CN213793339U

CN213793339U - Tank cleaning device

Info

Publication number: CN213793339U
Application number: CN202022683311.6U
Authority: CN
Inventors: 张如清; 周溪锋; 陈晓春
Original assignee: Zhongji An Ruihuan Technology Co ltd
Current assignee: Zhongji An Ruihuan Technology Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-27
Anticipated expiration: 2030-11-18

Abstract

The utility model provides a tank cleaning device, which comprises a base frame, a washing frame, a swinging assembly and a tank washer; the flushing frame is connected to the base frame in a vertically slidable manner; the swing assembly comprises a swing bracket arranged on the washing frame, a swing shaft which is arranged on the swing bracket in a penetrating way along the transverse direction of the tank and can rotate around the axis of the swing shaft, a swing rod of which the upper end is arranged on the swing shaft and swings along with the rotation of the swing shaft, and a swing driving unit. Cleaning the inner wall of the tank box by using a tank washer at the lower end of the swing rod; the beat drive unit drives the pendulum shaft and rotates around horizontal axis, thereby make the lower extreme of pendulum rod can follow vertical beat, make the tank washer on the pendulum rod can expand along vertical both ends towards the tank, in order to shorten the distance at tank washer and the vertical both ends of tank, guarantee that rivers wash tank both ends, make rivers can cover the whole inner wall of tank, and make rivers have bigger impact force to tank both ends, in order to carry out abundant washing to the whole inner wall of tank, guarantee the quality of washing.

Description

Tank cleaning device

Technical Field

The utility model relates to a tank cleaning technical field, in particular to tank cleaning device.

Background

After the LNG tank is processed, the impurities such as dust or oil stains adhered to the inner surface of the LNG tank can reduce the overall cold insulation performance of the LNG tank, and the LNG tank needs to be strictly cleaned before further assembly.

In the prior art, when the tank box is cleaned, the tank washer is placed inside the tank box through the manhole to clean the inside of the tank box. But the manhole position of tank box is far away from the both ends of tank box, and rivers are under certain pressure, are difficult to reach the both ends of tank box for wash the inner wall that can not cover whole tank box, wash thoroughly inadequately, and in the position of keeping away from the tank washer, wash pressure and the flow that washes rivers and be littleer, wash totally inadequately, influence the quality of washing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tank cleaning device to can the whole inner wall of case carry out abundant washing.

In order to solve the technical problem, the utility model adopts the following technical scheme:

according to one aspect of the utility model, the utility model provides a tank cleaning device, which comprises a base frame, a washing frame, a swing component and a tank washer; the flushing frame is vertically movably connected to the base frame and can move to the opening of the tank; the swinging assembly comprises a swinging bracket arranged on the washing frame, a swinging shaft which is arranged on the swinging bracket in a penetrating way along the transverse direction of the tank box and can rotate around the axis of the swinging shaft, a swinging rod of which the upper end is arranged on the swinging shaft and deflects along with the rotation of the swinging shaft, and a deflection driving unit which is connected with and drives the swinging shaft to rotate; the swing rod can extend into the tank through the opening of the tank along with the vertical movement of the washing rack; the tank washer is arranged at the lower end of the swing rod and used for washing the inner wall of the tank box.

In some embodiments, the swing driving unit can drive the swing shaft to rotate back and forth, so that the swing rod can swing towards two longitudinal ends of the tank box.

In some embodiments, the swing rods and the swing shafts are correspondingly arranged in two; gears are respectively arranged on the two swing shafts, and the gears on the two swing shafts are meshed with each other; one of the pendulum shafts is in transmission connection with the deflection driving unit.

In some embodiments, two of the swing levers are spaced apart in a lateral direction of the tank.

In some embodiments, the swing bracket comprises a mounting plate mounted below the wash rack and two support plates disposed below the mounting plate at intervals in the lateral direction of the tank; the two swing shafts are rotatably arranged on the two supporting plates in a penetrating way; the two swing rods are respectively arranged at the outer sides of the two supporting plates; the gear is located between the two support plates.

In some embodiments, two of the pendulum shafts are arranged vertically up and down; one end of the upper swing shaft is connected with the swing rod, the other end of the upper swing shaft is connected with a chain wheel, and the chain wheel is in transmission connection with the deflection driving unit.

In some embodiments, the interior of the swing rod is hollow to form a chamber for water flow to pass through; the tank washer is arranged at the bottom end of the swing rod and is communicated with the cavity of the swing rod; and a channel communicated with the cavity of the swing rod is formed in the swing shaft.

In some embodiments, the swing assembly further comprises an adapter mounted on and through the washing frame; the upper end of the adapter is used for leading in cleaning water; the lower end of the adapter extends into the channel of the swing shaft along the axial direction of the swing shaft so as to be communicated with the channel of the swing shaft and can rotate relative to the swing shaft; the adapter is connected with the swing shaft in a sealing mode.

In some embodiments, the rinse rack has a cover panel adapted to the opening of the tank, the cover panel being capable of closing the opening of the tank; the deflection driving unit is arranged above the cover plate; the swing frame is installed below the cover plate.

In some embodiments, the swing assembly further comprises a transmission unit, wherein the transmission unit is installed above the cover plate and penetrates through the cover plate to be rotatably connected with the swing shaft.

In some embodiments, the rinse rack further comprises a proximity switch mounted on the cover plate; the base frame is provided with a lifting motor for driving the cover plate to vertically move; the proximity switch is electrically controlled and connected with the lifting motor; when the cover plate moves downwards to a preset position, the proximity switch is triggered to limit the movement of the cover plate.

In some embodiments, the proximity switch is mounted on an upper surface of the cover plate; the cover plate is also provided with a sliding piece corresponding to the proximity switch; the sliding piece vertically penetrates through the cover plate and can move relative to the cover plate, so that when the cover plate moves downwards to a preset position, the sliding piece is propped against the tank box to press the proximity switch upwards.

In some embodiments, the base frame includes a longitudinally extending longitudinal rail, a trolley slidably connected to the longitudinal rail in a longitudinal direction, a carriage slidably connected to the trolley in a transverse direction, and a vertical rail mounted on the carriage; the flushing rack is connected to the vertical guide rail along the vertical direction in a sliding manner.

In some embodiments, the base frame further comprises a displacement drive unit for moving the carriage and the trolley; the tank cleaning device also comprises a positioning unit, wherein the positioning unit comprises a positioning rod and a laser sensor; the upper end of the positioning rod is connected to the washing frame; the laser sensor is arranged at the bottom end of the positioning rod and used for detecting the relative position of the positioning rod and the tank; the laser sensor is electrically connected with the displacement driving unit.

In some embodiments, the positioning rod extends vertically, and a bottom end of the positioning rod is higher than a bottom end of the swing rod.

According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:

in the utility model, the washing frame moves downwards along the vertical direction, and the swing rod extends into the tank box from the opening of the tank box so as to utilize the tank washer at the lower end of the swing rod to wash the inner wall of the tank box; the beat drive unit drives the pendulum shaft and rotates around horizontal axis, thereby make the lower extreme of pendulum rod can follow vertical beat, make the tank washer on the pendulum rod can expand along vertical both ends towards the tank, in order to shorten the distance at tank washer and the vertical both ends of tank, guarantee that rivers wash tank both ends, make rivers can cover the whole inner wall of tank, and make rivers have bigger impact force to tank both ends, in order to carry out abundant washing to the whole inner wall of tank, guarantee the quality of washing.

Drawings

Fig. 1 is a schematic view of a tank cleaning device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a base frame of an embodiment of the tank cleaning device of the present invention.

FIG. 3 is a schematic view of the connection structure of the flushing rack and the swing assembly of the tank cleaning device.

Fig. 4 is a schematic view of the structure in one direction of the schematic view shown in fig. 3.

Fig. 5 is a schematic view of the structure in the other direction of the schematic view shown in fig. 3.

Fig. 6 is a schematic perspective view of a washing rack according to an embodiment of the tank cleaning device of the present invention.

Fig. 7 is a schematic side view of a washing rack of an embodiment of the tank cleaning device of the present invention.

Fig. 8 is a schematic view of a direction structure of the swing assembly of the embodiment of the tank cleaning device of the present invention.

Fig. 9 is another schematic structural view of the swing assembly of the embodiment of the tank cleaning device of the present invention.

Fig. 10 is a cross-sectional view taken at a-a of fig. 8.

The reference numerals are explained below:

1. a tank cleaning device; 2. a tank box; 100. a base frame; 110. a longitudinal guide rail; 120. a pulley; 130. a carriage; 140. a vertical guide rail; 150. a displacement drive unit; 151. a longitudinal motor; 152. a transverse motor; 160. a lifting motor; 200. a washing rack; 210. a cover plate; 211. a gasket; 212. hoisting the frame; 220. a guide sleeve; 230. a guide sleeve seat; 240. a proximity switch; 250. a slider; 260. a positioning unit; 270. a water inlet pipe; 300. a swing assembly; 310. a swing bracket; 311. mounting a plate; 312. a support plate; 320. a pendulum shaft; 330. a swing rod; 340. a yaw drive unit; 350. a gear; 360. a sprocket; 370. an adapter; 380. a transmission unit; 400. a tank washer.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, the present embodiment provides a tank cleaning device 1, which can extend into a tank 2 from an opening at an upper end of the tank 2 to clean an inner wall of the tank 2. Particularly for cleaning LNG tank, after the tank body of the LNG tank is welded, the tank 2 moves to a cleaning station, and a manhole at the upper end of the tank body of the tank cleaning device 1 extends into the tank 2 to clean the inner wall of the tank 2.

In this embodiment, the tank 2 is horizontally disposed, the tank 2 is longitudinal, and the tank 2 is transverse.

In this embodiment, the tank cleaning device 1 includes a base frame 100 capable of moving in a lateral direction and a longitudinal direction, a wash rack 200 slidably connected below the base frame 100 in a vertical direction, a swing assembly 300 connected below the wash rack 200, and a tank washer 400 installed at a lower end of the swing assembly 300. After tank 2 removed the washing station, bed frame 100 drove and washed frame 200 along horizontal and longitudinal movement, after the opening that washes frame 200 and tank 2 upper end was counterpointed, washed frame 200 and removed downwards for swing subassembly 300 stretches into tank 2 from tank 2's opening inside, and tank cleaning device 400 spun rivers wash tank 2's inner wall.

Referring to fig. 2, the base frame 100 includes a longitudinal rail 110 extending in a longitudinal direction, a trolley 120 slidably coupled to the longitudinal rail 110 in the longitudinal direction, a carriage 130 slidably coupled to the trolley 120 in a lateral direction, a plurality of vertical rails 140 fixed to the carriage 130, and a displacement driving unit 150 for moving the carriage 130 and the trolley 120. The flush rack 200 is slidably attached to the vertical rail 140 in the vertical direction.

In this embodiment, the longitudinal rail 110 is an i-beam extending in the longitudinal direction, and the longitudinal rail 110 is located above the cleaning station. The carriage 130 is slidably coupled to the longitudinal rails 110 by respective rollers.

In some embodiments, the longitudinal rail 110 may be other elongated structures extending in the longitudinal direction, and the sliding rack 130 corresponds to the elongated structures.

The displacement driving unit 150 includes a longitudinal motor 151 for driving the trolley 120 to move longitudinally and a lateral motor 152 for driving the carriage 130 to move laterally. The longitudinal motor 151 drives the pulley 120 to move on the longitudinal guide rail 110 through the cooperation of the gear and the rack. The transverse motor 152 drives the sliding rack 130 to move transversely on the pulley 120 through a gear rack or through a screw rod transmission.

In some embodiments, the longitudinal rail 110 is configured to extend in a lateral direction and the carriage 130 is slidably coupled to the sled 120 in a longitudinal direction.

The vertical guide rail 140 is vertically disposed, and the upper end of the vertical guide rail 140 is connected to the sliding frame 130 and extends downward to the opening of the tank case 2. In this embodiment, two vertical guide rails 140 are provided, and in some embodiments, more than two vertical guide rails 140 are provided.

In this embodiment, the base frame 100 is further provided with a lifting motor 160 for driving the washing rack 200 to move vertically. Specifically, the carriage 130 is provided with a lifting motor 160, and the washing frame 200 is suspended below the lifting motor 160 by a chain or a flexible belt. The rotation of the elevating motor 160 drives the washing rack 200 to vertically ascend and descend along the vertical guide rail 140.

FIG. 3 is a schematic view of the connection structure of the flushing rack and the swing assembly of the tank cleaning device. Fig. 4 is a schematic view of the structure in one direction of the schematic view shown in fig. 3. Fig. 5 is a schematic view of the structure in the other direction of the schematic view shown in fig. 3.

Referring to fig. 3 to 5, the washing frame 200 is slidably coupled to the vertical guide rail 140 and is lifted by the lifting motor 160. The swing assembly 300 is installed on the wash rack 200 and is disposed downward; the can washer 400 is mounted on the lower end of the swing assembly 300. Under the action of the pulling force and the gravity of the lifting motor 160, the washing rack 200 drives the swing assembly 300 to move up and down. When the wash rack 200 moves down to a predetermined position, i.e., the opening of the tank 2, the lower end of the swing assembly 300 and the tank washer 400 extend into the tank 2 to wash the inner wall of the tank 2. After the cleaning is completed, the wash rack 200 drives the swing assembly 300 to move upward, so that the swing assembly 300 and the tank washer 400 are drawn out from the opening of the tank 2.

Fig. 6 is a schematic perspective view of a washing rack according to an embodiment of the tank cleaning device of the present invention. Fig. 7 is a schematic side view of a washing rack of an embodiment of the tank cleaning device of the present invention.

Referring to fig. 3 to 7, in the present embodiment, the washing rack 200 includes a cover plate 210 and a guide sleeve 220 fixed on the cover plate 210. The guide sleeve 220 is sleeved on the vertical guide rail 140, and the cover plate 210 is hoisted by the lifting motor 160.

The cover 210 is a plate-like structure that fits the opening of the tank 2 to be able to close the opening of the tank 2. In this embodiment, the cover plate 210 is circular, and the cover plate 210 closes the opening of the tank 2 after moving downward to a predetermined position, so as to prevent the washing water from flowing out of the tank 2 from the opening of the tank 2 when the tank 2 is washed.

The lower surface of apron 210 is provided with sealed the pad 211 to when the opening of jar case 2 is sealed to apron 210, sealed pad 211 plays sealed effect, prevents to wash water spill, and can move down to the in-process of presetting the position at apron 210, the striking of buffering apron 210 and jar case 2, and its conical design, can play the effect of correction, reduction error, make things convenient for whole mechanism can steadily fall into in jar case 2's opening.

The cover plate 210 is provided with a hoisting frame 212 for hoisting, and a chain on the lifting motor 160 is connected to the hoisting frame 212 for hoisting the cover plate 210.

In this embodiment, a guide sleeve seat 230 is fixedly connected below the guide sleeve 220, and the guide sleeve seat 230 is fixedly connected to the upper surface of the cover plate 210, so as to fix the guide sleeve 220 above the cover plate 210. The guide sleeve 220 and the guide sleeve seat 230 are correspondingly provided with vertical through holes. The cover plate 210 is provided with a corresponding through hole corresponding to the through hole of the guide sleeve 220, so that when the cover plate 210 is lifted, the vertical rod can pass through the through hole of the cover plate 210.

In this embodiment, the guide sleeve 220 is made of nylon, the nylon guide sleeve 220 is sleeved on the periphery of the vertical guide rail 140, and the arrangement of the nylon guide sleeve 220 reduces noise generated in the lifting process of the cover plate 210. The upper end of the nylon guide sleeve 220 exceeds the guide sleeve seat 230, so that when the cover plate 210 moves upwards to the highest position, the impact between the nylon guide sleeve 220 and the sliding frame 130 is buffered, and the noise and the abrasion are reduced.

The washing rack 200 further comprises a proximity switch 240 mounted on the cover plate 210, and the proximity switch 240 is electrically connected with the lifting motor 160; when the cover plate 210 moves downwards to the preset position, the proximity switch 240 is triggered to limit the movement of the cover plate 210, so as to limit the position of the downward movement of the cover plate 210, and prevent the cover plate 210 from impacting the tank 2 downwards, thereby effectively ensuring the safety of the tank 2 and the tank cleaning device 1.

In this embodiment, the proximity switch 240 is fixed on the upper surface of the cover plate 210, the cover plate 210 is further provided with a sliding member 250 corresponding to the proximity switch 240, the sliding member 250 vertically penetrates through the cover plate 210 and can move relative to the cover plate 210, so that when the cover plate 210 moves downwards to a preset position, the sliding member 250 is pushed by the tank 2 to press the proximity switch 240 upwards, thereby limiting the movement of the cover plate 210 and determining that the cover plate 210 is in place. The proximity switch 240 is fixed above the cover plate 210, so that the interference of cleaning water below the cover plate 210 to the proximity switch 240 can be effectively avoided, and the safety of a circuit and a tank washing device is ensured.

In this embodiment, the cover plate 210 is provided with a through hole for the sliding member 250 to pass through, and the through hole is arranged in a staggered manner with the proximity switch 240 in the horizontal direction, so as to effectively prevent the cleaning water from contacting the proximity switch 240.

In some embodiments, the washing rack 200 does not include the slider 250, and the proximity switch 240 is fixed to the lower surface of the cover plate 210 and directly abuts against the tank 2 when the cover plate 210 is moved to the preset position.

Referring again to fig. 3 to 7, the tank cleaning device 1 further includes a positioning unit 260, and the positioning unit 260 includes a positioning rod and a laser sensor; the upper end of the positioning rod is connected to the washing frame 200; the laser sensor is fixed at the bottom end of the positioning rod and used for detecting the relative position of the positioning rod and the tank 2; the laser sensor is electrically connected to the displacement driving unit 150. After the tank 2 to be cleaned is moved to the cleaning station, the laser sensor is used in cooperation with the displacement driving unit 150, and the displacement driving unit 150 drives the washing rack 200 to move to the corresponding position above the opening of the tank 2, so that the washing rack 200 is automatically positioned and moved to the corresponding position.

The downwardly extending of locating lever makes the laser sensor of locating lever bottom be close tank 2 more, and the error of detecting the position is littleer, and the bottom of locating lever is higher than the bottom of pendulum rod 330 to can effectually avoid the laser sensor contact tank 2 of locating lever bottom and damage.

In this embodiment, the upper end of the positioning rod is fixed on the cover plate 210, the laser sensor is installed at the lower end of the positioning rod, and the relative position relationship between the opening of the tank box 2 and the washing rack 200 is calculated through the distance between the laser sensor and the corresponding positions of the inner wall of the tank box 2, so as to adjust the position of the washing rack 200.

In this embodiment, the upper surface of the cover plate 210 is provided with a water inlet pipe 270 for introducing washing water and supplying water to the tank washer 400.

Fig. 8 is a schematic view of a direction structure of the swing assembly of the embodiment of the tank cleaning device of the present invention. Fig. 9 is another schematic structural view of the swing assembly of the embodiment of the tank cleaning device of the present invention. Fig. 10 is a cross-sectional view taken at a-a of fig. 8.

Referring to fig. 3 to 10, the swing assembly 300 includes a swing bracket 310 mounted on the wash rack 200, a swing shaft 320 penetrating the swing bracket 310 in a lateral direction of the tank 2 and rotatable about its axis, a swing link 330 having an upper end mounted on the swing shaft 320 and being swung in accordance with the rotation of the swing shaft 320, and a swing driving unit 340 for driving the swing shaft 320 to rotate. The tank washer 400 is installed at the lower end of the swing link 330, and the swing driving unit 340 drives the swing shaft 320 to rotate to drive the swing link 330 to swing, so that the tank washer 400 at the lower end of the swing link 330 can be unfolded toward both ends of the tank 2 in the longitudinal direction.

The swing bracket 310 includes a mounting plate 311 mounted below the wash rack 200, and two support plates 312 disposed below the mounting plate 311 at intervals in the lateral direction of the tank 2. In this embodiment, the mounting plate 311 is fixed to the lower surface of the cover plate 210 by a fastener.

The swing driving unit 340 drives the swing shaft 320 to rotate back and forth, so that the swing link 330 can swing toward both longitudinal ends of the tank 2.

In this embodiment, two swing rods 330 and two swing shafts 320 are correspondingly arranged, the two swing shafts 320 are respectively provided with a gear 350, and the gears 350 on the two swing shafts 320 are meshed with each other; one of the pendulum shafts 320 is in driving connection with the yaw drive unit 340. The swing driving unit 340 drives the two swing shafts 320 to rotate relatively, so that the lower ends of the two swing rods 330 swing toward the two ends of the tank 2 to open, so as to flush the inside of the tank 2 by using the tank washer 400 at the bottom end of the swing rods 330.

The swing link 330 can be extended into the tank 2 through the opening of the tank 2 along with the vertical movement of the wash rack 200, and the inner wall of the tank 2 is cleaned by the tank washer 400 at the bottom of the swing link 330.

In this embodiment, the swing shafts 320 are rotatably disposed through the supporting plates 312, and the gears 350 on the swing shafts 320 are disposed between the two supporting plates 312, so that the support and stress of the two swing shafts 320 are more stable and reliable, and the connection of the two swing rods 330 is more stable.

In some embodiments, the swing link 330 and the swing shaft 320 are respectively provided as one, and the swing driving unit 340 drives the swing shaft 320 to rotate in the forward direction and the reverse direction, so that the single swing link 330 can swing towards both ends of the tank 2 to wash the inner wall of the tank 2.

In this embodiment, the two swing rods 330 are arranged at intervals in the transverse direction of the tank 2, the two swing rods 330 do not interfere with each other in the swing direction, and both the two swing rods 330 can swing towards both ends of the tank 2 in the longitudinal direction.

The two swing rods 330 are respectively arranged at the outer sides of the supporting plates 312, and specifically, the two swing rods 330 are located at opposite sides of the two supporting plates 312 and are respectively connected to a swing shaft 320. One end of one of the swing shafts 320, which faces away from the corresponding swing rod 330, is provided with a chain wheel 360, and the chain wheel 360 is in transmission connection with the yaw driving unit 340.

The two swing shafts 320 are arranged vertically up and down; one end of the upper swing shaft 320 is connected with the swing rod 330, and the other end is connected with the chain wheel 360. The two swing shafts 320 are arranged up and down, so that the axes of the two swing shafts 320 are on the same vertical plane, and the driving of the two swing shafts 320 by the yaw driving unit 340 is more stable.

In this embodiment, the swing assembly 300 further includes a transmission unit 380, and the transmission unit 380 is disposed above the cover plate 210 and rotatably connected to the swing shaft 320 through the cover plate 210. The transmission unit 380 is disposed above the cover plate 210, so that interference of the washing water to the transmission assembly can be effectively avoided. The transmission unit 380 includes a speed reducing structure and a corresponding chain that connects the sprockets 360.

In this embodiment, the yaw driving unit 340 is a driving motor, and is installed on the upper surface of the cover plate 210, a speed reducing mechanism is disposed on the cover plate 210, the yaw driving unit 340 is connected to the speed reducing mechanism in a transmission manner, and the speed reducing mechanism is connected to the sprocket 360 on the swing shaft 320 in a transmission manner through a chain. The deflection driving unit 340 is disposed above the cover plate 210, so that interference of washing water on the deflection driving unit 340 can be effectively avoided, and the working stability and reliability of the deflection driving unit 340 are ensured.

In this embodiment, the swing rod 330 is hollow to form a cavity for water to pass through; the tank washer 400 is installed at the bottom end of the swing rod 330 and is communicated with the cavity of the swing rod 330; the swing shaft 320 is provided with a channel communicated with the cavity of the swing rod 330, and the channel of the swing shaft 320 is communicated with the water inlet pipe 270 on the cover plate 210.

Referring to fig. 3 to 6 and 10 again, the swing assembly 300 further includes an adapter 370 fixedly inserted into the washing frame 200, and an upper end of the adapter 370 is connected to the water inlet pipe 270 for introducing washing water; the lower end is communicated with the passage of the pendulum shaft 320 to guide the water in the water inlet pipe 270 into the passage of the pendulum shaft 320.

In this embodiment, the adapter 370 penetrates through the upper and lower surfaces of the cover plate 210 and is fixedly connected to the cover plate 210, the upper end of the adapter 370 is connected to the water inlet pipe 270, and the other end of the adapter 370 extends into the passage of the swing shaft 320 along the axial direction of the swing shaft 320 to be communicated with the passage of the swing shaft 320 and can rotate relative to the swing shaft 320; the adapter 370 is hermetically connected with the pendulum shaft 320. The washing water passes through the inlet pipe 270, the coupling 370, the passage of the swing shaft 320, the chamber of the swing lever 330, and the tank washer 400 in sequence, and is dispensed in the tank washer 400 to wash the inner wall of the tank case 2.

The tank washer 400 is capable of spraying water in multiple directions, and the specific structure of the tank washer 400 is described with reference to related structures in the prior art.

In the utility model, the washing frame 200 moves downwards along the vertical direction, and the swing rod 330 extends into the tank 2 from the opening of the tank 2, so that the tank washer 400 at the lower end of the swing rod 330 is used for washing the inner wall of the tank 2; beat drive unit 340 drives pendulum shaft 320 and rotates around horizontal axis, thereby make the lower extreme of pendulum rod 330 can follow vertical beat, make tank washer 400 on the pendulum rod 330 can expand along vertical both ends towards tank box 2, in order to shorten the distance at tank washer 400 and the vertical both ends of tank box 2, guarantee rivers and wash tank box 2 both ends, and the removal of tank washer 400 in tank box 2 can effectual increase rivers cover area, make rivers can cover tank box 2's whole inner wall, and make rivers have bigger impact force to tank box 2 both ends, in order to carry out abundant washing to the whole inner wall of tank box 2, guarantee the quality of washing.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A tank cleaning device, comprising:

a base frame;

the flushing frame is movably connected to the base frame along the vertical direction and can move to the opening of the tank;

the swinging assembly comprises a swinging bracket arranged on the washing frame, a swinging shaft which is arranged on the swinging bracket in a penetrating way along the transverse direction of the tank box and can rotate around the axis of the swinging shaft, a swinging rod of which the upper end is arranged on the swinging shaft and deflects along with the rotation of the swinging shaft, and a deflection driving unit which is connected with and drives the swinging shaft to rotate; the swing rod can extend into the tank through the opening of the tank along with the vertical movement of the washing rack;

and the tank washer is arranged at the lower end of the swing rod and used for washing the inner wall of the tank box.

2. The tank cleaning device according to claim 1, wherein the swing driving unit is capable of driving the swing shaft to rotate in a reciprocating manner so that the swing link can swing toward both longitudinal ends of the tank.

3. The tank cleaning device according to claim 1 or 2, wherein the swing link and the swing shaft are provided in two in correspondence; gears are respectively arranged on the two swing shafts, and the gears on the two swing shafts are meshed with each other; one of the pendulum shafts is in transmission connection with the deflection driving unit.

4. A tank cleaning device as claimed in claim 3, in which the two rockers are spaced apart in the transverse direction of the tank.

5. The tank cleaning apparatus according to claim 4, wherein the swing bracket comprises a mounting plate mounted below the rinse rack and two support plates disposed below the mounting plate at a spacing in a lateral direction of the tank; the two swing shafts are rotatably arranged on the two supporting plates in a penetrating way; the two swing rods are respectively arranged at the outer sides of the two supporting plates; the gear is located between the two support plates.

6. The tank cleaning device according to claim 5, wherein the two swing shafts are arranged vertically; one end of the upper swing shaft is connected with the swing rod, the other end of the upper swing shaft is connected with a chain wheel, and the chain wheel is in transmission connection with the deflection driving unit.

7. The tank cleaning device according to claim 1, wherein the swing link is hollow inside to form a chamber through which water flows; the tank washer is arranged at the bottom end of the swing rod and is communicated with the cavity of the swing rod; and a channel communicated with the cavity of the swing rod is formed in the swing shaft.

8. The tank cleaning apparatus according to claim 7, wherein the swing assembly further comprises an adapter fixedly disposed through the rinse rack; the upper end of the adapter is used for leading in cleaning water; the lower end of the adapter extends into the channel of the swing shaft along the axial direction of the swing shaft so as to be communicated with the channel of the swing shaft and can rotate relative to the swing shaft; the adapter is connected with the swing shaft in a sealing mode.

9. The tank cleaning device according to claim 1, wherein the rinse rack has a cover plate adapted to the opening of the tank, the cover plate being capable of closing the opening of the tank; the deflection driving unit is arranged above the cover plate; the swing bracket is arranged below the cover plate.

10. The tank cleaning apparatus according to claim 9, wherein the swing assembly further comprises a transmission unit disposed above the cover plate and rotatably connected to the swing shaft through the cover plate.

11. The tank cleaning apparatus according to claim 9, wherein the rinse rack further comprises a proximity switch secured to the cover plate; the base frame is provided with a lifting motor for driving the cover plate to vertically move; the proximity switch is electrically controlled and connected with the lifting motor; when the cover plate moves downwards to a preset position, the proximity switch is triggered to limit the movement of the cover plate.

12. The tank cleaning device according to claim 11, wherein the proximity switch is fixed to an upper surface of the cover plate; the cover plate is also provided with a sliding piece corresponding to the proximity switch; the sliding piece vertically penetrates through the cover plate and can move relative to the cover plate, so that when the cover plate moves downwards to a preset position, the sliding piece is propped against the tank box to press the proximity switch upwards.

13. The tank cleaning apparatus of claim 1, wherein the base frame includes a longitudinally extending longitudinal rail, a trolley slidably connected to the longitudinal rail in a longitudinal direction, a carriage slidably connected to the trolley in a transverse direction, and a vertical rail secured to the carriage; the flushing rack is connected to the vertical guide rail along the vertical direction in a sliding manner.

14. The tank cleaning apparatus according to claim 13, wherein the base frame further comprises a displacement drive unit for moving the carriage and the trolley; the tank cleaning device also comprises a positioning unit, wherein the positioning unit comprises a positioning rod and a laser sensor; the upper end of the positioning rod is fixed on the washing frame; the laser sensor is fixed at the bottom end of the positioning rod and used for detecting the relative position of the positioning rod and the tank; the laser sensor is electrically connected with the displacement driving unit.

15. The tank cleaning device according to claim 14, wherein the positioning rod extends vertically, and a bottom end of the positioning rod is higher than a bottom end of the swing link.