A deformable anti-crack impervious collector well and a method of manufacturing the same

Abstract

The application discloses a deformable anti-crack anti-seepage water collecting well and a manufacturing method thereof. The water collecting well comprises a water collecting well body made of steel and in a whole cylindrical shape; the water collecting well body is provided with, from top to bottom, a well mouth section, a corrugated section and a well bottom section; the upper end of the well mouth section is provided with a well mouth; the lower end of the well bottom section is sealed; a rubber ring is sleeved on the corrugated section and located in a groove on the outer wall of the corrugated section; the cross-sectional shape of the rubber ring is matched with the well wall corrugation of the outer wall of the corrugated section; a waterproof layer is arranged on the inner wall and the outer wall of the water collecting well body; and a protective outer mold is tightly wrapped on the outer wall of the water collecting well body. The corrugated well wall of the water collecting well body has a certain deformability, meanwhile, the steel water collecting well body can guarantee sufficient strength and pressure bearing capacity, and the multi-layer waterproof measures guarantee excellent anti-seepage and corrosion resistance of the water collecting well body.

Description

Technical Field

[0001] This invention relates to the field of water collection well technology, specifically to a deformable, crack-resistant, and seepage-proof water collection well and its manufacturing method. Background Technology

[0002] A sump is an underground water tank used to collect and store groundwater or rainwater. Currently, sumps are required in civil buildings, municipal engineering projects, and integrated utility tunnels. The three most commonly used materials for sumps are brick-concrete structures, reinforced concrete, and composite materials. However, each of these materials has certain drawbacks: brick-concrete sumps have poor quality stability, low strength, and are prone to cracking and leakage during use. They are also prone to collapse and have a short service life, making them unsuitable for basements and integrated utility tunnels. Reinforced concrete sumps, while solving the quality and strength problems of brick sumps, still struggle to completely eliminate leakage. Furthermore, they are prone to cracking when surrounding components experience uneven settlement, inevitably leading to leakage and affecting their service life. Composite material sumps, while lightweight, high-strength, and corrosion-resistant, have limited load-bearing capacity. Their performance deteriorates and ages under oxygen conditions, resulting in a short service life and making them unsuitable for deep and heavy-load applications.

[0003] In addition to the commonly used materials for water collection wells, steel water collection wells have also been proposed. For example, the utility model patent with application number CN201720135294.8 provides a prefabricated steel water collection well for integrated utility tunnels. Its main technical solutions are as follows: 1. Using prefabricated steel water collection wells accelerates construction speed and improves the safety of utility tunnel construction. Welding between prefabricated components improves the water tightness of the utility tunnel; 2. Equal-sided angle steel is pre-embedded around the reserved opening for welding with the main body of the water collection well. The water collection well is installed by welding connecting steel plates to the equal-sided angle steel in the reserved opening; 3. The main body of the water collection well is prefabricated as a whole using Q345 low alloy steel with a thickness of 14mm and the surface is treated with anti-corrosion and anti-rust. The water collection well cover is made of fiberglass material with a thickness of 5cm and a load-bearing rating of B125; 4. The installation gap between the outer wall of the water collection well and the soil is filled and fixed by injecting C40 cement slurry into the outer wall using a hydraulic 25mm small pipe.

[0004] The steel sump provided by the aforementioned patent reduces cracks caused by uneven settlement between the pre-installed integrated utility tunnel structure and the subsequently poured sump, and prevents groundwater from entering the tunnel through the gaps. However, this type of steel sump can only withstand small-scale uneven settlement. When the uneven settlement is large, the steel sump wall is prone to deformation, leading to concrete peeling. Water vapor can then enter the space between the sump wall and the concrete, corroding the sump wall. Summary of the Invention

[0005] The purpose of this invention is to provide a deformable, crack-resistant, and seepage-proof water collection well and its manufacturing method, aiming to improve the problems of poor deformability, crack resistance, seepage prevention, and corrosion resistance of existing water collection wells made of various materials and structures.

[0006] To achieve the above objectives, according to one aspect of the present invention, a deformable, crack-resistant, and seepage-proof water collection well is provided, comprising:

[0007] The main body of the water collection well is made of steel and is cylindrical in shape. The main body of the water collection well has a wellhead section, a corrugated section and a bottom section arranged sequentially from top to bottom. The upper end of the wellhead section is provided with a wellhead, and the lower end of the bottom section is sealed.

[0008] A rubber ring is fitted onto a corrugated section and located in a groove on the outer wall of the corrugated section. The cross-sectional shape of the rubber ring matches the well wall corrugations on the outer wall of the corrugated section.

[0009] Manhole covers are installed at the opening of manholes;

[0010] Waterproof layer: Both the inner and outer walls of the main body of the water collection well are provided with a waterproof layer;

[0011] The protective outer mold is tightly wrapped around the outer wall of the main body of the water collection well.

[0012] Furthermore, the wellhead section has a circular pipe section and a circular plate section. The circular plate section is located at the upper end of the circular pipe section. The outer diameter of the circular plate section is larger than the outer diameter of the circular pipe section. The circular pipe section and the circular plate section share a central axis. The wellhead is located in the middle of the circular plate section. The outer edge of the circular plate section is folded downward at a certain angle so that the outer edge of the circular plate section is firmly engaged with the reinforced concrete of the wellhead.

[0013] Furthermore, the wellhead is circular, and its diameter is smaller than the inner diameter of the circular pipe section of the wellhead. Multiple wellside support plates are evenly arranged around the wellhead along the circumference of the wellhead. The wellside support plates are right-angled triangles, and their two right-angled sides are welded to the inner wall of the circular pipe section and the lower wall of the circular plate section, respectively.

[0014] Furthermore, the upper and lower ends of the corrugated section each have a circular pipe section of a certain length, and the inner and outer diameters of the circular pipe section are the same as the inner and outer diameters of the wellhead section and the well bottom section.

[0015] Furthermore, both the protective outer mold and the rubber ring are made of natural rubber, and the cross-sectional shape of the rubber ring is a combination of an arc-shaped line segment formed by crest-trough-crest and a straight line segment of length between two crests.

[0016] Furthermore, the waterproof layer includes a polyethylene coating and an epoxy resin coating. Both the inner and outer walls of the water collection well body are coated with an epoxy resin coating, and both epoxy resin coatings are coated with a polyethylene coating.

[0017] Furthermore, the wellhead section and the corrugated section, as well as the corrugated section and the bottom section, are connected by welding. At the weld, a weld protection layer is applied, which is located inside the epoxy resin coating. The material of the weld protection layer is epoxy resin.

[0018] According to a second aspect of the present invention, the present invention provides a method for manufacturing a deformable, crack-resistant, and seepage-proof water collection well, comprising the following steps:

[0019] S100. Weld the wellhead section, corrugated section and bottom section together, and inspect the welds to ensure that there are no defects in the welds.

[0020] S200. Grind the weld seam to make its surface smooth;

[0021] S300, perform rust removal treatment on the inner and outer walls of the main body of the water collection well;

[0022] S400 After rust removal, first apply a layer of epoxy resin to the weld to form the first waterproof layer. Then apply a layer of epoxy resin to the inner and outer walls of the main body of the water collection well to form the second waterproof layer. Finally, apply a layer of polyethylene on the second waterproof layer to form the third waterproof layer.

[0023] S500, A rubber ring is fitted into the groove on the outer wall of the corrugated section;

[0024] S600: Use a protective outer mold to tightly wrap the main body of the water collection well and the rubber ring.

[0025] Furthermore, the upper and lower ends of the corrugated section each have a circular pipe section of a certain length, the inner and outer diameters of which are the same as those of the wellhead section and the bottom section. Before welding the wellhead section and the corrugated section, as well as the corrugated section and the bottom section, an auxiliary alignment device is used to align the wellhead section with the circular pipe section at the upper end of the corrugated section, and to align the bottom section with the circular pipe section at the lower end of the corrugated section.

[0026] Furthermore, the auxiliary alignment device includes a base plate and two clamping mechanisms, arranged one on the left and one on the right. Each clamping mechanism includes a support frame, a drive motor, a lead screw, a guide rod, a moving seat, an electric cylinder, and a clamping plate. The support frame is mounted on the base plate, and the lead screw and guide rod are both vertically mounted on the support frame. The lead screw is rotatably connected to the support frame. The drive motor is mounted on the support frame and connected to the lead screw. The moving seat is connected to the lead screw through a threaded hole and to the guide rod through a smooth hole. The electric cylinder is horizontally mounted on the moving seat, and the clamping plate is connected to the piston rod of the electric cylinder. The clamping plate is an arc-shaped plate, and its inner diameter is the same as the outer diameter of the corrugated circular pipe section. The inner surface of the clamping plate is a smooth plane.

[0027] When using the auxiliary alignment device to align the wellhead section, corrugated section, and well bottom section, first stack the two sections to be aligned one on top of the other, with a lifting device applying force to the upper section of the water collection well body, so that the two sections of the water collection well body are in contact with each other but not pressed together; then start the drive motor, which drives the lead screw to rotate, thereby moving the moving seat, electric cylinder, and clamping plate up and down, until the clamping plate is in the middle position in the up and down direction, aligning the two sections of the water collection well body where they meet, then start the electric cylinders of the two clamping mechanisms, which drive the clamping plates to move towards the water collection well body to be welded, until the two clamping plates clamp the water collection well body, then remove the connection between the lifting device and the upper section of the water collection well body, thus aligning the two sections of the water collection well body.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. This invention utilizes the corrugated well wall of the main body of the water collection well to achieve a certain degree of deformability, while the steel main body of the water collection well can ensure sufficient strength and pressure resistance. The multi-layer waterproof measures ensure the excellent seepage prevention and corrosion resistance of the main body of the water collection well.

[0030] 2. The present invention has a simple structure, good durability, good stability, is easy to install, and can be mass-produced. It is suitable for occasions that require greater depth, greater load-bearing capacity, and resistance to cracking and leakage.

[0031] 3. An extra layer of waterproof protection structure is installed at the weld joints of the main body of the water collection well, which effectively improves the corrosion resistance of the weld joints and makes the weld joints less prone to cracking due to corrosion. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the cross-sectional structure of the deformable, crack-resistant, and seepage-proof water collection well provided in Embodiment 1 of the present invention;

[0033] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0034] Figure 3 This is a schematic diagram of the structure connecting the wellside support plate and the wellhead section of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the protective outer mold of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the rubber ring of the present invention;

[0037] Figure 6 This is a flowchart of the manufacturing method of the deformable, crack-resistant, and seepage-proof water collection well provided in Embodiment 2 of the present invention;

[0038] Figure 7 This is a three-dimensional structural schematic diagram of the auxiliary alignment device described in Embodiment 2 of the present invention;

[0039] Figure 8 This is a top view of the auxiliary alignment device described in Embodiment 2 of the present invention;

[0040] Figure 9 This is a three-dimensional structural diagram of the clamping mechanism of the auxiliary alignment device described in Embodiment 2 of the present invention.

[0041] Reference numerals: 1. Manhole cover; 2. Manhole edge support plate; 3. Manhole opening section; 4. Corrugated section; 5. Manhole bottom section; 6. Protective outer mold; 7. Rubber ring; 8. Polyethylene coating; 9. Epoxy resin coating; 10. Concrete pad; 11. Reinforced concrete; 12. Base plate; 13. Clamping mechanism; 131. Support frame; 132. Drive motor; 133. Lead screw; 134. Guide rod; 135. Moving seat; 136. Electric cylinder; 137. Clamping plate. Detailed Implementation

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0044] Example 1

[0045] This embodiment provides a deformable, crack-resistant, and seepage-proof water collection well, such as... Figures 1-5 As shown, it includes the main body of the water collection well, the well cover 1, the rubber ring 7, and the protective outer mold 6.

[0046] like Figure 1 and Figure 3 As shown, the main body of the water collection well has a wellhead section 3, a corrugated section 4, and a well bottom section 5 arranged sequentially from top to bottom. The material of the wellhead section 3, corrugated section 4, and well bottom section 5 is Q235B. The wellhead section 3 has a circular pipe part and a circular plate part. The circular plate part is located at the upper end of the circular pipe part. The outer diameter of the circular plate part is larger than the outer diameter of the circular pipe part. The circular pipe part and the circular plate part share a central axis. A wellhead is set in the middle of the circular plate part. The wellhead is circular, and its diameter is smaller than the inner diameter of the circular pipe part of the wellhead section 3. A well cover 1 is set at the wellhead. The well cover 1 is a mesh perforated well cover. The outer edge of the circular plate part is folded down at a certain angle, such as 30 degrees, 45 degrees, 50 degrees, 60 degrees, etc., so that the outer edge of the circular plate part can be firmly engaged in the reinforced concrete 11 of the wellhead. Six well-side support plates 2 are evenly arranged around the wellhead along its circumference. The well-side support plates 2 are right-angled triangles made of Q235B material. The two right-angled sides of each support plate 2 are welded to the inner wall of the circular pipe section and the lower wall of the circular plate section, respectively. The well-side support plates 2 are used to improve the strength of the wellhead. The bottom section 5 also includes a circular pipe section and a circular plate section. The circular plate section of the bottom section 5 is located at the bottom end of its circular pipe section, sealing the lower end of the circular pipe section. The circular plate section of the bottom section 5 is set on the concrete cushion layer 10.

[0047] like Figure 1 and Figure 5 As shown, the upper and lower ends of the corrugated section 4 both have circular pipe sections of a certain length, and the inner and outer diameters of these circular pipe sections are the same as those of the circular pipe sections of the wellhead section 3 and the bottom section 5. The corrugated structure parameters of the corrugated section 4 are as follows: wavelength 100mm, wave height 68mm, and plate thickness 10-15mm. The rubber ring 7 is made of natural rubber, and its cross-sectional shape is a combination of an arc-shaped line segment formed by wave crest-valley-wave crest and a straight line segment of length between two wave crests. The rubber ring 7 is fitted onto the corrugated section 4 and located in the groove on the outer wall of the corrugated section 4. The cross-sectional shape of the rubber ring 7 matches the well wall corrugations of the outer wall of the corrugated section 4.

[0048] like Figure 1 , Figure 2 and Figure 4As shown, the protective outer mold 6 is made of natural rubber and is 10mm thick. The protective outer mold 6 tightly wraps around the main body of the water collection well and each rubber ring 7. A waterproof layer is provided on the inner and outer walls of the water collection well body. The waterproof layer includes a polyethylene coating 8 and an epoxy resin coating 9. Both the inner and outer walls of the water collection well body are coated with an epoxy resin coating 9, and a polyethylene coating 8 is applied over each of these epoxy resin coatings 9. The wellhead section 3 and the corrugated section 4, as well as the corrugated section 4 and the well bottom section 5, are connected by welding. A weld protection layer is also applied at the weld joint, located inside the epoxy resin coating 9. The weld protection layer is made of epoxy resin. This additional waterproof protective structure at the weld joint effectively improves the corrosion resistance of the weld joint, making it less prone to cracking due to corrosion.

[0049] Working principle of the invention: The main body of the water collection well of the present invention is made of steel, which has the advantages of high strength and resistance to cracking. The main body of the water collection well of the present invention has a corrugated section 4, which has a corrugated well wall. This corrugated structure can deform under external force, thereby offsetting the deformation caused by uneven settlement of the surrounding structure, and effectively reducing cracking of the main body of the water collection well due to deformation. A rubber ring 7 is provided in the groove of the outer wall of the corrugated section 4, which can prevent the soil around the water collection well from penetrating the corrugated part of the well wall under the action of soil pressure. At the same time, the elasticity of the rubber ring 7 also ensures that the deformation of the corrugated section 4 will not have a significant impact. A waterproof layer is provided on the inner and outer walls of the main body of the water collection well, which can effectively prevent water and oxygen from corroding the main body of the water collection well. A protective outer mold 6 made of natural rubber is wrapped around the waterproof layer of the steel sump body. This protective outer mold 6 can prevent the surrounding soil from damaging the waterproof layer of the sump body and can block groundwater. It is equivalent to setting up an additional waterproof barrier for the sump body, further enhancing the anti-corrosion and defense function of the sump body.

[0050] In summary, this invention utilizes the corrugated well wall of the water collection well body to achieve a certain degree of deformability, while the steel water collection well body ensures sufficient strength and pressure resistance. Multiple layers of waterproofing measures guarantee excellent seepage prevention and corrosion resistance of the water collection well body. This invention has a simple structure, good durability, good stability, is easy to install, and can be mass-produced. It is suitable for applications requiring greater depth, higher load-bearing capacity, and resistance to cracking and leakage.

[0051] Example 2

[0052] This embodiment provides a method for manufacturing a deformable, crack-resistant, and seepage-proof water collection well, which is used in the manufacturing of the deformable, crack-resistant, and seepage-proof water collection well provided in Embodiment 1. Figure 6 As shown, it includes the following steps:

[0053] S100. Weld the wellhead section 3, corrugated section 4, and bottom section 5 together, and inspect the welds to ensure they are free of defects. Before welding the wellhead section 3 and corrugated section 4, and the corrugated section 4 and bottom section 5, use an auxiliary alignment device to align the upper circular pipe section of the wellhead section 3 with the upper circular pipe section of the corrugated section 4, and align the bottom section 5 with the lower circular pipe section of the corrugated section 4.

[0054] like Figure 7 , Figure 8 and Figure 9 As shown, the auxiliary alignment device includes a base plate 12 and two clamping mechanisms 13, arranged one on the left and one on the right. Each clamping mechanism 13 includes a support frame 131, a drive motor 132, a lead screw 133, a guide rod 134, a movable seat 135, an electric cylinder 136, and a clamping plate 137. The support frame 131 is vertically mounted on the base plate 12. The lead screw 133 and the guide rod 134 are both vertically mounted on the support frame 131. The lead screw 133 is rotatably connected to the support frame 131. The drive motor 132 is mounted on the support frame 131 and connected to the lead screw 133. The movable seat 135 is connected to the lead screw 133 through a threaded hole and to the guide rod 134 through a through-hole. The electric cylinder 136 is horizontally mounted on the movable seat 135. The clamping plate 137 is connected to the piston rod of the electric cylinder 136. The clamping plate 137 is an arc-shaped plate, and its inner diameter is the same as the outer diameter of the corrugated section 4 circular pipe section. The inner surface of the clamping plate 137 is a smooth plane. The clamping plate 137 of the clamping mechanism 13 is detachably connected to the piston rod of the electric cylinder 136, which facilitates the replacement of clamping plates 137 of different sizes to adapt to the welding of water collection well bodies of different sizes. The two clamping plates 137 of the two clamping mechanisms 13 are symmetrical to each other, such as... Figure 8 As shown.

[0055] When aligning the wellhead section 3, corrugated section 4, and well bottom section 5 using the auxiliary alignment device, first stack the two sections to be aligned one on top of the other, with a lifting device applying force to the upper section of the water collection well body, so that the two sections of the water collection well body are in contact with each other but not pressed together. Then, start the drive motor 132, which drives the lead screw 133 to rotate, thereby driving the moving seat 135, electric cylinder 136, and clamping plate 137 to move up and down. Move to the middle position of the clamping plate 137 in the vertical direction to align the two sections of the water collection well body. Start the electric cylinders 136 of the two clamping mechanisms 13, which drive the clamping plate 137 to move towards the water collection well body to be welded, until the two clamping plates 137 clamp the water collection well body. Then, remove the connection between the lifting device and the upper section of the water collection well body, thus aligning the two sections of the water collection well body.

[0056] S200. Grind the weld seam to make its surface smooth.

[0057] S300. Rust removal treatment is performed on the inner and outer walls of the main body of the water collection well. Grinding the welds and rust removal are both essential steps to ensure the quality of the waterproof layer construction.

[0058] After rust removal (S400), first apply a layer of epoxy resin to the weld seams to form the first waterproof layer. Then, apply another layer of epoxy resin to the inner and outer walls of the main body of the water collection well to form the second waterproof layer. Finally, apply a layer of polyethylene on top of the second waterproof layer to form the third waterproof layer. This triple waterproof barrier effectively protects the steel of the main body of the water collection well from corrosion.

[0059] S500, A rubber ring 7 is fitted into the groove on the outer wall of the corrugated section 4.

[0060] S600, use a protective outer mold 6 to tightly wrap the main body of the water collection well and the rubber ring 7.

[0061] The water collection wells manufactured using this method have corrugated walls, giving them a degree of deformability. They also feature multi-layered waterproofing measures, ensuring excellent seepage prevention and corrosion resistance. Furthermore, this method allows for the mass prefabrication of water collection wells, effectively increasing manufacturing and installation speed and helping to shorten the construction cycle.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A deformable, crack-resistant, and seepage-proof water collection well, characterized in that, include: The main body of the water collection well is made of steel and is cylindrical in shape. The main body of the water collection well has a wellhead section (3), a corrugated section (4) and a bottom section (5) arranged sequentially from top to bottom. The wellhead section (3) has a wellhead at its upper end and the bottom section (5) is sealed at its lower end. The wellhead section (3) has a circular pipe part and a circular plate part. The circular plate part is located at the upper end of the circular pipe part. The outer diameter of the circular plate part is larger than the outer diameter of the circular pipe part. The circular pipe part and the circular plate part share a central axis. The wellhead is located in the middle of the circular plate part. The outer edge of the circular plate part is folded down at a certain angle so that the outer edge of the circular plate part is firmly engaged in the reinforced concrete of the wellhead. A rubber ring (7) is fitted onto the corrugated section (4) and located in the groove on the outer wall of the corrugated section (4). The cross-sectional shape of the rubber ring (7) matches the well wall corrugations on the outer wall of the corrugated section (4). The cross-sectional shape of the rubber ring (7) is a combination of an arc-shaped line segment formed by wave crest-wave trough-wave crest and a straight line segment of length between two wave crests. Manhole cover (1), installed at the manhole opening; Waterproof layer: A waterproof layer is provided on both the inner and outer walls of the main body of the water collection well; the waterproof layer includes a polyethylene coating (8) and an epoxy resin coating (9); an epoxy resin coating (9) is applied to both the inner and outer walls of the main body of the water collection well, and a polyethylene coating (8) is applied to both epoxy resin coatings (9); The outer mold (6) is tightly wrapped around the outer wall of the main body of the water collection well.

2. The deformable, crack-resistant, and seepage-proof water collection well according to claim 1, characterized in that, The wellhead is circular, and its diameter is smaller than the inner diameter of the circular pipe section (3). Multiple wellside support plates (2) are evenly arranged around the wellhead along the circumference of the wellhead. The wellside support plate (2) is a right triangle, and its two right-angled sides are welded to the inner wall of the circular pipe section and the lower wall of the circular plate section, respectively.

3. The deformable, crack-resistant, and seepage-proof water collection well according to claim 1, characterized in that, The upper and lower ends of the corrugated section (4) each have a circular pipe section of a certain length, and the inner and outer diameters of the circular pipe section are the same as those of the wellhead section (3) and the bottom section (5).

4. The deformable, crack-resistant, and seepage-proof water collection well according to claim 1, characterized in that, The protective outer mold (6) and the rubber ring (7) are both made of natural rubber.

5. A deformable, crack-resistant, and seepage-proof water collection well according to claim 1, characterized in that, The wellhead section (3) and the corrugated section (4), as well as the corrugated section (4) and the bottom section (5) are connected by welding. At the weld, a weld protection layer is also applied. The weld protection layer is located inside the epoxy resin coating (9). The material of the weld protection layer is epoxy resin.

6. A method for manufacturing a deformable, crack-resistant, and seepage-proof water collection well, used for manufacturing the deformable, crack-resistant, and seepage-proof water collection well according to any one of claims 1-5, characterized in that, Includes the following steps: S100. Weld the wellhead section (3), corrugated section (4) and bottom section (5) together and inspect the welds to ensure that there are no defects in the welds. S200. Grind the weld seam to make its surface smooth; S300, perform rust removal treatment on the inner and outer walls of the main body of the water collection well; S400 After rust removal, first apply a layer of epoxy resin to the weld to form the first waterproof layer. Then apply a layer of epoxy resin to the inner and outer walls of the main body of the water collection well to form the second waterproof layer. Finally, apply a layer of polyethylene on the second waterproof layer to form the third waterproof layer. S500, A rubber ring (7) is fitted into the groove on the outer wall of the corrugated section (4); S600, Use a protective outer mold (6) to tightly wrap the main body of the water collection well and the rubber ring (7).

7. The method for manufacturing a deformable, crack-resistant, and seepage-proof water collection well according to claim 6, characterized in that, The upper and lower ends of the corrugated section (4) each have a circular pipe section of a certain length. The inner and outer diameters of the circular pipe section are the same as the inner and outer diameters of the wellhead section (3) and the bottom section (5). Before welding the wellhead section (3) and the corrugated section (4) and the bottom section (5), an auxiliary alignment device is used to align the wellhead section (3) with the circular pipe section at the upper end of the corrugated section (4) and to align the bottom section (5) with the circular pipe section at the lower end of the corrugated section (4).

8. The method for manufacturing a deformable, crack-resistant, and seepage-proof water collection well according to claim 7, characterized in that, The auxiliary alignment device includes a base plate (12) and two clamping mechanisms (13), which are arranged one on the left and one on the right. Each clamping mechanism (13) includes a support frame (131), a drive motor (132), a lead screw (133), a guide rod (134), a moving seat (135), an electric cylinder (136), and a clamping plate (137). The support frame (131) is mounted on the base plate (12), and the lead screw (133) and the guide rod (134) are both vertically mounted on the support frame (131). The lead screw (133) and the support frame (137) are aligned. 1) Rotary connection, the drive motor (132) is mounted on the support frame (131) and connected to the lead screw (133); the movable seat (135) is connected to the lead screw (133) through a threaded hole and connected to the guide rod (134) through a light hole; the electric cylinder (136) is horizontally mounted on the movable seat (135), the clamping plate (137) is connected to the piston rod of the electric cylinder (136), the clamping plate (137) is an arc plate, and its inner diameter is the same as the outer diameter of the corrugated section (4) circular pipe section, and the inner surface of the clamping plate (137) is a smooth plane; When using the auxiliary alignment device to align the wellhead section (3), corrugated section (4), and well bottom section (5), first stack the two sections of the structure to be aligned one on top of the other, and use a lifting device to apply force to the upper section of the water collection well body so that the two sections of the water collection well body contact each other but do not press against each other; then start the drive motor (132), the drive motor (132) drives the lead screw (133) to rotate, and then drive the moving seat (135), electric cylinder (136) and clamping plate (137) to move up and down, and move to the middle position of the clamping plate (137) in the vertical direction to align the position where the two sections of the water collection well body are joined. Start the electric cylinder (136) of the two clamping mechanisms (13), the electric cylinder (136) drives the clamping plate (137) to move towards the water collection well body to be welded, until the two clamping plates (137) clamp the water collection well body and then remove the connection between the lifting device and the upper section of the water collection well body, so that the two sections of the water collection well body can be aligned.

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