A grinding body and a grinding device

Abstract

The utility model discloses a kind of grinding main body and grinding device, the grinding device includes the grinding main body with built-in grinding pass, grinding head, driving shaft grinding ring and be used to control the screwing adjustment mechanism of relative longitudinal movement between the grinding head and grinding ring, the screwing adjustment mechanism is equipped with the screwing adjustment ring for hand screwing, the screwing adjustment ring is equipped with the scale mark for indicating screwing stroke, the outside wall of the grinding main body is equipped with the zero-adjusting auxiliary area adjacent to the screwing adjustment ring, the zero-adjusting auxiliary area is equipped with zero-adjusting indicating ring;The zero-adjusting indicating ring is equipped with the indicating mark for pointing to the scale mark, to pass through the zero-adjusting indicating ring by screwing, the indicating mark points to the preset scale at the scale mark;The zero-adjusting auxiliary area is equipped with the friction member for contacting the zero-adjusting indicating ring, to hinder the rotation of the zero-adjusting indicating ring. Adopt the utility model, simple structure, and easy to dismount cleaning.

Description

Technical Field

[0001] This utility model relates to the field of grinding tool technology, and in particular to a grinding body and a grinding device using the grinding body. Background Technology

[0002] Commonly used hand grinding tools in daily life, such as coffee grinders, generally include a grinding body, a grinding head, a drive shaft for driving the grinding head to rotate, a grinding ring disposed in the grinding channel, and a turning adjustment mechanism for controlling the relative longitudinal movement between the grinding head and the grinding ring.

[0003] Since the grinding surfaces used for grinding materials between existing grinding heads and grinding rings are generally inclined, in order to control the fineness of grinding, the relative longitudinal position between the grinding head and the grinding ring is generally controlled by the aforementioned screw adjustment mechanism to control the spacing between the grinding surfaces.

[0004] The screw adjustment mechanism typically drives the grinding ring or grinding head up and down via a threaded connection. However, the thread machining and scale marking machining of the screw adjustment ring are carried out independently. As a result, after the grinding device is assembled, the starting mark of the scale marking cannot be completely aligned with the fixed indicator mark on the grinding body.

[0005] On the other hand, during long-term use, wear and deformation of the threads can lead to an increase in the stroke, resulting in zero-point drift and thus affecting the use. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a grinding body with simple zeroing operation.

[0007] The technical problem to be solved by this utility model is to provide a grinding device with simple zeroing operation.

[0008] To solve the above-mentioned technical problems, this utility model provides a grinding body for a grinding device. The grinding device includes a grinding body with a grinding channel inside, a grinding head, a drive shaft for driving the grinding head to rotate, a grinding ring disposed in the grinding channel, and a turning adjustment mechanism for controlling the relative longitudinal movement between the grinding head and the grinding ring. The turning adjustment mechanism is provided with a turning adjustment ring for manual turning, and the turning adjustment ring is provided with scale markings for indicating the turning stroke. The present invention is characterized in that...

[0009] The outer wall of the grinding body is provided with a zero-adjustment auxiliary area adjacent to the screw adjustment ring, and a zero-adjustment indicator ring is sleeved on the zero-adjustment auxiliary area;

[0010] The zeroing indicator ring is provided with an indicator mark for pointing to the scale mark, so that by rotating the zeroing indicator ring, the indicator mark is made to point to a preset scale mark of the scale mark;

[0011] The zero-adjustment auxiliary area is provided with a friction element for contacting the zero-adjustment indicator ring to prevent the rotation of the zero-adjustment indicator ring.

[0012] As an improvement to the above solution, the zeroing auxiliary area is provided with a first friction groove for installing the friction element, and the friction element is installed in the first friction groove to restrict the movement of the friction element.

[0013] As an improvement to the above solution, the friction element has a ring-shaped structure with a preset cross-sectional shape, and the friction element is sleeved on the first friction groove.

[0014] As an improvement to the above solution, the zeroing auxiliary area is provided with at least two of the first friction grooves, and each of the first friction grooves is provided with the elastic element.

[0015] As an improvement to the above solution, the friction element is made of a material capable of elastic deformation.

[0016] As an improvement to the above solution, the grinding channel is provided with an auxiliary frame for guiding the drive shaft to move up and down, and the auxiliary frame is provided with a bearing hole for the drive shaft to pass through;

[0017] The grinding head is located at one end of the drive shaft, and the other end of the drive shaft is provided with a detachable limiting member. The limiting member is supported on the upper end of the auxiliary frame to prevent the drive shaft from completely disengaging from the bearing hole.

[0018] As an improvement to the above solution, the grinding channel is provided with an elastic element for maintaining the downward pressing trend of the grinding head, and the elastic element is sandwiched between the grinding head and the auxiliary frame.

[0019] As an improvement to the above solution, the drive shaft is provided with a stepped surface for limiting the maximum lifting height of the drive shaft, so that when the drive shaft is raised to the maximum height, the stepped surface abuts against the bottom surface of the auxiliary frame.

[0020] As an improvement to the above solution, the inner wall of the zero-adjustment indicator ring is provided with at least one second friction groove that is adapted to the friction element. The sum of the groove depth of the first friction groove and the groove depth of the second friction groove is less than the cross-sectional width of the friction element, so as to clamp and compress the friction element.

[0021] A grinding device includes the above-mentioned grinding body, grinding head, drive shaft for driving the grinding head to rotate, grinding ring disposed in the grinding channel, and a turning adjustment mechanism for controlling the relative longitudinal movement between the grinding head and the grinding ring. The turning adjustment mechanism is provided with a turning adjustment ring for manual turning, and the turning adjustment ring is provided with scale markings for indicating the turning stroke.

[0022] Implementing this utility model has the following beneficial effects:

[0023] This utility model discloses a grinding body, wherein the outer side wall of the grinding body is provided with a zero adjustment auxiliary area adjacent to the screw adjustment ring, and a zero adjustment indicator ring is sleeved on the zero adjustment auxiliary area;

[0024] The zeroing indicator ring is provided with an indicator for pointing to the scale mark. By rotating the zeroing indicator ring, the indicator is made to point to a preset mark of the scale mark. Therefore, after the grinding device is assembled, the adjusting ring can be rotated to the starting point of the stroke, and then the zeroing indicator ring can be rotated to make the indicator point to a preset mark of the scale mark, such as the zero point of the scale mark.

[0025] Furthermore, in order to limit the autonomous rotation of the zero-adjustment indicator ring, the zero-adjustment auxiliary area is provided with a friction element for contacting the zero-adjustment indicator ring to hinder its rotation and ensure the indication stability of the zero-adjustment indicator ring.

[0026] Accordingly, this utility model also discloses a grinding device using the above-mentioned grinding body, which is simple to zero. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the grinding device of this utility model;

[0028] Figure 2 This is an exploded view of the grinding device of this utility model;

[0029] Figure 3 This is a cross-sectional structural diagram of the grinding device of this utility model. Detailed Implementation

[0030] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0031] See Figure 1 , 2In embodiment 3, the first embodiment of this utility model provides a grinding body for a grinding device. The grinding device includes a grinding body 1 with a grinding channel 1a inside, a grinding head 2, a drive shaft 3 for driving the grinding head 2 to rotate, a grinding ring 4 disposed in the grinding channel 1a, and a screw adjustment mechanism 5 for controlling the relative longitudinal movement between the grinding head 2 and the grinding ring 4. The screw adjustment mechanism 5 is provided with a screw adjustment ring 51 for manual screwing, and the screw adjustment ring 51 is provided with a scale mark 51a for indicating the screwing stroke.

[0032] The outer wall of the grinding body 1 is provided with a zero-adjustment auxiliary area adjacent to the screw adjustment ring 51, and a zero-adjustment indicator ring 6 is sleeved on the zero-adjustment auxiliary area;

[0033] The zeroing indicator ring 6 is provided with an indicator mark 6a for pointing to the scale mark 51a, so that by rotating the zeroing indicator ring 6, the indicator mark 6a can be made to point to a preset scale mark of the scale mark 51a, such as the zero point of the scale mark 51a.

[0034] The zero-adjustment auxiliary area is provided with a friction element 7 for contacting the zero-adjustment indicator ring 6 to prevent the rotation of the zero-adjustment indicator ring 6.

[0035] Specifically, in order to stabilize the position of the friction element 7, the zeroing auxiliary area is provided with a first friction groove 11 for installing the friction element 7. The friction element 7 is installed in the first friction groove 11 to restrict the movement of the friction element 7.

[0036] The friction element 7 is a ring-shaped structure with a preset cross-sectional shape, and the friction element 7 is fitted onto the first friction groove 11. Preferably, the friction element 7 is a ring-shaped structure with a circular or elliptical cross-sectional shape.

[0037] To further limit the autonomous rotation of the zero-adjustment indicator ring 6, the zero-adjustment auxiliary area is provided with at least two of the first friction grooves 11, each of which is provided with the friction element 7. Preferably, the friction element 7 is made of a material capable of elastic deformation, such as rubber, silicone, or other materials capable of elastic deformation and having a high coefficient of friction.

[0038] The inner wall of the zero-adjustment indicator ring 6 has at least one second friction groove 61 adapted to the friction element 7. The sum of the groove depth of the first friction groove 11 and the groove depth of the second friction groove 61 is less than the cross-sectional width of the friction element 7, so as to clamp and compress the friction element 7. Preferably, the friction element 7 can be a rubber ring with a circular cross-section. The first friction groove 11 and the second friction groove 61 are arc-shaped grooves. This configuration can greatly increase the difficulty for the zero-adjustment indicator ring 6 to disengage from the adjustment indicator area, and can also increase the rotational friction of the zero-adjustment indicator ring.

[0039] The grinding channel 1a is provided with an auxiliary frame 12 for guiding the drive shaft 3 to rise and fall. The auxiliary frame 12 is provided with a bearing hole 121 for the drive shaft 3 to pass through.

[0040] The grinding head 2 is located at one end of the drive shaft 3, and the other end of the drive shaft 3 is provided with a detachable limiting member 31. The limiting member 31 is supported on the upper end of the auxiliary frame 12 to prevent the drive shaft 3 from completely disengaging downward from the bearing hole 121. The limiting member 31 can be a retaining ring, nut, etc. Correspondingly, the drive shaft 3 is provided with a corresponding retaining ring groove and a screw portion.

[0041] The grinding channel 1a is provided with an elastic element 32 for maintaining the downward pressure of the grinding head 2. The elastic element 32 is sandwiched between the grinding head 2 and the auxiliary frame 12. The elastic element 32 is preferably a spring. With this configuration, when excessive jamming occurs during grinding, the drive shaft 3 can be actively lifted to quickly resolve the jamming problem.

[0042] On the other hand, in order to determine the minimum gap between the grinding head 2 and the grinding ring 4 during assembly, the drive shaft 3 is provided with a stepped surface 33 for limiting the maximum lifting height of the drive shaft 3, so that when the drive shaft 3 is raised to its maximum height, the stepped surface 33 abuts against the bottom surface of the auxiliary frame 12. That is, when the adjustment ring 51 is turned until the stepped surface 33 abuts against the bottom surface of the auxiliary frame 12, it can be determined that the grinding head 2 and the grinding ring 4 are in a state of minimum gap, and then the zeroing indicator ring 6 can be actively turned to point the indicator mark 6a to the zero point of the scale mark 51a. This setting can avoid the problem of instability of the minimum gap between the grinding head 2 and the grinding ring 4 due to assembly and processing technology.

[0043] See Figure 3 This utility model also discloses a grinding device, including a grinding body 1, a grinding head 2, a drive shaft 3 for driving the grinding head 2 to rotate, a grinding ring 4 disposed in the grinding channel 1a, and a turning adjustment mechanism 5 for controlling the relative longitudinal movement between the grinding head 2 and the grinding ring 4. The turning adjustment mechanism 5 is provided with a turning adjustment ring 51 for manual turning, and the turning adjustment ring 51 is provided with a scale mark 51a for indicating the turning stroke. The turning adjustment mechanism 5 is prior art, and generally drives the grinding ring 4 or the grinding head 2 up and down through a threaded connection. For example, the inner wall of the turning adjustment ring 51 and the outer wall of the grinding body 1 are both provided with threaded portions that are threaded to each other, and the turning adjustment ring 51 is disposed on the connecting arm 52 for driving the drive shaft. The grinding body 1 and Figure 1-2 The corresponding structures shown are the same, and their structural principles will not be described in detail here.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A grinding body for a grinding device, the grinding device comprising a grinding body having a grinding channel therein, a grinding head, a drive shaft for driving the grinding head to rotate, a grinding ring disposed within the grinding channel, and a turning adjustment mechanism for controlling the relative longitudinal movement between the grinding head and the grinding ring, the turning adjustment mechanism having a turning adjustment ring for manual turning, the turning adjustment ring having scale markings for indicating the turning stroke, characterized in that, The outer wall of the grinding body is provided with a zero-adjustment auxiliary area adjacent to the screw adjustment ring, and a zero-adjustment indicator ring is sleeved on the zero-adjustment auxiliary area; The zeroing indicator ring is provided with an indicator mark for pointing to the scale mark, so that by rotating the zeroing indicator ring, the indicator mark is made to point to a preset scale mark of the scale mark; The zero-adjustment auxiliary area is provided with a friction element for contacting the zero-adjustment indicator ring to prevent the rotation of the zero-adjustment indicator ring.

2. The grinding body as described in claim 1, characterized in that, The zeroing auxiliary area is provided with a first friction groove for installing the friction element. The friction element is installed in the first friction groove to restrict the movement of the friction element.

3. The grinding body as described in claim 2, characterized in that, The friction element has a ring-shaped structure with a preset cross-sectional shape, and the friction element is sleeved on the first friction groove.

4. The grinding body as described in claim 2, characterized in that, The zeroing auxiliary area is provided with at least two of the first friction grooves, and each of the first friction grooves is provided with an elastic element.

5. The grinding body as described in claim 2, characterized in that, The friction element is made of a material capable of elastic deformation.

6. The grinding body as described in claim 1, characterized in that, The grinding channel is provided with an auxiliary frame for guiding the drive shaft to move up and down, and the auxiliary frame is provided with a bearing hole for the drive shaft to pass through; The grinding head is located at one end of the drive shaft, and the other end of the drive shaft is provided with a detachable limiting member. The limiting member is supported on the upper end of the auxiliary frame to prevent the drive shaft from completely disengaging from the bearing hole.

7. The grinding body as described in claim 6, characterized in that, The grinding channel is provided with an elastic element for maintaining the downward pressure of the grinding head, and the elastic element is sandwiched between the grinding head and the auxiliary frame.

8. The grinding body as described in claim 7, characterized in that, The drive shaft is provided with a stepped surface for limiting the maximum lifting height of the drive shaft, such that when the drive shaft is raised to the maximum height, the stepped surface abuts against the bottom surface of the auxiliary frame.

9. The grinding body as described in claim 2, characterized in that, The inner wall of the zero-adjustment indicator ring is provided with at least one second friction groove adapted to the friction element. The sum of the groove depth of the first friction groove and the groove depth of the second friction groove is less than the cross-sectional width of the friction element, so as to clamp and compress the friction element.

10. A grinding apparatus, characterized in that, The invention includes a grinding body as described in any one of claims 1-9, a grinding head, a drive shaft for driving the grinding head to rotate, a grinding ring disposed in the grinding channel, and a turning adjustment mechanism for controlling the relative longitudinal movement between the grinding head and the grinding ring. The turning adjustment mechanism is provided with a turning adjustment ring for manual turning, and the turning adjustment ring is provided with scale markings for indicating the turning stroke.

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