Circulating water filtration system cleaning device

Abstract

The application belongs to the technical field of circulating water filtering system cleaning, and particularly relates to a circulating water filtering system cleaning device. The circulating water filtering system cleaning device comprises an operating rod, a rake claw and a locking mechanism. The rake claw comprises a connecting part and a plurality of rake teeth. The plurality of rake teeth are connected to the connecting part at intervals along a first direction. The connecting part is rotationally connected to one end of the operating rod, so that the rake claw can have an unfolded state or a folded state relative to the operating rod. The rotation axis of the connecting part is parallel to the first direction. The locking mechanism is connected to the operating rod. The locking mechanism is used for locking the rake claw plate in the unfolded state and the folded state, so that the cleaning risk can be reduced and the safety of cleaning can be improved.

Description

Technical Field

[0001] This application belongs to the field of circulating water filtration system cleaning technology, and particularly relates to a circulating water filtration system cleaning device. Background Technology

[0002] During the maintenance of the circulating water filtration system (CFI) in a nuclear power plant overhaul pump station, a large amount of shellfish debris is frequently found accumulating in the culvert between the fine screen and the sluice gate, affecting the reliability of the cooling source for the circulating water filtration system. Therefore, it is necessary to clean the shellfish debris from the culvert. However, during the cleaning process, the limited travel of the scraper's bucket prevents it from reaching the bottom of the culvert between the fine screen and the sluice gate. Therefore, the scraper's bucket cannot be used directly for cleaning. Instead, the scraper's bucket is removed, and a hoisting rope is used to lower a cage carrying cleaning personnel between the fine screen and the sluice gate for debris removal. However, carrying personnel in a hoisting cage is a high-risk operation, which poses a significant safety risk and is detrimental to the cleaning work.

[0003] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art. Utility Model Content

[0004] The purpose of this application is to provide a cleaning device for a circulating water filtration system, which can improve the safety of cleaning the circulating water filtration system.

[0005] The technical solution adopted in this application embodiment is: a cleaning device for a circulating water filtration system, including an operating rod, a rake claw, and a locking mechanism. The rake claw includes a connecting part and multiple rake teeth, which are spaced apart and connected to the connecting part along a first direction. The connecting part is rotatably connected to one end of the operating rod so that the rake claw can be in an unfolded state or a folded state relative to the operating rod. The rotation axis of the connecting part is parallel to the first direction. The locking mechanism is connected to the operating rod and is used to lock the rake claw plate in the unfolded state and the folded state.

[0006] Optionally, the connecting part is connected to a first rotating member; one end of the operating lever is connected to a second rotating member, and the first rotating member and the second rotating member are rotatably connected; the first rotating member has a first limiting structure and a second limiting structure, which are distributed around the rotation axis of the connecting part, so that the first limiting structure can rotate to abut against the locking mechanism, thereby locking the rake claw in a folded state; the second limiting structure can rotate to abut against the locking mechanism, thereby locking the rake claw plate in an unfolded state.

[0007] Optionally, the locking mechanism includes a slider, which is slidably mounted on the second rotating member and is capable of sliding along the axis of the operating lever; the first rotating member includes a first rotating part and a protrusion, the first rotating part being connected to the connecting part; the protrusion protrudes from the outer peripheral surface of the first rotating part, and the side of the first rotating part facing away from the protrusion forms a first limiting structure and is used to abut against the slider; the protrusion also forms a second limiting structure and is used to abut against the slider.

[0008] Optionally, the locking mechanism includes an elastic element disposed between the slider and the second rotating element, and the elastic element is used to push the first rotating part to abut against the protrusion or the first rotating part.

[0009] Optionally, the second rotating member is provided with a groove extending along the axial direction of the operating lever, the slider is slidably installed in the groove, and the elastic member is provided in the groove and located between the slider and the operating lever.

[0010] Optionally, the second rotating member has a blocking portion located inside the end of the slide near the first rotating member, and the slider has a protrusion. The blocking portion is located between the protrusion and the first rotating member, and the blocking portion is used to abut against the protrusion.

[0011] Optionally, the circulating water filtration system cleaning device further includes a blocking block, which is mounted on the second rotating member and blocks at least a portion of the groove opening.

[0012] Optionally, the locking mechanism further includes a movable rod extending axially along the operating rod. The operating rod is provided with a guide member, which has a guide hole. One end of the movable rod is fixedly connected to the slider, and the other end of the movable rod slides through the guide hole.

[0013] Optionally, the circulating water filtration system cleaning device also includes a rotating shaft, a first rotating component having a first rotating hole, a second rotating component having a second rotating hole, and the rotating shaft passing through the first rotating hole and the second rotating hole.

[0014] Optionally, the operating lever includes multiple splicing rods, which are sequentially spliced ​​along the axial direction of the operating lever.

[0015] The circulating water filtration system cleaning device provided in this application embodiment has at least one of the following technical effects: When using the circulating water filtration system cleaning device, the operator rotates the rake claw to a folded state relative to the operating lever, and the locking mechanism locks the rake claw and the operating lever. Then, the rake claw is inserted through the fine screen and between the fine screen and the sluice gate. Next, the rake claw is rotated in the opposite direction, so that it is in an unfolded state relative to the operating lever. The locking mechanism then locks the rake claw and the operating lever again. The rake claw's teeth then rak the debris towards the fine screen, thereby achieving the cleaning of the debris. During this process, workers can stand on the side of the fine screen facing away from the sluice gate to clean up the debris, that is, workers stand on the drum side of the fine screen to clean up the debris. Workers can also climb down the ladder to the drum side of the fine screen and work on the drum side of the fine screen without having to enter the culvert between the fine screen and the sluice gate to clean up the debris, avoiding the high-risk operation of carrying people in the hoist cage and reducing the risk of operation. In addition, the cleaned debris can also be directly transported out by the ladder, reducing the risk of debris falling, and there is no need to dismantle and reinstall the rake bucket of the sludge cleaning machine, improving the dredging efficiency and saving manpower and time.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a cleaning device for a circulating water filtration system provided in some embodiments of this application.

[0019] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0020] Figure 3 for Figure 1 The diagram shows the structure of the cleaning device for the circulating water filtration system.

[0021] Figure 4 For along Figure 3 A partial sectional view of the BB line.

[0022] Figure 5 for Figure 4A magnified view of a section at point C.

[0023] Figure 6 for Figure 1 A partial exploded view of the cleaning device for the circulating water filtration system shown.

[0024] Figure 7 for Figure 6 The diagram shows the structure of the first rotating component.

[0025] Figure 8 for Figure 6 The diagram shows the structure of the slider.

[0026] The following are the labeling elements in the figure:

[0027] 100. Cleaning device for circulating water filtration system; 110. Operating lever; 111. Splicing rod; 120. Rake claw; 121. Connecting part; 122. Rake teeth; 130. Locking mechanism; 131. Sliding block; 1311. Protrusion; 1312. Receiving hole; 132. Elastic element; 133. Moving rod; 134. Handle rod; 140. First rotating element; 1401. First rotating hole; 1402. First limiting structure; 140 3. Second limiting structure; 141. First rotating part; 1411. First rotating sub-part; 142. Protrusion; 143. First fixing part; 150. Second rotating member; 1501. Slide groove; 1502. Second rotating hole; 151. Blocking part; 152. Second rotating part; 1521. Second rotating sub-part; 153. Second fixing part; 160. Blocking block; 170. Rotating shaft; 180. Guide member; 181. Guide hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include at least one of that feature.

[0030] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this application, it should be understood that the terms "inner", "outer", "side", "upper", "bottom", "front", "rear", etc., indicating the orientation or positional relationship are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] In the description of this application, it should be noted that the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0035] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0036] The dredging method for the bottom culvert of the circulating water filtration (CFI) system in the overhaul pump station of a nuclear power plant requires dismantling the scraper bucket and using a hoisting cage to lower personnel into the culvert to clean marine debris. This hoisting operation is classified as a high-risk operation (Level 1). Furthermore, while transporting garbage bags, workers at the bottom of the culvert are at risk of accidentally entering the impact radius of falling debris. The high risk of falling debris further exacerbates the problem. Dismantling and reinstalling the scraper bucket adds extra maintenance work, wastes manpower, and hinders cleaning efficiency.

[0037] Based on this, this application provides a cleaning device for a circulating water filtration system. The rake claws can rotate relative to the operating rod, causing the rake teeth to fold relative to the operating rod and lock in place by a locking mechanism. The folded rake claws can pass through the fine screen and extend between the fine screen and the sluice gate. Then, the rake teeth are rotated in the opposite direction relative to the operating rod, causing the rake claws to unfold relative to the operating rod and lock in place by the locking mechanism. Finally, the rake teeth are used to rake the debris to the fine screen, thus cleaning the debris. During this process, workers can descend from the ladder to the drum screen side of the fine screen and work there, without needing to enter the culvert between the fine screen and the sluice gate to clean the debris. This avoids high-risk operations involving personnel in the hoist cage, reducing operational risks. Furthermore, the cleaned debris can be directly transported out via the ladder, reducing the risk of debris falling. It also eliminates the need to dismantle and reassemble the rake bucket of the cleaning machine, improving dredging efficiency and saving labor time.

[0038] The following combination Figures 1-8 The circulating water filtration system cleaning device 100 of the present application embodiment will be described.

[0039] like Figures 1-2 As shown, in some embodiments, a circulating water filtration system cleaning device 100 is provided, including an operating lever 110, a rake claw 120, and a locking mechanism 130: the rake claw 120 includes a connecting portion 121 and a plurality of rake teeth 122, the plurality of rake teeth 122 being spaced apart from the connecting portion 121 along a first direction M, the connecting portion 121 being rotatably connected to one end of the operating lever 110, so that the rake claw 120 can be in an unfolded state or a folded state relative to the operating lever 110, and the rotation axis N of the connecting portion 121 is parallel to the first direction M; the locking mechanism 130 is connected to the operating lever 110, and the locking mechanism 130 is used to lock the rake claw 120 in the unfolded state and the folded state.

[0040] The operating lever 110 can refer to a lever for personnel to hold. The operating lever 110 can be a telescopic lever, a folding lever, or other components. The material of the operating lever 110 can be metal or plastic. For example, the operating lever 110 is made of high-strength carbon fiber to increase the structural strength of the operating lever 110 and reduce its mass. This makes the cleaning operation of the circulating water filtration system cleaning device 100 more time-saving and labor-saving, and also helps to extend the service life of the circulating water filtration system cleaning device 100.

[0041] The rake 120 can refer to a component capable of rake garbage. The rake 120 includes a connecting part 121 and a plurality of rake teeth 122. The connecting part 121 is used to connect the plurality of rake teeth 122 together. The plurality of rake teeth 122 are connected to one side of the connecting part 121 and are spaced apart along a first direction M. A gap is formed between two adjacent rake teeth 122, so that the rake teeth 122 can be inserted into the garbage and push the garbage to move.

[0042] The shape of the connecting part 121 can be various, such as plate-shaped, rod-shaped, etc.

[0043] The shape of the rake teeth 122 can be various, such as rod-shaped, V-shaped, etc.

[0044] The connecting part 121 and the rake teeth 122 can be an integrated structure, or they can be molded separately and then assembled together.

[0045] The connecting part 121 is rotatably connected to one end of the operating rod 110. The connecting part 121 and the operating rod 110 can be hinged by means of hinges, etc., so that the connecting part 121 can rotate relative to the operating rod 110 to realize the folding or unfolding of the rake claw 120 relative to the operating rod 110. The rotation axis N of the connecting part 121 is parallel to the first direction M, so that the rake teeth 122 of the rake claw 120 rotate toward the operating rod 110, which can realize the folding of the rake claw 120 relative to the operating rod 110. When the rake claw 120 is unfolded, the rake teeth 122 can rotate away from the operating rod 110, which can realize the unfolding of the rake claw 120 relative to the operating rod 110.

[0046] In some examples, when the rake claw 120 is rotated to be parallel to or against the operating lever 110, the rake claw 120 is in a folded state relative to the operating lever 110; when the rake claw 120 is rotated to be perpendicular to or nearly perpendicular to the operating lever 110, the rake claw 120 is in an unfolded state relative to the operating lever 110.

[0047] In some examples, the operating lever 110 is connected to one side of the connecting part 121 and located in the middle of the connecting part 121, and a plurality of rake teeth 122 are connected to the other side of the connecting part 121 and evenly distributed on opposite sides of the operating lever 110 to facilitate the rake claws 120 to rake and clean up the garbage.

[0048] The locking mechanism 130 is used to lock the rake claw 120 and the operating rod 110 relative to each other. The locking mechanism 130 can lock the rake claw 120 and the operating rod 110 in the folded state, allowing the rake claw 120 to quickly pass through the fine mesh. The locking mechanism 130 can also lock the rake claw 120 and the operating rod 110 in the unfolded state, fixing them relatively in place for better debris removal. The locking mechanism 130 can be a protrusion and groove mating structure, or a pin and hole mating structure, etc.

[0049] In this embodiment of the circulating water filtration system cleaning device 100, during use, the operator rotates the rake claw 120 to a folded state relative to the operating lever 110, and the locking mechanism 130 locks the rake claw 120 and the operating lever 110. Then, the rake claw 120 is inserted through the fine screen and between the fine screen and the sluice gate. Next, the rake claw 120 is rotated in the opposite direction, so that the rake claw 120 is in an unfolded state relative to the operating lever 110, and the locking mechanism 130 locks the rake claw 120 and the operating lever 110 again. The rake teeth 122 of the rake claw 120 then rake the debris towards the fine screen, thereby removing the debris. The cleaning process involves workers standing on the side of the fine screen facing away from the sluice gate to clean up debris, specifically on the drum side of the fine screen. Workers can descend to the drum side of the fine screen via a ladder and work there without having to enter the culvert between the fine screen and the sluice gate to clean up debris. This avoids the high-risk operation of carrying personnel in the hoist cage and reduces operational risks. Furthermore, the cleaned debris can be directly transported out via the ladder, reducing the risk of debris falling during hoisting. It also eliminates the need to dismantle and reinstall the scraper bucket of the cleaning machine, improving dredging efficiency and saving labor time.

[0050] In some embodiments, the connecting portion 121 is connected to a first rotating member 140; one end of the operating lever 110 is connected to a second rotating member 150, and the first rotating member 140 and the second rotating member 150 are rotatably connected; the first rotating member 140 has a first limiting structure 1402 and a second limiting structure 1403, the first limiting structure 1402 and the second limiting structure 1403 are distributed around the rotation axis N of the connecting portion 121, so that the first limiting structure 1402 can rotate to abut against the locking mechanism 130, thereby locking the rake claw 120 in a folded state; the second limiting structure 1403 can rotate to abut against the locking mechanism 130, thereby locking the rake claw 120 in an unfolded state.

[0051] The first rotating member 140 may refer to a component installed on the connecting part 121 and rotatably connected to the operating lever 110, and the second rotating member 150 may refer to a component installed on the operating lever 110 and rotatably connected to the first rotating member 140.

[0052] The first rotating member 140 has a first limiting structure 1402 and a second limiting structure 1403. The first limiting structure 1402 and the second limiting structure 1403 are distributed around the rotation axis N of the connecting part 121. The first limiting structure 1402 and the second limiting structure 1403 are distributed along the circumference of the first rotating member 140. During the rotation of the first rotating member 140 relative to the second rotating member 150, the first limiting structure 1402 and the second limiting structure 1403 respectively abut against the locking mechanism 130, thereby locking the operating lever 110 and the rake claw 120.

[0053] The first limiting structure 1402 abuts against the locking mechanism 130, locking the rake claw 120 and the operating lever 110 in a folded state; the second limiting structure 1403 abuts against the locking mechanism 130, locking the rake claw 120 and the operating lever 110 in an unfolded state.

[0054] The first limiting structure 1402 and the second limiting structure 1403 can be structures such as limiting surfaces and limiting holes.

[0055] By adopting the technical solution of this embodiment, by rotating the first rotating member 140, the first limiting structure 1402 and the second limiting structure 1403 respectively abut against the locking mechanism 130, thereby locking the rake claw 120 and the operating rod 110 in a folded or unfolded state. The locking operation is simple and convenient to use, and the structure is simple and easy to process and manufacture.

[0056] In some embodiments, the locking mechanism 130 includes a slider 131, which is slidably mounted on the second rotating member 150 and is capable of sliding along the axis of the operating lever 110; the first rotating member 140 includes a first rotating portion 141 and a protrusion 142, the first rotating portion 141 being connected to the connecting portion 121; the protrusion 142 protrudes from the outer peripheral surface of the first rotating portion 141, and the side of the first rotating portion 141 facing away from the protrusion 142 forms a first limiting structure 1402 and is used to abut against the slider 131; the protrusion 142 forms a second limiting structure 1403 and is used to abut against the slider 131.

[0057] The slider 131 can refer to a component that can slide relative to the second rotating member 150. The slider 131 moves along the axial direction of the operating rod 110, and the direction of movement of the slider 131 is consistent with the axial direction of the operating rod 110. The operator can operate the slider 131 to move, and the size of the second rotating member 150 along the axial direction perpendicular to the operating rod 110 can be reduced, which is beneficial to improving the structural compactness.

[0058] The first rotating member 140 includes a first rotating part 141 and a protrusion 142. The first rotating part 141 is used for rotatable connection with the second rotating member 150. The protrusion 142 may refer to a protruding structure that protrudes from the outer peripheral surface of the first rotating part 141. The outer peripheral surface of the first rotating part 141 may refer to the surface surrounding the rotation axis N of the connecting part 121.

[0059] By adopting the technical solution of this embodiment, during the rotation of the first rotating part 141 relative to the second rotating member 150, when the protrusion 142 rotates to the slider 131, the slider 131 can abut against the protrusion 142, thereby restricting the continued rotation of the rake claw 120 relative to the operating rod 110, thus locking the rake claw 120 and the operating rod in the unfolded state; when the first rotating part 141 rotates to the slider 131 on the other side away from the protrusion 142, the slider 131 can abut against the side of the first rotating part 141 away from the protrusion 142, thereby restricting the continued rotation of the rake claw 120 relative to the operating rod 110, thus locking the rake claw 120 and the operating rod in the folded state; and the slider 131 can slide relative to the second rotating member 150 to abut or separate from the protrusion 142 and the first rotating part 141, thereby realizing locking and unlocking; this solution, which directly utilizes the abutment of the slider 131, the first rotating part 141, and the protrusion 142, has a simple structure and is easy to operate.

[0060] In some embodiments, the locking mechanism 130 includes an elastic element 132, which is disposed between the slider 131 and the second rotating element 150. The elastic element 132 is used to push the first rotating part 141 to abut against the protrusion 142 or the first rotating part 141.

[0061] The elastic element 132 can refer to a component with a certain degree of elasticity. The elastic element 132 can be, but is not limited to, a spring or an elastic block.

[0062] The elastic element 132 is installed between the slider 131 and the second rotating element 150 to fix the elastic element 132; for example, the elastic element 132 is arranged parallel to the axial direction of the operating rod 110, one end of the elastic element 132 abuts against the slider 131, and the other end abuts against the second rotating element 150; or, one end of the elastic element 132 is fixedly connected to the slider 131, and the other end is fixedly connected to the second rotating element 150.

[0063] During the process of pushing the slider 131 to separate from the protrusion 142 and the first rotating part 141, the elastic element 132 is compressed. After the external force is released, the slider 131 can be pushed to move until it abuts against the protrusion 142 and the first rotating part 141 under the elastic action of the elastic element 132, thereby realizing the locking and unlocking of the rake claw 120.

[0064] By adopting the technical solution of this embodiment, the elastic element 132, under its own elastic action, can make the slider 131 closely abut against the protrusion 142 and the first rotating part 141, thereby improving the stability of the locking of the rake claw 120 and cleaning up garbage more stably; in addition, the elastic element 132 can automatically drive the slider 131 to abut against the protrusion 142 and the first rotating part 141, making the locking operation of the rake claw 120 simpler.

[0065] In some embodiments, the second rotating member 150 is provided with a groove 1501 extending axially along the operating rod 110, the slider 131 is slidably mounted in the groove 1501, and the elastic member 132 is provided in the groove 1501 and located between the slider 131 and the operating rod 110.

[0066] The groove 1501 can refer to the groove structure of the second rotating member 150. The slider 131 can be slidably installed in the groove 1501. The slider 131 can slide in the groove 1501, which helps to improve the stability of the slider 131 sliding.

[0067] The elastic element 132 is located inside the slide groove 1501. The elastic element 132 is located between the slider 131 and the side wall of the slide groove 1501 away from the first rotating part 141. The two ends of the elastic element 132 abut against the slider 131 and the side wall of the slide groove 1501 away from the first rotating part 141, respectively, so that the elastic element 132 can push the slider 131 toward the protrusion 142 and the first rotating part 141.

[0068] In some examples, the slider 131 is provided with a receiving hole 1312, and one end of the elastic member 132 is received in the receiving hole 1312. The receiving hole 1312 limits the elastic member 132, reducing the risk of the elastic member 132 dislodging from the slide groove 1501, which helps to improve the reliability of the locking mechanism 130.

[0069] By adopting the technical solution of this embodiment, the slide groove 1501 can provide sliding space for the slider 131 and guide the slider 131 to move, and the slider 131 moves with good stability. In addition, the slide groove 1501 can also provide a space for the elastic member 132 to accommodate, which is beneficial to improving the structural compactness. The slider 131 is slidably connected to the second rotating member 150 through the slide groove 1501, which has a simple structure and is easy to process and manufacture.

[0070] In some embodiments, the second rotating member 150 has a blocking portion 151 located in the end of the slide groove 1501 near the first rotating portion 141, the slider 131 has a protrusion 1311, the blocking portion 151 is located between the protrusion 1311 and the first rotating portion 141, and the blocking portion 151 is used to abut against the protrusion 1311.

[0071] The bottom surface of the chute 1501 near the end of the first rotating part 141 is provided with a protruding structure, which is the blocking part 151.

[0072] The slider 131 has a protruding structure on the side facing the bottom of the groove 1501. This protruding structure is called the protrusion 1311. The protrusion 1311 is located in the groove 1501 and on the side of the blocking part 151 facing away from the first rotating part 141. In this way, when the slider 131 moves toward the first rotating part 141, the protrusion 1311 can abut against the blocking part 151, thereby reducing the risk of the slider 131 falling out of the groove 1501.

[0073] By adopting the technical solution of this embodiment, the protrusion 1311 and the blocking part 151 abut against each other, which can reduce the risk of the slider 131 falling out of the groove 1501 and improve the reliability of the locking mechanism 130.

[0074] In some embodiments, the circulating water filtration system cleaning device 100 further includes a blocking block 160, which is mounted on the second rotating member 150 and blocks at least a portion of the groove opening of the slide 1501.

[0075] The slide 1501 is provided on the second rotating member 150. In the folded state, the slide 1501 forms a groove opening on the surface of the second rotating member 150 facing away from the rake tooth 122. The groove opening is arranged opposite to the bottom surface of the slide 1501. The blocking block 160 is installed on the side of the second rotating member 150 where the groove opening is provided. A part of the blocking block 160 can protrude from the side surface of the slide 1501 to block the part of the groove opening and prevent the slider 131 from coming out of the groove opening.

[0076] The blocking block 160 can be fixed to the first rotating part 140 by fasteners such as bolts and screws, or the blocking block 160 can be fixed to the blocking block 160 by means of snap-fit, adhesive or other methods.

[0077] By adopting the technical solution of this embodiment, the blocking block 160 can block at least a portion of the groove opening of the slide groove 1501, and the blocking block 160 can prevent the slider 131 from dislodging from the groove opening of the slide groove 1501, thereby improving the reliability of the locking mechanism 130.

[0078] In some embodiments, the locking mechanism 130 further includes a movable rod 133 extending axially along the operating rod 110. The operating rod 110 is provided with a guide 180, and the guide 180 is provided with a guide hole 181. One end of the movable rod 133 is fixedly connected to the slider 131, and the other end of the movable rod 133 is slidably inserted into the guide hole 181.

[0079] The movable rod 133 refers to the part used to move the slider 131. One end of the movable rod 133 is connected to the slider 131, and the other end of the movable rod 133 passes through the guide hole 181 of the guide member 180. The guide member 180 can be sleeved and fixed to the outside of the operating rod 110, or it can be fixed to the operating rod 110 by welding, integral forming, or other methods. The other end of the movable rod 133 facing away from the slider 131 is provided with a handle rod 134. The handle rod 134 is set perpendicular to the movable rod 133 for easy gripping by the operator to move the movable rod 133.

[0080] By adopting the technical solution of this embodiment, the movable rod 133 can move within the guide hole 181, thereby driving the slider 131 to move, thus realizing the locking and unlocking of the slider 131 and the first rotating member 140; the guide member 180 can also support the movable rod 133, making the installation of the movable rod 133 more reliable. The guide hole 181 of the guide member 180 can also guide the movement of the movable rod 133, making the movement of the slider 131 driven by the movable rod 133 more stable and reliable, improving the reliability of the circulating water filtration system cleaning device 100. In addition, the cooperation between the movable rod 133 and the guide member 180 allows the operator to directly operate the movable rod 133 to drive the slider 131 to move at the operating rod 110, allowing the operator to flexibly operate the unfolding and folding of the rake claw 120 on the drum screen side of the fine screen.

[0081] In some embodiments, the circulating water filtration system cleaning device 100 further includes a rotating shaft 170, a first rotating member 140 having a first rotating hole 1401, a second rotating member 150 having a second rotating hole 1502, and the rotating shaft 170 passing through the first rotating hole 1401 and the second rotating hole 1502.

[0082] The rotating shaft 170 passes through the first rotating hole 1401 and the second rotating hole 1502 in sequence, thereby realizing the rotational connection between the first rotating component 140 and the second rotating component 150. The rotating connection structure of the rotating shaft 170 is simple in structure and easy to process and manufacture. In addition, the rotating connection method of the rotating shaft 170 has good rotational stability, which is conducive to improving the reliability of the circulating water filtration system cleaning device 100.

[0083] In some examples, the first rotating member 140 also includes a first fixing part 143, which is connected to the connecting part 121 on the side opposite to the protrusion 142. The first fixing part 143 can be connected to the connecting part 121 of the rake claw 120 by fasteners such as bolts and screws. The second rotating member 150 includes a second fixing part 153 and a second rotating part 152. The second fixing part 153 is connected to one side of the second rotating part 152. The second fixing part 153 can be connected to the operating lever 110 by fasteners such as bolts and screws, sleeve, snap-fit, etc.

[0084] In some examples, the first rotating part 141 includes a plurality of first rotating sub-parts 1411, which are spaced apart along a first direction M. The second rotating part 152 includes a plurality of second rotating sub-parts 1521, which are spaced apart along a first direction M. The plurality of first rotating sub-parts 1411 and the plurality of second rotating sub-parts 1521 are alternately distributed along the first direction M. The rotating shaft 170 passes through the plurality of first rotating sub-parts 1411 and the plurality of second rotating sub-parts 1521 along the first direction M, so that the first rotating member 140 and the second rotating member 150 form a hinge structure.

[0085] In some examples, a slide 1501 is provided on the second fixed part 153, one end of the slide 1501 is located between two adjacent second rotating parts 1521, the first rotating part 1411 located between the two adjacent second rotating parts 1521 is provided with a protrusion 142, one end of the slider 131 extends out of the slide 1501 to abut against the first rotating part 141 and the protrusion 142, thereby locking the locking mechanism 130.

[0086] In some examples, the blocking block 160 is provided with a clearance groove, which is arranged opposite to the slide 1501. The width of the clearance groove is smaller than the width of the slide 1501, which can prevent the slider 131 from sliding out of the slide 1501. The moving rod 133 is connected to the slider 131 through the clearance groove.

[0087] In some embodiments, the operating lever 110 includes a plurality of splicing rods 111, which are spliced ​​sequentially along the axial direction of the operating lever 110.

[0088] Multiple splicing rods 111 are spliced ​​together in sequence to form an operating rod 110. Adjacent splicing rods 111 can be spliced ​​together by means of threads, snap-fit, etc.

[0089] By adopting the technical solution of this embodiment, multiple splicing rods 111 are spliced ​​together to form an operating rod 110. The operating rod 110 is long, which makes it convenient to clean up a larger area of ​​garbage. After the multiple splicing rods 111 are disassembled into multiple segments, each splicing rod 111 is shorter than the operating rod 110, which makes it convenient to store the circulating water filtration system cleaning device 100.

[0090] In some embodiments, the operating lever 110 is made of carbon fiber, which is lightweight and has high strength.

[0091] In some embodiments, the rake claw 120, the first rotating member 140, and the second rotating member 150 are made of stainless steel, which has the characteristics of stable structure and strong gripping ability.

[0092] In some embodiments, the circulating water filtration system cleaning device 100 can switch between folded and unfolded states by operating the moving rod 133. In the folded state, it can freely pass through the gaps of the fine screen, and in the unfolded state, it can perform dredging operations. Operators can work in the culvert between the fine screen and the sluice gate without entering the culvert, thus optimizing the dredging process and avoiding high-risk operations such as carrying people in a hoist cage. The modular operating rod 110 can meet the requirements of both long-distance and short-distance operations, and clean the culvert debris from all directions. The operating rod 110 is lightweight, saves the operator's physical strength, and improves the dredging efficiency. The operating rod 110 is simple to assemble and convenient for operators to carry and use.

[0093] In some embodiments, the circulating water filtration system cleaning device 100 can improve the sludge removal process and technology at the bottom of the culvert of the circulating water filtration system (CFI) cleaning machine in a nuclear power plant overhaul pump station, avoiding high-risk operations such as personnel carrying in a hoist cage, thus fundamentally improving safety; it solves the sludge removal problem when the cleaning machine has no power supply (e.g., during maintenance shutdown, when the circulating water filtration system in the nuclear power plant overhaul pump station has no power supply, and the bidirectional motor can no longer supply power), and also facilitates the scheduling of maintenance and shutdown maintenance plans for the circulating water filtration system in the nuclear power plant overhaul pump station; it avoids the need to dismantle and restore the scraper bucket of the circulating water filtration system cleaning machine in the nuclear power plant overhaul pump station, and to use the cleaning machine lifting rope to hoist the cage for personnel operations, saving working time.

[0094] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cleaning device for a circulating water filtration system, characterized in that, include: control lever; The rake claw includes a connecting part and a plurality of rake teeth, the plurality of rake teeth being spaced apart from the connecting part along a first direction, the connecting part being rotatably connected to one end of the operating rod, so that the rake claw can be in an unfolded state or a folded state relative to the operating rod, and the rotation axis of the connecting part is parallel to the first direction; A locking mechanism is connected to the operating lever, and the locking mechanism is used to lock the rake claw plate in the unfolded state and the folded state.

2. The cleaning device for a circulating water filtration system according to claim 1, characterized in that: The connecting part is connected to a first rotating component; one end of the operating lever is connected to a second rotating component, and the first rotating component and the second rotating component are rotatably connected. The first rotating member has a first limiting structure and a second limiting structure, which are distributed around the rotation axis of the connecting part, so that the first limiting structure can rotate to abut against the locking mechanism, thereby locking the rake claw in the folded state; the second limiting structure can rotate to abut against the locking mechanism, thereby locking the rake claw in the unfolded state.

3. The cleaning device for a circulating water filtration system according to claim 2, characterized in that: The locking mechanism includes a slider, which is slidably mounted on the second rotating member and is capable of sliding along the axis of the operating rod. The first rotating member includes a first rotating part and a protruding part. The first rotating part is connected to the connecting part. The protruding part protrudes from the outer peripheral surface of the first rotating part. The side of the first rotating part facing away from the protruding part forms the first limiting structure and is used to abut against the slider. The protruding part forms the second limiting structure and is used to abut against the slider.

4. The cleaning device for a circulating water filtration system according to claim 3, characterized in that: The locking mechanism includes an elastic element disposed between the slider and the second rotating member. The elastic element is used to push the first rotating part to abut against the protrusion or the first rotating part.

5. The cleaning device for a circulating water filtration system according to claim 4, characterized in that: The second rotating member is provided with a groove extending along the axial direction of the operating rod, the slider is slidably installed in the groove, and the elastic member is provided in the groove and located between the slider and the operating rod.

6. The cleaning device for a circulating water filtration system according to claim 5, characterized in that: The second rotating member has a blocking portion located at the end of the groove near the first rotating member. The slider has a protrusion, and the blocking portion is located between the protrusion and the first rotating member. The blocking portion is used to abut against the protrusion.

7. The cleaning device for a circulating water filtration system according to claim 5, characterized in that: The circulating water filtration system cleaning device further includes a blocking block, which is installed on the second rotating member and blocks at least a portion of the groove opening of the chute.

8. The cleaning device for a circulating water filtration system according to claim 3, characterized in that: The locking mechanism further includes a movable rod extending axially along the operating rod. The operating rod is provided with a guide member and a guide hole. One end of the movable rod is fixedly connected to the slider, and the other end of the movable rod slides through the guide hole.

9. The cleaning device for a circulating water filtration system according to any one of claims 2 to 8, characterized in that: The circulating water filtration system cleaning device also includes a rotating shaft. The first rotating component has a first rotating hole, and the second rotating component has a second rotating hole. The rotating shaft passes through the first rotating hole and the second rotating hole.

10. The cleaning device for a circulating water filtration system according to any one of claims 2 to 8, characterized in that: The operating lever includes multiple splicing rods, which are sequentially spliced ​​together along the axial direction of the operating lever.

Images