Gas-collecting hood

Abstract

The utility model discloses a gas-collecting hood, which relates to the technical field of waste gas collection and comprises a plurality of mutually spliced arc-shaped plates detachably connected onto a support beam. The bottom of the arc-shaped plate is provided with a limiting groove where the supporting beam is clamped, and the supporting beam is clamped into the limiting groove. The two sides of each arc-shaped plate are correspondingly provided with lap joint edges in the length direction of the arc-shaped plate, the lap joint edge on one side is higher than the lap joint edge on the other side by one plate thickness, and the lap joint edges of the adjacent arc-shaped plates are in lap joint in a sealed mode. The supporting beams are clamped into the limiting grooves, so that the supporting beams support the arc-shaped plate from the bottom, and compared with the prior art, the situations that installation bolts are exposed to the outer side and are prone to rusting, and meanwhile water leakage or air leakage is prone to occurring at the positions of installation holes are avoided; the adjacent arc-shaped plates are in lap joint directly, and compared with the prior art, the number of splicing seams is reduced, and the risk of water leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas collection, in particular to a gas collecting hood. Background Art

[0002] A gas collecting hood is installed on the top of the sewage pool, and the gas collecting hood is generally made of many pieces of curved glass fiber reinforced plastic plates sealed and spliced ​​together. The existing splicing methods are as follows: Figure 1 and Figure 2 As shown, the two arc plates 1 are respectively located on both sides of the support beam 2, and upwardly raised flanges 11 are provided on both sides of the arc plate 1. The flanges 11 are fitted to the sides of the support beam 2, and mounting holes 110 are evenly arranged in the length direction of the flanges 11. The flanges 11 are fixed to the support beam 2 by installing bolts 3, thereby realizing the splicing of the arc plates 1; in order to avoid water leakage and air leakage, the fitting edges of the flanges 11 and the support beam 2 are sealed by sealant.

[0003] The above-mentioned splicing method has the following problems: 1. The mounting bolts 3 are exposed to the outside and are prone to rust, and water leakage or air leakage is prone to occur at the mounting hole 110; 2. After the arc-shaped plates 1 on both sides of the support beam 2 are fixed on the support beam 2, there are two splicing seams with many gaps, which are prone to water leakage. Utility Model Content

[0004] The purpose of the utility model is to provide an air collecting hood, which supports the support beam at the bottom of the arc plate and adopts a sealed overlap method between adjacent arc plates to achieve splicing of the arc plates, thereby avoiding the installation bolts being exposed to the outside and easily rusting, and the installation holes being prone to water leakage or air leakage; at the same time, the number of splicing seams is reduced, reducing the risk of water leakage.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an air collecting hood, including a plurality of arc-shaped plates spliced ​​with each other, and the arc-shaped plates are detachably connected to a support beam; a limiting groove for the support beam to be inserted into is provided at the bottom of the arc-shaped plate, and the support beam is inserted into the limiting groove; overlapping edges are correspondingly provided on both sides of the arc-shaped plate along its length direction, wherein the overlapping edge on one side is higher than the overlapping edge on the other side by one plate thickness, and the overlapping edges of adjacent arc-shaped plates are sealed and overlapped.

[0006] After adopting the above structure, the support beam is inserted into the limit groove to support the curved plate from the bottom. Compared with the prior art, it avoids the installation bolts being exposed to the outside, which are easy to rust, and the installation holes are prone to water leakage or air leakage. The adjacent curved plates are directly overlapped, which reduces the number of joints and the risk of water leakage compared with the prior art.

[0007] In order to increase the connection strength between the limiting groove and the support beam, increase the force on the arc plate, and reduce the vibration of the arc plate caused by external factors, the limiting groove and the support beam are bonded.

[0008] In order to facilitate the fixing of the limiting groove and the support beam, the limiting groove and the support beam are fixed by installing bolts.

[0009] In order to facilitate the distinction of the installation sequence and improve the installation efficiency, the lengths of the overlapping edges on both sides of the curved plate are inconsistent.

[0010] In order to improve the strength of the overlapping edges and improve their waterproof performance, upwardly protruding buckle grooves are provided on the overlapping edges on both sides of the arc-shaped plate, and the two buckle grooves are buckled with each other.

[0011] In order to achieve rapid sealing between the overlapping edges of adjacent arc-shaped plates, the overlapping seams of the overlapping edges of adjacent arc-shaped plates are filled with sealant.

[0012] Another sealing method between the overlapping edges of adjacent curved plates is that the overlapping seams of the overlapping edges of adjacent curved plates are filled with asphalt.

[0013] In order to reduce the force between the overlapping edges of adjacent arc-shaped plates, the limit groove is arranged at one side of the bottom of the arc-shaped plate close to the short overlapping edge by utilizing the lever principle.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] The purpose of the utility model is to provide an air collecting hood which solves the problem in the prior art that when adjacent arc plates are connected at the overlapping edges, the mounting bolts are exposed to the outside and are prone to rust, and at the same time, water leakage or air leakage is prone to occur at the mounting holes; after the arc plates on both sides of the support beam are fixed on the support beam, there are two splicing seams with many gaps, which are prone to water leakage; the utility model supports the support beam at the bottom of the arc plate and adopts a sealed overlap method between adjacent arc plates to achieve the splicing of the arc plates, thereby avoiding the mounting bolts being exposed to the outside and being prone to rust, and at the same time, water leakage or air leakage is prone to occur at the mounting holes; at the same time, the number of splicing seams is reduced, reducing the risk of water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a gas collecting hood in the prior art;

[0017] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0018] Figure 3 It is a structural schematic diagram of a gas collecting hood of the utility model;

[0019] Figure 4yes Figure 3 Cross-sectional view of the middle gas collecting hood;

[0020] Figure 5 yes Figure 4 A partial enlarged view of B in the middle;

[0021] Figure 6 yes Figure 4 A partial enlarged view of middle C;

[0022] Figure 7 It is a schematic diagram of the buckling structure of the long overlapping edge and the short overlapping edge in the third embodiment.

[0023] In the figure, 1, curved plate, 11, flange, 110, mounting hole, 12, limiting groove, 13, overlapping edge, 131, long overlapping edge, 132, short overlapping edge, 133, buckle groove, 2, support beam, 3, mounting bolts. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] The orientations mentioned in this specification are based on the orientations of the gas collecting hood of the utility model during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.

[0026] Embodiment 1:

[0027] like Figure 3 , Figure 4 and Figure 5 As shown together, a gas collecting hood includes a plurality of arc-shaped plates 1 spliced ​​to each other, and the arc-shaped plates 1 are detachably connected to the support beam 2. The detachable connection method of this embodiment is: a limiting groove 12 for the support beam 2 to be inserted is provided at the bottom of the arc-shaped plate 1, and the support beam 2 is inserted into the limiting groove 12; thereby, the support beam 2 is supported at the bottom of the arc-shaped plate 1.

[0028] like Figure 6 As shown, overlapping edges 13 are correspondingly arranged on both sides of the arc-shaped plate 1 along its length direction, wherein the overlapping edge 13 on one side is higher than the overlapping edge 13 on the other side by one plate thickness. The overlapping edges 13 of adjacent arc-shaped plates 1 are sealed and overlapped.

[0029] In this embodiment, the overlapping seams of the overlapping edges 13 of adjacent curved plates 1 are filled with sealant. In another embodiment, the overlapping seams of the overlapping edges 13 of adjacent curved plates 1 are filled with asphalt. Other sealing methods can also be used in actual applications, and this embodiment does not limit this.

[0030] The limiting groove 12 is arranged at one side of the bottom of the arc plate 1 near the short overlapped edge 13. During installation, the higher overlapped edge 13 of the adjacent arc plate 1 is overlapped on the shorter overlapped edge 13 of the other arc plate 1, and the support beam 2 is used as a fulcrum. By using the lever principle, the force between the overlapped edges 13 of the adjacent arc plates 1 is reduced.

[0031] Embodiment 2:

[0032] In order to facilitate the distinction of the arc plate 1 and the installation sequence, the lengths of the overlapping edges 13 on both sides of the arc plate 1 are inconsistent, that is, a long overlapping edge 131 with a longer length and a short overlapping edge 132 with a shorter length are respectively provided on both sides of the arc plate 1.

[0033] In order to increase the supporting strength of the overlapping edge, the height of the long overlapping edge 131 is lower than the height of the short overlapping edge 132 by one plate thickness, so that the short overlapping edge 132 is overlapped on the long overlapping edge 131 .

[0034] Embodiment three:

[0035] In order to increase the connection strength between the support beam 2 and the arc plate 1 and reduce the shaking of the arc plate 1 caused by strong wind or other factors, the limiting groove 12 and the support beam 2 are fixedly connected. The fixed connection method of this embodiment is fixed by bonding.

[0036] In another embodiment, the limiting groove 12 is fixed to the support beam 2 by means of mounting bolts 3, through holes are evenly arranged on the limiting groove 12 along its length direction, and mounting holes are arranged on the support beam 2 corresponding to the through holes, and mounting bolts 3 are installed in the through holes and the mounting holes, so that the limiting groove 12 and the support beam 2 are fixed by means of mounting bolts 3. In this installation method of mounting bolts 3, the mounting holes and mounting bolts 3 are both arranged inside the arc plate 1, and are not exposed to the outside, so there is no water leakage or air leakage.

[0037] Embodiment three:

[0038] like Figure 7 As shown, in order to increase the lap strength between the lap edges 13 of adjacent arc-shaped plates 1 and improve their waterproof performance, upwardly protruding buckle grooves 133 are provided on the lap edges 13 on both sides of the arc-shaped plates 1, and the two buckle grooves 133 are interlocked to form upwardly protruding reinforcement grooves.

[0039] The purpose of the utility model is to provide an air collecting hood which solves the problem in the prior art that when adjacent arc plates are connected at the overlapping edges, the mounting bolts are exposed to the outside and are prone to rust, and at the same time, water leakage or air leakage is prone to occur at the mounting holes; after the arc plates on both sides of the support beam are fixed on the support beam, there are two splicing seams with many gaps, which are prone to water leakage; the utility model supports the support beam at the bottom of the arc plate and adopts a sealed overlap method between adjacent arc plates to achieve the splicing of the arc plates, thereby avoiding the mounting bolts being exposed to the outside and being prone to rust, and at the same time, water leakage or air leakage is prone to occur at the mounting holes; at the same time, the number of splicing seams is reduced, reducing the risk of water leakage.

[0040] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A gas collecting hood, characterized in that: It comprises a plurality of arc-shaped plates spliced ​​to each other, and the arc-shaped plates are detachably connected to the support beam; A limiting groove for the support beam to be inserted into is provided at the bottom of the arc plate, and the support beam is inserted into the limiting groove; overlapping edges are correspondingly provided on both sides of the arc plate along its length direction, wherein the overlapping edge on one side is higher than the overlapping edge on the other side by one plate thickness, and the overlapping edges of adjacent arc plates are sealed and overlapped.

2. The gas collecting hood according to claim 1, characterized in that: The limiting groove is bonded to the supporting beam.

3. The gas collecting hood according to claim 1, characterized in that: The limiting groove and the supporting beam are fixed by installing bolts.

4. The gas collecting hood according to claim 1, characterized in that: The lengths of the overlapping edges on both sides of the arc-shaped plate are inconsistent.

5. The gas collecting hood according to claim 4, characterized in that: The overlapping edges on both sides of the arc-shaped plate are provided with buckle grooves protruding upwards, and the two buckle grooves are buckled with each other.

6. The gas collecting hood according to claim 1, characterized in that: The overlapping seams of the overlapping edges of the adjacent arc-shaped plates are filled with sealant.

7. The gas collecting hood according to claim 1, characterized in that: The overlapping seams of the overlapping edges of the adjacent arc-shaped plates are filled with asphalt.

8. The gas collecting hood according to claim 1, characterized in that: The limiting groove is arranged at a side position of the bottom of the arc-shaped plate close to the short overlapping edge.

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