High-pressure water pump of road cleaning vehicle

Abstract

The invention discloses a high-pressure water pump of a road cleaning vehicle, and relates to the technical field of liquid variable-capacity pumps. The high-pressure water pump of the road cleaning vehicle comprises a plunger pump body arranged on the road cleaning vehicle, the plunger pump body comprises a base, a pump body, a motor, a water inlet pipe and a water outlet pipe, and a protective cover is fixedly connected to the top of the base. According to the high-pressure water pump for the road cleaning vehicle, before use, high-temperature air is conveniently blown into the pump body for preheating treatment, during use, water spraying and air blowing cooling are conveniently conducted on the surface of the pump body, after use is completed, high-temperature air is conveniently blown into the pump body for drying treatment, meanwhile, a drying agent can be used for absorbing water, and the drying effect is good. According to the drying device, the use effect and the service life of the drying device are guaranteed, waste heat of air can be recycled, the drying agent can be automatically dried, heat waste is avoided, and meanwhile the absorption efficiency and effect of the drying agent on moisture in the follow-up process are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of liquid variable displacement pumps, in particular 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 adopts a plunger pump. A positive displacement pump refers to a pump that uses the change in the volume of the pump cylinder to transport liquid. The principle of the plunger pump is to change the volume of the sealed working chamber through the reciprocating motion of the plunger in the cylinder, thereby generating a pressure difference to input the fluid. Specifically, when the plunger moves inward, the volume of the chamber decreases, and the liquid is pushed out of the pump body; when the plunger moves outward, the volume of the chamber increases, and the liquid is sucked into the pump body. By constantly repeating this reciprocating motion, the plunger pump can continuously transport liquid. The plunger pump is a type of positive displacement pump.

[0003] However, when using the existing high-pressure water pump for road cleaning vehicles, it is not convenient to preheat the pump body before use. Since the temperature of the pump body is low and the temperature of the high-pressure water is high, the difference between hot and cold is large, which may cause the parts in the pump to swell due to different thermal expansion and contraction coefficients, causing component damage, affecting the use effect and life of the pump. At the same time, when in use, the temperature of the pump body is high, and the efficiency and effect of heat dissipation and cooling are low, which will also affect the use effect and life of the pump. Moreover, after use, water stains are likely to remain inside the pump body, which is not convenient to clean. Not only is it easy to cause rust on the pump body, but it is also easy to freeze at low temperatures, affecting its use effect and life. Summary of the invention

[0004] The object 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 background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: 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, 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 preheating the inside of the pump body is arranged on the side wall of the protective cover, and a cooling mechanism for cooling the pump body is arranged on the top of the base; The hot air mechanism includes a first insulation box and a second insulation box fixedly connected to the outer wall of the protective cover, and the first insulation box is embedded with an electric heating module, the side wall of the second insulation box is fixedly sleeved with an insulation cover, and a first disc is slidably connected in the first insulation box, and a second disc is slidably connected in the second insulation box, and a cylinder is fixedly connected to the top of the first insulation box, and the telescopic end of the cylinder is fixedly connected to the first connecting rod, and 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, and a first one-way valve is arranged on the side wall of the first connecting pipe, a first connecting pipe is fixedly connected between the first insulation box and the water inlet pipe, and a first solenoid valve is arranged on the side wall of the first connecting pipe, a second solenoid valve is arranged on the side wall of the water inlet pipe, and a second connecting pipe is fixedly connected between the bottom of the second insulation box and the water outlet pipe, a third solenoid valve is arranged on the side wall of the second connecting pipe, and a fourth solenoid valve is arranged on the side wall of the water outlet pipe, and a drying mechanism for drying air is arranged on the side wall of the second connecting pipe.

[0006] Preferably, the cooling mechanism includes two symmetrically arranged first moving blocks, and each first moving block is connected to the top of the base through a guiding mechanism, a first nozzle is fixedly inserted into the side wall of the first moving block, and an L-shaped tube is fixedly connected to the end of the first nozzle, a water storage cover is fixedly connected to the inner side wall of the protective cover, and a gravity plate is slidably connected in the water storage cover, a first hose is fixedly connected between the L-shaped tube and the water storage cover, and a fixed cover is fixedly inserted into the side wall of the L-shaped tube, a sealing plate is slidably connected in the fixed cover, and a first through hole is opened in the top of the sealing plate, a first spring is fixedly connected between the sealing plate and the side wall of the fixed cover, and the side wall of the sealing plate is fixedly connected to the L-shaped block, a second moving block is fixedly connected to the bottom of the L-shaped block, and the movement of the second moving block is pushed by the first pushing mechanism, a U-shaped frame is fixedly connected between the two second moving blocks, a second nozzle is fixedly inserted into the side wall of the second moving block, and an air supply mechanism for supplying air to the second nozzle is provided on the side wall of the protective cover.

[0007] Preferably, the air supply mechanism includes a first fixed cylinder fixedly inserted on one side of the protective cover, and a second fixed cylinder is fixedly inserted on the side wall of the protective cover away from the first fixed cylinder, an air inlet hole is opened at the end of the first fixed cylinder, a second one-way valve is arranged in the air inlet hole, an air supply pipe is fixedly connected to the side wall of the first fixed cylinder, and a third one-way valve is arranged in the air supply pipe, a second U-shaped hose is fixedly connected between the second nozzle and the air 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, an exhaust pipe is fixedly connected to the bottom of the second fixed cylinder, and a fourth one-way valve is arranged in the exhaust pipe, and 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.

[0008] Preferably, the drying mechanism includes a mounting cover fixedly inserted on the side wall of the second connecting pipe, and a movable frame is connected to the mounting cover through a movable mechanism, a plurality of second through holes arranged in an array are provided on the top and bottom of the movable frame, and the movable frame is filled with desiccant, an air outlet pipe is fixedly inserted on the side wall of the mounting cover, and a spiral tube is fixedly connected to the heat-insulating cover, the upper end of the spiral tube is fixed to the lower end of the exhaust pipe, and a second connecting tube is fixedly connected between the mounting cover and the lower end of the spiral tube.

[0009] Preferably, the guide mechanism includes two symmetrically arranged first fixed blocks fixedly connected to the top of the base, and the opposite side walls of the two first fixed blocks are fixedly connected to two symmetrically arranged fixed rods, the side wall of the first movable block is provided with two symmetrically arranged mounting holes, a rubber ring is fixedly inserted in each of the mounting holes, and the rubber ring is sleeved on the side wall of the fixing rod.

[0010] Preferably, the first pushing mechanism includes a first support plate fixedly connected to the top of the base, and the side wall of the first support plate is rotatably connected to a rotating plate via a first rotating shaft, the side wall of the rotating plate is provided with a first sliding groove and a second sliding groove, and the side wall of the second connecting rod is fixedly sleeved with a support block, and the side wall of the support block is fixedly connected to the connecting plate, the side wall of the connecting plate is fixedly connected with a first pushing pin, and the first pushing pin is inserted in the first sliding groove, and the side wall of the second movable block is fixedly connected with a second pushing pin, and the second pushing pin is inserted in the second sliding groove.

[0011] Preferably, the moving mechanism includes a second fixed block fixedly connected to the side wall of the mounting cover, and the side wall of the second fixed block is fixedly connected to two symmetrically arranged first sleeves, each of the first sleeves is inserted with a first rod, and the other end of the first rod is fixed to the side wall of the moving frame, the side wall of each of the first sleeves is sleeved with a second spring, the side wall of the second fixed block is fixedly connected to a first electromagnet, and the side wall of the moving frame is fixedly connected to a first iron block.

[0012] Preferably, the second pushing mechanism includes a second support plate fixedly connected to the top of the base, and the side wall of the second support plate is rotatably connected to a cam via a rotating rod, the top of the support block is connected to a movable plate via a lifting mechanism, and the side wall of the movable plate is fixedly connected to the first pushing block and the second pushing block, and the rotation of the rotating rod is driven by a driving mechanism.

[0013] Preferably, the lifting mechanism includes a first connecting block fixedly connected to the side wall of the supporting block, and two symmetrically arranged second sleeves are fixedly connected to the top of the first connecting block, a second rod is inserted into each of the second sleeves, and the upper end of the second rod is fixedly connected to the second connecting block, the second connecting block is fixed to the side wall of the movable plate, and the side wall of each second sleeve is sleeved with a third spring, the top of the first connecting block is fixedly connected to a second electromagnet, and the bottom of the second connecting block is fixedly connected to a second iron block.

[0014] Preferably, the driving mechanism comprises an installation box fixedly inserted into the side wall of the water inlet pipe, a rotating fan is rotatably connected to the installation box via a second rotating shaft, and one end of the second rotating shaft is fixed to one end of the rotating rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) This type of high-pressure water pump for road cleaning vehicles is provided with a drying mechanism, etc., so that when it is used, after use, the second solenoid valve and the fourth solenoid valve are closed, and the first solenoid valve and the second connecting pipe are opened. Then, the cylinder is started, and the first disc and the second disc are driven 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 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 sucked into the second heat preservation box through the second connecting pipe, so that the water stains in the pump body can be removed easily. The pump body is dried and absorbed by the drying mechanism, which can not only prevent rust caused by water stains in the pump body, but also have an antifreeze effect at low temperatures, thereby ensuring the effectiveness and life of the pump. 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 insulation box can be drawn into the first insulation box for heating treatment to ensure subsequent normal use. Similarly, before use, high-temperature air can be blown into the pump body, thereby preheating the pump body to ensure the effectiveness and life of the pump.

[0016] (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.

[0017] (3) The high-pressure water pump of the road cleaning vehicle is provided with a drying mechanism, etc., so that the air discharged through the second connecting pipe can enter the movable frame and be dried under the action of the desiccant. After the drying is completed, the air enters the second heat preservation box. At the same time, the hot air discharged through the discharge pipe can enter the spiral tube, so that the air in the second heat preservation box can be preheated, which can not only improve the efficiency of the electric heating module in heating the air, but also recycle and reuse the waste heat to avoid waste. After that, the air enters the installation cover and is discharged through the air outlet pipe. In addition, when the pump body is not dried or preheated, there is no air circulation 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, so that the movable frame moves in 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 movable frame and dry the desiccant in the movable frame. After that, it is discharged through the air outlet pipe, so that the desiccant in the movable frame can be automatically dried, thereby ensuring its subsequent efficiency and effect in absorbing moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the use state of the present invention; Figure 2 A schematic diagram of the use state of the present invention from another perspective; Figure 3 It is a schematic diagram of the internal structure of the protective cover in the present invention; Figure 4 A schematic diagram of the internal structure of the protective cover in another perspective of the present invention; Figure 5 for Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 6 for Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 7 for Figure 4 Schematic diagram of the enlarged structure at C in the middle; Figure 8 for Figure 4 Schematic diagram of the enlarged structure at D in the middle; Fig. 9 for Figure 6 Schematic diagram of the enlarged structure at E in the middle; Fig.10 for Figure 7 The enlarged structural diagram at F in the middle; Fig.11 for Figure 8 Schematic diagram of the enlarged structure at G in the middle.

[0019] 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, exhaust 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 one-way valve; 311, first connecting pipe; 312, first solenoid valve; 313, second solenoid valve; 314, second connecting pipe; 315, third solenoid valve; 316, fourth solenoid valve; 401, mounting cover; 402, moving frame; 403, second through hole; 405, spiral tube; 406, second connecting pipe; 407, air outlet pipe; 501, supporting block; 502, connecting plate; 503, first supporting plate; 504, first rotating shaft; 505, rotating plate; 506, first slide groove; 507, second slide groove; 50 8. 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 sleeve rod; 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 sleeve rod; 904. Second connecting block ;905, second electromagnet; 906, second iron block; 907, third spring; 1001, installation box; 1002, second rotating shaft; 1003, rotating fan; 11, protective cover; 1201, first moving block; 1202, first nozzle; 1203, L-shaped tube; 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 nozzle; 1213, fixed cover; 1214, U-shaped frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 11 The present invention provides a technical solution: 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, 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 arranged on the side wall of the protective cover 11, and a cooling mechanism for cooling the pump body 102 is arranged on the top of the base 101; The hot air mechanism includes 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 the first heat preservation box 301 is slidably connected with a first disc 305, and the second heat preservation box 303 is slidably connected with a second disc 306, and the top of the first heat preservation box 301 is fixedly connected with a cylinder 307, and the telescopic end of the cylinder 307 is fixedly connected with a 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, a first connecting pipe 309 is fixedly connected between the first disc 305 and the second disc 306, and a first one-way valve 310 is arranged on the side wall of the first connecting pipe 309, the conducting direction of the first one-way valve 310 is from the second insulation box 303 to the first insulation box 301, a first connecting pipe 311 is fixedly connected between the first insulation box 301 and the water inlet pipe 104, and a first electromagnetic valve 310 is arranged on the side wall of the first connecting pipe 311 12, a second electromagnetic valve 313 is provided on the side wall of the water inlet pipe 104, and 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 electromagnetic valve 315 is provided on the side wall of the second connecting pipe 314, and a fourth electromagnetic valve 316 is provided on the side wall of the water outlet pipe 105, and a drying mechanism for drying air is provided on the side wall of the second connecting pipe 314, which is convenient for preheating the inside of the pump body 102 before use, and for spraying the surface of the pump body 102 when in use. Water and air cooling, after use, it is convenient to blow high-temperature air into the pump body 102 to dry the water stains. At the same time, the desiccant can be used to absorb the moisture, which can not only avoid rust caused by water stains in the pump body 102, but also have an antifreeze effect at low temperatures, ensuring its use effect and life, and the waste heat of the air can be recycled and reused and the desiccant can be automatically dried to avoid heat waste while ensuring the subsequent desiccant's absorption efficiency and effect of moisture.

[0022] The cooling mechanism includes two symmetrically arranged first moving blocks 1201, and each of the first moving blocks 1201 is connected to the top of the base 101 through 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 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 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 1208 is slidably connected in the fixed cover 1213 , and a first through hole 1209 is opened 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 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 the first pushing mechanism, a U-shaped frame 1214 is fixedly connected between the two second moving blocks 1207, a second nozzle 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 nozzle 1212 is provided on the side wall of the protective cover 11, when the pump body 102 When the temperature of the surface is high, the second moving block 1207 is pushed to reciprocate by the first pushing mechanism. 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 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 tube 1203. When the second moving block 1207 continues to move, the first moving block 1201 can be pushed to move by the L-shaped tube 1203. At the same time, the second nozzle 1212 is sprayed on the surface of the pump body 102 through the air supply mechanism to cool it. In addition, on the gravity plate 120 5, the water in the water storage cover 1204 can be squeezed, and at the same time, it can pass through the first hose 1206 and the L-shaped tube 1203 and then be sprayed on the surface of the pump body 102 through the first nozzle 1202, so that the efficiency of the air blowing cooling is higher and the effect is better. When the second moving 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. Then, the first moving block 1201 is driven to move and reset along the fixed rod 602 through the L-shaped tube 1203, so that the water utilization effect is better.

[0023] The air supply mechanism includes a first fixed cylinder 201 fixedly inserted on one side of the protective cover 11, and 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 opened at the end of the first fixed cylinder 201, a second one-way valve is arranged in the air inlet hole 202, and the conducting direction of the second one-way valve is from the outside to the first fixed cylinder 201, a side wall of the first fixed cylinder 201 is fixedly connected with an air supply pipe 203, and a third one-way valve is arranged in the air supply pipe 203, and the conducting 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 nozzle 1212 and the air supply pipe 203, and a first piston 205 is slidably connected in the first fixed cylinder 201, a second piston 208 is slidably connected in 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 second connecting rod 20 6 is pushed by the second pushing mechanism, the bottom of the second fixed cylinder 207 is fixedly connected with an exhaust pipe 209, and a fourth one-way valve is arranged in the exhaust pipe 209, the conducting direction of the fourth one-way valve is from the inside of the protective cover 11 to the second fixed cylinder 207, the end of the second fixed cylinder 207 is fixedly connected with a discharge pipe 210, and a fifth one-way valve is arranged in the discharge pipe 210, the conducting direction of the fifth one-way valve is from the second fixed cylinder 207 to the discharge pipe 210, the second connecting rod 206 is pushed to reciprocate by the second pushing mechanism, when the second connecting rod 206 reciprocates, it can drive the first piston 205 and the second piston 208 to reciprocate, when the first piston 205 reciprocates in the first fixed cylinder 201, it can draw the external air into the first fixed cylinder 201 through the air inlet 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.

[0024] The drying mechanism includes a mounting cover 401 fixedly inserted on the side wall of the second connecting pipe 314, and a moving frame 402 is connected to the mounting cover 401 through a moving mechanism, and a plurality of second through holes 403 arranged in an array are provided on the top and bottom of the moving frame 402, and the moving frame 402 is filled with a desiccant, an air outlet pipe 407 is fixedly inserted on the side wall of the mounting cover 401, and a spiral tube 405 is fixedly connected to the heat preservation cover 304, the upper end of the spiral tube 405 is fixed to the lower end of the exhaust pipe 210, and a second connecting pipe 406 is fixedly connected between the mounting cover 401 and the lower end of the spiral tube 405, the air exhausted through the second connecting pipe 314 can enter the moving frame 402, and is dried under the action of the desiccant, and the air after drying enters the second heat preservation box 303, and at the same time, the air is discharged through the exhaust pipe 2 The hot air discharged from the spiral tube 405 can enter the spiral tube 405, so as to preheat the air in the second insulation box 303, which can not only improve the efficiency of the electric heating module 302 in heating 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 circulation in the second connecting pipe 314. At this time, the moving frame 402 is driven to move by 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 that the desiccant in the moving frame 402 can be automatically dried to ensure its subsequent absorption efficiency and effect of moisture.

[0025] The guiding mechanism includes 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 the opposite side walls of the two first fixed blocks 601. 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 mounting hole 603. The rubber ring 604 is sleeved on the side wall of the fixed rod 602, which guides and resets the movement of the first movable block 1201. Moreover, under the action of the rubber ring 604, the first movable block 1201 will move along the side wall of the fixed rod 602 only when pushed by an external force.

[0026] The first pushing mechanism includes 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 through a first rotating shaft 504, and 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, and 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 In the first slide groove 506, the side wall of the second movable block 1207 is fixedly connected with a second push pin 509, and the second push pin 509 is inserted in the second slide groove 507. When the second connecting rod 206 moves back and forth, it can drive the first push pin 508 to slide in the first slide 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 push pin 509 slides along the second slide groove 507, and then pushes the second movable block 1207 to reciprocate.

[0027] The moving mechanism includes 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 first sleeve tube 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, the first electromagnet 705 is energized, and after being energized, the first electromagnet 705 attracts the first iron block 706, so that the moving frame 402 moves toward the direction close to the second fixed block 701, and at the same time, the second spring 704 is compressed.

[0028] The second pushing mechanism includes a second supporting plate 801 fixedly connected to the top of the base 101, and the side wall of the second supporting plate 801 is rotatably connected to a cam 803 through a rotating rod 802, the top of the supporting block 501 is connected to a moving plate 804 through 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, when the temperature of the surface of the pump body 102 is high, the moving plate 804 is driven to move upward through the lifting mechanism, and at the same time, the moving plate 804 is driven to move upward. The first pushing block 805 and the second pushing block 806 move upward, and the rotating rod 802 and the cam 803 are driven to rotate through the driving mechanism. When the tip of the cam 803 abuts against the side wall of the first pushing block 805, the second connecting rod 206 can be pushed 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, the second connecting rod 206 can be pushed to move away from the cam 803. This reciprocating movement can make the second connecting rod 206 move back and forth.

[0029] The lifting mechanism includes a first connecting block 901 fixedly connected to the side wall of the supporting block 501, and the top of the first connecting block 901 is fixedly connected to two symmetrically arranged second sleeves 902, each second sleeve 902 is inserted with a second rod 903, and the upper end of the second rod 903 is fixedly connected to a 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 a second electromagnet 905, and the bottom of the second connecting block 904 is fixedly connected to a second iron block 906, when the temperature on the surface of the pump body 102 is high, the second electromagnet 905 is powered off, 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, and at the same time, the first push block 805 and the second push block 806 are driven to move upward through the movable plate 804.

[0030] The driving mechanism includes an installation box 1001 fixedly inserted into the side wall of the water inlet pipe 104, and a rotary fan 1003 is rotatably connected to the installation box 1001 through a second rotating shaft 1002, and one end of the second rotating shaft 1002 is fixed to one end of a rotating rod 802. When water passes through the water inlet pipe 104, it can enter the installation box 1001 and impact the surface of the rotary fan 1003, thereby causing the rotary fan 1003 and the second rotating shaft 1002 to rotate. When the second rotating shaft 1002 rotates, the cam 803 can be driven to rotate through the rotating rod 802.

[0031] Working principle: When in use, after use, the second solenoid valve 313 and the fourth solenoid valve 316 are closed, the first solenoid valve 312 and the second connecting pipe 314 are opened, and then the cylinder 307 is started, and the first disc 305 and the second disc 306 are driven 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 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 sucked into the second insulation box 303 through the second connecting pipe 314, so as to facilitate the pump body 10 2, and the moisture can be dried and absorbed by the drying mechanism, which can not only avoid rust caused by water stains in the pump body 102, but also have an antifreeze effect at low temperatures, thereby ensuring the effect and life of its use. 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 drawn into the first insulation box 301 for heating treatment to ensure subsequent normal use. Similarly, before use, high-temperature air can be blown into the pump body 102, thereby preheating the pump body 102 to ensure the effect and life of its use.

[0032] When the temperature on the surface of the pump body 102 is high, the second electromagnet 905 is powered off. 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, the first push block 805 and the second push block 806 are driven to move upward through the moving plate 804. When water passes through the water inlet pipe 104, it can enter the installation box 1001 and impact the surface of the rotating fan 1003, so that the rotating fan 1003 and the second rotating shaft 1002 are moved forward. When the second rotating shaft 1002 rotates, the cam 803 can be driven to rotate through the rotating rod 802. When the tip of the cam 803 abuts against the side wall of the first pushing block 805, the second connecting rod 206 can be pushed 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, the second connecting rod 206 can be pushed to move away from the cam 803. This reciprocating process can make the second connecting rod 206 move back and forth.

[0033] 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.

[0034] 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.

[0035] In addition, the air exhausted through the second connecting pipe 314 can enter the movable frame 402, and is 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 exhausted through the exhaust pipe 210 can enter the spiral tube 405, so that the air in the second heat preservation box 303 can be preheated, which can not only improve the efficiency of the electric heating module 302 in heating the air, but also recycle and reuse the residual heat to avoid waste. After that, the air enters the installation cover 401 and is discharged through the outlet pipe 407. In addition, before the pump body 102 is dried, Or during preheating, there is no air circulation in the second connecting pipe 314. At this time, the first electromagnet 705 is energized. After being energized, the first electromagnet 705 attracts the first iron block 706, so that the movable frame 402 moves toward 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 movable frame 402 to dry the desiccant in the movable frame 402, and then be discharged through the exhaust pipe 407, so that the desiccant in the movable frame 402 can be automatically dried to ensure its subsequent absorption efficiency and effect of moisture.

[0036] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0037] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to 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).

2. A high-pressure water pump for a road cleaning vehicle according to claim 1, characterized in that: 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).

3. A high-pressure water pump for a road cleaning vehicle according to claim 2, 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).

4. A high-pressure water pump for a road cleaning vehicle according to claim 3, 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).

5. A high-pressure water pump for a road cleaning vehicle according to claim 2, 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).

6. A high-pressure water pump for a road cleaning vehicle according to claim 3, 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).

7. A high-pressure water pump for a road cleaning vehicle according to claim 4, 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).

8. A high-pressure water pump for a road cleaning vehicle according to claim 6, 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.

9. A high-pressure water pump for a road cleaning vehicle according to claim 8, 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).

10. A high-pressure water pump for a road cleaning vehicle according to claim 8, 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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