Air inlet pipeline for industrial hot air heating machine

Abstract

The utility model discloses an air inlet pipeline for an industrial hot air heating machine, which relates to the technical field of air inlet pipelines and comprises an air inlet pipe, a sponge ring sleeved on the outer wall of the air inlet pipe, a flange plate I and a flange plate II respectively arranged at two ends of the air inlet pipe, and semicircular clamping rings symmetrically arranged on the flange plate I and the flange plate II. An arc-shaped plate is arranged in the semicircular clamping ring in a sliding mode, an extrusion spring is arranged between the arc-shaped plate and the semicircular clamping ring, a circular hole is formed in the semicircular clamping ring, and a fixing piece is arranged in the circular hole; the flange plate I and the flange plate II are fixed by pressing the clamping rod and the clamping head of the fixing piece into the circular holes of the semicircular clamping ring, the flange plate I and the flange plate II, so that the connection of the air inlet pipe is realized, the operation is simple and convenient, and the connection working efficiency of the air inlet pipe is improved; and meanwhile, the air inlet pipe can be disassembled only by taking down the clamping rod, and rapid installation or disassembly of the air inlet pipe is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air inlet ducts, in particular to an air inlet duct for an industrial hot air heating machine. Background Art

[0002] The industrial hot air blower is composed of three parts: a blower, a heater and a control circuit. The working principle is as follows: after power is turned on, the blower blows air into the heater, allowing the air to pass evenly through the inside and outside of the spiral heating wire. The heat generated by the heating wire after power is turned on is heat exchanged with the cold air passing through, thereby increasing the air temperature at the air outlet; the K-type thermocouple at the air outlet promptly feeds back the detected air outlet temperature to the temperature controller, and the instrument monitors the actual working temperature according to the set temperature, and transmits the relevant information back to the solid-state relay to control whether the heater is working; when using the existing industrial hot air blower, an air inlet pipe is required, but the length of the air inlet pipe is limited, and the air inlet pipe needs to be connected. One connector needs to be threaded into another connector, and when connecting, the two connectors need to be aligned before they can be connected. The connection conditions are relatively strict, and any slight deviation will cause the two air inlet pipes to be unable to be connected together, affecting the working efficiency of the connection of the two air inlet pipes; therefore, an air inlet duct for an industrial hot air heater is proposed to solve the above problems. Summary of the invention

[0003] The purpose of the utility model is to solve the above problems and to provide an air inlet duct for an industrial hot air heating machine.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An air inlet duct for an industrial hot air heating machine comprises an air inlet duct, a sponge ring sleeved on the outer wall of the air inlet duct, and flange one and flange two respectively arranged at both ends of the air inlet duct, wherein flange one and flange two are symmetrically provided with semicircular clamping rings, an arc plate is slidably provided in the semicircular clamping ring, an extrusion spring is provided between the arc plate and the semicircular clamping ring, a circular hole is opened on the semicircular clamping ring, and the circular holes are flange one and flange two respectively, and a fixing piece is provided in the circular hole.

[0006] Preferably, the fixing member comprises a clamping rod arranged in the circular hole, and a plurality of clamping heads are evenly arranged on the outer wall of one end of the clamping rod.

[0007] Preferably, the clamping rod and the clamping head are both made of flexible rubber material, and the clamping head and the clamping rod are arranged obliquely.

[0008] Preferably, an annular groove cooperating with the semicircular clamping ring is symmetrically provided on the outer wall of the clamping rod.

[0009] Preferably, a rubber pad is provided on the inner wall of the semicircular collar.

[0010] Preferably, an annular rubber ring is provided on the outer wall of the second flange, and an annular sealing groove is provided on the first flange to cooperate with the annular rubber ring.

[0011] Preferably, a plurality of annular protrusions are evenly arranged on the outer wall of the annular rubber ring, and an annular groove is formed in the annular sealing groove to match the annular protrusions.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model realizes the connection of the air inlet duct by pressing the clamping rod and the clamping head of the fixing piece into the circular holes of the semicircular clamping ring, the flange plate one and the flange plate two, that is, fixing the flange plate one and the flange plate two, thereby realizing the connection of the air inlet duct. The operation is simple and convenient, and the working efficiency of the air inlet duct connection is improved. At the same time, the air inlet duct can be disassembled by only removing the clamping rod, and the air inlet duct can be quickly installed or disassembled. The coordinated use of the annular rubber ring and the annular sealing groove facilitates the improvement of the sealing between the two air inlet ducts, avoids the phenomenon of air leakage, and thus facilitates the flow of gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a front view provided according to an embodiment of the utility model is shown;

[0015] Figure 2 A schematic diagram of the structure from a side perspective provided according to an embodiment of the utility model is shown;

[0016] Figure 3 A schematic diagram of a cross-sectional structure at a front viewing angle provided according to an embodiment of the utility model is shown;

[0017] Figure 4 A schematic diagram of the structure of a semicircular collar provided according to an embodiment of the utility model is shown;

[0018] Figure 5 A cross-sectional view of a semicircular collar provided according to an embodiment of the utility model is shown;

[0019] Figure 6 A schematic structural diagram of a clamping rod provided according to an embodiment of the utility model is shown.

[0020] Legend:

[0021] 1. Air inlet pipe; 2. Sponge ring; 3. Semicircular clamp ring; 4. Clamp rod; 5. Annular rubber ring; 6. Annular protrusion; 7. Flange one; 8. Rubber pad; 9. Extrusion spring; 10. Arc plate; 11. Annular groove; 12. Clamp head; 13. Flange two. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 , the utility model provides a technical solution:

[0024] An air inlet duct for an industrial hot air heating machine comprises an air inlet duct 1, a sponge ring 2 sleeved on the outer wall of the air inlet duct 1, which is convenient for protecting the air inlet duct 1; a flange 7 and a flange 2 13 are respectively arranged at both ends of the air inlet duct 1, which is convenient for connecting the air inlet duct 1; a semicircular clamping ring 3 is symmetrically arranged on the flange 1 7 and the flange 2 13, and an arc plate 10 is slidably arranged in the semicircular clamping ring 3, and an extrusion spring 9 is arranged between the arc plate 10 and the semicircular clamping ring 3, through the use of the extrusion spring 9, it is convenient to squeeze the flange 1 7 and the flange 2 13, so that the semicircular clamping ring 3 is clamped in the annular groove 11, so as to achieve stable fixation of the air inlet duct 1; a circular hole is opened on the semicircular clamping ring 3, and the circular holes are respectively flange 1 7 and flange 2 13, and a fixing piece is arranged in the circular hole; through the coordinated use of the semicircular clamping ring 3 and the fixing piece, it is convenient to connect the flange 1 7 and the flange 2 13 together, so as to achieve the connection of the air inlet duct 1.

[0025] In the utility model, the fixing part includes a clamping rod 4 arranged in a circular hole, and a plurality of clamping heads 12 are evenly arranged on the outer wall at one end of the clamping rod 4. By using the clamping rod 4 and the clamping heads 12 in coordination, it is convenient to quickly connect the flange 1 7 and the flange 2 13 together, thereby realizing the quick connection of the air inlet duct 1.

[0026] In the utility model, the clamping rod 4 and the clamping head 12 are both made of flexible rubber material, which is convenient for the elastic reset of the clamping head 12; and the clamping head 12 and the clamping rod 4 are arranged at an angle, which is convenient for the clamping head 12 to deform and pass through the circular hole, thereby facilitating the rapid fixing of flange 1 7 and flange 2 13 together, thereby realizing the rapid connection of the air inlet pipe 1.

[0027] In the utility model, an annular groove 11 cooperating with the semicircular clamping ring 3 is symmetrically opened on the outer wall of the clamping rod 4, which is convenient for limiting the clamping rod 4, preventing the clamping rod 4 from moving in the circular hole, and improving the stability of the air inlet pipe connection.

[0028] In the utility model, a rubber pad 8 is provided on the inner wall of the semicircular clamp ring 3. By using the rubber pad 8, the gap between the semicircular clamp ring 3 and the flange 1 7 and the flange 2 13 is reduced, thereby facilitating stable fixation of the air inlet pipe 1.

[0029] In the utility model, an annular rubber ring 5 is provided on the outer wall of the flange 2 13, and an annular sealing groove is provided on the flange 1 7 to cooperate with the annular rubber ring 5; through the coordinated use of the annular rubber ring 5 and the annular sealing groove, it is convenient to improve the sealing between the two air inlet pipes 1, avoid air leakage, and thus facilitate the flow of gas.

[0030] In the utility model, a plurality of annular protrusions 6 are evenly arranged on the outer wall of the annular rubber ring 5, and an annular groove is provided in the annular sealing groove to match the annular protrusions 6, thereby increasing the contact area between the annular rubber ring 5 and the annular sealing groove, thereby improving the sealing between the air inlet pipe 1.

[0031] Working principle: When the present invention is in use, when splicing two air inlet pipes 1, first align the flange 2 13 on one air inlet pipe 1 with the flange 1 7 on the other air inlet pipe 1, so that the annular rubber ring 5 is clamped in the annular sealing groove, and then the semicircular clamping ring 3 is clamped on the flange 1 7 and the flange 2 13, and the circular hole on the semicircular clamping ring 3 is aligned with the circular holes on the flange 1 7 and the flange 2 13, and then the clamping rod 4 is pressed into the circular hole. After the clamping head 12 passes through the circular hole, the clamping head 12 restores its elastic deformation to fix the flange 1 7 and the flange 2 13, thereby realizing the connection of the two air inlet pipes 1. Then, the above-mentioned operation method is installed to connect the air inlet pipes 1 together; and when disassembling the air inlet pipes 1, the two air inlet pipes 1 can be disassembled by simply removing the clamping rod 4. The operation is simple and convenient, which improves the work efficiency of installing or disassembling the air inlet pipes.

[0032] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air inlet duct for an industrial hot air heating machine, comprising an air inlet duct (1), a sponge ring (2) sleeved on the outer wall of the air inlet duct (1), and a flange plate 1 (7) and a flange plate 2 (13) respectively arranged at both ends of the air inlet duct (1), characterized in that: Semicircular clamping rings (3) are symmetrically arranged on the flange plate 1 (7) and the flange plate 2 (13), an arc plate (10) is slidably arranged inside the semicircular clamping ring (3), a compression spring (9) is arranged between the arc plate (10) and the semicircular clamping ring (3), a circular hole is opened on the semicircular clamping ring (3), and the circular holes are respectively arranged on the flange plate 1 (7) and the flange plate 2 (13), and a fixing piece is arranged inside the circular hole.

2. The air inlet duct for an industrial hot air heater according to claim 1, characterized in that: The fixing member comprises a clamping rod (4) arranged in a circular hole, and a plurality of clamping heads (12) are evenly arranged on the outer wall of one end of the clamping rod (4).

3. The air inlet duct for an industrial hot air heater according to claim 2, characterized in that: The clamping rod (4) and the clamping head (12) are both made of a flexible rubber material, and the clamping head (12) and the clamping rod (4) are arranged at an angle.

4. The air inlet duct for an industrial hot air heater according to claim 3 is characterized in that: An annular groove (11) that cooperates with the semicircular clamping ring (3) is symmetrically provided on the outer wall of the clamping rod (4).

5. The air inlet duct for an industrial hot air heater according to claim 1, characterized in that: A rubber pad (8) is provided on the inner wall of the semicircular clamping ring (3).

6. The air inlet duct for an industrial hot air heater according to claim 1, characterized in that: An annular rubber ring (5) is provided on the outer wall of the second flange (13), and an annular sealing groove is provided on the first flange (7) to match the annular rubber ring (5).

7. The air inlet duct for an industrial hot air heater according to claim 6, characterized in that: A plurality of annular protrusions (6) are evenly arranged on the outer wall of the annular rubber ring (5), and an annular groove is provided in the annular sealing groove to match the annular protrusions (6).

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