Sewage suction device

Abstract

The utility model relates to a dirt suction device which is used for sucking dirt in liquid. The sewage suction device comprises a sewage suction pump, a protective cover, a water inlet pipe and a stirring piece. A cavity with an opening is defined by the protective cover; the protective cover is provided with a first through hole and a second through hole, and any two of the first through hole, the second through hole and the opening are arranged at intervals and communicate with the cavity. The opening of the protective cover is used for being arranged in liquid. A pipe opening in one end of the water inlet pipe is communicated with the liquid inlet end of the sewage suction pump; the other end of the water inlet pipe penetrates through the first through hole and is connected with the protective cover; a pipe orifice at one end, far away from the sewage suction pump, of the water inlet pipe is communicated with the cavity. The stirring piece comprises a stirring handle and a stirring head; the stirring handle penetrates through the second through hole and is connected to the stirring head; and the stirring head is arranged in the cavity. According to the sewage suction device, aquatic animals can be prevented from being accidentally injured in the sewage suction process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water body cleaning of aquatic animals, in particular to a sewage suction device. BACKGROUND

[0002] In order to meet the needs of animal life and popular science education, the marine animal conservation water body in the aquarium often needs to restore the seabed environment and adopt multi-species mixed culture and other forms. At the same time, the conservation water body in the aquarium is generally large, although the water quality is stable due to the circulation and filtration of the life support system, but the bottom layer will still deposit relatively heavy animal excrement and feed and other pollutants. It is difficult to frequently replace the bottom sand in a large water body, so a convenient bottom layer sewage removal device is needed.

[0003] In the related art, the sewage removal device includes a water suction pump, a water inlet pipe and a sewage scraping plate. One end of the water inlet pipe is connected to the liquid inlet end of the water suction pump, and the other end of the water inlet pipe is used to extend into the water body. Specifically, the sewage scraping plate is used to scrape the sewage at the bottom of the water body, and then the sewage scraped by the sewage scraping plate is sucked out through the water inlet pipe under the power of the water suction pump.

[0004] However, in the process of operating the sewage removal device to remove the sewage in the water body, the marine animals are easily injured, and the sewage suction port of the sewage removal device is easy to suck out the bottom sand when sucking the bottom layer sewage, causing the blockage of the sewage suction port and the pipeline. Although the workers can enter the water body to perform more accurate sewage suction cleaning, since the water body in the aquarium is usually a low-temperature water body, long-term operation in the low-temperature water body is not conducive to the health of the workers. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a sewage suction device to solve the problems of easy injury to marine animals, easy suction of bottom sand and damage to the health of workers in the process of operating the sewage removal device to remove the sewage in the water body.

[0006] A sewage suction device is used to suck the sewage in a liquid, and the sewage suction device comprises:

[0007] a sewage suction pump;

[0008] a protective cover, which is arranged to form a cavity with an opening; the protective cover is provided with a first through hole and a second through hole, and any two of the first through hole, the second through hole and the opening are arranged at intervals and are in communication with the cavity; the opening of the protective cover is arranged in the liquid;

[0009] a water inlet pipe, one end of the water inlet pipe is in communication with the liquid inlet end of the sewage suction pump; the other end of the water inlet pipe is arranged in the first through hole and connected with the protective cover; and the opening of the water inlet pipe away from the sewage suction pump is in communication with the cavity;

[0010] The stirring member comprises a stirring handle and a stirring head. The stirring handle is arranged in the second through hole and connected to the stirring head. The stirring head is arranged in the cavity.

[0011] In some embodiments, the water inlet pipe comprises:

[0012] The first water pipe, one end of the first water pipe is communicated with the liquid inlet end of the sewage pump;

[0013] The second water pipe, one end of the second water pipe is communicated with the other end of the first water pipe, the other end of the second water pipe is arranged in the first through hole and connected to the protective cover; the opening of the other end of the second water pipe away from the sewage pump is communicated with the cavity.

[0014] In some embodiments, the hardness of the first water pipe is less than the hardness of the second water pipe; and / or

[0015] The size of the first water pipe along the extension direction is greater than the size of the second water pipe along the extension direction.

[0016] In some embodiments, the stirring handle comprises:

[0017] The gripping portion;

[0018] The connecting portion is connected to the gripping portion and the stirring head; the gripping portion extends along the first direction, and the connecting portion extends along the second direction;

[0019] Wherein, the first direction and the second direction intersect.

[0020] In some embodiments, the size of the gripping portion along the first direction is less than the size of the connecting portion along the second direction.

[0021] In some embodiments, the stirring head comprises:

[0022] The first stirring unit;

[0023] The second stirring unit is connected to the connecting portion and the first stirring unit; the extension direction of the first stirring unit and the extension direction of the second stirring unit are different.

[0024] In some embodiments, the second stirring unit is a plurality of, and the plurality of second stirring units are arranged at intervals along the extension direction of the first stirring unit.

[0025] In some embodiments, the protective cover comprises:

[0026] The protective cover body;

[0027] The extension portion is connected to the surface of the protective cover body and cooperatively surrounds the cavity with the protective cover body to form an opening; the extension portion is located outside the cavity; the first through hole penetrates the extension portion and the protective cover body;

[0028] The other end of the water inlet pipe away from the sewage pump is connected to the extension portion.

[0029] In some embodiments, the distance between the orifice of the first through hole away from the opening of the cavity is 10-30 cm; and / or

[0030] The aperture of the first through hole is 3-5 cm.

[0031] In some embodiments, the protective cover is an integrally formed structure; and / or

[0032] The stirring member is an integrally formed structure; and / or

[0033] The water inlet pipe is adhesively connected between the end away from the sewage pump and the protective cover; and / or

[0034] The sewage device further comprises a driving member connected to at least one of the water inlet pipe and the protective cover for driving the movement of the protective cover.

[0035] The above-mentioned sewage device is used for sucking the sewage in the liquid. The sewage device comprises a sewage pump, a protective cover, a water inlet pipe and a stirring member. The protective cover is arranged to form a cavity with an opening. The protective cover is provided with a first through hole and a second through hole. Any two of the first through hole, the second through hole and the opening are arranged to be spaced apart and are in communication with the cavity. The opening of the protective cover is arranged in the liquid. The water inlet pipe is in communication with the liquid inlet end of the sewage pump at one end. The other end of the water inlet pipe is arranged in the first through hole and is connected to the protective cover. The opening of the end of the water inlet pipe away from the sewage pump is in communication with the cavity. The stirring member comprises a stirring handle and a stirring head. The stirring handle is arranged in the second through hole and is connected to the stirring head. The stirring head is arranged in the cavity.

[0036] The sewage device of the present application is arranged in the area where the sewage needs to be sucked when the sewage needs to be sucked. At this time, the opening of the protective cover is arranged in the liquid. Since the stirring member comprises a stirring handle and a stirring head. The stirring handle is arranged in the second through hole and is connected to the stirring head. The stirring head is arranged in the cavity. Therefore, the stirring handle can drive the stirring head to move, and the liquid and the sewage in the liquid can be stirred. Further, since the water inlet pipe is in communication with the liquid inlet end of the sewage pump at one end. The other end of the water inlet pipe is arranged in the first through hole and is connected to the protective cover. The opening of the end of the water inlet pipe away from the sewage pump is in communication with the cavity. Therefore, under the action of the power of the sewage pump, the liquid and the sewage in the liquid can be sucked out through the water inlet pipe. Since the stirring head inside the protective cover and the aquatic animals outside the protective cover can be isolated by the protective cover during the process of sucking the sewage, the aquatic animals can be avoided to be injured during the process of sucking the sewage, the blockage caused by sucking the bottom sand is reduced, and the number of times of entering the water for work by the workers is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a structural schematic view of the sewage device in an embodiment of the present application.

[0038] Figure 2 FIG. 4 is a schematic view of another structure of the sewage suction device according to an embodiment of the present application.

[0039] Figure 3 FIG. 5 is a schematic view of another structure of the sewage suction device according to an embodiment of the present application.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 1. A sewage suction device

[0042] 11. A sewage suction pump; 12. A protective cover; 13. A water inlet pipe; 14. An agitation member; 15. A driving member

[0043] 12a. An opening; 12b. A first through hole; 12c. A second through hole

[0044] 121. A protective cover body; 122. An extension

[0045] 131. A first water pipe; 132. A second water pipe

[0046] 141. An agitation handle; 142. An agitation head

[0047] 1411. A gripping portion; 1412. A connecting portion

[0048] 1421. A first agitation unit; 1422. A second agitation unit DETAILED DESCRIPTION

[0049] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0050] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0051] In addition, if there are these terms "first", "second", these terms are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0052] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "below" the second feature and the like, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0054] It should be noted that the conservation water body in the aquarium is generally large, and the aquarium has a bottom layer of sea sand and the like. The bottom layer will deposit relatively heavy animal excrement and bait and other pollutants. The water body with a large amount of water is difficult to achieve frequent replacement of the bottom sand, and the role of the pollution suction device is to suck away the pollutants on the bottom layer of the water body.

[0055] Referring to Figure 1The application provides a sewage suction device 1. The sewage suction device 1 is used for sucking sewage in liquid. The sewage suction device 1 comprises a sewage suction pump 11, a protective cover 12, a water inlet pipe 13 and an agitating member 14. The protective cover 12 is provided with an opening 12a. The protective cover 12 is provided with a first through hole 12b and a second through hole 12c. Any two of the opening 12a, the first through hole 12b and the second through hole 12c are arranged at intervals and are in communication with the cavity. The opening 12a of the protective cover 12 is arranged in liquid. One end of the water inlet pipe 13 is in communication with a liquid inlet end of the sewage suction pump 11. The other end of the water inlet pipe 13 is arranged in the first through hole 12b and connected to the protective cover 12. The other end of the water inlet pipe 13 is in communication with the cavity. The agitating member 14 comprises an agitating handle 141 and an agitating head 142. The agitating handle 141 is arranged in the second through hole 12c and connected to the agitating head 142. The agitating head 142 is arranged in the cavity.

[0056] It should be noted that the sewage suction device 1 in the application can be used for removing sewage in the bottom layer of water in an aquarium, and can also be used for removing sewage in the bottom layer of water in an aquarium, that is, the sewage suction device 1 in the application can be used for removing sewage in the bottom layer of water containing aquatic animals.

[0057] It should be noted that the water and the liquid in the application are the same concept, and are the basic environment and material basis required for the survival of aquatic animals. Herein, the application does not limit the names of the water and the liquid. Meanwhile, the sewage suction device 1 in the application can be used for sucking and removing excrement and other sewage of aquatic animals, and can also be used for sucking and removing excrement of marine animals. Of course, the sewage suction device 1 in the application can also be used for sucking and removing excrement of freshwater animals. Herein, the application does not limit the specific excrement of the species sucked by the sewage suction device 1, and the application is exemplarily illustrated by taking the example of sucking and removing excrement of aquatic animals in liquid.

[0058] The sewage suction pump 11 is a kind of mechanical equipment for pumping and conveying sewage, sludge and liquid containing solid particles, fibers and other impurities. The sewage suction pump 11 mainly uses the centrifugal force or volume change generated by the rotation of the impeller to realize the pumping and conveying of liquid. For example, the centrifugal sewage suction pump 11, when the impeller rotates at high speed, the liquid in the pump is thrown to the outer edge of the impeller under the action of centrifugal force, forming a low pressure area, so that the liquid outside enters the pump under the action of atmospheric pressure, realizing the liquid suction process. The volume type sewage suction pump 11 periodically sucks and discharges liquid by changing the volume of the working chamber, so that the sewage suction pump 11 can suck and remove liquid and sewage in the liquid. The agitating member 14 is a power structure for agitating liquid, so that the sewage can be turned out by the agitating action of liquid and bottom sand, and then the liquid and the sewage in the liquid can be sucked away by the water pipe and the sewage suction pump 11.

[0059] Specifically, when the suction of the dirt is needed, the protective cover 12 is arranged in the area where the dirt is needed to be sucked, at this time, the opening 12a of the protective cover 12 is arranged in the liquid. Since the stirring member 14 comprises a stirring handle 141 and a stirring head 142; the stirring handle 141 is arranged in the second through hole 12c and is connected to the stirring head 142; the stirring head 142 is arranged in the cavity, so that the stirring handle 141 can drive the stirring head 142 to move, and the liquid and the dirt in the liquid can be stirred. Further, one end of the water inlet pipe 13 is communicated with the liquid inlet end of the dirt suction pump 11; the other end of the water inlet pipe 13 is arranged in the first through hole 12b and is connected to the protective cover 12; and the opening of the other end of the water inlet pipe 13 away from the dirt suction pump 11 is communicated with the cavity, so that the liquid and the dirt in the liquid can be sucked out through the water inlet pipe 13 under the power of the dirt suction pump 11. Since the stirring head 142 inside the protective cover 12 and the aquatic animals outside the protective cover 12 can be isolated by the protective cover 12 during the suction of the dirt, the aquatic animals can be prevented from being injured during the suction of the dirt.

[0060] It can be understood that during the suction of the dirt by the dirt suction device 1, the dirt suction pump 11 can be arranged on the operation platform above the liquid in advance, and then the cavity of the protective cover 12 in the liquid is communicated with the dirt suction pump 11 above the liquid through the water inlet pipe 13. In this way, the position of the dirt suction pump 11 can be conveniently arranged, on the one hand, the operation process of the operator can be facilitated, and on the other hand, the power driving part of the dirt suction pump 11 can be prevented from being directly contacted with the liquid to affect the normal use of the dirt suction pump 11, so that the service life of the dirt suction pump 11 can be prolonged.

[0061] Further, during the suction of the dirt by the dirt suction device 1, the protective cover 12 is arranged in the area where the dirt is needed to be sucked, at this time, the protective cover 12 can be directly embedded in the bottom sand at the bottom of the liquid, so that the protective cover 12 and the bottom sand at the bottom of the liquid form a completely closed area, so that the stirring head 142 inside the protective cover 12 and the aquatic animals outside the protective cover 12 can be completely isolated during the stirring of the stirring member 14, so that the aquatic animals can be further prevented from being injured during the suction of the dirt.

[0062] Of course, the protective cover 12 and the bottom sand at the bottom of the liquid can also have a gap, during the suction of the dirt in the liquid, the gap between the protective cover 12 and the bottom sand can be reasonably controlled according to the size of the aquatic animals, as long as the gap between the protective cover 12 and the bottom sand is smaller than the size of the aquatic animals, so that the aquatic animals can be prevented from entering the protective cover 12 from the outside of the protective cover 12 through the gap between the protective cover 12 and the bottom sand, so that the position of the protective cover 12 can be conveniently changed, and the suction efficiency of the dirt in the liquid can be improved.

[0063] In addition, the protective cover 12 is arranged in the area where the dirt needs to be sucked, and the stirring head 142 is driven to move by operating the stirring handle 141, so that the stirring head 142 can directly stir the bottom sand, so that the dirt deposited in the bottom sand can be stirred out, thereby further improving the dirt sucking effect.

[0064] In some embodiments, referring to Figure 2 As shown, the water inlet pipe 13 includes a first water pipe 131 and a second water pipe 132. One end of the first water pipe 131 is connected to the liquid inlet end of the dirt sucking pump 11; one end of the second water pipe 132 is connected to the other end of the first water pipe 131, and the other end of the second water pipe 132 is arranged in the first through hole 12b and connected to the protective cover 12; the other end of the second water pipe 132 away from the dirt sucking pump 11 is connected to the cavity.

[0065] In this way, the other end of the second water pipe 132 away from the first water pipe 131 is always connected to the protective cover 12, thereby ensuring the stability and reliability of the connection between the second water pipe 132 and the protective cover 12. At the same time, the second water pipe 132 is connected to the dirt sucking pump 11 through the first water pipe 131, so that the length of the first water pipe 131 can be reasonably selected according to the actual use requirement, thereby facilitating the use in different scenes and facilitating the operation of the operator.

[0066] In some embodiments, the hardness of the first water pipe 131 is less than the hardness of the second water pipe 132.

[0067] In this way, since the hardness of the first water pipe 131 is less than the hardness of the second water pipe 132, on the one hand, the stability and reliability of the connection between the second water pipe 132 and the protective cover 12 can be ensured, thereby avoiding the loosening or even breaking between the second water pipe 132 and the protective cover 12. On the other hand, the hardness of the first water pipe 131 is relatively low compared with the second water pipe 132, so that the position, posture, angle, etc. of the first water pipe 131 can be adjusted conveniently, and the protective cover 12 can be placed in the area where the dirt needs to be sucked, thereby ensuring the smooth operation of the dirt sucking device 1.

[0068] In some embodiments, the size of the first water pipe 131 along the extension direction is greater than the size of the second water pipe 132 along the extension direction.

[0069] In this way, since the size of the first water pipe 131 along the extension direction is greater than the size of the second water pipe 132 along the extension direction, the position, posture, angle, etc. of the first water pipe 131 can be adjusted more conveniently, and the protective cover 12 can be placed in the area where the dirt needs to be sucked more conveniently, thereby further ensuring the smooth operation of the dirt sucking device 1. In addition, the second water pipe 132 and the dirt sucking pump 11 can be connected at a relatively long distance, so that the dirt sucking device 1 can suck the dirt in a deeper liquid.

[0070] In some embodiments, referring to Figure 2 As shown in the drawings, the stirring handle 141 comprises a holding portion 1411 and a connecting portion 1412. The connecting portion 1412 is connected to the holding portion 1411 and the stirring head 142; the holding portion 1411 extends along a first direction, and the connecting portion 1412 extends along a second direction. The first direction and the second direction intersect.

[0071] In this way, the holding portion 1411 extends along the first direction, which is convenient for the operator to hold and apply force, conforms to the principle of ergonomics, and enables the operator to hold the stirring handle 141 in a natural and comfortable posture. The connecting portion 1412 extends along the second direction intersecting the first direction, which can keep the stirring head 142 in a proper spatial positional relationship with the holding portion 1411, so that the operator can easily control the position and angle of the stirring head 142 when holding it, facilitating the stirring of liquid and pollutants in liquid in different scenarios and improving the flexibility and convenience of operation. In addition, this design helps to effectively transmit the force applied by the operator on the holding portion 1411 to the stirring head 142, and the intersection of the two directions makes the force transmission more stable and efficient, avoiding poor stirring effect due to poor force transmission. At the same time, it can better adapt to different stirring requirements, and accurately transmit the force to the stirring head 142 through this structure to achieve powerful and uniform stirring.

[0072] In some embodiments, the size of the holding portion 1411 along the first direction is smaller than the size of the connecting portion 1412 along the second direction.

[0073] In this way, the size of the connecting portion 1412 is relatively large, which means that the lever arm from the holding portion 1411 to the stirring head 142 is relatively long. According to the principle of leverage, when stirring, the operator can exert a smaller force on the holding portion 1411 to generate a larger torque at the stirring head 142, thereby saving more energy for stirring operation and improving stirring efficiency.

[0074] In addition, the small size of the holding portion 1411 facilitates the operator to accurately control the direction and intensity of the movement of the stirring handle 141. The operator can more flexibly rotate the wrist or arm to achieve fine operation of the stirring head 142, for example, in the case of slow and uniform stirring, the speed and amplitude of stirring can be more accurately controlled.

[0075] In some embodiments, referring to Figure 2 As shown in the drawings, the stirring head 142 comprises a first stirring unit 1421 and a second stirring unit 1422. The second stirring unit 1422 is connected to the connecting portion 1412 and the first stirring unit 1421; the extension direction of the first stirring unit 1421 and the extension direction of the second stirring unit 1422 are different.

[0076] In this way, the different extension directions enable the first stirring unit 1421 and the second stirring unit 1422 to cover a wider range. For example, the first stirring unit 1421 can stir the liquid and the dirt in the liquid in the horizontal direction, and the second stirring unit 1422 is inclined at an angle or perpendicular to the first stirring unit 1421, and can generate a force in the vertical direction to flip the dirt in the liquid upwards, so that the dirt in the liquid can be fully stirred, and local uneven stirring can be avoided. At the same time, the different extension directions of the first stirring unit 1421 and the second stirring unit 1422 can generate a complex flow field of the liquid and the dirt in the liquid, which can further improve the stirring effect of the dirt, and thus the dirt suction effect of the dirt can be further improved.

[0077] In some embodiments, the second stirring unit 1422 is a plurality of second stirring units 1422, and the plurality of second stirring units 1422 are arranged at intervals along the extension direction of the first stirring unit 1421.

[0078] In this way, the plurality of second stirring units 1422 arranged at intervals along the extension direction of the first stirring unit 1421 can further improve the stirring effect of the dirt in the process of stirring the liquid and the dirt by the stirring head 142, and thus the dirt suction effect of the dirt can be further improved.

[0079] In some embodiments, referring to Figure 2 As shown in the figure, the protective cover 12 includes a protective cover body 121 and an extension part 122. The extension part 122 is connected to the surface of the protective cover body 121, and cooperates with the protective cover body 121 to form a cavity with an opening 12a; the extension part 122 is located outside the cavity; and the first through hole 12b penetrates the extension part 122 and the protective cover body 121. The water inlet pipe 13 is connected to the extension part 122 away from the dirt suction pump 11.

[0080] In this way, the extension part 122 is connected to the surface of the protective cover body 121, and cooperates with the protective cover body 121 to form a cavity with an opening 12a, and the water inlet pipe 13 is connected to the extension part 122 away from the dirt suction pump 11. The water inlet pipe 13 and the protective cover 12 can be directly connected through the water inlet pipe 13 and the extension part 122, which facilitates the connection of the water inlet pipe 13 and the protective cover 12, and can improve the stability and reliability of the connection between the water inlet pipe 13 and the protective cover 12.

[0081] In some embodiments, referring to Figure 3 As shown in the figure, the distance between the opening of the first through hole 12b away from the cavity and the opening 12a is 10-30 cm.

[0082] It should be noted that the distance between the opening of the first through hole 12b away from the cavity and the opening 12a is L in Figure 3

[0083] ​Therefore, the distance between the opening of the first through hole 12b away from the one end of the cavity and the opening 12a is 10-30 cm, which can avoid the distance between the opening of the first through hole 12b away from the one end of the cavity and the opening 12a being too small, so that the suction pump 11 synchronously sucks the bottom sand stirred up by the stirring head 142, thereby reducing the suction effect. In addition, the distance between the opening of the first through hole 12b away from the one end of the cavity and the opening 12a can be avoided being too large, so that the suction head cannot fully suck the dirt in the liquid, which also reduces the suction effect. Since the distance between the opening of the first through hole 12b away from the one end of the cavity and the opening 12a is 10-30 cm, the suction pump 11 can accurately suck the dirt in the liquid, thereby improving the suction effect.

[0084] It should be noted that the density of the bottom sand is larger than that of the dirt, so that in the process of stirring the liquid and the bottom sand by the stirring head 142, the dirt will be flipped to a position farther away from the bottom of the liquid, i.e., a position closer to the suction pump 11, thereby ensuring that the suction pump 11 sucks the dirt and not the bottom sand.

[0085] In some embodiments, the first through hole 12b has a hole diameter of 3-5 cm.

[0086] Therefore, the dirt can be prevented from blocking the first through hole 12b, and the dirt can smoothly enter the water inlet pipe 13 and then enter the suction pump 11, thereby improving the suction effect of the dirt and ensuring the smooth operation of the suction device 1.

[0087] In some embodiments, the protective cover 12 is an integrally formed structure.

[0088] Therefore, the integrally formed structure has no splicing gap or welding point, and has higher overall strength and stability. During use, it can better withstand external force impact and vibration, and is not prone to cracking, deformation or damage, thereby ensuring the service life and reliability of the protective cover 12. In addition, the integrally formed protective cover 12 has a simple structure, which can facilitate the production and preparation of the protective cover 12.

[0089] In some embodiments, the stirring member 14 is an integrally formed structure.

[0090] Therefore, the integrally formed stirring member 14 has no welding, splicing or other weak links, and has a solid overall structure that can withstand a large external force and torque. During stirring, it is not prone to deformation or fracture, thereby ensuring the service life and reliability of the stirring member 14. In addition, the integrally formed protective cover 12 has a simple structure, which can facilitate the production and preparation of the stirring member 14.

[0091] In some embodiments, the water inlet pipe 13 is adhesively connected between the end away from the suction pump 11 and the protective cover 12.

[0092] Thus, the adhesive connection can firmly fix the water inlet pipe 13 and the protective cover 12 together, and ensure that the water inlet pipe 13 maintains a stable position during operation, and will not be displaced or shaken due to the vibration of the sewage pump 11, the impact of liquid or other external forces. This helps to ensure the connection accuracy between the water inlet pipe 13 and the sewage pump 11 and other related components, so that the liquid and sewage can smoothly enter the sewage pump 11, and the sewage efficiency is improved.

[0093] In some embodiments, referring to Figure 3 As shown in the drawings, the sewage device 1 further comprises a driving member 15 connected to at least one of the water inlet pipe 13 and the protective cover 12, for driving the protective cover 12 to move.

[0094] Thus, on the one hand, the driving member 15 can be connected to at least one of the water inlet pipe 13 and the protective cover 12, and drive the protective cover 12 to move to the area where the sewage is needed, so as to facilitate the control of the sewage area of the protective cover 12. On the other hand, the operator can operate on the operation platform above the liquid, and by controlling the driving member 15, the protective cover 12 can be moved to the area where the sewage is needed, so as to reduce the operation time of the operator under water, reduce the influence of the low-temperature liquid environment on the operator, and improve the safety of the operator during operation.

[0095] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0096] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A suction device for suctioning dirt from a liquid; characterized in that, The sewage suction device comprises: a sewage suction pump; a protective cover, which forms a cavity with an opening; the protective cover is provided with a first through hole and a second through hole, any two of the first through hole, the second through hole and the opening are arranged at intervals and are in communication with the cavity; the opening of the protective cover is arranged in the liquid; a water inlet pipe, one end of the water inlet pipe is in communication with the liquid inlet end of the sewage suction pump; the other end of the water inlet pipe is arranged in the first through hole and connected to the protective cover; and the opening of the other end of the water inlet pipe away from the sewage suction pump is in communication with the cavity; an agitating member, which comprises an agitating handle and an agitating head; the agitating handle is arranged in the second through hole and connected to the agitating head; and the agitating head is arranged in the cavity.

2. A sewage suction device according to claim 1, characterised in that The water inlet pipe comprises: a first water pipe, one end of the first water pipe is in communication with the liquid inlet end of the sewage suction pump; a second water pipe, one end of the second water pipe is in communication with the other end of the first water pipe; the other end of the second water pipe is arranged in the first through hole and connected to the protective cover; and the opening of the other end of the second water pipe away from the sewage suction pump is in communication with the cavity.

3. A sewage suction device according to claim 2, wherein, The hardness of the first water pipe is less than that of the second water pipe; and / or The size of the first water pipe along the extension direction is greater than that of the second water pipe along the extension direction.

4. The waste suction device of claim 1, wherein The agitating handle comprises: a holding portion; a connecting portion, which is connected to the holding portion and the agitating head; the holding portion extends along a first direction, and the connecting portion extends along a second direction; wherein the first direction and the second direction intersect.

5. A sewage suction device according to claim 4, wherein The size of the holding portion along the first direction is less than that of the connecting portion along the second direction.

6. The sewage suction device according to claim 4, characterized in that The agitating head comprises: a first agitating unit; a second agitating unit, which is connected to the connecting portion and the first agitating unit; the extension direction of the first agitating unit is different from that of the second agitating unit.

7. A sewage suction device according to claim 6, wherein The second agitating unit is in plurality, and the plurality of second agitating units are arranged at intervals along the extension direction of the first agitating unit.

8. A sewage suction device according to any one of claims 1 to 7, wherein The protective cover comprises: a protective cover body; an extension portion, which is connected to the surface of the protective cover body and forms the cavity with the opening together with the protective cover body; the extension portion is located outside the cavity; the first through hole penetrates through the extension portion and the protective cover body; the other end of the water inlet pipe away from the sewage suction pump is connected to the extension portion.

9. A sewage suction device according to any one of claims 1 to 7, wherein The distance between the opening of the first through hole away from the cavity and the opening is 10-30 cm; and / or The aperture of the first through hole is 3-5 cm.

10. A sewage suction device according to any one of claims 1 to 7, wherein The protective cover is of an integral molding structure; and / or The agitating member is of an integral molding structure; and / or The other end of the water inlet pipe away from the sewage suction pump is adhesively connected to the protective cover; and / or The sewage suction device further comprises a driving member, which is connected to at least one of the water inlet pipe and the protective cover and is used to drive the protective cover to move.

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