Prefabricated concrete drainage pipe with filtering structure
By introducing maintenance wells and snap-fit mechanisms into precast concrete drainage pipes, the filter screen can be quickly disassembled and cleaned, solving the problem of easy clogging and ensuring the continuous operation and efficiency of the drainage system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-10
AI Technical Summary
The existing filter devices in precast concrete drainage pipes are not easy to disassemble and clean after installation, which makes the filter screen easy to clog and affects the drainage effect.
The system incorporates a maintenance well and a snap-fit mechanism to enable quick disassembly and cleaning of the filter screen. It also employs a dual-filtration system that operates alternately to ensure continuous drainage filtration.
It enables quick disassembly and cleaning of the filter screen, avoids filter screen clogging, improves the reliability and practicality of the drainage system, and is especially suitable for municipal drainage scenarios where operation cannot be interrupted.
Smart Images

Figure CN224107875U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete drainage pipe technical field, specifically disclose a prefabricated concrete drainage pipe with filter structure. BACKGROUND
[0002] Concrete pipe is the pipe that is made of concrete or reinforced concrete, is used for conveying water, oil, gas and other fluids, and it is divided into four categories of plain concrete pipe, ordinary reinforced concrete pipe, self-stress reinforced concrete pipe and prestressed concrete pipe; according to the different inner diameters of concrete pipe, it can be divided into small diameter pipe, medium diameter pipe and large diameter pipe; according to the different water pressure bearing capacity of pipe, it can be divided into low pressure pipe and pressure pipe.
[0003] Chinese patent CN217204503U discloses a prefabricated concrete drainage pipe with filter structure, including concrete drainage pipe body, filter device body, pipe body and filter frame, the inside of concrete drainage pipe body is equipped with pipe body, the inside of pipe body is equipped with filter device body in the middle, the inside one side of filter device body is equipped with main telescopic rod, the top of main telescopic rod is fixedly connected with first frame, the bottom of main telescopic rod is fixedly connected with second frame, the both sides of main telescopic rod are equipped with vice telescopic rod, the top of vice telescopic rod is fixedly connected with first frame, the bottom of vice telescopic rod is fixedly connected with second frame, the inside other side of filter device body is equipped with filter frame.
[0004] Although the prefabricated concrete drainage pipe with filter structure disclosed in the above document can adapt to concrete drainage pipes of multiple sizes, the filter device is not convenient to disassemble and clean after installation, which leads to filter screen blockage and blockage of the drainage pipe. Therefore, a prefabricated concrete drainage pipe with filter structure is needed to solve this problem. SUMMARY
[0005] The utility model provides a prefabricated concrete drainage pipe with filter structure, realizes the quick disassembly and cleaning of filter screen through maintenance well and clamping mechanism, and adopts double filter mechanisms to work alternately, so that continuous drainage and filtration can be ensured during maintenance, effectively solving the problems of easy blockage of filter screen of traditional drainage pipe and inconvenient maintenance.
[0006] The utility model is implemented as follows: a prefabricated concrete drainage pipe with filter structure includes a drainage pipe body, the outer wall of the drainage pipe body is integrally formed with a maintenance well, the inside of the drainage pipe body is detachably connected with two filter mechanisms through a clamping mechanism, the filter mechanism includes a filter screen body and a frame.
[0007] The clamping mechanism comprises a mounting plate fixedly connected to the upper end surface of the frame, an installation cavity is formed in the interior of the mounting plate, two symmetrically distributed limiting rods are fixedly connected in the interior of the installation cavity, two sliding plates are slidably connected to the outer walls of the two limiting rods, clamping blocks are fixedly connected to the opposite outer walls of the two sliding plates, a rotating shaft extending to the exterior of the mounting plate is rotatably connected in the interior of the installation cavity, a first connecting rod is fixedly connected to the outer wall of the rotating shaft, two second connecting rods are rotatably connected to the outer wall of the first connecting rod, the other ends of the two second connecting rods are rotatably connected with the two sliding plates respectively, springs are sleeved on the outer walls of the two limiting rods and located between the two sliding plates, and a clamping hole with a size matching that of the clamping block is formed through the outer wall of the maintenance well.
[0008] Preferably, the upper end surface of the maintenance well is hingedly connected with a well cover through a hinge seat.
[0009] Preferably, the upper end surface of the drainage pipe body is fixedly connected with a plurality of support plates located in the interior of the maintenance well.
[0010] Preferably, the upper end surface of the rotating shaft is fixedly connected with a handle.
[0011] Preferably, the upper end surface of the drainage pipe body is provided with two through holes with sizes matching those of the filtering mechanism.
[0012] Preferably, the lower side of the clamping block is inclined.
[0013] The present utility model has the advantages of:
[0014] 1. The maintenance well is integrally formed on the outer wall of the drainage pipe body, and the spring clamping mechanism is used to realize quick disassembly and assembly of the filtering mechanism.
[0015] 2. Two independent filtering mechanisms are arranged in the drainage pipe body, one of which can be individually disassembled and cleaned through the maintenance well, while the other remains in normal working condition. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings used in the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.
[0017] Figure 1 It is a whole structure diagram of the prefabricated concrete drainage pipe with the filtering structure.
[0018] Figure 2 It is a main view sectional view of the prefabricated concrete drainage pipe with the filtering structure.
[0019] Figure 3 It is a structure diagram of the filtering mechanism.
[0020] Figure 4 It is a top view sectional view of the mounting plate.
[0021] In the drawings, 1, drainage pipe body; 2, maintenance well; 201, well lid; 3, filtering mechanism; 301, filter screen body; 302, frame; 4, mounting plate; 401, mounting cavity; 402, rotating shaft; 403, first connecting rod; 404, limiting rod; 405, sliding plate; 406, clamping block; 407, spring; 408, second connecting rod; 409, handle; 5, clamping hole; 6, supporting plate. DETAILED DESCRIPTION
[0022] The present application will be further described below in conjunction with the drawings and specific embodiments, so as to help understand the content of the present application. The methods used in the present application are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.
[0023] Please refer to Figures 1-4 A prefabricated concrete drainage pipe with a filtering structure, comprising a drainage pipe body 1, a maintenance well 2 is integrally formed on the outer wall of the drainage pipe body 1, two filtering mechanisms 3 are detachably connected in the interior of the drainage pipe body 1 through a clamping mechanism, the filtering mechanism 3 comprises a filter screen body 301 and a frame 302;
[0024] The clamping mechanism comprises a mounting plate 4 fixedly connected to the upper end face of the frame 302, an installation cavity 401 is formed in the interior of the mounting plate 4, two symmetrical limiting rods 404 are fixedly connected in the interior of the installation cavity 401, two sliding plates 405 are slidingly connected to the outer walls of the two limiting rods 404, clamping blocks 406 are fixedly connected to the outer walls of the two sliding plates 405 away from each other, a rotating shaft 402 extending to the outside of the mounting plate 4 is rotatably connected in the interior of the installation cavity 401, a first connecting rod 403 is fixedly connected to the outer wall of the rotating shaft 402, two second connecting rods 408 are rotatably connected to the outer wall of the first connecting rod 403, the other ends of the two second connecting rods 408 are rotatably connected to the two sliding plates 405 respectively, springs 407 are sleeved on the outer walls of the two limiting rods 404 and located between the two sliding plates 405, and a clamping hole 5 compatible with the specification of the clamping block 406 is formed in the outer wall of the maintenance well 2.
[0025] In the embodiment, when the filter mechanism 3 is disassembled, the handle 409 is rotated to rotate the rotating shaft 402, the rotating shaft 402 drives the first connecting rod 403 to rotate, and then the second connecting rods 408 drive the two sliding plates 405 to slide along the limiting rods 404, the sliding plates 405 further drive the clamping blocks 406 to slide inward, so that the clamping blocks 406 are separated from the clamping hole 5, and the filter mechanism 3 can be disassembled. When the filter mechanism 3 is installed, the filter mechanism 3 is directly inserted into the corresponding through hole of the drain pipe body 1, when the mounting plate 4 contacts the inner wall of the maintenance well 2, the clamping blocks 406 slide inward under the extrusion of the inner wall of the maintenance well 2 and compress the springs 407, when the filter mechanism 3 is inserted into the lowermost end of the drain pipe body 1, the clamping blocks 406 are aligned with the clamping hole 5, at this time, the clamping blocks 406 slide outward under the elastic force of the springs 407 and are clamped into the clamping hole 5, so that the filter mechanism 3 is fixed. The utility model is convenient for disassembling and cleaning the filter mechanism 3 by arranging the maintenance well 2, prevents the filter screen from being blocked, and the two filter mechanisms 3 are arranged, when one filter mechanism 3 is disassembled, the other filter mechanism 3 can be used to filter water, and the use effect is good.
[0026] As a technical optimization scheme of the utility model, the upper end face of the maintenance well 2 is hingedly connected with a well lid 201 through a hinge seat.
[0027] In the embodiment, the well lid 201 is hingedly connected to the upper end face of the maintenance well 2 through the hinge seat, so that the maintenance well 2 is conveniently closed.
[0028] As a technical optimization scheme of the utility model, the upper end face of the drain pipe body 1 is fixedly connected with a plurality of support plates 6 located in the interior of the maintenance well 2.
[0029] In the embodiment, the support plates 6 are convenient for supporting and limiting the mounting plate 4.
[0030] As a technical optimization scheme of the utility model, the upper end face of the rotating shaft 402 is fixedly connected with a handle 409.
[0031] In the embodiment, the handle 409 facilitates the rotation of the rotating shaft 402, saving time and effort.
[0032] As a technical optimization scheme of the utility model, two through holes with specifications matched with the filter mechanism 3 are arranged on the upper end face of the drain pipe body 1.
[0033] In the embodiment, the two through holes with specifications matched with the filter mechanism 3 are arranged on the upper end face of the drain pipe body 1, facilitating the insertion of the filter mechanism 3 into the drain pipe body 1.
[0034] As a technical optimization scheme of the utility model, the lower side of the clamping block 406 is inclined.
[0035] In the embodiment, the lower side of the clamping block 406 is inclined, facilitating the inward extrusion of the clamping block 406 when the filter mechanism 3 is installed, and facilitating the installation.
[0036] The working principle and use process of the utility model are as follows: when the filter mechanism 3 is disassembled, the handle 409 rotates the rotating shaft 402, the rotating shaft 402 drives the first connecting rod 403 to rotate, and then the second connecting rod 408 drives the two sliding plates 405 to slide relative to the limiting rods 404, the sliding plates 405 further drive the clamping blocks 406 to slide inward, so that the clamping blocks 406 are separated from the clamping holes 5, and the filter mechanism 3 can be disassembled; when the filter mechanism 3 is installed, the filter mechanism 3 is directly inserted into the corresponding through hole of the drain pipe body 1, when the installation plate 4 contacts the inner wall of the maintenance well 2, the clamping blocks 406 slide inward under the extrusion of the inner wall of the maintenance well 2 and compress the springs 407, when the filter mechanism 3 is inserted into the lowermost end of the drain pipe body 1, the clamping blocks 406 are aligned with the clamping holes 5, at this time, the clamping blocks 406 slide outward under the elastic force of the springs 407 and are clamped into the clamping holes 5, so that the filter mechanism 3 is fixed, the maintenance well 2 is arranged to facilitate the disassembly and cleaning of the filter mechanism 3, prevent the filter screen from being blocked, and two filter mechanisms 3 are arranged, when one filter mechanism 3 is disassembled, the other filter mechanism 3 can be used to filter water, and the use effect is good.
[0037] In the description of the utility model, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0038] The above is only a specific embodiment of the present application, and cannot limit the scope of the present application. The replacement of equivalent components or equivalent changes and modifications within the scope of the present application should still be within the scope of the present application.
Claims
1. A precast concrete drain pipe with a filtering structure, comprising a drain pipe body (1), characterized in that: The outer wall of the drain pipe body (1) is integrally formed with a manhole (2), and the inside of the drain pipe body (1) is detachably connected with two filter mechanisms (3) through a clamping mechanism. The clamping mechanism comprises a mounting plate (4) fixedly connected to the upper end face of the frame (302), and an installation cavity (401) is formed in the inside of the mounting plate (4), and two symmetrically distributed limiting rods (404) are fixedly connected to the inside of the installation cavity (401), and two sliding plates (405) are slidingly connected to the outer walls of the two limiting rods (404), and clamping blocks (406) are fixedly connected to the outer walls of the two sliding plates (405) away from each other, and a rotating shaft (402) extending to the outside of the mounting plate (4) is rotatably connected to the inside of the installation cavity (401), and a first connecting rod (403) is fixedly connected to the outer wall of the rotating shaft (402), and two second connecting rods (408) are rotatably connected to the outer wall of the first connecting rod (403), and the other ends of the two second connecting rods (408) are rotatably connected to the two sliding plates (405) respectively, and springs (407) are sleeved on the outer walls of the two limiting rods (404) between the two sliding plates (405), and a clamping hole (5) with a size matched with the clamping block (406) is formed in the outer wall of the manhole (2).
2. A precast concrete drainage pipe with filter structure according to claim 1, characterized in that: The upper end face of the manhole (2) is hingedly connected with a manhole cover (201) through a hinge seat.
3. A precast concrete drainage pipe with filter structure according to claim 1, characterized in that: The upper end face of the drain pipe body (1) is fixedly connected with a plurality of support plates (6) located in the inside of the manhole (2).
4. A precast concrete drainage pipe with filter structure according to claim 1, characterized in that: The upper end face of the rotating shaft (402) is fixedly connected with a handle (409).
5. A precast concrete drainage pipe with filter structure according to claim 1, characterized in that: The upper end face of the drain pipe body (1) is provided with two through holes matched with the filter mechanisms (3) in size.
6. A precast concrete drainage pipe with filter structure according to claim 1, characterized in that: The lower side of the clamping block (406) is inclined.
Citation Information
Patent Citations
Prefabricated concrete drainage pipe with filtering structure
CN217204503U