Quick dismounting connector for air pipe flange

Abstract

The utility model provides an air pipe flange quick disassembly joint, which relates to the technical field of air pipes and comprises a first flange and a second flange, a thickening layer is arranged at the edge of one end of the first flange, one end of the second flange is fixedly connected with a connecting pipe, and a step is formed at the joint of the connecting pipe and the second flange. By arranging the pull rope, the clamping block and the rotating cover, an operator manually rotates the rotating cover to drive one end of the pull rope to do circular motion and be far away from the corresponding clamping groove, the other end of the pull rope does linear motion through limiting of the through hole, and the pull rope is driven to rotate by the clamping block and the rotating cover. Therefore, the clamping blocks are driven to do linear motion and get away from the thickening layer, the clamping blocks are pulled out of the clamping grooves, the connecting pipe and the thickening layer are separated from a fixed state, and the first flange and the second flange are separated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a duct technology field especially relates to a duct flange quick detach joint. BACKGROUND

[0002] Duct, for air delivery and distribution of pipeline system, there are composite duct and inorganic duct two, according to cross section shape, duct can be divided into round duct, rectangular duct, flat round duct and many kinds, in the interior of some large buildings, will be connected with duct and exhaust ventilation, at the duct connection, need to use flange to butt joint and fix the pipeline.

[0003] A kind of quick detach joint of fireproof duct flange in prior art, public number is: CN214368380U, when using, user presses pressing plate, then user rotates handle, simultaneously handle drives rotating handle rotation, then rotating handle drives first rotating shaft rotation, simultaneously first rotating shaft drives first gear rotation, then first gear drives second gear rotation, simultaneously second gear drives second rotating shaft rotation, then second rotating shaft drives third gear rotation, simultaneously third gear drives rack plate to the middle movement, then rack plate drives movable plate to the middle movement, simultaneously moving plate drives limit block to the middle movement and from the inner cavity of limit slot disengagement, then limit plate moves upwards under the action of first spring, simultaneously limit plate drives connecting column to move upwards, then connecting column drives second flange to move upwards, at this time, first flange is separated from second flange.

[0004] The joint uses multiple gears, plates, shafts and springs for transmission cooperation, resulting in complex internal structure, making the production cost of the joint higher, and increasing the possibility of damage. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in prior art and provides a kind of quick detach joint of duct flange.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a kind of quick detach joint of duct flange, including first flange and second flange, the first flange is close to the thickening layer of one end edge, the second flange one end is fixedly connected with connecting pipe, the connecting pipe is formed with step at the connecting place with second flange, the thickening layer is inserted with connecting pipe and step is used to abut with thickening layer, the connecting pipe outside is equipped with installation rotating cover, the rotating cover is in and is provided with the clamping block of connecting pipe through setting, the clamping block is provided with multiple and is arranged in the second flange center circumferential direction, the thickening layer outside is equipped with multiple for with the clamping block of insertion clamping groove, the clamping block is between rotating cover and is provided with pull rope.

[0007] Preferably, opposite sides of the clamping block and the rotating cover are fixedly connected with position-opposite connecting buckles, and two ends of the pull rope are respectively fixedly connected with the two position-opposite connecting buckles.

[0008] Preferably, the rotating cover is internally provided with a mounting frame fixedly connected with the connecting pipe at the position of the clamping block, a through hole is formed in the top surface of the mounting frame, the pull rope is arranged to penetrate through the mounting frame through the through hole, and the hole axis of the through hole is arranged to be perpendicular to the top surface of the connecting buckle.

[0009] Preferably, the top of the clamping block is smoothly arranged, the inner side of the rotating cover is provided with a plurality of wheel bracket arms, and one end of each wheel bracket arm is rotatably connected with a pulley for extruding the top of the clamping block.

[0010] Preferably, a plurality of circumferentially-arranged limiting grooves are formed in the outer side of the first flange, and a plurality of positioning rods are fixedly connected with the connecting pipe and are in sliding fit with the limiting grooves.

[0011] Preferably, an extension plate is fixedly connected with the outer side edge of the connecting pipe, and the extension plate is fixedly connected with the rotating cover through bolts.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] 1. In the utility model, the pull rope, the clamping block and the rotating cover are arranged, the operator manually rotates the rotating cover, drives one end of the pull rope to make circular motion and move away from the corresponding clamping groove, the other end of the pull rope makes linear motion through the limiting of the through hole, thereby driving the clamping block to make linear motion and move away from the thickened layer, the clamping block is pulled out of the clamping groove, the connecting pipe and the thickened layer are separated from the fixed state, thereby separating the first flange from the second flange, and the structure is simple and practical.

[0014] 2. In the utility model, the wheel bracket arm and the pulley are arranged, after the connecting pipe and the thickened layer are inserted, the rotating cover is rotated, the wheel bracket arm is driven to rotate, the wheel bracket arm drives the pulley to move towards the clamping block, the pulley contacts the top of the clamping block, the rotating cover is continuously rotated, the clamping block is extruded and rolls on the smoothly-arranged top of the clamping block, thereby extruding the clamping block to move towards the thickened layer, and the clamping block is inserted into the clamping groove. DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic diagram of a quick dismounting joint of a flange of an air pipe is provided in the utility model;

[0016] Figure 2 A side view three-dimensional structure schematic diagram of the utility model is provided in the utility model Figure 1 ;

[0017] Figure 3 A sectional view of the utility model is provided in the utility model Figure 1 ;

[0018] Figure 4 For the side profile of the utility model Figure 1 of the schematic diagram of the structure;

[0019] Figure 5 For Figure 3 the enlarged view of A in the utility model

[0020] Figure 6 For Figure 4 the enlarged view of B in the utility model

[0021] Legend: 1, first flange; 2, second flange; 3, limit slot; 4, positioning rod; 5, rotating cover; 6, connecting pipe; 7, step; 8, through hole; 9, bolt; 10, extension plate; 11, mounting bracket; 12, clamping block; 13, clamping groove; 14, wheel arm; 15, pull rope; 16, connecting buckle; 17, pulley; 18, thickening layer. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and examples.It should be noted that the examples of the present application and the features in the examples can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific examples disclosed in the following description.

[0024] As Figures 1-6 shown, a quick dismounting joint of air pipe flange, including first flange 1 and second flange 2, first flange 1 is close to one end edge and is provided with thickening layer 18, one end of second flange 2 is fixedly connected with connecting pipe 6, and the connecting place of connecting pipe 6 and second flange 2 forms step 7, thickening layer 18 is inserted with connecting pipe 6 and step 7 is used for abutting with thickening layer 18, rotating cover 5 is set on the outside of connecting pipe 6, clamping block 12 is set in rotating cover 5 and is inserted with connecting pipe 6, clamping block 12 is set with multiple and is circumferentially set around the center of second flange 2, a plurality of clamping grooves 13 for being inserted with clamping block 12 are set on the outside of thickening layer 18, pull rope 15 is set between clamping block 12 and rotating cover 5, and the opposite connecting buckles 16 of clamping block 12 and rotating cover 5 are fixedly connected, the two ends of pull rope 15 are respectively tied and fixed with the opposite two connecting buckles 16, mounting bracket 11 fixedly connected with connecting pipe 6 is set at the position of clamping block 12 in rotating cover 5, through hole 8 is set on the top surface of mounting bracket 11, pull rope 15 is inserted with mounting bracket 11 through through hole 8, and the hole axis of through hole 8 is vertically set with the top surface of connecting buckle 16.

[0025] In the technical solution, the connecting pipe 6 and the thickened layer 18 are inserted to connect the first flange 1 and the second flange 2, the clamping block 12 is moved to the thickened layer 18 and is inserted into the clamping groove 13 on the thickened layer 18 to fix the connecting pipe 6 and the thickened layer 18 after the insertion of the connecting pipe 6 and the thickened layer 18, the pull rope 15 and the rotating cover 5 are arranged, the operator manually rotates the rotating cover 5 to drive the connecting buckle 16 on the rotating cover 5 to move in a circle, one end of the pull rope 15 is moved in a circle, the other end of the pull rope 15 is moved in a straight line through the limiting of the through hole 8, and the connecting buckle 16 on the clamping block 12 is moved to drive the clamping block 12 to move in a straight line.

[0026] As shown in Figure 6 , the top of the clamping block 12 is smoothly arranged, the inner side of the rotating cover 5 is provided with a plurality of wheel arms 14, and one end of the wheel arm 14 is rotatably connected with a pulley 17 for extruding the top of the clamping block 12.

[0027] In the technical solution, when the connecting pipe 6 and the thickened layer 18 are inserted and fixed, the rotating cover 5 is rotated to drive the wheel arm 14 to rotate, the wheel arm 14 drives the pulley 17 to move to the clamping block 12, the pulley 17 continues to move after contacting the top of the clamping block 12, extrudes the clamping block 12, and rolls on the smoothly arranged top of the clamping block 12, so as to extrude the clamping block 12 to move to the thickened layer 18 and insert the clamping block 12 into the clamping groove 13.

[0028] As shown in Figure 1 , a plurality of limiting grooves 3 are arranged on the outer side of the first flange 1, and a plurality of positioning rods 4 are fixedly connected to the connecting pipe 6 and are in sliding fit with the limiting grooves 3.

[0029] In the technical solution, the limiting grooves 3 and the positioning rods 4 are arranged, the positioning rods 4 are inserted into the limiting grooves 3 when the connecting pipe 6 and the thickened layer 18 are inserted, and the clamping groove 13 and the clamping block 12 are coincided.

[0030] As shown in Figure 2 , the extension plate 10 is fixedly connected to the outer side edge of the connecting pipe 6, and the extension plate 10 is fixedly connected to the rotating cover 5 through the bolt 9.

[0031] In the technical solution, the extension plate 10 is arranged, the extension plate 10 and the rotating cover 5 are fixed through the bolt 9 after the insertion of the clamping block 12 and the clamping groove 13, and the rotating cover 5 and the connecting pipe 6 are fixed.

[0032] Working principle: when disassembling, screw 9 is twisted and pulled out, then rotating cover 5 is rotated in the opposite direction, wheel frame arm 14 and pulley 17 are driven away from corresponding clamping block 12, and connecting buckle 16 on rotating cover 5 is driven to make circular motion, one end of pull rope 15 is pulled to make circular motion, through the limiting of through hole 8, the other end of pull rope 15 makes linear motion away from thickened layer 18, connecting buckle 16 on clamping block 12 is driven to move, then clamping block 12 is driven away from thickened layer 18, and is pulled out from clamping groove 13, so that first flange 1 and second flange 2 can be separated.

[0033] The above is only the preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belong to the protection scope of the technical scheme of the present application.

Claims

1. A quick-release duct flange connector, comprising a first flange (1) and a second flange (2), characterized in that: The first flange (1) has a thickened layer (18) near one edge. The second flange (2) has a connecting pipe (6) fixedly connected to one end. The connection between the connecting pipe (6) and the second flange (2) forms a step (7). The thickened layer (18) is inserted into the connecting pipe (6) and the step (7) is used to abut against the thickened layer (18). A rotating cover (5) is fitted on the outside of the connecting pipe (6). A locking block (12) is provided inside the rotating cover (5) and penetrates through the connecting pipe (6). Multiple locking blocks (12) are provided and arranged circumferentially around the center of the second flange (2). Multiple slots (13) for inserting into the locking blocks (12) are opened on the outside of the thickened layer (18). A pull rope (15) is provided between the locking block (12) and the rotating cover (5).

2. The quick-release connector for duct flanges according to claim 1, characterized in that: The card block (12) and the rotating cover (5) are fixedly connected to opposite sides by connecting buckles (16) with opposite positions, and the two ends of the pull rope (15) are respectively tied and fixed to the two connecting buckles (16) with opposite positions.

3. The quick-release connector for duct flanges according to claim 1, characterized in that: The rotating cover (5) is provided with a mounting bracket (11) fixedly connected to the connecting pipe (6) at the position corresponding to the locking block (12). The top surface of the mounting bracket (11) is provided with a through hole (8). The pull rope (15) passes through the through hole (8) and is connected to the mounting bracket (11). The axis of the through hole (8) is perpendicular to the top surface of the connecting buckle (16).

4. The quick-release connector for duct flanges according to claim 1, characterized in that: The top of the card block (12) is smoothly rounded, and multiple wheel bracket arms (14) are provided on the inner side of the rotating cover (5). One end of each wheel bracket arm (14) is rotatably connected to a pulley (17) for pressing the top of the card block (12).

5. The quick-release connector for duct flanges according to claim 1, characterized in that: The first flange (1) has multiple circumferentially arranged limiting grooves (3) on its outer side, and multiple positioning rods (4) that slide with the limiting grooves (3) are fixedly connected to the connecting pipe (6).

6. The quick-release joint for duct flanges according to claim 1, characterized in that: An extension plate (10) is fixedly connected to the outer edge of the connecting pipe (6), and the extension plate (10) is fixedly connected to the rotating cover (5) by bolts (9).

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