An assembly method and structure for connecting an inspection well and a drainage pipeline

Abstract

The present invention discloses an assembly method and structure for connecting an inspection well with a drainage pipe. The method includes: dividing the inspection well into an upper outer well and a middle inner well; dividing the drainage pipe into two straight pipe sections; arranging a supporting groove on the lower outer well; arranging connecting well pieces on each straight pipe section; inserting and connecting the straight pipe sections into the supporting groove through the connecting well pieces, and assembling the two straight pipe sections at any angle distribution on the lower outer well by rotating the two straight pipe sections; splicing and inserting supplementary well pieces between adjacent connecting well pieces through a socket-and-spigot structure and inserting and connecting them into the supporting groove, so that the connecting well pieces and the supplementary well pieces form the middle inner well; sleeving the upper outer well on the middle inner well, fixedly connecting the connecting well pieces and the supplementary well pieces to the upper outer well through a clamping structure, arranging a drip table on the upper outer well and hermetically connecting it with the middle inner well to connect the drainage pipes arranged at any angle to the inspection well. The present invention is applicable to the assembly construction of drainage pipes with non-standard corners on inspection wells.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly relates to an assembly method and structure for connecting an inspection well and a drainage pipe Background Art

[0002] Inspection wells are provided for the maintenance of power supply, water supply, drainage, sewage discharge, communication, cable TV, gas pipes, street lamp lines, etc. of urban underground infrastructure, and are convenient for installation. They are generally set at the intersections of drainage pipes. That is, at the intersection of the inspection well and the drainage pipe, the drainage pipe usually has standard angles such as 90 degrees and 180 degrees. A finished drainage pipe with a corresponding standard angle can be selected and assembled and connected to the inspection well. However, when the drainage pipe has a non-standard angle such as 60 degrees or 135 degrees, since there is no finished drainage pipe with this non-standard angle, it cannot be assembled on the inspection well. In view of this situation, a common practice in this field is to realize the assembly construction of the inspection well and the drainage pipe through cast-in-place concrete inspection wells. Its disadvantages are that after the inspection well is excavated, it still needs to go through complex processes such as cushion layer, waterproofing, steel bars, templates, concrete pouring, and waterproofing. Not only are the processes complicated and time-consuming, the construction efficiency is low and the labor cost is high, but there is also a safety risk of collapse of the inspection well foundation pit during the construction of the concrete inspection well, and the cost of the concrete inspection well after construction is relatively high Summary of the Invention

[0003] The purpose of the present invention is to provide an assembly method and structure for connecting an inspection well and a drainage pipe, so as to solve the problem that a drainage pipe with a non-standard angle at the intersection of the inspection well and the drainage pipe cannot be assembled on the inspection well, and to solve the problems of high assembly construction cost, low efficiency, and high safety risk of a cast-in-place concrete inspection well and a drainage pipe with a non-standard angle

[0004] In order to solve the above technical problems, the present invention provides an assembly method for connecting an inspection well and a drainage pipe. The inspection well is a circular well, and the drainage pipe is a circular pipe

[0005] The inspection well is divided into a lower outer well, an upper outer well, and a middle inner well located between the lower outer well and the upper outer well [[ID=2~1]]

[0006] The drainage pipe is divided into two straight pipe segments

[0007] A circularly distributed supporting groove is transversely arranged in the well wall of the lower outer well

[0008] An arc-shaped connecting well piece is provided through each straight pipe segment at one port perpendicular to the straight pipe segment, and the connecting well pieces are linearly distributed on both sides of the straight pipe segment. The area of the connecting well piece is larger than the area formed by the circle where the diameter of the straight pipe segment is located

[0009] Each straight pipe section is inserted into the supporting groove connected to the lower outer well through the connecting well plate on it. The angle between the two straight pipe sections is adjusted by rotating the two straight pipe sections so that the corresponding connecting well plates slide in the supporting groove of the lower outer well. The two straight pipe sections can be distributed and assembled on the lower outer well at any angle.

[0010] A circular arc-shaped gap-filling well piece is spliced between adjacent connecting well pieces through a socket structure, and the gap-filling well piece is extended and inserted into a supporting groove connected to the lower outer well, so that the connecting well piece and the gap-filling well piece form a closed connection in the middle inner well;

[0011] The upper outer well is sleeved on the middle inner well, and the connecting well piece and the gap-filling well piece are fixedly connected to the upper outer well through a clamping structure. A circularly distributed dripping platform is horizontally arranged in the well wall of the upper outer well. The dripping platform is arranged above the clamping structure, and the upper end face of the middle inner well is pressed against the lower surface of the dripping platform and sealed to connect the upper outer well to the middle inner well and connect it to the drainage pipe, so that the drainage pipe set at any angle can be connected to the inspection well composed of the upper and lower outer wells and the middle inner well.

[0012] Furthermore, the present invention provides an assembly method for connecting an inspection well with a drainage pipe, wherein the socket structure includes a socket, and the socket is arranged on the end face in the width direction of the connecting well plate or the gap-filling well plate, and the side without the socket and the side with the socket in the connecting well plate and the gap-filling well plate are connected by interference fit.

[0013] Furthermore, the present invention provides an assembly method for connecting an inspection well with a drainage pipe, wherein the snap-fit structure includes a snap-fitting connected snap-fit strip and an annular groove, wherein the snap-fit strip is arranged on the connecting well plate and the gap-filling well plate or is arranged in the well wall of the upper outer well, and the annular groove is arranged in the well wall of the upper outer well or is arranged on the connecting well plate and the gap-filling well plate.

[0014] Furthermore, in the assembly method for connecting the inspection well with the drainage pipe provided by the present invention, the upper surface of the dripping platform is a downwardly inclined slope.

[0015] Furthermore, the present invention provides an assembly method for connecting the inspection well with the drainage pipe, wherein the dripping platform and the inner well are sealed and connected by glue.

[0016] Furthermore, the present invention provides an assembly method for connecting an inspection well with a drainage pipe, in which the gap between the middle inner well and the supporting groove is filled with asphalt hemp inlay to fit the outer wall of the middle inner well onto the inner walls of the upper and lower outer wells.

[0017] Furthermore, the assembly method for connecting the inspection well and the drainage pipe provided by the present invention fits the contact parts of the outer walls of the connecting well plate and the gap-filling well plate with the inner walls of the upper and lower outer wells and seals them with glue.

[0018] In order to solve the above technical problems, the present invention also provides an assembly structure in which an inspection well is connected to a drainage pipe, wherein the inspection well is a circular well and the drainage pipe is a circular pipe;

[0019] The inspection well includes a lower outer well and an upper outer well distributed vertically at intervals, and a middle inner well connected to the upper and lower outer wells and connected to the drainage pipe. The diameter of the middle inner well is smaller than that of the upper and lower outer wells. The upper and lower outer wells are sealed and sleeved on the middle inner well.

[0020] The inner well includes a connecting well plate provided on the drainage pipe and a gap filling well plate sealed and connected between adjacent connecting well plates;

[0021] The drainage pipe includes two straight pipe sections distributed at arbitrary angles on the upper and lower outer wells, each straight pipe section is perpendicular to one end of the straight pipe section and is provided with an arc-shaped connecting well plate, the connecting well plates are linearly distributed on both sides of the straight pipe section, and the area of the connecting well plate is larger than the area formed by the circle of the diameter of the straight pipe section;

[0022] The two straight pipe sections are respectively inserted into the supporting groove of the lower outer well through their respective connecting well plates. The two straight pipe sections can slide in the supporting groove of the lower outer well through their respective connecting well plates to adjust the angle between the two straight pipe sections so that the drainage pipes are sealed and connected at any angle and assembled on the upper and lower outer wells;

[0023] The arc-shaped gap-filling well pieces are spliced between adjacent connected well pieces through a socket structure, and the gap-filling well pieces extend and are inserted into the supporting groove connected to the lower outer well;

[0024] The connecting well plate and the gap-filling well plate are fixedly connected to the upper outer well via a clamping structure;

[0025] A circular dripping platform is horizontally arranged inside the well wall of the upper outer well. The dripping platform is located above the socket structure and is against and sealed against the middle inner well.

[0026] Furthermore, the present invention provides an assembly structure for connecting an inspection well with a drainage pipe, wherein the socket structure includes a socket, and the socket is arranged on the end face in the width direction of the connecting well plate or the gap-filling well plate, and the side without the socket and the side with the socket in the connecting well plate and the gap-filling well plate are connected by interference fit.

[0027] Furthermore, the present invention provides an assembly structure for connecting the inspection well with the drainage pipe, and the snap-in structure includes a snap-in strip and an annular groove that are snap-fitted together. The snap-in strip is arranged on the connecting well plate and the gap-filling well plate or in the well wall of the upper outer well, and the annular groove is arranged in the well wall of the upper outer well or on the connecting well plate and the gap-filling well plate.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides an assembly method and structure for connecting an inspection well with a drainage pipe, wherein two straight pipe sections with connecting well plates are installed in the supporting groove of the lower outer well, and the angle between the two straight pipe sections is adjusted by rotating the two straight pipe sections to make the corresponding connecting well plates slide in the supporting groove of the lower outer well, so that the two straight pipe sections can be assembled on the lower outer well at arbitrary angles, and a middle inner well is formed by splicing the gap-filling well plate and the connecting well plate, and the upper outer well is connected to the middle inner well to form a complete inspection well. Therefore, at the intersection and connection of the inspection well and the drainage pipe, it is possible to assemble the drainage pipe distributed at arbitrary angles on the inspection well.

[0030] The assembly method and structure for connecting an inspection well with a drainage pipe provided by the present invention can set the drainage pipe to be assembled on the inspection well at any angle, and is particularly suitable for the assembly construction of drainage pipes with non-standard angles on the inspection well.

[0031] The assembly method and structure for connecting the inspection well and the drainage pipe provided by the present invention replace the assembly construction of the cast-in-place concrete inspection well and the drainage pipe with non-standard corners, and have the effects of low cost, high efficiency and low safety risk compared with cast-in-place construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of an assembly structure in which an inspection well is connected to a drainage pipe;

[0033] Figure 2 yes Figure 1 Cross-section at AA in the middle;

[0034] Figure 3 It is a structural diagram of the straight pipe section and the connecting well section of the drainage pipeline;

[0035] Figure 4 This is a schematic diagram of the structure of a smaller gap-filling well piece;

[0036] Figure 5 This is a schematic diagram of the structure of a larger gap-filling well piece;

[0037] As shown in the figure:

[0038] 100, inspection well, 110, lower outer well, 111, support groove, 120, upper outer well, 121, ring groove, 122, dripping platform, 130, middle inner well, 131, connecting well plate, 132, gap filling well plate, 133, socket, 134, clamping strip, 140, asphalt hemp inlay;

[0039] 200. Drainage pipe, 210. Straight pipe section. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are all in a very simplified form and are not accurately scaled, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0041] Please refer to Figures 1 to 5 The embodiment of the present invention provides an assembly method for connecting an inspection well with a drainage pipe, which may include:

[0042] Step 301 , dividing the inspection well 100 into a lower outer well 110 , an upper outer well 120 and a middle inner well 130 located between the lower outer well 110 and the upper outer well 120 ; wherein the inspection well 100 is a circular well.

[0043] Step 302 : Divide the drainage pipe 200 into two straight pipe sections 210 ; wherein the drainage pipe 200 is a circular pipe.

[0044] Step 303, please refer to Figures 1 to 2 A circular supporting groove 111 is horizontally arranged in the wall of the lower outer well 110.

[0045] Step 304, please refer to Figures 2 to 3 Each straight pipe section 210 is provided with an arc-shaped connecting well plate 131 intersecting one end of the straight pipe section 210, perpendicular to the straight pipe section 210. The connecting well plates 131 are arranged linearly on both sides of the straight pipe section 210. The area of the connecting well plates 131 is larger than the area of the circle formed by the diameter of the straight pipe section 210. In other words, the connecting well plates 131 are larger than the intersection line between the inspection well 100 and the drainage pipe 200, and the connecting well plates 131 surround the straight pipe section 210.

[0046] Step 305, please refer to Figures 1 to 2 , insert each straight pipe section 210 into the supporting groove 111 connected to the lower outer well 110 through the connecting well piece 131 thereon, and adjust the angle between the two straight pipe sections 210 by rotating the two straight pipe sections 210 so that the corresponding connecting well piece 131 slides in the supporting groove 111 of the lower outer well 110, so that the drainage pipe 200 with the two straight pipe sections 210 distributed at any angle can be assembled on the lower outer well 110.

[0047] Step 306, please refer to Figure 1 、 Figure 4 and Figure 5 An arc-shaped gap-filling well piece 132 is spliced between adjacent connecting well pieces 131 through a socket structure, and the gap-filling well piece 132 is extended and inserted into the supporting groove 111 connected to the lower outer well 110, so that the connecting well piece 131 and the gap-filling well piece 132 form a closed connection in the middle inner well 130.

[0048] The socket structure includes a socket 133, which is provided on the widthwise end face of the connecting well plate 131 or the gap-filling well plate 132. The connecting well plate 131 or the gap-filling well plate 132, whichever does not have the socket 133, is connected by an interference fit with the other side having the socket 133. That is, the wall thickness of the connecting well plate 131 or the gap-filling well plate 132 without the socket 133 is connected by an interference fit with the gap-filling well plate 132 or the connecting well plate 131 with the socket 133.

[0049] Step 307, please refer to Figures 1 to 2 , the upper outer well 120 is sleeved on the middle inner well 130, and the connecting well piece 131 and the gap-filling well piece 132 are fixedly connected to the upper outer well 120 through a clamping structure. A circularly distributed dripping platform 122 is horizontally arranged in the well wall of the upper outer well 120, and the dripping platform 122 is arranged above the clamping structure. The upper end face of the middle inner well 130 is pressed against the lower surface of the dripping platform 122 and sealed to connect the upper outer well 120 to the middle inner well 130 and connect it to the drainage pipe 200, so that the drainage pipe 200 set at any angle is connected to the inspection well 100 composed of the upper and lower outer wells 110 and the middle inner well 130.

[0050] Step 308: Perform a water storage test on the inner well 130. If there is leakage, repair the leakage with waterproof glue.

[0051] In step 309, in order to make the diameters of the inspection wells 100 equal, a layer of middle and outer tubes can be bonded to the outer wall of the middle inner well 130. The combination of the middle and outer tubes and the middle inner well 130 can further improve the sealing effect and prevent water leakage.

[0052] Please refer to Figures 2 to 5 The snap-fit structure includes a snap-fitting snap-fitting snap-fit strip 134 and an annular groove 121. The snap-fit strip 134 is disposed on the connecting well plate 131 and the gap-filling well plate 132, or within the wall of the upper outer well 120. The annular groove 121 is disposed within the wall of the upper outer well 120, or on the connecting well plate 131 and the gap-filling well plate 132. The snap-fitting strip 134 is disposed transversely along the outer walls of the connecting well plate 131 and the gap-filling well plate 132. The snap-fitting strip 134 forms a circular shape on the inner well 130 formed by the connecting well plate 131 and the gap-filling well plate 132. The connecting well plate 131 is comprised of two pieces, and the gap-filling well plate 132 is comprised of two pieces of different sizes. The gap-filling well plate 132 is formed by adjusting the two straight pipe sections 210 to the desired installation angle and then cutting the pieces. For example, a round pipe that can be nested within the lower outer well is prepared, and the gap-filling well plate 132 is constructed by cutting the round pipe.

[0053] Please refer to Figure 2In order to avoid water accumulation on the dripping platform 122 and affecting the connection performance between the inner well 130 and the upper outer well 120 and the dripping platform 122, an embodiment of the present invention provides an assembly method for connecting the inspection well and the drainage pipe, wherein the upper surface of the dripping platform 122 is a downwardly inclined slope.

[0054] In order to improve the sealing performance, the embodiment of the present invention provides an assembly method for connecting the inspection well with the drainage pipe, in which the drip platform 122 and the inner well 130 are sealed and connected by glue.

[0055] To improve the sealing fit between the central inner well 130 and the upper and lower outer wells, the assembly method for connecting an inspection well to a drainage pipe provided in an embodiment of the present invention fills the gap between the central inner well 130 and the support groove 111 with asphalt hemp insert 140, thereby fitting the outer wall of the central inner well 130 to the inner walls of the upper and lower outer wells 110. Asphalt hemp insert 140 can improve the waterproof performance of the joint.

[0056] To improve sealing performance, the assembly method for connecting an inspection well to a drainage pipe provided in an embodiment of the present invention adheres the outer walls of the connecting well plate 131 and the gap-filling well plate 132 to the inner walls of the upper and lower outer wells 110, and seals them with glue. The glue is waterproof.

[0057] Please refer to Figures 1 to 5, an embodiment of the present invention further provides an assembly structure for connecting a inspection well 100 and a drainage pipe 200, that is, an assembly structure formed according to the assembly method of the above embodiment. The inspection well 100 is a circular well, and the drainage pipe 200 is a circular pipe. The inspection well 100 includes a lower outer well 110 and an upper outer well 120 that are vertically spaced apart, and a middle inner well 130 that is connected to the upper and lower outer wells 110 and communicates with the drainage pipe 200. The diameter of the middle inner well 130 is smaller than the diameter of the upper and lower outer wells 110, and the upper and lower outer wells 110 are sealingly sleeved on the middle inner well 130; the middle inner well 130 includes a connecting well piece 131 that is communicatively arranged on the drainage pipe 200 and a supplementary well piece 132 that is sealingly connected between adjacent connecting well pieces 131; the drainage pipe 200 includes two straight pipe segments 210 that are distributed at any angle on the upper and lower outer wells 110. Each straight pipe segment 210 is provided with an arc-shaped connecting well piece 131 that penetrates through a port perpendicular to the straight pipe segment 210. The connecting well pieces 131 are linearly distributed on both sides of the straight pipe segment 210, and the area of the connecting well piece 131 is larger than the area formed by the circle where the diameter of the straight pipe segment 210 is located; the two straight pipe segments 210 are respectively inserted and connected into the supporting groove 111 of the lower outer well 110 through their respective connecting well pieces 131. The two straight pipe segments 210 can slide in the supporting groove 111 of the lower outer well 110 through their respective connecting well pieces 131 to adjust the included angle between the two straight pipe segments 210 so that the drainage pipe 200 is hermetically connected and assembled on the upper and lower outer wells 110 at any angle; an arc-shaped supplementary well piece 132 is spliced between adjacent connecting well pieces 131 through a socket structure, and the supplementary well piece 132 extends and is inserted and connected into the supporting groove 111 of the lower outer well 110; the connecting well piece 131 and the supplementary well piece 132 are fixedly connected to the upper outer well 120 through a clamping structure; a circular drip table 122 is horizontally arranged inside the well wall of the upper outer well 120, and the drip table 122 is located above the socket structure. The drip table 122 abuts against and is sealingly connected to the middle inner well 130.

[0058] Please refer to Figure 1 , for the assembly structure of connecting the inspection well and the drainage pipe provided by the embodiment of the present invention, the socket structure includes a socket 133, and the socket 133 is arranged on the end surface in the width direction of the connecting well piece 131 or the supplementary well piece 132. The side of the connecting well piece 131 and the supplementary well piece 132 without the socket 133 is connected with the side with the socket 133 in an interference fit.

[0059] Please refer to Figure 2The embodiment of the present invention provides an assembly structure for connecting the inspection well and the drainage pipe, and the snap-in structure includes a snap-in strip 134 and an annular groove 121 that are snap-fitted together. The snap-in strip 134 is arranged on the connecting well piece 131 and the gap-filling well piece 132 or on the well wall of the upper outer well 120, and the annular groove 121 is arranged on the well wall of the upper outer well 120 or on the connecting well piece 131 and the gap-filling well piece 132.

[0060] The assembly method and structure for connecting an inspection well and a drainage pipe provided in an embodiment of the present invention are as follows: two straight pipe sections 210 with a connecting well piece 131 are installed in the supporting groove 111 of the lower outer well 110; the angle between the two straight pipe sections 210 is adjusted by rotating the two straight pipe sections 210 so that the corresponding connecting well piece 131 slides in the supporting groove 111 of the lower outer well 110, so that the two straight pipe sections 210 can be assembled on the lower outer well 110 at any angle; the middle inner well 130 is formed by splicing the gap-filling well piece 132 and the connecting well piece 131; the upper outer well 120 is connected to the middle inner well 130, so that the upper and lower outer wells 110 and the middle inner well 130 form a complete inspection well 100, thereby realizing the assembly of the drainage pipe 200 distributed at any angle on the inspection well 100 at the intersection and connection between the inspection well 100 and the drainage pipe 200.

[0061] The assembly method and structure for connecting the inspection well and the drainage pipe provided in the embodiment of the present invention replaces the assembly construction of the cast-in-place concrete inspection well 100 and the drainage pipe 200 with a non-standard angle, and has the effects of low cost, high efficiency and low safety risk compared with cast-in-place construction.

[0062] The assembly method and structure for connecting the inspection well and the drainage pipe provided in the embodiment of the present invention can set the drainage pipe 200 to be assembled on the inspection well 100 at any angle, and is particularly suitable for the assembly and construction of the drainage pipe 200 with non-standard angles such as 60 degrees, 75 degrees, 135 degrees, and 275 degrees on the inspection well 100.

[0063] The assembly method and structure for connecting an inspection well with a drainage pipe provided in the embodiment of the present invention can discharge water through the drainage pipe 200 when the water level in the well is too high.

[0064] The assembly method and structure for connecting the inspection well and the drainage pipe provided in the embodiment of the present invention are not limited to the two-way pipe with any angle formed by two straight pipe sections 210, but can also be applied to the three-way pipe with any angle distribution formed by three straight pipe sections 210. In this case, there are also three well-filling pieces 132.

[0065] The present invention is not limited to the above specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. Thus, if these modifications and changes of the present invention are within the scope of the claims of the present invention, the present invention also intends to include these modifications and changes.

Claims

1. A method for assembling a manhole connected to a drainage pipe, characterized in that: The inspection well is a circular well, and the drainage pipe is a circular pipe; The inspection wells are divided into the lower outer well, the upper outer well and the middle inner well located between the lower outer well and the upper outer well; Divide the drainage pipe into two straight pipe sections; Annular supporting grooves are arranged transversely in the wall of the lower outer well; A circular arc-shaped connecting well plate is provided on each straight pipe section, perpendicular to one end of the straight pipe section, and the connecting well plates are linearly distributed on both sides of the straight pipe section. The area of the connecting well plate is larger than the area formed by the circle of the diameter of the straight pipe section. Each straight pipe section is inserted into the supporting groove connected to the lower outer well through the connecting well plate on it. The angle between the two straight pipe sections is adjusted by rotating the two straight pipe sections so that the corresponding connecting well plates slide in the supporting groove of the lower outer well. The two straight pipe sections can be distributed and assembled on the lower outer well at any angle. A circular arc-shaped gap-filling well piece is spliced between adjacent connecting well pieces through a socket structure, and the gap-filling well piece is extended and inserted into a supporting groove connected to the lower outer well, so that the connecting well piece and the gap-filling well piece form a closed connection in the middle inner well; The upper outer well is sleeved on the middle inner well, and the connecting well piece and the gap-filling well piece are fixedly connected to the upper outer well through a clamping structure. A circularly distributed dripping platform is horizontally arranged in the well wall of the upper outer well. The dripping platform is arranged above the clamping structure, and the upper end face of the middle inner well is pressed against the lower surface of the dripping platform and sealed to connect the upper outer well to the middle inner well and connect it to the drainage pipe, so that the drainage pipe set at any angle can be connected to the inspection well composed of the upper and lower outer wells and the middle inner well.

2. The assembly method for connecting an inspection well with a drainage pipe according to claim 1, characterized in that: The socket structure includes a socket, which is arranged on the end face of the connecting well plate or the gap-filling well plate in the width direction. The connecting well plate and the gap-filling well plate, the side without the socket and the side with the socket, are connected by interference fit.

3. The assembly method for connecting an inspection well with a drainage pipe according to claim 1, characterized in that: The snap-fit structure includes a snap-fitting connection between a snap-fitting strip and an annular groove. The snap-fitting strip is arranged on the connecting well piece and the gap-filling well piece or in the well wall of the upper outer well. The annular groove is arranged in the well wall of the upper outer well or on the connecting well piece and the gap-filling well piece.

4. The assembly method for connecting an inspection well with a drainage pipe according to claim 1, characterized in that: The upper surface of the dripping platform is a downwardly inclined slope.

5. The assembly method for connecting an inspection well with a drainage pipe according to claim 1, characterized in that: Connect the dripping table and the inner well with glue.

6. The assembly method for connecting an inspection well with a drainage pipe according to claim 1, characterized in that: The gap between the middle inner well and the supporting groove is filled with asphalt hemp inlay to fit the outer wall of the middle inner well onto the inner walls of the upper and lower outer wells.

7. The assembly method for connecting an inspection well with a drainage pipe according to claim 1, characterized in that: The outer walls of the connecting well piece and the gap-filling well piece are fitted to the contact parts of the inner walls of the upper and lower outer wells and sealed and connected by glue.

8. An assembly structure for connecting an inspection well with a drainage pipe, characterized in that: The inspection well is a circular well, and the drainage pipe is a circular pipe; The inspection well includes a lower outer well and an upper outer well distributed vertically at intervals, and a middle inner well connected to the upper and lower outer wells and connected to the drainage pipe. The diameter of the middle inner well is smaller than that of the upper and lower outer wells. The upper and lower outer wells are sealed and sleeved on the middle inner well. The inner well includes a connecting well plate provided on the drainage pipe and a gap filling well plate sealed and connected between adjacent connecting well plates; The drainage pipe includes two straight pipe sections distributed at arbitrary angles on the upper and lower outer wells, each straight pipe section is perpendicular to one end of the straight pipe section and is provided with an arc-shaped connecting well plate, the connecting well plates are linearly distributed on both sides of the straight pipe section, and the area of the connecting well plate is larger than the area formed by the circle of the diameter of the straight pipe section; The two straight pipe sections are respectively inserted into the supporting groove of the lower outer well through their respective connecting well plates. The two straight pipe sections can slide in the supporting groove of the lower outer well through their respective connecting well plates to adjust the angle between the two straight pipe sections so that the drainage pipes are sealed and connected at any angle and assembled on the upper and lower outer wells; The arc-shaped gap-filling well piece is spliced between adjacent connecting well pieces through a socket structure, and the gap-filling well piece extends and is inserted into the supporting groove connected to the lower outer well; the socket structure includes a socket, and the socket is provided on the end face of the connecting well piece or the gap-filling well piece in the width direction, and the connecting well piece and the gap-filling well piece are connected by interference fit between the side without the socket and the side with the socket; The connecting well plate and the gap-filling well plate are fixedly connected to the upper outer well by a snap-fit structure; the snap-fit structure includes a snap-fitting connecting strip and an annular groove, the snap-fitting strip being arranged on the connecting well plate and the gap-filling well plate or arranged in the well wall of the upper outer well, and the annular groove being arranged in the well wall of the upper outer well or arranged on the connecting well plate and the gap-filling well plate; A circular dripping platform is horizontally arranged inside the well wall of the upper outer well. The dripping platform is located above the socket structure and is against and sealed against the middle inner well.

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