A blocking device for a side-in type rainwater inlet and a construction method thereof

Abstract

The application provides a plugging device for a side-in type rainwater inlet and a construction method thereof, and belongs to the technical field of municipal engineering. The device comprises a positioning frame and a baffle. The positioning frame is used for being clamped with a hole of the side-in type rainwater inlet and has a flow guide opening matched with the side-in type rainwater inlet. The baffle is detachably connected with the positioning frame and is used for plugging the flow guide opening. The positioning frame and the baffle are arranged, the side-in type rainwater inlet is tightly plugged, the positioning frame and the baffle are convenient to assemble and disassemble, and the device is easy to use.

Description

Technical Field

[0001] This invention belongs to the field of municipal engineering technology, and in particular relates to a sealing device for a side-entry rainwater inlet and its construction method. Background Technology

[0002] In many cities, side-entry storm drains are commonly used on roads, bridges, and tunnels to effectively collect rainwater. These drains are specifically designed for rainwater harvesting, with the inlet positioned at the road edge, such as the side of the curb, to guide rainwater into sedimentation or piping systems. However, in areas with heavy winter snowfall, de-icing agents are often used to clear snow from roads. These agents are typically composed of chemicals such as chlorides or potassium acetate. While they can quickly melt snow and ice, they also cause a range of environmental problems. When snowmelt containing de-icing agents flows into storm drains, it can cause soil salinization and potentially pollute groundwater, resulting in irreversible damage to the surrounding environment. Even more seriously, the chemicals in de-icing agents can corrode municipal infrastructure.

[0003] To address this issue, some areas have attempted to use temporary sealing measures. The traditional method typically involves using fire-fighting sandbags for sealing. While simple, this method has significant drawbacks. In winter, under snow and ice cover, fire-fighting sandbags easily freeze and stick to the drain openings, requiring prying and separation for removal, which is time-consuming and laborious. Furthermore, sandbags are prone to developing gaps or leaks due to mud and sand embedding, resulting in ineffective sealing. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a sealing device and construction method for a side-entry rainwater inlet, which achieves a tight seal on the side-entry rainwater inlet, is easy to install and dismantle, and is easy to use.

[0005] The technical solution adopted in this invention is: a sealing device for a side-inlet rainwater inlet, comprising a positioning frame and a baffle; the positioning frame is used to engage with the opening of the side-inlet rainwater inlet and has a guide port adapted to the side-inlet rainwater inlet; the baffle is detachably connected to the positioning frame and is used to seal the guide port.

[0006] Furthermore, the positioning frame includes several connecting strips, which are connected end to end to form the flow guide.

[0007] Furthermore, the connecting strip includes a positioning plate and a limiting plate, wherein the positioning plate is arranged parallel to the water inlet direction; and the limiting plate is perpendicularly connected to one end of the positioning plate.

[0008] Furthermore, the positioning frame also includes a guide groove, which is disposed opposite to the side of the limiting plate away from the positioning plate; both ends of the baffle are slidably connected to the guide groove.

[0009] Furthermore, the guide groove has a sliding inlet and a groove opening; the sliding inlet is located at the other end of the guide groove along its length, and the other end of the guide groove is provided with a sealing plate; the groove openings of the two guide grooves are arranged opposite to each other.

[0010] Furthermore, the baffle and the positioning frame are provided with matching locking holes, and the locking holes are provided with positioning pins; the outside of the positioning pin is provided with a cover plate that matches the locking holes.

[0011] Furthermore, the shape of the baffle is adapted to the flow guide port.

[0012] Furthermore, the edge of the baffle is provided with a sealing element.

[0013] Furthermore, one end of the baffle is provided with an antifreeze pad.

[0014] The construction method of the sealing device for the side-inlet rainwater inlet as described above includes the following steps:

[0015] Embed the positioning frame into the opening of the rainwater inlet, ensuring that the positioning frame is tightly engaged with the opening;

[0016] Apply antifreeze grease to the inner wall of the guide groove and the two end surfaces of the baffle;

[0017] When the snow melting period begins, insert the baffle into the guide groove, then install the positioning pin to lock the baffle, and use a cover plate to seal the locking hole;

[0018] After the snow melting period ends, remove the baffle, clean the residual mud and sand in the guide groove, and check the integrity of the antifreeze pad.

[0019] The advantages and positive effects of this invention are:

[0020] (1) By setting a positioning frame for the side-entry rainwater inlet and using a baffle with an anti-freeze isolation pad to detachably connect to the positioning frame, the baffle can be quickly installed on the positioning frame to block the flow outlet, thereby forming an effective blockage of the rainwater inlet; making the blocking of the rainwater inlet more flexible, with a better blocking effect, and easy to operate and use.

[0021] (2) By setting a guide groove and sliding connection with the baffle, the baffle can be installed and disassembled by inserting and removing the baffle, forming an effective blockage of the side-entry rainwater inlet, making the operation more convenient and improving the installation efficiency of the baffle.

[0022] (3) By setting a sealing element, the baffle can be sealed to the positioning frame, and the sealing effect is good; by setting an antifreeze isolation pad, the baffle can be removed smoothly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the rainwater inlet and positioning frame structure according to a specific embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the positioning frame structure according to a specific embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of a baffle structure according to a specific embodiment of the present invention.

[0026] In the picture:

[0027] 1. Positioning frame; 11. Connecting strip; 2. Guide groove; 3. Opening; 4. Baffle; 5. Seal; 6. Handle; 7. Positioning pin; 8. Locking hole; 9. Antifreeze isolation pad; 10. Antifreeze protective pad. Detailed Implementation

[0028] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0029] Side-entry rainwater inlets (also known as side-flow or side-drain inlets) are commonly found on roof parapets, side walls, and road curbs. Unlike flat-laid rainwater inlets, water from side-entry inlets flows in from the side (horizontally). In existing technologies, fire-fighting sandbags are typically used to temporarily seal side-entry rainwater inlets to prevent de-icing agents from flowing into the inlets with melted snow and contaminating the soil and groundwater. However, the effectiveness and reliability of fire-fighting sandbag sealing are poor, making it difficult to meet the sealing requirements of side-entry rainwater inlets. Therefore, this invention proposes a sealing device and construction method for side-entry rainwater inlets, which offers better sealing results and is more convenient to use.

[0030] like Figures 1 to 3 As shown, this embodiment of the invention proposes a sealing device for a side-entry rainwater inlet, including a positioning frame 1 and a baffle 4. The positioning frame 1 is used to engage with the opening 3 of the side-entry rainwater inlet and has a guide port adapted to the side-entry rainwater inlet. The baffle 4 is detachably connected to the positioning frame 1 and is used to seal the guide port. In this embodiment, the side-entry rainwater inlet is an opening 3 opened on a structure such as a curb or a roof parapet wall. The bottom end of the opening 3 is set close to the horizontal structure to facilitate rainwater to flow in from the side. The positioning frame 1 can be installed on the structure of the opening 3 by engaging, so that the guide port of the positioning frame 1 communicates with the rainwater inlet to form a water passage. The baffle 4 is detachably connected to the positioning frame 1. This setting enables the baffle 4 to be quickly installed on the positioning frame 1 to seal the guide port when snow is melting, thereby effectively sealing the rainwater inlet. In daily use, the baffle 4 can be removed to ensure that rainwater flows smoothly into the guide port and into the rainwater inlet through the guide port. By setting the positioning frame 1 and the baffle 4, the sealing of the rainwater inlet becomes more flexible and has a better sealing effect. At the same time, the installation and disassembly are more convenient, and it is easy to operate and use.

[0031] Furthermore, in this embodiment, the positioning frame 1 includes several connecting strips 11, which are connected end to end to form a guide port. The guide port is formed by the connection of several connecting strips 11, and the shape and number of connecting strips 11 are set according to the shape of the side-entry rainwater inlet. For example, when the side-entry rainwater inlet is rectangular, the connecting strips 11 can be straight, and four connecting strips 11 are connected end to end to form a rectangular guide port; when the side-entry rainwater inlet is circular, the connecting strips 11 can be circular or arc-shaped, and one circular connecting strip 11 is connected end to end to form a circular guide port, or multiple arc-shaped connecting strips 11 are connected end to end to form a circular guide port. Through this design, it is ensured that the shape of the guide port is adapted to the existing shape of the side-entry rainwater inlet, thereby providing a basis for the baffle 4 to block the rainwater inlet.

[0032] Furthermore, in this embodiment, the connecting strip 11 includes a positioning plate and a limiting plate. The positioning plate is arranged parallel to the water inlet direction; the limiting plate is vertically connected to one end of the positioning plate. It can be understood that the rainwater inlet has a certain depth along the water inlet direction, thereby forming the inner wall of the opening 3 of the rainwater inlet. The positioning plate is used to fit and connect with the inner wall of the opening 3 of the rainwater inlet. The two fit tightly together, forming a stable connection through friction, so that the positioning plate can be fixed on the inner side of the inner wall, which is easy to operate. For example, the positioning plate can be inserted into the opening 3 of the rainwater inlet from the outside to the inside along the water inlet direction to complete the installation of the positioning frame 1; or if necessary, the positioning plate can be pulled out of the opening 3 of the rainwater inlet to remove the positioning frame 1. On the other hand, this design can also avoid the formation of gaps between the inner wall and the positioning plate, preventing rainwater or snow water from seeping into the rainwater inlet from the gap between the two, thereby ensuring a good sealing effect.

[0033] In a specific embodiment, such as Figure 3 As shown, the side-entry rainwater inlet is rectangular in shape, and the connecting strip 11 is made of angle steel. Four angle steels are welded vertically end to end to form a positioning frame 1. The angle steel includes two mutually perpendicular plates, one of which is a positioning plate. The positioning plates are connected to form a continuous structure. Both the limiting plate and the positioning plate have length and width. They are connected along the length direction and the limiting plate is set at the same end in the width direction of the positioning plate. This method simplifies the manufacturing process of the positioning frame 1. Angle steel is a common material on construction sites. It is inexpensive and easy to obtain, thereby reducing the manufacturing cost of the positioning frame 1.

[0034] It is understood that in the above embodiment, the length of the positioning plate is adapted to the side length of the rainwater inlet 3, so that the shape formed by the positioning plate can be inserted into the inlet 3. The outer side of the positioning plate can fit tightly against the inner wall of the inlet 3 and abut against each other. The friction between the two restricts the positioning plate from moving along the axial direction of the inlet 3. When the positioning plate is stuck in the inlet 3, the limiting plate fits against the outer wall of the inlet 3. The two work together to firmly fix the positioning frame 1 in the set position of the rainwater inlet. This not only enables convenient and accurate installation of the positioning frame 1, but also further strengthens the limiting of the positioning frame 1 to prevent it from moving under the action of water flow.

[0035] Furthermore, in this embodiment, the positioning frame 1 further includes a guide groove 2, which is disposed opposite to the end of the limiting plate away from the positioning plate; both ends of the baffle 4 are slidably connected to the guide groove 2. The guide groove 2 is used to connect the baffle 4, and the baffle 4 can be installed at the end of the limiting plate away from the positioning plate through the guide groove 2. That is, with the limiting plate as the boundary, the positioning plate is located inside the opening 3, and the guide groove 2 and the baffle 4 are both located on the opposite outer side of the rainwater inlet opening 3, providing a sufficiently open space for the installation of the baffle 4 and providing a basis for the sliding connection between the guide groove 2 and the baffle 4; the sliding connection makes the installation of the baffle 4 more convenient, and at the same time, the guide groove 2 limits the moving direction and moving range of the baffle 4, thereby realizing the limitation of the baffle 4, so that the baffle 4 can be installed in the set position, which not only improves the installation efficiency of the baffle 4, but also forms an effective blockage of the diversion port, thereby achieving the blockage of the rainwater inlet.

[0036] The aforementioned guide groove 2 is linear, with two grooves forming a group and parallel to each other. The distance between the two guide grooves 2 is adapted to the width of the baffle 4, so that both ends of the baffle 4 can be engaged with the guide groove 2 respectively. The baffle 4 can only move linearly in a set direction to a set position. Its moving direction can be set as needed. For example, it can move from top to bottom, or from the left side of the rainwater outlet to the right side, or from the right side of the rainwater outlet to the left side. Generally, the bottom of the rainwater outlet is close to the ground or roof, and the space is insufficient to allow the baffle 4 to move.

[0037] In one specific embodiment, the side-entry rainwater inlet is rectangular in shape, the connecting strip 11 is made of angle steel, and the four angle steels are welded vertically end to end to form a positioning frame 1; two guide grooves 2 are respectively set on the limiting strips 11 on the left and right sides of the rainwater inlet.

[0038] In one alternative technical solution, the guide groove 2 has a sliding inlet and a slot; the sliding inlet is located at the other end of the guide groove 2 along its length, and the other end of the guide groove 2 is provided with a sealing plate; the slots of the two guide grooves 2 are arranged opposite to each other. The sliding inlet is used to accommodate one end of the baffle 4 along the moving direction to pass through and slide into the guide groove 2. The sealing plate is used to contact this end to limit the movement of the baffle 4; the slot is used to accommodate the opposite ends of the baffle 4 to pass through, so that the guide groove 2 fixes and limits the movement of the baffle 4.

[0039] Preferably, the guide groove 2 is a U-shaped groove, which can be formed by welding an L-shaped component to the limiting plate.

[0040] U-shaped groove; preferably, the sliding inlet of the U-shaped groove faces the top of the rainwater inlet, so that the baffle 4 can slide down along the guide groove 2 under the action of gravity, while the sealing plate supports the baffle 4 to form a stable force system, thereby improving the fixing and limiting effect of the baffle 4.

[0041] In the above embodiment, the length of the guide groove 2 can be shorter than that of the limiting plate, as long as the sealing plate is positioned at the bottom of the limiting plate so that the baffle 4 can completely block the flow port; the inner side of the guide groove 2 is provided with an antifreeze grease coating so that the baffle 4 can slide smoothly into the guide groove 2.

[0042] Furthermore, in this embodiment, the baffle 4 and the positioning frame 1 are provided with matching locking holes 8, and a positioning pin 7 is provided inside the locking hole 8; a cover plate matching the locking hole 8 is provided on the outside of the positioning pin 7. The positioning pin 7 is threadedly connected to the locking hole 8, fixing the baffle 4 to the positioning frame 1, which further improves the stability and tightness of the connection between the two, ensuring the sealing effect of the baffle 4; by setting the cover plate, effective protection is formed for the positioning pin 7, preventing it from being accidentally bumped or falling off, which would result in the baffle 4 not sealing properly.

[0043] In one specific embodiment, both the limiting plate connected to the guide groove 2 and the guide groove 2 are provided with locking holes 8. When the baffle 4 is inserted into the guide groove 2, the locking holes 8 of the three are connected and tightly connected together by the positioning pin 7. Preferably, there are at least two locking holes 8 on each side, arranged along the height direction during use.

[0044] Furthermore, the shape of the baffle 4 is adapted to the flow guide opening. Preferably, the shape of the baffle 4 is slightly larger than the flow guide opening, which can form a full-range coverage of the flow guide opening to achieve effective sealing.

[0045] Furthermore, in one specific embodiment, the edge of the baffle 4 is provided with a sealing element 5; both ends of the baffle 4 are connected to the guide groove 2, and the other parts are opposite to the limiting strip 11; by providing the sealing element 5, the baffle 4 can be sealed to the guide groove 2 and the limiting strip 11, effectively preventing water from seeping into the guide port through the gap, thus forming a good sealing effect. Preferably, the sealing element 5 is a sealing rubber ring.

[0046] Furthermore, in one specific embodiment, one end of the baffle 4 is provided with an antifreeze pad 9. In use, the end of the baffle 4 with the antifreeze pad 9 is located at the bottom of the side-entry rainwater inlet, closer to the snow-covered ground or roof. By providing the antifreeze pad 9, the baffle 4 can be effectively prevented from freezing onto the positioning frame 1 during freeze-thaw cycles, ensuring that the baffle 4 can be moved out of the positioning frame 1 as needed.

[0047] Preferably, a handle 6 is provided on one side of the baffle 4 to facilitate the operator to hold and install or remove the baffle 4; an antifreeze protective pad 10 is provided on the outside of the handle 6.

[0048] This application also proposes a construction method for the sealing device of the above-mentioned side-inlet rainwater inlet, including the following steps:

[0049] S1. Insert the positioning frame 1 into the opening 3 of the rainwater inlet, ensuring that the positioning frame 1 and the opening 3 are tightly connected;

[0050] S2. Apply antifreeze grease to the inner wall of the guide groove 2 and the two ends of the baffle 4;

[0051] It is important to note that before winter arrives, the wear condition of seal 5 should be checked again, and antifreeze grease should be added.

[0052] S3. When the snow melting period begins, insert the baffle 4 into the guide groove 2, then install the positioning pin 7 to lock the baffle 4, and use a cover plate to seal the locking hole 8.

[0053] S4. After the snow melting period ends, remove the baffle 4, clean the residual mud and sand in the guide groove 2, and check the integrity of the antifreeze pad 9.

[0054] The advantages and positive effects of this invention are:

[0055] (1) By setting a positioning frame for the side-entry rainwater inlet and using a baffle with an anti-freeze isolation pad to detachably connect to the positioning frame, the baffle can be quickly installed on the positioning frame to block the flow outlet, thereby forming an effective blockage of the rainwater inlet; making the blocking of the rainwater inlet more flexible, with a better blocking effect, and easy to operate and use.

[0056] (2) By setting a guide groove and sliding connection with the baffle, the baffle can be installed and disassembled by inserting and removing the baffle, forming an effective blockage of the side-entry rainwater inlet, making the operation more convenient and improving the installation efficiency of the baffle.

[0057] (3) By setting a sealing element, the baffle can be sealed to the positioning frame, and the sealing effect is good; by setting an antifreeze isolation pad, the baffle can be removed smoothly.

[0058] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A sealing device for a side-entry rainwater inlet, characterized in that: It includes a positioning frame and a baffle; the positioning frame is used to engage with the opening of the side inlet rainwater inlet and has a guide port adapted to the side inlet rainwater inlet; the baffle is detachably connected to the positioning frame and is used to block the guide port.

2. The sealing device for the side-entry rainwater inlet according to claim 1, characterized in that: The positioning frame includes several connecting strips, which are connected end to end to form the flow guide.

3. The sealing device for the side-entry rainwater inlet according to claim 2, characterized in that: The connecting strip includes a positioning plate and a limiting plate. The positioning plate is arranged parallel to the water inlet direction, and the limiting plate is perpendicularly connected to one end of the positioning plate.

4. The sealing device for the side-entry rainwater inlet according to claim 3, characterized in that: The positioning frame also includes a guide groove, which is disposed opposite to the limiting plate on the side away from the positioning plate; both ends of the baffle are slidably connected to the guide groove.

5. The sealing device for the side-entry rainwater inlet according to claim 4, characterized in that: The guide groove has a sliding inlet and a groove opening; the sliding inlet is located at the other end of the guide groove along its length, and the other end of the guide groove is provided with a sealing plate; the groove openings of the two guide grooves are arranged opposite to each other.

6. The sealing device for the side-inlet rainwater inlet according to any one of claims 1-5, characterized in that: The baffle and the positioning frame are provided with matching locking holes, and the locking holes are provided with positioning pins; the outside of the positioning pin is provided with a cover plate that matches the locking holes.

7. The sealing device for the side-entry rainwater inlet according to claim 1, characterized in that: The shape of the baffle is adapted to the flow guide.

8. The sealing device for the side-entry rainwater inlet according to claim 7, characterized in that: The edge of the baffle is provided with a sealing element.

9. The sealing device for the side-entry rainwater inlet according to claim 8, characterized in that: One end of the baffle is equipped with an antifreeze pad.

10. The construction method of the sealing device for the side-entry rainwater inlet as described in any one of claims 1-9, characterized in that, Includes the following steps: Embed the positioning frame into the opening of the rainwater inlet, ensuring that the positioning frame is tightly engaged with the opening; Apply antifreeze grease to the inner wall of the guide groove and the two end surfaces of the baffle; When the snow melting period begins, insert the baffle into the guide groove, then install the positioning pin to lock the baffle, and use a cover plate to seal the locking hole; After the snow melting period ends, remove the baffle, clean the residual mud and sand in the guide groove, and check the integrity of the antifreeze pad.

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