Flue plug door seal mechanism

Abstract

This utility model relates to the field of flue door technology, specifically a flue door sealing mechanism, comprising: a door frame, guide wheels, a door panel, and a fixed pulley; guide wheels are rotatably connected to the front and rear parts of the inner wall of the door frame via brackets, the door panel abuts against the guide wheels, and a fixed pulley abuts against one side of the door panel. The fixed pulley is bolted to one side of the inner wall of the door frame, and a sealing assembly is connected to the other side of the inner wall of the door frame, with a driving mechanism connected to the top of the door frame; the sealing assembly includes a mounting bracket connected to one side of the inner wall of the door frame via screws, and a mounting frame connected to one side of the mounting bracket via screws, with a sealing strip engaged within the mounting frame. This flue door sealing mechanism, by lowering and resetting the door panel, and then extending the opening cylinder and the compression cylinder, presses the door panel against the sealing strip for sealing, preventing gaps and thus enhancing the sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of flue door technology, specifically a flue door sealing mechanism. Background Technology

[0002] A flue gate is a device used in flue systems, primarily for controlling and regulating the flow of flue gas. It is typically installed at the inlet or outlet of the flue and can open or close the flue passage as needed. However, existing flue gate sealing mechanisms have certain shortcomings in use, such as:

[0003] Existing flue door panels typically control the opening and closing of the flue by moving the door panel up and down within the door frame. However, after prolonged use, the sealing strips between the door frames can wear down, creating gaps and affecting the sealing effect. Utility Model Content

[0004] The purpose of this utility model is to provide a flue gas duct door sealing mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas duct door sealing mechanism, comprising: a door frame, a guide wheel, a door panel, and a fixed pulley;

[0006] The front and rear parts of the inner wall of the door frame are rotatably connected to the guide wheels by brackets. The guide wheels abut against the door panel. One side of the door panel abuts against the fixed pulley. The fixed pulley is bolted to one side of the inner wall of the door frame. The other side of the inner wall of the door frame is connected to a sealing assembly, and a drive mechanism is connected to the top of the door frame.

[0007] The sealing assembly includes a mounting bracket connected to one side of the inner wall of the door frame by screws, and a mounting frame connected to one side of the mounting bracket by screws, with a sealing strip engaged inside the mounting frame.

[0008] Preferably, a compression cylinder is connected through the inner wall of the door frame away from the mounting bracket.

[0009] Preferably, a sealing sleeve is connected through the inner wall of the door frame away from the mounting bracket, and a crossbar is slidably connected inside the sealing sleeve. A movable pulley is bolted to one side of the crossbar, and the movable pulley abuts against one side of the door panel.

[0010] Preferably, the end of the crossbar away from the movable pulley is bolted to a connecting plate, and one side of the connecting plate is screwed to a top-opening cylinder, which is connected through to one side of the inner wall of the door frame.

[0011] Preferably, the driving mechanism includes a hanger bolted to the upper surface of the door frame, two sets of upright plates bolted to the lower part of the hanger, both sets of upright plates bolted to the upper surface of the door frame, and a geared motor connected to one side of the upright plate via a motor mount. The output end of the geared motor passes through the inner wall of the upright plate and is bolted to a reel, which rotates through the inner wall of the upright plate.

[0012] Preferably, a pull rope is wound on the reel, and the other end of the pull rope is connected to the door panel.

[0013] Preferably, a sliding rod is connected through the two sets of uprights away from the bottom of the reel, and a guide block is slidably connected to the sliding rod, the guide block being sleeved on the pull rope.

[0014] Preferably, a servo motor is connected to the side of the upright plate away from the geared motor via a motor mount. The output end of the servo motor passes through the inner wall of the upright plate and is connected to a threaded rod by bolts. The threaded rod rotates through the inner wall of the upright plate and is threadedly connected to the guide block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By shortening the compression cylinder to move away from the door panel, shortening the opening cylinder to allow the movable pulley to move the door panel away from the sealing strip, opening the flue on the door panel, and moving the door panel down to reset, the opening cylinder and compression cylinder are extended to press the door panel onto the sealing strip for sealing, thereby enhancing the sealing effect;

[0017] 2. By starting the geared motor and servo motor, the pull rope is evenly wound onto the reel, moving the door panel up and down to open or close the flue. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the door frame of this utility model;

[0020] Figure 3 This is a side view cross-sectional diagram of the door frame structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the door frame of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the sealing sleeve of this utility model;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the reel of this utility model;

[0024] Figure 7This is an enlarged view of the structure of part A of this utility model.

[0025] In the diagram: 1. Door frame; 2. Guide wheel; 3. Door panel; 4. Fixed pulley; 5. Sealing assembly; 501. Mounting bracket; 502. Mounting frame; 503. Sealing strip; 504. Extrusion cylinder; 505. Sealing sleeve; 506. Crossbar; 507. Movable pulley; 508. Connecting plate; 509. Top-opening cylinder; 6. Drive mechanism; 601. Hanger; 602. Vertical plate; 603. Gear motor; 604. Reel; 605. Pull rope; 606. Slide rod; 607. Guide block; 608. Servo motor; 609. Threaded rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a flue door sealing mechanism, including: a door frame 1, a guide wheel 2, a door panel 3, and a fixed pulley 4; the front and rear parts of the inner wall of the door frame 1 are rotatably connected to the guide wheel 2 by a bracket, the guide wheel 2 abuts against the door panel 3, one side of the door panel 3 abuts against the fixed pulley 4, the fixed pulley 4 is bolted to one side of the inner wall of the door frame 1, the other side of the inner wall of the door frame 1 is connected to a sealing component 5, and a driving mechanism 6 is connected to the top of the door frame 1;

[0028] The flue door sealing mechanism, when the door panel 3 moves up and down, drives the guide wheel 2 and the fixed pulley 4 to rotate, reducing friction and allowing the door panel 3 to move smoothly.

[0029] exist Figures 3-5 and Figure 7 In the middle, the sealing component 5 includes a mounting bracket 501 connected to one side of the inner wall of the door frame 1 by screws, a mounting frame 502 connected to one side of the mounting bracket 501 by screws, and a sealing strip 503 being engaged in the mounting frame 502.

[0030] The flue gas duct door sealing mechanism has a mounting bracket 501 that forms the mounting frame 502. The mounting frame 502 is made of stainless steel, and the sealing strip 503 is made of fluororubber. The sealing strip 503 can be pulled out from the gap of the mounting frame 502 and can be replaced when the sealing strip 503 ages.

[0031] exist Figure 3In the middle, a compression cylinder 504 is connected through the inner wall of the door frame 1 away from the mounting bracket 501.

[0032] When the door panel 3 moves to the bottom of the door frame 1, the compression cylinder 504 is activated to push the door panel 3 to move, pressing the door panel 3 onto the sealing strip 503 to enhance the sealing effect.

[0033] exist Figures 3-5 In the middle, a sealing sleeve 505 is connected through the inner wall of the door frame 1 away from the mounting bracket 501. A crossbar 506 is slidably connected inside the sealing sleeve 505. A movable pulley 507 is bolted to one side of the crossbar 506 and abuts against one side of the door panel 3.

[0034] The flue door sealing mechanism uses a sealing sleeve 505 to seal the gap between the crossbar 506 and the hole in the door frame 1. Pushing the crossbar 506 causes the movable pulley 507 to move, and the movable pulley 507 removes the door panel 3 from the sealing strip 503, preventing the door panel 3 from wearing the sealing strip 503 when it moves up and down, thus improving its service life.

[0035] exist Figures 2-5 In the middle, the end of the crossbar 506 away from the movable pulley 507 is connected to the connecting plate 508 by bolts, and one side of the connecting plate 508 is connected to the opening cylinder 509 by screws. The opening cylinder 509 is connected through to one side of the inner wall of the door frame 1.

[0036] The flue door sealing mechanism activates the top-opening cylinder 509 to push the connecting plate 508 to move, and the connecting plate 508 together drives multiple sets of crossbars 506 to move synchronously.

[0037] exist Figure 1 , Figure 2 and Figure 6 In the drive mechanism 6, there is a hanger 601 bolted to the upper surface of the door frame 1. Two sets of upright plates 602 are bolted to the lower part of the hanger 601. Both sets of upright plates 602 are bolted to the upper surface of the door frame 1. A geared motor 603 is connected to one side of the upright plate 602 via a motor mount. The output end of the geared motor 603 passes through the inner wall of the upright plate 602 and is bolted to a reel 604. The reel 604 rotates through the inner wall of the upright plate 602.

[0038] The flue door sealing mechanism starts the geared motor 603 to drive the reel 604 to rotate, and the reel 604 winds up and unwinds the pull rope 605 as it rotates.

[0039] exist Figure 6 In the middle, a pull rope 605 is wound on the reel 604, and the other end of the pull rope 605 is connected to the door panel 3.

[0040] When the reel 604 is winding up, the door panel 3 is pulled upward by the pull rope 605 to open the flue. When the reel 604 is unwinding, the weight of the door panel 3 causes it to automatically move down and reset, closing the flue.

[0041] exist Figure 6 In the middle, a sliding rod 606 is connected between two sets of upright plates 602 that are far below the reel 604. A guide block 607 is slidably connected on the sliding rod 606 and is sleeved on the pull rope 605.

[0042] When the guide block 607 slides back and forth along the slide bar 606, the pull rope 605 is evenly wound around the reel 604.

[0043] exist Figure 6 In the middle, on the side of the vertical plate 602 away from the geared motor 603, a servo motor 608 is connected to the motor mount. The output end of the servo motor 608 passes through the inner wall of the vertical plate 602 and is connected to a threaded rod 609 by bolts. The threaded rod 609 passes through and rotates on the inner wall of the vertical plate 602, and the threaded rod 609 is threadedly connected to the guide block 607.

[0044] The flue door sealing mechanism starts the servo motor 608 to rotate alternately in both directions, which drives the threaded rod 609 to rotate back and forth, thereby driving the guide block 607 to slide back and forth on the slide rod 606.

[0045] In summary: When using this flue door sealing mechanism, firstly, install the door frame 1 on the flue, connect the control circuit, shorten the compression cylinder 504 and the opening cylinder 509, then start the reduction motor 603 to wind up, move the door panel 3 upward, open the flue, start the reduction motor 603 to unwind, reset downward, then extend the compression cylinder 504 and the opening cylinder 509, pressing the door panel 3 against the sealing strip 503 for sealing. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. The flue gas duct door sealing mechanism includes: Door frame (1), guide wheel (2), door panel (3), and fixed pulley (4), Its characteristics are: The front and rear parts of the inner wall of the door frame (1) are rotatably connected to guide wheels (2) by brackets. The guide wheels (2) abut against the door panel (3). One side of the door panel (3) abuts against a fixed pulley (4). The fixed pulley (4) is bolted to one side of the inner wall of the door frame (1). The other side of the inner wall of the door frame (1) is connected to a sealing assembly (5). A drive mechanism (6) is connected to the top of the door frame (1). The sealing assembly (5) includes a mounting bracket (501) connected to one side of the inner wall of the door frame (1) by screws, and a mounting frame (502) connected to one side of the mounting bracket (501) by screws, and a sealing strip (503) is engaged in the mounting frame (502).

2. The flue gas duct door sealing mechanism according to claim 1, characterized in that: A compression cylinder (504) is connected through the inner wall of the door frame (1) away from the mounting bracket (501).

3. The flue gas duct door sealing mechanism according to claim 1, characterized in that: A sealing sleeve (505) is connected through the inner wall of the door frame (1) away from the mounting bracket (501). A crossbar (506) is slidably connected inside the sealing sleeve (505). A movable pulley (507) is bolted to one side of the crossbar (506). The movable pulley (507) abuts against one side of the door panel (3).

4. The flue gas duct door sealing mechanism according to claim 3, characterized in that: The end of the crossbar (506) away from the movable pulley (507) is connected to a connecting plate (508) by bolts. One side of the connecting plate (508) is connected to a top-opening cylinder (509) by screws. The top-opening cylinder (509) is connected through to one side of the inner wall of the door frame (1).

5. The flue gas duct door sealing mechanism according to claim 1, characterized in that: The drive mechanism (6) includes a hanger (601) bolted to the upper surface of the door frame (1). Two sets of upright plates (602) are bolted to the bottom of the hanger (601). Both sets of upright plates (602) are bolted to the upper surface of the door frame (1). A geared motor (603) is connected to one side of the upright plate (602) via a motor mount. The output end of the geared motor (603) passes through the inner wall of the upright plate (602) and is bolted to a reel (604). The reel (604) rotates through the inner wall of the upright plate (602).

6. The flue gas duct door sealing mechanism according to claim 5, characterized in that: A pull rope (605) is wound on the reel (604), and the other end of the pull rope (605) is connected to the door panel (3).

7. The flue gas duct door sealing mechanism according to claim 6, characterized in that: A slide rod (606) is connected through the two sets of upright plates (602) located away from the reel (604). A guide block (607) is slidably connected on the slide rod (606) and is sleeved on the pull rope (605).

8. The flue gas duct door sealing mechanism according to claim 7, characterized in that: A servo motor (608) is connected to the side of the upright plate (602) away from the geared motor (603) via a motor mount. The output end of the servo motor (608) passes through the inner wall of the upright plate (602) and is connected to a threaded rod (609) by bolts. The threaded rod (609) rotates through the inner wall of the upright plate (602) and is threadedly connected to the guide block (607).

Images