Adjustable cleaning device for diesel injector mounting hole and cleaning method

Abstract

The present application discloses diesel engine oil injector mounting hole adjustable cleaning equipment and cleaning method, including electrical components, the electrical components one end is connected to the connecting frame and the middle shell in turn, the middle shell is equipped with two groups of vertical cleaning plate away from the connecting frame side, two groups of the vertical cleaning plate opposite side are rotatably provided with movable cleaning plate, the middle shell is equipped with adjusting assembly.The present application is provided with adjusting assembly, through operating element drive top drive element one, can adjust the horizontal distance between two groups of vertical cleaning plate;When the hole bottom has the cylindrical oil injector mounting hole with the vertical section inverted trapezoidal groove, through operating element drive top drive element two, can make movable cleaning plate relative to vertical cleaning plate rotation and inverted trapezoidal groove inner wall contact, and then through vertical cleaning plate and movable cleaning plate cleaning, wide range of use, it is convenient to clean multiple different types of oil injector mounting hole.

Description

Technical Field

[0001] This invention relates to the field of diesel engine technology, specifically to an adjustable cleaning device and method for diesel engine injector mounting holes. Background Technology

[0002] A diesel engine is an internal combustion engine that uses diesel fuel. It is a compression ignition engine. The diesel engine uses an electronic control unit to control the injectors to inject diesel fuel into the pre-combustion chamber, igniting the fuel-air mixture. The resulting high-temperature combustion flame is injected into the main combustion chamber through a connecting channel, quickly igniting the combustible mixture in the main combustion chamber, thus achieving diesel fuel ignition in the pre-combustion chamber. Currently, during the experimental development of diesel engines, it is necessary to replace the injectors multiple times for comparative tests. During the test, it is inevitable that a lot of oil stains will be generated in the injector mounting holes. Therefore, it is necessary to use cleaning equipment to clean the injector mounting holes.

[0003] The invention disclosed in CN114876635B is a diesel engine injector mounting hole cleaning device, which includes a rotating rod, a collar fixedly sleeved on the outer surface and two cleaning brushes, a support plate movably sleeved on the outer surface of the rotating rod and movably engaged with the collar, a cylinder located at the lower end of the rotating rod, a mounting block located at the lower end of the cylinder, a drive mechanism rotatably connected to the mounting block and used to adjust the horizontal distance between the two cleaning brushes, a camera located at the lower end of the drive mechanism, a storage mechanism located on the mounting block for storing the camera and for automatic opening and closing, a display screen located at the upper end of the support plate and electrically connected to the storage mechanism, and a locking member located on the cylinder for locking the drive mechanism.

[0004] While the aforementioned cleaning device can be adjusted according to the inner diameter of the diesel engine injector mounting hole being cleaned, it has the following drawbacks: Some diesel engine injector mounting holes typically have a groove at the bottom that mates with the side of the injector inserted into the hole. The vertical cross-section of this groove is usually rectangular or inverted trapezoidal. For rectangular grooves, the cleaning device can adjust the horizontal distance between the two cleaning brushes to allow them to contact the sidewall of the groove. However, for inverted trapezoidal grooves, the inclined inner wall prevents the cleaning brushes from contacting the inner wall, thus hindering the cleaning of the diesel engine injector mounting hole groove. This limits its effectiveness and requires improvement. Therefore, we propose an adjustable cleaning device and method for diesel engine injector mounting holes. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable cleaning device and cleaning method for diesel engine injector mounting holes, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An adjustable cleaning device for diesel engine injector mounting holes includes an electrical component. One end of the electrical component is connected to a connecting frame and a middle shell in sequence. The middle shell has two sets of vertical cleaning plates on the side away from the connecting frame. Each of the two sets of vertical cleaning plates has a movable cleaning plate rotatably mounted on the opposite side. An adjustment component is provided inside the middle shell.

[0008] The adjustment assembly includes an operating component on the central shell, a first jacking drive component on the operating component, and a second jacking drive component. The first jacking drive component includes a frustum-shaped drive block connected to the operating component. Both ends of the frustum-shaped drive block slidably abut against L-shaped frames. The L-shaped frames are slidably disposed within an opening at the bottom of the central shell and connected to the inner wall of the opening via an elastic element. The other ends of the two sets of L-shaped frames are respectively connected to two sets of vertical cleaning plates. The second jacking drive component includes a movable block connected to the operating component. Both sides of the movable block are connected to pressure rods via telescopic rods. The two sets of pressure rods are movably inserted into protrusions fixed on the inner side of the vertical cleaning plates. The two sets of pressure rods slidably abut against the two sets of movable cleaning plates. The outer wall of the pressure rod is fitted with an elastic element.

[0009] The operating component is used to drive the frustum-shaped drive block to move the L-shaped frame and the two sets of vertical cleaning plates, or to drive the movable block to move the telescopic rod II so that the pressure rod pushes the movable cleaning plate to rotate.

[0010] Furthermore, the operating component includes a hollow threaded rod vertically disposed within the central housing and a fixed cylinder fixedly disposed in the middle of the central housing on the side away from the connecting frame. The hollow threaded rod is threaded through a frustum-shaped drive block, and one end of the hollow threaded rod extends into the connecting frame and is fixedly fitted with a drive handwheel. A threaded sleeve is slidably disposed within the fixed cylinder, and a screw is threadedly engaged within the threaded sleeve. One end of the screw movably passes through the central housing and extends into the hollow threaded rod and connects to an elastic telescopic rod. The fixed section of the elastic telescopic rod is rotatably disposed within the hollow threaded rod via a bearing. The end of the elastic telescopic rod away from the screw extends above the drive handwheel and is fitted with a drive handwheel. The end of the threaded sleeve away from the screw is connected to a movable block. The drive handwheel has a locking block, and the drive handwheel has multiple sets of locking slots arranged in a circular array for the locking blocks to be inserted.

[0011] The frustum-shaped drive block is connected to the inner wall of the central shell via a telescopic rod.

[0012] Furthermore, the electrical component includes a housing, a rotary drive unit disposed within the housing, a liquid supply unit, and a water intake unit;

[0013] The rotary drive unit is used to drive the connecting frame to rotate, the liquid supply unit is used to supply cleaning liquid into the vertical cleaning plate and the movable cleaning plate, and the water inlet unit is used to extract the cleaning liquid.

[0014] Furthermore, both sets of movable cleaning plates have an assembly recess at their bottom inner ends. A movable plate slides within the assembly recess, and one end of the movable plate is connected to the inner wall of one side of the assembly recess via a connecting spring. A rack slides on the movable plate, and one end of the rack is connected to one end of the movable plate via an elastic telescopic rod. The rack is driven by the liquid supply unit to move the movable plate. Hollow plates communicating with the liquid supply unit are provided on the outer sides of the movable plate, the movable cleaning plate, and the vertical cleaning plate. Brush bristles are evenly distributed on the outer side of the hollow plates, and seepage holes for wetting the brush bristles are also provided. The hollow plates on the movable plate and the movable cleaning plate are interconnected via a connecting pipe, and the hollow plates on the movable cleaning plate and the vertical cleaning plate are interconnected via a connecting pipe.

[0015] Furthermore, the rotary drive unit includes a hollow rotating shaft disposed within the housing. One end of the hollow rotating shaft movably passes through the inner side of the housing and is connected to the connecting frame. A micro rotating device is disposed within the housing. The output end of the micro rotating device is provided with a small gear, and the outer wall of the hollow rotating shaft is provided with a large gear that meshes with the small gear.

[0016] Furthermore, the liquid supply unit includes a miniature booster pump housed within the outer casing and a diverter pipe connected to one end of a hollow rotating shaft. The miniature booster pump impeller is connected to the output end of the miniature rotating device. The output end of the miniature booster pump is connected to a hollow sleeve, which is rotatably connected to the other end of the hollow rotating shaft. The diverter pipe has two water supply ends, which respectively pass through two sets of movable cleaning plates and extend into the assembly recess, connecting to the water inlet end of the guide shell fixed in the assembly recess. The guide shell contains a follower impeller, one end of which passes through the guide shell and has a toothed gear meshing with a rack. The water outlet end of the guide shell is connected to the hollow plate on the movable cleaning plate via a pipe.

[0017] Furthermore, the water intake unit includes a miniature water pump housed within the outer casing. The impeller shaft of the miniature water pump extends to the outside of the pump and meshes with a large gear via a small gear. The output end of the miniature water pump is connected to a water intake pipe via a pipe and a connecting member. The connecting member is fixedly mounted on a connecting frame and fitted onto one end of a hollow rotating shaft. The other end of the water intake pipe is connected to a liquid intake head with suction holes on its side wall. The liquid intake head is connected to a movable block via an elastic member. The bottom end of the liquid intake head extends between two sets of movable cleaning plates.

[0018] Furthermore, the connecting member includes an annular seat with an annular cavity inside. The top of the annular seat is hollow and rotatably fitted with an annular sealing cap for sealing the top of the annular seat. The annular sealing cap is fixedly sleeved on the pipe at the output end of the micro water pump, and the annular seat is fixedly sleeved on the end of the water inlet pipe away from the liquid inlet head.

[0019] A cleaning method for diesel engine injector mounting holes using adjustable cleaning equipment, comprising the following steps:

[0020] S1: When in use, the vertical cleaning plate is positioned in the injector mounting hole to be cleaned. According to the inner diameter of the injector mounting hole, the frustum-shaped drive block is moved by the operating component. The frustum-shaped drive block moves and pushes the two sets of L-shaped frames to move. The L-shaped frames drive the vertical cleaning plate to move until the outer wall of the vertical cleaning plate contacts the inner wall of the injector mounting hole.

[0021] S2: When the bottom of the injector mounting hole has a vertical cross-section in the shape of an inverted trapezoidal groove, the movable block is driven to move by the operating component. The movement of the movable block drives the pressure rod through the telescopic rod to rotate the two sets of movable cleaning plates relative to the vertical cleaning plate until the outer wall of the movable cleaning plate contacts the inner wall of the inverted trapezoidal groove of the injector mounting hole.

[0022] S3: By rotating the electrical component, the electrical component drives the connecting frame, the connecting frame drives the middle shell, and the middle shell drives two sets of vertical cleaning plates and two sets of movable cleaning plates to clean the injector mounting holes.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1) This invention is equipped with an adjustment component. When cleaning cylindrical injector mounting holes with a rectangular groove at the bottom of the hole, the horizontal distance between the two sets of vertical cleaning plates can be adjusted by driving the first push-drive component through the operating component. Cleaning is then performed by the vertical cleaning plate and the movable cleaning plate. When cleaning cylindrical injector mounting holes with an inverted trapezoidal groove at the bottom of the hole, the movable cleaning plate can be rotated relative to the vertical cleaning plate and contact the inner wall of the inverted trapezoidal groove by driving the second push-drive component through the operating component. Cleaning is then performed by the vertical cleaning plate and the movable cleaning plate. This invention has a wide range of applications and is convenient for cleaning multiple different types of injector mounting holes.

[0025] 2) The present invention is provided with a rotary drive unit that can drive the rotation during cleaning, thereby improving the cleaning quality of the injector mounting hole by the vertical cleaning plate and the movable cleaning plate. At the same time, a liquid supply unit is provided to supply liquid to the vertical cleaning plate and the movable cleaning plate and wet the outer bristles, further improving the cleaning quality of the injector mounting hole. A water guide unit is also provided to simultaneously extract the cleaning liquid in the hole during cleaning, reducing the burden of manual post-processing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 Structural front view;

[0028] Figure 3 This is a schematic diagram of the adjustment component structure in this document;

[0029] Figure 4 For the present invention Figure 1 Enlarged schematic diagram of structure A in the image;

[0030] Figure 5 This is a schematic diagram of the connecting member structure in this invention;

[0031] Figure 6 This is a schematic diagram of the cylindrical injector mounting hole of the present invention, which has a rectangular groove with a vertical cross-section at the bottom.

[0032] Figure 7 This is a schematic diagram of the cylindrical injector mounting hole of the present invention, which has a vertical cross-section with an inverted trapezoidal groove at the bottom.

[0033] In the diagram: 1. Electrical component; 2. Connecting frame; 3. Middle shell; 4. Vertical cleaning plate; 5. Movable cleaning plate; 6. Hollow threaded rod; 7. Frustum-shaped drive block; 8. Telescopic rod one; 9. Drive handwheel one; 10. Fixed cylinder; 11. Elastic telescopic rod one; 12. Screw; 13. Threaded sleeve; 14. Movable block; 15. Telescopic rod two; 16. Pressure rod; 17. Elastic element one; 18. Drive handwheel two; 19. L-shaped frame; 20. Elastic element two; 21. Hollow rotating shaft; 22. Hollow sleeve 23. Cylinder; 24. Miniature rotating device; 25. Miniature booster pump; 26. Small gear one; 27. Miniature water pump; 28. Connecting component; 29. ​​Annular seat; 20. Annular cavity; 21. Annular sealing cover; 22. Diverter pipe; 33. Water inlet pipe; 34. Movable plate; 35. Rack; 36. Assembly notch; 37. Guide shell; 38. Gear with missing tooth; 39. Elastic telescopic rod two; 40. Hollow plate; 31. Connecting pipe one; 32. Brush bristles; 43. Elastic component three; 44. Liquid inlet head. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Please see the appendix Figure 1 - Appendix Figure 2An adjustable cleaning device for diesel engine injector mounting holes. This adjustable cleaning device can clean cylindrical injector mounting holes and cylindrical injector mounting holes with a rectangular groove at the bottom (e.g., with attached...). Figure 6 Or a cylindrical injector mounting hole with a vertically shaped trapezoidal groove at the bottom (e.g., with attached...). Figure 7 );

[0037] It includes an electrical component 1, one end of which is connected to a connecting frame 2 and a middle shell 3. The middle shell 3 is provided with two sets of vertical cleaning plates 4 on the side away from the connecting frame 2. The two sets of vertical cleaning plates 4 are provided with movable cleaning plates 5 on opposite sides via a rotating shaft and a torsion spring. When the movable cleaning plates 5 are not adjusted, they are always perpendicular to the vertical cleaning plates 4. An adjustment component is provided inside the middle shell 3.

[0038] The end of the electrical component 1 away from the connecting bracket 2 is located on the operating handle, making it convenient for users to hold and clean it.

[0039] Please see the appendix Figure 3 The adjustment assembly includes an operating component disposed on the central housing 3, a first actuating drive component disposed on the operating component, and a second actuating drive component.

[0040] The push-drive component includes a frustum-shaped drive block 7 connected to the operating component. Both ends of the frustum-shaped drive block 7 slidably abut against L-shaped frames 19. The L-shaped frames 19 use rollers or embedded ball bearings to contact the inclined side surface of the frustum-shaped drive block 7, driving the L-shaped frames 19 to move when the frustum-shaped drive block 7 moves up and down. The L-shaped frames 19 are slidably disposed within an opening at the bottom of the central housing 3 and connected to the inner wall of the opening via an elastic element 17. For example, the L-shaped frames 19 are fitted onto the outer wall of a guide rod provided within the opening. The elastic element 17, for example, is a spring, with one end connected to the inner wall of the opening and the other end connected to the L-shaped frames 19. The other ends of the two sets of L-shaped frames 19 are respectively connected to two sets of vertical... The cleaning plate 4 is connected; the second push-drive component includes a movable block 14 connected to the operating component. Both sides of the movable block 14 are connected to pressure rods 16 via telescopic rods 15. The two sets of pressure rods 16 are respectively movably inserted into the protrusions fixed inside the vertical cleaning plate 4. When the vertical cleaning plate 4 moves, the pressure rods 16 drive the telescopic rods 15 to extend and retract. The two sets of pressure rods 16 slide against the two sets of movable cleaning plates 5 respectively. The pressure rods 16 can use rollers or balls to contact the movable cleaning plates 5. The outer wall of the pressure rods 16 is fitted with an elastic element 20, such as a spring. One end of the elastic element 20 is connected to the protrusion, and the other end is connected to the bottom end of the pressure rod 16.

[0041] The operating component is used to drive the frustum-shaped drive block 7 so that the L-shaped frame 19 moves the two sets of vertical cleaning plates 4, or to drive the movable block 14 to drive the telescopic rod 15 so that the pressure rod 16 pushes the movable cleaning plate 5 to rotate.

[0042] As a preferred embodiment, the operating components include a hollow threaded rod 6 vertically disposed inside the central shell 3 and a fixed cylinder 10 fixedly disposed in the middle of the central shell 3 on the side away from the connecting frame 2;

[0043] The hollow threaded rod 6 is threaded through the frustum-shaped drive block 7. The frustum-shaped drive block 7 is connected to the inner wall of the middle shell 3 through the telescopic rod 8. One end of the hollow threaded rod 6 extends into the connecting frame 2 and is fixedly fitted with a drive handwheel 9. With this arrangement, rotating the drive handwheel 9 drives the hollow threaded rod 6, so that the frustum-shaped drive block 7 moves up or down inside the middle shell 3.

[0044] A threaded sleeve 13 is slidably disposed inside the fixed sleeve 10. A screw 12 is threadedly engaged inside the threaded sleeve 13. One end of the screw 12 movably passes through the central shell 3 and extends into the hollow threaded rod 6, connecting to an elastic telescopic rod 11. The fixed section of the elastic telescopic rod 11 is rotatably disposed inside the hollow threaded rod 6 via a bearing, so that the movable section of the elastic telescopic rod 11 moves with the drive handwheel 18. The end of the elastic telescopic rod 11 away from the screw 12 extends above the drive handwheel 18 and is provided with the drive handwheel 18. The end of the threaded sleeve 13 away from the screw 12 is connected to a movable block 14. The drive handwheel 18... The drive handwheel 18 is equipped with a locking block, and the drive handwheel 19 has multiple sets of slots for the locking block to be inserted in a circular array. By pulling the drive handwheel 18 away from the drive handwheel 19, the locking block disengages from the slot. Then, the drive handwheel 18 is rotated, which drives the elastic telescopic rod 11. The elastic telescopic rod 11 drives the screw 12, which drives the threaded sleeve 13 to move the movable block 14. This adjustment will not affect the frustum-shaped drive block 7. Specifically, the movable block 14 can be moved inside the fixed cylinder 10. The outer wall of the fixed cylinder 10 has a vertical movable opening for the telescopic rod 15 to move.

[0045] Preferably, the electrical component 1 in this embodiment includes a housing, a rotary drive unit disposed inside the housing, a liquid supply unit, and a water intake unit;

[0046] The rotary drive unit is used to drive the connecting frame 2 to rotate, the liquid supply unit is used to supply cleaning liquid into the vertical cleaning plate 4 and the movable cleaning plate 5, and the water inlet unit is used to extract the cleaning liquid.

[0047] Please see the appendix Figure 4When cleaning cylindrical injector mounting holes, if the diameter of the mounting hole is large, adjusting the two sets of vertical cleaning plates 4 to make them contact the inner wall of the injector mounting hole is beneficial. However, if there is a gap between the two sets of movable cleaning plates 5 after the adjustment of the two sets of vertical cleaning plates 4, although the inner wall of the injector mounting hole can be cleaned by the vertical cleaning plates 4, there will be cleaning dead corners for the inner wall of the bottom of the injector mounting hole by the movable cleaning plates 5 (when the injector mounting hole has no groove). Therefore, as a preferred embodiment, each of the two sets of movable cleaning plates 5 has an assembly recess 32 at its bottom inner end. A movable plate 30 is slidably installed in the assembly recess 32, and one end of the movable plate 30 is connected to one side of the inner wall of the assembly recess 32. A connecting spring is used to assist the movement of the movable plate 30, which is then reset. A rack 31 is slidably mounted on the movable plate 30. One end of the rack 31 is connected to one end of the movable plate 30 via an elastic telescopic rod 35. The rack 31 is driven by the liquid supply unit to move the movable plate 30. When the two sets of movable plates 30 come into contact, the liquid supply unit continues to drive the rack 31, causing the rack 31 to squeeze the elastic telescopic rod 35 for compensation. The elastic coefficient of the elastic telescopic rod 35 is greater than that of the connecting spring, so that the rack 31 first drives the movable plate 30 to pull the connecting spring. When the two sets of movable plates 30 come into contact, the rack 31 then moves to squeeze the elastic telescopic rod 35.

[0048] The outer sides of the movable plate 30, the movable cleaning plate 5, and the vertical cleaning plate 4 are all provided with hollow plates 36 that communicate with the liquid supply section. The hollow plates 36 are uniformly provided with bristles 38 and also have seepage holes for wetting the bristles 38, thereby improving the cleaning quality of the injector mounting holes.

[0049] The hollow plates 36 on the movable plate 30 and the movable cleaning plate 5 are connected to each other through a connecting pipe 1 37, and the hollow plates 36 on the movable cleaning plate 5 and the vertical cleaning plate 4 are connected to each other through a connecting pipe 2, so that the liquid flows in the movable plate 30, the movable cleaning plate 5 and the hollow plates 36 outside the vertical cleaning plate 4.

[0050] Preferably, the rotary drive unit of this embodiment includes a hollow rotating shaft 21 disposed inside the housing. One end of the hollow rotating shaft 21 movably passes through the inner side of the housing and is connected to the connecting frame 2. A micro rotating device 23 is disposed inside the housing. The micro rotating device 23 is, for example, a micro motor. The output end of the micro rotating device 23 is provided with a small gear 25, and the outer wall of the hollow rotating shaft 21 is provided with a large gear that meshes with the small gear 25. Specifically, the number of teeth of the large gear is 3-4 times the number of teeth of the small gear 25, so that the hollow rotating shaft 21 rotates at a uniform speed, while the micro rotating device 23 can maintain high-speed rotation.

[0051] Preferably, the liquid supply unit in this embodiment includes a miniature booster pump 24 disposed inside the housing and a diversion pipe 28 connected to one end of the hollow rotating shaft 21;

[0052] The micro booster pump impeller (which is a conventional structure in the micro booster pump 24) inside the micro booster pump 24 is connected to the output end of the micro rotating device 23. The micro rotating device 23 rotates and drives the micro booster pump impeller, so that the micro booster pump 24 can input liquid.

[0053] The micro booster pump 24 has an external pipe connecting to the input end of the housing and a hollow sleeve 22 connecting to the output end. The external pipe can be connected to an external liquid supply bottle, for example. The hollow sleeve 22 is rotatably connected to the other end of the hollow shaft 21 so that the cleaning liquid enters the hollow shaft 21 through the hollow sleeve 22. The diverter pipe 28 has two water supply ends (hose). The two water supply ends pass through two sets of movable cleaning plates 5 and extend into the assembly recess 32, communicating with the water inlet end of the guide shell 33 fixed in the assembly recess 32. The guide shell 33 is equipped with a follower. The impeller (not shown in the figure) has a shaft that passes through the guide housing 33 and is equipped with a toothed gear 34 that meshes with the rack 31. The water outlet of the guide housing 33 is connected to the hollow plate 36 on the movable cleaning plate 5 through a pipe. The cleaning liquid passes through the micro booster pump 24 and the diversion pipe 28 to the guide housing 33. When the cleaning liquid moves in the guide housing 33, it drives the follower impeller to drive the toothed gear 34. The toothed gear 34 drives the rack 31 to move the movable plate 30 inward. Then the liquid enters each hollow plate 36 through the water outlet pipe.

[0054] As a preferred embodiment, the water intake part of this embodiment includes a miniature water pump 26 disposed in the housing. The impeller shaft of the impeller (a conventional structure in the miniature water pump 26) inside the miniature water pump extends to the outside of the miniature water pump 26 and meshes with the large gear through the small gear 2. When the hollow rotating shaft 21 rotates, it also drives the impeller shaft of the miniature water pump to rotate at high speed through the large gear and the small gear 2, thereby making the miniature water pump 26 work.

[0055] The input end of the miniature water pump 26 is provided with an external pipe 2 that penetrates the outer shell. The external pipe 2 can be connected to an external container for collecting liquid. The output end of the miniature water pump 26 is connected to a water inlet pipe 29 through a pipe and a connecting piece 27. The connecting piece 27 is fixedly mounted on the connecting frame 2 and fixedly sleeved on one end of the hollow rotating shaft 21. The other end of the water inlet pipe 29 is connected to a liquid inlet head 40 with a suction hole on the side wall. The liquid inlet head 40 is connected to the movable block 14 through an elastic member 39. The bottom end of the liquid inlet head 40 extends between the two sets of movable cleaning plates 5. In use, the liquid inlet head 40 is located at the bottom end inside the injector mounting hole. When the hollow rotating shaft 21 rotates, the miniature water pump 26 works, and the liquid inlet head 40 draws out the cleaning fluid from the injector mounting hole through the suction hole on the side wall and discharges the cleaning fluid to the container for collecting liquid.

[0056] Please see the appendix Figure 5Preferably, the connecting member 27 in this embodiment includes an annular seat 271, an annular cavity 272 is provided inside the annular seat 271, the top of the annular seat 271 is hollow and rotatably provided with an annular sealing cover 273 for sealing the top of the annular seat 271, the annular sealing cover 273 and the annular seat 271 can be rotatably connected by bearings and sealing rings, the annular sealing cover 273 is fixedly sleeved on the pipe at the output end of the micro water pump 26, and the annular seat 271 is fixedly sleeved on the end of the water inlet pipe 29 away from the liquid inlet head 40. With this arrangement, the annular sealing cover 273 and the annular seat 271 can rotate relative to each other, so that the extracted liquid enters the annular cavity 272 and is then extracted by the micro water pump 26, effectively preventing the pipe from being affected by the rotation of the connecting frame 2, the middle shell 3 and other structures.

[0057] A cleaning method for diesel engine injector mounting holes using adjustable cleaning equipment, comprising the following steps:

[0058] S1: When in use, the vertical cleaning plate 4 is positioned in the injector mounting hole to be cleaned. According to the inner diameter of the injector mounting hole, the frustum-shaped drive block 7 is moved by the operating component. The frustum-shaped drive block 7 moves and pushes the two sets of L-shaped frames 19 to move. The L-shaped frames 19 drive the vertical cleaning plate 4 to move until the outer wall of the vertical cleaning plate 4 contacts the inner wall of the injector mounting hole.

[0059] S2: When the bottom of the injector mounting hole has a vertical cross-section in the shape of an inverted trapezoidal groove, the movable block 14 is moved by the operating component. The movement of the movable block 14 drives the pressure rod 16 to push the two sets of movable cleaning plates 5 to rotate relative to the vertical cleaning plate 4 through the telescopic rod 15 until the outer wall of the movable cleaning plate 5 contacts the inner wall of the inverted trapezoidal groove of the injector mounting hole.

[0060] S3: By rotating the electrical component 1, the electrical component 1 drives the connecting frame 2, the connecting frame 2 drives the middle shell 3, and the middle shell 3 drives the two sets of vertical cleaning plates 4 and the two sets of movable cleaning plates 5 to clean the injector mounting holes.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable cleaning device for diesel engine injector mounting holes, characterized in that, The device includes an electrical component (1), one end of which is connected to a connecting frame (2) and a middle shell (3) in sequence. The middle shell (3) has two sets of vertical cleaning plates (4) on the side away from the connecting frame (2). The two sets of vertical cleaning plates (4) are rotatably provided with movable cleaning plates (5) on opposite sides. The middle shell (3) is provided with an adjustment component. The adjustment assembly includes an operating component on the central shell (3), a first actuating drive component on the operating component, and a second actuating drive component. The first actuating drive component includes a frustum-shaped drive block (7) connected to the operating component. Both ends of the frustum-shaped drive block (7) are slidably abutted against L-shaped frames (19). The L-shaped frames (19) are slidably disposed in the movable opening at the bottom of the central shell (3) and connected to the inner wall of the movable opening through an elastic component (17). The other two sets of L-shaped frames (19) One end is connected to two sets of vertical cleaning plates (4); the second push-drive component includes a movable block (14) connected to the operating component. Both sides of the movable block (14) are connected to pressure rods (16) through telescopic rods (15). The two sets of pressure rods (16) are respectively movably inserted into the protrusions fixed inside the vertical cleaning plate (4). The two sets of pressure rods (16) slide against the two sets of movable cleaning plates (5). The outer wall of the pressure rod (16) is fitted with an elastic element (20). The operating component is used to drive the frustum-shaped drive block (7) so that the L-shaped frame (19) drives the two sets of vertical cleaning plates (4) to move or drive the movable block (14) to drive the telescopic rod (15) so that the pressure rod (16) pushes the movable cleaning plate (5) to rotate. The operating components include a hollow threaded rod (6) vertically disposed within the central shell (3) and a fixed cylinder (10) fixedly disposed in the middle of the central shell (3) on the side away from the connecting frame (2). The hollow threaded rod (6) is threaded through a frustum-shaped drive block (7), and one end of the hollow threaded rod (6) extends into the connecting frame (2) and is fixedly fitted with a drive handwheel (9). A threaded sleeve (13) is slidably disposed within the fixed cylinder (10), and a screw (12) is threadedly engaged within the threaded sleeve (13). One end of the screw (12) movably penetrates the central shell (3). ) and extends into the hollow threaded rod (6) and connects to the first elastic telescopic rod (11). The fixed section of the first elastic telescopic rod (11) is rotatably disposed in the hollow threaded rod (6) through a bearing. The end of the first elastic telescopic rod (11) away from the screw (12) extends to the top of the second drive handwheel (18) and is provided with the second drive handwheel (18). The end of the threaded sleeve (13) away from the screw (12) is connected to the movable block (14). The second drive handwheel (18) is provided with a locking block, and the first drive handwheel (9) has multiple sets of slots for the locking block to be inserted in a circular array. The frustum-shaped drive block (7) is connected to the inner wall of the central shell (3) via a telescopic rod (8).

2. The cleaning equipment according to claim 1, characterized in that: The electrical component (1) includes a housing, a rotary drive unit disposed within the housing, a liquid supply unit, and a water intake unit; The rotary drive unit is used to drive the connecting frame (2) to rotate, the liquid supply unit is used to supply cleaning liquid into the vertical cleaning plate (4) and the movable cleaning plate (5), and the water inlet unit is used to extract the cleaning liquid.

3. The cleaning equipment according to claim 2, characterized in that: Both sets of movable cleaning plates (5) have an assembly recess (32) at their bottom inner ends. A movable plate (30) is slidably mounted inside the assembly recess (32). One end of the movable plate (30) is connected to the inner wall of one side of the assembly recess (32) by a connecting spring. A rack (31) is slidably mounted on the movable plate (30). One end of the rack (31) is connected to one end of the movable plate (30) by an elastic telescopic rod (35). The rack (31) is driven by the liquid supply unit to move the movable plate (30). The movable plate (30), the movable cleaning plate (5), and the vertical cleaning plate (4) are all provided with hollow plates (36) that communicate with the liquid supply section on their outer sides. The hollow plates (36) are uniformly provided with bristles (38) on their outer sides and also have seepage holes for wetting the bristles (38). The hollow plates (36) on the movable plate (30) and the movable cleaning plate (5) are connected to each other through a first connecting pipe (37), and the hollow plates (36) on the movable cleaning plate (5) and the vertical cleaning plate (4) are connected to each other through a second connecting pipe.

4. The cleaning equipment according to claim 3, characterized in that: The rotary drive unit includes a hollow rotating shaft (21) disposed inside the housing. One end of the hollow rotating shaft (21) movably passes through the inner side of the housing and is connected to the connecting frame (2). A micro rotating device (23) is disposed inside the housing. The output end of the micro rotating device (23) is provided with a small gear (25), and the outer wall of the hollow rotating shaft (21) is provided with a large gear that meshes with the small gear (25).

5. The cleaning equipment according to claim 4, characterized in that: The liquid supply unit includes a miniature booster pump (24) housed within a casing and a diverter pipe (28) connected to one end of a hollow rotating shaft (21). The miniature booster pump impeller inside the miniature booster pump (24) is connected to the output end of a miniature rotating device (23). The output end of the miniature booster pump (24) is connected to a hollow sleeve (22), which is rotatably connected to the other end of the hollow rotating shaft (21). The diverter pipe (28) has two water delivery ends. Two water inlets pass through two sets of movable cleaning plates (5) and extend into the assembly recess (32) to communicate with the water inlet of the guide shell (33) fixed in the assembly recess (32). The guide shell (33) is provided with a follower impeller. One end of the impeller shaft of the follower impeller passes through the guide shell (33) and is provided with a toothed gear (34) that meshes with the rack (31). The water outlet of the guide shell (33) is connected to the hollow plate (36) on the movable cleaning plate (5) through a pipe.

6. The cleaning equipment according to claim 5, characterized in that: The water intake section includes a miniature water pump (26) located inside the housing. The impeller shaft of the impeller inside the miniature water pump extends to the outside of the miniature water pump (26) and meshes with a large gear through a small gear. The output end of the miniature water pump (26) is connected to a water intake pipe (29) through a pipe and a connecting piece (27). The connecting piece (27) is fixedly mounted on the connecting frame (2) and fixedly sleeved on one end of the hollow rotating shaft (21). The other end of the water intake pipe (29) is connected to a liquid intake head (40) with a water suction hole on the side wall. The liquid intake head (40) is connected to the movable block (14) through an elastic member (39). The bottom end of the liquid intake head (40) extends between two sets of movable cleaning plates (5).

7. The cleaning equipment according to claim 6, characterized in that: The connecting member (27) includes an annular seat (271), an annular cavity (272) is provided inside the annular seat (271), the top of the annular seat (271) is hollow and rotatably provided with an annular sealing cover (273) for sealing the top of the annular seat (271), the annular sealing cover (273) is fixedly sleeved on the pipe at the output end of the micro water pump (26), and the annular seat (271) is fixedly sleeved on the end of the water inlet pipe (29) away from the liquid inlet head (40).

8. A cleaning method for an adjustable cleaning device for diesel engine injector mounting holes, utilizing the cleaning device as described in any one of claims 1-7, characterized in that: Includes the following steps: S1: When in use, the vertical cleaning plate (4) is positioned in the injector mounting hole to be cleaned. According to the inner diameter of the injector mounting hole, the frustum-shaped drive block (7) is moved by the operating component. The frustum-shaped drive block (7) moves and pushes the two sets of L-shaped frames (19) to move. The L-shaped frames (19) drive the vertical cleaning plate (4) to move until the outer wall of the vertical cleaning plate (4) contacts the inner wall of the injector mounting hole. S2: When the bottom of the injector mounting hole has a vertical cross section in the shape of an inverted trapezoidal groove, the movable block (14) is driven to move by the operating component. The movement of the movable block (14) drives the pressure rod (16) through the telescopic rod (15) to rotate the two sets of movable cleaning plates (5) relative to the vertical cleaning plate (4) until the outer wall of the movable cleaning plate (5) contacts the inner wall of the inverted trapezoidal groove of the injector mounting hole. S3: By rotating the electrical component (1), the electrical component (1) drives the connecting frame (2), the connecting frame (2) drives the middle shell (3), and the middle shell (3) drives the two sets of vertical cleaning plates (4) and the two sets of movable cleaning plates (5) to clean the injector mounting hole.

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