Nitrogen coffee machine

Abstract

The invention relates to the technical field of beverage equipment, and discloses a nitrogen coffee maker which comprises a box body, an air pump and a fixing plate are arranged in the box body, a fixing block and a positioning block are arranged on the fixing plate, a filter is arranged on the positioning block, an elbow joint is fixed on the fixing block, the air pump is connected with the elbow joint through a pipeline, and the air pump is connected with the elbow joint through a pipeline. A sealing joint is arranged between the elbow joint and the filter, the elbow joint and the filter are connected together through the sealing joint, a replacement hole is formed in the box body, a sealing plate is arranged in the replacement hole, and a connecting piece for fixedly connecting the sealing plate with the box body is arranged on the sealing plate; the problems that when a filter in an existing nitrogen coffee machine is replaced, a machine shell or a complex internal structure needs to be disassembled, operation is tedious and time-consuming, the maintenance difficulty is increased, accidental damage to the machine in the operation process of a user is possibly caused, replacement time is long, operation is difficult, and the replacement efficiency is high are effectively solved. And daily maintenance and quick response of the user are not facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of beverage equipment, and in particular to a nitrogen coffee machine. Background Art

[0002] With the popularization of coffee culture and the continuous improvement of consumers' requirements for coffee quality, nitrogen coffee machines, as a device that can produce high-quality coffee drinks with rich and delicate foam, have been widely welcomed by the market. Nitrogen coffee machines create a unique taste and flavor by injecting nitrogen into coffee, bringing consumers a new coffee experience.

[0003] In the design and manufacturing process of nitrogen coffee machines, the air pump is a key component, which is responsible for extracting air and providing power for the subsequent nitrogen injection process. However, in order to ensure the operating efficiency of the coffee machine and the quality of the coffee, the air pump needs to filter the air through a filter when extracting air to remove impurities and pollutants. This can not only extend the service life of the air pump, but also prevent impurities from entering the coffee machine and affecting the taste and quality of the coffee.

[0004] However, existing nitrogen coffee machines have some problems with filter maintenance. Specifically, after a period of use, the filter will accumulate a certain amount of impurities and contaminants, resulting in a decrease in filtration efficiency and even possible failure of the coffee machine. Therefore, regularly removing the filter for maintenance or replacement is a necessary measure to maintain the normal operation of the coffee machine and the quality of the coffee. In the prior art, the filter of a nitrogen coffee machine is often fixedly installed inside the machine, which causes many inconveniences in filter maintenance. When replacing the filter, the machine casing or the complex internal structure needs to be disassembled, which is cumbersome and time-consuming. This not only increases the difficulty of maintenance, but may also cause users to cause accidental damage to the machine during operation. On the other hand, the connection method between the filter and the air pump is usually cumbersome, such as using screws to fasten or a complex snap-on structure, which not only prolongs the replacement time, but also increases the difficulty of operation, which is not conducive to users' daily maintenance and rapid response. Summary of the invention

[0005] The purpose of the present invention is to solve the problem mentioned in the above background technology that when replacing the filter in the nitrogen coffee machine, it is necessary to disassemble the machine casing or the complex internal structure, the operation is cumbersome and time-consuming, which not only increases the difficulty of maintenance, but also may cause accidental damage to the machine by the user during operation. In addition, the replacement time is long and the operation is difficult, which is not conducive to the user's daily maintenance and rapid response.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A nitrogen coffee machine comprises a box body, an air pump and a fixing plate are arranged in the box body, a fixing block and a positioning block are arranged on the fixing plate, a filter is arranged on the positioning block, an elbow joint is fixed on the fixing block, the air pump is connected to the elbow joint through a pipeline, a sealing joint is arranged between the elbow joint and the filter, and they are connected together through the sealing joint, a replacement hole is arranged on the box body, a closing plate is arranged in the replacement hole, and a connecting piece is arranged on the closing plate to fix it to the box body.

[0007] Preferably, a fixing groove is provided on the fixing block, a fixing hoop is connected to the fixing block, the end of the elbow joint is in the fixing groove, and the fixing hoop is on its outside, a supporting block is provided on the fixing block, a connecting end three is provided on the supporting end, a plug connector is provided on the connecting end three, and the plug connector is connected to the elbow joint.

[0008] Preferably, the positioning block is provided with a positioning groove, the filter is located in the positioning groove, the positioning block is symmetrically provided with a plurality of groups of clamping rings, the filter is located between two clamping rings in each group, the positioning groove can stably fit with the filter surface, the filter can be stably placed through the positioning groove, and the filter can be stably clamped and fixed through the clamping ring.

[0009] Preferably, the closing plate is provided with a hinge, and the closing plate is hinged to the box body through the hinge, and the connecting piece includes a pressing plate and a connecting plate, and the pressing plate is provided with a movable end, and the movable end is provided with a connecting rod, and the connecting plate is provided with a connecting hole, and one side of the connecting rod is in the connecting hole, and the connecting plate is arranged inside the box body, and the closing plate can be rotated by the hinge, and the connecting rod can stably fix the closing plate by being inserted into the movable hole.

[0010] Preferably, the closing plate is provided with an extension end, the extension end is provided with a buckle groove and a movable hole, the buckle groove is provided with a movable groove connected to the movable hole, the connecting rod is in the movable hole, the pressing plate and the spring are in the buckle groove, and the movable end is in the movable groove, and the spring can push the connecting rod to be stably inserted into the movable hole.

[0011] Preferably, the sealing joint includes a connecting block 1, a connecting block 2 and a docking tube, the connecting block 1 and the connecting block 2 are both provided with through holes, the connecting block 1 is provided with a plug-in groove, the connecting block 2 is provided with a movable groove, one end of the docking tube is provided with a limiting end, the limiting end is in the movable groove, the end of the docking tube away from the limiting end is movably located in the plug-in groove, and the docking tube can be moved, and the movement of the docking tube can enable the docking tube to quickly dock with or separate from the connecting block 1.

[0012] Preferably, the connecting block 2 includes a block 1 and a block 2, the block 1 and the block 2 are fixedly connected, a movable groove is formed between the block 1 and the block 2, the connecting block 1 is provided with a connecting end 1, the block 2 is provided with a connecting end 2, the connecting block 1 is connected to the filter through the connecting end 1, the block 2 is connected to the connecting end 3 through the connecting end 2, and the connecting block 2 is formed by the connection between the block 1 and the block 2, so that the limiting end of the docking pipe can be installed in the movable groove during installation.

[0013] Preferably, a sealing ring 1 and a sealing ring 2 are provided in the plug-in slot, the sealing ring 1 is located at the innermost end of the plug-in slot, a sealing ring 3 is provided in the movable slot, and a sealing ring 4 is provided in the through hole on the connecting block 2. Through the sealing ring 1, the sealing ring 2, the sealing ring 3 and the sealing ring 4, the butt joint pipe can have a good sealing performance with the connecting block 1 and the connecting block 2.

[0014] Preferably, a control member for controlling the sealing joint is provided on the closing plate, and the control member is connected to the elbow joint, and the control member includes a hinge plate and a positioning plate, and hinge blocks 1 and 2 are provided at both ends of the hinge plate respectively, and a guide rod is provided on the positioning plate, and the hinge block 1 is arranged on the closing plate, and the hinge block 2 is movably sleeved on the guide rod, and the hinge block 2 can be limited by the guide rod so that the hinge block 2 can move laterally stably, and the closing plate can control the docking of the butt tubes through the control member when rotating.

[0015] Preferably, a movable sleeve is provided on the guide rod, a groove is provided on the movable block, the second hinge block is in the groove, an end block is provided on the movable block, the end block is connected to the docking tube, the second hinge block can move in the groove, and the contact between the second hinge block and the groove surface in the movable block can drive the movable block to move, and then drive the docking tube to move.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an easy-to-open closing plate on the nitrogen coffee machine housing, and the closing plate is connected to the housing through a connecting piece. The closing plate can be easily opened without tools, and the filter installation area can be directly exposed, which greatly simplifies the maintenance process and reduces the difficulty of operation. The sealing joint is set up to enable the filter to be quickly and stably connected to the air pump, ensuring that the filter can be quickly disassembled and assembled while maintaining a stable connection, greatly shortening the time required for filter replacement and improving maintenance efficiency; Furthermore, through the control component that is set up, the user can control the docking and separation between the filter and the docking tube through the control component when the closing plate is rotated to open or close, so that the user can control the connection and separation between the docking tube and the filter when the closing plate is opened or closed, thereby directly and quickly controlling the connection and separation between the filter and the air pump, further reducing the difficulty of filter replacement for the user and further improving the maintenance efficiency of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is the internal view of the box of the present invention; Figure 3 It is a sectional view of the box part of the present invention; Figure 4 For the present invention Figure 3 Enlarged view at A in the middle; Figure 5 This is a view showing the closing plate and the control member being separated from each other according to the present invention; Figure 6 A cross-sectional view of a closing plate of the present invention; Figure 7 It is a connection view between the sealing joint and the fixing block and the positioning block of the present invention; Figure 8 It is a separation view of the sealing joint, the fixing block and the positioning block of the present invention; Fig. 9 This is a structural view of the positioning block of the present invention; Fig.10 is a cross-sectional view of the sealing joint of the present invention; Fig.11 It is a structural view of the control component of the present invention.

[0019] Description of the figure numbers: 1. Box; 2. Air pump; 21. Filter; 3. Closing plate; 31. Connecting piece; 311. Pressing plate; 312. Spring; 313. Moving end; 314. Connecting rod; 315. Connecting plate; 32. Extending end; 33. Buckle slot; 34. Moving slot; 35. Moving hole; 4. Control member; 41. Articulated block 1; 42. Articulated plate; 43. Articulated block 2; 44. Positioning plate; 45. Guide rod; 46. Moving block; 461. Groove; 5. Sealing joint; 51. Connection block 1; 511. Connection end 1; 512. Insertion slot; 513. Sealing ring 1; 514. Sealing ring 2; 52. Connection block 2; 521. Connection end 2; 522. Movable slot; 523. Sealing ring 3; 524. Sealing ring 4; 53. Butt joint; 531. Limit end; 6. Fixing plate; 61. Fixing block; 611. Fixing hoop; 612. Support block; 613. Connection end three; 641. Plug connector; 62. Elbow connector; 63. Positioning block; 631. Positioning groove; 632. Clamping ring. DETAILED DESCRIPTION

[0020] The present invention is described in further detail below with reference to the accompanying drawings.

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0022] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0023] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0024] See also Figure 1-Figure 11A nitrogen coffee machine comprises a box body 1, an air pump 2 and a fixing plate 6 are arranged in the box body 1, a fixing block 61 and a positioning block 63 are arranged on the fixing plate 6, a filter 21 is arranged on the positioning block 63, an elbow joint 62 is fixed on the fixing block 61, the air pump 2 is connected to the elbow joint 62 through a pipeline, a sealing joint 5 is arranged between the elbow joint 62 and the filter 21, and they are connected together through the sealing joint 5, a replacement hole is arranged on the box body 1, a closing plate 3 is arranged in the replacement hole, a connecting piece 31 for fixing the closing plate 3 to the box body 1 is arranged on the closing plate 3, a fixing groove is arranged on the fixing block 61, a fixing hoop 611 is connected to the fixing block 61, the end of the elbow joint 62 is in the fixing groove, and the fixing hoop 611 is arranged on the outside thereof, a supporting block 61 is provided with a connecting end three 613 on the supporting end, a plug connector 641 is arranged on the connecting end three 613, and the plug connector 641 is connected to the elbow joint 62.

[0025] Furthermore, a positioning groove 631 is provided on the positioning block 63, and the filter 21 is located in the positioning groove 631. A plurality of groups of clamping rings 632 are symmetrically provided on the positioning block 63, and the filter 21 is located between two clamping rings 632 in each group. The positioning groove 631 can stably fit with the surface of the filter 21, and the filter 21 can be stably placed through the positioning groove 631, and the filter 21 can be stably clamped and fixed through the clamping ring 632.

[0026] The closing plate 3 is provided with a hinge, and the closing plate 3 is hinged with the box body 1 through the hinge. The connecting member 31 includes a pressing plate 311 and a connecting plate 315. The pressing plate 311 is provided with a moving end 313, and the moving end 313 is provided with a connecting rod 314. The connecting plate 315 is provided with a connecting hole, and one side of the connecting rod 314 is in the connecting hole. The connecting plate 315 is arranged on the inner side of the box body 1. The closing plate 3 can be rotated by the hinge. The connecting rod 314 is inserted into the moving end 313. The closing plate 3 can be stably fixed in the hole 35, and an extension end 32 is provided on the closing plate 3, and a buckle groove 33 and a movable hole 35 are provided on the extension end 32. The buckle groove 33 is provided with a movable groove 34 connected to the movable hole 35, and the connecting rod 314 is in the movable hole 35. The pressing plate 311 and the spring 312 are in the buckle groove 33, and the movable end 313 is in the movable groove 34. The spring 312 can push the connecting rod 314 to be stably inserted into the movable hole 35.

[0027] Furthermore, the sealing joint 5 includes a connecting block 1 51, a connecting block 2 52 and a docking tube 53. Both the connecting block 1 51 and the connecting block 2 52 are provided with through holes. The connecting block 1 51 is provided with a plug-in groove 512, and the connecting block 2 52 is provided with a movable groove 522. One end of the docking tube 53 is provided with a limiting end 531, and the limiting end 531 is located in the movable groove 522. One end of the docking tube 53 away from the limiting end 531 is movable in the plug-in groove 512, and the docking tube 53 can move. Through the movement of the docking tube 53, the docking tube 53 can be quickly docked with or separated from the connecting block 1 51.

[0028] It should be noted that the connecting block 2 52 includes a block 1 and a block 2, the block 1 and the block 2 are fixedly connected, a movable groove 522 is formed between the block 1 and the block 2, a connecting end 1 511 is provided on the connecting block 1 51, and a connecting end 2 521 is provided on the block 2, the connecting block 1 51 is connected to the filter 21 through the connecting end 1 511, the block 2 is connected to the connecting end 3 613 through the connecting end 2 521, and the connecting block 2 52 is formed by the connection between the block 1 and the block 2, so that the limiting end 531 of the docking pipe 53 can be installed in the movable groove 522 during installation.

[0029] A sealing ring 1 513 and a sealing ring 2 514 are provided in the plug-in groove 512, and the sealing ring 1 513 is located at the innermost end of the plug-in groove 512. A sealing ring 3 523 is provided in the movable groove 522, and a sealing ring 4 524 is provided in the through hole on the connecting block 2 52. Through the sealing ring 1 513, the sealing ring 2 514, the sealing ring 3 523 and the sealing ring 4 524, the butt joint 53 can have a good sealing performance with the connecting block 1 51 and the connecting block 2 52.

[0030] It should be added that a control member 4 for controlling the sealing joint 5 is provided on the closing plate 3, and the control member 4 is connected to the elbow joint 62. The control member 4 includes a hinge plate 42 and a positioning plate 44. A hinge block 1 41 and a hinge block 2 43 are provided at both ends of the hinge plate 42, respectively. A guide rod 45 is provided on the positioning plate 44. The hinge block 1 41 is provided on the closing plate 3, and the hinge block 2 43 is movably sleeved on the guide rod 45. The hinge block 2 43 can be limited by the guide rod 45 so that the hinge block 2 43 can move laterally stably. When the closing plate 3 rotates, the docking of the docking tube 53 can be controlled by the control member 4.

[0031] Among them, a movable block 46 is movably sleeved on the guide rod 45, and a groove 461 is provided on the movable block 46. The hinge block 43 is in the groove 461. An end block is provided on the movable block 46, and the end block is connected to the docking tube 53. The hinge block 43 can move in the groove 461. The contact between the hinge block 43 and the surface of the groove 461 in the movable block 46 can drive the movable block 46 to move, and then drive the docking tube 53 to move.

[0032] When the filter 21 in the housing 1 is maintained or replaced, the finger is inserted into the buckle groove 33, and the finger tip presses the pressing plate 311 inwardly, the pressing plate 311 squeezes the spring 312, and drives the connecting rod 314 to move, so that the connecting rod 314 is moved out of the connecting hole on the connecting plate 315, and then the closing plate 3 is lifted upward, and the closing plate 3 is rotated outwardly through the hinge to open, so that the filter 21 in the housing 1 is exposed, and when the closing plate 3 is rotated outward, the hinge block 41 is driven to rotate outward together, and when the hinge block 41 is rotated outward, the hinge block 41 is driven to rotate outward. The hinge plate 42 pulls the hinge block 43, and the hinge block 43 moves horizontally through the guide rod 45. After the hinge block 43 moves a certain distance, it drives the moving block 46 to continue to move. The moving block 46 moves by pulling the butt joint 53 through the end, so that the butt joint 53 is removed from the insertion groove 512 on the connecting block 1 51. When the closing plate 3 is fully rotated and opened, the butt joint 53 is just separated from the connecting block 1 51. The user can directly take the filter 21 outward, so that the clamping ring 632 changes shape, and the filter 21 can be directly removed for maintenance or replacement. When the filter 21 is maintained or replaced with a new one, it is pushed toward the two clamping rings 632 so that the filter 21 is pushed between the two clamping rings 632 for clamping and fixing, and the filter 21 is in the positioning groove 631, and the positioning and placement of the filter 21 is quickly completed. Then when the closing plate 3 is rotated to close, the hinge block 1 41 pushes the hinge block 2 43 to move through the hinge plate 42, and the hinge block 2 43 moves toward the filter 21. The hinge block 2 43 pushes the moving block 46 to move through the contact with the moving block 46, and the moving block 46 drives the docking tube 53 to move, so that the docking tube 53 moves toward the connecting block 1 51. The docking tube 53 can be inserted into the plug-in groove 512 on the connecting block 1 51, so that the connecting block 1 51 is connected to the connecting block 2 52 together, thereby quickly connecting the filter 21 to the air pump 2.

[0033] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A nitrogen coffee machine, characterized in that: It comprises a box body (1), wherein an air pump (2) and a fixing plate (6) are arranged in the box body (1), a fixing block (61) and a positioning block (63) are arranged on the fixing plate (6), a filter (21) is arranged on the positioning block (63), an elbow joint (62) is fixed on the fixing block (61), the air pump (2) is connected to the elbow joint (62) via a pipeline, a sealing joint (5) is arranged between the elbow joint (62) and the filter (21), and the two are connected together via the sealing joint (5); The box body (1) is provided with a replacement hole, a closing plate (3) is provided in the replacement hole, and a connecting piece (31) is provided on the closing plate (3) for fixedly connecting the closing plate (3) to the box body (1).

2. A nitrogen coffee machine according to claim 1, characterized in that: The fixing block (61) is provided with a fixing groove, the fixing block (61) is connected to a fixing hoop (611), the end of the elbow joint (62) is located in the fixing groove, and the fixing hoop (611) is located outside the fixing groove, the fixing block (61) is provided with a supporting block (612), the supporting end is provided with a connecting end three (613), the connecting end three (613) is provided with a plug connector (641), and the plug connector (641) is connected to the elbow joint (62).

3. A nitrogen coffee machine according to claim 2, characterized in that: The positioning block (63) is provided with a positioning groove (631), the filter (21) is located in the positioning groove (631), and the positioning block (63) is symmetrically provided with a plurality of groups of clamping rings (632), the filter (21) is located between two clamping rings (632) in each group.

4. The nitrogen coffee machine according to claim 3, characterized in that: The closing plate (3) is provided with a hinge, and the closing plate (3) is hinged to the box body (1) via the hinge. The connecting member (31) comprises a pressing plate (311) and a connecting plate (315). The pressing plate (311) is provided with a moving end (313), and the moving end (313) is provided with a connecting rod (314). The connecting plate (315) is provided with a connecting hole, and one side of the connecting rod (314) is located in the connecting hole. The connecting plate (315) is arranged on the inner side of the box body (1).

5. The nitrogen coffee machine according to claim 4, characterized in that: The closing plate (3) is provided with an extension end (32), the extension end (32) is provided with a buckle groove (33) and a movable hole (35), the buckle groove (33) is provided with a movable groove (34) connected to the movable hole (35), the connecting rod (314) is located in the movable hole (35), the pressing plate (311) and the spring (312) are located in the buckle groove (33), and the movable end (313) is located in the movable groove (34).

6. The nitrogen coffee machine according to claim 5, characterized in that: The sealing joint (5) comprises a first connecting block (51), a second connecting block (52) and a butt joint pipe (53); the first connecting block (51) and the second connecting block (52) are both provided with through holes; the first connecting block (51) is provided with a plug-in slot (512); the second connecting block (52) is provided with a movable slot (522); one end of the butt joint pipe (53) is provided with a limit end (531); the limit end (531) is located in the movable slot (522); and one end of the butt joint pipe (53) away from the limit end (531) is movably located in the plug-in slot (512).

7. The nitrogen coffee machine according to claim 6, characterized in that: The connecting block 2 (52) comprises a block 1 and a block 2, wherein the block 1 and the block 2 are fixedly connected, and a movable groove (522) is formed between the block 1 and the block 2, the connecting block 1 (51) is provided with a connecting end 1 (511), and the block 2 is provided with a connecting end 2 (521), the connecting block 1 (51) is connected to the filter (21) via the connecting end 1 (511), and the block 2 is connected to the connecting end 3 (613) via the connecting end 2 (521).

8. The nitrogen coffee machine according to claim 7, characterized in that: The plug-in slot (512) is provided with a sealing ring 1 (513) and a sealing ring 2 (514), wherein the sealing ring 1 (513) is located at the innermost end of the plug-in slot (512), the movable slot (522) is provided with a sealing ring 3 (523), and the through hole on the connecting block 2 (52) is provided with a sealing ring 4 (524).

9. The nitrogen coffee machine according to claim 8, characterized in that: The closing plate (3) is provided with a control member (4) for controlling the sealing joint (5), the control member (4) being connected to the elbow joint (62), the control member (4) comprising a hinge plate (42) and a positioning plate (44), the hinge plate (42) having a hinge block 1 (41) and a hinge block 2 (43) at both ends thereof, the positioning plate (44) being provided with a guide rod (45), the hinge block 1 (41) being arranged on the closing plate (3), and the hinge block 2 (43) being movably sleeved on the guide rod (45).

10. The nitrogen coffee machine according to claim 9, characterized in that: A moving block (46) is movably sleeved on the guide rod (45), a groove (461) is provided on the moving block (46), the second hinge block (43) is located in the groove (461), an end block is provided on the moving block (46), and the end block is connected to the butt joint pipe (53).

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