Magnetic stirrer

Abstract

The utility model relates to the technical field of stirrers, and discloses a magnetic stirrer which comprises a stirrer body, a temperature sensor is fixedly mounted on the stirrer body, a slot is formed in the stirrer body, a temperature sensing rod is arranged in the slot, the temperature sensor and the temperature sensing rod are both used for monitoring the heating temperature of liquid, and the temperature sensing rod is connected with a limiting mechanism. The limiting mechanism comprises an elastic band and a hook-and-loop fastener, and the elastic band and the hook-and-loop fastener are matched to fix the temperature sensing rod. According to the magnetic stirrer, the temperature sensing rod is inserted into the inserting groove, the elastic band and the hook-and-loop fastener are matched to apply inward pressure to the temperature sensing rod, so that the temperature sensing rod is fixed in the inserting groove, the stirrer body vibrates during working, the temperature sensing rod tends to move outwards under the vibration effect, and the pressure applied to the temperature sensing rod by the elastic band hinders the movement of the temperature sensing rod; the temperature sensing rod is difficult to separate from the stirrer body under the vibration effect, so that the heating temperature of liquid in a container is always monitored by the temperature sensing rod.

Description

Technical Field

[0001] The utility model relates to the technical field of stirrers, in particular to a magnetic stirrer. Background Art

[0002] A magnetic stirrer is a laboratory instrument used for liquid mixing. It is mainly used to stir or heat and stir low-viscosity liquids or solid-liquid mixtures at the same time. Its basic principle is to use the principle of magnetic field that like charges repel and opposite charges attract. The magnetic field is used to push the magnetic stirrer placed in the container to rotate in a circle, thereby achieving the purpose of stirring the liquid. With a heating rod, the sample temperature can be heated and controlled according to specific experimental requirements, maintaining the temperature conditions required by the experimental conditions, and ensuring that the liquid mixing meets the experimental requirements.

[0003] A temperature sensing rod is usually inserted into a magnetic stirrer to monitor the temperature of the liquid. However, the magnetic stirrer is prone to vibration due to its high-speed operation during operation. Under the action of vibration, the temperature sensing rod is easy to fall off the stirrer, making the preset liquid heating temperature easy to get out of control. Utility Model Content

[0004] The purpose of the utility model is to provide a magnetic stirrer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic stirrer, comprising: a stirrer body, a temperature sensor is fixedly installed on the stirrer body, a slot is provided in the stirrer body, a temperature sensing rod is arranged in the slot, the temperature sensor and the temperature sensing rod are both used to monitor the heating temperature of the liquid, the temperature sensing rod is connected to a limiting mechanism, the limiting mechanism comprises an elastic band and a Velcro, the elastic band and the Velcro are cooperated to fix the temperature sensing rod.

[0006] Preferably, a connecting wire is fixedly installed at the bottom of the temperature sensing rod.

[0007] Preferably, one end of the connecting line is fixedly mounted on the agitator body.

[0008] Preferably, the temperature sensing rod is provided with a fixing frame, and the fixing frame is provided with holes.

[0009] Preferably, the elastic band passes through a hole on the fixing frame.

[0010] Preferably, the Velcro includes a Velcro sub-stick and a Velcro mother-stick, and the Velcro mother-stick is fixedly mounted on the agitator body.

[0011] Preferably, one end of the elastic band is fixedly mounted on the agitator body, and the other end is fixedly connected to the Velcro sub-tie.

[0012] Preferably, the stirrer body is provided with a magnetic module.

[0013] Preferably, the agitator body is provided with a heating module.

[0014] Preferably, the blender body is provided with a display screen.

[0015] The magnetic stirrer has the following beneficial effects:

[0016] The magnetic stirrer inserts a temperature sensing rod into a slot, and the elastic band cooperates with the Velcro to apply an inward pressure to the temperature sensing rod, so that the temperature sensing rod is fixed in the slot. The stirrer body vibrates during operation, and the temperature sensing rod tends to move outward under the action of the vibration. The pressure applied by the elastic band to the temperature sensing rod hinders the movement of the temperature sensing rod, making it difficult for the temperature sensing rod to separate from the stirrer body under the action of the vibration, so that the heating temperature of the liquid in the container is always monitored by the temperature sensing rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A right side view of the magnetic stirrer provided in an embodiment of the present application;

[0018] Figure 2 A left side view of a magnetic stirrer provided in an embodiment of the present application;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] In the figure: 1. stirrer body; 11. switch; 12. display screen; 13. slot; 2. magnetic module; 3. heating module; 4. temperature sensing rod; 41. fixing bracket; 5. limiting mechanism; 51. connecting line; 52. elastic band; 53. Velcro sub-sticker; 54. Velcro mother sticker; 6. temperature sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 3 As shown, the utility model provides an embodiment of a magnetic stirrer, comprising: a stirrer body 1, a switch 11 is arranged on the side of the stirrer body 1, a magnetic module 2 and a heating module 3 are arranged on the stirrer body 1, and a display screen 12 is arranged on the stirrer body 1.

[0023] Specifically, the agitator body 1 is fixedly installed with a temperature sensor 6, and a slot 13 is provided in the agitator body 1. A temperature sensing rod 4 is arranged in the slot 13. Both the temperature sensor 6 and the temperature sensing rod 4 are used to monitor the heating temperature of the liquid. The temperature sensing rod 4 is provided with a fixing frame 41, and the fixing frame 41 is provided with a hole.

[0024] In this embodiment, the temperature sensor 6 and the temperature sensing rod 4 monitor the liquid temperature simultaneously, which can promptly detect a failure in the temperature sensing component and avoid abnormal liquid temperature caused by damage to one of the temperature sensing components, thereby providing protection for the temperature of the experimental liquid.

[0025] like Figure 3 As shown, the temperature sensing rod 4 is connected to the limiting mechanism 5, and the limiting mechanism 5 includes a connecting line 51. One end of the connecting line 51 is fixedly installed on the agitator body 1, and the other end is fixedly installed on the bottom of the temperature sensing rod 4. The connecting line 51 keeps the temperature sensing rod 4 and the agitator body 1 connected at all times to prevent the agitator body 1 from being lost due to the temperature sensing rod 4 being taken out of the slot 13 when not in use.

[0026] The limiting mechanism 5 further includes an elastic band 52 and a Velcro, and the elastic band 52 and the Velcro cooperate to fix the temperature sensing rod 4 .

[0027] Specifically, the Velcro includes a Velcro sub-strip 53 and a Velcro mother sticker 54. The Velcro mother sticker 54 is fixedly installed on the blender body 1. One end of the elastic band 52 is fixedly installed on the blender body 1, and the other end is fixedly connected to the Velcro sub-strip 53. The elastic band 52 passes through the hole on the fixing frame 41, so that the Velcro sub-strip 53 can be adhered to the Velcro mother sticker 54.

[0028] In this embodiment, the temperature sensing rod 4 is inserted into the slot 13, the elastic band 52 passes through the hole on the fixing frame 41, and the Velcro sub-strip 53 is pasted on the Velcro mother sticker 54. At this time, the elastic band 52 is in a tensioned state, and the elastic band 52 applies an inward pressure to the temperature sensing rod 4, so that the temperature sensing rod 4 is fixed in the slot 13. A container containing liquid is placed on the agitator body 1, and the switch 11 is turned on. The entire agitator body 1 is powered on, and the switches on the magnetic module 2 and the heating module 3 are turned on. The magnetic module 2 stirs the liquid in the container, and the heating module 3 heats the liquid. The temperature sensing rod 4 and the temperature sensor 6 monitor the temperature of the liquid. The agitator body 1 vibrates during operation, and the temperature sensing rod 4 tends to move outward under the action of vibration. The pressure applied by the elastic band 52 to the temperature sensing rod 4 hinders the movement of the temperature sensing rod 4, making it difficult for the temperature sensing rod 4 to separate from the agitator body 1 under the action of vibration, so that the heating temperature of the liquid in the container is always monitored by the temperature sensing rod 4, thereby improving the temperature accuracy of the experimental liquid.

[0029] Working principle: insert the temperature sensing rod 4 into the slot 13, the elastic band 52 passes through the hole on the fixing frame 41, and the Velcro sub-strip 53 is pasted to the Velcro mother patch 54. At this time, the elastic band 52 is in a tensioned state, and the elastic band 52 applies an inward pressure to the temperature sensing rod 4, so that the temperature sensing rod 4 is fixed in the slot 13. Place the container containing the liquid on the blender body 1, turn on the switch 11, and the entire blender body 1 is powered on. Turn on the switches on the magnetic module 2 and the heating module 3, the magnetic module 2 stirs the liquid in the container, the heating module 3 heats the liquid, and the temperature sensing rod 4 and the temperature sensor 6 monitor the temperature of the liquid.

[0030] In summary, although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic stirrer, characterized in that: include: A stirrer body (1), wherein a temperature sensor (6) is fixedly mounted on the stirrer body (1), a slot (13) is provided on the stirrer body (1), a temperature sensing rod (4) is arranged in the slot (13), and the temperature sensor (6) and the temperature sensing rod (4) are both used to monitor the heating temperature of the liquid; The temperature sensing rod (4) is connected to a limiting mechanism (5), and the limiting mechanism (5) comprises an elastic band (52) and a Velcro, and the elastic band (52) and the Velcro cooperate to fix the temperature sensing rod (4).

2. A magnetic stirrer according to claim 1, characterized in that: A connecting wire (51) is fixedly installed at the bottom of the temperature sensing rod (4).

3. A magnetic stirrer according to claim 2, characterized in that: One end of the connecting line (51) is fixedly mounted on the agitator body (1).

4. A magnetic stirrer according to claim 1, characterized in that: The temperature sensing rod (4) is provided with a fixing frame (41), and the fixing frame (41) is provided with holes.

5. A magnetic stirrer according to claim 4, characterized in that: The elastic band (52) passes through a hole on the fixing frame (41).

6. A magnetic stirrer according to claim 1, characterized in that: The Velcro comprises a Velcro sub-strip (53) and a Velcro mother-strip (54), and the Velcro mother-strip (54) is fixedly mounted on the agitator body (1).

7. A magnetic stirrer according to claim 6, characterized in that: One end of the elastic band (52) is fixedly mounted on the agitator body (1), and the other end is fixedly connected to the Velcro sub-tie (53).

8. A magnetic stirrer according to claim 1, characterized in that: The stirrer body (1) is provided with a magnetic module (2).

9. A magnetic stirrer according to claim 1, characterized in that: The stirrer body (1) is provided with a heating module (3).

10. A magnetic stirrer according to claim 1, characterized in that: The stirrer body (1) is provided with a display screen (12).

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