Fabricated functional well for drainage pipeline

Abstract

The utility model relates to a drainage pipeline assembly type functional well. The utility model is suitable for the technical field of urban drainage equipment. According to the technical scheme, the device comprises an upper well chamber, the bottom of the upper well chamber is connected with a first sleeve through a first fixing assembly, the bottom of the first sleeve is connected with an upper shell, and a plurality of positioning grooves are formed in the upper shell in the annular direction at intervals; the lower well chamber is arranged below the lower well chamber, the top of the lower well chamber is connected with a second sleeve through a first fixing assembly, the top of the second sleeve is connected with a lower shell, a plurality of first through holes in one-to-one correspondence with the positioning grooves are formed in the lower shell at intervals in the circumferential direction, and positioning pieces capable of being in sliding fit with the positioning grooves are slidably connected into the first through holes; the second fixing assembly is arranged on the inner wall of the positioning groove, and the second fixing assembly can be clamped and matched with the positioning piece; and the driving assembly is arranged at the inner bottom of the lower shell and used for driving the positioning piece to slide in the positioning groove until the positioning piece and the second fixing assembly are clamped and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of urban drainage equipment, in particular to a drainage pipeline assembled functional well. Background Art

[0002] In the municipal drainage system, the inspection well is a structure on the drainage pipe that connects other drainage pipes and provides a means for maintenance workers to inspect, clear, and enter and exit the drainage pipe. At present, prefabricated reinforced concrete inspection wells are already very common in developed countries. Their popularity, mechanized production, and standardized construction levels are also constantly improving in major domestic cities, gradually replacing traditional brick and cast-in-place concrete inspection wells. Prefabricated reinforced concrete inspection wells are installed in a "stacking block" manner. After the foundation treatment is completed, they are installed upwards from the reinforced concrete bottom plate, using cranes and other mechanized construction methods for easy operation.

[0003] At present, prefabricated reinforced concrete inspection wells are mainly prefabricated in factories and then transported to construction sites for installation. Compared with cast-in-place concrete inspection wells, the construction period is greatly shortened. Before installing the well chamber, two or more installers are required to enter the trench. For some well chambers with larger diameters, in order to ensure the flatness and verticality of each component, at least one worker is required to enter the well chamber to adjust and calibrate the position. However, the on-site construction environment is complex, and there are certain safety hazards for workers to enter the well chamber to adjust and calibrate the direction, and the adjustment and calibration time is relatively long. Summary of the invention

[0004] The technical problem to be solved by the utility model is: to provide a drainage pipeline assembled functional well in view of the above-mentioned problems.

[0005] The technical solution adopted by the utility model is: a drainage pipeline assembled functional well, characterized by comprising:

[0006] An upper well chamber, wherein the bottom of the upper well chamber is connected to a first casing via a first fixing assembly, the bottom of the first casing is connected to an upper outer shell, and a plurality of positioning grooves are provided in the upper outer shell at intervals along the annular direction;

[0007] A lower well chamber is arranged below the lower well chamber, the top of the lower well chamber is connected to a second sleeve via the first fixing assembly, the top of the second sleeve is connected to a lower outer shell, a plurality of first through holes corresponding to the positioning grooves are arranged in an annular direction at intervals in the lower outer shell, and a positioning member capable of slidingly cooperating with the positioning groove is slidably connected in the first through hole;

[0008] A second fixing component is disposed on the inner wall of the positioning groove, and the second fixing component can be engaged with the positioning member;

[0009] A driving assembly is arranged at the inner bottom of the lower shell, and the driving assembly is used to drive the positioning member to slide along the positioning groove until the positioning member is engaged and fixed with the second fixing assembly.

[0010] Through the above-mentioned technical means, the sliding cooperation between the positioning groove of the upper well chamber and the positioning piece of the lower well chamber is utilized, so that the upper well chamber and the lower well chamber can be quickly proofread during the installation process, thereby shortening the time for preliminary installation proofreading. After the assembly between the upper well chamber and the lower well chamber is completed, the driving component is used to drive the positioning piece to slide into the positioning groove, and the positioning piece and the second fixing component are snap-fitted and fixed to achieve fixed installation between the upper well chamber and the lower well chamber, and the staff can cooperate with the crane to work outside the well chamber, thereby improving the safety of the staff during the construction process.

[0011] In some embodiments, the second fixing assembly includes a limit block, a return spring and a connecting rod, the end of the positioning member facing the positioning groove is provided with an outward convex arc surface, the end of the positioning member facing the positioning groove is provided with a clamping groove along the annular direction for clamping with the limit block, the inner wall of the positioning groove is symmetrically provided with a second through hole, a connecting rod is slidably connected in the second through hole, the end of the connecting rod facing the inner wall of the positioning groove is connected to the limit block, the outer sleeve of the connecting rod is provided with the return spring, one end of the return spring is connected to the connecting rod, and the other end of the return spring is connected to the inner wall of the positioning groove.

[0012] In some embodiments, the portion of the limit block that abuts against the positioning member is configured to be an inner concave rounded shape that matches the outer convex arc surface.

[0013] In some embodiments, the driving assembly includes a sliding seat, a slider, a movable ring, a protrusion and a pushing member. The sliding seat is provided on the inner bottom of the lower shell along the annular direction, the sliding seat is slidably connected to the sliding seat, the top of the slider is fixedly connected to the movable ring, and a limiting plate is provided on the side wall inside the lower shell. The positioning member located above the movable ring is slidably connected between the limiting plates. The top surface of the movable ring is provided with protrusions corresponding to the number of the positioning members along the annular direction, and either end of the protrusion is at least partially sloped. The movable ring is connected to the pushing member, and the pushing member is used to rotate the movable ring so that the protrusion pushes the positioning member into the positioning groove along the slope.

[0014] In some embodiments, the slope angle of the sloped surface of the protrusion is 30°.

[0015] In some embodiments, the pushing member is a lever, the outer wall of the lower shell is provided with a strip hole, the lever is slidably connected in the strip hole, one end of the lever is connected to the movable ring, and the other end of the lever at least partially extends outside the strip hole.

[0016] In some embodiments, the length of the strip-shaped hole is determined according to the position of the positioning member sliding to the top of the protrusion when the lever is slid to the end of the strip-shaped hole.

[0017] In some embodiments, the first fixing assembly includes a nut and a bolt, the bottom of the upper well chamber and the top of the lower well chamber are both provided with third through holes at circumferential intervals, the first casing and the second casing are both provided with fourth through holes at circumferential intervals corresponding to the third through holes, the bolt passes through the third through hole and the fourth through hole, and the nut is connected to the end of the bolt close to the outer wall of the first casing or the second casing.

[0018] In some embodiments, a manhole cover is provided on the top of the upper well chamber, a fifth through hole is provided on the manhole cover, a limiting shell is connected to the bottom of the manhole cover, sixth through holes are symmetrically provided on the side walls at both ends of the limiting shell, a clamping plate is slidably connected in the sixth through hole, a limiting assembly is provided inside the limiting shell, a control end of the limiting assembly is connected to the fifth through hole, a driving end of the limiting assembly is transmission connected to the clamping plate, and the limiting assembly is used to fix the manhole cover on the upper well chamber.

[0019] In some embodiments, the limit assembly includes a bearing seat, a shaft, a gear and a rack. The bearing seat is installed on the inner bottom of the limit shell, and the top of the bearing seat is provided with the shaft connected to the fifth through hole. The inside of the shaft is provided with a hexagonal groove corresponding to the fifth through hole. The gear is arranged on the outer sleeve of the shaft, and the clamping plates at both ends are connected to the racks respectively, and the two racks are respectively meshed with the two sides of the gear.

[0020] The beneficial effects of the utility model are:

[0021] 1. During installation, the staff can cooperate with the crane outside the wellbore to move the upper wellbore chamber to the top of the lower wellbore chamber, and make the positioning groove at the bottom of the upper shell correspond to the positioning piece at the top of the lower shell, so as to facilitate the rapid calibration between the upper wellbore chamber and the lower wellbore chamber, shorten the time of preliminary installation calibration, and after the assembly between the upper wellbore chamber and the lower wellbore chamber is completed, the staff can use the driving assembly to drive the positioning piece, so that the positioning piece and the second fixing assembly are clamped and fixed, thereby completing the fixed installation between the upper wellbore chamber and the lower wellbore chamber. The installation process is simple and the staff can work outside the wellbore chamber, which improves the safety of the staff.

[0022] 2. The manhole cover is fixed to the upper well chamber through the limiting component, which improves the connection stability between the manhole cover and the upper well chamber, realizes the anti-theft function of the manhole cover, and reduces the risk of accidents such as theft of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of this application.

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure from the first viewing angle of this application.

[0025] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of area A in FIG.

[0026] Figure 4 It is a schematic diagram of the cross-sectional structure from the second viewing angle of this application.

[0027] Figure 5 It is a schematic diagram of the top cross-sectional structure of the upper shell in this application.

[0028] Figure 6 It is a schematic diagram of the top view and cross-section structure of the lower shell in this application.

[0029] Figure 7 It is a structural schematic diagram of the manhole cover and the third shell in this application.

[0030] Figure 8 It is a schematic diagram of the internal structure of the third shell in this application.

[0031] Description of reference numerals:

[0032] 1. Manhole cover; 2. Upper well chamber; 3. First sleeve; 4. Upper shell; 5. Lower shell; 6. Second sleeve; 7. Lower well chamber; 8. Nut; 9. Third through hole; 10. Fourth through hole; 11. Bolt; 12. Movable ring; 13. Sliding seat; 14. Sliding block; 15. Stop block; 16. Reset spring; 17. Second through hole; 18. Connecting rod; 19. Slot; 20. Positioning piece; 21. Positioning slot; 22. First through hole; 23. Strip hole; 24. Push rod; 25. Rack; 26. Stop plate; 27. Bump; 28. Fifth through hole; 29. ​​Stop shell; 30. Sixth through hole; 31. Stop plate; 32. Hexagon socket; 33. Shaft; 34. Gear; 35. Bearing seat.

[0033] This specification includes references to "one embodiment" or "an embodiment." The appearance of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. The particular features, structures or characteristics may be combined in any suitable manner consistent with the present disclosure.

[0034] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

[0035] "First," "second," etc. As used herein, these terms act as labels for the nouns that precede them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.

[0037] Combination Figures 1 to 8 As shown, the present embodiment is a drainage pipeline assembled functional well, comprising an upper well chamber 2, a first casing 3, an upper outer shell 4, a lower outer shell 5, a second casing 6, a lower well chamber 7, a first fixing assembly, a second fixing assembly and a driving assembly. The upper well chamber 2 is arranged above the lower well chamber 7. The bottom of the upper well chamber 2 is connected to the first casing 3 via the first fixing assembly. The bottom of the first casing 3 is fixedly connected to the upper outer shell 4. A plurality of positioning grooves 21 are arranged circumferentially in the upper outer shell 4; the top of the lower well chamber 7 is connected to the second casing 6 via the first fixing assembly. The top of the second casing 6 is connected to the lower outer shell 5. A plurality of first through holes 22 are arranged circumferentially in the lower outer shell 5. The first through holes 22 correspond to the positioning grooves 21 one by one. A positioning member 20 is slidably connected in the first through hole 22. The positioning member 20 and the positioning groove 21 can be slidably matched. The upper well chamber 2 and the lower well chamber 7 are installed and positioned via the positioning piece 20 and the positioning groove 21. A second fixing component is provided on the inner wall of the positioning groove 21, and the second fixing component can be snap-fitted with the positioning piece 20. A driving component is provided on the inner bottom of the lower outer shell 5, and the driving component is used to drive the positioning piece 20 to slide along the first through hole 22 to the positioning groove 21, and further slide in the positioning groove 21 until it is snap-fitted with the second fixing component.

[0038] In some embodiments, such as Figure 2 As shown, the first fixing assembly includes a nut 8 and a bolt 11, the bottom of the upper well chamber 2 and the top of the lower well chamber 7 are both provided with third through holes 9 at intervals along the annular direction, and the first casing 3 and the second casing 6 are both provided with fourth through holes 10 at intervals along the annular direction, and the positions of the fourth through holes 10 correspond to the third through holes 9 one by one. When the upper well chamber 2 and the first casing 3 or the lower well chamber 7 and the second casing 6 are plugged and matched, the bolt 11 is used to pass through the fourth through hole 10 and the third through hole 9 from the inner wall of the first casing 3 or the second casing 6, and the end of the bolt 11 at least partially passes through the outer wall of the first casing 3 or the second casing 6, and the nut 8 is connected to the exposed end of the bolt 11, so as to realize the fixed connection between the upper well chamber 2 and the first casing 3, and the lower well chamber 7 and the second casing 6.

[0039] In some embodiments, such as Figure 3As shown, the second fixing component includes a limit block 15, a return spring 16 and a connecting rod 18. In this embodiment, the positioning member 20 is in the shape of a column, and the end of the positioning member 20 facing the positioning groove 21 is set with an outward convex arc surface. The end of the positioning member 20 facing the positioning groove 21 is provided with a slot 19 along the annular direction for engaging with the limit block 15. The inner wall of the positioning groove 21 is symmetrically provided with a second through hole 17, and a connecting rod 18 is slidably connected in the second through hole 17. The end of the connecting rod 18 facing the inside of the positioning groove 21 is connected to the limit block 15, and a return spring 16 is provided on the outer sleeve of the connecting rod 18. One end of the return spring 16 is connected to the limit block 15, and the other end of the return spring 16 is connected to the inner wall of the positioning groove 21.

[0040] Furthermore, the portion of the stopper 15 that contacts the positioning member 20 is configured to be a concave fillet shape that matches the convex arc surface at the end of the positioning member 20, and the fillet radians of the two are consistent. In this embodiment, the height of the stopper 15 is the same as the height of the slot 19, so that the stopper 15 can be inserted into the slot 19 to fix the positioning member 20.

[0041] When the positioning member 20 is acted upon by the driving assembly, the positioning member 20 slides along the first through hole 22 into the positioning groove 21, and the positioning member 20 slides in the positioning groove 21 until it abuts against the limit block 15. Due to the elastic action of the return spring 16 and the cooperation between the convex arc surface and the concave fillet, the positioning member 20 continues to slide upward and the limit blocks 15 on both sides simultaneously squeeze the corresponding return springs 16 outward until the slots 19 of the positioning member 20 correspond to the limit blocks 15. The limit blocks 15 on both sides are reset and pressed into the slots 19 under the elastic action of the return spring 16, and the upper shell 4 and the lower shell 5 are fixed with the help of the limit blocks 15 and the slots 19.

[0042] In some embodiments, such as Figure 4 , Figure 5 and Figure 6As shown, the driving assembly includes a slide 13, a slider 14, a movable ring 12, a protrusion 27 and a pusher. The inner bottom of the lower housing 5 is provided with a slide 13 along the annular direction. A plurality of sliders 14 are slidably connected to the slide 13. The top of the slider 14 is fixedly connected with the movable ring 12. Under the sliding cooperation between the slide 13 and the slider 14, the movable ring 12 can rotate along the annular direction inside the lower housing 5. A limiting plate 26 is provided on the side wall inside the lower housing 5. A positioning member 20 located above the movable ring 12 is slidably connected between the limiting plates 26. In this embodiment, the length between a pair of limiting plates 26 is greater than the diameter of the first through hole 22. The limiting plates 26 can limit the positioning member 20 to prevent the positioning member 20 from falling off from the inner bottom of the lower housing 5. The top surface of the movable ring 12 is provided with a plurality of protrusions 27 at intervals along the annular direction, the number of the protrusions 27 corresponds to the number of the positioning members 20, and at least part of either end of the protrusion 27 is provided with a slope. The movable ring 12 is connected with a pushing member, and the pushing member is used to rotate the movable ring 12 so that the protrusions 27 on the movable ring 12 can squeeze the corresponding positioning members 20. With the help of the slope of the protrusion 27, the positioning member 20 can be pushed upward in the vertical direction, and then the positioning member 20 can slide along the slope of the protrusion 27 until it slides into the positioning groove 21.

[0043] Furthermore, in this embodiment, the pusher is a lever 24, and the outer wall of the lower housing 5 is provided with a strip hole 23, and the lever 24 is slidably connected in the strip hole 23, one end of the lever 24 is connected to the movable ring 12, and the other end of the lever 24 at least partially extends outside the strip hole 23. The strip hole 23 is conducive to limiting the range of movement of the lever 24, and the length of the strip hole 23 is determined according to the positioning member 20 being able to slide to the top of the protrusion 27 when the lever 24 is slid to the end of the strip hole 23.

[0044] Furthermore, in this embodiment, six protrusions 27 are provided on the movable ring 12, and the direction of the lever 24 is clockwise, so that the protrusions 27 also rotate clockwise, and the end of the protrusion 27 rotating toward the corresponding positioning member 20 is provided with a slope, and the broken angle of the slope of the protrusion 27 is 30 degrees, and the bottom part of the positioning member 20 facing the protrusion 27 is provided with a chamfer. When the lever 24 rotates clockwise to the leftmost end of the strip hole 23, the bottom chamfer of the positioning member 20 cooperates with the slope of the protrusion 27, so that the protrusion 27 can push the positioning member 20 upward in the vertical direction, so that the positioning member 20 is located on the top of the protrusion 27.

[0045] In some embodiments, such as Figure 7As shown, a manhole cover 1 is provided on the top of the upper well chamber 2, and a fifth through hole 28 is provided on the manhole cover 1. The bottom of the manhole cover 1 is connected to a limiting shell 29, and the side walls at both ends of the limiting shell 29 are symmetrically provided with sixth through holes 30. A clamping plate 31 is slidably connected in the sixth through hole 30, and a limiting assembly is provided inside the limiting shell 29. The control end of the limiting assembly is connected to the fifth through hole 28, and the driving end of the limiting assembly is transmission-connected to the clamping plate 31. The limiting assembly is used to fix the manhole cover 1 on the upper well chamber 2.

[0046] Further, such as Figure 8 As shown, the limit assembly includes a bearing seat 35, a shaft 33, a gear 34 and a rack 25. The bearing seat 35 is installed on the inner bottom of the limit housing 29. The top of the bearing seat 35 is provided with a shaft 33 connected to the fifth through hole 28. The interior of the shaft 33 is provided with a hexagonal groove 32 corresponding to the fifth through hole 28. The shaft 33 is outer-mounted with a gear 34. The clamping plates 31 at both ends are correspondingly connected to the racks 25. The two racks 25 are respectively meshed with the two sides of the gear 34 toward one side of the gear 34.

[0047] The fifth through hole 28 rotates the inner hexagonal groove 32 to rotate the shaft 33 around its own axis, and the shaft 33 drives the gear 34 to rotate. Since the two sides of the gear 34 are meshed with the two racks 25, the rotation of the gear 34 can drive the racks 25 at both ends to move outward or inward synchronously, and the racks 25 drive the corresponding clamping plate 31 to achieve clamping fixation or release fixation with the upper well chamber 2. The limit assembly improves the connection stability effect between the manhole cover 1 and the upper well chamber 2, realizes the anti-theft function of the manhole cover 1, and prevents the manhole cover 1 from being stolen by lawless elements.

[0048] The implementation principle of a drainage pipeline assembled functional well is as follows:

[0049] When installing the upper well chamber 2 and the lower well chamber 7, the staff can cooperate with the crane outside the well chamber to move the upper well chamber 2 to the top of the lower well chamber 7, and make the positioning groove 21 at the bottom of the upper shell 4 and the positioning piece 20 at the top of the lower shell 5 fit together, which is convenient for rapid calibration between the upper well chamber 2 and the lower well chamber 7, shortening the time for preliminary installation calibration. Subsequently, the staff member moves the lever 24 clockwise outside the wellbore, and under the cooperation of the sliding seat 13 and the sliding block 14, the movable ring 12 is driven to rotate clockwise, and the movable ring 12 drives the protrusion 27 to move synchronously. Since the junction between the protrusion 27 and the positioning member 20 is arranged on a slope and the positioning member 20 can slide in the vertical direction, the protrusion 27 lifts the positioning member 20 upward. During the lifting of the positioning member 20, the top of the positioning member 20 breaks through the restriction of the limit blocks 15 on both sides. At the same time, the limit blocks 15 on both sides move outward along the rounded arc surface at the end of the positioning member 20 until the limit blocks 15 correspond to the slots 19 on the positioning member 20. The limit blocks 15 are snapped into the slots 19 under the elastic action of the return spring 16, completing the fixation of the positioning member 20, and then completing the fixed installation between the upper well chamber 2 and the lower well chamber 7. It is also convenient for disassembly and assembly, which is conducive to multiple uses of the inspection well and reduces the cost of use.

[0050] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A drainage pipeline assembled functional well, characterized in that: include: An upper well chamber (2), the bottom of the upper well chamber (2) being connected to a first casing (3) via a first fixing assembly, the bottom of the first casing (3) being connected to an upper outer shell (4), and a plurality of positioning grooves (21) being provided in the upper outer shell (4) at intervals in the circumferential direction; A lower well chamber (7) is arranged below the lower well chamber (7); the top of the lower well chamber (7) is connected to a second sleeve (6) via the first fixing assembly; the top of the second sleeve (6) is connected to a lower outer shell (5); a plurality of first through holes (22) corresponding to the positioning grooves (21) are arranged in an annular direction at intervals in the lower outer shell (5); a positioning member (20) capable of slidingly cooperating with the positioning groove (21) is slidably connected in the first through hole (22); A second fixing component is arranged on the inner wall of the positioning groove (21), and the second fixing component can be snap-fitted with the positioning member (20); A driving assembly is arranged at the inner bottom of the lower housing (5), and is used to drive the positioning member (20) to slide along the positioning groove (21) until the positioning member (20) is engaged and fixed with the second fixing assembly.

2. A drainage pipeline assembled functional well according to claim 1, characterized in that: The second fixing assembly comprises a limit block (15), a return spring (16) and a connecting rod (18); the end of the positioning member (20) facing the positioning groove (21) is provided with an outward convex arc surface; the end of the positioning member (20) facing the positioning groove (21) is provided with a clamping groove (19) in a circumferential direction and is engaged with the limit block (15); the inner wall of the positioning groove (21) is symmetrically provided with a second through hole (17); the second through hole (17) is slidably connected with a connecting rod (18); the end of the connecting rod (18) facing the inner wall of the positioning groove (21) is connected with the limit block (15); the return spring (16) is provided on the outer sleeve of the connecting rod (18); one end of the return spring (16) is connected to the connecting rod (18); the other end of the return spring (16) is connected to the inner wall of the positioning groove (21).

3. A drainage pipeline assembled functional well according to claim 2, characterized in that: The portion of the limit block (15) that contacts the positioning member (20) is configured to be an inner concave rounded shape that matches the outer convex arc surface.

4. The drainage pipeline assembled functional well according to claim 1, characterized in that: The driving assembly comprises a sliding seat (13), a slider (14), a movable ring (12), a protrusion (27) and a pushing member. The sliding seat (13) is provided at the inner bottom of the lower shell along the annular direction. The sliding seat (13) is slidably connected to the sliding seat (14). The top of the slider (14) is fixedly connected to the movable ring (12). A limiting plate (26) is provided on the side wall inside the lower shell (5). The positioning member (20) located above the movable ring (12) is slidably connected between the limiting plates (26). The top surface of the movable ring (12) is provided with protrusions (27) corresponding to the number of the positioning members (20) along the annular direction. At least part of either end of the protrusion (27) is arranged in a sloped surface. The movable ring (12) is connected to the pushing member. The pushing member is used to rotate the movable ring (12) so that the protrusion (27) pushes the positioning member (20) into the positioning groove (21) along the slope.

5. The drainage pipeline assembled functional well according to claim 4, characterized in that: The slope angle of the sloped surface of the protrusion (27) is 30°.

6. The drainage pipeline assembled functional well according to claim 4, characterized in that: The pushing member is a lever (24), the outer wall of the lower shell (5) is provided with a strip hole (23), the lever (24) is slidably connected in the strip hole (23), one end of the lever (24) is connected to the movable ring (12), and the other end of the lever (24) at least partially extends outside the strip hole (23).

7. A drainage pipeline assembled functional well according to claim 6, characterized in that: The length of the strip-shaped hole (23) is determined based on the position of the positioning member (20) sliding to the top of the protrusion (27) when the lever (24) slides to the end of the strip-shaped hole (23).

8. The drainage pipeline assembled functional well according to claim 1, characterized in that: The first fixing assembly comprises a nut (8) and a bolt (11); the bottom of the upper well chamber (2) and the top of the lower well chamber (7) are both provided with third through holes (9) at intervals along the annular direction; the first sleeve (3) and the second sleeve (6) are both provided with fourth through holes (10) corresponding to the third through holes (9) at intervals along the annular direction; the bolt (11) passes through the third through hole (9) and the fourth through hole (10); the nut (8) is connected to the end of the bolt (11) close to the outer wall of the first sleeve (3) or the second sleeve (6).

9. The drainage pipeline assembled functional well according to claim 1, characterized in that: A manhole cover (1) is provided on the top of the upper well chamber (2), a fifth through hole (28) is provided on the manhole cover (1), a limit housing (29) is connected to the bottom of the manhole cover (1), sixth through holes (30) are symmetrically provided on the side walls at both ends of the limit housing (29), a clamping plate (31) is slidably connected in the sixth through hole (30), a limit assembly is provided inside the limit housing (29), a control end of the limit assembly is connected to the fifth through hole (28), a driving end of the limit assembly is transmission-connected to the clamping plate (31), and the limit assembly is used to fix the manhole cover (1) on the upper well chamber (2).

10. A drainage pipeline assembled functional well according to claim 9, characterized in that: The limiting assembly comprises a bearing seat (35), a shaft (33), a gear (34) and a rack (25); the bearing seat (35) is installed on the inner bottom of the limiting housing (29); the shaft (33) connected to the fifth through hole (28) is provided on the top of the bearing seat (35); the shaft (33) is provided with an inner hexagonal groove (32) corresponding to the fifth through hole (28); the shaft (33) is covered with the gear (34); the clamping plates (31) at both ends are connected to the racks (25) respectively; the two racks (25) are respectively meshed with the two sides of the gear (34).

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