Coffee brewing device

Abstract

The utility model discloses a coffee brewing device which comprises a lower support, a coffee bag assembly, an upper support, a brewing head and a handle and further comprises a locking piece, the top end of the locking piece is connected with the lower support in a rotating mode, a locking portion is arranged at the bottom end of the locking piece, and the locking portion is a hook which is formed on the locking piece and provided with a forward opening. Wherein the locking piece is connected with the handle, the locking piece can swing back and forth along a rotating axis extending in the left-right direction under the driving of the handle, the rotating axis of the locking piece is parallel to the rotating axis of the handle, and the rotating axis of the locking piece is located in front of or behind the rotating axis of the handle; when the front end of the handle is in a lower hem state, the hook moves towards the direction of the first stop part until the hook and the first stop part are in a locked state; when the front end of the handle is in the upward swinging state, the hook moves in the direction away from the first stopping part to the locking state that the hook is separated from the first stopping part, and the risk that the brewing head bounces off is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a coffee brewing device. Background Art

[0002] Today's coffee machines are an indispensable appliance in the workplace and at home.

[0003] Coffee machines usually have a brewing device. For example, the double hooks disclosed in the Chinese utility model patent "A Brewing Device for an Open-Lid Capsule Coffee Machine" previously applied for by the applicant, with patent number Z L202221721237.5 (authorization publication number CN217937910U) are directed backward. During the high-pressure brewing process, there is a risk that the hooks will pop out, causing hot water to spray out and accidentally injure consumers. Moreover, when pressing down on the brewing head, the double hooks are simultaneously subjected to force, increasing the resistance and making it more laborious. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a coffee brewing device. When the handle is swung down to the closed state, since the opening direction of the hook is in the forward position, the brewing head is free to open by rotating the upper bracket to the left front relative to the lower bracket. During the brewing process, no matter how much upward force the capsule exerts, the hook will only become tighter and tighter, avoiding the risk of the brewing head bouncing off.

[0006] (2) Technical solution

[0007] The solution adopted by the utility model to solve the above technical problems is a coffee brewing device, comprising:

[0008] A lower bracket is provided with an opening along the axial direction and a first stop portion is provided on the lower bracket;

[0009] A coffee bag assembly, which can be taken out of or put into the lower bracket along the axial direction of the opening of the lower bracket;

[0010] an upper bracket, which is arranged above the lower bracket, and one end of the upper bracket located at the rear side is rotatably connected to the lower bracket;

[0011] A brewing head, which is arranged at one end of the upper bracket close to the lower bracket;

[0012] a handle, one end of which is located at the rear side and is rotatably connected to the upper bracket so that the front end of the handle can swing up and down relative to the upper bracket;

[0013] The locking member is connected to the handle and can be swung back and forth along the rotation axis extending in the left and right directions under the drive of the handle, and the rotation axis of the locking member is parallel to the rotation axis of the handle, and the rotation axis of the locking member is located in front of or behind the rotation axis of the handle; and, when the front end of the handle is in a downward swing state, the hook moves toward the first stop portion until it is in a locked state with the first stop portion; when the front end of the handle is in an upward swing state, the hook moves in a direction away from the first stop portion until it is out of the locked state of the first stop portion.

[0014] In some embodiments, the upper bracket is further provided with a second stop portion for limiting the upward swing amplitude of the handle; and the handle is provided with a limiting portion capable of cooperating with the second stop portion.

[0015] Specifically, the rear side of the upper bracket is rotatably connected to the lower bracket via a rotating shaft; and, after the front end of the handle swings upward and the hook disengages from the first stop portion, the limit portion of the handle abuts against the second stop portion to limit the front end of the handle from continuing to swing upward; applying force to the handle can drive the upper bracket to rotate and open relative to the lower bracket; and when the handle is rotated and the upper bracket is driven to close on the lower bracket, applying force to the handle can drive the locking piece to swing forward until its hook is locked on the first stop portion.

[0016] With the above solution, when the handle is swung down to the closed state, since the opening direction of the hook is in the forward position, the brewing head is free to open by rotating the upper bracket to the left front relative to the lower bracket. During the brewing process, no matter how much upward force the capsule exerts, the hook will only become tighter and tighter, avoiding the risk of the brewing head bouncing off.

[0017] In some embodiments, a linkage mechanism for linking the handle and the locking member is provided between the handle and the locking member; the linkage mechanism includes a first link, a second link, a third link and a fourth link; wherein, one end of the first link is hinged to the handle; the second link and the third link are respectively arranged at the front end and the rear end of the first link; the end of the first link away from the handle is hinged to the second link and one end of the third link, the other end of the third link is hinged to the upper bracket, the other end of the second link is hinged to the fourth link, and the other end of the fourth link is fixed relative to the locking member; and, when the handle is swung down to drive the hook to lock on the first stop portion, an angle α is formed between the second link and the horizontal plane in the front-to-back direction, and the angle α = 3°±0.5°.

[0018] In some embodiments, the hinged portions of the fourth link and the second link are arranged opposite to each other at a middle portion of the locking member.

[0019] In some embodiments, the handle includes a rotating arm arranged on the side of its rotating axis close to the first connecting rod, and an operating part is provided at the top of the rotating arm; and the rotating arm is respectively connected to a group of connecting rod mechanisms at the left and right ends, each group of connecting rod mechanisms is respectively connected to a locking member, and the two locking members can move synchronously under the drive of the handle.

[0020] In some embodiments, the two locking members are connected together via a connecting member, and the fourth connecting rod is formed on the connecting member.

[0021] Specifically, after the front end of the handle is swung upward, it will drive the rotating arm of the handle and the hinge of the first link to move upward and forward relative to each other. Since the other end of the third link is hinged to the upper bracket, it will drive the hinges of the first link, the second link and the third link to move upward and backward relative to each other. The hinge of the second link and the fourth link will be driven to move backward and upward relative to each other, and then the hook of the locking member can be driven backward and upward to disengage from the first stop portion.

[0022] With the above solution, it is designed that when the handle is swung down to drive the hook to lock on the first stop portion, an angle α is formed between the second connecting rod and the horizontal plane in the front-to-back direction. Then, the force for opening the hook backward needs to overcome the gravity of the brewing head before the connecting rod mechanism can be opened, which is safer. At the same time, the four-link mechanism is adopted, which is more convenient to operate, saves labor, has good operational stability and higher safety.

[0023] In some embodiments, the present invention further comprises a movable member disposed on the upper bracket, wherein the movable member is disposed near the third connecting rod; and the movable member is capable of moving relative to the upper bracket in a left-right direction toward or away from the third connecting rod, so that the movable member has the following two states:

[0024] In the first state, the movable member is located below the third connecting rod and is able to abut against the third connecting rod, so that the handle is always in an upward-swinging locked state;

[0025] In the second state, the movable member is located on the side of the third connecting rod to release the locking state of the handle.

[0026] In some embodiments, an elastic member is further included, which acts on the movable member and makes the movable member tend to always move in the direction close to the third connecting rod; a linkage member is also included, which cooperates with the movable member to enable the movable member to move from the first state to the second state; and a driving member is provided on the lower bracket, which can drive the linkage member so that the linkage member drives the movable member to move from the first state to the second state.

[0027] In some embodiments, the bottom surface of the movable part has a first inclined surface that gradually tilts from bottom to top toward the direction of the first connecting rod, and the linkage part has a second inclined surface matching the first inclined surface. The driving part is a top structure extending from the lower bracket toward the upper bracket. The linkage part corresponds to the driving part, and moves downward on the front side of the upper bracket to a state closed on the lower bracket. The driving part pushes the linkage part toward the upper bracket to make the movable part move to the second state; in this way, during the downward movement of the upper bracket, the driving part on the lower bracket continuously pushes the linkage part, and the unlocking of the movable part is achieved through the cooperation of the first inclined surface and the second inclined surface.

[0028] Specifically, when the hook of the locking member is locked on the first stop portion, the movable member is in a telescopic state and is located on the side of the third connecting rod; the operating handle can drive the connecting rod mechanism to move until the hook is disengaged from the first stop portion and unlocked. In this process, the third connecting rod moves upward and makes the third connecting rod avoid the movable member; after the limit portion of the handle is against the second stop portion, force is applied to the handle to drive the upper bracket to swing upward; the linkage member is separated from the driving member, and under the action of the elastic member, the movable member extends outward and moves to the first state, passing through the first inclined surface and the second inclined surface The linkage moves downward. At this time, since the third link is placed above the movable part, the movement of the third link is restricted, and the handle is locked in the upper swing state; force is applied to the handle to drive the upper bracket to swing downward, until the upper bracket is closed on the lower bracket, and the driving member on the lower bracket pushes the linkage to move upward, and the movable part is telescopically moved inward to the second state through the first inclined surface and the second inclined surface; force is applied to the handle to make it swing downward, and the third link can avoid the interference of the movable part; and the hook of the locking member can be driven to be locked on the first stop portion.

[0029] In some embodiments, the lower bracket is provided with a slot for preventing the forward and backward swinging movement of the locking member; the first stop portion is a limiting shaft arranged in the groove and along the left and right directions; the limiting shaft is located in front of the rotation axis of the locking member.

[0030] In some embodiments, the upper bracket or the brewing head is provided with a limiting portion arranged along the front-to-back direction, and the locking member includes a limiting matching portion that matches the limiting portion.

[0031] Specifically, the limiting portion is a slide groove formed at the left and right ends of the brewing head, and the limiting matching portion is a slider that matches the slide groove; when the handle is swung up and down, the hook can be accurately locked on the first stop portion.

[0032] In some embodiments, springs are provided on the four corners where the brewing head is connected to the upper bracket, which can decompose the sealing pressure of the silicone parts of the brewing head to avoid the brewing head from getting stuck or pausing.

[0033] (3) Beneficial effects

[0034] Compared with the prior art, the utility model designs a coffee brewing device.

[0035] (1) When the handle of the present invention is swung down to the closed state, the opening direction of the hook is in the forward position, and the brewing head is free to open by rotating the upper bracket to the left front relative to the lower bracket. During the brewing process, no matter how much upward force the capsule exerts, the hook will only become tighter and tighter, avoiding the risk of the brewing head popping open;

[0036] (2) In the present invention, when the handle is swung downward to drive the hook to lock on the first stop portion, an angle α of 3° is formed between the second connecting rod and the horizontal plane in the front-to-back direction. Therefore, the force for the hook to open backward needs to overcome the gravity of the brewing head before the connecting rod mechanism can be opened, which is safer. At the same time, the four-link mechanism is adopted, which is more convenient to operate, saves labor, has good operational stability, and is safer.

[0037] (3) The present invention achieves locking and unlocking of the handle by the left and right movement of the movable part. When the handle is locked, the movable part presses against the third connecting rod so that the handle is always in the upward swing state, and force can be applied to the handle to drive the upper bracket to rotate relative to the lower bracket; and when the upper bracket is closed on the lower bracket, the movable part can be driven inward without interfering with the third connecting rod, and the handle is unlocked. By pressing the front end of the handle downward, the hook is locked with the first stop portion. The whole process is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 This is a structural schematic diagram of a coffee brewing device according to the present invention, with the front end of the handle in a downwardly swung state;

[0040] Figure 2 This is a schematic structural diagram from another angle of a coffee brewing device according to the present invention, with the front end of the handle in a downward swinging state;

[0041] Figure 3 This is a cross-sectional view of a coffee brewing device according to the present invention with the front end of the handle in a downwardly swung state;

[0042] Figure 4 This is a schematic diagram of the coordination of the handle, connecting rod mechanism, brewing head, and first stop portion of the present invention (the front end of the handle is in the downward swing state);

[0043] Figure 5 This is a structural schematic diagram of a coffee brewing device according to the present invention, with the front end of the handle in an upward swing state;

[0044] Figure 6 This is a cross-sectional view of a coffee brewing device according to the present invention, with the front end of the handle in an upward swing state;

[0045] Figure 7 This is a schematic diagram of the coordination of the handle, connecting rod mechanism, brewing head, and first stop portion of the present invention (the front end of the handle is in the upward swing state);

[0046] Figure 8 This is a structural cross-sectional view of a coffee brewing device according to the present invention, with the front end of the handle in an upward swing state;

[0047] Figure 9 for Figure 8 Enlarged schematic diagram of point A in the middle.

[0048] 1 , a first stop portion; a second stop portion; a third stop portion; a fourth stop portion; a fourth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion; a fifth stop portion DETAILED DESCRIPTION

[0049] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0050] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0052] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0053] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0054] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0055] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0056] like Figures 1-9As shown, the present invention provides a coffee brewing device, comprising: a lower bracket 100, which is provided with an opening along the axial direction, and a first stop portion 101 is provided on the lower bracket 100; a coffee bag assembly 200, which can be taken out or put into the lower bracket 100 along the axial direction of the opening of the lower bracket 100; an upper bracket 300, which is provided above the lower bracket 100, and the upper bracket 300 is rotatably connected to the lower bracket 100 at one end located at the rear side; a brewing head 400, which is provided at one end of the upper bracket 300 close to the lower bracket 100; a handle 500, which is rotatably connected to the upper bracket 300 at one end located at the rear side, so that the front end of the handle 500 swings up and down relative to the upper bracket 300; and a locking member 600, the top end of the locking member 600 is rotatably connected to the lower bracket 100, and the bottom end of the locking member 600 is rotatably connected to the lower bracket 100. A locking portion is provided, which is a hook 601 formed on the locking member 600 and with an opening facing forward; wherein, the locking member 600 is connected to the handle 500, and the locking member 600 can swing back and forth along the rotation axis extending in the left and right directions under the drive of the handle 500, and the rotation axis of the locking member 600 is parallel to the rotation axis of the handle 500, and the rotation axis of the locking member 600 is located in front of the rotation axis of the handle 500; and, when the front end of the handle 500 is in a downward swing state, the hook 601 moves toward the first stop portion 101 until it is in a locked state with the first stop portion 101; when the front end of the handle 500 is in an upward swing state, the hook 601 moves in a direction away from the first stop portion 101 until it is out of the locked state of the first stop portion 101. In some embodiments, the upper bracket 300 is further provided with a second stop portion 301 for limiting the upward swing range of the handle 500; the handle 500 is provided with a limit portion 503 capable of cooperating with the second stop portion 301. Specifically, the rear side of the upper bracket 300 is rotatably connected to the lower bracket 100 via a rotating shaft 302; and after the front end of the handle 500 swings upward and the hook 601 disengages from the first stop portion 101, until the limit portion 503 of the handle 500 abuts against the second stop portion 301 to limit the front end of the handle 500 from further swinging upward, applying force to the handle 500 can drive the upper bracket 300 to rotate open relative to the lower bracket 100; and when the handle 500 is rotated and the upper bracket 300 is closed on the lower bracket 100, applying force to the handle 500 can drive the locking member 600 to swing forward until its hook 601 locks on the first stop portion 101.With the above solution, when the handle 500 is swung down to the closed state, since the opening direction of the hook 601 is in the forward position, the brewing head 400 is free to rotate to the left front relative to the lower bracket 100. During the brewing process, no matter how much upward force the capsule exerts, the hook 601 will only become tighter and tighter, avoiding the risk of the brewing head 400 bouncing off.

[0057] In some embodiments, a link mechanism 700 is provided between the handle 500 and the locking member 600 for linking the handle 500 and the locking member 600; the link mechanism 700 includes a first link 701, a second link 702, a third link 703 and a fourth link 704; wherein, one end of the first link 701 is hinged to the handle 500; the second link 702 and the third link 703 are respectively provided at the front end and the rear end of the first link 701; the first link 701 is remote from the locking member 600; One end of the handle 500 is hingedly connected to one end of the second link 702 and the third link 703. The other end of the third link 703 is hingedly connected to the upper bracket 300. The other end of the second link 702 is hingedly connected to the fourth link 704. The other end of the fourth link 704 is fixed relative to the locking member 600. Furthermore, when the handle 500 swings downward, driving the hook 601 to lock on the first stop 101, an angle α is formed between the second link 702 and a horizontal plane in the front-to-back direction. The angle α is 3. In some embodiments, the hinged portions of the fourth link 704 and the second link 702 are arranged relative to each other in the middle portion of the locking member 600. In some embodiments, the handle 500 includes a rotating arm 501 located on one side of its rotation axis near the first connecting rod 701. An operating portion 502 is provided at the top of the rotating arm 501. Furthermore, a pair of connecting rod mechanisms 700 are connected to the left and right ends of the rotating arm 501, each of which is connected to a locking member 600. The two locking members 600 can move synchronously under the influence of the handle 500. In some embodiments, the two locking members 600 are connected together by a connecting member 602, and the fourth connecting rod 704 is formed on the connecting member 602. Specifically, after the front end of the handle 500 is swung upward, the hinge between the rotating arm 501 of the handle 500 and the first link 701 will be driven to move upward and forward relative to each other. Since the other end of the third link 703 is hinged to the upper bracket 300, the hinge between the first link 701, the second link 702 and the third link 703 will be driven to move upward and backward relative to each other. The hinge between the second link 702 and the fourth link 704 will be driven to move backward and upward relative to each other, and then the hook 601 of the locking member 600 can be driven to move backward and upward to disengage from the first stop portion 101. With the above solution, when the handle 500 is swung down to drive the hook 601 to lock on the first stop portion 101, an angle α is formed between the second connecting rod 702 and the horizontal plane in the front-to-back direction. Then, the force for opening the hook 601 backward needs to overcome the gravity of the brewing head 400 before the connecting rod mechanism 700 can be opened, which is safer. At the same time, the four-link mechanism 700 is adopted, which is more convenient to operate, saves labor, has good operational stability, and is safer.

[0058] In some embodiments, it also includes a movable part 800 provided on the upper bracket 300, and the movable part 800 is arranged close to the third connecting rod 703; and the movable part 800 can move relative to the upper bracket 300 along the left and right directions toward or away from the third connecting rod 703, so that the movable part 800 has the following two states; in the first state, the movable part 800 is located below the third connecting rod 703 and can abut against the third connecting rod 703, so that the handle 500 is always in an upward swing locked state; in the second state, the movable part 800 is located on the side of the third connecting rod 703 to release the locked state of the handle 500. In some embodiments, an elastic member 801 is also included, which acts on the movable member 800 and makes the movable member 800 tend to always move in the direction close to the third connecting rod 703; a linkage member 802 is also included, which cooperates with the movable member 800 to enable the movable member 800 to move from the first state to the second state; and a driving member 102 is provided on the lower bracket 100, which can drive the linkage member 802 so that the linkage member 802 drives the movable member 800 to move from the first state to the second state. In some embodiments, the bottom surface of the movable part 800 has a first inclined surface 800a that gradually tilts from bottom to top toward the first connecting rod 701, and the linkage part 802 has a second inclined surface 802a that matches the first inclined surface 800a. The driving part 102 is a top structure extending from the lower bracket 100 toward the upper bracket 300. The linkage part 802 corresponds to the driving part 102. When the front side of the upper bracket 300 moves downward to a state closed on the lower bracket 100, the driving part 102 pushes the linkage part 802 toward the upper bracket 300, so that the movable part 800 moves to the second state; in this way, during the downward movement of the upper bracket 300, the driving part 102 on the lower bracket 100 continuously pushes the linkage part 802, and the unlocking of the movable part 800 is achieved through the cooperation of the first inclined surface 800a and the second inclined surface 802a.Specifically, when the hook 601 of the locking member 600 is locked on the first stop portion 101, the movable member 800 is in a telescopic state and is located on the side of the third connecting rod 703; then, by operating the handle 500, the connecting rod mechanism 700 can be driven to move until the hook 601 is disengaged from the first stop portion 101 and is unlocked. During this process, the third connecting rod 703 moves upward and makes the third connecting rod 703 avoid the movable member 800; after the limiting portion 503 of the handle 500 is against the second stop portion 301, force is applied to the handle 500 to drive the upper bracket 300 to swing upward; then the linkage member 802 is separated from the driving member 102, and under the action of the elastic member 801, the movable member 800 extends outward and moves to the first state, passing through the first inclined surface 800a and the second inclined surface 800b. 02a, the linkage member 802 moves downward. At this time, since the third connecting rod 703 is placed above the movable member 800, the movement of the third connecting rod 703 is restricted, and the handle 500 is locked in the upward swing state; force is applied to the handle 500 to drive the upper bracket 300 to swing downward, until the upper bracket 300 is closed on the lower bracket 100, the driving member 102 on the lower bracket 100 pushes the linkage member 802 to move upward, and through the first inclined surface 800a and the second inclined surface 802a, the movable member 800 is telescoped inward to the second state; force is applied to the handle 500 to make it swing downward, and the third connecting rod 703 can avoid the interference of the movable member 800; it can drive the hook 601 of the locking member 600 to be locked on the first stop portion 101.

[0059] In some embodiments, the lower bracket 100 is provided with two left and right slots for preventing the forward and backward swinging movement of the locking member 600; the first stop portion 101 is a limiting axis arranged along the left and right directions and arranged inside the slot; the limiting axis is located in front of the rotation axis of the locking member 600.

[0060] In some embodiments, the brew head 400 is provided with a limiting portion 503 arranged along the front-to-back direction, and the locking member 600 includes a limiting mating portion 603 that cooperates with the limiting portion 503. Specifically, the limiting portion 503 is a sliding groove formed at the left and right ends of the brew head 400, and the limiting mating portion 603 is a slider that cooperates with the sliding groove; thus, when the handle 500 is swung up or down, the hook 601 can be accurately locked on the first stop portion 101.

[0061] In some embodiments, springs 402 are provided at the four corners where the brewing head 400 and the upper bracket 300 are connected, which can decompose the sealing pressure of the silicone parts of the brewing head 400 to prevent the brewing head 400 from getting stuck or pausing.

[0062] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0063] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A coffee brewing device comprising: A lower bracket (100) is provided with an opening along the axial direction, and a first stop portion (101) is provided on the lower bracket (100); A coffee bag assembly (200) capable of being taken out of or placed into the lower bracket (100) along the axial direction of the opening of the lower bracket (100); an upper bracket (300) disposed above the lower bracket (100), and one end of the upper bracket (300) located at the rear side is rotatably connected to the lower bracket (100); a brewing head (400), which is arranged on one end of the upper bracket (300) close to the lower bracket (100); A handle (500), one end of which is located at the rear side and is rotatably connected to the upper bracket (300), so that the front end of the handle (500) can swing up and down relative to the upper bracket (300); Its characteristics are: The invention also includes a locking member (600), the top end of which is rotatably connected to the lower bracket (100), and the bottom end of which is provided with a locking portion, wherein the locking portion is a hook (601) formed on the locking member (600) and opening toward the front; wherein the locking member (600) is connected to the handle (500), and the locking member (600) can swing forward and backward along a rotation axis extending in the left and right directions under the drive of the handle (500), and the rotation axis of the locking member (600) is aligned with the handle (500). 00) are parallel to each other, and the rotation axis of the locking member (600) is located in front of or behind the rotation axis of the handle (500); and, when the front end of the handle (500) is in a downward swing state, the hook (601) moves toward the first stop portion (101) until it is in a locked state with the first stop portion (101); when the front end of the handle (500) is in an upward swing state, the hook (601) moves in a direction away from the first stop portion (101) until it is out of the locked state of the first stop portion (101).

2. The coffee brewing device according to claim 1, characterized in that: A connecting rod mechanism (700) for linking the handle (500) and the locking member (600) is provided between the handle (500) and the locking member (600); the connecting rod mechanism (700) comprises a first connecting rod (701), a second connecting rod (702), a third connecting rod (703) and a fourth connecting rod (704); wherein one end of the first connecting rod (701) is hinged to the handle (500); the second connecting rod (702) and the third connecting rod (703) are respectively provided at the front end and the rear end of the first connecting rod (701); the first connecting rod (701) is away from the handle ( One end of the handle (500) is hinged to one end of the second link (702) and the third link (703), the other end of the third link (703) is hinged to the upper bracket (300), the other end of the second link (702) is hinged to the fourth link (704), and the other end of the fourth link (704) is fixedly arranged relative to the locking member (600); and when the handle (500) is swung down to drive the hook (601) to lock on the first stop portion (101), an angle α is formed between the second link (702) and the horizontal plane in the front-to-back direction, and the angle α=3°±0.5°.

3. The coffee brewing device according to claim 2, characterized in that: The hinged portions of the fourth link (704) and the second link (702) are arranged relative to each other at the middle portion of the locking member (600).

4. The coffee brewing device according to claim 2, characterized in that: The handle (500) includes a rotating arm (501) arranged on one side of its rotating axis close to the first connecting rod (701), and an operating part (502) is provided at the top of the rotating arm (501); and the rotating arm (501) is connected to a group of connecting rod mechanisms (700) at the left and right ends respectively, and each group of connecting rod mechanisms (700) is connected to a locking member (600), and the two locking members (600) can move synchronously under the drive of the handle (500).

5. The coffee brewing device according to claim 4, characterized in that: The two locking members (600) are connected together via a connecting member (602), and the fourth connecting rod (704) is formed on the connecting member (602).

6. The coffee brewing device according to claim 2, characterized in that: The device further comprises a movable member (800) provided on the upper bracket (300), wherein the movable member (800) is arranged close to the third connecting rod (703); and the movable member (800) can move relative to the upper bracket (300) along the left-right direction toward or away from the third connecting rod (703), so that the movable member (800) has the following two states: In the first state, the movable member (800) is located below the third connecting rod (703) and is able to abut against the third connecting rod (703), so that the handle (500) is always in an upward-swinging locked state; In the second state, the movable member (800) is located on the side of the third connecting rod (703) to release the locking state of the handle (500).

7. The coffee brewing device according to claim 6, characterized in that: The invention also includes an elastic member (801), which acts on the movable member (800) and makes the movable member (800) have a tendency to always move in a direction close to the third connecting rod (703); and also includes a linkage member (802), which cooperates with the movable member (800) to enable the movable member (800) to move from a first state to a second state; and the lower bracket (100) is provided with a driving member (102) capable of driving the linkage member (802) so that the linkage member (802) drives the movable member (800) to move from the first state to the second state.

8. The coffee brewing device according to claim 1, wherein: The upper bracket (300) is also provided with a second stop portion (301) for limiting the upward swing amplitude of the handle (500).

9. The coffee brewing device according to claim 1, characterized in that: The lower bracket (100) is provided with a slot for avoiding the forward and backward swinging movement of the locking member (600); the first stop portion (101) is a limiting shaft arranged in the inscribed slot along the left and right directions; the limiting shaft is located in front of the rotation axis of the locking member (600).

10. The coffee brewing device according to claim 1, wherein: The upper bracket (300) or the brewing head (400) is provided with a limiting portion (503) arranged along the front-back direction, and the locking member (600) includes a limiting matching portion (603) matching with the limiting portion (503).

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