A shunt noise reduction air dam

Abstract

The utility model relates to air shield dam technical field, specifically disclose a shunt noise reduction air shield dam, including support base bottom plate, its upper surface is provided with the protection shield, the lower surface of protection shield is fixedly connected with the positioning connecting plate, the upper surface of support base bottom plate is opened with the positioning installation groove, the upper surface of support base bottom plate is fixedly connected with the air bag body, the outer surface of protection shield one end is provided with the shunt mounting plate, the side surface of shunt mounting plate is fixedly connected with the shunt baffle. The shunt noise reduction air shield dam, through the shunt baffle of arc design, the width of increasing strip shunt slot and semicircular cylindrical buffer block, the concentrated water flow under the overflow state is layered and dispersed, and is matched with the arc buffer pad and is weakened water flow impact strength, the noise of water flow impact support base bottom plate and dam back water body is reduced greatly, avoids the noise pollution to the bank side resident, and the surrounding environment comfort degree is improved.

Description

Technical Field

[0001] This utility model relates to the field of air shield dam technology, specifically an air shield dam for diversion and noise reduction. Background Technology

[0002] The pneumatic shield dam, also known as the pneumatic steel shield rubber dam, is a new type of water-retaining structure. It mainly consists of a shield plate, inflatable airbags, and a control system. The shield plate is made of stainless steel or carbon steel with a surface treated with polyurea or hot-dip galvanizing. The units are connected by high-strength rubber composite belts. The airbags are made of multi-layer aramid skeleton material and special rubber. The working principle is to use inflatable airbags to support the shield plate to block water and achieve the function of water storage. When flood discharge is required, the airbags are deflated, the shield plate falls down, the airbags lie under the shield plate, and the dam body collapses, which can quickly release floodwater. Its structure is simple, easy to install, and its unitized and modular structure does not require the use of large construction equipment and has a short construction period.

[0003] When existing air-supported dams are in use, the water flowing from the upper part of the shield plate directly impacts the foundation slab of the air-supported dam and the water behind the dam when the dam is in overflow mode, resulting in a lot of noise and causing some noise pollution to residents on the shore. Utility Model Content

[0004] The purpose of this invention is to provide a diversion and noise reduction air shield dam to solve the problem mentioned in the background art, where when the air shield dam is in overflow state, the water flowing at the upper part of the shield plate directly impacts the foundation plate of the air shield dam and the water behind the dam, resulting in loud noise and causing noise pollution to residents on the shore.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a diversion and noise reduction air shield dam, comprising a supporting foundation base plate, a protective shield plate disposed on its upper surface, a positioning connecting plate fixedly connected to the lower surface of the protective shield plate, a positioning mounting groove formed on the upper surface of the supporting foundation base plate, an airbag body fixedly connected to the upper surface of the supporting foundation base plate, a diversion mounting plate disposed on the outer surface of one end of the protective shield plate, a diversion baffle fixedly connected to the side surface of the diversion mounting plate, a buffer pad fixedly connected to the lower end of the diversion baffle, a diversion groove formed on the surface of the diversion baffle, a buffer block fixedly connected to the inner wall of the diversion groove, two mounting grooves formed on the surface of the buffer pad, and a guide limiting mechanism disposed between the mounting grooves and the supporting foundation base plate.

[0006] Preferably, the positioning connecting plate has an opening on its surface, the positioning mounting groove has a threaded hole on its bottom surface, and the positioning mounting groove and the positioning connecting plate are engaged.

[0007] Using the above technical solution, the positioning connecting plate and the positioning installation slot are engaged to quickly achieve accurate positioning of the protective shield plate, avoid installation misalignment, and the opening and threaded hole can be matched to fix it with bolts for secondary fixation, thereby enhancing the connection firmness and improving the overall stability of the dam.

[0008] Preferably, the diversion mounting plate is fixedly connected to the lower surface of one end of the protective shield plate by bolts, the inner and outer surfaces of the diversion baffle are both arc-shaped, and the width of the diversion baffle increases from top to bottom.

[0009] Using the above technical solution, the diversion mounting plate is fixed with bolts, which is convenient for disassembly and assembly, and facilitates later maintenance or replacement of diversion components. The arc-shaped diversion baffle reduces the water flow impact resistance, and the width increases from top to bottom, which can disperse the water flow energy layer by layer and reduce the impact intensity.

[0010] Preferably, the upper surface of the buffer pad is arc-shaped, the diversion slot is strip-shaped and the width of the diversion slot increases from top to bottom, and the buffer block is semi-cylindrical and the radius of the buffer block increases from top to bottom.

[0011] Using the above technical solutions, the arc-shaped buffer pad can guide the water flow to transition smoothly, reduce the hard impact between the water flow and the pad, reduce noise, the strip-shaped diversion grooves increase in width to achieve layered diversion of water flow and avoid concentrated impact, and the semi-cylindrical buffer block radius increases in radius to further buffer the impact force of water flow and improve the noise reduction effect.

[0012] Preferably, the guide limiting mechanism includes a limiting connecting block, which is disposed on the inner wall of the mounting slot. A supporting roller is provided at the lower end of the limiting connecting block. Two limiting sliding grooves are provided on the surface of the supporting base plate. Two auxiliary sliding rails are provided on the inner wall of the limiting sliding grooves. Two auxiliary sliders are fixedly connected to the side surface of the limiting connecting block.

[0013] Using the above technical solution, the components of the guide and limit mechanism work together to provide stable support for the buffer pad, preventing the pad from shifting due to water flow impact. The combined design of the support roller, limit slide groove and auxiliary slide rail allows the pad to flexibly adjust its position according to the water flow pressure, adapting to different overflow intensities.

[0014] Preferably, the upper end of the limiting connecting block is arc-shaped, and the upper end of the limiting connecting block is rotatably connected to the mounting slot. The limiting connecting block is rotatably connected to the supporting roller, and the supporting roller is in contact with the bottom surface of the limiting groove.

[0015] By adopting the above technical solution, the upper arc design of the limiting connecting block and the rotating connection reduce friction with the installation slot, improve the flexibility of the pad adjustment, and support the roller to fit with the limiting slide groove, converting sliding friction into rolling friction, reducing running resistance, and ensuring the stability of the pad's movement trajectory.

[0016] Preferably, the vertical cross-section of the limiting slide groove and the auxiliary slide rail is T-shaped, the two auxiliary sliders are symmetrically arranged, and the auxiliary sliders and the auxiliary slide rail form a sliding connection.

[0017] The above technical solution uses a T-shaped cross-section limiting groove and auxiliary slide rail to prevent the auxiliary slider from detaching from the track, thus improving structural safety. The symmetrically arranged auxiliary sliders are slidably connected to the slide rail to ensure that the pad is subjected to balanced force, avoid unilateral offset, and ensure stable diversion and noise reduction effect.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the air shield dam for noise reduction and flow diversion:

[0019] 1. By using arc-shaped diversion baffles, strip-shaped diversion slots with increasing width, and semi-cylindrical buffer blocks, the concentrated water flow in the overflow state is dispersed in layers. At the same time, the arc-shaped buffer pads weaken the impact of the water flow, greatly reducing the noise generated by the water flow impacting the foundation slab and the water body behind the dam, avoiding noise pollution to the residents on the bank and improving the comfort of the surrounding environment.

[0020] 2. The positioning connecting plate and the positioning mounting slot are engaged and connected, and the bolt fixing structure with the opening and threaded hole is used to achieve precise positioning and firm installation of the protective shield plate. The diversion mounting plate is connected to the protective shield plate by bolts. The diversion components can be easily disassembled and replaced in the future, reducing maintenance difficulty and cost, and ensuring the long-term stable operation of the dam.

[0021] 3. In the guide and limit mechanism, the rolling cooperation between the support roller and the limit slide groove, and the sliding connection between the auxiliary slider and the auxiliary slide rail, can drive the buffer pad to flexibly adjust its position according to the water flow pressure. At the same time, the T-shaped cross-section structure prevents the components from leaving the track, ensuring the stable movement of the pad under different overflow intensities and ensuring that the diversion and noise reduction effect is always stable, adapting to various hydrological conditions. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the supporting foundation plate and the protective shield plate of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the protective shield plate and the positioning connecting plate of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the supporting foundation plate and the positioning mounting groove of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the limiting slide groove and the auxiliary slide rail of this utility model;

[0026] Figure 5This is a three-dimensional structural diagram of the connection between the diversion mounting plate and the diversion baffle of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the limiting connecting block and the supporting roller of this utility model.

[0028] In the diagram: 1. Support base plate; 2. Protective shield plate; 3. Positioning connecting plate; 4. Positioning mounting groove; 5. Airbag body; 6. Diversion mounting plate; 7. Diversion baffle; 8. Buffer pad; 9. Diversion groove; 10. Buffer block; 11. Mounting groove; 12. Limiting connecting block; 13. Support roller; 14. Limiting slide groove; 15. Auxiliary slide rail; 16. Auxiliary slider. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a diversion and noise reduction air shield dam, including a supporting foundation plate 1, a protective shield plate 2, a positioning connecting plate 3, a positioning mounting groove 4, an airbag body 5, a diversion mounting plate 6, a diversion baffle 7, a buffer pad 8, a diversion groove 9, a buffer block 10, an installation groove 11, a limiting connecting block 12, a supporting roller 13, a limiting slide groove 14, an auxiliary slide rail 15, and an auxiliary slider 16. The supporting foundation plate 1 has a protective shield plate 2 on its upper surface, and a positioning connecting plate 3 is fixedly connected to the lower surface of the protective shield plate 2. The surface of the positioning connecting plate 3 has openings, and the bottom surface of the positioning mounting groove 4 has openings. The threaded hole, the positioning mounting groove 4 and the positioning connecting plate 3 form a snap-fit ​​connection. The diversion mounting plate 6 is fixedly connected to the lower surface of one end of the protective shield plate 2 by bolts. The inner and outer surfaces of the diversion baffle 7 are both arc-shaped. The width of the diversion baffle 7 increases from top to bottom. First, the positioning connecting plate 3 on the lower surface of the protective shield plate 2 is snapped into the positioning mounting groove 4 of the supporting foundation plate 1. The fixing is completed by bolts using the opening on the surface of the positioning connecting plate 3 and the threaded hole on the bottom surface of the positioning mounting groove 4. Then, the inflatable airbag body 5 is inflated and expands, supporting the protective shield plate 2 upwards to reach the preset water blocking height, thus preparing the structure for subsequent water blocking and overflow.

[0031] A positioning and mounting groove 4 is provided on the upper surface of the supporting foundation plate 1. An airbag body 5 is fixedly connected to the upper surface of the supporting foundation plate 1. A diversion mounting plate 6 is provided on the outer surface of one end of the protective shield plate 2. A diversion baffle 7 is fixedly connected to the side surface of the diversion mounting plate 6. A buffer pad 8 is fixedly connected to the lower end of the diversion baffle 7. The upper surface of the buffer pad 8 is arc-shaped. The diversion groove 9 is strip-shaped, and the width of the diversion groove 9 increases from top to bottom. The buffer block 10 is semi-cylindrical. As the radius of the buffer block 10 increases from top to bottom, when the dam is in an overflow state, the water flows out from the upper end of the protective shield plate 2, first contacting the diversion mounting plate 6 fixed to one end of the protective shield plate 2 by bolts, and then flowing to the diversion baffle 7 connected to it. Since the inner and outer surfaces of the diversion baffle 7 are arc-shaped and the width increases from top to bottom, the water flow is initially guided and dispersed when flowing along the arc surface to avoid direct concentrated impact. At the same time, the dispersed water flow enters the diversion slot 9 on the surface of the diversion baffle 7.

[0032] The surface of the diversion baffle 7 has a diversion groove 9, and the inner wall of the diversion groove 9 is fixedly connected to a buffer block 10. The surface of the buffer pad 8 has two installation grooves 11. The guide limiting mechanism includes a limiting connecting block 12, which is set on the inner wall of the installation groove 11. The lower end of the limiting connecting block 12 is provided with a support roller 13. The surface of the support base plate 1 has two limiting slide grooves 14, and the inner wall of the limiting slide groove 14 is provided with two auxiliary slide rails 15. The side surface of the limiting connecting block 12 is fixedly connected with two auxiliary sliders 16. The water flow entering the diversion groove 9 is further layered and guided because the groove width increases from top to bottom. At the same time, the semi-cylindrical buffer block 10 in the groove forms a secondary blocking and buffering effect on the water flow, weakening the water flow energy. Then the water flow flows to the buffer pad 8 at the lower end of the diversion baffle 7. The upper surface of the arc-shaped pad 8 guides the water flow to transition smoothly again, completely reducing the water flow impact force and reducing noise generation.

[0033] A guide limiting mechanism is provided between the mounting slot 11 and the supporting foundation plate 1. The upper end of the limiting connecting block 12 is arc-shaped and is rotatably connected to the mounting slot 11. The limiting connecting block 12 is rotatably connected to the supporting roller 13, and the supporting roller 13 is in contact with the bottom surface of the limiting slide groove 14. The vertical cross-section of the limiting slide groove 14 and the auxiliary slide rail 15 is T-shaped. Two auxiliary sliders 16 are symmetrically arranged and are slidably connected to the auxiliary slide rail 15. During the water flow impact, the pressure on the buffer pad 8 is transmitted to the limiting connecting block 12 through the mounting slot 11. The supporting roller 13 at the lower end of the limiting connecting block 12 rolls along the limiting slide groove 14 of the supporting foundation plate 1, while its side surface... The auxiliary slider 16 on the surface slides along the auxiliary slide rail 15 on the inner wall of the limiting slide groove 14, driving the buffer pad 8 to flexibly adjust its position, ensuring that it always maintains a stable flow distribution state under different water flow intensities, and avoiding structural displacement that affects the noise reduction effect. When it is necessary to discharge floodwater or retract the dam body, the airbag body 5 is vented, and the protective shield 2 is gradually lowered as the airbag contracts. The buffer pad 8 drives the limiting connecting block 12 to move synchronously through the installation slot 11. The support roller 13 at the lower end of the limiting connecting block 12 rolls along the limiting slide groove 14 of the support foundation plate 1, and the auxiliary slider 16 on the side surface slides along the auxiliary slide rail 15. Under the limiting action of the T-shaped cross-section structure, the protective shield 2 is ensured to slide and unfold along a stable trajectory, avoiding displacement and jamming, and realizing the rapid and safe retraction and deployment of the dam body.

[0034] Working principle: When using this air-supported shield dam for noise reduction and diversion, the positioning connecting plate 3 is first engaged with the positioning mounting groove 4 and fixed with bolts. Combined with the inflation support of the airbag body 5, the positioning and water blocking preparation of the protective shield plate 2 are completed. During overflow, the water flow is guided to the arc-shaped diversion baffle 7 through the diversion slot 9 and the buffer block 10 to achieve layered buffering. The impact is further weakened by the arc-shaped buffer pad 8 to reduce noise. When the protective shield plate 2 needs to be lowered, the airbag body 5 deflates, and the guide limiting mechanism drives the buffer pad 8 and the protective shield plate 2 to slide and unfold along a stable trajectory. Finally, the "water blocking and noise reduction - safe deployment and retraction" full-condition adaptability function is realized, which increases the overall practicality.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A diversion and noise reduction air shield dam, comprising a supporting foundation base plate (1), the upper surface of which is provided with a protective shield plate (2), characterized in that: The lower surface of the protective shield plate (2) is fixedly connected to a positioning connecting plate (3), the upper surface of the supporting base plate (1) is provided with a positioning mounting groove (4), the upper surface of the supporting base plate (1) is fixedly connected to an airbag body (5), one end of the outer surface of the protective shield plate (2) is provided with a diversion mounting plate (6), the side surface of the diversion mounting plate (6) is fixedly connected to a diversion baffle (7), the lower end of the diversion baffle (7) is fixedly connected to a buffer pad plate (8), the surface of the diversion baffle (7) is provided with a diversion slot (9), the inner wall of the diversion slot (9) is fixedly connected to a buffer block (10), the surface of the buffer pad plate (8) is provided with two installation slots (11), and a guide limiting mechanism is provided between the installation slot (11) and the supporting base plate (1).

2. The air-shield dam for noise reduction and flow diversion according to claim 1, characterized in that: The positioning connecting plate (3) has an opening on its surface, and the positioning mounting groove (4) has a threaded hole on its bottom surface. The positioning mounting groove (4) and the positioning connecting plate (3) are engaged.

3. The air-shield dam for noise reduction and flow diversion according to claim 1, characterized in that: The diversion mounting plate (6) is fixedly connected to the lower surface of one end of the protective shield plate (2) by bolts. The inner and outer surfaces of the diversion baffle (7) are both arc-shaped, and the width of the diversion baffle (7) increases from top to bottom.

4. The air-shield dam for noise reduction and flow diversion according to claim 1, characterized in that: The upper surface of the buffer pad (8) is arc-shaped, the diversion slot (9) is strip-shaped, and the width of the diversion slot (9) increases from top to bottom. The buffer block (10) is semi-cylindrical, and the radius of the buffer block (10) increases from top to bottom.

5. The air-shield dam for noise reduction and flow diversion according to claim 1, characterized in that: The guide limiting mechanism includes a limiting connecting block (12), which is set on the inner wall of the mounting slot (11). The lower end of the limiting connecting block (12) is provided with a support roller (13). The surface of the supporting base plate (1) is provided with two limiting slide grooves (14). The inner wall of the limiting slide groove (14) is provided with two auxiliary slide rails (15). The side surface of the limiting connecting block (12) is fixedly connected with two auxiliary sliders (16).

6. The air-shield dam for noise reduction and flow diversion according to claim 5, characterized in that: The upper end of the limiting connecting block (12) is arc-shaped, and the upper end of the limiting connecting block (12) is rotatably connected with the mounting slot (11). The limiting connecting block (12) is rotatably connected with the support roller (13), and the support roller (13) is in contact with the bottom surface of the limiting slide groove (14).

7. The air-shield dam for noise reduction and flow diversion according to claim 5, characterized in that: The vertical cross-section of the limiting slide groove (14) and the auxiliary slide rail (15) is T-shaped. The two auxiliary sliders (16) are symmetrically arranged, and the auxiliary sliders (16) and the auxiliary slide rail (15) form a sliding connection.

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