A detachable maintenance door structure for a negative pressure large bag filter dust collector
By introducing limit blocks and casters into the bag filter, the problems of difficult operation and safety hazards during the disassembly of the maintenance door are solved, and the stable sliding and sealing performance of the maintenance door are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SENZE ENVIRONMENTAL PROTECTION ENG TECH
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-30
AI Technical Summary
The existing baghouse dust collectors lack effective limiting mechanisms during disassembly, which increases the difficulty of single-person operation and poses safety hazards.
Design a detachable maintenance door structure including a limiting block, a sliding groove, and casters. The limiting groove effectively limits the maintenance door, and the sliding groove and casters enable the maintenance door to slide smoothly, replacing manual support and enhancing operational safety.
This reduces the difficulty of single-person operation, avoids the door suddenly flipping and hitting maintenance personnel, improves operational safety and convenience, and ensures the stability and sealing of the maintenance process.
Smart Images
Figure CN224422250U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bag dust collectors, and in particular relates to a detachable maintenance door structure for a negative pressure large bag dust collector. Background Technology
[0002] In the field of industrial dust removal, negative pressure bag filters are widely used in industries such as metallurgy, building materials, and chemicals due to their high dust filtration efficiency. Their core filter element, the filter bag, needs to be regularly inspected or replaced to maintain dust removal efficiency.
[0003] The side access door of the middle chamber of the existing bag filter is installed at a high position and lacks an effective limiting mechanism during disassembly. It requires manual support to prevent the door from suddenly flipping outward or inward after the fasteners are removed. This increases the difficulty of single-person operation and poses a safety hazard of the door hitting the maintenance personnel. Utility Model Content
[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a detachable maintenance door structure for a negative pressure large bag dust collector. The maintenance door is effectively limited by the limiting groove of the limiting block, replacing manual support, reducing the difficulty of single-person operation, preventing the door from suddenly flipping and hitting maintenance personnel, improving operational safety, and using a sliding groove to slide the maintenance door away from the maintenance opening, thus facilitating maintenance through the maintenance opening.
[0005] In view of this, the present invention provides a detachable maintenance door structure for a negative pressure large bag filter dust collector, comprising:
[0006] The main body of the bag filter;
[0007] The maintenance mechanism is used for inspecting and repairing the filter bags inside the body of the bag filter dust collector, and the maintenance mechanism includes:
[0008] The inspection port is located on the side of the middle chamber of the bag filter body;
[0009] Two limiting blocks are fixed to the bag filter body on the upper and lower sides of the inspection port, respectively. Each of the two limiting blocks has a limiting groove and a sliding groove at its opposite ends, and the sliding groove is connected to the limiting groove.
[0010] The access door slides between two limit grooves and is aligned with the access port.
[0011] Four first fixing bolts are respectively rotated through two limit blocks and abut against the inspection door, and the first fixing bolts are threadedly connected to the limit blocks.
[0012] In this technical solution, the limiting groove of the limiting block effectively limits the maintenance door, replacing manual support, reducing the difficulty of single-person operation, preventing the door from suddenly flipping and hitting maintenance personnel, improving operational safety, and in conjunction with the sliding groove, the maintenance door is slid away from the maintenance opening, thus facilitating maintenance through the maintenance opening.
[0013] Furthermore, casters are installed on both the upper and lower ends of the inspection door, and the casters at the upper and lower ends of the inspection door abut against the inner cavities of the two limiting grooves respectively.
[0014] In this technical solution, the use of casters reduces friction between the inspection door and the limit groove and slide, making the inspection door slide more smoothly, facilitating the movement and positioning of the door, and further simplifying the operation process.
[0015] Furthermore, a sealing block is fixedly connected to one end of the inspection door near the inspection opening, and rubber sealing gaskets are fixedly connected to all four sides of the sealing block.
[0016] In this technical solution, the sealing block combined with the rubber sealing gasket can enhance the sealing between the inspection door and the inspection port, and reduce the leakage of airflow inside the dust collector.
[0017] Furthermore, both the inner cavity of the inspection port and the periphery of the sealing block are sloped, and the slope of the inner cavity of the inspection port is adapted to the slope of the outer periphery of the sealing block.
[0018] In this technical solution, the inner cavity of the inspection port and the periphery of the sealing block are set with slopes, which makes it easier for the inspection door and the inspection port to be aligned and fitted during installation, improving the tightness of the sealing and the installation efficiency, and reducing the operational troubles and safety hazards caused by misalignment.
[0019] Furthermore, the width of the sliding groove is smaller than the width of the limiting groove, and the width of the sliding groove is adapted to the thickness of the inspection door.
[0020] In this technical solution, the sliding trajectory of the maintenance door can be limited by the width difference between the sliding groove and the limiting groove, as well as the matching design between the sliding groove and the thickness of the maintenance door, to prevent the door from shifting or falling off during movement, reduce the need for manual support, and improve operational stability and safety.
[0021] Furthermore, the distance between the upper and lower sides of the blocking block near the inspection door is adapted to the distance between the two limiting blocks.
[0022] In this technical solution, by matching the distance between the blocking block and the limiting block, the inspection door can be ensured to slide between the two limiting blocks.
[0023] Furthermore, the end of the slide groove away from the limiting groove is open, and the end of the limiting block near the opening is provided with a baffle. The size of the baffle is adapted to the size of the end face of the limiting block. A second fixing bolt passes through the baffle and is threadedly connected to the surface of the fixing block.
[0024] In this technical solution, the baffle and the second fixing bolt at the opening can prevent the maintenance door from falling out of the slide opening in the non-disassembly state, thus preventing the door from accidentally sliding down and causing safety hazards; when disassembling, the baffle can be removed, which takes into account both the reliability of the limit and the convenience of operation, and reduces the difficulty of single-person operation.
[0025] The beneficial effects of this utility model are:
[0026] 1. This utility model effectively limits the maintenance door by using the limiting groove of the limiting block, replacing manual support, reducing the difficulty of single-person operation, preventing the door from suddenly flipping and hitting maintenance personnel, improving operational safety, and using the sliding groove to slide the maintenance door away from the maintenance opening, thus facilitating maintenance through the maintenance opening.
[0027] 2. This utility model features inclined surfaces around the inner cavity of the inspection port and around the sealing block, making it easier to align and fit the inspection door and inspection port during installation. This improves the tightness of the sealing and installation efficiency, and reduces operational inconvenience and safety hazards caused by misalignment. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0029] Figure 2 This is a schematic diagram of the vessel body structure of this utility model;
[0030] Figure 3 This is a schematic diagram of the structure of the liquid supply device and detection device for the vessel body of this utility model.
[0031] In the diagram: 1. Baghouse dust collector body; 11. Inspection port; 2. Limiting block; 21. First fixing bolt; 22. Inspection door; 23. Limiting groove; 24. Sliding groove; 3. Baffle; 31. Second fixing bolt; 4. Caster wheel; 5. Sealing block; 51. Rubber sealing gasket. Detailed Implementation
[0032] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0033] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0034] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0035] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0036] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0037] Example 1:
[0038] like Figure 1-3 As shown, this utility model provides a detachable maintenance door structure for a negative pressure large bag filter dust collector, including:
[0039] Baghouse dust collector body 1;
[0040] The maintenance mechanism is used to inspect and repair the filter bags inside the body 1 of the bag filter. The maintenance mechanism includes:
[0041] Inspection port 11 is located on the side of the middle box of the bag filter body 1;
[0042] Two limiting blocks 2 are fixed to the bag filter body 1 on the upper and lower sides of the inspection port 11 respectively. The opposite ends of the two limiting blocks 2 are provided with limiting grooves 23 and sliding grooves 24, and the sliding grooves 24 are connected to the limiting grooves 23.
[0043] The inspection door 22 slides between two limiting grooves 23 and is aligned and adapted to the inspection port 11;
[0044] Four first fixing bolts 21 are respectively rotated through two limiting blocks 2 and abut against the inspection door 22, and the first fixing bolts 21 are threadedly connected to the limiting blocks 2.
[0045] The limiting groove 23 of the limiting block 2 can constrain the inspection door 22 in the vertical direction, while the sliding groove 24 provides a sliding path for the inspection door 22. The first fixing bolt 21 is tightened by screwing to secure the inspection door 22. When disassembling, after loosening the first fixing bolt 21, the inspection door 22 is moved to correspond with the sliding groove 24. Thus, the inspection door 22 can slide along the sliding groove 24 and is restricted from suddenly flipping over. No manual support is required, which reduces the difficulty of single-person operation and eliminates the risk of impact.
[0046] The inspection door 22 is equipped with casters 4 on both the upper and lower ends, and the casters 4 on the upper and lower ends of the inspection door 22 abut against the inner cavities of the two limiting grooves 23 respectively.
[0047] By having the universal wheels 4 at the upper and lower ends of the inspection door 22 abut against the inner cavity of the limiting groove 23, the sliding of the inspection door 22 in the limiting groove 23 is converted into rolling friction, reducing sliding resistance. When the first fixing bolt 21 is loosened, the inspection door 22 can move more smoothly along the slide groove 24, making it easy for a single person to push the door and avoiding safety problems caused by unstable operation due to excessive resistance.
[0048] A sealing block 5 is fixedly connected to one end of the inspection door 22 near the inspection port 11, and rubber sealing gaskets 51 are fixedly connected to all four sides of the sealing block 5.
[0049] When the inspection door 22 is closed, the sealing block 5 is embedded in the inspection port 11, and the rubber sealing gasket 51 around it is squeezed and deformed, filling the gap between the sealing block 5 and the inspection port 11. This not only enhances the sealing performance, but also reduces the impact on personnel and equipment by cushioning the impact between the door and the dust collector body through the elasticity of the rubber during the closing process.
[0050] The inner cavity of the inspection port 11 and the periphery of the sealing block 5 are both sloped, and the slope of the inner cavity of the inspection port 11 is adapted to the slope of the outer periphery of the sealing block 5.
[0051] With the inclined surfaces of the inspection port 11 and the sealing block 5, when the inspection door 22 is closed, the sealing block 5 can be automatically aligned with the inspection port 11 by the inclined surface guide, guiding the door body to be accurately embedded, thereby reducing the operation of alignment adjustment, making it convenient for a single person to quickly complete the closing action. At the same time, the inclined surfaces fit more tightly, avoiding gaps caused by misalignment of the door body, which would affect the sealing effect.
[0052] The width of the slide groove 24 is smaller than the width of the limiting groove 23, and the width of the slide groove 24 is adapted to the thickness of the inspection door 22.
[0053] By matching the width of the slide groove 24 with the thickness of the inspection door 22, a lateral constraint can be formed on the inspection door 22 when it slides, preventing the door from shifting to the left or right. The width of the slide groove 24 is smaller than the width of the limiting groove 23, which allows the inspection door 22 to maintain a stable posture within the limiting groove 23 while moving directionally along the slide groove 24, preventing it from overturning due to deviation during the sliding process.
[0054] The distance between the upper and lower sides of the sealing block 5 near the inspection door 22 is adapted to the distance between the two limiting blocks 2.
[0055] By matching the vertical distance of the sealing block 5 near the end of the inspection door 22 with the distance of the two limiting blocks 2, the inspection door 22 can be ensured to slide between the two limiting blocks 2 when it is installed or slid.
[0056] The end of the slide groove 24 away from the limiting groove 23 is open. The end of the limiting block 2 near the opening is provided with a baffle 3. The size of the baffle 3 is adapted to the size of the end face of the limiting block 2. A second fixing bolt 31 passes through the baffle 3, and the second fixing bolt 31 is threadedly connected to the surface of the fixing block.
[0057] In the non-disassembly state, the baffle 3 is fixed to the opening end of the limit block 2 by the second fixing bolt 31, which can prevent the inspection door 22 from coming out of the opening of the slide 24 and prevent the door from sliding down the slide 24 due to accidental loosening; when disassembly is required, the second fixing bolt 31 and the baffle 3 are removed, and the inspection door 22 can slide smoothly out along the slide 24, which is convenient for replacing the damaged inspection door 22.
[0058] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A detachable access door structure of a negative pressure big bag dust collector, characterized in that, include: Baghouse dust collector body (1); The maintenance mechanism is used to inspect and repair the filter bags inside the body (1) of the bag filter. The maintenance mechanism includes: The inspection port (11) is located on the side of the middle box of the bag filter body (1); Two limiting blocks (2) are fixed to the bag filter body (1) on the upper and lower sides of the inspection port (11), respectively. The opposite ends of the two limiting blocks (2) are provided with limiting grooves (23) and sliding grooves (24), and the sliding grooves (24) are connected to the limiting grooves (23). The inspection door (22) slides between two limiting grooves (23) and is aligned with the inspection port (11); Four first fixing bolts (21) are respectively rotated through two limit blocks (2) and abut against the inspection door (22), and the first fixing bolts (21) are threadedly connected to the limit blocks (2).
2. A removable access door (22) structure for a negative pressure big bag dust collector according to claim 1, characterized in that, The inspection door (22) is equipped with casters (4) on both the upper and lower ends, and the casters (4) on the upper and lower ends of the inspection door (22) abut against the inner cavities of the two limiting grooves (23).
3. The detachable maintenance door (22) structure of a negative pressure large bag filter dust collector according to claim 1, characterized in that, The inspection door (22) is fixedly connected to a sealing block (5) at one end near the inspection port (11), and rubber sealing gaskets (51) are fixedly connected around the sealing block (5).
4. A removable access door (22) structure for a negative pressure big bag dust collector according to claim 3, characterized in that, The inner cavity of the inspection port (11) and the periphery of the sealing block (5) are both sloped, and the slope of the inner cavity of the inspection port (11) is adapted to the slope of the outer periphery of the sealing block (5).
5. A removable access door (22) structure for a negative pressure big bag dust collector according to claim 1, characterized in that, The width of the slide groove (24) is smaller than the width of the limiting groove (23), and the width of the slide groove (24) is adapted to the thickness of the inspection door (22).
6. A removable access door (22) structure for a negative pressure big bag dust collector according to claim 3, characterized in that, The distance between the upper and lower sides of the sealing block (5) near the inspection door (22) is adapted to the distance between the two limiting blocks (2).
7. A removable access door (22) structure for a negative pressure big bag dust collector according to claim 1, characterized in that, The end of the slide groove (24) away from the limiting groove (23) is open. The end of the limiting block (2) near the opening is provided with a baffle (3). The size of the baffle (3) is adapted to the size of the end face of the limiting block (2). A second fixing bolt (31) passes through the baffle (3), and the second fixing bolt (31) is threadedly connected to the surface of the fixing block.