Detachable and replaceable air filter

Abstract

The utility model discloses a detachable and replaceable air filter, which relates to the technical field of air filters and comprises an outer box body, a storage frame is arranged in the outer box body in a sliding manner, a plurality of groups of plate frames are movably embedded at the top of the storage frame, a side cover is arranged on the end surface of the storage frame outside the outer box body, and a top cover is movably arranged at the top of the outer box body. A plurality of groups of sealing covers butted with the plate frame are assembled at the top end of the top cover, and the tops of the plurality of groups of sealing covers are connected with a contraction air pipe; a stepped groove is formed in the contact position of the top of the storage frame and the plate frame, and a cloth bag is fixed to the bottom end of the plate frame. When the side cover is pulled to drive the storage frame to extend out of the outer box body, the sealing cover can be automatically unlocked, the sealing cover does not need to be manually detached independently, meanwhile, the plate frame can be slightly lifted in the stepped groove, the horizontal plane of the plate frame is higher than the storage frame, the plate frame and a cloth bag can be conveniently and manually taken down, and the working efficiency is greatly improved. And the aim of efficiently disassembling and assembling the cloth bag is fulfilled.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically a replaceable air filter. Background Technology

[0002] An air filter is an air filtration device that uses porous filter media to capture dust from a gas-solid two-phase flow, thus purifying the gas. Air filters are widely used in cleanrooms, clean factories, laboratories, and clean rooms, as well as for dust prevention in electronic, mechanical, and communication equipment. Air filters are divided into bag filters and non-bag filters. Bag filters mainly filter dust and impurities in the air through cloth bags, with an air extraction device connected to the bag opening.

[0003] A search of the China Patent Network (CN 221267455 U) revealed a replaceable air filter with a rectangular frame inside the side cover. The filter bag and filter bag frame are secured in the mounting groove at the top of the rectangular frame. When replacing the filter, the side cover can be pulled outwards, and the filter bag and filter bag frame can be removed from the rectangular frame for replacement, which is simple and convenient.

[0004] However, the above-mentioned technical solution has certain defects in its application. Since the cover is fixed to the box cover with bolts, there are a lot of bolts that need to be turned when disassembling and assembling it, which makes it take a long time to disassemble the bag. In addition, the top of the bag needs to be pressed and locked to make it stable in the installation groove, which ultimately leads to low efficiency of manual replacement of the bag. Therefore, a replaceable air filter is proposed. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a replaceable air filter to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a replaceable air filter, comprising an outer casing, a storage frame slidably disposed inside the outer casing, multiple sets of plate frames movably embedded in the top of the storage frame, a side cover disposed on the end face of the storage frame outside the outer casing, a top cover movably disposed on the top of the outer casing, and multiple sets of sealing caps that abut against the plate frames are assembled at the top of the top cover, and a constriction air tube is connected to the top of the multiple sets of sealing caps;

[0007] A stepped groove is provided at the top of the storage frame where it contacts the plate frame. A cloth bag is fixed to the bottom of the plate frame. A rubber strip is fixed to the inner wall of the stepped groove near the top. A first frame groove is reserved on the outer wall of the plate frame at the position corresponding to the rubber strip. Two sets of base plates are fixed at the top of the storage frame on both sides of the stepped groove. A base column is fixed to the side of each set of base plates near the stepped groove. Two sets of positioning plates are fixed to the bottom of the constricted air tube near the edge. A stroke groove is provided on the outer wall of each set of positioning plates at the position corresponding to the base column. Two sets of bosses are fixed to the lower inner wall of the stroke groove.

[0008] As a preferred technical solution of the replaceable air filter of this utility model, the side cover is fixedly connected to the end face of the storage frame, and the side cover is detachably connected to the front surface of the outer casing by bolts.

[0009] As a preferred technical solution of the replaceable air filter of this utility model, the top of the top cover is provided with a relief groove that matches the sealing cover, and the top of the outer casing is provided with a notch for the sealing cover and positioning plate to be inserted.

[0010] As a preferred technical solution of the replaceable air filter of this utility model, a second frame groove is reserved in the stepped groove, and a plate strip that contacts the bottom end of the plate frame is movably assembled in the second frame groove.

[0011] As a preferred technical solution of the replaceable air filter of this utility model, an operating groove that communicates with the second frame groove is provided below the second frame groove in the storage frame, and a cone extending into the operating groove is fixed at the bottom end of the plate strip.

[0012] As a preferred technical solution of the replaceable air filter of this utility model, one end of the operation slot extends out of the other end face of the storage frame, and a telescopic rod fixed to the inner wall of the outer box is slidably provided in the operation slot.

[0013] As a preferred technical solution of the replaceable air filter of this utility model, a notch is provided on the outer wall of the telescopic rod at one end near the side cover, and a conical top bar is rotatably connected to the notch by a torsion spring.

[0014] In summary, the present invention has the following main advantages:

[0015] This invention automatically releases the lock on the cover when the storage frame extends from the outer box by pulling the side cover, eliminating the need for manual removal of the cover. At the same time, it allows the frame to rise slightly within the stepped groove, making its horizontal plane higher than the storage frame, which facilitates manual removal of the frame and the bag, achieving efficient disassembly and assembly of the bag. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a three-dimensional exploded view of the present invention;

[0018] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is an unfolded structural diagram of the storage frame of this utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged view at point B in the middle;

[0021] Figure 6 This is a cross-sectional plan view of the storage frame of this utility model.

[0022] In the diagram: 100, outer casing;

[0023] 110. Top cover; 111. Clearance groove; 120. Sealing cover; 121. Positioning plate; 122. Stroke groove; 123. Boss; 130. Constriction air tube; 140. Side cover; 150. Storage frame; 151. Plate frame; 152. First frame groove; 153. Step groove; 154. Rubber strip; 155. Base plate; 156. Base column; 157. Second frame groove; 158. Operating groove; 160. Slat; 161. Conical strip; 170. Telescopic rod; 171. Notch; 172. Conical top strip. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] The embodiments of this utility model will be described below based on its overall structure.

[0026] A replaceable air filter, such as Figures 1 to 6 As shown, it includes an outer casing 100, a storage frame 150 is slidably provided inside the outer casing 100, multiple sets of plate frames 151 are movably embedded on the top of the storage frame 150, a side cover 140 is provided on the end face of the storage frame 150 outside the outer casing 100, a top cover 110 is movably provided on the top of the outer casing 100, multiple sets of sealing caps 120 are assembled on the top of the top cover 110 and docking with the plate frames 151, and a constriction air tube 130 is connected to the top of the multiple sets of sealing caps 120.

[0027] A stepped groove 153 is provided at the contact position between the top of the storage frame 150 and the plate frame 151. A cloth bag is fixed at the bottom of the plate frame 151. A rubber strip 154 ​​is fixed on the inner wall of the stepped groove 153 near the top. A first frame groove 152 is reserved on the outer wall of the plate frame 151 at the corresponding position of the rubber strip 154. Two sets of base plates 155 are fixed at the top of the storage frame 150 on both sides of the stepped groove 153. A base column 156 is fixed on the side of each set of base plates 155 near the stepped groove 153. Two sets of positioning plates 121 are fixed at the bottom of the constricted air tube 130 near the edge. A travel groove 122 is provided on the outer wall of each set of positioning plates 121 at the corresponding position of the base column 156. Two sets of bosses 123 are fixed on the lower inner wall of the travel groove 122.

[0028] A second frame groove 157 is reserved in the stepped groove 153, and a strip 160 that contacts the bottom end of the plate frame 151 is movably installed in the second frame groove 157.

[0029] Below the second frame slot 157, an operation slot 158 ​​is provided in the storage frame 150, which is connected to the second frame slot 157. The bottom end of the strip 160 is fixed with a cone 161 extending into the operation slot 158.

[0030] One end of the operation slot 158 ​​extends out of the other end face of the storage frame 150, and a telescopic rod 170 fixed to the inner wall of the outer box 100 is slidably provided inside the operation slot 158.

[0031] A notch 171 is provided on the outer wall of the telescopic rod 170 and at one end near the side cover 140. A conical top bar 172 is rotatably connected to the notch 171 by a torsion spring.

[0032] The top of the top cover 110 has a relief groove 111 that matches the cover 120, and the top of the outer casing 100 has a notch for the cover 120 and the positioning plate 121 to be inserted.

[0033] Using a screwdriver, the locking effect between the side cover 140 and the outer casing 100 is released, and an external force is applied to the side cover 140 away from the outer casing 100. This will cause the storage frame 150 to slide out from the outer casing 100, and the top base plate 155 will move accordingly. One side base post 156 will slide out from the travel groove 122 and separate from the positioning plate 121. At this time, the positioning plate 121 will no longer be locked. Manually, an upward external force can be applied to the top cover 110 and the sealing cover 120 to complete the separation from the outer casing 100.

[0034] As the storage frame 150 is pulled out to the outside of the outer casing 100, the cone 161 gradually approaches the cone top 172, and the two come into contact, causing the telescopic rod 170 to extend. When the telescopic rod 170 can no longer extend, the storage frame 150 is now completely outside the outer casing 100. Then, the manual continues to apply external force. Because the notch 171 obstructs the cone top 172, it can only rotate in one direction. Therefore, the cone top 172 will exert an upward squeezing force on the cone 161, causing the plate 160 to drag the plate frame 151 up, so that the first frame groove 152 separates from the rubber strip 154, and the bottom end of the plate frame 151 contacts the rubber strip 154. At this time, the top of the plate frame 151 is higher than the storage frame 150, and the manual can easily remove it to complete the replacement.

[0035] Please refer to this carefully. Figure 1 and Figure 2 The side cover 140 is fixedly connected to the end face of the storage frame 150, and the side cover 140 is detachably connected to the front surface of the outer box 100 by bolts.

[0036] This facilitates the later manual disassembly and removal of the cloth bag inside the storage frame 150 for replacement.

[0037] A rubber pad is fixed to the bottom of the cover 120 on the outside of the positioning plate 121.

[0038] The cover 120 has a certain downward space within the top cover 110, thereby ensuring that the mating point is in a sealed state.

[0039] In use, use a screwdriver to release the locking effect between the side cover 140 and the outer box 100, and apply an external force to the side cover 140 away from the outer box 100. This will cause the storage frame 150 to slide out from the outer box 100, and the top base plate 155 will move accordingly. One side base post 156 will slide out from the stroke groove 122 and separate from the positioning plate 121. At this time, the positioning plate 121 will no longer be locked. Manually apply an upward external force to the top cover 110 and the sealing cover 120 to complete the separation from the outer box 100.

[0040] As the storage frame 150 is pulled out to the outside of the outer casing 100, the cone 161 gradually approaches the cone top 172, and the two come into contact, causing the telescopic rod 170 to extend. When the telescopic rod 170 can no longer extend, the storage frame 150 is now completely outside the outer casing 100. Then, the manual continues to apply external force. Because the notch 171 obstructs the cone top 172, it can only rotate in one direction. Therefore, the cone top 172 will exert an upward squeezing force on the cone 161, causing the plate 160 to drag the plate frame 151 up, so that the first frame groove 152 separates from the rubber strip 154, and the bottom end of the plate frame 151 contacts the rubber strip 154. At this time, the top of the plate frame 151 is higher than the storage frame 150, and the manual can easily remove it to complete the replacement.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A replaceable air filter, comprising an outer casing (100), characterized in that: The outer casing (100) has a sliding storage frame (150) inside. The top of the storage frame (150) is movably fitted with multiple sets of plate frames (151). The end face of the storage frame (150) is provided with a side cover (140) outside the outer casing (100). The top of the outer casing (100) is movably provided with a top cover (110). The top of the top cover (110) is equipped with multiple sets of sealing caps (120) that are connected to the plate frames (151). The top of the multiple sets of sealing caps (120) is connected with a constriction air tube (130). A stepped groove (153) is provided at the contact position between the top of the storage frame (150) and the plate frame (151). A cloth bag is fixed to the bottom end of the plate frame (151). A rubber strip (154) is fixed to the inner wall of the stepped groove (153) near the top. A first frame groove (152) is reserved at the corresponding position of the rubber strip (154) on the outer walls of the plate frame (151). The two sides of the stepped groove (153) are located on the storage frame (150). Two sets of substrates (155) are fixed at the top. Each set of substrates (155) has a base column (156) fixed on the side near the stepped groove (153). Two sets of positioning plates (121) are fixed at the bottom end of the constricted air tube (130) near the edge. Each set of positioning plates (121) has a stroke groove (122) on the outer wall corresponding to the base column (156). Two sets of bosses (123) are fixed on the lower inner wall of the stroke groove (122).

2. The replaceable air filter according to claim 1, characterized in that: The side cover (140) is fixedly connected to the end face of the storage frame (150), and the side cover (140) is detachably connected to the front surface of the outer casing (100) by bolts.

3. A replaceable air filter according to claim 1, characterized in that: The top of the top cover (110) is provided with a relief groove (111) that matches the cover (120), and the top of the outer box (100) is provided with a notch for the cover (120) and the positioning plate (121) to be inserted.

4. A replaceable air filter according to claim 1, characterized in that: The stepped groove (153) has a reserved second frame groove (157), and a strip (160) that contacts the bottom end of the plate frame (151) is movably assembled in the second frame groove (157).

5. A replaceable air filter according to claim 4, characterized in that: Below the second frame groove (157), an operation groove (158) is provided in the storage frame (150) and communicates with the second frame groove (157). The bottom end of the strip (160) is fixed with a tapered strip (161) extending into the operation groove (158).

6. A replaceable air filter according to claim 5, characterized in that: One end of the operation slot (158) extends out of the other end face of the storage frame (150), and a telescopic rod (170) fixed to the inner wall of the outer box (100) is slidably provided in the operation slot (158).

7. A replaceable air filter according to claim 6, characterized in that: A notch (171) is provided on the outer wall of the telescopic rod (170) at one end near the side cover (140), and a conical top bar (172) is rotatably connected to the notch (171) by a torsion spring.

Images