Movable type double-cavity oil filtering vehicle

Abstract

The invention relates to a movable type double-cavity oil filtering vehicle which comprises a movable vehicle body, an oil filtering machine connected with an oil tank is installed at the front end of the movable vehicle body, and the oil tank is divided into two small oil cavities which are independent and communicated in an adjustable and controllable mode; the cavity adjusting mechanism comprises two inflatable airbags which are correspondingly arranged in the small oil cavities respectively and can be adjusted to be opened and closed; the conducting pressure regulating mechanism comprises a communicating pipe communicating the left small oil cavity and the right small oil cavity, and a closing piece is arranged in the middle of the communicating pipe through a corresponding supporting spring in an up-down moving mode; when the volume of the inflatable air bag changes, the two sides of the closing piece move to form receding positions under the interaction of positive pressure pushing force and negative pressure adsorption force, and air or oil located in the expanded small oil cavity of the inflatable air bag circulates to the other small oil cavity through the communicating pipe. And the limiting protection mechanism is used for limiting and fixing the positions of the inflatable airbags with different sizes. According to the invention, single-box circulating filtration, parallel switching filtration and small-large volume filtration are effectively realized, so that the filtration effect and the filtration efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil filter trucks, and specifically refers to a mobile double-chamber oil filter truck. Background Art

[0002] In water conservancy and hydropower projects, in cascade hydropower station workshops, dams and other pipe fittings and facilities, due to the installation of hydro-generator unit bearings and lubrication systems, gate and hoist systems, auxiliary power systems, water conveyance systems and valves, etc., a corresponding oil filter system is required for oil filtering treatment. Through the oil filter system, the failure of the lubrication system can be effectively prevented, the mechanical wear of hydro-generator unit bearings, etc. can be reduced, the stable operation of pipe fittings and equipment such as hydraulic systems can be ensured, the insulation performance of electrical equipment such as transformers and switches can be protected, and thus the reliable operation of the equipment can be guaranteed, the service life can be extended, and faults and accidents can be prevented.

[0003] However, in cascade hydropower station workshops and dams, or due to insufficient power station oil storage tanks and oil treatment systems caused by site limitations, the oil filtering needs of the site cannot be met. Especially in the case of water leakage in the guide bearing cooler of a hydropower plant, when the oil in the guide bearing is mixed with water, it cannot be directly put into the tank for treatment, and thus corresponding problems need to be solved urgently. Therefore, mobile oil filter trucks are widely used, and through their convenience, the above technical problems can be effectively alleviated. However, due to the fixed oil filtering chamber of the oil filter truck, for some sites with less oil filtering volume such as bearings, it is easy to mix air or water due to the too large oil filtering chamber, greatly reducing the oil filtering effect and oil filtering quality, and seriously affecting the processing time, which is very troublesome.

[0004] Therefore, the research purpose of the present invention is to design a mobile double-chamber oil filter truck that is mobile, convenient and reliable to operate, has high working efficiency, can flexibly adjust the oil chamber volume according to the oil filtering situation, effectively realizes single-tank circulating filtration, parallel switching filtration, and filtration with different volume amounts, and thus improves the filtration effect and filtration efficiency. Summary of the Invention

[0005] In view of the technical problems existing in the above-mentioned prior art, the present invention provides a mobile double-chamber oil filter truck, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the present invention is as follows:

[0007] A mobile double-chamber oil filter truck, comprising:

[0008] A mobile vehicle body;

[0009] An oil tank is fixedly mounted on the mobile vehicle body, and an oil filter connected to the oil tank is mounted at the front end of the mobile vehicle body; the middle of the oil tank is sealed and divided into two separate small oil chambers by corresponding partitions, and the oil tank is respectively provided with corresponding oil inlets and oil outlets at the top and bottom sides of each small oil chamber, and a corresponding drain port is provided at the bottom, and the bottoms of the two small oil chambers can be adjusted to be connected;

[0010] The chamber adjustment mechanism comprises two inflatable airbags which are respectively arranged in the small oil chambers and can be adjusted to open and close and communicate with each other. The inflatable airbags are filled with corresponding gas and can be set to shrink and expand. When the volume of the small oil chamber on the left is reduced, the gas in the inflatable airbag on the right flows to the inflatable airbag on the left.

[0011] At least one conduction and pressure regulating mechanism, comprising a connecting pipe fixed on the partition plate for connecting the two small oil chambers on the left and right, wherein a closing piece for blocking the connecting pipe is arranged in the connecting pipe and moves up and down by a corresponding supporting spring; when the volume of the inflatable airbag on one side expands, the volume of the small oil chamber connected thereto decreases and the pressure increases, and the closing piece moves downward under the driving action of the positive pressure to make way, and the air or oil in the small oil chamber flows to the other small oil chamber through the connecting pipe until the pressure is balanced;

[0012] The position limiting protection mechanism is used to limit and fix the positions of the inflatable airbags of different sizes.

[0013] The drain outlets are each provided with a corresponding oil guide tee pipe, and the two oil guide tees are connected by a corresponding oil guide ball valve and a guide pipe, so that the two small oil chambers are adjustably connected, and the other end of the oil guide tee pipe is connected downwardly to a drain pipe through a corresponding drain valve.

[0014] The oil inlet and oil outlet of the two small oil chambers are respectively connected to the oil inlet pipe, the oil outlet pipe and the oil filter pipe through corresponding three-way conduits, and the oil filter pipe is connected to the oil filter machine through corresponding valves; when the small oil chamber on the left is filtering oil, the valve on the oil filter pipe connecting its oil inlet and oil outlet is opened; when the small oil chamber on the right is filtering oil, the valve on the oil filter pipe connecting its oil inlet and oil outlet is opened; when the oil tank is filtering oil, the oil guide ball valve is opened to connect the two small oil chambers, and the valve on the oil filter pipe connecting the oil inlet of the small oil chamber on the left and the oil outlet of the small oil chamber on the right is opened, or the valve on the oil filter pipe connecting the oil inlet of the small oil chamber on the right and the oil outlet of the small oil chamber on the left is opened.

[0015] The connecting pipe fitting is a three-way structure and its two transverse branches are respectively and correspondingly connected and arranged in the corresponding small oil chambers. Its longitudinal branch is vertically downward and closed. The support spring is fixedly installed in the longitudinal branch and has a movement tendency to drive the closing piece to move upward to block and close the transverse branch.

[0016] The bottom of the closing member is embedded in the longitudinal branch pipe, and its top is arranged in a triangular or oval shape with a narrower upper part and a wider lower part in the longitudinal section. One end of the support spring is fixed to the closed bottom of the longitudinal branch pipe, and the other end is fixed to the bottom of the closing member. A corresponding connecting member is fixed to the inner side wall of the transverse branch pipe above the longitudinal branch pipe. The bottom of the connecting member is provided with an arc-shaped groove adapted to the closing member with an oval-shaped longitudinal section. When the closing member is installed in place, it is tightly attached to the arc-shaped groove of the connecting member.

[0017] The two inflatable air bags are connected through corresponding air guide pipes and a two-way air pump; when the two-way air pump is started, the inflatable air bag on one side shrinks and the other inflatable air bag expands equally.

[0018] A corresponding flow meter is arranged at the oil inlet of the small oil chamber, and the flow meter is electrically connected to the two-way air pump.

[0019] The limit protection mechanism includes a limit plate that is driven by a corresponding telescopic cylinder to move up and down above the inflatable air bag. The cylinder body of the telescopic cylinder is fixedly installed on the outer side of the top of the fuel tank, and its piston rod is hermetically penetrated into the small oil chamber of the fuel tank. A corresponding sleeve member is sleeved outside it at intervals. The sleeve member is connected to the limit plate through a corresponding elastic member and a rod member. The elastic member is sleeved outside the piston rod, and one end of it is fixedly connected to the bottom of the sleeve member, and the other end is fixedly connected to the rod member.

[0020] Corresponding access holes are respectively arranged at the top of the fuel tank corresponding to the small oil chamber, and corresponding sealing doors are installed at the access holes in an openable and closable manner.

[0021] The mobile vehicle body includes a trailer flat plate for supporting and fixedly installing the fuel tank. A towing head for connecting to the vehicle head is installed at the front end of the trailer flat plate. Corresponding wheels are rotatably installed at the bottom of the trailer flat plate, and corresponding load-bearing support components are arranged to move up and down corresponding to the wheels. The load-bearing support components are composed of feet driven by lifting hydraulic cylinders.

[0022] Advantages of the present invention:

[0023] 1) By hermetically and fixedly installing corresponding partition plates in the mobile fuel tank, the fuel tank is divided into two small oil chambers that can be independently filtered in a single tank cycle or filtered in parallel with switching. Moreover, the bottoms of the two small oil chambers are controllably connected, so that they can be connected according to needs to expand the filtering volume, thereby improving the application range of the oil filter truck;

[0024] Although the separate cavity setting can improve the application range of the present invention to improve the oil filtering efficiency, the simple separate cavity setting can only be divided into a fixed volume, resulting in limited flexibility in its use. In the case of a small oil filtering amount for bearings and other applications, it is easy to have a poor filtering effect and filtering efficiency due to an overly large oil cavity. Therefore, the present invention further provides a cavity adjusting mechanism in the fuel tank, which includes two inflatable air bags respectively arranged in the small oil cavities and communicating with each other. The inflatable air bags are filled with an appropriate amount of gas, and by introducing the gas in one inflatable air bag into the other inflatable air bag, the volume of the other small oil cavity can be enlarged. The shrinkage variables of the two inflatable air bags are the same, and one of the two small oil cavities is in a positive pressure state and the other is in a negative pressure state, so that the oil or air in the small oil cavity in the positive pressure state can be discharged from the conduction and pressure regulating mechanism into the small oil cavity in the negative pressure state, effectively avoiding waste caused by oil discharge, and the volume of the oil cavity can be flexibly adjusted according to the oil filtering situation, improving the oil filtering efficiency and quality, as well as the applicable range of the equipment.

[0025] 2) The expansion and contraction of the inflatable air bag will cause pressure changes in the small oil cavity. Therefore, the present invention further provides a conduction and pressure regulating mechanism between the two small oil cavities to solve the problem of pressure change caused by adding an inflatable air bag to regulate the volume of the small oil cavity, so as to drain liquid and exhaust gas and control pressure in a timely and rapid manner. However, a conventional one-way valve can only achieve one-way flow and cannot achieve two-way conduction; a two-way valve cannot achieve relatively controllable flow between two directions; and due to the use environment requiring immersion in the oil body, an electromagnetic valve cannot be used either. Therefore, a one-way valve, a two-way valve, and an electromagnetic valve cannot be used here to regulate pressure.

[0026] Therefore, the present invention connects the inflatable air bags separately arranged in the corresponding small oil cavities. When adjusting the volume of the small oil cavity for oil filtering, the shrinkage variables of the two inflatable air bags are the same, and one of the two small oil cavities is in a positive pressure state and the other is in a negative pressure state. Then, on the basis of not requiring the intervention of other metering devices, a conduction and pressure regulating mechanism is added. By providing a connecting pipe fitting between the two small oil cavities, a corresponding closing part moves up and down through a support spring at the longitudinal branch pipe of the connecting pipe fitting. The two sides on both sides of the closing part move and are embedded in the longitudinal branch pipe to form a clearance under the mutual action of the positive pressure driving force and the negative pressure adsorption force, so that the two small oil cavities are connected through the connecting pipe fitting to form communication for exhausting liquid or gas, and the pressure regulating amounts of the two small oil cavities are equal. After the pressures on both sides are balanced, the driving force and the adsorption force disappear, and the closing part resets upward under the compression elastic force of the support spring and blocks the transverse branch pipe again to seal and separate the two small oil cavities. The cavity adjusting mechanism cooperates with the conduction and pressure regulating mechanism to connect the two small oil cavities, which can accurately and quickly control the liquid discharge amount or the gas discharge amount, adjust the pressure balance, and can be adjusted mutually in two directions. The discharged oil is stored in another oil cavity without causing waste, thereby improving the practical effect of the present invention.

[0027] 3) The non-standard component conduction and pressure regulation mechanism composed of the closing member, the support spring, and the connecting pipe fitting in the present invention can achieve two-way relative conduction on both sides according to pressure changes. By embedding the closing member in the longitudinal branch pipe of the connecting pipe fitting, and using the elastic force of the support spring to push and block the connecting pipe fitting, and by setting the top of the closing member as a triangle or an ellipse with a narrower upper part and a wider lower part in the longitudinal section, the force-receiving surface is the inclined surface or the arc surface of the closing member. Thus, the closing member is subjected to a thrust force F perpendicular to the inclined surface or the arc surface. According to the force analysis, the thrust force F can be decomposed into a transverse force F1 and a downward longitudinal force F2. The longitudinal force F2 promotes the downward movement of the closing member to form a clearance, facilitating liquid drainage or gas exhaust. And the longitudinal force F2 needs to be greater than the elastic force of the elastic member, and the elastic force of the elastic member is not less than the longitudinal decomposition force f of the closing member under the maximum pressure state in the small oil chamber during oil filtration, so as to effectively ensure the closing tightness of the closing member while achieving the two-way clearance conduction effect of the closing member.

[0028] 4) The present invention further sets a corresponding flow meter at the oil inlet. According to the flow measurement of the corresponding flow meters in the two small oil chambers, the two-way air pump is electrically connected for forward start or reverse start, and the start time of the two-way air pump is regulated according to the amount of flow, that is, the inflation and deflation amount of the inflatable air bag in the small oil chamber for filtration, effectively enhancing the oil filtration effect and improving the flexibility and automation of the oil filtration operation.

[0029] 5) The inflatable air bag set in the present invention will have different buoyancies due to different inflation amounts in the oil body. This makes the inflatable air bag easily damaged due to the force at the connection with the air guide pipe and lose its effectiveness. Therefore, the present invention further adds a limit and protection mechanism for adjusting the position of its limit plate according to the inflation and deflation size of the inflatable air bag. The limit plate driven by the telescopic cylinder moves up and down to block and abut against the inflatable air bag to limit its position, effectively preventing the connection of the inflatable air bag from being damaged due to buoyancy problems. During use, the telescopic cylinder drives the limit plate to move upward to form a clearance, and after the inflatable air bag inflates, the telescopic cylinder drives the limit plate to move downward to abut against the inflatable air bag; but when the limit plate moves downward, it is in rigid contact with the inflatable air bag, which is likely to generate a relative force on the inflatable air bag, thereby affecting the connection of the inflatable air bag; therefore, the present invention further sleeved corresponding sleeve parts at intervals outside the piston rod of the telescopic cylinder, connected corresponding rods to the limit plate, and fixedly installed an elastic member sleeved outside the piston rod in the sleeve part, with one end of the elastic member fixedly connected to the rod. In this way, when the piston rod extends and drives the sleeve part and the limit plate to move downward, when the limit plate abuts against the inflatable air bag, it does not directly contact the telescopic cylinder, but forms a certain buffer through the elastic member to achieve flexible contact, further solving the problem of the connection breakage caused by the inflation and deflation of the inflatable air bag and improving the practical effect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the present invention.

[0031] Figure 2 is Figure 1 a sectional view.

[0032] Figure 3 is Figure 1 a sectional view after removing the moving vehicle body.

[0033] Figure 4 is a structural diagram of the conduction voltage regulating mechanism.

[0034] Figure 5 is a structural diagram of the conduction voltage regulating mechanism in the second embodiment.

[0035] In the drawings: moving vehicle body 1, fuel tank 2, oil inlet 201, oil drain port 202, drain port 203, partition 3, small oil chamber 4, chamber adjusting mechanism 5, inflatable airbag 501, two-way air pump 502, conduction voltage regulating mechanism 6, connecting pipe fitting 601, support spring 602, closing member 603, connecting member 604, limit protection mechanism 7, telescopic cylinder 701, limit plate 702, sleeve pipe fitting 703, rod member 704, elastic member 705, oil filter 8, flowmeter 9, oil guiding three-way pipe 10, sealing door 11, load-bearing support assembly 12. Specific embodiments

[0036] For the convenience of those skilled in the art to understand, the structure of the present invention will now be further described in detail with reference to the accompanying drawings in combination with the embodiments:

[0037] Embodiment 1

[0038] Refer to Figures 1-4 , a mobile double-chamber oil filter vehicle, including:

[0039] Moving vehicle body 1;

[0040] Fuel tank 2, fixedly installed on the moving vehicle body 1, and an oil filter 8 connecting the fuel tank 2 is installed at the front end of the moving vehicle body 1; the middle of the fuel tank 2 is hermetically divided into two separate small oil chambers 4 by a corresponding partition 3, corresponding oil inlets 201 and oil drain ports 202 are respectively arranged at the top and bottom sides of each small oil chamber 4 of the fuel tank 2, and a corresponding drain port 203 is arranged at its bottom, and the bottoms of the two small oil chambers 4 are controllably connected and arranged;

[0041] Chamber adjusting mechanism 5, including two inflatable airbags 501 respectively corresponding to and arranged in the small oil chamber 4 and capable of adjusting opening and closing and connection, the inflatable airbags 501 are filled with corresponding gas and can be shrunk and expanded; when reducing the volume of the left small oil chamber 4, the gas in the right inflatable airbag 501 flows to the left inflatable airbag 501;

[0042] At least one conduction voltage regulating mechanism 6, which includes a connecting pipe fitting 601 fixed on the partition plate 3 for connecting the left and right small oil chambers 4. A closing member 603 for blocking the connecting pipe fitting 601 is arranged to move up and down in the connecting pipe fitting 601 through a corresponding support spring 602; when the volume of the inflatable airbag 501 on one side expands, the volume of the small oil chamber 4 connected to it decreases and the pressure increases. The closing member 603 moves downward under the pushing action of the positive pressure to form a clearance, and the air or oil in this small oil chamber 4 flows through the connecting pipe fitting 601 to the other small oil chamber 4 until the pressure is balanced.

[0043] The limit protection mechanism 7 is used to limit the positions of the inflatable airbags 501 of different sizes.

[0044] In the present invention, by hermetically and fixedly installing a corresponding partition plate 3 in the mobile fuel tank 2, the fuel tank 2 is divided into two small oil chambers 4 that can be independently filtered in a single tank cycle or filtered in parallel and switched. The bottoms of the two small oil chambers 4 are controllably connected, and thus can be connected according to requirements to expand the filtering volume, thereby improving the application range of the oil filter truck. Although the chamber division setting can improve the application range of the present invention to improve the oil filtering efficiency, the simple chamber division setting can only be divided into a fixed volume, resulting in limited flexibility in its use. For use scenarios with less oil filtering volume such as bearings, the oil chamber is likely to be too large, resulting in poor filtering effect and filtering efficiency. Therefore, the present invention further sets a corresponding chamber adjusting mechanism 5 in the fuel tank 2, which includes two inflatable airbags 501 respectively arranged in the small oil chambers 4 and communicating with each other. The inflatable airbags 501 are filled with an appropriate amount of gas, and by introducing the gas in one inflatable airbag 501 into the other inflatable airbag 501, the effect of reducing the volume of the other small oil chamber 4 is achieved. The shrinkage variables of the two inflatable airbags 501 are the same, and one of the two small oil chambers 4 is in a positive pressure state and the other is in a negative pressure state. Thus, the oil or air in the small oil chamber 4 in the positive pressure state can be discharged from the conduction voltage regulating mechanism 7 to the small oil chamber in the negative pressure state, not only effectively avoiding waste caused by oil discharge, but also flexibly adjusting the volume of the oil chamber according to the oil filtering situation, improving the oil filtering efficiency and quality, and the equipment application range.

[0045] Corresponding oil guiding three-way pipes 10 are arranged at the drain ports 203. The two oil guiding three-way pipes 10 are connected through corresponding oil guiding ball valves and conduction pipes, and the two small oil chambers 4 are adjustably connected. The other end of the oil guiding three-way pipe 10 is connected downward through a corresponding drain valve to a drain pipe.

[0046] The oil inlets 201 and oil outlets 202 of the two small oil cavities 4 are respectively connected to the oil inlet pipe, the oil outlet pipe and the oil filter pipe through corresponding three-way conduits, and the oil filter pipe is connected to the oil filter 8 through a corresponding valve; when the left small oil cavity 4 is filtering oil, the valve on the oil filter pipe connecting its oil inlet 201 and oil outlet 202 is opened; when the right small oil cavity 4 is filtering oil, the valve on the oil filter pipe connecting its oil inlet 201 and oil outlet 202 is opened; when the fuel tank 2 is filtering oil, the oil guiding ball valve is opened to connect the two small oil cavities 4, and the valve on the oil filter pipe connecting the oil inlet 201 of the left small oil cavity 4 and the oil outlet 202 of the right small oil cavity 4 is opened, or the valve on the oil filter pipe connecting the oil inlet 201 of the right small oil cavity 4 and the oil outlet 202 of the left small oil cavity 4 is opened.

[0047] The connecting pipe fitting 601 is of a three-way structure, and its two horizontal branches are respectively and correspondingly connected and arranged in the corresponding small oil cavity 4, and its vertical branch is vertically and downwardly closed. The support spring 602 is fixedly installed in the vertical branch and has a tendency to drive the closing member 603 to move upward to block and close the horizontal branch.

[0048] The bottom of the closing member 603 is embedded in the vertical branch, and its top is set to be triangular with a narrower upper part and a wider lower part in the longitudinal section. One end of the support spring 602 is fixed to the closed bottom of the vertical branch, and the other end is fixed to the bottom of the closing member 603.

[0049] In the present invention, the non-standard component conduction and pressure regulation mechanism 6 composed of the closing member 603, the support spring 602 and the connecting pipe fitting 601 can realize bidirectional relative conduction on both sides according to the pressure change. By embedding the closing member 603 in the vertical branch of the connecting pipe fitting 601 and using the elastic force of the support spring 602 to push and block the connecting pipe fitting 601, and then setting the top of the closing member 603 to be triangular with a narrower upper part and a wider lower part in the longitudinal section, so that the force-bearing surface is on the inclined surface of the closing member 603, so that the closing member 603 receives a thrust F perpendicular to the inclined surface or the arc surface. According to the force analysis, the thrust F can be decomposed into a horizontal force F1 and a downward longitudinal force F2. Thus, the longitudinal force F2 promotes the downward movement of the closing member 603 to form a clearance for draining liquid or exhausting gas, and the longitudinal force F2 needs to be greater than the elastic force of the elastic member 705. The elastic force of the elastic member 705 is not less than the longitudinal decomposition force f of the closing member 603 under the maximum pressure state in the small oil cavity 4 during oil filtering, so as to effectively ensure the closing and sealing performance of the closing member 603 while realizing the bidirectional clearance conduction effect of the closing member 603.

[0050] The two inflatable air bags 501 are communicated with each other through corresponding air ducts and a two-way air pump 502; when the two-way air pump 502 is started, one of the inflatable air bags 501 shrinks and the other inflatable air bag 501 expands equally, that is, the gas in one of the inflatable air bags 501 is conducted into the other inflatable air bag 501 through the two-way air pump 502.

[0051] A corresponding flow meter 9 is arranged at the oil inlet 201 of the small oil chamber 4, and the flow meter 9 is electrically connected to the two-way air pump 502.

[0052] The present invention further arranges a corresponding flow meter 9 at the oil inlet 201. According to the flow measurement of the corresponding flow meters 9 of the two small oil chambers 4, the two-way air pump is electrically connected to start forward or backward, and the starting time of the two-way air pump is adjusted according to the amount of the flow, that is, the expansion and contraction amount of the inflatable air bag 501 in the small oil chamber 4 for filtration, effectively enhancing the oil filtration effect, and improving the flexibility and automation of the oil filtration operation.

[0053] The expansion and contraction of the inflatable air bag 501 will cause pressure changes in the small oil chamber 4. Therefore, the present invention further arranges a conduction and pressure regulating mechanism 6 between the two small oil chambers 4 to solve the problem of pressure change caused by adding the inflatable air bag 501 to regulate the volume of the small oil chamber 4, so as to drain liquid and exhaust gas to control pressure in a timely and rapid manner; however, a conventional one-way valve can only achieve unidirectional flow and cannot achieve bidirectional conduction; a two-way valve cannot achieve relatively controllable flow between two directions; and because the use environment requires immersion in the oil body, the solenoid valve cannot be used either. Therefore, the one-way valve, the two-way valve and the solenoid valve cannot be used here to regulate pressure;

[0054] Therefore, the present invention connects the inflatable airbags 501 separately arranged in the corresponding small oil chambers 4, and then when adjusting the volume of the small oil chamber 4 for filtering oil, the contraction amount of the two inflatable airbags 501 is equal, and one of the two small oil chambers 4 is at positive pressure and the other is at negative pressure, so that a conducting pressure regulating mechanism 6 is added without the intervention of other control devices, and a connecting pipe 601 is arranged between the two small oil chambers 4. The longitudinal branch of the connecting pipe 601 moves the corresponding closing member 603 up and down through the support spring 602, and the two sides of the closing member 603 are respectively moved and embedded in the longitudinal branch under the interaction of the positive pressure driving force and the negative pressure adsorption force. The formation makes way so that the two small oil chambers 4 are connected to each other through the connecting pipe 601 for exhaust or liquid discharge, and the pressure adjustment amounts of the two small oil chambers 4 are equal. After the pressures on both sides are balanced, the driving force and the adsorption force disappear, and the closing member 603 is reset upward under the action of the compressive elastic force of the supporting spring 602 and is re-blocked in the horizontal branch pipe, sealing and separating the two small oil chambers 4. The chamber adjusting mechanism 5 cooperates with the conducting pressure regulating mechanism 6 to connect the two small oil chambers 4, which can accurately and quickly control the liquid discharge or exhaust volume, adjust the pressure balance, and can be adjusted in both directions. The discharged oil is stored in the other oil chamber without causing waste, thereby improving the practical effect of the present invention.

[0055] The limit protection mechanism 7 includes a limit plate 702 arranged above the inflatable airbag 501 and driven to move up and down by a corresponding telescopic cylinder 701. The cylinder body of the telescopic cylinder 701 is fixedly installed on the top outer side of the oil tank 2, and its piston rod seal passes through the small oil chamber 4 of the oil tank 2, and its external interval is sleeved with a corresponding sleeve member 703. The sleeve member 703 is connected to the limit plate 702 through a corresponding elastic member 705 and a rod member 704. The elastic member 705 is sleeved on the outer side of the piston rod, and one end thereof is fixedly connected to the bottom of the sleeve member 703, and the other end thereof is fixedly connected to the rod member 704. The limit plate 702 is fixedly connected or rotatably connected to the rod member 704.

[0056] The inflatable airbag 501 provided in the present invention will be subjected to different buoyancy in the oil body due to different inflation amounts. This makes it easy for the inflatable airbag 501 to lose its effectiveness due to force damage at the connection with the air guide tube due to buoyancy problems. Therefore, the present invention further adds a limiting protection mechanism 7, which is used to adjust the position of its limiting plate 702 according to the expansion and contraction size of the inflatable airbag 501. The limiting plate 702 is driven up and down by the telescopic cylinder 701 to block and abut the position of the inflatable airbag 501, thereby effectively preventing the inflatable airbag 501 from being damaged at the connection due to buoyancy problems. When in use, the telescopic cylinder 701 drives the limit plate 702 to move up to make way. After the inflatable airbag 501 is inflated, the telescopic cylinder 701 drives the limit plate 702 to move down to resist the inflatable airbag 501; but when the limit plate 702 moves down, it is in rigid contact with the inflatable airbag 501, which is easy to generate a relative force on the inflatable airbag 501, thereby affecting the connection of the inflatable airbag 501; therefore, the present invention further arranges a corresponding sleeve member 703 at intervals outside the piston rod of the telescopic cylinder 701, and the limit plate 702 is connected to the corresponding rod member 704, and an elastic member 705 sleeved on the outside of the piston rod is fixedly installed in the sleeve member 703, and one end of the elastic member 705 is fixedly connected to the rod member 704. In this way, the piston rod extends and drives the sleeve member 703 and the limit plate 702 to move downward. When the limit plate 702 abuts against the inflatable airbag 501, it does not directly contact the telescopic cylinder 701, but forms a certain buffer through the elastic member 705 to achieve flexible contact, further solving the problem of breakage at the connection caused by the shrinkage of the inflatable airbag 501, and improving the practical effect of the present invention.

[0057] The top of the oil tank 2 is provided with corresponding manholes corresponding to the small oil chambers 4, and corresponding sealing doors 11 are installed at the manholes to be opened and closed.

[0058] The mobile vehicle body 1 includes a trailer flatbed for supporting and fixing the oil tank 2. A traction head for connecting the vehicle head is installed at the front end of the trailer flatbed. Corresponding wheels are rotatably installed at the bottom of the trailer flatbed, and corresponding load-bearing support components 12 are provided corresponding to the up and down movement of the wheels. The load-bearing support components 12 are composed of support legs driven by a lifting hydraulic cylinder.

[0059] Embodiment 2

[0060] Reference Figure 5 The difference between this embodiment and the first embodiment is that the bottom of the closing member 603 is embedded in the longitudinal branch pipe, and the top thereof is set to be an ellipse with a narrow upper part and a wide lower part in the longitudinal section. The inner wall of the transverse branch pipe located above the longitudinal branch pipe is fixed with a corresponding connecting member 604, and the bottom of the connecting member 604 is provided with an arc-shaped groove adapted to the closing member 603 with an elliptical structure in the longitudinal section. When the closing member 603 is installed in place, it is tightly fitted with the arc-shaped groove of the connecting member 604.

[0061] It should be noted that the implementation principle and technical effects of this embodiment are the same as those of the first embodiment. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in the first embodiment.

[0062] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A mobile double-chamber oil filter truck, characterized in that, Including: A moving vehicle body (1); A fuel tank (2) fixedly installed on the moving vehicle body (1), and an oil filter (8) connecting the fuel tank (2) is installed at the front end of the moving vehicle body (1); the middle part of the fuel tank (2) is hermetically separated into two separate small oil chambers (4) by corresponding partition plates (3), corresponding oil inlets (201) and oil outlets (202) are respectively arranged at the top and bottom sides of each small oil chamber (4) of the fuel tank (2), and a corresponding drain port (203) is arranged at the bottom thereof, and the bottoms of the two small oil chambers (4) are controllably communicated. A chamber adjusting mechanism (5) includes two inflatable air bags (501) respectively arranged in the small oil chambers (4) and capable of adjusting the opening and closing of the communication, and the inflatable air bags (501) are filled with corresponding gases and can be contracted and expanded; when the volume of the small oil chamber (4) on the left side is reduced, the gas in the inflatable air bag (501) on the right side flows to the inflatable air bag (501) on the left side. At least one conduction and pressure regulating mechanism (6) includes a communication pipe fitting (601) fixed on the partition plate (3) for communicating the two small oil chambers (4) on the left and right, and a closing member (603) for blocking the communication pipe fitting (601) is arranged to move up and down in the communication pipe fitting (601) through a corresponding support spring (602); when the volume of one side's inflatable air bag (501) expands, the volume of the small oil chamber (4) connected thereto decreases and the pressure increases, and the closing member (603) moves downward under the pushing action of the positive pressure to form a clearance, and the air or oil in this small oil chamber (4) flows through the communication pipe fitting (601) to the other small oil chamber (4) until the pressure is balanced. A limit and protection mechanism (7) is used to limit the positions of the inflatable air bags (501) of different sizes.

2. The mobile double-chamber oil filter vehicle according to claim 1, wherein Corresponding oil guiding three-way pipes (10) are arranged at the drain ports (203), and the two oil guiding three-way pipes (10) are connected by corresponding oil guiding ball valves and conduction pipes to controllably communicate the two small oil chambers (4), and the other end of the oil guiding three-way pipe (10) is connected downward with a drain pipe through a corresponding drain valve.

3. The mobile double-chamber oil filter vehicle according to claim 2, characterized in that, The oil inlets (201) and oil outlets (202) of the two small oil chambers (4) are respectively connected to an oil inlet pipe, an oil outlet pipe and an oil filter pipe through corresponding three-way conduits, and the oil filter pipe is connected to the oil filter (8) through a corresponding valve; when the left small oil chamber (4) filters oil, the valve on the oil filter pipe connecting its oil inlet (201) and oil outlet (202) is opened; when the right small oil chamber (4) filters oil, the valve on the oil filter pipe connecting its oil inlet (201) and oil outlet (202) is opened; when the fuel tank (2) filters oil, the oil guiding ball valve is opened to communicate the two small oil chambers (4), and the valve on the oil filter pipe connecting the oil inlet (201) of the left small oil chamber (4) and the oil outlet (202) of the right small oil chamber (4) is opened, or the valve on the oil filter pipe connecting the oil inlet (201) of the right small oil chamber (4) and the oil outlet (202) of the left small oil chamber (4) is opened.

4. A mobile double-chamber oil filter vehicle according to claim 1, characterized in that, The connecting pipe fitting (601) is of a tee structure, and its two transverse branch pipes are respectively connected and arranged in the corresponding small oil chambers (4). Its longitudinal branch pipe is vertically downward and closed. The support spring (602) is fixedly installed in the longitudinal branch pipe and has a tendency to drive the closing member (603) to move upward to block and close the transverse branch pipe.

5. A mobile double-chamber oil filter vehicle according to claim 4, characterized in that, The bottom of the closing member (603) is embedded in the longitudinal branch pipe. Its top is set to be triangular or elliptical in longitudinal section with a narrow upper part and a wide lower part. One end of the support spring (602) is fixed to the closed bottom of the longitudinal branch pipe, and the other end is fixed to the bottom of the closing member (603). A corresponding connecting member (604) is fixed to the inner side wall of the transverse branch pipe above the longitudinal branch pipe. The bottom of the connecting member (604) is provided with an arc-shaped groove adapted to the closing member (603) with an elliptical longitudinal section. When the closing member (603) is installed in place, it is in tight fit with the arc-shaped groove of the connecting member (604).

6. The mobile double-chamber oil filter vehicle according to claim 1, characterized in that, The two inflatable air bags (501) are connected and arranged through corresponding air ducts and a two-way air pump (502); when the two-way air pump (502) is started, one inflatable air bag (501) shrinks and the other inflatable air bag (501) expands equally.

7. A mobile double-chamber oil filter vehicle according to claim 6, characterized in that, A corresponding flow meter (9) is arranged at the oil inlet (201) of the small oil chamber (4), and the flow meter (9) is electrically connected to the two-way air pump (502).

8. A mobile double-chamber oil filter vehicle according to claim 1, characterized in that, The limit protection mechanism (7) includes a limit plate (702) that is driven by a corresponding telescopic cylinder (701) to move up and down above the inflatable air bag (501). The cylinder body of the telescopic cylinder (701) is fixedly installed on the outer side of the top of the fuel tank (2). Its piston rod is hermetically penetrated into the small oil chamber (4) of the fuel tank (2), and a corresponding sleeve member (703) is sleeved outside it at intervals. The sleeve member (703) is connected to the limit plate (702) through a corresponding elastic member (705) and a rod member (704). The elastic member (705) is sleeved outside the piston rod, and one end of it is fixedly connected to the bottom of the sleeve member (703), and the other end is fixedly connected to the rod member (704).

9. The mobile double-chamber oil filter truck according to claim 1, characterized in that, Corresponding access holes are respectively arranged at the top of the fuel tank (2) corresponding to the small oil chamber (4), and corresponding sealing doors (11) are installed at the access holes in an openable and closable manner.

10. The mobile double-chamber oil filter truck according to claim 1, characterized in that, The mobile vehicle body (1) includes a trailer flat plate for supporting and fixedly installing the fuel tank (2). A towing head for connecting to the vehicle head is installed at the front end of the trailer flat plate. Corresponding wheels are rotatably installed at the bottom of the trailer flat plate, and corresponding load-bearing support assemblies (12) are arranged to move up and down corresponding to the wheels. The load-bearing support assemblies (12) are composed of feet driven by lifting hydraulic cylinders.

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