Switching water supply device for bottle opening of capsule coffee machine
By designing a water supply device that allows for bottle-neck conversion in capsule coffee machines, the problems of easy damage and unstable water quality during transportation and carrying of the water supply device in capsule coffee machines have been solved, achieving the effects of convenient water supply and food safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郭熙媛
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-08
AI Technical Summary
Existing capsule coffee machine water supply devices are easily damaged during transportation and carrying, and the liquid water is difficult to preserve during storage, posing a food safety hazard.
A water supply device for a capsule coffee machine with bottle neck conversion was designed, including a water inlet, a pressure reducing vent, a tray, and a water outlet. By utilizing the threaded design of the external bottle neck and the inner plug design, combined with the structure of the tray, a stable water supply is achieved and leakage is prevented, reducing water overflow.
It enables convenient replacement of water supply modes, reduces replacement costs due to damage, improves safety during transportation and carrying, and ensures stable water quality.
Smart Images

Figure CN224206645U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of daily necessities, and specifically relates to an external bottled water supply device for a capsule coffee machine. Background Technology
[0002] Capsule coffee machines are a type of coffee machine that uses pre-packaged coffee capsules to quickly brew different flavors of coffee, offering speed and a wide variety of flavors. Current capsule coffee machines use a dedicated water tank, where liquid water is stored and supplied to the machine through a bottom channel. However, these water tanks are prone to damage and deformation during transportation and handling due to external forces such as pressure and sun exposure, and are also easily lost. Furthermore, the liquid water stored in the tank is susceptible to spoilage due to environmental and temporal factors. Summary of the Invention
[0003] To address the problems existing in the use of existing capsule coffee machines, this utility model proposes a bottle-neck conversion water supply device that can replace water bottles, solving potential food safety issues during water tank storage and reducing the cost of replacing damaged capsule coffee machine water tanks. The specific technical solution is: a bottle-neck conversion water supply device for capsule coffee machines, characterized in that: the conversion water supply device includes a water inlet, a pressure-reducing vent, a tray, and a water outlet; the water inlet is located on the tray, protruding from the upper surface of the tray; an external bottle neck thread is provided inside the water inlet; the external bottle neck thread is located on the inner wall of the water inlet hole, is an internal thread, and matches the bottle neck of an external bottled water container, allowing the bottle neck of the external bottled water container to be screwed onto the water inlet; an inner plug is provided at the bottom of the water inlet. The size and shape of the inner stopper match the inner diameter of the bottle neck of the external bottled water, preventing water leakage from the joint between the inner stopper and the bottle neck. The pressure-reducing vent is located on the tray, with one end connected to the water outlet and the other end communicating with the external air on the tray surface, eliminating negative pressure generated inside the bottled water installed at the water inlet. The tray is located between the water inlet and the water outlet and is larger than the cross-sectional area of the water inlet and the water outlet. After installation, it can stabilize the center of gravity of the inverted bottled water and reduce water overflow caused by the bottle's displacement. The water outlet is located at the bottom of the tray and includes a water outlet channel and a water outlet. One end of the water outlet channel is connected to the water inlet, and the other end is connected to the water outlet on the lower surface of the tray, which in turn connects to the water inlet of the capsule coffee machine. The water outlet is located on the lower surface of the tray and communicates with the water outlet channel.
[0004] Furthermore, the water inlet is located on the upper surface of the tray and protrudes from the upper surface of the tray.
[0005] Furthermore, the inner plug is a thin-walled cylindrical body.
[0006] Furthermore, the cross-sectional shape and size of the tray match the shape and size of the installation position of the water inlet of the capsule coffee machine.
[0007] Furthermore, the diameter of the pressure-reducing vent is smaller than the diameter of the water outlet channel.
[0008] Furthermore, the water outlet channel is stepped.
[0009] Furthermore, the water outlet channel and the tray have an eccentric structure.
[0010] Beneficial effects
[0011] The beneficial effect of this utility model is that it makes it easy to change the water supply mode of the capsule coffee machine, reducing damage to the coffee machine during transportation and carrying. Attached Figure Description
[0012] Figure 1 This is a top view schematic diagram of the structure of this utility model.
[0013] Figure 2 This is a longitudinal cross-sectional structural diagram of the present invention.
[0014] Figure 3 This is a schematic diagram of the appearance structure of this utility model.
[0015] 1. Water inlet, 2. Tray, 3. Pressure relief vent, 4. Water outlet, 11. Thread, 12. Inner plug. Detailed Implementation
[0016] To better illustrate the technical solution of this utility model, the specific embodiments of this utility model are further described below with reference to the accompanying drawings, such as... Figure 1-3In this example, materials that meet national food hygiene requirements and are commonly used in this industry are selected to manufacture this device. First, the water inlet 1 is placed on top of the tray 2, protruding from the upper surface of the tray 2. A circular hole is provided at the protrusion, the depth of which is less than the sum of the thickness of the tray 2 and the height of the protrusion of the water inlet 1, making it a blind hole. An internal thread 11 is provided on the hole wall to match the thread of the bottle neck of the external bottled water (in this example, commercially available bottled water that meets national standards) to ensure that the bottle neck of the bottled water can be screwed into the water inlet 1 smoothly. At the bottom of the blind hole, a thin-walled cylindrical inner plug 12 that matches the bottle neck of commercially available bottled water is provided to ensure that the water in the bottled water will not leak out from the outside of the inner plug after the bottle neck and the inner plug 12 are engaged. At the bottom of the blind hole, in this example, an eccentric mode is used to set the water outlet 4 water outlet channel. The inlet of the water outlet channel is located within the inner diameter coverage area of the inner plug 12, and the water outlet channel is located in the middle of the longitudinal solid part of the tray 2. A pressure reducing vent 3 is provided laterally. The transverse hole is a blind hole, which can be manufactured by molding (for plastic materials), casting (for metal materials), or by first machining the process hole and then sealing it. A vertical hole for the pressure-reducing vent 3 is formed on the upper surface of the tray 2, outside the protrusion of the water inlet 1. The lower part connects to the transverse hole of the pressure-reducing vent 3, while the upper part is open. In this example, the diameter of the pressure-reducing vent 3 is much smaller than the diameter of the water outlet channel or the inner hole of the water inlet 1, similar to the air inlet pipe of an existing hospital infusion system, to prevent negative pressure from forming inside the bottle when water flows out, thus hindering the outflow of water. In this example, a protrusion is set on the bottom of the tray 2 as the outlet of the water outlet 4. The shape of the protrusion matches the water inlet of the capsule coffee machine. A hole is set on the lower surface of the protrusion as the lower section of the water outlet channel, connecting to the upper section of the water outlet channel located inside the tray 2. This completes the implementation of this utility model.
[0017] In application, insert a commercially available bottled water bottle (usually common in this industry) with the bottle opening facing down into the water inlet 1, and tighten the external water bottle through the thread 11. At this time, the inner plug 12 prevents water from overflowing. Insert the water outlet 4 into the capsule coffee machine's water supply interface. Water will be drawn into the capsule coffee machine by itself, and the air pressure inside the external water bottle will decrease, blocking the water flow. At the same time, air will enter through the pressure relief vent 3 to maintain the air pressure inside and outside the external water bottle, enabling continuous water supply. Due to its weight and high center of gravity, the water outlet 4 of the full water bottle will shift (tilt), causing the external water bottle to tip over. At this time, the tray 2 will support the bottled water bottle and stabilize it from tipping over, relying on the capsule coffee machine's water supply interface on its lower surface. The external bottle can be easily connected or removed, making it convenient to use.
Claims
1. A capsule coffee machine bottle neck conversion water supply device, characterized in that: The aforementioned water supply conversion device includes a water inlet, a pressure-reducing vent, a tray, and a water outlet. The water inlet is located on the tray and protrudes from the upper surface of the tray. An external bottle neck thread is provided inside the water inlet. This external bottle neck thread is an internal thread located on the inner wall of the water inlet hole, matching the bottle neck of an external bottle of water, allowing the bottle neck to be screwed onto the water inlet. An inner plug is provided at the bottom of the water inlet. The size and shape of the inner plug match the inner diameter of the bottle neck of the external bottle of water, preventing water leakage from the joint between the inner plug and the bottle neck. The pressure-reducing vent is located on the tray, with one end connected to the water outlet. The tray is connected to the outside air of the tray surface, which can eliminate the negative pressure generated in the bottled water installed at the water inlet; the tray is set between the water inlet and the water outlet and is larger than the cross-sectional area of the water inlet and the water outlet. After installation, it can stabilize the center of gravity of the inverted bottled water and reduce water overflow caused by the displacement of the water bottle; the water outlet is set at the bottom of the tray and includes a water outlet channel and a water outlet; one end of the water outlet channel is connected to the water inlet and the other end is connected to the water outlet on the lower surface of the tray, and then connected to the water inlet of the capsule coffee machine; the water outlet is set at the lower surface of the tray and is connected to the water outlet channel.
2. The capsule coffee machine bottle neck conversion water supply device according to claim 1, characterized in that: The water inlet is located on the upper surface of the tray and protrudes from the upper surface of the tray.
3. The capsule coffee machine bottle neck conversion water supply device according to claim 1, characterized in that: The inner plug is a thin-walled cylindrical body.
4. The capsule coffee machine bottle neck conversion water supply device according to claim 1, characterized in that: The cross-sectional shape and size of the tray match the shape and size of the installation position of the water inlet of the capsule coffee machine.
5. A capsule coffee machine bottle neck conversion water supply device according to claim 1, characterized in that: The diameter of the pressure-reducing vent is smaller than the diameter of the water outlet channel.