Electric stirring cup

Abstract

The utility model discloses an electric stirring cup which comprises a cup body, a cup base connected with the bottom of the cup body, a magnetic rod, a magnetic driver arranged on the cup base and a motor used for driving the magnetic driver to rotate, the cup body comprises an inner container and an outer container arranged on the peripheral side of the inner container, a base is arranged at an opening in the bottom of the outer container, and the magnetic rod is arranged on the base. The base, the inner container and the outer container form a vacuum cavity, a mounting cavity is formed in the bottom of the base, a magnetic field shielding connecting piece used for shielding a magnetic field generated by the magnetic driver is mounted in the mounting cavity, and the cup base is connected with the base through the magnetic field shielding connecting piece. A magnetic field penetrating hole is formed in the axis of the magnetic field shielding connecting piece. The utility model has the characteristics that the driving force of the magnetic driver can be concentrated to drive the magnetic rod, so that the position is more stable when the magnetic rod stably rotates, the stirring effect of the magnetic rod is improved, the position deviation when the magnetic rod rotates is avoided, the noise is reduced and the like.

Description

Technical Field

[0001] The utility model belongs to a stirring cup, and particularly relates to an electric stirring cup. Background Art

[0002] The structures of the existing disclosed stirring cups, magnetic stirring cups, and magnetized cups are too complex, and the excessive number of components involved results in low product assembly efficiency. In a Chinese patent application with the publication number CN110403493A, an electric stirring cup is disclosed. The cup body is provided with an inner liner, the lower end of the cup body is open, the motor is placed in a concave cavity in the middle of the driving device and is in butt joint and cooperation with a magnetic drive to form a driving device. The driving device passes through the lower opening of the cup body and is in interference fit with the inner wall of the lower opening of the cup body. The magnetic drive keeps a gap with the outer bottom surface of the inner liner of the cup body, and a magnetic bar is placed on the bottom surface of the inner liner of the cup body and is fixed to the magnetic drive by magnetic field attraction. However, it also has the following deficiencies:

[0003] 1. When stirring, the noise is relatively large and the working efficiency is not high;

[0004] 2. Its heat preservation effect is not ideal, especially after long-term use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electric stirring cup, which solves the problems existing in the prior art, has good stirring effect, low stirring noise, and good heat preservation effect.

[0006] The above technical purpose of the utility model is mainly solved by the following technical solution: An electric stirring cup, comprising a cup body, a cup base connected to the bottom of the cup body, a magnetic bar, a magnetic drive arranged on the cup base, and a motor for driving the magnetic drive to rotate. The cup body includes an inner liner and an outer liner arranged on the periphery of the inner liner. A base is provided at the opening at the bottom of the outer liner. The base, the inner liner, and the outer liner form a vacuum cavity. An installation cavity is provided at the bottom of the base. A magnetic field shielding connecting piece for shielding the magnetic field generated by the magnetic drive is installed in the installation cavity. The cup base is connected to the base through the magnetic field shielding connecting piece. A magnetic field passing hole is provided at the axis of the magnetic field shielding connecting piece. The magnetic field attraction generated by the magnetic drive can pass through the magnetic field passing hole and cooperate with the magnetic bar. Driven by the motor, the magnetic drive can drive the magnetic bar to rotate through magnetic field attraction.

[0007] As a further preferred technical solution of the utility model; a part of the top surface of the installation cavity is recessed towards the inner liner to form a recess cavity, which is coaxially arranged with the magnetic field passing hole. The top of the cup base is provided with an annular cavity for accommodating the magnetic drive. The annular cavity passes through the magnetic field passing hole and enters the recess cavity.

[0008] As a further preferred technical solution of the present utility model; there is a gap of 1.5 - 1.7 mm between the top surface of the concave cavity and the inner container.

[0009] As a further preferred technical solution of the present utility model; the magnetic field shielding connecting member is screwed and fixed to the cup holder.

[0010] As a further preferred technical solution of the present utility model; the magnetic field shielding connecting member is made of plastic or copper.

[0011] As a further preferred technical solution of the present utility model; the magnetic field passing hole is a circular hole or a rectangular hole.

[0012] As a further preferred technical solution of the present utility model; the magnetic field shielding connecting member includes an annular connecting portion that respectively abuts against the side wall of the base and the side wall of the cup holder. The bottom of the annular connecting portion is provided with an outwardly bent convex portion that abuts against the bottom end of the outer container. The side wall of the base is inclined towards the annular connecting portion, and the mating wall of the annular connecting portion that abuts against the inclined side wall of the base.

[0013] As a further preferred technical solution of the present utility model; the side wall of the base is provided with an annular protrusion, and the annular connecting portion is provided with an annular groove that mates with the annular protrusion.

[0014] As a further preferred technical solution of the present utility model; the connection portion of the annular connecting portion to the cup holder is provided with an internal thread, the side wall of the cup holder is provided with an external thread that mates with the internal thread, and the side wall of the cup holder is further provided with an annular support portion that abuts against the convex portion.

[0015] As a further preferred technical solution of the present utility model; a placement groove that mates with the magnetic force rod is provided at the top of the cup holder corresponding to the adjacent side of the annular cavity.

[0016] Therefore, the present utility model has the characteristics of being able to concentrate the driving force of the magnetic drive to drive the magnetic force rod, making the position of the magnetic force rod more stable when rotating stably, improving the stirring effect of the magnetic force rod, avoiding the position deviation of the magnetic force rod during rotation, and reducing noise. Description of the Drawings

[0017] Figure 1 is the three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is Figure 1 the structural sectional view of the cup body in

[0019] Figure 3 is Figure 2 the enlarged structural view of part A in

[0020] Figure 4 is Figure 1Stereoscopic structure diagram of the cup holder in

[0021] Figure 5 is Figure 4 structural sectional view of. Specific implementation manner

[0022] The technical solution of the present utility model will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0023] As Figures 1-5 shown, an electric stirring cup includes a cup body 1, a cup holder 2 connected to the bottom of the cup body 1, a magnetic bar 3, a magnetic drive 21 provided on the cup holder 2, and a motor 26 for driving the magnetic drive 21 to rotate. The cup body 1 includes an inner liner 11 and an outer liner 12 provided on the periphery of the inner liner 11. There is a base 13 at the bottom opening of the outer liner 12. The base 13, the inner liner 11, and the outer liner 12 form a vacuum chamber 121. There is an installation cavity 133 at the bottom of the base 13. A magnetic field shielding connecting member 4 for shielding the magnetic field generated by the magnetic drive 21 is installed in the installation cavity 133. The cup holder 2 is connected to the base 13 through the magnetic field shielding connecting member 4. There is a magnetic field passing hole 41 at the axis of the magnetic field shielding connecting member 4. The magnetic field attraction generated by the magnetic drive 21 can pass through the magnetic field passing hole 41 and cooperate with the magnetic bar 3. Driven by the motor, the magnetic drive can drive the magnetic bar to rotate through magnetic field attraction. A recessed cavity 131 is formed by the top surface part of the installation cavity 133 denting towards the inner liner 11, which is coaxially arranged with the magnetic field passing hole 41. There is an annular cavity 22 for accommodating the magnetic drive 21 at the top of the cup holder 2. The annular cavity 22 passes through the magnetic field passing hole 41 and enters the recessed cavity 131. There is a 1.6 mm gap between the top surface of the recessed cavity and the inner liner 11. A placement groove 25 for cooperating with the magnetic bar 3 is provided at the top of the cup holder 2 corresponding to the adjacent side of the annular cavity 22; the above-mentioned body forms a vacuum chamber with a double-layer vacuum insulation structure through the combination of the inner liner and the outer liner. When packaging or not in use, the magnetic bar can be placed in the placement groove for easy storage of the magnetic bar to avoid loss of the magnetic bar due to its small volume. The above-mentioned magnetic drive and magnetic bar are both existing products on the current market and are prior art, so they will not be elaborated here.

[0024] In order to have both heat preservation functions, some existing stirring cups are usually set as a double-layer vacuum structure composed of an inner liner and an outer liner, and the inner liner and the outer liner are usually made of metal materials. The magnetic drive on the cup holder drives the magnetic bar through a magnetic field. The metal inner liner and outer liner are prone to interfering with the magnetic field of the magnetic drive, affecting the stable drive of the magnetic bar. Moreover, the magnetic field of the magnetic drive cannot stably drive the magnetic bar, making the position of the magnetic bar prone to shift, so that the magnetic bar cannot rotate normally, reducing the driving force on the magnetic bar, greatly reducing the stirring effect of the magnetic bar, and easily increasing noise

[0025] The above-mentioned magnetic field shielding connector and the base are made of plastic in this embodiment, and other materials with low cost and the same function can also be used. The base is connected to the bottom of the outer container by welding. The concave cavity is formed at the central axis of the base and approaches the bottom of the inner container. A gap is formed between the end face of the concave cavity and the bottom surface of the inner container. The annular cavity at the top of the cup holder protrudes upward. The magnetic drive is located in the annular cavity and connected to the inside of the cup holder. During assembly, the magnetic drive enters the depression formed by the magnetic field through hole into the concave cavity, so that the magnetic drive is as close as possible to the bottom of the inner container, and the magnetic field shielding interference between the magnetic drive and the magnetic rod is avoided, thereby reducing the driving force. Thus, the rotational driving force on the magnetic rod located in the inner container can be ensured to the greatest extent, and the stirring effect of the magnetic rod can be enhanced. The magnetic field shielding connector can isolate the magnetic field influence between the base and the outer container and the magnetic drive and the cup holder, so that the driving force of the magnetic drive can drive the magnetic rod more concentratedly, and the magnetic rod can be controlled by the magnetic drive to always remain at the center of the bottom of the inner container, ensuring that the magnetic rod can stir more stably and fully.

[0026] As Figures 2-4 shown, the magnetic field shielding connector 4 and the cup holder 2 are screwed and fixed. In this embodiment, the magnetic field shielding connector 4 is made of plastic, and the magnetic field through hole 41 is a circular hole. The magnetic field shielding connector 4 includes an annular connecting portion 42 that abuts against the side walls of the base 13 and the cup holder 2 respectively. The bottom of the annular connecting portion 42 is provided with an outwardly bent outer convex portion 421 that abuts against the bottom end of the outer container 11. The side wall of the base 13 is inclined towards the annular connecting portion 42. The mating wall 422 of the annular connecting portion 42 that abuts against the inclined side wall of the base 13. An annular protrusion 132 is provided on the side wall of the installation cavity 133 of the base 13. An annular groove 423 that mates with the annular protrusion 132 is provided on the annular connecting portion 42. An internal thread 424 is provided at the connection of the annular connecting portion 42 and the cup holder 2. An external thread 23 that mates with the internal thread 424 is provided on the side wall of the cup holder 2. An annular support portion 24 that abuts against the outer convex portion 421 is also provided on the side wall of the cup holder 2.

[0027] The annular connecting portion of the above magnetic field shielding connecting member is an annular wall that cooperates with the side wall of the base. The side wall of the base is inclined. When the magnetic field shielding connecting member is connected to the base, the side wall of the base can form a radial extrusion on the side wall of the magnetic field shielding connecting member, radially limit and fix the magnetic field shielding connecting member, and strengthen the clamping strength of the annular protrusion on the side wall of the base in the annular groove of the annular connecting portion, and axially limit and fix the magnetic field shielding connecting member, effectively strengthening the connection stability between the magnetic field shielding connecting member and the base. The above-mentioned convex portion abuts against the bottom end of the outer cylinder, further increasing the isolation effect and reducing the wear of the metal outer cylinder on the base; during assembly, the cup holder is connected to the magnetic field shielding connecting member by the external thread on the side wall and the internal thread on the inner wall of the magnetic field shielding connecting member, which is convenient for assembly, convenient for storing the magnetic rod and charging the base. At the same time, the magnetic field shielding connecting member is threadedly connected to the base, and the magnetic field shielding connecting member and the cup body are supported by the annular support portion, which can effectively reduce the wear when the cup holder is directly connected to the cup body and increase the connection tightness.

[0028] The above embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. An electric stirring cup, comprising a cup body (1), a cup base (2) connected to the bottom of the cup body (1), a magnetic bar (3), a magnetic drive (21) provided on the cup base (2), and a motor (26) for driving the magnetic drive (21) to rotate. The cup body (1) includes an inner liner (11) and an outer liner (12) provided on the peripheral side of the inner liner (11), and is characterized in that: A base (13) is provided at the opening at the bottom of the outer container (12). A vacuum chamber (121) is formed by the base (13), the inner container (11) and the outer container (12). An installation chamber (133) is provided at the bottom of the base (13). A magnetic field shielding connecting member (4) for shielding the magnetic field generated by the magnetic drive (21) is installed in the installation chamber (133). The cup holder (2) is connected to the base (13) through the magnetic field shielding connecting member (4). A magnetic field passing hole (41) is provided at the axis of the magnetic field shielding connecting member (4). The magnetic field attraction generated by the magnetic drive (21) can pass through the magnetic field passing hole (41) and cooperate with the magnetic rod (3). Driven by the motor, the magnetic drive can drive the magnetic rod () to rotate through magnetic field attraction.

2. The electric stirring cup according to claim 1, wherein: A recessed chamber (131) is formed by the top surface part of the installation chamber (133) recessing towards the inner container (11), which is coaxially arranged with the magnetic field passing hole (41). An annular chamber (22) for accommodating the magnetic drive (21) is provided at the top of the cup holder (2). The annular chamber (22) passes through the magnetic field passing hole (41) and enters the recessed chamber (131).

3. The electric stirring cup according to claim 2, wherein: There is a gap of 1.5 - 1.7 mm between the top surface of the recessed chamber (131) and the inner container (11).

4. The electric stirring cup according to claim 1, wherein: The magnetic field shielding connecting member (4) and the cup holder (2) are fixedly connected by screwing.

5. The electric stirring cup according to claim 1, wherein: The magnetic field shielding connecting member (4) is made of plastic or copper.

6. The electric stirring cup according to claim 1, wherein: The magnetic field passing hole (41) is a circular hole or a rectangular hole.

7. The electric stirring cup according to claim 1, wherein: The magnetic field shielding connecting member (4) includes an annular connecting part (42) that abuts against the side walls of the base (13) and the cup holder (2) respectively. An outward convex part (421) that bends outward and abuts against the bottom end of the outer container (12) is provided at the bottom of the annular connecting part (42). The side wall of the base (13) is inclined towards the annular connecting part (42). A mating wall (422) that abuts against the inclined side wall of the base (13) is provided on the annular connecting part (42).

8. The electric stirring cup according to claim 7, characterized in that: An annular protrusion (132) is provided on the side wall of the base (13). An annular groove (423) that cooperates with the annular protrusion (132) is provided on the annular connecting part (42).

9. The electric stirring cup according to claim 7, wherein: An internal thread (424) is provided at the connection of the annular connecting part (42) and the cup holder (2). An external thread (23) that cooperates with the internal thread (424) is provided on the side wall of the cup holder (2). An annular support part (24) that abuts against the outward convex part (421) is also provided on the side wall of the cup holder (2).

10. The electric stirring cup according to claim 2, wherein: A placement groove (25) that cooperates with the magnetic rod (3) is provided at the top of the cup holder (2) corresponding to the adjacent side of the annular chamber (22).

Images