Kettle lid component and coffee machine

Abstract

The utility model relates to the field of coffee making equipment, and provides a pot lid component and a coffee machine. The kettle cover component comprises a kettle cover body, a pump cylinder, a pump rod assembly and an elastic piece. A first mounting part and a second mounting part are formed on the kettle cover body, the pump cylinder is connected with the kettle cover body, a pump cavity is formed in the pump cylinder, and the pump cylinder is suitable for being communicated with an external water source. The first end of the pump rod assembly penetrates through the first mounting part, the second end of the pump rod assembly is arranged in the pump cavity in a sliding mode, and the second end of the pump rod assembly is connected with the pump cavity in a sealed mode so as to separate the pump cavity from the second mounting part. The pump rod assembly is sleeved with the elastic piece, the first end of the elastic piece is arranged on the second installation part, and the second end of the elastic piece is connected with the first end of the pump rod assembly. According to the kettle cover component, the elastic piece can be effectively prevented from being affected by brewing water, it is guaranteed that the working condition of the elastic piece is not affected, the reliability of the elastic piece is effectively improved, and the use experience feeling of a user is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of coffee making equipment, in particular to a kettle lid component and a coffee machine. Background Art

[0002] The kettle lid of a small manual high-pressure coffee machine is usually provided with a pressurized pump water structure, and a return spring is arranged in the pressurized pump water structure so that the pump rod can automatically return after being pressed. However, in the existing pressurized pump water structure of the kettle lid of a coffee machine, the return spring is arranged in the pump cylinder. The return spring is limited by the size of the pump cylinder, and the return spring can be directly in contact with water, resulting in poor working conditions of the return spring. During long-term operation, the reliability of the return spring is likely to be reduced, or the return spring is broken, affecting the water pumping function of the kettle lid and reducing the user experience. Summary of the Utility Model

[0003] In order to solve the defects of the prior art, the utility model provides a kettle lid component and a coffee machine, which can effectively avoid the influence of the flushing water on the elastic member, ensure that the working conditions of the elastic member are not affected, effectively improve the reliability of the elastic member, and enhance the user experience.

[0004] In order to solve the above technical problems, the utility model provides a kettle lid component, including:

[0005] A kettle lid body, the kettle lid body is formed with a first installation part and a second installation part;

[0006] A pump cylinder, connected to the kettle lid body, the pump cylinder is formed with a pump cavity, and the pump cylinder is adapted to communicate with an external water source;

[0007] A pump rod assembly, the first end of the pump rod assembly penetrates through the first installation part, the second end of the pump rod assembly is slidably arranged in the pump cavity, and the second end of the pump rod assembly is hermetically connected to the pump cavity to separate the pump cavity from the second installation part;

[0008] An elastic member, sleeved on the pump rod assembly, the first end of the elastic member is arranged in the second installation part, and the second end of the elastic member is connected to the first end of the pump rod assembly.

[0009] Wherein, the pump rod assembly includes:

[0010] A pump rod, the second end of the elastic member abuts against the first end of the pump rod, and the second end of the pump rod is slidably arranged in the pump cavity;

[0011] A sealing ring, the inner ring of the sealing ring surrounds the second end of the pump rod, and the outer ring of the sealing ring abuts against the inner wall surface of the pump cylinder.

[0012] Wherein, the pump rod assembly further includes:

[0013] The piston head is arranged at the second end of the pump rod, the outer diameter of the piston head is equal to the inner diameter of the pump barrel, the piston head is formed with a sealing groove, and the inner circle of the sealing ring is arranged around the sealing groove.

[0014] Wherein, the pot cover body is provided with a first limiting groove and a second limiting groove, and the first limiting groove and the second limiting groove form a predetermined angle;

[0015] The pump rod is provided with a limiting portion, the limiting portion is located in the pump cavity, the width of the limiting portion is W1, the width of the first limiting groove is W2, the width of the second limiting groove is W3, W1 is smaller than W2, and W1 is larger than W3.

[0016] The second mounting portion is formed with a first step surface, and the first end of the elastic member abuts against the first step surface; the first end of the pump rod is formed with a second step surface, and the second end of the elastic member is fixed to the second step surface.

[0017] Wherein, a protective sleeve is arranged between the pump rod assembly and the pot cover body, the protective sleeve is inserted into the second mounting portion, and the protective sleeve is sleeved on the pump rod and the elastic member;

[0018] A fixing boss is formed on the inner wall surface of the protective sleeve, the second step surface abuts against the fixing boss, and the second end of the elastic member abuts against a side of the fixing boss away from the second step surface.

[0019] Among them, it also includes:

[0020] A pump plug is arranged at the lower end of the pump barrel, the pump plug is provided with a communication hole, the communication hole is communicated with the pump chamber, and the outer side surface of the pump plug is sealed and connected with the inner side surface of the pump barrel;

[0021] The pump barrel is formed with a water inlet and a water outlet, and the pump plug is provided with a first one-way valve core and a second one-way valve core, the first one-way valve core is provided at the water inlet, the first one-way valve core is used to open or close the water inlet, and the first one-way valve core can only open the direction from the water inlet to the communicating hole;

[0022] The second one-way valve core is arranged at the water outlet, and the second one-way valve core is used to open or close the water outlet, and the second one-way valve core can only open the direction from the connecting hole to the water outlet.

[0023] Wherein, at least one sealing ring is arranged around the outer side of the pump plug, and the outer ring of the sealing ring abuts against the inner wall surface of the pump barrel.

[0024] Among them, the pump plug is provided with a side hole, the side hole is arranged opposite to the water inlet, the side hole is provided with a sealing plug, and the sealing plug abuts against the first one-way valve core;

[0025] One end of the pump plug facing the water outlet is provided with a fixing hole, the fixing hole is provided with an elastic fixing member, and the second one-way valve core is installed in the fixing hole through the elastic fixing member.

[0026] Correspondingly, the present invention also provides a coffee machine, which includes a kettle body and the kettle lid component described in any one of the above, the kettle body is detachably connected to the kettle lid body, a powder tank and a water tank are arranged inside the kettle body, the powder tank is located below the pump cylinder, and the water tank is located below the powder tank.

[0027] Implementing the present invention has the following beneficial effects:

[0028] According to the kettle lid component provided by the embodiment of the present invention, after the elastic member is installed in the second installation part of the kettle lid body and the second end of the pump rod assembly is arranged in the pump cavity, by sealingly connecting the second end of the pump rod assembly with the pump cavity to separate the pump cavity and the second installation part. When brewing water is input into the inner cavity of the pump cylinder, the brewing water is blocked by the pump rod assembly and cannot enter the second installation part from the pump cavity. Furthermore, the elastic member in the second installation part will not be affected by the brewing water, so as to ensure that the working condition of the elastic member will not be affected. At the same time, the size specification of the elastic member installed in the second installation part is not limited by the size of the pump cavity, so as to ensure that the reliability of the elastic member is not affected when the kettle lid component pumps water for a long time, effectively ensuring the water pumping function of the kettle lid and enhancing the user experience. Description of the Drawings

[0029] Figure 1 is a three-dimensional structural schematic diagram of the kettle lid component provided by the embodiment of the present invention;

[0030] Figure 2 is one of the cross-sectional structural schematic diagrams of the kettle lid component provided by the embodiment of the present invention, where the pump rod is located in the pump cavity;

[0031] Figure 3 is the second cross-sectional structural schematic diagram of the kettle lid component provided by the embodiment of the present invention, where the pump rod extends out of the pump cavity;

[0032] Figure 4 is Figure 2 the enlarged structural schematic diagram at A in

[0033] Figure 5 is the exploded structural schematic diagram of the kettle lid component provided by the embodiment of the present invention;

[0034] Figure 6It is a three-dimensional structural schematic diagram of the kettle lid body provided by an embodiment of the present utility model;

[0035] Figure 7 It is a three-dimensional structural schematic diagram of the pump rod provided by an embodiment of the present utility model;

[0036] Figure 8 It is one of the cross-sectional structural schematic diagrams of the coffee machine provided by an embodiment of the present utility model, wherein the pump rod is located in the pump chamber;

[0037] Figure 9 It is the second cross-sectional structural schematic diagram of the coffee machine provided by an embodiment of the present utility model, wherein the pump rod extends out of the pump chamber. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in the present utility model are only based on the accompanying drawings of the present utility model, and they do not specifically limit the present utility model.

[0039] The first aspect of the present utility model provides a kettle lid component, which can ensure that an elastic member 4 with a reset function is installed outside the pump chamber 21 of the pump cylinder 2, effectively avoiding the influence of the flushing water on the elastic member 4, ensuring that the working condition of the elastic member 4 is not affected, effectively improving the reliability of the elastic member 4, and enhancing the user experience.

[0040] In an embodiment of the present utility model, as Figures 1 to 3 shown, the kettle lid component includes a kettle lid body 1, a pump cylinder 2, a pump rod assembly 3, and an elastic member 4. The kettle lid body 1 is formed with a first mounting portion 11 and a second mounting portion 12. The pump cylinder 2 is connected to the kettle lid body 1. The pump cylinder 2 is formed with a pump chamber 21, and the pump cylinder 2 is adapted to be connected to an external water source. The first end of the pump rod assembly 3 passes through the first mounting portion 11, the second end of the pump rod assembly 3 is slidably disposed in the pump chamber 21, and the second end of the pump rod assembly 3 is sealingly connected to the pump chamber 21 to separate the pump chamber 21 from the second mounting portion 12. The elastic member 4 is sleeved on the pump rod assembly 3, the first end of the elastic member 4 is disposed on the second mounting portion 12, and the second end of the elastic member 4 is connected to the first end of the pump rod assembly 3.

[0041] According to the lid component provided by the embodiments of the present utility model, after installing the elastic member 4 on the second installation portion 12 of the lid body 1 and setting the second end of the pump rod assembly 3 in the pump chamber 21, by sealingly connecting the second end of the pump rod assembly 3 with the pump chamber 21 to separate the pump chamber 21 and the second installation portion 12. When brewing water is input into the inner cavity of the pump cylinder 2, the brewing water is blocked by the pump rod assembly 3 and cannot enter the second installation portion 12 from the pump chamber 21. Furthermore, the elastic member 4 in the second installation portion 12 will not be affected by the brewing water, so as to ensure that the working condition of the elastic member 4 will not be affected. At the same time, the size specification of the elastic member 4 installed on the second installation portion 12 will not be restricted by the size of the pump chamber 21, thus ensuring that when the lid component pumps water for a long time, the reliability of the elastic member 4 is not affected, effectively ensuring the water pumping function of the lid and enhancing the user experience.

[0042] Among them, as Figure 2 and Figure 3 shown, a coaxial inner cylinder and outer cylinder are formed at the center of the lid body 1. The first installation portion 11 is an inner through-hole structure of the inner cylinder. The upper part of the pump cylinder 2 is detachably connected to the first installation portion 11 through threads. After the second end of the pump rod assembly 3 passes through the inner through-hole structure of the inner cylinder, it is slidably connected to the inner wall surface of the pump chamber 21. The second installation portion 12 is an installation space formed by enclosing the outer side wall of the inner cylinder and the inner side wall of the outer cylinder, and the first end of the elastic member 4 abuts against the installation space.

[0043] The bottom wall surface of the second installation portion 12 is lower than the upper wall surface of the inner cylinder, so that the brewing water in the inner cavity of the pump cylinder 2 cannot flow over the upper wall surface of the inner cylinder into the second installation portion 12, further ensuring that the elastic member 4 located in the second installation portion 12 will not contact the brewing water in the pump cylinder 2 and ensuring that the working condition of the elastic member 4 is not affected.

[0044] It should be noted here that threads are formed on the outer wall surface of the upper end of the pump cylinder 2, and threads are also formed on the inner wall surface of the inner through-hole structure of the first installation portion 11. The pump cylinder 2 is threadedly connected with the inner through-hole structure of the first installation portion 11, and the pump chamber 21 is communicated with the inner through-hole to ensure that after the pump rod 31 passes through the inner through-hole structure of the first installation portion 11, it can be directly inserted into the pump chamber 21.

[0045] In the implementation of the present utility model, as Figure 2 and Figure 3 shown, the pump rod assembly 3 includes a pump rod 31 and a sealing ring 32. The second end of the elastic member 4 abuts against the first end of the pump rod 31, and the second end of the pump rod 31 is slidably disposed in the pump chamber 21. The inner ring of the sealing ring 32 surrounds the second end of the pump rod 31, and the outer ring of the sealing ring 32 abuts against the inner wall surface of the pump cylinder 2.

[0046] It can be understood that after the pump rod 31 is arranged in the pump chamber 21, by surrounding the second end of the pump rod 31 with a sealing ring 32 and abutting the outer ring of the sealing ring 32 against the inner wall surface of the pump barrel 2, when the pump rod 31 slides in the pump chamber 21 for pumping water, the sealing ring 32 can closely adhere to the second end of the pump rod 31 and the inner wall surface of the pump barrel 2 to maintain the sealing effect between the pump chamber 21 and the second mounting portion 12 when the pump rod 31 moves, thereby ensuring that the brewing water in the pump chamber 21 cannot enter the second mounting portion 12 from the pump chamber 21, and further ensuring the working condition of the elastic member 4.

[0047] Furthermore, as Figure 2 and Figure 3 shown, the pump rod assembly 3 further includes a piston head 33. The piston head 33 is arranged at the second end of the pump rod 31. The outer diameter of the piston head 33 is equal to the inner diameter of the pump barrel 2. The piston head 33 is formed with a sealing groove, and the inner ring of the sealing ring 32 is surrounded by the sealing groove.

[0048] It can be understood that when the pump rod 31 drives the piston head 33 to slide in the pump chamber 21, since the piston head 33 is arranged at the second end of the pump rod 31 and the outer diameter of the piston head 33 is equal to the inner diameter of the pump barrel 2, it makes the piston head 33 form a tight contact with the inner wall of the pump barrel 2, so that the sealing ring 32 and the piston head 33 form a double seal in the pump chamber 21, further enhancing the sealing effect between the pump chamber 21 and the second mounting portion 12 when the pump rod 31 moves.

[0049] In addition, since the outer diameter of the piston head 33 is equal to the inner diameter of the pump barrel 2, when the pump rod 31 drives the piston head 33 to slide in the pump chamber 21, the piston head 33 can effectively limit the sliding direction of the pump rod 31, ensure that the pump rod 31 can slide along the inner wall surface of the pump chamber 21, avoid the second end of the pump rod 31 from shaking inside the pump chamber 21, and further improve the sliding stability of the pump rod 31.

[0050] It should be noted here that for the convenience of repairing and replacing the piston head 33, the piston head 33 is detachably connected to the second end of the pump rod 31. Specifically, as Figure 2 and Figure 7 shown, a snap hole 331 is formed at the upper end of the piston head 33, and a snap 313 is formed at the second end of the pump rod 31. After the piston head 33 is sleeved on the second end of the pump rod 31, the protrusion is snap-fitted into the snap hole 331 to realize the snap connection between the piston head 33 and the second end of the pump rod 31, so that the piston head 33 can slide inside the pump chamber 21 following the pump rod 31.

[0051] Of course, the detachable connection manner between the piston head 33 and the pump rod 31 is not limited to the snap connection through the protrusion and the snap hole 331. Threaded holes can also be provided at the end of the piston head 33 and the end of the second end of the pump rod 31, and the piston head 33 and the pump rod 31 can be threadedly connected through bolts.

[0052] In addition, when the piston head 33 does not need to be replaced, the piston head 33 and the pump rod 31 can also be integrally formed.

[0053] In an embodiment of the present utility model, to control the pump rod 31 to extend out of or retract into the pump chamber 21, as Figures 5 to 7 shown, the kettle lid body 1 is provided with a first limiting groove 111 and a second limiting groove 112, and the first limiting groove 111 and the second limiting groove 112 form a predetermined angle. The pump rod 31 is provided with a limiting portion 311, and the limiting portion 311 is located in the pump chamber 21. The width of the limiting portion 311 is W1, the width of the first limiting groove 111 is W2, and the second limiting groove 112 is W3. W1 is less than W2 and W1 is greater than W3.

[0054] It can be understood that since the width W1 of the limiting portion 311 of the pump rod 31 is less than the width W2 of the first limiting groove 111 of the kettle lid body 1, and the width W1 of the limiting portion 311 is greater than the width W3 of the second limiting groove 112 of the kettle lid body 1, when the pump rod 31 slides along the pump chamber 21, the limiting portion 311 of the pump rod 31 can pass through the first limiting groove 111 but cannot pass through the second limiting groove 112.

[0055] Furthermore, when the kettle lid component needs to perform a water pumping operation, the first end of the pump rod 31 can be controlled to rotate a certain angle so that the limiting portion 311 of the pump rod 31 is located below the first limiting groove 111 of the kettle lid body 1, so that the pump rod 31 can extend out of the pump chamber 21 under the action of the elastic member 4. When the second end of the pump rod 31 and the pump chamber 21 at the bottom of the pump cylinder 2 are filled with brewing water, the user can press the first end of the pump rod 31 to make the pump rod 31 press the brewing water in the pump chamber 21 towards the water outlet 24 at the bottom of the pump cylinder 2, thereby completing the water pumping operation of the pump rod 31.

[0056] When no water pumping operation is required, the pump rod 31 can be pressed down, and after the pump rod 31 is retracted into the pump chamber 21, the first end of the pump rod 31 is rotated a certain angle so that the limiting portion 311 of the pump rod 31 is located below the second limiting groove 112 of the kettle lid body 1, thereby realizing the fixation of the pump rod 31 in the pump chamber 21 through the cooperation of the limiting portion 311 and the second limiting groove 112, reducing the space occupied by the kettle lid component, and thus facilitating the storage of the kettle lid component.

[0057] Specifically, as Figure 6 shown, the first limiting groove 111 and the second limiting groove 112 are formed in the first mounting portion 11, and the predetermined angle between the first limiting groove 111 and the second limiting groove 112 is 90°, so that a cross-shaped groove structure is formed between the first limiting groove 111 and the second limiting groove 112, so as to simplify the structure of the kettle lid body 1 and simplify the forming process of the kettle lid body 1.

[0058] As Figure 7As shown, the limiting portion 311 is a rib structure protruding from the side wall of the pump rod 31. By cooperating between the rib structure and the cross-shaped groove structure, the rib structure is aligned with the first limiting groove 111, so that the pump rod 31 can be extended out of the pump cavity 21, and the rib structure is pressed into the pump cavity 21 and aligned with the second limiting groove 112, so that the pump rod 31 can be fixed in the pump cavity 21, thereby forming a limit for the pump rod 31.

[0059] It should be noted here that when the pump rod 31 extends from the first limiting groove 111, the upper end of the piston head 33 can abut against the bottom of the first limiting groove 111 and the second limiting groove 112 to limit the extending length of the pump rod 31, thereby preventing the pump rod 31 from detaching from the pump chamber 21, thereby ensuring the function of the pump rod 31.

[0060] In this embodiment, Figure 2 and Figure 3 As shown, the second mounting portion 12 is formed with a first step surface 121, and the first end of the elastic member 4 abuts against the first step surface 121. The first end of the pump rod 31 is formed with a second step surface 312, and the second end of the elastic member 4 is fixed to the second step surface 312.

[0061] It can be understood that by fixing the elastic member 4 between the first step surface 121 and the second step surface 312, the elastic member 4 can be stably installed in the second mounting portion 12 by utilizing the mutual cooperation between the first step surface 121 and the second step surface 312, thereby effectively preventing the elastic member 4 from contacting the flushing water in the pump chamber 21 driven by the pump rod 31, thereby ensuring the working state of the elastic member 4.

[0062] Specifically, a button platform is provided at the first end of the pump rod 31, and the button platform is perpendicular to the rod body direction of the pump rod 31. When in use, the user can press the button platform to control the rotation of the pump rod 31. A convex column is formed on the side of the button platform facing the second end of the pump rod 31, the second step surface 312 is the end surface of the boss, and the first step surface 121 is an annular boss formed on the outer side wall of the inner cylinder. The outer diameters of the convex column and the annular boss are equal to ensure that the elastic member 4 is limited and the elastic member 4 is fixed to the second mounting portion 12.

[0063] Furthermore, if Figure 2 , Figure 3 and Figure 5 As shown, a protective sleeve 34 is provided between the pump rod assembly 3 and the pot cover body 1, the protective sleeve 34 is inserted into the second mounting portion 12, and the protective sleeve 34 is sleeved on the pump rod 31 and the elastic member 4. A fixing boss 341 is formed on the inner wall surface of the protective sleeve 34, the second step surface 312 abuts against the fixing boss 341, and the second end of the elastic member 4 abuts against the side of the fixing boss 341 away from the second step surface 312.

[0064] It can be understood that by providing a protective sleeve 34 between the pump rod assembly 3 and the kettle lid body 1, and sleeving the protective sleeve 34 on the pump rod 31 and the elastic member 4, the protective sleeve 34 physically protects the elastic member 4, preventing the elastic member 4 from being directly exposed to the external environment when the pump rod 31 extends, so as to prevent foreign objects in the external environment from entering the second installation part 12, and avoiding damage to the elastic member 4 caused by obstruction of foreign objects during the telescopic process of the elastic member 4, thereby prolonging the overall service life of the elastic member 4 and the kettle lid components. In addition, the protective sleeve 34 can also serve as a decorative element of the kettle lid body 1, enhancing the overall aesthetics of the product.

[0065] Specifically, as Figure 2 and Figure 5 shown, the protective sleeve 34 presents a sleeve structure, and a fixing boss 341 is formed on the inner wall surface of the upper end of the protective sleeve 34. When the pump rod 31 is retracted into the pump chamber 21, the fixing boss 341 abuts against the upper wall surface of the first installation part 11 to limit the elastic member 4 between the first step surface 121 and the upper wall surface of the first installation part 11.

[0066] In another embodiment, a limiting rib is formed on the upper wall surface of the first installation part 11, and a limiting boss is formed at the lower end of the protective sleeve 34. During the process of the protective sleeve 34 extending out with the pump rod 31, the limiting boss at the lower end of the protective sleeve 34 can abut against the limiting rib of the first installation part 11, and then cooperate with the piston head 33 to jointly limit the extending length of the pump rod 31, ensuring that the pump rod 31 can slide in the pump chamber 21.

[0067] In the embodiment of the present utility model, as Figures 2 to 4 shown, the kettle lid components further include a pump plug 22. The pump plug 22 is arranged at the lower end of the pump cylinder 2. The pump plug 22 is provided with a communication hole 221, and the communication hole 221 is communicated with the pump chamber 21. The outer side surface of the pump plug 22 is sealingly connected with the inner side surface of the pump cylinder 2.

[0068] The pump cylinder 2 is formed with a water inlet 23 and a water outlet 24. The pump plug 22 is provided with a first one-way valve core 222 and a second one-way valve core 223. The first one-way valve core 222 is arranged at the water inlet 23. The first one-way valve core 222 is used to conduct or cut off the water inlet 23, and the first one-way valve core 222 can only conduct in the direction from the water inlet 23 to the communication hole 221;

[0069] The second one-way valve core 223 is arranged at the water outlet 24. The second one-way valve core 223 is used to conduct or cut off the water outlet 24, and the second one-way valve core 223 can only conduct in the direction from the communication hole 221 to the water outlet 24.

[0070] It can be understood that the water inlet 23 can be connected to an external water source. When the pump rod assembly 3 extends out of the pump chamber 21, the brewing water from the external water source is input into the water inlet 23 under atmospheric pressure, and under the action of atmospheric pressure, the first one-way valve core 222 is pushed, so that the first one-way valve core 222 conducts the water inlet hole and the communication hole 221, enabling the brewing water to be input into the pump chamber 21 from the communication hole 221 and filling the space between the second end of the pump rod assembly 3 and the upper end of the pump plug 22. Since the pump plug 22 is hermetically connected to the pump cylinder 2, the brewing water will not leak from the pump plug 22 after being input into the pump chamber 21.

[0071] When the pump rod assembly 3 is pressed down, the pump rod assembly 3 transmits the pressure to the brewing water, and the generated water pressure pushes the first one-way valve core 222 to block the water inlet 23, and at the same time pushes the second one-way valve core 223 to conduct the communication hole 221 and the water outlet 24, so that the brewing water is pressed out from the water outlet hole of the pump cylinder 2, so as to use the brewing water to brew the coffee powder under the lid part.

[0072] In this embodiment, the pump plug 22 and the pump cylinder 2 are detachably connected to fix the pump plug 22 in the pump cylinder 2 and facilitate subsequent maintenance and cleaning operations on the pump plug 22. Specifically, a thread is formed on the outer side surface of the upper part of the pump plug 22, and a thread is formed on the inner wall surface of the lower end of the pump cylinder 2, and a threaded connection is formed between the pump plug 22 and the pump cylinder 2.

[0073] Specifically, to ensure the sealed connection between the outer side surface of the pump plug 22 and the inner side surface of the pump cylinder 2, as Figure 4 shown, at least one sealing ring 224 is arranged around the outer side surface of the pump plug 22, and the outer ring of the sealing ring 224 abuts against the inner wall surface of the pump cylinder 2. Further, after the pump cylinder 2 is filled with brewing water, since the sealing ring 224 is arranged around the outer side surface of the pump plug 22, the sealing ring 224 can closely adhere to the outer side surface of the pump plug 22 and the inner wall surface of the pump cylinder 2, thereby maintaining the sealing effect between the pump plug 22 and the pump cylinder 2, ensuring that the brewing water in the pump cylinder 2 cannot leak from the position of the pump plug 22, ensuring that the amount of brewing water can be fully used for the water required in the brewing process, and avoiding waste of brewing water.

[0074] Furthermore, as Figure 4 shown, the pump plug 22 is provided with a side hole, the side hole is arranged opposite to the water inlet 23, the side hole is provided with a sealing plug 225, and the wall surface of the side hole is in sealed contact with the sealing plug 225. The sealing plug 225 is used to abut the first one-way valve against the communication hole 221, thereby controlling the movement distance of the first one-way valve core 222 by using the sealing plug 225 to ensure that the first one-way valve core 222 can conduct the water inlet 23 and the communication hole 221. At the same time, when it is necessary to press out the brewing water in the pump chamber 21, the first one-way valve core 222 can move towards the water inlet 23 to block the water inlet 23 and ensure the flow direction of the brewing water.

[0075] Among them, the sealing plug 225 can be a silicone plug. When brewing water is input from the water inlet 23, the first one-way valve core 222 can squeeze the sealing plug 225 under the action of water pressure to conduct the water inlet 23 and the communication hole 221; when there is no brewing water input from the water inlet 23, under the rebounding action of the silicone plug, the first one-way valve core 222 is abutted against the water inlet 23 to cut off the water inlet 23.

[0076] In another embodiment, a spring is installed between the inner wall surface of the pump barrel 2 and the side wall of the sealing plug 225 facing away from the first one-way valve core 222, so as to utilize the elastic performance of the spring to make the first one-way valve core 222 conduct or cut off the water inlet 23 and the communication hole 221.

[0077] As Figure 4 shown, a fixing hole is provided at one end of the pump plug 22 facing the water outlet 24, and an elastic fixing member 226 is provided in the fixing hole. The second one-way valve core 223 is installed in the fixing hole through the elastic fixing member 226. Furthermore, when it is necessary to pump out the brewing water, under the action of water pressure, the second one-way valve core 223 squeezes the elastic fixing member 226, so that the second one-way valve core 223 conducts the communication hole 221 and the water outlet 24; when the brewing water is completely pumped out of the pump chamber 21, the second one-way valve core 223 loses the extrusion of water pressure, and under the rebounding action of the elastic fixing member 226, the second one-way valve core 223 is abutted against the fixing hole to cut off the communication hole 221 and the water outlet 24.

[0078] Among them, the shape of the fixing hole needs to be set according to the shape of the second one-way valve core 223. For example, when the second one-way valve core 223 is conical, the fixing hole needs to be set as a conical stepped hole. The elastic fixing member 226 is preferably an elastic retaining ring, so as to fix the elastic retaining ring in the fixing hole by using the arch structure of the elastic retaining ring and fix the second one-way valve core 223 between the fixing hole and the elastic retaining ring.

[0079] The second aspect of the present utility model provides a coffee machine. As Figure 8 and Figure 9 shown, the coffee machine includes a kettle body 5 and the kettle lid component described in any one of the above. The kettle body 5 is detachably connected to the kettle lid body 1; a powder tank 51 and a water tank 52 are arranged inside the kettle body 5. The powder tank 51 is located below the pump barrel 2, and the water tank 52 is located below the powder tank 51. Furthermore, the brewing water pumped out by the kettle lid component can be input into the powder tank 51 to brew the coffee powder in the powder tank 51, and the obtained coffee flows from the powder tank 51 into the lower water tank 52 for the user to take.

[0080] Specifically, an external thread is formed on the outer wall surface of the powder tank 51, and an internal thread is formed on the inner wall surface of the kettle body 5. A threaded connection is formed between the powder tank 51 and the kettle body 5. A threaded connection is also formed between the upper end of the kettle body 5 and the kettle lid body 1.

[0081] Next, in conjunction withFigures 1 to 9 Describe the working process of the coffee machine of the present utility model.

[0082] After connecting an external water source to the water inlet 23 below the pump cylinder 2, rotate the pump rod 31 by a certain angle so that the pump rod 31 extends from the pump chamber 21 under the action of the elastic member 4. The brewing water of the external water source enters the water inlet 23 under the action of atmospheric pressure and pushes open the first single valve core. The brewing water is input into the pump chamber 21 between the piston head 33 and the pump plug 22. Subsequently, press down the pump rod 31. The pump rod 31 transmits the pressure to the brewing water. The water pressure generated by the brewing water pushes the first one-way valve core 222 to cut off the water inlet 23, and at the same time pushes the second one-way valve core 223 to conduct the communication hole 221 and the water outlet 24. Thus, the brewing water is pressed out from the water outlet hole of the pump cylinder 2 and enters the powder tank 51 below the pump cylinder 2 to brew the coffee powder in the powder tank 51, and the obtained coffee flows into the water tank 52 below the powder tank 51 for the user to take.

[0083] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A pot cover component, characterized in that: include: A pot cover body, wherein the pot cover body is formed with a first mounting portion and a second mounting portion; A pump barrel connected to the pot cover body, the pump barrel is formed with a pump cavity, and the pump barrel is suitable for communicating with an external water source; A pump rod assembly, wherein a first end of the pump rod assembly is inserted into the first mounting portion, a second end of the pump rod assembly is slidably disposed in the pump cavity, and the second end of the pump rod assembly is sealedly connected to the pump cavity to separate the pump cavity from the second mounting portion; An elastic member is sleeved on the pump rod assembly, a first end of the elastic member is arranged on the second mounting portion, and a second end of the elastic member is connected to the first end of the pump rod assembly.

2. The pot cover component according to claim 1, characterized in that , the pump rod assembly comprises: A pump rod, wherein the second end of the elastic member abuts against the first end of the pump rod, and the second end of the pump rod is slidably disposed in the pump chamber; A sealing ring, wherein the inner ring of the sealing ring is arranged around the second end of the pump rod, and the outer ring of the sealing ring abuts against the inner wall surface of the pump barrel.

3. The pot cover component according to claim 2, characterized in that: The pump rod assembly also includes: The piston head is arranged at the second end of the pump rod, the outer diameter of the piston head is equal to the inner diameter of the pump barrel, the piston head is formed with a sealing groove, and the inner circle of the sealing ring is arranged around the sealing groove.

4. The pot cover component according to claim 2, characterized in that: The pot cover body is provided with a first limiting groove and a second limiting groove, and the first limiting groove and the second limiting groove form a predetermined angle; The pump rod is provided with a limiting portion, the limiting portion is located in the pump cavity, the width of the limiting portion is W1, the width of the first limiting groove is W2, the width of the second limiting groove is W3, W1 is smaller than W2, and W1 is larger than W3.

5. The pot cover component according to claim 2, characterized in that: The second mounting portion is formed with a first step surface, and the first end of the elastic member abuts against the first step surface; the first end of the pump rod is formed with a second step surface, and the second end of the elastic member is fixed to the second step surface.

6. The pot cover component according to claim 5, characterized in that: A protective sleeve is provided between the pump rod assembly and the pot cover body, the protective sleeve is inserted into the second mounting portion, and the protective sleeve is sleeved on the pump rod and the elastic member; A fixing boss is formed on the inner wall surface of the protective sleeve, the second step surface abuts against the fixing boss, and the second end of the elastic member abuts against a side of the fixing boss away from the second step surface.

7. A pot cover component according to any one of claims 1 to 6, characterized in that: Also includes: A pump plug is arranged at the lower end of the pump barrel, the pump plug is provided with a communication hole, the communication hole is communicated with the pump chamber, and the outer side surface of the pump plug is sealed and connected with the inner side surface of the pump barrel; The pump barrel is formed with a water inlet and a water outlet, and the pump plug is provided with a first one-way valve core and a second one-way valve core, the first one-way valve core is provided at the water inlet, the first one-way valve core is used to open or close the water inlet, and the first one-way valve core can only open the direction from the water inlet to the communicating hole; The second one-way valve core is arranged at the water outlet, and the second one-way valve core is used to open or close the water outlet, and the second one-way valve core can only open the direction from the connecting hole to the water outlet.

8. The pot cover component according to claim 7, characterized in that: At least one sealing ring is arranged around the outer side of the pump plug, and the outer ring of the sealing ring abuts against the inner wall surface of the pump barrel.

9. The pot cover component according to claim 7, characterized in that: The pump plug is provided with a side hole, the side hole is arranged opposite to the water inlet, the side hole is provided with a sealing block, and the sealing block abuts against the first one-way valve core; A fixing hole is provided at one end of the pump plug facing the water outlet, and an elastic fixing piece is provided at the fixing hole. The second one-way valve core is installed at the fixing hole through the elastic fixing piece.

10. A coffee machine, characterized in that: The coffee machine comprises a pot body and a pot cover component according to any one of claims 1 to 9, wherein the pot body is detachably connected to the pot cover body, and a powder tank and a water tank are provided inside the pot body, wherein the powder tank is located below the pump barrel, and the water tank is located below the powder tank.

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