A defrosting device for a cold storage cold air fan

Abstract

The application discloses a cold store cold air blower defrosting device and relates to the field of cold air blowers, which comprises a cold air blower body and a shell installed on the outside of the cold air blower body, a heat exchange element is installed on the inside of the shell, air inlet pipes and air outlet pipes are installed on the two sides of the heat exchange element, two mounting plates are arranged on the inner wall top of the shell, a plurality of scrapers are installed on the outside of the mounting plates, and the plurality of scrapers are evenly distributed between the heat dissipation fins of the heat exchange element; the defrosting mechanism is used for cleaning and collecting the frost layer on the heat exchange element, the defrosting mechanism is installed on the bottom of the shell, the defrosting mechanism comprises a material collecting box installed on the bottom of the shell, the scraper can move downwards along the heat dissipation fins of the heat exchange element through the defrosting mechanism, the frost layer on the heat dissipation fins is sent into the material collecting box, the defrosting and collection of the heat dissipation fins are realized, and the effect of defrosting and storage is achieved.

Description

Technical Field

[0001] This invention relates to the field of air coolers, specifically to a defrosting device for a cold storage air cooler. Background Technology

[0002] The cold storage air cooler is a key component of the cold storage refrigeration system. The refrigerant inside evaporates under low pressure, absorbing a large amount of heat. Then, the fan forces the air in the cold storage to flow through the cold heat exchange finned tubes, cooling the air and continuously circulating it in the storage, thereby continuously reducing the temperature inside the storage.

[0003] When a cold storage evaporative air cooler is working, air containing water vapor is blown over the cold finned tubes by the fan. The air is rapidly cooled, and the water vapor changes from a gaseous state to a liquid state, condensing into small water droplets that adhere to the finned tubes. Because the surface temperature of the finned tubes is far below zero degrees Celsius, these newly condensed water droplets instantly freeze into tiny ice crystals. As this process continues, more and more ice crystals accumulate and connect with each other, eventually forming a layer of frost covering the finned tubes and the entire surface of the evaporative air cooler. Existing defrosting devices mostly use brushes to scrape off the frost layer on the fins, but a large number of ice crystals remain on the brushes, and they can only remove the frost layer, making it difficult to treat the removed frost layer and achieve a dehumidification effect. Summary of the Invention

[0004] The purpose of this invention is to provide a defrosting device for cold storage air coolers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A defrosting device for a cold storage air cooler includes: an air cooler body and a housing fixedly installed on the outside of the air cooler body; a heat exchanger is fixedly installed on the inner side of the housing; an inlet pipe and an exhaust pipe are fixedly installed on both sides of the heat exchanger; two symmetrically distributed mounting plates are provided on the top of the inner wall of the housing; and multiple equally spaced scrapers are fixedly installed on the outer side of the mounting plates, with the multiple scrapers evenly distributed between the heat dissipation fins of the heat exchanger; the device also includes: a defrosting mechanism for cleaning and collecting frost on the heat exchanger; the defrosting mechanism is installed at the bottom of the housing. The system includes a receiving box fixedly installed at the bottom of the housing, which collects the frost layer cleaned by the scraper; a cleaning mechanism for cleaning the frost layer remaining on the scraper, which is installed on the outside of the mounting plate and includes multiple pull ropes equidistantly arranged on the outside of the mounting plate, which discharge the frost layer from the scraper; and a discharge mechanism for concentrating and cleaning the frost layer accumulated in the receiving box, which is installed on the inside of the receiving box and includes an electric heating plate fixedly installed at the bottom of the inner wall of the receiving box, which melts the frost layer.

[0007] Preferably, the defrosting mechanism further includes a mounting box disposed on the outside of the mounting plate. Two symmetrically distributed mounting grooves are formed at the end of the mounting box away from the scraper. A sleeve is fixedly mounted on the inner side of each mounting groove. A U-shaped plate is sleeved between the two sleeves. A first coil spring is fixedly mounted between the outer side of the sleeve and the inner side of the U-shaped plate. Protrusions are formed at both ends of the U-shaped plate, and each of the two protrusions contacts one of the two mounting grooves. Two symmetrically distributed movable blocks are fixedly mounted on the top of the U-shaped plate, and a movable groove for limiting the sliding movement of the movable blocks is formed on the inner side of the housing. An electric screw is rotatably mounted on the inner side of the moving slot, and the moving block is threaded onto the outer side of the electric screw. An optical shaft for limiting the sliding of the moving block is fixedly mounted on the inner side of the moving slot. Two symmetrically distributed sealing grooves are opened at the bottom of the housing. A sealing plate is provided on the inner side of the sealing groove. Two symmetrically distributed positioning rods are fixedly mounted on one end of the sealing plate. A positioning hole for limiting the insertion of the positioning rod is opened on the outer side of the housing, and a second coil spring is fixedly installed between the outer side of the positioning rod and the inner side of the positioning hole. The two sealing plates are respectively located directly above the two mounting boxes.

[0008] Preferably, the cleaning mechanism further includes a mounting base fixedly installed on the mounting plate at the end away from the scraper, one end of the pull rope fixedly installed on the outside of the mounting base, a through hole for the scraper to pass through on the outside of the mounting box, a rotating rod rotatably installed on the inside of the mounting box, a winding wheel fixedly installed between the outside of the rotating rod and the pull rope, both ends of the rotating rod extending to the outside of the mounting box, and a sleeve sleeved on the outside of the rotating rod, both ends of the rotating rod being fixedly installed with a first gear, a second gear being fixedly installed at the end of the sleeve away from the mounting box, an elongated groove for the first gear and the second gear to move on the inside of the housing, a first rack and a second rack fixedly installed on the inside of the elongated groove, the first rack being located below the first gear, and the second rack being located below the second gear, and a plurality of first springs evenly distributed between the mounting plate and the inside of the mounting box being fixedly installed.

[0009] Preferably, the discharge mechanism further includes a mounting rod rotatably mounted on the inner side of the sealing plate. Multiple equally spaced cutting plates are fixedly mounted on the outer side of the mounting rod. A receiving groove for the cutting plates to slide and be limited is provided on the outer side of the sealing plate. A push plate is fixedly mounted between the multiple cutting plates. A sliding cavity for the push plate to slide and be limited is provided on the inner side of the sealing plate. Multiple equally spaced arc-shaped rods are fixedly mounted on the side of the push plate away from the cutting plates. The arc-shaped rods slide to the outer side of the sealing plate. A stop block is fixedly mounted on the end of the arc-shaped rod away from the push plate. A second spring is sleeved on the outer side of the arc-shaped rod, and the second spring is fixedly mounted between the sealing plate and the stop block.

[0010] Preferably, a protective grille is fixedly installed on the side of the housing away from the air cooler body.

[0011] Preferably, the end of the sealing plate away from the positioning rod is made of rubber.

[0012] Preferably, the bottom of the mounting box is provided with an arc-shaped protrusion, and the arc-shaped protrusion is located directly above the sealing plate.

[0013] Preferably, a baffle is provided at the bottom of the elongated groove of the housing, and one end of the baffle is fixedly installed at the bottom of the sealing plate.

[0014] Preferably, a slider is rotatably mounted on the side of the abutment away from the arc-shaped rod.

[0015] Preferably, a drain pump is fixedly installed on the inner side of the receiving box, and the pipe of the drain pump extends to the outer side of the receiving box.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The present invention uses a defrosting mechanism to enable a scraper to move downward along the heat exchange fins of the heat exchanger, sending the frost layer on the heat exchange fins into the collection box, thereby achieving the defrosting and collection of the heat exchange fins and achieving the effect of defrosting and storage.

[0018] 2. The present invention, through the cleaning mechanism, can make the mounting box swing downward as the mounting box pushes the sealing plate downward, and rewind the pull rope, so that the scraper moves along the perforation on the mounting box, which is convenient for cleaning the residual frost layer on the scraper. The inclined scraper can also quickly put the frost layer into the receiving box, thereby improving the defrosting efficiency and facilitating the defrosting again.

[0019] 3. The present invention, through the discharge mechanism, enables the abutment on the arc-shaped rod to contact the inner side of the receiving box when the sealing plate swings downward, and multiple cutting plates can be moved out from the storage groove on the sealing plate, so as to chop up the frost layer remaining on the sealing plate and discharge the frost layer into the bottom of the storage box, thereby improving the discharge efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the receiving box and the shell in this invention;

[0022] Figure 3 This is a partial cross-sectional view of the sealing plate and positioning rod in this invention.

[0023] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the cutting plate and the push plate in this invention;

[0024] Figure 5 This is a partial cross-sectional structural diagram of the moving block and electric screw in this invention;

[0025] Figure 6 This is a schematic diagram of a partial cross-sectional structure of the scraper and U-shaped plate in this invention;

[0026] Figure 7 This is a partial cross-sectional view of the winding reel and mounting box in this invention.

[0027] Figure 8 This is a schematic diagram of the structure of the first gear and the first rack in this invention.

[0028] In the diagram: 1. Air cooler body; 2. Shell; 3. Heat exchanger; 4. Inlet pipe; 5. Exhaust pipe; 6. Mounting plate; 7. Scraper; 8. Take-up box; 9. Pull rope; 10. Heating plate; 11. Sleeve; 12. U-shaped plate; 13. First coil spring; 14. Moving block; 15. Electric screw; 16. Sealing plate; 17. Positioning rod; 18. Second coil spring; 19. Mounting box; 20. Mounting base; 21. Rotating rod; 22. First gear; 23. Second gear; 24. First rack; 25. Second rack; 26. Mounting rod; 27. Cutting plate; 28. Push plate; 29. ​​Arc rod; 30. Abutment block; 31. Second spring; 32. Protective grille; 33. Baffle plate; 34. Sliding ball; 35. Drain pump; 36. Take-up reel; 37. First spring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-8 The figure shows a defrosting device for a cold storage air cooler, including an air cooler body 1 and a housing 2 fixedly installed on the outside of the air cooler body 1. A heat exchanger 3 is fixedly installed on the inside of the housing 2. An air inlet pipe 4 and an exhaust pipe 5 are fixedly installed on both sides of the heat exchanger 3, respectively. The air inlet pipe 4 injects flowable gas into the heat exchanger 3. The heat is absorbed by the heat dissipation fins on the heat exchanger 3 and discharged through the exhaust pipe 5, thereby cooling the cold storage. Two symmetrically distributed mounting plates 6 are provided on the top of the inner wall of the housing 2. Multiple equally spaced scrapers 7 are fixedly installed on the outside of the mounting plates 6. The multiple scrapers 7 are evenly distributed between the heat dissipation fins of the heat exchanger 3, so that when the mounting plates 6 move downward, the scrapers 7 can clean the frost layer inside the heat dissipation fins.

[0031] The defrosting mechanism includes a collection box 8 fixedly installed at the bottom of the housing 2, which collects the frost layer cleaned by the scraper 7. The defrosting mechanism also includes a mounting box 19 located on the outside of the mounting plate 6. Two symmetrically distributed mounting slots are provided at the end of the mounting box 19 furthest from the scraper 7, and sleeves 11 are fixedly installed on the inner side of each slot. A U-shaped plate 12 is fitted between the two sleeves 11. A first coil spring 13 is fixedly installed between the outer side of the sleeves 11 and the inner side of the U-shaped plate 12. Protrusions are provided at both ends of the U-shaped plate 12, and each protrusion contacts one of the two mounting slots. The elasticity of the first coil spring 13 causes the sleeves 11 to drive the two mounting slots on the mounting box 19 to contact the two protrusions respectively. The U-shaped plate 12 and the U-shaped plate 19 can be in a horizontal state. Two symmetrically distributed movable blocks 14 are fixedly installed on the top of the U-shaped plate 12. The inner side of the housing 2 is provided with a movable groove for the movable blocks 14 to slide and limit. An electric screw 15 is rotatably installed on the inner side of the movable groove, and the movable blocks 14 are threaded onto the outer side of the electric screw 15. An optical shaft for the movable blocks 14 to slide and limit is fixedly installed on the inner side of the movable groove. When the electric screw 15 is running, it can drive the movable blocks 14 to move downward along the inner side of the movable groove and the outer side of the optical shaft. The movable blocks 14 can drive the U-shaped plate 12 to move, so that the U-shaped plate 12 drives the mounting box 19 to move synchronously through the sleeve 11. The mounting box 19 drives the scraper 7 to move along the mounting plate 6. As the heat exchanger fins of the heat exchanger 3 move downwards, the frost layer on the heat exchanger fins is scraped off. Two symmetrically distributed sealing grooves are provided at the bottom of the housing 2. A sealing plate 16 is provided inside the sealing grooves. Two symmetrically distributed positioning rods 17 are fixedly installed at one end of the sealing plate 16. A positioning hole is provided on the outside of the housing 2 for the positioning rods 17 to be inserted into. A second coil spring 18 is fixedly installed between the outside of the positioning rod 17 and the inside of the positioning hole. The two sealing plates 16 are located directly above the two mounting boxes 19, so that when the mounting box 19 contacts the sealing plate 16, it can push the sealing plate 16 to swing downwards around the positioning rod 17 as a fulcrum, compressing the second coil spring 18, facilitating the pushing of the frost layer into the receiving area. Inside the housing 8, when the mounting box 19 is away from the sealing plate 16, the elasticity of the second coil spring 18 can be used to make the sealing plate 16 swing upward and reset, thereby sealing the sealing groove. A protective grille 32 is fixedly installed on the side of the housing 2 away from the air cooler body 1 to facilitate the entry of air into the housing 2. The end of the sealing plate 16 away from the positioning rod 17 is made of rubber, so that the sealing plate 16 can press against the inner side of the sealing groove of the housing 2 through the rubber end, thereby improving the sealing performance between the sealing plate 16 and the sealing groove. An arc-shaped protrusion is provided at the bottom of the mounting box 19, and the arc-shaped protrusion is located directly above the sealing plate 16, so that the mounting box 19 can push the sealing plate 16 downward through the arc-shaped protrusion to prevent the scraper 7 from colliding with the sealing plate 16.

[0032] Example 2: Please refer to Figures 2-8This embodiment further illustrates Example 1. The cleaning mechanism shown in the figure includes multiple pull ropes 9 equidistantly arranged on the outside of the mounting plate 6. The pull ropes 9 discharge the frost layer on the scraper 7. The cleaning mechanism also includes a mounting base 20 fixedly installed on the end of the mounting plate 6 away from the scraper 7. One end of the pull rope 9 is fixedly installed on the outside of the mounting base 20. The outside of the mounting box 19 has a through hole for the scraper 7 to pass through. The pull rope 9 can pull the mounting plate 6 along the inside of the mounting box 19 through the mounting base 20, so that the mounting plate 6 pulls the scraper 7 along... The perforated movement of the mounting box 19 cleans the residual frost layer on the scraper 7. A rotating rod 21 is rotatably mounted on the inner side of the mounting box 19. A winding wheel 36 is fixedly mounted between the outer side of the rotating rod 21 and the pull rope 9, so that when the rotating rod 21 rotates, the winding wheel 36 can wind up the pull rope 9, realizing the movement of the mounting plate 6. Both ends of the rotating rod 21 extend to the outer side of the mounting box 19, and the sleeve 11 is sleeved on the outer side of the rotating rod 21. A first gear 22 is fixedly mounted on both ends of the rotating rod 21. The sleeve 11 is located away from the mounting box 19. A second gear 23 is fixedly installed at one end. An elongated groove is provided on the inner side of the housing 2 for the movement of the first gear 22 and the second gear 23. A first rack 24 and a second rack 25 are fixedly installed on the inner side of the elongated groove. The first rack 24 is located below the first gear 22, and the second rack 25 is located below the second gear 23. When the U-shaped plate 12 moves downward, the first gear 22 can contact the first rack 24, causing the first rack 24 to drive the rotating rod 21 to rotate via the first gear 22, thereby enabling the winding wheel 36 to wind up the pull rope 9. Furthermore, the second gear 23 can contact the second rack 25 to rotate the sleeve 11, causing the mounting box 19 to swing downwards, facilitating the discharge of the frost layer into the receiving box 8. Multiple first springs 37 are fixedly installed between the mounting plate 6 and the inner side of the mounting box 19, and a baffle 33 is provided at the bottom of the long groove of the housing 2. One end of the baffle 33 is fixedly installed at the bottom of the sealing plate 16, so that when the sealing plate 16 seals the sealing groove, the baffle 33 can stick to the bottom of the long groove inside the housing 2 to achieve the sealing of the long groove.

[0033] Example 3: Please refer to Figures 2-6This embodiment further illustrates other embodiments. The discharge mechanism shown in the figure includes an electric heating plate 10 fixedly installed at the bottom of the inner wall of the receiving box 8. The electric heating plate 10 can melt the frost layer. The discharge mechanism also includes a mounting rod 26 rotatably installed on the inner side of the sealing plate 16. Multiple cutting plates 27 are fixedly installed on the outer side of the mounting rod 26 at equal intervals. A receiving groove for limiting the sliding of the cutting plates 27 is opened on the outer side of the sealing plate 16. A push plate 28 is fixedly installed between the multiple cutting plates 27. A sliding cavity for limiting the sliding of the push plate 28 is opened on the inner side of the sealing plate 16. Multiple arc-shaped rods 29 are fixedly installed on the side of the push plate 28 away from the cutting plates 27. The arc-shaped rods 29 slide to the outer side of the sealing plate 16. A stop block 30 is fixedly installed on the end of the arc-shaped rod 29 away from the push plate 28. A second spring 31 is sleeved on the outer side of the arc-shaped rod 29 and fixedly installed on the sealing plate 16. Between the sealing plate 16 and the abutment block 30, when the sealing plate 16 swings downward, the abutment block 30 can contact the inner side of the receiving box 8. The abutment block 30 pushes the push plate 28 to move through the arc rod 29 and compresses the second spring 31, so that the push plate 28 pushes the cutting plate 27 to swing around the mounting rod 26 as the fulcrum. The cutting plate 27 can chop the frost layer on the sealing plate 16, making it easier to discharge the frost layer into the receiving box 8. The electric heating plate 10 heats and liquefies the accumulated frost layer, making it easier to store. A sliding ball 34 is rotatably installed on the side of the abutment block 30 away from the arc rod 29, so that the abutment block 30 can contact the inner side of the receiving box 8 through the sliding ball 34, making it easier for the abutment block 30 to push the arc rod 29 to move. A drain pump 35 is fixedly installed on the inner side of the receiving box 8, and the pipe of the drain pump 35 extends to the outer side of the receiving box 8, so that after the electric heating plate 10 melts the frost layer, the water can be discharged through the drain pump 35.

[0034] Working principle: First, the operator starts four electric screws 15, which drive the corresponding moving blocks 14 to move downwards along the inner side of the moving groove of the housing 2 and the outer side of the optical axis. The moving blocks 14 drive the U-shaped plate 12 to move, which in turn drives the mounting box 19 to move downwards along the inner side of the housing 2 through the sleeve 11. The mounting box 19 drives the scraper 7 to move downwards along the gaps between the heat dissipation fins of the heat exchanger 3 through the mounting plate 6. The scraper 7 can scrape off the frost layer on the heat dissipation fins downwards. When the arc-shaped protrusion at the bottom of the mounting box 19 contacts the top of the sealing plate 16, it pushes the sealing plate 16 to swing downwards with the positioning rod 17 as the fulcrum, and compresses the second coil spring 18, opening the sealing groove at the bottom of the housing 2. Simultaneously, the first gear 22 on the rotating rod 21 and the first rack 24 inside the housing 2 move downwards. The first rack 24 drives the rotating rod 21 to rotate via the first gear 22. The rotating rod 21 drives the winding wheel 36 to rotate, causing the winding wheel 36 to wind up the pull rope 9. The other end of the pull rope 9 pulls the mounting plate 6 along the inner side of the mounting box 19 via the mounting base 20. The mounting plate 6 compresses the first spring 37. Furthermore, the mounting plate 6 pulls the scraper 7 along the through hole of the mounting box 19, pushing out the frost layer on the scraper 7. At the same time, the second gear 23 on the sleeve 11 contacts the second rack 25. The second rack 25 drives the sleeve 11 to rotate via the second gear 23. The sleeve 11 compresses the first coil spring 13 simultaneously. The mounting box 19 is swung downwards, allowing the frost removed from the scraper 7 to fall into the receiving box 8, with some of the frost landing on the sealing plate 16. At this time, the heating plate 10 heats the frost in the receiving box 8, melting it. Simultaneously, the sealing plate 16 moves the arc-shaped rod 29 closer to the inside of the receiving box 8, causing the sliding ball 34 on the abutment block 30 to contact the inside of the receiving box 8. The reaction force from the inside of the receiving box 8 on the sliding ball 34 causes the sliding ball 34 to push the arc-shaped rod 29 through the abutment block 30, moving the push plate 28 and compressing the second spring 31. The push plate 28 then pushes the cutting plate 27 to swing around the mounting rod 26 as a fulcrum. The cutting plate 27 then breaks up the frost on the sealing plate 16, preventing frost accumulation. In this situation, the melting speed of the frost layer by the heating plate 10 is increased, and the water in the receiving box 8 is discharged by the drain pump 35. Finally, the electric screw 15 drives the moving block 14 to reset upward, and the mounting box 19 moves away from the sealing plate 16. The rebound force of the second coil spring 18 causes the sealing plate 16 to swing upward and reset, sealing the sealing groove of the housing 2. After the first gear 22 and the second gear 23 move away from the first rack 24 and the second rack 25 respectively, the rebound force of the first coil spring 13 causes the mounting box 19 to swing and reset, the rotating rod 21 rotates, and the rebound force of the first spring 37 causes the mounting plate 6 to move and reset, so that the heat dissipation fins can be defrosted again, thereby improving the defrosting efficiency and facilitating the cleaning and collection of the frost layer.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A defrosting device for a cold storage air cooler, characterized in that, include: The air cooler body (1) and the housing (2) installed on the outside of the air cooler body (1) are provided. A heat exchanger (3) is installed on the inside of the housing (2). An air inlet pipe (4) and an exhaust pipe (5) are installed on both sides of the heat exchanger (3). Two mounting plates (6) are provided on the top of the inner wall of the housing (2). Multiple scrapers (7) are installed on the outside of the mounting plates (6). The multiple scrapers (7) are evenly distributed between the heat dissipation fins of the heat exchanger (3). Also includes: A defrosting mechanism is installed at the bottom of the housing (2). The defrosting mechanism includes a receiving box (8) installed at the bottom of the housing (2). The receiving box (8) can collect the frost layer cleaned by the scraper (7). An installation box (19) is provided on the outside of the mounting plate (6). Two symmetrically distributed mounting slots are opened at one end of the mounting box (19). A sleeve (11) is fixedly installed on the inner side of the mounting slot. A U-shaped plate (12) is sleeved between the two sleeves (11). A first coil spring (13) is installed between the outer side of the sleeve (11) and the inner side of the U-shaped plate (12). Both ends of the U-shaped plate (12) are provided with protrusions. The two protrusions are in contact with the two mounting slots respectively. Two moving blocks (14) are fixedly installed on the top of the U-shaped plate (12). The inner side of the body (2) is provided with a moving groove for the moving block (14) to slide in a limited position. An electric screw (15) is rotatably installed on the inner side of the moving groove, and the moving block (14) is threaded onto the outer side of the electric screw (15). An optical shaft for the moving block (14) to slide in a limited position is installed on the inner side of the moving groove. Two sealing grooves are provided at the bottom of the housing (2). A sealing plate (16) is provided on the inner side of the sealing groove. Two symmetrically distributed positioning rods (17) are fixedly installed at one end of the sealing plate (16). A positioning hole is provided on the outer side of the housing (2) for the positioning rods (17) to be inserted in a limited position. A second coil spring (18) is installed between the outer side of the positioning rod (17) and the inner side of the positioning hole. The two sealing plates (16) are located directly above the two mounting boxes (19). A cleaning mechanism is installed on the outside of the mounting plate (6). The cleaning mechanism includes a plurality of pull ropes (9) arranged at equal intervals on the outside of the mounting plate (6). The pull ropes (9) discharge the frost layer on the scraper (7). A mounting base (20) is installed at one end of the mounting plate (6). One end of the pull ropes (9) is installed on the outside of the mounting base (20). A through hole is provided on the outside of the mounting box (19) for the scraper (7) to pass through. The material discharge mechanism is installed inside the receiving box (8). The material discharge mechanism includes an electric heating plate (10) fixedly installed at the bottom of the inner wall of the receiving box (8). The electric heating plate (10) can melt the frost layer.

2. The defrosting device for a cold storage air cooler according to claim 1, characterized in that: The cleaning mechanism also includes a rotating rod (21) rotatably mounted inside the mounting box (19). A winding wheel (36) is fixedly mounted between the outer side of the rotating rod (21) and the pull rope (9). Both ends of the rotating rod (21) extend to the outer side of the mounting box (19), and the sleeve (11) is sleeved on the outer side of the rotating rod (21). Both ends of the rotating rod (21) are fixedly mounted with a first gear (22). One end of the sleeve (11) is fixedly mounted with a second gear (23). The inner side of the housing (2) is provided with a long groove for the first gear (22) and the second gear (23) to move. The inner side of the long groove is equipped with a first rack (24) and a second rack (25). A plurality of first springs (37) are fixedly mounted between the mounting plate (6) and the inner side of the mounting box (19).

3. The defrosting device for a cold storage air cooler according to claim 2, characterized in that: The discharge mechanism also includes an installation rod (26) rotatably mounted on the inner side of the sealing plate (16). Multiple cutting plates (27) are fixedly mounted on the outer side of the installation rod (26), and a storage groove for the cutting plates (27) to slide in a limited position is provided on the outer side of the sealing plate (16). A push plate (28) is installed between the multiple cutting plates (27), and a sliding cavity for the push plate (28) to slide in a limited position is provided on the inner side of the sealing plate (16). Multiple arc-shaped rods (29) are fixedly mounted on one side of the push plate (28). The arc-shaped rods (29) slide to the outer side of the sealing plate (16). A stop block (30) is installed at one end of the arc-shaped rod (29). A second spring (31) is sleeved on the outer side of the arc-shaped rod (29), and the second spring (31) is fixedly installed between the sealing plate (16) and the stop block (30).

4. The defrosting device for a cold storage air cooler according to claim 1, characterized in that: A protective grille (32) is installed on the side of the housing (2) away from the air cooler body (1).

5. A defrosting device for a cold storage air cooler according to claim 1, characterized in that: The end of the sealing plate (16) away from the positioning rod (17) is made of rubber.

6. A defrosting device for a cold storage air cooler according to claim 1, characterized in that: The bottom of the mounting box (19) is provided with an arc-shaped protrusion, and the arc-shaped protrusion is located directly above the sealing plate (16).

7. A defrosting device for a cold storage air cooler according to claim 2, characterized in that: A baffle (33) is provided at the bottom of the elongated groove of the housing (2), and one end of the baffle (33) is installed at the bottom of the sealing plate (16).

8. A defrosting device for a cold storage air cooler according to claim 3, characterized in that: A slider (34) is rotatably mounted on one side of the abutment block (30).

9. A defrosting device for a cold storage air cooler according to claim 3, characterized in that: A drain pump (35) is installed inside the receiving box (8), and the pipe of the drain pump (35) extends to the outside of the receiving box (8).

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