Quick-opening type access door for bag-type dust collector

Abstract

The utility model discloses a quick-opening access door for a bag-type dust remover, and relates to the technical field of bag-type dust removers. The upper side and the lower side of an access hole of the bag-type dust remover are provided with sliding rails which are parallel to the upper edge and the lower edge of the access hole, and the length of each sliding rail is larger than the width of the access hole; an access door capable of sliding along the sliding rails and used for shielding the access opening is arranged between the corresponding sliding rails, a clamping groove matched with the access opening is formed in the side, facing the access opening, of the access door, and a movable block matched with the inner diameter of the access opening is arranged in the clamping groove; a movable rod penetrating through the access door and used for pushing and pulling the movable block to be clamped into the access opening is arranged on the side, back on to the access opening, of the access door. According to the access door, the mode that a traditional access door needs to be fixed through a bolt or a locking piece is avoided, the access door which is opened and closed in a sliding mode is utilized, the movable block connected with the access door in a clamped mode is matched, stable and effective blocking and sealing of the access door can be achieved, and rapid opening and closing operation of the access opening is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag filters, in particular to a quick-opening maintenance door for a bag filter. Background Technique

[0002] A bag filter is a common industrial dust removal device used to remove dust and particulate matter generated during industrial production. It is suitable for capturing fine, dry, and non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the dust-containing gas is filtered by the filtering action of the fiber fabric. When the dust-containing gas enters the bag filter, dust with large particles and high specific gravity settles down due to the action of gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, and the gas is purified.

[0003] In order to ensure that the dust collector can effectively capture dust during operation, its maintenance opening usually needs to be sealed. Therefore, a maintenance door is installed on the maintenance opening of the bag filter. However, the existing maintenance doors still have the following deficiencies:

[0004] 1. Some maintenance doors on bag filters are fixed by multiple bolts during installation. This results in that when the maintenance door is opened and closed subsequently, the staff needs to repeatedly disassemble and assemble multiple bolts, making the opening and closing of the maintenance door very cumbersome and inconvenient.

[0005] 2. Some maintenance doors on bag filters are hinged to the maintenance opening through hinges. Although this installation method facilitates opening and closing, in order to ensure its sealing performance, a locking part often needs to be installed on the maintenance door. This not only makes the structure of the maintenance door relatively complex, but also during the long-term operation of the bag filter, the vibration of the machine is extremely likely to cause wear of the locking part, thereby affecting its sealing performance.

[0006] 3. Some existing maintenance doors and bag filters are of a split structure, resulting in that when opening and closing the maintenance door, the staff often needs to carry the maintenance door, which is time-consuming and laborious to operate.

[0007] Therefore, there is an urgent need for a quick-opening maintenance door that can overcome the above deficiencies. Summary of the Utility Model

[0008] In order to overcome the deficiencies in the background technique, the utility model discloses a quick-opening maintenance door for a bag filter. The utility model avoids the traditional way of fixing the maintenance door through bolts or locking parts, uses a sliding-opening and -closing maintenance door, and is paired with a movable block that is clamped to the maintenance door, which can not only achieve stable and effective plugging and sealing of the maintenance door, but also realize the quick opening and closing operation of the maintenance opening.

[0009] To achieve the above object, the utility model adopts the following technical scheme:

[0010] A quick-opening maintenance door for a bag filter, comprising a bag filter. On both the upper and lower sides of the maintenance opening of the bag filter, there are slide rails that are parallel to the upper and lower edges of the maintenance opening and have a length greater than the width of the maintenance opening. Between the corresponding slide rails, there is a maintenance door that can slide along the slide rails and is used to block the maintenance opening. On the side of the maintenance door facing the maintenance opening, there is a card slot adapted to the maintenance opening, and an active block adapted to the inner diameter of the maintenance opening is arranged in the card slot. On the side of the maintenance door facing away from the maintenance opening, there is an active rod that penetrates the maintenance door and is used to push and pull the active block into the maintenance opening.

[0011] Further, the depth of the card slot is adapted to the thickness of the active block, and the thickness of the active block is greater than the thickness of the maintenance opening.

[0012] Further, the moving distance of the active block is less than the depth of the card slot.

[0013] Further, a threaded hole penetrating the maintenance door is arranged in the middle of the maintenance door. The active rod is in threaded cooperation with the threaded hole. One end of the active rod facing the maintenance opening is rotatably connected to the active block, and the other end of the active rod is located outside the maintenance door and a turning handle is arranged at its end.

[0014] Further, a limiting mechanism for limiting and fixing the active rod is also arranged on the maintenance door.

[0015] Further, the limiting mechanism includes a limiting screw. On one side of the surface of the turning handle, there is a limiting screw hole penetrating the turning handle. On the outer surface of the maintenance door, there is a limiting hole corresponding to the limiting screw hole. A limiting screw with an end inserted and matched with the limiting hole is threadedly connected in the limiting screw hole.

[0016] Further, an annular groove is arranged on the side wall of the active block around the active block, and a sealing ring in interference fit with the inner wall of the maintenance opening is arranged in the annular groove.

[0017] Further, on one end of the side wall of the active block facing the maintenance opening, a reduced-diameter inclined surface is arranged around the active block.

[0018] Further, a groove is arranged on the side of the active block facing the maintenance door, and the end of the active rod is connected to the groove.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the slide rails, the traditional way of fixing the maintenance door by bolts or connecting it with hinges is avoided, and the convenient and quick sliding opening and closing of the maintenance door are realized;

[0020] By setting the maintenance door and the active block, the double-layer sealing protection of the maintenance opening is realized, and the sealing effect of the maintenance opening is greatly improved;

[0021] By limiting the thickness of the movable block and its moving distance, the movable block cannot completely separate from the slot on the inspection door when the inspection port is clamped and sealed, thus achieving the limit clamping of the inspection door to avoid accidental sliding of the inspection door, and blocking the movable block to prevent it from rotating, providing strong support for the subsequent push-pull operation of the movable block by the movable rod;

[0022] By setting a thread-driven movable rod, it is greatly convenient for the staff to push and pull the movable block, reducing the difficulty of operation for the staff;

[0023] By setting a limit mechanism, the movable rod can be fixed and limited to prevent the movable rod from rotating. At the same time, the movable block can be fixed and limited. The limit fixation of the movable block can also ensure the limit fixation of the inspection door, thereby avoiding the displacement of the inspection door and the movable block caused by the working vibration of the bag dust collector;

[0024] By setting the groove, the weight of the movable block can be greatly reduced, and the difficulty of pushing and pulling the movable block by the staff can be reduced;

[0025] By setting a sealing ring, the sealing effect of the movable block on the inspection port can be greatly increased;

[0026] By providing a reduced diameter inclined surface, when the movable block is pushed toward the inspection port, the reduced diameter inclined surface can guide the movable block, so that the movable block can be quickly and accurately inserted into the inspection port;

[0027] The utility model avoids the need for traditional inspection doors to be fixed by bolts or locks, and utilizes an inspection door that slides open and closed, and is matched with a movable block that is clamped with the inspection door, so that both the inspection door can be stably and effectively sealed and the inspection port can be quickly opened and closed, which greatly reduces the operating difficulty and operating steps of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the utility model in the door opening state;

[0029] Figure 2 This is a schematic diagram of the structure of the utility model in a closed state;

[0030] Figure 3 This is a schematic diagram of the structure of the inspection door of the utility model;

[0031] Figure 4 It is a schematic diagram of the structure of the movable block of the utility model.

[0032] In the figure: 1. Bag filter; 2. Slide rail; 3. Maintenance opening; 4. Movable block; 5. Maintenance door; 6. Movable rod; 7. Rotating handle; 8. Limiting mechanism; 9. Card slot; 10. Limiting hole; 11. Threaded hole; 12. Sealing ring; 13. Annular groove; 14. Groove; 15. Limiting screw; 16. Limiting threaded hole; 17. Rotating shaft; 18. Reduced diameter inclined surface. Specific implementation mode

[0033] The following will combine the drawings in the embodiments of the present invention to describe the technical solutions of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, they only correspond to the drawings of the present invention. For the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0034] Please refer to the attached drawings of the specification Figures 1-4 , the present invention provides a technical solution:

[0035] Embodiment 1, a quick-opening maintenance door for a bag filter, including a bag filter 1. Slide rails 2 parallel to the upper and lower edges of the maintenance opening 3 are provided on both the upper and lower sides of the maintenance opening 3 of the bag filter 1. A maintenance door 5 that can slide along the slide rails 2 and is used to block the maintenance opening 3 is provided between the corresponding slide rails 2. In order to ensure that the maintenance door 5 can smoothly block the maintenance opening 3 and completely expose the maintenance opening 3, the length of the slide rail 2 should be at least twice the width of the maintenance opening 3. When the maintenance door 5 slides to one end of the slide rail 2, the maintenance door 5 can just completely block the maintenance opening 3. When the maintenance door 5 slides to the other end of the slide rail 2, the maintenance opening 3 is just completely exposed. A card slot 9 adapted to the maintenance opening 3 is provided on the side of the maintenance door 5 facing the maintenance opening 3. A movable block 4 adapted to the inner diameter of the maintenance opening 3 is provided in the card slot 9. A movable rod 6 that penetrates the maintenance door 5 and is used to push and pull the movable block 4 into the maintenance opening 3 is provided on the side of the maintenance door 5 facing away from the maintenance opening 3. In order to ensure that the movable block 4 can effectively block and seal the maintenance opening 3, the depth of the card slot 9 is adapted to the thickness of the movable block 4. The thickness of the movable block 4 is greater than the thickness of the maintenance opening 3. An annular groove 13 is provided on the side wall of the movable block 4 around the movable block 4. A sealing ring 12 that is in interference fit with the inner wall of the maintenance opening 3 is provided in the annular groove 13;

[0036] When closing the inspection port 3, the staff pushes the inspection door 5 to slide to one end of the slide rail 2. At this time, the inspection door 5 just completely covers the inspection port 3. Then the staff pushes the movable block 4 toward the inspection port 3 through the movable rod 6 to make it snap into the inspection port 3. At this time, the movable block 4 and the sealing ring 12 can be used to perform interference blocking and sealing on the inspection port 3, and then cooperate with the inspection door 5 to cover the inspection port 3, thereby realizing double sealing protection for the inspection port 3. Conversely, when opening the inspection port 3, first pull the movable block 4 out of the inspection port 3 and immerse it in the card slot 9, and then push the inspection door 5 to slide to the other end of the slide rail 2.

[0037] Embodiment 2: In order to reduce the difficulty of operation for the staff, a threaded hole 11 penetrating the inspection door 5 is provided in the middle of the inspection door 5, and the movable rod 6 is threadedly matched with the threaded hole 11. One end of the movable rod 6 facing the inspection port 3 is rotatably connected with the movable block 4 through the rotating shaft 17. The other end of the movable rod 6 is located outside the inspection door 5, and a rotating handle 7 is provided at its end. In order to avoid the movable block 4 from rotating when the movable block 4 is driven to move, the moving distance of the movable block 4 is less than the groove depth of the card slot 9, that is, the moving distance of the movable rod 6 is less than the groove depth of the card slot 9;

[0038] When the movable block 4 is driven to move by rotating the movable rod 6, the movable block 4 cannot completely escape from the slot 9 on the inspection door 5, which provides strong support for the smooth movement of the movable block 4 and also realizes the limit blocking of the inspection door 5, avoiding accidental sliding of the inspection door 5.

[0039] Embodiment 3: During the operation of the bag-type dust collector, the vibration of the bag-type dust collector may cause the movable block 4 to loosen, affecting the sealing effect of the inspection port 3. In order to avoid the loosening of the movable block 4, the inspection door 5 is also provided with a limiting mechanism 8 for limiting and fixing the movable rod 6. Specifically, the limiting mechanism 8 includes a limiting screw 15, and a limiting screw hole 16 penetrating the turning handle 7 is provided on one side of the surface of the turning handle 7. A limiting hole 10 corresponding to the limiting screw hole 16 is provided on the outer surface of the inspection door 5. The limiting screw hole 16 is internally threadedly connected with a limiting screw 15 whose end is plugged into the limiting hole 10. By plugging the limiting screw 15 into the limiting hole 10, the movable rod 6 can be fixed and limited to prevent the movable rod 6 from rotating. At the same time, the movable block 4 is limited and fixed. The limiting fixation of the movable block 4 can also ensure the limiting fixation of the inspection door 5, thereby avoiding the displacement of the inspection door 5 and the movable block 4 due to the working vibration of the bag-type dust collector.

[0040] Embodiment 4. In order to reduce the operation difficulty of the staff, a groove 14 for reducing the weight of the movable block 4 is provided on the side of the movable block 4 facing the inspection door 5. The end of the movable rod 6 is connected to the groove 14. The setting of the groove 14 can greatly reduce the weight of the movable block 4. When pushing the movable block 4 to move, although the setting of the slide rail 2 can ensure that the inspection door 5 and the movable block 4 move to the position corresponding to the inspection opening 3, during the long-term use process, due to the wear of mechanical components, the movable block 4 is very likely to be slightly misaligned with the inspection opening 3, resulting in the movable block 4 being unable to accurately snap into the inspection opening 3. Therefore, a reduced-diameter inclined surface 18 surrounding the movable block 4 is provided at one end of the side wall of the movable block 4 facing the inspection opening 3. Even if the movable block 4 is not accurately aligned with the inspection opening 3, the reduced-diameter inclined surface 18 can be used to guide the movable block, so that the movable block can be quickly and accurately snapped into the inspection opening.

[0041] The parts not detailed in the present utility model are the prior art. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model; therefore, from any point of view, the above-mentioned embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model, and any reference signs in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A quick-opening inspection door for a bag dust collector, comprising a bag dust collector (1), characterized in that: The inspection opening (3) of the bag filter (1) is provided with slide rails (2) on both upper and lower sides thereof, which are parallel to the upper and lower edges of the inspection opening (3) and have a length greater than the width of the inspection opening (3); an inspection door (5) which can slide along the slide rails (2) and is used to block the inspection opening (3) is provided between the corresponding slide rails (2); a slot (9) which matches the inspection opening (3) is provided on the side of the inspection door (5) facing the inspection opening (3); a movable block (4) which matches the inner diameter of the inspection opening (3) is provided in the slot (9); and a movable rod (6) which penetrates the inspection door (5) and is used to push and pull the movable block (4) into the inspection opening (3) is provided on the side of the inspection door (5) facing away from the inspection opening (3).

2. The quick-opening inspection door for a bag filter according to claim 1 is characterized in that: The depth of the slot (9) matches the thickness of the movable block (4), and the thickness of the movable block (4) is greater than the thickness of the inspection opening (3).

3. The quick-opening inspection door for a bag filter according to claim 2 is characterized in that: The moving distance of the movable block (4) is smaller than the groove depth of the clamping groove (9).

4. The quick-opening inspection door for a bag filter according to claim 3 is characterized in that: A threaded hole (11) penetrating the inspection door (5) is provided in the middle of the inspection door (5); the movable rod (6) is threadably engaged with the threaded hole (11); one end of the movable rod (6) facing the inspection opening (3) is rotatably connected to the movable block (4); the other end of the movable rod (6) is located outside the inspection door (5) and a rotating handle (7) is provided at the end thereof.

5. The quick-opening inspection door for a bag filter according to claim 4 is characterized in that: The inspection door (5) is also provided with a limiting mechanism (8) for limiting and fixing the movable rod (6).

6. The quick-opening inspection door for a bag filter according to claim 5 is characterized in that: The limiting mechanism (8) comprises a limiting screw (15), a limiting screw hole (16) penetrating the turning handle (7) is provided on one side of the surface of the turning handle (7), a limiting hole (10) corresponding to the limiting screw hole (16) is provided on the outer surface of the inspection door (5), and a limiting screw (15) having an end portion plugged into and mating with the limiting hole (10) is connected to the inner thread of the limiting screw hole (16).

7. The quick-opening inspection door for a bag filter according to claim 1 is characterized in that: An annular groove (13) arranged around the movable block (4) is provided on the side wall of the movable block (4), and a sealing ring (12) which is interference-fitted with the inner wall of the inspection opening (3) is provided in the annular groove (13).

8. The quick-opening inspection door for a bag filter according to claim 1 is characterized in that: One end of the side wall of the movable block (4) facing the inspection opening (3) is provided with a diameter-reducing inclined surface (18) arranged around the movable block (4).

9. The quick-opening inspection door for a bag filter according to claim 1 is characterized in that: A groove (14) is provided on one side of the movable block (4) facing the inspection door (5), and an end of the movable rod (6) is connected to the groove (14).

Images