Drainage filtering device for municipal engineering construction

Abstract

The utility model discloses a drainage filtering device for municipal engineering construction, which comprises a filtering assembly, a support frame, a filter screen arranged on the support frame, a fixing assembly and an extrusion ring, the extrusion ring is arranged on the support frame and is used for being in extrusion contact with the inner wall of a pipeline, a support guide pipe is arranged on the support frame and is communicated with the extrusion ring, and the filter screen is arranged on the support frame. The extrusion ring is composed of an expansion face and a thick bottom face, the expansion face and the thick bottom face are connected in an end-to-end mode to form an air storage cavity, and the expansion face has an expansion state relative to the thick bottom face and has a contraction state relative to the thick bottom face. The supporting frame is made according to different drainage pipes, the extrusion ring is arranged on the supporting frame, the extrusion ring makes contact with the pipe wall after being expanded to extrude the supporting frame and the filter screen used for filtering on the supporting frame, and therefore the effect that the filtering device of the drainage pipe can be rapidly disassembled and assembled in the pipe is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal construction, in particular to a drainage filtering device for municipal engineering construction. Background Art

[0002] Municipal construction drainage refers to the drainage system construction projects carried out during the process of urban construction and renovation to effectively drain rainwater, sewage and groundwater, etc., to ensure the normal operation of urban infrastructure and the comfort of residents' living environment. These projects include rainwater drainage systems, sewage drainage systems, groundwater drainage systems, etc., and are aimed at preventing urban waterlogging and flooding.

[0003] Commonly used rainwater pipes mostly use concrete pipes with larger diameters, especially in rivers. However, during river dredging and daily drainage, duckweed and garbage in the river will drift downstream with the river water. It is cumbersome to install a filter on such concrete pipes. Some even use a cage structure. In the flood season, the filter needs to be removed. Therefore, a drainage filter device for municipal engineering construction is proposed, which is used for quick installation and disassembly at a rainwater drainage outlet made of concrete. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the problem that duckweed and garbage in the river will drift downstream with the river water during river dredging and daily drainage, and the installation of filter nets on existing concrete pipes is cumbersome and needs to be removed during flood seasons, the utility model provides the following technical solutions:

[0006] A drainage filter device for municipal engineering construction includes a filter assembly, including a support frame, and a filter screen arranged on the support frame;

[0007] The fixing assembly includes an extrusion ring, which is arranged on the support frame and is used for extrusion contact with the inner wall of the pipeline. The support frame is provided with a support conduit connected with the extrusion ring;

[0008] The extrusion ring is composed of an expansion surface and a thick bottom surface, and the expansion surface and the thick bottom surface are connected at the end to form an air storage cavity;

[0009] The expansion surface has an expansion state relative to the thick bottom surface;

[0010] The expanded surface has a contracted state relative to the thick bottom surface.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] As a preferred solution of the drainage filtration device for municipal engineering construction described in the utility model, wherein: the filter screen is arranged on the support frame through a filter frame.

[0013] As a preferred solution of the drainage filtration device for municipal engineering construction described in the utility model, the support frame is provided with an adaptation groove, connecting blocks are arranged in a ring shape with equal intervals in the adaptation groove, a groove is provided in the connecting block, an adaptation notch is provided on the extrusion ring, which cooperates with the groove of the connecting block, and the extrusion ring is clamped on the adaptation groove of the support frame.

[0014] As a preferred solution of the drainage filtration device for municipal engineering construction described in the utility model, the expansion surface is composed of a side surface, a curved surface and a contact surface, the side surface is connected to the thick bottom surface, the side surface is connected to the curved surface, the curved surface is connected to the contact surface, and the side surface is in extrusion contact with the inner wall of the adapter groove of the support frame.

[0015] As a preferred solution of the drainage filtering device for municipal engineering construction of the utility model, the contact surface is in the shape of convex strips and is evenly spaced and distributed on the surface where the extrusion ring contacts the pipe.

[0016] As a preferred solution of the drainage filtering device for municipal engineering construction described in the utility model, a conduit is provided at the bottom of the thick bottom surface, the conduit is sealed and sleeved with the supporting conduit, and is connected to the air duct of the supporting conduit.

[0017] The beneficial effect of the utility model is that a support frame is formulated according to different drainage pipes, and then an extrusion ring is arranged on the support frame. After expansion, the extrusion ring contacts and squeezes the pipe wall to squeeze the support frame and the filter screen on the support frame for filtering, thereby achieving the effect of rapid disassembly and assembly of the filtering device of the drainage pipe in the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a stereogram of the whole embodiment.

[0020] Figure 2 It is a three-dimensional diagram of the support frame of this embodiment.

[0021] Figure 3 It is a stereoscopic diagram of the extrusion ring and the supporting conduit of this embodiment.

[0022] Figure 4 It is a three-dimensional diagram of the local structure of the extrusion ring and the supporting conduit of this embodiment.

[0023] Figure 5 It is a structural stereogram of the extrusion ring of this embodiment.

[0024] Figure 6 It is a three-dimensional diagram of the gas cylinder and the driving member of this embodiment.

[0025] In the figure; filter assembly 100, support frame 101, adapter groove 101a, connection block 101b, groove 101b-1, filter frame 102, filter screen 102a;

[0026] Fixed assembly 200, extrusion ring 201, the adapter notch 201a, the gas storage chamber 201b, the catheter 201c;

[0027] Expansion surface 201-1, side surface 201-1a, curved surface 201-1b, contact surface 201-1c;

[0028] Thick bottom surface 201-2;

[0029] Support catheter 202, cylinder 202a, internal thread 202a-1, gas storage chamber 202-1a, air guide tube 202b;

[0030] Driving member 203, connecting rod 203a, driving handle 203a-1, screw rod 203b, piston 203c. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0034] Reference Figures 1 to 5 , is an embodiment of the utility model, which provides a drainage filtration device for municipal engineering construction, such as Figure 1-Figure 3 As shown, the filter assembly 100 includes a support frame 101 and a filter screen 102a arranged on the support frame 101. The support frame 101 is correspondingly arranged in a circular shape corresponding to the concrete pipe. The filter screen 102a is installed on the support frame 101 to effectively filter impurities in the river channel and the discharge port, such as floating objects, oversized particles, etc.;

[0035] The fixing assembly 200 includes an extrusion ring 201, which is arranged on the support frame 101 and is used to be in extrusion contact with the inner wall of the pipe. The extrusion ring 201 is capable of expansion due to its own material characteristics and hollow structure. For this reason, the size of the support frame 101 should be slightly smaller than the inner diameter of the pipe wall. The extrusion ring 201 is sleeved on the support frame 101 to fix it;

[0036] The support frame 101 is provided with a support conduit 202 which is connected to the extrusion ring 201. The so-called support conduit 202 is connected to the extrusion ring 201. The support conduit 202 not only plays a role of connecting to the extrusion ring 201, but also provides gas to the extrusion ring 201 to expand the support frame 101 and the filter screen 102a to facilitate fixing / disassembly on the pipe wall, but also plays a role of reinforcing the support frame 101 and facilitating the installation of the support frame 101 in the pipe wall.

[0037] The extrusion ring 201 is composed of an expansion surface 201-1 and a thick bottom surface 201-2. The expansion surface 201-1 and the thick bottom surface 201-2 are connected to form an air storage cavity 201b. Figure 5 As shown, the thickness of the expansion surface 201 - 1 is much smaller than the thickness of the thick bottom surface 201 - 2 ;

[0038] The so-called expansion surface 201-1 is in an expansion state relative to the thick bottom surface 201-2. When the gas enters the air cavity 201b, the expansion surface 201-1 is evenly expanded and squeezed with the tube wall due to its thin thickness and the material characteristics of the extrusion ring 201. The friction force formed by the extrusion fixes the support frame 101 in the tube wall.

[0039] So-called, the expansion surface 201-1 is in a contracted state relative to the thick bottom surface 201-2, the excess gas leaks from the air cavity 201b, the expansion surface 201-1 collapses and separates from the tube wall, and the support frame 101 can be quickly removed from the tube wall.

[0040] like Figure 1 , Figure 3 As shown, the filter screen 102a is arranged on the support frame 101 through the filter frame 102, and such a setting can facilitate the installation and replacement of the filter frame 102;

[0041] The support frame 101 is provided with an adapting groove 101a, and a connecting block 101b is provided in an annular manner at equal intervals in the adapting groove 101a. A groove 101b-1 is provided in the connecting block 101b. An adapting notch 201a is provided on the extrusion ring 201, which cooperates with the groove 101b-1 of the connecting block 101b. The extrusion ring 201 is clamped on the adapting groove 101a of the support frame 101, so that the extrusion ring 201 is better fixed on the support frame 101. At the same time, when the extrusion ring 201 expands, the expansion degree of the surroundings is relatively uniform, so that the support frame 101 can be quickly fixed and installed in the pipe wall, and can be quickly disassembled later;

[0042] like Figure 5 As shown, the expansion surface 201-1 is composed of a side surface 201-1a, a curved surface 201-1b and a contact surface 201-1c, the side surface 201-1a is connected to the thick bottom surface 201-2, the side surface 201-1a is connected to the curved surface 201-1b, the curved surface 201-1b is connected to the contact surface 201-1c, the side surface 201-1a is in contact with the inner wall of the adapter groove 101a of the support frame 101 by extrusion, and the contact surface 201-1c is in the shape of convex strips and is evenly spaced and distributed on the surface where the extrusion ring 201 contacts the pipe;

[0043] The arc surface 201-1b and the contact surface 201-1c expand simultaneously and contact the pipe wall. The contact surfaces 201-1c distributed at equal intervals contact the pipe wall to form multiple independent sealing layers, increase friction, and improve the stability of the support frame 101 installed in the pipe wall.

[0044] like Figure 4 As shown, a conduit 201c is provided at the bottom of the thick bottom surface 201-2, and the conduit 201c is sealed and sleeved with the support conduit 202, and is connected with the air guide tube 202b of the support conduit 202. The gas enters the air storage cavity 201b of the extrusion ring 201 from the support conduit 202 through the air guide tube 202b to expand and contract. The other end of the support conduit 202 is provided with an air-inflating device, and has sealing properties, such as an air nozzle inflation method similar to that on a tire, or other inflation methods, in order to ensure a sealing effect after inflation; Example

[0045] Reference Figure 1 , Figure 3 and Figure 6 , which is the second embodiment of the utility model. The difference between this embodiment and embodiment 1 is that the inflation and deflation of the extrusion ring 201 is further improved and facilitated. Figure 1 , Figure 6As shown, the support conduit 202 is connected with an air cylinder 202a, and the air cylinder 202a has an air storage chamber 202-1a. The inner wall of the air cylinder 202a is provided with an internal thread 202a-1, which is threadably connected to the screw 203b;

[0046] One end of the screw rod 203b is provided with a piston 203c through a bearing, and the piston 203c is matched and arranged in the cylinder 202a, and the other end of the screw rod 203b is provided with a driving handle 203a-1 through a connecting rod 203a;

[0047] By rotating the driving handle 203a-1 clockwise, the piston 203c at one end of the screw 203b squeezes the gas cylinder 202a, causing the gas to enter the extrusion ring 201 to expand it. Similarly, when the driving handle 203a-1 rotates counterclockwise, the piston 203c extracts the air inside the extrusion ring 201, thereby quickly installing or removing the support frame 101 in the pipe wall.

[0048] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0050] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A drainage filtration device for municipal engineering construction, characterized in that: include, A filter assembly (100) comprises a support frame (101) and a filter screen (102a) arranged on the support frame (101); The fixing assembly (200) comprises an extrusion ring (201), the extrusion ring (201) being arranged on the support frame (101) and used for extrusion contact with the inner wall of the pipeline, and the support frame (101) is provided with a support conduit (202) which is in communication with the extrusion ring (201); The extrusion ring (201) is composed of an expansion surface (201-1) and a thick bottom surface (201-2), and the expansion surface (201-1) and the thick bottom surface (201-2) are connected at the ends to form an air storage cavity (201b); The expansion surface (201-1) is in an expansion state relative to the thick bottom surface (201-2); The expansion surface (201-1) is in a contracted state relative to the thick bottom surface (201-2).

2. The drainage filtration device for municipal engineering construction as claimed in claim 1, characterized in that: The filter screen (102a) is arranged on the support frame (101) via a filter frame (102).

3. The drainage filtration device for municipal engineering construction according to any one of claims 1 and 2, characterized in that: The support frame (101) is provided with an adapting groove (101a), a connecting block (101b) is provided in an annular manner at equal intervals in the adapting groove (101a), a groove (101b-1) is provided in the connecting block (101b), an adapting notch (201a) is provided on the extrusion ring (201), and the notch cooperates with the groove (101b-1) of the connecting block (101b), and the extrusion ring (201) is clamped on the adapting groove (101a) of the support frame (101).

4. The drainage filtration device for municipal engineering construction as claimed in claim 1, characterized in that: The expansion surface (201-1) is composed of a side surface (201-1a), a curved surface (201-1b) and a contact surface (201-1c); the side surface (201-1a) is connected to the thick bottom surface (201-2); the side surface (201-1a) is connected to the curved surface (201-1b); the curved surface (201-1b) is connected to the contact surface (201-1c); and the side surface (201-1a) is in extrusion contact with the inner wall of the adapting groove (101a) of the support frame (101).

5. The drainage filtration device for municipal engineering construction as claimed in claim 4, characterized in that: The contact surface (201-1c) is in the shape of convex strips and is evenly spaced and distributed on the surface where the extrusion ring (201) contacts the pipe.

6. The drainage filtration device for municipal engineering construction according to any one of claims 1 and 4, characterized in that: The bottom of the thick bottom surface (201-2) is connected to a conduit (201c), the conduit (201c) is hermetically sleeved with the support conduit (202), and is in communication with the air guide tube (202b) of the support conduit (202).

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