Automatic cleaning device for gutter inlet floating objects

Abstract

The automatic cleaning device for the gutter inlet floating objects comprises a rain grate which comprises a horizontal grating embedded in a gutter inlet; the storage bin is communicated with the rain grate and used for receiving the floating objects intercepted by the rain grate; the seesaw type structure is installed at the position, lower than the gutter inlet, in the catchment well and comprises a first swing part and a second swing part, the first swing part and the second swing part automatically swing up and down according to the weight of injected rainwater, when no rain exists, the first swing part is located at the first upwarp position and located below the rain grate, and the second swing part is located at the second upwarp position and located below the gutter inlet. The second swing part is located at the second descending position and completely descends to the position below the horizontal grid; when it rains, the first swing part descends from the first upwarp position to the first descending position, the second swing part correspondingly warps from the second descending position to the second upwarp position, and at the position, part of the second swing part can rotate and stretch out to the position above the horizontal grating so as to push the floating objects intercepted by the horizontal grating to move into the storage bin. The device operates automatically, and is convenient and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage treatment, and particularly to an automatic cleaning device for floating debris at a rainwater inlet. Background Art

[0002] Generally, in the field of rainwater collection and treatment, the operation of urban rainwater treatment in various countries mainly reduces the peak flood and waterlogging by transporting runoff rainwater through a drainage pipe network. Among them, by arranging rain gratings, some ground floating debris is blocked from mixing into the pipe network to reduce pipe blockage and relieve the pressure on the sewage treatment plant to receive sewage. However, the sizes of surface debris are various, and it is difficult to isolate them with a single rain grating. In the application of rain gratings, if the gap between the grating bars of the rain grating increases, the drainage capacity is improved, but at the same time, the amount of floating scum entering the pipe increases, and the degree of siltation increases, resulting in a decrease in the drainage capacity of the pipe network system and even the paralysis of the drainage system; if the gap between the grating bars of the rain grating decreases, the floating scum interception capacity is improved, and the amount of floating scum entering the pipe decreases, but the degree of floating scum blocking the grating increases, resulting in a decrease in the flow rate of rainwater entering the pipe network and causing the discharge of runoff rainwater to be blocked, thereby triggering waterlogging.

[0003] Therefore, there is a need in the art for a new automatic cleaning device for floating debris at a rainwater inlet, which can eliminate or at least alleviate all or part of the above-mentioned defects in the prior art. Summary of the Invention

[0004] Aiming at the above technical problems existing in the prior art, the purpose of the present invention is to provide an automatic cleaning device for floating debris at a rainwater inlet, which can be hidden under the rain grating without disturbing ground traffic when there is no rain, and during rainfall, it can automatically push and remove the floating debris covering the rain grating by means of the second swinging part in the seesaw structure, and temporarily collect the intercepted floating scum or floating debris in the storage bin, so that the runoff rainwater can quickly flow into the catch basin through the rain grating, and then be quickly drained away through the pipe network, and finally the floating scum in the storage bin is removed after the rain stops.

[0005] To this end, according to an embodiment of the present invention, there is provided an automatic cleaning device for floating debris at a rainwater inlet, wherein the automatic cleaning device includes:

[0006] A rain grating, which is installed at the rainwater inlet of a catch basin for rainwater collection, and includes a horizontal grating embedded in the rainwater inlet in a manner parallel to the ground. The horizontal grating is used to introduce rainwater into the catch basin and filter out the floating debris carried in the rainwater, thereby intercepting the floating debris;

[0007] A storage bin, which is communicated with the rain grating and is used to receive the floating debris intercepted by the rain grating;

[0008] A seesaw structure is installed in the catch basin. When there is no rain, the seesaw structure is entirely below the rainwater inlet. The seesaw structure includes a first swinging part and a second swinging part. The first swinging part and the second swinging part automatically swing up and down according to the weight of the rainwater injected onto the first swinging part and the second swinging part.

[0009] Among them, when there is no rain, the first swinging part is in the first upward position and is below the grating, and the second swinging part is in the second downward position. In the second downward position, the second swinging part drops entirely below the horizontal grating; when it is raining, the first swinging part drops from the first upward position to the first downward position, and the second swinging part correspondingly tilts up from the second downward position to the second upward position. In the second upward position, a part of the second swinging part can rotate and extend above the horizontal grating to push the floating objects intercepted by the horizontal grating so that they move into the storage bin.

[0010] Furthermore, in some embodiments, the automatic cleaning device for floating objects at the rainwater inlet may further include a limiting space, which can be located below the storage bin for accommodating the first swinging part, and may include a limiting top and a limiting bottom. Among them, in the first upward position, the first swinging part can contact the limiting top, and in the first downward position, the first swinging part can contact the limiting bottom or can be in an intermediate position between the limiting top and the limiting bottom.

[0011] Furthermore, in some embodiments, the seesaw structure may include:

[0012] A swing arm assembly, which is rotatably installed in the catch basin;

[0013] A pulley as the above-mentioned second swinging part, which is rotatably installed at the first end of the swing arm assembly;

[0014] A balance box as the above-mentioned first swinging part, which can be installed at the second end of the swing arm assembly opposite to the first end;

[0015] Among them, the swing arm assembly may include a swing arm part and a swing arm rotating shaft passing through the swing arm part between the first end and the second end. Among them, the swing arm part can be installed on the side wall of the catch basin through the swing arm rotating shaft, and the swing arm part can swing freely around the swing arm rotating shaft. Among them, the swing arm part may include two identical swing arms arranged in parallel and spaced apart, and the swing arm rotating shaft can vertically penetrate the two swing arms.

[0016] Furthermore, in some embodiments, the balance box may include:

[0017] A box body rotating shaft, which can be rotatably installed on the two swing arms at the second end of the swing arm assembly;

[0018] The box body can be fixedly mounted on the box body rotating shaft, and can include first end plates arranged at both ends of the box body and respectively adjacent to the two swing arms, and a box body side wall arranged between the two first end plates, wherein the box body side wall can be provided with a drainage hole.

[0019] Furthermore, in some embodiments, the thumbwheel may include:

[0020] an axle rotatably mounted to the two swing arms at a first end of the swing arm assembly;

[0021] The water wheel body may have a generally cylindrical main body fixed to the outside of the wheel shaft, and the main body may include second end plates arranged at both ends of the cylinder and adjacent to the two swing arms respectively, a plurality of concave buckets alternately arranged along the circumferential direction at the side wall of the cylinder, and a plurality of protrusions extending outward from the wheel shaft;

[0022] The shift bar extends outward from the protruding portion in a direction away from the wheel axle.

[0023] Further, in some embodiments, the protrusion may be L-shaped, and may include a supporting base extending outward from the wheel shaft and a boss portion extending circumferentially from the supporting base, wherein the strip may extend radially outward from the boss portion.

[0024] Preferably, the support base may be provided with a water leakage hole.

[0025] Further, in some embodiments, the rain screen may include:

[0026] The horizontal grille may have at least one first grid extending horizontally and may be installed to correspond to the position of the selector bar, so that when the selector wheel is in the second upward position, the selector bar can freely rotate in the first grid and extend above the horizontal grille;

[0027] A slag inlet, which may be located between the horizontal grid and the receiving bin, so that floating objects enter the receiving bin through the slag inlet;

[0028] A vertical grid, which may be located above the slag inlet, and two vertical side portions of the vertical grid vertically extend downward to a third end portion of the horizontal grid adjacent to the storage bin;

[0029] An inclined grille can extend obliquely downward from a third end of the horizontal grille toward a direction away from the horizontal grille;

[0030] The water filter grid can extend horizontally from the fourth end of the inclined grid away from the horizontal grid to the water collection well in a direction away from the inclined grid, and can include a plurality of gaps.

[0031] Furthermore, in some embodiments, the storage bin may be surrounded by vertical grilles, inclined grilles, water filter grilles, and side walls of the water collection well, and an openable cover may be provided on the top of the storage bin.

[0032] Further, in some embodiments, the limiting space may be defined by a water filter grille and a sump well. The water filter grille may define the limiting top of the limiting space, and the sump well may define the side wall and the limiting bottom of the limiting space. The limiting space is open towards the side of the first swinging part. Among them, the water filter grille may be provided with an upper limiting block for contacting the first swinging part to prevent the first swinging part from moving further upward, and the sump well may be provided with a lower limiting seat for contacting the first swinging part to prevent the first swinging part from moving further downward at the limiting bottom opposite to the water filter grille.

[0033] Further, in some embodiments, the balance box may further include a dredging cable that passes downward through the water discharge hole from the limiting top in the limiting space and extends to the limiting bottom. Among them, during the up-and-down swinging process of the balance box, the dredging cable may slide relative to the water discharge hole to remove the sundries adhering to the balance box.

[0034] The automatic cleaning device for rainwater inlet floating objects provided by the embodiments of the present invention may have the following beneficial effects:

[0035] First of all, the present invention provides a seesaw structure including a first swinging part and a second swinging part. The first swinging part and the second swinging part cooperate with each other to realize that during rainfall, the second swinging part automatically tilts upward and extends above the horizontal grille, effectively pushing the scum or floating objects. And after rainfall or when there is no rain, the second swinging part automatically falls and retracts below the grille, being concealed and not interfering with ground traffic, and keeping the ground clean and level, running automatically, conveniently and efficiently.

[0036] Secondly, the present invention provides a storage bin cooperating with the seesaw structure, which can realize the automatic isolation and collection of the scum of runoff rainwater. During rainfall, the scum or floating objects automatically pushed and removed by the second swinging part can be temporarily collected in the storage bin, so that the runoff rainwater can quickly flow into the sump well through the rain grate with small gaps and be quickly drained away through the pipe network. Then, after rainfall, it is convenient to take out the scum or floating objects from the storage bin and transfer the scum or floating objects to the scum treatment site according to environmental protection requirements.

[0037] Thirdly, the present invention provides a limiting space located below the storage bin for accommodating the first swinging part, so that the seesaw structure has accurate positioning during the up-and-down swinging process and can work stably and reliably for a long time.

[0038] Further, during rainfall, the seesaw structure is hydraulically driven without other external power, saving energy and having low cost.

[0039] Finally, the structure of the present invention is simple, and even there is no need to transmit power between the first swinging part and the second swinging part, so it is reliable in use, has a long service life and is convenient to install. Description of the Drawings

[0040] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0041] Figure 1 Schematically showing a cross-sectional view of an automatic cleaning device for floating debris at a rainwater inlet according to an embodiment of the present invention;

[0042] Figure 2 Schematically showing Figure 1 a perspective view of the rain grate installed at the catch basin in;

[0043] Figure 3 Schematically showing Figure 1 a perspective view of the seesaw-like structure in.

[0044] Description of component labels

[0045] 1: Rain grate; 101: Vertical grille; 102: Debris inlet; 103: Horizontal grille; 104: Inclined grille; 105: Water filtration grille;

[0046] 2: Paddle wheel; 201: Wheel shaft; 202: Water wheel body; 203: Paddle bar; 204: Water bucket; 205: Leakage hole;

[0047] 3: Catch basin; 4: Swing arm; 5: Swing arm rotating shaft;

[0048] 6: Balance box; 601: Box body rotating shaft; 602: Box body; 603: Drainage hole;

[0049] 7: Storage bin; 8: Cleaning cable; 9: Cover plate; 10: Lower limit seat; 11: Upper limit block; 12: Limiting space; 13: Drainage pipe. Detailed implementation manners

[0050] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0051] Please note that unless otherwise defined, all scientific and technical terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used herein are only for the purpose of describing specific embodiments and are not intended to impose any limitations.

[0052] The technical solutions provided according to the embodiments of the present invention will be described in detail below in conjunction with the drawings.

[0053] Figure 1 A cross-sectional view schematically shows an automatic cleaning device for floating objects in a rainwater outlet according to an embodiment of the present invention; Figure 2 Schematically shown Figure 1 A three-dimensional diagram of the rain grate installed at the water collection well; Figure 3 Schematically shown Figure 1 A three-dimensional diagram of the seesaw structure in FIG.

[0054] See also Figures 1 to 3 According to one embodiment of the present invention, there is provided an automatic cleaning device for floating objects in a rainwater outlet, wherein the automatic cleaning device comprises:

[0055] The rain grate 1 is installed at the rainwater outlet of the water collection well 3 for collecting rainwater, and includes a horizontal grid 103 embedded at the rainwater outlet in a manner parallel to the ground. The horizontal grid 103 is used to introduce rainwater into the water collection well 3 and filter out floating objects carried by the rainwater, thereby intercepting the floating objects;

[0056] A storage bin 7, which is in communication with the rain grate 1 and is used to receive floating objects intercepted by the rain grate 1;

[0057] The seesaw structure is installed in the water collection well 3. When there is no rain, the seesaw structure is completely located below the rainwater outlet. The seesaw structure includes a first swinging part and a second swinging part. The first swinging part and the second swinging part automatically swing up and down according to the weight of rainwater injected into the first swinging part and the second swinging part.

[0058] Among them, when there is no rain, the first swing part is located at the first upward position and is located below the rain grate 1, and the second swing part is located at the second lowered position. At the second lowered position, the second swing part is completely lowered to below the horizontal grille 103: when it rains, the first swing part descends from the first upward position to the first lowered position, and the second swing part correspondingly rises from the second lowered position to the second upward position. At the second upward position, part of the second swing part can rotate and extend above the horizontal grille 103 to push the floating objects intercepted by the horizontal grille 103 to move them into the storage bin 7.

[0059] Furthermore, in some embodiments, the automatic cleaning device may also include a limit space 12, which may be located below the storage bin 7, for accommodating the first swinging part, and may include a limit top and a limit bottom, wherein in the first upward position, the first swinging part may contact the limit top, and in the first descending position, the first swinging part may contact the limit bottom, or may be located in an intermediate position between the limit top and the limit bottom.

[0060] Further, in some embodiments, the seesaw structure may include:

[0061] The swing arm assembly is rotatably mounted in the catch basin 3;

[0062] The dial wheel 2, as the second swing part above, is rotatably mounted at the first end of the swing arm assembly;

[0063] The balance box 6, as the first swing part above, can be installed at the second end of the swing arm assembly opposite to the first end;

[0064] Wherein, the swing arm assembly may include a swing arm part and a swing arm rotating shaft 5 penetrating through the swing arm part between the first end and the second end. Wherein, the swing arm part can be installed on the side wall of the catch basin 3 through the swing arm rotating shaft 5, and the swing arm part can swing freely around the swing arm rotating shaft 5. Wherein, the swing arm part may include two identical swing arms 4 arranged in parallel and spaced apart, and the swing arm rotating shaft 5 can vertically penetrate through the two swing arms 4.

[0065] In some embodiments, the swing arm 4 can be hinged to the shaft seat on the side wall of the catch basin 3 through the swing arm rotating shaft 5.

[0066] Furthermore, in some embodiments, the balance box 6 may include:

[0067] A box body rotating shaft 601, which can be rotatably installed on the two swing arms 4 at the second end of the swing arm assembly;

[0068] A box body 602, which can be fixedly installed on the box body rotating shaft 601, and may include a first end plate arranged at both ends of the box body 602 and adjacent to the two swing arms 4 respectively, and a box body side wall arranged between the two first end plates. Wherein, a water discharge hole 603 is arranged on the box body side wall.

[0069] In some preferred embodiments, the box body 602 can be hinged to the second end of the swing arm assembly through the box body rotating shaft 601.

[0070] In some embodiments, the box body 602 can be a cylindrical box body with a water discharge hole and a water inlet, or an open semi-cylindrical box body with a water discharge hole. However, the present invention is not limited thereto. According to the present invention, the box body 602 can be any suitable shape of counterweight, so that when there is no rain, the balance box 6 can be located at the first upturned position and under the rain grate 1, and when it is raining, the balance box 6 can drop from the first upturned position to the first lowered position.

[0071] As Figure 1 and 3 shown, the swing arm rotating shaft 5 is the support shaft for the free swing of the balance box 6, and the water discharge port 603 can be used to empty the stored water in the box body 602 after the runoff ends.

[0072] Furthermore, in some embodiments, the dial wheel 2 may include:

[0073] A wheel shaft 201, which is rotatably mounted at the first end of the swing arm assembly;

[0074] The water wheel body 202 may have a generally cylindrical main body fixed to the outside of the wheel shaft 201, and the main body may include second end plates arranged at both ends of the cylinder and respectively adjacent to the two swing arms 4, a plurality of concave buckets 204 alternately arranged along the circumferential direction at the side wall of the cylinder, and a plurality of protrusions extending outward from the wheel shaft 201;

[0075] The shift bar 203 may extend outward from the protruding portion in a direction away from the wheel axle 201 .

[0076] Furthermore, in some embodiments, the protrusion may be L-shaped, and may include a supporting base extending outward from the wheel axle 201 and a boss portion extending circumferentially from the supporting base along the water wheel body 202, wherein the strip 203 may extend radially outward from the boss portion.

[0077] In some preferred embodiments, Figure 3 As shown, the support base may be provided with a water leakage hole 205. Figure 1 and 3 As shown, the swing arm shaft 5 is the support shaft for the free swing of the dial wheel 2, and the water leakage hole 205 can be used to drain the water in the water bucket 204 after the runoff ends.

[0078] In some preferred embodiments, Figure 1 and 3 As shown, the thumbwheel 2 is the executive part of the automatic cleaning device. The thumbwheel 2 has a unidirectional rotation function under the action of water force, such as clockwise unidirectional rotation or counterclockwise unidirectional rotation.

[0079] The shifting bar 203 is arranged on the outer periphery of the water wheel body 202. When the scum is cleaned, the shifting bar 203 extends out of the outer side of the horizontal grid 103. As the paddle wheel 2 rotates, the shifting bar 203 shifts the scum attached to the horizontal grid 103 to the scum inlet 102, and is guided by the inclined grid 104 and accumulated in the storage bin 7.

[0080] In some preferred embodiments, the water wheel body 202 may be hinged to the first end of the swing arm assembly via the wheel axle 201 .

[0081] Furthermore, in some embodiments, the rain screen 1 may include:

[0082] The horizontal grille 103 may have at least one first grid extending horizontally, and may be installed to correspond to the position of the lever 203, so that when the thumbwheel 2 is in the second upward position, the lever 203 can rotate freely in the first grid and extend above the horizontal grille 103;

[0083] A slag inlet 102, which may be located between the horizontal grid 103 and the storage bin 7, so that floating objects enter the storage bin 7 through the slag inlet 102;

[0084] The vertical grille 101 can be located above the slag inlet 102, and the two vertical sides of the vertical grille 101 extend vertically downward to the third end of the horizontal grille 103 adjacent to the storage bin 7;

[0085] The inclined grille 104 can extend obliquely downward from the third end of the horizontal grille 103 in a direction away from the horizontal grille 103;

[0086] The water filter grille 105 can extend horizontally from the fourth end of the inclined grille 104 away from the horizontal grille 103 to the sump 3 and can include a plurality of gaps.

[0087] See Figure 1 and 2 , the slag inlet 102 is the main inlet for collecting floating objects, the inclined grille 104 is the guiding grille for floating scum, and at the same time, it can play a certain role in draining and filtering rainwater. Part of the filtered rainwater can be introduced into the balance box 6. The gaps of the water filter grille 105 can be, for example, rectangular, circular, or oval.

[0088] Furthermore, in some embodiments, see Figure 1 and 2 , the storage bin 7 can be surrounded by the vertical grille 101, the inclined grille 104, the water filter grille 105, and the side wall of the sump 3. A cover plate 9 that can be opened can also be provided at the top of the storage bin 7. The cover plate 9 can play a safety protection role and can also facilitate the removal of floating scum after rainfall.

[0089] In the present invention, the storage bin 7 can serve as a temporary storage space for floating scum or floating objects in runoff rainwater to reduce the spread of floating scum downstream. After rainfall or when the storage bin 7 is filled with floating scum, the cover plate 9 can be opened to remove the floating scum, which is convenient for cleaning.

[0090] Furthermore, in some embodiments, see Figure 1 and 2 , the limiting space 12 can be defined by the water filter grille 105 and the sump 3, and the water filter grille 105 can define the limiting top of the limiting space 12, and the sump 3 can define the side wall and the limiting bottom of the limiting space. The side of the limiting space facing the first swinging part is open. Among them, the water filter grille 105 can be provided with an upper limiting block 11 for contacting the first swinging part to prevent the first swinging part from further moving upward, and the sump 3 can be provided with a lower limiting seat 10 for contacting the first swinging part to prevent the first swinging part from further moving downward at the limiting bottom opposite to the water filter grille 105. For example, see Figure 1 , the upper limiting block 11 can extend horizontally from the fourth end of the water filter grille 105 towards the dial 2 for a certain distance, the lower limiting seat 10 can be inclined and arranged on the side wall of the sump 3, and the shapes of the upper limiting block 11 and the lower limiting seat 10 can correspond to the shape of the first swinging part.

[0091] Further, in some embodiments, the balance box 6 may further include a dredging cable 8 that passes downward through the drain hole 603 from the limit top in the limit space 12 and extends to the limit bottom. During the up-and-down swing of the balance box 6, the dredging cable 8 can slide relative to the drain hole 603 to remove debris adhering to the balance box 6.

[0092] In addition, generally speaking, as used herein, "effective torque" refers to the rotational torque applied to a rod or shaft that can drive a mechanical system to rotate or turn.

[0093] The working process of the automatic cleaning device for rainwater inlet floating debris according to a specific example in an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0094] When there is no rain, as Figure 1 shown, the effective torque of the dial wheel 2 on the swing arm rotating shaft 5 is greater than the effective torque of the balance box 6 on the swing arm rotating shaft 5, so that the dial wheel 2 descends relative to the swing arm rotating shaft 5 and is located at the second descending position. At the same time, the balance box 6 can be correspondingly upturned to the first upturned position, and is located below the storage bin 7 and in contact with the upper limit block 11. The dial bar 203 descends below the horizontal grid 103 to prevent interference with ground traffic and keep the ground level and clean. During the rainfall runoff process, a part of the rainwater flow filtered by the rain grate 1 can flow into or be injected into the water bucket 204 of the dial wheel 2 and the balance box 6, as Figure 3 shown. When the weight of the water in the balance box 6 increases to a set value, the effective torque of the balance box 6 on the swing arm rotating shaft 5 is greater than the effective torque of the dial wheel 2 on the swing arm rotating shaft 5, so that the balance box 6 can sink or descend to the first descending position. At the same time, the dial wheel 2 can be correspondingly upturned from the second descending position to the second upturned position, and the dial wheel 2 rotates unidirectionally under the hydraulic action. The dial bar 203 also rotates simultaneously and extends above the horizontal grid 103. During the continuous rotation of the dial wheel 2, the dial bar 203 continuously pushes and removes the scum covering the horizontal grid 103, enabling it to pass through the slag inlet 102. Most of these scum or floating debris enter the storage bin 7 under the action of gravity and water flow impact, and a small part can enter the catch basin 3, for example, onto the balance box 6 below the storage bin 7. The dredging cable 8 passes through the drain hole 603 and is fixed at both ends on the rain grate and the well body of the catch basin 3. During the swing of the balance box 6, relative sliding occurs between the dredging cable 8 and the drain hole 603, and the adhered garbage can be removed during the sliding process. As Figure 1As shown, the rainwater flowing into the catch basin 3 can be quickly drained away through the drainage pipe 13 of the pipe network. After the rainfall stops, the runoff rainwater terminates. The rainwater remaining in the water bucket 204 can flow out through the water leakage holes 205 of the dial wheel 2, and the rainwater remaining in the box body 602 can flow out through the water discharge holes 603. The balance box 6 becomes lighter and tilts upward, and the dial wheel 2 sinks accordingly. The dial bar 203 is completely hidden under the horizontal grille 103 as the dial wheel 2 descends. Then, the cover plate 9 of the storage bin 7 can be opened, and the scum collected in the storage bin 7 can be transported to the scum treatment site according to environmental protection requirements. When the runoff rainwater forms again during the next rainfall, the cycle repeats, thus realizing the automatic cleaning of the scum on the horizontal grille 103 and the automatic hiding of the dial bar 203.

[0095] In summary, the automatic cleaning device for rainwater inlet floating objects according to the embodiments of the present invention can automatically remove the scum or floating objects intercepted by the rain grate in the rainwater, automatically collect the scum or floating objects, with good cleaning effect, driven by the hydraulic power provided by the rainwater without other external power, simple structure, safe and reliable in use, low cost, easy to implement, and conducive to the generalization of the product, etc.

[0096] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic cleaning device for floating objects in a rainwater outlet, characterized in that: include: A rain grate (1) is installed at the rainwater outlet of a water collection well (3) for collecting rainwater, and comprises a horizontal grid (103) embedded in the rainwater outlet in a manner parallel to the ground, wherein the horizontal grid (103) is used to introduce rainwater into the water collection well (3) and filter out floating objects carried in the rainwater, thereby intercepting the floating objects; A storage bin (7) which is in communication with the rain grate (1) and is used to receive floating objects intercepted by the rain grate (1); A seesaw structure is installed in the water collection well (3). When there is no rain, the seesaw structure is completely located below the rainwater outlet. The seesaw structure comprises a first swinging part and a second swinging part. The first swinging part and the second swinging part automatically swing up and down according to the weight of rainwater injected into the first swinging part and the second swinging part. Wherein, when there is no rain, the first swing part is located at a first upward position and is located below the rain grate (1), and the second swing part is located at a second lowered position. In the second lowered position, the second swing part is completely lowered below the horizontal grille (103); when it rains, the first swing part is lowered from the first upward position to the first lowered position, and the second swing part is correspondingly raised from the second lowered position to the second upward position. In the second upward position, part of the second swing part can rotate and extend above the horizontal grille (103) to push the floating objects intercepted by the horizontal grille (103) to move them into the storage bin (7).

2. The automatic cleaning device for floating objects in rainwater outlets according to claim 1, characterized in that: It also includes a limiting space (12), which is located below the storage bin (7) and is used to accommodate the first swinging part, and includes a limiting top and a limiting bottom, wherein in the first upward position, the first swinging part is in contact with the limiting top, and in the first downward position, the first swinging part is in contact with the limiting bottom, or is located in an intermediate position between the limiting top and the limiting bottom.

3. The automatic cleaning device for floating objects in a rainwater outlet according to claim 2, characterized in that: The seesaw structure comprises: A swing arm assembly, which is rotatably mounted in the water collection well (3); A thumbwheel (2) as the second swinging part, which is rotatably mounted on the first end of the swing arm assembly; A balance box (6) as the first swing part, which is installed at a second end of the swing arm assembly opposite to the first end; The swing arm assembly comprises a swing arm portion and a swing arm shaft (5) passing through the swing arm portion between the first end portion and the second end portion, wherein the swing arm portion is mounted on the side wall of the water collection well (3) through the swing arm shaft (5), and the swing arm portion swings freely around the swing arm shaft (5), wherein the swing arm portion comprises two identical swing arms (4) arranged in parallel and spaced apart, and the swing arm shaft (5) vertically passes through the two swing arms (4).

4. The automatic cleaning device for floating objects in a rainwater outlet according to claim 3, characterized in that: The balance box (6) comprises: A housing rotating shaft (601) rotatably mounted to the two swing arms (4) at the second end of the swing arm assembly; A box body (602) is fixedly mounted to the box body rotating shaft (601), and comprises first end plates arranged at both ends of the box body (602) and respectively adjacent to the two swing arms (4), and a box body side wall arranged between the two first end plates, wherein the box body side wall is provided with a drainage hole (603).

5. The automatic cleaning device for floating objects in a rainwater outlet according to claim 4, characterized in that: The thumbwheel (2) comprises: an axle (201) rotatably mounted to the two swing arms (4) at the first end of the swing arm assembly; A water wheel body (202) having a generally cylindrical main body fixed to the outside of the wheel shaft (201), the main body comprising second end plates arranged at both ends of the cylinder and respectively adjacent to the two swing arms (4), a plurality of concave water buckets (204) arranged alternately along the circumferential direction on the side wall of the cylinder, and a plurality of protrusions extending outward from the wheel shaft (201); A shift bar (203) extends outward from the protruding portion in a direction away from the wheel axle (201).

6. The automatic cleaning device for floating objects in a rainwater outlet according to claim 5, characterized in that: The protrusion is L-shaped, comprising a support base extending outward from the wheel axle (201) and a boss portion extending from the support base along the circumference of the water wheel body (202), wherein the strip (203) extends radially outward from the boss portion, and preferably, the support base is provided with a water leakage hole (205).

7. The automatic cleaning device for floating objects in a rainwater outlet according to claim 6, characterized in that: The rain screen (1) comprises: The horizontal grille (103) has at least one first grid extending horizontally and is installed to correspond to the position of the selector bar (203), so that when the thumbwheel (2) is in the second upward position, the selector bar (203) can rotate freely in the first grid and extend above the horizontal grille (103); a slag inlet (102) located between the horizontal grid (103) and the storage bin (7), so that floating objects can enter the storage bin (7) through the slag inlet (102); A vertical grid (101) located above the slag inlet (102), and two vertical side portions of the vertical grid (101) vertically extending downward to a third end portion of the horizontal grid (103) adjacent to the storage bin (7); an inclined grille (104) extending obliquely downward from the third end of the horizontal grille (103) in a direction away from the horizontal grille (103); The water filter grid (105) extends horizontally from the fourth end of the inclined grid (104) away from the horizontal grid (103) to the water collection well (3) in a direction away from the inclined grid (104), and includes a plurality of slits.

8. The automatic cleaning device for floating objects in a rainwater outlet according to claim 7, characterized in that: The storage bin (7) is surrounded by the vertical grille (101), the inclined grille (104), the water filter grille (105), and the side wall of the water collection well (3), and an openable cover plate (9) is also provided on the top of the storage bin (7).

9. The automatic cleaning device for floating objects in a rainwater outlet according to claim 8, characterized in that: The limiting space (12) is defined by the water filter grating (105) and the water collection well (3), and the water filter grating (105) defines the limiting top of the limiting space (12), and the water collection well (3) defines the side wall and the limiting bottom of the limiting space, and the limiting space is open toward the side of the first swinging part, wherein the water filter grating (105) is provided with an upper limiting block (11) for contacting with the first swinging part to prevent the first swinging part from moving further upward, and the water collection well (3) is provided with a lower limiting seat (10) at the limiting bottom opposite to the water filter grating (105) for contacting with the first swinging part to prevent the first swinging part from moving further downward.

10. The automatic cleaning device for floating objects in a rainwater outlet according to claim 9, characterized in that: The balance box (6) further comprises a dredging rope (8) extending from the limit top downward through the drain hole (603) and to the limit bottom in the limit space, wherein, during the up and down swinging of the balance box (6), the dredging rope (8) slides relative to the drain hole (603) to clear debris adhered to the balance box (6).

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