An upper air inlet duct sealing structure

Abstract

The utility model relates to the technical field of combustor discloses an upper air inlet pipeline sealing structure, including valve seat and combustor assembly, be provided with the gas pipe of intercommunication in valve body on the valve seat, the combustor assembly includes the base, the base one side is provided with the air inlet pipe, is installed the combustor on the base, the gas pipe sealed plug -in and intercommunication one end of air inlet pipe, the gas pipe and air inlet pipe are connected through the detachable screwing spare, this upper air inlet pipeline sealing structure inserts the air inlet pipe on the base through the gas pipe on the valve seat and intercommunication, makes between the gas pipe and air inlet pipe seal, then through detachable screwing spare will the gas pipe and air inlet pipe fasten, make the sealing between the gas pipe and air inlet pipe higher, need not to sample traditional double -end screw mouth and carry out the thread connection intercommunication of both ends, greatly reduce the installation requirement, and can prevent the situation of the fracture of the joint, improve security.

Description

Technical Field

[0001] This utility model relates to the technical field of burners, and more specifically, to a sealing structure for an upper air inlet duct. Background Technology

[0002] In existing top-intake stoves, the air intake is located above the stove, and a gas pipe is usually installed on one side of the top-intake base. Unlike bottom-intake stoves, which have an air damper, the gas pipe is usually connected to the valve seat inside the stove using a double-ended metal threaded pipe. However, in this connection structure, if the torque exceeds the range during installation, the threaded ends of the double-ended threaded pipe are prone to breakage, leading to gas leakage. However, if it is not tightened properly, it is also easy to cause gas leakage due to insufficient sealing. Therefore, there are certain installation requirements. Utility Model Content

[0003] In order to overcome the defects of the existing technology, this utility model provides an upper air inlet duct sealing structure to solve the problems in the existing technology.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an upper air inlet pipe sealing structure, including a valve seat and a burner assembly. The valve seat is provided with a gas supply pipe connected to the valve body. The burner assembly includes a base, an air inlet pipe is provided on one side of the base, and a burner is installed on the base. The gas supply pipe is sealed and connected to one end of the air inlet pipe. The gas supply pipe and the air inlet pipe are connected by a detachable tightening member.

[0005] In the above-mentioned upper air inlet duct sealing structure, there are two air supply pipes and two air inlet pipes. A first connecting block is provided between the two air supply pipes, and a second connecting block is provided between the two air inlet pipes. The two air supply pipes are correspondingly and sealedly inserted into the air inlet pipes, so that the first connecting block abuts against the second connecting block. The tightening member is snapped onto the first connecting block and the second connecting block.

[0006] In the above-mentioned sealing structure of the upper air inlet duct, the end of the air supply pipe near the air inlet pipe is provided with a plug-in end, the outer diameter of the plug-in end is smaller than the outer diameter of the air supply pipe, the end of the air inlet pipe near the air supply pipe is provided with a sealing end, the sealing end is provided with a plug-in interface, the plug-in end is inserted into the plug-in interface, the plug-in interface is provided with a contact surface, and a sealing ring is provided between the plug-in end and the contact surface.

[0007] In the above-mentioned sealing structure for an upper air inlet duct, at least two first slots are provided on the side of the first connecting block away from the second connecting block, and at least two second slots are provided on the side of the second connecting block away from the first connecting block. The first slots and the second slots can be combined to form a retaining ring, and the tightening member is engaged in the retaining ring.

[0008] In the aforementioned sealing structure for an upper air inlet duct, the tightening component is a hose clamp.

[0009] In the above-mentioned sealing structure for an upper air inlet duct, the first connecting block has a first plane on the side facing the second connecting block, and at least two limiting ribs are provided on the first plane. The second connecting block has a second plane on the side facing the first connecting block, and at least two of the limiting ribs abut against the second plane, so that the sealing ring abuts against the plug end and the abutment surface respectively.

[0010] The beneficial effects of this utility model are that by inserting the air supply pipe on the valve seat into and connecting it to the air inlet pipe on the base, a seal is formed between the air supply pipe and the air inlet pipe. Then, the air supply pipe and the air inlet pipe are fastened by a detachable tightening part, which makes the sealing between the air supply pipe and the air inlet pipe higher. It eliminates the need to use the traditional double-ended screw to connect the two ends by threading, greatly reducing the installation requirements and preventing the connection from breaking, thus improving safety. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the sealing structure of the upper air inlet duct of this utility model.

[0012] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0013] Figure 3 This is a three-dimensional structural diagram of the valve seat of the utility model.

[0014] Figure 4 This is a three-dimensional structural diagram of the burner assembly of this utility model.

[0015] In the figure: valve seat 1, burner assembly 2, base 3, burner 4, gas supply pipe 5, valve body 6, plug end 7, air inlet pipe 8, sealing end 9, first connecting block 10, first slot 11, second connecting block 12, second slot 13, tightening part 14, first plane 15, limiting rib 16, plug interface 17, abutment surface 18, second plane 19. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] Combination Figures 1 to 4The above-display air inlet duct sealing structure includes a valve seat 1 and a burner assembly 2. The valve seat 1 is provided with a gas supply pipe 5 connected to a valve body 6. The burner assembly 2 includes a base 3, an air inlet pipe 8 is provided on one side of the base 3, and a burner 4 is mounted on the base 3. The gas supply pipe 5 is sealed and connected to one end of the air inlet pipe 8. The gas supply pipe 5 and the air inlet pipe 8 are connected by a detachable tightening member 14. In this embodiment, the tightening member 14 is a hose clamp. In this embodiment, by inserting the gas supply pipe 5 on the valve seat 1 and connecting it to the air inlet pipe 8 on the base 3, a seal is formed between the gas supply pipe 5 and the air inlet pipe 8. Then, the gas supply pipe 5 and the air inlet pipe 8 are tightened by the detachable tightening member 14, resulting in a higher sealing performance between the gas supply pipe 5 and the air inlet pipe 8. It eliminates the need for traditional double-ended threaded connections, greatly reducing installation requirements and preventing breakage at the connection point, thus improving safety.

[0018] In this embodiment, two air supply pipes 5 and two air intake pipes 8 are provided. A first connecting block 10 is provided between the two air supply pipes 5 and a second connecting block 12 is provided between the two air intake pipes 8. The two air supply pipes 5 are correspondingly and sealedly inserted into the air intake pipes 8, so that the first connecting block 10 abuts against the second connecting block 12. The hose clamp is snapped onto the first connecting block 10 and the second connecting block 12. Thus, the first connecting block 10 and the second connecting block 12 can be tightened by the hose clamp, so that the air supply pipe 5 is tightly inserted into the air intake pipe 8, improving the sealing performance, and making assembly more convenient and with lower assembly requirements.

[0019] Specifically, in this embodiment, the end of the air supply pipe 5 near the air inlet pipe 8 is provided with a plug-in end 7. The outer diameter of the plug-in end 7 is smaller than the outer diameter of the air supply pipe 5. The end of the air inlet pipe 8 near the air supply pipe 5 is provided with a sealing end 9. The sealing end 9 has a plug-in interface 17. The plug-in end 7 is inserted into the plug-in interface 17. The plug-in interface 17 has an abutment surface 18. A sealing ring is provided between the plug-in end 7 and the abutment surface 18. The outer diameter of the plug-in end 7 is the same as the inner diameter of the plug-in interface 17, making the structure more compact. Moreover, the end face of the plug-in end 7 corresponds to the abutment surface 18. After the hose clamp is tightened, the sealing ring can be pressed more tightly, resulting in better sealing. Unlike traditional methods, there is no need for threaded installation at the connection point, which prevents the pipe connection from breaking.

[0020] In this embodiment, the first connecting block 10 is provided with at least two first slots 11 on the side away from the second connecting block 12, and the second connecting block 12 is provided with at least two second slots 13 on the side away from the first connecting block 10. The first slots 11 and the second slots 13 can be combined to form a retaining ring, and the hose clamp is engaged in the retaining ring. This allows the hose clamp to be better positioned in the retaining ring, and after the hose clamp is rotated, it makes the first connecting block 10 and the second connecting block 12 more stable and prevents loosening.

[0021] In this embodiment, the first connecting block 10 has a first plane 15 on the side facing the second connecting block 12, and two limiting ribs 16 are provided on the first plane 15. The second connecting block 12 has a second plane 19 on the side facing the first connecting block 10. At least two limiting ribs 16 abut against the second plane 19, so that the sealing ring abuts against the insertion end 7 and the abutment surface 18 respectively. After the hose clamp is tightened, the sealing ring is in a tight state until the two limiting ribs 16 abut against the second plane 19, which prevents further compression of the sealing ring and affects the service life of the sealing ring.

[0022] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A sealing structure for an upper air inlet duct, comprising a valve seat (1) and a burner assembly (2), characterized in that, The valve seat (1) is provided with a gas supply pipe (5) connected to the valve body (6). The burner assembly (2) includes a base (3). An air inlet pipe (8) is provided on one side of the base (3). A burner (4) is installed on the base (3). The gas supply pipe (5) is sealed and connected to one end of the air inlet pipe (8). The gas supply pipe (5) and the air inlet pipe (8) are connected by a detachable screw fastener (14).

2. The sealing structure for an upper air inlet duct according to claim 1, characterized in that, Two gas supply pipes (5) are provided, two air inlet pipes (8) are provided, a first connecting block (10) is provided between the two gas supply pipes (5), and a second connecting block (12) is provided between the two air inlet pipes (8). The two gas supply pipes (5) are correspondingly and sealed and inserted into the air inlet pipes (8), so that the first connecting block (10) abuts against the second connecting block (12). The tightening member (14) is snapped onto the first connecting block (10) and the second connecting block (12).

3. The sealing structure for an upper air inlet duct according to claim 2, characterized in that, The gas supply pipe (5) is provided with a plug-in end (7) at one end near the gas inlet pipe (8). The outer diameter of the plug-in end (7) is smaller than the outer diameter of the gas supply pipe (5). The gas inlet pipe (8) is provided with a sealing end (9) at one end near the gas supply pipe (5). The sealing end (9) is provided with a plug-in interface (17). The plug-in end (7) is inserted into the plug-in interface (17). The plug-in interface (17) is provided with a contact surface (18). A sealing ring is provided between the plug-in end (7) and the contact surface (18).

4. The sealing structure for an upper air inlet duct according to claim 3, characterized in that, The first connecting block (10) has at least two first slots (11) on the side away from the second connecting block (12), and the second connecting block (12) has at least two second slots (13) on the side away from the first connecting block (10). The first slots (11) and the second slots (13) can be combined to form a retaining ring, and the tightening member (14) is engaged in the retaining ring.

5. A sealing structure for an upper air inlet duct according to claim 1 or 4, characterized in that, The tightening component (14) is a hose clamp.

6. The sealing structure for an upper air inlet duct according to claim 4, characterized in that, The first connecting block (10) has a first plane (15) on the side facing the second connecting block (12), and at least two limiting ribs (16) are provided on the first plane (15). The second connecting block (12) has a second plane (19) on the side facing the first connecting block (10). At least two of the limiting ribs (16) abut against the second plane (19), so that the sealing ring abuts against the plug end (7) and the abutment surface (18) respectively.

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