Hopper cleaning tooling and method

Abstract

The present application relates to the field of hopper cleaning, in particular to a hopper cleaning tool and method, the hopper cleaning tool comprising at least three scrubbing units, the plurality of scrubbing units being sequentially connected in a polygonal shape; each of the scrubbing units comprises an expansion plate and a scrubbing cloth, the scrubbing cloth being located on the front side of the expansion plate, the two ends of the scrubbing cloth being fixedly connected to the two ends of the expansion plate, and the scrubbing cloth being elastic; the expansion plate comprises a first sliding plate and a second sliding plate, the first sliding plate and the second sliding plate being transversely slidably connected; and an elastic member is connected between the first sliding plate and the second sliding plate to make the expansion plate have an elongation trend. Through the present application, the inner side wall of the hopper can be more fully scrubbed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hopper cleaning, in particular to a hopper cleaning tool and method. BACKGROUND

[0002] Titanium alloy consumable electrode is pressed from mixed block alloy raw materials. Before mixing the block alloy raw materials, different types of alloy raw materials are placed in different material boxes, a hopper is arranged below the discharge port of the material box, and a mixing device is arranged below the hopper. When mixing is needed, the discharge port of the material box is opened, different raw materials in different material boxes enter the hopper together, and then enter the mixing device downward along the hopper, and the mixing device mixes the raw materials.

[0003] When the alloy raw materials flow downward in the hopper, the surface of the alloy raw materials collides with, contacts and rubs against the inner wall of the hopper, so that the inner wall of the hopper adheres to the dust and powder of the alloy raw materials. Whenever different types of titanium alloys are pressed, different component ratios of alloy raw materials are needed to mix different types of titanium alloys. Therefore, in order to avoid the influence of the dust and powder adhered to the inner wall of the hopper on the purity of the titanium alloy pressing, the inner wall of the hopper needs to be cleaned.

[0004] Combination Figure 1 As shown in the figure, the current hopper 1 is conical (the four side walls of the hopper 1 are inclined, and the four side walls of the hopper 1 are close to each other from top to bottom), and the hopper 1 is relatively deep, with a depth of 2-5 m. The current cleaning method of the hopper 1 is to pour alcohol onto the inner wall of the hopper 1, and then manually scrub it. For the deep part of the hopper 1, the arm cannot reach, so the alcohol can only be poured along the inner wall of the hopper 1, and the alcohol flows downward, so the deep side wall cannot be scrubbed. In this way, the cleaning effect of the inner wall of the deep part of the hopper is poor. At the same time, the hopper has a large volume, and the four sides need to be scrubbed manually in turn, which is relatively troublesome and has a large workload. SUMMARY

[0005] The present application aims to provide a hopper cleaning tool and method to achieve more sufficient scrubbing of the inner wall of the hopper.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a hopper cleaning tool, comprising at least three scrubbing units, a plurality of scrubbing units are connected in sequence into a polygon;

[0007] Each scrubbing unit comprises a telescopic plate and a scrubbing cloth, the scrubbing cloth is located on the front surface of the telescopic plate, the two ends of the scrubbing cloth are fixedly connected to the two ends of the telescopic plate, and the scrubbing cloth has elasticity;

[0008] The telescopic plate comprises a first sliding plate and a second sliding plate, the first sliding plate and the second sliding plate are transversely slidably connected, and an elastic member is connected between the first sliding plate and the second sliding plate to make the telescopic plate have an elongation trend.

[0009] The principle and advantages of the present scheme are: the scrubbing units in the present scheme are multiple, and the multiple scrubbing units are sequentially connected into a polygon from head to tail, so as to adapt to the shape of the hopper. After the hopper cleaning tool is put into the hopper, each scrubbing unit can be opposite to the inner wall of the hopper, so as to scrub the corresponding inner wall of the hopper.

[0010] After the hopper cleaning tool is put into the hopper, the scrubbing cloth is attached to the inner wall of the hopper because it is located on the front surface of the telescopic plate (the front surface refers to the surface opposite to the inner wall of the hopper). When the hopper cleaning tool moves vertically, the scrubbing cloth moves on the inner wall of the hopper, thereby scrubbing the inner wall of the hopper.

[0011] The telescopic plate in the present scheme is used to support the scrubbing cloth. When the scrubbing cloth contacts the inner wall of the hopper, the telescopic plate is located behind the scrubbing cloth (the side of the scrubbing cloth away from the inner wall of the hopper) to support the scrubbing cloth, ensuring that the scrubbing cloth does not retreat and ensuring that the scrubbing cloth can fully contact the hopper. The telescopic plate in the present scheme can be telescopic, and the telescopic plate is telescopic by the relative transverse sliding of the first sliding plate and the second sliding plate. When the hopper cleaning tool moves downward in the hopper, the side walls of the hopper gradually approach each other, so the telescopic plate will automatically shorten under the restriction of the inner wall of the hopper, and the volume of the hopper cleaning tool will automatically decrease, thereby adapting to the situation that the side walls of the hopper gradually approach each other and ensuring that the hopper cleaning tool can move downward normally. Since the scrubbing cloth is elastic, when the telescopic plate shortens, the scrubbing cloth will adaptively shrink under the action of its own elasticity. When the telescopic plate shortens, the first sliding plate and the second sliding plate press the elastic member.

[0012] When the hopper cleaning tool moves upward in the hopper, the side walls of the hopper gradually move away from each other at this time, so the telescopic plate will automatically lengthen under the action of the elastic member, and the volume of the hopper cleaning tool will automatically increase, thereby adapting to the situation that the side walls of the hopper gradually move away from each other from bottom to top and ensuring that the volume of the hopper cleaning tool can correspondingly increase when the hopper cleaning tool moves upward, so as to scrub the inner wall of the hopper. Since the scrubbing cloth is elastic, when the telescopic plate lengthens, the scrubbing cloth will also be elongated by deformation, and the scrubbing length of the scrubbing cloth will also correspondingly increase.

[0013] In summary, the hopper cleaning tool in the present application can adapt to the shape of the hopper when it moves in the hopper. When it moves from top to bottom, the volume can correspondingly decrease, and when it moves from bottom to top, the volume can correspondingly increase, thereby enabling the hopper to be scrubbed in all directions. When the hopper cleaning tool scrubs the inner side wall of the hopper, it can simultaneously scrub all the inner side walls of the hopper, and it can also scrub the deep part of the hopper. Compared with the manual scrubbing method, the efficiency of scrubbing is improved, and the effect of hopper scrubbing is better.

[0014] Preferably, as an improvement, the first sliding plate is fixedly connected with a first fixed plate, the second sliding plate is fixedly connected with a second fixed plate, the second fixed plate is fixedly connected with a guide rod, the guide rod is transversely slidably connected with the first fixed plate, and the elastic member is located between the first fixed plate and the second fixed plate.

[0015] Thus, when the first sliding plate and the second sliding plate slide relative to each other, the guide rod slides on the first fixed plate, thereby playing a guiding role for the sliding of the first sliding plate and the second sliding plate. The elastic member is located between the first fixed plate and the second fixed plate, so that when the telescopic plate is shortened, the first fixed plate and the second fixed plate approach each other, the first fixed plate and the second fixed plate extrude the elastic member, thereby causing the elastic member to generate elastic force, and the elastic force of the elastic member acts on the first fixed plate and the second fixed plate, so that the first sliding plate and the second sliding plate have a tendency to move away from each other.

[0016] Preferably, as an improvement, the elastic member is a compression spring, and the elastic member is sleeved on the guide rod. Thus, the elastic member is sleeved on the guide rod, which can avoid deformation of the elastic member when it is extruded, thereby ensuring normal operation of the elastic member.

[0017] Preferably, as an improvement, the first sliding plate is fixedly connected with a transverse air cylinder, the guide rod is transversely and sealingly slidably connected in the air cylinder, a piston is fixedly connected to a portion of the guide rod located in the air cylinder, and the piston is transversely slidably connected in the air cylinder.

[0018] The scrubbing cloth and the telescopic plate are provided with an air cushion, the piston divides the air cylinder into a first chamber and a second chamber, the second chamber is close to the second fixed plate and communicates with the air cushion, and the first chamber communicates with the outside.

[0019] Since the scrubbing cloth is elastic, when the telescopic plate is shortened, the scrubbing cloth will be contracted together under the action of the elastic force, thereby causing the scrubbing cloth to gather together and become thick, so as to fully contact the inner wall of the hopper. However, after the scrubbing cloth becomes thick, the friction between the scrubbing cloth and the hopper will increase, thereby affecting the normal movement of the hopper cleaning tool in the hopper. When the telescopic plate is elongated, the scrubbing cloth will be elongated, at this time, the scrubbing cloth is expanded in the length direction, and the scrubbing cloth becomes relatively thin, so that the close degree of the scrubbing cloth to the inner wall of the hopper becomes small, thereby affecting the cleaning effect of the scrubbing cloth on the inner wall of the hopper.

[0020] When the telescopic plate is lengthened, the second sliding plate drives the guide rod to move, the guide rod drives the piston to move in the air cylinder, thereby gradually pushing the gas in the second chamber into the air cushion, the air cushion is elastic, the air cushion gradually expands and becomes thicker after the gas in the air cushion becomes more, the air cushion becomes thicker to compensate for the deficiency caused by the thinning of the scouring cloth after the scouring cloth is unfolded in the length direction, thereby ensuring the tightness of the scouring cloth and the inner wall of the hopper, and ensuring the scouring effect. When the telescopic plate is shortened, the second sliding plate drives the guide rod to move, the guide rod drives the piston to move reversely in the air cylinder, thereby increasing the space of the second chamber, generating negative pressure in the second chamber, and the gas in the air cushion enters the second chamber, the gas in the air cushion becomes smaller, and the thickness of the air cushion becomes thinner, the air cushion becomes thinner to compensate for the deficiency caused by the thickening of the scouring cloth after the scouring cloth is contracted in the length direction, thereby avoiding the influence of the thickening of the scouring cloth on the normal movement of the hopper cleaning tool, and ensuring the normal and smooth movement of the hopper cleaning tool.

[0021] Preferably, as an improvement, the end of the telescopic plate is provided with a sliding unit, the sliding unit comprises a fixed block, a wheel frame and a roller for rolling on the inner wall of the hopper, the fixed block is fixedly connected to the end of the telescopic plate, the wheel frame is fixedly connected to the fixed block, and the roller is rotatably connected to the wheel frame.

[0022] In the scheme, when the hopper cleaning tool moves in the hopper, the roller rolls on the inner wall of the hopper, and the hopper cleaning tool moves more smoothly in the hopper. In addition, the hopper can also be improved, and a roller groove is arranged on the inner wall of the hopper, so that when the hopper cleaning tool moves in the hopper, the roller rolls in the roller groove, and the roller rolling in the roller groove plays a limiting and guiding role for the movement of the hopper cleaning tool in the hopper, so that the hopper cleaning tool does not deviate laterally in the hopper, and the stability of the movement of the hopper cleaning tool is ensured.

[0023] Preferably, as an improvement, the ends of the two adjacent telescopic plates share one fixed block. Thus, the ends of the two adjacent telescopic plates do not need to be provided with two fixed blocks, and the structure is simple.

[0024] Preferably, as an improvement, the spraying unit is located in the space surrounded by the plurality of scouring units; the spraying unit comprises a spray head frame and a spray head, the spray head is installed below the spray head frame, and a telescopic rod is connected between the spray head frame and each telescopic plate.

[0025] Thus, during the movement of the hopper cleaning tool, the spray head sprays alcohol on the inner wall of the hopper, and then the scouring cloth immediately scours the inner wall of the hopper, without the need for manual pouring of alcohol on the inner wall of the hopper, and the operation is simple and convenient. Compared with manual pouring of alcohol on the inner wall of the hopper, the alcohol spraying is more uniform.

[0026] Preferably, as an improvement, the number of scrubbing units is four. This allows for the scrubbing of a hopper with four side walls.

[0027] To achieve the above objectives, the present invention adopts the following technical solution: a hopper cleaning method, wherein any of the above-described hopper cleaning fixtures is placed into the hopper, alcohol is sprayed onto the inner wall of the hopper, and then the hopper cleaning fixture is moved downward inside the hopper to complete the cleaning of the inner wall of the hopper.

[0028] Preferably, as an improvement, the hopper cleaning fixture is removed from the hopper by lifting it upwards. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the existing hopper structure.

[0030] Figure 2 This is a schematic diagram of the improved hopper structure.

[0031] Figure 3 This is a top view of the hopper cleaning fixture.

[0032] Figure 4 for Figure 3 A magnified view of A in the middle.

[0033] Figure 5 for Figure 3 A magnified view of B in the middle.

[0034] Figure 6 for Figure 3 A magnified view of C. Detailed Implementation

[0035] The following detailed description illustrates the specific implementation method:

[0036] The reference numerals in the accompanying drawings include: hopper 1, roller groove 2, first sliding plate 3, second sliding plate 4, telescopic plate 5, fixing block 6, telescopic rod 7, feed pipe 8, nozzle frame 9, nozzle 10, air cylinder 11, elastic element 12, guide rod 13, second fixing plate 14, first fixing plate 15, wiping cloth 16, air cushion 17, roller 18, wheel frame 19, sealing block 20, piston 21, and second chamber 22.

[0037] Example 1

[0038] The basics are as follows: Figures 2-4The shown: hopper cleaning tool, including at least three scrubbing units, a plurality of scrubbing units are sequentially connected into a polygon; The number of scrubbing units in the embodiment is four, so that the four scrubbing units are sequentially connected to form a quadrilateral, of course, in other embodiments, the number of scrubbing units can also be three, five, etc., the number of scrubbing units is determined according to the number of side walls of the hopper 1.

[0039] The scrubbing unit in the embodiment includes a telescopic plate 5 and a scrubbing cloth 16, the scrubbing cloth 16 is located on the front side of the telescopic plate 5 (the front side refers to the outer side of the quadrilateral, the side opposite to the inner wall of the hopper 1), the two ends of the scrubbing cloth 16 are fixedly connected (such as bonding or fixed by screws) on the two ends of the telescopic plate 5, the scrubbing cloth 16 has elasticity, so the scrubbing cloth 16 can be made of elastic cloth. The telescopic plate 5 in the embodiment can be telescopic, specifically, the telescopic plate 5 includes a first sliding plate 3 and a second sliding plate 4, the first sliding plate 3 is provided with a horizontal plate cavity, the end of the second sliding plate 4 is inserted into the plate cavity and can slide in the plate cavity, the telescopic plate 5 is realized by sliding the second sliding plate 4 in the plate cavity, so that the first sliding plate 3 and the second sliding plate 4 are transversely slidably connected, and the telescopic plate 5 is telescopic.

[0040] The first sliding plate 3 and the second sliding plate 4 are connected with an elastic member 12 which makes the telescopic plate 5 have an elongation trend. Specifically, the back side (the side away from the scrubbing cloth 16) of the first sliding plate 3 is fixedly connected (such as fixed by screws or welded) with a first fixed plate 15, the first fixed plate 15 is located at the end of the first sliding plate 3 close to the second sliding plate 4, the back side of the second sliding plate 4 is fixedly connected (such as fixed by screws) with a second fixed plate 14, the second fixed plate 14 is fixedly connected (such as fixed by screws or welded) with a horizontal guide rod 13, the first fixed plate 15 is provided with a rod hole, the guide rod 13 passes through the rod hole and is transversely slidably connected on the first fixed plate 15, the elastic member 12 is located between the first fixed plate 15 and the second fixed plate 14. The elastic member 12 in the embodiment is a compression spring, the elastic member 12 is sleeved on the guide rod 13, and the two ends of the elastic member 12 are welded on the first fixed plate 15 and the second fixed plate 14 respectively.

[0041] In combination Figure 4As shown, the end of each of the two adjacent telescopic plates 5 in the embodiment is provided with a sliding unit, which comprises a fixed block 6, a wheel frame 19 and a rolling wheel 18 for rolling on the inner wall of the hopper 1. The fixed block 6 is fixedly connected (for example, fixed by screws or welded) on the end of the two adjacent telescopic plates 5. The wheel frame 19 is fixedly connected (for example, fixed by screws or welded) on the two outer sides of the fixed block 6. The rolling wheel 18 is rotatably connected to the wheel frame 19 by a pin shaft. Thus, the number of the fixed blocks 6 in the embodiment is four. One fixed block 6 is shared by the ends of the two adjacent telescopic plates 5. The wheel frame 19 and the rolling wheel 18 are arranged on the two sides of each fixed block 6.

[0042] In combination Figure 2 As shown, the hopper 1 in the embodiment has four sides. The four sides gradually approach each other from top to bottom. Thus, the space of the hopper 1 gradually decreases from top to bottom. The inner wall of the end of each of the four sides is provided with a vertical rolling wheel groove 2.

[0043] The embodiment discloses a hopper cleaning method. During cleaning, alcohol is uniformly sprayed from the top of the hopper 1 to the four inner side walls of the hopper 1. The alcohol flows downward along the inner side walls of the hopper 1. Then, the hopper cleaning tool is put into the hopper 1. The rolling wheel 18 is located in the rolling wheel groove 2. The scrubbing cloth 16 of each of the four scrubbing units is attached to the four inner side walls of the hopper 1.

[0044] Then, the hopper cleaning tool is pushed to move downward in the hopper 1 (when the hopper cleaning tool is pushed to move in the hopper 1, four operators can push the fixed blocks 6 at the four corners of the hopper cleaning tool respectively, so as to push the hopper cleaning tool to move downward in the hopper 1) or the hopper cleaning tool is allowed to move downward under the action of gravity. During the downward movement of the hopper cleaning tool, the rolling wheel 18 rolls downward in the rolling wheel groove 2. The four scrubbing units move downward. The scrubbing cloth 16 scrubs the inner wall of the hopper 1, so as to realize the cleaning of the inner wall of the hopper 1.

[0045] When the hopper cleaning tool moves downward in the hopper 1 in the embodiment, the telescopic plate 5 is automatically shortened under the restriction of the inner wall of the hopper 1, because the side walls of the hopper 1 gradually approach each other. The hopper cleaning tool is automatically reduced in size, so as to adapt to the situation that the side walls of the hopper 1 gradually approach each other and ensure that the hopper cleaning tool can normally move downward. Because the scrubbing cloth 16 is elastic, the scrubbing cloth 16 is adaptively contracted under the action of its own elasticity when the telescopic plate 5 is shortened. After the telescopic plate 5 is shortened, the first fixed plate 15 and the second fixed plate 14 approach each other. The first fixed plate 15 and the second fixed plate 14 extrude the elastic member 12.

[0046] After the hopper cleaning tool is cleaned, the hopper cleaning tool is pulled up (a rope is connected to the hopper cleaning tool). The hopper cleaning tool moves upward in the hopper 1. At this time, the side walls of the hopper 1 gradually move away from each other. Therefore, the extension plates 5 of the scrubbing unit are automatically extended under the action of the elastic members 12. The hopper cleaning tool is automatically enlarged, so as to adapt to the situation that the side walls of the hopper 1 gradually move away from each other from bottom to top. The hopper cleaning tool can be correspondingly enlarged to scrub the inner walls of the hopper 1 when the hopper cleaning tool moves upward. Since the scrubbing cloth 16 is elastic, when the extension plates 5 are lengthened, the scrubbing cloth 16 is also deformed and lengthened. The scrubbing length of the scrubbing cloth 16 is also correspondingly increased, so as to ensure that the side walls of the hopper 1 are scrubbed in all directions.

[0047] In this way, the four inner walls of the hopper 1 are cleaned in all directions, the cleaning effect is good, and the cleaning efficiency is high.

[0048] After cleaning, the hopper cleaning tool can be taken out of the hopper 1 by pulling the hopper cleaning tool upward. The hopper cleaning tool does not stay in the hopper 1 to affect the normal use of the hopper 1.

[0049] Embodiment 2

[0050] In combination Figure 3 As shown in the drawings, the hopper cleaning tool in this embodiment further includes a spraying unit on the basis of embodiment 1. The spraying unit is located in the space surrounded by the plurality of scrubbing units. The spraying unit includes a spray head frame 9 and a spray head 10. The spray head 10 is installed below the spray head frame 9. The spray head frame 9 and each extension plate 5 are connected with an extension rod 7. Specifically, each first sliding plate 3 is fixedly connected (welded or fixed by screws) with the extension rod 7 between the first sliding plate 3 and the spray head frame 9. In this way, when the hopper cleaning tool moves in the hopper 1, the length of the extension rod 7 is changed correspondingly when the length of the extension plate 5 is changed.

[0051] According to this embodiment, when the hopper cleaning tool moves, the end of the feeding pipe 8 away from the spray head 10 is connected with a pump. The pump pumps alcohol into the spray head 10 through the feeding pipe 8. The alcohol is sprayed out of the spray head 10. The spray head 10 sprays the alcohol on the four inner walls of the hopper 1. In this embodiment, when the hopper cleaning tool moves downward, the spray head 10 sprays the alcohol on the inner walls of the hopper 1 below the scrubbing unit. Then, the scrubbing cloth 16 of the hopper cleaning unit moves downward to scrub the inner walls of the hopper 1. In this way, the alcohol does not need to be poured on the inner walls of the hopper 1 manually. The operation is simple and convenient. The alcohol is automatically sprayed out of the spray head 10. The alcohol is more uniformly distributed on the inner walls of the hopper 1.

[0052] Embodiment 3

[0053] In combination with Figure 3 , Figure 5 and Figure 6 , the embodiment is further improved based on the embodiment 1. In the embodiment, a horizontal air cylinder 11 is fixedly connected (for example, welded or fixed by screws) on the first sliding plate 3. The end of the air cylinder 11 is provided with a rod hole, and the guide rod 13 passes through the rod hole. A rubber sealing block 20 is arranged between the rod hole and the guide rod 13. The sealing block 20 is clamped in or bonded in the rod hole, thereby sealing the rod hole. In this way, the guide rod 13 is transversely and sealingly slidably connected in the air cylinder 11. The part of the guide rod 13 located in the air cylinder 11 is fixedly connected (by screws) with a piston 21, and the piston 21 is transversely slidably connected in the air cylinder 11.

[0054] In combination with Figure 6 , the air cushion 17 is arranged between the scrubbing cloth 16 and the telescopic plate 5. The air cushion 17 is made of elastic rubber, and is provided with an air cavity. The air cushion 17 is bonded to the back of the scrubbing cloth 16. In the embodiment, the thickness of the air cushion 17 changes according to the amount of gas filled. The sum of the thickness of the air cushion 17 and the thickness of the scrubbing cloth 16 is within the range of 5mm-10mm. Figure 5 In combination with , the piston 21 divides the air cylinder 11 into a first chamber and a second chamber 22. The second chamber 22 is close to the second fixed plate 14 and is in communication with the air cushion 17, for example, connected by an air pipe. The first chamber on the other side of the piston 21 is in communication with the outside, for example, provided with an air hole on the outer wall of the air cylinder 11, so that the first chamber can be in communication with the outside.

[0055] In the embodiment 1, since the scrubbing cloth 16 is elastic, when the telescopic plate 5 is shortened, the scrubbing cloth 16 will shrink together under the action of the elastic force, so that the scrubbing cloth 16 will gather together and become thick. In this way, the scrubbing cloth 16 can fully contact with the inner wall of the hopper 1. However, after the scrubbing cloth 16 becomes thick, the friction between the scrubbing cloth 16 and the hopper 1 will increase, thereby affecting the normal movement of the hopper cleaning tool in the hopper 1. When the telescopic plate 5 is elongated, the scrubbing cloth 16 will be elongated. At this time, the scrubbing cloth 16 will expand in the length direction and will not gather in the thickness direction. The scrubbing cloth 16 will become relatively thin, and the close degree of the scrubbing cloth 16 to the inner wall of the hopper 1 will become smaller after the scrubbing cloth 16 becomes thin, thereby affecting the cleaning effect of the scrubbing cloth 16 on the inner wall of the hopper 1.

[0056] When the telescopic plate 5 is gradually shortened, the second sliding plate 4 drives the guide rod 13 to move, the guide rod 13 drives the piston 21 to move reversely in the air cylinder 11, so that the second chamber 22 is enlarged, a negative pressure is generated in the second chamber 22, the gas in the air cushion 17 is gradually sucked into the second chamber 22, the gas in the air cushion 17 is reduced, the thickness of the air cushion 17 is reduced, the air cushion 17 can compensate the shortage caused by the thickening of the scrubbing cloth 16 after the length direction is contracted, the air cushion 17 can accommodate the thickened scrubbing cloth 16 after the thickness is reduced, so that the scrubbing cloth 16 is not too close to the hopper 1 after the thickness is increased, the normal movement of the hopper cleaning tool is not affected, and the normal and smooth movement of the hopper cleaning tool is ensured.

[0057] When the telescopic plate 5 is gradually shortened, the second sliding plate 4 drives the guide rod 13 to move, the guide rod 13 drives the piston 21 to move reversely in the air cylinder 11, so that the second chamber 22 is enlarged, a negative pressure is generated in the second chamber 22, the gas in the air cushion 17 is gradually sucked into the second chamber 22, the gas in the air cushion 17 is reduced, the thickness of the air cushion 17 is reduced, the air cushion 17 can compensate the shortage caused by the thickening of the scrubbing cloth 16 after the length direction is contracted, the air cushion 17 can accommodate the thickened scrubbing cloth 16 after the thickness is reduced, so that the scrubbing cloth 16 is not too close to the hopper 1 after the thickness is increased, the normal movement of the hopper cleaning tool is not affected, and the normal and smooth movement of the hopper cleaning tool is ensured.

[0058] Specifically, in the embodiment, it is assumed that the thickness of the scrubbing cloth 16 is 5mm and the thickness of the air cushion 17 is 5mm when the telescopic plate 5 is in the longest state, when the telescopic plate 5 is shortened, the thickness of the scrubbing cloth 16 will gradually increase, and the thickness of the air cushion 17 will gradually decrease, so that the thickness of the scrubbing cloth 16 is increased by 1mm and the thickness of the air cushion 17 is reduced by 1mm, so that the sum of the thicknesses of the scrubbing cloth 16 and the air cushion 17 is 10mm. Conversely, when the telescopic plate 5 is lengthened from the shorter state, the thickness of the scrubbing cloth 16 will gradually decrease, and the thickness of the air cushion 17 will gradually increase, so that the thickness of the scrubbing cloth 16 is reduced by 1mm and the thickness of the air cushion 17 is increased by 1mm, so that the sum of the thicknesses of the scrubbing cloth 16 and the air cushion 17 is 10mm.

[0059] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicability of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A hopper cleaning tool characterized by: The plurality of scrubbing units are connected in sequence to form a polygon. The scrubbing unit comprises a telescopic plate and a scrubbing cloth, the scrubbing cloth is located on the front of the telescopic plate, and the two ends of the scrubbing cloth are fixedly connected to the two ends of the telescopic plate, and the scrubbing cloth has elasticity. The telescopic plate comprises a first sliding plate and a second sliding plate, and the first sliding plate and the second sliding plate are transversely slidably connected; an elastic member is connected between the first sliding plate and the second sliding plate to make the telescopic plate have an elongation trend. A first fixed plate is fixedly connected to the first sliding plate, a second fixed plate is fixedly connected to the second sliding plate, a guide rod is fixedly connected to the second fixed plate, the guide rod is transversely slidably connected to the first fixed plate, and the elastic member is located between the first fixed plate and the second fixed plate. A transverse air cylinder is fixedly connected to the first sliding plate, the guide rod is transversely and sealingly slidably connected in the air cylinder, a piston is fixedly connected to the part of the guide rod located in the air cylinder, and the piston is transversely slidably connected in the air cylinder. An air cushion is arranged between the scrubbing cloth and the telescopic plate, the piston divides the air cylinder into a first chamber and a second chamber; the second chamber is close to the second fixed plate and communicates with the air cushion; and the first chamber communicates with the outside.

2. The hopper cleaning tool of claim 1, wherein: The elastic member is a compression spring, and the elastic member is sleeved on the guide rod.

3. The hopper cleaning tool of claim 1, wherein: The end of the telescopic plate is provided with a sliding unit, the sliding unit comprises a fixed block, a wheel frame and a roller for rolling on the inner wall of the hopper, the fixed block is fixedly connected to the end of the telescopic plate, the wheel frame is fixedly connected to the fixed block, and the roller is rotatably connected to the wheel frame.

4. The hopper cleaning tool of claim 3, wherein: The ends of the two adjacent telescopic plates share one fixed block.

5. The hopper cleaning tool of claim 1, wherein: The spraying unit is arranged in the space surrounded by the plurality of scrubbing units; the spraying unit comprises a spray head frame and a spray head, the spray head is arranged below the spray head frame, and a telescopic rod is connected between the spray head frame and each telescopic plate.

6. The hopper cleaning tool of any one of claims 1-5, wherein: The number of the scrubbing units is four.

7. A method of cleaning a hopper, characterized by: The hopper cleaning tool is put into the hopper, alcohol is sprayed on the inner wall of the hopper, and then the hopper cleaning tool is moved downward in the hopper, so that the inner wall of the hopper is scrubbed.

8. The hopper cleaning method according to claim 7, characterized by: The hopper cleaning tool is pulled upward to take it out of the hopper.

Images