Air pipe angle steel flange

Abstract

The utility model belongs to the technical field of ventilation engineering, and particularly relates to an air pipe angle steel flange which comprises an air pipe and a flange frame, the two ends of the air pipe are fixedly connected with curled edges in an array mode, the curled edges located at the upper end and the lower end of the air pipe are symmetrically and fixedly connected with insertion strips, and the tops of the curled edges are connected with a second flange frame in an embedded mode. Second clamping plates are symmetrically and fixedly connected to the bottom of the second flange frame, a third clamping plate is fixedly connected to the position, located between the two second clamping plates, of the bottom of the second flange frame, and a second hemming groove used for allowing the hemming to be embedded and clamped is formed between the third clamping plate and the second clamping plates; the flange frame II is detachably connected with the flange frame through a screw rod I; the two sections of air pipes can be quickly spliced and mounted through the flanges, mounting is more convenient and faster, time and labor are saved, the air pipes and the flanges are not connected through bolts any more, the situation that after the bolts of the air pipes are used for a long time, leakproofness of the pipe walls of the air pipes is damaged is prevented, and ventilation performance is prevented from being reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation engineering, and in particular relates to an angle steel flange for an air duct. Background Art

[0002] Air duct is ventilation pipe, which is used for ventilation and air conditioning engineering in industrial and civil buildings. It is a kind of municipal infrastructure to make air circulate and reduce the concentration of harmful gases. It is generally made of galvanized sheet metal. Angle steel flange is a connecting device made of metal installed at both ends of the air duct, which can connect two sections of air duct to each other.

[0003] The existing duct angle steel flanges are all connected by bolts, whether they are the connection between ducts and flanges, or the connection between two sections of ducts through flanges. There are dozens of bolts of different sizes, which are time-consuming and laborious to install and disassemble. Moreover, after long-term use, the bolts of the ducts will to some extent destroy the airtightness of the duct wall, thereby reducing the ventilation performance. Utility Model Content

[0004] The purpose of the utility model is to provide an air duct angle steel flange, which can relatively quickly splice and install two sections of air duct through the flange, making the installation more convenient and quick, saving time and effort, and no longer using bolts to connect the air duct and the flange, preventing the bolts of the air duct from damaging the airtightness of the air duct wall after long-term use, thereby avoiding a decrease in ventilation performance.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An air duct angle steel flange comprises an air duct and a flange frame, wherein both ends of the air duct are fixedly connected with curling edges in an array, the curling edges at the upper and lower ends of the air duct are symmetrically fixedly connected with molding strips, the top of the curling edge is embeddedly connected with a flange frame 2, the bottom of the flange frame 2 is symmetrically fixedly connected with a clamping plate 2, the bottom of the flange frame 2 is fixedly connected with a clamping plate 3 located between the two clamping plates 2, a curling groove 2 for the curling edge to be embedded and engaged is provided between the clamping plate 3 and the clamping plate 2, and the flange frame 2 is detachably connected to the flange frame through a screw 1;

[0007] The flange frame is slidably connected to one end of the air duct, and the outer walls of both sides of the flange frame are fixedly connected with a screw tube 1, and the inner wall of the screw tube 1 is rotatably screwed with a screw rod 2, and the inner wall of the flange frame is symmetrically fixedly connected with a clamping plate 1, and the inner wall of the flange frame is fixedly connected with a clamping plate 4 located between the two clamping plates 1, and a curling groove 1 for the curling to be embedded and engaged is opened between the clamping plates 1 and 4.

[0008] Two ends of the second curling groove are symmetrically provided with second embedding grooves for embedding the embedding strip.

[0009] The top of the flange frame is symmetrically provided with a screw tube 2 for screwing and embedding the screw rod 1.

[0010] The first spiral tube is connected to the second spiral tube internally.

[0011] One end of the screw rod 1 is provided with a positioning hole for the screw rod 2 to be embedded and fixed.

[0012] Both ends of the curling groove one at the bottom of the inner wall of the flange frame are provided with embedding grooves one for embedding the embedding strip.

[0013] The four clamping plates are fixedly connected with fixing rods in an array-like manner around their periphery.

[0014] The clamping plate 4 is detachably connected with a sealing ring via a fixing rod.

[0015] The technical effect achieved by the utility model is that two sections of air duct can be installed relatively quickly by splicing and installing them through flanges, the installation is more convenient and quick, time-saving and labor-saving, and the air duct and the flange are no longer connected by bolts, which prevents the bolts of the air duct from damaging the airtightness of the air duct wall after long-term use, thereby avoiding the decline in ventilation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall appearance diagram of the duct angle steel flange provided in the embodiment of the utility model;

[0017] Figure 2 This is a structural disassembly diagram of the duct angle steel flange provided in the embodiment of the utility model;

[0018] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0020] Figure 5 It is a bottom view of the structure of flange frame 2 provided in an embodiment of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Air duct; 101. Curling; 102. Embossed strip; 2. Flange frame; 201. Flange frame 2; 202. Screw 1; 203. Screw 2; 204. Screw tube 1; 205. Positioning hole; 206. Clamp 1; 207. Screw tube 2; 208. Fixing rod; 209. Sealing ring; 210. Embossed groove 1; 211. Curling groove 1; 212. Clamp 2; 213. Clamp 3; 214. Embossed groove 2; 215. Curling groove 2; 216. Clamp 4. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in conjunction with the embodiments below. It should be understood by those skilled in the art that in the disclosure of the utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the above terms cannot be understood as limiting the utility model.

[0024] like Figure 1-4 As shown, a duct angle steel flange comprises a duct 1 and a flange frame 2, wherein both ends of the duct 1 are fixedly connected with curling edges 101 in an array, the curling edges 101 located at the upper and lower ends of the duct 1 are symmetrically fixedly connected with molding strips 102, the top of the curling edge 101 is embeddedly connected with a flange frame 201, the bottom of the flange frame 201 is symmetrically fixedly connected with a clamping plate 212, the bottom of the flange frame 201 is fixedly connected with a clamping plate 3 213 located between the two clamping plates 212, a curling groove 215 for embedding and engaging the curling edge 101 is provided between the clamping plate 3 213 and the clamping plate 212, and two embedding grooves 214 for embedding the molding strip 102 are symmetrically dug at both ends of the curling groove 215, and the flange frame 201 is detachably connected to the flange frame 2 through a screw 1 202;

[0025] Refer to the attached Figure 1-5 The flange frame 2 is slidably connected to one end of the air duct 1, and the outer walls of both sides of the flange frame 2 are fixedly connected with a screw tube 204, and the inner wall of the screw tube 204 is rotatably screwed with a screw rod 203. The top of the flange frame 2 is symmetrically provided with a screw tube 207 for screwing and embedding the screw rod 202, and the screw tube 204 is connected to the inside of the screw tube 207, and a positioning hole 205 for embedding and fixing the screw rod 203 is penetrated and opened at one end of the screw rod 202, and the inner wall of the flange frame 2 is symmetrically fixedly connected with a clamping plate 207. 206, a clamping plate four 216 is fixedly connected to the inner wall of the flange frame 2 and located between the two clamping plates 1 206, a curling groove 211 for the curling 101 to be embedded and engaged is opened between the clamping plates 1 206 and the clamping plates 216, and embedding grooves 210 for the embedding of the embedding strip 102 are dug at both ends of the curling groove 211 located at the bottom of the inner wall of the flange frame 2, and the clamping plates 216 are fixedly connected to the fixing rods 208 in an array-like manner around the clamping rods 208, and the clamping plates 216 are detachably connected to the sealing rings 209 through the fixing rods 208.

[0026] According to the above structure, firstly, the sealing ring 209 is embedded in the outer wall of the installation and fixing rod 208, and one end of the air duct 1 is aligned with the flange frame 2, so that the curling edge 101 slides down along the curling edge groove 1 211 until the molding strip 102 is embedded in the embedding groove 1 210. At this time, the curling edge 101 is embedded in the curling edge groove 1 211, and the molding strip 102 is embedded in the embedding groove 1 210. The clamping plate 1 206 and the sealing ring 209 clamp the curling edge 101 from both sides respectively. The other air duct 1 is installed in the same way. The flange frame 2 clamps the two air ducts 1 at the same time. The sealing ring 209 is located between the two air ducts 1. The curling edge groove 215 clamps the curling edge 101, and the embedding groove 214 clamps the molding strip 102. The flange frame 201 is placed on the top of the flange frame 2 and the screw 1 202 is turned to make the flange frame 201 be placed on the top of the flange frame 2. The screw rod 1 202 is screwed into the bottom of the screw tube 207. At this time, the positioning hole 205 will be aligned with the screw tube 1 204. The screw rod 203 is then screwed and embedded in the inner wall of the screw tube 1 204 until one end of the screw rod 203 is embedded in the positioning hole 205. The positioning hole 205 is fixed. The flange frame 2 and the flange frame 201 are embedded and locked. At the same time, the splicing and fixation of the two air ducts 1 are also completed. The air duct 1 is fixed by the curling edge 101, the molding strip 102 and the flange frame 2. The utility model can quickly install the two sections of air duct 1 through flange splicing. The installation is more convenient and quick, saving time and effort. The air duct 1 and the flange are no longer connected by bolts, which prevents the bolts of the air duct 1 from damaging the airtightness of the air duct 1 wall after long-term use, thereby avoiding the decline in ventilation performance.

[0027] The working principle of the utility model is as follows: first, the sealing ring 209 is embedded in the outer wall of the installation and fixing rod 208, one end of the air duct 1 is aligned with the flange frame 2, and the curling edge 101 slides down along the curling edge groove 1 211 until the insert strip 102 is embedded in the insert groove 1 210. At this time, the curling edge 101 is embedded in the curling edge groove 1 211, the insert strip 102 is embedded in the insert groove 1 210, the clamping plate 1 206 and the sealing ring 209 clamp the curling edge 101 from both sides respectively, and the other air duct 1 is installed in the same way. The flange frame 2 is clamped to the two air ducts 1 at the same time, the sealing ring 209 is located between the two air ducts 1, and the curling edge groove 215 clamps the curling edge 1 01 is engaged, the embedding groove 214 engages the embedding strip 102, the flange frame 201 is placed on the top of the flange frame 2 and the screw 1 202 is turned to make the screw 1 202 screwed into the bottom of the screw tube 207. At this time, the positioning hole 205 will be aligned with the screw tube 1 204, and then the screw 203 is screwed into the inner wall of the screw tube 1 204 until one end of the screw 203 is embedded in the positioning hole 205, and the positioning hole 205 is fixed. When the flange frame 2 and the flange frame 201 are embedded and locked, the splicing and fixation of the two air ducts 1 are also completed, and the air duct 1 is fixed by the curling 101, the embedding strip 102 and the flange frame 2.

[0028] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An air duct angle steel flange, comprising an air duct (1) and a flange frame (2), characterized in that: The two ends of the air duct (1) are fixedly connected with curling edges (101) in an array manner, the curling edges (101) located at the upper and lower ends of the air duct (1) are symmetrically fixedly connected with molding strips (102), the top of the curling edge (101) is embeddedly connected with a flange frame (201), the bottom of the flange frame (201) is symmetrically fixedly connected with a clamping plate (212), the bottom of the flange frame (201) is fixedly connected with a clamping plate (3) (213) between the two clamping plates (212), a curling groove (215) for the curling edge (101) to be embedded and engaged is provided between the clamping plate (3) (213) and the clamping plate (212), and the flange frame (201) is detachably connected to the flange frame (2) via a screw (202); The flange frame (2) is slidably connected to one end of the air duct (1), and the outer walls on both sides of the flange frame (2) are fixedly connected with a screw tube (204), and the inner wall of the screw tube (204) is rotatably screwed with a screw rod (203), and the inner wall of the flange frame (2) is symmetrically fixedly connected with a clamping plate (206), and the inner wall of the flange frame (2) is fixedly connected with a clamping plate (216) located between the two clamping plates (206), and a curling groove (211) for the curling edge (101) to be embedded and engaged is provided between the clamping plates (206) and the clamping plates (216).

2. The duct angle steel flange according to claim 1, characterized in that: Two ends of the second curling groove (215) are symmetrically provided with second embedding grooves (214) for embedding the embedding strip (102).

3. The duct angle steel flange according to claim 1, characterized in that: The top of the flange frame (2) is symmetrically provided with a screw tube 2 (207) for screwing and embedding the screw rod 1 (202).

4. The duct angle steel flange according to claim 3, characterized in that: The first spiral tube (204) is connected to the inside of the second spiral tube (207).

5. The duct angle steel flange according to claim 1, characterized in that: One end of the screw rod 1 (202) is provided with a positioning hole (205) for the screw rod 2 (203) to be embedded and fixed.

6. The duct angle steel flange according to claim 1, characterized in that: Embedding grooves (210) for embedding the embedding strip (102) are provided at both ends of a curling groove (211) located at the bottom of the inner wall of the flange frame (2).

7. The air duct angle steel flange according to claim 1, characterized in that: The clamp plate 4 (216) is fixedly connected to a fixing rod (208) in an array-like manner around its periphery.

8. The air duct angle steel flange according to claim 7, characterized in that: The clamping plate 4 (216) is detachably connected to a sealing ring (209) via a fixing rod (208).

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