Vacuum dust filter

Abstract

The utility model discloses a kind of vacuum dust filters, it is related to dust filtering technical field, including: shell;Two flanges;End cover;Two sealing strips;Two mounting seats, it is respectively fixedly connected in shell;Filter core, it is inserted and matched with connection between two mounting seats, filter screen is provided on filter core;Sealing ring, it is fixedly connected on filter core;Locking mechanism, it includes two locking rods of transverse sliding connection in mounting seat, two locking rods are fixedly connected with lever, and first spring is connected with the sleeve of two locking rods. By setting the filter core of metal material, it can be reused after pressure gas cleans filter core, prolong the service life of filter core, reduce filter core replacement cost, avoid pollution to environment;At the same time, after opening end cover, lever can be unlocked to filter core, so that filter core is taken out from shell and cleaned, by setting locking mechanism, the quick disassembly, installation of filter core is realized, and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dust filtration technology, specifically a vacuum dust filter. Background Technology

[0002] A dust filter is a device used to remove particulate matter from an airflow. It primarily separates dust from gas through physical interception or adhesion, and is widely used in industrial production. Its working principle is as follows: dust filters mainly utilize physical interception or adhesive adhesion principles to remove dust. Dry mesh or adhesive-coated filter media separate particulate matter from the gas through interception and adhesion, achieving a purification effect.

[0003] For example, publication number CN219345881U, publication date July 14, 2023, titled "A Stainless Steel Air Duct with Built-in Filter," includes a stainless steel air duct body. An annular fixing plate is fixedly connected inside the stainless steel air duct body. A first filter screen is equidistantly arranged inside the annular fixing plate. A rotating groove is opened at the center of the annular fixing plate. A dust cleaning mechanism is arranged inside the stainless steel air duct body and on one side of the annular fixing plate. A cleaning pipe is fixedly connected to the outside of the stainless steel air duct body, and a cleaning mechanism is arranged inside the cleaning pipe. This technical solution solves the problem in existing technologies where, after prolonged use, stainless steel air ducts often accumulate a lot of dust carried by the gas inside the duct, leading to blockage, affecting normal gas emission, and consequently impacting the normal use of the stainless steel air duct, greatly reducing the practicality of the equipment and hindering its application and operation.

[0004] In existing technologies, filter elements are made of paper or fiber materials, which are prone to moisture absorption and aging in vacuum environments. This is especially true in conditions with corrosive gases, where the filter elements deteriorate more quickly and have a shorter lifespan. These filter elements are disposable, resulting in high replacement costs, and improper disposal can pollute the environment. Furthermore, because the filter elements are located inside the pipeline, disassembly is inconvenient when replacing them, leading to high maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum dust filter to address the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum dust filter, comprising:

[0007] case;

[0008] Two flanges are respectively located at both ends of the housing;

[0009] End caps, which are hinged to the housing;

[0010] Two sealing strips are respectively installed on both sides of the bottom of the end cap;

[0011] Two mounting bases are fixedly connected inside the housing;

[0012] The filter element is inserted and connected between two mounting bases, and a filter screen is provided on the filter element.

[0013] The sealing ring is fixedly connected to the filter element;

[0014] The locking mechanism includes two locking rods that are laterally slidably connected to the mounting base. A lever is fixedly connected to each of the two locking rods, and a first spring is sleeved on each of the two locking rods.

[0015] Furthermore, it also includes a limiting mechanism, which includes a buckle rotatably connected to the end cap, the buckle having a ramp and a limiting platform, a limiting rod slidably connected to the housing, an abutment block slidably connected to the housing, and a second spring provided between the abutment block and the housing.

[0016] Furthermore, a blind groove is provided on the housing, the limiting rod is vertically slidably connected in the blind groove, and the abutment block is horizontally slidably connected in the blind groove.

[0017] Furthermore, an observation window is provided on the end cap.

[0018] Furthermore, a handle is fixedly connected to the end cap.

[0019] Furthermore, the end of the locking rod is beveled.

[0020] Compared with existing technologies, the vacuum dust filter provided by this utility model, by setting a metal filter element, can be reused after being cleaned by pressurized gas, thus extending the service life of the filter element, reducing the replacement cost of the filter element, and avoiding environmental pollution. At the same time, by opening the end cover and moving the lever, the filter element can be unlocked, thereby removing the filter element from the housing for cleaning. By setting a locking mechanism, the filter element can be quickly disassembled and installed, reducing maintenance costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0023] Figure 2 This is a structural schematic diagram of the end cap in the open state provided in an embodiment of the present utility model;

[0024] Figure 3 A schematic diagram of the filter element, sealing ring, and locking mechanism provided in an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the locking mechanism structure provided in an embodiment of this utility model;

[0026] Figure 5 A schematic diagram of the limiting mechanism provided in an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Housing; 1.1. Blind groove; 2. Flange; 3. End cover; 31. Observation window; 4. Mounting base; 5. Filter element; 7. Sealing ring; 8. Sealing strip; 9. Locking mechanism; 91. Locking rod; 92. First spring; 93. Toggle lever; 10. Limiting mechanism; 101. Buckle; 102. Ramp; 103. Limiting platform; 104. Limiting rod; 105. Abutment block; 106. Second spring. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-5 This utility model provides a vacuum dust filter, comprising: a housing 1; two flanges 2, respectively disposed at both ends of the housing 1; the flanges 2 are used to connect the housing 1 to a pipe; an end cap 3, hinged to the housing 1; preferably, a handle is fixedly connected to the end cap 3; wherein, an observation window 31 is provided on the end cap 3; specifically, two observation windows 31 are provided; the observation windows 31 are provided with glass; the usage status of the filter element can be observed through the observation windows 31; it should be noted that since the filter element 5 is located at... Between the two observation windows 31, the filter element 5 divides the space inside the housing 1 into a filter chamber and a post-filter chamber. When filtering dust, dust will accumulate on the side of the filter element 5 near the filter chamber, on an observation window 31 located in the filter chamber. This makes it impossible to see the inside of the housing 1 when observing through this observation window 31 due to the dust obstruction. At this time, the other observation window 31 located in the post-filter chamber has not accumulated dust since it has already been filtered, and the usage of the filter element 5 can be observed through this observation window 31.

[0030] Two sealing strips 8 are respectively set on the bottom sides of the end cap 3; two mounting bases 4 are respectively fixedly connected inside the housing 1; filter element 5 is inserted and connected between the two mounting bases 4, and a filter screen is provided on the filter element 5; sealing ring 7 is fixedly connected to the filter element 5.

[0031] It is understandable that: not only is there a sealing strip 8 at the bottom of the end cover 3, but also sealing gaskets (not shown in the figure) are provided on both sides of the end cover 3 along the length direction of the end cover 3. The sealing gaskets are arc-shaped and fit the shape of the end of the end cover 3. The function of the sealing gaskets is to maintain the seal between the two sides of the end cover 3 and the housing 1.

[0032] It should be noted that the filter screen is composed of 3-5 layers of metal mesh with different mesh sizes, bonded together through a sintering process. Along the length of the shell 1, the mesh size increases progressively. The outermost layer is a coarser mesh, primarily serving to support and initially intercept large dust particles; the middle layers are medium-mesh meshes, used to intercept medium-sized dust particles; and the innermost layer is a fine mesh, achieving high-precision filtration of fine dust. The layers of metal mesh are sintered into a single unit, possessing high strength and stability. Furthermore, the metal mesh filter element can be cleaned by pressurized gas purging and reused, significantly reducing filter element replacement costs. Simultaneously, its long service life reduces the frequency of replacements, further lowering maintenance costs.

[0033] The locking mechanism 9 includes two locking rods 91 that are laterally slidably connected to the mounting base 4. Specifically, the ends of the locking rods 91 are inclined, and the inclined surfaces abut against the filter element 5. The abutment process drives the locking rods 91 to slide on the mounting base 4. It can be understood that both locking rods 91 are inserted into the filter element 5, and the filter element 5 has insertion holes for the locking rods 91 to be inserted into. A lever 93 is fixedly connected to the two locking rods 91, and a first spring 92 is sleeved and connected to both locking rods 91. Specifically, the first spring 92 is a tension spring.

[0034] Preferably, it also includes a limiting mechanism 10, which is used to limit the end cap 3 onto the housing 1. Furthermore, since the sealing strip 8 and the sealing ring 7 both have a certain degree of elasticity, they can be compressed, resulting in better sealing between the end cap 3 and the housing 1, and between the end cap 3 and the filter element 5. Specifically, it includes a buckle 101 rotatably connected to the end cap 3, the buckle 101 having a ramp 102 and a limiting platform 103, and a limiting rod 10 slidably connected to the housing 1. 4; Specifically, a blind groove 1.1 is provided on the housing 1, the limiting rod 104 is vertically slidably connected in the blind groove 1.1, and the abutment block 105 is horizontally slidably connected in the blind groove 1.1; More specifically, the blind groove 1.1 is L-shaped; the limiting rod 104 is slidably abutting with the ramp 102 and abutting with the limiting platform 103, the abutment block 105 is slidably connected on the housing 1, and a second spring 106 is provided between the abutment block 105 and the housing 1; the second spring 106 is a compression spring.

[0035] Working principle: During use, the condition of the filter element 5 can be observed through the observation window 31. If the filter element 5 needs to be cleaned, open the end cover 3, move the lever 93 to cause the first spring 92 to elastically deform and extend, so that the end of the locking lever 91 is pulled out from the insertion hole of the filter element 5. At this time, the filter element 5 is taken out from the housing 1 and cleaned with pressurized gas. After cleaning, the filter element 5 can be reinstalled into the housing 1 for use. The installation process is the same as the above principle.

[0036] After reinstalling the filter element 5, the end cap 3 needs to be closed so that the sealing strip 8 at the bottom of the end cap 3 abuts against the housing 1. At this time, the limiting mechanism 10 is in the following state: Figure 5 As shown, the limiting rod 104 is limited by the abutment block 105, that is, the position of the limiting rod 104 remains unchanged. Then, the buckle 101 is rotated so that the buckle 101 is fastened on the limiting rod 104. During the rotation of the buckle 101, the ramp 102 abuts against the limiting rod 104, causing the buckle 101 and the end cover 3 to move a certain distance as a whole, so that the end cover 3 squeezes the sealing strip 8 and the sealing ring 7, causing the sealing strip 8 and the sealing ring 7 to deform, thereby improving the sealing effect. Until the buckle 101 rotates to the position where the limiting rod 104 is located at the limiting platform 103, the buckle 101 stops rotating. At this time, the abutment effect between the limiting rod 104 and the limiting platform 103 locks the end cover 3.

[0037] During the process of opening the end cover 3, the abutment block 105 is slid laterally to compress the second spring 106, causing the abutment block 105 to move away from the top of the limiting rod 104, thus releasing the limiting effect on the limiting rod 104. At this time, the limiting rod 104 is moved vertically upward in the blind groove 1.1 to separate the limiting rod 104 from the limiting platform 103. Then, the end cover 3 can be opened by rotating it.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vacuum dust filter, characterized in that, include: Shell (1); Two flanges (2) are respectively located at both ends of the housing (1); End cap (3), which is hinged to housing (1); Two sealing strips (8) are respectively set on both sides of the bottom of the end cap (3); Two mounting bases (4) are fixedly connected inside the housing (1); The filter element (5) is plugged and connected between two mounting bases (4), and a filter screen is provided on the filter element (5); A sealing ring (7) is fixedly connected to the filter element (5); The locking mechanism (9) includes two locking rods (91) that are laterally slidably connected to the mounting base (4), with levers (93) fixedly connected to the two locking rods (91), and a first spring (92) sleeved on each of the two locking rods (91).

2. The vacuum dust filter according to claim 1, characterized in that, It also includes a limiting mechanism (10), which includes a buckle (101) rotatably connected to the end cap (3), the buckle (101) having a ramp (102) and a limiting platform (103), a limiting rod (104) slidably connected to the housing (1), an abutment block (105) slidably connected to the housing (1), and a second spring (106) provided between the abutment block (105) and the housing (1).

3. A vacuum dust filter according to claim 2, characterized in that, A blind groove (1.1) is provided on the housing (1), a limiting rod (104) is vertically slidably connected in the blind groove (1.1), and an abutment block (105) is horizontally slidably connected in the blind groove (1.1).

4. A vacuum dust filter according to claim 1, characterized in that, An observation window (31) is provided on the end cap (3).

5. A vacuum dust filter according to claim 1, characterized in that, A handle is fixedly connected to the end cap (3).

6. A vacuum dust filter according to claim 1, characterized in that, The end of the locking bar (91) is beveled.

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