Grinder charging base with hidden charging port and grinder assembly

By using a concealed charging port structure in the grinder, the charging port can be automatically hidden and extended through a mechanical structure, which solves the problem of charging port contamination in electric grinders and improves the convenience and safety of use.

CN223898698UActive Publication Date: 2026-02-10ZHUHAI KELITONG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520202381.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-02-10
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

The exposed charging port of existing electric grinders leads to dust and foreign object contamination, affecting the cleanliness of the charging port and its safe use.

Method used

A hidden charging port structure was designed, which utilizes the gravity of the grinder and the mechanical structure to achieve automatic hiding and extending of the charging port. Through the coordinated action of the ejector pin, drive plate and return spring, the charging port is ensured to automatically retract when not in use and automatically extend when in use.

Benefits of technology

This effectively prevents the charging port from being contaminated by dust and foreign objects, improving ease of use and safety while maintaining the product's aesthetic appeal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The grinder charging base with the hidden charging port comprises an upper base body, a lower base body and a driving plate, the bottom of the upper base body is detachably connected with the lower base body, the upper base body is provided with a plurality of containing cavities capable of containing grinders, the side walls of the containing cavities are provided with matching ports, and the matching ports are matched with the upper base body and the lower base body. The driving plate is movably connected between the upper seat body and the lower seat body, the driving plate is of an L-shaped lever structure, one end of the driving plate is matched with the grinder, the other end of the driving plate is fixedly connected with a charging port, and the charging port corresponds to the matching port; and after the grinder is placed in the accommodating cavity, one end of the driving plate is pressed downwards, so that the charging port extends out of the matching port. The charging port can be automatically hidden, the charging port is effectively prevented from being polluted, the overall structural design is reasonable, use is convenient, and practicability is high.
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Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to a grinding charging base and grinding assembly with a hidden charging port. Background Technology

[0002] A grinder is a device used to grind various ingredients and materials, facilitating subsequent processing. Due to the low efficiency of manual grinders, electric grinders have emerged on the market. Currently, the charging port of existing electric grinders is directly exposed, leading to dust and other foreign matter inside the grinder contaminating or soiling the charging port during use, thus causing contamination. Utility Model Content

[0003] The purpose of this invention is to provide a grinder charging base and grinder assembly with a hidden charging port, thereby solving the aforementioned problems in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a grinder charging base with a concealed charging port, comprising an upper body, a lower body, and a drive plate. The bottom of the upper body is detachably connected to the lower body. The upper body has several accommodating cavities for placing grinders, and the side walls of the accommodating cavities have mating openings. The drive plate is movably connected between the upper body and the lower body, and the drive plate adopts an L-shaped lever structure. One end of the drive plate is adapted to the grinder, and the other end is fixedly connected to a charging port. The charging port is correspondingly arranged with the mating opening. After the grinder is placed in the accommodating cavity, one end of the drive plate is pressed down, causing the charging port to extend out of the mating opening.

[0006] Furthermore, it also includes a return spring, which is connected between the drive plate and the inner wall of the upper seat.

[0007] Furthermore, the bottom wall of the receiving cavity is provided with a through hole, and a pin is movably disposed in the through hole. The pin is respectively disposed corresponding to one end of the grinder and one end of the drive plate. After the grinder is placed into the receiving cavity, it can drive the pin to move downward in the through hole and press down one end of the drive plate.

[0008] Furthermore, the bottom of the receiving cavity is provided with a positioning seat and a mounting seat. The mounting seat is located inside the positioning seat, and the through hole is opened in the middle of the mounting seat. An elastically deformable arc-shaped protrusion is fixedly connected to the mounting seat, and the ejector pin is supported and connected to the bottom of the arc-shaped protrusion.

[0009] Furthermore, the arc-shaped protrusion is made of soft rubber.

[0010] Furthermore, the drive plate includes an upper connecting plate, a lower connecting plate, and a rotating shaft. The upper connecting plate is fixedly connected to the lower connecting plate, and the rotating shaft is symmetrically arranged at the connection between the upper connecting plate and the lower connecting plate. Fixed seats are symmetrically arranged on the lower base, and the rotating shaft is rotatably connected to the corresponding fixed seats.

[0011] Furthermore, a connecting spring is connected between the outer end of the lower connecting plate and the bottom wall of the lower seat.

[0012] Furthermore, a charging base is provided on one side of the grinder, a charging contact is installed inside the charging base, and a power supply contact is installed inside the charging port, with the power supply contact corresponding to the charging contact.

[0013] This utility model also provides a grinder assembly, which adopts the aforementioned grinder charging base with a hidden charging port, and further includes a grinder. A charging base is provided on one side of the grinder, and charging contacts are installed inside the charging base. A support base is provided at the bottom of the grinder. The support base is fixedly connected to the inner wall of the grinder by several support rods. A through hole is opened in the middle of the support base, and a rotating shaft is connected in the through hole. The rotating shaft is correspondingly arranged with one end of the drive plate.

[0014] Furthermore, the support rod is provided in three parts.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] The present invention relates to a grinder charging base and grinder assembly with a hidden charging port. By setting a hidden charging port, the charging port can automatically retract and hide when the grinder is taken out. When the grinder is loaded, the charging port can be pressed out for charging by the weight of the grinder itself. The automatic hiding of the charging port is achieved by cleverly using a mechanical structure, which can effectively prevent the charging port from being contaminated. Its overall structure is reasonably designed, easy to use, and highly practical. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the grinder charging base with a hidden charging port according to Embodiment 1 of this utility model.

[0019] Figure 2 This is an exploded view of the grinder charging base with a hidden charging port according to Embodiment 1 of this utility model.

[0020] Figure 3 This is a cross-sectional structural diagram of the grinder charging base with a hidden charging port in Embodiment 1 of this utility model when the grinder is placed in.

[0021] Figure 4 This is a schematic cross-sectional view of the grinding machine charging base with a hidden charging port in Embodiment 1 of this utility model during grinding machine charging.

[0022] Figure 5 This is a comparative structural diagram of the drive board in the working and non-working states of the grinder charging base with a hidden charging port in Embodiment 1 of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the drive plate in the grinder charging base with a hidden charging port of Embodiment 1 of this utility model at one angle.

[0024] Figure 7 This is a three-dimensional structural diagram of the drive plate in the grinder charging base with a hidden charging port according to Embodiment 1 of this utility model from another angle.

[0025] Figure 8 This is a three-dimensional structural diagram of the grinder assembly according to Embodiment 2 of the present invention;

[0026] Figure 9 This is a schematic diagram of the main structure of the grinder assembly according to Embodiment 2 of this utility model;

[0027] Figure 10 This is a three-dimensional structural diagram of the grinder assembly in Embodiment 2 of the present invention, showing one angle of the grinder.

[0028] Figure 11 This is a three-dimensional structural diagram of the grinder in the grinder assembly of Embodiment 2 of this utility model from another angle;

[0029] Figure 12 This is a three-dimensional structural diagram of the bottom of the grinder in the grinder assembly of Embodiment 2 of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Charging base; 11. Upper body; 111. Receiving cavity; 112. Mating port; 113. Positioning seat; 114. Mounting seat; 115. Through hole; 12. Lower body; 13. Arc-shaped protrusion; 14. Ejector pin; 15. Fixing seat; 16. Limiting seat; 17. Limiting hole; 2. Grinding tool; 21. Charging contact; 22. Support seat; 23. Support rod; 24. Rotating shaft; 3. Drive plate; 31. Upper connecting plate; 32. Lower connecting plate; 33. Rotating shaft; 34. Cavity; 341. Spring connecting seat; 35. Mating seat; 36. Mating hole; 4. Return spring; 5. Charging port; 51. Power supply contact. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the terms "length," "width," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Example 1

[0035] like Figures 1 to 7As shown, the grinder charging base 1 with a concealed charging port in this embodiment 1 includes an upper body 11, a lower body 12, and a drive plate 3. The bottom of the upper body 11 is detachably connected to the lower body 12. Specifically, the upper body 11 and the lower body 12 can be connected by bolts, snap-fit ​​connections, or plug-in connections, facilitating maintenance and component replacement. Furthermore, the upper body 11 has several receiving cavities 111 for placing grinders 2. These cavities 111 can be used to fix and support the grinders 2. By providing several receiving cavities 111, different sizes or quantities of grinders 2 can be accommodated. Optionally, such as... Figure 1 , Figure 2 As shown, the upper body 11 can be symmetrically provided with two receiving cavities 111.

[0036] In this embodiment 1, the side wall of the receiving cavity 111 is provided with a mating opening 112, and the drive plate 3 is movably connected between the upper seat 11 and the lower seat 12, and as shown... Figure 5 As shown, the drive plate 3 adopts an L-shaped lever structure. One end of the drive plate 3 is adapted to the grinder 2, and the other end is fixedly connected to the charging port 5. The charging port 5 is correspondingly set with the mating port 112. After the grinder 2 is placed into the receiving cavity 111, one end of the drive plate 3 is pressed down, so that the charging port 5 extends out of the mating port 112.

[0037] Specifically, it also includes a return spring 4, which is connected between the drive plate 3 and the inner wall of the upper body 11. The return spring 4 ensures that the drive plate 3 can return to its initial position after the grinder 2 is removed, so as to realize the automatic retraction and hiding of the charging port 5.

[0038] In this embodiment 1, the bottom wall of the receiving cavity 111 is provided with a through hole 115, and a push pin 14 is movably arranged in the through hole 115. The push pin 14 is respectively arranged corresponding to one end of the grinder 2 and the drive plate 3. After the grinder 2 is put into the receiving cavity 111, it can drive the push pin 14 to move downward in the through hole 115 and press down one end of the drive plate 3.

[0039] Meanwhile, a mating opening 112 is provided on the side wall of the receiving cavity 111, and a positioning seat 113 and a mounting seat 114 are provided at the bottom. The mounting seat 114 is located inside the positioning seat 113 and is opened in the middle of the mounting seat 114 through a hole 115. An elastically deformable arc-shaped protrusion 13 is fixedly connected to the mounting seat 114. At this time, the positioning seat 113 surrounds the arc-shaped protrusion 13, which not only protects the arc-shaped protrusion 13, but also guides the bottom of the grinder 2 during placement. Preferably, the arc-shaped protrusion 13 is made of soft rubber. Furthermore, a pin 14 is connected to the bottom of the arc-shaped protrusion 13. The pin 14 passes through the hole 115 and extends downward, so that the pin 14 can interact with the bottom of the grinder 2.

[0040] In this embodiment 1, the drive plate 3 is movably connected between the upper seat 11 and the lower seat 12. A charging port 5 is fixedly connected to the upper part of the drive plate 3 facing the mating port 112. A power supply contact 51 is installed in the charging port 5. The charging port 5 is correspondingly arranged with the mating port 112. A charging base is provided on one side of the grinder 2. A charging contact 21 is installed in the charging base. The power supply contact 51 is correspondingly arranged with the charging contact 21. When the grinder 2 is placed in the receiving cavity 111, the charging contact 21 in its charging base will contact the power supply contact 51 to establish a charging connection. At this time, the bottom of the grinder 2 is correspondingly arranged with the ejector pin 14. The grinder 2 can drive the drive plate 3 to rotate through the arc protrusion 13 and the ejector pin 14 so that the charging port 5 extends out of the mating port 112.

[0041] At this time, through the coordinated action of the ejector pin 14, the drive plate 3 and the return spring 4, the automatic extension and retraction function of the charging port 5 is realized, which not only improves the convenience of use, but also increases the aesthetics and safety of the product.

[0042] Among them, such as Figure 6 , Figure 7 As shown, the drive plate 3 includes an upper connecting plate 31, a lower connecting plate 32, and a rotating shaft 33. The upper connecting plate 31 and the lower connecting plate 32 are fixedly connected. At this time, the rotating shaft 33 is symmetrically arranged at the connection between the upper connecting plate 31 and the lower connecting plate 32, so that the upper connecting plate 31 and the lower connecting plate 32 can rotate around the rotating shaft 33. Correspondingly, fixed seats 15 are symmetrically arranged on the lower seat 12, and the rotating shaft 33 can be rotatably connected to the corresponding fixed seats 15, thereby realizing the movable connection between the drive plate 3 and the lower seat 12.

[0043] Preferably, a recessed cavity 34 is provided in the middle of the upper connecting plate 31 facing the receiving cavity 111. A spring connecting seat 341 is provided in the recessed cavity 34. The return spring 4 is sleeved on the spring connecting seat 341 and one end is connected to the bottom wall of the recessed cavity 34, and the other end is connected to the inner wall of the upper seat 11. A mating seat 35 is provided on the lower connecting plate 32. A mating hole 36 is provided in the middle of the mating seat 35. The mating seat 35 is correspondingly provided with the bottom end of the ejector pin 14, and the bottom end of the ejector pin 14 can extend into the mating hole 36.

[0044] Furthermore, a limiting seat 16 is fixedly connected to the lower seat 12, and a limiting hole 17 is opened in the limiting seat 16. The mating seat 35 is correspondingly set with the limiting hole 17 and can extend into the limiting hole 17. That is, when the lower connecting plate 32 rotates to a certain angle, the mating seat 35 will extend into the limiting hole 17, thereby limiting the further rotation of the lower connecting plate 32. This setting can effectively limit the rotation position of the drive plate 3, ensuring that the drive plate 3 can stay stably when it rotates to a specific position. This helps to ensure that the charging port 5 can maintain a stable position when it is extended, which is convenient for docking with the charging seat of the grinder 2.

[0045] To better achieve the return of the drive plate 3 to its original position, a connecting spring is connected between the outer end of the lower connecting plate 32 and the bottom wall of the lower seat 12. The function of the connecting spring is to help the drive plate 3 return to its initial position, that is, the charging port 5 is hidden. When the grinder 2 is removed and the ejector pin 14 no longer applies pressure to the mating seat 35, the elastic force of the connecting spring will start to act, pushing the lower connecting plate 32 and the entire drive plate 3 to rotate in the opposite direction around the rotating shaft 33. At this time, the connecting spring can work together with the return spring 4 to ensure that the drive plate 3 can return to its initial position smoothly and quickly.

[0046] In this embodiment 1, the grinder charging base 1 with a hidden charging port, when in use, if the grinder 2 needs charging, such as Figure 3 As shown, the grinder 2 is placed into the corresponding receiving cavity 111. The rotating shaft 24 of the grinder 2 or other bottom structures of the grinder 2 come into contact with the arc-shaped protrusion 13. As the grinder 2 continues to be lowered, the arc-shaped protrusion 13 undergoes elastic deformation and pushes the ejector pin 14 downward. Since the ejector pin 14 is correspondingly set with the mating hole 36 in the mating seat 35, and the bottom end of the ejector pin 14 can extend into the mating hole 36, the downward movement of the ejector pin 14 will drive the mating seat 35 and the entire drive plate 3 to rotate around the rotating shaft 33. Figure 4 As shown, as the drive plate 3 rotates, the charging port 5 gradually extends from the mating port 112, allowing the power supply contact 51 to contact the charging contact 21 of the grinder 2, thereby charging the grinder 2. The rotating shaft 24 of the grinder 2 or other bottom structures of the grinder 2 touch the arc-shaped protrusion 13, which also serves as a seal, preventing powdery materials from the grinder 2 from leaking into the charging base 1 and causing residue.

[0047] When the grinder 2 is removed, the return spring 4 acts on the spring connecting seat 341, thereby causing the drive plate 3 to rotate in the opposite direction around the rotating shaft 33, causing the charging port 5 to automatically retract and hide inside the mating port 112. Figure 3 As shown.

[0048] Example 2

[0049] like Figures 8 to 12 As shown, the grinder assembly in this embodiment 2 uses the grinder charging base 1 with a hidden charging port, and also includes a grinder 2, as described above. Figures 10 to 12 As shown, a charging base is provided on one side of the grinder 2, and a charging contact 21 is installed inside the charging base. A support base 22 is provided at the bottom inside the grinder 2. The support base 22 is fixedly connected to the inner wall of the grinder 2 by several support rods 23. A through hole is opened in the middle of the support base 22, and a rotating shaft 24 is connected in the through hole. The rotating shaft 24 is correspondingly set at one end of the drive plate 3.

[0050] Preferably, three support rods 23 are provided, and the support base 22 is fixedly connected to the inner wall of the grinder 2 by the three support rods 23, forming a stable triangular support structure, which can improve the stability of the grinder 2 during operation.

[0051] like Figure 8 , Figure 9 As shown, in the use of the grinder assembly in this embodiment 2, when the grinder 2 needs to be charged, the bottom of the grinder 2 is placed in the receiving cavity 111, so that the rotating shaft 24 of the grinder 2 contacts the arc-shaped protrusion 13. As the grinder 2 continues to move downward, it drives the rotating shaft 24 to abut against the arc-shaped protrusion 13 and causes the arc-shaped protrusion 13 to undergo elastic deformation. The arc-shaped protrusion 13 pushes the ejector pin 14 to move downward. At this time, the downward movement of the ejector pin 14 will drive the mating seat 35 and the entire drive plate 3 to rotate around the rotating shaft 33 until the charging port 5 extends out from the mating port 112, so that the power supply contact 51 can contact the charging contact 21 of the grinder 2 to realize the charging of the grinder 2. When the grinder 2 is removed, the elastic force of the return spring 4 will act on the spring connecting seat 341, thereby driving the drive plate 3 to rotate in the opposite direction around the rotating shaft 33 until the drive plate 3 rotates to the initial position, so that the charging port 5 automatically retracts and hides in the mating port 112 again.

[0052] The present invention relates to a grinder charging base and grinder assembly with a hidden charging port. By setting a hidden charging port, the charging port can automatically retract and hide when the grinder is taken out. When the grinder is loaded, the charging port can be pressed out for charging by the weight of the grinder itself. The automatic hiding of the charging port is achieved by cleverly using a mechanical structure. Moreover, the overall structure is reasonably designed, easy to use, and highly practical.

[0053] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A grinder charging base with a concealed charging port, characterized in that, The device includes an upper seat (11), a lower seat (12), and a drive plate (3). The bottom of the upper seat (11) is detachably connected to the lower seat (12). The upper seat (11) has several accommodating cavities (111) for placing the grinder (2). The side wall of the accommodating cavity (111) has a mating port (112). The drive plate (3) is movably connected between the upper seat (11) and the lower seat (12). The drive plate (3) adopts an L-shaped lever structure. One end of the drive plate (3) is adapted to the grinder (2), and the other end is fixedly connected to a charging port (5). The charging port (5) is correspondingly set with the mating port (112). After the grinder (2) is placed into the accommodating cavity (111), one end of the drive plate (3) is pressed down, so that the charging port (5) extends out of the mating port (112).

2. A grinder charging base with a concealed charging port according to claim 1, characterized in that, It also includes a return spring (4), which is connected between the drive plate (3) and the inner wall of the upper seat (11).

3. A grinder charging base with a concealed charging port according to claim 1, characterized in that, The bottom wall of the receiving cavity (111) is provided with a through hole (115). A push pin (14) is movably disposed in the through hole (115). The push pin (14) is respectively disposed corresponding to one end of the grinder (2) and the drive plate (3). After the grinder (2) is placed into the receiving cavity (111), it can drive the push pin (14) to move downward in the through hole (115) and press down one end of the drive plate (3).

4. A grinder charging base with a concealed charging port according to claim 3, characterized in that, The bottom of the receiving cavity (111) is provided with a positioning seat (113) and a mounting seat (114). The mounting seat (114) is located inside the positioning seat (113). The through hole (115) is opened in the middle of the mounting seat (114). An elastically deformable arc-shaped protrusion (13) is fixedly connected to the mounting seat (114). The ejector pin (14) is supported and connected to the bottom of the arc-shaped protrusion (13).

5. A grinder charging base with a concealed charging port according to claim 4, characterized in that, The arc-shaped protrusion (13) is made of soft rubber.

6. A grinder charging base with a concealed charging port according to claim 1, characterized in that, The drive plate (3) includes an upper connecting plate (31), a lower connecting plate (32), and a rotating shaft (33). The upper connecting plate (31) is fixedly connected to the lower connecting plate (32). The rotating shaft (33) is symmetrically arranged at the connection between the upper connecting plate (31) and the lower connecting plate (32). Fixed seats (15) are symmetrically arranged on the lower seat (12). The rotating shaft (33) is rotatably connected to the corresponding fixed seat (15).

7. A grinder charging base with a concealed charging port according to claim 6, characterized in that, A connecting spring is connected between the outer end of the lower connecting plate (32) and the bottom wall of the lower seat (12).

8. A grinder charging base with a concealed charging port according to any one of claims 1-7, characterized in that, A charging base is provided on one side of the grinder (2), and a charging contact (21) is installed in the charging base. A power supply contact (51) is installed in the charging port (5), and the power supply contact (51) is correspondingly arranged with the charging contact (21).

9. A grinding assembly, characterized in that, The grinding machine charging base with a hidden charging port according to any one of claims 1-8 further includes a grinding machine (2), a charging base is provided on one side of the grinding machine (2), a charging contact (21) is installed in the charging base, a support base (22) is provided at the bottom of the grinding machine (2), the support base (22) is fixedly connected to the inner wall of the grinding machine (2) by a plurality of support rods (23), a through hole is provided in the middle of the support base (22), a rotating shaft (24) is fitted and connected in the through hole, and the rotating shaft (24) is correspondingly provided to one end of the drive plate (3).

10. A grinder assembly according to claim 9, characterized in that, The support rod (23) is provided in three parts.