Upper hammerhead liquid outlet structure of brewing device

Abstract

The utility model relates to the technical field of brewing beverage dispensers, in particular to a liquid outlet structure of an upper hammer head of a brewing device, which solves the problems of beverage quality reduction and inconvenience in product maintenance caused by the existing liquid outlet structure, and adopts the scheme that a liquid outlet channel is arranged on the upper hammer head, and support bulges for supporting a detachable filter screen are integrally distributed on the hammer surface of the upper hammer head; the detachable structure of the filter screen and the upper hammer head is that external threads are arranged on the periphery of the lower section of the upper hammer head, the upper hammer head is provided with a filter cover assembly, the filter cover assembly comprises a threaded ring and the filter screen, the threaded ring is in a circular ring shape, and the filter screen is arranged on the threaded ring. The upper section of the threaded ring is an internal thread part screwed with the external thread of the upper hammer head, the lower section of the threaded ring is a filter screen fixing part for fixing the filter screen, the filter screen fixing part is provided with a sinking table inwards from the outer end face, the filter screen is disc-shaped, and the outer ring of the filter screen is pressed on the step of the sinking table of the filter screen fixing part and is in welded connection with the threaded ring. Furthermore, the distance between the outer end face of the filter screen and the outer end face of the filter screen fixing part is 0-0.2 mm.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brewing beverage machine, especially a hammer head liquid outlet structure on brewing device. BACKGROUND

[0002] Taking coffee brewing device as an example, the parts of the brewing device include upper hammer head, brewing cylinder and lower hammer head, etc., hot water enters the brewing cylinder from the lower hammer head in one way, and at the same time when the upper hammer head and the lower hammer head are close to each other, the brewed beverage is squeezed to flow out from the upper hammer head, and generally, the upper hammer head slides in the brewing cylinder in the form of a piston, and the lower hammer head can also slide in the brewing cylinder in the form of a piston to push out the dregs cake, or the lower hammer head can be stationary, and the dregs cake is pushed out by a dregs pushing rod slidingly arranged in the lower hammer head.

[0003] In the aspect of the liquid outlet structure of the upper hammer head, one existing structure is shown in the piston structure of a coffee machine brewing unit disclosed in Chinese patent publication No. CN212368800U, and the liquid outlet structure is shown in the accompanying drawings. Figure 2 As shown in the accompanying drawings, the filter screen is detachably fixed to the end of the piston body through the fixing ring, the outer peripheral surface of the end of the piston body is provided with a first annular groove, and the convex projection provided on the inner peripheral surface of the fixing ring is clamped into the first annular groove, and the disadvantages of this structure are as follows: 1. affecting the quality of the beverage: a right-angle step is formed between the pressing ring of the fixing ring and the filter screen, and the existence of the step will cause coffee dregs or tea dregs to be left after the extraction of coffee or tea is completed, which will affect the flavor of the next cup of beverage; 2. inconvenient to repair: the structure that the fixing ring is clamped into the groove cannot quickly remove the filter screen for cleaning or replacement when the filter screen is blocked, and the fixing ring is also prone to damage. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a hammer head liquid outlet structure on a brewing device to overcome the problems that the existing liquid outlet structure will cause the quality of the beverage to decrease and make the product inconvenient to repair.

[0005] The technical scheme adopted by the utility model to solve the technical problem is: a hammer head liquid outlet structure on a brewing device, which has an upper hammer head, the upper hammer head is provided with a liquid outlet channel, the hammer surface of the upper hammer head is integrally provided with support protrusions for supporting a detachable filter screen, the gap between adjacent support protrusions is connected with the filter screen mesh and the liquid outlet channel, the detachable structure of the filter screen and the upper hammer head is that the outer periphery of the lower section of the upper hammer head is provided with external threads, the brewing device has a filter cover assembly, the filter cover assembly includes a threaded ring and a filter screen, the threaded ring is annular, the upper section of the threaded ring is an internal thread part that is screwed with the external threads of the upper hammer head, and the lower section is a filter screen fixing part for fixing the filter screen, the filter screen fixing part has a sink from the outer end surface to the inside, the filter screen is a circular sheet, and the outer ring of the filter screen is pressed on the step of the sink of the filter screen fixing part and is welded with the threaded ring.

[0006] Specifically, in order to avoid residue accumulation, the distance between the outer end surface of the filter screen and the outer end surface of the filter screen fixing part is 0-0.2mm.

[0007] Specifically, in order to make the filter screen and the threaded ring firmly welded, the filter screen has an outer ring-shaped non-porous welding area and an inner ring-shaped porous filtering area.

[0008] Specifically, the threaded ring is a metal threaded ring, the filter screen is a metal filter screen, and the filter screen is laser welded to the threaded ring on the sink step surface and / or the sink inner circumferential surface of the filter screen fixing part.

[0009] Specifically, also in order to avoid residue accumulation, the outer diameter of the filter screen is 0.01-0.2mm smaller than the sink hole diameter of the filter screen fixing part.

[0010] Specifically, the filter screen has a double-layer structure, an inner filter screen with larger filter holes and a thicker thickness, and an outer filter screen with smaller filter holes and a thinner thickness.

[0011] The beneficial effects of the present application are:

[0012] 1. Simple process: only need to tighten the machined filter cover assembly with the upper hammer head;

[0013] 2. Reduce the influence of residue on beverage quality: because the filter screen is combined with the threaded ring on the threaded ring end surface to form a filter cover assembly, the influence of residue accumulation on the step is reduced, and the cup quality is more stable;

[0014] 3. Convenient maintenance: if the filter screen is blocked, only need to remove and clean the filter cover assembly, which is convenient to maintain. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 is the cross-sectional view of the brewing device;

[0017] Figure 2 is the cross-sectional view of the upper hammer head liquid outlet structure;

[0018] Figure 3 is Figure 2 the enlarged view of A of

[0019] Fig. 1, upper hammer head, 1-1, support protrusion, 2, liquid outlet channel, 3, filter screen, 3-1, inner filter screen, 3-2, outer filter screen, 4, threaded ring, 4-1, inner threaded part, 4-2, filter screen fixing part, 5, powder falling hopper, 6, lower hammer head, 7, brewing cylinder. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] ATTACHMENT Figure 1 It is the section view of the brewing device, with the upper hammer head 1 fixed on the support, the powder falling hopper 5 swinging, the lower hammer head 6 in the brewing cylinder 7, the brewing cylinder 7 lifting, the lower hammer head 6 keeping static when the brewing cylinder 7 lifting and lifting with the brewing cylinder 7, the hot water being injected into the brewing cylinder 7 from the lower hammer head 6, the brewed beverage being pressed out from the upper hammer head 1, the attachment Figure 2 It shows the liquid outlet structure of the upper hammer head of the brewing device, with the upper hammer head 1, the liquid outlet channel 2 being arranged on the upper hammer head, the support protrusion 1-1 being integrally arranged on the hammer face of the upper hammer head 1 to support the detachable filter screen 3, the gap between the adjacent support protrusions 1-1 being connected with the filter screen 3 and the liquid outlet channel 2, the detachable structure of the filter screen 3 and the upper hammer head 1 being that the outer periphery of the lower section of the upper hammer head 1 is provided with external threads, the filter cover assembly including the threaded ring 4 and the filter screen 3, the threaded ring 4 being a circular ring, as shown in the attachment Figure 3 The upper section of the threaded ring 4 is the inner threaded part 4-1 screwing with the external threads of the upper hammer head 1, and the lower section is the filter screen fixing part 4-2 fixing the filter screen 3, the filter screen fixing part 4-2 having a sink from the outer end face to the inside, the filter screen 3 being a circular sheet, the outer ring of the filter screen 3 being pressed on the step of the sink of the filter screen fixing part 4-2 and welded with the threaded ring 4.

[0022] The distance between the lower end face of the filter screen 3 and the outer end face of the filter screen fixing part 4-2 is 0-0.2mm, and the outer end face of the filter screen 3 is flat with or higher than or lower than the outer end face of the filter screen fixing part 4-2.

[0023] The filter screen 3 has the outer ring annular non-porous welding area and the internal porous filtering area, the threaded ring 4 is a stainless steel threaded ring, the filter screen 3 is a stainless steel filter screen, the filter screen 3 is laser welded with the threaded ring 4 on the step face and / or the inner peripheral face of the sink of the filter screen fixing part 4-2, and the outer surface after welding can be polished.

[0024] The outer diameter of the filter screen 3 is less than the hole diameter of the sink of the filter screen fixing part 4-2 by 0.01-0.2 mm.

[0025] Still see attached Figure 3 The filter screen 3 has a double-layer structure, and the inner filter screen 3-1 has larger filter holes and a larger thickness, and the outer filter screen 3-2 has smaller filter holes and a smaller thickness.

[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A liquid dispensing structure for a brewing device with an upper hammer, wherein the upper hammer has a liquid dispensing channel, and the hammer surface of the upper hammer has integrally distributed support protrusions for supporting a detachable filter screen, the gap between adjacent support protrusions connecting the filter screen mesh and the liquid dispensing channel, characterized in that: The detachable structure of the filter screen and the upper hammer head is that the outer periphery of the lower section of the upper hammer head is provided with external threads, and a filter cover assembly is provided, which comprises a threaded ring and a filter screen.

2. The hammer head liquid outlet structure on the brewing device according to claim 1, characterized in that: The distance between the outer end surface of the filter screen and the outer end surface of the filter screen fixing part is 0-0.2 mm.

3. The hammer head liquid outlet structure on the brewing device according to claim 1, characterized in that: The filter screen has a non-porous welding area with an outer ring shape and a porous filtering area with an inner ring shape.

4. The hammer head liquid outlet structure on the brewing device according to claim 1, characterized in that: The threaded ring is a metal threaded ring, and the filter screen is a metal filter screen.

5. The hammer head liquid outlet structure on the brewing device according to claim 1, characterized in that: The outer diameter of the filter screen is smaller than the hole diameter of the sink hole of the filter screen fixing part by 0.01-0.2 mm.

6. The hammer head liquid outlet structure on the brewing device according to claim 1, characterized in that: The filter screen has a double-layer structure, including an inner filter screen with larger filter holes and a greater thickness, and an outer filter screen with smaller filter holes and a smaller thickness.

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