Hydraulic cavity mechanism of motor guide rod type coffee maker

Abstract

The utility model relates to a hydraulic cavity mechanism of a motor guide rod type coffee brewing device, and aims to solve the technical problem that the self-locking force of a motor and a guide rod is insufficient due to the fact that the stability of a brewing device head is poor in the brewing process in a motor and guide rod combined mode of existing like products. The hydraulic cavity mechanism is characterized in that a penetrating stepping motor of the hydraulic cavity mechanism is arranged at the bottom of an upper support, a large support is arranged at the top of the upper support, a hydraulic outer cavity and a hydraulic inner cavity which are sleeved with each other are arranged in the large support, a hydraulic cavity inner cavity is sleeved with the hydraulic outer cavity, and a sealing ring is arranged on the outer diameter of the hydraulic inner cavity at the sleeved position. The outer diameter of a top cavity opening of the hydraulic inner cavity is limited in the large support, meanwhile, the top cavity opening of the hydraulic inner cavity is connected with a hydraulic pipe, a through hole communicated with the hydraulic inner cavity is formed in the bottom of the hydraulic inner cavity, or an open hole is formed in one side of the sealed and separated hydraulic outer cavity. The hydraulic outer cavity is arranged in the large support and moves up and down through hydraulic changes of the hydraulic inner cavity.

Description

Technical Field

[0001] The utility model relates to a brewer of a full-automatic coffee machine, in particular to a hydraulic chamber mechanism of a motor guide rod type coffee brewer. Background Art

[0002] A fully automatic coffee machine is a household appliance or commercial appliance that automatically makes coffee, integrating the entire process of brewing coffee, including grinding, pressing, filling, brewing, and removing residues. The core components of some existing fully automatic coffee machines are brewers for receiving powder, pressing, brewing, and removing residues, such as the application number 202020831309.6 disclosed in the Chinese patent literature, the authorization announcement date 2021.04.23, and the utility model name "A brewing system for a coffee machine"; some of these brewers are equipped with a gear motor adjustment structure, such as the application number 202310090180.6 disclosed in the Chinese patent literature, the application announcement date 2023.04.14, and the invention name "Coffee machine powder pressing method and brewing unit"; at the same time, some of the brewers are equipped with a gear motor adjustment structure. There is a hydraulic coffee grounds cake making mechanism, such as the application number 201710696053.5 disclosed in the Chinese patent literature, the application publication date 2019.05.17, and the invention name "brewing unit of coffee machine; but the brewer body of the above-mentioned product and similar products rarely drives the brewer head to move up and down in the brewing chamber by the combination of a motor and a guide rod. During the brewing process, the bottom of the brewer head is subjected to a large water pressure by the combination of the motor and the guide rod, resulting in insufficient self-locking force of the motor and the guide rod, which easily causes the motor guide rod to move upward during the brewing process, thereby affecting the brewing effect. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a hydraulic chamber mechanism of a motor-guide rod coffee brewer in the art, so as to solve the technical problem that the motor and guide rod combination of the existing similar products has poor stability of the brewer head during the brewing process, resulting in insufficient self-locking force of the motor and guide rod. The purpose is achieved through the following technical solutions.

[0004] A hydraulic chamber mechanism of a motor guide rod type coffee brewer, the coffee brewer of the hydraulic chamber mechanism comprises a lower brewer assembly and an upper brewer assembly, one side or both sides of a brewer head assembly of the upper brewer assembly are respectively provided with output pipes with both ends extending out of the upper brewer assembly, guide pillars are symmetrically arranged in the brewer head assembly, and the outer diameters of the guide pillars are respectively provided with guide pillar springs, when the brewing chamber of the lower brewer assembly rotates to one side to align with the brewer head assembly, one end of the brewer head assembly passes through the other end through one end of the guide rod inside the stepper motor and is sealed into the brewing chamber of the lower brewer assembly, and passes through the upper bracket fixedly arranged on the top of the upper brewer assembly through the stepper motor. The key points of its structural design are that the through-stepping motor is arranged at the bottom of the upper bracket, and a large bracket is arranged at the top of the upper bracket. The large bracket is provided with a hydraulic outer cavity and a hydraulic inner cavity that fit each other, and the pressure liquid outer cavity is inserted into the liquid cavity inner cavity. A sealing ring is provided on the outer diameter of the hydraulic inner cavity at the fitting point. The other end of the guide rod extending from the upper bracket and inserted into the large bracket is against the bottom of the hydraulic outer cavity. The outer diameter of the top cavity opening of the hydraulic inner cavity is limited in the large bracket. At the same time, the top cavity opening of the hydraulic inner cavity is connected with the hydraulic pipe, and the bottom of the hydraulic inner cavity is provided with a through hole communicating with the hydraulic inner cavity; or a hole is opened on one side of the bottom of the hydraulic outer cavity below the hydraulic inner cavity and connected with the pressure liquid pipe. The bottom of the hydraulic inner cavity is separated and sealed and fits with the hydraulic inner cavity. The hydraulic outer cavity is arranged in the large bracket and moves up and down through the hydraulic changes of the hydraulic inner cavity. Thus, the outer cavity of the liquid cavity moves up and down in the large bracket by injecting water into the inner cavity of the liquid cavity and then entering the outer cavity of the liquid cavity through the through hole, or the outer cavity of the liquid cavity moves up and down in the outer diameter of the hydraulic inner cavity and the large bracket by injecting water into the outer cavity of the liquid cavity. According to the above structural characteristics, a return spring can also be set at the outer diameter of the outer cavity of the hydraulic cavity at the opening of the outer edge, or a return spring can be set at a corresponding position. At the same time, a liquid inlet hole is provided on one side of the brewing cavity of the lower brewer assembly, and the coffee powder falling into the brewing cavity is scraped flat by a powder scraper plate on one side of the cavity opening at the top of the brewing cavity and rotated to one side of the upper brewer assembly. The coffee powder in the brewing cavity is brewed and compacted into a coffee ground cake by the brewer head assembly of the upper brewer assembly, and the coffee ground cake is discharged through the opened cavity opening at the top of the brewing cavity and the push rod at the bottom of the brewing cavity; the two output pipes in the brewer head assembly are convenient for making American coffee and Italian coffee.

[0005] The end surface of the brewer head assembly is provided with a filter core net, and the filter core net is fixed to the brewer head assembly through a screw in the middle of the bottom of the brewer head assembly. The above structure is convenient for improving the filtering effect.

[0006] The bottom of the upper bracket is symmetrically provided with T-shaped grooves on both sides, and the grooves correspond to the T-shaped guide rails symmetrically protruding on both sides of the top of the lower brewer assembly, and the grooves of the upper bracket are correspondingly fitted and fixed with the guide rails of the lower brewer assembly. The above structure facilitates the upper brewer assembly to be installed and fixed on the guide rails of the lower brewer assembly through the upper bracket.

[0007] The through hole of the upper bracket is provided with a large gear extending out of the upper brewer assembly, which passes through the stepping motor or is fixed to the center hole of the large gear in the upper bracket. The outer diameter side of the large gear is meshed with the small gear of the gear motor outside the upper bracket to drive the large gear passing through the stepping motor to move up and down. The above structure facilitates fine-tuning the position of the stepping motor passing through the upper brewer through the large gear and the gear motor. The groove and the large gear at the upper bracket of the upper brewer assembly are set as needed, and the upper brewer assembly can also be directly set in the machine body through the upper bracket.

[0008] The lower brewer assembly has a dregs discharge side provided with a check plate integrally formed with the lower brewer assembly housing, and the housing of the lower brewer assembly is composed of a left-right symmetrical arrangement. The above structure facilitates the discharge and collection of coffee dregs through the check plate.

[0009] The utility model has reasonable structural design, various structural forms and good stability, especially it is convenient for the stability of the motor and the guide rod, and is convenient for making American coffee and Italian coffee; it is suitable for use as a hydraulic chamber mechanism of a motor guide rod type coffee brewer, and is a further improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic cross-sectional structural diagram of the first embodiment of the utility model, in which a stepper motor is fixed to a large gear and an opening is provided at the hydraulic outer cavity.

[0011] Figure 2 yes Figure 1 The cross-sectional structure diagram of the second embodiment of the upper brewer assembly Figure 1 In the figure, the stepper motor is fixed on the upper bracket, and a through hole is provided between the hydraulic outer cavity and the hydraulic inner cavity.

[0012] Figure 3 yes Figure 2 The cross-sectional structure of Figure 2 .

[0013] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure.

[0014] Figure 5 yes Figure 4 Schematic diagram of the explosion structure.

[0015] Serial numbers and names of the accompanying drawings: 1. Lower brewer assembly, 101. Troubleshooting plate, 2. Upper brewer assembly, 201. Groove, 202. Large gear, 3. Brewer head assembly, 4. Upper bracket, 5. Through-stepping motor, 6. Guide rod, 7. Hydraulic outer chamber, 8. Hydraulic inner chamber, 9. Large bracket. Implementation

[0016] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figure 1-Figure 5As shown, the coffee brewer of the hydraulic chamber mechanism comprises a lower brewer assembly 1 and an upper brewer assembly 2. One side or both sides of the brewer head assembly 3 of the upper brewer assembly are respectively provided with output pipes with both ends extending out of the upper brewer assembly. The brewer head assembly is symmetrically provided with guide pillars, and the outer diameters of the guide pillars are respectively provided with guide pillar springs. When the brewing chamber of the lower brewer assembly rotates to one side to align with the brewer head assembly, one end of the brewer head assembly passes through the other end of the guide rod 6 in the stepper motor 5 and is sealed into the brewing chamber of the lower brewer assembly, and passes through the upper bracket fixedly arranged on the top of the upper brewer assembly through the stepper motor. The through-stepping motor is arranged at the bottom of the upper bracket, and a large bracket 9 is arranged at the top of the upper bracket. The large bracket is provided with a hydraulic outer chamber 7 and a hydraulic inner chamber 8 which fit each other. The pressure liquid outer chamber is inserted into the liquid chamber inner chamber, and a sealing ring is provided on the outer diameter of the hydraulic inner chamber at the fitting place. The other end of the guide rod extending from the upper bracket and inserted into the large bracket is against the bottom of the hydraulic outer chamber. The outer diameter of the top cavity opening of the hydraulic inner chamber is limited in the large bracket. At the same time, the top cavity opening of the hydraulic inner chamber is connected with the hydraulic pipe, and the bottom of the hydraulic inner chamber is provided with a through hole communicating with the hydraulic inner chamber; or a hole is opened on one side of the bottom of the hydraulic outer chamber below the hydraulic inner chamber and connected with the pressure liquid pipe. The bottom of the hydraulic inner chamber is separated and sealed and fits with the hydraulic inner chamber. The hydraulic outer chamber is arranged in the large bracket and moves up and down through the hydraulic change of the hydraulic inner chamber.

[0017] The end surface of the brewer head assembly is provided with a filter core net, which is fixed to the brewer head assembly by a screw in the middle of the bottom of the brewer head assembly. T-shaped grooves 201 are symmetrically provided on both sides of the bottom of the upper bracket, and the grooves correspond to the symmetrically raised T-shaped guide rails on both sides of the top of the lower brewer assembly. The grooves of the upper bracket are correspondingly fitted and fixed with the guide rails of the lower brewer assembly. A check plate 101 is provided on the slag discharge side of the lower brewer assembly, which is integrally formed with the shell of the lower brewer assembly. The shell of the lower brewer assembly is composed of a left-right symmetrical arrangement.

[0018] like Figure 1 As shown, a large gear 202 extending out of the upper brewer assembly is provided at the through hole of the upper bracket, passing through the stepper motor or fixed to the center hole of the large gear in the upper bracket, and the outer diameter side of the large gear is engaged with the small gear of the gear motor outside the upper bracket to drive the large gear passing through the stepper motor to move up and down.

[0019] When in use, the hydraulic inner cavity and the large bracket are fixed, and the stepper motor and the guide rod are first inserted and moved downward to pull the hydraulic outer cavity down to the program control position; then water is injected, and at this time, the hydraulic inner cavity and the brewer head assembly are injected with water at the same time to ensure that the upper and lower forces are consistent during the brewing process, thereby ensuring the stability of brewing. After brewing is completed, the external pressure relief valve is opened, and the stepper motor and the guide rod are reversed to discharge the water in the hydraulic inner cavity to complete a cycle. The above-mentioned hydraulic inner cavity is the hydraulic inner cavity at the connection between the hydraulic outer cavity and the hydraulic inner cavity in Example 1, or the hydraulic inner cavity in Example 2 formed by the hydraulic outer cavity and the hydraulic inner cavity being connected.

[0020] In summary, a hydraulic mechanism or hydraulic force is added to the top of the hydraulic chamber mechanism to control or offset the upward force penetrating the stepper motor and the guide rod, thereby preventing the stepper motor and the guide rod from moving upward during the brewing process.

Claims

1. A hydraulic chamber mechanism of a motor guide rod type coffee brewer, the coffee brewer of the hydraulic chamber mechanism comprising a lower brewer assembly (1) and an upper brewer assembly (2), one side or both sides of a brewer head assembly (3) of the upper brewer assembly are respectively provided with output pipes with both ends extending out of the upper brewer assembly, guide pillars are symmetrically arranged in the brewer head assembly, and the outer diameters of the guide pillars are respectively provided with guide pillar springs, when the brewing chamber of the lower brewer assembly rotates to one side to align with the brewer head assembly, one end of the brewer head assembly passes through the other end of a guide rod (6) inside a stepping motor (5) and is sealed into the brewing chamber of the lower brewer assembly, and passes through an upper bracket (4) fixedly arranged on the top of the upper brewer assembly through the stepping motor; characterized in that The through-stepping motor (5) is arranged at the bottom of the upper bracket (4), and a large bracket (9) is arranged at the top of the upper bracket. The large bracket is provided with a hydraulic outer chamber (7) and a hydraulic inner chamber (8) which are mutually sleeved. The pressure liquid outer chamber is sleeved into the liquid chamber inner chamber. A sealing ring is arranged at the outer diameter of the hydraulic inner chamber at the sleeved position. The other end of the guide rod (6) extending from the upper bracket and inserted into the large bracket is abutted against the bottom of the hydraulic outer chamber. The outer diameter of the top cavity opening of the hydraulic inner chamber is limited to the inside of the large bracket. The top cavity opening of the hydraulic inner chamber is connected to the hydraulic pipe. The bottom of the hydraulic inner chamber is provided with a through hole communicating with the hydraulic inner chamber; or a hole is opened on one side of the bottom of the hydraulic outer chamber below the hydraulic inner chamber and connected to the pressure liquid pipe. The bottom of the hydraulic inner chamber is separated and sealed and sleeved with the hydraulic inner chamber. The hydraulic outer chamber is arranged in the large bracket and moves up and down according to the hydraulic pressure change of the hydraulic inner chamber.

2. The hydraulic chamber mechanism of the motor-guided coffee brewer according to claim 1, characterized in that The end surface of the brewer head assembly (3) is provided with a filter core mesh, and the filter core mesh is fixed to the brewer head assembly via a screw in the middle of the bottom of the brewer head assembly.

3. The hydraulic chamber mechanism of the motor-guided coffee brewer according to claim 1, characterized in that The bottom of the upper bracket (4) is symmetrically provided with T-shaped grooves (201), the grooves corresponding to the symmetrically raised T-shaped guide rails on the top of the lower brewer assembly (1), and the grooves of the upper bracket are correspondingly fitted and fixed to the guide rails of the lower brewer assembly.

4. The hydraulic chamber mechanism of the motor-guided coffee brewer according to claim 1, characterized in that A large gear (202) extending from the upper brewer assembly (2) is provided at the through hole of the upper bracket (4), passing through the stepper motor (5) or fixed to the center hole of the large gear in the upper bracket, and the outer diameter side of the large gear meshes with the small gear of the gear motor outside the upper bracket to drive the large gear passing through the stepper motor to move up and down.

5. The hydraulic chamber mechanism of the motor-guided coffee brewer according to claim 1, characterized in that The lower brewer assembly (1) is provided with an inspection plate (101) formed integrally with the shell of the lower brewer assembly on the slag discharge side, and the shell of the lower brewer assembly is composed of a left-right symmetrical arrangement.

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