Silt cleaning and stirring mechanism and stirring head

Abstract

The present invention discloses a dredging and stirring mechanism, and also discloses a stirring head with the dredging and stirring mechanism, which includes a housing, a rotary drive mechanism, a waterproof housing, a sleeve and a filter screen. Stirring members are provided on the housing; the output end of the rotary drive mechanism is connected to the left end of the housing; the waterproof housing is fixedly connected to the rotary drive mechanism and covers the rotary drive mechanism; the filter screen is covered on the waterproof housing, the sleeve is connected to the waterproof housing, a mechanical seal ring is provided between the sleeve and the housing, a cable bundle passes through the central hole of the sleeve, and a sheath is provided between the cable bundle and the sleeve. The housing, the mechanical seal ring and the sheath serve as the first sealing barrier, the filter screen serves as the second sealing barrier, and the waterproof housing serves as the third sealing barrier, which play a role in sealing the rotary drive mechanism, can prevent particulate impurities from entering the rotary drive mechanism, slow down the mechanical wear of the rotary drive mechanism, and improve the service life of the entire sludge crushing and stirring device.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection equipment, and particularly relates to a dredging stirring mechanism and a stirring head. Background Art

[0002] In order to meet the requirements of environmental protection, the requirements for sewage treatment are getting higher and higher. Areas such as sedimentation tanks and sewage pipes where silt deposits need to be cleaned in time to avoid affecting the functions of sedimentation tanks and sewage pipes. When dredging, generally, a stirring device needs to be inserted into areas such as sedimentation tanks or sewage pipes to break and stir the hardened silt at the bottom. The stirring device is immersed in sewage, which contains various substances such as acids, alkalis, inorganic salts, mud, and sand. It is extremely easy to cause corrosion and wear to the stirring device, especially to key components such as the rotary drive mechanism, resulting in a short service life of the stirring device and a high dredging cost. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a dredging stirring mechanism that can better protect the rotary drive mechanism and has a longer service life.

[0004] The present invention also provides a stirring head having the above-mentioned dredging stirring mechanism.

[0005] According to an embodiment of the first aspect of the present invention, the dredging stirring mechanism includes a housing, a rotary drive mechanism, a waterproof housing, a sleeve, and a filter net. The left and right ends of the housing are respectively provided with a connection end and a first right communication port. The connection end, the first right communication port, and the central axis of the housing are coaxial. The connection end is used for rotatably connecting with an external device. The outer surface of the housing is provided with a plurality of stirring members; the output end of the rotary drive mechanism is connected to the left end of the housing; the waterproof housing is fixedly connected to the rotary drive mechanism and covers the outside of the rotary drive mechanism. There is a left Teflon ring between the left end of the waterproof housing and the housing; the filter net is covered outside the waterproof housing, and the filter net is used for filtering particulate impurities; the left end of the sleeve is connected to the right end of the waterproof housing, and the right end of the sleeve passes through the first right communication port and extends outside the housing. The right end of the sleeve is used for fixedly connecting with an external device. There is a mechanical seal between the sleeve and the inner wall of the first right communication port. A cable bundle passes through the central hole of the sleeve. One end of the cable bundle is electrically connected to the wiring terminal of the rotary drive mechanism. There is a sheath between the cable bundle and the inner wall of the sleeve. The other end of the cable bundle is used for electrically connecting with an external controller, and the controller is used for controlling the start and stop of the rotary drive mechanism.

[0006] At least, it has the following beneficial effects: The rotary drive mechanism is arranged inside the housing and wrapped by a waterproof housing. The housing, mechanical seal ring, and sheath serve as the first sealing barrier, playing a role in sealing and protecting the waterproof housing and the rotary drive mechanism, and having the functions of waterproofing and preventing impurities. The filter screen serves as the second barrier, and the filter screen has the function of filtering particulate impurities to prevent particulate impurities from approaching the waterproof housing and the rotary drive mechanism. The waterproof housing serves as the third sealing barrier, playing a role in sealing and protecting the rotary drive mechanism, having the functions of waterproofing and preventing impurities, thereby avoiding the rotary drive mechanism from being eroded by sewage, protecting the rotary drive mechanism, slowing down the wear of the rotary drive mechanism, and increasing the service life of the entire dredging and stirring mechanism. Even if the first sealing barrier and the third sealing barrier fail, the second barrier can still function. The second barrier can prevent particulate impurities from entering the rotary drive mechanism, thereby avoiding the mechanical wear of the rotary drive mechanism being aggravated by particulate impurities. While increasing the service life of the rotary drive mechanism, it enables the rotary drive mechanism to be put into use again after cleaning and maintenance.

[0007] According to some embodiments of the present invention, waterproof glue is filled between the waterproof housing and the rotary drive mechanism and / or between the cable bundle and the sleeve.

[0008] According to some embodiments of the present invention, the rotary drive mechanism includes a speed reducer, a motor, and a brake connected in series from left to right in sequence. The output end of the speed reducer is connected to the left end of the housing.

[0009] According to some embodiments of the present invention, the waterproof housing includes a middle housing and a left end cover housing connected to the left end of the middle housing. A first sealing ring is provided between the middle housing and the left end cover housing. The middle housing is sleeved on the speed reducer and the motor. The left end cover housing is provided with a first left communication port. The output end of the speed reducer passes through the first left communication port and is connected to the left end of the housing. The left Teflon ring is arranged between the housing and the left end cover housing.

[0010] According to some embodiments of the present invention, the waterproof housing further includes a right end cover housing connected to the right end of the middle housing. A second sealing ring is provided between the middle housing and the right end cover housing. The right end cover housing is connected to the brake and sleeved on the brake. The left end of the sleeve is connected to the right end of the right end cover housing. A right Teflon ring is sleeved on the sleeve, and the right Teflon ring is at the connection between the sleeve and the right end cover housing.

[0011] According to some embodiments of the present invention, the housing includes an intermediate housing and a left outer end cover connected to the left end of the housing. A third sealing ring is provided between the intermediate housing and the left outer end cover. The connection end is arranged on the left outer end cover. The output end of the rotary drive mechanism is connected to the left outer end cover.

[0012] According to some embodiments of the present invention, a second left communication port is provided through the left outer end cover and the connection end, and the output end of the rotary drive mechanism is inserted into the inner end of the second left communication port and connected to the inner wall of the second left communication port through a fastener, and the outer end of the second left communication port is blocked by a plug.

[0013] According to some embodiments of the present invention, there is a stepped surface between the outer end and the inner end of the second left communication port. The fastener includes a screw and a gasket sleeved on the screw. The screw is threadedly connected to the end face of the output end of the rotary drive mechanism, and the screw forces the gasket to abut against the stepped surface.

[0014] According to some embodiments of the present invention, the housing further includes a right outer end cover connected to the right end of the intermediate housing. A fifth sealing ring is provided between the intermediate housing and the right outer end cover, and the first right communication port is provided on the right outer end cover.

[0015] The stirring head according to the second aspect embodiment of the present invention includes an adapter rod and two of the above-mentioned dredging and stirring mechanisms. The two connection ends are coaxially arranged and are both fixedly connected to the adapter rod, and the adapter rod is used to connect to an external device.

[0016] It has at least the following beneficial effects:

[0017] The stirring head has all the beneficial effects brought by the dredging and stirring mechanism in the above-mentioned embodiments, and by respectively controlling the forward and reverse rotations of the rotary drive mechanism, the forward, backward and turning of the stirring head can be realized.

[0018] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings and embodiments, wherein:

[0020] Figure 1 is a schematic structural diagram of the dredging and stirring mechanism according to the embodiment of the present invention;

[0021] Figure 2 is a cross-sectional structural diagram of the dredging and stirring mechanism according to the embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of the dredging and stirring mechanism according to another embodiment of the present invention;

[0023] Reference numerals: housing 100, intermediate housing 110, left outer end cover 120, right outer end cover 130, third sealing ring 140, fifth sealing ring 150, connecting end 200, second left communication port 210, fastener 220, plug 230, sixth sealing ring 240, first right communication port 300, stirring member 400, rotary drive mechanism 500, speed reducer 510, motor 520 and brake 530, waterproof housing 600, middle housing 610, left end cover housing 620, first left communication port 621, right end cover housing 630, first sealing ring 640, second sealing ring 650, sleeve 700, mechanical sealing ring 710, cable harness 720, sheath 730, right Teflon ring 740, eighth sealing ring 750, left Teflon ring 800, filter screen 900. Detailed implementation manners

[0024] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0025] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] In the description of the present invention, "a plurality of" refers to more than two. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0028] Refer to Figure 1 and Figure 2, the present invention discloses a dredging and stirring mechanism, including a housing 100, a rotary drive mechanism 500, a waterproof housing 600, a sleeve 700 and a filter net 900. The left and right ends of the housing 100 are respectively provided with a connection end 200 and a first right communication port 300. The connection end, the first right communication port 300 and the central axis of the housing 100 are coaxial. The connection end is used for rotatably connecting with an external device. A plurality of stirring members 400 are arranged on the outer surface of the housing 100; the output end of the rotary drive mechanism 500 is connected to the left end of the housing 100; the waterproof housing 600 is fixedly connected to the rotary drive mechanism 500 and covers the outside of the rotary drive mechanism 500. A left Teflon ring 800 is arranged between the left end of the waterproof housing 600 and the housing 100; the filter net 900 covers the outside of the waterproof housing 600; the left end of the sleeve 700 is connected to the right end of the waterproof housing 600. The right end of the sleeve 700 passes through the first right communication port 300 and extends outside the housing 100. The right end of the sleeve 700 is used for fixedly connecting with an external device. A mechanical seal ring 710 is arranged between the sleeve 700 and the inner wall of the first right communication port 300. A cable bundle 720 passes through the central hole of the sleeve 700. One end of the cable bundle 720 is electrically connected to the wiring terminal of the rotary drive mechanism 500. A sheath 730 is arranged between the cable bundle 720 and the inner wall of the sleeve 700. The other end of the cable bundle 720 is used for electrically connecting with an external controller. The controller is used to control the start and stop of the rotary drive mechanism 500.

[0029] The external device is rotatably connected to the connection end. The left end of the sleeve 700 is connected to the right end of the waterproof housing 600. The waterproof housing 600 is fixedly connected to the rotary drive mechanism 500. A mechanical seal ring 710 is arranged between the sleeve 700 and the housing 100. The mechanical seal ring 710 is similar to a bearing. The mechanical seal ring 710 can play a role in sealing and reducing friction. The external device is fixedly connected to the right end of the sleeve 700. Therefore, the external device plays a role in fixing and supporting the rotary drive mechanism 500. At the same time, the rotary drive mechanism 500 drives the housing 100 to rotate, so that the housing 100 can rotate on the external device.

[0030] The output end of the rotary drive mechanism 500 is connected to the left end of the housing 100. The rotary drive mechanism 500 can drive the housing 100 to rotate, and the housing 100 drives the stirring members 400 to rotate. The dredging and stirring mechanism is sunk into the sewage. The dredging and stirring mechanism contacts the bottom sludge, and the stirring members 400 can break and stir the sludge, and the sludge and sewage are mixed evenly, which is beneficial for the suction device to suck away the sludge and sewage.

[0031] The mechanical seal ring 710 enables the outer shell 100 to rotate on the sleeve 700. At the same time, the mechanical seal ring 710 also seals the gap between the inner wall of the first right communication port 300 and the sleeve 700. While the sheath 730 wraps the cable bundle 720, it also seals the central hole of the sleeve 700. The left Teflon ring 800 is made of Teflon material and has good non-stickiness, wear resistance and corrosion resistance. The left Teflon ring 800 is similar to a bearing and can play a role in supporting and reducing friction between the left end of the waterproof housing 600 and the outer shell 100. The filter screen 900 is arranged in the gap between the outer shell 100 and the waterproof housing 600. The filter screen 900 is covered outside the waterproof housing 600. The filter screen 900 has the function of filtering particulate impurities, such as sediment. The filter screen 900 prevents particulate impurities from entering the waterproof housing 600, thereby preventing particulate impurities from severely damaging the rotary drive mechanism 500.

[0032] The rotary drive mechanism 500 is arranged inside the outer shell 100 and is wrapped by the waterproof housing 600. The outer shell 100, the mechanical seal ring 710 and the sheath 730 serve as the first sealing barrier, which plays a role in sealing and protecting the waterproof housing 600 and the rotary drive mechanism 500, and can prevent sewage from entering the inner cavity of the outer shell 100. The filter screen 900 serves as the second barrier. When the first barrier fails, sewage and various particulate impurities carried in the sewage enter the inner cavity of the outer shell 100. The filter screen 900 filters out the particulate impurities aggregated in the sewage, completely preventing particulate impurities from approaching the waterproof housing 600 and the rotary drive mechanism 500. The waterproof housing 600 serves as the third sealing barrier, which plays a role in sealing and protecting the rotary drive mechanism 500, preventing the rotary drive mechanism 500 from being eroded by sewage, and protecting the rotary drive mechanism 500. Even if the first barrier and the third barrier are implemented, the second barrier can still function. The second barrier can prevent particulate impurities from entering the rotary drive mechanism 500, thereby preventing particulate impurities from aggravating the mechanical wear of the rotary drive mechanism 500, improving the service life of the rotary drive mechanism 500, and enabling the rotary drive mechanism 500 to be put into use again after cleaning and maintenance.

[0033] The dredging and stirring mechanism does not require an external rotary drive mechanism 500, so there is no need to worry about interference between the rotary drive mechanism 500 and the components of the sedimentation tank and the sewage discharge pipeline. The structure is simple, which is convenient for the entire dredging and stirring mechanism to enter and exit the sedimentation tank and the sewage discharge pipeline, easy to use, and reduces the cost of maintaining the rotary drive mechanism 500. External equipment can be connected to the support frame or the adapter rod, and the dredging and stirring mechanism can be extended into the sedimentation tank and the sewage discharge pipeline or lifted through the support frame or the adapter rod.

[0034] Refer to Figure 2, in some of these embodiments, waterproof glue is filled between the waterproof housing 600 and the rotary drive mechanism 500, which serves to further seal the rotary drive mechanism 500. Waterproof glue is also filled between the cable bundle 720 and the inner wall of the sleeve 700, further enhancing the effect of sealing the central hole of the sleeve 700.

[0035] In some of these embodiments, the rotary drive mechanism 500 includes a speed reducer 510, a motor 520, and a brake 530 connected in series from left to right. The speed reducer 510, the motor 520, and the brake 530 are all disposed within the waterproof housing 600. The output end of the speed reducer 510 is connected to the left end of the housing 100, and one end of the cable bundle 720 is electrically connected to the terminal of the motor 520. The speed reducer 510 serves to reduce the speed and increase the torque, thereby meeting the requirements of the lower speed and larger torque of the housing 100 and the stirring member 400. The brake 530 serves to brake. When the dredging and stirring mechanism notifies the crushing and stirring, the brake 530 promptly stops the motor 520, preventing the stirring member 400 from hitting other external components and the human body, and improving the safety of the dredging and stirring mechanism.

[0036] Refer to Figure 2 , in some of these embodiments, the waterproof housing 600 includes a middle housing 610 and a left end cover housing 620 connected to the left end of the middle housing 610. That is, the left end of the middle housing 610 is in an open state, and the rotary drive mechanism 500 can be inserted into the middle housing 610 through the open end at the left end of the middle housing 610. That is, the speed reducer 510, the motor 520, and the brake 530 can be placed within the middle housing 610. A first sealing ring 640 is provided between the middle housing 610 and the left end cover housing 620. The first sealing ring 640 serves to seal the gap between the middle housing 610 and the left end cover housing 620, preventing sewage from entering the inner cavity of the waterproof housing 600 through the gap between the middle housing 610 and the left end cover housing 620.

[0037] The middle housing 610 is sleeved on the speed reducer 510 and the motor 520. That is, the speed reducer 510 and the motor 520 are placed within the middle housing 610 through the open end at the left end of the middle housing 610. The left end cover housing 620 is provided with a first left communication port 621. The output end of the speed reducer 510 passes through the first left communication port 621 and is connected to the left end of the housing 100. A left Teflon ring 800 is disposed between the housing 100 and the left end cover housing 620. The left Teflon ring 800 serves to reduce the friction between the housing 100 and the left end cover housing 620.

[0038] Refer to Figure 2, in some of these embodiments, the waterproof housing 600 further includes a right end cover housing 630 connected to the right end of the middle housing 610. That is, the right end of the middle housing 610 is in an open state, and the rotary drive mechanism 500 can be inserted into the middle housing 610 through the open end at the right end of the middle housing 610. That is, the speed reducer 510, the motor 520, and the brake 530 are placed inside the middle housing 610. A second sealing ring 650 is provided between the middle housing 610 and the right end cover housing 630. The second sealing ring 650 serves to seal the gap between the middle housing 610 and the right end cover housing 630, preventing sewage from entering the inner cavity of the waterproof housing 600 through the gap between the middle housing 610 and the right end cover housing 630.

[0039] The right end cover housing 630 is connected to and sleeved on the brake 530. The left end of the sleeve 700 is connected to the right end of the right end cover housing 630. The central hole of the sleeve 700 communicates with the inner cavity of the waterproof housing 600, so that the cable bundle 720 can extend outside the housing 100. A right Teflon ring 740 is sleeved on the sleeve 700. The right Teflon ring 740 is located at the connection between the sleeve 700 and the right end cover housing 630. The right Teflon ring 740 is similar to a bearing and serves to support and reduce friction, reducing the frictional force between the sleeve 700 and the right end cover housing 630.

[0040] Refer to Figure 2 , in some of these embodiments, the housing 100 includes an intermediate housing 110 and a left outer end cover 120 connected to the left end of the housing 100. That is, the left end of the intermediate housing 110 is in an open state, and the rotary drive mechanism 500 and the waterproof housing 600 can be placed inside the inner cavity of the intermediate housing 110 through the open end at the left end of the intermediate housing 110.

[0041] A third sealing ring 140 is provided between the intermediate housing 110 and the left outer end cover 120. The third sealing ring 140 serves to seal the gap between the intermediate housing 110 and the left outer end cover 120, preventing sewage from entering the inner cavity of the housing 100 through the gap between the intermediate housing 110 and the left outer end cover 120.

[0042] The connection end 200 is provided on the left outer end cover 120. The output end of the rotary drive mechanism 500 is connected to the left outer end cover 120. The rotary drive mechanism 500 drives the left outer end cover 120 to rotate, and the left outer end cover 120 drives the intermediate housing 110 to rotate.

[0043] Refer to Figure 2, in some of these embodiments, a second left communication port 210 is provided through the left outer end cover 120 and the connection end 200. The output end of the rotary drive mechanism 500 passes through the inner end of the second left communication port 210 and is connected to the inner wall of the second left communication port 210 by a fastener 220. By providing the second left communication port 210 and connecting the left outer end cover 120, the connection end 200 and the output end of the rotary drive mechanism 500 within the second left communication port 210 by the fastener 220, the left outer end cover 120, the connection end 200 and the output end of the rotary drive mechanism 500 can be quickly connected or disassembled. The output end of the rotary drive mechanism 500 can drive the left outer end cover 120 and the connection end 200 to rotate through the fastener 220

[0044] See Figure 1 and Figure 2 , the outer end of the second left communication port 210 is blocked by a plug 230. The plug 230 seals the second left communication port 210 to prevent sewage from entering the inner cavity of the housing 100 through the second left communication port 210. It can be understood that the plug 230 is detachably blocked in the second left communication port 210. Thus, the rotary drive mechanism 500 can be disassembled from the left outer end cover 120 by removing the plug 230 and then removing the fastener 220

[0045] It can be understood that a fourth sealing ring is provided between the plug 230 and the inner wall of the second left communication port 210. The fourth sealing ring further ensures the sealing performance of the second left communication port 210

[0046] In some of these embodiments, there is a stepped surface between the outer end and the inner end of the second left communication port 210. The fastener 220 includes a screw and a gasket sleeved on the screw. The screw is threadedly connected to the end face of the output end of the rotary drive mechanism 500. By tightening the screw, the screw forces the gasket to abut against the stepped surface, thereby connecting the output end of the rotary drive mechanism 500, the connection end 200, the screw and the gasket into a whole. The output end of the rotary drive mechanism 500 can drive the screw, the gasket, the connection end 200 and the left outer end cover 120 to rotate; by loosening the screw, the connection end 200 and the output end of the rotary drive mechanism 500 can be separated

[0047] Refer to Figure 2 , it can be understood that a convex ring is provided on the inner side surface of the left outer end cover 120. The convex ring surrounds the second left communication port 210 and passes through the first left communication port 621. A sixth sealing ring 240 is provided between the inner wall of the first left communication port 621 and the outer wall of the convex ring. The sixth sealing ring 240 seals the gap between the inner wall of the first left communication port 621 and the outer wall of the convex ring

[0048] In some of these embodiments, the housing 100 further includes a right outer end cap 130 connected to the right end of the housing 100. That is, the right end of the intermediate housing 110 is open, and the rotary drive mechanism 500 and the waterproof housing 600 can be placed in the inner cavity of the intermediate housing 110 through the opening at the right end of the intermediate housing 110.

[0049] Referring to Figure 2 , a fifth sealing ring 150 is provided between the intermediate housing 110 and the right outer end cap 130. The fifth sealing ring 150 serves to seal the gap between the intermediate housing 110 and the right outer end cap 130, preventing sewage from entering the inner cavity of the housing 100 through the gap between the intermediate housing 110 and the right outer end cap 130. The first right communication port 300 is provided on the right outer end cap 130.

[0050] It can be envisioned that the intermediate housing 110 can be connected to the left outer end cap 120 and the right outer end cap 130 by screws. The housing 100 is a split structure, facilitating the installation and disassembly of the rotary drive mechanism 500, the waterproof housing 600, and the sleeve 700. Similarly, the intermediate housing 610 can be connected to the left end cap housing 620 and the right end cap housing 630 by screws. The waterproof housing 600 is a split structure, facilitating the installation and disassembly of the speed reducer 510, the motor 520, and the brake 530.

[0051] In some of these embodiments, the rotary drive mechanism 500 includes a speed reducer 510, a motor 520, and a brake 530 connected in series from left to right. The housing 100 includes an intermediate housing 110 and a left outer end cap 120 connected to the left end of the housing 100. A third sealing ring 140 is provided between the intermediate housing 110 and the left outer end cap 120. The connection end 200 is provided on the left outer end cap 120, and the output end of the speed reducer 510 is connected to the left outer end cap 120.

[0052] The second left communication port 210 penetrates through the left outer end cap 120 and the connection end 200. The output end of the speed reducer 510 passes through the inner end of the second left communication port 210 and is connected to the inner wall of the second left communication port 210 by a fastener 220. The outer end of the second left communication port 210 is blocked by a plug 230.

[0053] There is a stepped surface between the outer end and the inner end of the second left communication port 210. The fastener 220 includes a screw and a gasket sleeved on the screw. The screw is threadedly connected to the end face of the output end of the speed reducer 510, and the screw forces the gasket to abut against the stepped surface.

[0054] In some of these embodiments, a left Teflon ring 800 is provided between the left outer end cap 120 and the left end cap housing 620.

[0055] Referring to Figure 2, in some of these embodiments, the right outer end cap 130 includes a first end cap and a second end cap. The first end cap is provided with a second right communication port. The second end cap is inserted through the second right communication port, and a seventh sealing ring is provided between the first end cap and the second end cap. Both the first end cap and the second end cap are in a flange shape, and the first end cap and the second end cap are connected together by screws. The first right communication port 300 is provided on the second end cap, and the mechanical sealing ring 710 is sleeved on the inner end of the sleeve 700.

[0056] It can be understood that an eighth sealing ring 750 is provided between the outer end of the sleeve 700 and the inner wall of the first right communication port 300. The inner end of the sleeve 700 is provided with a connecting portion, the diameter of the connecting portion is larger than the outer diameter of the sleeve 700, and the connecting portion is connected to the right end cap housing 630. The right Teflon ring 740 is sleeved on the connecting portion. The connecting portion is a flange.

[0057] In some of these embodiments, the cross-sectional shape of the outer shell 100 is circular, and the stirring member 400 is detachably connected to the surface of the outer shell 100, such as by screw connection. All the stirring members 400 are arranged in several rows on the surface of the outer shell 100, and the direction of each row is the same as the axial direction of the outer shell 100.

[0058] In another embodiment, the cross-sectional shape of the outer shell 100 is polygonal, such as pentagon, hexagon, heptagon, octagon, etc. Refer to Figure 3 , in another embodiment, the cross-sectional shape of the outer shell 100 is hexagonal. All the stirring members 400 are divided into several rows, the direction of each row is the same as the axial direction of the outer shell 100, and each row of stirring members 400 is arranged on the edges of the outer shell 100.

[0059] It can be understood that the stirring member 400 is in a nail shape, the tip of the stirring member 400 is arranged in a direction away from the outer shell 100, and the tip of the stirring member 400 has a better effect of breaking the silt.

[0060] The present invention discloses a stirring head, which includes a transfer rod and two of the above-mentioned dredging and stirring mechanisms. The two connecting ends are coaxially arranged and are both fixedly connected to the transfer rod, and the transfer rod is used for connecting to an external device.

[0061] It has at least the following beneficial effects: The stirring head has all the beneficial effects brought by the dredging and stirring mechanism in the above embodiments, and by respectively controlling the forward and reverse rotations of the rotation driving mechanism, the forward movement, backward movement and turning of the stirring head can be realized.

[0062] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered to be within the scope described in this specification.

[0063] Certainly, the present invention is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. Desilting and stirring mechanism, characterized in that, Comprising: A housing, with a connection end and a first right communication port respectively provided at the left and right ends of the housing. The connection end, the first right communication port, and the central axis of the housing are coaxial. The connection end is used for rotatably connecting with an external device, and multiple stirring members are provided on the outer surface of the housing; A rotation driving mechanism, with the output end of the rotation driving mechanism connected to the left end of the housing; A waterproof housing, fixedly connected to the rotation driving mechanism and covering the rotation driving mechanism. A left Teflon ring is provided between the left end of the waterproof housing and the housing; A filter screen, covering the outside of the waterproof housing, and the filter screen is used for filtering particulate impurities; A sleeve, with the left end of the sleeve connected to the right end of the waterproof housing. The right end of the sleeve passes through the first right communication port and extends outside the housing. The right end of the sleeve is used for fixedly connecting with an external device. A mechanical seal is provided between the sleeve and the inner wall of the first right communication port. A cable bundle passes through the central hole of the sleeve. One end of the cable bundle is electrically connected to the wiring terminal of the rotation driving mechanism. A sheath is provided between the cable bundle and the inner wall of the sleeve. The other end of the cable bundle is used for electrically connecting with an external controller, and the controller is used for controlling the start and stop of the rotation driving mechanism.

2. The dredging and stirring mechanism according to claim 1, characterized in that: Waterproof glue is filled between the waterproof housing and the rotation driving mechanism and / or between the cable bundle and the sleeve.

3. The dredging and stirring mechanism according to claim 1, characterized in that: The rotation driving mechanism includes a reducer, a motor, and a brake connected in series from left to right in sequence. The output end of the reducer is connected to the left end of the housing.

4. The dredging and stirring mechanism according to claim 3, characterized in that: The waterproof housing includes a middle housing and a left end cover shell connected to the left end of the middle housing. A first sealing ring is provided between the middle housing and the left end cover shell. The middle housing sleeves on the reducer and the motor. The left end cover shell is provided with a first left communication port. The output end of the reducer passes through the first left communication port and is connected to the left end of the housing. The left Teflon ring is provided between the housing and the left end cover shell.

5. The dredging and stirring mechanism according to claim 4, characterized in that: The waterproof housing further includes a right end cover shell connected to the right end of the middle housing. A second sealing ring is provided between the middle housing and the right end cover shell. The right end cover shell is connected to the brake and sleeves on the brake. The left end of the sleeve is connected to the right end of the right end cover shell. A right Teflon ring is sleeved on the sleeve, and the right Teflon ring is at the connection between the sleeve and the right end cover shell.

6. The dredging and stirring mechanism according to claim 1, characterized in that: The housing includes a middle shell and a left outer end cover connected to the left end of the housing. A third sealing ring is provided between the middle shell and the left outer end cover. The connection end is provided on the left outer end cover. The output end of the rotation driving mechanism is connected to the left outer end cover.

7. The dredging and stirring mechanism according to claim 6, characterized in that: A second left communication port is penetrated through the left outer end cover and the connection end. The output end of the rotation driving mechanism passes through the inner end of the second left communication port and is connected to the inner wall of the second left communication port through a fastener. The outer end of the second left communication port is blocked by a plug.

8. The dredging and stirring mechanism according to claim 7, wherein: There is a stepped surface between the outer end and the inner end of the second left communication port. The fastener includes a screw and a gasket sleeved on the screw. The screw is threadedly connected to the end surface of the output end of the rotary drive mechanism, and the screw forces the gasket to abut against the stepped surface.

9. The dredging and stirring mechanism according to claim 6, characterized in that: The housing further includes a right outer end cover connected to the right end of the intermediate housing. A fifth sealing ring is provided between the intermediate housing and the right outer end cover. The first right communication port is provided on the right outer end cover.

10. Stirring head, characterized in that: It includes a transfer rod and two dredging and stirring mechanisms according to any one of claims 1 to 9 above. The right end heads of the two sleeves are coaxially arranged and are both fixedly connected to the transfer rod. The transfer rod is used to connect to an external device.

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