Filter element dust remover
The combination structure of positioning ring, positioning pin, limiting plate and threaded cover solves the problem of inconvenient filter element replacement, realizes convenient disassembly and installation of filter element, and improves the stability and operation efficiency of dust collector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JIEYUANDA ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
Existing dust collectors are inconvenient to replace and disassemble during filter replacement, which affects their stability and efficiency.
The filter element is conveniently disassembled and installed by means of a combination structure of positioning ring, positioning pin, limiting plate, threaded cover and connecting device, through threaded connection and sliding snap-fit. Combined with the design of anti-loosening mechanism and cleaning door, the maintenance process of filter element is simplified.
It enables convenient replacement and maintenance of filter elements, improves the stability and operational efficiency of dust collectors, and simplifies the replacement and cleaning process of filter elements.
Smart Images

Figure CN224156581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a filter cartridge dust collector. Background Technology
[0002] A dust collector is a device that separates dust from flue gas. Existing dust collection devices are inconvenient to support and fix during use, resulting in instability during placement due to the lack of a fixing mechanism, thus affecting the device's operation.
[0003] A search revealed that prior art CN 217312513U discloses a dust collector with an easy-to-replace filter element, comprising a main body, a filter element cylinder extending through the side of the main body, an air inlet pipe fixedly connected to the end of the filter element cylinder, an air outlet pipe fixedly connected to the top of the main body, a rotating rod rotatably connected to the side of the main body via a bearing, a limiting plate fixedly connected to the surface of the rotating rod, and an arc-shaped plate fixedly connected to the surface of the filter element cylinder. This invention, through the cooperation of the rotating rod, the limiting plate, the arc-shaped plate, and the connecting mechanism, allows for easy and convenient installation and removal of the filter element cylinder during use. It also allows for timely removal when the filter element cylinder needs replacement or cleaning, effectively ensuring the dust removal effect of the device and preventing the dust removal efficiency from being affected by excessive dust adhering to the inner wall of the filter element cylinder.
[0004] However, the above-mentioned equipment has the following problems when in use: it works by fitting the arc plate with the main body of the device, then rotating the rotating rod to make the limiting plate rotate to the surface of the arc plate, and then fixing it through the set connecting mechanism. The rebound force of the set connecting spring pulls the connecting plate, so that the insertion rod is inserted into the arc plate and the limiting plate, thereby completing the fixing function. It is quite troublesome and inconvenient to fix or disassemble the filter cartridge, which will affect the speed of filter replacement. Utility Model Content
[0005] The purpose of this utility model is to provide a filter dust collector that facilitates convenient replacement of the filter element during maintenance.
[0006] To achieve the above objectives, this utility model provides a filter dust collector, including a housing and an auxiliary mechanism;
[0007] The auxiliary mechanism includes a positioning ring, a filter element body, a positioning pin, a limiting plate, a threaded cap, a guide seat, and a connecting device. The positioning ring is detachably connected to the housing and is located inside the air outlet side of the housing. The filter element body has a positioning part, which is slidably inserted into the positioning ring. The positioning pin is threadedly connected to the housing and is arranged in three rings at 120° intervals. The limiting plate is slidably connected to the housing and the positioning pin, and its limiting part is slidably engaged on the end of the filter element body away from the positioning part. The limiting plate is provided with three first ventilation grooves. The guide seat is integrally formed with the threaded cap and is provided with six second ventilation grooves, which abut against the limiting plate. The second ventilation grooves communicate with the first ventilation grooves. The threaded cap is threadedly connected to the housing and is located on one side of the housing. The connecting device is arranged on both sides of the housing.
[0008] The threaded cap has an external hexagonal snap-fit portion.
[0009] The connecting device includes an input pipe and an output pipe. The input pipe is installed on the outside of the air inlet of the threaded cover, and the output pipe is installed on the air outlet of the housing.
[0010] The housing is provided with cleaning doors, and four cleaning doors are evenly spaced in a ring.
[0011] The filter dust collector also includes an anti-loosening mechanism, which includes a fixed platform and a protective plate. The fixed platform is integrally formed with the housing and three of them are arranged at 120° intervals. The protective plate is detachably connected to the fixed platform and abuts against the threaded cover.
[0012] This utility model discloses a filter cartridge dust collector. In use, dust-laden gas is introduced into the housing and filtered by the filter cartridge body before being discharged to achieve dust removal. When maintaining or replacing the filter cartridge body, the inlet side connecting pipe can be disconnected first. Then, the threaded cover can be rotated off directly. Next, the limiting plate can be removed. Finally, the filter cartridge body can be pulled directly. When the positioning part of the filter cartridge body disengages from the positioning ring, continue pulling to remove the filter cartridge body from the housing and complete the disassembly. This facilitates convenient replacement of the filter cartridge body during use. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a schematic diagram of the overall structure of the filter dust collector according to the first embodiment of this utility model.
[0015] Figure 2This is a cross-sectional view of the housing according to the first embodiment of this utility model.
[0016] Figure 3 This is a schematic diagram of the installation position of the positioning pin in the first embodiment of this utility model.
[0017] Figure 4 This is a schematic diagram of the overall structure of the filter dust collector according to the second embodiment of this utility model.
[0018] Figure 5 This is a schematic diagram of the structure of the protective plate according to the second embodiment of this utility model.
[0019] In the diagram: 101-Housing shell, 102-Positioning ring, 103-Filter element body, 104-Positioning pin, 105-Limiting plate, 106-Threaded cap, 107-Guide seat, 108-Positioning part, 109-Second vent groove, 110-First vent groove, 111-External hexagonal snap-fit part, 112-Input pipe, 113-Output pipe, 114-Cleaning door, 201-Fixing platform, 202-Protective plate. Detailed Implementation
[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] Example 1:
[0022] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of a filter dust collector. Figure 2 This is a sectional view of the housing 101. Figure 3 This is a schematic diagram of the installation position of the positioning pin 104. This utility model provides a filter dust collector: including a housing 101 and an auxiliary mechanism. The auxiliary mechanism includes a positioning ring 102, a filter body 103, a positioning pin 104, a limiting plate 105, a threaded cap 106, a guide seat 107, and a connecting device. The connecting device includes an input pipe 112 and an output pipe 113. The aforementioned solution facilitates convenient replacement of the filter body 103 during maintenance. It is understood that the aforementioned solution enables convenient replacement of the filter body 103 during maintenance.
[0023] In this embodiment, the housing 101 is used to cooperate with the filter body 103 for dust removal.
[0024] The positioning ring 102 is detachably connected to the housing 101 and is located inside the air outlet side of the housing 101. The filter element body 103 has a positioning part 108, which is slidably inserted into the positioning ring 102. The positioning pins 104 are threadedly connected to the housing 101 and are arranged in a ring at 120° intervals. The limiting plate 105 is slidably connected to the housing 101 and the positioning pins 104 respectively, and its limiting part is slidably engaged with the filter element body 103. On the end of the positioning part 108, the limiting plate 105 is provided with three first ventilation grooves 110. The guide seat 107 is integrally formed with the threaded cover 106 and is provided with six second ventilation grooves 109, which abut against the limiting plate 105. The second ventilation grooves 109 communicate with the first ventilation grooves 110. The threaded cover 106 is threadedly connected to the housing 101 and is located on one side of the housing 101. The connecting device is provided on both sides of the housing 101. The positioning ring 102 is fixed by bolts, which are arranged from the outside to the inside. The positioning ring 102 has symmetrical rectangular grooves, which slide and engage with the positioning protrusions on the positioning part 108. The external thread end of the positioning pin 104 is directly installed in the threaded through hole on the stepped part of the housing 101. The positioning pin 104 can be installed or removed by rotating it with an Allen wrench. The limiting plate 105 has a mating hole that slides and engages with the positioning pin 104. In actual use, the contact surface between the limiting plate 105 and the housing 101 is provided with an installation groove, and an O-ring seal is provided in the installation groove. At the same time, the sliding hole on the limiting plate 105 that engages with the positioning pin 104 is provided with an installation groove, and an O-ring seal is provided in the installation groove. The first vent groove 110 and the second vent groove 109 are used for ventilation. The guide seat 107 and the threaded cover 106 are integrally formed. The connecting device is used for air inlet and outlet coordination.
[0025] Secondly, the threaded cap 106 has an external hexagonal snap-fit portion 111. This structure facilitates the installation or removal of the threaded cap 106.
[0026] Then, the input pipe 112 is installed on the outside of the air inlet of the threaded cover 106; the output pipe 113 is installed on the air outlet of the housing 101. The input pipe 112 and the output pipe 113 are both I-shaped structures, one end of which can be fixed by bolts, and the other end of which can be connected to the external air inlet or outlet pipe by screws and nuts.
[0027] Finally, the housing 101 is provided with cleaning doors 114, four of which are evenly spaced in a ring. This structure facilitates the cleaning of the filter element body 103. When replacement is no longer needed, the corresponding cleaning door 114 can be directly removed for surface cleaning. The cleaning door 114 is fixed with bolts.
[0028] When using this utility model for convenient replacement of the filter element body 103 during maintenance, dust-laden gas is input through the input pipe 112, passes through the ventilation chamber of the threaded cover 106, and is output through the second ventilation groove 109. The gas then enters the first ventilation groove 110, and finally enters the cavity between the housing 101 and the filter element body 103. After being filtered by the filter element body 103, the gas is discharged, achieving dust removal. When replacing the filter element body 103, the inlet connecting pipe can be disconnected first. Then, the threaded cover 106 can be rotated off. Next, the limiting plate 105 can be removed. Finally, the filter element body 103 can be pulled directly. Once the positioning part 108 of the filter element body 103 disengages from the positioning ring 102, pulling further will remove the filter element body 103 from the housing 101, completing the disassembly. This facilitates convenient replacement of the filter element body 103 during use.
[0029] Example 2:
[0030] like Figure 4 and Figure 5 As shown, where Figure 4 This is a schematic diagram of the overall structure of a filter dust collector. Figure 5 This is a schematic diagram of the structure of the protective plate 202. Based on the first embodiment, this utility model provides a filter dust collector, which also includes an anti-loosening mechanism, which includes a fixing platform 201 and a protective plate 202.
[0031] The fixed platform 201 is integrally formed with the housing 101, and three of them are arranged at 120° intervals. The protective plate 202 is detachably connected to the fixed platform 201 and abuts against the threaded cover 106. The fixed platform 201 is provided with a mounting groove for the mounting part of the protective plate 202 to be inserted and fitted, and the mounting part of the protective plate 202 is provided with a stepped thread for the installation of a limit nut.
[0032] In this embodiment, the fixing platform 201 and the protective plate 202 are used to prevent the threaded cover 106 from loosening. When the threaded cover 106 needs to be disassembled later, the three limiting nuts on the three protective plates 202 need to be removed in advance, and the limiting nuts are also easy to disassemble.
[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A filter cartridge dust collector, comprising a housing, characterized in that: It also includes auxiliary mechanisms; The auxiliary mechanism includes a positioning ring, a filter element body, a positioning pin, a limiting plate, a threaded cap, a guide seat, and a connecting device. The positioning ring is detachably connected to the housing and is located inside the air outlet side of the housing. The filter element body has a positioning part, which is slidably inserted into the positioning ring. The positioning pin is threadedly connected to the housing and is arranged in three rings at 120° intervals. The limiting plate is slidably connected to the housing and the positioning pin, and its limiting part is slidably engaged on the end of the filter element body away from the positioning part. The limiting plate is provided with three first ventilation grooves. The guide seat is integrally formed with the threaded cap and is provided with six second ventilation grooves, which abut against the limiting plate. The second ventilation grooves communicate with the first ventilation grooves. The threaded cap is threadedly connected to the housing and is located on one side of the housing. The connecting device is arranged on both sides of the housing.
2. The filter dust collector as described in claim 1, characterized in that... : The threaded cap has an external hexagonal snap-fit portion.
3. The filter dust collector as described in claim 1, characterized in that... : The connecting device includes an input pipe and an output pipe. The input pipe is installed outside the air inlet of the threaded cover, and the output pipe is installed on the air outlet of the housing.
4. The filter dust collector as described in claim 1, characterized in that... : The housing is provided with cleaning doors, and four cleaning doors are evenly spaced in a ring.
5. The filter dust collector as described in claim 1, characterized in that... : The filter dust collector also includes an anti-loosening mechanism, which includes a fixed platform and a protective plate. The fixed platform is integrally formed with the housing and three of them are arranged at 120° intervals. The protective plate is detachably connected to the fixed platform and abuts against the threaded cover.
Citation Information
Patent Citations
Dust remover with filter element convenient to replace
CN217312513U