Hopper cover of an electric coffee mill and an electric coffee mill

Abstract

Provided is a hopper cover for an electric coffee mill that is convenient to open and close, has a simple structure, and is difficult to lose. 【Solution means】It includes a mounting bracket 1 provided with a penetrating bean input passage. A cover plate 3 for closing the bean input passage, in which a bean input through hole 4 is formed, is connected to the mounting bracket 1. The mounting bracket 1 has a first height position and a second height position. When the cover plate 3 is in the first height position, a bean dropping gap 5 communicating with the bean input passage is formed between the bean input through hole 4 of the cover plate 3 and the mounting bracket 1. When the cover plate 3 is in the second height position, the bean input through hole 4 of the cover plate 3 abuts against the mounting bracket 1 and the bean input passage is closed.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee grinding devices, and more specifically, to the hopper cover and electric coffee mill of an electric coffee grinder.

Background Art

[0002] The process of grinding is very important in coffee production, and various unique specialized coffee grinders have emerged in the market. From the perspective of the grinding drive method, currently, coffee mills are divided into two basic types: electric coffee mills and manual coffee mills. In addition to different driving forces, there are also differences in the grinding effect. The particle uniformity of the coffee powder ground by an electric coffee mill is higher, and the amount of powder ground at one time is relatively large.

[0003] The basic principle of an electric coffee mill in the prior art is to put beans into the hopper from the hopper inlet and drive the grinding of the beans in the hopper by the grinding mechanism with a motor. In order to simplify the internal structure of the coffee mill, usually, a through-hole bean dropping type hopper is adopted. The through-hole bean dropping type hopper is usually provided with a cover plate at the hopper opening to prevent the beans from jumping out and the influence on humidity caused by the overly long contact between the beans and air during the operation of the coffee mill. A removable cover plate is selected for the cover plate, which has the problems of low operation convenience and easy loss during use.

Summary of the Invention

[0004] Aiming at the drawbacks existing in the prior art, the purpose of this utility model is to provide a hopper cover for an electric coffee mill that is convenient for opening and closing operations, has a simple structure, and is not easy to lose. To achieve the above purpose, this utility model provides the following technical solutions.

[0005] In one aspect of the present utility model, it includes a mounting bracket provided with a penetrating bean input passage, and a cover plate for closing the bean input passage with a bean input through hole formed in the mounting bracket is connected to the mounting bracket. The mounting bracket has a first height position and a second height position. When the cover plate is at the first height position, a bean dropping gap communicating with the bean input passage is formed between the bean input through hole of the cover plate and the mounting bracket. When the cover plate is at the second height position, the bean input through hole of the cover plate abuts against the mounting bracket and the bean input passage is closed, providing a hopper cover for an electric coffee mill.

[0006] As a further improvement of the present utility model, the cover plate includes a guide plate for covering the bean input passage, and an arc-shaped guide surface recessed from the outside to the bean input through hole in the radial direction is formed on the guide plate.

[0007] As a further improvement of the present utility model, a gasket is provided at the lower end of the bean input through hole of the cover plate, and the material of the gasket is a deformable elastic material.

[0008] As a further improvement of the present utility model, the cover plate includes a guide plate for covering the bean input passage. A connecting portion is bent inward and extended at the position of the bean input through hole on the guide plate. A connecting groove for fitting with the connecting portion is provided on the gasket, and the gasket is connected to the connecting portion through the connecting groove.

[0009] As a further improvement of the present utility model, the cover plate is slidably connected to the mounting bracket and / or screwed to the mounting bracket.

[0010] As a further improvement of the present utility model, the cover plate is slidably connected to the mounting bracket. A slide groove is provided on the cover plate or the mounting bracket, and a slider is provided on the corresponding mounting bracket or cover plate. The slide groove is a linear groove extending in the axial direction or an inclined groove extending in a spiral shape. At one end of the slide groove close to the first height position, a first positioning groove extends laterally.

[0011] As a further improvement of the present utility model, the cover plate is slidably connected to the mounting bracket, a ball plunger assembly is provided on the mounting bracket or the cover plate, and a second positioning groove for fitting with the ball plunger assembly is provided on the corresponding cover plate or mounting bracket.

[0012] As a further improvement of the present utility model, the number of the ball plunger assemblies and / or the second positioning grooves is two, and they are respectively provided corresponding to the first height position and the second height position.

[0013] As a further improvement of the present utility model, the mounting bracket is surrounded by an outer annular part and an inner annular part to form a cylindrical structure, a bean feeding passage is formed between the inner annular part and the outer annular part, the cover plate further includes a connection sleeve sleeved on the outer annular part, the connection sleeve can move up and down relative to the outer annular part, and the bean feeding through hole is provided in a fitting manner with the inner annular part.

[0014] The present utility model further provides an electric coffee mill including a main body housing and a grinding assembly. A bean feeding opening communicating with the grinding assembly is provided in the main body housing, the main body housing is provided with the hopper cover described in any one of the above, and the mounting bracket is mounted on the bean feeding opening.

[0015] As a further improvement of the present utility model, a motor mounting seat with a motor mounting cavity provided in the axial direction is provided in the main body housing, the mounting bracket is fixedly connected to the motor mounting seat, an arc-shaped cover covering the motor mounting cavity is formed at the axis center, the bean feeding passage of the mounting bracket is provided to go around the arc-shaped cover, and when the cover plate is at the second height position, the bean feeding through hole of the cover plate abuts against the arc-shaped cover and the bean feeding passage is closed.

[0016] To sum up, the present utility model includes at least one of the following beneficial technical effects.

[0017] By adopting the above technical solution, the present utility model has the following advantages.

[0018] By closing the hopper of the coffee mill with a lid plate that moves up and down, the ejection of coffee beans and the scattering of powder during the operation of the coffee mill are prevented. On the other hand, the noise during the operation of the coffee mill is reduced. By adjusting the height of the lid plate to open and close the bean input passage, it is no longer necessary to attach and detach the lid plate during use, and the operation is simple. When the liftable lid plate is closed, the internal space of the coffee mill becomes a bean storage space. Since the liftable lid plate is difficult to escape, it is possible to reduce the escape of coffee beans and ground powder during the removal of the coffee mill, and at the same time, reduce the volume and height of the coffee mill, miniaturize the volume of the coffee mill during portability, and make it easier to carry. By providing the hopper cover as a non-detachable mounting bracket and a lid plate, the loss of the lid plate can be effectively prevented. In addition, the liftable lid plate closes the bean input passage and forms a bean input through-hole in the main body of the lid plate, and can guide the coffee beans to be uniformly input.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0020] The embodiments of the present utility model will be described in detail below. Examples of the above embodiments are shown in the drawings, and the same or similar reference numerals throughout the drawings represent the same or similar members or members having the same or similar functions. The embodiments described below with reference to the drawings are exemplary only and are merely for the purpose of interpreting the present utility model and should not be construed as limiting the present utility model.

[0021] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "center", "lateral direction", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is the orientation or positional relationship shown based on the drawings. This is merely for the convenience of explaining and simplifying the description of the present utility model, and does not indicate or imply that the mentioned device or member must have a specific orientation and be configured and operated in a specific orientation. Therefore, it should be understood that this does not limit the present utility model. Unless otherwise specified, "a plurality" means two or more.

[0022] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "mounting", "connecting", and "joining" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, or a communication inside two members. It should be noted that those skilled in the art can understand the specific meaning of the above terms in the present utility model according to the specific situation.

[0023] Although the embodiments of the present utility model are shown and described, those skilled in the art can make changes, modifications, substitutions, and variations to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is limited by the scope of the utility model registration claims and their equivalent substitutions. It should be understood that all improvements that do not require creative labor are included in the protection scope of the present utility model.

[0024] A specific embodiment is as shown in FIGS. 1-2. The hopper cover of the electric coffee mill includes a mounting bracket 1 for fixedly connecting to the hopper inlet of the coffee mill. A through bean inlet passage 2 is provided in the mounting bracket 1. The cover plate 3 is provided on the mounting bracket 1 so as to be vertically adjustable. A bean inlet through hole 4 is formed in the cover plate 3. When the cover plate 3 rises from the mounting bracket 1 to the first height position, a bean dropping gap 5 communicating with the bean inlet passage 2 is formed between the bean inlet through hole 4 of the cover plate 3 and the mounting bracket 1. When the cover plate 3 approaches the mounting bracket 1 and descends to the second height position, the bean inlet through hole 4 of the cover plate 3 abuts against the mounting bracket 1 and the bean inlet passage 2 is closed. The connection method between the cover plate 3 and the mounting bracket 1 may be a slidable connection or a screw connection, and the height position of the cover plate 3 may be adjusted linearly or spirally.

[0025] Taking the slidable connection as an example, the mounting bracket 1 is provided with slide grooves, and the cover plate 3 is provided with sliders that fit into the slide grooves. Preferably, the number of slide grooves is at least two and they are symmetrically provided on the mounting bracket 1.

[0026] As shown in FIG. 3, the slide groove 18 may extend linearly in the axial direction of the mounting bracket 1. Preferably, a positioning groove 19 may extend laterally at one end of the slide groove 18 close to the first height. When the cover plate 3 is linearly pulled upward to reach the first height position, it is further positioned in the first positioning groove 19 by rotating the slider on the cover plate 3.

[0027] As shown in FIG. 4, the slide groove 18 may be an inclined groove that extends spirally on the outer peripheral surface of the mounting bracket 1. Preferably, a first positioning groove 19 may extend laterally at one end of the slide groove 18 close to the first height. When the cover plate 3 reaches the first height position along the inclined groove by rotation, it is further positioned in the first positioning groove 19 by rotating the slider on the cover plate 3.

[0028] The cover plate 3 opens and closes the bean input passage 2 in a lifting manner, and the user can operate it conveniently regardless of whether pushing / pulling or a spiral is adopted. The cover plate 3 and the mounting bracket 1 are not removable, and the loss of the cover plate 3 during use is prevented.

[0029] The upper end surface of the cover plate 3 is a guide plate 6. An arc-shaped guide surface that recesses radially from the outside to the bean input through hole 4 is formed on the guide plate 6. When the cover plate 3 descends to the second height, the guide plate 6 completely covers the bean input passage 2 in the mounting bracket 1. Thereby, the cover plate 3 exerts the function of the hopper cover and also exerts the function of the bean dropping guide plate 6. Multiple functions are integrated, and the structure of the coffee mill is simplified.

[0030] A ball plunger assembly 10 is provided on the mounting bracket 1, and a positioning groove 11 that fits with the ball plunger assembly 10 is provided on the cover plate 3, or the cover plate 3 is provided with a ball plunger assembly 10, and a second positioning groove 11 that fits with the ball plunger assembly 10 is provided on the mounting bracket 1. The ball plunger assembly 10 includes an elastic member and a ball. When the ball of the ball plunger assembly 10 is locked in the second positioning groove 11, the two states of the first height position and the second height position of the cover plate 3 are locked, and it also plays a role in indicating the completion of the state switching of the cover plate 3. The number of the ball plunger assembly 10 or / and the second positioning groove 11 is two, and they are respectively provided corresponding to the first height position and the second height position. Preferably, the number of both the ball plunger assembly 10 and the second positioning groove 11 is two, thereby making the locking state of the cover plate 3 more stable.

[0031] The cover plate 3 includes a guide plate 6 and a connection sleeve 12 on the upper end surface. A gasket 7 is provided at the lower end of the bean input through-hole 4 on the guide plate 6. The material of the gasket 7 is a deformable elastic material, such as a high-elastic polymer material like rubber, silicon, or foamed material. The gasket 7 serves as a contact portion that directly contacts the mounting bracket 1. By adopting a deformable elastic material, the protective effect of preventing collisions can be achieved, avoiding deformation due to excessive adjustment of the cover plate 3. On the other hand, the gasket 7 reduces the gap after the cover plate 3 and the mounting bracket 1 are in closed contact, playing a sealing role and further preventing the intrusion of foreign objects or dust.

[0032] On the guide plate 6, a connecting portion 8 is bent inward and extends at the position of the bean input through-hole 4. A connecting groove 9 that fits with the connecting portion 8 is provided on the gasket 7. The gasket 7 is connected to the connecting portion 8 through the connecting groove 9. The connection relationship between the gasket 7 and the connecting portion 8 may be adhesion, engagement, or interference fit. Since the inner annular surface and the lower end surface of the gasket 7 are force-bearing contact surfaces, by making the connecting portion 8 have a bent-inward part, the force received by the connecting groove 9 of the gasket 7 and the connecting portion 8 can be decomposed, reducing deformation and detachment due to the force received at the connection site between the gasket 7 and the guide plate 6.

[0033] The mounting bracket 1 is surrounded by an outer annular part and an inner annular part to form a cylindrical structure. A bean input passage 2 is formed between the inner annular part and the outer annular part. The connection sleeve 12 is slidably connected or screw-connected to the outer annular part. An arc-shaped cover 16 is provided on the inner annular part. A coffee bean dropping guide portion is formed by the arc-shaped cover 16 and the guide plate 6. Preferably, the guide plate 6 and the arc-shaped cover 16 are selected as metal plates, whereby the outer surface of the coffee mill can be easily cleaned.

[0034] As shown in Fig. 5, this utility model includes a main body housing 13, in which a grinding assembly 17 is provided. A bean input opening 14 communicating with the grinding assembly 17 is provided in the main body housing 13. A mounting bracket 1 is fixed to the bean input opening 14. The mounting bracket 1 is surrounded by an outer annular part and an inner annular part to form a cylindrical structure. A bean input passage 2 is formed between the inner annular part and the outer annular part. In the main body housing 13, a motor mounting seat 15 with a motor mounting cavity provided in the axial position is provided. The mounting bracket 1 is fixedly connected to the motor mounting seat 15. The cover plate 3 further includes a connection sleeve 12 sleeved on the outer annular part. The connection sleeve 12 is connected to the outer annular part in a vertically movable manner. The inner annular part forms an arc-shaped cover body 16 covering the coffee mill motor mounting cavity. The bean input through hole 4 of the cover plate 3 abuts against the arc-shaped cover body 16 to close the bean input passage 2. An electric coffee mill is further provided.

[0035] The above is only the preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. Any technical solutions based on the idea of this utility model shall be included in the protection scope of this utility model. It should be noted that multiple improvements and modifications made by those skilled in the art without departing from the principle of this utility model should also be regarded as within the protection scope of this utility model.

Explanation of Reference Numerals

[0036] 1 Mounting bracket 2 Bean input passage 3 Cover plate 4 Bean input through hole 5 Bean dropping gap 6 Guide plate 7 Gasket 8 Connection part 9 Connection groove 10 Ball plunger assembly 11 Positioning groove 12 Connection sleeve 13 Main body housing 14 Bean input opening 15 Motor mounting seat 16 Arc-shaped cover body 17 Crushing assembly 18 Slide groove 19 Positioning groove

Claims

1. A hopper cover for an electric coffee mill, comprising a mounting bracket (1) provided with a through bean input passage (2), wherein a cover plate (3) for closing the bean input passage (2) having a bean input through hole (4) formed therein is connected to the mounting bracket (1), the mounting bracket (1) has a first height position and a second height position, and when the cover plate (3) is at the first height position, a bean dropping gap (5) communicating with the bean input passage (2) is formed between the bean input through hole (4) of the cover plate (3) and the mounting bracket (1), and when the cover plate (3) is at the second height position, the bean input through hole (4) of the cover plate (3) abuts against the mounting bracket (1) to close the bean input passage (2).

2. The hopper cover of the electric coffee mill according to claim 1, wherein the cover plate (3) includes a guide plate (6) for covering the bean input passage (2), and an arc-shaped guide surface recessed radially inward from the outside to the bean input through hole is formed in the guide plate (6).

3. The hopper cover of the electric coffee mill according to claim 1, wherein a gasket (7) is provided at the lower end of the bean input through hole (4) of the cover plate (3), and the material of the gasket (7) is a deformable elastic material.

4. The hopper cover of the electric coffee mill according to claim 3, wherein the cover plate (3) includes a guide plate (6) for covering the bean input passage (2), a connecting portion (8) is bent inward and extended at the position of the bean input through hole (4) in the guide plate (6), a connecting groove (9) for fitting with the connecting portion (8) is provided in the gasket (7), and the gasket (7) is connected to the connecting portion (8) through the connecting groove (9).

5. The hopper cover of the electric coffee mill according to claim 1, wherein the cover plate (3) is slidably connected and / or screwed to the mounting bracket (1).

6. The hopper cover of the electric coffee mill according to claim 5, wherein the cover plate (3) is slidably connected to the mounting bracket (1), a slide groove (18) is provided in the cover plate or the mounting bracket, a slider is provided in the corresponding mounting bracket or cover plate, the slide groove (18) is a straight groove extending in the axial direction or an inclined groove extending in a spiral shape, and a first positioning groove (19) extends laterally at one end of the slide groove close to the first height position.

7. The cover plate (3) is slidably connected to the mounting bracket (1). A ball plunger assembly (10) is provided on the mounting bracket (1) or the cover plate (3), and a second positioning groove (11) that fits with the ball plunger assembly (10) is provided on the corresponding cover plate (3) or mounting bracket (1). The hopper cover of the electric coffee mill according to claim 6, characterized in that.

8. The ball plunger assembly (10) and / or the second positioning groove (11) are two in number and are provided corresponding to the first height position and the second height position respectively. The hopper cover of the electric coffee mill according to claim 7, characterized in that.

9. An electric coffee mill including a main body housing (13) and a grinding assembly (17). A bean input opening (14) communicating with the grinding assembly (17) is provided in the main body housing (13). The main body housing (13) is provided with the hopper cover according to any one of claims 1 to 8. The mounting bracket (1) is attached to the bean input opening (14). An electric coffee mill, characterized in that.

10. In the main body housing (13), a motor mounting seat (15) with a motor mounting cavity provided in the axial position is provided. The mounting bracket (1) is fixedly connected to the motor mounting seat (15). An arc-shaped cover body (16) covering the motor mounting cavity is formed at the axis center. The bean input passage (2) of the mounting bracket (1) is provided to go around the arc-shaped cover body (16). When the cover plate (3) is in the second height position, the bean input through hole (4) of the cover plate (3) abuts against the arc-shaped cover body (16) and the bean input passage (2) is closed. The electric coffee mill according to claim 9, characterized in that.

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