CN219515975U - Rotary sealing structure of pressure brewing cavity - Google Patents

Abstract

The utility model discloses a rotary sealing structure of a pressure brewing cavity, which is characterized by comprising a shell bracket and a coffee brewing core piece arranged in the shell bracket, wherein the coffee brewing core piece is provided with a brewing cavity and a rotary shaft tube, and the rotary shaft tube is communicated with the brewing cavity; the end of the shell bracket is provided with a positioning shaft hole for allowing the rotating shaft tube to penetrate, and a connecting pipe assembly connected with the rotating shaft tube in a matched mode, the connecting pipe assembly is externally connected with a water pump, and a first sealing ring is arranged between the connecting pipe assembly and the rotating shaft tube for sealing. The utility model has convenient disassembly, assembly and maintenance and good stability.

Description

Rotary sealing structure of pressure brewing cavity

Technical Field

The utility model relates to the technical field of coffee machines, in particular to a rotary sealing structure of a pressure brewing cavity of a coffee machine.

Background

At present, coffee is a daily leisure drink for people, and a coffee machine is also purchased and used by people as a common household appliance. In a general coffee machine, water is sprayed to coffee particles by a nozzle, and the water and the coffee particles are mixed to finish brewing coffee. For example, the Chinese patent grant publication number is CN217565700U, a separated pressure coffee machine comprises a cup body, a cylinder body and a vacuum generator, wherein a material cavity is arranged in the cup body, the top of the material cavity is opened, and a discharge nozzle is arranged at the bottom of the material cavity; the cylinder body is arranged at the top of the cup body, a first piston plate, a first supporting plate and a second piston plate are sequentially arranged in the cylinder body from top to bottom, the first supporting plate is fixed with the cylinder body, and the first piston plate and the second piston plate are connected through a connecting rod penetrating through the first supporting plate; the first piston plate is in sliding contact with the circumferential inner wall of the cylinder body, and seals the cylinder body into an elastic cavity together with the first supporting plate; the connecting rod extends downwards into the material cavity, and the second piston plate is matched with the material cavity and is in sliding fit with the circumferential inner wall of the material cavity. In the structure, the vacuum generator is communicated with the elastic cavity and is used for vacuumizing or decompressing the elastic cavity, so that the dissolving effect of coffee particles is good, and the brewing concentration of coffee is high. However, the coffee machine has the defects that the coffee machine is required to be provided with a vacuum generator, the cost is high, and the disassembly, the assembly and the maintenance are inconvenient, so that the coffee machine needs to be further improved.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides a rotary sealing structure of a pressure brewing cavity, which is convenient to assemble, disassemble and maintain and has a good sealing effect.

The utility model adopts the following technical proposal to realize the aim: the utility model provides a rotatory seal structure of pressure brewing chamber, its characterized in that includes shell support and the coffee that sets up in it dash and steep the core piece, and coffee dashes and steep the core piece and be provided with brewing chamber and rotation central siphon, and rotation central siphon communicates with brewing chamber.

The end of the shell bracket is provided with a positioning shaft hole for allowing the rotary shaft tube to penetrate, and a connecting pipe assembly connected with the rotary shaft tube in a matched mode, the connecting pipe assembly is externally connected with a water pump, a first sealing ring is arranged between the connecting pipe assembly and the rotary shaft tube for sealing, and in the rotating process, the rotary shaft tube is communicated with the brewing cavity for rotating together, and the connecting pipe assembly can be kept motionless.

As a further explanation of the above scheme, the connecting pipe assembly comprises a transition connecting pipe fitting and a connecting pipe which is in plug-in fit with the transition connecting pipe fitting, and a second sealing ring is arranged between the connecting pipe and the transition connecting pipe fitting for sealing; the transition connecting pipe fitting and the shell support are of an integrated structure, and the transition connecting pipe fitting is communicated with the positioning shaft hole.

Or, transition connection pipe fitting movable mounting is on the shell support, and transition connection pipe fitting has the splicing pipe section to insert in the rotation central siphon, and first sealing washer setting is between splicing pipe section and rotation central siphon, and the rotation leakproofness is good.

Further, two first sealing rings are arranged between the connecting pipe assembly and the rotating shaft pipe, and in the rotating process, the rotating shaft pipe and the connecting pipe assembly keep balanced rotating sealing, and a certain distance is kept between the two first sealing rings.

Further, the end part of the transition connecting pipe fitting is provided with a counter bore, a lateral clamping position and a buckle are arranged outside the counter bore, the connecting pipe is provided with a supporting convex edge corresponding to the counter bore, and the buckle is abutted against the supporting convex edge to be fastened in the counter bore.

Further, the transition connecting pipe fitting comprises a transition connecting pipe body, an anti-rotation positioning block and a positioning edge, wherein the anti-rotation positioning block and the positioning edge are arranged on the side part of the transition connecting pipe body, an anti-rotation positioning hole which is matched with the anti-rotation positioning block in a concave-convex mode is formed in the side part of the positioning shaft hole, so that the transition connecting pipe body can be clamped on the shell bracket, and the connecting pipe assembly is prevented from being driven to rotate together in the rotating process of the rotating shaft pipe.

Further, the shell support comprises a rotating support and a connecting positioning frame, the connecting positioning frame is arranged at the end part of the rotating support, the connecting pipe assembly is connected to the connecting positioning frame, and the rotating support is provided with a cavity for accommodating the coffee brewing core piece.

Further, a positioning cover and a handle are arranged at the side end of the coffee brewing core piece, the handle is connected to the positioning cover, an annular groove is arranged at the outer edge of the positioning cover, and a convex edge is arranged at the side end edge of the coffee brewing core piece and is clamped with the annular groove; the side of the cavity of the rotating bracket is provided with an opening, and the edge of the opening is provided with a supporting frame which is correspondingly matched with the positioning cover.

Further, a toothed ring is sleeved outside the rotary shaft tube, a motor is externally connected to the toothed ring through a gear transmission mechanism, the whole coffee brewing core piece is driven to rotate through the motor, and the rotary shaft tube and the connecting tube assembly are in relative rotation and are in sealing connection.

The beneficial effects achieved by adopting the technical proposal of the utility model are that.

According to the utility model, the brewing cavity and the rotary shaft tube are arranged in the coffee brewing core piece, the positioning shaft hole for allowing the rotary shaft tube to penetrate is arranged at the end part of the shell support, and the connecting pipe assembly is connected and matched with the rotary shaft tube, the connecting pipe assembly is externally connected with the water pump, liquid with certain pressure can be introduced, the first sealing ring is arranged between the connecting pipe assembly and the rotary shaft tube for sealing, the rotary shaft tube is communicated with the brewing cavity for rotation together in the rotating process, the connecting pipe assembly can be kept motionless, the whole sealing connection structure is compact, and the disassembly and the maintenance are convenient.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic view of a connection pipe assembly mounting structure according to the present utility model.

Fig. 3 is a schematic view of the installation structure of the connecting pipe assembly of the present utility model.

Fig. 4 is a schematic view of a connection structure between a connection pipe assembly and a housing bracket according to the present utility model.

Fig. 5 is a schematic view showing a connection structure of the coffee brewing core and the connecting tube assembly of the present utility model.

Fig. 6 is a cross-sectional view of the present utility model.

Fig. 7 is a cross-sectional view of example 2.

Reference numerals illustrate: 1. the coffee brewing machine comprises a shell support 1-1, a rotating support 1-2, a connecting positioning frame 1-3, a positioning shaft hole 1-31, an anti-rotation positioning hole 1-4, an opening 2, a coffee brewing core piece 2-1, a brewing cavity 2-2, a rotating shaft tube 2-3, a filter plate 2-4, a convex edge 3, a toothed ring 4, a connecting pipe component 4-1, a transition connecting pipe piece 4-11, a counter bore 4-12, a lateral clamping position 4-13, a buckle 4-14, a transition connecting pipe main body 4-15, an anti-rotation positioning block 4-16, a positioning edge 4-2, a connecting pipe 4-21, a supporting convex edge 5, a first sealing ring 6, a positioning cover 6-1, an annular groove 7, a handle 8 and a second sealing ring.

Detailed Description

In the description of the present utility model, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the utility model, "at least" means one or more, unless clearly specifically defined otherwise.

In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.

The following description of the specific embodiments of the present utility model is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present utility model are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.

Example 1

As shown in fig. 1 to 6, the present utility model is a rotary seal structure of a pressure brewing chamber, which comprises a housing bracket 1 and a coffee brewing core 2 arranged therein, wherein the housing bracket 1 comprises a rotary bracket 1-1 and a connecting positioning frame 1-2, and in the embodiment, the rotary bracket and the connecting positioning frame are separated, but can be designed as an integral structure according to the requirement. The coffee brewing core piece is provided with a brewing cavity 2-1 and a rotary shaft tube 2-2, and the rotary shaft tube is communicated with the brewing cavity; the whole brewing cavity is semi-elliptic, a filter plate 2-3 is arranged in the brewing cavity, and a rotary shaft tube is led out from the side part of the brewing cavity. The rotary shaft tube 2-2 is sleeved with a toothed ring 3, the toothed ring is externally connected with a motor through a gear transmission mechanism, and the motor drives the coffee brewing core piece to integrally rotate. The end of the shell bracket 1 is provided with a positioning shaft hole 1-3 for allowing the rotary shaft tube to penetrate, and a connecting pipe assembly 4 connected and matched with the rotary shaft tube, the connecting pipe assembly is externally connected with a water pump, two first sealing rings 5 are arranged between the connecting pipe assembly and the rotary shaft tube for sealing, in the rotating process, the rotary shaft tube is communicated with the brewing cavity for rotation together, a certain distance is kept between the two first sealing rings for sealing, and the connecting pipe assembly can be kept motionless.

The connecting positioning frame is arranged at the end part of the rotating bracket, the connecting pipe assembly 4 is connected to the connecting positioning frame, and the rotating bracket 1 is provided with a cavity for accommodating the coffee brewing core piece. The side end of the coffee brewing core piece is provided with a positioning cover 6 and a handle 7, and the handle is connected to the positioning cover, so that the coffee brewing core piece can be conveniently put into the rotary bracket or taken out from the rotary bracket; the outer edge of the positioning cover 6 is provided with an annular groove 6-1, and the side end edge of the coffee brewing core piece is provided with a convex edge 2-4 which is clamped with the annular groove, so that the coffee brewing core piece is convenient to assemble and disassemble; the side of the cavity of the rotating support is provided with openings 1-4, and the edges of the openings are provided with supporting frames which are correspondingly matched with the positioning cover, so that the coffee brewing core piece can rotate in the cavity stably.

The connecting pipe assembly 4 comprises a transition connecting pipe fitting 4-1 and a connecting pipe 4-2 which is in plug-in fit with the transition connecting pipe fitting, and a second sealing ring 8 is arranged between the connecting pipe and the transition connecting pipe fitting for sealing; in this embodiment, transition connection pipe fitting movable mounting is on the shell support, and transition connection pipe fitting has the joint pipe section to insert in the rotation central siphon, and first sealing washer setting is between joint pipe section and rotation central siphon, and the rotation leakproofness is good. The end of the transition connecting pipe fitting is provided with a counter bore 4-11, a lateral clamping position 4-12 and a buckle 4-13 are arranged outside the counter bore, the lateral clamping position is two clamping holes outside the counter bore, the buckle is a U-shaped opening and is just inserted into the clamping holes, the connecting pipe 4-2 is provided with a supporting convex edge 4-21 corresponding to the counter bore, and the buckle abuts against the supporting convex edge to enable the connecting pipe to be fastened in the counter bore.

The transition connecting pipe fitting 4-1 comprises a transition connecting pipe body 4-14, an anti-rotation positioning block 4-15 and a positioning edge 4-16, wherein the anti-rotation positioning block 4-15 and the positioning edge 4-16 are arranged on the side part of the transition connecting pipe body, and an anti-rotation positioning hole 1-31 which is in concave-convex fit with the anti-rotation positioning block 4-15 is arranged on the side part of the positioning shaft hole 1-3, so that the transition connecting pipe body can be clamped on a shell bracket, and the connecting pipe assembly is prevented from being driven to rotate together in the rotating process of the rotating shaft pipe.

Example 2

In this embodiment, as shown in fig. 7, the transitional coupling pipe 4-1 is integrally formed with the housing bracket 1, and the transitional coupling pipe is communicated with the positioning shaft hole.

Compared with the prior art, the coffee brewing core piece is provided with the brewing cavity and the rotary shaft tube, the end part of the shell bracket is provided with the positioning shaft hole for allowing the rotary shaft tube to penetrate, and the connecting pipe assembly is connected with the rotary shaft tube in a matched mode, the connecting pipe assembly is externally connected with the water pump, the first sealing ring is arranged between the connecting pipe assembly and the rotary shaft tube for sealing, the rotary shaft tube is communicated with the brewing cavity for rotation together in the rotating process, the connecting pipe assembly can be kept motionless, the whole sealing connection structure is compact, and the disassembly and the maintenance are convenient.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.

Claims (8)

1. The rotary sealing structure of the pressure brewing cavity is characterized by comprising a shell bracket and a coffee brewing core piece arranged in the shell bracket, wherein the coffee brewing core piece is provided with a brewing cavity and a rotary shaft tube, and the rotary shaft tube is communicated with the brewing cavity;

the end of the shell bracket is provided with a positioning shaft hole for allowing the rotating shaft tube to penetrate, and a connecting pipe assembly connected with the rotating shaft tube in a matched mode, the connecting pipe assembly is externally connected with a water pump, and a first sealing ring is arranged between the connecting pipe assembly and the rotating shaft tube for sealing.

2. The rotary seal structure of a pressure brewing chamber according to claim 1, wherein the connecting pipe assembly comprises a transitional connecting pipe fitting and a connecting pipe which is in plug-in fit with the transitional connecting pipe fitting, and a second sealing ring is arranged between the connecting pipe and the transitional connecting pipe fitting for sealing; the transition connecting pipe fitting and the shell bracket are of an integrated structure, and the transition connecting pipe fitting is communicated with the positioning shaft hole;

or, the transition connecting pipe fitting is movably arranged on the shell bracket, the transition connecting pipe fitting is provided with a connecting pipe section which is inserted into the rotating shaft tube, and the first sealing ring is arranged between the connecting pipe section and the rotating shaft tube.

3. The rotary seal structure of a pressure brewing chamber according to claim 2, wherein a counter bore is arranged at the end part of the transitional connecting pipe fitting, a lateral clamping position and a buckle are arranged outside the counter bore, a supporting convex edge corresponding to the counter bore is arranged on the connecting pipe, and the buckle is abutted against the supporting convex edge.

4. The rotary seal structure of a pressure brewing chamber according to claim 2, wherein the transition connecting pipe fitting comprises a transition connecting pipe body, an anti-rotation positioning block and a positioning edge, wherein the anti-rotation positioning block and the positioning edge are arranged on the side part of the transition connecting pipe body, and an anti-rotation positioning hole which is in concave-convex fit with the anti-rotation positioning block is arranged on the side part of the positioning shaft hole.

5. The rotary seal structure of a pressure brewing chamber according to claim 1, wherein the housing bracket comprises a rotary bracket and a connecting positioning frame, the connecting positioning frame is arranged at the end part of the rotary bracket, the connecting pipe assembly is connected to the connecting positioning frame, and the rotary bracket is provided with a cavity for accommodating the coffee brewing core.

6. The rotary seal structure of a pressure brewing chamber according to claim 5, wherein a positioning cover and a handle are arranged at the side end of the coffee brewing core piece, the handle is connected to the positioning cover, an annular groove is arranged at the outer edge of the positioning cover, and a convex edge is clamped with the annular groove at the side end edge of the coffee brewing core piece; the side of the cavity of the rotating bracket is provided with an opening, and the edge of the opening is provided with a supporting frame which is correspondingly matched with the positioning cover.

7. The rotary seal structure of a pressure brewing chamber according to claim 1, wherein a toothed ring is sleeved outside the rotary shaft tube, and the toothed ring is externally connected with a motor through a gear transmission mechanism.

8. The rotary seal structure of a pressure brewing chamber according to claim 1, wherein two first sealing rings are provided between the connecting tube assembly and the rotary shaft tube, and the rotary shaft tube and the connecting tube assembly maintain balanced rotary seal during rotation, and a certain distance is maintained between the two first sealing rings.