Secondary sedimentation tank cleaning device

Abstract

The utility model discloses a secondary sedimentation tank cleaning device which is characterized in that an annular rotating frame and an overflow weir located on the periphery of the rotating frame are arranged in a secondary sedimentation tank, the rotating frame rotates around the axial direction of the rotating frame in response to driving force, and the cleaning device comprises a connecting arm, a cleaning box, a first rotating shaft, a rolling brush and a driving assembly, the connecting arm extends in the radial direction of the rotating frame and is arranged on the periphery of the rotating frame. The connecting arm is located above the overflow weir. The cleaning box is fixed to the side, facing the overflow weir, of the connecting arm. The first rotating shaft penetrates through the side, facing the overflow weir, of the cleaning box and is rotationally connected with the cleaning box. The first rotating shaft has the freedom degree of rotating around the axial direction of the first rotating shaft. The rolling brush sleeves one end, outside the cleaning box, of the first rotating shaft and abuts against the overflow weir; the driving assembly is located in the cleaning box and connected with the first rotating shaft. The driving assembly provides rotating transmission force for the first rotating shaft. The secondary sedimentation tank cleaning device is high in working efficiency and free of potential safety hazards.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning devices, and in particular to a secondary sedimentation tank cleaning device. Background Art

[0002] The secondary sedimentation tank is an important part of the sewage treatment system. Its main function is to settle the sludge at the bottom of the tank, thereby achieving mud-water separation, clarifying, concentrating and returning the activated sludge to the mixed liquid. The effluent from the secondary sedimentation tank often needs to flow out to the drainage channel through the overflow weir. Over time, it is easy to cause moss to form on the overflow weir, which needs to be cleaned regularly.

[0003] The existing cleaning method mainly involves manually cleaning the overflow weir in the pool, which is not only time-consuming and labor-intensive, but also poses a safety hazard. Utility Model Content

[0004] The main purpose of the present application is to provide a secondary sedimentation tank cleaning device, which aims to solve the problem that manual cleaning of the overflow weir is not only time-consuming and labor-intensive, but also poses a safety hazard.

[0005] To achieve the above-mentioned purpose, the present application provides a secondary sedimentation tank cleaning device, which has an annular rotating frame and an overflow weir located on the periphery of the rotating frame. The rotating frame rotates around its own axis in response to a driving force. The cleaning device includes a connecting arm, a cleaning box, a first rotating shaft, a roller brush and a driving assembly, wherein the connecting arm extends along the radial direction of the rotating frame and is arranged on the outer periphery of the rotating frame, and the connecting arm is located above the overflow weir; the cleaning box is fixed to the side of the connecting arm facing the overflow weir; the first rotating shaft passes through the side of the cleaning box facing the overflow weir and is rotatably connected to the cleaning box, and the first rotating shaft has the freedom to rotate around its own axis; the roller brush is sleeved on one end of the first rotating shaft located outside the cleaning box, and the roller brush contacts the overflow weir; the driving assembly is located in the cleaning box and connected to the first rotating shaft, and the driving assembly provides rotational transmission force for the first rotating shaft.

[0006] Optionally, there are two first rotating shafts and they are arranged in sequence in the radial direction of the rotating frame, the minimum distance between the two first rotating shafts at one end located inside the cleaning box is a, the minimum distance between the two first rotating shafts at one end located outside the cleaning box is b, and b>a; wherein, each first rotating shaft is provided with a roller brush, the two roller brushes respectively contact the inner periphery and the outer periphery of the overflow weir, and the driving assembly is respectively connected to the two first rotating shafts.

[0007] Optionally, the driving assembly includes a motor, two second rotating shafts, a driving gear and two driven gears, wherein the motor is fixed in the cleaning box, and the axial direction of the output shaft of the motor is the same as the axial direction of the rotating frame; the two second rotating shafts are rotatably connected in the cleaning box and have the freedom to rotate around their own axes, the axial direction of the second rotating shafts is the same as the axial direction of the output shaft of the motor, the two second rotating shafts correspond one-to-one to the two first rotating shafts and are connected to the corresponding first rotating shafts through universal couplings; the driving gear is sleeved on the outer periphery of the output shaft of the motor; the two driven gears correspond one-to-one to the two second rotating shafts and are sleeved on the outer periphery of the corresponding second rotating shafts, and the two driven gears are meshed with the driving gear.

[0008] Optionally, the second rotating shaft is located at an end of the corresponding first rotating shaft away from the corresponding roller brush.

[0009] Optionally, the driving assembly also includes a support plate, which is fixed to the inner side of the cleaning box, and the thickness direction of the support plate is the same as the axial direction of the second rotating shaft; wherein the two second rotating shafts both pass through the support plate and are rotatably connected to the support plate.

[0010] Optionally, the cleaning device also includes a water pump, a diverter pipe, multiple nozzles and a water inlet pipe, wherein the water pump has a water inlet and a water outlet, and the water pump is fixed in the cleaning tank; the axial direction of the diverter pipe is the same as the radial direction of the rotating frame and is fixed to the side of the cleaning tank facing the overflow weir, and the diverter pipe is connected to the water outlet of the water pump; multiple nozzles are arranged at intervals on the outer periphery of the diverter pipe in the axial direction of the diverter pipe, and each nozzle faces the overflow weir; the water inlet pipe is connected to the water inlet of the water pump and is immersed in the clear liquid in the secondary sedimentation tank.

[0011] Optionally, the secondary sedimentation tank also has a first side wall located outside the overflow weir, and the connecting arm is located above the first side wall; the cleaning device also includes two first rollers, which are spaced apart on the side of the connecting arm facing the first side wall in the extension direction of the connecting arm, and the first rollers have the freedom to rotate around the extension direction of the connecting arm, and the outer periphery of the first roller is in contact with the first side wall.

[0012] Optionally, the second sedimentation tank also has a second side wall located outside the first side wall; the connecting arm includes a first connecting rod, a second connecting rod, a protrusion and a spring, wherein the first connecting rod is fixed to the outer periphery of the rotating frame, and a groove is provided at the end of the first connecting rod away from the rotating frame; the second connecting rod is provided at the end of the first connecting rod away from the rotating frame, and the end of the second connecting rod away from the first connecting rod is in contact with the inner periphery of the second side wall, wherein the second connecting rod fixes the cleaning box, and the second connecting rod is located above the first side wall; the protrusion is fixed to an end of the second connecting rod close to the first connecting rod, the protrusion is slidably matched with the groove, and the protrusion has the freedom to slide radially along the rotating frame; the spring extends radially along the rotating frame and is located in the groove, and the two ends of the spring are respectively connected to the protrusion and the first connecting rod.

[0013] Optionally, the connecting arm further comprises a second roller, which is arranged at an end of the second connecting rod away from the first connecting rod, has the freedom to rotate around the axial direction of the rotating frame, and the outer periphery of the second roller abuts against the inner periphery of the second side wall.

[0014] Optionally, the secondary sedimentation tank also has a traveling frame, which is fixed on the top of the second side wall; the cleaning device also includes an annular busbar, a connector and a current collector, wherein the annular busbar is fixed on the side of the rotating frame facing the traveling frame, and the annular busbar and the rotating frame have the same axial direction; the connector is fixed to the outer circumference of the annular busbar, and the connector electrically connects the annular busbar and electrical equipment on the cleaning device respectively; the current collector is slidably fitted on the inner circumference of the annular busbar, the current collector has the freedom to slide circumferentially along the annular busbar, the current collector is fixed to the traveling frame, and the current collector electrically connects the annular busbar and an external power supply respectively.

[0015] The embodiment of the present application proposes a secondary sedimentation tank cleaning device, in which the rotating frame drives the connecting arm to rotate when it rotates, and the connecting arm drives the cleaning box to rotate circumferentially along the overflow weir when it rotates, and the driving component inside the cleaning box drives the first rotating shaft to rotate axially around the first rotating shaft, and the first rotating shaft further drives the roller brush to rotate axially around the first rotating shaft, and the overflow weir is scrubbed by the roller brush, and the cleaning box drives the roller brush to move circumferentially along the overflow weir, and finally cleans the moss on the overflow weir, with high working efficiency and no safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the cross-sectional structure of a secondary sedimentation tank when a secondary sedimentation tank cleaning device provided in an embodiment of the present application is used;

[0017] Figure 2 for Figure 1 A magnified view of the structure at center;

[0018] Figure 3 A schematic cross-sectional structure diagram of a cleaning tank of a secondary sedimentation tank cleaning device provided in an embodiment of the present application;

[0019] Figure 4 for Figure 1 Enlarged view of the structure at point B in the middle.

[0020] In the figure: 01, rotating frame; 02, overflow weir; 03, first side wall; 04, second side wall; 05, walking frame; 1, connecting arm; 11, first connecting rod; 111, groove; 12, second connecting rod; 13, protrusion; 14, spring; 15, second roller; 2, cleaning box; 3, first rotating shaft; 4, roller brush; 5, driving assembly; 51, motor; 52, second rotating shaft; 53, driving gear; 54, driven gear; 55, support plate; 61, water pump; 62, shunt pipe; 63, nozzle; 7, first roller; 81, annular busbar; 82, connector; 83, collector.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] refer to Figure 1 to Figure 4, an embodiment of the present application provides a secondary sedimentation tank cleaning device, wherein the secondary sedimentation tank is provided with an annular rotating frame 01 and an overflow weir 02 located on the periphery of the rotating frame 01, the rotating frame 01 rotates around its own axis in response to a driving force, and the cleaning device may include a connecting arm 1, a cleaning box 2, a first rotating shaft 3, a roller brush 4 and a driving assembly 5, wherein the connecting arm 1 extends along the radial direction of the rotating frame 01 and is arranged on the outer periphery of the rotating frame 01, and the connecting arm 1 is located above the overflow weir 02; the cleaning box 2 is fixed to the side of the connecting arm 1 facing the overflow weir 02; the first rotating shaft 3 passes through the side of the cleaning box 2 facing the overflow weir 02 and is rotatably connected to the cleaning box 2, and the first rotating shaft 3 has the freedom to rotate around its own axis; the roller brush 4 is sleeved on one end of the first rotating shaft 3 located outside the cleaning box 2, and the roller brush 4 contacts the overflow weir 02; the driving assembly 5 is located in the cleaning box 2 and connected to the first rotating shaft 3, and the driving assembly 5 provides a rotation transmission force for the first rotating shaft 3.

[0027] The embodiment of the present application proposes a secondary sedimentation tank cleaning device, in which the rotating frame 01 drives the connecting arm 1 to rotate when it rotates, and the connecting arm 1 drives the cleaning box 2 to rotate circumferentially along the overflow weir 02 when it rotates, and the driving component 5 inside the cleaning box 2 drives the first rotating shaft 3 to rotate axially around the first rotating shaft 3, and the first rotating shaft 3 further drives the roller brush 4 to rotate axially around the first rotating shaft 3, and the overflow weir 02 is brushed by the roller brush 4, and the cleaning box 2 drives the roller brush 4 to move circumferentially along the overflow weir 02, and finally cleans the moss on the overflow weir 02, with high working efficiency and no safety hazards.

[0028] It should be noted that the rotation of the rotating frame 01 drives the scraper installed at the bottom of the rotating frame 01 to rotate to clean the sludge at the bottom of the secondary sedimentation tank, which is a commonly used technical solution in the prior art. Therefore, the specific rotation of the rotating frame 01 is not described in detail here.

[0029] refer to Figure 3 In an exemplary embodiment, there are two first rotating shafts 3 and they are arranged in sequence in the radial direction of the rotating frame 01, the minimum distance between the two first rotating shafts 3 at one end inside the cleaning box 2 is a, the minimum distance between the two first rotating shafts 3 at one end outside the cleaning box 2 is b, and b>a; wherein, each first rotating shaft 3 is provided with a roller brush 4, the two roller brushes 4 respectively contact the inner periphery and the outer periphery of the overflow weir 02, and the driving assembly 5 is respectively connected to the two first rotating shafts 3.

[0030] Specifically, a is the minimum distance between all points on one end of the two first rotating shafts 3 located inside the cleaning box 2, and b is the minimum distance between all points on one end of the two first rotating shafts 3 located outside the cleaning box 2. When b>a, there is an angle between the axial directions of the two first rotating shafts 3, so that there is an angle between the two roller brushes 4, and the outer peripheral height of the overflow weir 02 is lower than the inner peripheral height, that is, the connection between the outer periphery of the overflow weir 02 and the top thereof is an inclined surface. When there is an angle between the two roller brushes 4, the roller brush 4 can facilitate cleaning of moss on the inclined surface, and the cleaning effect is better.

[0031] It should be understood that there are two first rotating shafts 3 and they are arranged in sequence in the radial direction of the rotating frame 01 , so that the two roller brushes 4 are arranged in sequence in the radial direction of the rotating frame 01 , and the two roller brushes 4 are respectively close to the inner periphery and the outer periphery of the overflow weir 02 .

[0032] Furthermore, the number of roller brushes 4 can be appropriately increased to ensure that at least one roller brush 4 is provided at the inner periphery and the outer periphery of the overflow weir 02 .

[0033] The angle between the axial direction of each of the first rotating shafts 3 and the gravity direction may be 10°, 11°, 12°, 13°, 14° and 15°.

[0034] refer to Figure 3 In an exemplary embodiment, the driving assembly 5 may include a motor 51, two second rotating shafts 52, a driving gear 53 and two driven gears 54, wherein the motor 51 is fixed in the cleaning box 2, and the axial direction of the output shaft of the motor 51 is the same as the axial direction of the rotating frame 01; the two second rotating shafts 52 are both rotatably connected in the cleaning box 2 and have the freedom to rotate around their own axes, and the axial direction of the second rotating shafts 52 is the same as the axial direction of the output shaft of the motor 51, and the two second rotating shafts 52 correspond one-to-one to the two first rotating shafts 3 and are connected to the corresponding first rotating shafts 3 through universal couplings; the driving gear 53 is sleeved on the outer periphery of the output shaft of the motor 51; the two driven gears 54 correspond one-to-one to the two second rotating shafts 52 and are sleeved on the outer periphery of the corresponding second rotating shafts 52, and the two driven gears 54 are both meshed with the driving gear 53; the second rotating shaft 52 is located at the end of the corresponding first rotating shaft 3 away from the corresponding roller brush 4.

[0035] Specifically, when the output shaft of the motor 51 rotates, it drives the driving gear 53 to rotate around its own axial direction. When the driving gear 53 rotates, it further drives the two driven gears 54 to rotate around the axial direction of the corresponding second rotating shaft 52. When the two second rotating shafts 52 rotate, they drive the corresponding first rotating shaft 3 to rotate around the axial direction of the first rotating shaft 3 through the corresponding universal coupling, and finally drive the corresponding roller brush 4 to rotate to brush the overflow weir 02.

[0036] Furthermore, when the second rotating shaft 52 is located at the end of the corresponding first rotating shaft 3 away from the corresponding roller brush 4, after the second rotating shaft 52 is connected to the first rotating shaft 3 through the universal coupling, the angle between the second rotating shaft 52 and the first rotating shaft 3 is the largest, that is, the angle between the second rotating shaft 52 and the first rotating shaft 3 is close to 180°. At this time, the transmission between the first rotating shaft 3 and the second rotating shaft 52 through the universal coupling is more stable.

[0037] refer to Figure 3In an exemplary embodiment, the driving assembly 5 may further include a support plate 55, which is fixed to the inner side of the cleaning box 2, and the thickness direction of the support plate 55 is the same as the axial direction of the second rotating shaft 52; wherein both second rotating shafts 52 pass through the support plate 55 and are rotatably connected to the support plate 55.

[0038] Specifically, when the two second rotating shafts 52 both penetrate the support plate 55 and are rotatably connected to the support plate 55, both ends of each second rotating shaft 52 are supported by the cleaning box 2 and the support plate 55 respectively, and the rotation of the cleaning box 2 is more stable.

[0039] like Figure 3 As shown, further, the motor 51, the driving gear 53 and the driven gear 54 can all be arranged on the side of the support plate 55 away from the first rotating shaft 3, so that the load on the second rotating shaft 52 is located between the two ends, and both ends are supported by other components, so that the rotation of the second rotating shaft 52 is more stable.

[0040] refer to Figure 3 In an exemplary embodiment, the cleaning device may further include a water pump 61, a diverter pipe 62, a plurality of nozzles 63 and a water inlet pipe, wherein the water pump 61 has a water inlet and a water outlet, and the water pump 61 is fixed in the cleaning tank 2; the axial direction of the diverter pipe 62 is the same as the radial direction of the rotating frame 01 and is fixed to the side of the cleaning tank 2 facing the overflow weir 02, and the diverter pipe 62 is connected to the water outlet of the water pump 61; a plurality of nozzles 63 are arranged at intervals on the outer periphery of the diverter pipe 62 in the axial direction of the diverter pipe 62, and each nozzle 63 faces the overflow weir 02; the water inlet pipe is connected to the water inlet of the water pump 61 and is immersed in the clear liquid in the secondary sedimentation tank.

[0041] Specifically, the water pump 61 pumps water from the water inlet pipe to the diversion pipe 62, and then sprays water from the nozzle 63 on the outer periphery of the diversion pipe 62 to flush the overflow weir 02 and wash away the moss brushed off by the roller brush 4, thereby achieving a better cleaning effect on the overflow weir 02.

[0042] Among them, the water inlet pipe can pass through the cleaning box 2 and be immersed in the clear liquid on the secondary sedimentation tank, so as to extract the clear liquid as the water source for flushing the overflow weir 02. A water storage compartment can also be set inside the cleaning box 2, and the water inlet pipe is connected to the water storage compartment to provide water source for flushing the overflow weir 02.

[0043] refer to Figure 2 In an exemplary embodiment, the secondary sedimentation tank also has a first side wall 03 located outside the overflow weir 02, and the connecting arm 1 is located above the first side wall 03; the cleaning device may also include two first rollers 7, and the two first rollers 7 are arranged at intervals on the side of the connecting arm 1 facing the first side wall 03 in the extension direction of the connecting arm 1. The first rollers 7 have the freedom to rotate around the extension direction of the connecting arm 1, and the outer periphery of the first rollers 7 is in contact with the first side wall 03.

[0044] Specifically, when the rotating frame 01 drives the connecting arm 1 to rotate around the axial direction of the rotating frame 01, the two first rollers 7 roll along the axial direction of the first side wall 03. During the process, the two first rollers 7 support the outer periphery of the connecting arm 1, and the rotating frame 01 supports one end of the connecting arm 1. The first side wall 03 is located on the periphery of the overflow weir 02, that is, the first roller 7 is located on the side of the cleaning box 2 away from the rotating frame 01. In this way, the connecting arm 1 is jointly supported by the rotating frame 01 and the first roller 7, and the rotation process of the connecting arm 1 is more stable; at the same time, the cleaning box 2 is located between the rotating frame 01 and the first roller 7, which further makes the rotation process of the connecting arm 1 more stable.

[0045] It should be noted that the secondary sedimentation tank may also be an eccentric structure, that is, the overflow weir 02, the first side wall 03 and the second side wall 04 are not regular circular structures, but a structure similar to an elliptical ring. At this time, the distance between the rotating frame 01 and the first side wall 03 is not the same, and the two first rollers 7 are spaced apart in the extension direction of the connecting arm 1, which can ensure that when the connecting arm 1 rotates, the outer periphery of the first roller 7 always contacts the first side wall 03 to support the connecting arm 1. The specific number of the first rollers 7 can be adjusted according to the specific eccentricity of the secondary sedimentation tank to ensure that the distance between the rotating frame 01 and each first roller 7 is between the minimum and maximum values, including the distance between the rotating frame 01 and the first side wall 03.

[0046] refer to Figure 1 and Figure 2 In an exemplary embodiment, the second sedimentation tank further has a second side wall 04 located outside the first side wall 03; the connecting arm 1 may include a first connecting rod 11, a second connecting rod 12, a protrusion 13 and a spring 14, wherein the first connecting rod 11 is fixed to the outer periphery of the rotating frame 01, and a groove 111 is provided at one end of the first connecting rod 11 away from the rotating frame 01; the second connecting rod 12 is provided at one end of the first connecting rod 11 away from the rotating frame 01, and one end of the second connecting rod 12 away from the first connecting rod 11 conflicts with the inner periphery of the second side wall 04, wherein the second connecting rod 12 fixes the cleaning box 2, and the second connecting rod 12 is located at the first side wall 03 Above; the protrusion 13 is fixed to one end of the second connecting rod 12 close to the first connecting rod 11, the protrusion 13 is slidably matched with the groove 111, and the protrusion 13 has the freedom to slide along the radial direction of the rotating frame 01; the spring 14 extends along the radial direction of the rotating frame 01 and is located in the groove 111, and the two ends of the spring 14 are respectively connected to the protrusion 13 and the first connecting rod 11; the connecting arm 1 can also include a second roller 15, the second roller 15 is arranged at one end of the second connecting rod 12 away from the first connecting rod 11, the second roller 15 has the freedom to rotate around the axial direction of the rotating frame 01, and the outer periphery of the second roller 15 is in contact with the inner periphery of the second side wall 04.

[0047] Specifically, when the second sedimentation tank is an eccentric structure, the distance between the second side wall 04 and the first side wall 03 and the overflow weir 02 remains unchanged. When the first connecting rod 11 and the second connecting rod 12 rotate, the spring 14 pushes the protrusion 13 and the second connecting rod 12, so that the second connecting rod 12 always contacts the inner periphery of the second side wall 04. At this time, the distance between the end of the second connecting rod 12 close to the second side wall 04 and the overflow weir 02 and the first side wall 03 remains unchanged. The cleaning box 2 and the first roller 7 are arranged on the second connecting rod 12. When the second sedimentation tank is eccentric, the cleaning box 2 can always move along the circumference of the overflow weir 02, and the first roller 7 can always contact the first side wall 03.

[0048] Furthermore, the second connecting rod 12 contacts the inner circumference of the second side wall 04 through the outer circumference of the second roller 15, which effectively reduces the friction between the second connecting rod 12 and the second side wall 04 when rotating, thereby preventing component wear.

[0049] refer to Figure 4 In an exemplary embodiment, the secondary sedimentation tank further has a traveling frame 05, which is fixed on the upper side of the second side wall 04; the cleaning device may further include an annular busbar 81, a connector 82 and a current collector 83, wherein the annular busbar 81 is fixed to the side of the rotating frame 01 facing the traveling frame 05, and the annular busbar 81 has the same axial direction as the rotating frame 01; the connector 82 is fixed to the outer periphery of the annular busbar 81, and the connector 82 electrically connects the annular busbar 81 and the electrical equipment on the cleaning device respectively; the current collector 83 is slidably fitted on the inner periphery of the annular busbar 81, and the current collector 83 has the freedom to slide along the circumferential direction of the annular busbar 81, and the current collector 83 is fixed to the traveling frame 05, and the current collector 83 electrically connects the annular busbar 81 and the external power supply respectively.

[0050] Specifically, when the rotating frame 01 drives the first connecting rod 11 and the second connecting rod 12 to rotate, the annular busbar 81 and the connector 82 rotate synchronously, and the connector 82 is electrically connected to the motor 51 and the water pump 61 through the first cable, and the first cable can be wrapped around the first connecting rod 11 and the second connecting rod 12, and the annular busbar 81, the connector 82, the first cable, the motor 51 and the water pump 61 are relatively stationary; at the same time, the current collector 83 is fixed to the traveling frame 05, and when the annular busbar 81 rotates, the current collector 83 and the annular busbar 81 slide relative to each other, that is, the current collector 83 slides on the inner periphery of the annular busbar 81 along the circumference of the annular busbar 81, and the current collector 83 is connected to the external power supply through the second cable, and the second cable can be fixed to the traveling frame 05 and connected to the external power supply. During the entire working process, the first cable and the second cable will not be entangled due to the rotation of the first connecting rod 11 and the second connecting rod 12, and it is more convenient to use.

[0051] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A secondary sedimentation tank cleaning device, characterized in that: The secondary sedimentation tank is provided with an annular rotating frame (01) and an overflow weir (02) located on the periphery of the rotating frame (01), wherein the rotating frame (01) rotates around its own axis in response to a driving force, and the cleaning device comprises: A connecting arm (1) extending in a radial direction of the rotating frame (01) and arranged on the outer periphery of the rotating frame (01), wherein the connecting arm (1) is located above the overflow weir (02); A cleaning box (2) is fixed to a side of the connecting arm (1) facing the overflow weir (02); A first rotating shaft (3) passes through a side of the cleaning box (2) facing the overflow weir (02) and is rotationally connected to the cleaning box (2), wherein the first rotating shaft (3) has the freedom to rotate around its own axial direction; A roller brush (4) is sleeved on one end of the first rotating shaft (3) located outside the cleaning box (2), and the roller brush (4) abuts against the overflow weir (02); A driving assembly (5) is located in the cleaning box (2) and connected to the first rotating shaft (3), and the driving assembly (5) provides a rotational transmission force for the first rotating shaft (3).

2. The secondary sedimentation tank cleaning device according to claim 1, characterized in that: There are two first rotating shafts (3) and they are arranged in sequence in the radial direction of the rotating frame (01); the minimum distance between the ends of the two first rotating shafts (3) located inside the cleaning box (2) is a, and the minimum distance between the ends of the two first rotating shafts (3) located outside the cleaning box (2) is b, and b>a; Wherein, each of the first rotating shafts (3) is provided with a roller brush (4), the two roller brushes (4) respectively abut against the inner periphery and the outer periphery of the overflow weir (02), and the driving assembly (5) is respectively connected to the two first rotating shafts (3).

3. The secondary sedimentation tank cleaning device according to claim 2, characterized in that: The driving assembly (5) comprises: A motor (51) is fixed in the cleaning box (2), and the axial direction of the output shaft of the motor (51) is the same as the axial direction of the rotating frame (01); Two second rotating shafts (52) are both rotatably connected to the cleaning box (2) and have the freedom to rotate around their own axes. The axial direction of the second rotating shaft (52) is the same as the axial direction of the output shaft of the motor (51). The two second rotating shafts (52) correspond to the two first rotating shafts (3) one by one and are connected to the corresponding first rotating shafts (3) via a universal coupling. A driving gear (53) sleeved on the outer circumference of the output shaft of the motor (51); The two driven gears (54) correspond to the two second rotating shafts (52) one by one and are sleeved on the outer peripheries of the corresponding second rotating shafts (52). The two driven gears (54) are meshed with the driving gear (53).

4. The secondary sedimentation tank cleaning device according to claim 3, characterized in that: The second rotating shaft (52) is located at an end of the first rotating shaft (3) away from the roller brush (4).

5. The secondary sedimentation tank cleaning device according to claim 3, characterized in that: The driving assembly (5) further comprises: A support plate (55) is fixed to the inner side of the cleaning box (2), and the thickness direction of the support plate (55) is the same as the axial direction of the second rotating shaft (52); Wherein, the two second rotating shafts (52) both penetrate the support plate (55) and are rotatably connected to the support plate (55).

6. The secondary sedimentation tank cleaning device according to claim 1, characterized in that: The cleaning device also includes: A water pump (61) having a water inlet and a water outlet, wherein the water pump (61) is fixed in the cleaning box (2); A diverter pipe (62), the axial direction of which is the same as the radial direction of the rotating frame (01) and is fixed to a side of the cleaning box (2) facing the overflow weir (02), the diverter pipe (62) being in communication with a water outlet of the water pump (61); a plurality of nozzles (63) arranged at intervals on the outer periphery of the diverter pipe (62) in the axial direction of the diverter pipe (62), each of the nozzles (63) facing the overflow weir (02); A water inlet pipe is connected to the water inlet of the water pump (61) and immersed in the clear liquid in the secondary sedimentation tank.

7. The secondary sedimentation tank cleaning device according to claim 1, characterized in that: The secondary sedimentation tank further comprises a first side wall (03) located outside the overflow weir (02), and the connecting arm (1) is located above the first side wall (03); the cleaning device further comprises: Two first rollers (7) are arranged at intervals on a side of the connecting arm (1) facing the first side wall (03) in the extension direction of the connecting arm (1); the first rollers (7) have the freedom to rotate around the extension direction of the connecting arm (1); and the outer periphery of the first rollers (7) abuts against the first side wall (03).

8. The secondary sedimentation tank cleaning device according to claim 7, characterized in that: The secondary sedimentation tank also has a second side wall (04) located outside the first side wall (03); the connecting arm (1) comprises: A first connecting rod (11) is fixed to the outer periphery of the rotating frame (01), and a groove (111) is provided at one end of the first connecting rod (11) away from the rotating frame (01); A second connecting rod (12) is arranged at one end of the first connecting rod (11) away from the rotating frame (01), and one end of the second connecting rod (12) away from the first connecting rod (11) abuts against the inner periphery of the second side wall (04), wherein the second connecting rod (12) fixes the cleaning box (2), and the second connecting rod (12) is located above the first side wall (03); A raised portion (13) is fixed to an end of the second connecting rod (12) close to the first connecting rod (11), the raised portion (13) is slidably matched with the groove (111), and the raised portion (13) has the freedom to slide along the radial direction of the rotating frame (01); A spring (14) extends radially along the rotating frame (01) and is located in the groove (111); two ends of the spring (14) are respectively connected to the protruding portion (13) and the first connecting rod (11).

9. The secondary sedimentation tank cleaning device according to claim 8, characterized in that: The connecting arm (1) further comprises: The second roller (15) is arranged at one end of the second connecting rod (12) away from the first connecting rod (11), and the second roller (15) has the freedom to rotate around the axial direction of the rotating frame (01), and the outer periphery of the second roller (15) is in contact with the inner periphery of the second side wall (04).

10. The secondary sedimentation tank cleaning device according to claim 8, characterized in that: The secondary sedimentation tank further comprises a traveling frame (05), wherein the traveling frame (05) is fixed above the second side wall (04); the cleaning device further comprises: An annular busbar (81) is fixed to a side of the rotating frame (01) facing the traveling frame (05), and the annular busbar (81) and the rotating frame (01) have the same axial direction; A connector (82) is fixed to the outer periphery of the annular busbar (81), and the connector (82) electrically connects the annular busbar (81) and the electrical equipment on the cleaning device; The current collector (83) is slidably fitted on the inner circumference of the annular busbar (81), and the current collector (83) has the freedom to slide along the circumference of the annular busbar (81). The current collector (83) is fixed to the running frame (05), and the current collector (83) is electrically connected to the annular busbar (81) and an external power source.

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