A new hand-held grinder

Abstract

The utility model discloses a novel handheld grinder, include: rotary lid, grinding disc and collection box, rotary lid, grinding disc and collection box from top to bottom are stacked in proper order, and rotary lid is connected with the rotation of grinding disc, the integral setting of grinding disc center place has the pivot assembly, and the pivot assembly contains the step main shaft, and the bearing is set on the step main shaft, and the rotary lid cover is pressed on the bearing, the utility model discloses the integral setting of grinding disc center place has the pivot assembly, and the pivot assembly contains the step main shaft, and the bearing is set on the step main shaft, and the rotary lid cover is pressed on the bearing, and the rotary lid can be more stable silk slip rotation relative to the grinding disc through the bearing, and it is more labor saving when grinding, and the rotation wear and tear of grinding disc and rotary lid is reduced.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, specifically a novel handheld grinding tool. Background Technology

[0002] A grinder is a device or tool used to crush and grind solid materials into smaller particles or powder. Its core function is pulverization. There are many types of grinders, and their applications are extremely wide-ranging.

[0003] Existing small grinders generally use upper and lower grinding teeth to cut materials by rotating relative to each other. The cover containing the upper grinding teeth is in direct contact with the grinding disc, which leads to wear on the cover and the grinding disc, and also results in greater relative rotational resistance.

[0004] Therefore, we propose a novel handheld grinder to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a novel handheld grinder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel handheld grinder, comprising: a rotating cover, a grinding disc, and a collection box, wherein the rotating cover, the grinding disc, and the collection box are stacked sequentially from top to bottom, the rotating cover is rotatably connected to the grinding disc, and a rotating shaft assembly is integrally provided at the center of the grinding disc, the rotating shaft assembly comprising a stepped main shaft, a bearing being sleeved on the stepped main shaft, and the rotating cover pressing on the bearing.

[0007] Preferably, the upper surface edge of the rotating cover is integrally designed with anti-slip edges.

[0008] Preferably, the rotating cover has a through hole in the middle, which extends through the top and bottom surfaces of the rotating cover, and the inner wall of the through hole is radially fixed to the outer ring of the bearing.

[0009] Preferably, the rotating cover has an annular array of grinding teeth on its lower surface and an annular array of grinding teeth on its upper surface. The upper and lower grinding teeth rotate and alternate to perform shearing grinding on the object.

[0010] Preferably, the bottom of the grinding disc has several perforations.

[0011] Preferably, the upper port side of the collection box is integrally provided with several locking protrusions, which are slidably engaged with the grooves opened at the bottom of the grinding disc.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] A rotating shaft assembly is integrally set at the center of the grinding disc. The rotating shaft assembly includes a stepped main shaft with a bearing sleeved on it. The rotating cover presses on the bearing, and the bearing allows the rotating cover to rotate more stably and smoothly relative to the grinding disc, making grinding less strenuous and reducing the rotational wear of the grinding disc and the rotating cover. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a disassembly diagram of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention.

[0017] In the diagram: 1. Rotating cover; 11. Upper grinding tooth; 12. Anti-slip edge; 13. Through hole; 2. Grinding disc; 21. Drain hole; 22. Lower grinding tooth; 3. Collection box; 31. Middle support column; 32. Locking protrusion; 4. Rotating shaft assembly; 41. Bearing; 42. Stepped main shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a novel handheld grinder, comprising: a rotating cover 1, a grinding disc 2, and a collection box 3, wherein the rotating cover 1, the grinding disc 2, and the collection box 3 are stacked sequentially from top to bottom, the rotating cover 1 is rotatably connected to the grinding disc 2, and a rotating shaft assembly 4 is integrally provided at the center of the grinding disc 2, the rotating shaft assembly 4 including a stepped main shaft 42, a bearing 41 is sleeved on the stepped main shaft 42, the rotating cover 1 is pressed on the bearing 41, and the rotating cover 1 can rotate more stably and smoothly relative to the grinding disc 2 through the bearing 41 to grind the objects inside.

[0020] The upper surface edge of the rotating cover 1 is integrally designed with anti-slip edges 12, which increases the friction with the hand and makes it easier to manually drive the rotating cover 1 to rotate.

[0021] The rotating cover 1 has a through hole 13 in the middle, which passes through the upper and lower surfaces of the rotating cover 1. The inner wall of the through hole 13 is radially fixed to the outer ring of the bearing 41, so that the rotating cover 1 and the bearing 41 can slide axially and be detached, and the outer ring of the bearing 41 can be rotated radially.

[0022] The rotating cover 1 has an upper grinding tooth 11 arranged in a ring on its lower surface, and the grinding disc 2 has a lower grinding tooth 22 arranged in a ring on its upper surface. The upper grinding tooth 11 and the lower grinding tooth 22 rotate and alternate to perform shearing grinding on the object.

[0023] The bottom of the grinding disc 2 has several holes 21, through which the ground items fall into the collection box 3 for collection.

[0024] A central support column 31 is set in the middle of the collection box 3, and the grinding disc 2 is connected to the central support column 31 to support the grinding disc 2.

[0025] The upper port side of the collection box 3 is integrally provided with several locking protrusions 32, which slide and engage with the groove opened at the bottom of the grinding disc 2 to prevent the collection box 3 and the grinding disc 2 from separating.

[0026] Working principle: The grinding disc 2 is mounted on the collection box 3. The object to be ground is poured into the grinding disc 2, and the rotating cover 1 is placed on the grinding disc 2. At the same time, the rotating cover 1 is fitted onto the bearing 41. By operating the rotating cover 1 to rotate, the object is ground by the alternating rotation of the upper grinding teeth 11 and the lower grinding teeth 22. The ground object falls into the collection box 3 through the hole 21, thus completing the grinding process. The structure is simple and the operation is convenient.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel handheld grinder, comprising: A rotating cover (1), a grinding disc (2), and a collection box (3) are stacked sequentially from top to bottom. The rotating cover (1) and the grinding disc (2) are rotatably connected. The rotating cover (1) is characterized in that a rotating shaft assembly (4) is integrally provided at the center of the grinding disc (2). The rotating shaft assembly (4) includes a stepped main shaft (42). A bearing (41) is sleeved on the stepped main shaft (42). The rotating cover (1) is pressed on the bearing (41).

2. The novel handheld grinder according to claim 1, characterized in that, The rotating cover (1) has an integral anti-slip edge (12) at the edge of its upper surface.

3. A novel handheld grinder according to claim 2, characterized in that, The rotating cover (1) has a through hole (13) in the middle. The through hole (13) passes through the upper and lower surfaces of the rotating cover (1), and the inner wall of the through hole (13) is radially fixed to the outer ring of the bearing (41).

4. A novel handheld grinder according to claim 3, characterized in that, The rotating cover (1) has an upper grinding tooth (11) arranged in a ring on its lower surface, and the grinding disc (2) has a lower grinding tooth (22) arranged in a ring on its upper surface. The upper grinding tooth (11) and the lower grinding tooth (22) rotate and alternate to perform shearing grinding on the object.

5. A novel handheld grinder according to claim 4, characterized in that, The grinding disc (2) has several perforations (21) at its bottom.

6. A novel handheld grinder according to claim 1, characterized in that, The upper port side of the collection box (3) is integrally provided with several locking protrusions (32), which are slidably engaged with the grooves opened at the bottom of the grinding disc (2).

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