Protective device of air source heat pump

Abstract

The utility model relates to the technical field of air source heat pumps, and discloses a protective device of an air source heat pump, which comprises a heat pump body and a ventilation pipe communicated with the top of the heat pump body, and further comprises a stepping motor bolted to the top of the heat pump body, a first spur gear fixed on an output shaft of the stepping motor, and a second spur gear fixed on the output shaft of the stepping motor, one side of the first spur gear is engaged with a second spur gear; through the cooperation of a stepping motor, a first spur gear, a rotating shaft and a second spur gear, the filter screen can rotate, meanwhile, through the cooperation of a rotating mechanism, a water storage tank, a water pump impeller, a conveying pipe and a spray head, condensate water discharged when the heat pump body works can clean the surface of the filter screen, and therefore the heat pump body can clean the surface of the filter screen. And therefore, the situation that the catkins accumulate on the surface of the filter screen to cause blockage is prevented, the situation that the air source heat pump breaks down due to the high temperature during working is reduced, condensate water can be recycled, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air source heat pumps, in particular to a protective device for an air source heat pump. Background Art

[0002] Air source heat pump is an energy-saving device that uses high-level energy to make heat flow from low-level heat source air to high-level heat source. As the name implies, heat pump is like a pump, which can convert low-level heat energy that cannot be directly used into high-level heat energy that can be used, thereby achieving the purpose of saving some high-level energy. However, air source heat pump needs to be protected during use, so people have designed a protective device.

[0003] However, when the existing air source heat pump protection devices are put into use, a filter is required to protect the interior of the air source heat pump to prevent external impurities and catkins from entering the interior and causing the interior to malfunction. When catkins begin to overflow, they accumulate on the filter due to excessive amounts, greatly reducing the heat dissipation effect of the air source heat pump, which can easily cause malfunctions of the working components inside the air source heat pump. When the temperature is too high, it can even cause a fire. Utility Model Content

[0004] The purpose of the utility model is to provide a protective device for an air source heat pump to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a protective device for an air source heat pump, comprising a heat pump body and a ventilation pipe connected to the top of the heat pump body, and also comprising:

[0006] A stepper motor is bolted to the top of the heat pump body, wherein a first spur gear is fixed to the output shaft of the stepper motor, and a second spur gear is meshed on one side of the first spur gear;

[0007] A rotating shaft fixed to the inner cavity of the second spur gear, a transmission mechanism is provided on one side of the rotating shaft, a filter screen is fixed on one end of the rotating shaft, a condensed water outlet outside the heat pump body is connected to a drain pipe, and one end of the drain pipe is connected to a water storage tank;

[0008] The rotating mechanism is arranged on one side of the heat pump body, one side of the water storage tank is connected to a fixed shell, the inner cavity of the fixed shell is equipped with a water pump impeller, the other side of the fixed shell is connected to a transmission pipe, and the surface of the transmission pipe is connected to a nozzle.

[0009] Preferably, the transmission mechanism comprises a first bevel gear fixed to the surface of the rotating shaft, a second bevel gear is meshed on one side of the first bevel gear, and a transmission rod is fixed to the bottom of the second bevel gear.

[0010] Preferably, the rotating mechanism includes a third bevel gear fixed to one end of a transmission rod, a fourth bevel gear is meshed on one side of the third bevel gear, a rotating rod is fixed on one side of the fourth bevel gear, and one end of the rotating rod is fixedly connected to one side of a water pump impeller.

[0011] Preferably, there is a distance between one side of the filter screen and the inner cavity of the ventilation pipe.

[0012] Preferably, a support block is rotatably connected to the surface of the rotating shaft, and the top of the support block is fixedly connected to the bottom of the ventilation pipe.

[0013] Preferably, the surface of the transmission pipe is fixedly connected to one side of the heat pump body through a fixing block.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can rotate the filter screen through the cooperation of the stepping motor, the first spur gear, the rotating shaft, and the second spur gear. At the same time, with the cooperation of the rotating mechanism, the water storage tank, the water pump impeller, the transmission pipe and the nozzle, the condensed water discharged when the heat pump body is working can clean the surface of the filter screen, thereby preventing the accumulation of catkins on the surface of the filter screen and causing blockage, and reducing the occurrence of malfunctions due to high temperature when the air source heat pump is working. Not only can the condensed water be recycled, but the stability of the device is also increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the transmission mechanism in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the rotating mechanism in the utility model.

[0020] In the figure: 1. heat pump body; 2. ventilation pipe; 3. stepping motor; 4. first spur gear; 5. second spur gear; 6. rotating shaft; 7. transmission mechanism; 71. first bevel gear; 72. second bevel gear; 73. transmission rod; 8. filter screen; 9. support block; 10. drain pipe; 11. water storage tank; 12. rotating mechanism; 121. third bevel gear; 122. fourth bevel gear; 123. rotating rod; 13. fixed shell; 14. water pump impeller; 15. transmission pipe; 16. nozzle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4As shown, a protective device for an air source heat pump comprises a heat pump body 1, which enables the device to work. A ventilation pipe 2 is connected to the top of the heat pump body 1, a stepper motor 3 is bolted to the top of the heat pump body 1, a first spur gear 4 is fixed to the output shaft of the stepper motor 3, a second spur gear 5 is meshed on one side of the first spur gear 4, a rotating shaft 6 is fixed to the inner cavity of the second spur gear 5, and one side of the rotating shaft 6 is fixedly connected to the top of the heat pump body 1 through a bearing seat. Under the action of the stepper motor 3, the first spur gear 4 can drive the rotating shaft 6 to rotate through the second spur gear 5, so that the device can run more stably and rotate. A transmission mechanism 7 is provided on one side of the shaft 6, and the transmission mechanism 7 can change the direction of the rotation power of the rotating shaft 6. A filter screen 8 is fixed to one end of the rotating shaft 6, and the surface of the filter screen 8 is slidably connected to the inner cavity of the ventilation pipe 2. The filter screen 8 can prevent dust and catkins from entering the interior of the heat pump body 1 through the ventilation pipe 2, thereby increasing the service life of the device. One side of the filter screen 8 is designed to be at a certain distance from the inner cavity of the ventilation pipe 2, which can prevent catkins from remaining in the ventilation pipe 2, thereby increasing the use effect of the device. The surface of the rotating shaft 6 is rotatably connected to a support block 9, and the top of the support block 9 is fixedly connected to the bottom of the ventilation pipe 2. Under the action of block 9, the position displacement of the rotating shaft 6 during operation can be effectively prevented, thereby increasing the stability of the device. A drain pipe 10 is connected to one side of the heat pump body 1, and the other side of the drain pipe 10 is connected to the condensed water outlet. One end of the drain pipe 10 is connected to a water storage tank 11. With the cooperation of the drain pipe 10 and the water storage tank 11, the device can control the discharge of condensed water. A rotating mechanism 12 is provided on one side of the heat pump body 1, and a fixed shell 13 is connected to one side of the water storage tank 11. A water pump impeller 14 is installed in the inner cavity of the fixed shell 13. A transmission pipe 15 is connected to the other side of the fixed shell 13. 1, the discharged condensed water can enter the interior of the fixed shell 13, and at the same time, with the cooperation of the rotating mechanism 12 and the transmission mechanism 7, the water pump impeller 14 can be rotated, so that the condensed water inside the fixed shell 13 enters the interior of the transmission pipe 15, and the surface of the transmission pipe 15 is connected with a nozzle 16. The number of the nozzles 16 is several and is symmetrically designed with the central axis of the heat pump body 1. With the cooperation of the transmission pipe 15 and the nozzle 16, the condensed water can be sprayed on the surface of the filter screen 8, which effectively prevents the catkins from clogging the filter screen 8, enhances the efficiency of the air energy conversion of the device, and thus increases the use effect of the device.

[0023] The transmission mechanism 7 includes a first bevel gear 71, the inner cavity of the first bevel gear 71 is fixedly connected to the surface of the rotating shaft 6, a second bevel gear 72 is meshed on one side of the first bevel gear 71, and a transmission rod 73 is fixed to the bottom of the second bevel gear 72. With the cooperation of the second spur gear 5 and the rotating shaft 6, the first bevel gear 71 can drive the transmission rod 73 to rotate through the second bevel gear 72. At the same time, with the cooperation of the rotating mechanism 12, the stepping motor 3 can drive the water pump impeller 14 to rotate, thereby reducing the installation and production costs of the device and increasing the practical effect of the device.

[0024] The rotating mechanism 12 includes a third bevel gear 121, the top of the third bevel gear 121 is fixedly connected to one end of the transmission rod 73, and one side of the third bevel gear 121 is meshed with a fourth bevel gear 122, and one side of the fourth bevel gear 122 is fixed with a rotating rod 123, and the surface of the rotating rod 123 is fixedly connected to one side of the heat pump body 1 through a fixed block, and one end of the rotating rod 123 is fixedly connected to one side of the water pump impeller 14. Under the action of the transmission mechanism 7, the third bevel gear 121 can drive the rotating rod 123 to rotate through the fourth bevel gear 122, so that the rotating rod 123 drives the water pump impeller 14 to rotate inside the fixed shell 13, so that the condensed water can be sprayed on the surface of the filter screen 8 through the nozzle 16 along the transmission pipe 15, effectively preventing the catkins from falling on the surface of the filter screen 8 and causing accumulation, so that the filter screen 8 can always remain unobstructed during operation, thereby increasing the working efficiency of the device and thus increasing the use effect of the device.

[0025] It is worth noting that the technical features of the heat pump body 1 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control method and spatial layout of these technical features can be selected according to conventional methods in the field, and this technical solution will not be further elaborated.

[0026] Working principle: When the device is not working, the condensed water flowing out from the inside of the heat pump body 1 enters the water storage tank 11 through the drain pipe 10 for temporary storage. The staff periodically turns on the stepper motor 3 to make the first spur gear 4 drive the second spur gear 5 to rotate (the device is turned on once every 2 to 4 hours). The second spur gear 5 drives the filter screen 8 to rotate through the rotating shaft 6. At the same time, the second bevel gear 72 drives the transmission rod 73 to rotate through the first bevel gear 71. The transmission rod 73 drives the rotating rod 123 to rotate through the third bevel gear 121 so that the fourth bevel gear 122 drives the rotating rod 123 to rotate, so that the water pump impeller 14 rotates inside the fixed shell 13. With the cooperation of the drain pipe 10 and the water storage tank 11, the condensed water can enter the inside of the fixed shell 13. At the same time, the rotation of the water pump impeller 14 can make the condensed water enter the inside of the transmission pipe 15, and can be sprayed on the surface of the filter screen 8 through the nozzle 16, so as to clean the catkins and other impurities on the surface of the filter screen 8. Then the staff turns on the heat pump body 1 to enable the device to work.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] 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. A protective device for an air source heat pump, comprising a heat pump body (1) and a ventilation pipe (2) connected to the top of the heat pump body (1), characterized in that: Also includes: A stepper motor (3) is bolted to the top of the heat pump body (1), a first spur gear (4) is fixed to the output shaft of the stepper motor (3), and a second spur gear (5) is meshed on one side of the first spur gear (4); A rotating shaft (6) is fixed to the inner cavity of the second spur gear (5), a transmission mechanism (7) is provided on one side of the rotating shaft (6), a filter screen (8) is fixed to one end of the rotating shaft (6), a condensed water outlet outside the heat pump body (1) is connected to a drain pipe (10), and one end of the drain pipe (10) is connected to a water storage tank (11); A rotating mechanism (12) is arranged on one side of the heat pump body (1); one side of the water storage tank (11) is connected to a fixed shell (13); an inner cavity of the fixed shell (13) is provided with a water pump impeller (14); the other side of the fixed shell (13) is connected to a transmission pipe (15); and the surface of the transmission pipe (15) is connected to a nozzle (16).

2. The protective device for an air source heat pump according to claim 1, characterized in that: The transmission mechanism (7) comprises a first bevel gear (71) fixed to the surface of the rotating shaft (6), a second bevel gear (72) meshing on one side of the first bevel gear (71), and a transmission rod (73) fixed on the bottom of the second bevel gear (72).

3. The protective device for an air source heat pump according to claim 2, characterized in that: The rotating mechanism (12) comprises a third bevel gear (121) fixed to one end of a transmission rod (73); a fourth bevel gear (122) is meshed on one side of the third bevel gear (121); a rotating rod (123) is fixed on one side of the fourth bevel gear (122); and one end of the rotating rod (123) is fixedly connected to one side of a water pump impeller (14).

4. The protective device for an air source heat pump according to claim 1, characterized in that: There is a distance between one side of the filter screen (8) and the inner cavity of the ventilation pipe (2).

5. The protective device for an air source heat pump according to claim 1, characterized in that: A support block (9) is rotatably connected to the surface of the rotating shaft (6), and the top of the support block (9) is fixedly connected to the bottom of the ventilation pipe (2).

6. The protective device for an air source heat pump according to claim 3, characterized in that: The surface of the transmission pipe (15) is fixedly connected to one side of the heat pump body (1) via a fixing block.

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