Magnetic stirring paddle with bracket

Abstract

The utility model discloses a magnetic stirring paddle with a bracket. The magnetic stirring paddle comprises a stirring bracket and a stirring paddle, the stirring bracket comprises a bracket middle shaft and a bracket arm; a plurality of bracket arms are provided and extend outwards from the side wall of the bracket middle shaft in a radiation manner; a bracket clamping hook for clamping a vessel opening is formed at the tail end of the bracket arm; the stirring paddle is movably connected with the bracket middle shaft and can rotate relative to the bracket middle shaft. According to the magnetic stirring paddle with the bracket, disclosed by the utility model, the stirring paddle can be fixed at the opening of a vessel, so that the smoothness of the rotation process of the stirrer is ensured, and a detection instrument can also be arranged on the stirring bracket.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory equipment, and particularly relates to a magnetic stirring paddle with a bracket. Background Art

[0002] Magnetic stirring utilizes the principle of like poles repelling and opposite poles attracting in a magnetic field, and uses the magnetic field to drive a magnetic stirrer placed in a container to rotate in a circular motion, so as to achieve the purpose of stirring the liquid.

[0003] Magnetic stirring can achieve rapid and uniform mixing of liquids, and can improve the accuracy and repeatability of experiments. Therefore, magnetic stirring is widely used in various containers, such as beakers, round-bottom flasks, enamelware, etc.

[0004] When performing a stirring operation using magnetic stirring, the stirrer is prone to jumping. The possible causes are as follows: 1) The viscosity of the sample hinders the rotation of the stirrer, making it unable to form an effective spiral rotation; 2) The length of the stirrer is close to the diameter of the vessel, and it is also prone to jumping under high-speed rotation; 3) When the vessel is not placed at the magnetic center of the magnetic stirrer, or the stirrer is not at the magnetic center at the bottom of the vessel, the stirrer is also prone to jumping.

[0005] Therefore, a magnetic stirring paddle with a bracket is needed to solve the above problems. In addition, monitoring instruments such as a pH electrode and a thermometer can also be installed on the bracket. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a magnetic stirring paddle with a bracket, which can fix itself at the mouth of the vessel to ensure the smooth rotation of the stirrer, and can also install monitoring instruments on the stirring bracket.

[0007] To achieve the above purpose, the technical solution of the utility model is to design a magnetic stirring paddle with a bracket, which includes a stirring bracket and a stirring paddle; the stirring bracket includes a bracket central axis and bracket arms; there are several bracket arms, and they radially extend outwards from the side wall of the bracket central axis; the end of the bracket arm forms a bracket hook for clamping the mouth of the vessel; the stirring paddle is movably connected to the bracket central axis, and the stirring paddle can rotate relative to the bracket central axis.

[0008] Further, the stirring paddle includes a fixing rod and a stirring column, and the lower end of the fixing rod is movably connected to the upper end of the stirring column, and the fixing rod is fixedly connected to the bracket central axis in the horizontal direction; the stirring column is provided with a stirrer and paddle blades.

[0009] Further, a shock-absorbing piece for abutting against the outer wall of the vessel mouth to play a shock-absorbing role is provided at the end of the bracket hook.

[0010] Further, a shock-absorbing ring is provided on the support arm for cushioning between the support arm and the upper edge of the mouth of the utensil, playing a role in shock absorption and buffering.

[0011] Further, a screw cap is connected to the end of the central axis of the support by means of threaded connection, and through holes for the fixing rod to pass through are respectively provided in the center of the central axis of the support and on the cover surface of the screw cap; a clamping sleeve is sleeved on the fixing rod, and the clamping sleeve is located between the screw cap and the central axis of the support, and the fixing rod is fixed by fixing the clamping sleeve with the screw cap and the central axis of the support.

[0012] Further, the clamping sleeve is a tapered clamping sleeve; a tapered surface for mating with the tapered portion of the tapered clamping sleeve is provided at the end of the central axis of the support.

[0013] Further, a number of insertion holes are provided on the support arm.

[0014] Further, a water blocking rod is inserted into the insertion hole.

[0015] Further, a number of limiting ring grooves are provided on the outer wall of the water blocking rod, a limiting ring is sleeved in the limiting ring groove of the water blocking rod, and the outer diameter of the limiting ring is larger than the inner diameter of the insertion hole.

[0016] Further, a water blocking rod insertion hole is provided on the upper end surface of the water blocking rod.

[0017] The advantages and beneficial effects of the present utility model are as follows: A magnetic stirring paddle with a support according to the present utility model can fix itself at the mouth of the utensil, ensuring the smoothness of the rotation process of the stirring bar, and a monitoring instrument can also be installed on the stirring support. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is an installation schematic diagram of the present utility model.

[0020] Figure 3 It is an exploded schematic diagram of each component of the present utility model.

[0021] Figure 4 It is a schematic sectional view of the present utility model.

[0022] Figure 5 It is a schematic diagram of multiple insertion holes provided on a single support arm of the stirring support.

[0023] Figure 6 It is a schematic diagram of the water blocking rod.

[0024] Among them, there are a stirring support 1, a support hook 1-1, a first jack 1-2, a second jack 1-3, a screw cap 2, a tapered sleeve 3, a fixing rod 4, a stirring column 5, a stirring bar 6, a paddle 7, a shock-absorbing ring 8, a shock-absorbing piece 9, a limiting ring 10, a water-blocking rod 11, a limiting ring groove 11-1, and a beaker A. Detailed implementation manners

[0025] The following will further describe the detailed implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0026] Embodiment:

[0027] As Figures 1 to 4 shown, a magnetic stirring paddle with a support includes a stirring support 1, a screw cap 2, a tapered sleeve 3, a fixing rod 4, a stirring column 5, a stirring bar 6, a paddle 7, a shock-absorbing ring 8, and a shock-absorbing piece 9.

[0028] The stirring support 1 includes a support central axis for fixing the fixing rod 4 and a plurality of support arms horizontally extending outward from the side wall of the support central axis. The ends of the support arms are bent downward to form support hooks 1-1 for clamping the mouth of the vessel.

[0029] At the end of the support hook 1-1, there is a shock-absorbing piece 9 for abutting against the outer wall of the vessel mouth to play a shock-absorbing role.

[0030] On the support arm, there is a shock-absorbing ring 8 for padding between the support arm and the upper edge of the vessel mouth to play a shock-absorbing and buffering role.

[0031] The upper end of the support central axis is connected to the screw cap 2 by means of threaded connection, and through holes for the fixing rod 4 to pass through are respectively provided in the center of the support central axis and on the cover surface of the screw cap 2.

[0032] On the inner wall of the through hole at the upper end of the support central axis, there is a conical surface. While the tapered sleeve 3 is sleeved on the fixing rod 4, the conical surface of the tapered sleeve 3 fits the conical surface of the through hole at the upper end of the support central axis, and the tapered sleeve 3 is located between the screw cap 2 and the support central axis. By screwing the screw cap 2, the screw cap 2 presses the tapered sleeve 3, so that the tapered sleeve 3 fixes the fixing rod 4 in the through hole of the support central axis.

[0033] The lower part of the fixing rod 4 is movably connected to the stirring column 5, and a stirring bar 6 and a paddle 7 are provided on the stirring column 5.

[0034] The bracket arm is provided with a first jack 1-2 or a second jack 1-3. The first jack 1-2 is used for inserting a water baffle rod 11. A plurality of limiting ring grooves 11-1 for clamping into a limiting ring 10 are arranged on the outer wall of the water baffle rod 11. The outer diameter of the limiting ring 10 is larger than the inner diameter of the first jack 1-2, so that the water baffle rod 11 is fixed on the first jack 1-2 through the limiting ring 10. The second jack 1-3 is used for inserting a PH electrode, a thermometer, etc.

[0035] As Figure 2 shown, the practical method of the present utility model is as follows:

[0036] 1) Clamp the bracket buckle 1-1 of the stirring bracket 1 on the outer wall of the opening of the beaker A. The shock-absorbing ring 8 and the shock-absorbing sheet 9 can reduce the vibration between the outer wall of the beaker A and the stirring bracket 1 during the magnetic stirring process. Place the beaker A on the magnetic stirrer, turn on the switch of the magnetic stirrer, and the stirring bar 6 drives the entire stirring column 5 to rotate relative to the fixed rod 4. Through the fixing effect of the fixed rod 4 in the vertical direction, the stirring bar 6 is prevented from jumping during the stirring process.

[0037] 2) Use the water baffle rod 11 as appropriate according to the stirring situation. The main function of the water baffle rod 11 is to divert and disperse the vortices with relatively fast flow rate and large size during the stirring process, so as to avoid the occurrence of liquid splashing and other situations caused by the too fast rotation rate of the vortices.

[0038] 3) According to the experimental needs, test instruments such as a PH electrode and a thermometer can be placed in the second jack 1-3.

[0039] As Figure 5 shown, multiple jacks are arranged on a certain bracket arm of the stirring bracket of the magnetic stirring paddle with a bracket for inserting electrodes of different specifications (or other monitoring instruments, water baffle rods, etc.).

[0040] As Figure 6 shown, for the water baffle rod 11, the water baffle rod 11 can be made into a hollow structure, that is, a water baffle rod insertion hole 11-2 is provided on the upper end surface of the water baffle rod 11, and the thermometer can be directly inserted into the water baffle rod insertion hole 11-2, thus saving the number of jacks arranged on the bracket arm.

[0041] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model.

Claims

1. A magnetic stirring paddle with a bracket, characterized in that: It includes a stirring bracket and a stirring paddle; the stirring bracket includes a bracket central axis and bracket arms; there are several bracket arms, and they radially extend outward from the side wall of the bracket central axis; the ends of the bracket arms form bracket hooks for clamping the mouth of the vessel; the stirring paddle is movably connected to the bracket central axis, and the stirring paddle can rotate relative to the bracket central axis.

2. The magnetic stirring paddle with a bracket according to claim 1, wherein: The stirring paddle includes a fixed rod and a stirring column, and the lower end of the fixed rod is movably connected to the upper end of the stirring column, and the fixed rod is fixedly connected to the bracket central axis in the horizontal direction; the stirring column is provided with stirring elements and blades.

3. The magnetic stirring paddle with a bracket according to claim 1, characterized in that: The end of the bracket hook is provided with a shock-absorbing piece for abutting against the outer wall of the vessel mouth to play a shock-absorbing role.

4. The magnetic stirring paddle with a bracket according to claim 1, characterized in that: The bracket arm is provided with a shock-absorbing ring for being padded between the bracket arm and the upper edge of the vessel mouth to play a shock-absorbing and buffering role.

5. The magnetic stirring paddle with a bracket according to claim 2, characterized in that: The end of the bracket central axis is connected with a screw cap by means of threaded connection, and through holes for the fixed rod to pass through are respectively provided in the center of the bracket central axis and on the cover surface of the screw cap; a clamping sleeve is sleeved on the fixed rod, and the clamping sleeve is located between the screw cap and the bracket central axis, and the fixed rod is fixed by fixing the clamping sleeve with the screw cap and the bracket central axis.

6. The magnetic stirring paddle with a bracket according to claim 5, characterized in that: The clamping sleeve is a tapered clamping sleeve; the end of the bracket central axis is provided with a conical surface for fitting with the conical part of the tapered clamping sleeve.

7. A magnetic stirring paddle with a bracket according to claim 1, characterized in that: Several insertion holes are provided on the bracket arm.

8. The magnetic stirring paddle with a bracket according to claim 7, characterized in that: A water blocking rod is inserted into the insertion hole.

9. The magnetic stirring paddle with a bracket according to claim 8, characterized in that: Several limit ring grooves are provided on the outer wall of the water blocking rod, a limit ring is sleeved in the limit ring groove of the water blocking rod, and the outer diameter of the limit ring is larger than the inner diameter of the insertion hole.

10. A magnetic stirring paddle with a bracket according to claim 8, characterized in that: A water blocking rod insertion hole is provided on the upper end surface of the water blocking rod.

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