Heating magnetic stirrer with self-adjusting temperature measuring probe

Abstract

The utility model relates to the technical field of general physical or chemical methods or devices, in particular to a heating magnetic stirrer with a self-adjusting temperature measuring probe, which comprises a magnetic working base and a bearing assembly arranged on the magnetic working base, two temperature measuring stirrers are arranged in the bearing assembly and are connected in series, and the two temperature measuring stirrers are connected in parallel. The temperature measuring stirrer comprises a limiting shaft, limiting plates and stirring temperature measuring blades, the two limiting plates are connected to the two ends of the limiting shaft respectively, the multiple stirring temperature measuring blades are connected between the two limiting plates, and the multiple temperature measuring needles are movably connected to the stirring temperature measuring blades. By arranging the limiting shaft, the limiting plate, the stirring temperature measuring blade and the temperature measuring needle, the temperature of different stirring degrees and different liquid levels can be measured at the same time, and the problem that in the prior art, the temperature measuring accuracy error is large due to a single measuring point is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of general physical or chemical methods or devices, and in particular to a heating magnetic stirrer with a self-regulating temperature measuring probe. Background Art

[0002] A magnetic stirrer is a laboratory instrument for liquid mixing, mainly used for stirring or simultaneously heating and stirring low-viscosity liquids or solid-liquid mixtures. The basic principle is to use the principle of like repels and opposites attract in the magnetic field, and use the magnetic field to push the magnetic stirrer placed in the container to rotate in a circle, so as to achieve the purpose of stirring the liquid. In conjunction with the heating temperature control system, the sample temperature can be heated and controlled according to specific requirements, and the temperature conditions required for the mixing conditions can be maintained to ensure that the liquid mixing meets the requirements. The patent name that has been disclosed is a Chinese patent with application number 202020128548.5, a constant temperature heating magnetic stirrer. Although the patent structure can realize the temperature measurement of different liquid levels, during the detection process, due to the single monitoring point, the error of the detected temperature is large. For some mixing processes with high temperature requirements, the large temperature error will affect the stirring and mixing effect. Utility Model Content

[0003] The purpose of the present application is to provide a heating magnetic stirrer with a self-adjusting temperature measuring probe, which solves the problem in the prior art that a single measuring point easily leads to large temperature measurement accuracy errors.

[0004] The technical solution of this application:

[0005] The utility model provides a heating magnetic stirrer with a temperature measuring probe self-adjusting, comprising a magnetic working base and a receiving assembly arranged on the magnetic working base, wherein two temperature measuring stirrers are arranged inside the receiving assembly, and the two temperature measuring stirrers are connected in series, and the temperature measuring stirrer comprises a limit shaft, a limit plate and a stirring temperature measuring blade, the two limit plates are respectively connected to the two ends of the limit shaft, a plurality of stirring temperature measuring blades are connected between the two limit plates, and a plurality of temperature measuring needles are movably connected to the stirring temperature measuring blade.

[0006] Furthermore, working grooves are provided on both side surfaces of the stirring and temperature measuring blades, a plurality of elastic strips are movably connected in the working grooves, and the temperature measuring needles are connected to the elastic strips.

[0007] Furthermore, the elastic strip near the top of the limiting shaft is connected with a controllable driving rod.

[0008] Furthermore, the stirring and temperature measuring blades are spirally arranged on the circumference of the limiting shaft.

[0009] Furthermore, the volume of one of the temperature measuring stirrers is half of that of the other temperature measuring stirrer.

[0010] Furthermore, the containing assembly includes a contact bottom plate, a protective outer cylinder and a working inner cylinder for containing liquid, the protective outer cylinder is sleeved outside the working inner cylinder, the bottom of the protective outer cylinder and the bottom of the working inner cylinder are both connected to the contact bottom plate, a temperature measuring cavity is formed between the protective outer cylinder and the working inner cylinder, and a secondary temperature measuring assembly is arranged in the temperature measuring cavity.

[0011] Furthermore, the secondary temperature measurement component includes two parallel mounted rings and a plurality of working rods connected between the two mounting rings, and a plurality of temperature measuring balls are connected to the working rods at intervals.

[0012] Furthermore, the top and bottom of the temperature measuring cavity are both provided with fixing rings, the fixing rings are provided with T-shaped sliding grooves, and the mounting rings are slidably connected in the sliding grooves.

[0013] Furthermore, a protective cover is provided on the top of the protective outer cylinder, a lifting rod is movably connected to the center of the protective cover, a bottom of the lifting rod is connected to the limiting shaft, and a telescopic rod is connected between the two limiting shafts.

[0014] Furthermore, one side of the protective cover is connected to a positioning rod, the positioning rod is parallel to the lifting rod, and a driver for driving the lifting rod is provided in the positioning rod, an air pressure regulating valve is provided on the protective cover, a heating plate is provided in the magnetic working base, and one side of the magnetic working base is connected to a central controller.

[0015] The technical solution of the present application has at least the following advantages and beneficial effects:

[0016] The utility model provides a heating magnetic stirrer with a temperature measuring probe self-adjusting, which is provided with a magnetic working base and a receiving assembly. The magnetic working base is used to realize magnetic stirring and heating work, and the receiving assembly is installed and supported at the same time. The receiving assembly is used to realize the receiving and temperature measurement of the mixed solution to be stirred. The structure of the temperature measuring stirrer includes a limit shaft, a limit plate, a stirring temperature measuring blade, and a temperature measuring needle. The spiral stirring temperature measuring blade can more effectively stir the liquid while magnetic stirring, thereby upgrading the stirring effect. Two temperature measuring stirrers of different volumes have a plurality of spiral stirring temperature measuring blades of different lengths and widths, which can stir liquids at different liquid levels to different degrees. The stirring temperature measuring blade is provided with a plurality of temperature measuring needles, which can realize temperature measurement while stirring, and can realize simultaneous temperature measurement of different stirring degrees and different liquid levels, thereby solving the problem in the prior art that a single measurement point easily leads to a large error in temperature measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the receiving assembly in the utility model;

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

[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0021] In the figure: 1-magnetic working base; 2-carrying component; 3-limiting shaft; 4-limiting plate; 5-stirring temperature measuring blade; 6-temperature measuring needle; 7-working groove; 8-contact bottom plate; 9-protective outer cylinder; 10-working inner cylinder; 11-mounting ring; 12-working rod; 13-temperature measuring ball; 14-fixing ring; 15-sliding groove; 16-protective cover; 17-lifting rod; 18-positioning rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example

[0024] Please refer to Figure 1-Figure 4 The utility model provides a heating magnetic stirrer with a self-adjusting temperature measuring probe. The device comprises a magnetic working base 1 and a receiving assembly 2 arranged on the magnetic working base 1. Two temperature measuring stirrers are arranged inside the receiving assembly 2. The two temperature measuring stirrers are connected in series. The temperature measuring stirrer comprises a limit shaft 3, a limit plate 4 and a stirring temperature measuring leaf 5. The two limit plates 4 are respectively connected to the two ends of the limit shaft 3. A plurality of stirring temperature measuring leaves 5 are connected between the two limit plates 4. A plurality of temperature measuring needles 6 are movably connected to the stirring temperature measuring leaf 5.

[0025] It is worth noting that the present embodiment is provided with a magnetic working base 1 and a receiving assembly 2, and the magnetic working base 1 is used to realize the magnetic stirring and heating work, and the receiving assembly 2 is installed and supported at the same time, and the receiving assembly 2 is provided to realize the receiving and temperature measurement of the mixed solution to be stirred. In detail, the volume of one temperature measuring stirrer is half of that of the other temperature measuring stirrer. By providing two temperature measuring stirrers of different volumes, on the one hand, the length of the entire temperature measuring stirrer can be increased, ensuring that the liquid level inside the receiving assembly 2 can achieve stirring and temperature measurement to the maximum extent possible. At the same time, due to the different volumes of the two temperature measuring stirrers, the occupation of the internal space of the receiving assembly 2 by the temperature measuring stirrer can be minimized to the maximum extent possible, so that each stirring can stir more solution to the maximum extent possible, thereby maximizing the stirring efficiency. Furthermore, the structure of the temperature measuring stirrer includes a limit shaft 3, a limit plate 4, a stirring temperature measuring blade 5, and a temperature measuring needle 6. The limit shaft 3 is used to limit the axial position of the entire temperature measuring stirrer. The two limit plates 4 are provided to connect the multiple stirring temperature measuring blades 5, which are provided on the peripheral side of the limit shaft 3. Although there is also a rod structure in the prior art, compared with the prior art, the spiral stirring temperature measuring blade 5 provided in this embodiment can more effectively stir the liquid while magnetically stirring, thereby upgrading the stirring effect. The two temperature measuring stirrers of different volumes have multiple spiral stirring temperature measuring blades 5 of different lengths and widths, which can stir the liquid at different liquid levels to different degrees. It should be noted that the stirring temperature measuring blade 5 has multiple temperature measuring needles 6, which can measure the temperature while stirring, and can measure the temperature at different stirring degrees and different liquid levels at the same time, thereby solving the problem that the single measurement point in the prior art easily leads to large temperature measurement accuracy errors.

[0026] Preferably, the large-volume temperature measuring stirrer can be located above the small-volume temperature measuring stirrer, or can be located below the small-volume temperature measuring stirrer, and can be combined according to usage requirements.

[0027] In some embodiments, working grooves 7 are provided on both sides of the stirring and temperature measuring blade 5, and a plurality of elastic strips are movably connected in the working grooves 7, and a temperature measuring needle 6 is connected to the elastic strips. Specifically, the temperature measuring needle 6 is staggeredly connected with the elastic strips, that is, connected in the connection mode of elastic strips, temperature measuring needle 6, elastic strips, and temperature measuring needle 6. Due to the spiral shape of the stirring and temperature measuring blade 5, multiple temperature measuring needles 6 can be connected through the elastic strips, and the position of the temperature measuring needle 6 can also be adjusted. Specifically, a flexible strip is provided at the bottom of the working groove 7, and the flexible strip is fixedly connected to the bottom of the groove, and multiple elastic strips are slidably connected to the flexible strips, so that the elastic strips can be ensured not to be separated from the working groove 7.

[0028] In some embodiments, a controllable driving rod is connected to the elastic strip near the top of the limiting shaft 3. The position of the elastic strip can be controlled by the controllable driving rod, thereby adjusting the temperature measuring position of the temperature measuring needle 6.

[0029] In some embodiments, the containing assembly 2 includes a contact bottom plate 8, a protective outer cylinder 9, and a working inner cylinder 10 for containing liquid. The protective outer cylinder 9 is sleeved outside the working inner cylinder 10. The bottom of the protective outer cylinder 9 and the bottom of the working inner cylinder 10 are both fixedly connected to the contact bottom plate 8. A temperature measuring cavity is formed between the protective outer cylinder 9 and the working inner cylinder 10, and a secondary temperature measuring assembly is arranged in the temperature measuring cavity. The protection of the working inner cylinder 10 is achieved by setting the contact bottom plate 8 and the magnetic working base 1, and by setting the protective outer cylinder 9. On the one hand, the working inner cylinder 10 can be protected from bursting, and on the other hand, the worker can be protected from being injured by the magnetism or high temperature of the working inner cylinder 10 even if it is accidentally touched. By setting the temperature measuring cavity, it is convenient to place the secondary temperature measuring assembly.

[0030] In some embodiments, the secondary temperature measurement assembly includes two parallel mounting rings 11, and a plurality of working rods 12 connected between the two mounting rings 11, and a plurality of temperature measuring balls 13 are connected to the working rods 12 at intervals. A fixing ring 14 is provided at the top and bottom of the temperature measuring chamber, and a T-shaped sliding groove 15 is provided on the fixing ring 14, and the mounting ring 11 is slidably connected in the sliding groove 15. The fixing ring 14 is fixedly connected to the upper and lower sides of the temperature measuring chamber, and the mounting ring 11 is connected in the T-shaped sliding groove 15. When the mounting ring 11 rotates in the sliding groove 15, it can drive the working rod 12 connected to the mounting ring 11 to rotate, and finally drive the temperature measuring ball 13 to rotate. The temperature measuring ball 13 can measure the temperature at different heights of the outer surface of the working inner cylinder 10, and can also warn the staff through the temperature, so that they can clearly understand the temperature in the temperature measuring chamber, reasonably infer the temperature of the protective outer cylinder 9, and avoid safety accidents due to accidental touch.

[0031] In some embodiments, a protective cover 16 is provided on the top of the protective outer cylinder 9 to prevent the liquid from splashing out of the containing assembly 2 during stirring. A lifting rod 17 is movably connected to the center of the protective cover 16, the bottom of the lifting rod 17 is connected to the limit shaft 3, and a telescopic rod is connected between the two limit shafts 3. The lifting rod 17 drives the limit shaft 3 to adjust the position of the temperature measuring needle 6. On the other hand, the position of the temperature measuring needle 6 on the lower temperature measuring stirrer can also be adjusted by adjusting the telescopic rod.

[0032] In some embodiments, a positioning rod 18 is connected to one side of the protective cover 16, and the positioning rod 18 is parallel to the lifting rod 17, and a driver for driving the lifting rod 17 is arranged in the positioning rod 18, and the driver is used to control the lifting work of the lifting rod 17. The positioning rod 18 can fix the position of the driver on the one hand, and can also support the lifting rod 17 on the other hand to prevent it from tilting. An air pressure regulating valve is arranged on the protective cover 16, and the air pressure state in the working inner cylinder 10 is monitored in real time and adjusted in time through the air pressure regulating valve. A heating plate is arranged in the magnetic working base 1, and the heating plate heats the liquid in the working inner cylinder 10. A central controller is connected to one side of the magnetic working base 1. Several temperature measuring balls 13 and several temperature measuring needles 6 transmit the detected temperature to the central controller in real time, and the algorithm module in the central controller calculates it, and detects whether the temperature heated by the magnetic working base 1 meets the temperature required for mixing the two solutions. If it does not meet the requirements, it is adjusted in time to ensure efficient mixing. The central controller is also used to control and adjust the working parameters of magnetism, heating, air pressure, lifting rod 17 and telescopic rod, and store the working state of the entire device in real time.

[0033] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0034] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A heating magnetic stirrer with a temperature measuring probe self-adjusting, characterized in that: include: A magnetic working base (1) and a receiving assembly (2) arranged on the magnetic working base (1), wherein two temperature measuring stirrers are arranged inside the receiving assembly (2), the two temperature measuring stirrers are connected in series, the temperature measuring stirrer comprises a limit shaft (3), a limit plate (4) and a stirring temperature measuring blade (5), the two limit plates (4) are respectively connected to the two ends of the limit shaft (3), a plurality of stirring temperature measuring blades (5) are connected between the two limit plates (4), and a plurality of temperature measuring needles (6) are movably connected to the stirring temperature measuring blade (5).

2. A heating magnetic stirrer with a temperature measuring probe self-adjusting according to claim 1, characterized in that: Working grooves (7) are provided on both side surfaces of the stirring and temperature measuring blade (5), a plurality of elastic strips are movably connected in the working grooves (7), and the temperature measuring needle (6) is connected to the elastic strips.

3. A heating magnetic stirrer with a temperature measuring probe self-adjusting according to claim 2, characterized in that: The elastic strip close to the top of the limiting shaft (3) is connected with a controllable driving rod.

4. A heating magnetic stirrer with a temperature measuring probe self-adjusting according to claim 2, characterized in that: The stirring and temperature measuring blade (5) is arranged in a spiral shape on the circumference of the limiting shaft (3).

5. A temperature probe self-adjusting heating magnetic stirrer according to claim 2, characterized in that: The volume of one of the thermometric stirrers is half that of the other thermometric stirrer.

6. A temperature probe self-adjusting heating magnetic stirrer according to any one of claims 3 to 5, characterized in that: The containing component (2) comprises a contact bottom plate (8), a protective outer cylinder (9) and a working inner cylinder (10) for containing liquid, wherein the protective outer cylinder (9) is sleeved outside the working inner cylinder (10), the bottom of the protective outer cylinder (9) and the bottom of the working inner cylinder (10) are both connected to the contact bottom plate (8), a temperature measuring cavity is formed between the protective outer cylinder (9) and the working inner cylinder (10), and a secondary temperature measuring component is arranged in the temperature measuring cavity.

7. A temperature probe self-adjusting heating magnetic stirrer according to claim 6, characterized in that: The secondary temperature measuring assembly comprises two parallel mounted mounting rings (11), and a plurality of working rods (12) connected between the two mounting rings (11), wherein a plurality of temperature measuring balls (13) are connected to the working rods (12) at intervals.

8. A heating magnetic stirrer with a temperature measuring probe self-adjusting according to claim 7, characterized in that: The top and bottom of the temperature measuring cavity are both provided with a fixing ring (14), a T-shaped sliding groove (15) is provided on the fixing ring (14), and the mounting ring (11) is slidably connected in the sliding groove (15).

9. A heating magnetic stirrer with a temperature measuring probe self-adjusting according to claim 6, characterized in that: A protective cover (16) is arranged on the top of the protective outer cylinder (9), a lifting rod (17) is movably connected to the center of the protective cover (16), the bottom of the lifting rod (17) is connected to the limiting shaft (3), and a telescopic rod is connected between the two limiting shafts (3).

10. A heating magnetic stirrer with a temperature measuring probe self-adjusting according to claim 9, characterized in that: One side of the protective cover (16) is connected to a positioning rod (18), the positioning rod (18) is parallel to the lifting rod (17), and a driver for driving the lifting rod (17) is arranged inside the positioning rod (18), an air pressure regulating valve is arranged on the protective cover (16), a heating plate is arranged inside the magnetic working base (1), and one side of the magnetic working base (1) is connected to a central controller.

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