A spray dust removal mechanism with built-in filtering structure

Abstract

The present invention discloses a spray dust removal mechanism with a built-in filtering structure, which relates to the technical field of dust removal for excavators, comprising a driving base, a chassis, a cab, a boom, a forearm, a bucket, a spray mechanism and a filtering mechanism, wherein the top wall of the driving base is fixedly mounted with the chassis, and the top front end of the chassis is fixedly mounted with the cab, while the front end of the top wall of the driving base is rotatably mounted with the boom, the front end of the boom is rotatably mounted with the forearm, and the front end of the forearm is rotatably mounted with the bucket, and a spray mechanism is arranged in the device, the spray mechanism comprises a stepping mechanism and a driving mechanism, wherein the stepping mechanism is arranged on the bottom wall of the cab, the driving mechanism is rotatably mounted on the side wall of the forearm, a spray plate is fixedly mounted on the end of the driving mechanism, and two sets of rotating mechanisms are arranged in the driving mechanism, so as to adjust the spray angle of the spray plate, thereby achieving better dust removal effect, and after the work is completed, the spray plate is rotated to the front of the bucket to achieve cleaning of the bucket.

Description

Technical Field

[0001] The invention relates to the technical field of excavator dust removal, in particular to a spray dust removal mechanism with a built-in filtering structure. Background Art

[0002] An excavator, also known as an excavating machine or backhoe, is an earth-moving machine that uses its bucket to dig up materials above or below the surface and load them onto transport vehicles or unload them into a stockpile. Excavators primarily dig up soil, coal, silt, and pre-loosened soil and rock. In recent years, the development of construction machinery has been relatively rapid, and excavators have become one of the most important types of construction machinery.

[0003] With the gradual increase in infrastructure projects, excavators are widely used as an excavation equipment. However, during use, excavators are prone to generate dust during excavation, which not only pollutes the environment but also interferes with the operator's vision. At the same time, after the excavator is finished working, the bucket needs to be cleaned. The existing cleaning methods mostly use manual flushing. During the manual flushing process, the flushing water stains can splash on the operator's body, and an external water source is also required. However, it is often difficult to connect an external water source in the working scene of the excavator, which makes the cleaning of the bucket very inconvenient, causing the clay to dry and solidify in the bucket, which is difficult to clean, greatly increasing the labor intensity of the operator. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a spray dust removal mechanism with a built-in filtering structure, which utilizes the spray mechanism to process dust, and the spray mechanism can flush the bucket, which is more practical.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: including a driving base, a chassis, a cockpit, a boom, a forearm, a bucket, a spraying mechanism and a filtering mechanism, wherein the top wall of the driving base is fixedly mounted with the chassis, and the top front end of the chassis is fixedly mounted with the driving base, and the front end of the top wall of the driving base is rotatably mounted with the boom, the front end of the boom is rotatably mounted with the forearm, and the front end of the forearm is rotatably mounted with the bucket, wherein the boom, the forearm and the bucket are all driven by a cylinder, and a spraying mechanism is provided in the device, and the spraying mechanism includes a stepping mechanism and a driving mechanism, wherein the stepping mechanism is provided on the bottom wall of the cockpit, the driving mechanism is rotatably mounted on the side wall of the forearm, and the end of the driving mechanism is fixedly mounted with a spraying mechanism. Plate, at the same time, the pressing mechanism and the driving mechanism are connected together through an air duct, and a filtering mechanism is provided inside the chassis, and the filtering mechanism and the water tank are connected together, wherein the water tank is installed on the top wall of the chassis, located behind the cockpit, and a water pump is provided inside the water tank, and the output end of the water pump is connected to the spray plate through a water pipe; the driving mechanism includes a driving cylinder, a connecting block and a rotating mechanism, wherein the driving cylinder is rotatably mounted on the end of the mounting seat, the mounting seat is fixedly mounted on the bottom wall of the front end of the forearm, and is arranged close to the bucket, and the end of the driving cylinder is rotatably mounted in the side wall of the connecting block, wherein the connecting block is rotatably mounted on the bottom wall of the forearm through a rotating seat, and at the same time, a connecting rod is rotatably mounted on the bottom of the connecting block, connecting rod 1, The other end of rod one is fixedly mounted with a spray plate, and two sets of rotating mechanisms are symmetrically mounted on the left and right side walls of the connecting block, and the other end of the rotating mechanism is rotatably mounted on the top wall of the spray plate; the rotating mechanism includes a fixed rod one and a telescopic rod one, wherein the end of the fixed rod one is rotatably mounted on the side wall of the connecting block, and an air storage chamber one is opened in the side wall of the other end of the fixed rod one, a piston one is slidably mounted inside the air storage chamber one, a telescopic rod one is fixedly mounted on the side wall of the piston one, and the other end of the telescopic rod one extends out from the side wall of the air storage chamber one, wherein the extended end of the telescopic rod one is rotatably mounted on the top wall of the spray plate, and an air guide tube is fixedly mounted on the side wall of the air storage chamber one away from the telescopic rod one; the stepping mechanism is provided with two groups, The pressing mechanism and the rotating mechanism are symmetrically connected together, and one pressing mechanism controls one rotating mechanism. The pressing mechanism includes a pedal, a second telescopic rod, and a second fixed rod. The pedal is fixedly mounted on the bottom wall of the cockpit via a second rotating seat, and a second telescopic rod is fixedly mounted on the bottom wall of the pedal away from the second rotating seat. The second fixed rod is rotatably mounted on the bottom wall of the cockpit, and a second air storage chamber is defined in the second fixed rod. A second piston is slidably mounted in the second air storage chamber. The end of the second telescopic rod is connected to the side wall of the second piston, and an air guide tube is mounted on the side wall of the second air storage chamber away from the second piston. A return spring is mounted in the middle of the bottom of the pedal, and the other end of the return spring is mounted on the bottom wall of the cockpit.The bottom wall of the spray plate is provided with a groove, wherein a liquid guide plate is provided inside the groove, and both ends of the liquid guide plate are slidably mounted on the side walls of the groove by a slide rail, and a plurality of nozzles are fixedly mounted on the bottom wall of the liquid guide plate, and an elastic bottom plate is fixedly mounted on the bottom wall of the groove, and the sealing and shielding of the groove are completed by the elastic bottom plate, and a conical groove is provided in the inner wall of the elastic bottom plate close to the nozzle, and the bottom of the nozzle is slidably mounted on the top of the conical groove; a liquid storage cavity is provided on the top of the spray plate, wherein the top of the liquid storage cavity is connected to the water pipe, and a piston plate is slidably mounted inside the liquid storage cavity, and a through hole is provided in the middle of the piston plate, and a liquid guide mechanism is fixedly mounted in the through hole, wherein the bottom of the liquid guide mechanism extends from the bottom of the liquid storage cavity, and the protruding end of the liquid guide mechanism is connected to the liquid guide plate, and a plurality of nozzles are fixedly mounted on the top wall of the liquid guide plate. A tensioning spring, the top of which is fixedly mounted on the top wall of the groove; the liquid guiding mechanism comprises a connecting column, a sealing ball, and a support spring, wherein the top of the connecting column is fixedly mounted on the inside of the piston plate, and the bottom of the connecting column is fixedly mounted on the top wall of the liquid guiding plate. A liquid guiding cavity is defined within the connecting column, and a conical hole is defined at the top of the liquid guiding cavity, wherein a sealing ball is slidably mounted within the conical hole, and a support spring is fixedly mounted on the bottom wall of the sealing ball. The other end of the support spring is fixedly mounted on the bottom wall of the connecting column, and a telescopic sleeve 1 is provided on the outside of the support spring, with the two ends of the telescopic sleeve 1 being fixedly mounted on the side walls of the sealing ball and the connecting column, respectively. An annular liquid guiding hole is defined at the bottom of the connecting column, which connects the liquid guiding cavity and the liquid guiding plate together, and the elasticity of the support spring is greater than that of the tensioning spring.

[0006] As a further solution of the present invention: the filtering mechanism includes a reel, an extraction pump and a filter box, wherein the reel is installed close to the inner wall of the box, and a water inlet pipe is wound inside the reel, and the end of the water inlet pipe extends from the side wall of the box, and a hanging plate is fixedly installed on the outer wall of the box, and the end of the water inlet pipe is hung inside the hanging plate, wherein a filter head is installed at the end of the water inlet pipe, and the other end of the water inlet pipe extends from the side wall of the reel, and the extended end of the water inlet pipe is connected to the output end of the extraction pump, and the extraction pump is fixedly installed on the bottom wall of the box, wherein the output end of the extraction pump is connected to the water pipe through the water guide pipe It is connected to the bottom of the filter box, and a mounting plate is provided inside the filter box. The mounting plate is slidably mounted on the side wall of the filter box through a second slide rail, wherein a plurality of through holes are opened inside the mounting plate, and a filter screen is mounted on the top of the mounting plate through mounting bolts. At the same time, a box cover is rotatably mounted on the top of the filter box, and a connecting pipe is fixedly mounted on the top side wall of the filter box, and the other end of the connecting pipe is connected to the water tank. At the same time, a pair of linkage mechanisms are fixedly mounted on the bottom wall of the mounting plate, and the bottom of the linkage mechanism extends from the bottom wall of the filter box, and the bottom of the linkage mechanism is fixedly mounted on the bottom wall of the chassis.

[0007] As a further solution of the present invention: the linkage mechanism includes a fixed bottom rod, a support plate and a sliding rod, wherein the fixed bottom rod is designed to be in a "T" shape, and the straight side of the fixed bottom rod extends into the interior of the filter box, and at the same time, a sliding rod is slidably installed inside the fixed bottom rod, and a support plate is fixedly installed on the end of the sliding rod, and the support plate is fixedly installed on the bottom wall of the mounting plate, and the support plate and the fixed bottom rod are connected together by a telescopic sleeve 2, and at the same time, a side groove is provided at the bottom of the fixed bottom rod, and a connecting rod 2 is slidably installed inside the side groove, and the connecting rod 2 is fixedly installed on the bottom wall of the sliding rod, and the other end of the connecting rod 2 is connected to the engine casing inside the chassis.

[0008] As a further solution of the present invention: slot one and slot two are symmetrically provided on the side walls at both ends of the connecting block, wherein the axes of slot one and slot two are perpendicular to each other, the connecting block is rotatably installed on the end of the rotating seat one through slot one, and connecting rod one is rotatably installed at the bottom of slot two, and at the same time, slot three is provided on the side wall of the connecting block close to slot one, the axis of slot three and the axis of slot one are on the same straight line, wherein the telescopic end of the driving cylinder is rotatably installed in slot three through a pin shaft, and at the same time, a clamping plate is fixedly installed on the side wall of the connecting block away from slot three, which is used to fix and clamp the air guide pipe and the water pipe.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is provided with a spray mechanism, wherein the spray mechanism includes a stepping mechanism and a driving mechanism, a driving cylinder is provided in the driving mechanism, and two sets of rotating mechanisms are provided in the driving mechanism, and the connecting block is driven to rotate around the rotating seat one through the telescopic movement of the driving cylinder to adjust the front and rear spray angles of the spray plate, and by adjusting the length of the telescopic rod one in the rotating mechanism, the connecting rod one is driven to rotate in the slot two to adjust the left and right spray angles of the spray plate, thereby expanding the adjustment range of the spray plate angle and achieving better dust removal effect, and after the bucket work is completed, the bucket and the spray plate are rotated at the same time, and the spray plate is rotated to the front of the bucket to achieve cleaning of the bucket, thereby killing two birds with one stone and being more practical.

[0010] At the same time, the excavator is equipped with a filtering mechanism inside, which filters the external water used for on-site replenishment of pond water or river water. A coupling vibration mechanism is also provided in the filtering mechanism, which uses the vibration generated during the operation of the engine to drive the filter screen on the surface of the mounting plate to vibrate, and shake off the impurities attached to the surface of the filter screen, thereby ensuring the filtering effect of the filter screen and being more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a side view of the present invention.

[0012] Figure 2 It is a schematic structural diagram of the spray mechanism of the present invention.

[0013] Figure 3 It is a partial enlarged view of point A of the present invention.

[0014] Figure 4 It is the front view of the driving mechanism of the present invention.

[0015] Figure 5 It is a schematic structural diagram of the pressing mechanism of the present invention.

[0016] Figure 6 Schematic diagram of the internal structure of the shower plate of the present invention.

[0017] Figure 7 It is a partial enlarged view of point B of the present invention.

[0018] Figure 8 It is a schematic structural diagram of the liquid guiding mechanism of the present invention.

[0019] Figure 9 It is a schematic diagram of the filtering mechanism structure of the present invention.

[0020] Figure 10 It is a structural schematic diagram of the vibration-linked mechanism of the present invention.

[0021] Figure 11 Schematic diagram of the connection block of the present invention.

[0022] As shown in the figure: 1. Driving base, 2. Chassis, 3. Cockpit, 4. Big arm, 5. Small arm, 6. Bucket, 7. Water tank, 8. Pressing mechanism, 9. Driving mechanism, 10. Spray plate, 11. Air guide pipe, 12. Mounting seat, 13. Driving cylinder, 14. Connecting block, 15. Rotating seat 1, 16. Pin, 17. Rotating mechanism, 18. Connecting rod 1, 19. Fixed rod 1, 20. Telescopic rod 1, 21. Piston 1, 22. Air storage chamber 1, 23. Card, 24. Water pipe, 25. Pedal, 26. Rotating seat 2, 27. Telescopic rod 2, 28. Fixed rod 2, 29. Air storage chamber 2, 30. Piston 2, 31. Return spring, 32. Groove, 33. Elastic bottom plate, 34. Liquid guide plate, 35. Spray , 36. Slide rail one, 37. Liquid storage chamber, 38. Piston plate, 39. Liquid guide mechanism, 40. Tension spring, 41. Conical groove, 42. Connecting column, 43. Liquid guide chamber, 44. Sealing ball, 45. Support spring, 46. Telescopic sleeve one, 47. Liquid guide hole, 48. Winder, 49. Extraction pump, 50. Filter box, 51. Water inlet pipe, 52. Hanging plate, 53. Filter head, 54. Water guide pipe, 55. Mounting plate, 56. Slide rail two, 57. Filter screen, 58. Box cover, 59. Connecting pipe, 60. Vibration linkage mechanism, 61. Fixed bottom rod, 62. Support plate, 63. Slide rod, 64. Side groove, 65. Connecting rod two, 66. Telescopic sleeve two, 67. Slot one, 68. Slot two, 69. Slot three. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0025] See also Figures 1 to 3 In an embodiment of the present invention, a spray dust removal mechanism with a built-in filtering structure includes a driving base 1, a chassis 2, a cab 3, a boom 4, a forearm 5, a bucket 6, a spray mechanism and a filtering mechanism, wherein the top wall of the driving base 1 is fixedly mounted with the chassis 2, and the top front end of the chassis 2 is fixedly mounted with the cab 3, while the front end of the top wall of the driving base 1 is rotatably mounted with the boom 4, the front end of the boom 4 is rotatably mounted with the forearm 5, and the front end of the forearm 5 is rotatably mounted with the bucket 6, wherein the boom 4, the forearm 5 and the bucket 6 are all driven by a cylinder, and a spray mechanism is provided in the device, and the spray mechanism includes a stepping mechanism 8 and a driving mechanism 9, wherein the stepping mechanism 8 is arranged on the bottom wall of the cab 3, and the driving mechanism 9 is rotatably mounted on the side wall of the forearm 5, and a spray plate 10 is fixedly mounted on the end of the driving mechanism 9. At the same time, the pressing mechanism 8 and the driving mechanism 9 are connected together through an air guide pipe 11, and the driving mechanism 9 is controlled to move by the pressing mechanism 8. A filtering mechanism is provided inside the chassis 2, and the filtering mechanism and the water tank 7 are connected together, wherein the water tank 7 is mounted on the top wall of the chassis 2, located behind the cockpit 3, and a water pump is provided inside the water tank 7. The output end of the water pump is connected to the spray plate 10 through a water pipe 24, and the water in the water tank 7 is introduced into the spray plate 10 to absorb the dust generated during the excavation process, reduce the interference of the dust on the driver's vision, and reduce the air pollution caused by the excavation process.

[0026] See Figures 3-4It can be seen that the driving mechanism 9 includes a driving cylinder 13, a connecting block 14 and a rotating mechanism 17, wherein the driving cylinder 13 is rotatably mounted on the end of the mounting seat 12, the mounting seat 12 is fixedly mounted on the bottom wall of the front end of the arm 5, and is arranged close to the bucket 6, and the end of the driving cylinder 13 is rotatably mounted in the side wall of the connecting block 14, wherein the connecting block 14 is rotatably mounted on the bottom wall of the arm 5 through a rotating seat 15, and the connecting block 14 is driven to rotate by the driving cylinder 13, and at the same time, a connecting rod 18 is rotatably mounted on the bottom of the connecting block 14, and the other end of the connecting rod 18 is fixedly mounted with a spray plate 10, and two sets of rotating mechanisms 17 are symmetrically mounted on the left and right side walls of the connecting block 14, and the other end of the rotating mechanism 17 is rotatably mounted on the top wall of the spray plate 10, and the spray plate 10 is driven to rotate left and right by the rotating mechanism 17, thereby further expanding the spraying range of the spray plate 10.

[0027] The rotating mechanism 17 includes a fixed rod 19 and a telescopic rod 20, wherein the end of the fixed rod 19 is rotatably mounted on the side wall of the connecting block 14, and an air storage chamber 22 is opened in the side wall of the other end of the fixed rod 19, a piston 21 is slidably mounted inside the air storage chamber 22, and a telescopic rod 20 is fixedly mounted on the side wall of the piston 21, and the other end of the telescopic rod 20 extends from the side wall of the air storage chamber 22, wherein the extended end of the telescopic rod 20 is rotatably mounted on the top wall of the spray plate 10, An air guide tube 11 is fixedly installed on the side wall of the end of the air storage chamber 22 away from the telescopic rod 20. The air guide tube 11 controls the movement of the gas inside the air storage chamber 22, thereby driving the telescopic rod 20 to perform telescopic movement through the piston 21. The rotating mechanisms 17 on both sides are controlled separately. When the lengths of the telescopic rods 20 on both sides are the same, the spray plate 10 remains horizontal. When the lengths of the telescopic rods 20 on both sides are different, the spray plate 10 tilts toward the shorter side, thereby adjusting the spraying angle of the spray plate 10.

[0028] Preferably, a slot 1 67 and a slot 2 68 are symmetrically provided on the side walls at both ends of the connecting block 14, wherein the axes of the slot 1 67 and the slot 2 68 are perpendicular to each other, the connecting block 14 is rotatably mounted on the end of the rotating seat 15 through the slot 1 67, and the connecting rod 18 is rotatably mounted on the bottom of the slot 2 68, and at the same time, a slot 3 69 is provided on one side wall of the connecting block 14 close to the slot 1 67, the axis of the slot 3 69 and the axis of the slot 1 67 are on the same straight line, wherein the telescopic end of the driving cylinder 13 is rotatably mounted in the slot 3 69 through the pin shaft 16, thereby driving the connecting block 14 to rotate around the rotating seat 15 through the telescopic movement of the driving cylinder 13, adjusting the front and rear spraying angles of the spray plate 10, and adjusting the rotating machine The length of the telescopic rod 20 in the structure 17 drives the connecting rod 18 to rotate in the second slot 68, adjusts the left and right spray angles of the spray plate 10, expands the adjustment range of the angle of the spray plate 10, and has a better dust removal effect; and after the bucket 6 is completed, the bucket 6 and the spray plate 10 are rotated at the same time, and the spray plate 10 is rotated to the front of the bucket 6 to clean the bucket 6. During the cleaning process, the spray plate 10 rotates left and right, so that the spray plate 10 flushes the inside of the bucket 6 more evenly, thereby facilitating the cleaning of the bucket after the bucket 6 is completed. It kills two birds with one stone and has richer functions. At the same time, a card plate 23 is fixedly installed on the side wall of the connecting block 14 away from the card slot three 69 to fix the air guide pipe 11 and the water pipe 24.

[0029] See Figure 5 It can be seen that: the stepping mechanism 8 is provided with two groups, the stepping mechanism 8 and the rotating mechanism 17 are symmetrically connected together, and one group of stepping mechanisms 8 controls one group of rotating mechanisms 17, wherein the stepping mechanism 8 includes a pedal 25, a telescopic rod 27 and a fixed rod 28, and the pedal 25 is fixedly mounted on the bottom wall of the cockpit 3 through a rotating seat 26, and a telescopic rod 27 is fixedly mounted on the bottom wall of the pedal 25 away from the rotating seat 26, wherein the fixed rod 28 is rotatably mounted on the bottom wall of the cockpit 3, and an air storage chamber 29 is opened in the fixed rod 28, and a piston 230 is slidably installed in the air storage chamber 29, wherein the end of the telescopic rod 27 and the side wall of the piston 230 The two pedals 25 are connected together, and an air guide pipe 11 is installed on the side wall of the air storage chamber 29 away from the piston 2 30, and the air storage chamber 1 22 and the air storage chamber 2 29 are connected together through the air guide pipe 11. At the same time, a return spring 31 is installed in the middle position of the bottom of the pedal 25, and the other end of the return spring 31 is installed on the bottom wall of the cockpit 3; the driver presses on the pedal 25, and drives the piston 2 30 to press down through the telescopic rod 27, and introduces the gas inside the air storage chamber 29 into the air storage chamber 1 22, thereby driving the telescopic rod 1 20 to extend and drive the spray plate 10 to rotate. The spray range of the spray plate 10 can be adjusted by adjusting the pressure intensity, which is more convenient to operate.

[0030] See Figures 6-8 It can be seen that a groove 32 is provided on the bottom wall of the spray plate 10, wherein a liquid guide plate 34 is provided inside the groove 32, and both ends of the liquid guide plate 34 are slidably mounted on the side walls of the groove 32 through a slide rail 36, and a plurality of nozzles 35 are fixedly mounted on the bottom wall of the liquid guide plate 34, and an elastic bottom plate 33 is fixedly mounted on the bottom wall of the groove 32, and the groove 32 is sealed and shielded by the elastic bottom plate 33, and a conical shape is provided in the inner wall of the elastic bottom plate 33 near the nozzle 35. Groove 41, the bottom of the nozzle 35 is slidably mounted on the top of the conical groove 41. During operation, the nozzle 35 is driven downward by the liquid guide plate 34 to squeeze the nozzle 35 out of the conical groove 41. When spraying is not needed, the liquid guide plate 34 is reset to its initial state. At this time, the nozzle 35 is located at the top of the conical groove 41, and the bottom of the conical groove 41 remains sealed under the elastic action of the elastic bottom plate 33 itself, thereby preventing dust from clogging in the nozzle 35 and ensuring the normal operation of the nozzle 35.

[0031] Among them, a liquid storage chamber 37 is opened at the top of the spray plate 10, wherein the top of the liquid storage chamber 37 is connected to the water pipe 24, and a piston plate 38 is slidably installed inside the liquid storage chamber 37, and a through hole is opened in the middle of the piston plate 38, and a liquid guide mechanism 39 is fixedly installed in the through hole, wherein the bottom of the liquid guide mechanism 39 extends from the bottom of the liquid storage chamber 37, and the protruding end of the liquid guide mechanism 39 is connected to the liquid guide plate 34, and a plurality of tensioning springs 40 are fixedly installed on the top wall of the liquid guide plate 34, and the top of the tensioning spring 40 is fixedly installed on the top wall of the groove 32, and the tensioning spring 40 is used to fix, tighten and reset the liquid guide plate 34.

[0032] Among them, the liquid guiding mechanism 39 includes a connecting column 42, a sealing ball 44 and a support spring 45, wherein the top of the connecting column 42 is fixedly mounted on the inside of the piston plate 38, and the bottom of the connecting column 42 is fixedly mounted on the top wall of the liquid guiding plate 34, and at the same time, a liquid guiding cavity 43 is opened inside the connecting column 42, and a conical hole is opened on the top of the liquid guiding cavity 43, wherein a sealing ball 44 is slidably installed inside the conical hole, and the sealing of the conical hole is completed by the sealing ball 44, and at the same time, a support spring 45 is fixedly mounted on the bottom wall of the sealing ball 44, and the other end of the support spring 45 is fixedly mounted on the bottom wall of the connecting column 42, and a telescopic sleeve 46 is provided on the outside of the support spring 45, and the two ends of the telescopic sleeve 46 are respectively fixedly mounted on the sealing ball 44 and the side walls of the connecting column 42, and the telescopic sleeve 46 is used to block the support spring 45. The protection function prevents liquid from flowing into the spring and causing rust of the spring. An annular liquid guide hole 47 is provided at the bottom of the connecting column 42. The liquid guide hole 47 connects the liquid guide cavity 43 and the liquid guide plate 34 together. At the same time, the elasticity of the support spring 45 is much greater than the elasticity of the tensioning spring 40. During the spraying operation, the water pipe 24 introduces the liquid into the liquid storage cavity 37, first pushing the piston plate 38 downward to extend the nozzle 35 from the bottom of the conical groove 41. When the piston plate 38 moves to the bottom wall of the liquid storage cavity 37, the liquid presses the sealing ball 44 downward to connect the liquid guide cavity 43 and the liquid storage cavity 37 together, thereby introducing the liquid into the liquid guide plate 34 and spraying it from the nozzle 35. After the work is completed, the liquid injection is stopped, and the liquid guide plate 34 is reset to its initial state under the action of the tensioning spring 40, thereby storing the nozzle in the groove, which greatly increases the service life of the nozzle.

[0033] See Figures 9-10It can be seen that the filtering mechanism includes a reel 48, an extraction pump 49 and a filter box 50, wherein the reel 48 is installed close to the inner wall of the chassis 2, and a water inlet pipe 51 is wound inside the reel 48, and the end of the water inlet pipe 51 extends from the side wall of the chassis 2, and a hanging plate 52 is fixedly installed on the outer wall of the chassis 2, and the end of the water inlet pipe 51 is hung inside the hanging plate 52, wherein a filter head 53 is installed at the end of the water inlet pipe 51 to perform preliminary filtration on the water source, and the other end of the water inlet pipe 51 extends from the side wall of the reel 48, and the protruding end of the water inlet pipe 51 is connected to the output end of the extraction pump 49, and the extraction pump 49 is fixedly installed on the bottom wall of the chassis 2, wherein the output end of the extraction pump 49 is connected to the bottom of the filter box 50 through the water guide pipe 54, and water is introduced into the filter box 50 for filtration through the extraction pump 49. A mounting plate 55 is provided inside the filter box 50, and the mounting plate 55 is slidably mounted on the side wall of the filter box 50 by means of a second slide rail 56, wherein a plurality of through holes are opened inside the mounting plate 55, and a filter screen 57 is mounted on the top of the mounting plate 55 by means of mounting bolts. At the same time, a box cover 58 is rotatably mounted on the top of the filter box 50, and the filter screen 57 can be removed by opening the box cover 58, which facilitates cleaning or replacement of the filter screen 57. A connecting pipe 59 is fixedly mounted on the top side wall of the filter box 50, and the other end of the connecting pipe 59 is connected to the water tank 7, so that the purified liquid is introduced into the water tank 7 for storage for standby use. At the same time, a pair of coupling vibration mechanisms 60 are fixedly mounted on the bottom wall of the mounting plate 55, and the bottom of the coupling vibration mechanism 60 extends from the bottom wall of the filter box 50, and the bottom of the coupling vibration mechanism 60 is fixedly mounted on the bottom wall of the chassis 2.

[0034] The linkage mechanism 60 includes a fixed bottom rod 61, a support plate 62 and a slide rod 63, wherein the fixed bottom rod 61 is designed to be "T" shaped, and the straight edge of the fixed bottom rod 61 extends into the interior of the filter box 50, and the interior of the fixed bottom rod 61 is slidably mounted with a slide rod 63, and the end of the slide rod 63 is fixedly mounted with a support plate 62, and the support plate 62 is fixedly mounted on the bottom wall of the mounting plate 55, and the support plate 62 and the fixed bottom rod 61 are connected together by a telescopic sleeve 66, and the bottom of the fixed bottom rod 61 is provided with a side groove 64, and the side groove 64 is fixed with a side groove 64. A connecting rod 2 65 is installed for internal sliding. The connecting rod 2 65 is fixedly installed on the bottom wall of the slide bar 63, and the other end of the connecting rod 2 65 is connected to the outer casing of the engine (not shown in the figure) inside the chassis 2. Considering that the engine used in the excavator has a large power and generates large vibrations during operation, the vibration generated by the engine is introduced into the slide bar 63 through the connecting rod 2 65, driving the slide bar 63 to vibrate, thereby driving the filter screen on the surface of the mounting plate to vibrate, and shaking off the impurities attached to the surface of the filter screen, thereby ensuring the filtering effect of the filter screen.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention, and any contents not described in detail in this specification shall belong to the prior art known to professional and technical personnel in this field.

Claims

1. A spray dust removal mechanism with a built-in filtering structure, comprising a driving base (1), a chassis (2), a cab (3), a large arm (4), a small arm (5), a bucket (6), a spray mechanism and a filtering mechanism, characterized in that: The top wall of the driving base (1) is fixedly mounted with a chassis (2), and the top front end of the chassis (2) is fixedly mounted with a cab (3), and the front end of the top wall of the driving base (1) is rotatably mounted with a large arm (4), the front end of the large arm (4) is rotatably mounted with a small arm (5), and the front end of the small arm (5) is rotatably mounted with a bucket (6), wherein the large arm (4), the small arm (5) and the bucket (6) are all driven by a cylinder, and a spray mechanism is provided in the device, wherein the spray mechanism includes a stepping mechanism (8) and a driving mechanism (9), wherein the stepping mechanism (8) is provided on the bottom wall of the cab (3), and the driving mechanism (9) is rotatably mounted on the side wall of the small arm (5), and A spray plate (10) is fixedly mounted on the end of the driving mechanism (9), and the pressing mechanism (8) and the driving mechanism (9) are connected together through an air guide pipe (11). A filtering mechanism is provided inside the chassis (2), and the filtering mechanism and the water tank (7) are connected together, wherein the water tank (7) is installed on the top wall of the chassis (2) and is located behind the cockpit (3), and a water pump is provided inside the water tank (7), and the output end of the water pump is connected to the spray plate (10) through a water pipe (24); the driving mechanism (9) includes a driving cylinder (13), a connecting block (14) and a rotating mechanism (17), wherein the driving cylinder (13) is rotatably mounted on the mounting seat (12). The end portion of the connecting block (14) is fixedly mounted on the bottom wall of the front end of the small arm (5) and is arranged close to the bucket (6). The end portion of the driving cylinder (13) is rotatably mounted in the side wall of the connecting block (14), wherein the connecting block (14) is rotatably mounted on the bottom wall of the small arm (5) through the rotating seat (15). At the same time, a connecting rod (18) is rotatably mounted on the bottom of the connecting block (14). The other end of the connecting rod (18) is fixedly mounted with a spray plate (10). Two sets of rotating mechanisms (17) are symmetrically mounted on the left and right side walls of the connecting block (14). The other end of the rotating mechanism (17) is rotatably mounted on the top wall of the spray plate (10); the rotating mechanism (17) includes The invention comprises a fixed rod (19) and a telescopic rod (20), wherein the end of the fixed rod (19) is rotatably mounted on the side wall of the connecting block (14), and an air storage chamber (22) is provided in the side wall of the other end of the fixed rod (19), a piston (21) is slidably mounted inside the air storage chamber (22), a telescopic rod (20) is fixedly mounted on the side wall of the piston (21), and the other end of the telescopic rod (20) extends from the side wall of the air storage chamber (22), wherein the extended end of the telescopic rod (20) is rotatably mounted on the top wall of the spray plate (10), and an air guide tube (11) is fixedly mounted on the side wall of the air storage chamber (22) away from the telescopic rod (20);The stepping mechanism (8) is provided with two groups, the stepping mechanism (8) and the rotating mechanism (17) are symmetrically connected together, and one group of stepping mechanisms (8) controls one group of rotating mechanisms (17), wherein the stepping mechanism (8) comprises a pedal (25), a second telescopic rod (27) and a second fixed rod (28), and the pedal (25) is fixedly mounted on the bottom wall of the cockpit (3) through a second rotating seat (26), and a second telescopic rod (27) is fixedly mounted on the bottom wall of the pedal (25) away from the second rotating seat (26), wherein the second fixed rod (28) is rotatably mounted on the bottom wall of the cockpit (3), and fixed An air storage chamber (29) is provided in the fixed rod (28), and a piston (30) is slidably installed in the air storage chamber (29), wherein the end of the telescopic rod (27) and the side wall of the piston (30) are connected together, and an air guide tube (11) is installed on the side wall of the air storage chamber (29) away from the piston (30), and a return spring (31) is installed at the middle position of the bottom of the pedal (25), and the other end of the return spring (31) is installed on the bottom wall of the cockpit (3); a groove (32) is provided on the bottom wall of the spray plate (10), wherein the interior of the groove (32) is provided with There is a liquid guide plate (34), both ends of the liquid guide plate (34) are slidably mounted on the side walls of the groove (32) through a slide rail (36), and a plurality of nozzles (35) are fixedly mounted on the bottom wall of the liquid guide plate (34), and an elastic bottom plate (33) is fixedly mounted on the bottom wall of the groove (32), and the groove (32) is sealed and shielded by the elastic bottom plate (33), and a conical groove (41) is opened in the inner wall of the elastic bottom plate (33) near the nozzle (35), and the bottom of the nozzle (35) is slidably mounted on the top of the conical groove (41); the top of the spray plate (10) is provided with a liquid storage cavity (37), wherein the top of the liquid storage chamber (37) and the water pipe (24) are connected together, and a piston plate (38) is slidably installed inside the liquid storage chamber (37), and a through hole is opened in the middle of the piston plate (38), and a liquid guide mechanism (39) is fixedly installed in the through hole, wherein the bottom of the liquid guide mechanism (39) extends from the bottom of the liquid storage chamber (37), and the extended end of the liquid guide mechanism (39) is connected to the liquid guide plate (34), and a plurality of tension springs (40) are fixedly installed on the top wall of the liquid guide plate (34), and the top of the tension spring (40) is fixedly installed on the top wall of the groove (32);The liquid guiding mechanism (39) includes a connecting column (42), a sealing ball (44) and a support spring (45), wherein the top of the connecting column (42) is fixedly mounted inside the piston plate (38), and the bottom of the connecting column (42) is fixedly mounted on the top wall of the liquid guiding plate (34), and a liquid guiding cavity (43) is provided inside the connecting column (42), and a conical hole is provided on the top of the liquid guiding cavity (43), wherein a sealing ball (44) is slidably mounted inside the conical hole, and a support spring is fixedly mounted on the bottom wall of the sealing ball (44). (45), the other end of the support spring (45) is fixedly mounted on the bottom wall of the connecting column (42), and a telescopic sleeve (46) is provided on the outside of the support spring (45), and the two ends of the telescopic sleeve (46) are respectively fixedly mounted on the sealing ball (44) and the side wall of the connecting column (42), wherein an annular liquid guide hole (47) is opened at the bottom of the connecting column (42), and the liquid guide hole (47) connects the liquid guide cavity (43) and the liquid guide plate (34) together, and the elasticity of the support spring (45) is greater than the elasticity of the tension spring (40).

2. The spray dust removal mechanism with a built-in filter structure according to claim 1, characterized in that: The filtering mechanism comprises a reel (48), an extraction pump (49) and a filter box (50), wherein the reel (48) is installed close to the inner wall of the chassis (2), and a water inlet pipe (51) is wound inside the reel (48), the end of the water inlet pipe (51) extends from the side wall of the chassis (2), and a hanging plate (52) is fixedly installed on the outer wall of the chassis (2), the end of the water inlet pipe (51) is hung inside the hanging plate (52), wherein a filter head (53) is installed at the end of the water inlet pipe (51), and the other end of the water inlet pipe (51) extends from the side wall of the reel (48), and the extended end of the water inlet pipe (51) is connected to the output end of the extraction pump (49), and the extraction pump (49) is fixedly installed on the bottom wall of the chassis (2), wherein the output end of the extraction pump (49) is connected to the filter box (50) through the water guide pipe (54) and the filter box (50). The bottoms of the boxes (50) are connected together, and a mounting plate (55) is provided inside the filter box (50), and the mounting plate (55) is slidably mounted on the side wall of the filter box (50) through a second slide rail (56), wherein a plurality of through holes are opened inside the mounting plate (55), and a filter screen (57) is mounted on the top of the mounting plate (55) through mounting bolts, and a box cover (58) is rotatably mounted on the top of the filter box (50), and a connecting pipe (59) is fixedly mounted on the top side wall of the filter box (50), and the other end of the connecting pipe (59) is connected to the water tank (7), and a pair of coupling vibration mechanisms (60) are fixedly mounted on the bottom wall of the mounting plate (55), the bottom of the coupling vibration mechanism (60) extends from the bottom wall of the filter box (50), and the bottom of the coupling vibration mechanism (60) is fixedly mounted on the bottom wall of the chassis (2).

3. The spray dust removal mechanism with a built-in filter structure according to claim 2, characterized in that: The linkage mechanism (60) comprises a fixed bottom bar (61), a supporting plate (62) and a sliding bar (63), wherein the fixed bottom bar (61) is designed to be T-shaped, and the straight side of the fixed bottom bar (61) extends into the interior of the filter box (50), and the sliding bar (63) is slidably installed inside the fixed bottom bar (61), and the end of the sliding bar (63) is fixedly installed with a supporting plate (62), and the supporting plate (62) is fixedly installed on the bottom wall of the mounting plate (55), and the supporting plate (62) and the fixed bottom bar (61) are connected together by a second telescopic sleeve (66), and the bottom of the fixed bottom bar (61) is provided with a side groove (64), and the inside of the side groove (64) is slidably installed with a second connecting rod (65), and the second connecting rod (65) is fixedly installed on the bottom wall of the sliding bar (63), and the other end of the second connecting rod (65) is connected to the engine housing inside the chassis (2).

4. The spray dust removal mechanism with a built-in filter structure according to claim 1, characterized in that: A first card slot (67) and a second card slot (68) are symmetrically provided on the side walls at both ends of the connecting block (14), wherein the axes of the first card slot (67) and the second card slot (68) are perpendicular to each other, the connecting block (14) is rotatably mounted on the end of the rotating seat (15) through the first card slot (67), and the connecting rod (18) is rotatably mounted on the bottom of the second card slot (68), and a third card slot (69) is provided on a side wall of the connecting block (14) close to the first card slot (67), the axis of the third card slot (69) and the axis of the first card slot (67) are on the same straight line, wherein the telescopic end of the driving cylinder (13) is rotatably mounted in the third card slot (69) through the pin shaft (16), and a clamping plate (23) is fixedly mounted on a side wall of the connecting block (14) away from the third card slot (69) for fixing and clamping the air guide pipe (11) and the water pipe (24).

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