Sealing structure for large hole of outer cylinder of chimney

Abstract

The utility model discloses a chimney outer cylinder large hole sealing structure which comprises an outer cylinder, an outer cylinder hole is formed in the side surface of the outer cylinder, a smoke side pipe is arranged in the outer cylinder hole, one end of the smoke side pipe is fixedly connected with an inner cylinder, the inner cylinder is located in the outer cylinder, and the side surface of the outer cylinder is fixedly connected with a plurality of fixing plates. A steel plate is fixedly connected to the side surface of the fixing plate, a nut is fixedly connected to the side surface, close to the outer cylinder, of the steel plate, a hole closing plate is arranged on the side surface, away from the outer cylinder, of the steel plate, a screw is arranged on the side surface of the hole closing plate, and the screw penetrates through the hole closing plate and is in threaded connection with the nut. On-site bolt connection of the chimney opening plate is achieved, on-site welding is avoided, the installation difficulty of bolts is reduced, the installation efficiency is improved, and time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of chimney outer tube large hole closing structure, in particular to a chimney outer tube large hole closing structure. Background Art

[0002] The existing large openings of the outer tube of the chimney are often sealed by on-site welding of steel plates, unsealed, sealed by outer slot boxes, etc., and these methods are difficult to install with bolts on site, or even impossible to install. For example, a Chinese patent discloses a "smoke detection tube for a steel chimney with an inner tube", and its application number is: "201120074053.X". Holes are respectively opened in the inner tube wall and the outer tube wall of the steel chimney, and the detection tube is welded to the inner tube wall of the steel chimney, and the diameter of the detection tube matches the diameter of the hole in the inner tube wall of the steel chimney; the diameter of the hole in the outer tube wall of the steel chimney is larger than the diameter of the detection tube, and the detection tube is connected to the hole in the outer tube wall of the steel chimney through a reinforcement ring, and a mask is provided on the upper end of the reinforcement ring. Through the above structure, it is easy to detect, but the closed structure of the large opening of the outer tube of the chimney is difficult to install with bolts on site, or even impossible to install, and has limitations in use. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a large hole closing structure for a chimney outer tube. By providing a fixing plate, a steel plate, a nut fixedly connected to the side surface of the steel plate, a hole closing plate and a screw rod, on-site bolt connection of the chimney hole plate is achieved, thereby avoiding on-site welding, reducing the difficulty of bolt installation, improving installation efficiency and saving time.

[0004] The utility model also provides a large hole closing structure of the chimney outer tube, comprising: an outer tube, an outer tube hole is formed on the side surface of the outer tube, a smoke side pipe is arranged in the outer tube hole, one end of the smoke side pipe is fixedly connected to an inner tube, the inner tube is located in the outer tube, a plurality of fixing plates are fixedly connected to the side surface of the outer tube, a steel plate is fixedly connected to the side surface of the fixing plate, a nut is fixedly connected to the side surface of the steel plate close to the outer tube, a hole closing plate is arranged on the side surface of the steel plate away from the outer tube, a screw is arranged on the side surface of the hole closing plate, the screw penetrates the hole closing plate and is threadedly connected to the nut. Through the above structure, on-site bolt connection of the chimney hole plate is realized, on-site welding is avoided, the difficulty of bolt installation is reduced, the installation efficiency is improved, and time is saved.

[0005] According to the chimney outer tube large hole closing structure described in the utility model, the inner surface of the outer tube is fixedly connected with a fixing column, and the other end of the fixing column is fixedly connected to the outer surface of the inner tube. Through the above structure, the inner tube and the outer tube can be fixed.

[0006] According to the chimney outer tube large hole closing structure described in the utility model, a cover plate is fixedly connected to the upper surface of the inner tube. The cover plate is the same size as the outer tube and is fixedly connected to the upper surface of the outer tube. Through the above structure, the inner tube is covered and protected.

[0007] According to the chimney outer tube large hole closing structure described in the utility model, the side surface of the fixing plate is fixedly connected with a connecting column, and the connecting column is fixedly connected with a sleeve at one end away from the fixing plate. The sleeve is fixed by the above structure.

[0008] According to the chimney outer tube large hole closing structure described in the utility model, the side surface of the fixing plate is fixedly connected with bolts, and nuts are threadedly connected on the bolts. The nuts are located on the inner surface of the sleeve. Through the above structure, it is convenient to fix the sleeve.

[0009] According to the chimney outer tube large hole closing structure described in the utility model, a fixing block is arranged on the side surface of the outer tube, and an expansion bolt is arranged on the side surface of the fixing block, and the other end of the expansion bolt is located in the outer tube. Through the above structure, it is convenient to fix the fixing block.

[0010] Beneficial Effects

[0011] Compared with the prior art, the large hole closing structure of the chimney outer tube realizes on-site bolt connection of the chimney hole plate by providing a fixing plate, a steel plate, a nut fixedly connected to the side surface of the steel plate, a hole closing plate, and a screw, thereby avoiding on-site welding, reducing the difficulty of bolt installation, improving installation efficiency, and saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0013] Figure 1 This is the overall structural diagram of the large opening closed structure of the chimney outer tube of the utility model;

[0014] Figure 2 This is a bottom view of the chimney outer tube large hole closed structure of the utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the large opening closed structure of the chimney outer tube of the utility model;

[0016] Figure 4 The utility model is a chimney outer tube large hole closing structure Figure 3 Enlarged structural diagram at point C in the middle.

[0017] Legend:

[0018] 1. Outer tube; 2. Cover plate; 3. Smoke side pipe; 4. Opening closing plate; 5. Screw; 6. Expansion bolt; 7. Fixing block; 8. Inner tube; 9. Fixing column; 10. Nut; 11. Bolt; 12. Nut; 13. Sleeve; 14. Fixing plate; 15. Steel plate; 16. Connecting column. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] Reference Figure 1-4 The utility model embodiment of the chimney outer tube large hole closing structure comprises: an outer tube 1, the outer tube 1 side surface is provided with an outer tube hole, a smoke side pipe 3 is arranged in the outer tube hole, which is convenient for exhausting smoke, one end of the smoke side pipe 3 is fixedly connected with an inner tube 8, the inner tube 8 is located in the outer tube 1, and the inner tube 8 is protected, a plurality of fixing plates 14 are fixedly connected to the side surface of the outer tube 1, a steel plate 15 is fixedly connected to the side surface of the fixing plate 14, a nut 10 is fixedly connected to the side surface of the steel plate 15 close to the outer tube 1, and a hole closing plate 4 is arranged on the side surface of the fixing nut 10 and the steel plate 15 away from the outer tube 1, which is convenient for closing the hole, a screw 5 is arranged on the side surface of the hole closing plate 4, the screw 5 penetrates the hole closing plate 4 and is threadedly connected with the nut 10, which is convenient for fixing the hole closing plate 4.

[0021] A fixing column 9 is fixedly connected to the inner surface of the outer cylinder 1, and the other end of the fixing column 9 is fixedly connected to the outer surface of the inner cylinder 8 to fix the outer cylinder 1 and the inner cylinder 8. A cover plate 2 is fixedly connected to the upper surface of the inner cylinder 8. The cover plate 2 is the same size as the outer cylinder 1 and is fixedly connected to the upper surface of the outer cylinder 1, which is convenient for protecting the inner cylinder to prevent dust and rainwater from entering. A connecting column 16 is fixedly connected to the side surface of the fixing plate 14, and a sleeve 13 is fixedly connected to the end of the connecting column 16 away from the fixing plate 14 to facilitate connecting the sleeve 13. A bolt 11 is fixedly connected to the side surface of the fixing plate 14, and a nut 12 is threadedly connected to the bolt 11. The nut 12 is located on the inner surface of the sleeve 13 to fix the sleeve 13. A fixing block 7 is provided on the side surface of the outer cylinder 1, and an expansion bolt 6 is provided on the side surface of the fixing block 7. The other end of the expansion bolt 6 is located in the outer cylinder 1 to fix the fixing block 7.

[0022] Working principle: When manufactured in the factory, the hole closing plate 4 is preassembled, and the nut 10 is welded to the chimney outer tube 1. During installation, the sleeve is fixed by the bolt 11 and the nut 12, and the fixing block 7 is fixed by the expansion bolt 6. The screw 11 is installed on site to pass through the hole closing plate 4 and fix it with the nut 10.

[0023] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The chimney outer tube large hole closed structure is characterized by: include: An outer cylinder (1) is provided with an outer cylinder hole on the side surface of the outer cylinder (1), a smoke side pipe (3) is arranged in the outer cylinder hole, one end of the smoke side pipe (3) is fixedly connected to an inner cylinder (8), the inner cylinder (8) is located in the outer cylinder (1), a plurality of fixing plates (14) are fixedly connected to the side surface of the outer cylinder (1), a steel plate (15) is fixedly connected to the side surface of the fixing plate (14), a nut (10) is fixedly connected to the side surface of the steel plate (15) close to the outer cylinder (1), a hole closing plate (4) is arranged on the side surface of the steel plate (15) away from the outer cylinder (1), a screw (5) is arranged on the side surface of the hole closing plate (4), the screw (5) passes through the hole closing plate (4) and is threadedly connected to the nut (10).

2. The chimney outer tube large hole sealing structure according to claim 1, characterized in that: A fixing column (9) is fixedly connected to the inner surface of the outer cylinder (1), and the other end of the fixing column (9) is fixedly connected to the outer surface of the inner cylinder (8).

3. The chimney outer tube large hole sealing structure according to claim 1, characterized in that: A cover plate (2) is fixedly connected to the upper surface of the inner cylinder (8); the cover plate (2) is the same size as the outer cylinder (1) and is fixedly connected to the upper surface of the outer cylinder (1).

4. The chimney outer tube large hole sealing structure according to claim 1, characterized in that: A connecting column (16) is fixedly connected to the side surface of the fixing plate (14), and a sleeve (13) is fixedly connected to one end of the connecting column (16) away from the fixing plate (14).

5. The chimney outer tube large hole sealing structure according to claim 1, characterized in that: A bolt (11) is fixedly connected to the side surface of the fixing plate (14), a nut (12) is threadedly connected to the bolt (11), and the nut (12) is located on the inner surface of the sleeve (13).

6. The chimney outer tube large hole sealing structure according to claim 1, characterized in that: A fixing block (7) is arranged on the side surface of the outer cylinder (1), and an expansion bolt (6) is arranged on the side surface of the fixing block (7), wherein the other end of the expansion bolt (6) is located inside the outer cylinder (1).

Images