Medium efficiency bag filter

Abstract

The utility model relates to and discloses a medium efficiency bag type filter which comprises a filter bag, a rectangular frame and a fixed pressing frame, a plurality of bag bodies in the filter bag respectively penetrate through rectangular through holes in the rectangular frame, and the edge of a bag opening at the top end of the filter bag is fixedly arranged on the rectangular frame through the fixed pressing frame in an extruding mode. The edges of the left and right sides of the rectangular frame and the fixed pressing frame are positioned and connected through positioning and clamping structures, and sliding type clamping mechanisms are arranged between the edges of the front and rear sides of the rectangular frame and the fixed pressing frame; according to the medium-efficiency bag type filter, through the positioning clamping structure and the sliding type clamping mechanism, the filter bag is more convenient and efficient to replace, a screwdriver does not need to be used for dismounting and mounting screws, the replacement process is greatly simplified, the time and labor cost is saved, the maintenance efficiency of the filter is improved, and it is ensured that an air purification system can continuously and stably operate; the air quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medium efficiency filters, and particularly relates to a medium efficiency bag filter. Background Technique

[0002] In the industrial field, various filters are widely used to ensure the purity of air and the requirements of safe production; among these filters, medium efficiency filters occupy an important position with their unique performance and uses. A medium efficiency filter is an air filter, and its working principle is mainly to filter air through materials such as high-efficiency filter paper or glass fiber, so that particulate matter in the air is intercepted, thereby achieving the purpose of purifying air; currently, the main types of medium efficiency filters include bag type medium efficiency filters, plate frame type medium efficiency filters, and combined type medium efficiency filters.

[0003] For the above-mentioned bag type medium efficiency filter, in order to ensure the normal operation of the air purification system and air quality, the filter should be cleaned or replaced regularly. Currently, the replacement of the bag type medium efficiency filter in the prior art is generally to replace the whole or replace the filter bag alone. Among them, the replacement of the filter bag in the bag type medium efficiency filter is generally detachably fixedly connected by four screws and a rectangular pressing frame. That is, when replacing the filter bag in the bag type medium efficiency filter alone, a screwdriver is needed to disassemble and install the screws, and the replacement process is relatively cumbersome; in view of this, this paper proposes a medium efficiency bag filter. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the replacement of the filter bag in the medium efficiency filter in the prior art is relatively cumbersome, and a medium efficiency bag filter is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A medium efficiency bag filter includes a filter bag, a rectangular frame and a fixed pressing frame. A plurality of bag bodies in the filter bag respectively pass through rectangular through holes in the rectangular frame. The edge of the bag mouth at the top of the filter bag is fixedly pressed and installed on the rectangular frame through the fixed pressing frame. The left and right side edges between the rectangular frame and the fixed pressing frame are respectively positioned and connected through a positioning and clamping structure;

[0007] Sliding clamping mechanisms are arranged between the front and rear side edges of the rectangular frame and the fixed pressing frame.

[0008] Preferably, the positioning and clamping structure includes a clamping groove and a spring clamping plate. A clamping strip is fixedly installed on the inner end surface of the lower end of the spring clamping plate. The clamping grooves in the two positioning and clamping structures are respectively arranged on both sides of the rectangular frame, and the spring clamping plates in the two positioning and clamping structures are respectively fixedly installed on both sides of the fixed pressing frame.

[0009] Preferably, the sliding clamping mechanism includes a first guide groove, a second guide groove and two clamping pulleys. The first guide grooves in the two sliding clamping mechanisms are respectively arranged on the front and rear end faces of the rectangular frame, and the second guide grooves in the two sliding clamping mechanisms are respectively arranged on the front and rear edges of the upper surface of the fixed pressing frame. The upper and lower ends of the clamping pulley are respectively installed in the second guide groove and the first guide groove in a rolling manner.

[0010] Preferably, the clamping pulley includes a three-pronged rod, two first bearings and a second bearing. The two first bearings are respectively installed on both sides of the lower end of the three-pronged rod through a first round rod, and the second bearing is installed at the top of the three-pronged rod through a second round rod.

[0011] Preferably, downwardly inclined slopes three are symmetrically arranged on both sides of the second guide groove, a slope four is arranged outside the second guide groove in the fixed pressing frame, upwardly inclined slopes two are symmetrically arranged on both sides of the first guide groove, and slopes one are arranged outside the first guide groove in the rectangular frame.

[0012] Preferably, bumps are fixedly arranged on the lower end faces of the frame and a plurality of pressing strips in the fixed pressing frame.

[0013] Compared with the prior art, the utility model provides a medium-efficiency bag filter, which has the following beneficial effects:

[0014] 1. For this medium-efficiency bag filter, through the positioning and clamping structure and the sliding clamping mechanism, the replacement of the filter bag is more convenient and efficient. There is no need to use a screwdriver to disassemble and install screws, which greatly simplifies the replacement process, saves time and labor costs, improves the maintenance efficiency of the filter, ensures the continuous and stable operation of the air purification system, and guarantees the air quality.

[0015] 2. In this medium-efficiency bag filter, the fixed pressing frame and the rectangular frame adopt a combination of a positioning and clamping structure and a sliding clamping mechanism, which can firmly fix the filter bag, prevent the filter bag from loosening or falling off during use, ensure the stability and reliability of the filtering effect. At the same time, the design of the bumps further enhances the fixing effect of the fixed pressing frame on the filter bag and improves the overall performance of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a medium-efficiency bag filter proposed by the utility model;

[0017] Figure 2 is an exploded view of a medium-efficiency bag filter proposed by the utility model Figure 1 ;

[0018] Figure 3 is an enlarged view of part A of a medium-efficiency bag filter proposed by the utility model;

[0019] Figure 4 An explosion of a medium - efficiency bag - type filter proposed by the present utility model Figure 2 ;

[0020] Figure 5 An enlarged view of part B of a medium - efficiency bag - type filter proposed by the present utility model;

[0021] Figure 6 A schematic diagram of the clamping pulley structure in a medium - efficiency bag - type filter proposed by the present utility model;

[0022] Figure 7 A front view of a medium - efficiency bag - type filter proposed by the present utility model.

[0023] In the figure: 1. Filter bag; 101. X - shaped support; 102. Bag - mouth edge; 2. Rectangular frame; 201. Groove; 202. Support bar; 203. First guiding groove; 204. Card slot; 205. First slope; 206. Second slope; 3. Fixed pressing frame; 301. Pressing strip; 302. Spring clip; 303. Second guiding groove; 304. Card strip; 305. Third slope; 306. Fourth slope; 307. Convex point; 4. Clamping pulley; 401. Trident rod; 402. First round rod; 403. First bearing; 404. Second round rod; 405. Second bearing. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] Referring to the attached Figures 1-7 , a medium - efficiency bag - type filter includes a filter bag 1. A number of mutually parallel X - shaped supports 101 are fixedly installed in each of a number of bag bodies in the filter bag 1. The X - shaped support 101 is mainly used for flexibly supporting the a number of bag bodies in the filter bag 1. The above - mentioned bag bodies are usually made of synthetic fibers or natural fibers, such as polyester fibers, polypropylene fibers, cotton, linen, etc., and have good air permeability and a certain filtration accuracy. The top ends of a number of bag bodies in the filter bag 1 are fixedly connected with a bag - mouth edge 102.

[0027] In this embodiment, the top of the filter bag 1 is connected to a rectangular frame 2, and a plurality of support bars 202 are fixedly installed in the frame of the rectangular frame 2. A groove 201 is provided on the upper surface of the rectangular frame 2, which is in contact with the edge 102 of the bag opening. The depth of the groove 201 is less than the thickness of the bag body of the filter bag 1. A plurality of rectangular perforations are provided between the frame of the rectangular frame 2 and the plurality of support bars 202, and the plurality of bag bodies in the filter bag 1 pass through the rectangular perforations in the rectangular frame 2 respectively.

[0028] In this embodiment, the bag opening edge 102 at the top of the filter bag 1 is fixedly squeezed and installed on the rectangular frame 2 through a fixed pressing frame 3. A number of pressure strips 301 are fixedly installed in the frame of the fixed pressing frame 3. A number of support strips 202 correspond to the number of pressure strips 301 respectively. A convex point 307 is fixedly provided on the lower end surface of the frame of the fixed pressing frame 3 and the number of pressure strips 202.

[0029] In this embodiment, the left and right edges of the rectangular frame 2 and the fixed pressure frame 3 are preliminarily positioned and connected by positioning clamping structures. The positioning clamping structures include a clamping groove 204 and a spring clamping plate 302. A clamping strip 304 is fixedly installed on the inner end surface of the lower end of the spring clamping plate 302. The clamping grooves 204 in the two positioning clamping structures are respectively provided on both sides of the rectangular frame 2, and the spring clamping plates 302 in the two positioning clamping structures are respectively fixedly installed on both sides of the fixed pressure frame 3.

[0030] The above-mentioned spring clamps 302 are made of aluminum alloy and have a certain elasticity. That is, when the spring clamps 302 on the left and right sides of the fixed pressure frame 3 are aligned and pressed down to be clamped into the two clamping grooves 204 in the rectangular frame 2, the lower ends of the two spring clamps 302 can be compressed and deformed. The clamping strips 304 on the inner sides of the two spring clamps 302 are respectively clamped into the two clamping grooves 204 in the rectangular frame 2 to complete the preliminary connection between the rectangular frame 2 and the fixed pressure frame 3. Similarly, the fixed pressure frame 3 can be removed by holding the lower ends of the two spring clamps 302 and slightly bending them outward.

[0031] In this embodiment, a sliding clamping mechanism is provided between the front and rear edges of the rectangular frame 2 and the fixed pressure frame 3. The sliding clamping mechanism includes a guide groove 1 203, a guide groove 2 303, and two clamping pulleys 4. The guide grooves 1 203 of the two sliding clamping mechanisms are respectively provided on the front and rear end surfaces of the rectangular frame 2. The guide grooves 2 303 of the two sliding clamping mechanisms are respectively provided on the front and rear edges of the upper surface of the fixed pressure frame 3. The upper and lower ends of the clamping pulley 4 are respectively rotatably mounted in the guide groove 2 303 and the guide groove 1 203.

[0032] The clamping pulley 4 includes a three-pronged rod 401, two first bearings 403 and a second bearing 405. The two first bearings 403 are respectively installed on both sides of the lower end of the three-pronged rod 401 through a first round rod 402, that is, the inner ring of the first bearing 403 is fixedly connected to the three-pronged rod 401. The second bearing 405 is installed at the top of the three-pronged rod 401 through a second round rod 404, and the inner ring of the second bearing 405 is fixedly connected to the three-pronged rod 401. The outer rings of the first bearing 403 and the second bearing 405 are both rotatably connected to the three-pronged rod 401. When the two first bearings 403 in the clamping pulley 4 are rollingly installed in the first guide groove 203 in the rectangular frame 2 and the second bearing 405 in the clamping pulley 4 is rollingly installed in the second guide groove 303 in the fixed pressing frame 3, the two first bearings 403 and the second bearing 405 in the clamping pulley 4 respectively fixedly clamp and install the rectangular frame 2 and the fixed pressing frame 3 on the upper and lower sides of the bag mouth edge 102 of the filter bag 1, and densely squeeze a plurality of bumps 307 on the lower end surface of the fixed pressing frame 3 against the bag mouth edge 102 of the groove 201 in the rectangular frame 2, so that the fixed pressing frame 3 can more stably fixedly install the bag mouth edge 102 of the filter bag 1 on the rectangular frame 2.

[0033] In this embodiment, downwardly inclined slopes three 305 are symmetrically arranged on both sides of the second guide groove 303, a slope four 306 is arranged outside the second guide groove 303 in the fixed pressing frame 3, upwardly inclined slopes two 206 are symmetrically arranged on both sides of the first guide groove 203, and slopes one 205 are arranged outside the first guide groove 203 in the rectangular frame 2.

[0034] In the present utility model, first, through the elastic deformation of the two spring clamping plates 302 in the fixed pressing frame 3, and then in cooperation with the clamping strips 304 connected to the inner sides of the two spring clamping plates 302, it is convenient to quickly clamp and disassemble the left and right sides of the rectangular frame 2 and the fixed pressing frame 3. The above two positioning and clamping structures can assist in restricting and positioning between the rectangular frame 2 and the fixed pressing frame 3;

[0035] Then, the four clamping pulleys 4 in the sliding clamping mechanism are respectively slidably clamped and installed in the first guide groove 203 and the second guide groove 303 at the four corners of the rectangular frame 2 and the fixed pressing frame 3 from the four corners of the rectangular frame 2, so as to complete the clamping of the four corners of the rectangular frame 2 and the fixed pressing frame 3 by the four clamping pulleys 4, making the replacement of the filter bag 1 more convenient and efficient. There is no need to use a screwdriver to disassemble and install screws, which greatly simplifies the replacement process, saves time and labor costs, improves the maintenance efficiency of the filter, ensures the continuous and stable operation of the air purification system, and guarantees the air quality;

[0036] Moreover, the fixed pressing frame and the rectangular frame in the medium-efficiency bag filter adopt a combination of a positioning clamping structure and a sliding clamping mechanism, which can firmly fix the filter bag 1, prevent the filter bag 1 from loosening or falling off during use, ensure the stability and reliability of the filtration effect. At the same time, the design of the convex points 307 further enhances the fixing effect of the fixed pressing frame 3 on the filter bag 1 and improves the overall performance of the filter.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A medium-efficiency bag filter, comprising a filter bag (1), a rectangular frame (2) and a fixed pressing frame (3). A plurality of bag bodies in the filter bag (1) respectively pass through rectangular perforations in the rectangular frame (2). The bag mouth edge (102) at the top end of the filter bag (1) is fixedly pressed and installed on the rectangular frame (2) through the fixed pressing frame (3), and is characterized in that: The left and right side edges between the rectangular frame (2) and the fixed pressing frame (3) are respectively positioned and connected through a positioning and clamping structure; Sliding clamping mechanisms are arranged between the front and rear side edges of the rectangular frame (2) and the fixed pressing frame (3).

2. The medium-efficiency bag filter according to claim 1, wherein: The positioning and clamping structure includes a clamping groove (204) and a spring clamping plate (302). A clamping bar (304) is fixedly installed on the inner end face of the lower end of the spring clamping plate (302). The clamping grooves (204) in the two positioning and clamping structures are respectively arranged on both sides of the rectangular frame (2), and the spring clamping plates (302) in the two positioning and clamping structures are respectively fixedly installed on both sides of the fixed pressing frame (3).

3. The medium-efficiency bag filter according to claim 1, characterized in that: The sliding clamping mechanism includes a first guiding groove (203), a second guiding groove (303) and two clamping pulleys (4). The first guiding grooves (203) in the two sliding clamping mechanisms are respectively arranged on the front and rear end faces of the rectangular frame (2), the second guiding grooves (303) in the two sliding clamping mechanisms are respectively arranged on the front and rear edges of the upper surface of the fixed pressing frame (3), and the upper and lower ends of the clamping pulley (4) are respectively installed in the second guiding groove (303) and the first guiding groove (203) in a rolling manner.

4. The medium-efficiency bag filter according to claim 3, characterized in that: The clamping pulley (4) includes a three-pronged rod (401), two first bearings (403) and a second bearing (405). The two first bearings (403) are respectively installed on both sides of the lower end of the three-pronged rod (401) through a first round rod (402), and the second bearing (405) is installed on the top end of the three-pronged rod (401) through a second round rod (404).

5. The medium efficiency bag filter according to claim 3, wherein: Sloping ramps three (305) that slope downward are symmetrically arranged on both sides of the second guiding groove (303). A sloping ramp four (306) is arranged outside the second guiding groove (303) in the fixed pressing frame (3). Sloping ramps two (206) that slope upward are symmetrically arranged on both sides of the first guiding groove (203), and sloping ramps one (205) are arranged outside the first guiding groove (203) in the rectangular frame (2).

6. The medium-efficiency bag filter according to claim 1, wherein: Convex points (307) are fixedly arranged on the lower end faces of the frame border and several pressing strips (301) in the fixed pressing frame (3).

Images