Stable protective plastic inspection well
By installing reinforcements at the joints of the sludge chamber of the plastic inspection well, the deviation blurring and extrusion deformation problems at the pipe connection ends during thermal expansion and contraction and concrete pouring are solved, and a more stable connection is achieved to avoid water leakage.
Patent Information
- Application Number
- CN202422051868.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-22
AI Technical Summary
Existing plastic inspection wells are prone to offset and extrusion deformation at the pipe connection ends during thermal expansion, shrinkage and concrete pouring, resulting in water leakage problems.
Install reinforcements at the connection between the water inlet and outlet ends of the sludge chamber well seat, including guard plates and bolts, lock the drain pipes through locking parts to prevent blurring, and tighten the guard plates through hinges and bolts to enhance the stability of the connection.
It effectively improves the firmness between the drainage pipe and the well seat of the sludge chamber, prevents the flue offset caused by thermal expansion and contraction during concrete pouring, and avoids water leakage.
Smart Images

Figure CN223034163U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic inspection wells, in particular to a plastic inspection well with stable protection. Background Art
[0002] Plastic drainage inspection well is a kind of inspection well. The scientific name of plastic drainage inspection well is "plastic inspection well". Commonly known as "plastic manhole". It is a kind of inspection well. Because it is made of polymer resin material by one-time injection molding, it is called plastic drainage inspection well. Plastic inspection well is a plastic drainage pipe buried in the building area (residential area, public building area, factory area, etc.) with an outer diameter of no more than 800mm and a buried depth of no more than 6m. It is generally located at the intersection of drainage pipes, turning points, pipe diameter or slope changes, waterfalls, etc., in order to facilitate regular inspection, cleaning and dredging or downhole operations. The inspection is made of plastic one-piece injection molding. Plastic inspection well refers to the main well seat part of the inspection well, which is made of polymer resin material by one-time injection molding. According to the number of pipes and angles, there are starting well seats, straight well seats, 45-degree elbow well seats, three-way well seats, four-way well seats, etc. In order to adapt to various drainage conditions, plastic inspection wells are also equipped with matching plastic one-piece injection molding accessories such as reducers, confluence joints, and well shaft multi-joints. In order to ensure the smoothness and sealing of the entire drainage system, the pipe diameter or slope changes, the water drop, and the straight pipe section at a certain distance are drainage auxiliary structures that are convenient for regular inspection, cleaning, and dredging of pipes. The inspection well is made of polymer resin as raw material and adopts a combined structure. It is generally composed of an inspection well seat, a well shaft, a well cover, etc., and is divided into sewage (waste) water inspection wells and rainwater inspection wells. Sewage wells are generally equipped with flow troughs to facilitate smooth discharge of sewage, and rainwater wells (generally equipped with a sedimentation chamber for mud and sand sedimentation) are convenient for later cleaning and maintenance.
[0003] Water leakage may occur between the interconnected drainage pipes. On the one hand, after installation, due to changes in the external weather, the pipes expand and contract, causing the connection ends to come loose; on the other hand, during pouring, the pipes are squeezed and deformed due to the extrusion of concrete. A solution is proposed below to address the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a plastic inspection well with stable protection. By installing reinforcement pieces at the pipe connections at both ends of the sludge chamber well seat, the problems of pipe displacement and dislocation due to thermal expansion and contraction between pipes and pipe extrusion and deformation during pouring can be effectively solved.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] A plastic inspection well with stable protection, comprising: a sedimentation chamber well seat, a wellbore, a reinforced concrete layer, a laying layer and a protective manhole cover; the sedimentation chamber well seat is located at the top of the reinforced concrete layer, and the sedimentation chamber well seat has a through water inlet end and a water outlet end; drainage pipes are connected to both the water inlet end and the water outlet end of the sedimentation chamber well seat, and a reinforcement member for preventing the pipeline from slipping off and shifting is installed at the pipeline connection end; the wellbore is cast on the sedimentation chamber well seat; the laying layer is cast around the wellbore; the protective manhole cover is installed at the opening end of the wellbore.
[0007] Preferably, the reinforcement member includes a protective plate and bolts. The protective plates are symmetrically arranged at the connection ends of the water inlet end and the water outlet end. The connection ends of the water inlet end and the water outlet end of the sedimentation chamber well seat and the drainage pipes are locked by a locking member. One end between the protective plates is in hinge fit, and the other end of the protective plate is fastened by a bolt passing through.
[0008] Preferably, a branch pipe opening is also provided on the wellbore, and a branch pipe is connected to the branch pipe opening.
[0009] Preferably, the laying layer includes a C25 concrete base layer, a gravel cushion layer and bricklaying. The gravel cushion layer, the C25 concrete base layer and the bricklaying are cast around the wellbore in sequence from bottom to top.
[0010] Preferably, a C30 concrete well ring is cast around the protective manhole cover.
[0011] Preferably, the casting ratio between the gravel cushion layer, the C25 concrete base layer and the bricklaying is 1:2:1.
[0012] Preferably, the reinforced concrete layer is made of C25 reinforced concrete, with a thickness of 100 mm, and the reinforcement is arranged in a single-layer bidirectional pattern of Φ12*120.
[0013] Beneficial effects: Reinforcement members are added to the connection ends of the water inlet end and the water outlet end of the sedimentation chamber well seat, improving the firmness between the drainage pipe and the sedimentation chamber well seat, avoiding extrusion deformation and leakage at the pipeline connection end during concrete pouring, and using a locking member such as wire or steel cable at the pipeline connection to improve the connection firmness of the port, preventing the pipeline from slipping off and shifting in hot and cold weather. Description of the Drawings
[0014] Figure 1 It is a structural schematic diagram of the embodiment;
[0015] Figure 2 It is for showing in the embodiment Figure 1 a half-sectional view;
[0016] Figure 3 It is for showing in the embodiment Figure 1 an enlarged view in the direction A.
[0017] Reference numerals: 1, sediment chamber manhole base; 2, wellbore; 3, reinforced concrete layer; 4, laying layer; 5, protective manhole cover; 6, drainage pipe; 7, protective plate; 8, bolt; 9, branch pipe opening; 10, C25 concrete foundation layer; 11, gravel cushion layer; 12, brickwork; 13, C30 concrete manhole ring. Specific implementation manners
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0020] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0021] In addition, the technical features involved in different implementation manners of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0022] This embodiment provides a plastic inspection well with stable protection, as shown in Figures 1 to 3 shown, including: a sediment chamber manhole base, a wellbore, a reinforced concrete layer, a laying layer, and a protective manhole cover; the sediment chamber manhole base is located at the top of the reinforced concrete layer, and there are through inlet and outlet ends on the sediment chamber manhole base; drainage pipes are connected to both the inlet and outlet ends of the sediment chamber manhole base, and reinforcement members for preventing the pipeline from slipping off and shifting are installed at the pipeline connection ends; the wellbore is cast on the sediment chamber manhole base; the laying layer is cast around the wellbore; the protective manhole cover is installed at the opening end of the wellbore.
[0023] With the above basic structure, the reinforcement member includes a protective plate and bolts. The protective plates are symmetrically arranged at the connection ends of the water inlet end and the water outlet end. The connection ends of the sediment chamber well seat at the water inlet end and the water outlet end are locked with the drainage pipe through locking members. One end between the protective plates is in hinge fit, and the other end of the protective plate is fastened by bolts passing through.
[0024] With the above basic structure, branch pipe openings are also provided on the wellbore, and branch pipes are connected to the branch pipe openings. Other branch pipes are connected to the branch pipe openings, facilitating the through-flow of water sources in the plastic inspection well.
[0025] With the above basic structure, the laying layer includes a C25 concrete base layer, a gravel cushion layer, and brickwork. The gravel cushion layer, the C25 concrete base layer, and the brickwork are sequentially poured around the wellbore from bottom to top.
[0026] With the above basic structure, the pouring ratio between the gravel cushion layer, the C25 concrete base layer, and the brickwork is 1:2:1.
[0027] With the above basic structure, a C30 concrete well ring is poured around the protective well cover. The stepped opening that can be poured by the C30 concrete well ring fits with the protective well cover.
[0028] With the above basic structure, the reinforced concrete layer is made of C25 reinforced concrete, with a thickness of 100 mm and a single-layer bidirectional arrangement of steel bars Φ12*120.
[0029] Add a protective plate and bolts to the connection ends of the water inlet end and the water outlet end of the sediment chamber well seat. Install two semi-circular protective plates at the pipe connection end to improve the firmness between the drainage pipe and the sediment chamber well seat, and avoid extrusion deformation and leakage at the pipe connection end during concrete pouring. The first-poured concrete can impact on the protection, indirectly protecting the pipe connection. Use locking members such as iron wires or steel cables for the pipe connection to improve the port connection stability and prevent the pipe from popping off and shifting in hot and cold weather.
[0030] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creation of the present utility model.
Claims
1. A plastic inspection well with stable protection, characterized in that: include: Sediment chamber well base, well shaft, reinforced concrete layer, paving layer and protective well cover; The sludge chamber well seat is located on the top of the reinforced concrete layer, and the sludge chamber well seat has a through water inlet and a water outlet; The water inlet and outlet ends of the well seat of the sludge chamber are both connected to drainage pipes, and reinforcement pieces are installed on the pipe connection ends to prevent the pipes from slipping and deflecting; The wellbore is cast on the well seat of the sludge chamber; The paving layer is poured around the shaft; The protective well cover is installed at the open end of the wellbore.
2. A plastic inspection well with stable protection according to claim 1, characterized in that: The reinforcement includes a protective plate and bolts. The protective plates are symmetrically arranged at the connecting ends of the water inlet and the water outlet. The connecting ends of the water inlet and the water outlet of the sludge chamber well seat are locked with the drainage pipe through locking pieces. One end of the protective plates is hinged, and the other end of the protective plates is fastened by bolts.
3. A plastic inspection well with stable protection according to claim 1, characterized in that: The wellbore is also provided with a branch pipe opening, to which a branch pipe is connected.
4. A plastic inspection well with stable protection according to claim 1, characterized in that: The paving layer includes a C25 concrete foundation layer, a crushed stone cushion layer and brickwork, and the crushed stone cushion layer, the C25 concrete foundation layer and the brickwork are poured sequentially from bottom to top around the shaft.
5. A plastic inspection well with stable protection according to claim 1, characterized in that: The protective manhole cover is surrounded by a C30 concrete well ring.
6. A plastic inspection well with stable protection according to claim 4, characterized in that: The pouring ratio between the crushed stone cushion layer, C25 concrete foundation layer and brickwork is 1:2:
1.
7. A plastic inspection well with stable protection according to claim 1, characterized in that: The reinforced concrete layer adopts C25 reinforced concrete, with a thickness of 100mm and reinforcement of Φ12*120 in a single layer and bidirectional arrangement.