An adaptive sewer pipe unit and a sewer device

Abstract

The utility model belongs to the technical field of pool cleaning tool, concretely relates to a self -adaptation formula dirt suction pipe unit and dirt suction equipment. Dirt suction equipment includes dirt suction main part and dirt suction pipe unit, dirt suction pipe unit, include: a plurality of dirt suction pipes, every dirt suction pipe bottom is provided with at least one dirt suction mouth, and at least one dirt suction pipe joint is installed between adjacent two dirt suction pipes, and has the first connecting portion and the second connecting portion, and the outer side wall of first connecting portion or / and second connecting portion forms the spherical face, and the dirt suction pipe is rotationally arranged on the spherical face through the pin, so that the dirt suction pipe can relatively rotate with the dirt suction pipe joint. The utility model's dirt suction pipe can take the pin as the rotation center and swing along the spherical face to a certain angle, thereby changing the installation angle between the two adjacent dirt suction pipes, adapting the cleaning surface shape with the relatively big inclination change, thereby increasing the dirt suction capacity of dirt suction pipe unit.

Description

Technical Field

[0001] This utility model belongs to the technical field of pool cleaning tools, specifically relating to an adaptive suction pipe unit and suction equipment. Background Technology

[0002] Currently, manual cleaning is commonly used in the cleaning of pools, fishponds, and other similar structures. This involves first draining the water from the pool and then manually entering the pool to clean it. This method suffers from problems such as low cleaning efficiency, time and labor costs, and waste of water resources.

[0003] Patent CN 109779331 B discloses an automatic pool cleaner, which includes a motor that drives a hollow rotating base to rotate. A suction pipe for cleaning the bottom of the pool is mounted on the rotating base. A discharge shell is mounted on the motor's outer casing. The suction pipe, rotating base, and the inner cavity of the discharge shell are sequentially connected to form a discharge channel, which is also equipped with a liquid extraction device. The suction pipe includes several telescopic rods movably arranged together. An elastic element is provided between adjacent telescopic rods, providing an outward extension force to the outer end of the telescopic rod. When the liquid extraction device extracts liquid, impurities are sucked into the suction pipe and discharged through the discharge channel, achieving the purpose of cleaning the pool.

[0004] However, the above-mentioned suction pipe structure is suitable for cleaning flat water surfaces such as swimming pools. For fish ponds with significant changes in the slope of the cleaning surface, this type of suction pipe is difficult to fully fit the cleaning surface, resulting in poor suction effect. Utility Model Content

[0005] The purpose of this invention is to provide an adaptive suction pipe assembly and suction equipment with a simple structure and strong cleaning ability.

[0006] The present invention adopts the following technical solution:

[0007] An adaptive suction pipe unit includes: a plurality of suction pipes, each suction pipe having at least one suction port at its bottom; and at least one suction pipe connector, installed between two adjacent suction pipes, and having a first connecting part and a second connecting part. The outer side wall of the first connecting part and / or the second connecting part is formed with a spherical surface, and the suction pipe is rotatably mounted on the spherical surface by a pin, so that the suction pipe can rotate relative to the suction pipe connector.

[0008] The adaptive suction pipe unit proposed in this utility model also has the following feature: the middle part of the suction pipe connector has an annular roller mounting part, on which a roller assembly is provided.

[0009] The adaptive suction pipe unit proposed in this utility model also has the following features: the roller assembly includes a first annular roller frame, a second annular roller frame, and a plurality of rollers disposed between the two; the roller mounting part is provided with roller grooves adapted to the rollers.

[0010] The adaptive suction pipe unit proposed in this utility model also has the following feature: a suction plate for contacting the cleaning surface is provided on the front side of the suction port of the suction pipe. The suction plate is arranged along the axial direction of the suction pipe, and a plurality of dirt passage holes or dirt passage gaps are opened on the suction plate, and / or a plurality of staggered cleaning protrusions are provided on the bottom of the suction plate.

[0011] The adaptive suction pipe unit proposed in this utility model also has the following features: the suction plate has an arc-shaped cross-section, its upper end is connected to the front side of the suction port of the suction pipe, its lower end is used to contact the clean surface, and a dirt passage gap is opened at its lower end; or, the suction plate has an arc-shaped cross-section and has several dirt passage holes, its front end is connected to the front side of the suction port of the suction pipe, its rear end is connected to the rear side of the suction port of the suction pipe, and its middle part is used to contact the clean surface.

[0012] The adaptive suction pipe unit proposed in this utility model also has the following feature: at least one baffle is provided on the rear side of the suction port of the suction pipe, and both the suction plate and the baffle are made of elastic material.

[0013] The adaptive suction pipe unit proposed in this utility model also has the following feature: a fixing part is provided between the suction plate and the baffle plate, the three are integrally formed, and are fixed to the bottom of the suction pipe by the fixing part. The fixing part is provided with a clearance hole opposite to the suction port.

[0014] The adaptive suction pipe unit proposed in this utility model also has the following features: a baffle plate is provided on the rear side of the suction port of the suction pipe; the cross-section of the suction plate is L-shaped, one end of which is connected to the front side of the suction port of the suction pipe, and the other end of which abuts against the baffle plate; a cleaning pipe arranged rearward is installed at the suction port, and the cleaning pipe is a flexible tube located between the suction plate and the baffle plate.

[0015] The adaptive suction pipe unit proposed in this utility model also has the following feature: it further includes a starting connector, which has a main body mounting part connected to the suction body, a pipe fitting mounting part connected to the first suction pipe, and a thin-walled part disposed between the main body mounting part and the pipe fitting mounting part; when the torque borne by the starting connector exceeds the threshold, the thin-walled part can automatically break.

[0016] A sludge suction device includes: a sludge suction body having a sludge suction pipe installation port and a sludge discharge port; and a sludge suction pipe unit installed on the sludge suction pipe installation port, wherein the sludge suction body can drive the sludge suction pipe unit to rotate; the sludge suction pipe unit is the aforementioned adaptive sludge suction pipe unit.

[0017] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0018] 1. The suction pipe of this utility model can swing around a pin as the rotation center and along a spherical surface at a certain angle, thereby changing the installation angle between two adjacent suction pipes to adapt to the shape of the cleaning surface with a large slope change, thereby increasing the suction capacity of the suction pipe unit.

[0019] 2. The suction plate of this utility model is used to scrape and suck up fish feces, uneaten bait, mud and sand, which helps to further improve cleaning efficiency.

[0020] 3. The baffle plate of this utility model can play a role in preventing water from entering. When the suction pipe rotates, water and cleaning materials can enter the suction port more easily, and prevent relatively clean water behind the suction pipe from entering the suction port. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the sewage suction device of this utility model.

[0022] Figure 2 This is an exploded view of the sewage suction device of this utility model.

[0023] Figure 3 This is a cross-sectional view of another suction pipe unit of this utility model.

[0024] Figure 4 This is a schematic diagram of the installation of the suction pipe connector of this utility model.

[0025] Figure 5 This is a schematic diagram showing the separation of the suction pipe connector and roller assembly of this utility model.

[0026] Figure 6 This is a partial sectional view of the starting joint of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the first type of suction pipe of this utility model.

[0028] Figure 8 This is a cross-sectional view of the first type of suction pipe of this utility model.

[0029] Figure 9 This is a schematic diagram of the structure of the second type of suction pipe of this utility model.

[0030] Figure 10 This is a cross-sectional view of the second type of suction pipe of this utility model.

[0031] Figure 11 This is a schematic diagram of the structure of the third type of suction pipe of this utility model.

[0032] Figure 12 This is a structural schematic diagram of the fourth type of suction pipe of this utility model.

[0033] Figure 13 This is a cross-sectional view of the fourth type of suction pipe of this utility model.

[0034] Figure 14 This is a structural schematic diagram of the fifth type of suction pipe of this utility model.

[0035] Figure 15 This is a cross-sectional view of the fifth type of suction pipe of this utility model.

[0036] Figure 16 This is a structural schematic diagram of the sixth type of suction pipe of this utility model.

[0037] Figure 17 This is a cross-sectional view of the sixth type of suction pipe of this utility model.

[0038] Figure 18 This is a structural schematic diagram of the seventh type of suction pipe of this utility model.

[0039] Figure 19 This is a cross-sectional view of the seventh type of suction pipe of this utility model.

[0040] The meaning of the labels in the diagram:

[0041] 1. Suction pipe; 2. Suction pipe connector; 3. Roller assembly; 4. Starting connector; 5. End connector;

[0042] 11. Suction port; 12. Suction plate; 121. Sewage passage hole; 122. Cleaning gap; 123. Water baffle; 13. Deformation gap; 132. Spacing protrusion; 14. Fixing part; 141. Clearing hole; 15. Sewage cleaning pipe; 16. End partition; 17. Second pin hole;

[0043] First connecting part 21; second connecting part 22; spherical surface 23; roller mounting part 24; roller groove 25; reinforcing part 26; first pin hole 27;

[0044] First annular roller frame 31; Second annular roller frame 32; Roller 33;

[0045] Main body mounting part 41; first protrusion 411; first groove 412; pipe fitting mounting part 42; thin-walled part 43;

[0046] The vacuuming body 100; the vacuuming pipe installation port 101; the second groove 1011; the second protrusion 1012; the sewage outlet 102; and the cleaning surface 200. Detailed Implementation

[0047] The present invention will be further described below with reference to specific embodiments:

[0048] Example 1:

[0049] like Figure 1 As shown, a sludge suction device for cleaning the bottom of a pool (especially a fishpond) includes a sludge suction body 100 and a sludge suction pipe unit.

[0050] Specifically, the suction body 100 has a suction pipe installation port 101 and a discharge port 102. The suction pipe installation port 101 and the discharge port 102 are connected to the inner cavity of the suction body 100. A discharge pipe is installed at the discharge port 102, and a suction pipe unit is installed at the suction pipe installation port 101. The suction body 100 is provided with a drive device for driving the suction pipe unit to rotate. When the drive device is working, the suction pipe unit can rotate along the suction body 100. Under the action of a water pump or a liquid level difference, water and impurities near the suction body 100 are sucked into the pipe and discharged to the outside through the discharge pipe.

[0051] like Figure 2 As shown in Figure 3, the suction pipe unit includes several suction pipes 1, at least one suction pipe connector 2, a roller assembly 3, a starting connector 4, and an ending connector 5.

[0052] Each suction pipe 1 has at least one suction port 11 axially opened at its bottom. The suction port 11 is an elongated hole or a round hole. Adjacent suction pipes 1 are connected by suction pipe connectors 2. The end of the first suction pipe 1 is installed on the suction pipe mounting port 101 of the suction body 100 through the starting connector 4. The end of the last suction pipe 1 is provided with an end connector 5 for sealing the end. Roller assemblies 3 are provided on both the suction pipe connectors 2 and the end connectors 5. The roller assemblies 3 are used to support the suction pipe 1 on the bottom surface of the pool (i.e., the cleaning surface 200) and can reduce the friction between it and the cleaning surface 200, which is beneficial to the rotation of the suction pipe unit.

[0053] like Figure 4 As shown, the suction pipe connector 2 has a first connecting part 21 and a second connecting part 22. The outer side wall of the first connecting part 21 and / or the second connecting part 22 forms a spherical surface 23. First pin holes 27 are provided on both the left and right sides of the first connecting part 21 and the second connecting part 22. Second pin holes 17 are also provided on both the left and right sides of the end of the suction pipe 1. A pin is provided between the corresponding first pin hole 27 and second pin hole 17. The suction pipe 1 is rotatably mounted on the spherical surface 23 via the pin, allowing the suction pipe 1 to rotate relative to the suction pipe connector 2. That is, under the action of gravity, the suction pipe 1 can swing at a certain angle around the pin as the center of rotation along the spherical surface 23, thereby changing the installation angle between two adjacent suction pipes 1 to adapt to the shape of the cleaning surface. Generally, the cleaning surface 200 of the pool is relatively large and has an uneven surface shape. This embodiment can use the spherical surface connection structure to allow the suction pipe unit to automatically adapt to and approach the cleaning surface 200, thereby increasing the suction capacity of the suction pipe unit.

[0054] In this embodiment, the outer wall of the first connecting part 21 is formed with a spherical surface 23, allowing relative rotation between the first connecting part 21 and one of the suction pipes 1; the outer wall of the second connecting part 22 is a circular surface, and the second connecting part 22 is fixedly connected to the other suction pipe 1 by a pin. In another embodiment, both the outer walls of the first connecting part 21 and the second connecting part 22 may be provided with a spherical surface 23.

[0055] Preferably, such as Figure 5 As shown, a reinforcing part 26 is also provided inside the suction pipe connector 2 where the first pin hole 27 is located. Each suction pipe connector 2 has a reinforcing part 26 on both its left and right sides. This reinforcing part 26 is a long, inwardly protruding strip located inside the first connecting part 21 and the second connecting part 22. Two first pin holes 27 are formed on the long protruding strip, one in the first connecting part 21 and the other in the second connecting part 22. The reinforcing part 26 increases the drilling depth of the first pin holes 27, making the pin installation more stable; it also increases the strength of the suction pipe connector 2 itself, making the first connecting part 21 and the second connecting part 22 less prone to breakage. In another embodiment, the reinforcing part 26 is a plurality of bosses, each boss having a first pin hole 27.

[0056] In addition, some or all of the suction pipe connectors 2 have an annular roller mounting part 24 in the middle, and the outer periphery of the roller mounting part 24 is provided with a roller groove 25, which is an arc-shaped groove or a V-shaped groove.

[0057] The roller mounting part 24 is provided with a roller assembly 3, which includes a first annular roller frame 31, a second annular roller frame 32, and a plurality of rollers 33 disposed between the two. A plurality of roller shafts are distributed around the first annular roller frame 31, and rollers 33 are mounted on the roller shafts. The second annular roller frame 32 is mounted on the first annular roller frame 31 and axially limits the rollers 33 on the roller shafts. At this time, the rollers 33 are located in the inner cavity formed by the first annular roller frame 31 and the second annular roller frame 32. One end of the roller 33 abuts against the roller groove 25, and the other end abuts against the outer ring wall formed by the second annular roller frame 32. The outer ring wall is used to abut against the cleaning surface 200, so that the roller assembly 3 can be movably mounted on the roller mounting part 24.

[0058] In another embodiment, one end of the roller 33 abuts against the roller groove 25, and the other end can extend out of the inner cavity formed by the first annular roller frame 31 and the second annular roller frame 32 and be used to directly abut against the cleaning surface 200.

[0059] Preferably, such as Figure 2As shown in Figure 6, the starting connector 4 has a main body mounting part 41 connected to the suction body 100, a pipe mounting part 42 connected to the first suction pipe 1, and a thin-walled part 43 disposed between the main body mounting part 41 and the pipe mounting part 42. The wall thickness of the thin-walled part 43 is thinner than the wall thickness of the main body mounting part 41 and the pipe mounting part 42, but it has a certain load-bearing capacity. When the torque borne by the starting connector 4 exceeds the threshold, the thin-walled part 43 can automatically break to prevent the suction body 100 from being overloaded and damaged.

[0060] Preferably, the main body mounting part 41 is provided with a first protrusion 411 or a first groove 412, and the inner wall of the suction pipe mounting port 101 is provided with a second groove 1011 that matches the first protrusion 411 or a second protrusion 1012 that matches the first groove 412. A fastener mounting hole is provided between the first protrusion 411 and the second groove 1011 or between the first groove 412 and the second protrusion 1012, and the fastener (preferably a screw) fixes the two through the fastener mounting hole.

[0061] Preferably, the outer wall of the pipe fitting mounting part 42 is formed with a spherical surface 23 and a third pin hole for mounting pin. The first suction pipe 1 is rotatably mounted on the spherical surface 23 by the pin and can achieve a certain angle of rotation.

[0062] Preferably, such as Figure 3 As shown, the main body of the end connector 5 is an end cap, on which extend a pipe fitting connection part for installing the last suction pipe 1 and a roller connection part for installing the roller assembly 3. The structure of the pipe fitting connection part is the same as the structure of the first connection part 21 of the suction pipe connector 2, and it also has a spherical surface 23; the structure of the roller connection part is the same as the structure of the roller mounting part 24 of the suction pipe connector 2.

[0063] In this embodiment, there are multiple types of suction pipes 1. The suction pipe unit can be equipped with multiple suction pipes 1 of the same type, or multiple suction pipes 1 of different types.

[0064] The first type of suction pipe:

[0065] like Figure 7 , 8 As shown, the suction pipe 1 has a circular cross-section. A suction plate 12 for contacting the cleaning surface 200 is provided on the front side of the suction port 11 of the suction pipe 1. The suction plate 12 is arranged along the axial direction of the suction pipe 1, and has several passage holes 121 or passage gaps 122. The suction plate 12 is used to scrape and suck up fish feces, uneaten food, mud, and other cleaning materials. The passage gaps 122 allow the bottom of the suction plate 12 to deform to adapt to the shape of the cleaning surface 200.

[0066] Preferably, at least one baffle plate 13 is provided on the rear side of the suction port 11 of the suction pipe 1. Both the suction plate 12 and the baffle plate 13 are made of elastic material and are integrally or separately provided on the suction pipe 1.

[0067] In this embodiment, both the suction plate 12 and the baffle plate 13 have arc-shaped cross-sections. The upper end of the suction plate 12 is connected to the front side of the suction port 11 of the suction pipe 1, and its lower end is used to contact the cleaning surface 200. A dirt-passing gap 122 is provided at its lower end, and the gap 122 has a relatively large spacing to suck up cleaning materials. The upper end of the baffle plate 13 is connected to the rear side of the suction port 11 of the suction pipe 1, and its lower end is also used to contact the cleaning surface 200, serving as a water barrier. When the suction pipe 1 rotates, water and cleaning materials can more easily enter the suction port 11, while preventing relatively clean water from the rear of the suction pipe 1 from entering the suction port 11.

[0068] Preferably, the bottom of the baffle plate 13 is provided with a number of spaced deformation gaps 131, which facilitates its deformation according to the shape of the cleaning surface 200 and improves the water-proof effect.

[0069] Since the suction pipe 1 in this embodiment is the first suction pipe, an end partition 16 is also provided at the end of the suction plate 12 and the baffle plate 13. The other end of the suction plate 12 and the baffle plate 13 abuts against the roller assembly 3. When it is installed on the cleaning surface 200, it can ensure that a relatively sealed space is formed between the suction plate 12 and the baffle plate 13 of each suction pipe 1, thereby improving the suction efficiency.

[0070] In another embodiment, several partition protrusions can be provided in front of the suction plate 12 to clean the impurities in the grooves and pits on the surface of the cleaning surface. A gap can be formed between two adjacent partition protrusions to allow the cleaning material to be sucked in. In this case, the spacing of the dirt passage gap 122 can be relatively small, equivalent to a slit.

[0071] The second type of suction pipe:

[0072] like Figure 9 , 10 As shown, a suction plate 12 for contacting the cleaning surface 200 is provided on the outer side of the suction port 11 of the suction pipe 1. The suction plate 12 is arranged along the axial direction of the suction pipe 1, and has several dirt passage holes 121, which are circular, square, or strip-shaped. The cross-section of the suction plate 12 is arc-shaped, with its front end connected to the front side of the suction port 11 of the suction pipe 1 and its lower end connected to the rear side of the suction port 11 of the suction pipe 1. The middle part is used to contact the cleaning surface 200, and the two ends of the suction plate 12 abut against the corresponding roller assembly 3. At this time, the suction plate 12 has a certain deformation capability, and its shape can be adapted to the shape of the cleaning surface 200. At the same time, the suction plate 12 can also act as a filter screen to filter large-sized fallen leaves and other materials, preventing them from clogging the suction port 11.

[0073] Preferably, a baffle plate 13 is also provided on the suction pipe 1 behind the suction plate 12. Both the suction plate 12 and the baffle plate 13 are made of elastic material and are integrally or separately provided on the suction pipe 1. The bottom of the baffle plate 13 is provided with a number of spaced deformation slits 131.

[0074] The third type of suction pipe:

[0075] The structure of the embodiment is basically the same as that of the second type of suction pipe, except that, as Figure 11 As shown, the cross-section of the suction pipe 1 is elliptical.

[0076] The fourth type of suction pipe:

[0077] like Figure 12 , 13 As shown, a suction component is integrally or separately fixed at the suction port 11 of the suction pipe 1. The suction component has an integrally formed suction plate 12, a fixing part 14 and a baffle plate 13. The three are integrally formed from elastic materials such as plastic or rubber and are fixed to the bottom of the suction pipe 1 by the fixing part 14. The fixing part 14 is provided with a clearance hole 141 opposite to the suction port 11.

[0078] In this embodiment, the suction pipe 1 is made of plastic, and the suction component is made of rubber. The two are fixedly connected by rivets or screws.

[0079] In this embodiment, both the suction plate 12 and the baffle plate 13 have arc-shaped cross sections. The suction plate 12 is located in front of the suction port 11, and its lower end is provided with several dirt passage holes 121 or dirt passage gaps 122, which are used to contact the cleaning surface 200. The baffle plate 13 is located behind the suction port 11, and its lower end is also used to contact the cleaning surface 200.

[0080] The fifth type of suction pipe:

[0081] like Figure 14 , 15 As shown, the structure of the embodiment is basically the same as that of the fourth type of suction pipe. On this basis, another larger baffle plate 13 is provided to further improve the water blocking effect and prevent relatively clean water behind the suction pipe 1 from entering the suction port 11.

[0082] The sixth type of suction pipe:

[0083] like Figure 16 , 17As shown, a suction plate 12 is provided on the front side of the suction port 11 of the suction pipe 1, and a baffle plate 13 is provided on the rear side. The suction plate 12 has an L-shaped cross-section, with one end connected to the front side of the suction port 11 of the suction pipe 1, and the other end abutting against the lower end of the baffle plate 13. A cleaning pipe 15 is installed at the suction port 11, facing rearward. The cleaning pipe 15 is a flexible tube located between the suction plate 12 and the baffle plate 13. Under the protection of the suction plate 12 and the baffle plate 13, the cleaning pipe 15 can be closer to the cleaning surface 200 to achieve a better suction effect.

[0084] The seventh type of suction pipe:

[0085] The structure of the embodiment is basically the same as that of the fourth type of suction pipe, except that...

[0086] like Figure 18 , 19 As shown, a suction component is integrally or separately fixed at the suction port 11 of the suction pipe 1. The suction component has an integrally formed suction plate 12, a fixing part 14 and a baffle plate 13. The three are integrally formed from elastic materials such as plastic or rubber and are fixed to the bottom of the suction pipe 1 by the fixing part 14. The fixing part 14 is provided with a clearance hole 141 opposite to the suction port 11.

[0087] Both the suction plate 12 and the baffle plate 13 have arc-shaped cross sections. The suction plate 12 is located in front of the suction port 11, and a dirt passage gap 122 is opened at its bottom end. The front side of the bottom end of the suction plate 12 is provided with staggered cleaning protrusions 123, and an S-shaped gap is formed between the cleaning protrusions 123, so that the bottom end of the suction plate 122 forms a structure similar to bristles.

[0088] The cleaning surface 200 often has grooves, pits, and other structures that easily accumulate impurities and create unsanitary corners. When the suction plate 12 of this embodiment is adapted to fit the cleaning surface 200, the cleaning protrusions 123 can extend into the grooves, pits, and other structures to better clean the impurities inside. At the same time, the S-shaped gap can lengthen the water flow path, allowing the water to contact the cleaning surface 200 for a longer time, and making it easier for impurities to enter the suction port 11 on the rear side of the suction plate 12.

[0089] Preferably, the baffle plate 13 is located behind the suction port 11, and its bottom end is provided with a number of spaced deformation gaps 131. The front side of its lower end is provided with neatly arranged spaced protrusions 132. The spaced protrusions 132 ensure that a water flow channel can always be formed between the suction plate 12 and the baffle plate 13, preventing the suction plate 12 and the baffle plate 13 from sticking together.

[0090] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An adaptive suction pipe unit, characterized in that, include: Several suction pipes (1), each suction pipe (1) has at least one suction port (11) at the bottom; as well as At least one suction pipe connector (2) is installed between two adjacent suction pipes (1) and has a first connecting part (21) and a second connecting part (22) for connecting the first connecting part (21) and / or the second connecting part (22), the outer side wall of which is formed with a spherical surface (23). The suction pipe (1) is rotatably mounted on the spherical surface (23) by a pin, so that the suction pipe (1) can rotate relative to the suction pipe connector (2).

2. The adaptive suction pipe unit according to claim 1, characterized in that, The suction pipe connector (2) has an annular roller mounting part (24) in the middle, on which a roller assembly (3) is provided.

3. The adaptive suction pipe unit according to claim 2, characterized in that, The roller assembly (3) includes a first annular roller frame (31), a second annular roller frame (32), and a plurality of rollers (33) disposed between the two; The roller mounting part (24) is provided with a roller groove (25) adapted to the roller (33).

4. An adaptive suction pipe unit according to any one of claims 1-3, characterized in that, The suction pipe (1) is provided with a suction plate (12) for contacting the cleaning surface (200) on the front side of the suction port (11). The suction plate (12) is arranged along the axial direction of the suction pipe (1). The suction plate (12) is provided with a plurality of dirt passage holes (121) or dirt passage gaps (122), or / and, and the bottom of the suction plate (12) is provided with a plurality of staggered cleaning protrusions (123).

5. The adaptive suction pipe unit according to claim 4, characterized in that, The cross-section of the suction plate (12) is arc-shaped. Its upper end is connected to the front side of the suction port (11) of the suction pipe (1), its lower end is used to contact the cleaning surface (200), and its lower end has a dirt passage gap (122). Alternatively, the cross-section of the suction plate (12) is arc-shaped and has several dirt passage holes (121). Its front end is connected to the front side of the suction port (11) of the suction pipe (1), and its rear end is connected to the rear side of the suction port (11) of the suction pipe (1). Its middle part is used to contact the cleaning surface (200).

6. The adaptive suction pipe unit according to claim 4, characterized in that, At least one baffle plate (13) is provided on the rear side of the suction port (11) of the suction pipe (1), and both the suction plate (12) and the baffle plate (13) are made of elastic material.

7. The adaptive suction pipe unit according to claim 6, characterized in that, A fixing part (14) is provided between the suction plate (12) and the baffle plate (13). The three are integrally formed and fixed to the bottom of the suction pipe (1) by the fixing part (14). The fixing part (14) is provided with a clearance hole (141) opposite to the suction port (11).

8. The adaptive suction pipe unit according to claim 4, characterized in that, A baffle plate (13) is provided on the rear side of the suction port (11) of the suction pipe (1). The suction plate (12) has an L-shaped cross-section, with one end connected to the front of the suction port (11) of the suction pipe (1), and the other end abutting against the baffle plate (13). A rearward-facing cleaning pipe (15) is installed at the suction port (11). The cleaning pipe (15) is a flexible hose and is located between the suction plate (12) and the baffle plate (13).

9. An adaptive suction pipe unit according to any one of claims 1-3, characterized in that, It also includes a starting connector (4), which has a main body mounting part (41) connected to the suction body (100), a pipe fitting mounting part (42) connected to the first suction pipe (1), and a thin-walled part (43) disposed between the main body mounting part (41) and the pipe fitting mounting part (42); When the torque borne by the starting joint (4) exceeds the threshold, the thin-walled part (43) can automatically break.

10. A sewage suction device, characterized in that, include: The suction body (100) has a suction pipe installation port (101) and a discharge port (102); as well as A suction pipe unit is installed on the suction pipe mounting port (101), and the suction body (100) can drive the suction pipe unit to rotate; The suction pipe unit is the adaptive suction pipe unit as described in any one of claims 1-9.

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