Novel anti-fatigue stainless steel air pipe

Abstract

The utility model discloses a novel anti-fatigue stainless steel air pipe which comprises a stainless steel square air pipe body, side edge butt joint flange rings are welded to the two sides of the stainless steel square air pipe body respectively, and a plurality of sets of flange screw holes are formed in the side edge butt joint flange rings. Connecting position anti-fatigue structures are arranged on the two sides of the stainless steel square air pipe respectively. According to the novel anti-fatigue stainless steel air pipe, the square ring, the reserved screw holes, the first extension pipe and the second extension pipe are arranged, when the novel anti-fatigue stainless steel air pipe is used, the first extension pipe and the second extension pipe on the side edges of the square ring are correspondingly inserted into butt joint openings of two sets of air pipes correspondingly, and the square ring improves the strength of the joint between two sets of side edge butt joint flange rings; and the first extension pipe and the second extension pipe support the stainless steel square air pipes on the two sides, the fatigue period is prolonged, the function of strengthening fatigue resistance at the connecting position is achieved, and the problem that the device does not have the function of strengthening fatigue resistance at the connecting position is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel air ducts, in particular to a new type of fatigue-resistant stainless steel air duct. Background Art

[0002] Stainless steel air duct is a common indoor ventilation duct, mainly used for air circulation and gas discharge, and is widely used in office buildings, production workshops, and catering places.

[0003] Currently, most of the common stainless steel air ducts on the market are similar in structure, with a stainless steel pipe body as the main body. There are flange rings on both sides of the pipe body for docking between air ducts, and airflow passes through the inside of the pipe body. There are some functional deficiencies in actual use and there is room for improvement. For example, although the pipe body is fixed with fixings, it will still swing slightly under the impact of airflow. The flange at the pipe connection position is the stress area, which is prone to repeated deformation during the swinging process, causing metal fatigue. Flange cracking is also the most common problem in air duct damage, and the connection position does not have the function of strengthening anti-fatigue.

[0004] Now, a new type of fatigue-resistant stainless steel air duct is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a novel anti-fatigue stainless steel air duct to solve the problem that the connection position has no function of enhancing anti-fatigue proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of fatigue-resistant stainless steel air duct, including a stainless steel square air duct, side butt flange rings are respectively welded on both sides of the stainless steel square air duct, and multiple groups of flange screw eyes are arranged inside the side butt flange rings, and steel transverse reinforcement strips are respectively welded transversely on the upper and lower ends of the front and rear surfaces of the stainless steel square air duct, and multiple groups of internal threaded holes are arranged inside the steel transverse reinforcement strips, and two groups of suspension supporting plates are arranged below the stainless steel square air duct, and suspension screw eyes are respectively arranged on the front and rear ends of the bottom of the stainless steel square air duct, and limiting plates are respectively welded on the front and rear ends of the top of the suspension supporting plate, and internal threaded sockets are arranged at the middle position of the upper and lower ends of the stainless steel square air duct, and a transparent plastic bottle is inserted at the bottom of the internal threaded socket, a rubber plug is arranged above the stainless steel square air duct, and connection position anti-fatigue structures are respectively arranged on both sides of the stainless steel square air duct.

[0007] The anti-fatigue structure at the connection position includes a square ring, which is arranged on the outer side of the side docking flange ring. A plurality of groups of reserved screw eyes are arranged inside the square ring. A first extension tube is welded on one side of the square ring, and a second extension tube is welded on the other side of the square ring.

[0008] Preferably, the side butt flange ring and the square ring have the same size, and the position size of the reserved screw eye corresponds to the position size of the flange screw eye.

[0009] Preferably, one side of the first extension tube is connected to the second extension tube, and the interiors of the first extension tube and the second extension tube are interconnected.

[0010] Preferably, the inner diameter and outer diameter of the first extension tube and the second extension tube are the same, and the outer diameters of the first extension tube and the second extension tube are consistent with the inner diameter of the stainless steel square air duct.

[0011] Preferably, the steel transverse reinforcement strips are symmetrically distributed about the horizontal center line of the stainless steel square air duct, and the internal thread holes are arranged at equal intervals.

[0012] Preferably, two sets of hand-tightened bolts are inserted into one end of the limit plate, one end of the limit plate is fitted with one end of the steel transverse reinforcement strip, and the hand-tightened bolts penetrate one end of the limit plate and extend into the interior of the internal threaded hole.

[0013] Preferably, the interiors of the stainless steel square air duct, the internally threaded socket, and the transparent plastic bottle are interconnected, and the vertical center lines of the stainless steel square air duct, the internally threaded socket, and the transparent plastic bottle coincide with each other.

[0014] Preferably, the threads on the top of the outside of the transparent plastic bottle match the threads inside the internal thread socket, and the threads on the outside of the rubber stopper match the threads inside the internal thread socket.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the new anti-fatigue stainless steel air duct not only realizes the function of strengthening the anti-fatigue of the connection position, realizes the function of adjusting the position of the bearing part, but also realizes the function of feedback of the internal environment of the air duct;

[0016] (1) By providing a square ring, a reserved screw eye, a first extension tube and a second extension tube, when in use, the stainless steel square air duct is suspended or fixed on the roof, and the airflow passes through the stainless steel square air duct. The side docking flange ring is used for docking between the air ducts. When docking the air ducts, the first extension tube and the second extension tube on the side of the square ring are respectively inserted into the docking interfaces of the two groups of air ducts. As the two groups of air ducts are aligned, the side docking flange rings of the two groups of stainless steel square air ducts are respectively attached to the two sides of the square ring, and bolts are driven into the flange screw eyes of the side docking flange rings for fixing. The bolts pass through the flange screw eyes and the reserved screw eyes. The square ring increases the strength of the connection between the two groups of side docking flange rings, and the first extension tube and the second extension tube support the stainless steel square air ducts on both sides. The force on the connection position is dispersed, the fatigue cycle is extended, and the function of strengthening the anti-fatigue of the connection position is achieved;

[0017] (2) By providing a steel transverse reinforcement strip, an internally threaded eyelet, a suspension support plate, a suspension screw eyelet, a limit plate and a hand-tightening bolt, when in use, the position of the suspension support plate can be adjusted according to the actual reserved situation of the installation position of the roof, and the hand-tightening bolt on the limit plate is loosened to disengage it from the internally threaded eyelet, and the suspension support plate can be adjusted along the bottom of the steel transverse reinforcement strip. After adjusting to a suitable position, the hand-tightening bolt is tightened again, and the hand-tightening bolt is screwed into the internally threaded eyelet, and the position of the suspension support plate is fixed. The suspension screw eyelet is used to pass a steel wire or a threaded rod during installation, thereby realizing the function of adjustable position of the bearing member;

[0018] (3) By providing an internal thread socket, a transparent plastic bottle and a rubber plug, when in use, the airflow passes through the stainless steel square air duct. When the airflow contains dust or oil stains, the inner wall of the stainless steel square air duct will be adhered. The adhered matter will easily fall down along the opening of the internal thread socket. The transparent plastic bottle will receive the fallen matter, making it convenient for operation and maintenance personnel to observe and understand from below. The rubber plug can plug the unused internal thread socket to prevent air leakage, thereby realizing the function of feedback on the internal environment of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial side cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the front view structure of the square ring of the utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the suspended supporting plate of the utility model when viewed from top.

[0023] In the figure: 1. Stainless steel square air duct; 2. Side docking flange ring; 3. Flange screw eye; 4. Square ring; 5. Reserved screw eye; 6. First extension pipe; 7. Second extension pipe; 8. Steel transverse reinforcement strip; 9. Internally threaded hole; 10. Suspension support plate; 11. Suspension screw eye; 12. Limiting plate; 13. Hand-tightened bolt; 14. Internally threaded socket; 15. Transparent plastic bottle; 16. Rubber plug. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] Example 1: Please refer to Figure 1-4 A new type of fatigue-resistant stainless steel air duct includes a stainless steel square air duct 1, side butt flange rings 2 are welded on both sides of the stainless steel square air duct 1, a plurality of groups of flange screw eyes 3 are arranged inside the side butt flange ring 2, and anti-fatigue structures of connection positions are arranged on both sides of the stainless steel square air duct 1;

[0026] See also Figure 1-4 A novel anti-fatigue stainless steel air duct also includes an anti-fatigue structure at a connection position, the anti-fatigue structure at the connection position includes a square ring 4, the square ring 4 is arranged on the outer side of the side docking flange ring 2, a plurality of groups of reserved screw eyes 5 are arranged inside the square ring 4, a first extension tube 6 is welded on one side of the square ring 4, and a second extension tube 7 is welded on the other side of the square ring 4;

[0027] The side butt flange ring 2 and the square ring 4 have the same size, the position size of the reserved screw eye 5 corresponds to the position size of the flange screw eye 3, one side of the first extension tube 6 and the second extension tube 7 are connected, the inside of the first extension tube 6 and the second extension tube 7 are connected, the inner diameter and outer diameter of the first extension tube 6 and the second extension tube 7 are the same, and the outer diameter of the first extension tube 6 and the second extension tube 7 is consistent with the inner diameter of the stainless steel square air duct 1, which can increase the strength of the air duct connection position and delay the generation of fatigue;

[0028] Specifically, Figure 2 and Figure 3 As shown, the first extension tube 6 and the second extension tube 7 on the side of the square ring 4 are respectively inserted into the docking interfaces of the two groups of air ducts. As the two groups of air ducts are aligned, the side docking flange rings 2 of the two groups of stainless steel square air ducts 1 are respectively attached to the two sides of the square ring 4, and bolts are driven into the flange screw eyes 3 of the side docking flange rings 2 for fixing. The bolts pass through the flange screw eyes 3 and the reserved screw eyes 5. The square ring 4 increases the strength of the connection between the two groups of side docking flange rings 2, and the first extension tube 6 and the second extension tube 7 support the stainless steel square air ducts 1 on both sides, so that the force on the connection position is dispersed and the fatigue cycle is extended.

[0029] Embodiment 2: Steel transverse reinforcement strips 8 are welded laterally at the upper and lower ends of the front and rear surfaces of the stainless steel square air duct 1, and a plurality of groups of internal threaded holes 9 are arranged inside the steel transverse reinforcement strips 8. Two groups of suspension support plates 10 are arranged below the stainless steel square air duct 1. Suspension screw eyes 11 are arranged at the front and rear ends of the bottom of the stainless steel square air duct 1, and limiting plates 12 are welded at the front and rear ends of the top of the suspension support plate 10. The steel transverse reinforcement strips 8 are symmetrically distributed about the horizontal center line of the stainless steel square air duct 1, and the internal threaded holes 9 are arranged at equal intervals. Two groups of hand-tightening bolts 13 are inserted at one end of the limiting plate 12, and one end of the limiting plate 12 is fitted with one end of the steel transverse reinforcement strip 8. The hand-tightening bolts 13 pass through one end of the limiting plate 12 and extend into the inside of the internal threaded hole 9, so as to facilitate the adjustment of the position of the bearing member.

[0030] Specifically, Figure 1 and Figure 4 As shown, the hand-tightening bolt 13 on the limit plate 12 is loosened to disengage it from the internal threaded hole 9, and the suspension support plate 10 can be adjusted along the bottom of the steel transverse reinforcement strip 8. After adjusting to the appropriate position, the hand-tightening bolt 13 is re-tightened, and the hand-tightening bolt 13 is screwed into the internal threaded hole 9. The position of the suspension support plate 10 is fixed, and the suspension screw eye 11 is used to pass a steel wire or a threaded rod during installation.

[0031] Embodiment 3: An internal thread socket 14 is provided at the middle position of the upper and lower ends of the stainless steel square air duct 1, a transparent plastic bottle 15 is plugged into the bottom end of the internal thread socket 14, a rubber plug 16 is provided above the stainless steel square air duct 1, the stainless steel square air duct 1, the internal thread socket 14, and the transparent plastic bottle 15 are connected to each other, the vertical center lines of the stainless steel square air duct 1, the internal thread socket 14, and the transparent plastic bottle 15 coincide with each other, the threads on the top of the outside of the transparent plastic bottle 15 match with the threads inside the internal thread socket 14, and the threads on the outside of the rubber plug 16 match with the threads inside the internal thread socket 14, so that the condition of the inner wall of the air duct can be intuitively fed back;

[0032] Specifically, Figure 1 and Figure 2 As shown, the adhered objects on the inner wall of the stainless steel square air duct 1 are easy to fall downward along the opening of the internal threaded socket 14, and the transparent plastic bottle 15 receives the fallen objects, which is convenient for the operation and maintenance personnel to observe and understand from below. The rubber plug 16 can plug the unused internal threaded socket 14 to prevent air leakage.

[0033] Working principle: When the utility model is in use, first, the stainless steel square air duct 1 is suspended or fixed on the roof, and the air flow passes through the stainless steel square air duct 1. The side docking flange ring 2 is used for docking between the air ducts. When docking the air ducts, the first extension tube 6 and the second extension tube 7 on the side of the square ring 4 are respectively inserted into the docking interfaces of the two groups of air ducts. As the two groups of air ducts are aligned, the side docking flange rings 2 of the two groups of stainless steel square air ducts 1 are respectively attached to the two sides of the square ring 4, and bolts are driven into the flange screw eyes 3 of the side docking flange ring 2 for fixing. The bolts pass through the flange screw eyes 3 and the reserved screw eyes 5. The square ring 4 increases the strength of the connection between the two groups of side docking flange rings 2, and the first extension tube 6 and the second extension tube 7 support the stainless steel square air ducts 1 on both sides, so that the force on the connection position is dispersed and the fatigue cycle is extended. According to the actual reserved installation position of the roof, the position of the suspension support plate 10 can be adjusted, and the hand-tightening bolts 13 on the limit plate 12 can be loosened to disengage the internal threaded holes 9. The suspension support plate 10 can be adjusted along the bottom of the steel transverse reinforcement strip 8. After adjusting to the appropriate position, the hand-tightening bolts 13 are re-tightened, and the hand-tightening bolts 13 are screwed into the internal threaded holes 9. The position of the suspension support plate 10 is fixed, and the suspension screw eye 11 is used to pass the steel wire or threaded rod during installation. The airflow passes through the stainless steel square air duct 1. When the airflow contains dust or oil stains, the inner wall of the stainless steel square air duct 1 will be adhered, and the adhered objects are easy to fall down along the opening of the internal threaded socket 14. The transparent plastic bottle 15 receives the fallen objects, which is convenient for the operation and maintenance personnel to observe and understand from below. The rubber plug 16 can plug the unused internal threaded socket 14 to prevent air leakage.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A novel anti-fatigue stainless steel air duct, comprising a stainless steel square air duct (1), characterized in that: Side butt flange rings (2) are welded to both sides of the stainless steel square air duct (1), and a plurality of flange screw eyes (3) are arranged inside the side butt flange rings (2). Steel transverse reinforcement strips (8) are welded to the upper and lower ends of the front and rear surfaces of the stainless steel square air duct (1), and a plurality of internal threaded holes (9) are arranged inside the steel transverse reinforcement strips (8). Two groups of suspension support plates (10) are arranged below the stainless steel square air duct (1). Suspension screw eyes (11) are arranged at the front and rear ends of the bottom of the stainless steel square air duct (1), and limit plates (12) are welded to the front and rear ends of the top of the suspension support plate (10). Internal threaded sockets (14) are arranged at the middle positions of the upper and lower ends of the stainless steel square air duct (1), and a transparent plastic bottle (15) is inserted at the bottom end of the internal threaded sockets (14). A rubber plug (16) is arranged above the stainless steel square air duct (1), and anti-fatigue structures at the connection positions are arranged on both sides of the stainless steel square air duct (1). The anti-fatigue structure at the connection position comprises a square ring (4), the square ring (4) is arranged on the outer side of the side butt flange ring (2), a plurality of groups of reserved screw eyes (5) are arranged inside the square ring (4), a first extension tube (6) is welded on one side of the square ring (4), and a second extension tube (7) is welded on the other side of the square ring (4).

2. The novel anti-fatigue stainless steel air duct according to claim 1 is characterized by: The side butt flange ring (2) and the square ring (4) have the same size, and the position size of the reserved screw eye (5) corresponds to the position size of the flange screw eye (3).

3. The novel anti-fatigue stainless steel air duct according to claim 1 is characterized in that: One side of the first extension tube (6) and the second extension tube (7) are connected, and the interiors of the first extension tube (6) and the second extension tube (7) are interconnected.

4. The novel anti-fatigue stainless steel air duct according to claim 1 is characterized by: The inner diameter and outer diameter of the first extension tube (6) and the second extension tube (7) are the same, and the outer diameters of the first extension tube (6) and the second extension tube (7) are consistent with the inner diameter of the stainless steel square air duct (1).

5. The novel anti-fatigue stainless steel air duct according to claim 1 is characterized by: The steel transverse reinforcement strips (8) are symmetrically distributed about the horizontal center line of the stainless steel square air duct (1), and the internal thread holes (9) are arranged at equal intervals.

6. The novel anti-fatigue stainless steel air duct according to claim 1 is characterized by: Two groups of hand-tightened bolts (13) are inserted into one end of the limit plate (12), one end of the limit plate (12) is in contact with one end of the steel transverse reinforcement strip (8), and the hand-tightened bolts (13) pass through one end of the limit plate (12) and extend into the interior of the internal threaded hole (9).

7. The novel anti-fatigue stainless steel air duct according to claim 1 is characterized by: The interiors of the stainless steel square air duct (1), the internal thread socket (14), and the transparent plastic bottle (15) are interconnected, and the vertical center lines of the stainless steel square air duct (1), the internal thread socket (14), and the transparent plastic bottle (15) coincide with each other.

8. The novel anti-fatigue stainless steel air duct according to claim 1 is characterized by: The threads on the top of the transparent plastic bottle (15) match the threads inside the internal thread socket (14), and the threads on the top of the rubber stopper (16) match the threads inside the internal thread socket (14).

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