CN111764435A - A concrete prefabricated grouting sealed assembly inspection well - Google Patents

Abstract

One or more embodiments of the present specification provide a concrete prefabricated grouting sealed and assembled inspection well, a bottom plate, a side vertical plate and a cover plate, characterized in that a bottom flange is provided around the top of the bottom plate, and the bottom flange is The inner side of the side vertical plate is provided with a bottom inner chamfer; the side vertical plate is located above the bottom plate, the lower end of the side vertical plate is provided with a bottom groove, and the lower side corner of the side vertical plate is provided with a grouting channel hole; the cover plate is located above the side vertical plate. According to the present invention, the inspection well is divided into a plurality of independent concrete prefabricated parts such as the bottom plate, the side vertical plate and the cover plate as a whole, and each part of the inspection well can be assembled and connected through the provided interlocking grooves and connecting structures. At the same time, a gap is reserved in the middle of the concave-convex groove structure to form a grouting channel, so that the parts can be grouted through the grouting channel to form a network connection structure to be connected as a whole, so as to ensure the stability and sealing of the overall structure of the inspection well.

Description

A concrete prefabricated grouting sealed assembly inspection well

technical field

One or more embodiments of the present specification relate to the technical field of concrete inspection wells, and in particular, to a concrete prefabricated grouting sealed and assembled inspection well.

Background technique

Inspection wells are installed for the maintenance of power supply, water supply, drainage, sewage, communication, cable television, gas pipes, street light lines, etc. of urban underground infrastructure. Changes, as well as at certain distances on the straight pipe section, are convenient for regular inspection of auxiliary structures, and large-sized inspection wells are generally made of concrete in order to maintain a stable structure, and corresponding formwork needs to be used during production. The volume and weight are large.

The applicant found that the size of the existing large-scale inspection wells is generally more than 2.5 meters. Due to the limited size and own weight, it is difficult to transport as a whole, and the weight of an inspection well with an overall structure is also very large. Lifting equipment is difficult to carry out construction in places where site equipment is limited, and the flexibility of use and installation is low, so large-scale inspection wells are generally split-assembled structures, but the existing concrete inspection wells of assembled structures are often only a few The simple splicing of concrete slabs, the stability of the connection between them is low, and it is easy to be squeezed, deformed and displaced after being buried outside, and it is difficult to maintain sealing, and the joints are generally sealed with a sealing ring structure, which is easy to be corroded and damaged. Lifespan is lower.

SUMMARY OF THE INVENTION

In view of this, the purpose of one or more embodiments of the present specification is to propose a prefabricated concrete precast grouting sealed and assembled inspection well to solve the problem.

Based on the above purpose, one or more embodiments of the present specification provide a concrete prefabricated grouting sealed and assembled inspection well, including a bottom plate, a side vertical plate and a cover plate, and is characterized in that:

The top of the bottom plate is provided with a bottom flange, the inner side of the bottom flange is provided with a bottom inner chamfer, a pre-embedded nut is arranged in the middle of the bottom inner chamfer, and a pre-embedded nut is arranged in the middle of the bottom flange. Retain steel;

The side vertical plate is located above the bottom plate, the lower end of the side vertical plate is provided with a bottom groove, the left and right sides of the side vertical plate are symmetrically provided with the inner chamfer of the vertical plate, and the left and right sides of the side vertical plate are provided with inner chamfers. Both ends are provided with interface concave-convex grooves, the top end faces of the side uprights are provided with top grooves, and the lower side corners of the side uprights are provided with grouting through holes;

The cover plate is located above the side vertical plate, the bottom surface of the cover plate is provided with a top flange, the inner side of the cover plate is provided with a reserved hole for the cover plate, and the top surface of the cover plate is provided with a top screw holes, and pulp outlet holes are arranged at the corners of the top surface of the cover plate.

In some optional embodiments, the bottom plate and the cover plate are rectangular, pentagonal or other polygonal structures with the same size.

In some optional embodiments, the vertical sides of the bottom inner chamfer and the top surface of the bottom plate are perpendicular to each other, and the vertical sides of the bottom inner chamfer and the inner side of the side upright are mutually perpendicular to each other. The inner surface of the side vertical plate and the bottom surface of the cover plate are perpendicular to each other.

In some optional embodiments, the dimensions of the interface concave-convex grooves are matched with each other, the side uprights can be joined together by the interface concave-convex grooves, and the reserved space between the interface concave-convex grooves can constitute grouting The side vertical plates can be connected by grouting to form a whole through the grouting channel, and the vertical sides of the inner chamfers of the vertical plates and the inner side of the bottom plate are mutually abutted.

In some optional embodiments, the tops of the reserved steel bars are connected by annular structural steel bars, and the sizes of the reserved steel bars and the bottom grooves match each other.

In some optional embodiments, the size of the bottom groove and the bottom flange are matched with each other, and the side upright plate can be assembled with the bottom plate through the bottom flange and the bottom groove. connection, the reserved space between the bottom groove and the bottom flange constitutes a grouting channel, and the side vertical plate and the bottom plate can be grouted to form a whole through the grouting channel.

In some optional embodiments, the dimensions of the top groove and the top flange are matched with each other, and the cover plate can pass between the top flange and the top groove and the side upright plate In the spliced connection, the reserved space between the top groove and the top flange constitutes a grouting channel, and the side vertical plate and the cover plate can be grouted and connected as a whole through the grouting channel.

In some optional embodiments, the outer and lower sides of both ends of the side upright plate are provided with reserved screw holes, and the horizontal centerline of the reserved screw holes and the horizontal centerline of the embedded nut are located at the same in a straight line.

In some optional embodiments, a pipeline reserved hole is provided in the middle of the side vertical plate, and the pipeline reserved hole is circular, square, upper arch or irregular shape, and the upper end of the side vertical plate is provided with There are hoisting connection screw holes corresponding to the top screw holes one-to-one, and one of the side vertical plates is provided with a reserved ladder mounting hole, and the reserved ladder mounting hole is aligned with the reserved hole in the cover plate.

In some optional embodiments, the grouting through hole is communicated with the grouting hole through the grouting channel, and the joints of the bottom plate, the side vertical plate and the cover plate are all provided with glued seams.

It can be seen from the above that one or more embodiments of the present specification provide a concrete prefabricated grouting sealed prefabricated inspection well. In order to reduce the overall transportation volume and weight of the inspection well, the independent prefabricated parts are also convenient for manufacture, transportation and hoisting. The combined groove and connection structure are convenient for the bottom plate, side vertical plate and cover plate to be spliced and connected to each other. At the same time, a gap is reserved in the middle of the concave-convex groove structure to form a grouting channel, so that the bottom plate, side vertical plate and cover plate can pass through. The grouting channel grouting forms a mesh connection structure to be connected as a whole, so as to ensure the stability and tightness of the structure when the inspection well is assembled, and the bottom plate, side vertical plate and cover plate are respectively provided with reserved steel bars and screw holes connection structure. During the splicing work, the bottom plate, side vertical plate and cover plate can be fixed by penetrating the bolt to improve the stability of the splicing. At the same time, when the independent prefabricated parts are manufactured, they are prefabricated on the fixed mold table through the assembly process, and the inspection well When the overall required size changes, it is only necessary to adjust the side mold of the prefabricated board, and it is safer to produce without height restrictions.

Description of drawings

In order to more clearly illustrate one or more embodiments of the present specification or the technical solutions in the prior art, the following briefly introduces the accompanying drawings used in the description of the embodiments or the prior art. Obviously, in the following description The accompanying drawings are only one or more embodiments of the present specification, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of an exploded structure of one or more embodiments of this specification;

2 is a schematic front view of the structure of one or more embodiments of this specification;

3 is a schematic diagram of the internal structure of one or more embodiments of this specification;

FIG. 4 is a schematic top-view structure diagram of one or more embodiments of the present specification without a cover plate;

FIG. 5 is a schematic top-view structure diagram of one or more embodiments of the specification;

6 is a schematic cross-sectional structure diagram at A-A in FIG. 5 of one or more embodiments of this specification;

7 is a schematic structural diagram of a bottom plate according to one or more embodiments of the present specification;

8 is a schematic structural diagram of a side riser according to one or more embodiments of the present specification;

FIG. 9 is a schematic diagram of the bottom surface structure of a side vertical plate according to one or more embodiments of the present specification;

10 is a schematic structural diagram of a cover plate according to one or more embodiments of the specification;

11 is a schematic structural diagram of the interior after grouting according to one or more embodiments of the specification;

FIG. 12 is a schematic diagram of the overall structure of a grouting channel according to one or more embodiments of the description.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to specific embodiments.

It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of the present specification shall have the usual meanings understood by those with ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and similar terms used in one or more embodiments of this specification do not denote any order, quantity, or importance, but are merely used to distinguish the various components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In one or more embodiments of this specification, a concrete prefabricated grouting sealed and assembled inspection well, comprising a bottom plate 1, a side vertical plate 2 and a cover plate 3, is characterized in that:

A bottom flange 11 is arranged around the top of the bottom plate 1, an inner bottom chamfer 12 is arranged on the inner side of the bottom flange 11, a pre-embedded nut 13 is arranged in the middle of the bottom inner chamfer 12, and a reserved nut 13 is arranged in the middle of the bottom flange 11. steel bar 14;

The side vertical plate 2 is located above the bottom plate 1, the lower end of the side vertical plate 2 is provided with a bottom groove 21, the left and right sides of the side vertical plate 2 are symmetrically provided with vertical plate inner chamfers 23, and the left and right ends of the side vertical plate 2 are The interface concave-convex groove 24 is provided, the top end face of the side vertical plate 2 is provided with a top groove 22, and the lower side corner of the side vertical plate 2 is provided with a grouting through hole 25;

The cover plate 3 is located above the side vertical plate 2, the bottom surface of the cover plate 3 is provided with a top flange 31, the inner side of the cover plate 3 is provided with a cover plate reserved hole 32, and the top surface of the cover plate 3 is provided with a top screw hole 33 , the top surface corners of the cover plate 3 are provided with pulp holes 34 .

Please refer to FIG. 1 to FIG. 10 , as an embodiment of the present invention, a concrete prefabricated grouting sealed and assembled inspection well, the present invention provides a concrete prefabricated grouted sealed assembled inspection well, comprising a bottom plate 1 and a side vertical plate 2 And the cover plate 3, which is characterized in that: the top of the bottom plate 1 is provided with a bottom flange 11, the inner side of the bottom flange 11 is provided with a bottom inner chamfer 12, and the middle of the bottom inner chamfer 12 is provided with a pre-embedded nut 13. A reserved steel bar 14 is arranged in the middle of the flange 11; the side vertical plate 2 is located above the bottom plate 1, the lower end of the side vertical plate 2 is provided with a bottom groove 21, and the left and right sides of the side vertical plate 2 are symmetrically provided with vertical plate inverted Corner 23, the left and right ends of the side vertical plate 2 are provided with interface concave-convex grooves 24, the top end face of the side vertical plate 2 is provided with a top groove 22, and the lower side corners of the side vertical plate 2 are provided with grouting through holes 25; the cover plate 3 is located above the side vertical plate 2, the bottom surface of the cover plate 3 is provided with a top flange 31, the inner side of the cover plate 3 is provided with a cover plate reserved hole 32, and the top surface of the cover plate 3 is provided with a top screw. Hole 33, a slurry outlet hole 34 is provided at the top corner of the cover plate 3, the inspection well is divided into several independent structures of the bottom plate 1, the side vertical plate 2 and the cover plate 3, and each independent structure can be independently poured The production and transportation greatly reduce the transportation volume and transportation weight, and each independent structure is provided with a corresponding fitting connection and sealing structure, which is convenient for combined assembly and use. The weight is also smaller, no large lifting equipment is required, and the site is more flexible.

Please refer to Fig. 1 to Fig. 10. Optionally, the inspection well is based on the base plate 1, then a side vertical plate 2 is erected above it, and finally a cover plate 3 is placed on the side vertical plate 2 to form an inspection well, and the bottom plate 1 and the cover plate 3 are rectangular, pentagonal or other polygonal structures with the same size, and each side of the bottom plate 1 is provided with a side upright plate 2, so as to form a barrel-shaped structure, and each side upright plate 2 can face the surface. Connecting pipes or installing ladders, the use is more flexible, the vertical side of the bottom inner chamfer 12 and the top surface of the bottom plate 1 are perpendicular to each other, and the vertical side of the bottom inner chamfer 12 and the inner side of the side vertical plate 2 are attached to each other The inner side of the side vertical plate 2 and the bottom surface of the cover plate 3 are perpendicular to each other to maintain the stability of the structure, and the inner chamfer 12 of the bottom can withstand the bottom of the side vertical plate 2 to prevent the opposite side after the outside is filled with soil. The pressure applied by the vertical plate 2 causes the side vertical plate 2 to move inward, deform and displace, which can ensure that the greater the external pressure, the more stable and tighter the connection between the bottom plate 1 and the side vertical plate 2, and the better the sealing performance, which is conducive to improving the Check the structural stability of the well as a whole.

Please refer to Fig. 1 to Fig. 12. Optionally, the inspection well is composed of a bottom plate 1, a side vertical plate 2 and a cover plate 3, and the bottom plate 1, the side vertical plate 2 and the cover plate 3 are all connected with concave-convex grooves. At the same time, the inner side of the side vertical plate 2 is correspondingly provided with a vertical plate inner chamfer 23, and the vertical side surface of the vertical plate inner chamfer 23 can fit with the inner side of the bottom plate 1 for setting the vertical plate inner chamfer 23. Therefore, the vertical plates are mutually supported by the inner chamfers 23 of the vertical plates, so as to maintain the stability of the structure and prevent the side vertical plates 2 from being moved inward, deformed and displaced due to the pressure applied to the side vertical plates 2 after the outside is filled with soil, which can ensure the external pressure. The larger the size is, the more stable and tighter the connection between the side vertical plates 2 is, and the better the sealing performance is, which is beneficial to improve the overall structural stability of the inspection well. They can be spliced and connected by the interface concave-convex groove 24, the reserved space between the interface concave-convex groove 24 can form a grouting channel 4, and the side vertical plates 2 can be connected by grouting through the grouting channel 4 to form a whole, and the bottom groove 21 and the bottom convex The dimensions of the edges 11 are matched with each other, and the side vertical plates 2 can be spliced and connected to the bottom plate 1 through the bottom groove 21 and the bottom flange 11. The reserved space between the bottom groove 21 and the bottom flange 11 constitutes the grouting channel 4 , the side vertical plate 2 and the bottom plate 1 can be connected by grouting through the grouting channel 4 as a whole, the size of the top groove 22 and the top flange 31 are matched with each other, and the cover plate 3 can be connected with the top flange 31 and the top groove 22 through the top flange 31 and the top groove 22. The side vertical plates 2 are spliced and connected, and the reserved space between the top groove 22 and the top flange 31 constitutes a grouting channel 4, and the side vertical plate 2 and the cover plate 3 can be connected by grouting through the grouting channel 4 to form a whole. 1. The grouting channel 4 set between the side vertical plate 2 and the cover plate 3 can form a complete and connected network structure after grouting, and completely fill the reserved space between the bottom plate 1, the side vertical plate 2 and the cover plate 3 to prevent the occurrence of The connection gap leads to water seepage, and the grouting material is not easily corroded and damaged after solidification, and has a longer service life, thereby improving the stability and sealing of the connection between the side vertical plate 2 and the bottom plate 1 .

Please refer to FIGS. 1 to 12. Optionally, various connection and fixing structures are provided between the bottom plate 1 and the side vertical plate 2 of the inspection well, and the top of the reserved steel bars 14 set on the bottom plate 1 are connected by annular structural steel bars. In order to form a steel mesh structure, the size of the reserved steel bar 14 and the bottom groove 21 are matched with each other. When installing the side vertical plate 2, the reserved steel bar 14 can be inserted into the bottom groove 21 to avoid The vertical plate 2 is positioned and fixed, and the reserved screw holes 26 on the bottom side of the side vertical plate 2 can be connected with the embedded nut 13 through the steel mesh structure formed by the reserved steel bars 14 to connect the steel skeleton structure as a whole. , so as to connect the reinforced skeleton of the bottom plate 1 and the reinforced skeleton of the side vertical plate 2 into a whole by bolts, which is convenient for fixing the side vertical plate 2 and the bottom plate 1 when installing and splicing the inspection well, and prevents the side vertical plate 2 from moving to the side when the outside is not buried. The outer side is tilted, the installation is more accurate and convenient, and the structure is more stable. At the same time, the outer and lower sides of both ends of the side vertical plate 2 are provided with reserved screw holes 26, and the horizontal center line of the reserved screw holes 26 and the embedded nuts 13. The horizontal center lines are located on the same straight line. When installing the combined inspection well, the bolts can be inserted into the reserved screw holes 26 provided on the outer sides of the two ends of the side vertical plates 2 to connect and fix the opposite side vertical plates 2, which is beneficial to Improve the stability and safety of inspection well installation and assembly.

Please refer to Fig. 1 to Fig. 12. Optionally, a pipeline reserved hole 29 can be arranged in the middle of the side vertical plate 2 of the inspection well. The pipeline reserved hole 29 is round, square, upper arch or irregular shape. The hole 29 is left to penetrate or connect to the pipeline of the corresponding size and shape, and the upper end of the side vertical plate 2 is provided with the hoisting connecting screw holes 28 corresponding to the top screw holes 33 one-to-one, so as to facilitate the hoisting connecting screw holes 28 when the inspection well is assembled and installed. Install the hoisting ring to hoist the side vertical plate 2, which is more convenient to install and use, and after the side vertical plate 2 is hoisted and assembled, the hoisting ring can be removed, and then the cover plate 3 can be installed through the top screw hole 33. In the connecting screw holes 28, the cover plate 3 and the side vertical plate 2 are connected to prevent the seal from being squeezed by the gravity of the construction machinery and the seal is affected by the dislocation. , The reserved climbing ladder installation hole 27 is aligned with the reserved hole of the cover plate 3. After the inspection well is installed, the reserved climbing ladder can be installed through the reserved climbing ladder installation hole 27, which is convenient for personnel to enter and exit the inspection through the reserved climbing ladder when installing and maintaining the inspection well. well.

Please refer to Figures 1 to 12. Optionally, after the inspection well is assembled and installed, waterproof grout can be injected into the grouting channel 4 at the connection between the bottom plate 1, the side vertical plate 2 and the cover plate 3 through the grouting through hole 25. Since the grouting through hole 25 is communicated with the grouting hole 34 through the grouting channel 4, and the grouting through hole 25 is located at the bottom of the inspection well, and the grouting hole 34 is located at the top, the waterproof slurry is pushed during grouting. Gradually fill all the grouting channels 4 from bottom to top, and discharge the air from the slurry outlet hole 34 until the slurry emerges from the slurry outlet hole 34, so as to ensure that the grouting channel 4 is completely filled with waterproof slurry and avoid the generation of cavitation. The structure is more stable, and the sealing and waterproof performance are better. At the same time, the upper surface edge of the bottom plate 1 of the inspection well, the upper edge of the inner chamfer 12 of the bottom, the surrounding edge of the side vertical plate 2, the inner edge of the inner chamfer 23 of the vertical plate and the cover plate 3 The edges of the lower surface of the bottom surface are chamfered, so after the bottom plate 1, the side vertical plate 2 and the cover plate 3 are assembled and combined, a glued seam 5 can be formed between each edge chamfer, so that the bottom plate 1, the side vertical plate 2 and the joints of the cover plate 3 are provided with glue joints 5, which can be filled with waterproof glue through the glue joints 5 to prevent water vapor from penetrating into the inspection well from the joints of the bottom plate 1, side vertical plates 2 and cover plate 3. , in order to further improve the stability and waterproofness of the joint installation of inspection wells.

Workflow: When using, first need to combine and connect each bottom plate 1, side vertical plate 2 and cover plate 3 of the inspection well. When installing and assembling the inspection well, first place the bottom plate 1 in a predetermined position, and then pass the side vertical plate 2. The hoisting ring installed on the hoisting connecting screw hole 28 set on the top hoistes the side vertical plate 2 above the bottom plate 1, and splices the two, so that the bottom groove 21 at the bottom of the side vertical plate 2 is embedded in the bottom convex set on the bottom plate 1. In the edge 11, at the same time, the reserved steel bar 14 is also inserted into the bottom groove 21 to position and fix the side vertical plate 2, and keep the vertical side of the bottom inner chamfer 12 and the inner side of the side vertical plate 2 sticking to each other. Then, the bolts are inserted through the reserved screw holes 26 provided on the lower side into the reinforced mesh structure formed by the reserved steel bars 14 and are connected with the embedded nuts 13, so as to connect the steel skeleton structure as a whole, so as to connect the steel bars of the bottom plate 1. The skeleton and the reinforced skeleton of the side vertical plate 2 are connected into a whole by bolts, and then the remaining side vertical plates 2 are installed on the base plate 1 according to the same steps. The screw holes 26 are reserved to connect the side vertical plates 2, and it is necessary to keep the interface concave-convex grooves 24 between the side vertical plates 2 to fit each other, and at the same time, the vertical sides of the inner chamfers 23 of the vertical plates are connected to the inner surface of the bottom plate 1. The sides are also kept in contact with each other, then remove the lifting ring installed in the hoisting connecting screw hole 28 on the top of the side vertical plate 2, and hoist and install the cover plate 3 on the side vertical plate 2, keeping the bottom surface of the cover plate 3. The top flange 31 and the top groove 22 at the top of the side vertical plate 2 are fitted with each other, and the direction of the reserved hole 32 of the cover plate is kept on the side of the side vertical plate 2 provided with the reserved climbing ladder mounting hole 27, and then the ladder is installed. Directly insert and install it on the side vertical plate 2 through the reserved ladder mounting holes 27, and at the same time connect the cover plate 3 and the side vertical plate 2 through the bolts through the hoisting connecting screw holes 28 and the top screw holes 33, so as to complete the pre-installation and combination work. , and then use grouting equipment to inject waterproof slurry into the grouting channel 4 at the connection between the bottom plate 1, the side vertical plate 2 and the cover plate 3 through the grouting through hole 25. The grouting through hole 25 is located at the bottom of the inspection well, and the The grout hole 34 is located at the top, so the waterproof grout will gradually fill all the grouting channels 4 from bottom to top when grouting is pushed, and the air will be discharged from the grout hole 34 until the grout stops when the grout emerges from the grout hole 34. , to ensure that the grouting channel 4 is completely filled with waterproof slurry and avoid the generation of cavities. After the waterproof slurry is completely solidified, the grouting channel 4 set between the bottom plate 1, the side vertical plate 2 and the cover plate 3 passes through the solidified waterproof slurry. The material forms a complete and connected network structure, which completely fills the reserved space between the bottom plate 1, the side vertical plate 2 and the cover plate 3 to prevent water seepage caused by connection gaps. 3. Each glued joint 5 is glued to improve the overall sealing of the inspection well. When the sealant is solidified, the overall combined installation of the inspection well is completed, and subsequent pipeline connections and landfills can be performed.

It should be understood by those of ordinary skill in the art that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the spirit of the present disclosure, the above embodiments or Technical features in different embodiments may also be combined, steps may be carried out in any order, and there are many other variations of the different aspects of one or more embodiments of this specification as described above, which are not in detail for the sake of brevity supply.

The embodiment or embodiments of this specification are intended to cover all such alternatives, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of the present specification should be included within the protection scope of the present disclosure.

Claims (10)

1. a concrete prefabricated grouting sealed assembled inspection well, comprising a base plate, a side vertical plate and a cover plate, it is characterized in that: The top of the bottom plate is provided with a bottom flange, the inner side of the bottom flange is provided with a bottom inner chamfer, a pre-embedded nut is arranged in the middle of the bottom inner chamfer, and a pre-embedded nut is arranged in the middle of the bottom flange. Retain steel; The side vertical plate is located above the bottom plate, the lower end of the side vertical plate is provided with a bottom groove, the left and right sides of the side vertical plate are symmetrically provided with the inner chamfer of the vertical plate, and the left and right sides of the side vertical plate are provided with inner chamfers. Both ends are provided with interface concave-convex grooves, the top end faces of the side uprights are provided with top grooves, and the lower side corners of the side uprights are provided with grouting through holes; The cover plate is located above the side vertical plate, the bottom surface of the cover plate is provided with a top flange, the inner side of the cover plate is provided with a reserved hole for the cover plate, and the top surface of the cover plate is provided with a top screw holes, and pulp outlet holes are arranged at the corners of the top surface of the cover plate. 2 . The concrete prefabricated grouting sealed and assembled inspection well according to claim 1 , wherein the bottom plate and the cover plate are rectangular, pentagonal or other polygonal structures with the same size. 3 . 3 . The prefabricated concrete prefabricated grouting sealed and assembled inspection well according to claim 1 , wherein the vertical side surface of the inner chamfer of the bottom and the top surface of the bottom plate are perpendicular to each other, and the bottom is inverted inward. 4 . The vertical sides of the corners and the inner sides of the side uprights are mutually attached, and the inner sides of the side uprights and the bottom surface of the cover are perpendicular to each other. 4 . The prefabricated concrete grouting sealed and assembled inspection well according to claim 1 , wherein the dimensions of the concave-convex grooves of the interface are matched with each other, and the side vertical plates can be assembled through the concave-convex grooves of the interface. 5 . connection, the reserved space between the concave-convex grooves of the interface can form a grouting channel, the side vertical plates can be connected into a whole through the grouting channel grouting, the vertical side of the inner chamfer of the vertical plate and the bottom plate the inner sides of each other fit each other. 5. The concrete prefabricated grouting sealed and assembled inspection well according to claim 1, wherein the top of the reserved steel bar is connected by an annular structural steel bar, and the space between the reserved steel bar and the bottom groove is connected. The dimensions match each other. 6 . The prefabricated concrete grouting sealed and assembled inspection well according to claim 1 , wherein the size of the bottom groove and the bottom flange are matched with each other, and the side vertical plate can pass through the The bottom flange, the bottom groove and the bottom plate are spliced and connected, the reserved space between the bottom groove and the bottom flange constitutes a grouting channel, and the side vertical plate and the bottom plate can pass through The grouting channels are connected by grouting to form a whole. 7 . The prefabricated concrete grouting sealed and assembled inspection well according to claim 1 , wherein the size of the top groove and the top flange are matched with each other, and the cover plate can pass through the top. 8 . The flange, the top groove and the side vertical plate are spliced and connected, the reserved space between the top groove and the top flange constitutes a grouting channel, and the space between the side vertical plate and the cover plate is It can be connected by grouting through the grouting channel to form a whole. 8 . The concrete prefabricated grouting sealed assembled inspection well according to claim 1 , wherein the outer and lower sides of both ends of the side vertical plate are provided with reserved screw holes, and the reserved screw holes are provided with the reserved screw holes. The horizontal centerline of the embedded nut is on the same line as the horizontal centerline of the embedded nut. 9 . The prefabricated concrete grouting sealed and assembled inspection well according to claim 1 , wherein a reserved hole for pipes is arranged in the middle of the side vertical plate, and the reserved holes for the pipes are circular, square, The upper arch or irregular shape, the upper end of the side vertical plate is provided with a hoisting connection screw hole corresponding to the top screw hole one-to-one, and one of the side vertical plates is provided with a reserved climbing ladder installation hole. The reserved ladder mounting holes are aligned with the reserved holes of the cover plate. 10 . The prefabricated concrete grouting sealed and assembled inspection well according to claim 1 , wherein the grouting through hole is communicated with the grouting hole through the grouting channel, and the bottom plate, the side stand The joints of the plate and the cover plate are provided with glued seams.

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