Evaporator air defrosting system for quick freezing device

Abstract

The invention relates to the technical field of evaporator defrosting, in particular to an evaporator air defrosting system for a quick-freezing device, which comprises a quick-freezing device body, an evaporator on the quick-freezing device body, a reciprocating cleaning and scraping part mounted on the quick-freezing device body, and a melting promoting mechanism arranged on the reciprocating cleaning and scraping part, the reciprocating cleaning and scraping part is arranged on the evaporator, and the two-way air attack parts are arranged on the reciprocating cleaning and scraping part and locally located on the two sides of the reciprocating cleaning and scraping part, so that normal operation of the evaporator and the quick freezing device body is not hindered while the evaporator is effectively, uniformly and thoroughly defrosted in time to be prevented from being subjected to various negative effects, and long-time refrigeration interruption is not needed; and the defrosting layer is not melted at high temperature, so that large-amplitude cold and heat exchange cannot occur in the defrosting process, the internal temperature of the quick freezing device body cannot be influenced, and the influence on the quality of a frozen product is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of evaporator defrosting, and in particular to an evaporator air defrosting system for a quick freezing device. Background Art

[0002] A quick freezing device (rapid freezing device) is a device specifically used for quick freezing of food. It quickly lowers the temperature of food in an extremely low temperature environment to maintain the nutritional content and taste of the food. With the development of food processing technology, quick freezing devices are widely used in the food industry because they can quickly lower the temperature of food and maintain the freshness of food.

[0003] One of the core components of the quick freezing device is the evaporator, which converts liquid refrigerant into gas, thereby absorbing and taking away heat to achieve refrigeration. However, during the long-term operation of the quick freezing device, when the temperature of the evaporator is too low, the water vapor in the air will condense on its surface to form water droplets. As time goes by, the water droplets will form water beads and gradually freeze into frost, eventually forming a frost layer. Or if there is too much water in the refrigeration system, such as the water brought in by the food and the water lost when the surface of the food is air-dried, it will increase the water vapor content on the surface of the evaporator, which will also cause the evaporator to frost. After the evaporator is frosted, the effective contact area with the air will be reduced, the thermal resistance will be increased, the heat transfer coefficient will be reduced, and then the refrigeration efficiency will be reduced, resulting in a decrease in the refrigeration effect, affecting the freezing speed and quality of the product. Long-term frosting may even cause corrosion and deformation of the evaporator surface, thereby shortening the service life of the equipment. Therefore, it is crucial to defrost the evaporator in a timely and effective manner.

[0004] However, some existing defrosting methods have defects or shortcomings. First, although manual defrosting is simple, it is very labor-intensive, time-consuming and labor-intensive, and the defrosting is uneven. In addition, improper operation can easily cause the evaporator to deform or damage, thereby causing accidents such as refrigerant leakage. Secondly, the water defrosting method must be carried out when the quick-freezing device is out of use, which will interrupt the refrigeration for a long time. In addition, spraying the evaporator with warm water to melt the frost layer will increase the internal temperature of the quick-freezing device. At the same time, the water defrosting method will waste a lot of water resources. In addition, electric defrosting with electric heating wire as the main body must also be carried out when the equipment is stopped. In addition, the large-scale hot and cold exchange during the electric defrosting process is also very likely to affect the internal temperature of the quick-freezing device, thereby adversely affecting the stored items and may affect the quality of the products being frozen, especially for highly sensitive foods such as seafood and fruits and vegetables. Summary of the invention

[0005] The object of the present invention is to provide an evaporator air defrosting system for a quick freezing device to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides an evaporator air defrosting system for a quick freezing device, comprising: a quick freezing device body and an evaporator on the quick freezing device body, a reciprocating scraping part installed on the quick freezing device body, a melting promotion mechanism arranged on the reciprocating scraping part, and a bidirectional air attack part arranged on the reciprocating scraping part and partially located on both sides of the reciprocating scraping part, wherein:

[0007] Driving the reciprocating scraping part can carry the bidirectional air attack part to evenly spray the frost layer on the evaporator to remove the surface layer of the frost layer;

[0008] The reciprocating scraping part can be driven to carry the melting promotion mechanism to uniformly spray fine granular melting agent onto the frost layer on the evaporator, so that the melting agent adheres to the frost layer;

[0009] The reciprocating scraping part is suitable for being closely attached to the surface of the evaporator and scraping back and forth to gradually scrape off the frost layer;

[0010] The bidirectional air attack portion is suitable for cleaning and blowing the surface of the evaporator after the reciprocating scraping portion removes the frost layer, so as to remove the residual substances on the surface of the evaporator.

[0011] Furthermore, the reciprocating scraping part includes a long groove block installed on the top of the quick-freezing device body, a rack fixedly installed in the long groove block, two grooves respectively provided on the two inner side walls of the long groove block, and the rack and the two grooves are arranged along the long side direction of the long groove block, a plate slidably arranged in the two grooves, a first motor installed on the side of the plate, a gear installed on the output shaft of the first motor, and the gear meshes with the rack, a main body arm fixed on the plate, a column arranged at the tail of the main body arm, a bottom plate connected to the bottom surface of the column, a protrusion slidably installed on the side of the bottom plate, a side plate connected to the protrusion, a scraper connected to one end of the side plate, and an electric push rod installed on the top of the bottom plate;

[0012] The output end of the electric push rod is connected to the protrusion;

[0013] The scraper faces the surface of the evaporator;

[0014] The two grooves are located above the rack.

[0015] Furthermore, the main body arm is connected to a horizontal mounting platform;

[0016] The melting promotion mechanism includes a rectangular channel installed on the side of the side panel, and the open end of the rectangular channel faces the surface of the evaporator, a first positioning frame installed on the top of the rectangular channel, a storage bin installed in the first positioning frame, and the discharge end of the storage bin is connected to the rectangular channel, one end is connected to the first blowing port on the side of the storage bin, a first blower is arranged on the horizontal mounting platform, and a first air duct with one end connected to the output end of the first blower and the other end connected to the other end of the first blowing port;

[0017] The first air blowing port is located at the rear of the material storage bin and the blowing direction of the first air blowing port is perpendicular to the discharging direction of the material storage bin.

[0018] Furthermore, the bidirectional air attack part includes an extension platform installed at the rear of the base plate, a middle channel arranged on the extension platform, a first right-angle plate integrally connected to the side of the base plate, a second air outlet installed at the end of the first right-angle plate, a first air delivery channel connected between the middle channel and the second air outlet, a second blower arranged on the horizontal mounting platform and parallel to the first blower, and a second air duct having one end connected to the output end of the second blower;

[0019] The other end of the second air duct extends into the middle channel and is aligned with the first air delivery channel;

[0020] The second air blowing port obliquely faces the surface of the evaporator.

[0021] Furthermore, the bidirectional air attack part also includes a second right-angle plate integrally connected to the other side of the bottom plate, a third air outlet installed at the end of the second right-angle plate, connected to the second air delivery channel between the middle channel and the third air outlet, a hard ring installed on the tail of one end of the second air duct extending into the middle channel, and a second motor arranged on the extended platform, and the output shaft of the second motor extends into the middle channel and is connected to the hard ring;

[0022] The second air duct is centrally located between the first air delivery channel and the second air delivery channel;

[0023] The second air outlet and the third air outlet are respectively located on two sides of the scraper and are in an outward-facing "X" shape;

[0024] The second air blowing port and the third air blowing port are close to the surface of the evaporator.

[0025] Further, the upright post is slidably inserted on the main body arm;

[0026] A second positioning frame is installed on the main body arm, and a cylinder is installed on the second positioning frame;

[0027] The output end of the cylinder is connected to the top end of the column.

[0028] Furthermore, the melting promotion mechanism also includes a hand-tightened bolt screwed on the top surface of the storage bin;

[0029] The hand-tightened bolt is inserted snugly into the discharge end of the storage bin;

[0030] The end of the hand-tightening bolt is in a pointed cone shape, and the pointed cone portion slightly extends into the rectangular channel.

[0031] Furthermore, the ablation-promoting mechanism further comprises a collecting cylinder mounted on the bottom of the rectangular channel;

[0032] The collecting cylinder is connected to the rectangular channel and is located directly below the discharge end of the storage bin.

[0033] Further, the first air duct and the second air duct are corrugated tubes;

[0034] The end sections of the second air outlet and the third air outlet are decreasing.

[0035] Furthermore, an evaporator air defrosting system for a quick freezing device further comprises a collecting tank member mounted on an outer side wall of the quick freezing device body;

[0036] The collecting trough is located below the evaporator and both ends of the collecting trough protrude from the evaporator.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The evaporator air defrosting system for the quick freezing device can firstly blow the frosted surface of the evaporator with a strong airflow under the cooperation of the reciprocating scraping part and the two-way air attack part, so as to treat the frost layer on the evaporator for the first time by means of high-speed air flow, remove the loose frost on the surface, realize defrosting and lay a good foundation for the subsequent defrosting process;

[0039] 2. The evaporator air defrosting system for the quick freezing device can spray the melting agent evenly onto the frosted surface of the evaporator with the support of a strong airflow under the cooperation of the reciprocating scraping part and the melting promotion mechanism, so that the melting agent is evenly attached to the frost layer, prompting the frost layer to melt quickly to a semi-melted state or completely melted, thereby effectively reducing the bonding strength between the frost layer and the evaporator surface, greatly reducing the difficulty of defrosting, and ensuring that the frost layer can be completely removed in the subsequent defrosting process;

[0040] 3. The air defrosting system for the evaporator of the quick freezing device can completely clean the surface of the evaporator by reciprocating scraping action through the reciprocating scraping part, so as to scrape off all the frost layer treated by the melting promotion mechanism, complete the last treatment of the frost layer, and then ensure that all the frost layer is removed and the surface of the evaporator is restored to cleanliness;

[0041] 4. The air defrosting system for the evaporator of the quick freezing device can blow the evaporator surface immediately after the reciprocating scraper part while the reciprocating scraper part continuously scrapes the frost layer through the two-way air attack part, so as to blow the residual liquid mixed with the melting agent away from the evaporator surface or dry it, thereby preventing the liquid mixed with the melting agent from being attached to the evaporator for a long time to cause serious corrosion to it, and avoiding a significant impact on the service life of the evaporator;

[0042] 5. The evaporator air defrosting system of the quick-freezing device can completely remove the frost layer on the evaporator in a multi-step, zoned and flexible cleaning manner. It can promptly, effectively, evenly and thoroughly defrost to prevent the evaporator from being affected by various negative influences without hindering the normal operation of the evaporator and the quick-freezing device body. It does not require long-term interruption of refrigeration, and does not use high temperature to melt the frost layer. There will be no large-scale heat exchange during the defrosting process, and the internal temperature of the quick-freezing device body will not be affected, which effectively prevents the quality of the products being frozen from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0044] Figure 1 A perspective view of the present invention is shown;

[0045] Figure 2 A first partial perspective view of the present invention is shown;

[0046] Figure 3 A second partial perspective view of the present invention is shown;

[0047] Figure 4 A third partial perspective view of the present invention is shown;

[0048] Figure 5 A fourth partial perspective view of the present invention is shown;

[0049] Figure 6 A partial stereoscopic view of the present invention at another angle is shown;

[0050] Figure 7 The present invention is shown Figure 3 A magnified image of point A;

[0051] Figure 8 The present invention is shown Figure 4 The enlarged view of point B;

[0052] Fig. 9 The present invention is shown Figure 5 Enlarged view of point C;

[0053] Fig.10 The present invention is shown Figure 5 The enlarged view of point D;

[0054] Fig.11 The present invention is shown Figure 6 Enlarged view of point E.

[0055] In the figures, the same reference numerals denote the same structural elements, wherein:

[0056] 1. Quick-freezing device body; 2. Evaporator; 3. Reciprocating scraping part; 31. Long groove block; 32. Rack; 33. Groove; 34. Flat plate; 35. First motor; 36. Gear; 37. Main arm; 371. Horizontal mounting table; 38. Column; 39. Bottom plate; 391. Protrusion; 392. Side panel; 393. Scraper; 394. Electric push rod; 4. Melting promotion mechanism; 41. Rectangular channel; 42. First positioning frame; 43. Storage bin; 44. First air outlet; 45. The first blower; 46. The first air duct; 47. The hand-tightened bolt; 48. The collecting tube; 5. The two-way air attack portion; 51. The extension platform; 52. The middle channel; 53. The first right-angle plate; 54. The second air outlet; 55. The first air supply channel; 56. The second blower; 57. The second air duct; 58. The second right-angle plate; 59. The third air outlet; 591. The second air supply channel; 592. The hard ring; 593. The second motor; 6. The second positioning frame; 7. The cylinder; 8. The collecting trough. DETAILED DESCRIPTION

[0057] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0058] like Figure 1-11 As shown, an evaporator air defrosting system for a quick freezing device comprises: a quick freezing device body 1 and an evaporator 2 on the quick freezing device body 1, a reciprocating scraping part 3 installed on the quick freezing device body 1, a melting promotion mechanism 4 arranged on the reciprocating scraping part 3, and a bidirectional air attack part 5 arranged on the reciprocating scraping part 3 and partially located on both sides of the reciprocating scraping part 3, wherein:

[0059] Driving the reciprocating scraping part 3 can carry the bidirectional air attack part 5 to evenly spray the frost layer on the evaporator 2 to remove the surface layer of the frost layer;

[0060] The reciprocating scraping part 3 can be driven to carry the melting promotion mechanism 4 to uniformly spray fine granular melting agent to the frost layer on the evaporator 2, so that the melting agent adheres to the frost layer. The melting agent is stored in the storage bin 43. Specifically, the melting agent can be fine granular chemical substances such as salt that can melt snow and ice. After the melting agent contacts the frost layer, it will react with it to accelerate the melting of the frost layer.

[0061] The reciprocating scraping part 3 is adapted to be closely attached to the surface of the evaporator 2 and to scrape back and forth to gradually scrape off the frost layer;

[0062] The two-way air attack part 5 is suitable for cleaning and blowing the surface of the evaporator 2 after the reciprocating scraper part 3 has dropped the frost layer, so as to remove the residual substances on the surface of the evaporator 2. The evaporator air defrosting system of the quick freezing device can firstly blow the frosted surface of the evaporator 2 with a strong airflow under the cooperation of the reciprocating scraper part 3 and the two-way air attack part 5, so as to treat the frost layer on the evaporator 2 for the first time by means of high-speed flowing air, remove the relatively loose frost on the surface, realize defrosting and lay a good foundation for the subsequent defrosting process. With the cooperation of the reciprocating scraping part 3 and the melting promotion mechanism 4, the melting agent can be evenly sprayed onto the frosted surface of the evaporator 2 with the support of a strong airflow, so that the melting agent is evenly attached to the frost layer, and the frost layer is quickly melted to a semi-melted state or completely melted, thereby effectively reducing the bonding strength between the frost layer and the surface of the evaporator 2, greatly reducing the difficulty of defrosting, and ensuring that the frost layer can be completely removed in the subsequent defrosting process. The reciprocating scraping part 3 can comprehensively clean the surface of the evaporator 2 by reciprocating scraping action, thereby removing the frost layer that has been removed by the melting promotion mechanism. 4, and the frost layer treated by the reciprocating cleaning scraper 3 is completely scraped off, completing the last treatment of the frost layer, thereby ensuring that the frost layer is completely removed and the surface of the evaporator 2 is restored to be clean. The two-way air attack part 5 can blow the surface of the evaporator 2 immediately after the reciprocating cleaning scraper 3 when the reciprocating cleaning scraper 3 continues to scrape the frost layer, so that the residual liquid mixed with the melting agent is blown off the surface of the evaporator 2 or blown dry, thereby preventing the liquid mixed with the melting agent from being attached to the evaporator 2 for a long time and causing serious corrosion to it, and avoiding the service life of the evaporator 2 from being greatly affected. The evaporator air defrosting system of the quick freezing device can completely remove the frost layer on the evaporator 2 in a multi-step, partitioned and flexible cleaning manner, and can perform timely, effective, uniform and thorough defrosting to prevent the evaporator 2 from being affected by various negative effects, while not hindering the normal operation of the evaporator 2 and the quick freezing device body 1, without requiring long-term interruption of refrigeration, and without using high temperature to melt the frost layer. There will be no large-scale cold and heat exchange during the defrosting process, and the internal temperature of the quick freezing device body 1 will not be affected, effectively preventing the quality of the product being frozen from being affected.

[0063] Optionally, the reciprocating scraping part 3 includes a long groove block 31 installed on the top of the quick-freezing device body 1, a rack 32 fixedly installed in the long groove block 31, two grooves 33 respectively provided on the two inner side walls of the long groove block 31, and the rack 32 and the two grooves 33 are arranged along the long side direction of the long groove block 31, a plate 34 slidably arranged in the two grooves 33, a first motor 35 installed on the side of the plate 34, a gear 36 installed on the output shaft of the first motor 35, and the gear 36 is meshed with the rack 32, a main arm 37 fixed on the plate 34, a column 38 arranged at the tail of the main arm 37, a bottom plate 39 connected to the bottom surface of the column 38, a protrusion 391 slidably installed on the side of the bottom plate 39, a side panel 392 connected to the protrusion 391, a scraper 393 connected to one end of the side panel 392, and an electric push rod 394 installed on the top of the bottom plate 39;

[0064] The output end of the electric push rod 394 is connected to the protrusion 391;

[0065] The scraper 393 faces the surface of the evaporator 2;

[0066] The two grooves 33 are located above the rack 32, and the first motor 35 is driven to drive the gear 36 to mesh with the rack 32 for transmission, thereby pushing the flat plate 34 to move back and forth at a uniform speed along the two grooves 33 in the long groove block 31, thereby ensuring the normal use of the reciprocating scraping part 3, the melting promotion mechanism 4 and the two-way air attack part 5, and removing the frost layer on the evaporator 2; after the two-way air attack part 5 completes the cleaning of the surface of the frost layer and the melting promotion mechanism 4 completes the sufficient melting of the remaining frost layer, the electric push rod 394 is driven to push the protrusion 391 forward on the bottom plate 39 until the scraper 393 is tightly attached to the surface of the evaporator 2, and then the first motor 35 is driven to control the scraper 393 to scrape the frost layer to remove the frost layer; the scraper 393 can also cooperate with the two-way air attack part 5 to first clean the surface of the frost layer.

[0067] Optionally, the main body arm 37 is connected to a horizontal mounting platform 371;

[0068] The melting promotion mechanism 4 includes a rectangular channel 41 installed on the side of the side panel 392, and the open end of the rectangular channel 41 faces the surface of the evaporator 2, a first positioning frame 42 installed on the top of the rectangular channel 41, a storage bin 43 installed in the first positioning frame 42, and the discharge end of the storage bin 43 is connected to the rectangular channel 41, and one end is connected to the first blowing port 44 on the side of the storage bin 43, a first blower 45 is arranged on the horizontal mounting platform 371, and a first air duct 46 with one end connected to the output end of the first blower 45 and the other end connected to the other end of the first blowing port 44;

[0069] The first blowing port 44 is located at the rear of the storage bin 43 and the blowing direction of the first blowing port 44 is perpendicular to the discharge direction of the storage bin 43. After the surface of the frost layer is cleared, the electric push rod 394 is driven to push the rectangular channel 41 forward to make it close to the frosted surface of the evaporator 2, and the first blower 45 is started to start blowing, so that the first blowing port 44 starts to discharge a strong airflow outward, and then the melting agent falling from the discharge end of the storage bin 43 is blown toward the frost layer with a strong airflow, so that the melting agent adheres to the frost layer, prompting the frost layer to quickly melt into a semi-melted state or completely melt, effectively reducing the bonding strength between the frost layer and the surface of the evaporator 2, reducing the difficulty of defrosting, and ensuring that the subsequent scraper 393 can scrape off all the frost layer, thereby achieving comprehensive and thorough defrosting.

[0070] Optionally, the bidirectional air attack part 5 includes an extension platform 51 installed at the rear of the base plate 39, a middle channel 52 arranged on the extension platform 51, a first right-angle plate 53 integrally connected to the side of the base plate 39, a second blowing port 54 installed at the end of the first right-angle plate 53, a first air delivery channel 55 connected between the middle channel 52 and the second blowing port 54, a second blower 56 arranged on the horizontal mounting platform 371 and parallel to the first blower 45, and a second air duct 57 having one end connected to the output end of the second blower 56;

[0071] The other end of the second air duct 57 extends into the middle channel 52 and is aligned with the first air delivery channel 55;

[0072] The second blowing port 54 is obliquely facing the surface of the evaporator 2, ensuring that the airflow acts obliquely on the frost layer to blow away the frost on the surface layer to prevent the frost on the surface layer from returning to the frost layer; since the frost on the bottom layer is in contact with the surface of the evaporator 2, it has a high bonding strength and strong adhesion to the surface of the evaporator 2, and the frost on the surface layer adheres to the frost particles, which are relatively large, and under the action of the external temperature, the frost melts from the outside to the inside, so the surface layer of the frost layer is easy to fall off; the second blower 56 is started to start blowing, and the wind is sent to the first air delivery channel 55 through the second air duct 57 and the middle channel 52 in turn, and finally a strong airflow is discharged through the second blowing port 54, And under the continuous drive of the first motor 35, the frost layer along the way is blown violently, so as to blow away the frost on the surface layer and complete the preliminary defrosting work. After the surface layer of the frost layer is completely blown away, the melting agent is sprayed on the remaining bottom frost, and the melting agent is fully utilized to carry out targeted treatment of the bottom frost with high bonding strength and strong adhesion, so as to lay a good foundation for the subsequent defrosting process, so as to prevent the direct spraying of the melting agent when the frost layer is too thick, resulting in the failure to melt the bottom frost smoothly, and ensure the orderly effectiveness of defrosting, so as to completely remove the frost layer. When clearing the surface layer of the frost layer, always keep the airflow direction in front of the movement direction to prevent the frost particles from being blown back onto the frost layer.

[0073] Optionally, the bidirectional air attack part 5 further includes a second right-angle plate 58 integrally connected to the other side of the bottom plate 39, a third air outlet 59 installed at the end of the second right-angle plate 58, connecting a second air delivery channel 591 between the middle channel 52 and the third air outlet 59, a hard ring 592 installed on the tail of one end of the second air duct 57 extending into the middle channel 52, and a second motor 593 arranged on the extended platform 51, and the output shaft of the second motor 593 extends into the middle channel 52 and is connected to the hard ring 592;

[0074] The second air duct 57 is centrally located between the first air delivery channel 55 and the second air delivery channel 591;

[0075] The second air outlet 54 and the third air outlet 59 are respectively located on both sides of the scraper 393 and are in an outward-facing "X" shape;

[0076] The second air outlet 54 and the third air outlet 59 are close to the surface of the evaporator 2, and the second motor 593 is started to rotate its output shaft, so that the end of the second air duct 57 extending into the middle channel 52 is twisted through the hard ring 592, and the direction of the end of the second air duct 57 is changed until the second air duct 57 is aligned with the second air delivery channel 591 on the other side, and then the wind generated by the second blower 56 is guided to the second air delivery channel 591, and finally blown out from the third air outlet 59; when the first motor 35 is driven forward and reversely to drive the flat plate 34 to reciprocate to remove the surface frost and scrape the frost layer, the second motor 593 is driven synchronously, and when the flat plate 34 moves forward, the second air duct 57 is aligned with the first air delivery channel 55, and when the flat plate 34 moves backward, the second air duct 57 is aligned with the second The air delivery channel 591 can quickly adjust the wind direction to match the working direction at all times to prevent the need to reset the flat plate 34 each time before proceeding to the next stage of work, thereby avoiding a large amount of time wasted due to the return process and ensuring efficient defrosting efficiency; when the scraper 393 scrapes off the frost layer, the blowing direction of the airflow is always maintained behind the scraper 393, so that after the scraper 393 scrapes off the frost layer, the corresponding second blowing port 54 or the third blowing port 59 follows closely, blowing the surface of the evaporator 2 with a strong airflow, and then blowing the remaining liquid mixed with the melt away from the surface of the evaporator 2 or drying it, effectively preventing the liquid mixed with the melt from adhering to the evaporator 2 for a long time and causing serious corrosion to it, avoiding a significant impact on the service life of the evaporator 2 and further ensuring the thoroughness of defrosting.

[0077] Optionally, the column 38 is slidably inserted on the main arm 37;

[0078] The main arm 37 is provided with a second positioning frame 6, and the second positioning frame 6 is provided with a cylinder 7;

[0079] The output end of the cylinder 7 is connected to the top of the column 38, dividing the surface of the evaporator 2 into a plurality of strip-shaped areas. After completing the surface frost cleaning, bottom frost scraping and melt spraying of each strip, the cylinder 7 is immediately driven to push the main arm 37 down a corresponding distance to process the frost layer of the next area, ensuring that the frost layer is completely covered to ensure the uniformity of defrosting; at the same time, it is ensured that the melt has sufficient reaction time on the frost layer to melt the frost layer, that is, after completing the melt spraying of the last area, the melt sprayed on the first area has fully melted the frost layer, ensuring that the scraper 393 can scrape off the frost layer completely to achieve comprehensive and thorough defrosting.

[0080] Optionally, the melting promotion mechanism 4 further includes a hand-tightened bolt 47 screwed on the top surface of the storage bin 43;

[0081] The hand-tightening bolt 47 is inserted into the discharge end of the storage bin 43;

[0082] The end of the hand-tightening bolt 47 is in a pointed cone shape, and the pointed cone part slightly extends into the rectangular channel 41. Under normal circumstances, the hand-tightening bolt 47 is used to seal the discharge end of the storage bin 43 to prevent the internal melt from falling when it is not needed. When it is necessary to spray the melt onto the frost layer, the first blower 45 is started, and after the first air outlet 44 starts to discharge a strong airflow outward, the hand-tightening bolt 47 is turned upward to expose the discharge end of the storage bin 43, so that the melt inside the storage bin 43 begins to fall downward along the discharge end and is blown by the airflow to prevent the waste of the melt. At the same time, when the melt is blocked at the discharge end of the storage bin 43, the hand-tightening bolt 47 can be turned downward again, and the pointed cone part at its end can be used to clear the blocked part to prevent the melt from being sprayed onto the frost layer normally.

[0083] Optionally, the ablation promoting mechanism 4 further comprises a collecting tube 48 installed on the bottom of the rectangular channel 41;

[0084] The collecting tube 48 is connected to the rectangular channel 41 and is located directly below the discharge end of the storage bin 43, ensuring that when the melt is not blown by the airflow and falls on the rectangular channel 41 due to erroneous operations such as prematurely unscrewing the hand bolt 47 or prematurely shutting down the first blower 45, the collecting tube 48 can catch the melt, ensuring that the melt in the collecting tube 48 can be poured back into the storage bin 43 for reuse after being removed, thereby avoiding waste of the melt.

[0085] Optionally, the first air duct 46 and the second air duct 57 are corrugated tubes, and the first air duct 46 and the second air duct 57 are not in a straightened state under normal conditions, ensuring that there is enough stretching to adapt to the step-by-step downward movement of the column 38, ensuring stable air delivery capacity, and ensuring excellent softness and elasticity to ensure that the second motor 593 can smoothly twist the second air duct 57 back and forth;

[0086] The end cross-sections of the second air outlet 54 and the third air outlet 59 are decreasing, so that the airflow becomes stronger when passing through the second air outlet 54 and the third air outlet 59, thereby ensuring the cleaning effect of the surface frost and the liquid remaining on the surface of the evaporator 2.

[0087] Optionally, an evaporator air defrosting system for a quick freezing device further comprises a collecting tank member 8 mounted on the outer side wall of the quick freezing device body 1;

[0088] The collecting trough 8 is located below the evaporator 2 and both ends of the collecting trough 8 protrude from the evaporator 2. The collecting trough 8 is used to collect frost particles, liquid, etc. during the defrosting process to prevent them from freely spilling and polluting the on-site environment and the quick-freezing device body 1.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An evaporator air defrosting system for a quick freezing device, characterized in that: include: A quick freezing device body (1) and an evaporator (2) on the quick freezing device body (1), a reciprocating scraping portion (3) mounted on the quick freezing device body (1), a melting promotion mechanism (4) arranged on the reciprocating scraping portion (3), and a bidirectional air attack portion (5) arranged on the reciprocating scraping portion (3) and partially located on both sides of the reciprocating scraping portion (3), wherein: The reciprocating scraping part (3) is driven to carry the bidirectional air attack part (5) to evenly spray the frost layer on the evaporator (2) to remove the surface layer of the frost layer; The reciprocating scraping part (3) can be driven to carry the melting promotion mechanism (4) to uniformly spray fine granular melting agent onto the frost layer on the evaporator (2), so that the melting agent adheres to the frost layer; The reciprocating scraping portion (3) is suitable for closely contacting the surface of the evaporator (2) and scraping back and forth to gradually scrape off the frost layer; The bidirectional air attack portion (5) is suitable for cleaning and blowing the surface of the evaporator (2) after the frost layer is removed by the reciprocating scraping portion (3), so as to remove residual substances on the surface of the evaporator (2).

2. The evaporator air defrosting system for a quick freezing device according to claim 1, characterized in that: The reciprocating scraping part (3) comprises a long groove block (31) mounted on the top of the quick freezing device body (1), a rack (32) fixedly mounted in the long groove block (31), two grooves (33) respectively arranged on the two inner side walls of the long groove block (31), and the rack (32) and the two grooves (33) are arranged along the long side direction of the long groove block (31), a plate (34) slidably arranged in the two grooves (33), a first motor (35) mounted on the side of the plate (34), and an output terminal (35) mounted on the first motor (35). A gear (36) on the shaft, wherein the gear (36) meshes with the rack (32), a main arm (37) fixed on the flat plate (34), a column (38) arranged at the tail of the main arm (37), a base plate (39) connected to the bottom surface of the column (38), a protrusion (391) slidably mounted on the side of the base plate (39), a side panel (392) connected to the protrusion (391), a scraper (393) connected to one end of the side panel (392), and an electric push rod (394) mounted on the top of the base plate (39); The output end of the electric push rod (394) is connected to the protrusion (391); The scraper (393) faces the surface of the evaporator (2); The two grooves (33) are located above the rack (32).

3. The evaporator air defrosting system for a quick freezing device according to claim 2, characterized in that , The main body arm (37) is connected to a horizontal mounting platform (371); The melting promotion mechanism (4) comprises a rectangular channel (41) installed on the side of the side panel (392), and the open end of the rectangular channel (41) faces the surface of the evaporator (2), a first positioning frame (42) installed on the top of the rectangular channel (41), a storage bin (43) installed in the first positioning frame (42), and the discharge end of the storage bin (43) is connected to the rectangular channel (41), and one end is connected to the first blowing port (44) on the side of the storage bin (43), a first blower (45) arranged on the horizontal mounting platform (371), and a first air duct (46) having one end connected to the output end of the first blower (45) and the other end connected to the other end of the first blowing port (44); The first air blowing port (44) is located at the rear of the material storage bin (43), and the blowing direction of the first air blowing port (44) is perpendicular to the material discharging direction of the material storage bin (43).

4. The evaporator air defrosting system for a quick freezing device according to claim 3, characterized in that , The bidirectional air attack part (5) comprises an extension platform (51) installed at the rear of the base plate (39), a middle channel (52) arranged on the extension platform (51), a first right-angle plate (53) integrally connected to the side of the base plate (39), a second air outlet (54) installed at the end of the first right-angle plate (53), a first air delivery channel (55) connected between the middle channel (52) and the second air outlet (54), a second blower (56) arranged on the horizontal mounting platform (371) and arranged side by side with the first blower (45), and a second air duct (57) one end of which is connected to the output end of the second blower (56); The other end of the second air duct (57) extends into the middle channel (52) and is aligned with the first air delivery channel (55); The second air blowing port (54) faces obliquely towards the surface of the evaporator (2).

5. The evaporator air defrosting system for a quick freezing device according to claim 4, characterized in that , The bidirectional air attack part (5) also includes a second right-angle plate (58) integrally connected to the other side of the bottom plate (39), a third air outlet (59) installed at the end of the second right-angle plate (58), connected to a second air delivery channel (591) between the middle channel (52) and the third air outlet (59), a hard ring (592) installed on the tail of one end of the second air duct (57) extending into the middle channel (52), and a second motor (593) arranged on the extended platform (51), and the output shaft of the second motor (593) extends into the middle channel (52) and is connected to the hard ring (592); The second air duct (57) is centrally located between the first air delivery channel (55) and the second air delivery channel (591); The second air blowing port (54) and the third air blowing port (59) are respectively located on two sides of the scraper (393) and are in an outward-facing "X" shape; The second air blowing port (54) and the third air blowing port (59) are close to the surface of the evaporator (2).

6. The evaporator air defrosting system for a quick freezing device according to claim 5, characterized in that , The upright post (38) is slidably inserted on the main body arm (37); A second positioning frame (6) is installed on the main body arm (37), and a cylinder (7) is installed on the second positioning frame (6); The output end of the cylinder (7) is connected to the top end of the column (38).

7. The evaporator air defrosting system for a quick freezing device according to claim 6, characterized in that , The fusion promoting mechanism (4) further comprises a hand-tightened bolt (47) screwedly mounted on the top surface of the storage bin (43); The hand-tightening bolt (47) is inserted snugly into the discharge end of the storage bin (43); The tip of the hand-tightening bolt (47) is in a pointed cone shape, and the pointed cone portion slightly extends into the rectangular channel (41).

8. The evaporator air defrosting system for a quick freezing device according to claim 7, characterized in that , The ablation promoting mechanism (4) further comprises a collecting cylinder (48) installed on the bottom of the rectangular channel (41); The collecting cylinder (48) is connected to the rectangular channel (41) and is located directly below the discharge end of the storage bin (43).

9. The evaporator air defrosting system for a quick freezing device according to claim 8, characterized in that , The first air duct (46) and the second air duct (57) are corrugated tubes; The end cross-sections of the second blowing port (54) and the third blowing port (59) are in a decreasing shape.

10. The evaporator air defrosting system for a quick freezing device according to claim 9, characterized in that , An evaporator air defrosting system for a quick freezing device further comprises a collecting trough (8) mounted on the outer side wall of the quick freezing device body (1); The collecting trough (8) is located below the evaporator (2) and both ends of the collecting trough (8) protrude from the evaporator (2).

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