CN216705270U

CN216705270U - Engine lubrication system pulse cleaning machine

Info

Publication number: CN216705270U
Application number: CN202220949672.7U
Authority: CN
Inventors: 刘光华; 刘国平
Original assignee: Hebei Feishun Welding Equipment Co ltd
Current assignee: Hebei Feishun Welding Equipment Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-06-10
Anticipated expiration: 2032-04-24

Abstract

The utility model relates to a pulse cleaning machine for an engine lubricating system, which is characterized in that: the cleaning machine comprises a machine shell, wherein an oil pump M, a pressure reduction filter P, an electromagnetic valve A, an electromagnetic valve B, an electromagnetic valve C, a one-way valve E, an observation cup G, a filter C and corresponding pipelines are arranged in the machine shell; the oil pump M is connected with the oil pumping joint through a pipeline and is connected with an oil discharge port of an engine bottom shell through a pipeline and the oil pumping joint; the oil pump M is connected with the observation cup G through a pipeline and then divided into two paths, one path is connected with the old oil barrel through the electromagnetic valve B and the pipeline, and the other path is sequentially connected with the electromagnetic valve A, the filter C and the oil outlet joint through the pipeline and is connected with an engine oil filling port; an air source of the air pump is connected to an oil filling port of the engine sequentially through a pressure reducing filter P, an electromagnetic valve D, a one-way valve E and a pipeline, and the electromagnetic valve D is electrically connected with a pulse plate. The utility model can drive a small amount of engine oil to realize pulse type circulation cleaning of the engine by pulse airflow, and is efficient and rapid.

Description

Engine lubrication system pulse cleaning machine

Technical Field

The utility model relates to a maintenance and cleaning technology of an automobile engine lubricating system, in particular to a pulse cleaning machine of an engine lubricating system.

Background

The engine oil replacement of the engine lubrication system is an important maintenance project for vehicle maintenance, and plays a vital role in the service life and energy consumption of the engine, environmental protection and the like. The conventional method for replacing the engine oil is to unscrew an oil drain bolt of an oil pan and drain the waste engine oil by gravity, however, due to the structural particularity of an engine lubricating system, the waste engine oil in the engine lubricating system cannot be completely drained by the gravity method, and about 30% of the waste engine oil cannot be drained. After the waste engine oil which can not be discharged is mixed with the new engine oil after being replaced, the lubricating performance of the new engine oil and the service cycle of the engine oil can be greatly reduced. Currently, in general, an engine is washed once before oil is replaced in shops for regular maintenance, 4S shops, and the like. The cleaning agent is matched with suction to complete the cleaning, and some cleaning agents can be cleaned by an engine cleaning machine. The cleaning agent is used in the two conventional modes, the cleaning agent is harmful to the engine, the dissolving capacity of the engine cleaning agent is high, and if the cleaning frequency of the engine cleaning agent for the main automobile to clean the engine is too many, certain damage can be caused to the sealing element and the cylinder body in the engine. If the content of the engine cleaning agent remaining in the engine after cleaning is large, the balance of the engine oil is also affected, and the performance of the engine oil is deteriorated. And the engine cleaning machine is often higher in cost, and some small-size maintenance stations can not use. Therefore, it is very important to develop a professional device which can discharge the waste oil to be replaced in the engine lubrication system more thoroughly, can clean the whole engine lubrication system efficiently and has low cost.

After searching, we searched some prior arts close to this application and analyzed as follows:

the first item is: CN201610787740.3 cleaning agent and cleaning method for antiwear efficient engine lubricating system, the document discloses a cleaning agent and cleaning method, the steps of the cleaning method are: s1: firstly, discharging engine oil in an engine oil tank, and adding the prepared cleaning agent; s2: starting the engine, and keeping the rotating speed of the engine in the interval of 2000-2500r/min for running for 5-20 min; s3: suddenly stepping on the accelerator, quickly increasing the rotating speed of the engine to 3800-; s4: new oil is added and the engine is continuously operated for 180-240h for cleaning again.

The analysis can find that the technology has the following defects: firstly, the risk coefficient is high, the special cleaning agent has strong solubility on carbon deposition and oil sludge of an engine lubricating system, the engine is in a dynamic cleaning mode and is in a starting state, so that the caking carbon deposition has a great risk of blocking an oil passage, and secondly, the special cleaning agent needs to be developed to clean the engine in the method, the cleaning process has special operation, the engine needs to be cleaned once again after about one week, and the new engine oil and the cleaning agent consumed by two times of cleaning before and after the engine needs to be doubled, so that the waste is high and the waste is uneconomical. Moreover, the method can have residual engine oil and cleaning agent remained in the engine every time when the method is operated twice, and the engine can be adversely affected. The cleaning solution is not engine oil, and once the cleaning solution remains in the engine after cleaning, the engine oil and the cleaning solution are mixed to cause damage to the engine. And most of the cleaning solution with good quality has high cost and high price, and the cost for cleaning and replacing the engine oil once is high and is not suitable.

The second item: CN202010348446.9 "an engine cleaning system and method thereof" discloses an engine cleaning system, which comprises a cleaning pump, a recovery pump, and a cleaning liquid barrel, wherein one end of the cleaning pump is communicated with the cleaning liquid barrel through a cleaning pipeline, and the other end of the cleaning pump is communicated with a cleaning valve, a multipath communicator, and an engine oil filter interface in sequence through a cleaning pipeline; one end of the recovery pump is communicated with the cleaning liquid barrel through a recovery pipeline, and the other end of the recovery pump is sequentially communicated with the filter and the oil drain port of the oil pan of the engine through the recovery pipeline. The multi-channel communicating vessel is also sequentially communicated with the pressure regulating air valve and the compressed air source through air pipes.

The analysis shows that the technology has the following defects: 1) the cleaning system is used for cleaning the engine lubricating system through the engine oil filter interface, a special joint matched with the filter interface is required to be used when the system is applied, and the engine oil filters in the market have various models, and the engine oil filters are divided into paper filters and iron filters, so that most vehicles need to be covered by the cleaning system, a plurality of joints are required to be matched, the cost of the joints is almost as low as that of equipment when 90% of vehicle models in the market are required to be covered, and the cost accounting is low, so that the cleaning system is not beneficial to popularization and use and is not practical. 2) The system must use special cleaning liquid, and the dosage is 10 liters or more, and the cost is too high. And the special cleaning solution inevitably has certain swelling property on rubber sealing parts in the engine and damages the engine, and the damage to the parts in the engine is high due to the high using amount of the cleaning solution. 3) The system is structurally divided into two parts, one part utilizes a cleaning agent to clean an engine lubricating system, the other part recovers cleaning liquid, old engine oil and the like, and at least two pumps are needed to respectively complete cleaning and recovery; the structure and the cleaning mode of the cleaning machine cannot be cleaned and utilized circularly; the method of pulse-type surging washing of water flow by the pulse operation mode of the washing valve described in this document has low practicability because the washing effect of the pulse water flow is not significant if the pressure of the pulse water flow is not large but only slow surging, and the pulse impact flow of the water flow generated by the pulse water flow with high pressure is very violent, and the strong pulse impact water flow easily damages the engine sealing element because the engine sealing element is fragile during the washing process. Generally, the equipment has high overall cost, uses too much cleaning agent, is not practical and has lower popularization.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pulse cleaning machine for an engine lubricating system, which utilizes a pump, a pipeline, a filtering device and an engine to form a circulative passage, simultaneously mixes compressed air and a small amount of engine oil into the engine in a pulse airflow mode to realize pulse type circulation cleaning of the engine, efficiently and quickly cleans the engine, can perform pulse type purging on the engine through pressurized airflow after cleaning, and can almost completely and safely extract the engine oil remained in the engine by combining negative pressure suction of the pump to the engine.

The technical scheme of the utility model is as follows: a kind of engine lubrication system pulse cleaner, it includes the chassis, there are oil pump M, decompression filter P, electromagnetic valve A, electromagnetic valve B, electromagnetic valve D, check valve E, observation cup G, filter C, and corresponding pipeline in the chassis;

the inlet of the oil pump M is connected with an oil pumping joint through a pipeline, the oil pump M can be connected with an oil outlet of an engine bottom shell through the pipeline and the oil pumping joint, and the oil pumping joint and part of connecting pipelines extend out of the engine bottom shell;

the outlet of the oil pump M is connected with an observation cup G through a pipeline, the oil pump M is divided into two paths through the observation cup G, one path of the oil pump M is connected with an old oil barrel through an electromagnetic valve B and a corresponding pipeline, the other path of the oil pump M is sequentially connected with an electromagnetic valve A, a filter C and an oil outlet joint through pipelines, the oil outlet joint and an engine oil filling port of an engine are communicated into the engine through the oil outlet joint, and the oil outlet joint and part of connecting pipelines extend out of the shell;

the air pump air source is connected with a pipeline coming out of the filter C sequentially through the pressure reducing filter P, the electromagnetic valve D, the one-way valve E and the pipeline, pure and proper-pressure air flow is communicated into the engine through the engine oil filling port, the electromagnetic valve D is electrically connected with a pulse plate, the switching frequency of the electromagnetic valve D is controlled through the pulse plate, and the air flow drives the cleaning engine oil to be communicated into the engine together through pulse type impact air flow.

Furthermore, the control platform is arranged at the upper part of the casing, and the observation cup G is arranged on the control platform.

Further, the electrical control circuit of the utility model comprises a 12V power supply, a relay KA1, a relay KA2, a power switch K1, a pulse plate, a cleaning timing switch K2 and an old oil back-pumping and purging switch K3; the power switch K1 and a power indicator light L are connected in series between the positive terminal and the negative terminal of the power supply; the coil of the cleaning timing switch K2 and the coil of the relay KA1 are connected in series and then connected in parallel with the power indicator lamp L; a normally open contact of the relay KA1 is connected in series with a motor switch of the oil pump M and then connected in parallel with the power indicator lamp L; meanwhile, the normally open contact of the relay KA1 is connected in parallel with the power indicator lamp L after being connected in series with the positive and negative terminals of the power supply input of the pulse plate; the other normally open contact of the relay KA1 is connected in series with the electromagnetic valve A and then connected in parallel with the power indicator lamp L; the positive and negative output terminals of the pulse plate are connected in series with the electromagnetic valve D and then connected in parallel with the power indicator lamp L; a coil of the relay KA2 is connected in series with an old oil pumping and purging switch K3 and then connected in parallel with a power indicator lamp L; a normally open contact of the relay KA2 is connected in series with a motor switch of the oil pump M and then connected in parallel with the power indicator lamp L; meanwhile, the normally open contact of the relay KA2 is connected in parallel with the power indicator lamp L after being connected in series with the positive and negative terminals of the power supply input of the pulse plate; and the other normally open contact of the relay KA2 is connected with the solenoid valve B in series and then connected with the power indicator lamp L in parallel.

Furthermore, the control panel is arranged on the console, and each switch of the control circuit is arranged in the control panel.

Furthermore, the universal moving wheels are arranged at the bottom of the casing, and the corresponding handrails convenient to push are arranged at the upper part of the casing.

Furthermore, the utility model is provided with a concave cavity outside one side of the shell, and a pipeline, an oil pumping joint and an oil outlet joint which extend outside the shell are arranged in the concave cavity.

Furthermore, the detachable baffle is arranged outside the cavity, so that the cleaning machine can cover and prevent dust when not in use.

The working principle of the utility model is as follows:

when the automobile oil drain is cleaned, firstly detaching an oil drain bolt of an engine oil pan, discharging waste engine oil in the engine oil pan by using gravity, and then installing a special oil pumping joint (sold on the market, wherein the special joint is a special joint for an automobile type and can be screwed into the oil drain hole through threads) in the oil drain hole of the engine oil pan according to the automobile type after no waste oil flows out of the oil drain hole of the engine oil pan; and then an engine oil filling cover of the engine is opened, one liter of new engine oil is filled into the engine by using tools such as an oil can, an oil outlet joint (also sold on the market, the structure of the oil outlet joint is similar to that of the oil pumping joint, and the oil outlet joint can be screwed into the oil filling port) is arranged on the oil filling port, and the oil outlet joint is communicated with the oil pump through a pipeline. When the device is cleaned, the oil pump M starts to operate, new engine oil filled into the engine enters the transparent observation cup G through the oil pump M, the electromagnetic valve A is opened, and the new engine oil passes through the electromagnetic valve A and is filtered by the filter C. The engine lubricating system enters the engine through an engine oil filling port, meanwhile, the equipment is connected with an air pump air source, the air pump air source is filtered, the pressure is controlled to 2-3 kilograms, and the electromagnetic valve D is opened and closed at a set pulse frequency, so that new engine oil entering the engine can be safely and efficiently circularly cleaned in an oil-gas mixed pulse mode. After the circulation cleaning is completed, the electromagnetic valve A is closed. And the electromagnetic valve B is opened, new engine oil enters the old oil barrel of the equipment through the electromagnetic valve B, meanwhile, the electromagnetic valve D continuously controls airflow in a pulse mode to perform pulse purging in the engine through the engine oil filling port, and the waste oil which cannot be discharged by gravity in the engine lubricating system can be thoroughly discharged by negative pressure suction of the oil pump M in cooperation with purging of positive pressure pulse airflow blown in from the engine oil filling port.

The working principle of the circuit is as follows:

when the cleaning machine is used for cleaning, the power switch K1 is pressed firstly, then the cleaning timing switch K2 is pressed, at the moment, the coil of the relay KA1 supplies power, two normally open contacts of the relay KA1 are closed, the electromagnetic valve A and the oil pump M are respectively connected, and the electromagnetic valve A and the oil pump M start to work. The two power supply ports of the pulse plate are simultaneously switched on, the pulse plate works, the pulse plate outputs electric signals according to the set pulse width and pulse interval, the electric signals are connected through the two output ports of the pulse plate and control the electromagnetic valve D to start working, the electromagnetic valve D is opened and closed according to the pulse frequency, then the air flow is controlled to generate pulse type spraying, the oil is pumped by matching with the oil pump M, and the machine oil is driven by the air flow to be cleaned in a pulse mode. After the regular cleaning is finished, the cleaning timing switch K2 is automatically closed, the relay KA1 coil is powered off, two normally open contacts of the relay KA1 are opened, the electromagnetic valve A does not work, the electromagnetic valve D does not work, and the pulse plate is powered off and does not work. At this moment, press old oil pumpback and blow down switch K3, relay KA2 coil power supply, two normally open contacts of relay KA2 are closed, put through solenoid valve B all the way, put through oil pump M all the way, put through two power supply ports of pulse board all the way, pulse board work, two output port connection control solenoid valve D open and close with setting for pulse frequency, carry out the pulsed and blow down, oil pump M passes through solenoid valve B and withdraws old oil back in the old oil drum simultaneously.

The utility model has the beneficial effects that: the utility model leads the air source of an air pump to pass through a decompression filter P, an electromagnetic valve D and a one-way valve E, mixes the filtered pure air flow with proper pressure value with the engine oil in a pulse mode through a control electromagnetic valve, enters the engine, and forms the pulse type spraying and sweeping type cleaning with impact type and double air flow hydraulic pressure for the interior of the engine through the suction of an oil pump. The utility model is characterized in that the pulse airflow drives the engine oil liquid to form gas and oil bullets of gas-in-oil liquid and oil-in-oil film gas under the pumping suction, and the gas and oil bullets impact and clean the inside of the engine lubricating system in a similar explosion mode, so that stubborn oil stains, carbon deposition patches and the like in the engine can be quickly impacted into fine fragments and even fragments, the inside of the whole engine is washed and cleaned completely, and the speed is high and the efficiency is high. The gas-liquid pulse cleaning formed by the utility model is mainly gas, almost atomized and sprayed, and has large cleaning area, and because the gas flow is finer than oil liquid, a plurality of parts and places which cannot be cleaned in place in the prior art in the engine can be cleaned in place, so that the cleaning effect of the gas-liquid pulse cleaning is obviously superior to that of a plurality of cleaning modes in the prior art. When the cleaning agent is used for cleaning, only one liter of engine oil is needed, and a soaking link which is necessary in a cleaning agent mode in the prior art is not needed. The adopted engine oil and the purified gas can not cause damage to the rubber sealing element of the engine like the prior art. The carbon deposition is quickly and basically broken, and the risk that the carbon deposition falling block blocks the oil duct in the existing cleaning mode is avoided. After the oil liquid for cleaning is pumped out after cleaning is finished, the control valve is disconnected with a pipeline for circulating suction, positive-pressure pulse type purging is carried out on the engine only through high-pressure airflow, and waste oil which cannot be discharged by gravity in an engine lubricating system can be thoroughly discharged by combining negative-pressure suction of the oil pump on the engine. In reality, in general, maintenance of automobiles such as many 4S shops is performed in a manner of not treating residual engine oil after washing, which actually causes reduction of the service life of an engine. The technology of the utility model can thoroughly discharge the residual engine oil in the engine.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment 1 of a pulse washer of an engine lubrication system according to the present invention.

Fig. 2 is a schematic external structural view of an embodiment 1 of the pulse washer of the engine lubrication system according to the present invention.

Fig. 3 is a schematic diagram of an electrical control circuit of an embodiment 1 of the pulse washer of the engine lubrication system of the present invention.

Fig. 4 is a schematic external structural diagram of an embodiment 2 of the pulse washer of the engine lubrication system according to the present invention.

Fig. 5 is a schematic external structural diagram of an embodiment 3 of the pulse washer of the engine lubrication system according to the present invention.

In each figure: the system comprises a machine shell 1, an oil pumping joint 2, an old oil barrel 3, an oil outlet joint 4, an oil outlet of an engine bottom shell 5, an engine oil filling port 6, a console 7, an observation window platform 8, a switch 9 and a pipeline 10; 2a universal moving wheel, 3a handrail, 2b cavity and 3b detachable baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1, 2 and 3 show an embodiment 1 of the pulse washer of the engine lubrication system according to the present invention, which includes a housing 1, and an oil pump M, a pressure reducing filter P, an electromagnetic valve a, an electromagnetic valve B, an electromagnetic valve D, a check valve E, an observation cup G, a filter C, and a corresponding pipeline 10 are disposed in the housing 1. The inlet of the oil pump M is connected with an oil pumping joint 2 through a pipeline 10, the oil pumping joint 2 and part of the pipeline 10 extend out of the machine shell 1, and the oil pump M can be connected with an oil discharge port 5 of the engine bottom shell through the pipeline 10 and the oil pumping joint 2. The outlet of the oil pump M is connected with an observation cup G through a pipeline 10, the oil pump M is divided into two paths through the observation cup G, one path of the oil pump M is connected with the old oil barrel 3 through an electromagnetic valve B and a corresponding pipeline 10, the other path of the oil pump M is sequentially connected with an electromagnetic valve A, a filter C and an oil outlet joint 4 through the pipeline 10, and the oil outlet joint 4 can be connected with an engine oil filling port 6 of an engine. The decompression filter P is sequentially connected with an electromagnetic valve D and a one-way valve E through a pipeline 10, the one-way valve E is connected with the pipeline 10 from the filter C through the pipeline 10, decompression airflow passing through an air pump is communicated to an engine oil filling port 6, the electromagnetic valve D is electrically connected with a pulse plate, and the electromagnetic valve D is controlled by the pulse plate to enable the airflow to be communicated with cleaning engine oil together with pulse type impact airflow to clean an engine.

As shown in fig. 3, the electric control circuit of the cleaning machine of the utility model comprises a 12V power supply, a relay KA1, a relay KA2, a power switch K1, a pulse board, a cleaning timing switch K2, and an old oil back-pumping and purging switch K3; the power switch K1 and a power indicator light L are connected in series between the positive terminal and the negative terminal of the power supply; the coil of the cleaning timing switch K2 and the coil of the relay KA1 are connected in series and then connected in parallel with the power indicator lamp L; a normally open contact of the relay KA1 is connected in series with a motor switch of the oil pump M and then connected in parallel with the power indicator lamp L; meanwhile, the normally open contact of the relay KA1 is connected in parallel with the power indicator lamp L after being connected in series with the positive and negative terminals of the power supply input of the pulse plate; the other normally open contact of the relay KA1 is connected in series with the electromagnetic valve A and then connected in parallel with the power indicator lamp L; the positive and negative output terminals of the pulse plate are connected in series with the electromagnetic valve D and then connected in parallel with the power indicator lamp L; a coil of the relay KA2 is connected in series with an old oil pumping and purging switch K3 and then connected in parallel with a power indicator lamp L; a normally open contact of the relay KA2 is connected in series with a motor switch of the oil pump M and then connected in parallel with the power indicator lamp L; meanwhile, the normally open contact of the relay KA2 is connected in parallel with the power indicator lamp L after being connected in series with the positive and negative terminals of the power supply input of the pulse plate; and the other normally open contact of the relay KA2 is connected with the solenoid valve B in series and then connected with the power indicator lamp L in parallel. The pulse plate can be most conventional in the market, and is purchased from a company in Shenzhen city, and the type number of the pulse plate is as follows: SDR-05 VDC-SL-C.

The circuit of the product can be integrated in a PLC circuit board and realizes touch control by connecting a liquid crystal display screen.

Be equipped with on casing 1 upper portion and control platform 7, be equipped with observation windowsill 8 on controlling platform 7, observation cup G establishes on observation windowsill 8. A control panel is arranged on the control platform 7, and switches 9 of a control circuit are arranged in the control panel and comprise a cleaning timing switch, a power switch, an old oil pumping and purging switch and the like (see attached figures 1 and 2). The pipeline, the joint and the like connected with the automobile engine in the embodiment 1 of the utility model can be hung on the outer side surface of the shell. When in use, the trolley is placed on a trolley to be convenient to move.

The working process and working principle of the utility model are as follows:

when cleaning, firstly detaching the oil drain bolt of the engine oil bottom, discharging the waste engine oil in the oil bottom shell of the engine by using gravity, and then installing a special oil pumping joint after no waste oil flows out from the oil drain part of the oil bottom, wherein the oil pumping joint is communicated with an oil pump through a pipeline; and then an engine oil filling cover of the engine is opened, a liter of new engine oil is filled into the engine by using tools such as an oil can and the like, and an oil outlet joint is arranged at the filling port and is communicated with the oil pump through a pipeline. When the oil pump M is cleaned, the equipment oil pump M starts to operate, new engine oil filled into the engine enters the transparent observation cup G through the oil pump M, the electromagnetic valve A is opened, and the new engine oil passes through the electromagnetic valve A and is filtered by the filter C. The engine lubricating system enters the engine through an engine oil filling port, meanwhile, the equipment is connected with an air pump air source, the air pump air source is filtered, the pressure is controlled to be 2-3 kilograms, and the electromagnetic valve D is opened and closed at different pulse frequencies, so that new engine oil entering the engine can be safely and efficiently circularly cleaned in an oil-gas mixed pulse mode. After the circulation cleaning is completed, the electromagnetic valve A is closed. And the electromagnetic valve B is opened, new engine oil enters the old oil drum 3 of the equipment through the electromagnetic valve B, meanwhile, the electromagnetic valve D continuously controls airflow in a pulse mode to perform pulse purging in the engine through the engine oil filling port, and the waste oil which cannot be discharged by gravity in the engine lubricating system can be thoroughly discharged by negative pressure suction of the oil pump M in cooperation with purging of positive pressure pulse airflow blown in from the engine oil filling port.

The working principle of the circuit is as follows:

when the cleaning machine is used for cleaning, the power switch K1 is pressed firstly, then the cleaning timing switch K2 is pressed, at the moment, the coil of the relay KA1 supplies power, two normally open contacts of the relay KA1 are closed, the electromagnetic valve A and the oil pump M are respectively connected, and the electromagnetic valve A and the oil pump M start to work. The two power supply ports of the pulse plate are simultaneously switched on, the pulse plate works, the pulse plate outputs electric signals according to the set pulse width and pulse interval, the electric signals are connected through the two output ports of the pulse plate and control the electromagnetic valve D to start working, the electromagnetic valve D is opened and closed according to the pulse frequency, then the air flow is controlled to generate pulse type spraying, the oil is pumped by matching with the oil pump M, and the machine oil is driven by the air flow to be cleaned in a pulse mode. After the regular cleaning is finished, the cleaning timing switch K2 is automatically closed, the relay KA1 coil is powered off, two normally open contacts of the relay KA1 are opened, the electromagnetic valve A does not work, the electromagnetic valve D does not work, and the pulse plate is powered off and does not work. At this time, the old oil pumping and purging switch K3 is pressed, the relay KA2 coil supplies power, the two normally open contacts of the relay KA2 are closed, the solenoid valve B is connected all the way, the oil pump M is connected all the way, the two power supply ports of the pulse plate are connected all the way, the pulse plate works, the two output ports are connected and control the solenoid valve D to be opened and closed according to the pulse frequency to perform pulse type purging, and meanwhile, the oil pump M pumps the old oil back into the old oil drum 3 through the solenoid valve B.

The present invention can also have more embodiments to further improve the convenience of use when in actual use, for example, embodiment 2 (see fig. 4) in which the bottom of the housing 1 can be provided with universal moving wheels 2a and the upper portion of the housing 1 is provided with corresponding handrails 3a for easy pushing.

As also shown in fig. 5, embodiment 3 of the present invention includes the structural improvement in embodiment 2 described above: universal moving wheels and handrails, etc.; it is also possible to provide a cavity 2b outside the housing 1 on one side, and the pipes and connections extending outside the housing are provided in this cavity 2 b. A removable baffle 3b may also be provided outside the cavity 2b to facilitate dust-proofing and enhance the appearance of the product when the cleaning machine is not in use. In practice, because engine brands and models are different due to different vehicle types, an oil pan oil drain bolt and an engine oil filling port of the engine can be different, different connectors and even pipelines can be prepared in advance, and the engine oil drain bolt is convenient and practical.

Claims

1. The utility model provides an engine lubrication system pulse cleaning machine which characterized in that: the cleaning machine comprises a machine shell, wherein an oil pump M, a pressure reducing filter P, an electromagnetic valve A, an electromagnetic valve B, an electromagnetic valve C, a one-way valve E, an observation cup G, a filter C and corresponding pipelines are arranged in the machine shell;

the inlet of the oil pump M is connected with an oil pumping joint through a pipeline, the oil pump M is connected with an oil outlet of an engine bottom shell through the pipeline and the oil pumping joint, and the oil pumping joint and part of connecting pipelines extend out of the engine bottom shell;

the outlet of the oil pump M is connected with an observation cup G through a pipeline, the oil pump M is divided into two paths through the observation cup G, one path of the oil pump M is connected with an old oil barrel through an electromagnetic valve B and a corresponding pipeline, the other path of the oil pump M is sequentially connected with an electromagnetic valve A, a filter C and an oil outlet joint through pipelines, the oil outlet joint is connected with an engine oil filling port of an engine through the oil outlet joint, and the oil outlet joint and part of the connecting pipeline extend out of the machine shell;

the air pump air source is connected with a pipeline coming out of the filter C sequentially through the pressure reducing filter P, the electromagnetic valve D, the one-way valve E and the pipeline, pure air flow and suitable-pressure air flow are communicated into the engine, the electromagnetic valve D is electrically connected with a pulse plate, and the pulse plate controls the switching frequency of the electromagnetic valve D.

2. The pulse washer for the engine lubrication system according to claim 1, wherein: the upper part of the shell is provided with a control platform, and the observation cup G is arranged on the control platform.

3. The pulse washer for the engine lubrication system according to claim 1, wherein: the electric control circuit of the cleaning machine comprises a 12V power supply, a relay KA1, a relay KA2, a power switch K1, a pulse plate, a cleaning timing switch K2 and an old oil back-pumping and purging switch K3; the power switch K1 and a power indicator light L are connected in series between the positive terminal and the negative terminal of the power supply; the coil of the cleaning timing switch K2 and the coil of the relay KA1 are connected in series and then connected in parallel with the power indicator lamp L; a normally open contact of the relay KA1 is connected in series with a motor switch of the oil pump M and then connected in parallel with the power indicator lamp L; meanwhile, the normally open contact of the relay KA1 is connected in parallel with the power indicator lamp L after being connected in series with the positive and negative terminals of the power supply input of the pulse plate; the other normally open contact of the relay KA1 is connected in series with the electromagnetic valve A and then connected in parallel with the power indicator lamp L; the positive and negative output terminals of the pulse plate are connected in series with the electromagnetic valve D and then connected in parallel with the power indicator lamp L; a coil of the relay KA2 is connected in series with the old oil pumping and purging switch K3 and then connected in parallel with the power indicator lamp L; a normally open contact of the relay KA2 is connected in series with a motor switch of the oil pump M and then connected in parallel with the power indicator lamp L; meanwhile, the normally open contact of the relay KA2 is connected in series with the positive and negative terminals of the power supply input of the pulse plate and then connected in parallel with the power indicator lamp L; and the other normally open contact of the relay KA2 is connected with the solenoid valve B in series and then connected with the power indicator lamp L in parallel.

4. An engine lubrication system pulse washer according to claim 2 or 3, wherein: the console is provided with a control panel, and each switch of the control circuit is arranged in the control panel.

5. The pulse washer for the engine lubrication system according to claim 1, wherein: the bottom of the casing is provided with universal moving wheels, and the upper part of the casing is provided with a corresponding handrail which is convenient to push.

6. The pulse washer for the engine lubrication system according to claim 1, wherein: a concave cavity is arranged outside one side of the shell, and a pipeline, an oil pumping joint and an oil outlet joint extending outside the shell are arranged in the concave cavity.

7. The pulse washer for the engine lubrication system according to claim 6, wherein: the cavity is externally provided with a detachable baffle plate which is convenient for covering dust when the cleaning machine is not used.