201 through the air inlet hole 202, and after being discharged through the air supply pipe 203, it enters the second nozzle 1212 through the second hose 204 and is sprayed out, so that the surface of the pump body 102 can be blown and cooled, and when the second piston 208 moves back and forth in the second fixed cylinder 207, the hot air in the protective cover 11 can be absorbed through the exhaust pipe 209 and discharged through the exhaust pipe 210.

[0047] At the same time, under the action of the gravity plate 1205, the water in the water storage cover 1204 can be squeezed, and at the same time, can be sprayed on the surface of the pump body 102 through the first hose 1206 and the L-shaped tube 1203 and then through the first nozzle 1202, so that the air blowing cooling efficiency is higher and the effect is better. When the second movable block 1207 moves and resets, the sealing plate 1208 can be driven to move and reset through the L-shaped block 1211, so that the first through hole 1209 and the L-shaped tube 1203 are staggered. At this time, the sealing plate 1208 can be used to block and seal the L-shaped tube 1203, and then, the first movable block 1201 is driven by the L-shaped tube 1203 to move and reset along the fixed rod 602, so that the water utilization effect is better.

[0048] Moreover, the air discharged through the second connecting pipe 314 can enter the moving frame 402 and be dried under the action of the desiccant. After drying, the air enters the second heat preservation box 303. At the same time, the hot air discharged through the discharge pipe 210 can enter the spiral pipe 405, so as to preheat the air in the second heat preservation box 303. This can not only improve the heating efficiency of the electric heating module 302 for the air, but also recycle and reuse the waste heat to avoid waste. Then, it enters the installation cover 401 and is discharged through the air outlet pipe 407. Moreover, when the pump body 102 is not dried or preheated, there is no air flow in the second connecting pipe 314. At this time, the first electromagnet 705 is energized. After the first electromagnet 705 is energized, it attracts the first iron block 706, causing the moving frame 402 to move towards the direction close to the second fixed block 701. At the same time, the second spring 704 is compressed. At this time, the hot air in the second connecting pipe 406 can enter the moving frame 402 to dry the desiccant in the moving frame 402, and then is discharged through the air outlet pipe 407, so as to automatically dry the desiccant in the moving frame 402 and ensure its subsequent water absorption efficiency and effect.

[0049] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0050] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those skilled in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A high-pressure water pump for a road cleaning vehicle, comprising a plunger pump body arranged on the road cleaning vehicle, wherein the plunger pump body comprises a base (101), a pump body (102), a motor (103), a water inlet pipe (104) and a water outlet pipe (105), characterized in that: The top of the base (101) is fixedly connected to a protective cover (11), and a side wall of the protective cover (11) is provided with a hot air mechanism for drying and preheating the inside of the pump body (102), and the top of the base (101) is provided with a cooling mechanism for cooling the pump body (102); The hot air mechanism comprises a first heat preservation box (301) and a second heat preservation box (303) fixedly connected to the outer wall of the protective cover (11), and the first heat preservation box (301) is embedded with an electric heating module (302), the side wall of the second heat preservation box (303) is fixedly sleeved with a heat preservation cover (304), and a first disc (305) is slidably connected to the first heat preservation box (301), and a second disc (306) is slidably connected to the second heat preservation box (303), and a cylinder (307) is fixedly connected to the top of the first heat preservation box (301), and a first connecting rod (308) is fixedly connected to the telescopic end of the cylinder (307), and the first disc (305) and the second disc (306) are fixedly sleeved on the side wall of the first connecting rod (308), and the first disc (305) and the second disc (306) are fixedly sleeved on the side wall of the first connecting rod (308), and the first disc (305) and the second disc (306) are fixedly sleeved on the side wall of the first connecting rod (308). 6), a first connecting pipe (309) is fixedly connected between the first heat preservation box (301) and the water inlet pipe (104), and a first one-way valve (310) is arranged on the side wall of the first connecting pipe (309); a first connecting pipe (311) is fixedly connected between the first heat preservation box (301) and the water inlet pipe (104), and a first solenoid valve (312) is arranged on the side wall of the first connecting pipe (311); a second solenoid valve (313) is arranged on the side wall of the water inlet pipe (104); a second connecting pipe (314) is fixedly connected between the bottom of the second heat preservation box (303) and the water outlet pipe (105), a third solenoid valve (315) is arranged on the side wall of the second connecting pipe (314), and a fourth solenoid valve (316) is arranged on the side wall of the water outlet pipe (105); and a drying mechanism for drying air is arranged on the side wall of the second connecting pipe (314); The cooling mechanism comprises two symmetrically arranged first moving blocks (1201), and each of the first moving blocks (1201) is connected to the top of the base (101) via a guide mechanism; a first nozzle (1202) is fixedly inserted into the side wall of the first moving block (1201), and an L-shaped tube (1203) is fixedly connected to the end of the first nozzle (1202); a water storage cover (1204) is fixedly connected to the inner side wall of the protective cover (11), and a gravity plate (1205) is slidably connected inside the water storage cover (1204); a first hose (1206) is fixedly connected between the L-shaped tube (1203) and the water storage cover (1204), and a fixed cover (1213) is fixedly inserted into the side wall of the L-shaped tube (1203), and a sealing plate is slidably connected inside the fixed cover (1213). (1208), and a first through hole (1209) is provided on the top of the sealing plate (1208), a first spring (1210) is fixedly connected between the sealing plate (1208) and the side wall of the fixed cover (1213), and an L-shaped block (1211) is fixedly connected to the side wall of the sealing plate (1208), a second movable block (1207) is fixedly connected to the bottom of the L-shaped block (1211), and the movement of the second movable block (1207) is driven by a first driving mechanism, a U-shaped frame (1214) is fixedly connected between the two second movable blocks (1207), a second nozzle (1212) is fixedly inserted into the side wall of the second movable block (1207), and an air supply mechanism for supplying air to the second nozzle (1212) is provided on the side wall of the protective cover (11).

2. A high-pressure water pump for a road cleaning vehicle according to claim 1, characterized in that: The air supply mechanism comprises a first fixed cylinder (201) fixedly inserted on one side of the protective cover (11), and a second fixed cylinder (207) fixedly inserted on the side wall of the protective cover (11) away from the first fixed cylinder (201), an air inlet hole (202) is opened at the end of the first fixed cylinder (201), a second one-way valve is arranged in the air inlet hole (202), an air supply pipe (203) is fixedly connected to the side wall of the first fixed cylinder (201), and a third one-way valve is arranged in the air supply pipe (203), a second hose (204) arranged in a U shape is fixedly connected between the second nozzle (1212) and the air supply pipe (203), and the first A first piston (205) is slidably connected inside the fixed cylinder (201), a second piston (208) is slidably connected inside the second fixed cylinder (207), and a second connecting rod (206) is fixedly connected between the first piston (205) and the second piston (208), and the movement of the second connecting rod (206) is driven by a second driving mechanism, an exhaust pipe (209) is fixedly connected to the bottom of the second fixed cylinder (207), and a fourth one-way valve is arranged in the exhaust pipe (209), and an exhaust pipe (210) is fixedly connected to the end of the second fixed cylinder (207), and a fifth one-way valve is arranged in the exhaust pipe (210).

3. A high-pressure water pump for a road cleaning vehicle according to claim 2, characterized in that: The drying mechanism comprises a mounting cover (401) fixedly inserted into a side wall of the second connecting pipe (314), and a movable frame (402) is connected to the mounting cover (401) via a movable mechanism, a plurality of second through holes (403) arranged in an array are provided on the top and bottom of the movable frame (402), and the movable frame (402) is filled with a desiccant, an air outlet pipe (407) is fixedly inserted into the side wall of the mounting cover (401), and a spiral tube (405) is fixedly connected to the heat-insulating cover (304), the upper end of the spiral tube (405) is fixed to the lower end of the discharge pipe (210), and a second connecting tube (406) is fixedly connected between the mounting cover (401) and the lower end of the spiral tube (405).

4. A high-pressure water pump for a road cleaning vehicle according to claim 1, characterized in that: The guide mechanism comprises two symmetrically arranged first fixed blocks (601) fixedly connected to the top of the base (101), and two symmetrically arranged fixed rods (602) are fixedly connected to opposite side walls of the two first fixed blocks (601), and the side wall of the first movable block (1201) is provided with two symmetrically arranged mounting holes (603), and a rubber ring (604) is fixedly inserted in each of the mounting holes (603), and the rubber ring (604) is sleeved on the side wall of the fixing rod (602).

5. A high-pressure water pump for a road cleaning vehicle according to claim 2, characterized in that: The first pushing mechanism comprises a first supporting plate (503) fixedly connected to the top of the base (101), and the side wall of the first supporting plate (503) is rotatably connected to a rotating plate (505) via a first rotating shaft (504), the side wall of the rotating plate (505) is provided with a first sliding groove (506) and a second sliding groove (507), and the side wall of the second connecting rod (206) is fixedly sleeved with a supporting block (501), and the side wall of the supporting block (501) is fixedly connected to a connecting plate (502), the side wall of the connecting plate (502) is fixedly connected to a first pushing pin (508), and the first pushing pin (508) is inserted in the first sliding groove (506), and the side wall of the second moving block (1207) is fixedly connected to a second pushing pin (509), and the second pushing pin (509) is inserted in the second sliding groove (507).

6. A high-pressure water pump for a road cleaning vehicle according to claim 3, characterized in that: The moving mechanism comprises a second fixed block (701) fixedly connected to the side wall of the mounting cover (401), and the side wall of the second fixed block (701) is fixedly connected to two symmetrically arranged first sleeves (702), each of the first sleeves (702) is inserted with a first sleeve rod (703), and the other end of the first sleeve rod (703) is fixed to the side wall of the moving frame (402), and the side wall of each of the first sleeves (702) is sleeved with a second spring (704), the side wall of the second fixed block (701) is fixedly connected to a first electromagnet (705), and the side wall of the moving frame (402) is fixedly connected to a first iron block (706).

7. A high-pressure water pump for a road cleaning vehicle according to claim 5, characterized in that: The second pushing mechanism comprises a second support plate (801) fixedly connected to the top of the base (101), and the side wall of the second support plate (801) is rotatably connected to a cam (803) via a rotating rod (802); the top of the support block (501) is connected to a moving plate (804) via a lifting mechanism, and the side wall of the moving plate (804) is fixedly connected to a first pushing block (805) and a second pushing block (806); the rotation of the rotating rod (802) is driven by a driving mechanism.

8. A high-pressure water pump for a road cleaning vehicle according to claim 7, characterized in that: The lifting mechanism comprises a first connecting block (901) fixedly connected to the side wall of the supporting block (501), and two symmetrically arranged second sleeves (902) are fixedly connected to the top of the first connecting block (901), a second sleeve rod (903) is inserted into each of the second sleeves (902), and the upper end of the second sleeve rod (903) is fixedly connected to the second connecting block (904), the second connecting block (904) is fixed to the side wall of the movable plate (804), and the side wall of each second sleeve (902) is sleeved with a third spring (907), the top of the first connecting block (901) is fixedly connected to the second electromagnet (905), and the bottom of the second connecting block (904) is fixedly connected to the second iron block (906).

9. A high-pressure water pump for a road cleaning vehicle according to claim 7, characterized in that: The driving mechanism comprises an installation box (1001) fixedly inserted into the side wall of the water inlet pipe (104), wherein a rotating fan (1003) is rotatably connected to the installation box (1001) via a second rotating shaft (1002), and one end of the second rotating shaft (1002) is fixed to one end of a rotating rod (802).

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