A locking structure for the water inlet cap of a coffee machine
By incorporating an angled movement path and a vertical hinge axis into the locking structure of the coffee machine's water inlet cap, single-handed unlocking and opening of the cap are achieved, solving the problem of traditional coffee machines requiring two-handed operation and improving locking reliability and aesthetic integrity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUAGUANG ELECTRIC APPLIANCE GRP
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-31
AI Technical Summary
The existing water inlet cap locking mechanism of coffee machines requires two hands to operate, which is inconvenient for unlocking and opening the cap, and the exposed locking mechanism affects the integrity of the appearance.
Design a water supply cover locking structure such that the moving path of the locking structure is set at an angle to the hinge axis, the pressing direction of the driving component is perpendicular to the flipping direction of the cover, it can be operated with one hand, and automatic reset and limit are achieved through the locking plate, baffle and elastic reset component, and the buckle is hidden to maintain the integrity of the appearance.
It enables one-handed unlocking and opening, improving ease of use, ensuring locking reliability and aesthetic consistency, and preventing accidental contact and damage to the locking structure.
Smart Images

Figure CN224572566U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee machines, and in particular to a locking structure for the water inlet cap of a coffee machine. Background Technology
[0002] Currently, coffee machines on the market use coffee powder packets as the extraction material. The coffee machine has a cup holder with a cup cavity inside. The coffee powder packet is placed into the filter, and then the filter is placed into the cup cavity. The lid used to seal the cup cavity is closed, and the coffee machine injects a mixture of high-temperature, high-pressure water and steam into the coffee powder packet to extract coffee liquid.
[0003] For coffee machine lids that open like flip-tops, a locking mechanism needs to be installed between the lid and the main unit to prevent the lid from not closing securely during use.
[0004] In existing technologies, locking mechanisms are typically designed for pressing to open. A button on the top of the cover is used to unlock the mechanism, allowing the cover to open. However, this unlocking method requires the user to apply additional force to other parts of the cover during the opening process, as the cover needs to be pressed down while simultaneously flipping it upwards. This is inconvenient. Utility Model Content
[0005] In order to solve the above-mentioned problems in the prior art, the present invention provides a water inlet cover locking structure for a coffee machine.
[0006] The above-mentioned problems of this utility model are solved by the following technical solution:
[0007] A water inlet cap locking structure for a coffee machine includes a water inlet cap hinged to the main unit; the water inlet cap closes onto the main unit to form a coffee cavity; the water inlet cap draws water from a water supply device inside the main unit and injects hot water into the coffee cavity through a water outlet; the bottom of the coffee cavity is provided with a liquid outlet;
[0008] One end of the water supply cover is configured as a hinge end, which is connected to the main unit via a rotating shaft, so that the water supply cover rotates around axis L and forms an upward-folding structure relative to the main unit.
[0009] The water supply cover is provided with a locking structure. The latch of the locking structure extends to the outside of the end face of the water supply cover and can move along the moving path M relative to the locking groove on the main unit to lock the water supply cover on the main unit.
[0010] The locking structure also includes a driving component exposed on the surface of the water supply cover, which can be driven by hand to make the latch and the driving component move synchronously under the action of hand;
[0011] The movement path M and the axis L are set at an angle.
[0012] By adopting the above technical solution, the moving path M of the locking structure is set at an angle to the hinge axis L of the water supply cover, so that the pressing direction of the driving component is perpendicular to the flipping direction of the cover, avoiding the mutual interference between the pressing force and the opening force. Users can complete the unlocking and opening actions with one hand, solving the inconvenience of traditional pressing unlocking requiring two hands.
[0013] A further provision of the above technical solution is that the water supply cover includes an outer shell forming a cavity and a bottom cover, wherein the bottom cover can overlap with the end face of the main unit so that the end face of the outer shell forms the outer surface of the main unit;
[0014] The bottom cover is provided with a groove that can accommodate the extension of the latch and restrict the movement of the latch.
[0015] A further provision of the above technical solution is that the locking structure includes a locking plate located within the cavity of the water supply cover, and the latch is formed on the lower end surface of the locking plate and protrudes from the end surface of the locking plate;
[0016] The locking plate is provided with a driven part for receiving the drive of the driving component.
[0017] A further provision of the above technical solution is that the driving component includes a pressing part exposed on the front end face of the water supply cover, and a moving part extending from the pressing part toward the cavity of the water supply cover, wherein the moving part is provided with a driving part that cooperates with the driven part.
[0018] A further provision of the above technical solution is as follows: a baffle perpendicular to the moving path M is provided in the cavity of the water supply cover, and an elastic reset member is provided between the locking plate and the baffle, the elastic reset member pushing the locking plate outward.
[0019] By adopting the above technical solution, the elastic reset component between the lock plate and the baffle can automatically push the latch back to the locked position after the external force is removed, eliminating the need for manual reset and simplifying the operation process; the cooperation between the limit post and the limit groove limits the movement stroke of the lock plate and the drive component, preventing structural damage caused by excessive operation.
[0020] A further provision of the above technical solution is that a limiting post is formed in the cavity of the water supply cover, the limiting post is set perpendicular to the moving path M, and passes through the locking plate and the moving part;
[0021] The locking plate and the moving part are provided with a limiting groove that can accommodate the relative movement of the limiting post.
[0022] A further provision of the above technical solution is that: the locking plate is provided with a balance groove, the balance groove is located on both sides of the driven part, and the driving component is provided with an abutment rib that can be inserted into the balance groove.
[0023] A further provision of the above technical solution is that the locking plate is provided with a mating groove, which is used to limit the movement of the driving component.
[0024] A further provision of the above technical solution is that the host is provided with a stop tongue, and the stop tongue is provided with a stop rib that can stop the drive component.
[0025] By adopting the above technical solution, the stop tongue and stop rib on the main unit can mechanically limit the drive components and prevent them from moving excessively. At the same time, when the water supply cover is closed, it fits into the groove of the main unit to form a compact structure and improve the safety of use.
[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0027] 1. The moving path M of the locking structure is set at an angle to the hinge axis L of the water supply cover, so that the pressing direction of the driving component is perpendicular to the flipping direction of the cover, avoiding interference between the pressing force and the opening force. Users can complete the unlocking and opening actions with one hand, solving the inconvenience of traditional pressing unlocking requiring two hands.
[0028] 2. The lock plate is symmetrically equipped with latches on both sides, which, together with the drive design of the central driven part, ensure that the latches on both sides move synchronously when unlocking / locking, thus improving the reliability of locking; the cooperation of the balance groove and the abutment rib further ensures the smooth linkage between the drive component and the lock plate, avoiding jamming or tilting.
[0029] 3. The latch is hidden, and the locking part is not exposed, ensuring the integrity of the overall appearance of the coffee machine; the bottom cover latch groove design not only restricts the movement of the latch, but also avoids accidental contact or damage to the latch during daily use. Attached Figure Description
[0030] Figure 1 A schematic diagram showing the water supply cover in the open position.
[0031] Figure 2 This is a schematic diagram of the water supply cover in the closed position.
[0032] Figure 3 This is a schematic diagram of the structure between the water supply cover and the connecting end face.
[0033] Figure 4 This is an exploded view of the locking structure inside the water supply cover.
[0034] Figure 5 This is a schematic diagram showing the position of the locking structure on the bottom cover.
[0035] Figure 6 This is an exploded structural diagram of the drive component and the locking plate.
[0036] The attached diagram is labeled as follows: 100, main unit; 101, notch; 102, groove; 110, connecting end face; 111, locking groove.
[0037] 200. Water supply cover; 210. Outer shell; 220. Bottom cover; 221. Snap groove; 201. Notch; 222. Baffle; 223. Limiting post;
[0038] 300, Locking plate; 310, Locking latch; 320, Driven part; 301, Balance groove; 302, Mating groove; 330, Mounting post;
[0039] 400. Driving component; 410. Pressing part; 420. Moving part; 421. Driving part; 422. Abutment rib;
[0040] 1. Button; 2. Rotating shaft; 3. Elastic reset component; a. Limiting groove; 4. Stop tongue; 4.1. Stop rib. Detailed Implementation
[0041] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0042] like Figure 1-6 As shown in the figure, this embodiment discloses a water inlet cap locking structure for a coffee machine.
[0043] like Figure 1 and Figure 2 As shown, a locking structure for a water inlet cover 200 of a coffee machine includes a water inlet cover 200 hinged to the main unit 100; the water inlet cover 200 closes onto the main unit 100 to form a coffee cavity; the water inlet cover 200 draws water from a water supply device inside the main unit 100 and injects hot water into the coffee cavity through a water outlet; the bottom of the coffee cavity is provided with a liquid outlet;
[0044] Place the coffee powder bag into the coffee chamber, close the water inlet cap 200 onto the main unit 100, operate button 1 on the top to set the coffee machine mode, the coffee machine starts, the water in the main unit 100 is heated and enters the water inlet cap 200, and is output from the outlet of the water inlet cap 200 to the coffee chamber to extract the coffee powder bag in the coffee chamber, and the extracted coffee liquid is output to the outside through the liquid outlet of the coffee chamber.
[0045] One end of the water supply cover 200 is configured as a hinge end, and the hinge end is connected to the main unit 100 through a rotating shaft 2, so that the water supply cover 200 rotates around the axis L and forms an upward flip-up structure relative to the main unit 100.
[0046] The main unit 100 has a notch 101 on its upper part, and a groove 102 that matches the lower end face of the water supply cap 200 is provided in the notch 101. The notch 101 of the main unit 100 also has a connecting end face 110 that matches the notch 101. When the water supply cap 200 is closed, its lower part is embedded in the groove 102 to form a coffee cavity. At the same time, the upper end face of the water supply cap 200 and the upper end face of the main unit 100 form a complete external structure.
[0047] The water supply cover 200 is provided with a locking structure. The latch 310 of the locking structure extends to the outside of the end face of the water supply cover 200 and can move along the moving path M relative to the locking groove 111 on the host 100 to lock the water supply cover 200 on the host 100.
[0048] The locking structure also includes a driving component 400, which is exposed on the surface of the water supply cover 200 and can be driven by a human hand so that the latch 310 and the driving component 400 move synchronously under the action of a human hand.
[0049] The movement path M and the axis L are set at an angle.
[0050] Preferably, in this embodiment, the moving path M is along the end face direction of the water supply cover 200.
[0051] Preferably, in this embodiment, the moving path M and the axis L are set at a right angle.
[0052] In this embodiment, the terms "upper part," "lower part," "upper end face," and "lower end face" all refer to the state when the water supply cover 200 is in the closed position.
[0053] The operator manipulates the drive unit 400 to move the latch 310 along the moving path M to the unlocking position. At this time, the latch 310 is completely located in the lock groove 111 and is in the unlocked state with the lock groove 111. That is, there is no connection between the latch 310 and the lock groove 111. At this time, the water supply cover 200 can be flipped up from the main unit 100 to open the coffee container and perform the pre- or post-coffee making operations.
[0054] The water supply cover 200 is placed on the main unit 100, and the water supply cover 200 is engaged with the notch 101 of the main unit 100. At this time, the drive component 400 is released, the drive component 400 is reset, and the latch 310 moves along the moving path M to the locking position. When the latch 310 is in the locking position, its hook part hooks the edge of the locking groove 111, so that the latch 310 and the locking groove 111 are in a hook-locked state; that is, the edge of the locking groove 111 limits the hook part of the latch 310, and the water supply cover 200 cannot be opened from the main unit 100.
[0055] In this embodiment, the direction of movement along the moving path M toward the front of the host 100 is the locking direction (reset direction), and the other direction is the unlocking direction.
[0056] Based on the above settings, in this embodiment, the pressing direction of the hand on the drive component 400 and the opening direction of the water supply cover 200 are at right angles. Therefore, the pressing force will not hinder the opening force of the water supply cover 200, and the user can operate the water supply cover 200 with one hand, which is convenient to use.
[0057] Specifically, refer to Figure 3 As shown, the water supply cover 200 includes an outer shell 210 forming a cavity and a bottom cover 220. The bottom cover 220 can overlap with the end face of the main unit 100 so that the upper end face of the outer shell 210 forms the outer surface of the main unit 100.
[0058] The bottom cover 220 is provided with a buckle groove 221 that can accommodate the extension of the buckle 310 and restrict the movement of the buckle 310.
[0059] When the water inlet cover 200 is closed, the latch 310 is exposed on the lower end face of the water inlet cover 200, thereby hiding the locking part between the water inlet cover 200 and the connecting end face 110, thus ensuring the consistency of the coffee machine's appearance, and at the same time, preventing damage to the latch 310 during daily use.
[0060] In this embodiment, the width of the groove 221 along the moving path M is greater than the width of the latch 310 in that direction.
[0061] Specifically, in this embodiment, the locking structure includes a locking plate 300 located in the cavity of the water supply cover 200, and the latch 310 is formed on the lower end surface of the locking plate 300 and protrudes from the end surface of the locking plate 300.
[0062] The locking plate 300 is provided with a driven part 320 for receiving the drive of the driving component 400.
[0063] Reference Figure 4As shown, the locking plate 300 is movably disposed within the cavity of the water supply cover 200 and is driven by the driving component 400, enabling it to reciprocate linearly along the moving path M inside the water supply cover 200.
[0064] The latch 310 is formed on the lower end surface of the latch plate 300 and can extend through the latch groove 221 to the bottom cover 220, thereby being able to hook with the connecting end face 110 at the lower end of the bottom cover 220.
[0065] Furthermore, in order to ensure the balance of the locking plate 300, two latches 310 are provided at the bottom of the locking plate 300 in this embodiment and are arranged symmetrically. At the same time, the driven part 320 is located at the center of the locking plate 300, that is, the middle part of the two latches 310. When the driving component 400 drives the locking plate 300 through the driven part 320, it simultaneously drives the latches 310 on both sides to move synchronously, so as to ensure that the two latches 310 lock or release the connecting end face 110 at the same time.
[0066] Specifically, the drive component 400 includes a pressing part 410 exposed on the front end face of the water supply cover 200, and a moving part 420 extending from the pressing part 410 toward the cavity of the water supply cover 200. The moving part 420 is provided with a drive part 421 that cooperates with the driven part 320.
[0067] Reference Figure 4 As shown, the drive component 400 is configured as a T-structure, with its pressing part 410 exposed on the surface of the front end of the water supply cover 200. In order to ensure the consistency of the surface of the water supply cover 200, in this embodiment, the front end of the outer shell 210 of the water supply cover 200 is provided with a notch 201 that can accommodate the pressing part 410. The pressing part 410 is embedded in the notch 201 and forms a complete shape with the outer shell 210 of the water supply cover 200.
[0068] Furthermore, to meet consumer usage habits, the notch 201 is provided on the periphery of the housing 210.
[0069] The moving part 420 of the drive component 400 extends into the cavity of the water supply cover 200 and forms a connection with the lock plate 300.
[0070] Preferably, in this embodiment, the driving part 421 of the moving part 420 is configured as a fixing hole, and the driven part 320 of the locking plate 300 is configured as a fixing post. The fixing post and the fixing hole are connected by screws, so that the driving part 400 and the locking plate 300 form an integral structure.
[0071] In other embodiments, the driving part 421 and the driven part 320 may be configured in other forms.
[0072] When the external force on the driving component 400 is removed, the latch 310 resets and can automatically lock the locking groove 111. In this embodiment, the cavity of the water supply cover 200 is provided with a baffle 222 perpendicular to the moving path M, and an elastic reset member 3 is provided between the locking plate 300 and the baffle 222. The elastic reset member 3 pushes the locking plate 300 outward.
[0073] Preferably, in this embodiment, the elastic reset member 3 is a spring, and in order to ensure that the springs are in the same position, a mounting post 330 is formed on the locking plate 300, and the elastic reset member 3 is limited and disposed on the mounting post 330.
[0074] The spring is sleeved on the mounting post 330, and its rear end supports the baffle 222, thereby giving the locking plate 300 a tendency to move outward.
[0075] In this embodiment, the baffle 222 is formed on the bottom cover 220.
[0076] In addition, in order to limit the movement range of the drive component 400 and the locking plate 300, in this embodiment, a limiting post 223 is formed in the cavity of the water supply cover 200. The limiting post 223 is arranged perpendicular to the movement path M and passes through the locking plate 300 and the moving part 420.
[0077] The locking plate 300 and the moving part 420 are provided with a limiting groove a that can accommodate the relative movement of the limiting post 223.
[0078] Preferably, in this embodiment, the limiting groove a is a straight groove arranged along the moving path M, and the limiting post 223 is formed on the bottom cover 220 and can extend upward into the limiting groove a.
[0079] In this embodiment, the two limiting grooves a on the locking plate 300 and the moving part 420 at least partially overlap, and the length of the overlapping part along the moving path M is the active length of the locking plate 300 and the driving component 400.
[0080] Since the driving component 400 and the locking plate 300 are fixed in this embodiment, the limiting post 223 only needs to limit the locking plate 300 or the driving component 400.
[0081] In this embodiment, in order to ensure the stability of the driving component 400 when driving the locking plate 300, the locking plate 300 is provided with a balance groove 301, the balance groove 301 is located on both sides of the driven part 320, and the driving component 400 is provided with an abutment rib 422 that can be inserted into the balance groove 301.
[0082] Specific reference Figure 6As shown, the abutment rib 422 is a strip rib protruding from the lower end of the moving part 420 and extends along the moving direction; the balance groove 301 cooperates with the lower end of the abutment rib 422 and can accommodate the lower end of the abutment rib 422, thereby forming a limiting connection between the driving part 400 and the locking plate 300.
[0083] The moving parts 420 located at the front and rear ends of the abutment rib 422 abut against the end face of the locking plate 300, thereby forming a balanced support between the locking plate 300 and the moving parts 420.
[0084] In this embodiment, the locking plate 300 is provided with a mating groove 302, which is used to limit the movement part 420 of the driving component 400.
[0085] Specific reference Figure 6 As shown, the mating groove 302 is a groove located in the middle of the locking plate 300 and extends through both ends of the moving path M. The moving part 420 of the driving component 400 is embedded in the groove, thereby forming an integral part with the locking plate 300.
[0086] Furthermore, in this embodiment, the balance groove 301 is located at the bottom of the mating groove 302. That is, a stable connection is formed between the entire moving part 420 and the locking plate 300, thereby keeping the latches 310 on both sides of the locking plate 300 in a balanced state during movement.
[0087] In this embodiment, the host 100 is provided with a stop tongue 4, and the stop tongue 4 is provided with a stop rib 4.1 that can stop the drive component 400.
[0088] Specific reference Figure 2 As shown, the stop tongue 4 is formed on the connecting end face 110 and extends to the front of the front end face of the host 100. The stop rib 4.1 protrudes from the upper surface of the stop tongue 4, and the shape of the stop rib is consistent with the shape of the pressing part 410 of the drive component 400.
[0089] The water supply cover 200 is placed on the main unit 100. The lower end face of the drive component 400 is located on the stop tongue 4. The stop rib 4.1 stops the front end face of the drive component 400, thereby limiting the movement of the drive component 400 on the movement path M.
[0090] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A water inlet cap locking structure for a coffee machine, comprising a water inlet cap (200) hinged to a main unit (100); the water inlet cap (200) closes onto the main unit (100) to form a coffee cavity; the water inlet cap (200) draws water from a water supply device inside the main unit (100) and injects hot water into the coffee cavity through a water outlet; the bottom of the coffee cavity is provided with a liquid outlet; characterized in that One end of the water supply cover (200) is configured as a hinge end, and the hinge end is connected to the host (100) through a rotating shaft (2), so that the water supply cover (200) rotates around the axis L and forms an upward flip structure relative to the host (100); The water supply cover (200) is provided with a locking structure. The latch (310) of the locking structure extends to the outside of the end face of the water supply cover (200) and can move along the moving path M relative to the locking groove (111) on the host (100) to lock the water supply cover (200) on the host (100). The locking structure also includes a driving component (400) exposed on the surface of the water supply cover (200) and capable of being driven by hand so that the latch (310) and the driving component (400) move synchronously under the action of hand. The movement path M and the axis L are set at an angle.
2. The water inlet cap locking structure of the coffee machine according to claim 1, characterized in that: The water supply cover (200) includes an outer shell (210) forming a cavity and a bottom cover (220). The bottom cover (220) can overlap with the end face of the main unit (100) so that the end face of the outer shell (210) forms the outer surface of the main unit (100). The bottom cover (220) is provided with a buckle groove (221) that can accommodate the extension of the buckle (310) and constrain the movement of the buckle (310).
3. The water inlet cap locking structure of the coffee machine according to claim 1 or 2, characterized in that: The locking structure includes a locking plate (300) located in the cavity of the water supply cover (200), and the latch (310) is formed on the lower end surface of the locking plate (300) and protrudes from the end face of the locking plate (300); The locking plate (300) is provided with a driven part (320) for receiving the drive of the driving component (400).
4. The water inlet cap locking structure of the coffee machine according to claim 3, characterized in that: The drive component (400) includes a pressing part (410) exposed on the front end face of the water supply cap (200) and a moving part (420) extending from the pressing part (410) toward the cavity of the water supply cap (200), the moving part (420) being provided with a drive part (421) cooperating with the driven part (320).
5. The water inlet cap locking structure of the coffee machine according to claim 4, characterized in that: The water supply cover (200) has a baffle (222) perpendicular to the moving path M inside its cavity. An elastic reset member (3) is provided between the locking plate (300) and the baffle (222), and the elastic reset member (3) pushes the locking plate (300) outward.
6. The water inlet cap locking structure of the coffee machine according to claim 4, characterized in that: A limiting post (223) is formed in the cavity of the water supply cover (200). The limiting post (223) is set perpendicular to the moving path M and passes through the locking plate (300) and the moving part (420). The locking plate (300) and the moving part (420) are provided with a limiting groove (a) that can accommodate the relative movement of the limiting post (223).
7. The water inlet cap locking structure of the coffee machine according to claim 3, characterized in that: The locking plate (300) is provided with a balance groove (301), the balance groove (301) is located on both sides of the driven part (320), and the driving component (400) is provided with an abutment rib (422) that can be inserted into the balance groove (301).
8. The water inlet cap locking structure for a coffee machine according to claim 7, characterized in that: The locking plate (300) is provided with a mating groove (302), which is used to limit the moving part (420) of the driving component (400).
9. The water inlet cap locking structure of the coffee machine according to claim 1, characterized in that: The host (100) is provided with a stop tongue (4), and the stop tongue (4) is provided with a stop rib (4.1) that can stop the drive component (400).