A box-type air filter

Abstract

The application belongs to the technical field of box filters, in particular to a box air filter, which comprises a box body, a rotating frame rotatably connected inside the box body, a filter plate slidably connected inside the rotating frame, a rotating rod rotatably and slidably connected inside the rotating frame, a sliding groove arranged inside the rotating rod, a plurality of air filter elements arranged inside the box body, a positioning hole arranged on the inner wall of the rotating frame, a plug rod fixedly connected to one side of the filter plate, and a driving assembly arranged on the upper surface of the box body, which is used to drive the rotating rod to rotate and slide inside the rotating frame. The arrangement of the rotating frame and the rotating rod reduces the maintenance difficulty and time cost, improves the maintenance efficiency, and reduces the downtime caused by maintenance.

Description

Technical Field

[0001] This invention belongs to the field of box-type filter technology, specifically a box-type air filter. Background Technology

[0002] Air chamber filters are a type of air purification device commonly used in ventilation and air conditioning systems. They are mainly used to remove particulate matter from the air, such as dust, pollen, bacteria, and industrial dust, and are widely used in industrial, commercial, and clean environments.

[0003] A patent with publication number CN119680304B discloses a box-type air filter, including an outer frame, an inner frame, a filter plate, an installation mechanism, and an adjustment mechanism. The outer frame and the inner frame are fixedly connected on their adjacent sides. The filter plate is located inside the inner frame. A protective frame is installed on the surface of the outer frame. The adjustment mechanism is located on the side wall of the inner frame corresponding to the filter plate. The adjustment mechanism includes two fixed rails and an adjustment block. The two fixed rails are respectively located on both sides of the inner wall of the inner frame, and one side of the fixed rail is fixedly connected to the side wall surface of the inner frame.

[0004] The aforementioned existing box-type air filter can be adjusted and fixed through an adjustment mechanism, allowing for efficient and convenient air filtration of the filter plate in the inner frame.

[0005] In the existing box-type filters, when the air filter element needs to be disassembled, the outer protective frame must be removed before the inner air filter element can be disassembled. The user needs to repeatedly operate the four corner limiters of the protective frame and release them one by one. The above operation is cumbersome and complicated, which increases the downtime for maintenance and causes a decrease in the maintenance efficiency of the box-type filter.

[0006] Therefore, the present invention provides a box-type air filter. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by the present invention to solve its technical problem is as follows: A box-type air filter of the present invention includes a box body, a rotating frame rotatably connected inside the box body, a filter plate slidably connected inside the rotating frame, a rotating rod rotatably and slidably connected inside the rotating frame, a sliding groove provided inside the rotating rod, a plurality of air filter elements provided inside the box body, positioning holes provided on the inner wall of the rotating frame, a rod fixedly connected to one side of the filter plate, and a driving assembly provided on the upper surface of the box body, which is used to drive the rotating rod to rotate and slide inside the rotating frame.

[0009] Preferably, the surface of the rotating rod is fixedly connected with a plurality of tooth columns, the inside of the rotating frame is slidably connected with a tooth groove, and the tooth columns and the tooth groove are engaged with each other.

[0010] Preferably, the driving assembly comprises a cover plate fixedly connected to the upper surface of the box body, a tooth rack slidably connected to the inside of the cover plate, and a tooth gear rotatably connected to the inside of the cover plate, the tooth rack and the tooth gear are engaged with each other, and the inside of the tooth gear and the surface of the rotating rod are slidably and rotatably connected.

[0011] Preferably, the tooth gear comprises a first limiting section, one side of the first limiting section is provided with an engaging section, one side of the engaging section is provided with a second limiting section, and in an initial state, one end of the first limiting section is attached to one side of the tooth rack.

[0012] Preferably, a lead screw is rotatably connected to the inside of the cover plate, a moving block is threadedly connected to the surface of the lead screw, the moving block and the inner lower surface of the cover plate are slidably connected, one end of the moving block and one end of the tooth rack are fixedly connected, a motor is fixedly connected to the inside of the cover plate, and the output end of the motor and one end of the lead screw are fixedly connected.

[0013] Preferably, one end of the rotating rod is fixedly connected with a jacking rod, both ends of the jacking rod are provided with a ball, the upper surface of the tooth rack comprises a first plane, one side of the first plane is provided with a second plane, one side of the second plane is provided with a third plane, and the heights of the first plane, the second plane and the third plane are sequentially increased.

[0014] Preferably, the surface of the rotating rod is fixedly connected with a baffle, the push plate is rotatably connected between the baffles, the push plate and the inner wall of the cover plate are slidably connected, and the spring is fixedly connected between the push plate and the cover plate.

[0015] Preferably, the surface of the rotating rod is fixedly connected with a sealing plate, the sealing plate is attached to the inner wall of the rotating rod, and the thickness of the sealing plate and the size of the positioning hole are matched.

[0016] Preferably, the inner upper surface of the cover plate is fixedly connected with a limiting plate, and one end of the jacking rod is attached to the lower surface of the limiting plate.

[0017] Preferably, the upper surface of the moving block is fixedly connected with a pointer, and the outer surface of the cover plate is provided with a plurality of scale lines.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The box type air filter, by setting up the rotating frame and the rotating rod, when the air filter element inside the box needs to be replaced, drive the screw rod to rotate, the screw rod drives the moving block to move, the moving block drives the rack to slide synchronously, the rack and the gear are engaged, so that the gear drives the rotating rod to rotate synchronously, the rotating rod drives the rotating frame to rotate by 90 degrees, the rotating frame changes from the transverse state to the vertical state, that is, the side of the box can be opened, then the staff can take out the air filter element between the rotating frames and replace it, after replacement, the air filter element can be positioned through the gap between the rotating frames, through the setting of the rotating frame and the rotating rod, the staff can quickly open the side of the box, directly contact the air filter element and quickly replace it, so that the replacement process of the air filter element becomes simple and fast, without disassembling the entire front panel of the box or using complex tools, the maintenance difficulty and time cost are reduced, the maintenance efficiency is improved, and the downtime caused by maintenance is reduced.

[0020] 2. The box type air filter, by setting up the rotating rod and the filter plate, in normal state, the filter plate is installed inside the rotating frame and filters the air inlet on one side of the box, when the filter plate needs to be replaced, the rotating rod can be driven to slide upward after the rotating frame drives the filter plate to rotate from the transverse state to the vertical state, the rotating rod drives the sliding groove to slide upward, so that one end of the insertion rod is in the sliding groove, and the sliding groove contacts the insertion rod, then the user can slide the insertion rod and the filter plate out of the positioning hole and the sliding groove, so that the filter plate can be disassembled, through the cooperation of the rotating rod and the sliding groove, the disassembly process of the filter plate becomes simple and fast, without using complex tools or performing tedious steps, the maintenance difficulty and time cost are reduced.

[0021] 3. The box type air filter, when the filter plate is disassembled and cleaned, since the positioning hole is exposed to the outside, dust from the outside can enter the inside of the rotating frame through the positioning hole and accumulate in the sliding groove, in order to avoid the above problem, when the filter plate is disassembled, the rotating rod is driven to move upward again, the rotating rod drives the sealing plate to move upward, the sealing plate and the inner wall of the rotating frame are matched in size, the sealing plate moves upward to the positioning hole and seals the positioning hole, the upward movement of the sealing plate can exhaust the air in the rotating frame through the positioning hole, the airflow can blow the dust in the positioning hole and the sliding groove, by sealing the positioning hole with the sealing plate, the dust and impurities from the outside are effectively prevented from entering the inside of the rotating frame through the positioning hole, and the pollution of the sliding groove and the internal components is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below with reference to the drawings.

[0023] Figure 1 is a schematic diagram of the overall structure of the application;

[0024] Figure 2It is the air filter element dismounting mechanism schematic view of the present application;

[0025] Figure 3 It is the internal structure section view of the cover plate of the present application;

[0026] Figure 4 It is the front structure section view of the cover plate and the box of the present application;

[0027] Figure 5 It is the local structure schematic view of the rotating frame, filter plate and rotating rod of the present application;

[0028] Figure 6 It is the structure schematic view of the rack and pinion engagement of the present application;

[0029] Figure 7 It is the structure schematic view of the rack and pinion of the present application;

[0030] Figure 8 It is the limiting structure schematic view of the rotating rod and filter plate of the present application;

[0031] Figure 9 It is the structure schematic view of the rotating rod, filter plate and rotating frame of the present application;

[0032] In the figure: 1, box; 2, cover plate; 21, motor; 22, screw rod; 23, moving block; 231, pointer; 24, rack; 241, first plane; 242, second plane; 243, third plane; 25, pinion; 251, first limiting section; 252, engagement section; 253, second limiting section; 26, push plate; 261, spring; 27, limiting plate; 28, scale line; 3, rotating frame; 31, positioning hole; 32, tooth slot; 4, filter plate; 41, insertion rod; 5, air filter element; 6, rotating rod; 61, tooth column; 62, baffle; 63, jacking rod; 64, sliding slot; 65, sealing plate. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0034] Embodiment one: as Figures 1 to 9As shown, the box type air filter provided by the embodiment of the present application comprises a box body 1, a rotating frame 3 rotatably connected inside the box body 1, a filter plate 4 slidably connected inside the rotating frame 3, a rotating rod 6 rotatably and slidably connected inside the rotating frame 3, a sliding groove 64 arranged inside the rotating rod 6, a plurality of air filter elements 5 arranged inside the box body 1, a positioning hole 31 arranged on the inner wall of the rotating frame 3, a plug rod 41 fixedly connected to one side of the filter plate 4, and a driving assembly arranged on the upper surface of the box body 1 and used to drive the rotating rod 6 to rotate and slide inside the rotating frame 3. An air discharge port is formed in the rear end surface of the box body 1.

[0035] Specifically, when the existing part of the box type filter is replaced, the filter plate 4 in front of the box body 1 needs to be disassembled, and then the air filter element 5 is taken out from the inside of the box body 1. The filter plate 4 is generally locked with the box body 1 by means of bolts. When the air filter element 5 is replaced, a plurality of fasteners need to be disassembled with the aid of tools, which increases the working intensity of the workers and increases the downtime of maintenance, thereby reducing the maintenance efficiency of the box type filter.

[0036] In order to avoid the above technical problems, the device is used as follows: when air needs to be filtered, large impurities carried by external air are preliminarily filtered by the filter plate 4, and then the air enters the inside of the box body 1, the air contacts the air filter element 5, the air filter element 5 filters the impurities in the air again, and then the filtered air is discharged through the other end surface of the box body 1.

[0037] When the air filter element 5 needs to be replaced and maintained after long-term use, the rotating rod 6 can be driven to rotate, the rotating rod 6 drives the rotating frame 3 to synchronously rotate, the rotating frame 3 drives the filter plate 4 inside the rotating frame 3 to synchronously rotate, so that the filter plate 4 is changed from a horizontal state to a vertical state by 90 degrees, at this time, the filter plate 4 has a disassembly space between them, and the user can take out the air filter element 5 from the disassembly area between the filter plate 4 for replacement operation.

[0038] When the air filter element 5 needs to be installed, the filter plate 4 can be used for positioning operation of the air filter element 5, and when the air filter element 5 is positioned and placed in the inside of the box body 1, the rotating frame 3 drives the filter plate 4 to rotate, the filter plate 4 presses one side of the air filter element 5, and the filter plate 4 can complete the fixing operation of the air filter element 5.

[0039] The device is provided with the rotating frame 3 and the rotating rod 6, so that the staff can quickly open one side of the box body 1, directly contact the air filter element 5 and quickly replace the air filter element 5, so that the replacement process of the air filter element 5 becomes simple and fast, without disassembling the front panel of the whole box body 1 or using complex tools, thereby reducing the maintenance difficulty and time cost, improving the maintenance efficiency, reducing the downtime caused by maintenance, and when the air filter element 5 is installed, the filtering plate 4 can realize the positioning and fixing effect, and after the installation is completed, the filtering plate 4 is driven to rotate by the rotating frame 3, so that the filtering plate 4 forms a louver-like mechanism, thereby uniformly distributing the airflow direction.

[0040] As shown in Figure 9 The surface of the rotating rod 6 is fixedly connected with a plurality of tooth columns 61, the inside of the rotating frame 3 is slidably connected with a tooth groove 32, and the tooth column 61 and the tooth groove 32 are meshed with each other.

[0041] Specifically, when the rotating rod 6 rotates, the rotating rod 6 drives the tooth column 61 to rotate, the tooth column 61 and the tooth groove 32 are meshed with each other, so that the rotating rod 6 drives the rotating frame 3 to synchronously rotate, and when the tooth column 61 slides in the tooth groove 32, the tooth column 61 remains in the meshing state with the tooth groove 32.

[0042] As shown in Figure 2 and Figure 3 The driving assembly comprises a cover plate 2 fixedly connected to the upper surface of the box body 1, a tooth bar 24 slidably connected to the inside of the cover plate 2, and a gear 25 rotatably connected to the inside of the cover plate 2, the tooth bar 24 and the gear 25 are meshed with each other, and the inside of the gear 25 and the surface of the rotating rod 6 are slidably and rotatably connected.

[0043] As shown in Figure 5 and Figure 7 The gear 25 comprises a first limiting section 251, one side of the first limiting section 251 is provided with an engagement section 252, one side of the engagement section 252 is provided with a second limiting section 253, and one end of the first limiting section 251 is attached to one side of the tooth bar 24 in the initial state.

[0044] As shown in Figure 5 The inside of the cover plate 2 is rotatably connected with a lead screw 22, the surface of the lead screw 22 is threadedly connected with a moving block 23, the moving block 23 and the inner lower surface of the cover plate 2 are slidably connected, one end of the moving block 23 and one end of the tooth bar 24 are fixedly connected, the inside of the cover plate 2 is fixedly connected with a motor 21, and the output end of the motor 21 and one end of the lead screw 22 are fixedly connected.

[0045] Specifically, when the rotating rod 6 needs to be driven to rotate, the motor 21 can be turned on, the motor 21 drives the screw rod 22 to rotate, the screw rod 22 drives the moving block 23 on the surface of the screw rod 22 to slide in the cover plate 2, the moving block 23 drives the rack 24 to slide to one side of the motor 21, in the initial state, the first limiting section 251 of the gear 25 is located on the smooth surface of the rack 24, when the rack 24 slides, the first limiting section 251 slides on the side surface of the rack 24, and the gear 25 does not rotate, when the teeth of the rack 24 move to the first limiting section 251, the teeth of the rack 24 push the first limiting section 251, so that the gear 25 rotates, and the teeth of the rack 24 and the meshing section 252 are meshed with each other, so that the gear 25 drives the rotating rod 6 to rotate synchronously, when the meshing section 252 rotates to the second limiting section 253, one side of the second limiting section 253 is attached to the smooth surface of the rack 24, and the rack 24 is limited to the gear 25 through the second limiting section 253, at this time, the rotating rod 6 can be driven to drive the rotating frame 3 to rotate synchronously, so that the rotating frame 3 drives the filter plate 4 to rotate from the horizontal state to the vertical state.

[0046] Embodiment two: as shown in the embodiment one, wherein another embodiment of the present application is: one end of the rotating rod 6 is fixedly connected with a top rod 63, both ends of the top rod 63 are provided with balls, the upper surface of the rack 24 comprises a first plane 241, one side of the first plane 241 is provided with a second plane 242, one side of the second plane 242 is provided with a third plane 243, and the heights of the first plane 241, the second plane 242 and the third plane 243 are increased in turn. Figure 7 As shown in the embodiment one, the surface of the rotating rod 6 is fixedly connected with a baffle 62, the baffle 62 is rotatably connected with a push plate 26, the push plate 26 and the inner wall of the cover plate 2 are slidably connected, and the push plate 26 and the cover plate 2 are fixedly connected with a spring 261.

[0047] Figure 5 Specifically, when the filter plate 4 is used for a long time, impurities will be attached to the surface of the filter plate 4, and when the impurities accumulate too much, the filter plate 4 may be blocked, which reduces the air inlet efficiency and causes the problem of low filtering efficiency of the air filter. The existing air filter disassembles the filter plate 4 through bolts, which is complicated and increases the maintenance difficulty, thereby reducing the maintenance efficiency.

[0048] Specifically, when the filter plate 4 is used for a long time, impurities will be attached to the surface of the filter plate 4, and when the impurities accumulate too much, the filter plate 4 may be blocked, which reduces the air inlet efficiency and causes the problem of low filtering efficiency of the air filter. The existing air filter disassembles the filter plate 4 through bolts, which is complicated and increases the maintenance difficulty, thereby reducing the maintenance efficiency.

[0049] ​In order to avoid the above technical problems, the device is used as follows: when the filter plate 4 needs to be disassembled, when one side of the second limiting section 253 and one side of the smooth surface of the rack 24 are in contact, the gear 25 is limited by the rack 24 at this time, and at the same time the top rod 63 is rotated by the rotating rod 6, one end of the top rod 63 is separated from the lower surface of the limiting plate 27, the other end of the top rod 63 is rotated to the first plane 241 of the rack 24, and as the rack 24 continues to slide, the top rod 63 moves to the second plane 242 of the rack 24, so that the top rod 63 drives the rotating rod 6 to slide in the inside of the rotating frame 3, the top rod 63 drives the rotating rod 6 to slide to the inside of the cover plate 2, so that the rotating rod 6 drives the baffle 62 to rise synchronously, the baffle 62 drives the push plate 26 to rise synchronously, and the push plate 26 stretches the spring 261 to move synchronously;

[0050] In the initial state, the insertion rod 41 on one side of the filter plate 4 is located at the uppermost position of the sliding groove 64, and the insertion rod 41 and the sliding groove 64 cooperate to limit the filter plate 4, so that the filter plate 4 is fixed with the rotating frame 3, when the rotating rod 6 slides upward, the rotating rod 6 drives the sliding groove 64 to move upward synchronously, so that the insertion rod 41 is away from the upper side of the sliding groove 64, and the insertion rod 41 is located between the sliding grooves 64, and the sliding grooves 64 contact the limiting operation of the insertion rod 41, then the staff can pull out the filter plate 4 from the positioning hole 31 in the inside of the rotating frame 3, and the disassembly operation of the filter plate 4 is completed;

[0051] When the filter plate 4 needs to be installed, the insertion rod 41 of the filter plate 4 is aligned with the positioning hole 31, then the rack 24 is driven to slide, so that the top rod 63 slides from the second plane 242 to the first plane 241, at this time the spring 261 drives the push plate 26 to descend, the push plate 26 drives the baffle 62 to descend, the baffle 62 drives the rotating rod 6 to reset and slide, the rotating rod 6 drives the sliding groove 64 to slide downward, and the upper surface of the sliding groove 64 is in contact with the upper surface of the insertion rod 41, at this time the limiting operation of the filter plate 4 is completed.

[0052] As shown in Figure 8 and Figure 9 The surface of the rotating rod 6 is fixedly connected with a sealing plate 65, the sealing plate 65 is in close contact with the inner wall of the rotating rod 6, the thickness of the sealing plate 65 matches the size of the positioning hole 31, and the inside of the sealing plate 65 is provided with a one-way valve.

[0053] Specifically, after the filter plate 4 is disassembled and cleaned, the position of the positioning hole 31 is exposed to the outside, so that foreign matters enter the inside of the rotating frame 3 through the positioning hole 31, when the foreign matters enter the inside of the rotating frame 3 and contact the upper surface in the sliding groove 64, the distance between the sliding grooves 64 changes, so that the upper surface of the insertion rod 41 is difficult to contact the upper surface in the sliding groove 64, which leads to the decrease of the limiting stability of the filter plate 4, so that it is difficult to limit and fix the filter plate 4;

[0054] In order to avoid the above technical problems, the device is used as follows: when the filter plate 4 is completely disassembled, the rack 24 can be driven to slide again, so that the top rod 63 slides to the third plane 243, so that the top rod 63 drives the rotating rod 6 to rise again, the rotating rod 6 drives the sealing plate 65 to move upwards, the sealing plate 65 slides on the inner wall of the rotating frame 3, the sealing plate 65 slides to the positioning hole 31, and the sealing plate 65 can block the positioning hole 31. When the sealing plate 65 moves upwards, the sealing plate 65 forms a piston on the inner wall of the rotating frame 3, the sealing plate 65 moves upwards, the one-way valve is closed, the sealing plate 65 pushes the airflow towards the positioning hole 31, the dust between the positioning hole 31 and the sliding groove 64 is driven by the airflow and discharged from the positioning hole 31. When the sealing plate 65 resets downward, the one-way valve opens, and it is difficult to form negative pressure at the positioning hole 31, so it is difficult to suck dust.

[0055] The device blocks the positioning hole 31 by the sealing plate 65, effectively prevents dust and impurities from the outside from entering the inside of the rotating frame 3 through the positioning hole 31, and avoids the problem that the distance between the sliding grooves 64 changes, resulting in a decrease in the limiting stability of the filter plate 4.

[0056] As shown in Figure 4 and Figure 6 , the inner upper surface of the cover plate 2 is fixedly connected with a limiting plate 27, and one end of the top rod 63 is in close contact with the lower surface of the limiting plate 27.

[0057] Specifically, when one end of the top rod 63 rotates to the first plane 241, the limiting plate 27 releases the limiting operation on the top rod 63. When the top rod 63 resets and rotates, the limiting plate 27 limits one end of the top rod 63, avoids the vibration caused by external collision, and causes the rotating rod 6 to reciprocate up and down, thereby causing the filter plate 4 to be fixed and stable.

[0058] As shown in Figure 1 and Figure 2 , the upper surface of the moving block 23 is fixedly connected with a pointer 231, and the outer surface of the cover plate 2 is provided with a plurality of scale lines 28.

[0059] Specifically, the staff slides the moving block 23, the moving block 23 drives the pointer 231 to move, and the user can observe the pointer 231 at a certain stage of the scale line 28 to realize the disassembly of the air filter element 5 and the filter plate 4, and the blocking operation of the positioning hole 31.

[0060] Working principle: when air needs to be filtered, large impurities carried by the outside air are preliminarily filtered by the filter plate 4, then the air enters the inside of the box body 1, the air contacts the air filter element 5, the air filter element 5 filters the impurities in the air again, and then the filtered air is discharged through the other end face of the box body 1.

[0061] When the air filter 5 needs to be replaced and maintained for long-term use, the motor 21 can be turned on to drive the screw rod 22 to rotate, and the moving block 23 on the surface of the screw rod 22 slides in the inside of the cover plate 2. The moving block 23 drives the rack 24 and the pointer 231 to slide to one side of the motor 21. The user can determine the movement distance of the rack 24 by observing the pointer 231 at a certain stage of the scale line 28. In the initial state, the first limiting section 251 of the gear 25 is located on the smooth surface of the rack 24. When the rack 24 slides, the first limiting section 251 slides on the side surface of the rack 24, and the gear 25 does not rotate. When the teeth of the rack 24 move to the first limiting section 251, the teeth of the rack 24 push the first limiting section 251 to make the gear 25 rotate, and the teeth of the rack 24 and the meshing section 252 are engaged with each other, so that the gear 25 drives the rotating rod 6 to rotate synchronously. The rotating rod 6 drives the tooth column 61 to rotate, and the tooth column 61 and the tooth groove 32 are engaged with each other, so that the rotating rod 6 drives the rotating frame 3 to rotate synchronously. The rotating frame 3 drives the filter plate 4 inside it to rotate synchronously, so that the filter plate 4 rotates by ninety degrees from the horizontal state to the vertical state. At this time, the filter plate 4 has a disassembly space between them, and the user can take out the air filter 5 from the disassembly area between the filter plate 4 for replacement operation;

[0062] When the air filter 5 needs to be installed, the filter plate 4 can be used for positioning operation of the air filter 5. When the air filter 5 is completely positioned and placed in the inside of the box body 1, the rotating frame 3 is driven to rotate the filter plate 4, and the filter plate 4 presses one side of the air filter 5. The filter plate 4 can complete the fixing operation of the air filter 5.

[0063] When the meshing section 252 rotates to the second limiting section 253, the second limiting section 253 is attached to the smooth surface on one side of the rack 24, and the rack 24 limits the gear 25 through the second limiting section 253. The rotating rod 6 drives the top rod 63 to rotate, and one end of the top rod 63 is separated from the lower surface of the limiting plate 27. The other end of the top rod 63 rotates to the first plane 241 of the rack 24. As the rack 24 continues to slide, the top rod 63 moves to the second plane 242 of the rack 24, so that the top rod 63 drives the rotating rod 6 to slide in the inside of the rotating frame 3. The top rod 63 drives the rotating rod 6 to slide to the inside of the cover plate 2, so that the rotating rod 6 drives the baffle 62 to rise synchronously. The baffle 62 drives the push plate 26 to rise synchronously, and the push plate 26 drives the spring 261 to move synchronously.

[0064] In the initial state, the insertion rod 41 on one side of the filter plate 4 is located at the uppermost of the sliding groove 64, and the insertion rod 41 and the sliding groove 64 cooperate to limit the filter plate 4, so that the filter plate 4 is fixed with the rotating frame 3, when the rotating rod 6 slides upward, the rotating rod 6 drives the sliding groove 64 to move upward synchronously, so that the insertion rod 41 is away from the upper side of the sliding groove 64, and the insertion rod 41 is located between the sliding grooves 64, and the sliding groove 64 contacts the limiting operation of the insertion rod 41, then the staff can pull out the filter plate 4 from the positioning hole 31 in the rotating frame 3, that is, the dismounting operation of the filter plate 4 can be completed;

[0065] When the filter plate 4 needs to be installed, the insertion rod 41 of the filter plate 4 is aligned with the positioning hole 31, then the rack 24 is driven to slide, so that the top rod 63 slides from the second plane 242 to the first plane 241, at this time the spring 261 drives the push plate 26 to descend, the push plate 26 drives the baffle 62 to descend, the baffle 62 drives the rotating rod 6 to reset and slide, the rotating rod 6 drives the sliding groove 64 to slide downward, and the upper surface of the sliding groove 64 contacts the upper surface of the insertion rod 41, at this time the limiting operation of the filter plate 4 can be completed;

[0066] When the filter plate 4 is completely dismounted, the rack 24 can be driven to slide again, so that the top rod 63 slides to the third plane 243, so that the top rod 63 drives the rotating rod 6 to rise again, the rotating rod 6 drives the sealing plate 65 to move upward, the sealing plate 65 slides on the inner wall of the rotating frame 3, the sealing plate 65 slides to the positioning hole 31, and the sealing plate 65 can block the positioning hole 31, when the sealing plate 65 moves upward, the sealing plate 65 forms a piston on the inner wall of the rotating frame 3, the sealing plate 65 moves upward, the one-way valve is closed, the sealing plate 65 pushes the airflow to the positioning hole 31, the dust between the positioning hole 31 and the sliding groove 64 is driven by the airflow and discharged from the positioning hole 31, when the sealing plate 65 resets downward, the one-way valve is opened, and it is difficult to form negative pressure at the positioning hole 31, so it is difficult to appear the problem of sucking dust.

[0067] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A box-type air filter, characterized by: The utility model provides a filter box, including box (1), the inside rotatory connection of box (1) has rotary frame (3), the inside sliding connection of rotary frame (3) has filter plate (4), the inside rotation and sliding connection of rotary frame (3) has the rotary bar (6), the inside of rotary bar (6) is provided with the sliding slot (64), the inside of box (1) is provided with a plurality of air filter element (5), the inner wall of rotary frame (3) is provided with the locating hole (31), one side of filter plate (4) is fixedly connected with the plug rod (41), the upper surface of box (1) is provided with drive assembly, is used for driving rotary bar (6) rotation and sliding in the inside rotary frame (3) through drive assembly, The surface of the rotary bar (6) is fixedly connected with a plurality of tooth columns (61), the inside of the rotary frame (3) is slidably connected with a tooth groove (32), the tooth column (61) and the tooth groove (32) are engaged with each other; The drive assembly includes a cover plate (2) fixedly connected to the upper surface of the box (1), a rack (24) slidably connected inside the cover plate (2), and a gear (25) rotatably connected inside the cover plate (2). The rack (24) and the gear (25) are engaged with each other, and the inside of the gear (25) and the surface of the rotary bar (6) are slidably and rotatably connected. The gear (25) includes a first limiting section (251), a meshing section (252) provided on one side of the first limiting section (251), and a second limiting section (253) provided on one side of the meshing section (252). In the initial state, one end of the first limiting section (251) is in contact with one side of the rack (24). A lead screw (22) is rotatably connected inside the cover plate (2), a moving block (23) is threadedly connected to the surface of the lead screw (22), the moving block (23) is slidably connected to the inner lower surface of the cover plate (2), one end of the moving block (23) is fixedly connected to one end of the rack (24), a motor (21) is fixedly connected inside the cover plate (2), and the output end of the motor (21) is fixedly connected to one end of the lead screw (22). One end of the rotary bar (6) is fixedly connected with a top rod (63), both ends of the top rod (63) are provided with balls, the upper surface of the rack (24) includes a first plane (241), one side of the first plane (241) is provided with a second plane (242), one side of the second plane (242) is provided with a third plane (243), and the heights of the first plane (241), the second plane (242), and the third plane (243) increase in order. A baffle (62) is fixedly connected to the surface of the rotary bar (6), a push plate (26) is rotatably connected between the baffles (62), the push plate (26) is slidably connected to the inner wall of the cover plate (2), and a spring (261) is fixedly connected between the push plate (26) and the cover plate (2).

2. A box-type air filter according to claim 1, characterized in that: A sealing plate (65) is fixedly connected to the surface of the rotary bar (6), the sealing plate (65) is in contact with the inner wall of the rotary bar (6), and the thickness of the sealing plate (65) matches the size of the locating hole (31).

3. A box-type air filter according to claim 2, characterized in that: The inner upper surface of the cover plate (2) is fixedly connected with a limiting plate (27), and one end of the ejector rod (63) and the lower surface of the limiting plate (27) are mutually attached.

4. A box-type air filter according to claim 3, characterized in that: The upper surface of the moving block (23) is fixedly connected with a pointer (231), and the outer surface of the cover plate (2) is provided with a plurality of scale lines (28).

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