An air source heat pump unit with self-maintenance function

Abstract

The invention discloses an air source heat pump unit with a self-maintenance function, which relates to the technical field of air source heat pumps, and comprises a casing, a fan is fixedly connected to the top of the casing, a fin evaporator is fixedly connected to the inner surface of the top of the casing, and an external pipe is fixedly connected to the bottom of the casing. By setting a self-maintenance reciprocating mechanism and utilizing the cooperation of a reciprocating screw and a reciprocating thread groove, since the number of turns of the reciprocating thread groove is set to one turn, and the density of the reciprocating grooves of the reciprocating screw is much greater than that of the reciprocating thread grooves, under the condition of the same number of rotations, the longitudinal reciprocating speed of the nylon brush is much faster than the lateral movement speed. On the one hand, rapid brushing can improve the defrosting and decontamination capabilities of the nylon brush, which can effectively reduce maintenance costs and improve maintenance efficiency. On the other hand, the speed difference between the lateral movement and the longitudinal movement of the nylon brush makes the surface coverage of the fin evaporator more complete, avoids the situation of missed brushing, and achieves a high-efficiency self-maintenance effect on the fin evaporator.

Description

Technical Field

[0001] The present invention relates to the technical field of air source heat pumps, and in particular to an air source heat pump unit with a self-maintenance function. Background Art

[0002] The air source heat pump unit is a device that uses the heat in the ambient air for cooling or heating, meeting the user's needs for domestic hot water, floor heating or air conditioning. During operation, the fins will continuously exchange heat with the air in the surrounding environment. If there are impurities, particles, dust, etc. in the air, these substances may be deposited on the surface of the fins. The deposits will gradually accumulate, causing the internal channels of the fins to narrow or completely block, thereby affecting the heat exchange efficiency;

[0003] In the prior art, when the ambient humidity or temperature is high, water vapor is easily condensed on the surface of the low fins. As time goes by, the water vapor will gradually form ice crystals, causing frost on the fins. At this time, the equipment usually turns on the defrost function to defrost. However, if the fins are not properly maintained, the deposits will accumulate, which can easily cause the fins to be dirty and blocked, resulting in ineffective defrosting, wasting the energy consumption of the equipment. At the same time, the condensed frost also increases the difficulty of dealing with the dirty blockage.

[0004] In addition, when the fins are dirty, clogged, and frosted, the dust or frost brushed off will easily adhere to the fins again. In order to adapt to the range of brushing, current vacuum cleaners usually require a long hose for connection. However, after multiple back and forth bends, the elasticity of the hose will drop significantly, and it is very easy to become brittle and crack, causing the adsorbed impurities to leak out, affecting collection and not conducive to long-term use.

[0005] In view of this, the present invention proposes an air source heat pump unit with a self-maintenance function to make up for and improve the deficiencies of the prior art. Summary of the invention

[0006] To solve the above technical problems, the present invention provides an air source heat pump unit with self-maintenance function which can improve maintenance efficiency, save energy consumption and avoid impurity leakage, so as to solve the corresponding technical problems raised in the above background technology.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: an air source heat pump unit with a self-maintenance function, comprising a casing, a fan is fixedly connected to the top of the casing, a fin evaporator is fixedly connected to the inner surface of the top of the casing, and an external pipe is fixedly connected to the bottom of the casing, and also includes:

[0008] Self-maintaining reciprocating mechanism, used to brush off frost and dirt on the surface of the fin evaporator horizontally and vertically and collect them simultaneously;

[0009] Anti-leakage collection mechanism for closed collection and effective discharge.

[0010] Preferably, the self-maintenance reciprocating mechanism includes a double-headed motor fixedly connected to the top edge of the casing, and the output ends on both sides of the double-headed motor are fixedly connected to rotating rods, and the two rotating rods are fixedly connected to the main bevel gear on the side away from the double-headed motor, and the outer walls of the two main bevel gears are meshingly connected to the secondary bevel gears, and the two secondary bevel gears are fixedly connected to the reciprocating screws on the side away from the main bevel gears, and the outer walls of the two reciprocating screws are rotatably connected to the slide plates, one side of the two slide plates is fixedly connected to the inner wall of the casing, and the other side of the slide plates is fixedly connected to the top of the fin evaporator.

[0011] Preferably, the self-maintenance reciprocating mechanism also includes a first slider threadedly connected to the outer wall of the reciprocating screw, the outer walls of the two first sliders are slidably connected to the inner wall of the slide plate, the bottom edge of the first slider is fixedly connected to a dust collector head, the bottom inner wall of the first slider is rotatably connected to a flat gear, the bottom of the slide plate is fixedly connected to a rack, the two pairs of flat gears and the rack are meshed with each other, the two flat gears are meshed with teeth on one side away from the rack, the two teeth are fixedly connected to a switch button on one side away from the flat gear, and the two switch buttons are fixedly connected to the inner wall of the first slider on one side away from the teeth.

[0012] Preferably, the self-maintenance reciprocating mechanism also includes a moving rod fixedly connected to the center of the flat gear, the outer walls of the two moving rods are provided with reciprocating thread grooves, the outer walls of the moving rods are slidably connected to a second slider, the outer walls of the two second sliders are slidably connected to the outer wall of the dust collector head, the inner walls of the second sliders are fixedly connected to protrusions, the outer walls of the two protrusions are slidably connected to the reciprocating thread grooves, the side of the second slider away from the dust collector head is fixedly connected to a nylon brush, the side of the two nylon brushes away from the second slider is abutted against the outer wall of the fin evaporator, the bottom of the dust collector head and the moving rod are slidably connected to a mounting plate, and the outer wall of the mounting plate is fixedly connected to the inner wall of the casing.

[0013] Preferably, the leakage-proof collection mechanism includes a hard dust suction tube fixedly connected to the bottom of the dust suction head, the bottoms of the two hard dust suction tubes are fixedly connected to the vacuum cleaner, the bottoms of the two vacuum cleaners are slidably connected to dust collecting boxes, the outer walls of the two dust collecting boxes are fixedly connected to the inner walls of the casing, the tops of the dust collecting box and the mounting plate are provided with holes, the hard dust suction tubes are slidably connected in the holes, the middle part of the casing is fixedly connected to a discharge port, and the discharge port is connected to the dust collecting box.

[0014] Preferably, the leakage-proof collection mechanism also includes an annular belt fixedly connected to the bottom of the vacuum cleaner, one side of the two annular belts are slidably connected to the top inner surface of the dust box, and the other side of the annular belts are slidably connected to the bottom outer surface of the dust box, and through grooves are correspondingly opened on both sides of the middle part of the dust box, and the inner walls of the annular belts are fixedly connected with scrapers, and the outer walls of the two scrapers are abutted against the inner wall of the dust box.

[0015] Preferably, the scraper is configured in an inverted U shape.

[0016] Preferably, two sides of the dust collecting box are arranged in an arc shape.

[0017] Preferably, the vacuum head, the movable rod and the nylon brush are all arranged at an inclination angle and are consistent with the inclination angle of the fin evaporator.

[0018] Preferably, the number of turns of the reciprocating thread groove is set to one turn.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the setting of the self-maintenance reciprocating mechanism, the cooperation of the reciprocating screw and the reciprocating thread groove is used to make the nylon brush reciprocate horizontally and vertically on the surface of the fin evaporator. Since the number of turns of the reciprocating thread groove is set to one circle, and the density of the reciprocating groove of the reciprocating screw is much greater than that of the reciprocating thread groove, the longitudinal reciprocating speed of the nylon brush is much faster than the lateral movement speed under the same number of turns. On the one hand, fast brushing can improve the defrosting and decontamination ability of the nylon brush, which can effectively reduce maintenance costs and improve maintenance efficiency. On the other hand, the speed difference between the lateral movement and the longitudinal movement of the nylon brush makes the surface coverage of the fin evaporator more complete, avoiding the occurrence of missed brushing, and achieving efficient self-maintenance effect on the fin evaporator.

[0021] 2. When the flat gear rotates, the nylon brush is in a reciprocating brushing state. By installing teeth on the switch button, the switch button can be pressed continuously to keep the vacuum cleaner in the vacuuming state. When the nylon brush stops, the flat gear no longer rotates, the teeth are not squeezed, and the vacuum cleaner is turned off. In this way, the vacuum cleaner will only start when the nylon brush is running, which can avoid wasting energy consumption of the equipment and save energy consumption;

[0022] 3. Through the setting of the anti-leakage collection mechanism, a hard vacuum tube is used to replace the traditional long hose, which does not need to be bent and has a long service life. With the setting of the ring belt, one side of the ring belt slides on the top inner surface of the dust box, and the other side slides on the bottom outer surface of the dust box, which can block the hole groove of the dust box to keep it in a relatively sealed state, avoid impurity leakage, and enhance the collection effect;

[0023] Secondly, while the endless belt is moving, the scraper can be driven to scrape back and forth on the inner wall of the dust box to knock off impurities that may be adhered, and finally discharge them from the discharge port along the curvature of the dust box. The shape of the scraper fits the inner wall of the dust box, which can effectively assist in discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0025] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0026] Figure 3 A partial three-dimensional cross-sectional view of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the connection of the chute plate shown in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the nylon brush connection shown in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the flat tooth connection shown in the present invention;

[0030] Figure 7 The present invention shows Figure 6 The enlarged structural diagram at A in the middle;

[0031] Figure 8 It is a schematic diagram of the structure of the bump connection shown in the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the dust box connection shown in the present invention;

[0033] Fig.10 It is a structural schematic diagram of the scraper connection shown in the present invention;

[0034] Fig.11 It is a schematic structural diagram of the connection of the ring belt shown in the present invention.

[0035] The numbers in the figure are:

[0036] 1. Casing; 2. External pipe; 3. Fan; 4. Finned evaporator;

[0037] 5. Self-maintaining reciprocating mechanism; 51. Double-headed motor; 52. Rotating rod; 53. Main bevel gear; 54. Sub bevel gear; 55. Cleaning head; 56. First slider; 57. Second slider; 58. Slide plate; 59. Reciprocating screw rod; 510. Rack; 511. Nylon brush; 512. Moving rod; 513. Reciprocating thread groove; 514. Flat gear; 515. Switch button; 516. Tooth; 517. Bump; 518. Mounting plate;

[0038] 6. Anti-leakage collection mechanism; 61. Discharge port; 62. Hard suction pipe; 63. Dust collection box; 64. Belt; 65. Vacuum cleaner; 66. Scraper; 67. Hole groove. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiments of the present invention

[0041] Please refer to Figures 1 to 11 As shown, an air source heat pump unit with a self-maintenance function includes a casing 1, a fan 3 is fixedly connected to the top of the casing 1, a fin evaporator 4 is fixedly connected to the inner surface of the top of the casing 1, and an external pipe 2 is fixedly connected to the bottom of the casing 1, and also includes:

[0042] A self-maintaining reciprocating mechanism 5 is used to reciprocate horizontally and vertically to brush off frost and dirt on the surface of the fin evaporator 4 and collect them simultaneously;

[0043] Anti-leakage collection mechanism 6, for closed collection and effective discharge;

[0044] The self-maintenance reciprocating mechanism 5 includes a double-headed motor 51 fixedly connected to the top edge of the casing 1, and the output ends on both sides of the double-headed motor 51 are fixedly connected to a rotating rod 52, and the two rotating rods 52 are fixedly connected to the main bevel gear 53 on the side away from the double-headed motor 51, and the outer walls of the two main bevel gears 53 are meshed and connected with the auxiliary bevel gears 54, and the two auxiliary bevel gears 54 are fixedly connected to the side away from the main bevel gear 53. The reciprocating screw rods 59 are rotatably connected to the outer walls of the two reciprocating screw rods 59, and one side of the two slide plates 58 is fixedly connected to the inner wall of the casing 1, and the other side of the slide plates 58 is fixedly connected to the top of the fin evaporator 4;

[0045] The self-maintenance reciprocating mechanism 5 also includes a first slider 56 threadedly connected to the outer wall of the reciprocating screw 59, the outer walls of the two first sliders 56 are slidably connected to the inner wall of the slide plate 58, the bottom edge of the first slider 56 is fixedly connected to the dust collector 55, the bottom inner wall of the first slider 56 is rotatably connected to the flat gear 514, the bottom of the slide plate 58 is fixedly connected to the rack 510, the two pairs of flat gears 514 and the rack 510 are meshed with each other, the two flat gears 514 are meshed with teeth 516 on one side away from the rack 510, the two teeth 516 are fixedly connected to the switch button 515 on one side away from the flat gear 514, and the two switch buttons 515 are fixedly connected to the inner wall of the first slider 56 on one side away from the teeth 516;

[0046] The self-maintenance reciprocating mechanism 5 also includes a moving rod 512 fixedly connected to the center of the flat gear 514, the outer walls of the two moving rods 512 are provided with a reciprocating thread groove 513, the outer walls of the moving rods 512 are slidably connected to the second slider 57, the outer walls of the two second sliders 57 are slidably connected to the outer wall of the dust collector 55, the inner wall of the second slider 57 is fixedly connected to a protrusion 517, the outer walls of the two protrusions 517 are slidably connected in the reciprocating thread groove 513, the side of the second slider 57 away from the dust collector 55 is fixedly connected to a nylon brush 511, the side of the two nylon brushes 511 away from the second slider 57 is abutted against the outer wall of the fin evaporator 4, the dust collector 55 and the bottom of the moving rod 512 are slidably connected to a mounting plate 518, and the outer wall of the mounting plate 518 is fixedly connected to the inner wall of the casing 1;

[0047] The dust collecting head 55, the moving rod 512 and the nylon brush 511 are all arranged in an inclined manner and are consistent with the inclination angle of the fin evaporator 4;

[0048] The number of turns of the reciprocating thread groove 513 is set to one turn;

[0049] The density of the reciprocating grooves on the reciprocating screw rod 59 is much greater than that of the reciprocating thread grooves 513, so as to form a speed difference between the lateral movement and the longitudinal movement.

[0050] The effects achieved by this embodiment are as follows: In the prior art, if the fins are not properly maintained and deposits accumulate, the fins may easily become dirty and clogged, resulting in ineffective defrosting and wasting the energy consumption of the equipment. At the same time, the condensed frost also increases the difficulty of handling the dirty and clogged objects. Compared with the prior art, through the implementation of this embodiment, the self-maintaining reciprocating mechanism 5 can be set to one circle because the number of turns of the reciprocating thread groove 513 is set to one circle, and the reciprocating groove of the reciprocating screw 59 is much denser than the reciprocating thread groove 513. Therefore, under the same number of rotations, the longitudinal reciprocating speed of the nylon brush 511 is much faster than the lateral moving speed, so that the defrosting and decontamination ability of the nylon brush 511 is improved, and the surface coverage of the fin evaporator 4 is more complete to avoid missed brushing.

[0051] Further examples:

[0052] Please refer to Figure 3 , Figures 9 to 11 As shown, the anti-leakage collection mechanism 6 includes a hard dust suction pipe 62 fixedly connected to the bottom of the dust suction head 55, the bottoms of the two hard dust suction pipes 62 are fixedly connected to the dust collector 65, the bottoms of the two dust collectors 65 are slidably connected to the dust collection box 63, the outer walls of the two dust collection boxes 63 are fixedly connected to the inner wall of the casing 1, the dust collection box 63 and the top of the mounting plate 518 are provided with a hole groove 67, the hard dust suction pipes 62 are slidably connected in the hole groove 67, the middle part of the casing 1 is fixedly connected to a discharge port 61, and the discharge port 61 is connected to the dust collection box 63;

[0053] The anti-leakage collection mechanism 6 also includes an annular belt 64 fixedly connected to the bottom of the dust collector 65, one side of the two annular belts 64 are slidably connected to the top inner surface of the dust box 63, and the other side of the annular belts 64 are slidably connected to the bottom outer surface of the dust box 63. Through grooves are correspondingly opened on both sides of the middle of the dust box 63. The inner wall of the annular belt 64 is fixedly connected with a scraper 66, and the outer walls of the two scrapers 66 are in contact with the inner wall of the dust box 63.

[0054] The scraper 66 is arranged in an inverted U shape;

[0055] The two sides of the dust box 63 are arranged in an arc shape;

[0056] The vacuum cleaner 65 and the switch button 515 are electrically connected to each other, and the scraper 66 is shaped to fit the inner wall of the dust box 63 to assist in material discharge.

[0057] The effects achieved by this embodiment are as follows: In the prior art, in order to adapt to the range of brushing, the dust suction device usually needs a long hose for connection. However, after the hose is bent back and forth many times, its elasticity will be greatly reduced, and it is very easy to become brittle and crack, which will leak the adsorbed impurities, affect the collection, and is not conducive to long-term use. Compared with the prior art, through the implementation of this embodiment, the leakage-proof collection mechanism 6 is set, and the hard dust suction tube 62 can be used to replace the traditional long hose. There is no need to bend the pipe, and the service life is long. With the setting of the annular belt 64, one side of the annular belt 64 slides on the top inner surface of the dust box 63, and the other side slides on the bottom outer surface of the dust box 63, which can block the hole groove 67 of the dust box 63 to keep it in a relatively sealed state, avoid impurity leakage, and enhance the collection effect.

[0058] The complete usage steps and working principle of the above embodiment are as follows:

[0059] In the initial state: the double-headed motor 51 is in the off state, the vacuum head 55 is located at the edge of the fin evaporator 4 close to the double-headed motor 51, the nylon brush 511 is located at the top corner of the fin evaporator 4, the vacuum cleaner 65 is in the off state, and the scraper 66 is located at the edge of the scraper 66.

[0060] When in use, when the surface of the fin evaporator 4 is dirty, clogged or frosted, the control system starts the double-headed motor 51 to drive the rotating rod 52 to rotate, and the main bevel gears 53 on both sides are driven to rotate through the rotating rod 52, so that the auxiliary bevel gear 54 and the reciprocating screw 59 rotate synchronously. When the reciprocating screw 59 rotates, the first slider 56 located on the outer wall of the reciprocating screw 59 slides back and forth laterally along the slide plate 58, so that the dust collector 55 and the moving rod 512 follow the first slider 56 to make a horizontal reciprocating motion, and the moving rod 5 When the moving rod 512 moves, the top flat gear 514 can be synchronously driven to move, and the flat gear 514 is meshed with the rack 510, so that when the flat gear 514 moves, it can reversely drive the moving rod 512 to rotate, that is, when the moving rod 512 moves back and forth horizontally, it also rotates. When the moving rod 512 rotates, the internal protrusion 517 can be driven to slide through the reciprocating thread groove 513, so that the second slider 57 continuously moves back and forth longitudinally on the outer wall of the moving rod 512, and finally the second slider 57 fixed on the second slider 57 is rotated. The nylon brush 511 on the slider 57 makes a longitudinal reciprocating movement synchronously. Since the number of turns of the reciprocating thread groove 513 is set to one turn, and the density of the reciprocating grooves of the reciprocating screw 59 is much greater than the reciprocating thread grooves 513, when the nylon brush 511 brushes the surface of the fin evaporator 4, on the one hand, the dense grooves on the reciprocating screw 59 make the reciprocating screw 59 rotate one circle, and correspondingly, the movement distance of the first slider 56 is very small, resulting in a slow lateral movement speed of the nylon brush 511. On the other hand, the reciprocating thread grooves The setting of 513 for only one circle makes the nylon brush 511 move back and forth longitudinally once every time the moving rod 512 rotates one circle. Under the condition of the same number of rotations, the longitudinal reciprocating speed of the nylon brush 511 can be much faster than the lateral moving speed. The fast brushing can improve the defrosting and decontamination ability of the nylon brush 511. The speed difference between the lateral movement and the longitudinal movement of the nylon brush 511 makes the surface of the fin evaporator 4 more completely covered, effectively reducing the situation of missed brushing, and achieving a high-efficiency self-maintenance effect on the fin evaporator 4.

[0061] Furthermore, when the flat gear 514 rotates, the teeth 516 can be squeezed synchronously, so that the switch button 515 is pressed, thereby starting the vacuum cleaner 65 to vacuum, and as long as the flat gear 514 rotates, that is, when the nylon brush 511 is brushing, the vacuum cleaner 65 can be kept in the started state. When the nylon brush 511 stops brushing, the teeth 516 on the outer wall of the switch button 515 are not squeezed, so that the vacuum cleaner 65 is restored to the closed state, which can save energy consumption;

[0062] Please refer to the above working process Figures 1 to 8 .

[0063] Furthermore, when the vacuum cleaner 65 starts to vacuum, the vacuum cleaner 65 accelerates the flow of air on the inner wall of the vacuum head 55 through the external pipe 2, and promptly removes impurities such as frost, dust or dirty blockages brushed by the nylon brush 511, thereby maintaining the cleanliness of the surface of the fin evaporator 4 and ensuring good heat exchange efficiency. After the impurities are discharged from the hard vacuum pipe 62 into the dust box 63, they are easily adhered to the inner wall of the dust box 63. During operation, the horizontal reciprocating movement of the vacuum head 55 can drive the hard vacuum pipe 62 to move synchronously, and the hard vacuum pipe 62 can drive the annular belt 64 continuously slides on the inner and outer walls of the dust box 63. The arc-shaped arrangement on both sides of the dust box 63 can reduce the friction of the annular belt 64, making it easier for the annular belt 64 to reciprocate. On the one hand, the annular belt 64 can block the gap of the hole groove 67 to keep the dust box 63 in a relatively sealed state to prevent impurities from leaking. On the other hand, when the annular belt 64 moves, the scraper 66 can also be driven to reciprocate and scrape the inner wall of the dust box 63 to scrape off the adhered impurities, and finally discharge them from the discharge port 61 along the curvature of the dust box 63. The scraper 66 assists in accelerating the discharge.

[0064] Please refer to the above working process Figure 3 , Figures 9 to 11 .

[0065] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air source heat pump unit with a self-maintenance function, comprising a casing (1), a fan (3) fixedly connected to the top of the casing (1), a finned evaporator (4) fixedly connected to the inner surface of the top of the casing (1), and an external pipe (2) fixedly connected to the bottom of the casing (1), characterized in that: It also includes: a self-maintaining reciprocating mechanism (5) for horizontally and vertically reciprocatingly brushing off frost and dirt on the surface of the fin evaporator (4) and collecting them simultaneously; an anti-leakage collection mechanism (6) for closed collection and effective discharge; The self-maintaining reciprocating mechanism (5) comprises a double-headed motor (51) fixedly connected to the top edge of the casing (1), the output ends on both sides of the double-headed motor (51) are fixedly connected to rotating rods (52), the sides of the two rotating rods (52) away from the double-headed motor (51) are fixedly connected to main bevel gears (53), the outer walls of the two main bevel gears (53) are meshingly connected to auxiliary bevel gears (54), the sides of the two auxiliary bevel gears (54) away from the main bevel gears (53) are fixedly connected to reciprocating screws (59), the outer walls of the two reciprocating screws (59) are rotatably connected to slide plates (58), one side of the two slide plates (58) are fixedly connected to the inner wall of the casing (1), and the other side of the slide plates (58) are fixedly connected to the top of the fin evaporator (4); The self-maintenance reciprocating mechanism (5) further comprises a first slider (56) threadedly connected to the outer wall of the reciprocating screw rod (59); the outer walls of the two first sliders (56) are slidably connected to the inner wall of the slide plate (58); the bottom edge of the first slider (56) is fixedly connected to a dust collector head (55); the inner wall of the bottom of the first slider (56) is rotatably connected to a flat gear (514); the bottom of the slide plate (58) is fixedly connected to a rack (510); the two pairs of flat gears (514) and the rack (510) are meshedly connected; the sides of the two flat gears (514) away from the rack (510) are meshedly connected to teeth (516); the sides of the two teeth (516) away from the flat gear (514) are fixedly connected to switch buttons (515); the sides of the two switch buttons (515) away from the teeth (516) are fixedly connected to the inner wall of the first slider (56); The self-maintenance reciprocating mechanism (5) further comprises a moving rod (512) fixedly connected to the center of the flat gear (514), the outer walls of the two moving rods (512) are provided with a reciprocating thread groove (513), the outer walls of the moving rods (512) are slidably connected to a second slider (57), the outer walls of the two second sliders (57) are slidably connected to the outer wall of the dust collector head (55), the inner walls of the second sliders (57) are fixedly connected to a protrusion (517), and the two protrusions (513) are provided on the outer walls of the moving rods (512). The outer wall of the second slider (517) is slidably connected to the reciprocating thread groove (513), the side of the second slider (57) away from the dust collector head (55) is fixedly connected to a nylon brush (511), the sides of the two nylon brushes (511) away from the second slider (57) are both in contact with the outer wall of the fin evaporator (4), the dust collector head (55) and the bottom of the moving rod (512) are slidably connected to a mounting plate (518), and the outer wall of the mounting plate (518) is fixedly connected to the inner wall of the casing (1).

2. The air source heat pump unit with self-maintenance function according to claim 1, characterized in that: The anti-leakage collection mechanism (6) comprises a hard dust suction pipe (62) fixedly connected to the bottom of the dust suction head (55); the bottoms of the two hard dust suction pipes (62) are fixedly connected to the dust collector (65); the bottoms of the two dust collectors (65) are slidably connected to the dust collection box (63); the outer walls of the two dust collection boxes (63) are fixedly connected to the inner wall of the casing (1); the tops of the dust collection boxes (63) and the mounting plate (518) are provided with a hole groove (67); the hard dust suction pipes (62) are slidably connected in the hole groove (67); the middle part of the casing (1) is fixedly connected to a discharge port (61); the discharge port (61) and the dust collection box (63) are connected to each other.

3. The air source heat pump unit with self-maintenance function according to claim 2, characterized in that: The anti-leakage collection mechanism (6) further comprises an annular belt (64) fixedly connected to the bottom of the dust collector (65); one side of the two annular belts (64) are slidably connected to the top inner surface of the dust collecting box (63); the other side of the annular belts (64) are slidably connected to the bottom outer surface of the dust collecting box (63); through grooves are correspondingly provided on both sides of the middle of the dust collecting box (63); the inner wall of the annular belt (64) is fixedly connected to a scraper (66); the outer walls of the two scrapers (66) are in contact with the inner wall of the dust collecting box (63).

4. The air source heat pump unit with self-maintenance function according to claim 3, characterized in that: The scraper (66) is arranged in an inverted U shape.

5. The air source heat pump unit with self-maintenance function according to claim 4, characterized in that: The two sides of the dust collecting box (63) are arranged in an arc shape.

6. The air source heat pump unit with self-maintenance function according to claim 1, characterized in that: The dust collecting head (55), the moving rod (512) and the nylon brush (511) are all arranged in an inclined manner and are consistent with the inclination angle of the fin evaporator (4).

7. The air source heat pump unit with self-maintenance function according to claim 1, characterized in that: The number of turns of the reciprocating thread groove (513) is set to one turn.

Images