A large tank bottom cleaning device and method of use thereof

Abstract

The application relates to the technical field of oil tank cleaning, and discloses a large oil tank bottom cleaning device, which comprises a positioning assembly, the positioning assembly is configured to be positioned with an oil outlet pipe at the center of the bottom surface of an oil tank, a rotating seat is arranged on the positioning assembly; a trolley body capable of electrically walking, a scraping oil support is arranged at the bottom of the trolley body, the scraping oil support is in a U-shaped structure, the open end of the scraping oil support is oriented to the advancing direction of the trolley body, the lower end of the scraping oil support is in elastic abutment with the bottom surface of the oil tank, an oil suction pipe is arranged at the inner wall of the lower end of the scraping oil support, an oil pump connected with the oil suction pipe is arranged on the trolley body, the output end of the oil pump is connected to the outside of the oil tank through a pipeline; a flexible cable is arranged between the trolley body and the positioning assembly, a winding mechanism is arranged at the top of the trolley body, one end of the flexible cable is connected with the rotating seat, and the other end of the flexible cable is connected with the winding mechanism. The application has the beneficial effects of convenient use and good cleaning effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil tank cleaning, in particular to a large oil tank bottom cleaning device and a use method thereof. BACKGROUND

[0002] An oil tank is used for storing edible oil in a grain and oil storage depot. The oil tank is usually in a cylindrical shape, with a bottom surface diameter of 14-20 m and a depth of 10-15 m, and an oil outlet pipe is arranged at the center of the bottom surface. Edible oil is stored in the oil tank, and impurities in the oil will be deposited on the bottom of the oil tank to form oil dirt. Before the oil in the oil tank is emptied and new oil is stored, the oil dirt on the bottom of the oil tank needs to be cleaned. Currently, manual cleaning is usually used, but manual cleaning has many problems. First, the efficiency of manual cleaning is very low. For example, for an oil tank with a diameter of 14 m, the area of the bottom that needs to be cleaned is about 150 square meters, and it takes several hours for one person to clean it. Second, manual cleaning has safety hazards. The space in the oil tank is enclosed, the air quality is poor, and the smell is heavy. Staying in the oil tank for a long time will have adverse effects on the body and mind, and the presence of oil dirt on the bottom of the oil tank makes it very slippery, so the person needs to walk to clean it, which is easy to slip and get hurt. SUMMARY

[0003] The present application provides a large oil tank bottom cleaning device and a use method thereof, which has a small volume, can sink to the bottom of the oil tank, is easy to use, and has good cleaning effect.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] A large oil tank bottom cleaning device comprises a positioning assembly configured to be positioned with an oil outlet pipe at the center of the bottom surface of the oil tank, and a rotating seat is arranged on the positioning assembly; an electrically-controlled walking trolley body, a scraping oil support is arranged at the bottom of the trolley body, the scraping oil support is in a U-shaped structure, the open end of the scraping oil support is directed to the advancing direction of the trolley body, and the lower end of the scraping oil support is in elastic abutment with the bottom surface of the oil tank; an oil suction pipe is arranged at the inner wall of the lower end of the scraping oil support, an oil pump connected with the oil suction pipe is arranged on the trolley body, and the output end of the oil pump is connected to the outside of the oil tank through a pipeline; a flexible cable is arranged between the trolley body and the positioning assembly, a winding mechanism is arranged at the top of the trolley body, one end of the flexible cable is connected with the rotating seat, and the other end of the flexible cable is connected with the winding mechanism.

[0006] As preferred, the trolley body is provided with a connecting support, the bottom of the trolley body is provided with a limiting support, the limiting support is fixedly arranged at the lower end of the connecting support; the limiting support is similar in shape to the oil scraping support, the oil scraping support is slidingly arranged at the inner side of the limiting support, the limiting support is provided with a plurality of vertical slot holes, the oil scraping support is provided with sliding pins matched with the vertical slot holes; a plurality of connecting strips are arranged between the upper ends of the oil scraping support, and a plurality of compression springs are arranged between the connecting strips and the bottom surface of the trolley body.

[0007] As preferred, the opening end of the oil scraping support extends outwardly to form an oil scraping extension plate. The outwardly inclined oil scraping extension plate increases the oil scraping width and facilitates the trolley body to walk and increase the adhesion of the wheels.

[0008] As preferred, the oil suction pipe is in a U-shaped structure, and a plurality of oil suction holes are arranged on the side surface of the oil suction pipe.

[0009] As preferred, the trolley body is provided with an electromagnet assembly on both sides. Since the bottom of the oil tank is very slippery, the wheels are prone to skidding and affect normal walking. At this time, the electromagnet can be turned on, and the electromagnet generates a magnetic attraction force on the bottom of the oil tank after being powered on, thereby increasing the pressure of the trolley body on the bottom surface of the oil tank, and further increasing the friction, which is conducive to the normal walking of the trolley body.

[0010] As preferred, the winding mechanism includes a winding wheel driven to rotate by a motor, guide wheels arranged on the front and rear sides of the winding wheel, and two flexible cables. One end of each of the two flexible cables is connected to the rotating seat, and the other end of each of the two flexible cables is connected to the winding wheel after passing through the guide wheels. When the motor drives the winding wheel to rotate, the two flexible cables are simultaneously wound.

[0011] As preferred, the trolley body is provided with a camera assembly at the front end and the rear end, and the camera assembly is provided with an LED lamp around the periphery.

[0012] As preferred, the positioning assembly includes a support plate, a connecting sleeve fixedly arranged at the center of the bottom of the support plate, an annular seat fixedly arranged at the lower end of the connecting sleeve, a plurality of jacks distributed in the circumferential direction and arranged in the annular seat, the jacks being configured to slide in the radial direction, a taper seat arranged at the center of the annular seat, a tapered surface of the taper seat abutting against the inner end of the jacks, a power assembly arranged on the support plate and configured to drive the taper seat to move in the circumferential direction, and a return spring arranged on the jacks.

[0013] When the power assembly drives the taper seat to descend, the outer ends of all the jacks are synchronously extended, and when the power assembly drives the taper seat to ascend, all the jacks are retracted under the action of the return spring.

[0014] Preferably, the upper end of the support plate is provided with a connecting seat, the center of the connecting seat is provided with a rotating shaft, the rotating seat is sleeved on the rotating shaft to form a rotating connection, and the upper end of the rotating shaft is fixedly provided with a lifting ring.

[0015] A method for using a large oil tank bottom cleaning device, comprising the following steps:

[0016] s1, the rotating seat is separated from the positioning assembly, the positioning assembly and the trolley body are placed into the oil tank bottom through a lifting appliance;

[0017] s2, personnel enter the oil tank, connect and position the positioning assembly and the oil outlet pipe at the center of the oil tank bottom surface, drive the trolley body to move to the edge of the oil tank body, and sleeve the rotating seat into the rotating shaft on the positioning assembly;

[0018] s3, control the motor to rotate, so that the winding wheel winds the flexible cable to a taut state, and the personnel leave the oil tank;

[0019] s4, the personnel control the trolley body to advance outside the oil tank, and the oil pump is started, the oil dirt at the bottom of the oil tank is scraped into the oil scraping support and is sucked to the outside of the oil tank through the oil suction pipe and the oil pump;

[0020] s5, in the process of advancing of the trolley body, the motor gradually winds the flexible cable, and finally the trolley body forms a spiral line motion track at the bottom of the oil tank, and then the oil dirt at the whole bottom of the oil tank is cleaned.

[0021] Therefore, the present application has the following beneficial effects: (1) the overall volume is small, and the oil tank can be freely loaded and used; (2) the trolley body is simple to control and stable to walk, the trolley body only needs to be controlled to advance in one direction, and the trolley body is limited by the flexible cable during the advancing process, so that the motion direction of the trolley body is more stable and not easy to slip; (3) during the cleaning process, personnel do not need to enter the oil tank, and personnel only enter the oil tank for a short time when installing and taking out the cleaning device; (4) the trolley body moves and cleans along the spiral line track, is not easy to miss, and the whole surface of the oil tank bottom is more completely cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the present application.

[0023] Figure 2 It is a connecting schematic view of the positioning assembly and the oil outlet pipe at the center of the oil tank bottom surface.

[0024] Figure 3 It is a connecting schematic view of the positioning assembly and the trolley body.

[0025] Figure 4 It is a structural schematic view of the trolley body.

[0026] Figure 5 It isFigure 4 Another perspective view of the trolley body.

[0027] Figure 6 As Figure 4 The exploded view.

[0028] Figure 7 The connection diagram of the oil scraping support, the limiting support and the oil suction pipe.

[0029] Figure 8 The exploded view of the positioning assembly.

[0030] Figure 9 The schematic diagram of the top rod extension.

[0031] Figure 10 The motion trajectory diagram of the trolley body.

[0032] Figure 11 Another motion trajectory diagram of the trolley body.

[0033] In the figure: positioning assembly 1, support plate 10, connecting sleeve 11, annular seat 12, top rod 13, conical seat 14, power assembly 15, return spring 16, connecting seat 17, rotating shaft 18, lifting ring 19,

[0034] Rotating seat 100, trolley body 2, winding mechanism 20, winding wheel 200, guide wheel 201, motor 202, electromagnet assembly 21, camera assembly 22, LED lamp 23, oil scraping support 3, oil scraping extension plate 300, sliding pin 30, connecting strip 31, compression spring 32, oil suction pipe 4, oil suction hole 40, oil pump 5, pipe 6, flexible cable 7, connecting support 8, limiting support 80, vertical groove hole 800, oil tank 101. DETAILED DESCRIPTION

[0035] In order to make the technical problems to be solved by the present application, the technical solutions and the beneficial technical effects more clear and explicit, the present application will be further described in detail below in combination with the drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the protection scope of the present application.

[0036] It should be understood that, in this document, the expressions "first", "second", etc. are only used for descriptive purposes, and should not be understood as indicating or implying relative importance, nor should it be understood as implicitly indicating the number of the indicated technical features. The features with "first", "second" can explicitly or implicitly indicate that they include at least one such feature.

[0037] As Figures 1-9The device for cleaning the bottom of a large oil tank comprises a positioning assembly 1 configured to be positioned with an oil outlet pipe at the center of the bottom surface of the oil tank, a rotating seat 100 being arranged on the positioning assembly; a small car body 2 capable of being driven to move, a scraping oil support 3 being arranged at the bottom of the small car body 2, the scraping oil support 3 being in a U-shaped structure, the opening end of the scraping oil support 3 being directed to the advancing direction of the small car body, the lower end of the scraping oil support 3 being in elastic abutment with the bottom surface of the oil tank, an oil suction pipe 4 being arranged at the inner wall of the lower end of the scraping oil support 3, an oil pump 5 being arranged on the small car body and connected with the oil suction pipe, the output end of the oil pump 5 being connected to the outside of the oil tank through a pipeline 6; a flexible cable 7 being arranged between the small car body 2 and the positioning assembly 1, a winding mechanism 20 being arranged at the top of the small car body 2, one end of the flexible cable being connected with the rotating seat, the other end of the flexible cable being connected with the winding mechanism.

[0038] As shown in the drawings, Figures 4-7 the small car body 2 is provided with a connecting support 8, the bottom of the small car body 2 is provided with a limiting support 80, the limiting support 80 being fixedly arranged at the lower end of the connecting support; the limiting support 80 is similar in shape to the scraping oil support 3, the scraping oil support 3 being slidingly arranged at the inner side of the limiting support 80, a plurality of vertical slot holes 800 being arranged on the limiting support 80, a plurality of sliding pins 30 being arranged on the scraping oil support 3 and matched with the vertical slot holes; a plurality of connecting strips 31 being arranged between the upper ends of the scraping oil support 3, a plurality of compression springs 32 being arranged between the connecting strips and the bottom surface of the small car body.

[0039] the opening end of the scraping oil support 3 extends outwardly and obliquely to form a scraping oil extension plate 300; the oil suction pipe 4 is in a U-shaped structure, a plurality of oil suction holes 40 being arranged on the side surface of the oil suction pipe 4; a plurality of electromagnet assemblies 21 being arranged on both sides of the small car body 2.

[0040] the winding mechanism 20 comprises a winding wheel 200 driven to rotate by a motor 202, guide wheels 201 arranged on both sides of the winding wheel, two flexible cables 7 being arranged, one end of each of the two flexible cables being connected with the rotating seat, the other end of each of the two flexible cables being connected with the winding wheel after passing through the guide wheels, the two flexible cables being simultaneously wound when the motor 202 drives the winding wheel 200 to rotate; a camera assembly 22 being arranged at the front end and the rear end of the small car body 2, an LED lamp 23 being arranged on the outer periphery of the camera assembly.

[0041] As shown in the drawings, Figure 8 and Figure 9As shown, the positioning assembly 1 comprises a support plate 10, a connecting sleeve 11 fixed at the bottom center of the support plate, a lower end of the connecting sleeve is fixed with an annular seat 12, a plurality of top rods 13 are arranged in the annular seat in a circumferential direction, the top rods are configured to slide along the radial direction, a taper seat 14 is arranged at the center of the annular seat, a taper surface of the taper seat is in abutment with an inner end of the top rod, a power assembly 15 is arranged on the support plate to drive the taper seat to move in the circumferential direction, a reset spring 16 is arranged on the top rod; an upper end of the support plate 10 is provided with a connecting seat 17, a rotating shaft 18 is arranged at the center of the connecting seat, the rotating seat is sleeved on the rotating shaft to form a rotating connection, an upper end of the rotating shaft is fixed with a lifting ring 19. When the power assembly drives the taper seat to descend, the outer ends of all the top rods are synchronously extended, when the power assembly drives the taper seat to ascend, all the top rods are retracted under the action of the reset spring.

[0042] In some embodiments, the power assembly 15 adopts an electric cylinder to directly drive the taper seat to ascend and descend; in some other embodiments, the power assembly adopts a motor and a screw rod structure, the screw rod passes through the taper seat and is threadedly connected with the taper seat, and the motor drives the screw rod to rotate to realize the ascending and descending of the taper seat.

[0043] A use method of the large oil tank bottom cleaning device comprises the following steps:

[0044] s1, the rotating seat is separated from the positioning assembly, the positioning assembly and the trolley body are placed into the oil tank bottom through a lifting tool;

[0045] s2, a person enters the oil tank, connects and positions the positioning assembly with an oil outlet pipe at the center of the oil tank bottom surface, drives the trolley body to move to the edge of the oil tank body, and sleeves the rotating seat into the rotating shaft on the positioning assembly;

[0046] s3, the motor is controlled to rotate, so that the winding wheel winds the flexible cable to a taut state, and the person leaves the oil tank;

[0047] s4, the person controls the trolley body to advance outside the oil tank, and the oil pump is turned on, so that the oil dirt on the oil tank bottom is scraped into the oil scraping support and is sucked to the outside of the oil tank through the oil suction pipe and the oil pump;

[0048] s5, in the process of advancing of the trolley body, the motor gradually winds the flexible cable, and finally the trolley body forms a spiral line (as shown by the dotted line in Figure 10 ) movement track on the oil tank bottom, so as to clean the oil dirt on the whole oil tank bottom.

[0049] In some embodiments, the movement track of the trolley body can also adopt a concentric circle, that is, after the trolley body rotates one circle along the oil tank bottom, the winding wheel winds one end of the flexible cable, so that the radius of the trolley body is reduced, as shown in Figure 11 .

[0050] The principle of the present application is as follows in combination with the drawings: the trolley body and the positioning assembly are arranged in the oil tank in a manner that Figure 1The shown state is arranged in the oil tank 101, the trolley body moves forward, under the action of the flexible cable, the trolley body moves along the circumferential direction of the oil tank, in the movement process, the winding wheel gradually winds the flexible cable, finally the track of the trolley body movement is as Figure 10 The vortex line shown by the dashed line in the middle, the trolley body is stable in the movement process and is not easy to slip, the whole bottom surface of the oil tank is completely covered by the movement track, and the cleaning is completely dead angle-free;The lower end of the oil scraping support is always elastically attached to the bottom of the oil tank, with the advance of the trolley body, the oil dirt on the bottom surface of the oil tank is scraped together and sucked out of the oil tank by the oil suction pipe, the process is automatic, personnel can observe the state of the bottom of the oil tank through the camera outside the oil tank;So as to save the process of personnel entering the oil tank for cleaning.

[0051] The present application has the following beneficial effects: (1) small overall volume, can be freely loaded into the oil tank for use;(2) the trolley body is simple to control and stable to walk, the trolley body only needs to control one-way forward, and the trolley body is more stable in the movement direction and is not easy to slip during the forward process;(3) during the cleaning process, personnel do not need to enter the oil tank, personnel only enter the oil tank for a short time when installing the cleaning device and taking out the cleaning device;(4) the trolley body moves along the track of the vortex line for cleaning, and is not easy to miss, and the cleaning of the whole surface of the bottom of the oil tank is more complete.

[0052] In the description of the present application, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end and the other end are based on the positions or relationships shown in the drawings, and are only for the purpose of more clearly and conveniently describing the technical solutions of the present application, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as a limitation on the present application.

[0053] Although specific embodiments of the present application are described in detail herein, they are given only for the purpose of explanation and should not be considered as limiting the scope of the present application. Various substitutions, changes and modifications can be conceived without departing from the spirit and scope of the present application.

Claims

1. A large oil tank bottom cleaning device, characterized by, Comprising A positioning assembly is configured to be positioned with the oil outlet pipe at the center of the tank bottom surface, and a rotating seat is arranged on the positioning assembly; The trolley body is provided with an oil scraping support at the bottom, the oil scraping support has a U-shaped structure, the open end of the oil scraping support is directed to the advancing direction of the trolley body, the lower end of the oil scraping support is in elastic abutment with the bottom surface of the oil tank, an oil suction pipe is arranged at the inner wall of the lower end of the oil scraping support, an oil pump connected with the oil suction pipe is arranged on the trolley body, and the output end of the oil pump is connected to the outside of the oil tank through a pipeline; A flexible cable is arranged between the trolley body and the positioning assembly, a winding mechanism is arranged at the top of the trolley body, one end of the flexible cable is connected with the rotating seat, and the other end of the flexible cable is connected with the winding mechanism; The positioning assembly comprises a support plate and a connecting sleeve fixedly arranged at the center of the bottom of the support plate, an annular seat is fixedly arranged at the lower end of the connecting sleeve, a plurality of top rods are arranged in the annular seat in a circumferential direction, the top rods are configured to slide in a radial direction, a taper seat is arranged at the center of the annular seat, the taper surface of the taper seat is in abutment with the inner end of the top rod, a power assembly for driving the taper seat to move in a circumferential direction is arranged on the support plate, and a return spring is arranged on the top rod; When the power assembly drives the taper seat to descend, the outer ends of all the top rods are synchronously extended, and when the power assembly drives the taper seat to ascend, all the top rods are retracted under the action of the return spring.

2. A large oil tank bottom cleaning device according to claim 1, characterized in that, A connecting support is arranged on the trolley body, a limiting support is arranged at the bottom of the trolley body, the limiting support is fixedly arranged at the lower end of the connecting support, the limiting support has a shape similar to that of the oil scraping support, the oil scraping support is slidably arranged at the inner side of the limiting support, a plurality of vertical slot holes are arranged on the limiting support, a sliding pin matched with the vertical slot hole is arranged on the oil scraping support, a plurality of connecting strips are arranged between the upper ends of the oil scraping support, and a plurality of compression springs are arranged between the connecting strips and the bottom surface of the trolley body.

3. A large oil tank bottom cleaning device according to claim 1 or 2, characterized in that The open end of the oil scraping support extends outwardly and forms an oil scraping extension plate.

4. A large oil tank bottom cleaning device according to claim 1 or 2, characterized in that The oil suction pipe has a U-shaped structure, and a plurality of oil suction holes are arranged on the side surface of the oil suction pipe.

5. A large oil tank bottom cleaning device according to claim 1 or 2, characterized in that Electromagnetic assemblies are arranged on both sides of the trolley body.

6. A large oil tank bottom cleaning device according to claim 1, characterized in that, The winding mechanism comprises a winding wheel driven to rotate by a motor and guide wheels arranged on the front and rear sides of the winding wheel, two flexible cables are arranged, one end of each of the two flexible cables is connected with the rotating seat, the other end of each of the two flexible cables is connected with the winding wheel after passing around the guide wheel, and when the motor drives the winding wheel to rotate, the two flexible cables are simultaneously wound.

7. A large oil tank bottom cleaning device according to claim 1, characterized in that, Camera assemblies are arranged at the front end and the rear end of the trolley body, and LED lamps are arranged on the outer periphery of the camera assemblies.

8. A large oil tank bottom cleaning device according to claim 7, characterized in that A connecting seat is arranged at the upper end of the support plate, a rotating shaft is arranged at the center of the connecting seat, the rotating seat is sleeved on the rotating shaft to form a rotating connection, and a lifting ring is fixedly arranged at the upper end of the rotating shaft.

9. A method of using a large oil tank bottom cleaning device, suitable for the cleaning device according to any one of claims 1-8, characterized in that, The method comprises the following steps: s1, the rotating seat is separated from the positioning assembly, the positioning assembly and the trolley body are placed into the bottom of the oil tank by means of a lifting tool; s2, a person enters the oil tank, connects and positions the positioning assembly with the oil outlet pipe at the center of the tank bottom surface, drives the trolley body to move to the edge of the oil tank body, and sleeves the rotating seat into the rotating shaft on the positioning assembly. s3, control the motor to rotate, so that the winding wheel winds the flexible cable to the taut state, and the personnel leave the oil tank; s4, the personnel controls the car body to advance outside the oil tank, and the oil pump is turned on, the oil dirt at the bottom of the oil tank is scraped into the oil scraping support and is sucked to the outside of the oil tank through the oil suction pipe and the oil pump; s5, in the process of advancing the car body, the motor gradually winds the flexible cable, and finally the car body forms a spiral line motion track at the bottom of the oil tank, and then the oil dirt at the bottom of the entire oil tank is cleaned.

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