A type of lift-up dishwasher

Abstract

This invention discloses a lift-up dishwasher, including a housing, with mounting boxes symmetrically fixed to the upper sidewalls of the housing, and further including a graded lifting mechanism and a drive mechanism; the graded lifting mechanism includes a fixed plate, graded rails, sliding pins, a vertical moving frame, a rotating frame, and a top rod. The fixed plates are symmetrically fixed to the rear sidewalls of the housing. Graded rails are symmetrically opened on the opposite inner sides of the two fixed plates, and sliding pins are slidably connected inside the four graded rails. A vertical moving frame is fixedly connected to one end of the four sliding pins facing the center of the housing. A rotating frame is rotatably connected to the rear side of the two rear sliding pins. A top rod is rotatably connected to the lower middle part of the rotating frame through a hinge support. A dish rack is placed inside the vertical moving frame. This lift-up dishwasher frees up extra space for large dishes, making them easier to wash.

Description

Technical Field

[0001] This invention relates to the field of dishwasher technology, specifically a lift-type dishwasher. Background Technology

[0002] A dishwasher is a household appliance used to automatically clean dishes. It uses high-temperature, high-pressure water jets to thoroughly rinse the surface of the dishes, thus achieving a cleaning effect. Dishwashers can not only effectively remove grease but also kill bacteria in a high-temperature environment, ensuring the hygiene of the dishes.

[0003] In the prior art, patent publication number CN217905665U discloses a washing machine, including a base, a mounting base, and a housing mounted on top of the base. A side brush assembly is connected between the base and the housing. A first motor for driving the side brush assembly to rotate is connected to the housing. A connecting rod is hinged to the front side of the base. The mounting base is fixed to the front end of the connecting rod. A disc brush assembly is connected below the mounting base, and a second motor for driving the disc brush assembly to rotate is connected above the mounting base. A telescopic push rod is hinged to the housing. The lower end of the telescopic push rod is hinged to the front end of the connecting rod. A movable wheel for easy movement is installed below the base.

[0004] In actual use, the dishwashers mentioned above need to be placed under the cabinet, which is inconvenient to bend over to place and there is not enough space to wash pots. Therefore, we propose a lift-up dishwasher. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a lift-up dishwasher that frees up extra space for large dishes, making them easier to clean, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lifting dishwasher, including a shell, with mounting boxes symmetrically fixedly connected to the upper sidewalls of the shell, and further including a graded lifting mechanism and a drive mechanism;

[0007] The grading and lifting mechanism includes a fixed plate, grading rails, sliding pins, a vertical moving frame, a rotating frame, and a top rod. The fixed plate is symmetrically fixed to the rear side wall of the outer shell. Grading rails are symmetrically opened on the opposite inner sides of the two fixed plates. Sliding pins are slidably connected inside the four grading rails. A vertical moving frame is fixedly connected to one end of the four sliding pins facing the center of the outer shell. A rotating frame is rotatably connected to the rear side of the two sliding pins on the rear side. A top rod is rotatably connected to the lower middle part of the rotating frame through a hinge support. A bowl rack is placed inside the vertical moving frame.

[0008] Drive mechanism: It is located inside the lower side of the outer shell. The graded lifting mechanism is rotatably connected to the drive mechanism, freeing up extra space for large vessels and making them easier to clean.

[0009] Furthermore, a controller is fixedly connected to the upper surface of the mounting box on the right. The input terminal of the controller is electrically connected to an external power source to control the normal operation of each electrical appliance.

[0010] Furthermore, the graded lifting mechanism also includes vertical rails, vertical slides, and connecting frames. The vertical rails are symmetrically and fixedly connected to the rear sidewall of the outer shell. Vertical slides are slidably connected inside the two vertical rails. A connecting frame is fixedly connected to the front side of the two vertical slides. The middle part of the upper surface of the connecting frame is fixedly connected to the lower end of the top rod to realize the guiding function.

[0011] Furthermore, the drive mechanism includes a rotating shaft, a first crank arm, and a second crank arm. The rotating shaft is rotatably connected to the lower side of the rear wall of the housing via a bearing. The first crank arm is fixedly connected to the front end of the rotating shaft. The second crank arm is rotatably connected to the upper side of the first crank arm. The upper end of the second crank arm is also rotatably connected to the middle of the lower side of the connecting frame via a hinge support, thereby realizing the transmission function.

[0012] Furthermore, the drive mechanism also includes a rear drive chamber, a worm gear, a worm, and a motor. The rear drive chamber is fixedly connected to the lower rear side of the housing. The rear end of the rotating shaft extends into the interior of the rear drive chamber, and the rear end of the rotating shaft is fixedly connected to the worm gear. A worm is rotatably connected between the lower sides of the left and right inner walls of the rear drive chamber. The worm gear meshes with the worm. A motor is fixedly connected to the left side of the rear drive chamber. The output shaft of the motor is fixedly connected to the right end of the worm. The input end of the motor is electrically connected to the output end of the controller to realize the drive function.

[0013] Furthermore, the drive mechanism also includes an angle sensor, which is fixedly connected to the middle of the rear side wall of the rear drive chamber. The measuring rotor of the angle sensor is fixedly connected to the rear end of the rotating shaft. The angle sensor is bidirectionally electrically connected to the controller to measure the rotation angle of the rotating shaft in real time.

[0014] Furthermore, a spray pipe is fixedly connected to the lower side wall of the housing, and a washing pump is fixedly connected inside the mounting box on the left side. The water inlet end of the spray pipe is connected to the water outlet of the washing pump. The water inlet pipe of the washing pump extends to the bottom of the housing. A float water level switch is fixedly connected to the lower side wall of the housing. The float water level switch is bidirectionally electrically connected to the controller to realize the function of spray cleaning.

[0015] Furthermore, a heating tube is fixedly connected to the lower side wall of the outer shell, and a thermometer is fixedly connected to the lower inner side of the outer shell. The input end of the heating tube is electrically connected to the output end of the controller, and the thermometer and the controller are bidirectionally electrically connected to achieve the function of temperature control.

[0016] Furthermore, a water inlet pipe is provided on the upper left side of the outer casing, and a water outlet pipe is provided on the lower left side of the outer casing. Both the water inlet pipe and the water outlet pipe extend into the interior of the outer casing. Solenoid valves are connected in series in the middle of the water outlet pipe and the water inlet pipe respectively. The water inlet pipe is connected to an external water supply device. The input ends of the two solenoid valves are electrically connected to the output end of the controller to realize the functions of water inlet and water outlet.

[0017] Furthermore, a cover plate is rotatably connected to the upper rear side of the outer casing to achieve a sealing function.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: This lifting dishwasher has the following advantages:

[0019] 1. The lid is located on the upper side of the outer shell. By opening the lid, the dish rack can be moved upwards. When the dish rack moves upwards, it can extend forward to facilitate the placement of dishes and chopsticks. It can be lowered after washing.

[0020] 2. The vertical moving frame is driven by a crank-connecting rod structure. When there is not enough space for washing large utensils such as pots, the bowl rack is controlled to move downward, compressing the space under the outer shell and making more space for large utensils to be washed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the present invention;

[0023] Figure 3 This is a schematic diagram of the outer casing of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the graded lifting mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the rear view structure of the present invention;

[0026] Figure 6 This is an enlarged structural diagram of point A in the present invention;

[0027] Figure 7 This is a partial structural schematic diagram of the graded lifting machine and drive mechanism of the present invention.

[0028] In the diagram: 1. Outer shell, 2. Mounting box, 3. Stage lifting mechanism, 31. Fixing plate, 32. Stage track, 33. Sliding pin, 34. Vertical moving frame, 35. Rotating frame, 36. Vertical track, 37. Vertical slide, 38. Connecting frame, 39. Top rod, 4. Drive mechanism, 41. Rotating shaft, 42. First crank arm, 43. Second crank arm, 44. Rear drive chamber, 45. Worm gear, 46. Worm, 47. Motor, 48. Angle sensor, 5. Dish rack, 6. Spray pipe, 7. Washing pump, 8. Float water level switch, 9. Heating tube, 10. Thermometer, 11. Inlet pipe, 12. Outlet pipe, 13. Cover plate, 14. Controller. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-7 This embodiment provides a technical solution: a lifting dishwasher, including a shell 1, with mounting boxes 2 symmetrically fixedly connected to the upper sidewalls of the shell 1, and also including a graded lifting mechanism 3 and a drive mechanism 4;

[0031] A cover plate 13 is rotatably connected to the upper rear side of the outer casing 1. When the dishwasher is needed, we can manually open the cover plate 13. The inner side of the cover plate 13 and the opening of the outer casing 1 are fixedly connected with sealing strips. When the cover plate 13 is fastened, the sealing strip on the cover plate 13 contacts the sealing strip on the outer casing 1 to achieve the sealing function.

[0032] A controller 14 is fixedly connected to the upper surface of the mounting box 2 on the right side, and the input terminal of the controller 14 is electrically connected to an external power supply.

[0033] A spray pipe 6 is fixedly connected to the lower side wall of the outer casing 1. A washing pump 7 is fixedly connected inside the mounting box 2 on the left side. The water inlet end of the spray pipe 6 is connected to the water outlet of the washing pump 7. The water inlet pipe of the washing pump 7 extends to the bottom of the outer casing 1 (the water inlet on the lower side of the water inlet pipe is equipped with a filter screen, specifically, the filter screen is a cylindrical filter screen. First, the filter screen is movably sleeved on the water inlet on the lower side of the water inlet pipe, and then fixed with conventional pipe clamps in the existing technology, so that the filter screen can be detachably installed at the water inlet on the lower side of the water inlet pipe. In actual use, after each completion During a dishwashing operation, we need to clean the debris attached to the filter screen to prevent clogging. A float level switch 8 is fixedly connected to the lower side wall of the outer casing 1. The float level switch 8 is bidirectionally electrically connected to the controller 14. (The float level switch 8 uses the principle of buoyancy and magnetic coupling to detect the water level. It includes: 1. A magnetic float, a hollow float ball with a built-in ring-shaped permanent magnet, less dense than water, floating with the liquid surface; 2. A guide tube: non-magnetic stainless steel, with a fixed reed switch inside. The reed switch has two magnetic metal springs inside the sealed glass tube, disconnecting when there is no magnetic field.) (Normally open) or closed (Normally closed), when the water level rises, the float rises with the water surface, the internal magnet approaches the high-position reed switch in the conduit, the magnetic field magnetizes the reed and attracts it, the contact state flips (normally open / closed or normally closed / open), and then outputs a "high water level" signal. When the water level drops, the float moves down, the magnet moves away from the reed switch, the magnetic field disappears, the reed returns to its original state due to its own elasticity, and the contact returns to its original state, outputting a "low water level" signal. Adding detergent to the inside of the outer casing 1 allows control of the controller 14 and the solenoid valve on the upper side of the external water supply equipment to open, thus opening the external... Purified water is introduced into the interior of the outer casing 1 through the water outlet pipe 12. During this time, the controller 14 can be adjusted, and the float water level switch 8 will operate. The float water level switch 8 measures the water level inside the outer casing 1 in real time. When the water level reaches the specified threshold, the controller 14 can be adjusted, and the washing pump 7 will operate. The washing pump 7 pumps the water at the bottom of the outer casing 1 into the interior of the spray pipe 6 and sprays it out along the spray head on the upper side of the spray pipe 6, continuously rinsing the bowls and chopsticks inside the dish rack 5. During this time, the sprayed water will fall back into the interior of the outer casing 1 and will accelerate the dissolution of the detergent.

[0034] Among them, such as Figure 2-3As shown, a heating tube 9 is fixedly connected to the lower side wall of the outer casing 1, and a thermometer 10 is fixedly connected to the lower inner side of the outer casing 1. The input end of the heating tube 9 is electrically connected to the output end of the controller 14, and the thermometer 10 is bidirectionally electrically connected to the controller 14. During this period, the controller 14 controls the operation of the heating tube 9 and the thermometer 10. The thermometer 10 measures the temperature of the purified water in real time, while the heating tube 9 heats the purified water in real time, controlling the temperature of the purified water at a specified threshold to continuously perform the dishwashing operation. The heating tube 9 is a PTC heating tube. The core working principle is to utilize the characteristic that the resistance of PTC ceramic material (positive temperature coefficient thermistor) changes rapidly with temperature. It includes a PTC ceramic core (core heating element), a metal shell (mostly stainless steel), insulating and thermally conductive filler (magnesium oxide powder, etc.), and electrode leads (power supply connection) to achieve automatic constant temperature. Self-limiting heating, start-up heating: At the initial power-on, the PTC element has a low temperature, low resistance, and high current, rapidly heating up with high power. Automatic temperature control: When the temperature approaches the Curie temperature, the resistance increases sharply and the current decreases sharply, and the heating power automatically drops to the heat preservation level. The thermometer 10 can use a PT100 temperature sensor, which is a temperature resistance sensor based on the change of platinum metal resistance with temperature. The core principle is to convert temperature into a precisely measurable resistance signal. Temperature changes cause changes in the resistivity of the platinum wire, and the resistance value changes accordingly (resistance increases when heating up and decreases when cooling down). It includes a platinum resistance temperature sensing element, fine platinum wire wound or ceramic, lead wire, encapsulated insulating skeleton (glass, ceramic or mica, used to fix the platinum wire, insulation, high temperature resistance), protective sleeve (stainless steel, to prevent mechanical damage and corrosion) and junction box (the box on the top, which contains terminal blocks).

[0035] Among them, such as Figure 1-2 As shown, a water inlet pipe 11 is provided on the upper left side of the outer casing 1, and a water outlet pipe 12 is provided on the lower left side of the outer casing 1. Both the water outlet pipe 12 and the water inlet pipe 11 extend into the interior of the outer casing 1. Solenoid valves are connected in series in the middle of the water outlet pipe 12 and the water inlet pipe 11 respectively. The water inlet pipe 11 is connected to an external water supply device (the water inlet pipe 11 is a rigid pipe, and the flexible pipe of the external water supply device, such as a plastic flexible pipe, is sleeved on the outside of the end of the water inlet pipe 11). The input ends of the two solenoid valves are electrically connected to the output end of the controller 14.

[0036] Among them, such as Figure 4As shown, the grading lifting mechanism 3 includes a fixed plate 31, grading rails 32, sliding pins 33, a vertical moving frame 34, a rotating frame 35, and a top rod 39. The fixed plates 31 are symmetrically fixed to the rear sidewalls of the outer casing 1. Grading rails 32 are symmetrically opened on the opposite inner sides of the two fixed plates 31. Sliding pins 33 are slidably connected inside the four grading rails 32. A vertical moving frame 34 is fixedly connected to one end of the four sliding pins 33 facing the center of the outer casing 1. The rear sides of the two sliding pins 33 are rotatably connected to... A rotating frame 35 is provided, with a top rod 39 rotatably connected to the lower middle part of the rotating frame 35 via a hinge support. A bowl rack 5 is placed inside the vertical moving frame 34. The graded lifting mechanism 3 also includes a vertical track 36, a vertical slide 37, and a connecting frame 38. The vertical track 36 is symmetrically fixed to the rear side wall of the outer shell 1. The two vertical tracks 36 are slidably connected to the interior of the vertical slide 37 respectively. A connecting frame 38 is fixedly connected to the front side of the two vertical slides 37. The middle part of the upper surface of the connecting frame 38 is fixedly connected to the lower end of the top rod 39.

[0037] Among them, such as Figure 4 As shown in Figures 6-7, the drive mechanism 4 is located inside the lower side of the housing 1. The graded lifting mechanism 3 is rotatably connected to the drive mechanism 4. The drive mechanism 4 includes a rotating shaft 41, a first crank arm 42, and a second crank arm 43. The rotating shaft 41 is rotatably connected to the lower side of the rear wall of the housing 1 via bearings. The front end of the rotating shaft 41 is fixedly connected to the first crank arm 42. The upper side of the first crank arm 42 is rotatably connected to the second crank arm 43. The upper end of the second crank arm 43 is also rotatably connected to the middle of the lower side of the connecting frame 38 via a hinge support. The drive mechanism 4 also includes a rear drive chamber 44, a worm gear 45, a worm 46, and a motor 47. The rear drive chamber 44 is fixedly connected to the housing. On the lower rear side of the rear side of 1, the rear end of the rotating shaft 41 extends into the interior of the rear drive chamber 44. The rear end of the rotating shaft 41 is fixedly connected to a worm gear 45. The worm gear 45 and the worm 46 are located inside the rear drive chamber 44 to avoid dust and other contamination. At the same time, the rear drive chamber 44 can be detached and installed by bolts, making it more convenient to maintain the worm gear 45 and the worm 46. The worm 46 is rotatably connected between the lower left and right inner walls of the rear drive chamber 44. The worm gear 45 is meshed with the worm 46. The left side of the rear drive chamber 44 is fixedly connected to a motor 47. The output shaft of the motor 47 is fixedly connected to the right end of the worm 46. The input end of the motor 47 is electrically connected to the output end of the controller 14.

[0038] The drive mechanism 4 also includes an angle sensor 48, which is fixedly connected to the middle of the rear side wall of the rear drive chamber 44. The measuring rotor of the angle sensor 48 is fixedly connected to the rear end of the rotating shaft 41, and the angle sensor 48 is bidirectionally electrically connected to the controller 14.

[0039] Both the graded lifting mechanism 3 and the drive mechanism 4 are made of 304 stainless steel, and the connecting parts can use waterproof bearings (the waterproof bearing has a sealing ring between the inner and outer rings on one or both sides of the bearing, the inner side of the sealing ring is in the shape of an annular groove, and a spring hoop is sleeved on the annular groove wall near the inner ring of the bearing. The waterproof bearing can discharge a small amount of water that enters through the outer sealing structure in time through the drain hole before it reaches the sealing structure near the bearing on the same side, so that a small amount of water can enter through the outer sealing structure. The waterproof bearing is made of bearing steel and uses tight contact seals). Then, the controller 14 can be adjusted to operate the motor 47. The output shaft of the motor 47 rotates clockwise, which drives the worm gear 46 to rotate counterclockwise, which in turn drives the rotating shaft 41 to rotate clockwise through the worm wheel 45 (the angle sensor 48 is a potentiometer-type angle sensor, which is essentially a rotary variable resistor that converts mechanical angle changes into resistance / voltage changes, mainly consisting of three parts). Composition: 1. Resistor: a section of arc-shaped resistive material; 2. Sliding brush (moving contact): rotates together with the rotating shaft 41; 3. Three leads: the two ends are connected to the power supply, and the middle is the output tap. When the rotating shaft 41 rotates, the brush slides on the resistive body, changing the voltage division ratio and applying a fixed voltage across the resistor. The rotating shaft 41 drives the brush to rotate by an angle, and the brush divides the resistor into two segments, forming a voltage divider circuit. The middle tap outputs voltage. The larger the angle, the higher (or lower) the output voltage. This causes the end of the first crank arm 42 to rotate clockwise around the rotating shaft 41. When the end of the first crank arm 42 rotates from the left side to the upper left side and rotates 45° clockwise, the end of the first crank arm 42 presses against the second crank arm 43, causing the lower end of the second crank arm 43 to rotate clockwise around the rotating shaft 41 and rotate 45° clockwise. The upper end of the second crank arm 43 presses against the connecting frame 38 and moves upward, thereby causing the connecting frame 38 to move upward.

[0040] During this period, the rotating frame 35 moves upward, which in turn moves the vertical moving frame 34 upward, causing the bowl rack 5 inside the vertical moving frame 34 to move upward. Then we can place the bowls and chopsticks inside the bowl rack 5. After completing the dishwashing operation, we can adjust the controller 14, and the solenoid valve on the lower side will operate to drain the water inside the outer casing 1. Then we can open the cover 13, and the rotating shaft 41 continues to rotate clockwise by 45°. When the end of the first crank arm 42 rotates from the upper left side to the uppermost side and rotates clockwise by 45°, the end of the first crank arm 42 presses against the second crank arm 43, thereby causing the lower end of the second crank arm 43 to rotate clockwise around the rotating shaft 41 by 45°. The upper end of the second crank arm 43 presses against the connecting frame 38 and continues to move upward, pressing against the rotating frame 35 and continuing to move upward. At this time, the sliding pin 33 will continue to move upward inside the graded track 32 until the sliding pin 33 slides from the longitudinal section of the graded track 32 into the inclined section. The vertical moving frame 34 will move obliquely forward and upward and extend out to facilitate the removal of bowls and chopsticks inside the dish rack 5. During this period, the rotating frame 35 will change counterclockwise at the hinge point with the hinge support of the top rod 39, and the vertical moving frame 34 will rotate counterclockwise along the central axis of the two sliding pins 33 on the rear side. When washing large items, such as pots, in the pot washing mode, the vertical moving frame 34 inside the dishwasher will move upward. The specific operation is as follows:

[0041] The controller 14 operates, and the motor 47 rotates counterclockwise, causing the worm gear 46 to rotate clockwise. This, in turn, drives the rotating shaft 41 to rotate counterclockwise via the worm wheel 45. Consequently, the end of the first crank arm 42 rotates counterclockwise around the rotating shaft 41. When the end of the first crank arm 42 rotates from the left to the upper left, having rotated 45° counterclockwise, it pulls the second crank arm 43, causing the lower end of the second crank arm 43 to rotate counterclockwise around the rotating shaft 41 by 45°. Meanwhile, the upper end of the second crank arm 43 pushes against the connecting frame 38 and moves it upward, causing the connecting frame 38 to move downward. During this process, it pushes against the rotating frame 35 and moves it downward, causing the vertical moving frame 34 to move downward. This causes the dish rack 5 inside the vertical moving frame 34 to move downward, and the dish rack 5 also moves downward. At this point, the large pot can be placed inside the dish rack 5 for the washing operation described above.

[0042] The working principle of the lifting dishwasher provided by this invention is as follows: When the dishwasher is needed, the cover 13 can be manually opened, and then the controller 14 can be activated. The motor 47 will operate, and the output shaft of the motor 47 will rotate clockwise, thereby driving the worm gear 46 to rotate counterclockwise. This, in turn, drives the rotating shaft 41 to rotate clockwise through the worm wheel 45, which in turn drives the end of the first crank arm 42 to rotate clockwise around the rotating shaft 41. When the end of the first crank arm 42 rotates from the left side to the upper left side and rotates clockwise for 4 seconds... 5°, the end of the first crank arm 42 abuts against the second crank arm 43, thereby causing the lower end of the second crank arm 43 to rotate clockwise and 45° around the rotating shaft 41, while the upper end of the second crank arm 43 abuts against the connecting frame 38 and moves upward, thereby driving the connecting frame 38 to move upward. During this period, it abuts against the rotating frame 35 and moves upward, thereby driving the vertical moving frame 34 to move upward, driving the bowl rack 5 inside the vertical moving frame 34 to move upward. Then we can place the bowls and chopsticks inside the bowl rack 5 and cover it with the cover plate 13.

[0043] To begin the dishwashing process, detergent powder is added to the interior of the outer casing 1. Then, the controller 14 and the solenoid valve on the upper side of the external water supply device are opened, allowing purified water to be introduced into the interior of the outer casing 1 through the outlet pipe 12. During this time, the controller 14 is activated, and the float water level switch 8 operates. The float water level switch 8 measures the water level inside the outer casing 1 in real time. When the water level reaches the specified threshold, the controller 14 is activated, and the washing pump 7 operates. The washing pump 7 pumps water from the bottom of the outer casing 1 into the spray pipe 6 and sprays it out along the spray head on the upper side of the spray pipe 6, continuously rinsing the dishes and utensils inside the dish rack 5. During this time, the sprayed water falls back into the interior of the outer casing 1, accelerating the dissolution of the detergent powder. Meanwhile, the controller 14 controls the operation of the heating element 9 and the thermometer 10. The thermometer 10 measures the temperature of the purified water in real time, while the heating element 9 heats the purified water in real time, controlling the temperature of the purified water at the specified threshold to continuously carry out the dishwashing process.

[0044] After the dishwashing process is complete, we can adjust the controller 14, and the lower solenoid valve will operate to drain the water from inside the outer casing 1. Then, we can open the cover 13, and the rotating shaft 41 will continue to rotate clockwise by 45°. When the end of the first crank arm 42 rotates from the upper left to the uppermost side and then rotates clockwise by 45°, the end of the first crank arm 42 will press against the second crank arm 43, causing the lower end of the second crank arm 43 to rotate clockwise around the rotating shaft 41 by 45°. Meanwhile, the upper end of the second crank arm 43 will press against the connecting bracket 38 and continue to move upward, pressing against the rotating bracket 35 and continuing to move upward. When the sliding pin 33 moves upward inside the graded track 32, it will continue to move upward until the sliding pin 33 slides from the longitudinal section of the graded track 32 into the inclined section. At this time, the vertical moving frame 34 will move diagonally forward and upward and extend to facilitate the removal of bowls and chopsticks inside the dish rack 5. During this period, the rotating frame 35 will change counterclockwise at the hinge point with the hinge support of the top rod 39, and the vertical moving frame 34 will rotate counterclockwise along the central axis of the two sliding pins 33 on the rear side. When washing large items, such as pots, in the pot washing mode, the vertical moving frame 34 inside the dishwasher will move upward. The specific operation is as follows:

[0045] The controller 14 operates, and the motor 47 rotates counterclockwise, causing the worm gear 46 to rotate clockwise. This, in turn, drives the rotating shaft 41 to rotate counterclockwise via the worm wheel 45. Consequently, the end of the first crank arm 42 rotates counterclockwise around the rotating shaft 41. When the end of the first crank arm 42 rotates from the left to the upper left, having rotated 45° counterclockwise, it pulls the second crank arm 43, causing the lower end of the second crank arm 43 to rotate counterclockwise around the rotating shaft 41 by 45°. Meanwhile, the upper end of the second crank arm 43 pushes against the connecting frame 38 and moves it upward, causing the connecting frame 38 to move downward. During this process, it pushes against the rotating frame 35 and moves it downward, causing the vertical moving frame 34 to move downward. This causes the dish rack 5 inside the vertical moving frame 34 to move downward, and the dish rack 5 also moves downward. At this point, the large pot can be placed inside the dish rack 5 for the washing operation described above.

[0046] It is worth noting that the core chip of the controller 14 disclosed in the above embodiments is a single-chip microcomputer, specifically the STC89C52. In actual use, the controller 14 can be placed inside the mounting box 2 on the right side to give it a certain waterproof function. The motor 47, angle sensor 48, washing pump 7, float level switch 8, thermometer 10 and solenoid valve can be freely configured according to the actual application scenario. It is recommended to use a 57 series stepper motor for motor 47, an ASRS22 model angle sensor potentiometer for angle sensor 48, and an AC series dishwasher washing pump for washing pump 7. The controller 14 controls the operation of motor 47, angle sensor 48, float level switch 8, thermometer 10 and solenoid valve using methods commonly used in the prior art.

[0047] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A lifting dishwasher, comprising a housing (1), wherein mounting boxes (2) are symmetrically fixedly connected to the upper sidewalls of the housing (1), characterized in that: It also includes a graded lifting mechanism (3) and a drive mechanism (4); The graded lifting mechanism (3) includes a fixed plate (31), a graded track (32), a sliding pin (33), a vertical moving frame (34), a rotating frame (35), and a top rod (39). The fixed plate (31) is symmetrically fixed to the rear side wall of the outer shell (1). The two fixed plates (31) are symmetrically provided with graded tracks (32) on their opposite inner sides. The interior of the four graded tracks (32) is slidably connected with sliding pins (33). The end of the four sliding pins (33) facing the center of the outer shell (1) is fixedly connected to a vertical moving frame (34). The rear side of the two sliding pins (33) is rotatably connected to a rotating frame (35). The lower middle part of the rotating frame (35) is rotatably connected to a top rod (39) through a hinge support. The interior of the vertical moving frame (34) is filled with a bowl rack (5). Drive mechanism (4): It is located on the lower inside of the housing (1), and the graded lifting mechanism (3) is rotatably connected to the drive mechanism (4).

2. A lifting dishwasher according to claim 1, characterized in that: A controller (14) is fixedly connected to the upper surface of the mounting box (2) on the right side. The input terminal of the controller (14) is electrically connected to an external power source.

3. A lifting dishwasher according to claim 2, characterized in that: The graded lifting mechanism (3) also includes a vertical track (36), a vertical slide (37) and a connecting frame (38). The vertical track (36) is symmetrically fixed to the rear side wall of the outer shell (1). The two vertical tracks (36) are slidably connected to the interior of the vertical slide (37). A connecting frame (38) is fixedly connected to the front side of the two vertical slides (37). The middle part of the upper surface of the connecting frame (38) is fixedly connected to the lower end of the top rod (39).

4. A lifting dishwasher according to claim 3, characterized in that: The drive mechanism (4) includes a rotating shaft (41), a first crank arm (42), and a second crank arm (43). The rotating shaft (41) is rotatably connected to the lower side of the rear wall of the housing (1) through a bearing. The front end of the rotating shaft (41) is fixedly connected to the first crank arm (42). The upper side of the first crank arm (42) is rotatably connected to the second crank arm (43). The upper end of the second crank arm (43) is also rotatably connected to the middle of the lower side of the connecting frame (38) through a hinge support.

5. A lifting dishwasher according to claim 4, characterized in that: The drive mechanism (4) also includes a rear drive chamber (44), a worm gear (45), a worm (46), and a motor (47). The rear drive chamber (44) is fixedly connected to the lower rear side of the outer shell (1). The rear end of the rotating shaft (41) extends into the interior of the rear drive chamber (44). The rear end of the rotating shaft (41) is fixedly connected to the worm gear (45). The worm (46) is rotatably connected between the left and right inner walls of the rear drive chamber (44). The worm gear (45) meshes with the worm (46). The left side of the rear drive chamber (44) is fixedly connected to the motor (47). The output shaft of the motor (47) is fixedly connected to the right end of the worm (46). The input end of the motor (47) is electrically connected to the output end of the controller (14).

6. A lifting dishwasher according to claim 5, characterized in that: The drive mechanism (4) also includes an angle sensor (48), which is fixedly connected to the middle of the rear side wall of the rear drive chamber (44). The measuring rotor of the angle sensor (48) is fixedly connected to the rear end of the rotating shaft (41), and the angle sensor (48) is bidirectionally electrically connected to the controller (14).

7. A lifting dishwasher according to claim 2, characterized in that: A spray pipe (6) is fixedly connected to the lower side wall of the outer shell (1), and a washing pump (7) is fixedly connected inside the mounting box (2) on the left side. The water inlet of the spray pipe (6) is connected to the water outlet of the washing pump (7). The water inlet pipe of the washing pump (7) extends to the bottom of the outer shell (1). A float water level switch (8) is fixedly connected to the lower side wall of the outer shell (1). The float water level switch (8) is bidirectionally electrically connected to the controller (14).

8. A lifting dishwasher according to claim 2, characterized in that: A heating tube (9) is fixedly connected to the lower side wall of the outer shell (1), and a thermometer (10) is fixedly connected to the lower inside of the outer shell (1). The input end of the heating tube (9) is electrically connected to the output end of the controller (14), and the thermometer (10) is bidirectionally electrically connected to the controller (14).

9. A lifting dishwasher according to claim 2, characterized in that: The upper left side of the outer shell (1) is provided with a water inlet pipe (11), and the lower left side of the outer shell (1) is provided with a water outlet pipe (12). Both the water outlet pipe (12) and the water inlet pipe (11) extend into the interior of the outer shell (1). The middle part of the water outlet pipe (12) and the water inlet pipe (11) are connected in series with solenoid valves. The water inlet pipe (11) is connected to an external water supply device. The input end of the two solenoid valves is electrically connected to the output end of the controller (14).

10. A lifting dishwasher according to claim 1, characterized in that: The upper rear side of the outer shell (1) is rotatably connected to a cover plate (13).

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