Lifting adjustment assembly and grinding device

Abstract

The embodiment of the present application discloses a lifting and adjusting assembly, including a lower shell, an outer grinding assembly, an adjusting ring and at least one spring. The lower shell is provided with a cavity, the first end of the at least one spring abuts against the bottom of the cavity, and the second end is connected to the outer grinding assembly, and the at least one spring provides support for the outer grinding assembly. A first convex ring is provided at the bottom of the adjusting ring, and the height of the first convex ring extending outward gradually transitions from the lowest point to the highest point; a wedge-shaped surface is provided at the top of the outer grinding assembly. The adjusting ring is rotated and the outer grinding assembly is driven to rise and fall in the cavity through the cooperation between the first convex ring and the wedge-shaped surface. The embodiment of the present application adopts the cooperation between the wedge-shaped structures to control the lifting and falling of the outer grinding assembly, and the minimum gap value between the inner grinding head and the grinding cavity is adjusted by the lifting and falling of the outer grinding assembly, thereby controlling the coarseness of the particles during grinding.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of grinding technology, and in particular to a lifting and adjusting component and a grinding device. Background Art

[0002] Grinding devices provide many conveniences for people's lives. For example, different condiments can be selected and ground for cooking; coffee beans can be ground to improve the taste of coffee; ingredients with health functions can be ground to improve people's immunity. However, personalized needs have put forward higher requirements on grinding devices, among which the coarseness of particles is one of the most important indicators. In the prior art, there is a grinding device, which includes an inner grinding head and an outer grinding head, and the inner grinding head can rotate on the inner side of the outer grinding head. The particles are filled in the gap between the inner grinding head and the outer grinding head, and the grinding is completed when the inner grinding head rotates, and the coarseness of the particles depends on the spacing between the inner and outer grinding heads. Summary of the invention

[0003] The embodiment of the present application provides a lifting and adjusting component and a grinding device, which adjusts the minimum gap value between the inner grinding head and the grinding chamber through the lifting and adjusting component, thereby adjusting the coarseness of the grinding particles during the grinding process.

[0004] The first aspect of the embodiment of the present application provides a lifting and adjusting assembly, comprising a lower shell body, which is provided with a cavity; and an outer grinding assembly which can be lifted and lowered in the cavity, and the outer grinding assembly is provided with a grinding cavity; and an adjusting ring which is arranged above the outer grinding assembly, and the adjusting ring is rotatably connected to the top of the lower shell body; and at least one spring, the first end of the at least one spring abuts against the bottom of the cavity, and the second end is connected to the outer grinding assembly, and the at least one spring of the lifting and adjusting assembly provides support for the outer grinding assembly; wherein, the bottom of the adjusting ring is provided with a first convex ring extending outward along its axial direction, and the height of the first convex ring extending outward gradually transitions from the lowest point to the highest point; the top of the outer grinding assembly is provided with a wedge surface which cooperates with the end face of the first convex ring, and the wedge surface is slidably connected to the end face of the first convex ring; the outer grinding assembly is driven to rise and fall in the cavity by rotating the adjusting ring and through the cooperation between the first convex ring and the wedge surface.

[0005] In some embodiments, the first convex ring includes two half rings, and the height of the half rings extending outward gradually transitions from the lowest point to the highest point; the two half rings are constructed into an annular structure, and the lowest end of one half ring is close to the highest end of the other half ring; the outer wall of the outer grinding component is provided with a first sliding block extending radially outward, the wedge surface is provided on the top of the first sliding block, and two first sliding blocks are provided and are arranged on both sides of the outer grinding component.

[0006] In some embodiments, a guide hole is provided at the bottom of the cavity, and the bottom of the external grinding assembly can movably pass through the guide hole.

[0007] In some embodiments, a slot hole for accommodating a spring is disposed at the bottom of the lower shell, and the spring is disposed in the slot hole.

[0008] In some embodiments, the outer wall of the adjustment ring is provided with a scale for observing the coarseness and fineness.

[0009] In some embodiments, the adjustment ring is provided with a second convex ring having the same structure as the first convex ring, and the second convex ring is nested on the outside of the first convex ring; the outer wall of the external grinding assembly is provided with a second slider having the same structure as the first slider; the first convex ring is slidably connected to the second slider.

[0010] In some embodiments, a central angle between a highest point of adjacent first protruding rings and a highest point of adjacent second protruding rings is 90 degrees.

[0011] In some embodiments, the highest point of the first convex ring and / or the second convex ring is provided with a limit block extending outward.

[0012] In some embodiments, the external grinding assembly includes a first shell, a second shell, and an external grinding head disposed between the first shell and the second shell, and the external grinding head is provided with the grinding chamber.

[0013] In some embodiments, a limiting notch is provided at the top of the outer grinding head, and a limiting protrusion that engages with the limiting notch is provided on the inner side of the first outer shell; or a limiting notch is provided at the bottom of the outer grinding head, and a limiting protrusion that engages with the limiting notch is provided on the inner side of the second outer shell; or the first outer shell and / or the second outer shell are provided with a limiting notch, and a limiting protrusion that engages with the limiting notch is provided on the top and / or bottom of the outer grinding head.

[0014] A second aspect of an embodiment of the present application provides a grinding device, comprising a lifting and adjusting assembly, an upper shell, and an inner grinding assembly as described in the above scheme; the inner grinding assembly comprises a shaft and an inner grinding head arranged at the lower part thereof, and the top of the shaft is rotatably connected to the upper shell; the inner grinding head is arranged in the grinding chamber, and the minimum gap value between the inner grinding head and the grinding chamber is adjusted by lifting the outer grinding assembly.

[0015] In some embodiments, a connecting column is disposed below the upper shell, the top of the connecting column is connected to the upper shell, and the bottom of the connecting column is connected to the lower shell.

[0016] In some embodiments, a limiting groove is provided on the side of the outer grinding assembly, and a limiting plate which can be inserted into the limiting groove is provided at the bottom of the upper shell, and the limiting plate is interference fit with the limiting groove.

[0017] Compared with the prior art, the embodiments of the present application use the cooperation between the wedge-shaped structures to control the lifting and lowering of the outer grinding assembly. The minimum gap value between the inner grinding head and the grinding chamber is adjusted by the lifting and lowering of the outer grinding assembly, which directly determines the degree of grinding of the material during the grinding process, and then controls the particle coarseness of the final product. The present application provides a wide range of grinding fineness options to meet different application requirements, and can easily achieve from coarse grinding to fine grinding. In the embodiments of the present application, the outer grinding assembly can be selected as a split structure or an integrated structure according to needs, and the choice is more flexible; among them, the advantage of the split structure is that the outer grinding head can be replaced at will according to needs or the degree of wear. When the outer grinding head is worn, the user does not need to replace the entire assembly, but only needs to replace the worn outer grinding head part, which reduces maintenance costs and improves the economy and durability of the equipment; and the structure of the integrated structure is relatively simple and easier to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of the lifting and lowering adjustment assembly in the embodiment of the present application;

[0020] Figure 2 for Figure 1 Explosion diagram of

[0021] Figure 3 This is a schematic diagram of the structure of the adjustment ring in the embodiment of the present application;

[0022] Figure 4 for Figure 3 A schematic cross-sectional structure diagram of ;

[0023] Figure 5 This is a schematic diagram of the top view of the internal grinding assembly in the embodiment of the present application;

[0024] Figure 6 for Figure 5 A three-dimensional schematic diagram of

[0025] Figure 7 for Figure 1 A schematic diagram of a top view structure;

[0026] Figure 8 for Figure 7 AA direction cross-sectional view;

[0027] Fig. 9 for Figure 7 BB direction cross-sectional view;

[0028] Fig.10 This is a schematic diagram of the combination of the adjustment ring and the inner grinding assembly in the embodiment of the present application;

[0029] Fig.11 This is a schematic diagram of the structure of an internal grinding assembly in an embodiment of the present application;

[0030] Fig.12 for Fig.11 Sectional view in assembled state;

[0031] Fig.13 This is a schematic diagram of the structure of another internal grinding assembly in an embodiment of the present application;

[0032] Fig.14 This is a schematic diagram of the structure of the grinding device in the embodiment of the present application;

[0033] Fig.15 for Fig.14 Schematic diagram of the top view of the structure in the assembled state;

[0034] Fig.16 for Fig.15 CC direction cross-sectional view;

[0035] Fig.17 Schematic diagram of the plug-in structure between the upper shell and the inner grinding assembly in this embodiment;

[0036] Fig.18 for Fig.17 Explosion diagram.

[0037] Description of reference numerals: 10-lifting adjustment assembly; 11-adjusting ring; 1101-first convex ring; 1102-second convex ring; 1103-limiting block; 1104-scale; 1105-limiting tooth ring; 12-external grinding assembly; 1201-first slider; 1202-second slider; 1203-wedge surface; 1204-grinding chamber; 1206-limiting groove; 121-first shell; 1211-first limit Positioning ring; 122-second outer shell; 1221-second limiting ring; 123-external grinding head; 1231-limiting notch; 13-spring; 14-lower shell; 1401-guide hole; 1402-slot hole; 20-upper shell; 2001-grinding chamber; 2002-connecting column; 2003-limiting plate; 2004-locking column; 30-inner grinding assembly; 3001-inner grinding head; 3002-shaft; 3003-bearing. DETAILED DESCRIPTION

[0038] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application and does not limit the present application. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present application without departing from the scope or spirit of the present application. For example, a feature shown or described as a part of an embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present application includes such modifications and variations within the scope of the appended claims and their equivalents.

[0039] In the description of the present application, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and do not require that the present application must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. The terms "connected", "connected", and "set" used in the present application should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component; it can be a wired electrical connection, a radio connection, or a wireless communication signal connection. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0040] One or more examples of the present application are shown in the accompanying drawings. The detailed description uses numbers and letter marks to refer to features in the drawings. Similar or similar marks in the drawings and description have been used to refer to similar or similar parts of the present application. As used herein, the terms "first", "second", and "third", etc. are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0041] like Figure 1 and Figure 2 As shown, according to an embodiment of the present application, a lifting and adjusting assembly 10 is provided, which is applied to a grinding device, and includes an adjusting ring 11, an outer grinding assembly 12, and a lower shell 14. The adjusting ring 11 is rotatably arranged on the top of the lower shell 14.

[0042] like Figure 3 and Figure 4 As shown, the bottom of the adjusting ring 11 is provided with a first convex ring 1101 extending outwardly along the axial direction of the adjusting ring 11, and the first convex ring 1101 includes two first half rings, and the height of the first half ring extending outwardly gradually and smoothly transitions from the lowest point to the highest point, forming a wedge shape. The two first half rings form a ring shape, and the lowest end of one of the first half rings is close to the highest end of the other first half ring.

[0043] In some embodiments, Figure 3 As shown, the outer wall of the adjustment ring 11 is provided with a scale 1104 for observing the coarseness.

[0044] like Figure 5 and Figure 6 As shown, the outer grinding assembly 12 includes a shell assembly, and a grinding chamber 1204 is arranged in the shell assembly. The outer wall of the shell assembly is provided with a first slider 1201 extending radially outward, and a wedge surface 1203 is arranged on the top of the first slider 1201. Two first sliders 1201 are provided, respectively arranged on both sides of the shell assembly.

[0045] like Figure 1 and Figures 7 to 10 As shown, a guide hole 1401 is provided at the bottom of the lower shell 14, the outer grinding assembly 12 is provided between the adjustment ring 11 and the lower shell 14, and the bottom of the shell assembly can movably pass through the guide hole 1401 of the lower shell 14. Two springs 13 are provided at the bottom of the lower shell 14, the top of the spring 13 abuts against the first slider 1201 of the grinding assembly, and provides an upward supporting force for the outer grinding assembly 12. The adjustment ring 11 is provided above the outer grinding assembly 12, and the end surface of the first convex ring 1101 of the adjustment ring 11 is slidably connected with the top surface of the first slider 1201 of the outer grinding assembly 12. Among them, the supporting force provided by the spring 13 to the outer grinding assembly 12 can keep the top surface of the first slider 1201 and the end surface of the first convex ring 1101 always in a fitting relationship.

[0046] During the rotation of the adjusting ring 11, the outer grinding assembly 12 can move along its axial direction with the cooperation of the spring 13 and the first convex ring 1101. In some embodiments, when the adjusting ring 11 rotates in the first direction, the distance between the outer grinding assembly 12 and the adjusting ring 11 gradually increases, the outer grinding assembly 12 moves downward, and the spring 13 is compressed; when the adjusting ring 11 rotates in the second direction, the spring 13 supports the outer grinding assembly 12 to move upward, and the distance between the outer grinding assembly 12 and the adjusting ring 11 gradually decreases; during the up-down movement, the spring 13 always maintains the support for the outer grinding assembly 12, so that the top surface of the first slider 1201 and the end surface of the first convex ring 1101 always abut against each other.

[0047] In some embodiments, Figure 2 and Figure 8 As shown, the bottom of the lower housing 14 is provided with two slots 1402 for accommodating the spring 13. The spring 13 is arranged in the slots 1402 to prevent the spring 13 from deflecting when being compressed or stretched.

[0048] In some embodiments, Figure 3 and Figure 4As shown, the adjustment ring 11 is provided with a second convex ring 1102, the structure of the second convex ring 1102 is the same as that of the first convex ring 1101, and the second convex ring 1102 is nested and arranged outside the first convex ring 1101. In this embodiment, the highest point of the first convex ring 1101 and the highest point of the second convex ring 1102 are arranged alternately, and in some embodiments, the central angle between the highest points of adjacent first convex rings 1101 and second convex rings 1102 is 90 degrees.

[0049] like Figure 5 and Figure 6 As shown, the outer grinding assembly 12 is provided with a second slider 1202 that is connected to the second convex ring 1102. The structure of the second slider 1202 is similar to that of the first slider 1201, and the difference is that the length of the second slider 1202 extending outward is greater than the length of the first slider 1201 extending outward, so as to achieve the connection with the second convex ring 1102. There are two second sliders 1202, which are respectively arranged on both sides of the housing assembly. In some embodiments, the central angle between the connected first slider 1201 and the second slider 1202 is 90 degrees. In some embodiments, the above-mentioned spring 13 can be provided with four, corresponding to the two first sliders 1201 and the two second sliders 1202.

[0050] In some embodiments, Figure 3 and Figure 4 As shown, the highest point of the second convex ring 1102 is provided with a stopper 1103 extending outwards, which can prevent the adjustment ring 11 from rotating excessively. In some embodiments, the stopper 1103 can also be provided on the first convex ring 1101, for example, to avoid interference between the second slider 1202 and the stopper 1103, therefore, the portion of the second convex ring 1102 extending outwards needs to be further extended; accordingly, the position of the second slider 1202 in the outer grinding assembly 12 also needs to be adjusted accordingly.

[0051] In some embodiments, Fig.11 and Fig.12 As shown, the outer grinding assembly 12 includes a first housing 121, a second housing 122, and an outer grinding head 123 disposed between the first housing 121 and the second housing 122, and the outer grinding head 123 is provided with a grinding chamber 1204. The first slider 1201 and the second slider 1202 are both disposed on the outer wall of the first housing 121. A first limiting ring 1211 is disposed on the inner side of the first housing 121, and a second limiting ring 1221 is disposed on the bottom of the second housing 122, and the outer grinding head 123 is limited between the first limiting ring 1211 and the second limiting ring 1221.

[0052] In some embodiments, Fig.11 and Fig.12As shown, a limiting notch 1231 is provided at the top of the outer grinding head 123, and a limiting protrusion that cooperates with the limiting notch 1231 is provided on the inner side of the second shell 122, which is used to make the outer grinding head 123 and the second shell 122 relatively stationary. In some embodiments, the limiting notch 1231 can also be provided at the bottom of the outer grinding head 123, and the limiting protrusion is provided at the bottom of the second shell 122. In some embodiments, the limiting notch 1231 can be provided in the first shell 121 or / and the second shell 122, and the limiting protrusion is provided on the outer grinding head 123.

[0053] In some embodiments, Fig.13 As shown, the first housing 121, the second housing 122 and the outer grinding head 123 are an integrated structure.

[0054] like Figure 14-16 As shown, an embodiment of the present application also discloses a grinding device, which includes the above-mentioned lifting and adjusting device, an upper shell 20, and an internal grinding assembly 30 arranged between the lifting and adjusting device and the upper shell 20, and a grinding bin 2001 is arranged on the top of the upper shell, and the grinding bin 2001 is communicated with the grinding chamber 1204.

[0055] The inner grinding assembly 30 includes a shaft 3002 and a conical inner grinding head 3001 disposed at the lower portion thereof, and the upper portion of the shaft 3002 is rotatably connected to the upper housing 20 via a bearing 3003. The inner grinding head 3001 is disposed in the grinding chamber 1204 of the outer grinding assembly 12, and the minimum clearance value between the inner grinding head 3001 and the grinding chamber 1204 is adjusted by lifting and lowering the outer grinding assembly 12.

[0056] In some embodiments, Fig.16 As shown, a connecting column 2002 is provided below the upper shell 20, the top of the connecting column 2002 is connected to the upper shell 20, and the bottom of the connecting column 2002 is connected to the lower shell 14. The lifting and lowering adjustment mechanism is restricted between the upper shell 20 and the lower shell 14, wherein the vertical direction of the adjusting ring 11 is restricted by the upper shell 20 and the lower shell 14, but it can still rotate and control the lifting and lowering of the outer grinding assembly 12.

[0057] In some embodiments, Fig.17 and 18 As shown, a limiting groove 1206 is provided between the first slider 1201 and the second slider 1202 of the outer grinding assembly 12, and a limiting plate 2003 which can be inserted into the limiting groove 1206 is provided at the bottom of the upper shell 20. The limiting plate 2003 is interference fit with the limiting groove 1206. The limiting plate 2003 is inserted into the limiting groove 1206 to prevent the outer grinding assembly 12 and the lower shell 14 from rotating relative to each other during grinding, thereby affecting the grinding quality and efficiency.

[0058] In some embodiments, Fig.14 and Fig.16 As shown, a gear ring is provided on the top of the adjusting ring 11, a lock slot is provided above the gear ring and at the bottom of the upper shell 20, a lock column 2004 is provided in the lock slot, and a second spring 13 is sleeved on the outer side of the lock column 2004. The second spring 13 is used to keep the lock column 2004 protruding outward, so that the lower end of the lock column 2004 and the gear ring are kept in mutual engagement.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lifting and adjusting assembly, comprising a lower housing (14) provided with a cavity; and an external grinding assembly (12) movably disposed in the cavity, wherein the external grinding assembly (12) is provided with a grinding cavity (1204); and An adjustment ring (11) is arranged above the outer grinding assembly (12), and the adjustment ring (11) is rotatably connected to the top of the lower shell (14); characterized in that: It also includes at least one spring (13), wherein a first end of the at least one spring (13) abuts against the bottom of the cavity, and a second end is connected to the outer grinding assembly (12), and the at least one spring (13) provides support for the outer grinding assembly (12); The bottom of the adjustment ring (11) is provided with a first convex ring (1101) extending outwards along its axial direction, and the height of the first convex ring (1101) extending outwards gradually transitions from the lowest point to the highest point; The top of the outer grinding assembly (12) is provided with a wedge-shaped surface (1203) matching with the end surface of the first convex ring (1101), and the wedge-shaped surface (1203) is slidably connected with the end surface of the first convex ring (1101); The adjusting ring (11) drives the outer grinding assembly (12) to rise and fall in the cavity through the cooperation between the first convex ring (1101) and the wedge surface (1203).

2. The lifting and lowering adjustment assembly according to claim 1, characterized in that: The first convex ring (1101) comprises two half rings, the height of the half rings extending outwards gradually transitions from the lowest point to the highest point, the two half rings form an annular structure, and the lowest end of one of the half rings is close to the highest end of the other half ring; The outer grinding assembly (12) is provided with a first sliding block (1201) extending radially outward, the wedge surface (1203) is arranged on the top of the first sliding block (1201), and two first sliding blocks (1201) are provided and are arranged on both sides of the outer grinding assembly (12).

3. The lifting and lowering adjustment assembly according to claim 2, characterized in that: The adjusting ring (11) is provided with a second convex ring (1102) having the same structure as the first convex ring (1101), and the second convex ring (1102) is nested and arranged outside the first convex ring (1101); The outer wall of the outer grinding assembly (12) is provided with a second sliding block (1202) having the same structure as the first sliding block (1201); The first convex ring (1101) is slidably connected to the second sliding block (1202).

4. The lifting and lowering adjustment assembly according to claim 3, characterized in that: The central angle between the highest point of the adjacent first convex ring (1101) and the highest point of the second convex ring (1102) is 90 degrees; or / and The highest point of the first convex ring (1101) and / or the second convex ring (1102) is provided with a limiting block (1103) extending outwards.

5. The lifting and lowering adjustment assembly according to claim 1, characterized in that: A guide hole (1401) is provided at the bottom of the cavity, and the bottom of the external grinding assembly (12) can movably pass through the guide hole (1401); or / and The bottom of the lower housing (14) is provided with a slot hole (1402) for accommodating a spring (13), and the spring (13) is arranged in the slot hole (1402); or / and The outer wall of the adjustment ring (11) is provided with a scale (1104) for observing the thickness.

6. The lifting and lowering adjustment assembly according to claim 1, characterized in that: The external grinding assembly (12) comprises a first outer shell (121), a second outer shell (122), and an external grinding head (123) arranged between the first outer shell (121) and the second outer shell (122), and the external grinding head (123) is provided with the grinding chamber (1204).

7. The lifting and lowering adjustment assembly according to claim 6, characterized in that: A limiting notch (1231) is provided on the top of the outer grinding head (123), and a limiting protrusion that cooperates and engages with the limiting notch (1231) is provided on the inner side of the first housing (121); or A limiting notch is provided at the bottom of the outer grinding head (123), and a limiting protrusion that is engaged with the limiting notch and is engaged with the limiting notch is provided on the inner side of the second outer shell; or The first shell (121) or / and the second shell (122) are provided with a limiting notch, and the top or / and the bottom of the outer grinding head (123) are provided with a limiting protrusion that is engaged with the limiting notch.

8. A grinding device, characterized in that: It comprises the lifting and adjusting assembly according to any one of claims 1 to 7, an upper shell (20), and an inner grinding assembly (30); The inner grinding assembly (30) comprises a shaft (3002) and an inner grinding head (3001) arranged at the lower part thereof, and the top of the shaft (3002) is rotatably connected to the upper shell (20); The inner grinding head (3001) is arranged in the grinding chamber (1204), and the minimum gap value between the inner grinding head (3001) and the grinding chamber (1204) is adjusted by lifting and lowering the outer grinding assembly (12).

9. The grinding device according to claim 8, characterized in that: A connecting column (2002) is provided below the upper shell (20), the top of the connecting column (2002) is connected to the upper shell (20), and the bottom of the connecting column (2002) is connected to the lower shell (14).

10. The grinding device according to claim 8, characterized in that: At least one limiting groove (1206) is provided on the side surface of the outer grinding assembly (12); The bottom of the upper shell (20) is provided with at least one limiting plate (2003) which can be inserted into the at least one limiting groove (1206).

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