Adjustable air pipe flange

Abstract

The application discloses a kind of adjustable air pipe flanges, including outer tube, the bottom end of the outer tube is connected with outer plate, the sidewall of the outer plate is provided with a plurality of round holes, the round hole is threadedly connected with limiting rod, the sidewall of the outer tube is provided with placing mechanism, the placing mechanism is installed with connecting mechanism, the outer tube is installed with adjusting mechanism, the sidewall of the outer tube is inserted with protection mechanism;Two outer plates are opposite and pasted, and are provided with sealing strip, to ensure that the connecting portion of outer plate is not gas leakage, and is fixed with limiting rod, so that two outer tubes are placed opposite, to make two placing mechanisms respectively connect the connecting mechanism at both ends, so that welding is not needed, to avoid damaging air pipe, the spacing between two air pipes can be adjusted using connecting mechanism, so that two air pipes are better connected, adjusting mechanism can be used to adjust connecting mechanism, to facilitate placing air pipe, protection mechanism is used to place dust accumulated in adjusting mechanism.

Description

Technical Field

[0001] This invention relates to the field of duct flanges, and in particular to an adjustable duct flange. Background Technology

[0002] Air ducts are piping systems used for air transport and distribution. There are two types: composite ducts and inorganic ducts. Stainless steel duct fabrication involves applying sealant to seams, rivet joints, and the four corners of flanges. Before applying sealant, surface dust and oil should be removed. Based on cross-sectional shape, air ducts can be divided into various types, such as circular ducts, rectangular ducts, and flat oval ducts. Circular ducts have the lowest resistance but the largest height and are more complex to manufacture.

[0003] A flange, also called a flange disc or flange, is a part used to connect shafts, for connecting pipe ends; flanges are also used on equipment inlets and outlets to connect two pieces of equipment, such as speed reducer flanges.

[0004] Currently, the ductwork connected by flanges at the closure point of ships cannot be installed due to misalignment, requiring the closure ductwork to be remade, resulting in material waste and increased costs. The conventional method for closure ductwork is sleeve connection, which requires welding. Welding damages the paint inside the ductwork. Therefore, it is necessary to install an adjustable duct flange that can accommodate the connection length of the two ductwork ends, while avoiding the use of welding for connection. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable duct flange that avoids damaging the paint inside the duct.

[0006] The technical solution to achieve the above objective is: an adjustable duct flange, including an outer pipe, an outer plate connected to the bottom end of the outer pipe, a plurality of circular holes opened on the side wall of the outer plate, a limit rod connected to the internal thread of the circular holes, a placement mechanism opened on the side wall of the outer pipe, a connecting mechanism installed in the placement mechanism, an adjustment mechanism installed on the outer pipe, a protective mechanism inserted on the side wall of the outer pipe, and the adjustment mechanism located inside the protective mechanism.

[0007] Preferably, the placement mechanism includes a placement groove, a placement plate, springs, and through holes. The top end of the outer tube has a placement groove, the bottom end of the placement groove is connected to multiple springs, one end of each spring is connected to the bottom end of the placement plate, and through holes are provided on all four sides of the placement groove.

[0008] Preferably, the through hole is rectangular in shape, and the placement plate and the placement groove are both U-shaped.

[0009] Preferably, the connecting mechanism includes a duct body, a screw hole, a screw, a connecting block, and a sliding groove. The duct body is placed on the top of the placement plate. The side wall of the duct body is provided with a screw hole. The side wall of the connecting block is movably connected to the screw. Both ends of the connecting block are inserted into the sliding groove. The side wall of the screw passes through the through hole and is threadedly connected to the screw hole.

[0010] Preferably, the connecting block is U-shaped.

[0011] Preferably, the adjusting mechanism includes a support plate, a connecting ring, a base plate, a screw, a limiting block, a guide plate, a guide rod, a rotating rod, and a screw tube. Two symmetrically distributed support plates are connected to the four sides of the outer tube. Multiple guide rods are connected to the side walls of the support plates. A connecting ring is slidably connected to the side walls of the guide rods. Two symmetrically distributed guide plates are connected to the inner side walls of the connecting ring. Two limiting blocks are slidably connected to the side walls of the guide plates. A rotating rod is rotatably connected to the top of the connecting ring. The side wall of the rotating rod is threadedly connected to one of the support plates. Two symmetrically distributed base plates are connected to the side walls of the connecting ring. A screw is connected to the side walls of the base plates. A screw tube is rotatably connected to the side walls of the limiting blocks, and the screw tube is threadedly connected to the screw.

[0012] Preferably, the through hole is located between the two support plates, the height of the support plates is greater than the maximum height of the limiting block, and the limiting block is L-shaped.

[0013] Preferably, the protective mechanism includes slots, a protective box, and a sealing door. The outer tube has multiple slots on its side wall, and a protective box is inserted into each slot. The protective box is rotatably connected to the side wall of the protective box, and the adjustment mechanism is located inside the protective box.

[0014] The beneficial effects of this invention are:

[0015] 1) Place the two outer panels facing each other and install a sealing strip to ensure that the connection between the outer panels is airtight. Fix them with a limiting rod so that the two outer tubes are placed facing each other. This allows the two placement mechanisms to connect to the connection mechanisms at both ends, eliminating the need for welding and avoiding damage to the air ducts. The connection mechanism can be used to adjust the distance between the two air ducts for better connection. The adjustment mechanism can be used to adjust the connection mechanism for easy placement of the air ducts. The protective mechanism is used to prevent dust from accumulating inside the adjustment mechanism.

[0016] 2) Insert one end of the duct body into the placement groove and press the duct body downwards against the placement plate. The placement plate then presses down against the spring, thereby adjusting the distance between the two duct bodies used for connection. This prevents the length of the outer pipe from being mismatched with the distance between the two duct bodies, thus improving the applicability of the outer pipe installation. At the same time, the screw hole moves to the inside of the through hole, the screw is inserted and passes through the connecting block, the connecting block is inserted into the sliding groove, and then the screw is screwed into the screw hole, so that the screw passes through the through hole, thereby ensuring that the duct body will not come off the placement groove.

[0017] 3) After inserting the connecting block into the slide groove, screw the screw into the screw hole. After the screw passes through the through hole, rotate the rotating rod to move the connecting ring from above the support plate to below the support plate. The connecting ring drives the guide plate to move downward, and the guide plate drives the limiting block to move downward, so that the limiting block is flush with the connecting block. At this time, rotate the screw tube to move the two limiting blocks and clamp the connecting block, thereby fixing the connecting block. Then, fix the duct body with screws to avoid the duct body shaking when the other duct body is installed in the placement groove, which would require pressing the length of the duct body into the placement groove again. The movable distance of the connecting block can be controlled by adjusting the distance between the two limiting blocks to adapt to the need to adjust the movement distance of the duct body and the outer pipe. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is an exploded structural diagram of the present invention;

[0020] Figure 3 This is a cross-sectional exploded top view of the structure of the present invention;

[0021] Figure 4 This is a cross-sectional structural schematic diagram of the present invention;

[0022] Figure 5 This is a top view schematic diagram of the adjustment mechanism of the present invention;

[0023] Figure 6 This is a bottom view schematic diagram of the adjustment mechanism of the present invention;

[0024] Figure 7 yes Figure 3 Enlarged structural diagram at point A;

[0025] Figure 8 yes Figure 3 Enlarged structural diagram at point B;

[0026] Figure 9 yes Figure 4 Enlarged structural diagram at point C;

[0027] Figure 10yes Figure 9 A magnified structural diagram at point D.

[0028] Icon labels:

[0029] 1. Outer tube; 2. Outer plate; 3. Round hole; 4. Limiting rod; 5. Placement mechanism; 501. Placement slot; 502. Placement plate; 503. Spring; 504. Through hole; 6. Connecting mechanism; 601. Air duct body; 602. Screw hole; 603. Screw; 604. Connecting block; 605. Slide groove; 7. Adjustment mechanism; 701. Support plate; 702. Linkage; 703. Base plate; 704. Screw; 705. Limiting block; 706. Guide plate; 707. Guide rod; 708. Rotating rod; 709. Screw tube; 8. Protective mechanism; 801. Slot; 802. Protective box; 803. Sealing door. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Reference Appendix Figure 1-10 An adjustable duct flange includes an outer pipe 1, an outer plate 2 connected to the bottom end of the outer pipe 1, a plurality of round holes 3 opened on the side wall of the outer plate 2, a limit rod 4 connected to the internal thread of the round holes 3, a placement mechanism 5 opened on the side wall of the outer pipe 1, a connecting mechanism 6 installed in the placement mechanism 5, an adjustment mechanism 7 installed on the outer pipe 1, a protective mechanism 8 inserted on the side wall of the outer pipe 1, and the adjustment mechanism 7 located inside the protective mechanism 8.

[0033] Two outer panels 2 are attached to each other and sealed with a sealing strip to ensure that the connection between the outer panels 2 is airtight. They are fixed with a limiting rod 4 so that the two outer tubes 1 are placed facing each other. This allows the two placement mechanisms 5 to be connected to the connection mechanisms 6 at both ends, thus eliminating the need for welding and avoiding damage to the air ducts. The distance between the two air ducts can be adjusted using the connection mechanism 6 for better connection. The adjustment mechanism 7 can be used to adjust the connection mechanism 6 for easy placement of the air ducts. The protective mechanism 8 is used to prevent dust from accumulating inside the adjustment mechanism 7.

[0034] Reference Appendix Figure 1-4 The placement mechanism 5 includes a placement groove 501, a placement plate 502, a spring 503, and a through hole 504. The top of the outer tube 1 is provided with a placement groove 501. Multiple springs 503 are connected to the bottom of the placement groove 501. One end of the spring 503 is connected to the bottom of the placement plate 502. Through holes 504 are provided on all four sides of the placement groove 501. The through holes 504 are rectangular in shape. The placement plate 502 and the placement groove 501 are both U-shaped.

[0035] Reference Appendix Figure 1-8 The connecting mechanism 6 includes a duct body 601, a screw hole 602, a screw 603, a connecting block 604, and a sliding groove 605. The duct body 601 is placed on the top of the placement plate 502. The side wall of the duct body 601 is provided with a screw hole 602. The side wall of the connecting block 604 is movably connected to the screw 603. The connecting block 604 is U-shaped. Both ends of the connecting block 604 are inserted into the sliding groove 605. The side wall of the screw 603 passes through the through hole 504 and is threadedly connected to the screw hole 602.

[0036] One end of the duct body 601 is inserted into the placement groove 501, and the duct body 601 is pressed down to push the placement plate 502. The placement plate 502 presses down to push the spring 503, thereby adjusting the distance between the two duct bodies 601 used for connection. This avoids the length of the outer tube 1 being incompatible with the distance between the two duct bodies 601, thus improving the applicability of the installation of the outer tube 1. At the same time, the screw hole 602 moves to the inside of the through hole 504, and the screw 603 is inserted into and passes through the connecting block 604. The connecting block 604 is inserted into the sliding groove 605, and then the screw 603 is screwed into the screw hole 602, so that the screw 603 passes through the through hole 504, thereby ensuring that the duct body 601 will not come off the placement groove 501.

[0037] Reference Appendix Figure 5-10The adjusting mechanism 7 includes a support plate 701, a connecting ring 702, a base plate 703, a screw 704, a limiting block 705, a guide plate 706, a guide rod 707, a rotating rod 708, and a solenoid 709. Two symmetrically distributed support plates 701 are connected to the four sides of the outer tube 1. Multiple guide rods 707 are connected to the side walls of the support plates 701. A connecting ring 702 is slidably connected to the side walls of the guide rods 707. Two symmetrically distributed guide plates 706 are connected to the inner side walls of the connecting ring 702. Two limiting blocks are slidably connected to the side walls of the guide plates 706. 705, the top of the link 702 is rotatably connected to a rotating rod 708, the side wall of the rotating rod 708 is threadedly connected to one of the support plates 701, the side wall of the link 702 is connected to two symmetrically distributed base plates 703, the side wall of the base plate 703 is connected to a screw rod 704, the side wall of the limiting block 705 is rotatably connected to a threaded tube 709, the threaded tube 709 is threadedly connected to the screw rod 704, the through hole 504 is located in the gap between the two support plates 701, the height of the support plate 701 is greater than the maximum height of the limiting block 705, and the limiting block 705 is L-shaped.

[0038] After inserting the connecting block 604 into the sliding groove 605, screw 603 into the screw hole 602, allowing the screw 603 to pass through the through hole 504, rotate the rotating rod 708 to move the connecting ring 702 from above the support plate 701 to below the support plate 701. The connecting ring 702 drives the guide plate 706 to move downwards, and the guide plate 706 drives the limiting block 705 to move downwards, so that the limiting block 705 is flush with the connecting block 604. At this time, rotate the screw tube 709 to move the two limiting blocks 705, and... The connecting block 604 is clamped to fix it, and then the duct body 601 is fixed by the screw 603. This prevents the installed duct body 601 from shaking when the other duct body 601 is installed into the placement groove 501, which would require pressing the duct body 601 to extend into the placement groove 501 again. The movable distance of the connecting block 604 is controlled by adjusting the distance between the two limiting blocks 705 to adapt to the need to adjust the movement distance between the duct body 601 and the outer pipe 1.

[0039] Reference Appendix Figure 8-9 The protective mechanism 8 includes a slot 801, a protective box 802, and a sealing door 803. Multiple slots 801 are provided on the side wall of the outer tube 1. The protective box 802 is inserted and connected in the slot 801. The sealing door 803 is rotatably connected to the side wall of the protective box 802. The adjustment mechanism 7 is located inside the protective box 802.

[0040] The protective box 802 and the sealing door 803 can prevent dust from accumulating on the adjustment mechanism 7.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable duct flange, comprising an outer pipe (1), characterized in that, The bottom end of the outer tube (1) is connected to an outer plate (2). The side wall of the outer plate (2) is provided with multiple round holes (3). The round holes (3) are internally threaded with limit rods (4). The side wall of the outer tube (1) is provided with a placement mechanism (5). The placement mechanism (5) is installed with a connecting mechanism (6). The outer tube (1) is provided with an adjustment mechanism (7). The side wall of the outer tube (1) is provided with a protective mechanism (8). The adjustment mechanism (7) is located inside the protective mechanism (8). The placement mechanism (5) includes a placement groove (501), a placement plate (502), a spring (503), and a through hole (504). The top end of the outer tube (1) is provided with a placement groove (501). The bottom end of the placement groove (501) is connected to a plurality of springs (503). One end of the spring (503) is connected to the bottom end of the placement plate (502). The four sides of the placement groove (501) are provided with through holes (504). The connecting mechanism (6) includes a duct body (601), a screw hole (602), a screw (603), a connecting block (604), and a sliding groove (605). The duct body (601) is placed on the top of the placement plate (502). The side wall of the duct body (601) is provided with a screw hole (602). The side wall of the connecting block (604) is movably connected to the screw (603). The two ends of the connecting block (604) are inserted into the sliding groove (605). The side wall of the screw (603) passes through the through hole (504). The side wall of the screw (603) is threadedly connected to the screw hole (602). The adjusting mechanism (7) includes a support plate (701), a connecting ring (702), a base plate (703), a screw (704), a limiting block (705), a guide plate (706), a guide rod (707), a rotating rod (708), and a solenoid (709). Two symmetrically distributed support plates (701) are connected to the four sides of the outer tube (1). Multiple guide rods (707) are connected to the side walls of the support plates (701). A connecting ring (702) is slidably connected to the side walls of the guide rods (707). Two symmetrically distributed connecting rings are connected to the inner side walls of the connecting rings (702). The guide plate (706) has two limiting blocks (705) slidably connected to its side wall. The top of the ring (702) is rotatably connected to a rotating rod (708). The side wall of the rotating rod (708) is threadedly connected to one of the support plates (701). The side wall of the ring (702) is connected to two symmetrically distributed base plates (703). The side wall of the base plate (703) is connected to a screw rod (704). The side wall of the limiting block (705) is rotatably connected to a screw tube (709). The screw tube (709) is threadedly connected to the screw rod (704).

2. The adjustable duct flange according to claim 1, characterized in that, The through hole (504) is rectangular in shape, and the placement plate (502) and the placement groove (501) are both square in shape.

3. An adjustable duct flange according to claim 1, characterized in that, The connecting block (604) is U-shaped.

4. An adjustable duct flange according to claim 1, characterized in that, The through hole (504) is located in the space between the two support plates (701), the height of the support plate (701) is greater than the maximum height of the limiting block (705), and the limiting block (705) is L-shaped.

5. An adjustable duct flange according to claim 1, characterized in that, The protective mechanism (8) includes a slot (801), a protective box (802) and a sealing door (803). The outer tube (1) has multiple slots (801) on its side wall. The protective box (802) is inserted into the slot (801) and connected to it. The sealing door (803) is rotatably connected to the side wall of the protective box (802). The adjustment mechanism (7) is located inside the protective box (802).

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