Leakage-free roof door assembly

Abstract

The utility model discloses a non-leakage top door assembly which comprises a plurality of access holes formed in a top plate of a dust remover, inspection hole coamings protruding out of the top plate are arranged at the edges of the access holes, and grooves with openings in the two ends are formed between the adjacent inspection hole coamings. The groove bottom of the groove is obliquely arranged in a manner of guiding flow to at least one port; an access door is mounted on each inspection opening coaming, a sealing structure is arranged between each access door and the corresponding inspection opening coaming, and a fixing structure is arranged between each access door and the dust remover. According to the utility model, the groove bottom of the groove is arranged in an inclined manner, so that water flow can be quickly guided out from the port, the drainage smoothness is improved, the rainwater accumulation is obviously reduced, the rainwater is not easy to form a state of overflowing the groove, and the rainwater leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a leakage-free top door assembly. Background Art

[0002] A dust collector is used to filter dust from dust-laden gases. Its main structure consists of an upper clean air chamber and a lower dust chamber. The clean air chamber is connected to a negative pressure blower to generate negative pressure suction, which causes the dust-laden gas to be drawn into the dust chamber for filtration. The top of the dust collector, also known as the top of the clean air chamber, is configured as a maintenance platform with an inspection port for daily internal maintenance of the equipment. An inspection door is installed on the inspection port, secured with bolts on all four sides and a sealing ring in the middle to ensure the tightness of the clean air chamber. Because dust collectors are large outdoor equipment with a large top inspection platform, multiple inspection doors are typically provided to reduce the weight of a single door and facilitate manual assembly and disassembly, as shown in announcement number CN214597825U. However, in this case, there are grooves between the doors, and during heavy rainfall, significant accumulation of rainwater can occur in the grooves. However, due to the high negative pressure inside the clean air chamber and the difference in pressure between rainwater and air, accumulated rainwater can easily seep through the seal between the inspection door and the inspection port, causing inward leakage. This can affect the normal dust removal operation of the dust collector and even cause shutdown. Therefore, it is necessary to optimize the top door structure to improve this situation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a leak-free top door assembly which can significantly reduce the accumulation of rainwater and help avoid rainwater leakage.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a leakage-free top door assembly, including several inspection ports arranged on the top plate of the dust collector, and inspection port enclosures protruding from the top plate are provided at the edges of the inspection ports, and grooves with openings at both ends are formed between adjacent inspection port enclosures, and the bottom of the groove is inclined to guide the flow toward at least one of the ports; an inspection door is respectively installed on each of the inspection port enclosures, and a sealing structure is provided between the inspection door and the corresponding inspection port enclosure, and a fixing structure is provided between the inspection door and the dust collector.

[0005] As a preferred technical solution, the sealing structure includes a sealing ring plate fixedly arranged on the outer peripheral surface of the inspection port enclosure, the inspection port enclosure is outer-mounted with a sealing ring located on the upper side of the sealing ring plate, and the inspection door is arranged to be pressed against the sealing ring.

[0006] As a preferred technical solution, a downward-bent sealing panel is integrally provided at the edge of the inspection door, and the sealing panel is pressed against the outer side of the sealing ring.

[0007] As a preferred technical solution, the fixing structure includes a number of fixed screw sleeves fixedly arranged on the dust collector and respectively located around the inspection door. A fixed pressure plate for pressing on the inspection door is provided above each of the fixed screw sleeves. A pressing connection hole is provided on the fixed pressure plate. A fixing bolt is installed through the pressing connection hole. The lower end of the fixing bolt is threadedly connected to the corresponding fixed screw sleeve.

[0008] As a preferred technical solution, the fixing screw sleeve, the fixing pressure plate and the fixing bolt are commonly provided between two adjacent inspection doors.

[0009] Due to the adoption of the above technical solution, the leak-free top door assembly includes several inspection ports arranged on the top plate of the dust collector, the edges of the inspection ports are provided with inspection port enclosures protruding from the top plate, and grooves with both ends open are formed between adjacent inspection port enclosures, and the bottom of the groove is inclined to guide the flow toward at least one of the ports; an inspection door is installed on each inspection port enclosure, a sealing structure is provided between the inspection door and the corresponding inspection port enclosure, and a fixing structure is provided between the inspection door and the dust collector. The utility model arranges the bottom of the groove in an inclined shape at the groove, so that water can be quickly discharged from the port, improving the smoothness of drainage, significantly reducing the accumulation of rainwater, and making it less likely for rainwater to overflow the groove, which is conducive to avoiding rainwater leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0011] Figure 1 This is a schematic cross-sectional view of an embodiment of the present invention;

[0012] Figure 2 yes Figure 1 Schematic diagram of AA structure;

[0013] Figure 3 yes Figure 1 An enlarged schematic diagram of the sealing structure and the fixed structure in the upper left corner;

[0014] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure of one of the grooves;

[0015] Figure 5 yes Figure 2 An enlarged schematic diagram of one of the fixed structures.

[0016] In the figure: 1-dust collector; 11-clean air chamber; 12-top plate; 2-inspection port; 21-inspection port enclosure; 22-groove; 3-inspection door; 4-sealing structure; 41-sealing ring plate; 42-sealing ring; 43-sealing enclosure; 5-fixing structure; 51-fixing screw sleeve; 52-fixing pressure plate; 53-fixing bolt. DETAILED DESCRIPTION

[0017] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0018] like Figure 1 and Figure 2 As shown, the leakage-free top door assembly includes several inspection ports 2 arranged at the top plate 12 of the dust collector 1, and the edges of the inspection ports 2 are provided with inspection port enclosures 21 protruding from the top plate 12, and grooves 22 with openings at both ends are formed between adjacent inspection port enclosures 21. The above is a well-known technology in the field of dust collector 1 and will not be repeated here.

[0019] The bottom of the groove 22 is tilted to direct water toward at least one of the ports. This tilt improves the smoothness of rainwater drainage to the port, significantly reduces rainwater accumulation, and makes it less likely for rainwater to overflow the groove 22, thus preventing rainwater leakage. In this embodiment, the bottom of the groove 22 is tilted to direct water toward only one of the ports. Of course, an inverted V-shape with a higher center and tilted toward both ports is also possible. The tilted bottom of the groove 22 does not significantly complicate manufacturing, and the manufacturing cost remains unchanged.

[0020] An access door 3 is mounted on each of the inspection opening panels 21. A sealing structure 4 is provided between the access door 3 and the corresponding inspection opening panel 21. A fixing structure 5 is provided between the access door 3 and the dust collector 1. The access door 3 is fixed to the corresponding inspection opening 2 by the fixing structure 5, and after being fixed, a seal is formed by the sealing structure 4.

[0021] like Figure 3 and Figure 4As shown, the sealing structure 4 of this embodiment includes a sealing ring plate 41 fixedly mounted on the outer circumference of the inspection port enclosure 21. A sealing ring 42 is provided on the outer surface of the inspection port enclosure 21, located above the sealing ring plate 41. The inspection port enclosure 21 is provided with a sealing ring 42 positioned above the sealing ring plate 41. The inspection door 3 is positioned against the sealing ring 42. When the inspection door 3 is pressed against the sealing ring 42, the sealing ring 42 elastically deforms under pressure, forming a surface seal between the inspection door 3 and at least the sealing ring plate 41, thereby improving the sealing effect.

[0022] Preferably, a downwardly bent sealing panel 43 is integrally provided at the edge of the inspection door 3, and the sealing panel 43 is arranged to press against the outer side of the sealing ring 42. By adding the pressure of the sealing panel 43, the sealing ring 42 is compressed as a whole in the annular cavity between the inspection door 3 and the inspection port enclosure 21. The sealing ring 42 forms a multi-surface seal with the annular cavity wall by elastic deformation, further improving the sealing effect.

[0023] like Figures 3 to 5 As shown, the fixing structure 5 of this embodiment includes a plurality of fixing screw sleeves 51 fixedly arranged on the dust collector 1 and respectively located around the inspection door 3, and a fixing pressure plate 52 for pressing on the inspection door 3 is provided above each of the fixing screw sleeves 51, and a pressing connection hole is provided on the fixing pressure plate 52, and a fixing bolt 53 is installed through the pressing connection hole, and the lower end of the fixing bolt 53 is threadedly connected to the corresponding fixing screw sleeve 51.

[0024] By rotating the fixing bolt 53 downward, the fixed pressure plate 52 presses against the access door 3, and the surrounding pressure together secures the access door 3. This embodiment employs a method of providing the fixing screw sleeve 51 on the top plate 12 and then securing it with the fixing bolt 53. This method reduces rust on the threaded connection and facilitates smooth subsequent maintenance and disassembly. Preferably, the fixing screw sleeve 51 is coated with anti-rust grease to further reduce rust caused by rainwater and other factors on the threaded connection.

[0025] Preferably, the fixing screw sleeve 51, the fixing pressure plate 52, and the fixing bolt 53 are shared between two adjacent inspection doors 3, thereby simplifying the configuration of the fixing structure 5, reducing costs, and simplifying assembly and disassembly operations. Of course, the fixing screw sleeve 51 between adjacent inspection doors 3 is on the bottom of the groove 22.

[0026] This embodiment features an inclined bottom at the groove 22, allowing water to flow quickly from the port. This improves drainage efficiency and significantly reduces rainwater accumulation, making it less likely for rainwater to overflow the groove 22 and preventing rainwater leakage. This embodiment also optimizes the sealing structure 4 to further enhance the sealability of the access door 3, further preventing rainwater leakage. This minimizes the impact of rain on the operation of the dust collector 1, ensuring long-term, reliable operation of the dust collector 1.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A leak-free top door assembly comprising a plurality of inspection openings provided on the top plate of the dust collector, wherein the edges of the inspection openings are provided with inspection opening panels protruding from the top plate, and grooves with open ends are formed between adjacent inspection opening panels, characterized in that: The bottom of the groove is arranged in an inclined shape to guide the flow toward at least one of the ports; an inspection door is installed on each inspection port enclosure, a sealing structure is provided between the inspection door and the corresponding inspection port enclosure, and a fixing structure is provided between the inspection door and the dust collector.

2. The leak-free top door assembly according to claim 1, characterized in that: The sealing structure includes a sealing ring plate fixedly arranged on the outer peripheral surface of the inspection port enclosure, the inspection port enclosure is outer-mounted with a sealing ring located on the upper side of the sealing ring plate, and the inspection door is arranged to be pressed against the sealing ring.

3. The leak-free top door assembly according to claim 2, characterized in that: A downward-bending sealing panel is integrally provided at the edge of the inspection door, and the sealing panel is pressed against the outer side of the sealing ring.

4. The leak-free top door assembly according to claim 1, characterized in that: The fixing structure includes a plurality of fixing screw sleeves fixedly arranged on the dust collector and respectively located around the inspection door. A fixing pressure plate for pressing on the inspection door is provided above each of the fixing screw sleeves. A pressing connection hole is provided on the fixing pressure plate. A fixing bolt is installed through the pressing connection hole. The lower end of the fixing bolt is threadedly connected to the corresponding fixing screw sleeve.

5. The leak-free top door assembly according to claim 4, characterized in that: The fixing screw sleeve, the fixing pressure plate and the fixing bolt are commonly provided between two adjacent inspection doors.

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