Self-cleaning coffee machine pump body structure

Abstract

The utility model belongs to the technical field of coffee machines, and particularly discloses a self-cleaning coffee machine pump body structure which comprises a shell, a liquid inlet is formed in one end of the shell, a liquid outlet is formed in the end, away from the liquid inlet, of the shell, a filtering assembly is arranged in the liquid inlet, and a cleaning assembly is arranged on one side of the filtering assembly. The filtering assembly comprises a filtering net, a fixing frame is arranged on one side of the filtering net and connected with the inner wall of the shell, and a plurality of inserting rods are arranged on the side, close to the fixing frame, of the filtering net; the cleaning assembly comprises a fixing ring, the fixing ring is connected with the inner wall of the shell, a connecting ring is arranged on the inner side of the fixing ring, the fixing ring and the connecting ring are communicated and provided with a communicating rod, and the fixing ring and the connecting ring are communicated through the communicating rod. A user does not need to manually detach the coffee machine shell for cleaning, the operation burden of the user is greatly relieved, and use convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coffee machines, and more particularly to a self-cleaning coffee machine pump structure. Background Art

[0002] As people's living standards continue to improve, coffee, a popular beverage, is increasingly in demand in daily life. Coffee machines have become a must-have in many homes and offices. One of the core components of a coffee machine is the pump, which is responsible for pressurizing water and delivering it to the coffee brewing system to extract the coffee. Traditional coffee machine pumps are typically made of materials such as metal or plastic. They operate by using a motor to drive components such as a piston or impeller to move water from a low-pressure area to a high-pressure area. During this process, the pump must withstand high pressures and temperatures while also coming into contact with liquids such as water and coffee. Over time, dirt and impurities, such as coffee grounds and scale, inevitably accumulate inside the pump. This dirt not only affects the taste and quality of the coffee but can also clog the pump, reducing its efficiency or even damaging it.

[0003] When dirt and impurities accumulate inside the existing coffee machine pump body, the coffee machine shell needs to be manually removed to clean the internal pump body, which not only increases the user's operating burden, but also easily damages the pump body due to improper operation, thereby reducing the user's experience. Utility Model Content

[0004] In order to solve the above problems, the present application provides a self-cleaning coffee machine pump body structure.

[0005] The present application provides a self-cleaning coffee machine pump structure that adopts the following technical solutions:

[0006] A self-cleaning coffee machine pump structure includes a housing, a liquid inlet is formed at one end of the housing, a liquid outlet is formed at the end of the housing away from the liquid inlet, a filter assembly is provided inside the liquid inlet, and a cleaning assembly is provided on one side of the filter assembly;

[0007] The filter assembly includes a filter screen, a fixing frame is provided on one side of the filter screen, the fixing frame is connected to the inner wall of the shell, and a plurality of plug rods are provided on the side of the filter screen close to the fixing frame;

[0008] The cleaning component includes a fixed ring, which is connected to the inner wall of the shell. A connecting ring is provided on the inner side of the fixed ring. A connecting rod is provided to connect the fixed ring and the connecting ring. The fixed ring and the connecting ring are connected through the connecting rod. Multiple nozzles are provided on the opposite side of the fixed ring and the connecting ring.

[0009] Through the above technical solution, the cooperation of the micro pump and the nozzle can automatically clean the inside of the pump body, without the user having to manually disassemble the coffee machine shell for cleaning, which greatly reduces the user's operating burden and improves the convenience of use.

[0010] Furthermore, the multiple nozzles are arranged at an angle, a shaft is provided inside the shell, a motor is provided on one side of the shell, and one end of the shaft extends through the outside of the shell and is connected to the output end of the motor.

[0011] Furthermore, an impeller is fixedly connected to the outer wall of the shaft, and a plurality of nozzles are located between the filter screen and the impeller.

[0012] Through the above technical solution, the filter can block larger particles of impurities, such as coffee grounds, to prevent these impurities from entering the pump body and causing damage to components such as the impeller, which is beneficial to the subsequent cleaning of the pump body.

[0013] Furthermore, slots are provided inside the fixing frame, and the plurality of insertion rods are matched with corresponding slots respectively.

[0014] Furthermore, one end of the shaft passes through the filter and is connected to two scrapers, which are used to clean one side of the filter.

[0015] Through the above technical solution, the scraper cleans the filter and scrapes off the impurities attached to the filter to prevent the filter from being blocked.

[0016] Furthermore, a clamping block is provided at one end of each of the two scrapers facing each other, and protrusions are provided at both ends of the clamping block.

[0017] Furthermore, two slots are provided at one end of the shaft body close to the filter screen, and each slot is matched with a corresponding card block.

[0018] With the above technical solution, when the filter needs to be replaced after being used for a period of time, the card blocks at the bottom of the two scrapers are pulled out of the card slots, and then the plug rod of the filter is pulled out of the slot of the fixed frame for replacement.

[0019] Furthermore, a micro pump is provided on the outside of the shell, and both ends of the micro pump are connected with tubes, one of which extends into the interior of the shell and is connected with the fixing ring.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] (1) The present invention can automatically clean the inside of the pump body by cooperating with the micro pump and the nozzle in the cleaning assembly, eliminating the need for the user to manually disassemble the coffee machine housing for cleaning, thereby greatly reducing the user's operating burden and improving ease of use;

[0022] (2) The filter of the utility model can block larger particles of impurities, such as coffee grounds, and prevent these impurities from entering the pump body and causing damage to the impeller and other components, which is beneficial to the subsequent cleaning of the pump body. At the same time, the scraper set on one side of the filter cleans the filter and scrapes off the impurities attached to the filter to prevent the filter from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the shell of the present utility model;

[0025] Figure 3 It is a plan view of the utility model;

[0026] Figure 4 This is a schematic diagram of the connection structure between the filter screen and the fixed frame of the utility model;

[0027] Figure 5 For the utility model Figure 4 A magnified view of the structure in the middle.

[0028] Explanation of the accompanying symbols: 1. Shell; 2. Liquid inlet; 3. Liquid outlet; 4. Motor; 5. Filter; 6. Shaft; 7. Impeller; 8. Fixing ring; 9. Connecting ring; 10. Connecting rod; 11. Scraper; 12. Fixing frame; 13. Nozzle; 14. Micro pump; 15. Tube; 16. Insert rod; 17. Block; 18. Bump; 19. Slot. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] Reference Figure 1-Figure 5 A self-cleaning coffee machine pump structure includes a housing 1, a liquid inlet 2 is formed at one end of the housing 1, a liquid outlet 3 is formed at the end of the housing 1 away from the liquid inlet 2, a filter assembly is provided inside the liquid inlet 2, and a cleaning assembly is provided on one side of the filter assembly;

[0031] The filter assembly includes a filter screen 5, a fixing frame 12 is provided on one side of the filter screen 5, and the fixing frame 12 is connected to the inner wall of the housing 1. A plurality of insertion rods 16 are provided on the side of the filter screen 5 close to the fixing frame 12;

[0032] The cleaning assembly includes a fixing ring 8, which is connected to the inner wall of the shell 1. A connecting ring 9 is provided on the inner side of the fixing ring 8. A connecting rod 10 is provided to connect the fixing ring 8 and the connecting ring 9. The fixing ring 8 and the connecting ring 9 are connected through the connecting rod 10. A plurality of nozzles 13 are provided on the opposite sides of the fixing ring 8 and the connecting ring 9.

[0033] When the liquid enters the housing 1 from the liquid inlet 2, it first passes through the filter 5, which can block larger particles of impurities, such as coffee grounds, to prevent these impurities from entering the pump body and causing damage to components such as the impeller 7, which is beneficial to the subsequent cleaning of the pump body.

[0034] When the coffee machine needs to be cleaned after being used for a period of time, the filter 5 and the inside of the pump body need to be cleaned. The micro pump 14 is started by an external switch. The micro pump 14 delivers the cleaning liquid to the fixed ring 8 through the tube 15. The cleaning liquid then passes from the fixed ring 8 through the connecting rod 10 into the connecting ring 9, and is finally sprayed out from the multiple nozzles 13 on the opposite side of the fixed ring 8 and the connecting ring 9. The multiple nozzles 13 are arranged at an angle and are located between the filter 5 and the impeller 7. This ensures that the cleaning liquid can fully cover the filter 5, the impeller 7 and other parts, and effectively rinse them.

[0035] Through the cooperation of the micro pump 14 and the nozzle 13 in the cleaning component, the inside of the pump body can be automatically cleaned without the user having to manually disassemble the coffee machine shell for cleaning, which greatly reduces the user's operating burden and improves the convenience of use.

[0036] Reference Figure 2-Figure 3 , multiple nozzles 13 are arranged at an angle, a shaft body 6 is provided inside the shell 1, a motor 4 is provided on one side of the shell 1, one end of the shaft body 6 extends through the outside of the shell 1 and is connected to the output end of the motor 4, the outer wall of the shaft body 6 is fixedly connected to the impeller 7, multiple nozzles 13 are located between the filter screen 5 and the impeller 7, one end of the shaft body 6 passes through the filter screen 5 and is connected to two scrapers 11, the two scrapers 11 are used to clean one side of the filter screen 5.

[0037] After the motor 4 is started, its output end drives the shaft 6 to rotate. As the shaft 6 rotates, the impeller 7 fixed to the outer wall also starts to rotate. The function of the impeller 7 is to pressurize the liquid entering from the liquid inlet 2 and transport it to the liquid outlet 3, thereby realizing the liquid pumping function of the coffee machine.

[0038] During the rotation of the shaft 6, the two scrapers 11 connected to one end thereof also rotate. The scrapers 11 come into contact with the filter 5 to clean one side of the filter 5, scraping off impurities attached to the filter 5 to prevent the filter 5 from being blocked.

[0039] Reference Figure 2-Figure 5A slot is provided inside the fixed frame 12, and multiple insertion rods 16 are matched with the corresponding slots respectively. The facing ends of the two scrapers 11 are provided with a block 17, and both ends of the block 17 are provided with a protrusion 18. The end of the shaft body 6 close to the filter screen 5 is provided with two slots 19, and each slot 19 is matched with the corresponding block 17 respectively.

[0040] When the filter 5 needs to be replaced after being used for a period of time, the block 17 at the bottom of the two scrapers 11 is pulled out of the card slot 19, and then the insertion rod 16 of the filter 5 is pulled out of the slot of the fixing frame 12 for replacement.

[0041] During installation, the insertion rod 16 is inserted into the slot, and then the clamping blocks 17 at the bottom of the two scrapers 11 are clamped into the clamping grooves 19 to complete the replacement and installation of the filter screen 5.

[0042] Reference Figure 1-Figure 3 A micro pump 14 is provided on the outside of the housing 1 , and both ends of the micro pump 14 are connected with tubes 15 , one of the tubes 15 extends through the interior of the housing 1 and is connected to the fixing ring 8 .

[0043] Working Principle: When the coffee machine is operating, liquid enters through the liquid inlet 2 at one end of the housing 1 and then passes through the filter 5. The filter 5 blocks larger impurities, such as coffee grounds, from entering the pump body and damaging components such as the impeller 7. This also facilitates subsequent cleaning. As the motor 4 starts, the output of the motor 4 drives the shaft 6 to rotate, and the impeller 7, which is fixed to the outer wall of the shaft 6, also begins to rotate. The impeller 7 pressurizes the liquid entering from the liquid inlet 2 and delivers it to the liquid outlet 3, completing the liquid pumping function of the coffee machine.

[0044] When the coffee machine needs to be cleaned after a period of use, the filter 5 and the interior of the pump body need to be cleaned. An external switch activates the micropump 14, which delivers cleaning liquid through the tube 15 to the fixed ring 8 connected to the inner wall of the housing 1. The cleaning liquid then flows from the fixed ring 8 through the connecting rod 10 into the connecting ring 9, and is finally sprayed out from multiple nozzles 13 on opposite sides of the fixed ring 8 and the connecting ring 9. These nozzles 13 are arranged at an angle and located between the filter 5 and the impeller 7, effectively flushing the filter 5. At the same time, as the shaft 6 rotates, the two scrapers 11 connected to one end of the shaft 6 also rotate. The scrapers 11 contact the filter 5, cleaning one side of the filter 5 and scraping off impurities attached to the filter 5 to prevent clogging.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A self-cleaning coffee machine pump structure, characterized in that: include: A shell (1), wherein a liquid inlet (2) is provided at one end of the shell (1), a liquid outlet (3) is provided at one end of the shell (1) away from the liquid inlet (2), a filter assembly is provided inside the liquid inlet (2), and a cleaning assembly is provided on one side of the filter assembly; A filter assembly comprises a filter screen (5), a fixing frame (12) being provided on one side of the filter screen (5), the fixing frame (12) being connected to the inner wall of the housing (1), and a plurality of insertion rods (16) being provided on a side of the filter screen (5) close to the fixing frame (12); A cleaning assembly comprises a fixing ring (8), wherein the fixing ring (8) is connected to the inner wall of a housing (1), a connecting ring (9) is provided on the inner side of the fixing ring (8), a connecting rod (10) is provided between the fixing ring (8) and the connecting ring (9), the fixing ring (8) and the connecting ring (9) are connected via the connecting rod (10), and a plurality of nozzles (13) are provided on opposite sides of the fixing ring (8) and the connecting ring (9).

2. The self-cleaning coffee machine pump structure according to claim 1, characterized in that: The plurality of nozzles (13) are all arranged at an angle, a shaft (6) is provided inside the shell (1), a motor (4) is provided on one side of the shell (1), and one end of the shaft (6) extends through the outside of the shell (1) and is connected to the output end of the motor (4).

3. The self-cleaning coffee machine pump structure according to claim 2, characterized in that: The outer wall of the shaft (6) is fixedly connected to an impeller (7), and the plurality of nozzles (13) are located between the filter screen (5) and the impeller (7).

4. The self-cleaning coffee machine pump structure according to claim 1, characterized in that: Slots are provided inside the fixing frame (12), and the plurality of insertion rods (16) are matched with corresponding slots respectively.

5. The self-cleaning coffee machine pump structure according to claim 2, characterized in that: One end of the shaft (6) passes through the filter screen (5) and is connected to two scrapers (11), and the two scrapers (11) are used to clean one side of the filter screen (5).

6. The self-cleaning coffee machine pump structure according to claim 5, characterized in that: A clamping block (17) is provided at one end of each of the two scrapers (11) facing each other, and protrusions (18) are provided at both ends of the clamping block (17).

7. The self-cleaning coffee machine pump structure according to claim 2, characterized in that: Two slots (19) are provided at one end of the shaft (6) close to the filter screen (5), and each slot (19) matches a corresponding block (17).

8. The self-cleaning coffee machine pump structure according to claim 1, characterized in that: A micro pump (14) is provided on the outside of the housing (1), and both ends of the micro pump (14) are connected with tubes (15), one of the tubes (15) extending through the interior of the housing (1) and communicating with the fixing ring (8).

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