CN116268950A - Beverage extraction device - Google Patents

Abstract

The utility model relates to a beverage extraction device, which comprises a first machine part, wherein the side part of the first machine part is provided with a clamping hook, and the upper part of the clamping hook is provided with a hook part extending along the front-back direction; the second machine part can be hinged to the rear end of the first machine part in a vertical rotating way so as to be opened or closed relative to the first machine part, a strip-shaped hole extending forwards and backwards is formed in the side wall of the front part of the second machine part, and a locking shaft capable of moving forwards and backwards and being hooked by the hook part is arranged in the strip-shaped hole in a penetrating way; the driving mechanism is used for driving the second machine part to rotate up and down and the locking shaft to move back and forth; the limiting structure is used for limiting the forward movement of the locking shaft and releasing the forward movement limitation of the locking shaft when the second machine part drives the locking shaft to rotate to the middle position between the fully opened position and the closed position, so that the beverage extraction device can reduce the processing precision requirement and cost, has higher assembly precision and can reduce the power output of the driving mechanism.

Description

Beverage extraction device

Technical Field

The utility model relates to the technical field of beverage extraction, in particular to a beverage extraction device for preparing beverages such as coffee, tea and the like.

Background

As the living standard of people is continuously improved, various beverage preparing apparatuses are sequentially appeared. When in use, the capsule which is packed with coffee powder, tea powder or milk powder and the like and is similar to a jelly bag is placed in the extraction device, two parts in the extraction device are folded to form a closed brewing chamber through a driving mechanism, and hot water is injected into the capsule for extraction. After extraction is completed, the used capsules need to be removed.

Through investigation, a Chinese patent with the patent number ZL201020113007.1 (bulletin number CN 201617680U) discloses a hydraulic driving type driving structure, which comprises an inner fixing seat fixed on the back wall of a base, a rear water inlet channel axially penetrating through the inner fixing seat, a rear cavity with a rear end opening in a second machine element, a rear cavity of the second machine element movably sleeved on the inner fixing seat and capable of sliding back and forth relative to the inner fixing seat, and a liquid sealing fit is arranged between the outer peripheral surface of the inner fixing seat and the inner peripheral wall of the rear cavity of the second machine element, and a liquid outlet channel communicated with the outside and a concave cavity on the second machine element is also arranged on the second machine element; the guide hole of the installation part is internally provided with an inner shoulder blade, each guide post is also sleeved with a return spring, one end of the return spring is propped against the front wall of the machine base, the other end of the return spring is propped against the inner shoulder blade in the guide hole, and the first machine part is provided with a front water inlet channel which is communicated with the brewing space and the outside. The hydraulic driving type driving structure locks the two parts through water pressure, and the production cost of the beverage extraction device is higher because the hydraulic piston structure is matched with pressure relief waterways such as an electromagnetic valve and the like.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a beverage extraction device capable of reducing the production cost.

A second object of the present utility model is to provide a beverage extraction device that has improved assembly accuracy and can reduce the power output of the drive mechanism.

The technical scheme adopted for solving the technical problems is as follows: a beverage extraction device is characterized by comprising

The first machine part is provided with a clamping hook at the side part, and the upper part of the clamping hook is provided with a hook part extending along the front-back direction;

the second machine part can be hinged to the rear end of the first machine part in a vertical rotating way, a strip-shaped hole extending forwards and backwards is formed in the side wall of the front part of the second machine part, and a locking shaft capable of moving forwards and backwards and being hooked by the hook part is arranged in the strip-shaped hole in a penetrating way;

the driving mechanism is used for driving the second machine part to rotate up and down and the locking shaft to move back and forth;

a limit structure for limiting forward movement of the lock shaft;

the second member has a fully open position, an intermediate position, and a closed position during rotation:

when the second machine member is in the fully opened position, the cooperating engagement of the drive mechanism and the limit structure positions the locking shaft at the rear end of the bar-shaped hole and away from the hook portion,

when the second machine member rotates to the intermediate position, the limiting structure can act to release the forward movement limitation of the locking shaft, so that the driving mechanism can drive the locking shaft to move forward in the strip-shaped hole to enter the hook part,

when the second machine member is located at the folding position, the driving mechanism positions the locking shaft at the front end in the strip-shaped hole and is hooked by the hook part so as to limit the locking shaft to be away from the first machine member in the axial direction, and therefore the relative folding state of the first machine member and the second machine member is locked.

The up-down direction refers to the height direction of the second machine member, and the front-back direction refers to the length direction of the second machine member.

In order to further shorten the forward travel of the locking shaft after unlocking, the angle between the second machine part and the first machine part in the middle position is smaller than or equal to 20 degrees.

Further designed, the bottom wall of the second machine part is provided with a perforation, and the limit structure comprises

The limiting block is arranged in front of the locking shaft in a vertically movable mode and comprises a main body part and a rod part extending downwards from the lower edge of the main body part, the rod part penetrates through the through hole, the rear end of the main body part abuts against the locking shaft when the rod part is separated from the first machine part, and the limiting block can move upwards to enable the rear end of the main body part to be misplaced with the locking shaft when the lower end of the rod part contacts with the first machine part, so that the forward movement limitation of the locking shaft is relieved;

the elastic piece enables the limiting block to always have a downward moving trend to be close to the first machine part. The contact of the first machine part and the limiting block triggers the limiting block to move upwards so as to limit the forward movement of the locking shaft, and a structure for driving the limiting block to move is not required to be additionally arranged, so that the beverage extraction device is simpler in structure, and the limiting block can accurately respond to the relative positions of the first machine part and the second machine part, so that the assembly precision of the beverage extraction device is higher.

In order to facilitate the installation of the limiting block and the elastic piece, the limiting structure further comprises a mounting plate fixed above the second machine part, a first accommodating space is formed between the lower surface of the mounting plate and the bottom wall of the second machine part, the main body part is accommodated in the first accommodating space, and a second accommodating space for accommodating the locking shaft is formed between the lower surface of the main body part and the bottom wall of the second machine part; the top of main part is opened there is the slot, the bottom of mounting panel is equipped with inserts and locates peg graft the post in the slot, the elastic component is the cover and locates the spring on the peg graft the post. When the limiting block moves upwards, a second accommodating space can be formed between the limiting block and the second machine part, at the moment, the locking shaft can move forwards to be accommodated in the second accommodating space and positioned at the front end in the strip-shaped hole, and meanwhile, the locking shaft is hooked by the hook part.

In order to facilitate the dislocation of the locking shaft and the limiting block after contacting the rear surface of the hook part, a first inclined surface which gradually inclines forwards from top to bottom is arranged at the lower side of the rear part of the main body part, and/or a second inclined surface which gradually inclines forwards from top to bottom is arranged at the lower side of the rear surface of the hook part. The first ramp and/or the second ramp can guide the lock shaft to move forward.

In order to make the driving mechanism simpler, the driving mechanism comprises a handle hinged on the second machine part in a vertical rotating way and a transmission structure arranged between the handle and the locking shaft, wherein the transmission structure is used for converting the vertical rotation of the handle into the front-back movement of the locking shaft.

Further, the transmission structure comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged to the lower side of the handle through a first transmission shaft which is horizontally arranged, the other end of the first connecting rod, one end of the second connecting rod and one end of the third connecting rod are hinged through a second transmission shaft which is horizontally arranged, the other end of the second connecting rod is hinged to the rear portion of the second machine part through a third transmission shaft which is horizontally arranged, and the other end of the third connecting rod is rotatably connected with the locking shaft.

In order to make the locking shaft not easy to separate from the hook part, when the second machine part is positioned at the folding position, the connecting line of the locking shaft and the third transmission shaft is positioned above the second transmission shaft. When the second machine part is positioned at the folding position, the locking shaft is hooked by the hook part, the second connecting rod exerts upward acting force on the locking shaft, and the hook part can limit the upward movement of the locking shaft, so that the locking shaft can be stably positioned in the hook part and is not easy to separate from the hook part; if the connecting line of the locking shaft and the third transmission shaft is arranged below the second transmission shaft, the effect that the locking shaft is not easy to separate from the hook part can be achieved by prolonging the length of the hook part in the front-back direction, however, too long length of the hook part in the front-back direction can cause too long advancing travel of the locking shaft, so that a driving mechanism is required to output larger power, the accuracy of the locking shaft entering the hook part can be influenced, and the requirement on the assembly precision of the beverage extraction device is higher.

In order to make the locking effect of the two sides of the second machine member firmer and more balanced, two sides of the second machine member are respectively provided with a strip-shaped hole, two sides of the first machine member are respectively provided with a clamping hook, and two ends of the locking shaft respectively penetrate through the strip-shaped holes of the corresponding sides and can be matched and connected with the hook parts of the corresponding sides; the transmission structures are provided with two groups, and each group of transmission structures is respectively close to the corresponding side wall of the second machine part.

In order to make it difficult for the locking shaft to come out of the hook, the lower surface of the hook is provided with an arc-shaped area which is arched upwards and is used for being matched with the top of the locking shaft. The design of the arc-shaped area can position the locking shaft, so that the locking shaft is not easy to separate from the hook part.

Compared with the prior art, the utility model has the advantages that: the locking shaft is hooked through the hook part to limit the locking shaft to be far away from the first machine part so as to lock the relative folding state of the first machine part and the second machine part, the production cost of the beverage extraction device can be reduced, the second machine part moves to the middle position through the limiting structure so as to release the forward movement limitation of the locking shaft, the locking shaft can move forward to enter the hook part in the strip-shaped hole after unlocking, the forward movement stroke of the locking shaft in the rotation process of the second machine part can be reduced, the track of the locking shaft can be conveniently and accurately controlled so as to ensure that the locking shaft accurately enters the hook part in the rotation process of the second machine part, the effective locking of the relative folding of the first machine part and the second machine part is realized, the matching precision of the beverage extraction device is higher, the first machine part and the second machine part are not easy to break down when being folded relatively, and the limiting structure with the sectional action is adopted, the resistance can be reduced in the later stage of the downward rotation process of the second machine part, the power is increased in the later stage of the upward rotation process, and the power output by the driving mechanism can be reduced.

Drawings

FIG. 1 is a right side view of an embodiment of the present utility model (with the second mechanism in the fully open position);

FIG. 2 is a perspective view of an embodiment of the present utility model (with the second member in an intermediate position);

FIG. 3 is a longitudinal cross-sectional view of FIG. 2;

FIG. 4 is a right side view of an embodiment of the present utility model (with the second member in the closed position);

FIG. 5 is a longitudinal cross-sectional view of FIG. 4;

FIG. 6 is an exploded perspective view of an embodiment of the present utility model;

fig. 7 is a perspective view of a limiting block in the embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in further detail below.

As shown in fig. 1 to 7, is a preferred embodiment of the present utility model. The up-down direction in the present embodiment means the height direction of the second work 2, the front-back direction means the length direction of the second work 2, and the left-right direction means the width direction of the second work 2.

The beverage extraction device in the embodiment comprises a first machine part 1, a second machine part 2, a driving mechanism and a limiting structure. Wherein the second machine member 2 is hinged to the rear end of the first machine member 1 in a vertically rotatable manner so as to be openable or closable relative to the first machine member 1 (see fig. 1, 2 and 4); specifically, the rear end of the second work 2 and the rear end of the first work 1 are hinged by a first rotation shaft 91 provided in the left-right direction (see fig. 2). Hooks 3 are arranged on two sides of the first machine part 1, and the upper part of each hook 3 is provided with a hook part 31 (see figure 1) extending along the front-back direction; the second member 2 is provided with a front and rear extending bar-shaped hole 21 on each side thereof, a locking shaft 20 is passed through the bar-shaped holes 21 on both sides at the same time (see fig. 1), and the locking shaft 20 is movable back and forth in the bar-shaped hole 21 and is hooked by the hook 31 (see fig. 4), thereby locking the relative closed state of the first member 1 and the second member 2. Compared with hydraulic driving, the locking shaft 20 and the hook part 31 are matched to lock the relative folding state of the first machine part 1 and the second machine part 2, so that the structure of the device can be simplified, and the production cost of the beverage extraction device can be reduced. The driving mechanism is for driving the second work 2 to rotate up and down and the lock shaft 20 to move forward and backward. The limiting structure serves to limit the forward movement of the locking shaft 20.

In this embodiment, the second organ 2 has, during rotation, a fully open position, an intermediate position and a closed position: when the second work 2 is in the fully open position, the cooperative cooperation of the driving mechanism and the limiting structure positions the locking shaft 20 at the rear end of the bar-shaped hole 21 and is separated from the hook 31 (see fig. 1); when the second work 2 rotates to the intermediate position, the stopper structure is able to act to release the forward movement restriction of the lock shaft 20, so that the driving mechanism is able to drive the lock shaft 20 to move forward in the bar-shaped hole 21 to enter the hook portion 31 (see fig. 2); when the second work 2 is in the closed position, the driving mechanism positions the lock shaft 20 at the front end in the bar-shaped hole 21 and is hooked by the hook 31 to restrict the lock shaft 20 from moving upward away from the first work 1 to lock the relative closed state of the first work 1 and the second work 2 (see fig. 4).

In the beverage extraction device of this embodiment, the hook portion 31 hooks the locking shaft 20 to limit the locking shaft 20 to be far away from the first machine member 1 upwards so as to lock the relative folding state of the first machine member 1 and the second machine member 2, so that the precision requirement for processing the driving mechanism can be reduced, the production cost of the beverage extraction device can be reduced, the limiting structure is also used for acting to release the forward movement limit of the locking shaft 20 when the second machine member 2 rotates to the middle position, so that the locking shaft 20 can move forward in the strip-shaped hole 21 to enter the hook portion 31 after unlocking, the forward movement stroke of the locking shaft 20 in the rotation process of the second machine member 2 can be reduced, the track of the locking shaft 20 can be controlled more accurately so as to ensure that the locking shaft 20 can enter the hook portion 31 accurately in the rotation process of the second machine member 2, the effective locking of the relative folding of the first machine member 1 and the second machine member 2 can be realized, the matching precision of the beverage extraction device is higher, the first machine member 1 and the second machine member 2 are not easy to break down when being folded relatively, and the limiting structure with the sectional action can be adopted, so that the limiting structure can reduce the downward power output in the later stage of the rotation process of the second machine member 2 can be reduced, and the upward power output in the rotation process can be reduced.

In order to further shorten the advancing stroke of the lock shaft 20 after unlocking, the angle between the second work 2 and the first work 1 in the intermediate position is less than or equal to 20 °.

The bottom wall of the second machine member 2 is provided with a through hole 22, and the limiting structure comprises a limiting block 4, an elastic piece 5 and a mounting plate 6 (see fig. 6). The limiting block 4 is arranged in front of the locking shaft 20 in a vertically movable manner (see fig. 2); specifically, the mounting plate 6 is fixed above the second machine member 2, and a first accommodating space X is provided between a lower surface of the mounting plate 6 and a bottom wall of the second machine member 2, the stopper 4 includes a main body 41 and a rod 42 extending downward from a lower edge of the main body 41, the main body 41 is accommodated in the first accommodating space X and can abut against the locking shaft 20, and the rod 42 is disposed in the through hole 22 (see fig. 3). A second accommodation space Y (see fig. 5) in which the lock shaft 20 is accommodated can also be formed between the lower surface of the main body portion 41 and the bottom wall of the second works 2. When the lever portion 42 is separated from the first machine member 1, the body portion 41 abuts against the lock shaft 20, and when the lower end of the lever portion 42 contacts the first machine member 1, the stopper 4 can be moved upward to separate the body portion 41 from the lock shaft 20 by being displaced and form the second accommodation space Y (see fig. 5), thereby releasing the restriction of the lock shaft 20 (see fig. 3 and 5). The upper surface of the main body 41 is provided with a slot 412 (see fig. 7), the bottom of the mounting plate 6 is provided with a plug-in post 61 inserted into the slot 412, and the elastic member 5 is a spring which is sleeved on the plug-in post 61 and enables the limiting block 4 to always have a moving trend downward approaching the first machine member 1 (see fig. 3). The rear lower side of the main body 41 is provided with a first inclined surface 411 (see fig. 3 and 5) inclined forward gradually from top to bottom, and the first inclined surface 411 can guide the locking shaft 20 to move forward and the stopper 4 to move upward so as to cause the locking shaft and the stopper to be dislocated.

As shown in fig. 3, the driving mechanism includes a handle 7 hinged to the second work 2 so as to be rotatable up and down, and a transmission structure provided between the handle 7 and the lock shaft 20 for converting the up and down rotation of the handle 7 into the forward and backward movement of the lock shaft 20. The driving mechanism of the embodiment is a manual driving mechanism, and due to the arrangement of the limiting structure, the user can manually operate the handle 7 more effort-saving. Specifically, the handle 7 is hinged to the second work 2 through a second rotation shaft provided in the left-right direction. The transmission structure comprises a first connecting rod 81, a second connecting rod 82 and a third connecting rod 83, wherein one end of the first connecting rod 81 is hinged to the lower side of the handle 7 through a first transmission shaft 84 arranged in the left-right direction, the other end of the first connecting rod 81, one end of the second connecting rod 82 and one end of the third connecting rod 83 are hinged through a second transmission shaft 85 arranged in the left-right direction, the other end of the second connecting rod 82 is hinged to the rear part of the second machine member 2 through a third transmission shaft 86 arranged in the left-right direction, and the other end of the third connecting rod 83 is rotationally connected with the locking shaft 20. The first drive shaft 84, the second drive shaft 85 and the third drive shaft 86 may be separate components or may be integrated into one of the two components that are hinged.

As shown in fig. 5, when the second work 2 is in the closed position, the line connecting the locking shaft 20 and the third transmission shaft 86 is located above the second transmission shaft 85. When the locking shaft 20 is hooked by the hook 31, the second link 82 applies an upward force to the locking shaft 20, and the hook 31 can restrict upward movement of the locking shaft 20, so that the locking shaft 20 can be stably in the hook 31, and the hook 31 is not easily disengaged; if the connecting line between the locking shaft 20 and the third transmission shaft 86 is disposed below the second transmission shaft 85, the effect of making the locking shaft 20 not easily separate from the hook 31 can be achieved by extending the length of the hook 31 in the front-rear direction, however, too long length of the hook 31 in the front-rear direction can result in too long advancing travel of the locking shaft 20, which not only requires the driving mechanism to output greater power, but also affects the accuracy of the locking shaft 20 entering the hook 31, and thus has higher requirements on the assembly accuracy of the beverage extraction device.

As shown in fig. 6, the lower side of the rear surface of the hook 31 is provided with a second slope 311 gradually sloped forward from top to bottom, and the second slope 311 is capable of guiding the locking shaft 20 into the hook 31. The lower surface of the hook 31 is provided with an arc-shaped region 312, and the arc-shaped region 312 is upwardly arched and is used for being matched with the top of the locking shaft 20, so that the locking shaft 20 can be positioned, and the locking shaft 20 is not easy to separate from the hook 31.

Claims (10)

1. A beverage extraction device is characterized by comprising

A first machine member (1) having a hook (3) provided on a side portion thereof, the hook (3) having a hook portion (31) extending in a front-rear direction at an upper portion thereof;

the second machine part (2) can be hinged to the rear end of the first machine part (1) in a vertically rotating manner, a strip-shaped hole (21) extending forwards and backwards is formed in the side wall of the front part of the second machine part (2), and a locking shaft (20) capable of moving forwards and backwards and being hooked by the hook part (31) is arranged in the strip-shaped hole (21) in a penetrating manner;

the driving mechanism is used for driving the second machine part (2) to rotate up and down and the locking shaft (20) to move back and forth;

a limit structure for limiting forward movement of the lock shaft (20);

the second organ (2) has a fully open position, an intermediate position and a closed position during rotation:

when the second machine member (2) is in the fully opened position, the cooperating engagement of the drive mechanism and the limit structure positions the locking shaft (20) at the rear end of the bar-shaped hole (21) and separated from the hook portion (31),

when the second machine member (2) rotates to the intermediate position, the limit structure can act to release the forward movement limit of the locking shaft (20), so that the driving mechanism can drive the locking shaft (20) to move forward in the strip-shaped hole (21) to enter the hook part (31),

when the second machine member (2) is located at the folding position, the driving mechanism positions the locking shaft (20) at the middle front end of the strip-shaped hole (21) and is hooked by the hook part (31) so as to limit the locking shaft (20) to be upwards away from the first machine member (1) to lock the relative folding state of the first machine member (1) and the second machine member (2).

2. Beverage extraction device according to claim 1, characterized in that the angle between the second organ (2) and the first organ (1) in the intermediate position is less than or equal to 20 °.

3. Beverage extraction device according to claim 1, wherein the second member (2) has perforations (22) in its bottom wall, the limiting structure comprising

A stopper (4) provided in front of the lock shaft (20) so as to be movable up and down, the stopper (4) including a main body portion (41) and a rod portion (42) extending downward from a lower edge of the main body portion (41), the rod portion (42) being provided to pass through the through hole (22), and when the rod portion (42) is separated from the first machine member (1), a rear end of the main body portion (41) being abutted against the lock shaft (20), and when a lower end of the rod portion (42) is brought into contact with the first machine member (1), the stopper (4) being movable upward so as to cause the main body portion rear end (41) to be displaced from the lock shaft (20), thereby releasing the forward movement restriction of the lock shaft (20);

and the elastic piece (5) enables the limiting block (4) to always have a downward movement trend to be close to the first machine part (1).

4. A beverage extraction device according to claim 3, wherein the limit structure further comprises a mounting plate (6) fixed above the second member (2), a first accommodation space (X) is provided between a lower surface of the mounting plate (6) and a bottom wall of the second member (2), the main body portion (41) is accommodated in the first accommodation space (X), and a second accommodation space (Y) in which the locking shaft (20) is accommodated is also formed between a lower surface of the main body portion (41) and the bottom wall of the second member (2); the top of the main body part (41) is provided with a slot (412), the bottom of the mounting plate (6) is provided with a plug-in column (61) inserted in the slot (412), and the elastic piece (5) is a spring sleeved on the plug-in column (61).

5. A beverage extraction device according to claim 3, wherein the rear underside of the body portion (41) is provided with a first ramp (411) which tapers forwardly from top to bottom, and/or the rear underside of the hook portion (31) is provided with a second ramp (311) which tapers forwardly from top to bottom.

6. Beverage extraction device according to claim 1, characterized in that the drive mechanism comprises a handle (7) hinged to the second organ (2) in a vertically rotatable manner, and a transmission structure provided between the handle (7) and the locking shaft (20) for converting the vertical rotation of the handle (7) into a forward and backward movement of the locking shaft (20).

7. Beverage extraction device according to claim 5, characterized in that the transmission structure comprises a first link (81), a second link (82) and a third link (83), one end of the first link (81) being hinged to the underside of the handle (7) by a first transmission shaft (84) arranged horizontally, the other end of the first link (81), one end of the second link (82) and one end of the third link (83) being hinged by a second transmission shaft (85) arranged horizontally, the other end of the second link (82) being hinged to the rear of the second organ (2) by a third transmission shaft (86) arranged horizontally, the other end of the third link (83) being in rotational connection with the locking shaft (20).

8. Beverage extraction device according to claim 6, wherein the connection of the locking shaft (20) and the third drive shaft (86) is located above the second drive shaft (85) when the second organ (2) is in the closed position.

9. The beverage extraction device according to claim 5, wherein the two sides of the second machine member (2) are respectively provided with a strip-shaped hole (21), the two sides of the first machine member (1) are respectively provided with a clamping hook (3), and the two ends of the locking shaft (20) respectively penetrate through the strip-shaped holes (21) at the corresponding sides and can be in fit connection with the hook parts (31) at the corresponding sides; the transmission structures are two groups, and each group of transmission structures is arranged close to the corresponding side wall of the second machine part (2).

10. Beverage extraction device according to one of claims 1 to 9, characterized in that the lower surface of the hook (31) is provided with an arc-shaped area (312), which arc-shaped area (312) is arched upwards and intended to cooperate with the top of the locking shaft (20).

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