Detachable metal brewing head structure for coffee machine

Abstract

This utility model relates to the field of coffee machine technology, specifically to a detachable metal brewing head structure for a coffee machine, including a mounting ring and a brewing head. The mounting ring is provided with a mounting mechanism, and a positioning mechanism and an assembly mechanism are provided between the mounting ring and the brewing head. The assembly mechanism includes an assembly box and a sloping groove. The sloping groove is formed on both sides of the brewing head. The assembly box is installed on the outside of the mounting ring. A fastening groove is formed inside the assembly box, and guide grooves are formed on both sides of the fastening groove. Fastening holes are formed between the guide grooves and the inner walls of the mounting ring. A bidirectional lead screw is provided on the fastening groove. With this structure, the sloping block can be driven to separate from the sloping groove simply by rotating the adjusting shaft through the assembly mechanism, thus quickly completing the disassembly of the brewing head. The reverse operation can achieve fastening, which is convenient for users to clean the brewing head and the filter cup and filter screen on the brewing head regularly.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, specifically to a detachable metal brewing head structure for a coffee machine. Background Technology

[0002] As is well known, in current coffee machine technology, the brewing head is the core component for coffee extraction, and its connection structure with the main body of the coffee machine directly affects ease of use, cleaning and maintenance efficiency, and brewing stability. Traditional coffee machine brewing heads mostly use a fixed welding or single bolt connection structure. The fixed structure makes it difficult to disassemble the brewing head. After long-term use, coffee stains and grease residues on the inner wall of the brewing head, the filter cup, and the filter screen are difficult to clean thoroughly. This not only affects the taste of the coffee but also easily breeds bacteria, posing a hygiene hazard.

[0003] Some traditional detachable structures use single-sided buckles or simple threaded connections, which result in uneven stress. During the brewing process, they are prone to loosening due to water pump pressure or vibration, affecting the stability of extraction pressure and even causing leakage, thus reducing the brewing effect. Therefore, it is necessary to propose a solution to this technical problem. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a detachable metal brewing head structure for coffee machines.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a detachable metal brewing head structure for a coffee machine, comprising a mounting ring and a brewing head. The mounting ring is provided with a mounting mechanism, and a positioning mechanism and an assembly mechanism are provided between the mounting ring and the brewing head. The assembly mechanism includes an assembly box and a slanted groove. The slanted groove is formed on both sides of the brewing head. The assembly box is installed on the outside of the mounting ring. A fastening groove is formed inside the assembly box, and guide grooves are formed on both sides of the fastening groove. Fastening holes are formed between the guide grooves and the inner walls of the mounting ring. A bidirectional lead screw is provided on the fastening groove, and bearing seats are provided at both ends of the bidirectional lead screw. A guide plate is provided on the guide groove, and threaded holes are formed on the guide plate. The bidirectional lead screw passes through the threaded holes. A wedge is provided between the guide plate and the fastening holes. An adjustment box is provided on one side of the assembly box, and an adjustment shaft is provided inside the adjustment box and extends to both sides of the adjustment box. Gears are provided on both the bidirectional lead screw and the adjustment shaft and are meshed together.

[0008] Furthermore, the present invention is improved in that the mounting mechanism includes a mounting block, the mounting block is mounted on the outer side of the top end of the mounting ring, the mounting block is provided with mounting holes, and multiple mounting blocks are provided and arranged in a circular array.

[0009] Furthermore, the present invention is improved in that the positioning mechanism includes a positioning post and a positioning groove, the positioning groove being formed at the bottom end of the inner wall of the mounting ring, and the positioning post being installed on the outer side of the brewing head.

[0010] Furthermore, the present invention is improved by having two positioning mechanisms arranged symmetrically.

[0011] Furthermore, the present invention is improved in that the guide groove is provided with a slide bar, and the outer side of the guide plate is provided with a slide groove, through which the slide bar passes.

[0012] Furthermore, the present invention is improved by providing screw blocks at both ends of the adjusting shaft.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a detachable metal brewing head structure for coffee machines, which has the following advantages:

[0015] This coffee machine uses a detachable metal brewing head structure. The assembly mechanism is driven by the adjustment shaft, gears, and bidirectional lead screw. Simply rotating the adjustment shaft can drive the inclined block and the inclined groove to separate, quickly completing the disassembly of the brewing head. Reverse operation can achieve fastening, which solves the problem of difficult disassembly of traditional fixed structures. It makes it convenient for users to clean the brewing head, filter cup and filter screen regularly, reduce coffee stains, ensure the hygiene and taste of the beverage, and reduce maintenance costs.

[0016] The positioning mechanism between the mounting ring and the brewing head can quickly align their positions at the initial stage of assembly, ensuring that the inclined block and the inclined groove correspond precisely, reducing manual adjustment time. After positioning, the mechanical transmission of the assembly mechanism completes the fastening, realizing an orderly assembly process of positioning first and then fastening, reducing the difficulty of operation, improving installation efficiency, and is especially suitable for scenarios with frequent daily disassembly and maintenance. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0020] Figure 4 This utility model Figure 1 Enlarged top half-section view of the middle assembly box.

[0021] In the diagram: 1. Mounting ring; 2. Brewing head; 3. Assembly box; 4. Inclined groove; 5. Double-acting lead screw; 6. Bearing seat; 7. Guide plate; 8. Inclined block; 9. Adjusting box; 10. Gear; 11. Mounting block; 12. Mounting hole; 13. Positioning pin; 14. Positioning groove; 15. Sliding bar; 16. Tightening block; 17. Adjusting shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4This utility model relates to a detachable metal brewing head structure for a coffee machine, comprising a mounting ring 1 and a brewing head 2. The mounting ring 1 is provided with a mounting mechanism, and a positioning mechanism and an assembly mechanism are provided between the mounting ring 1 and the brewing head 2. The assembly mechanism includes an assembly box 3 and an inclined groove 4. The inclined groove 4 is formed on both sides of the brewing head 2. The assembly box 3 is installed on the outside of the mounting ring 1. A fastening groove is formed inside the assembly box 3, and guide grooves are formed on both sides of the fastening groove. Fastening holes are formed between the guide grooves and the inner walls of the mounting ring 1. A bidirectional lead screw 5 is provided on the fastening groove, and bearing seats 6 are provided at both ends of the bidirectional lead screw 5. A guide plate 7 is provided on the guide groove, and a screw is formed on the guide plate 7. The threaded hole is formed by the bidirectional lead screw 5 passing through it. An inclined block 8 is provided between the guide plate 7 and the fastening hole. An adjustment box 9 is provided on one side of the assembly box 3. An adjustment shaft 17 is provided inside the adjustment box 9 and extends to both sides of the adjustment box 9. Gears 10 are provided on both the bidirectional lead screw 5 and the adjustment shaft 17 and are meshed together. In this embodiment, the mounting ring 1 is mounted on the brewing position of the coffee machine via an installation mechanism. When the brewing head 2 is mounted on the mounting ring 1, the operator places the filter screen, filter cup, etc., as needed, using brewing auxiliary tools. The bottom of the brewing head 2 in the accompanying drawings is where the filter cup is mounted. The filter cup and filter screen are existing technologies, and their installation and adaptation with the brewing head 2 are also based on existing technologies. These will not be described in detail in this structure. The mounting ring 1 has a ring structure, which facilitates the coffee brewing device within the mounting ring 1 and the flow of brewed coffee. When the brewing head 2 needs to be assembled onto the mounting ring 1, the positioning mechanism positions the brewing head 2 on the inner wall of the mounting ring 1, thereby aligning the inclined grooves 4 on both sides of the brewing head 2 with the inclined blocks 8 of the corresponding two fastening holes. Then, the operator rotates the adjusting shaft 17 of the adjusting box 9, and the gear 10 of the adjusting shaft 17 meshes with the gear 10 of the double-acting screw 5, allowing the double-acting screw 5 to rotate stably through the bearing seat 6. The double-acting screw 5 passes through the threaded holes of the guide plates 7 in the two guide grooves, allowing the two guide plates 7 to move linearly in the guide grooves. Through the double-acting threads of the double-acting screw 5, the two guide plates 7 can move linearly in opposite directions. When the two guide plates 7 move closer together, they cause the inclined block 8 to move linearly. The inclined block 8 contacts and abuts against the inclined groove 4, thus fixing the brewing head 2 and achieving quick assembly and fixation. The upward thrust generated by the inclined block 8 and the inclined groove 4 ensures that the brewing head 2 is firmly and stably fixed on the mounting ring 1, facilitating the use of the brewing head 2 to filter coffee. By rotating the adjusting shaft 17 in the opposite direction, the inclined block 8 can be moved in the opposite direction, leaving the inclined block 8 away from the inclined groove 4, allowing the brewing head 2 to be quickly removed for easy cleaning of the filter screen, filter cup, and other tools placed on the brewing head 2. This facilitates the cleaning, maintenance, or replacement of the brewing head 2. The bidirectional lead screw 5 synchronously drives the two guide plates 7, so that the inclined block 8 is symmetrically stressed, forming a stable locking effect with the inclined surface of the inclined groove 4.To avoid loosening due to vibration during brewing.

[0024] To facilitate the assembly and fixing of the mounting ring 1, in this design, the mounting mechanism includes a mounting block 11. The mounting block 11 is installed on the outer top end of the mounting ring 1, and the mounting block 11 has mounting holes 12. Multiple mounting blocks 11 are arranged in a circular array. Through the circular array of mounting blocks 11 and mounting holes 12, the mounting ring 1 is fixed to the corresponding position on the coffee machine using bolts or other connecting components. Multiple evenly distributed fixing points distribute the force. The multiple circular array of mounting blocks 11 ensures that the fixing force between the mounting ring 1 and the coffee machine is even, avoiding tilting or loosening caused by unilateral force.

[0025] To facilitate the positioning and insertion of the brewing head 2 onto the mounting ring 1, in this design, the positioning mechanism includes a positioning post 13 and a positioning groove 14. The positioning groove 14 is formed at the bottom of the inner wall of the mounting ring 1, and the positioning post 13 is installed on the outer side of the brewing head 2. During assembly, the positioning post 13 of the brewing head 2 is inserted into the positioning groove 14 of the mounting ring 1. The cooperation between the positioning post 13 and the positioning groove 14 restricts their radial or circumferential relative displacement, achieving initial positioning. This provides a visual guide for assembly, reduces alignment difficulties during assembly, and improves operational efficiency. After initial positioning, the shaking of the brewing head 2 can be temporarily restricted, facilitating subsequent fastening operations of the assembly mechanism.

[0026] To further facilitate the positioning of the brewing head 2, in this design, two positioning mechanisms are provided and symmetrically arranged. The two symmetrically distributed positioning mechanisms position the brewing head 2 and the mounting ring 1 from both sides, forming a two-point limit, further restricting circumferential rotation or radial displacement.

[0027] To improve the stability of the linear movement of the guide plate 7, in this solution, a slide bar 15 is provided on the guide groove, and a sliding groove is opened on the outer side of the guide plate 7. The slide bar 15 passes through the sliding groove, and the slide bar 15 and the sliding groove form a sliding fit, which forcibly constrains the movement direction of the guide plate 7, ensuring that the guide plate 7 only moves linearly along the axial direction of the guide groove, and avoids it from rotating or deviating under the drive of the bidirectional lead screw 5.

[0028] To facilitate the rotation of the adjustment shaft 17, in this design, the two ends of the adjustment shaft 17 are provided with screw blocks 16. The screw blocks 16 increase the contact area of ​​the operating end of the adjustment shaft 17, making it easier for the user to drive the adjustment shaft 17 to rotate by manually rotating the screw blocks 16, and the adjustment can be completed without additional tools.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable metal brewing head structure for coffee machines, comprising a mounting ring (1) provided with a mounting mechanism, and a brewing head (2), between which a positioning mechanism and an assembly mechanism are provided, characterized in that, The assembly mechanism includes an assembly box (3) and a sloping groove (4). The sloping groove (4) is opened on both sides of the brewing head (2). The assembly box (3) is installed on the outside of the mounting ring (1). The assembly box (3) has a fastening groove inside. The fastening groove has guide grooves on both sides. The guide groove and the inner wall of the mounting ring (1) have fastening holes. The fastening groove has a double-acting screw (5). The two ends of the double-acting screw (5) have bearing seats (6). The guide groove has a guide plate (7). The guide plate (7) has a threaded hole. The double-acting screw (5) passes through the threaded hole. The guide plate (7) and the fastening hole have a sloping block (8). The assembly box (3) has an adjustment box (9) on one side. The adjustment box (9) has an adjustment shaft (17) inside and extends to both sides of the adjustment box (9). The double-acting screw (5) and the adjustment shaft (17) are both equipped with gears (10) and mesh with each other.

2. A removable metal brew head structure for a coffee maker as defined in claim 1, wherein, The mounting mechanism includes a mounting block (11), which is mounted on the outer side of the top end of the mounting ring (1). The mounting block (11) is provided with mounting holes (12), and there are multiple mounting blocks (11) arranged in a circular array.

3. A removable metal brew head structure for a coffee maker as defined in claim 2, wherein, The positioning mechanism includes a positioning post (13) and a positioning groove (14). The positioning groove (14) is opened at the bottom of the inner wall of the mounting ring (1), and the positioning post (13) is installed on the outside of the brewing head (2).

4. A removable metal brew head structure for a coffee maker as defined in claim 3, wherein, The positioning mechanism has two parts, which are arranged symmetrically.

5. A removable metal brew head structure for a coffee maker as defined in claim 4, wherein, The guide groove is provided with a slide bar (15), and the outer side of the guide plate (7) is provided with a sliding groove, through which the slide bar (15) passes.

6. A removable metal brew head structure for a coffee maker as defined in claim 5, wherein, The adjusting shaft (17) is provided with screw blocks (16) at both ends.

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