A coffee maker boiler probe

Abstract

The utility model relates to coffee machine accessory technical field, concretely relates to a kind of coffee machine cooking vessel probe. Including shell and probe stem, the bottom of the shell is provided with aperture, inside is equipped with sensor, below flange nut is fixedly connected, the inside of the flange nut is equipped with internal thread, the top of the probe stem is connected with sensor by flange nut and aperture, the top of the probe stem is equipped with metal sleeve, compared with prior art, the utility model is through metal sleeve and soft rubber layer composite structure, effectively solve the stress concentration problem of probe stem root, enhance the bending resistance;Soft rubber layer is dispersed mechanical stress and vibration energy by elastic buffering effect, effectively delays material fatigue;Meanwhile, the structure also realizes double sealing protection, prevents liquid invasion sensor area, and modular design makes maintenance change more convenient, overall greatly improves the service life and reliability of probe under the working condition of frequent plug and unplug.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine accessories technology, specifically to a coffee machine brewer probe. Background Technology

[0002] The probe in the coffee machine's brewer is a key component used to detect liquid level and temperature. Its reliability and stability directly affect the coffee machine's lifespan and cooking effect. In actual use, due to the need for regular cleaning and maintenance, the probe needs to be frequently removed and installed from the brewer, which places high demands on the probe's structural strength. In existing technology, because the thermal expansion coefficients of plastic materials and metal probe rods are different, internal stress is generated when the temperature changes. In addition, the fatigue resistance of plastic materials is poor, and cracks are prone to occur and propagate at the stress concentration point at the root, eventually leading to the breakage of the shell root.

[0003] The prior art discloses an integrated probe and test probe module, with publication number CN222838113U. This patent discloses an integrated probe, including a connecting plate, a probe shell and a sealing plate. The probe shell is provided with a limiting ring, a spring, a connecting rod and a probe. Although this structure improves the stability of the probe movement through the spring and the limiting ring, it is mainly suitable for test probe modules and is not suitable for the high temperature and high humidity environment of coffee machine brewers. Utility Model Content

[0004] To address the aforementioned technical problems or one of the technical problems existing in the prior art, this utility model discloses a coffee machine brewer probe, including a housing and a probe rod. The bottom of the housing has an opening, and a sensor is installed inside. A flange nut is fixedly connected below the sensor. The inner side of the flange nut has an internal thread. The top of the probe rod passes through the flange nut and the opening and connects to the sensor. A metal sleeve is fitted on the top of the probe rod. The cylindrical surface of the top of the metal sleeve has an external thread, which is screwed to the internal thread of the flange nut. A soft rubber layer is provided between the metal sleeve and the probe rod. The soft rubber layer is fixed to the inner wall of the metal sleeve and has an interference fit with the probe rod.

[0005] Furthermore, the housing is circular and has an internal mounting groove, in which the sensor is inserted and fixed.

[0006] Furthermore, the housing includes an upper shell and a lower shell, which are connected by a snap-fit ​​groove on the edge, and the mounting groove is fixed inside the upper shell.

[0007] Furthermore, the sensor includes a liquid level sensor and a temperature sensor.

[0008] Furthermore, the opening is coaxially connected to the flange nut.

[0009] Compared with existing technologies, this invention effectively solves the stress concentration problem at the root of the probe rod through a composite structure of a metal sleeve and a soft rubber layer: the metal sleeve provides reliable rigid support and overload protection for the probe rod, significantly enhancing its bending resistance; the soft rubber layer disperses mechanical stress and vibration energy through elastic buffering, effectively delaying material fatigue; at the same time, this structure also achieves double sealing protection to prevent liquid from entering the sensor area, and the modular design makes maintenance and replacement more convenient, significantly improving the overall service life and reliability of the probe under frequent insertion and removal conditions. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0012] Please see Figure 1 , 2The technical solution adopted by this utility model is as follows: a coffee machine brewer probe, including a housing 1 and a probe rod 2. The housing 1 is the main support structure, providing installation space and protection for the internal components. As a detection extension component of the sensor 5, it transmits information such as liquid level and temperature inside the brewer to the sensor 5. The bottom of the housing 1 has an opening 12, providing a passage for the probe rod 2 to pass through, so that the probe rod 2 can be connected to the housing 1. The internal sensor 5 is used to detect relevant parameters inside the coffee machine's brewing unit. It includes a liquid level sensor to detect the liquid level and a temperature sensor to detect the liquid temperature, providing data support for the coffee machine's operation. A flange nut 4 is fixed below to secure the entire probe within the screw hole of the brewing unit. The flange nut 4 has an internal thread on its inner side. The top of the probe rod 2 passes through the flange nut 4 and the opening 12 to connect with the sensor 5. A metal sleeve 3 is fitted onto the top of the probe rod 2 to enhance the stability of the overall probe structure. The cylindrical surface at the top of the metal sleeve 3 has an external thread, which is screwed into the internal thread of the flange nut 4. A soft rubber layer 31 is provided between the metal sleeve 3 and the probe rod 2, serving a sealing function to prevent liquid or impurities inside the brewing unit from entering the housing 1 through the gap and damaging the sensor 5. It also enhances the tightness of the connection between the probe rod 2 and the metal sleeve 3. The soft rubber layer 31 is fixed to the inner wall of the metal sleeve 3 and has an interference fit with the probe rod 2.

[0013] Preferably, the housing 1 is circular. The circular shape reduces sharp edges and corners, which can avoid damage to other surrounding components. An internal mounting groove 11 is fixedly connected. The sensor 5 is inserted and fixed in the mounting groove 11. The mounting groove 11 is used to insert and fix the sensor 5, ensuring that the sensor 5 is stably installed in the housing 1 and avoiding displacement of the sensor 5 due to vibration or other factors, which would affect the detection accuracy.

[0014] Based on this, the housing 1 includes an upper half-shell 14 and a lower half-shell 15, which are connected by a snap-fit ​​groove 13 on the edge. The mounting groove 11 is fixed inside the upper half-shell 14, together forming the housing 1, which facilitates the assembly and disassembly of the housing 1 and provides convenience for installing the sensor 5.

[0015] It should be noted that the sensor 5 includes a liquid level sensor and a temperature sensor.

[0016] In addition, the opening 12 is coaxially connected with the flange nut 4.

[0017] 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 coffee machine brewer probe, comprising a housing (1) and a probe rod (2), characterized in that, The bottom of the housing (1) has an opening (12) and a sensor (5) is installed inside. A flange nut (4) is fixed below it. The inner side of the flange nut (4) has an internal thread. The top of the probe rod (2) passes through the flange nut (4) and the opening (12) and is connected to the sensor (5). A metal sleeve (3) is fitted on the top of the probe rod (2). The cylindrical surface of the top of the metal sleeve (3) has an external thread and is screwed to the internal thread of the flange nut (4) through the external thread. A soft rubber layer (31) is provided between the metal sleeve (3) and the probe rod (2). The soft rubber layer (31) is fixed to the inner wall of the metal sleeve (3) and has an interference fit with the probe rod (2).

2. The coffee machine brewing probe according to claim 1, characterized in that, The housing (1) is circular and has an internal mounting groove (11) fixedly connected to it. The sensor (5) is inserted and fixed in the mounting groove (11).

3. A coffee machine brewer probe according to claim 2, characterized in that, The housing (1) includes an upper half shell (14) and a lower half shell (15), which are engaged and connected by a groove (13) on the edge, and the mounting groove (11) is fixed inside the upper half shell (14).

4. A coffee machine brewer probe according to claim 1, characterized in that, The sensor (5) includes a liquid level sensor and a temperature sensor.

5. A coffee machine brewer probe according to claim 1, characterized in that, The opening (12) is coaxially connected with the flange nut (4).

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