Modularized spliced heat preservation type precast concrete component inspection well

The modular design of the manhole cover and manhole body components solves the problems of impurity deposition and easy leakage in traditional inspection wells, and achieves corrosion resistance of the handrail and high anti-settlement capability of the manhole body, ensuring worker safety and installation flexibility.

CN224106471UActive Publication Date: 2026-04-10JINHUA GREEN BUILDING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA GREEN BUILDING TECH CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

When it rains, impurities tend to accumulate on the handrails of existing concrete inspection wells, which accelerates corrosion, affects worker safety, and the traditional splicing method is prone to leakage and has insufficient resistance to settlement.

Method used

The modular splicing design includes a grid mesh and guide tube for filtering impurities in the manhole cover assembly, a grouting reinforcement structure in the base assembly, and a multi-directional locking structure in the manhole body assembly. The grid mesh filters large debris, the guide tube filters small impurities, the grouting pipe and ground spike rod in the base assembly form a composite reinforcement, and the positioning groove and positioning plate in the manhole body assembly form a multi-directional locking structure, enabling rapid installation and leak-proof performance.

Benefits of technology

It effectively prevents impurities from accumulating on the handrail, extends the handrail's lifespan, enhances its resistance to settlement and the well's sealing performance, ensures worker safety, and adapts to installation needs at different depths.

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Abstract

The utility model discloses a modularly spliced heat preservation type concrete prefabricated part inspection well which comprises a base assembly, three well body assemblies which are stacked together are connected to the top end of the base assembly in an inserted mode, a well lid assembly is connected to the top end of one well body assembly in a clamped mode, the well lid assembly comprises a lid body, and clamping blocks are integrally formed on the outer walls of the two sides of the bottom of the lid body. A mounting cover is clamped in the cover body, grooves are formed in the outer walls of the two sides of the top of the mounting cover, and a grating net opening piece is integrally formed in the center of the top of the mounting cover; in rainy days, rainwater can flow into the inspection well through the grating net opening piece, the rainwater can flow into the bottom of the inspection well along the guide net cylinder in the process, and due to the filtering effect of the guide net cylinder, impurities such as soil carried in the rainwater cannot fall on the handrail in a large amount, and impurity deposition on the handrail cannot be caused; the corrosion speed of the handrail is reduced, the service life of the handrail is prolonged, and a guarantee is provided for the safety of subsequent maintenance of workers.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermal insulation type concrete prefabricated inspection well, and specifically relates to a modularly spliced thermal insulation type concrete prefabricated component inspection well. BACKGROUND

[0002] The thermal insulation type concrete prefabricated inspection well is a modified product of a traditional concrete prefabricated inspection well with an added thermal insulation structure. The core structure is composed of a prefabricated concrete component and a thermal insulation material (such as polyurethane or extruded sheet), and the product is produced in a standardized manner in a factory to achieve rapid installation. The product solves the problem of pipeline operation and maintenance in extreme environments and expands the application range of prefabricated inspection wells.

[0003] For example, a kind of assembled prefabricated concrete inspection well with the application number CN202322071976.5 and the authorization announcement day of 20240220, installation frame is fixedly connected to the top of the inner chamber of prefabricated concrete inspection well body, rotating screw is rotatably connected to the middle part of installation frame, screw nut is threadedly connected to the surface of rotating screw, collecting plate is sleeved to the surface of screw nut, hexagonal block is fixedly connected to the top of rotating screw, connecting pipe is fixedly connected to the both sides of prefabricated concrete inspection well body, clamping groove is formed in the side of the end of connecting pipe away from prefabricated concrete inspection well body, the utility model discloses a kind of assembled prefabricated concrete inspection well, rotating hexagonal wrench drives the rotation of hexagonal block and rotating screw, the rotation of rotating screw drives the upward movement of screw nut and collecting plate, so as to vertically transport impurities to the top of the inner chamber of prefabricated concrete inspection well body, facilitate the cleaning of impurities, prevent impurities from blocking the inner chamber of prefabricated concrete inspection well body.

[0004] The inspection well is composed of a cover, a shaft and a base. In rainy days, rainwater from outside will flow into the inspection well through the cover, and some impurities such as soil will also be brought into the inspection well when the rainwater flows in. The impurities will be deposited on the handrails inside the shaft, and the corrosion on the surface of the handrails will accelerate due to the deposition of impurities, which will pose a threat to the safety of workers during subsequent maintenance. Therefore, there is an urgent need to design a modularly spliced thermal insulation type concrete prefabricated component inspection well to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a modularly spliced thermal insulation type concrete prefabricated component inspection well to solve the above problems in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a modular spliced heat preservation type concrete prefabricated component inspection well, including base assembly, the top of base assembly is inserted with three stacked well body assemblies, and the top of one well body assembly is clamped with well lid assembly, well lid assembly includes lid, the both sides outer wall of lid bottom is integrally formed with clamping block, the inside of lid is clamped with installation lid, and the both sides outer wall of installation lid top is provided with recess, the top center of installation lid is integrally formed with grating net mouth piece, the outside wall of installation lid one side is installed with guide net cylinder through bolt, and the one end of guide net cylinder is installed with counterweight through bolt.

[0008] Further, the base assembly includes a base, the base is integrally formed with a base plate at the bottom, and the both sides outer wall of the top of the base is provided with a clamping groove.

[0009] Further, the top of the base is provided with a second insertion groove on one side, and the both sides outer wall of the base is provided with a first insertion groove, and the first insertion groove and the second insertion groove are mutually penetrated.

[0010] Further, the base assembly further includes a connecting block, the connecting block is slidingly inserted into the inside of the base plate, the outside wall of one side of the connecting block is integrally formed with a bottom plate, and the outside wall of one side of the bottom plate is integrally formed with a plurality of ground spike rods.

[0011] Further, the inside wall of one side of the second insertion groove is inserted with a grouting pipe, and the one end of the grouting pipe extends into the inside of the base plate.

[0012] Further, the well body assembly includes a well body piece, the both sides inner wall of the well body piece is inserted with a handrail, the one end of the well body piece is integrally formed with two positioning plates, and the positioning plate of one of the well body pieces is clamped in the clamping groove.

[0013] Further, the top of the well body piece is provided with a positioning groove on the both sides outer wall, and the positioning plate in one of the two well body pieces above and below is clamped in the positioning groove on the top of the other well body piece.

[0014] In the above technical scheme, the utility model provides a modular spliced heat preservation type concrete prefabricated component inspection well, which has the following advantages:

[0015] (1) through the setting of well lid assembly, when it rains, rainwater will flow into the inside of the inspection well through the grating net mouth piece, and in the process, the rainwater will flow into the bottom of the inspection well along the guide net cylinder, and due to the filtering effect of the guide net cylinder, the soil and other impurities carried by the rainwater will not fall on the handrail in large quantities, so as to avoid the deposition of impurities on the handrail and reduce the corrosion speed of the handrail, thereby prolonging the service life of the handrail and providing protection for the safety of subsequent maintenance workers.

[0016] (2) By setting the grouting pipe, backing plate, connecting block, bottom plate and ground spike rod, when installing the inspection well, the grouting pipe can be used to inject slurry into the inside of the backing plate, and as the slurry is injected, the connecting plate will be subjected to a pushing force, and under the action of the pushing force, the bottom plate will tightly penetrate into the ground with the ground spike rod, forming a "mechanical anchoring + grouting reinforcement" double anti-pulling mechanism, which significantly enhances the settlement resistance of the inspection well foundation, especially suitable for soft soil environment, and the height of the base will rise after grouting, which can meet the installation requirements of inspection wells of different depths.

[0017] (3) By setting the clamping groove, positioning groove and positioning plate, the clamping groove in the base assembly is inserted and matched with the positioning plate of the well body assembly, and the positioning plate and the positioning groove are designed to be misaligned and clamped on the upper and lower layers of the adjacent well body parts, forming a multidirectional stress self-locking structure, which not only realizes modularized quick stacking and installation, but also improves the overall compressive strength and node sealing performance of the well body, avoiding the leakage problem of traditional well body splicing. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0019] Figure 1 The overall structure schematic diagram of the modularized spliced thermal insulation type concrete prefabricated component inspection well embodiment of the present application is provided.

[0020] Figure 2 The base assembly structure schematic diagram of the modularized spliced thermal insulation type concrete prefabricated component inspection well embodiment of the present application is provided.

[0021] Figure 3 The base assembly side view structure schematic diagram of the modularized spliced thermal insulation type concrete prefabricated component inspection well embodiment of the present application is provided.

[0022] Figure 4 The well body assembly structure schematic diagram of the modularized spliced thermal insulation type concrete prefabricated component inspection well embodiment of the present application is provided.

[0023] Figure 5 The well body assembly top view structure schematic diagram of the modularized spliced thermal insulation type concrete prefabricated component inspection well embodiment of the present application is provided.

[0024] Figure 6 The well cover assembly structure schematic diagram of the modularized spliced thermal insulation type concrete prefabricated component inspection well embodiment of the present application is provided.

[0025] Figure 7 The utility model provides a modularization spliced heat preservation type concrete prefabricated component inspection well top view structure schematic diagram of well lid subassembly provided in the embodiment.

[0026] Mark explanation:

[0027] 1, base subassembly, 2, well body subassembly, 3, well lid subassembly, 4, base, 5, backing plate, 6, insertion slot one, 7, insertion slot two, 8, clamping groove, 9, grouting pipe, 10, connecting block, 11, bottom plate, 12, ground thorn pole, 13, well body piece, 14, positioning groove, 15, handrail, 16, positioning plate, 17, cover, 18, clamping block, 19, mounting cover, 20, grating net mouth piece, 21, recess, 22, guide net cylinder, 23, counterweight. Specific implementation

[0028] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in detail below in conjunction with the drawings.

[0029] As Figures 1-7 The utility model embodiment provides a modularization spliced heat preservation type concrete prefabricated component inspection well, including base subassembly 1, the base subassembly 1 top end insertion has three well body subassembly 2 stacked together, and one of well body subassembly 2 top end clamping has well lid subassembly 3, well lid subassembly 3 includes cover 17, and the both sides outer wall of cover 17 bottom is integrally formed with clamping block 18, and the inside clamping of cover 17 has mounting cover 19, and the both sides outer wall of mounting cover 19 top is provided with recess 21, and the top center of mounting cover 19 is integrally formed with grating net mouth piece 20, and the outside wall of mounting cover 19 one side is installed with guide net cylinder 22 through bolt, and one end of guide net cylinder 22 is installed with counterweight 23 through bolt.

[0030] Specifically, in the embodiment, the base assembly 1 is provided with three stacked well body assemblies 2 at the top end, and the top end of one of the well body assemblies 2 is provided with the well cover assembly 3, the well cover assembly 3 comprises a cover body 17, the outer walls on both sides of the bottom of the cover body 17 are integrally formed with clamping blocks 18, the inside of the cover body 17 is provided with a mounting cover 19, recesses 21 are formed in the outer walls on both sides of the top of the mounting cover 19, the recesses 21 on the top of the mounting cover 19 guide rainwater, so that the accumulated water cannot seep into the connecting gap between the cover body 17 and the mounting cover 19, a grating mesh opening piece 20 is integrally formed at the center of the top of the mounting cover 19, the grating mesh opening piece 20 on the top of the mounting cover 19 intercepts large-volume sundries such as leaves and stones, a guide mesh cylinder 22 is provided on the outer wall of one side of the mounting cover 19 through bolts, fine silt carried by rainwater enters the guide mesh cylinder 22 which is installed in an inclined manner and is subjected to secondary filtration through the surface screen holes, and a counterweight 23 is provided at one end of the guide mesh cylinder 22 through bolts, the counterweight 23 makes the guide mesh cylinder 22 form a specific inclination angle, and when rainwater flows in, centrifugal vortex is generated due to gravity deflection, so that sundries are forced to be discharged along the inner wall of the mesh cylinder to the outside of the well.

[0031] The rainwater flows into the inside of the inspection well through the grating mesh opening piece 20, and the rainwater flows into the bottom of the inspection well along the guide mesh cylinder 22 in the process, and due to the filtering effect of the guide mesh cylinder 22, the sundries such as soil carried by the rainwater cannot fall on the handrails 15 in a large amount, so that the deposition of the sundries on the handrails 15 is avoided, the corrosion speed of the handrails 15 is reduced, the service life of the handrails 15 is prolonged, and the safety of subsequent worker maintenance is ensured.

[0032] In one embodiment of the utility model, as Figures 2-3As shown, the base assembly 1 comprises a base 4, the base 4 is integrally formed with a base plate 5 at the bottom, the outer wall of the top of the base 4 is provided with a clamping groove 8 on both sides, the outer wall of one side of the top of the base 4 is provided with a plug-in groove two 7, the outer wall of both sides of the base 4 is provided with a plug-in groove one 6, the plug-in groove one 6 provided on both sides of the base 4 and the plug-in groove two 7 on the top are mutually penetrated, supporting the municipal pipeline to access the inspection well from multiple directions, avoiding the layout restriction of the traditional one-way interface, and the plug-in groove one 6 and the plug-in groove two 7 are mutually penetrated, the base assembly 1 further comprises a connecting block 10, the connecting block 10 is slidingly inserted in the inside of the base plate 5, the outer wall of one side of the connecting block 10 is integrally formed with a bottom plate 11, and the outer wall of one side of the bottom plate 11 is integrally formed with a plurality of ground spike rods 12, during installation, after the base plate 5 contacts the foundation, the ground spike rods 12 are stabbed into the ground to form preliminary fixation under the action of gravity, a grouting pipe 9 is inserted in the inner wall of one side of the plug-in groove two 7, the grouting pipe 9 is inserted through the plug-in groove two 7, grout is injected into the inside of the base plate 5, the grout pressure drives the connecting block 10 to slide outward, driving the ground spike rods 12 to further penetrate, and after the grout solidifies, a composite reinforced layer is formed, and at the same time, the grouting amount is controlled to control the lifting height of the base plate 5, and different buried depth requirements are adapted, and one end of the grouting pipe 9 extends into the inside of the base plate 5.

[0033] In another embodiment of the utility model, as shown in the figure, Figures 4-5 As shown, the well body assembly 2 comprises a well body piece 13, the inner wall of both sides of the well body piece 13 is inserted with a handrail 15, the handrail 15 facilitates workers to climb the inspection well, the well body piece 13 is integrally formed with two positioning plates 16 at one end, the positioning plate 16 at the bottom end of the first well body piece 13 is inserted into the clamping groove 8 at the top of the base to complete the initial positioning, and the positioning plate 16 of one of the well body pieces 13 is clamped in the clamping groove 8, the outer wall of both sides of the top end of the well body piece 13 is provided with a positioning groove 14, the positioning plate 16 of the upper well body piece 13 is clamped in the lower positioning groove 14 in a staggered manner, forming a multi-directional locking structure similar to "mortise and tenon", the vertical load is uniformly transmitted through the contact surface of the positioning plate 16 and the positioning groove 14, the lateral pressure is dispersed by the staggered engagement nodes, the deformation resistance and sealing of the well body are improved, and the positioning plate 16 in one of the two well body pieces 13 adjacent to each other is clamped in the positioning groove 14 at the top of the other well body piece 13.

[0034] Embodiment 1

[0035] The modular spliced heat preservation type concrete prefabricated component inspection well comprises a base assembly 1, three stacked well body assemblies 2 are inserted at the top end of the base assembly 1, and the top end of one of the well body assemblies 2 is clamped with a well cover assembly 3, the well cover assembly 3 comprises a cover body 17, clamping blocks 18 are integrally formed on the outer walls of both sides of the bottom of the cover body 17, a mounting cover 19 is clamped in the cover body 17, recesses 21 are formed in the outer walls of both sides of the top of the mounting cover 19, the recesses 21 on the top of the mounting cover 19 guide rainwater, avoid the infiltration of accumulated water into the connecting gap between the cover body 17 and the mounting cover 19, a grating mesh opening piece 20 is integrally formed at the center of the top of the mounting cover 19, the grating mesh opening piece 20 on the top of the mounting cover 19 intercepts bulky impurities such as leaves and stones, a guide mesh cylinder 22 is bolted to the outer wall of one side of the mounting cover 19, fine silt carried by rainwater enters the guide mesh cylinder 22 which is installed in an inclined manner and is subjected to secondary filtration through the surface screen holes, a counterweight 23 is bolted to one end of the guide mesh cylinder 22, the counterweight 23 makes the guide mesh cylinder 22 form a specific inclination angle, and when rainwater flows in, centrifugal vortex is generated due to gravity deflection, so that impurities are forced to be directionally discharged to the outside of the well along the inner wall of the mesh cylinder.

[0036] Example 2

[0037] The embodiment is further limited on the basis of embodiment 1, wherein the base assembly 1 comprises a base 4, the bottom of which is integrally formed with a base plate 5, the top of which is provided with a clamping groove 8 on the outer wall of each side, the top of the base 4 is provided with a plug-in groove two 7 on the outer wall of one side, the base 4 is provided with a plug-in groove one 6 on the outer wall of each side, the plug-in groove one 6 on the two sides of the base 4 is penetrated with the plug-in groove two 7 on the top, supporting the municipal pipeline to access the inspection well from multiple directions, avoiding the layout limitation of the traditional one-way interface, and the plug-in groove one 6 and the plug-in groove two 7 are penetrated with each other, the base assembly 1 further comprises a connecting block 10, the connecting block 10 is slidingly inserted into the inside of the base plate 5, the connecting block 10 is integrally formed with a bottom plate 11 on the outer wall of one side, and the bottom plate 11 is integrally formed with a plurality of ground spike rods 12 on the outer wall of one side, during installation, after the base plate 5 contacts with the foundation, the ground spike rods 12 are stabbed into the ground to form preliminary fixation under the action of gravity, a grouting pipe 9 is inserted into the plug-in groove two 7, the grouting pipe 9 is inserted into the plug-in groove two 7, grout is injected into the inside of the base plate 5, the grout pressure drives the connecting block 10 to slide outward, driving the ground spike rods 12 to further penetrate, after the grout solidifies, a composite reinforced layer is formed, at the same time, the grouting amount is controlled to control the lifting height of the base plate 5, adapting to different burial depth requirements, and one end of the grouting pipe 9 extends into the inside of the base plate 5; the well body assembly 2 comprises a well body piece 13, handrails 15 are inserted into the inner wall of each side of the well body piece 13, the handrails 15 facilitate workers to climb the inspection well, the well body piece 13 is integrally formed with two positioning plates 16 on one end, the positioning plate 16 at the bottom end of the first well body piece 13 is inserted into the top clamping groove 8 of the base to complete the initial positioning, and the positioning plate 16 of one of the well body pieces 13 is clamped in the clamping groove 8, the top end of the well body piece 13 is provided with a positioning groove 14 on the outer wall of each side, the positioning plate 16 of the upper well body piece 13 is clamped in the lower positioning groove 14 in a staggered manner, forming a multi-directional locking structure similar to "mortise and tenon", the vertical load is uniformly transmitted through the contact surface of the positioning plate 16 and the positioning groove 14, the lateral pressure is dispersed by the staggered engagement nodes, the deformation resistance and sealing of the well body are improved, and the positioning plate 16 in one of the two well body pieces 13 above and below is clamped in the positioning groove 14 on the top of the other well body piece 13.

[0038] Working principle: when installing the inspection well, first, the structure composed of the bottom plate 11 and the connecting block 10 of the base assembly 1 is placed at the preset foundation position, and then the structure composed of the base 4 and the pad 5 is slidably inserted into the connecting block 10 in the pad 5, under the action of gravity, the plurality of ground spike rods 12 carried on the bottom plate 11 will be inserted into the ground to form a preliminary mechanical anchoring, then high-strength grout is injected into the pad 5 through the grouting pipe 9 inside the second insertion slot 7, as the grout pressure increases, the connecting block 10 is further stretched, driving the ground spike rod 12 to embed deeper into the foundation, and at the same time, the grout solidifies to form a composite reinforced layer, realizing the dual anti-pulling effect of "mechanical anchoring + grouting reinforcement", this process can also adjust the lifting height of the base 4 by adjusting the amount of grout injection to adapt to different burial depth requirements; after the installation of the base assembly 1 is completed, the positioning plate 16 at the bottom end of the first well body assembly 2 can be aligned and inserted into the clamping groove 8 at the top of the base 4 to complete the initial fixation, when the well body 13 is stacked in sequence, the positioning groove 14 at the top end of the lower well body assembly 13 is misaligned with the positioning plate 16 at the bottom end of the upper well body assembly 13, forming a multi-directional interlocking mortise and tenon structure, this design makes the vertical load evenly transmitted through the contact surface of the positioning plate 16 and the positioning groove 14, and the lateral pressure is dispersed by the staggered nodes, forming a self-locking anti-deformation mechanism, ensuring the overall sealing performance and anti-leakage ability of the well body; when the well cover assembly 3 is installed at the top end of the well body assembly 2, the clamping block 18 at the bottom of the cover body 17 is embedded into the reserved interface of the uppermost well body 13, realizing quick clamping and fixation, the grid mesh opening piece 20 at the top of the installed cover 19 serves as a primary filter layer to intercept large-volume impurities such as leaves and stones; fine silt carried by rainwater is deflected by the gravity of the counterweight block 23 when passing through the inclined guide mesh cylinder 22, forming a centrifugal vortex, forcing the impurities to be discharged outside the well along the inner wall of the guide mesh cylinder 22, the groove 21 is designed to guide rainwater to avoid seepage into the joint gap between the cover body 17 and the installed cover 19; during rainy days, rainwater flows into the guide mesh cylinder 22 after being preliminarily filtered by the grid mesh opening piece 20, and under the secondary screening effect of the inclination angle of the counterweight block 23 and the pore size of the mesh cylinder surface, impurities such as silt are separated and discharged outside the well along with the water flow, the purified rainwater falls along the inner wall of the well body assembly 2 to the bottom of the well, as the extension direction of the guide mesh cylinder 22 avoids the vertical projection area of the handrail 15 in the well body, the adhesion rate of impurities on the surface of the handrail 15 is significantly reduced, thereby delaying the corrosion process of the handrail 15 and ensuring the safety of maintenance personnel climbing.

[0039] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above figures and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A modular spliced thermal concrete precast component inspection well comprising a base assembly (1), characterized in that, The base assembly (1) is inserted with three stacked well body assemblies (2) at the top end, and one of the well body assemblies (2) is clamped with a well cover assembly (3) at the top end, the well cover assembly (3) comprises a cover body (17), the outer walls on both sides of the bottom of the cover body (17) are integrally formed with clamping blocks (18), the inside of the cover body (17) is clamped with a mounting cover (19), the outer walls on both sides of the top of the mounting cover (19) are provided with grooves (21), the top of the mounting cover (19) is integrally formed with a grid mesh opening piece (20), the outer wall on one side of the mounting cover (19) is provided with a guide mesh cylinder (22) through bolts, and one end of the guide mesh cylinder (22) is provided with a counterweight (23) through bolts.

2. The modular spliced insulation type precast concrete manhole according to claim 1, wherein, The base assembly (1) comprises a base (4), the bottom of the base (4) is integrally formed with a base plate (5), the outer walls on both sides of the top of the base (4) are provided with clamping grooves (8).

3. The modular spliced insulation type precast concrete manhole according to claim 2, wherein, The outer wall on one side of the top of the base (4) is provided with a second insertion groove (7), the outer walls on both sides of the base (4) are provided with first insertion grooves (6), and the first insertion grooves (6) and the second insertion grooves (7) are mutually penetrated.

4. The modular spliced insulation type precast concrete manhole according to claim 3, wherein, The base assembly (1) further comprises a connecting block (10), the connecting block (10) is slidingly inserted into the inside of the base plate (5), the outer wall on one side of the connecting block (10) is integrally formed with a bottom plate (11), and the outer wall on one side of the bottom plate (11) is integrally formed with a plurality of ground thorn rods (12).

5. The modular spliced insulation type precast concrete manhole according to claim 4, wherein, The inner wall of the second insertion groove (7) is inserted with a grouting pipe (9), and one end of the grouting pipe (9) extends into the inside of the base plate (5).

6. The modular spliced insulation type precast concrete manhole according to claim 2, wherein, The well body assembly (2) comprises a well body (13), the inner walls on both sides of the well body (13) are inserted with handrails (15), one end of the well body (13) is integrally formed with two positioning plates (16), and the positioning plate (16) of one of the well body (13) is clamped in the clamping groove (8).

7. The modular spliced insulation type precast concrete manhole according to claim 6, wherein, The outer walls on both sides of the top end of the well body (13) are provided with positioning grooves (14), the positioning plate (16) in one of the well body (13) is clamped in the positioning groove (14) at the top end of the other well body (13).

Citation Information

Patent Citations

  • Fabricated precast concrete inspection well

    CN220504106U