Plastic inspection well

Abstract

The utility model discloses a plastic inspection well. Comprising a well base, the well base is one of one-way, two-way or three-way, the side wall of the bottom of the well base extends to form a cylinder wall, a positioning column is arranged in the center of the bottom of the well base, and the positioning column is flush with the edge of the cylinder wall; the shaft is detachably arranged on the well base, the middle upper portion of the shaft is provided with a closing-up structure, and the shaft plays a role in prolonging the well depth and effectively resisting lateral pressure; the well lid is detachably arranged at the opening of the shaft, and a pressure bearing ring is arranged on the outer side of the upper portion of the shaft. The utility model has the advantages of high strength, capability of effectively bearing various pressures of an external structure, long service life, firmness in fixation, capability of preventing easy inclination and looseness during fixed-point installation, capability of effectively filtering out large-particle impurities above, capability of being produced in a customized manner according to field requirements, field installation, low construction difficulty and small influence on the surrounding environment; the shaft and the well base of the inspection well are good in anti-leakage performance, and sewage leakage can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection wells, in particular to a plastic inspection well. Background Art

[0002] Inspection wells are set up for the maintenance and installation of urban underground infrastructure such as power supply, water supply, drainage, sewage, communication, cable TV, gas pipes, street light lines, etc. They are generally set up at the intersection of pipelines, bends, places where pipe diameters or slopes change, and at regular intervals on straight pipe sections. At present, plastic inspection wells made of resin and other composite materials are gradually replacing the old concrete inspection wells, so the requirements for the strength, sealing and practicality of inspection wells are getting higher and higher. Utility Model Content

[0003] The utility model provides a plastic inspection well, which meets the requirements of the background technology by improving the existing plastic inspection well.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a plastic inspection well, comprising:

[0005] A well base, wherein the well base is one of a single-way, two-way or three-way base, the side wall of the bottom of the well base extends to form a cylinder wall, a positioning column is arranged at the center of the bottom, and the positioning column is flush with the edge of the cylinder wall;

[0006] A wellbore, wherein the wellbore is detachably arranged on a well base, and the middle and upper part of the wellbore has a closing structure, and the wellbore serves to extend the well depth and effectively resist lateral pressure;

[0007] A manhole cover is detachably arranged at the opening of the wellbore, and a pressure-bearing ring is arranged on the outer side of the upper part of the wellbore.

[0008] Preferably, the inspection well further comprises a wellbore connecting seat, wherein the wellbore connecting seat is arranged between the well base and the wellbore, a reserved hole is arranged on the wellbore connecting seat, and a detachable connecting structure is arranged at the reserved hole for connecting the outlet pipe.

[0009] Preferably, crisscross reinforcing ribs are provided on the outer wall of the well base and the wellbore connecting seat.

[0010] Preferably, longitudinal reinforcing ribs are provided on the outer wall of the closing structure.

[0011] Preferably, the detachable connection structure is a threaded cover body, and a positioning groove is arranged in the center of the cover body. The size of the positioning groove matches the diameter of the outlet pipe. When installing the outlet pipe, a through hole is cut along the positioning groove, and then the outlet pipe is put on the cover body and finally fixed at the reserved hole.

[0012] Preferably, a sealing ring is provided on the inner wall of the reserved hole for sealing the outlet pipe after installation.

[0013] Preferably, the positioning column is provided with an internal thread, which cooperates with the positioning structure on the cushion layer at the placement location to position and fix the inspection well.

[0014] Preferably, the pressure-bearing ring is made of concrete, and a cover seat is arranged between the pressure-bearing ring and the wellbore wall. The wellbore cover is closed at the wellbore opening and cooperates with the cover seat to form a sealing structure.

[0015] Preferably, a filter is provided at the opening of the wellbore, which may be integrally formed with the wellbore or detachably provided.

[0016] Beneficial effects:

[0017] The utility model adopts the plastic inspection well designed by the above technical scheme, has high strength, can effectively withstand various pressures of external structures, has a long service life, is firmly fixed, and can prevent tilting and loosening during fixed-point installation. It can also effectively filter out large particles of debris above, can be customized and produced according to on-site needs, and can be installed on-site, with low construction difficulty and little impact on the surrounding environment. The inspection well shaft and well seat have good anti-leakage properties, which can effectively prevent sewage leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation mode of the utility model and the beneficial effects of the utility model, the drawings required for use in the implementation mode or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some implementation modes of the utility model. For ordinary technicians in this field, other structures can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 The utility model is a cross-sectional view Figure 1 .

[0021] Figure 3 The utility model is a cross-sectional view Figure 2 .

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the threaded cover body.

[0023] Explanation of the accompanying figures: Well base -1, cylinder wall -2, positioning column -3, wellbore -4, closing structure -5, well cover -6, pressure ring -7, wellbore connecting seat -8, reserved hole -9, threaded cover body -10, outlet pipe -11, criss-cross reinforcement ribs -12, longitudinal reinforcement ribs -13, positioning groove -14, sealing ring -15, internal thread -16, cover seat -17, filter screen -18. DETAILED DESCRIPTION

[0024] Specific embodiments of the utility model:

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The plastic inspection well of this embodiment includes:

[0026] Well base 1, the well base described in this embodiment is two-way, the side wall of the bottom of the well base extends to form a cylinder wall 2, and a positioning column 3 is arranged at the center of the bottom, and the positioning column is flush with the edge of the cylinder wall;

[0027] A shaft 4, which is detachably mounted on a well base, and has a closing structure 5 in the middle and upper part thereof, which serves to extend the well depth and effectively resist lateral pressure;

[0028] A manhole cover 6 is detachably arranged at the opening of the shaft, and a pressure ring 7 is arranged on the outer side of the upper part of the shaft.

[0029] The inspection well described in this embodiment further comprises a well shaft connecting seat 8, which is arranged between the well base and the well shaft, and a reserved hole 9 is arranged on the well shaft connecting seat, and a detachable connecting structure is arranged at the reserved hole for connecting the outlet pipe 11.

[0030] In this embodiment, crisscross reinforcing ribs 12 are arranged on the outer wall of the well base and the well shaft connecting seat.

[0031] The outer wall of the closing structure described in this embodiment is provided with longitudinal reinforcing ribs 13 .

[0032] The detachable connection structure described in this embodiment is a threaded cover body 10, and a positioning groove 14 is set in the center of the cover body. The size of the positioning groove matches the diameter of the outlet pipe. When installing the outlet pipe, a through hole is cut along the positioning groove, and then the outlet pipe is put on the cover body and finally fixed at the reserved hole.

[0033] The inner wall of the reserved hole in this embodiment is provided with a sealing ring 15 for sealing the outlet pipe after installation.

[0034] The positioning column described in this embodiment is provided with an internal thread 16, which cooperates with the positioning structure on the cushion layer where it is placed to position and fix the inspection well.

[0035] The pressure ring in this embodiment is made of concrete, and a cover seat 17 is arranged between the pressure ring and the shaft wall. The shaft cover is closed at the shaft opening and cooperates with the cover seat to form a sealing structure.

[0036] In the present embodiment, a filter screen 18 integrally formed with the wellbore is provided at the wellbore opening.

[0037] The construction process of the utility model includes:

[0038] Place the inspection wells in sequence according to the well positions corresponding to the design drawings. The cushion layer must be flat during placement, and the well base must be tightened to prevent the inspection well from tilting;

[0039] The plastic inspection well and the pipeline are connected with hot-melt tape or clamps;

[0040] The flexible connection method of heat shrink sleeve and socket between the base and branch pipe and drainage pipe increases the integrity of the overall drainage system, has strong adaptability to resist uneven settlement of pipe foundation and thermal expansion and contraction of materials, and has zero leakage;

[0041] The well base is connected to the wellbore connection seat and the wellbore flange;

[0042] Drill holes, connect and seal the outgoing pipes.

[0043] The plastic inspection well of the present embodiment has high strength, can effectively withstand various pressures of the external structure, has a long service life, is firmly fixed, prevents tilting and loosening during fixed-point installation, and can effectively filter out large particles of debris above. It can be customized and produced according to on-site needs and installed on-site, with low construction difficulty and little impact on the surrounding environment. The wellbore and well seat of the inspection well have good anti-leakage properties, which can effectively prevent sewage leakage. During the test, the pipe openings and reserved openings of the inspection wells at both ends of the test section pipeline are sealed with special rubber bags provided by the manufacturer, and no water seepage is allowed. After sealing, water is injected into the closed water section inspection well. After 24 hours, there is no leakage in the structure of the present embodiment.

[0044] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic inspection well, characterized in that: include: A well base, wherein the well base is one of a single-way, two-way or three-way base, the side wall of the bottom of the well base extends to form a cylinder wall, a positioning column is arranged at the center of the bottom, and the positioning column is flush with the edge of the cylinder wall; A wellbore, wherein the wellbore is detachably arranged on a well base, and the upper middle portion of the wellbore has a closing structure; A manhole cover is detachably arranged at the opening of the wellbore, and a pressure-bearing ring is arranged on the outer side of the upper part of the wellbore.

2. The plastic inspection well according to claim 1, characterized in that: The inspection well also includes a wellbore connecting seat, which is arranged between the well base and the wellbore. A reserved hole is arranged on the wellbore connecting seat, and a detachable connecting structure is arranged at the reserved hole.

3. The plastic inspection well according to claim 2, characterized in that: The well base and the outer wall of the well shaft connecting seat are provided with crisscross reinforcing ribs.

4. The plastic inspection well according to claim 2, characterized in that: Longitudinal reinforcing ribs are arranged on the outer wall of the closing structure.

5. The plastic inspection well according to claim 2, characterized in that: The detachable connection structure is a cover body with a thread, and a positioning groove is arranged at the center of the cover body, and the size of the positioning groove matches the diameter of the outlet pipe.

6. The plastic inspection well according to claim 2, characterized in that: The inner wall of the reserved hole is provided with a seal.

7. The plastic inspection well according to claim 1, characterized in that: The positioning column is provided with an internal thread, which cooperates with the positioning structure on the cushion layer at the placement location to position and fix the inspection well.

8. The plastic inspection well according to claim 1, characterized in that: The pressure-bearing ring is made of concrete, and a cover seat is arranged between the pressure-bearing ring and the wellbore wall. The wellbore cover is closed at the wellbore opening and cooperates with the cover seat to form a sealing structure.

9. The plastic inspection well according to claim 1, characterized in that: A filter screen is arranged at the opening of the wellbore.

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