A filter which is easily disassembled

Abstract

The utility model belongs to filter technical field especially, is convenient to dismantle's filter, including support frame, lower casing and upper casing, the support frame is connected with lower casing through bolt, the lower casing top is provided with upper casing, the junction of upper casing and lower casing all are fixed with the location end, the location bolt is arranged in the location end, the inside installation of lower casing has the filter assembly, the inside both sides of location plate all are installed with electric telescopic rail, the telescopic end of electric telescopic rail is connected with the limit ring downward, the contact place of limit ring and upper casing outer wall is equipped with the limit groove, through electric telescopic rail drive limit ring to compress tightly or loosen the location bolt, has realized shell locking and loosening, simultaneously through the continuous, stable pressure that electric telescopic rail provided, acts on all location bolt, equivalent to the bolt added a constant anti -loose pre -tightening force, prevented the loosening and unthreading of bolt.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, specifically relating to a filter that is easy to disassemble. Background Technology

[0002] In industries such as chemical, metallurgical, food, and pharmaceutical, gas filtration is a common process used to remove particulate pollutants such as dust and oil mist from exhaust gases. Filters used in such applications typically consist of upper and lower housings with inlet and outlet ports, with filter elements or filter media installed inside the housings.

[0003] Traditional filter housing connections often use flanges with multiple bolts and nuts, or directly open through holes in the housing flange, insert long bolts through them, and then lock them with nuts. However, filter elements are consumables and need to be replaced regularly.

[0004] When replacing the filter element in existing filters, operators typically need to use tools to disassemble and install a dozen or even dozens of bolts one by one. This process is not only time-consuming and labor-intensive, but also very difficult to operate in high-altitude, narrow, or corrosive environments. Furthermore, traditional bolted connections are at risk of loosening under long-term vibration, even with anti-loosening washers. Once the bolts loosen, it will cause leakage at the flange sealing surface, which will not only affect the filtration effect, but also cause unfiltered exhaust gas to leak out and pollute the environment. Therefore, we propose a filter that is easy to disassemble. Utility Model Content

[0005] To address the issue raised in the background that existing filters typically require operators to manually remove and install dozens of bolts when replacing filter elements—a process that is not only time-consuming and labor-intensive, but also extremely difficult in high-altitude, confined, or corrosive environments—and that traditional bolted connections, even with anti-loosening washers, are prone to loosening under long-term vibration, leading to flange sealing leaks, affecting filtration efficiency, and causing unfiltered exhaust gas to leak and pollute the environment, this invention provides a filter that is easy to disassemble.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter that is easy to disassemble, comprising a support frame, a lower housing, and an upper housing. The lower housing is bolted to the support frame, and the upper housing is disposed above the lower housing. A positioning end is fixed at the connection between the upper housing and the lower housing, and a positioning bolt passes through the positioning end. An inlet is fixed at one end of the lower housing, and a filter assembly is installed inside the lower housing. An outlet is fixed at the top of the upper housing.

[0007] A positioning plate is fixed to the outer side of the upper housing, and electric telescopic rods are installed on both sides of the inner side of the positioning plate. The telescopic end of the electric telescopic rod is connected downward to a limit ring, and a limit groove is formed at the contact point between the limit ring and the outer wall of the upper housing.

[0008] As a preferred embodiment of the present invention, the bottom of the lower housing is provided with a slag discharge port, which is located at the lowest point of the bottom of the lower housing and is equipped with a sealing cap valve.

[0009] As a preferred embodiment of this utility model for easy disassembly of the filter, the positioning bolt is inserted into the positioning end to achieve relative fixation between the upper housing and the lower housing.

[0010] As a preferred embodiment of this utility model for easy disassembly of a filter, the number of electric telescopic rods is two, which are symmetrically installed on both sides of the positioning plate and can move synchronously.

[0011] As a preferred embodiment of the present invention for a filter that is easy to disassemble, the limiting ring is an annular frame structure, and the limiting groove on the inner edge of the limiting ring is adapted to the shape of the outer wall of the upper housing, so that the limiting ring can slide up and down along the outer wall of the upper housing.

[0012] As a preferred embodiment of this utility model of a filter that is easy to disassemble, the positioning end is integrally formed with the upper housing and the lower housing respectively, and the bolt holes thereon are concentrically aligned.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In this application, the initial fixing of the shell can be achieved by simply tightening a small number of positioning bolts by hand. The positioning bolts are tightened or loosened by driving the limit ring through the electric telescopic rod, thus realizing the locking and loosening of the shell. During disassembly, the bolts can be easily removed and the shell separated simply by controlling the electric telescopic rod to rise. During installation, after initially tightening the bolts, the electric clamping can be used to tighten them. The whole process eliminates the heavy manual tightening work, shortening the maintenance time from several hours to several minutes, greatly improving work efficiency. The continuous and stable downward pressure provided by the electric telescopic rod acts on all positioning bolts, which is equivalent to adding a constant anti-loosening preload to the bolts, preventing the bolts from loosening and falling off, ensuring the long-term integrity of the sealing surface of the filter during operation, and preventing the problems of difficult operation when replacing filter elements and the risk of loosening of bolt connections under long-term vibration environment in existing filters. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the external planar structure of this utility model.

[0019] In the diagram: 1. Support frame; 2. Lower shell; 3. Upper shell; 4. Positioning end; 5. Positioning bolt; 6. Discharge port; 7. Inlet; 8. Slag discharge port; 9. Filter assembly; 10. Limiting ring; 11. Limiting groove; 12. Positioning plate; 13. Electric telescopic rod. Detailed Implementation

[0020] 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 scope of protection of the present utility model. Embodiment 1

[0021] like Figures 1-4 As shown;

[0022] A filter that is easy to disassemble includes a support frame 1, a lower housing 2, and an upper housing 3. The lower housing 2 is bolted to the support frame 1, and the upper housing 3 is disposed above the lower housing 2. A positioning end 4 is fixed at the connection between the upper housing 3 and the lower housing 2. A positioning bolt 5 passes through the positioning end 4. An inlet 7 is fixed at one end of the lower housing 2. A filter assembly 9 is installed inside the lower housing 2. An outlet 6 is fixed at the top of the upper housing 3. A positioning plate 12 is fixed on the outside of the upper housing 3. Electric telescopic rods 13 are installed on both sides of the inner side of the positioning plate 12. The telescopic end of the electric telescopic rod 13 is connected downward to a limit ring 10. A limit groove 11 is formed at the contact point between the limit ring 10 and the outer wall of the upper housing 3.

[0023] In this implementation scheme: the initial fixing of the housing can be achieved by simply hand-tightening a small number of positioning bolts 5. The positioning bolts 5 are tightened or loosened by the limit ring 10 driven by the electric telescopic rod 13, thus achieving the locking and loosening of the housing. During disassembly, the bolts can be easily removed and the housing separated simply by controlling the electric telescopic rod 13 to rise. During installation, after initially tightening the bolts, electric tightening is sufficient. The entire process eliminates the heavy manual tightening work, reducing maintenance time from several hours to several minutes, greatly improving work efficiency. The continuous and stable downward pressure provided by the electric telescopic rod 13 acts on all positioning bolts 5, which is equivalent to adding a constant anti-loosening preload to the bolts, preventing the bolts from loosening and detaching, and ensuring the long-term integrity of the sealing surface of the filter during operation.

[0024] In an optional embodiment, the bottom of the lower housing 2 is provided with a slag discharge port 8, which is located at the lowest point of the bottom of the lower housing 2 and is equipped with a sealing cover valve.

[0025] In this implementation scheme: the slag discharge port 8 is set at the lowest point of the bottom of the lower shell 2, which ensures that all impurities intercepted by the filter component 9 can be collected at the slag discharge port 8 under the action of gravity, avoiding the accumulation of impurities at the bottom of the shell, thereby achieving thorough and efficient slag discharge.

[0026] In an optional embodiment, the positioning bolt 5 is inserted into the positioning end 4 to achieve relative fixation between the upper housing 3 and the lower housing 2.

[0027] In this implementation scheme, the positioning bolts 5 are inserted into the positioning ends 4 that are respectively fixed on the upper housing 3 and the lower housing 2, providing a simple, reliable and robust connection method that can withstand the internal pressure of the equipment and tightly press the housing together to ensure the effectiveness of the sealing surface.

[0028] In one optional embodiment, there are two electric telescopic rods 13, which are symmetrically installed on both sides of the positioning plate 12 and can extend and retract synchronously.

[0029] In this implementation plan, two electric telescopic rods 13 are symmetrically arranged on both sides of the positioning plate 12, which can ensure that the limit ring 10 driven by them remains horizontal during the lifting process. When tightening the positioning bolts 5, a uniform clamping force can be applied to all bolts, avoiding problems such as uneven bolt preload and misalignment of the sealing surface caused by unilateral force.

[0030] In an optional embodiment, the limiting ring 10 is an annular frame structure, and the limiting groove 11 on the inner edge of the limiting ring 10 is adapted to the shape of the outer wall of the upper housing 3, so that the limiting ring 10 can slide up and down along the outer wall of the upper housing 3.

[0031] In this implementation scheme, the matching design between the limiting groove 11 and the outer wall of the upper housing 3 strictly restricts the movement of the limiting ring 10 in the vertical direction, which plays a good guiding role. The limiting ring 10 with the ring frame structure has strong integrity and can evenly transmit the driving force of the electric telescopic rods 13 on both sides to the entire ring body, and then act on all bolts, which enhances the rigidity and stability of the clamping structure.

[0032] In an optional embodiment, the positioning end 4 is integrally formed with the upper housing 3 and the lower housing 2, respectively, and the bolt holes thereon are concentrically aligned.

[0033] In this implementation scheme, the positioning end 4 is integrally formed with the upper shell 3 and the lower shell 2 as if it were cast, which avoids problems such as insufficient strength, stress concentration or easy loosening that may be caused by welding or bolt connection, making the structural strength of the connection part higher and more able to withstand the bolt tightening force and the internal pressure of the equipment.

[0034] Working principle:

[0035] When the filter needs to be reassembled after installation or maintenance, first place the filter assembly 9 in the designated position inside the lower housing 2, cover the lower housing 2 with the upper housing 3, insert the positioning bolts 5 into the bolt holes of the aligned positioning ends 4, and perform preliminary manual tightening to achieve preliminary connection and sealing between the upper housing 3 and the lower housing 2.

[0036] When the electric telescopic rod 13 is activated, the piston rods of both sides of the electric telescopic rod 13 extend downwards simultaneously, pushing the limiting ring 10 downwards. The limiting ring 10 engages with the outer wall of the upper housing 3 through its inner limiting groove 11, ensuring its vertical downward movement without deviation. The bottom of the descending limiting ring 10 finally presses against the nuts or washers of all the positioning bolts 5. This clamping force provides a continuous preload to the positioning bolts 5, effectively preventing the positioning bolts 5 from loosening or coming loose due to vibration during long-term operation, ensuring the long-term stability and sealing reliability of the housing connection. The electric telescopic rod 13 is powered and controlled by the same control system, such as a PLC or a simple switching circuit, ensuring simultaneous power on / off, simultaneous action, and consistent stroke.

[0037] The waste gas to be treated enters the filter through the inlet 7 connected to one end of the lower housing 2. The inlet 7 is usually connected to power equipment such as a pump through a pipe. After the waste gas enters the lower housing 2, it passes through the internal filter assembly 9. The filter assembly 9 intercepts particulate impurities in the waste gas. The filtered clean gas rises to the internal space of the upper housing 3 and is finally discharged from the outlet 6 fixed to the top of the upper housing 3. The intercepted particulate impurities settle at the bottom of the lower housing 2 under the action of gravity and can be discharged periodically or continuously through the slag discharge port 8 at the bottom of the lower housing 2.

[0038] When it is necessary to replace the filter assembly 9 or perform internal cleaning, first stop the exhaust gas supply, start the electric telescopic rod 13, the telescopic rod retracts synchronously, driving the limit ring 10 to move upward, releasing the clamping force on the positioning bolts 5, then unscrew all the positioning bolts 5, lift or remove the upper housing 3, and the filter assembly 9 inside the lower housing 2 can be fully exposed for replacement or maintenance. The entire disassembly process does not require heavy manual tools to disassemble and install a large number of bolts, saving time and effort.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A filter for easy disassembly comprising a support frame (1), a lower housing (2) and an upper housing (3), characterized in that: The support frame (1) is connected to the lower housing (2) by bolts. The upper housing (3) is provided above the lower housing (2). The upper housing (3) and the lower housing (2) are both fixed with positioning ends (4). Positioning bolts (5) are inserted in the positioning ends (4). One end of the lower housing (2) is fixed with an inlet (7). The lower housing (2) is installed with a filter assembly (9). The top of the upper housing (3) is fixed with an outlet (6). A positioning plate (12) is fixed on the outer side of the upper housing (3). Electric telescopic rods (13) are installed on both sides of the inner side of the positioning plate (12). The telescopic end of the electric telescopic rod (13) is connected downward to a limiting ring (10). A limiting groove (11) is opened at the contact point between the limiting ring (10) and the outer wall of the upper housing (3).

2. The filter for easy removal according to claim 1, characterized in that: The bottom of the lower housing (2) is provided with a slag discharge port (8), which is located at the lowest point of the bottom of the lower housing (2) and is equipped with a sealing cover valve.

3. The filter for easy removal according to claim 1, wherein: The positioning bolt (5) is inserted into the positioning end (4) to achieve relative fixation between the upper housing (3) and the lower housing (2).

4. The filter for easy removal of claim 1, wherein: There are two electric telescopic rods (13), which are symmetrically installed on both sides of the positioning plate (12) and can move synchronously.

5. The filter for easy removal of claim 1, wherein: The limiting ring (10) is a ring frame structure. The limiting groove (11) on the inner edge of the limiting ring (10) is adapted to the shape of the outer wall of the upper shell (3), so that the limiting ring (10) can slide up and down along the outer wall of the upper shell (3).

6. The filter for easy removal of claim 1, wherein: The positioning end (4) is integrally formed with the upper shell (3) and the lower shell (2), respectively, and the bolt holes on it are concentrically aligned.

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