CN114923293A

CN114923293A - Heat pump

Info

Publication number: CN114923293A
Application number: CN202210496001.4A
Authority: CN
Inventors: 钟亚蕾; 张广丰
Original assignee: Individual
Current assignee: Yuxin Sunshine Beijing Energy Technology Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-08-19
Anticipated expiration: 2042-05-09
Also published as: CN114923293B

Abstract

The invention relates to a heat pump, which comprises a shell, a heat pump main body, a protective net, a float switch, a waterproof mechanism and a cleaning mechanism, wherein the shell is provided with a water inlet and a water outlet; an inner cavity is formed in the shell, a first window communicated with the inner cavity is formed in the side face of the shell, the heat pump main body is arranged in the inner cavity, and the heat pump main body comprises a heat pump shell, an evaporator and a heat preservation water tank; the heat pump shell is fixedly arranged in the inner cavity, and a heat pump cavity is arranged in the heat pump shell; a second window communicated with the heat pump cavity is further arranged on one side of the heat pump shell, and the directions of the second window and the first window are consistent; the evaporator is arranged at one side of the heat pump cavity close to the second window, the protective net is arranged on the second window, and the waterproof mechanism is arranged in the inner cavity and used for preventing accumulated water from entering the inner cavity; the float switch is arranged below the first window and used for detecting the height of accumulated water and further controlling the operation of the waterproof mechanism; the cleaning mechanism is arranged between the protective net and the evaporator and used for cleaning dust on the protective net and the evaporator.

Description

Heat pump

Technical Field

The invention belongs to the technical field of heat pumps, and particularly relates to a heat pump.

Background

At present, the household water heater is a gas type household water heater or an electric heating type household water heater; the gas-fired domestic water heater is to convert fossil energy into heat energy to heat water; an electric heating type household water heater is used for heating water by converting electric energy into heat energy; both adopt an energy conversion method to obtain heat energy; these heaters tend to have a low energy efficiency ratio; the heat pump can convert the low-level heat energy which cannot be directly utilized into the high-level heat energy which can be utilized, so that the water is heated; the lowest operation cost of heating water by using the heat pump is comprehensively considered;

the following problems often occur in the prior art when heat pumps are used:

1. because the evaporator of the air source heat pump needs to be arranged at a ventilation position, a large amount of dust can be collected on the evaporator after the evaporator works for a long time, heat exchange between the evaporator and air is blocked, and the heating effect of the air source heat pump is influenced;

2. because the air source heat pump shell is generally provided with a protective net with air holes, a large amount of dust can be accumulated on the protective net due to the outdoor severe environment to block the protective net, so that the air ventilation inside and outside the air source heat pump shell is not smooth, and the heat exchange between an evaporator and air is influenced;

3. because air source heat pump generally all sets up in the open air, when a large amount of ponding appeared, ponding can get into the inside damage that causes electrical components of casing, influences air source heat pump's life.

The present invention is devised to solve the above problems.

Disclosure of Invention

In order to solve the above problems, the present invention provides a heat pump.

In order to achieve the purpose, the invention provides the following technical scheme, which comprises a machine shell, a heat pump main body, a protective net, a float switch, a waterproof mechanism and a cleaning mechanism, wherein the machine shell is provided with a water inlet and a water outlet; an inner cavity is formed in the shell, a first window communicated with the inner cavity is formed in the side face of the shell, and a convex cover is arranged above the first window and used for shielding rainwater; a first boss is arranged on the side wall of the shell; the heat pump main body is arranged in the inner cavity and comprises a heat pump shell, an evaporator and a heat preservation water tank; the heat pump shell is fixedly arranged in the inner cavity, and a heat pump cavity is arranged in the heat pump shell; a second window communicated with the heat pump cavity is further arranged on one side of the heat pump shell, and the orientation of the second window is consistent with that of the first window; the evaporator is arranged at one side of the heat pump cavity close to the second window, and the heat-preservation water tank is arranged at one side of the heat pump shell far away from the second window; the protective net is arranged on the second window, and a vent hole for introducing air is formed in the protective net; the waterproof mechanism is arranged in the inner cavity and used for preventing accumulated water from entering the inner cavity; the float switch is arranged below the first window and used for detecting the height of accumulated water so as to control the operation of the waterproof mechanism; the cleaning mechanism is arranged between the protective net and the evaporator and used for cleaning dust on the protective net and the evaporator.

Preferably, the cleaning mechanism comprises a main body, a sliding mechanism, a driving mechanism, an evaporator cleaning part and a protective net cleaning part; the sliding mechanism comprises a first sliding rod, a second sliding rod and a rack; the first sliding rod and the second sliding rod are sequentially and horizontally fixedly arranged in the heat pump cavity from top to bottom; the rack is horizontally and fixedly arranged in the heat pump cavity and is positioned on the left side of the first sliding rod; the main body is arranged on the first sliding rod and the second sliding rod in a sliding mode, and a sewage draining channel is arranged in the main body; a plurality of third windows communicated with the sewage draining channel are arranged on the left side wall of the main body, and each third window corresponds to the position of the vent hole one by one; a first channel penetrating through the third windows is arranged on the left side wall of the main body along the vertical direction; a second boss and a third boss are sequentially arranged on the right side of the main body from top to bottom, and a second channel is arranged on the second boss along the vertical direction;

the driving mechanism is arranged above the main body, the driving mechanism is matched with the rack to drive the cleaning mechanism to move, and the driving mechanism can also drive the evaporator cleaning part and the protective net cleaning part to perform cleaning work; the evaporator cleaning component is arranged between the second boss and the third boss and used for cleaning the evaporator; the protective net cleaning component is rotatably arranged in the first channel and the third window; the cleaning device is used for cleaning the air holes in the protective net.

Preferably, an air inlet flow channel for connecting the sewage channel and the air inlet A is arranged above the main body; a storage cavity for storing dust is arranged below the main body, the storage cavity is communicated with the sewage discharge channel, and a filter screen for exhausting air is arranged at the bottom of the storage cavity; a third channel is arranged on the second boss along the horizontal direction, and the first sliding rod is arranged in the third channel in a sliding manner; and a fourth channel is arranged on the third boss along the horizontal direction, and the second sliding rod is arranged in the fourth channel in a sliding manner.

Preferably, the protective net cleaning component comprises a first rotating shaft and a plurality of cleaning scrapers; the first rotating shaft is rotatably arranged in the first channel; a plurality of clearance scrapers rotate respectively and set up in a plurality of third windows, a plurality of clearance scraper blade centers pass and fixed connection is on first pivot.

Preferably, the evaporator cleaning part comprises a second rotating shaft, an evaporator cleaning brush and a first spring; one end of the second rotating shaft is fixedly connected with the third boss, and the other end of the second rotating shaft penetrates through the second channel; the evaporator cleaning brush is arranged on the second rotating shaft in a sliding mode; bristles for cleaning the evaporator are arranged on one side of the evaporator cleaning brush, and the other side of the evaporator cleaning brush is in sliding fit with the main body; a first inclined plane is arranged above the evaporator cleaning brush; one end of the first spring abuts against the lower end of the evaporator cleaning brush, and the other end of the first spring abuts against the third boss, so that the evaporator cleaning brush keeps an upward movement trend.

Preferably, the driving mechanism comprises a motor, a first bevel gear body, a second bevel gear, an incomplete straight gear, an incomplete bevel gear and a bevel gear body; the motor is fixedly connected to the second boss, and an output shaft of the motor is fixedly connected with the first bevel gear; the bevel gear body is rotatably arranged in the second channel, and is sleeved on the second rotating shaft and is rotatably connected with the second rotating shaft; one end of the bevel gear body is provided with a third bevel gear, and the other end of the bevel gear body is provided with a second inclined plane; the third bevel gear is meshed with the first bevel gear; the second inclined plane is matched with the first inclined plane and used for pushing the evaporator cleaning brush;

the incomplete straight gear is fixedly connected to an output shaft of the motor and provided with a half straight gear, and a toothed part of the incomplete straight gear is meshed with the rack; the incomplete bevel gear is fixedly connected to an output shaft of the motor, the incomplete bevel gear is provided with half bevel teeth, and the direction of the toothed part of the incomplete bevel gear is consistent with that of the toothed part of the incomplete straight gear; the toothed part of the incomplete bevel gear is meshed with a second bevel gear; the second bevel gear is fixedly connected with the first rotating shaft.

Preferably, when the cleaning mechanism starts to work, firstly, the motor is started to drive the incomplete bevel gear, the incomplete straight gear and the first bevel gear to rotate; when the toothed part of the incomplete bevel gear is meshed with the second bevel gear, the toothless part of the incomplete bevel gear is matched with the rack, so that the main body is fixed, the first rotating shaft drives the plurality of cleaning scraping plates to rotate by 0 degree, and the cleaning scraping plates extend into the vent holes to scrape dust in the cleaning scraping plates into the sewage discharge channel;

when the toothless part of the incomplete bevel gear is matched with the second bevel gear, the toothed part of the incomplete bevel gear is meshed with the rack to drive the main body to move for a fixed distance S, wherein the fixed distance S is the spacing distance between two adjacent rows of vent holes; when the main body moves, air is introduced into the sewage channel from the port A, and dust in the sewage channel is blown into the storage cavity; when the main body stops, the external air stops being introduced;

the first bevel gear drives the bevel gear body to rotate by taking the second rotating shaft as an axis, and when the second inclined plane is not coincident with the first inclined plane, the evaporator cleaning brush is pushed downwards by overcoming the first spring under the action of the second inclined plane; when the second inclined plane is overlapped with the first inclined plane, the evaporator cleaning brush is pushed to move upwards under the action of the first spring.

Preferably, the waterproof mechanism comprises a water baffle, an electric pole, a first support rod, a third slide rod, a second support rod and a positioning mechanism; one end of the second supporting rod is hinged to the side wall of the inner cavity, and the other end of the second supporting rod is provided with a fifth channel; a communicating cavity communicated with the fifth channel is formed in the second supporting rod; the third sliding rod is arranged in the fifth channel in a sliding mode, and a positioning groove is formed in the third sliding rod; one end of the first support rod is fixedly connected with the water baffle, and the other end of the first support rod is fixedly connected with the third sliding rod; one end of the electric pole is hinged to the side wall of the inner cavity, and the other end of the electric pole is hinged to the middle of the first supporting rod;

the positioning mechanism is arranged in the communicating cavity; the positioning mechanism comprises a positioning rod and a reed; the middle part of the positioning rod is hinged in the communicating cavity, one end of the positioning rod close to the positioning groove is provided with a positioning pin, and the other end of the positioning rod is provided with a touch pin; one end of the reed is abutted against the second support rod, and the other end of the reed is abutted against the bottom end of one side of the positioning rod, which is close to the positioning pin; the positioning rod keeps the trend of driving the positioning pin to rotate towards the positioning groove.

Preferably, when the float switch detects that the height of the accumulated water reaches a certain value, the float switch controls the electric pole to extend out, and the electric pole extends out to drive the second support rod to swing to a horizontal position as the positioning pin positions the third slide rod in the positioning groove; the water baffle is driven to be vertically arranged between the first window and the protective net; when the touch pin touches the first boss, the positioning rod overcomes the reed to rotate, and drives the positioning pin to exit from the positioning groove; the third slide bar is unlocked; the electric pole continues to extend out, the first supporting rod is pushed to drive the water baffle to slide leftwards until the water baffle touches the machine shell, and the first window is blocked; preventing accumulated water from entering the shell; a gap is reserved between the cover and the water baffle, so that rainwater is prevented from entering the inner cavity, and air can be kept to smoothly enter and exit;

when the float switch detects that the height of accumulated water drops to a certain value, the float switch controls the electric pole to contract, and firstly, the water baffle is driven to slide rightwards through the first support rod; when the first supporting rod touches the second supporting rod, the second supporting rod is pulled to swing upwards, and the water baffle is pulled up; the positioning rod rotates under the action of the reed, the positioning pin is pushed into the positioning groove, and the third sliding rod is locked.

Compared with the prior art, the invention has the advantages that:

1. the driving mechanism is used for driving the protective net cleaning part to move, so that the protective net cleaning part works intermittently, the cyclic action processes of cleaning, moving, cleaning and moving can be completed, and all dust on the protective net can be cleaned;

2. the rotatable cleaning scraper is matched with the main body, so that dust can be conveyed into the storage cavity to be collected after being scraped into the main body by the cleaning scraper, and convenience and sanitation are achieved;

3. the driving device is used for controlling the action of the cleaning part of the evaporator, so that the cleaning mechanism can move and clean dust on the evaporator at the same time, the control is simple, and the service life of the motor can be prolonged;

4. the telescopic of the electric pole is controlled through the float switch, so that the position of the water baffle is controlled, the first window is blocked, accumulated water is prevented from entering the shell, and a protection effect is achieved;

5. through using the covering structure, a certain space is left between the covering and the water baffle, and the smooth flow of air is not influenced when the water baffle shields the first window.

Drawings

FIG. 1 is a cross-sectional view of a heat pump according to the present invention;

FIG. 2 is a cross-sectional view of the interior of the water guard mechanism when the water guard plate of the present invention is pulled up;

FIG. 3 is a sectional view of the interior of the water guard mechanism during the lowering of the water guard according to the present invention;

FIG. 4 is a cross-sectional view of the interior of the water dam mechanism after the water dam of the present invention is lowered into position;

FIG. 5 is an internal cross-sectional view of the cleaning mechanism of the present invention;

FIG. 6 is an enlarged view taken at I of FIG. 1 according to the present invention;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6 in accordance with the present invention;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6 in accordance with the present invention;

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 6 in accordance with the present invention;

FIG. 10 is an enlarged view taken at II of FIG. 3 in accordance with the present invention;

fig. 11 is a full-face view of the protection net of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1-11, a heat pump, characterized by: the heat pump comprises a machine shell 1, a heat pump main body 2, a protective net 3, a float switch 4, a waterproof mechanism 5 and a cleaning mechanism 6; an inner cavity 11 is arranged in the machine shell 1, a first window communicated with the inner cavity 11 is arranged on the side surface of the machine shell 1, and a convex cover 12 is arranged above the first window and used for blocking rainwater; a first boss 13 is arranged on the side wall of the shell 1; the heat pump main body 2 is arranged in the inner cavity 11, and the heat pump main body 2 comprises a heat pump shell 21, an evaporator 22 and a heat preservation water tank 23; the heat pump shell 21 is fixedly arranged in the inner cavity 11, and a heat pump cavity 211 is arranged in the heat pump shell 21; a second window communicated with the heat pump cavity 211 is further arranged on one side of the heat pump shell 21, and the orientation of the second window is consistent with that of the first window; the evaporator 22 is arranged at one side of the heat pump cavity 211 close to the second window, and the heat-insulating water tank 23 is arranged at one side of the heat pump shell 21 far away from the second window; the protective net 3 is arranged on the second window, and the protective net 3 is provided with a vent hole for introducing air; the waterproof mechanism 5 is arranged in the inner cavity 11 and used for preventing accumulated water from entering the inner cavity 11; the float switch 4 is arranged below the first window and used for detecting the height of accumulated water and further controlling the operation of the waterproof mechanism 5; the cleaning mechanism 6 is provided between the protection net 3 and the evaporator 22 to clean dust on the protection net 3 and the evaporator 22.

Preferably, the cleaning mechanism 6 includes a main body 61, a sliding mechanism, a driving mechanism 63, an evaporator cleaning member, and a protective net cleaning member; the sliding mechanism comprises a first sliding bar 621, a second sliding bar 622, and a rack 623; the first sliding rod 621 and the second sliding rod 622 are horizontally and fixedly arranged in the heat pump cavity 211 from top to bottom in sequence; the rack 623 is horizontally and fixedly arranged in the heat pump cavity 211 and is positioned at the left side of the first sliding rod 621; the main body 61 is slidably arranged on the first sliding rod 621 and the second sliding rod 622, and a sewage channel 612 is arranged inside the main body 61; a plurality of third windows communicated with the drainage channel 612 are arranged on the left side wall of the main body 61, and each third window corresponds to the position of the vent hole one by one; a first channel penetrating through the third windows is arranged on the left side wall of the main body 61 along the vertical direction; a second boss and a third boss are sequentially arranged on the right side of the main body 61 from top to bottom, and a second channel is arranged on the second boss along the vertical direction;

the driving mechanism 63 is arranged above the main body 61, the driving mechanism 63 can drive the cleaning mechanism 6 to move by matching with the rack 623, and the driving mechanism 63 can also drive the evaporator cleaning component and the protective net cleaning component to perform cleaning work; the evaporator cleaning component is arranged between the second boss and the third boss and used for cleaning the evaporator 22; the protective net cleaning part is rotatably arranged in the first channel and the third window; for cleaning the air holes on the protective net 3.

Preferably, an air inlet channel 611 for connecting the sewage channel 612 and the air inlet A is arranged above the main body 61; a storage cavity 613 for storing dust is arranged below the main body 61, the storage cavity 613 is communicated with the sewage channel 612, and a filter screen 614 for exhausting air is arranged at the bottom of the storage cavity 613; a third channel is arranged on the second boss along the horizontal direction, and the first sliding rod 621 is arranged in the third channel in a sliding manner; a fourth channel is arranged on the third boss along the horizontal direction, and the second sliding rod 622 is arranged in the fourth channel in a sliding mode.

Preferably, the protection net cleaning means includes a first rotating shaft 651 and a plurality of cleaning blades 652; a first shaft 651 rotatably disposed within the first passage; the plurality of cleaning scrapers 652 are rotatably disposed in the plurality of third windows, respectively, and the plurality of cleaning scrapers 652 are centrally penetrated through and fixedly connected to the first rotating shaft 651.

Preferably, the evaporator cleaning part includes a second rotation shaft 643, an evaporator cleaning brush 641, and a first spring 642; one end of the second rotating shaft 643 is fixedly connected with the third boss, and the other end of the second rotating shaft 643 penetrates through the second channel; the evaporator cleaning brush 641 is slidably disposed on the second rotating shaft 643; one side of the evaporator cleaning brush 641 is provided with bristles for cleaning the evaporator, and the other side is in sliding fit with the main body 61; a first inclined plane 6411 is further disposed above the evaporator cleaning brush 641; one end of the first spring 642 abuts against the lower end of the evaporator cleaning brush 641, and the other end abuts against the third boss, so that the evaporator cleaning brush 641 keeps a tendency of moving upwards.

Preferably, the driving mechanism 63 includes a motor 631, a first bevel gear body 632, a second bevel gear 633, an incomplete spur gear 634, an incomplete bevel gear 636, and a bevel gear body 635; the motor 631 is fixedly connected to the second boss, and an output shaft of the motor 631 is fixedly connected to the first bevel gear 632; the bevel gear body 635 is rotatably arranged in the second channel, and the bevel gear body 635 is sleeved on the second rotating shaft 643 and is rotatably connected with the second rotating shaft 643; one end of the bevel gear body 635 is provided with a third bevel gear 6351, and the other end is provided with a second inclined surface 6352; the third bevel gear 6351 meshes with the first bevel gear 632; the second slope 6352 cooperates with the first slope 6411 to push the evaporator cleaning brush 641;

the incomplete straight gear 634 is fixedly connected to an output shaft of the motor 631, the incomplete straight gear 634 is provided with a half straight tooth, and a tooth part of the incomplete straight gear 634 is meshed with the rack 623; the incomplete bevel gear 633 is fixedly connected to an output shaft of the motor 631, the incomplete bevel gear 636 is provided with half bevel teeth, and the direction of the toothed part of the incomplete bevel gear 633 is consistent with the direction of the toothed part of the incomplete straight gear 634; the toothed part of the incomplete bevel gear 636 is meshed with the second bevel gear 633; the second bevel gear 633 is fixedly connected to the first shaft 651.

Preferably, when the cleaning mechanism 6 starts to work, the motor 631 is started to drive the incomplete bevel gear 636, the incomplete spur gear 634 and the first bevel gear 632 to rotate; when the toothed part of the incomplete bevel gear 636 is meshed with the second bevel gear 633, the toothless part of the incomplete bevel gear 634 is matched with the rack 623, so that the main body 61 is fixed, the first rotating shaft 651 drives the plurality of cleaning scrapers 652 to rotate 180 degrees, and the cleaning scrapers 652 extend into the vent holes to scrape dust in the interior of the vent holes into the sewage channel 612;

when the toothless part of the incomplete bevel gear 636 is matched with the second bevel gear 633, the toothed part of the incomplete bevel gear 634 is meshed with the rack 623 to drive the main body 61 to move for a fixed distance S1, wherein the fixed distance S1 is the spacing distance between two adjacent rows of vent holes; while the main body 61 moves, air is introduced into the trapway 612 from the port a, and dust in the trapway 612 is blown into the storage chamber 613; when the main body 61 stops, the introduction of the external air stops;

the first bevel gear 632 drives the bevel gear body 635 to rotate around the second rotation shaft 643, and when the second inclined surface 6352 is not overlapped with the first inclined surface 6411, the evaporator cleaning brush 641 is pushed downwards by the second inclined surface 6352 against the first spring 642; when the second slope 6352 coincides with the first slope 6411, the evaporator cleaning brush 641 is urged to move upward by the first spring 642.

Preferably, the waterproof mechanism 5 comprises a water baffle 52, an electric pole 51, a first support rod 53, a third slide rod 54, a second support rod 55 and a positioning mechanism; one end of the second support rod 55 is hinged on the side wall of the inner cavity 11, and the other end is provided with a fifth channel; a communicating cavity 552 communicated with the fifth channel is arranged on the second supporting rod 55; the third sliding rod 54 is arranged in the fifth channel in a sliding manner, and a positioning groove 541 is formed in the third sliding rod 54; one end of the first supporting rod 53 is fixedly connected with the water baffle 52, and the other end is fixedly connected with the third sliding rod 54; one end of the electric pole 51 is hinged on the side wall of the inner cavity 11, and the other end is hinged with the middle part of the first supporting rod 53;

the positioning mechanism is disposed within the communication cavity 552; the positioning mechanism comprises a positioning rod 56 and a spring plate 57; the middle part of the positioning rod 56 is hinged in the communication cavity 552, one end of the positioning rod 56 close to the positioning groove 541 is provided with a positioning pin 561, and the other end is provided with a touch pin 562; one end of the spring 57 abuts against the second support rod 55, and the other end abuts against the bottom end of the positioning rod 56 near the positioning pin 561; the positioning rod 65 keeps the tendency of driving the positioning pin 561 to rotate toward the positioning groove 541.

Preferably, when the float switch 4 detects that the height of the accumulated water reaches a certain value, the float switch 4 controls the electric pole 51 to extend out, and the electric pole 51 extends out to drive the second support rod 54 to swing to a horizontal position as the positioning pin 561 positions the third slide bar 54 in the positioning groove 541; the water baffle 52 is driven to be vertically arranged between the first window and the protective net 3; when the touch pin 562 touches the first boss 13, the positioning rod 56 overcomes the reed 57 to rotate, and drives the positioning pin 561 to exit from the positioning slot 541; the third slide bar 54 is unlocked; the electric pole 51 continues to extend out, the first supporting rod 53 is pushed to drive the water baffle 52 to slide leftwards until the water baffle 52 is contacted with the machine shell 1, and the first window is blocked; preventing accumulated water from entering the machine shell 1; a gap is reserved between the cover 12 and the water baffle plate 52, so that the air can be kept to smoothly enter and exit while rainwater is prevented from entering the inner cavity 11;

when the float switch 4 detects that the height of the accumulated water drops to a certain value, the float switch 4 controls the electric pole 51 to contract, and firstly, the water baffle 52 is driven to slide rightwards through the first support rod 53; when the first support rod 53 contacts with the second support rod 54, the second support rod 54 is pulled to swing upwards, and the water baffle plate 52 is pulled up; the positioning rod 56 rotates under the action of the reed 57, so that the positioning pin 561 is pushed into the positioning slot 541, and the third slide bar 54 is locked.

The working principle and the process of the heat pump are as follows:

as shown in fig. 1, when the heat pump starts to work, the heat pump main body 1 works to exchange heat with air to heat the inside of the heat-preservation water tank 23; when the heat pump works for a long time and a large amount of dust is accumulated on the evaporator 22 and the protective net 3, the motor 631 is started to drive the incomplete bevel gear 636, the incomplete straight gear 634 and the first bevel gear 632 to rotate; when the toothed part of the incomplete bevel gear 636 is meshed with the second bevel gear 633, the toothless part of the incomplete bevel gear 634 is matched with the rack 623, and the first rotating shaft 651 drives the plurality of cleaning scrapers 652 to rotate, so that the cleaning scrapers 652 extend into the vent holes to scrape dust in the interior of the cleaning scrapers 652 into the sewage channel 612; when the incomplete bevel gear 636 rotates 180 degrees, the cleaning scraper 652 rotates 180 degrees completely, and external dust can be just brought into the sewage channel 612 completely; at the moment, the toothless part of the incomplete bevel gear 636 is matched with the second bevel gear 633, and the toothed part of the incomplete straight gear 634 is meshed with the rack 623 to drive the main body 61 to move by the interval distance between two adjacent rows of vent holes; while the main body 61 moves, air is introduced into the trapway 612 from the port a, and dust in the trapway 612 is blown into the storage chamber 613; when the main body 61 stops, the introduction of the external air stops; after the incomplete straight gear 634 rotates 180 degrees, the toothed part of the incomplete straight gear 636 is meshed with the second bevel gear 633 again, and the toothless part of the incomplete straight gear 634 is meshed with the rack 623, so that the cleaning scraper 652 can complete the cyclic actions of cleaning, displacement, cleaning and displacement until the protective net 3 is cleaned;

meanwhile, the first bevel gear 632 drives the bevel gear body 635 to rotate around the second rotating shaft 643 as an axis, and when the second inclined surface 6352 is not overlapped with the first inclined surface 6411, the evaporator cleaning brush 641 is pushed downwards by overcoming the first spring 642 under the action of the second inclined surface 6352; when the second slope 6352 coincides with the first slope 6411, the evaporator cleaning brush 641 is urged to move upward by the first spring 642. Therefore, the motor 631 drives the first bevel gear 632 to rotate ceaselessly to drive the evaporator cleaning brush 641 to perform a vertical reciprocating motion ceaselessly, so as to clean the evaporator;

when the buoy switch 4 detects that the height of accumulated water reaches a certain value in continuous rainfall weather, the buoy switch 4 controls the electric pole 51 to extend out to drive the second support rod 54 to swing to the horizontal position, and further drives the water baffle 52 to be vertically arranged between the first window and the protective net 3; when the touch pin 562 touches the first boss 13, the positioning pin 561 exits the positioning slot 541; the third slide bar 54 is unlocked; the electric pole 51 continues to extend out, the first supporting rod 53 is pushed to drive the water baffle 52 to slide leftwards until the water baffle 52 is contacted with the machine shell 1, and the first window is blocked; preventing accumulated water from entering the machine shell 1; a gap is reserved between the cover 12 and the water baffle plate 52, so that the air can be kept to smoothly enter and exit while rainwater is prevented from entering the inner cavity 11;

when the float switch 4 detects that the height of the accumulated water drops to a certain value, the float switch 4 controls the electric pole 51 to contract, and firstly, the water baffle 52 is driven to slide rightwards through the first support rod 53; when the first support rod 53 contacts with the second support rod 54, the second support rod 54 is pulled to swing upwards, and the water baffle plate 52 is pulled up; the positioning rod 56 is rotated by the spring 57 to push the positioning pin 561 into the positioning slot 541, and the third slide bar 54 is locked, so that the water guard plate 52 is retracted.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat pump, characterized by: the heat pump comprises a shell (1), a heat pump main body (2), a protective net (3), a float switch (4), a waterproof mechanism (5) and a cleaning mechanism (6);

an inner cavity (11) is formed in the machine shell (1), a first window communicated with the inner cavity (11) is formed in the side face of the machine shell (1), and a convex cover (12) is arranged above the first window and used for shielding rainwater; a first boss (13) is arranged on the side wall of the shell (1);

the heat pump main body (2) is arranged in the inner cavity (11), and the heat pump main body (2) comprises a heat pump shell (21), an evaporator (22) and a heat preservation water tank (23); the heat pump shell (21) is fixedly arranged in the inner cavity (11), and a heat pump cavity (211) is arranged in the heat pump shell (21); a second window communicated with the heat pump cavity (211) is further arranged on one side of the heat pump shell (21), and the orientation of the second window is consistent with that of the first window; the evaporator (22) is arranged at one side, close to the second window, in the heat pump cavity (211), and the heat-insulating water tank (23) is arranged at one side, far away from the second window, outside the heat pump shell (21);

the protective net (3) is arranged on the second window, and vent holes for introducing air are formed in the protective net (3);

the waterproof mechanism (5) is arranged in the inner cavity (11) and used for preventing accumulated water from entering the inner cavity (11);

the float switch (4) is arranged below the first window and used for detecting the height of accumulated water and further controlling the operation of the waterproof mechanism (5);

the cleaning mechanism (6) is arranged between the protective net (3) and the evaporator (22) and used for cleaning dust on the protective net (3) and the evaporator (22).

2. The heat pump of claim 1, wherein: the cleaning mechanism (6) comprises a main body (61), a sliding mechanism, a driving mechanism (63), an evaporator cleaning part and a protective net cleaning part;

the sliding mechanism comprises a first sliding rod (621), a second sliding rod (622), and a rack (623); the first sliding rod (621) and the second sliding rod (622) are horizontally and fixedly arranged in the heat pump cavity (211) from top to bottom in sequence; the rack (623) is horizontally and fixedly arranged in the heat pump cavity (211) and is positioned on the left side of the first sliding rod (621);

the main body (61) is arranged on the first sliding rod (621) and the second sliding rod (622) in a sliding mode, and a sewage channel (612) is arranged inside the main body (61); a plurality of third windows communicated with the blowdown channel (612) are arranged on the left side wall of the main body (61), and the positions of the third windows and the positions of the vent holes are in one-to-one correspondence; a first channel penetrating through the third windows is arranged on the left side wall of the main body (61) along the vertical direction; a second boss and a third boss are sequentially arranged on the right side of the main body (61) from top to bottom, and a second channel is arranged on the second boss in the vertical direction;

the driving mechanism (63) is arranged above the main body (61), the driving mechanism (63) is matched with the rack (623) to drive the cleaning mechanism (6) to move, and the driving mechanism (63) can also drive the evaporator cleaning component and the protective net cleaning component to perform cleaning work;

the evaporator cleaning component is arranged between the second boss and the third boss and used for cleaning the evaporator (22);

the protective net cleaning component is rotatably arranged in the first channel and the third window; used for cleaning the air holes on the protective net (3).

3. The heat pump of claim 2, wherein: an air inlet flow channel (611) used for connecting the sewage channel (612) and the air inlet A is arranged above the main body (61); a storage cavity (613) for storing dust is arranged below the main body (61), the storage cavity (613) is communicated with the sewage channel (612), and a filter screen (614) for exhausting air is arranged at the bottom of the storage cavity (613); a third channel is arranged on the second boss along the horizontal direction, and the first sliding rod (621) is arranged in the third channel in a sliding manner; and a fourth channel is arranged on the third boss along the horizontal direction, and the second sliding rod (622) is arranged in the fourth channel in a sliding manner.

4. The heat pump of claim 2, wherein: the protective net cleaning component comprises a first rotating shaft (651) and a plurality of cleaning scrapers (652);

the first rotating shaft (651) is rotatably arranged in the first channel; the plurality of cleaning scrapers (652) are rotatably arranged in the plurality of third windows respectively, and the centers of the plurality of cleaning scrapers (652) penetrate through and are fixedly connected to the first rotating shaft (651).

5. The heat pump of claim 2, wherein: the evaporator cleaning part comprises a second rotating shaft (643), an evaporator cleaning brush (641) and a first spring (642);

one end of the second rotating shaft (643) is fixedly connected with the third boss, and the other end of the second rotating shaft (643) penetrates through the second channel;

the evaporator cleaning brush (641) is arranged on the second rotating shaft (643) in a sliding mode; one side of the evaporator cleaning brush (641) is provided with bristles for cleaning the evaporator, and the other side of the evaporator cleaning brush is in sliding fit with the main body (61); a first inclined plane (6411) is arranged above the evaporator cleaning brush (641);

one end of the first spring (642) is abutted against the lower end of the evaporator cleaning brush (641), and the other end of the first spring is abutted against the third boss, so that the evaporator cleaning brush (641) keeps an upward movement trend.

6. The heat pump of claim 5, wherein: the driving mechanism (63) comprises a motor (631), a first bevel gear body (632), a second bevel gear (633), an incomplete straight gear (634), an incomplete bevel gear (636) and a bevel gear body (635);

the motor (631) is fixedly connected to the second boss, and an output shaft of the motor (631) is fixedly connected with the first bevel gear (632);

the bevel gear body (635) is rotatably arranged in the second channel, and the bevel gear body (635) is sleeved on the second rotating shaft (643) and is rotatably connected with the second rotating shaft (643); one end of the bevel gear body (635) is provided with a third bevel gear (6351), and the other end of the bevel gear body is provided with a second inclined surface (6352); the third bevel gear (6351) is meshed with the first bevel gear (632); the second inclined surface (6352) is matched with the first inclined surface (6411) to push the evaporator cleaning brush (641);

the incomplete straight gear (634) is fixedly connected to an output shaft of the motor (631), the incomplete straight gear (634) is provided with a half straight gear, and a toothed part of the incomplete straight gear (634) is meshed with the rack (623);

the incomplete bevel gear (633) is fixedly connected to an output shaft of the motor (631), the incomplete bevel gear (636) is provided with half bevel teeth, and the direction of the toothed part of the incomplete bevel gear (633) is consistent with the direction of the toothed part of the incomplete straight gear (634); the toothed part of the incomplete bevel gear (636) is meshed with a second bevel gear (633); the second bevel gear (633) is fixedly connected with the first rotating shaft (651).

7. The heat pump of claim 6, wherein: when the cleaning mechanism (6) starts to work, firstly, the motor (631) is started to drive the incomplete bevel gear (636), the incomplete straight gear (634) and the first bevel gear (632) to rotate; when the toothed part of the incomplete bevel gear (636) is meshed with the second bevel gear (633), the toothless part of the incomplete bevel gear (634) is matched with the rack (623), so that the main body (61) is fixed, the first rotating shaft (651) drives the plurality of cleaning scrapers (652) to rotate 180 degrees, and the cleaning scrapers (652) extend into the vent holes to scrape dust in the cleaning scrapers into the sewage drainage channel (612);

when the toothless part of the incomplete bevel gear (636) is matched with the second bevel gear (633), the toothed part of the incomplete straight gear (634) is meshed with the rack (623) to drive the main body (61) to move for a fixed distance S1, wherein the fixed distance S1 is the spacing distance between two adjacent rows of vent holes; while the main body (61) moves, air is introduced into the sewage channel (612) from the port A, and dust in the sewage channel (612) is blown into the storage cavity (613); when the main body (61) stops, the external air stops flowing in;

the first bevel gear (632) drives the bevel gear body (635) to rotate by taking the second rotating shaft (643) as an axis, and when the second inclined surface (6352) is not overlapped with the first inclined surface (6411), the evaporator cleaning brush (641) is pushed downwards by overcoming the first spring (642) under the action of the second inclined surface (6352); when the second slope (6352) is overlapped with the first slope (6411), the evaporator cleaning brush (641) is pushed to move upward by the first spring (642).

8. The heat pump of claim 1, wherein: the waterproof mechanism (5) comprises a water baffle (52), an electric pole (51), a first supporting rod (53), a third sliding rod (54), a second supporting rod (55) and a positioning mechanism;

one end of the second supporting rod (55) is hinged to the side wall of the inner cavity (11), and the other end of the second supporting rod is provided with a fifth channel; a communicating cavity (552) communicated with the fifth channel is formed in the second supporting rod (55);

the third sliding rod (54) is arranged in a fifth channel in a sliding mode, and a positioning groove (541) is formed in the third sliding rod (54);

one end of the first support rod (53) is fixedly connected with the water baffle (52), and the other end of the first support rod is fixedly connected with the third sliding rod (54);

one end of the electric pole (51) is hinged to the side wall of the inner cavity (11), and the other end of the electric pole is hinged to the middle of the first supporting rod (53);

the positioning mechanism is arranged in the communication cavity (552); the positioning mechanism comprises a positioning rod (56) and a spring plate (57); the middle part of the positioning rod (56) is hinged in the communicating cavity (552), one end, close to the positioning groove (541), of the positioning rod (56) is provided with a positioning pin (561), and the other end of the positioning rod is provided with a touch pin (562); one end of the reed (57) is propped against the second supporting rod (55), and the other end of the reed is propped against the bottom end of one side, close to the positioning pin (561), of the positioning rod (56); the positioning rod (65) keeps the trend of driving the positioning pin (561) to rotate towards the positioning groove (541).

9. The heat pump of claim 8, wherein: when the float switch (4) detects that the height of accumulated water reaches a certain value, the float switch (4) controls the electric pole (51) to extend out, and the electric pole (51) extends out to drive the second supporting rod (54) to swing to a horizontal position due to the fact that the third sliding rod (54) is positioned in the positioning groove (541) by the positioning pin (561); the water baffle (52) is driven to be vertically arranged between the first window and the protective net (3); when the touch pin (562) touches the first boss (13), the positioning rod (56) overcomes the reed (57) to rotate, and the positioning pin (561) is driven to exit the positioning groove (541); the third slide bar (54) is unlocked; the electric pole (51) continues to extend out, the first supporting rod (53) is pushed to drive the water baffle (52) to slide leftwards until the water baffle (52) touches the machine shell (1), and the first window is blocked; preventing accumulated water from entering the shell (1); a gap is reserved between the cover (12) and the water baffle (52), so that the air can be kept to smoothly enter and exit while rainwater is prevented from entering the inner cavity (11);

when the float switch (4) detects that the height of accumulated water drops to a certain value, the float switch (4) controls the electric pole (51) to contract, and firstly, the water baffle (52) is driven to slide rightwards through the first support rod (53); when the first supporting rod (53) is in contact with the second supporting rod (54), the second supporting rod (54) is pulled to swing upwards, and the water baffle (52) is pulled up; the positioning rod (56) rotates under the action of the reed (57), the positioning pin (561) is pushed into the positioning groove (541), and the third sliding rod (54) is locked.