Circulating cleaning machine

Abstract

The utility model discloses a circulation cleaning machine which comprises a box body, an object placing tool, a spraying head, a liquid inlet pipe, a circulating pipe, a circulating pump and an ultrasonic generator, a containing cavity of the box body provides a cleaning place, the object placing tool is located in the containing cavity and used for placing objects to be cleaned, and a plurality of water leakage holes are formed in the bottom of the object placing tool. The spraying head is located above the storage area of the storage tool and used for spraying cleaning liquid to a cleaned object, and the liquid inlet pipe is connected with the upper portion of the box body and used for conveying the cleaning liquid into the containing cavity. One end of the circulating pipe is connected with the lower part of the box body, and the other end of the circulating pipe is connected with the spraying head; the ultrasonic generator is located on the bottom face of the containing cavity and below the containing area of the containing tool. According to the circulating cleaning machine, the postprocessor for the engine can be cleaned more efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a circulation cleaning machine. Background Art

[0002] Engine aftertreatment devices are crucial purification devices in automotive exhaust systems. For example, exhaust from diesel engines passes through a DOC (Diesel Oxidant Catalyst), a DPF (Diesel Particle Filter), and an SCR (Selective Catalytic Reduction Reactor). Exhaust from natural gas engines, for example, passes through a TWC (Three-Way Catalyst), converting harmful gases into harmless carbon dioxide, water, and nitrogen before being released into the atmosphere, thereby reducing the environmental impact of vehicle exhaust. However, factors such as sulfur, phosphorus, and silicon in fuel and oil additives, air filters, and poor driving habits can cause carbon deposits and chemical hazards to form within the aftertreatment device. This can lead to catalyst failure, such as decreased DOC efficiency and DPF overload warnings, which in turn impact vehicle emissions and fuel economy. Therefore, regular cleaning of the aftertreatment device is necessary. However, current cleaning equipment suffers from low cleaning efficiency. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a circulation cleaning machine to improve the working efficiency of an after-processor for cleaning an engine.

[0004] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0005] A circulating cleaning machine, comprising:

[0006] A box body, wherein the cavity of the box body provides a place for cleaning;

[0007] A storage tool is located in the cavity and is used to place objects to be cleaned. The bottom of the storage tool is provided with a plurality of drainage holes;

[0008] a spray head, located above the storage area of ​​the storage fixture, for spraying cleaning liquid onto the objects to be cleaned;

[0009] a liquid inlet pipe connected to the upper portion of the box body and used for conveying cleaning liquid into the cavity;

[0010] A circulation pipe is located outside the box, one end of which is connected to the lower part of the box and the other end of which is connected to the sprinkler head;

[0011] a circulation pump connected to the circulation pipe;

[0012] The ultrasonic generator is located on the bottom surface of the cavity and below the storage area of ​​the storage tool.

[0013] Optionally, the above-mentioned circulating cleaning machine includes:

[0014] Controller;

[0015] a first solenoid valve, disposed on the liquid inlet pipe and electrically connected to the controller;

[0016] The pH meter is arranged on the circulation pipe and is electrically connected to the controller.

[0017] Optionally, in the above-mentioned circulating cleaning machine, a liquid level meter is provided on the box body, and the liquid level meter is electrically connected to the controller.

[0018] Optionally, the above-mentioned circulating cleaning machine includes:

[0019] a thermometer, disposed on the bottom surface of the cavity and electrically connected to the controller;

[0020] The electric heating element is laid on the bottom surface of the cavity and is electrically connected to the controller.

[0021] Optionally, the above-mentioned circulating cleaning machine includes:

[0022] The first driving device is located outside the box and is transmission-connected to the sprinkler head for driving the sprinkler head to rotate around a vertical axis.

[0023] Optionally, the above-mentioned circulating cleaning machine includes:

[0024] The second driving device is located outside the box body and is in transmission connection with the storage tooling, and is used for driving the storage tooling to move vertically relative to the box body.

[0025] Optionally, in the above-mentioned circulation cleaning machine, the second driving device includes a first electric cylinder and a second electric cylinder symmetrically arranged on both sides of the box.

[0026] Optionally, the above-mentioned circulating cleaning machine includes:

[0027] A liquid discharge pipe, connected to the circulation pipe;

[0028] The drain valve is arranged on the drain pipe.

[0029] Optionally, in the above-mentioned circulating cleaning machine, the storage tooling includes a fence arranged around the storage area.

[0030] Optionally, in the above-mentioned circulating cleaning machine, the storage tool is provided with at least two storage areas.

[0031] According to the above technical solution, in the circulating cleaning machine provided by the present invention, the cavity of the box body provides a cleaning place, the storage fixture in the cavity is used to place the objects to be cleaned, and an ultrasonic generator is provided on the bottom surface of the cavity and below the storage area of ​​the storage fixture. At the same time, a spray head is provided above the storage area of ​​the storage fixture. The spray head is connected to the lower part of the box body through a circulation pipe, and the circulation pipe is connected to a circulation pump. Therefore, when the circulating cleaning machine is working, the cleaning liquid in the box body flows from the lower part of the box body into the circulation pipe under the action of the circulation pump, and is then transported along the circulation pipe to the spray head and sprayed down, thereby returning to the box body to complete the cycle. In this way, while the ultrasonic generator generates ultrasonic waves to ultrasonically clean the objects to be cleaned on the storage fixture, the cleaning liquid sprayed by the spray head is sprayed toward the objects to be cleaned with a certain impact force, thereby effectively improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the main view of the circulation cleaning machine provided by the embodiment of the utility model;

[0034] Figure 2 It is a top view schematic diagram of the circulation cleaning machine provided by an embodiment of the present utility model (some components are omitted).

[0035] The following are marked in the figure:

[0036] 100, storage tooling; 101, first enclosure; 102, second enclosure; 200, objects to be cleaned;

[0037] 1. First solenoid valve; 2. Second solenoid valve; 3. pH meter; 4. Third solenoid valve; 5. Circulation pump; 6. Fourth solenoid valve; 71. Fifth solenoid valve; 72. Sixth solenoid valve; 81. First spray head; 82. Second spray head; 9. Ultrasonic generator; 11. Electric heating element; 12. Liquid level gauge; 131. First electric cylinder; 132. Second electric cylinder; 14. Drive motor; 15. Active shaft; 161. First driven shaft; 162. Second driven shaft. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0039] See also Figure 1 and Figure 2 The embodiment of the present invention provides a circulating cleaning machine, comprising a housing (not marked in the figure), a storage fixture 100, a spray head, a liquid inlet pipe (not marked in the figure), a circulation pipe, a circulation pump 5 and an ultrasonic generator 9, wherein the housing cavity of the housing provides a cleaning place, the storage fixture 100 is located in the cavity for placing the objects to be cleaned 200, and a plurality of water leakage holes are provided at the bottom of the storage fixture 100. The spray head is located above the storage area of ​​the storage fixture 100 for spraying cleaning liquid onto the objects to be cleaned 200, and the liquid inlet pipe is connected to the upper part of the housing for transporting cleaning liquid into the housing cavity. The circulation pipe is located outside the housing, with one end connected to the lower part of the housing and the other end connected to the spray head, and the circulation pump 5 is connected to the circulation pipe. The ultrasonic generator 9 is located on the bottom surface of the cavity and below the storage area of ​​the storage fixture 100.

[0040] When the circulation cleaning machine is in operation, the cleaning liquid in the tank flows from the bottom of the tank into the circulation pipe under the action of the circulation pump 5. Then, it is transported along the circulation pipe to the spray head and sprayed down, completing the circulation back to the tank. The ultrasonic generator 9 generates ultrasonic waves to ultrasonically clean the object 200 on the object holding fixture 100. At the same time, the cleaning liquid sprayed from the spray head is sprayed towards the object 200 with a certain impact force, effectively improving cleaning efficiency.

[0041] In some embodiments, the top of the box can be open. In this case, the cleaning area provided by the cavity of the box can be understood as a cleaning tank. Of course, in other embodiments, the box can also be set to be closed, that is, the top of the box is not open. For example, the box includes an openable top cover, and when the circulation cleaning machine is in operation, the top of the box is closed by the top cover.

[0042] In some embodiments, the storage fixture 100 can be configured as a support structure or a hanging basket structure. The bottom of the storage fixture 100 is provided with multiple drainage holes. These holes serve to provide a channel for the cleaning liquid to flow out of the storage fixture 100. Thus, after a period of residence in the storage fixture 100, the cleaning liquid sprayed by the spray head flows through the drainage holes into the chamber of the housing. The spray head is located above the storage area of ​​the storage fixture 100. The storage area is the area on the storage fixture 100 where the objects to be cleaned 200 (e.g., DOC, DPF, SCR, and / or TWC reactor) are placed. To accelerate the flow of cleaning liquid out of the storage fixture 100, drainage holes can be located in locations corresponding to the storage area. Of course, the area with drainage holes can also be larger than the area corresponding to the storage area. For example, the drainage holes can be distributed throughout the entire bottom area of ​​the storage fixture 100. This means that the storage fixture 100 is provided with drainage holes not only in the area corresponding to the storage area, but also in the area surrounding the storage area. Furthermore, when the storage fixture 100 includes a bottom and sides, in addition to providing drainage holes at the bottom of the storage fixture 100, drainage holes may also be provided at the sides of the storage fixture 100. That is, the areas where the drainage holes are distributed include a first area located at the bottom of the storage fixture 100 and a second area located at the sides of the storage fixture 100. It is easy to understand that providing drainage holes at both the bottom and sides of the storage fixture 100 can further accelerate the flow of cleaning liquid out of the storage fixture 100.

[0043] The shape and size of the water leakage hole can be flexibly set as needed. For example, the water leakage hole can be set to a circular, square, triangular or other shape. The size of the water leakage hole can be set to about 1 cm, for example, a circular hole with a diameter of 1 cm, or a square hole with a side length of 0.8 cm. Figure 2 As shown, in some embodiments, the bottom of the storage fixture 100 can be set as a filter structure, and the mesh holes are the above-mentioned leaking holes. The use of the filter structure can filter the larger-sized debris that has been cleaned, so that these debris can be centrally processed later, and can prevent the larger debris from entering the circulation pump 5 and affecting the working efficiency of the circulation pump 5. It should be noted that the side of the storage fixture 100 should be provided with a structure to block the larger debris that has been cleaned, so as to prevent these debris from running out of the side of the storage fixture 100. For example, the surrounding sides of the storage fixture 100 can be composed of plates, and the plates are used to block the above-mentioned larger debris, or the storage fixture 100 can include a fence set around the storage area, such as Figure 1 As shown, two objects to be cleaned 200 are placed in the first enclosure 101 and the second enclosure 102 respectively. The enclosures prevent large debris from being washed from escaping. In order to further reduce the impact of the washed debris on the circulation pump 5, a filter can be installed upstream of the circulation pump 5 to enhance the filtration effect of the debris, so that the cleaning liquid entering the circulation pump 5 contains less debris.

[0044] In some embodiments, a circulating cleaning machine may include: a controller (not shown); a first solenoid valve 1 disposed in the liquid inlet pipe and electrically connected to the controller; and a pH meter 3 disposed in the circulation pipe and electrically connected to the controller. This configuration enables monitoring of the pH value of the cleaning fluid and automatic adjustment of the pH value. The pH meter 3 can detect the pH value of the flowing cleaning fluid and transmit the test results to the controller. After the circulating cleaning machine has been running for a period of time, the pH value of the cleaning fluid may change and no longer meet the requirements. In this case, the controller can control the opening of the first solenoid valve 1, thereby automatically replenishing the cleaning fluid in the tank until the pH value reported by the pH meter 3 meets the requirements (i.e., the pH value is adjusted to a predetermined range).

[0045] In some embodiments, the circulating cleaning machine may include a liquid level gauge 12 disposed within the tank, which is electrically connected to the controller. This allows the circulating cleaning machine to automatically refill the cleaning fluid to an appropriate amount based on a set value. It should be noted that the amount of cleaning fluid within the tank can be set as needed. The cleaning fluid can completely submerge the object 200 or only partially submerge the object 200. That is, the level of the cleaning fluid can be above or below the top of the object 200. For example, the level of the cleaning fluid can be located in the middle of the height of the object 200, or at a position one-third of the height from the top of the object 200 (i.e., submerging two-thirds of the height of the object 200). When the cleaning fluid completely submerges the object 200, the cleaning fluid sprayed from the spray head exerts a certain impact force, which can accelerate the flow of the cleaning fluid near the top of the object 200, thereby improving cleaning efficiency while simultaneously performing ultrasonic cleaning. When the cleaning liquid only immerses a portion of the object 200 to be cleaned, the cleaning liquid sprayed from the spray head directly cleans the portion near the top of the object 200 to be cleaned, while the portion of the object 200 to be cleaned below the liquid surface is mainly cleaned by ultrasonic waves. Spray cleaning and ultrasonic cleaning are performed together, thereby improving cleaning efficiency.

[0046] It should be noted that, during the use of the circulating cleaning machine, the liquid level of the cleaning liquid in the tank can be set to maintain a certain height, or the liquid level can be set to change height as the cleaning progresses at different stages. For example, the liquid level of the cleaning liquid can be set to always be higher than the top of the object 200 to be cleaned. In this case, the object 200 to be cleaned is first placed on the storage fixture 100, and then the circulating cleaning machine is started. At this time, the first solenoid valve 1 is opened to inject cleaning liquid into the tank until the liquid level reaches a predetermined height. Then the circulating pump 5 and the ultrasonic generator 9 start working. When the liquid level meter 12 detects that the liquid level is lower than the top of the object 200 to be cleaned, the controller controls the first solenoid valve 1 to open, thereby automatically replenishing cleaning liquid into the tank until the liquid level meets the required height. For another example, the cleaning liquid level can be set to be below the top of the object 200 to be cleaned in the first half of the cleaning process and above the top of the object 200 to be cleaned in the second half of the cleaning process. In this case, the object 200 to be cleaned is first placed on the object placement fixture 100, and then the circulation cleaning machine is started. At this time, the first solenoid valve 1 is opened to inject cleaning liquid into the tank until the liquid level reaches a first predetermined height (below the top of the object 200 to be cleaned). Then, the circulation pump 5 and the ultrasonic generator 9 are activated. After a certain cleaning time (e.g., 20 minutes), the first solenoid valve 1 is opened again to inject cleaning liquid into the tank until the liquid level reaches a second predetermined height (above the top of the object 200 to be cleaned), and cleaning continues. Of course, if the liquid level is set to change with the different stages of cleaning, the cleaning liquid level can also be set to be above the top of the object 200 to be cleaned in the first half of the cleaning process and below the top of the object 200 to be cleaned in the second half of the cleaning process. In this case, the drain valve can be used to lower the cleaning liquid level to the set height midway through the cleaning process.

[0047] In some embodiments, the circulating cleaning machine may include: a thermometer (not shown) located on the bottom surface of the chamber and electrically connected to the controller; and an electric heater 11 located on the bottom surface of the chamber and electrically connected to the controller. The thermometer is used to detect the temperature of the cleaning fluid within the chamber, and the electric heater 11 is used to heat the cleaning fluid within the chamber to a set temperature. Setting an appropriate temperature can enhance the activity of the detergent in the cleaning fluid, and the heat from the cleaning fluid is transferred to debris attached to the object 200, modifying the debris, such as by changing its hardness. Therefore, heating the cleaning fluid with the electric heater 11 can improve cleaning efficiency. In other embodiments, the cleaning fluid can be heated using other heating devices. For example, the electric heater 11 can be located on the sidewall of the chamber, either on the inner or outer surface, to achieve direct or indirect heating of the cleaning fluid. The electric heater 11 can be of various types, including a resistance wire, a heating rod, or a heating plate.

[0048] The storage area of ​​the storage tool 100 is an area corresponding to the object 200 to be cleaned, that is, one storage area corresponds to one object 200 to be cleaned. Figure 1 and Figure 2 In the exemplary embodiment shown, the storage fixture 100 is provided with two storage areas, thereby allowing two objects 200 to be cleaned simultaneously. Of course, in other embodiments, the storage fixture 100 may have more storage areas, such as three or four. In some embodiments, the circulating cleaning machine may include a first drive mechanism located outside the housing and connected to the spray head for rotating the spray head about a vertical axis. The first drive mechanism can be used to rotate the spray head while spraying, thereby forming a localized vortex and improving cleaning efficiency.

[0049] There are many options for the structure of the sprinkler head, such as a shower head shape or a water distribution pipe shape. Moreover, when there are more than two storage areas, the sprinkler heads corresponding to different storage areas can be of the same type or different types. Figure 1 and Figure 2 In the exemplary embodiment, the first spray head 81 and the second spray head 82 are both configured in the shape of a shower head. Figure 1 and Figure 2 As shown, in order to simultaneously drive the first spray head 81 and the second spray head 82 to rotate, the first driving device may include a driving motor 14, a driving shaft 15, a first driven shaft 161 and a second driven shaft 162, wherein the driving shaft 15 is directly connected to the driving motor 14, and the first driven shaft 161 and the second driven shaft 162 are respectively connected to the driving shaft 15 through a bevel gear pair. At the same time, the ends of the first driven shaft 161 and the second driven shaft 162 away from the driving shaft 15 are respectively connected to the vertical shafts where the first spray head 81 and the second spray head 82 are located through a bevel gear pair. In this way, when the driving motor 14 rotates, the first driven shaft 161 and the second driven shaft 162 are simultaneously driven by the driving shaft 15, thereby driving the vertical shafts where the first spray head 81 and the second spray head 82 are located to rotate around the vertical axis. Of course, in other embodiments, the first spray head 81 and the second spray head 82 may be respectively configured with a first motor (not shown in the figure) and a second motor (not shown in the figure). For example, Figure 2 The driving motor 14 and the driving shaft 15 are omitted, and instead the first motor is directly connected to the first driven shaft 161 , and the second motor is directly connected to the second driven shaft 162 .

[0050] In some embodiments, the circulating cleaning machine may include a second drive device, located outside the housing and in transmission connection with the storage fixture 100, for driving the storage fixture 100 to move vertically relative to the housing. The storage fixture 100 can be moved up and down under the action of the second drive device, thereby changing the distance between the object 200 to be cleaned and the spray head. When placing the object 200 to be cleaned on the storage fixture 100, the position of the storage fixture 100 can be lowered to appropriately increase the space between the storage fixture 100 and the spray head, thereby facilitating the placement of the object 200 to be cleaned on the storage fixture 100. After placing the storage fixture 100, the position of the storage fixture 100 can be raised to appropriately reduce the distance between the storage fixture 100 and the spray head. For example, the distance between the top of the object 200 to be cleaned and the spray head can be adjusted to 2 cm to 5 cm. This helps ensure that the spray head applies a strong spray impact force near the top of the object 200 to be cleaned.

[0051] like Figure 1 As shown, the second drive device can include a first electric cylinder 131 and a second electric cylinder 132 symmetrically disposed on either side of the housing. The top of the storage fixture 100 has connecting arms extending outward on both sides, which connect to the movable ends of the first and second electric cylinders 131, 132. The first and second electric cylinders 131, 132 extend or contract simultaneously, allowing the storage fixture 100 to rise or fall stably. Of course, in other embodiments, the second drive device can be configured in other forms, for example, comprising a pneumatic cylinder, or a vertically disposed lead screw and nut mechanism and a motor connected to the lead screw.

[0052] In order to facilitate the control of the operation of the circulation cleaning machine, a control valve can be installed at a pipeline location such as the circulation pipe. Figure 1 In the exemplary embodiment, a second solenoid valve 2, a fourth solenoid valve 6, a fifth solenoid valve 71 and a sixth solenoid valve 72 are arranged along the circulation pipe, wherein the second solenoid valve 2 is arranged upstream of the circulation pump 5 near the outer surface of the box body, the fourth solenoid valve 6 is arranged downstream of the circulation pump 5 near the outer surface of the box body, and the fifth solenoid valve 71 and the sixth solenoid valve 72 are respectively arranged on the branch pipes going to the first spray head 81 and the second spray head 82. The fifth solenoid valve 71 and the sixth solenoid valve 72 can respectively control the flow rate of the cleaning liquid going to the first spray head 81 and the second spray head 82, thereby adjusting the spraying speed and the magnitude of the spraying impact force.

[0053] After cleaning the object 200, it is necessary to discharge the waste liquid in the box. For this purpose, the circulating cleaning machine may include: a drain pipe, which is connected to the circulation pipe; and a drain valve, which is arranged on the drain pipe. Figure 1 As shown, the drain pipe is provided with a third solenoid valve 4 as a drain valve. After the third solenoid valve 4 is opened, the cleaning liquid in the box flows along the circulation pipe and the drain pipe to the designated waste liquid collection location. Figure 1 In the illustrated embodiment, the connection position between the drain pipe and the circulation pipe is arranged upstream of the circulation pump 5 . However, in other embodiments, the drain pipe may be connected to other positions of the circulation pipe, such as downstream of the circulation pump 5 .

[0054] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0055] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be construed in the widest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A circulating cleaning machine, characterized in that: include: A box body, wherein the cavity of the box body provides a place for cleaning; A storage tool is located in the cavity and is used to place objects to be cleaned. The bottom of the storage tool is provided with a plurality of drainage holes; a spray head, located above the storage area of ​​the storage fixture, for spraying cleaning liquid onto the objects to be cleaned; a liquid inlet pipe connected to the upper portion of the box body and used for conveying cleaning liquid into the cavity; A circulation pipe is located outside the box, one end of which is connected to the lower part of the box and the other end of which is connected to the sprinkler head; a circulation pump connected to the circulation pipe; The ultrasonic generator is located on the bottom surface of the cavity and below the storage area of ​​the storage tool.

2. The circulating cleaning machine according to claim 1, characterized in that: include: Controller; a first solenoid valve, disposed on the liquid inlet pipe and electrically connected to the controller; The pH meter is arranged on the circulation pipe and is electrically connected to the controller.

3. The circulating cleaning machine according to claim 2, characterized in that: It includes a liquid level meter arranged on the box body, and the liquid level meter is electrically connected to the controller.

4. The circulating cleaning machine according to claim 3, characterized in that: include: a thermometer, disposed on the bottom surface of the cavity and electrically connected to the controller; The electric heating element is laid on the bottom surface of the cavity and is electrically connected to the controller.

5. The circulating cleaning machine according to any one of claims 1 to 4, characterized in that: include: The first driving device is located outside the box and is transmission-connected to the sprinkler head for driving the sprinkler head to rotate around a vertical axis.

6. The circulating cleaning machine according to claim 5, characterized in that: include: The second driving device is located outside the box body and is in transmission connection with the storage tooling, and is used for driving the storage tooling to move vertically relative to the box body.

7. The circulating cleaning machine according to claim 6, characterized in that: The second driving device includes a first electric cylinder and a second electric cylinder symmetrically arranged on both sides of the box.

8. The circulating cleaning machine according to claim 5, characterized in that: include: A liquid discharge pipe, connected to the circulation pipe; The drain valve is arranged on the drain pipe.

9. The circulating cleaning machine according to claim 5, characterized in that: The storage tooling includes a fence arranged around the storage area.

10. The circulating cleaning machine according to claim 5, characterized in that: The storage tool is provided with at least two storage areas.

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