Impurity prevention structure device

Abstract

The utility model discloses an anti-impurity structure device which is arranged on a pressure gauge pipeline of a coffee machine, two ends of the anti-impurity structure device are respectively communicated with a brewing pipeline of the coffee machine and a connector of a pressure gauge, the anti-impurity structure device comprises a valve body, and an inner cavity of the valve body is provided with an elastic sealing piece intersecting with the trend of the pressure gauge pipeline. The pipeline on the side, connected with the brewing pipeline, of the elastic sealing piece is an upper channel, the pipeline on the side, connected with the connector of the pressure gauge, of the elastic sealing piece is a lower channel, and liquid is fixedly sealed in the lower channel. According to the impurity-preventing structure device, the upper channel and the lower channel are formed through the separation of the elastic sealing piece arranged in the inner cavity of the valve body, water in a brewing pipeline acts on the elastic sealing piece through the upper channel, and pressure is transmitted to the pressure gauge through liquid fixedly sealed in the lower channel, so that measurement of water pressure is completed; the elastic sealing sheet prevents water mixed with particles such as coffee powder from flowing back into the pressure gauge, thereby preventing the pressure gauge from being blocked and misaligned or damaged, improving the accuracy of the pressure gauge and prolonging the service life of the pressure gauge.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to an impurity-proof structural device. Background Art

[0002] Pressure coffee machines use high-temperature and high-pressure water to extract coffee powder, which can produce coffee with rich flavor and oil, and are loved by many users. Among them, water pressure is a key factor affecting the extraction effect. Therefore, pressure coffee machines will be equipped with a pressure gauge on the operation panel to observe and read the water pressure during extraction. The pressure gauge is generally set on the branch of the pipeline connecting the water pump of the coffee machine and the brewing mechanism. Therefore, it is easy for water mixed with coffee powder and other particles in the brewing pipeline to flow back into the pressure gauge, causing the pressure gauge to be blocked by coffee powder and other particles, causing inaccurate testing or damage to the pressure gauge.

[0003] CN202122376344.0 discloses an instant high-precision temperature-controlled pressure coffee machine, including a shell, a water tank is provided on one side of the shell, a water outlet valve is provided at the bottom of the water tank, a water outlet valve seat, a pressure water pump, and an instant boiler are connected in sequence in the shell through a pipeline, the water outlet valve is connected to the water outlet valve seat, a first temperature sensor is provided in the water outlet valve seat, a stainless steel water flow channel is provided between the water inlet and the water outlet of the instant boiler, a second temperature sensor is provided at the water outlet of the instant boiler, an extraction cup holder and an extraction cup are provided on one side of the water outlet of the instant boiler, and a pressure gauge connected to the pressure water pump is provided on the top cover side wall of the shell. In this technical solution, the water pump is connected to both the extraction mechanism and the pressure gauge. During the extraction process, hot water mixed with particles such as coffee powder is easily backflowed along the pipeline into the pressure gauge, causing the pressure gauge to be blocked by particles such as coffee powder, causing the test to be inaccurate or the pressure gauge to be damaged. Utility Model Content

[0004] The utility model aims to provide an anti-impurity structure device to solve the problem that a water pump in a coffee machine is connected to both an extraction mechanism and a pressure gauge, and hot water mixed with particles such as coffee powder is easily backflowed along the pipeline into the pressure gauge during the extraction process, causing the pressure gauge to be blocked by particles such as coffee powder, resulting in test inaccuracy or damage to the pressure gauge, so as to overcome the deficiencies of the prior art.

[0005] The utility model provides an anti-impurity structure device through the following technical scheme, the anti-impurity structure device is arranged on the pressure gauge pipeline of the coffee machine, the two ends of the anti-impurity structure device are respectively connected with the brewing pipeline of the coffee machine and the interface of the pressure gauge, the anti-impurity structure device comprises a valve body, the inner cavity of the valve body is provided with an elastic sealing sheet intersecting with the direction of the pressure gauge pipeline, the pipeline on the side where the elastic sealing sheet is connected to the brewing pipeline of the coffee machine is an upper passage, and the pipeline on the side where the elastic sealing sheet is connected to the interface of the pressure gauge is a lower passage, and liquid is sealed in the lower passage.

[0006] Furthermore, the valve body includes an upper valve cover and a lower valve cover, and the upper valve cover and the lower valve cover are connected by screws.

[0007] Furthermore, the elastic sealing sheet has a thickness ranging from 0.1 to 2.5 mm, preferably 1.0 mm.

[0008] Furthermore, the elastic sealing sheet is made of one of silicone and rubber materials.

[0009] Furthermore, the interfaces of the anti-impurity structure device, the brewing pipeline of the coffee machine and the pressure gauge are all connected by quick connectors.

[0010] The utility model has the following beneficial effects: an anti-impurity structural device is arranged on the pressure gauge pipeline of the coffee machine, and an upper passage connected to the brewing pipeline of the coffee machine and a lower passage connected to the interface of the pressure gauge are separated by an elastic sealing sheet arranged in the inner cavity of the valve body; water in the brewing pipeline acts on the elastic sealing sheet through the upper passage and transmits the pressure to the pressure gauge through the liquid sealed in the lower passage, so that the pressure gauge can normally complete the measurement and display of the water pressure; at the same time, the elastic sealing sheet blocks the water mixed with the particles such as the coffee powder from flowing back into the pressure gauge, so that the pressure gauge is prevented from being blocked by the particles such as the coffee powder to cause the measurement to be inaccurate or the pressure gauge to be damaged, thereby improving the accuracy and service life of the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall schematic diagram of an impurity-proof structural device described in the utility model.

[0012] Figure 2 It is a cross-sectional view of an impurity-proof structural device described in the utility model.

[0013] Figure 3 The figure is a schematic diagram of an explosion of an impurity-proof structural device described in the utility model.

[0014] Figure 4 This is a schematic diagram of a pipeline system of an impurity-proof structural device described in the utility model. DETAILED DESCRIPTION

[0015] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0016] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0017] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0018] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0020] Refer to the following Figure 1-Figure 4 An impurity prevention structure device according to some embodiments of the present application is described.

[0021] An anti-impurity structure device 1 is provided on a pressure gauge pipeline 8 of a coffee machine, and two ends of the anti-impurity structure device 1 are respectively connected to a brewing pipeline 9 of the coffee machine and an interface 16 of a pressure gauge 2, and the anti-impurity structure device 1 comprises a valve body 11, an inner cavity of the valve body 11 is provided with an elastic sealing sheet 12 intersecting with the direction of the pressure gauge pipeline 8, the pipeline on the side where the elastic sealing sheet 12 is connected to the brewing pipeline 9 is an upper passage 6, and the pipeline on the side where the elastic sealing sheet 12 is connected to the interface 16 of the pressure gauge 2 is a lower passage 7, and liquid is sealed in the lower passage 7.

[0022] As attached Figure 4 As shown, when the coffee machine is brewing, the water in the water storage device 4 is transported to the brewing device 5 through the water pump 3, and the coffee powder in the brewing device 5 is brewed into coffee liquid. The pipeline from the water pump 3 to the brewing device 5 is the brewing pipeline 9; the pressure gauge pipeline 8 is a branch of the brewing pipeline 9 with a pressure gauge 2 installed. The extraction pressure when brewing coffee can be obtained by measuring the water pressure entering the brewing device, so as to adjust the extraction pressure to obtain coffee liquid with different tastes.

[0023] Under the existing circumstances, when the coffee machine is working continuously, the frequent start and stop of the water pump 3 will cause the water that has entered the brewing device 5 to flow back along the brewing pipeline 9, and part of it will flow back through the pressure gauge pipeline 8 into the pressure gauge 2. A small amount of coffee powder and other particles will be mixed in the backflowing water, and these particles will gradually accumulate at the interface 16 of the pressure gauge 2, causing the interface 16 to be blocked and affecting the accurate reading of the pressure; if the particles enter the interior of the pressure gauge 2, it will also cause damage or even scrapping.

[0024] In the technical solution, the anti-impurity structure device 1 is arranged on the pressure gauge pipeline 8 of the coffee machine, and the upper passage 6 connected to the brewing pipeline 9 and the lower passage 7 connected to the interface 16 of the pressure gauge 2 are separated by the elastic sealing sheet 12 provided in the inner cavity of the valve body 11. After the water in the brewing pipeline 9 enters the upper passage 6, the water pressure is applied to the elastic sealing sheet 12. The elastic sealing sheet 12 presses the liquid sealed in the lower passage 7 under the action of its own elasticity, thereby transmitting the pressure to the pressure gauge 2, so that the pressure gauge 2 can normally complete the measurement of water pressure. The elastic sealing sheet 12 blocks the water mixed with coffee powder and other particles from flowing back to contact the pressure gauge 2, and avoids the pressure gauge 2 being blocked by coffee powder and other particles, causing measurement inaccuracy or damage.

[0025] The setting direction of the elastic sealing sheet 12 in the inner cavity is to intersect with the direction of the pressure gauge pipeline 8, including oblique intersection, irregular continuous curved surface intersection, preferably vertical intersection; at the same time, in order to make the elastic sealing sheet 12 have a good pressure transmission effect, the elastic sealing sheet can be made of one of the soft sealing materials such as silicone, rubber, etc., and the thickness range of the elastic sealing sheet 12 is 0.1-2.5mm, preferably 1.0mm.

[0026] For ease of use, the liquid sealed in the lower passage 7 is preferably water.

[0027] The valve body 11 includes an upper valve cover 13 and a lower valve cover 14 , which are connected by screws 15 , so that the valve body 11 can be opened to clean and replace the elastic sealing sheet 12 .

[0028] The interfaces 16 of the anti-impurity structure device 1, the brewing pipeline 9 and the pressure gauge 2 are all connected by quick connectors 17, which is convenient for inspection and maintenance of the device.

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

Claims

1. An impurity-proof structural device, characterized in that: The anti-impurity structure device is arranged on the pressure gauge pipeline of the coffee machine, and the two ends of the anti-impurity structure device are respectively connected with the brewing pipeline of the coffee machine and the interface of the pressure gauge. The anti-impurity structure device includes a valve body, and the inner cavity of the valve body is provided with an elastic sealing sheet intersecting with the direction of the pressure gauge pipeline. The pipeline on the side where the elastic sealing sheet is connected to the brewing pipeline of the coffee machine is an upper passage, and the pipeline on the side where the elastic sealing sheet is connected to the interface of the pressure gauge is a lower passage, and liquid is sealed in the lower passage.

2. The impurity-proof structure device according to claim 1, characterized in that: The valve body comprises an upper valve cover and a lower valve cover, and the upper valve cover and the lower valve cover are connected by screws.

3. The impurity-proof structure device according to claim 1, characterized in that: The thickness of the elastic sealing sheet ranges from 0.1 to 2.5 mm.

4. The impurity-proof structure device according to claim 1, characterized in that: The elastic sealing sheet is made of one of silica gel and rubber.

5. The impurity-proof structure device according to claim 1, characterized in that: The interfaces of the anti-impurity structure device, the brewing pipeline of the coffee machine and the pressure gauge are all connected by quick connectors.

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