Civil air defense filtering device with protection and damping functions

Abstract

The invention discloses a civil air defense filtering device with protection and damping functions, and belongs to the field of civil air defense filtering, the civil air defense filtering device comprises a filtering mechanism, a locking mechanism is arranged below the filtering mechanism, a top plate is arranged above the filtering mechanism, and a rotating frame is rotatably connected to the interior of the top plate; the filtering mechanism comprises a protection box, air inlets are formed in the left side and the right side of the protection box in a penetrating mode, a penetrating type air outlet is formed in the lower portion of the interior of the protection box, a cylinder base is rotationally connected to the lower portion of the interior of the protection box, a filtering cylinder is jointly arranged between the cylinder base and the rotating frame, and a transverse frame is fixed to the interior of the air outlet. The wind wheel rotates to drive the filter cartridge to rotate, so that the positions of two sides of the filter cartridge directly facing the air inlet are continuously changed; meanwhile, gear transmission enables the winding drum to rotate, the contact surface of the filter cloth and the filter drum continuously changes, the clean part of the filter cloth always participates in filtering, the filtering effect is prevented from being influenced by excessive impurities on the surface of the filter cloth, and the filtering process is stable and continuous.

Description

Technical Field

[0001] The present invention relates to the technical field of civil air defense filtering, and in particular to a civil air defense filtering device with protective shock absorbing functions. Background Art

[0002] In civil air defense projects, air filtration devices play a key role in ensuring internal air quality and protecting the lives of personnel. However, the current civil air defense filtration devices on the market have many shortcomings and need to be improved urgently.

[0003] Filtration sustainability issues: Most existing civil air defense filtration devices use a fixed filtration structure. After long-term use, a large amount of impurities will accumulate on the surface of the filter material, causing a sharp decline in the filtration effect. For example, the common single-layer filter device, as the use time increases, the filter is clogged with impurities, the ventilation volume decreases, and the filtration efficiency is greatly reduced, and the stability and sustainability of the filtration process cannot be guaranteed.

[0004] Limited filtration accuracy: Most existing devices have a single filtration level, which makes it difficult to simultaneously intercept large particles and absorb harmful gases. Some devices can only simply filter larger particles, and their ability to remove fine dust and toxic and harmful gases is insufficient, which cannot meet the strict requirements of civil air defense space for air quality.

[0005] High maintenance cost: Due to unreasonable filtering structure, filter materials are easily clogged, resulting in frequent replacement of key components such as filter cartridges. This not only increases maintenance costs, but also frequently replaces filter materials, which affects the normal use of civil air defense space and increases the complexity and labor costs of maintenance work.

[0006] Inconvenient cleaning: Existing devices lack an effective cleaning mechanism, impurities on the filter material are difficult to clean, the cleaning process is cumbersome and the effect is poor. Some devices require the entire filter device to be disassembled for cleaning, which consumes a lot of time and energy, and the cleaning is not thorough, affecting the reuse of the filter material.

[0007] Based on the above problems, the present application designs a human air defense filtering device with protective shock absorption function. The wind wheel drives the filter cartridge to rotate, and the gear transmission makes the contact surface between the filter cloth and the filter cartridge constantly change, ensuring that the filter cloth always maintains good filtering performance and maintains the stability and continuity of filtering. The two-stage filtering structure combining preliminary filtration by filter cloth and fine filtration by filter cartridge greatly improves the filtering accuracy. The filter cloth shares the load of the filter cartridge, prolongs the service life of the filter cartridge, and reduces maintenance costs. At the same time, a cleaning barrel and comb teeth are provided to facilitate the cleaning of the filter cloth, increase its service life, and realize the reuse of the filter cloth. In addition, the locking mechanism design makes it convenient for personnel to replace filter cartridges, filter cloths and other components, and when the filtering mechanism descends, it can automatically clean up the debris in the ash trough. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a human air defense filtering device with protective shock-absorbing functions, which solves the problems raised in the above-mentioned background technology.

[0009] Technical solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, a human air defense filtering device with protective shock absorption function comprises a filtering mechanism, a locking mechanism is provided below the filtering mechanism, a top plate is provided above the filtering mechanism, and a rotating frame is rotatably connected inside the top plate; The filter mechanism includes a protective box, the left and right sides of the protective box are penetrated with air inlets, the lower part of the protective box is provided with a through-type air outlet, the lower part of the protective box is rotatably connected with a cartridge seat, a filter cartridge is arranged between the cartridge seat and the rotating frame, a cross frame is fixed inside the air outlet, the upper surface of the cross frame is rotatably connected with gear one and gear two from left to right in sequence, a wind wheel is fixed inside the gear one, the outer surface of the cartridge seat is meshed with four gear threes, the outer surfaces of the four gear threes are meshed with a rotating seat, the rotating seat and the gear three are rotatably connected with the lower surface of the inner part of the protective box, and the upper surface of the rotating seat A cylinder rod is fixed at the center of the surface, and a reel is sleeved on the outer surface of the cylinder rod. The four reels are divided into two groups, and the outer surfaces of the front and rear two reels in each group are rolled up with filter cloth. A vertical frame is provided between the two adjacent rotating seats, and the vertical frame is fixedly connected to the lower surface of the inner part of the protective box. A cleaning cylinder is rotatably connected inside the vertical frame, and the bottom end of the cleaning cylinder penetrates to the bottom of the vertical frame and is fixed with a gear four. The outer surface of the gear four is meshed with a gear five, and the gear five is fixedly connected to the adjacent rotating seat. An ash groove is opened inside the vertical frame, and a plurality of comb teeth are fixed on the left and right sides of the ash groove inside the vertical frame.

[0010] Furthermore, a slideway is provided inside the ash trough, and a scraper is slidably connected to the slideway and the inside of the ash trough. A vertical rod is fixed to one end of the scraper located outside the vertical frame, and the top of the vertical rod is fixedly connected to the lower surface of the top plate.

[0011] Furthermore, a plurality of gear teeth are fixed to the inner side wall of the cartridge seat, and the cartridge seat is meshedly connected with the second gear through the gear teeth.

[0012] Furthermore, the locking mechanism includes a lifting box, a plurality of shock-absorbing blocks are fixed on the upper surface of the lifting box, side grooves are provided on the top of the shock-absorbing blocks and the front and rear surfaces of the lifting box, two ratchets and two pawls are rotatably connected to the inner side walls of the side grooves, a gear six is ​​fixed on the surface of the ratchet wheel, a shift block is integrally formed on the outer surface of the pawl, a pressure rod is provided above the two shift blocks, a sliding rod is fixed on the lower surface of the pressure rod, and the bottom end of the sliding rod passes through the bottom of the lifting box.

[0013] Furthermore, the top plate, the filtering mechanism and the locking mechanism are jointly provided with four guide rods, a mounting plate is fixed on the top of the guide rods, a shock-absorbing spring is sleeved on the outer surface of the guide rods located between the top plate and the mounting plate, the shock-absorbing spring is respectively fixedly connected to the mounting plate and the top plate, and the upper surface of the shock-absorbing block is in contact with the lower surface of the protective box.

[0014] Furthermore, a plurality of tooth grooves are provided below the outer surface of the guide rod, and the guide rod is meshedly connected with the adjacent gear six through the tooth grooves.

[0015] Furthermore, the guide rod is slidably connected to the top plate, the protective box, and the lifting box respectively.

[0016] The beneficial effects of the human air defense filter device with protective shock absorption function of the present invention are: (1) During the use of the present invention, the rotation of the wind wheel drives the filter cartridge to rotate, so that the positions of the two sides of the filter cartridge facing the air inlet are constantly changing; at the same time, the gear transmission causes the drum to rotate, and the contact surface between the filter cloth and the filter cartridge is constantly changing, ensuring that the filter cloth always has a clean part participating in the filtration, avoiding the influence of excessive impurities on the surface of the filter cloth on the filtration effect, and making the filtration process stable and continuous; The two-stage filtration structure uses filter cloth for preliminary filtration and filter cartridge for fine filtration. The filter cloth intercepts large particles, fluff and other impurities to reduce the number of pollutants entering the filter cartridge. The filter cartridge uses activated carbon and other materials to absorb toxic and harmful gases, which improves the overall filtration accuracy and effect and ensures the air quality of the civil air defense space. The filter cloth shares the filter load of the filter cartridge, reduces the speed at which the filter cartridge is blocked, prolongs the service life of the filter cartridge, reduces the replacement frequency, and reduces maintenance costs; the cleaning cylinder rotates to brush the filter cloth after filtration, and the comb teeth comb the debris into the ash trough for storage, which increases the service life of the filter cloth and allows it to be reused; (2) The present invention releases the six limiters of the gear by pulling down the slide rod, and the filter mechanism can be moved down along the guide rod to expose the top opening, which is convenient for replacing the reel, filter cartridge and filter cloth; when the filter mechanism is lowered and separated from the top plate, the vertical rod drives the scraper to slide, and the debris inside the ash trough is lifted out for easy cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a right side cross-sectional structural schematic diagram of the present invention; Figure 3 It is a cross-sectional structural schematic diagram of the present invention; Figure 4 It is a structural schematic diagram of the filtering mechanism and the locking mechanism in the present invention; Figure 5 It is a schematic diagram of the internal structure of the filtering mechanism in the present invention; Figure 6 It is a schematic diagram of the structure of the filter cartridge and the reel in the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure viewed from above; Figure 8 It is a schematic diagram of the structure of the cartridge seat and the rotating seat in the present invention; Fig. 9 It is a structural schematic diagram of the vertical frame and the cleaning cylinder in the present invention; Fig.10 It is a cross-sectional structural schematic diagram of the vertical frame and the cleaning cylinder in the present invention; Fig.11 It is a structural schematic diagram of the locking mechanism in the present invention; Fig.12 It is a schematic diagram of the internal structure of the locking mechanism in the present invention.

[0019] In the figure: 1. filtration mechanism; 2. locking mechanism; 3. top plate; 4. guide rod; 5. mounting plate; 6. shock-absorbing spring; 7. protective box; 8. air inlet; 9. air outlet; 10. cylinder seat; 11. rotating frame; 12. filter cylinder; 13. horizontal frame; 14. gear one; 15. gear two; 16. wind wheel; 17. gear three; 18. rotating seat; 19. cylinder rod; 20. reel; 21. filter cloth; 22. vertical frame; 23. cleaning cylinder; 24. gear four; 25. gear five; 26. ash trough; 27. comb teeth; 28. slideway; 29. ​​scraper; 30. vertical rod; 31. lifting box; 32. shock-absorbing block; 33. side groove; 34. gear six; 35. ratchet; 36. pawl; 37. shift block; 38. pressure rod; 39. slide rod. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0021] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figure 1-12 A human air defense filtering device with a protective shock absorption function comprises a filtering mechanism 1, a locking mechanism 2 is provided below the filtering mechanism 1, a top plate 3 is provided above the filtering mechanism 1, and a rotating frame 11 is rotatably connected inside the top plate 3; The filter mechanism 1 includes a protective box 7, and an air inlet 8 is provided on both sides of the protective box 7. A through-type air outlet 9 is provided at the lower part of the protective box 7. A cartridge seat 10 is rotatably connected to the lower part of the protective box 7. A filter cartridge 12 is provided between the cartridge seat 10 and the rotating frame 11. A cross frame 13 is fixed inside the air outlet 9. A gear 14 and a gear 2 15 are rotatably connected to the upper surface of the cross frame 13 from left to right in sequence. A wind wheel 16 is fixed inside the gear 14. Four gears 3 17 are meshedly connected to the outer surface of the cartridge seat 10. The outer surfaces of the four gears 3 17 are meshedly connected to a rotating seat 18. The rotating seat 18 and the gear 3 17 are rotatably connected to the lower surface of the inner part of the protective box 7. The upper surface of the rotating seat 18 A cylinder rod 19 is fixed at the center, and a reel 20 is sleeved on the outer surface of the cylinder rod 19. The four reels 20 are divided into two groups. The outer surfaces of the two reels 20 in front and behind each group are rolled up with filter cloth 21. A vertical frame 22 is provided between two adjacent rotating seats 18. The vertical frame 22 is fixedly connected to the lower surface of the inner part of the protection box 7. A cleaning cylinder 23 is rotatably connected inside the vertical frame 22. The bottom end of the cleaning cylinder 23 penetrates the bottom of the vertical frame 22 and is fixed with a gear four 24. The outer surface of the gear four 24 is meshed with a gear five 25. The gear five 25 is fixedly connected to the adjacent rotating seat 18. An ash groove 26 is provided inside the vertical frame 22. A plurality of comb teeth 27 are fixed on the left and right sides of the ash groove 26 inside the vertical frame 22. A slideway 28 is provided inside the ash trough 26, and a scraper 29 is slidably connected to the slideway 28 and the inside of the ash trough 26. A vertical rod 30 is fixed to one end of the scraper 29 located outside the vertical frame 22, and the top of the vertical rod 30 is fixedly connected to the lower surface of the top plate 3. The top plate 3, the filtering mechanism 1 and the locking mechanism 2 are jointly provided with four guide rods 4, a mounting plate 5 is fixed on the top of the guide rods 4, a shock absorbing spring 6 is sleeved on the outer surface of the guide rods 4 between the top plate 3 and the mounting plate 5, and the shock absorbing spring 6 is fixedly connected to the mounting plate 5 and the top plate 3 respectively, and the upper surface of the shock absorbing block 32 is in contact with the lower surface of the protective box 7.

[0023] When in use, the device is installed to the top of the civil air defense space through the mounting plate 5 and the bolts, so that the air inlets 8 on the left and right sides are connected with the ventilation duct. During operation, the ventilation duct transports external air into the device, and the air is discharged into the civil air defense space through the air outlet 9 under the filtering of the filter cloth 21 and the filter cartridge 12 in sequence, thereby maintaining suitable air conditions in the civil air defense space; The flowing air causes the wind wheel 16 to rotate, and the cartridge seat 10 drives the filter cartridge 12 to rotate under the speed transmission of the gear 1 14 and the gear 2 15, so that the positions of the two sides of the filter cartridge 12 facing the air inlet 8 are constantly changed. At the same time, the reel 20 is rotated under the transmission of the gear 3 17 and the rotating seat 18, so that one of the two reels 20 in the same group reels the filter cloth 21 and the other reels the filter cloth 21, so that the contact surface between the filter cloth 21 and the filter cartridge 12 is constantly changed, so as to ensure that the non-woven filter cloth 21 always has a clean part participating in the filtration, avoiding the problem of affecting the filtration effect due to excessive impurities on the surface of the filter cloth 21, and making the filtration process more stable and continuous; And under the transmission of gear five 25 and gear four 24, the cleaning cylinder 23 located between the two reels 20 is continuously rotated, and the surface of the cleaning cylinder 23 is provided with bristles to brush the surface of the filter cloth 21 after filtration, and under the combing of the comb teeth 27, the fluff, wool and other debris are allowed to enter the ash trough 26 for storage, so that the service life of the filter cloth 21 is increased and it can be reused; When the filter mechanism 1 is lowered to separate the filter mechanism 1 from the top plate 3, the vertical rod 30 connected to the top plate 3 causes the scraper 29 to slide relatively inside the slideway 28 and the ash trough 26, thereby lifting the debris inside the ash trough 26 to facilitate cleaning; The filter cartridge 12 is used for fine filtration, and a filter cloth 21 is set on the outer surface of the filter cartridge 12 for preliminary filtration, forming a two-stage filtration structure. The filter cloth 21 can first intercept larger particles and impurities such as fluff and wool, reduce the number of pollutants entering the filter cartridge, and enable the filter cartridge 12 to focus more on fine filtration. Activated carbon and other materials can be selected to absorb and filter toxic and harmful gases, thereby improving the overall filtration accuracy and effect, and better ensuring the air quality in the civil air defense space; The filter cloth 21 shares the filtering load of the filter cartridge 12 , reduces the speed at which the filter cartridge is clogged, and can thereby extend the service life of the filter cartridge 12 , reduce the replacement frequency of the filter cartridge 12 , and reduce maintenance costs.

[0024] Reference Figure 3 A plurality of gear teeth are fixed to the inner side wall of the cartridge seat 10, and the cartridge seat 10 is meshedly connected with the gear 2 15 through the gear teeth.

[0025] Reference Figure 11-12The locking mechanism 2 includes a lifting box 31, and a plurality of shock-absorbing blocks 32 are fixed on the upper surface of the lifting box 31. Side grooves 33 are provided on the top of the shock-absorbing block 32 and the front and rear surfaces of the lifting box 31. The inner wall of the side groove 33 is rotatably connected to two ratchets 35 and two pawls 36. A gear six 34 is fixed on the surface of the ratchet 35, and a shift block 37 is integrally formed on the outer surface of the pawl 36. A pressure rod 38 is provided above the two shift blocks 37, and a sliding rod 39 is fixed on the lower surface of the pressure rod 38. The bottom end of the sliding rod 39 passes through the bottom of the lifting box 31. When it is necessary to open the filter mechanism 1 to replace the internal filter cartridge 12 and the filter cloth 21, the personnel pulls down the two sliding rods 39 to make the pressure rod 38 descend and press the shift block 37, so that the pawl 36 rotates away from the ratchet 35, so that the gear six 34 is released from the limit, and the personnel can move the filter mechanism 1 downward along the guide rod 4, so that the top opening of the filter mechanism 1 is exposed, so as to facilitate the personnel to roll up the drum 20, the filter cartridge 12, and the filter cloth 21; During vibration, the shock absorbing spring 6 and the shock absorbing block 32 made of rubber material can provide shock absorbing protection for the filter mechanism 1, thereby preventing the internal structure from being damaged and losing the filtering effect due to excessive vibration.

[0026] Reference Figure 11-12 A plurality of tooth grooves are provided below the outer surface of the guide rod 4, and the guide rod 4 is meshed and connected with the adjacent gear six 34 through the tooth grooves.

[0027] Reference Figure 1-11 The guide rod 4 is slidably connected to the top plate 3, the protective box 7, and the lifting box 31 respectively, and the top plate 3, the protective box 7, and the lifting box 31 can all be lifted and moved along the guide rod 4.

[0028] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A human air defense filtering device with protective shock absorption function, comprising a filtering mechanism (1), characterized in that: A locking mechanism (2) is provided below the filtering mechanism (1), a top plate (3) is provided above the filtering mechanism (1), and a rotating frame (11) is rotatably connected inside the top plate (3); The filtering mechanism (1) comprises a protective box (7), the left and right sides of the protective box (7) are penetrated with air inlets (8), the lower part of the protective box (7) is provided with a through-type air outlet (9), the lower part of the protective box (7) is rotatably connected with a cartridge seat (10), a filter cartridge (12) is provided between the cartridge seat (10) and the rotating frame (11), a cross frame (13) is fixed inside the air outlet (9), a gear 1 (14) and a gear 2 (15) are rotatably connected on the upper surface of the cross frame (13) from left to right in sequence, a wind wheel (16) is fixed inside the gear 1 (14), and the outer surface of the cartridge seat (10) is meshingly connected with four gears 3 (17), 4 gears 5 (18) and 6 (19). The outer surfaces of the three gears (17) are meshingly connected with a rotating seat (18), and the rotating seat (18) and the three gears (17) are rotatably connected to the inner lower surface of the protection box (7). A cylinder rod (19) is fixed at the center of the upper surface of the rotating seat (18), and a reel (20) is sleeved on the outer surface of the cylinder rod (19). The four reels (20) are divided into two groups, and the outer surfaces of the front and rear two reels (20) of each group are jointly rolled with a filter cloth (21). A vertical frame (22) is provided between two adjacent rotating seats (18), and the vertical frame (22) is fixedly connected to the inner lower surface of the protection box (7). A cleaning cylinder (23) is rotatably connected inside the vertical frame (22).

2. The human air defense filter device with protective shock absorption function according to claim 1, characterized in that: The bottom end of the cleaning cylinder (23) passes through the bottom of the vertical frame (22) and is fixed with a gear four (24). The outer surface of the gear four (24) is meshingly connected with a gear five (25). The gear five (25) is fixedly connected to the adjacent rotating seat (18). An ash groove (26) is provided inside the vertical frame (22). A plurality of comb teeth (27) are fixed on the left and right sides of the ash groove (26) inside the vertical frame (22). A slideway (28) is provided inside the ash groove (26). A scraper (29) is slidably connected to the slideway (28) and the inside of the ash groove (26). A vertical rod (30) is fixed to one end of the scraper (29) located outside the vertical frame (22). The top of the vertical rod (30) is fixedly connected to the lower surface of the top plate (3).

3. The human air defense filter device with protective shock absorption function according to claim 2 is characterized in that: A plurality of gear teeth are fixed to the inner side wall of the cartridge seat (10), and the cartridge seat (10) is meshedly connected with the second gear (15) via the gear teeth.

4. The human air defense filter device with protective shock absorption function according to claim 1, characterized in that: The locking mechanism (2) comprises a lifting box (31), a plurality of shock absorbing blocks (32) are fixed on the upper surface of the lifting box (31), and side grooves (33) are provided on the top of the shock absorbing blocks (32) and the front and rear surfaces of the lifting box (31), and the inner side walls of the side grooves (33) are rotatably connected to two ratchets (35) and two pawls (36), a gear six (34) is fixed on the surface of the ratchet (35), and a shifting block (37) is integrally formed on the outer surface of the pawl (36), and a pressure rod (38) is provided above the two shifting blocks (37), and a sliding rod (39) is fixed on the lower surface of the pressure rod (38), and the bottom end of the sliding rod (39) passes through the bottom of the lifting box (31).

5. The human air defense filter device with protective shock absorption function according to claim 4, characterized in that: The top plate (3), the filtering mechanism (1) and the locking mechanism (2) are provided with four guide rods (4) in common. A mounting plate (5) is fixed to the top of the guide rods (4). A shock absorbing spring (6) is sleeved on the outer surface of the guide rods (4) between the top plate (3) and the mounting plate (5). The shock absorbing spring (6) is respectively fixedly connected to the mounting plate (5) and the top plate (3). The upper surface of the shock absorbing block (32) is in contact with the lower surface of the protective box (7).

6. The human air defense filter device with protective shock absorption function according to claim 5, characterized in that: A plurality of tooth grooves are provided below the outer surface of the guide rod (4), and the guide rod (4) is meshedly connected with the adjacent gear six (34) via the tooth grooves.

7. The human air defense filter device with protective shock absorption function according to claim 5, characterized in that: The guide rod (4) is slidably connected to the top plate (3), the protective box (7), and the lifting box (31) respectively.

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