Ventilation and dust removal device for anti-theft door

Abstract

The present invention discloses a ventilation and dust removal device for an anti-theft door, which relates to the technical field of anti-theft doors, including a door body and a filter plate, a mounting portion is symmetrically fixed on one side of the door body, a handle is symmetrically installed on the outer lower part of the door body, and also includes: a ventilation mechanism, which is arranged on the upper inner part of the door body, and the mounting mechanism is arranged in the middle of the inner part of the door body; the ventilation mechanism includes a ventilation slot and a mounting slot, a stepper motor is fixedly installed inside the mounting slot, an axial flow fan is fixedly connected to the output end of the stepper motor, a side slot is opened on one side of the ventilation slot, a screw rod is rotatably connected inside the side slot, and an adjustment sleeve is sleeved on the outer side of the screw rod; the mounting mechanism includes a lower slot, and a mounting spring is installed at the bottom of the lower slot, which solves the problem that dust and particulate debris in the air are easily attached to the strip grille as the use time increases, and these dust and debris affect the ventilation effect and also bring inconvenience to the subsequent cleaning operation.

Description

Technical Field

[0001] The invention relates to the technical field of anti-theft doors, and in particular to a ventilation and dust removal device for anti-theft doors. Background Art

[0002] An anti-theft door generally refers to a door that is equipped with an anti-theft lock, can resist abnormal opening under certain conditions within a certain period of time, has certain safety protection performance and meets the corresponding anti-theft security level.

[0003] For example, a ventilation device for an anti-theft door with announcement number CN209510096U comprises a main door, a square groove is arranged in the main door, symmetrically distributed strip iron grilles are arranged in the square groove, partitions are arranged between the strip iron grilles, first slide grooves are arranged at both ends of the strip iron grilles, the strip iron grilles slide up and down in the first slide grooves, a window screen is arranged in the square groove, second slide grooves are symmetrically distributed on both sides of the window screen, the window screen slides up and down in the second slide grooves, a lock hole is arranged on one side of the square groove, and symmetrically distributed fixing holes are arranged on the other side, a secondary door is arranged in the square groove, and a The second lock cooperates with the lock hole, and a fixed shaft is provided at one end of the auxiliary door, and the fixed shaft is rotatably connected to the fixed hole. By opening the auxiliary door, a larger vent is provided to increase the circulation of indoor air, which can greatly improve the indoor ventilation conditions. However, when the auxiliary door is opened, the strip grille is directly connected to the outside. During the air circulation process, as the use time increases, dust and particulate debris in the air are easily attached to the strip grille. These dust and debris affect the ventilation effect and also bring inconvenience to subsequent cleaning operations, which makes it have certain limitations in actual use.

[0004] Therefore, we propose a ventilation and dust removal device for anti-theft doors to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a ventilation and dust removal device for anti-theft doors to solve the problem that dust and particulate debris in the air are easily attached to the bar grille as the use time increases, and these dust and debris affect the ventilation effect and also bring inconvenience to subsequent cleaning operations.

[0006] To achieve the above object, the present invention provides the following technical solution: a ventilation and dust removal device for an anti-theft door, comprising a door body and a filter plate, a mounting portion being symmetrically fixed on one side of the door body, and a handle being symmetrically installed on the lower outer side of the door body;

[0007] Also includes:

[0008] A ventilation mechanism is arranged above the interior of the door body, and a mounting mechanism is arranged in the middle of the interior of the door body;

[0009] The ventilation mechanism comprises a ventilation slot and a mounting slot, wherein the ventilation slot is arranged above the interior of the door body, the mounting slot is arranged on one side of the ventilation slot, a stepper motor is fixedly mounted inside the mounting slot, an axial flow fan is fixedly connected to the output end of the stepper motor, a side slot is arranged on one side of the ventilation slot, a lead screw is rotatably connected inside the side slot, the lead screw is fixedly connected to the axial flow fan, an adjustment sleeve is sleeved on the outer side of the lead screw, and a fixing plate is fixedly connected to one side of the adjustment sleeve;

[0010] The inner bottom surface of the axial flow fan is connected with a telescopic hose, the bottom end of the telescopic hose is connected with a fixed plate, fixed rods are symmetrically fixed on both sides of the interior of the ventilation slot, the fixed plate is slidably connected with the fixed rod, the outer side of the fixed rod is slidably connected with a movable plate, the movable plate is located at the bottom of the fixed plate, and the outer side of the fixed rod is sleeved with an auxiliary spring;

[0011] Protective plates are symmetrically fixed on both sides of the movable plate, a connecting strip is fixedly connected to the middle of one side of the filter plate close to the protective plate, a fixing strip is fixedly connected to the side of the fixed plate away from the adjustment sleeve, a scraping plate is fixedly connected to the bottom of the fixing strip, the scraping plate is in contact with the surface of the filter plate, an air hole is opened on the inner side of the fixing strip, and the fixing plate and the fixing strip are hollow structures to achieve the function of blowing dust removal;

[0012] A gear is rotatably connected to the inner side of the fixed bar, racks are fixedly connected to both sides of the connecting bar, a scraping rod is fixedly connected to the side of the gear away from the fixed bar, a return spring is fixedly connected to the bottom side of the scraping rod, and the bottom end of the return spring is fixedly connected to the scraping plate;

[0013] The mounting mechanism includes a lower groove, which is opened inside the door body, the top of the lower groove is connected to the bottom of the ventilation groove, the bottom of the lower groove is installed with a mounting spring, the top of the mounting spring is connected to a top plate, and the bottom of the filter plate is abutted against the top plate.

[0014] Preferably, the ventilation slot passes through the door body, the side slot is connected to the ventilation slot, and the top end of the screw rod passes through the side slot and is fixedly connected to the bottom of the axial flow fan.

[0015] By adopting the above technical solution and starting the stepper motor, the surface of the filter plate can be cleaned when the protective plate is moved down and opened. The scraping of the scraper plate and the blowing dust removal of the air holes on the inner side of the fixed strip can improve the cleaning and dust removal effect of the filter plate.

[0016] Preferably, the adjustment sleeve is threadedly connected to the screw rod, the longitudinal cross-sectional dimension of the protective plate is larger than the longitudinal cross-sectional dimension of the ventilation slot, and the protective plate fits the door body.

[0017] By adopting the above technical solution, the ventilation slot can be completely sealed when the protective plate is closed.

[0018] Preferably, the auxiliary spring is slidably connected to the fixed rod, the top end of the auxiliary spring is fixedly connected to the bottom of the movable plate, and the bottom end of the auxiliary spring is fixedly connected to the inner bottom surface of the ventilation slot.

[0019] By adopting the above technical solution, the stepper motor drives the adjusting sleeve to descend, the adjusting sleeve drives the fixed plate to descend, the fixed plate descends to squeeze the movable plate to descend, the movable plate drives the protective plate to descend, so that the filter plate is ventilated to the outside, the movable plate compresses the auxiliary spring, and the auxiliary spring is used to assist in resetting the protective plate.

[0020] Preferably, an upper magnetic block is fixedly connected to the bottom of the protective plate, the upper magnetic blocks are symmetrically arranged, there are no less than two upper magnetic blocks, and a lower magnetic block is symmetrically fixed to the lower outer part of the door body, and the upper magnetic block is magnetically connected to the lower magnetic block.

[0021] By adopting the above technical solution, the upper magnetic block at the bottom of the protective plate contacts the lower magnetic block, and the lower magnetic block assists in fixing the upper magnetic block and the protective plate.

[0022] Preferably, the fixing strip is U-shaped, the fixing plates are symmetrically arranged, the fixing plates away from the adjustment sleeve are fixedly connected to the fixing strip, and the fixing strips are symmetrically arranged on both sides of the filter plate.

[0023] By adopting the above technical solution, the air blown by the axial flow fan is transported to the fixing bar through the telescopic hose and the fixing plate, and the filter plate is blown through the air holes on the inner side of the fixing bar to remove dust.

[0024] Preferably, the inner bottom surface of the lower groove is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to the bottom of the mounting spring, and the mounting spring is fixedly connected to the top plate.

[0025] By adopting the above technical solution, the elastic force of the installed spring drives the top plate to lift the filter plate, so that the filter plate is pressed against the inner top surface of the ventilation groove. The elastic force coefficient of the installed spring is large, so that the filter plate will not move when the surface of the filter plate is cleaned.

[0026] Preferably, the mounting springs are symmetrically arranged, there are no less than four mounting springs, and the cross-sectional dimension of the lower groove is larger than the cross-sectional dimension of the filter plate.

[0027] By adopting the above technical solution, the stepper motor is started to move the protective plate downward and open, and then the filter plate is pressed downward. The filter plate squeezes the top plate and the mounting spring, so that the top of the filter plate is separated from the inner top surface of the ventilation groove. Since the size of the lower groove is larger than the filter plate, the filter plate can be removed for cleaning by tilting and pulling the filter plate.

[0028] Preferably, a top block is fixedly connected to an upper portion of one side of the door body, a fixing bolt is installed inside the top block, the top blocks are symmetrically arranged, and the fixing bolt is threadedly connected to the protective plate on one side.

[0029] By adopting the above technical solution, the inner protective plate and the top block can be easily fixed by tightening the fixing bolts, thereby improving the anti-theft effect.

[0030] Compared with the prior art, the invention has the following beneficial effects: a ventilation mechanism is provided, and when ventilation is required, the stepping motor is started, so that when the protective plate is moved down and opened, the surface of the filter plate is cleaned, and the scraping of the scraping plate and the blowing dust removal of the air holes on the inner side of the fixing strip are combined, so that the cleaning and dust removal effect of the filter plate is improved;

[0031] 1. A ventilation mechanism is provided. Under normal conditions, the protective plate blocks the ventilation slot, and the ventilation slot is not connected to the outside world. When ventilation is needed, start the stepper motor, and the stepper motor drives the axial flow fan and the screw to rotate. The air blown by the axial flow fan is transported to the fixed bar through the telescopic hose and the fixed plate, and the filter plate is blown through the air holes on the inner side of the fixed bar to remove dust. The fixed rod limits the fixed plate and the adjusting sleeve, so that the adjusting sleeve descends, and the adjusting sleeve drives the fixed plate and the fixed bar to descend. The fixed bar drives the scraper plate at the bottom to move, and the fixed bar drives the fixed plate on the other side to move on the fixed rod, so that the scraper plates on both sides scrape the surface of the filter plate. The movement of the fixed bar drives the gear to move at the same time. When the gear contacts the rack, the gear drives the scraper rod to rotate, and the scraper rod compresses the reset spring. When the gear is disengaged from the rack, the reset spring is reset. The positioning spring drives the scraper rod to rotate and reset, and multiple racks arranged at intervals are convenient for the scraper rod to scrape and disturb the filter plate reciprocally. The fixed plate descends to squeeze the movable plate to descend, and the movable plate drives the protective plate to descend, so that the filter plate is ventilated with the outside world. The movable plate compresses the auxiliary spring until the upper magnetic block at the bottom of the protective plate contacts the lower magnetic block, and the lower magnetic block assists in fixing the upper magnetic block and the protective plate. At this time, the operation of the stepper motor is stopped, so that when the protective plate moves down and opens, the surface of the filter plate can be cleaned. The scraping of the scraper plate and the blowing dust removal of the air holes on the inner side of the fixed strip are combined to improve the cleaning and dust removal effect of the filter plate, and solve the problem that dust and particulate debris in the air are easily attached to the bar grille as the use time increases. These dust and debris affect the ventilation effect and also bring inconvenience to the subsequent cleaning operation.

[0032] 2. A mounting mechanism, a top block and fixing bolts are provided. When in use, the elastic force of the mounting spring drives the top plate to lift the filter plate so that the filter plate is pressed against the inner top surface of the ventilation slot. The elastic force coefficient of the mounting spring is very large, so that the filter plate will not move when the surface of the filter plate is cleaned. When the filter plate needs to be replaced and cleaned, the stepper motor is started to move the protective plate down and open, and then the filter plate is pressed down. The filter plate squeezes the top plate and the mounting spring, so that the top of the filter plate is separated from the inner top surface of the ventilation slot. Since the size of the lower slot is larger than the filter plate, the filter plate can be removed for cleaning by tilting and pulling the filter plate. When not in use, the inner protective plate and the top block can be fixed by tightening the fixing bolts, thereby improving the anti-theft effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the first three-dimensional overall structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the protective plate of the present invention moving downward;

[0036] Figure 4 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0037] Figure 5 For the present invention Figure 1 The enlarged structural diagram at B in the middle;

[0038] Figure 6 This is a schematic diagram of the filter plate installation structure of the present invention;

[0039] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0040] Figure 8 This is a schematic diagram of the installation structure of the scraping rod of the present invention;

[0041] Fig. 9 This is a schematic diagram of removing the filter plate of the present invention;

[0042] Fig.10 It is a schematic diagram of the second three-dimensional overall structure of the present invention.

[0043] In the figure: 1. door body; 2. mounting part; 3. ventilation mechanism; 31. ventilation slot; 32. mounting slot; 33. stepping motor; 34. axial flow fan; 35. side slot; 36. screw rod; 37. adjustment sleeve; 38. fixing plate; 39. telescopic hose; 310. fixing rod; 311. moving plate; 312. protective plate; 313. auxiliary spring; 314. upper magnetic block; 315. lower magnetic block; 316. connecting strip; 317. fixing strip; 318. scraping plate; 319. gear; 320. rack; 321. scraping rod; 322. reset spring; 4. mounting mechanism; 41. lower slot; 42. bottom plate; 43. mounting spring; 44. top plate; 5. handle; 6. filter plate; 7. top block; 8. fixing bolt. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-Figure 10 The present invention provides a technical solution: a ventilation and dust removal device for an anti-theft door, comprising a door body 1 and a filter plate 6, a mounting portion 2 is symmetrically fixed to one side of the door body 1, and a handle 5 is symmetrically installed at the lower outer side of the door body 1;

[0046] A ventilation mechanism 3 is arranged on the upper part of the inner part of the door body 1;

[0047] The ventilation mechanism 3 includes a ventilation slot 31 and a mounting slot 32. The ventilation slot 31 is opened on the upper inner part of the door body 1, and the mounting slot 32 is located on one side of the ventilation slot 31. A stepper motor 33 is fixedly installed inside the mounting slot 32, and an axial flow fan 34 is fixedly connected to the output end of the stepper motor 33. A side slot 35 is opened on one side of the ventilation slot 31, and a screw rod 36 is rotatably connected inside the side slot 35. The screw rod 36 is fixedly connected to the axial flow fan 34, and an adjustment sleeve 37 is sleeved on the outer side of the screw rod 36, and a fixing plate 38 is fixedly connected to one side of the adjustment sleeve 37.

[0048] The ventilation slot 31 passes through the door body 1 , the side slot 35 is connected to the ventilation slot 31 , and the top end of the screw rod 36 passes through the side slot 35 and is fixedly connected to the bottom of the axial flow fan 34 .

[0049] The inner bottom surface of the axial flow fan 34 is connected to a telescopic hose 39, the bottom end of the telescopic hose 39 is connected to the fixed plate 38, fixed rods 310 are symmetrically fixed on both sides of the inside of the ventilation slot 31, the fixed plate 38 is slidably connected to the fixed rod 310, and the outer side of the fixed rod 310 is slidably connected to a movable plate 311, the movable plate 311 is located at the bottom of the fixed plate 38, and the outer side of the fixed rod 310 is sleeved with an auxiliary spring 313.

[0050] Protective plates 312 are symmetrically fixed on both sides of the movable plate 311, a connecting strip 316 is fixedly connected to the middle part of one side of the filter plate 6 close to the protective plate 312, a fixing strip 317 is fixedly connected to the side of the fixing plate 38 away from the adjusting sleeve 37, a scraping plate 318 is fixedly connected to the bottom of the fixing strip 317, the scraping plate 318 is fitted to the surface of the filter plate 6, and air holes are opened on the inner side of the fixing strip 317, and the fixing plate 38 and the fixing strip 317 are hollow structures to achieve the effect of blowing dust removal.

[0051] The adjusting sleeve 37 is threadedly connected to the screw rod 36, the longitudinal cross-sectional dimension of the protective plate 312 is larger than the longitudinal cross-sectional dimension of the ventilation slot 31, the protective plate 312 fits against the door body 1, the auxiliary spring 313 is slidingly connected to the fixed rod 310, the top end of the auxiliary spring 313 is fixedly connected to the bottom of the movable plate 311, and the bottom end of the auxiliary spring 313 is fixedly connected to the inner bottom surface of the ventilation slot 31.

[0052] An upper magnetic block 314 is fixedly connected to the bottom of the protective plate 312. The upper magnetic blocks 314 are symmetrically arranged, and there are no less than two upper magnetic blocks 314. A lower magnetic block 315 is symmetrically fixed to the lower outer part of the door body 1. The upper magnetic block 314 and the lower magnetic block 315 are magnetically connected.

[0053] The inner side of the fixed bar 317 is rotatably connected to a gear 319, both sides of the connecting bar 316 are fixedly connected to racks 320, the side of the gear 319 away from the fixed bar 317 is fixedly connected to a scraper rod 321, the bottom side of the scraper rod 321 is fixedly connected to a return spring 322, and the bottom end of the return spring 322 is fixedly connected to the scraper plate 318.

[0054] The fixing strip 317 is U-shaped, the fixing plates 38 are symmetrically arranged, the fixing plates 38 away from the adjustment sleeve 37 are fixedly connected to the fixing strip 317 , and the fixing strips 317 are symmetrically arranged on both sides of the filter plate 6 .

[0055] Embodiment 1: Figure 1-Figure 4 and Figure 6-Figure 8As shown, a ventilation mechanism 3 is provided. In a normal state, the protective plate 312 blocks the ventilation slot 31, and the ventilation slot 31 is not connected to the outside. When ventilation is needed, the stepper motor 33 is started, and the stepper motor 33 drives the axial flow fan 34 and the screw rod 36 to rotate. The air blown by the axial flow fan 34 is transported to the fixed bar 317 through the telescopic hose 39 and the fixed plate 38, and the filter plate 6 is blown through the air holes on the inner side of the fixed bar 317 to remove dust.

[0056] The fixing rod 310 limits the fixing plate 38 and the adjusting sleeve 37, so that the adjusting sleeve 37 descends, and the adjusting sleeve 37 drives the fixing plate 38 and the fixing bar 317 to descend, and the fixing bar 317 drives the scraping plate 318 at the bottom to move, and the fixing bar 317 drives the fixing plate 38 on the other side to move on the fixing rod 310, so that the scraping plates 318 on both sides scrape the surface of the filter plate 6, and the movement of the fixing bar 317 drives the gear 319 to move at the same time. When the gear 319 contacts the rack 320, the gear 319 drives the scraping rod 321 to rotate, and the scraping rod 321 compresses the reset spring 322. When the gear 319 disengages from the rack 320, the reset spring 322 drives the scraping rod 321 to rotate and reset. A plurality of racks 320 arranged at intervals facilitate the scraping and disturbance of the filter plate 6 by the scraping rod 321.

[0057] The fixed plate 38 descends to squeeze the movable plate 311 downward, and the movable plate 311 drives the protective plate 312 to descend, so that the filter plate 6 is ventilated to the outside. The movable plate 311 compresses the auxiliary spring 313 until the upper magnetic block 314 at the bottom of the protective plate 312 contacts the lower magnetic block 315, and the lower magnetic block 315 assists in fixing the upper magnetic block 314 and the protective plate 312.

[0058] At this time, the operation of the stepper motor 33 is stopped to facilitate cleaning of the surface of the filter plate 6 when the protective plate 312 moves down and opens. The scraping of the scraper plate 318 and the blowing of dust removal through the air holes on the inner side of the fixed strip 317 improve the cleaning and dust removal effect of the filter plate 6, and solve the problem that dust and particulate debris in the air are easily attached to the strip grille as the use time increases. These dust and debris affect the ventilation effect and also bring inconvenience to subsequent cleaning operations.

[0059] An installation mechanism 4 is provided in the middle of the door body 1, and the installation mechanism 4 includes a lower groove 41. The lower groove 41 is opened inside the door body 1, and the top of the lower groove 41 is connected to the bottom of the ventilation groove 31. A mounting spring 43 is installed at the bottom of the lower groove 41, and the top of the mounting spring 43 is connected to the top plate 44. The bottom of the filter plate 6 is abutted against the top plate 44.

[0060] A bottom plate 42 is fixedly connected to the inner bottom surface of the lower groove 41 , a top of the bottom plate 42 is fixedly connected to the bottom of the mounting spring 43 , and the mounting spring 43 is fixedly connected to the top plate 44 .

[0061] The mounting springs 43 are symmetrically arranged, and there are no less than four mounting springs 43 . The cross-sectional dimension of the lower groove 41 is larger than the cross-sectional dimension of the filter plate 6 .

[0062] A top block 7 is fixedly connected to an upper portion of one side of the door body 1 , and a fixing bolt 8 is installed inside the top block 7 . The top block 7 is symmetrically arranged, and the fixing bolt 8 is threadedly connected to a protective plate 312 on one side.

[0063] Embodiment 2: Figure 5 and Figure 9-10 As shown, a mounting mechanism 4, a top block 7 and a fixing bolt 8 are provided. When in use, the elastic force of the mounting spring 43 drives the top plate 44 to lift the filter plate 6, so that the filter plate 6 is pressed against the inner top surface of the ventilation groove 31. The elastic force coefficient of the mounting spring 43 is very large, so that the filter plate 6 will not move when the surface of the filter plate 6 is cleaned.

[0064] When the filter plate 6 needs to be replaced and cleaned, the stepper motor 33 is started to move the protective plate 312 downward and open, and then the filter plate 6 is pressed downward. The filter plate 6 squeezes the top plate 44 and the mounting spring 43, so that the top of the filter plate 6 is separated from the inner top surface of the ventilation groove 31. Since the size of the lower groove 41 is larger than the filter plate 6, the filter plate 6 can be removed and cleaned by tilting and pulling the filter plate 6.

[0065] When not in use, the inner protective plate 312 and the top block 7 can be fixed by tightening the fixing bolts 8, thereby improving the anti-theft effect.

[0066] Working principle: When using the device, first, Figure 1-Figure 10 As shown, the stepper motor 33 is started, and the stepper motor 33 drives the axial flow fan 34 and the screw rod 36 to rotate. The air blown by the axial flow fan 34 is transported to the fixed bar 317 through the telescopic hose 39 and the fixed plate 38, and the filter plate 6 is blown to remove dust through the air holes on the inner side of the fixed bar 317. The fixed rod 310 limits the fixed plate 38 and the adjustment sleeve 37, so that the adjustment sleeve 37 descends, and the adjustment sleeve 37 drives the fixed plate 38 and the fixed bar 317 to descend. The fixed bar 317 drives the scraper plate 318 at the bottom to move, and the fixed bar 317 drives the fixed plate 38 on the other side to move on the fixed rod 310, so that the scraper plates 318 on both sides scrape the surface of the filter plate 6.

[0067] The movement of the fixed bar 317 drives the gear 319 to move at the same time. When the gear 319 contacts the rack 320, the gear 319 drives the scraper rod 321 to rotate. The scraper rod 321 compresses the reset spring 322. When the gear 319 is disengaged from the rack 320, the reset spring 322 drives the scraper rod 321 to rotate and reset. The multiple racks 320 arranged at intervals facilitate the scraper rod 321 to scrape and disturb the filter plate 6 back and forth. The fixed plate 38 descends to squeeze the movable plate 311 to descend. The movable plate 311 drives the protective plate 312 to descend, so that the filter plate 6 is ventilated to the outside.

[0068] The movable plate 311 compresses the auxiliary spring 313 until the upper magnetic block 314 at the bottom of the protective plate 312 contacts the lower magnetic block 315, and the lower magnetic block 315 assists in fixing the upper magnetic block 314 and the protective plate 312. At this time, the operation of the stepper motor 33 is stopped to facilitate cleaning the surface of the filter plate 6 when the protective plate 312 moves down and opens.

[0069] When in use, the elastic force of the mounting spring 43 drives the top plate 44 to lift the filter plate 6, so that the filter plate 6 is pressed against the inner top surface of the ventilation groove 31. The elastic force coefficient of the mounting spring 43 is very large, so that when the surface of the filter plate 6 is cleaned, the filter plate 6 will not move. When the filter plate 6 needs to be replaced and cleaned, the stepper motor 33 is started to move the protective plate 312 downward and open, and then the filter plate 6 is pressed downward. The filter plate 6 squeezes the top plate 44 and the mounting spring 43, so that the top of the filter plate 6 is separated from the inner top surface of the ventilation groove 31. Since the size of the lower groove 41 is larger than the filter plate 6, the filter plate 6 can be removed and cleaned by tilting and pulling the filter plate 6.

[0070] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0071] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation and dust removal device for an anti-theft door, comprising a door body (1) and a filter plate (6), a mounting portion (2) being symmetrically fixed to one side of the door body (1), and a handle (5) being symmetrically mounted to the lower outer side of the door body (1); It is characterized in that Also includes: A ventilation mechanism (3) is arranged above the interior of the door body (1), and a mounting mechanism (4) is arranged in the middle of the interior of the door body (1); The ventilation mechanism (3) comprises a ventilation slot (31) and a mounting slot (32); the ventilation slot (31) is provided at the upper part of the door body (1); the mounting slot (32) is located on one side of the ventilation slot (31); a stepper motor (33) is fixedly installed inside the mounting slot (32); an output end of the stepper motor (33) is fixedly connected to an axial flow fan (34); a side slot (35) is provided on one side of the ventilation slot (31); a screw rod (36) is rotatably connected inside the side slot (35); the screw rod (36) is fixedly connected to the axial flow fan (34); an adjusting sleeve (37) is sleeved on the outer side of the screw rod (36); and a fixing plate (38) is fixedly connected to one side of the adjusting sleeve (37); The inner bottom surface of the axial flow fan (34) is connected to a telescopic hose (39), the bottom end of the telescopic hose (39) is in communication with a fixed plate (38), fixed rods (310) are symmetrically fixed on both sides of the interior of the ventilation slot (31), the fixed plate (38) is slidably connected to the fixed rods (310), the outer side of the fixed rod (310) is slidably connected to a movable plate (311), the movable plate (311) is located at the bottom of the fixed plate (38), and the outer side of the fixed rod (310) is sleeved with an auxiliary spring (313); Protective plates (312) are symmetrically fixed on both sides of the movable plate (311); a connecting strip (316) is fixedly connected to the middle of a side of the filter plate (6) close to the protective plate (312); a fixing strip (317) is fixedly connected to a side of the fixed plate (38) away from the adjustment sleeve (37); a scraping plate (318) is fixedly connected to the bottom of the fixing strip (317); the scraping plate (318) is in contact with the surface of the filter plate (6); an air hole is provided on the inner side of the fixing strip (317); the fixing plate (38) and the fixing strip (317) are hollow structures so as to achieve the function of blowing dust removal; A gear (319) is rotatably connected to the inner side of the fixed bar (317), racks (320) are fixedly connected to both sides of the connecting bar (316), a scraping rod (321) is fixedly connected to the side of the gear (319) away from the fixed bar (317), a return spring (322) is fixedly connected to the bottom side of the scraping rod (321), and the bottom end of the return spring (322) is fixedly connected to the scraping plate (318); The mounting mechanism (4) comprises a lower groove (41), the lower groove (41) being opened inside the door body (1), the top of the lower groove (41) being connected to the bottom of the ventilation groove (31), the bottom of the lower groove (41) being provided with a mounting spring (43), the top of the mounting spring (43) being connected to a top plate (44), and the bottom of the filter plate (6) being in contact with the top plate (44).

2. The ventilation and dust removal device for the anti-theft door according to claim 1, characterized in that: The ventilation slot (31) passes through the door body (1), the side slot (35) is connected to the ventilation slot (31), and the top end of the screw rod (36) passes through the side slot (35) and is fixedly connected to the bottom of the axial flow fan (34).

3. The ventilation and dust removal device for the anti-theft door according to claim 1, characterized in that: The adjusting sleeve (37) is threadedly connected to the screw rod (36); the longitudinal cross-sectional dimension of the protective plate (312) is larger than the longitudinal cross-sectional dimension of the ventilation slot (31); and the protective plate (312) fits the door body (1).

4. The ventilation and dust removal device for the anti-theft door according to claim 1, characterized in that: The auxiliary spring (313) is slidably connected to the fixed rod (310), the top end of the auxiliary spring (313) is fixedly connected to the bottom of the movable plate (311), and the bottom end of the auxiliary spring (313) is fixedly connected to the inner bottom surface of the ventilation slot (31).

5. The ventilation and dust removal device for the anti-theft door according to claim 1, characterized in that: An upper magnetic block (314) is fixedly connected to the bottom of the protective plate (312), the upper magnetic blocks (314) are symmetrically arranged, and there are no less than two upper magnetic blocks (314). A lower magnetic block (315) is symmetrically fixed to the lower outer portion of the door body (1), and the upper magnetic block (314) is magnetically connected to the lower magnetic block (315).

6. The ventilation and dust removal device for the anti-theft door according to claim 1, characterized in that: The fixing strip (317) is arranged in a U shape, and the fixing plates (38) are arranged symmetrically; the fixing plates (38) away from the adjustment sleeve (37) are fixedly connected to the fixing strip (317); and the fixing strips (317) are symmetrically arranged on both sides of the filter plate (6).

7. The ventilation and dust removal device for the anti-theft door according to claim 1, characterized in that: The inner bottom surface of the lower groove (41) is fixedly connected to a bottom plate (42), the top of the bottom plate (42) is fixedly connected to the bottom of a mounting spring (43), and the mounting spring (43) is fixedly connected to a top plate (44).

8. The ventilation and dust removal device for the anti-theft door according to claim 7, characterized in that: The mounting springs (43) are symmetrically arranged, there are no less than four mounting springs (43), and the cross-sectional dimension of the lower groove (41) is greater than the cross-sectional dimension of the filter plate (6).

9. The ventilation and dust removal device for the anti-theft door according to claim 1, characterized in that: A top block (7) is fixedly connected to an upper portion of one side of the door body (1), a fixing bolt (8) is installed inside the top block (7), the top block (7) is symmetrically arranged, and the fixing bolt (8) is threadedly connected to the protective plate (312) on one side.

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