Water bath heating and stirring equipment

Abstract

The invention provides water bath heating and stirring equipment which comprises a supporting table, an inner gear ring is rotatably arranged at the top of the supporting table, four outer gear rings are connected in the inner gear ring in a meshed mode, spline shaft sleeves are connected in the outer gear rings, four through holes are formed in the supporting table, the four spline shaft sleeves are rotatably connected in the four through holes, spline shafts are slidably connected in the spline shaft sleeves, and the spline shafts are connected with the outer gear rings in a meshed mode. Stirring rods are connected to the bottoms of the spline shafts; the driving motor is arranged below the supporting table, an output shaft of the driving motor penetrates through the top of the supporting table to be connected with a gear, and the gear is in meshed connection with the inner gear ring; the lifting mechanism is arranged above a fixing plate, the fixing plate is arranged above the inner gear ring at intervals, the telescopic end of the lifting mechanism is connected with a horizontally-arranged supporting plate, four pull rods are rotationally connected to the supporting plate, and the bottoms of the four pull rods penetrate through the fixing plate to be connected with the four spline shafts. The equipment can control the rotation of a plurality of stirring rods through one power source, reduces the power consumption, can control the stirring rods to automatically lift, and facilitates the transfer of experiment containers.

Description

Technical Field

[0001] The present invention belongs to the technical field of stirring equipment, and particularly relates to a water bath heating and stirring equipment. Background Art

[0002] Water bath heating is a common heating method in laboratories. During experiments, some samples to be heated need to have a consistent or uniform temperature. Therefore, it is necessary to stir the samples heated in experimental containers. Some of the existing stirring methods are to select a motor-driven rod to stir the samples. The defect of this method is that one mixer can only stir the samples in one experimental container. If multiple experimental containers are placed in a water bath to heat samples simultaneously, multiple mixers need to be set up, installed, and it takes a long time to clean the stirring rod after the experiment, which will affect the experimental efficiency, and multiple mixers consume more electric energy. Another method is to select a water bath heating pot with magnetic stirring function. When in use, a magnetic stirring bar needs to be placed in the experimental container, and then the magnetic stirring bar is controlled to rotate through magnetism for stirring. This method has significant advantages in improving experimental efficiency. However, after the experiment, the stirring bar needs to be taken out for manual cleaning, and the magnetic stirring has a poor stirring effect on high-viscosity liquids and is not suitable for experiments that require high power and strong stirring. Therefore, it is necessary to make improvements. Summary of the Invention

[0003] To solve the above-mentioned defects of the prior art, the present application provides a water bath heating and stirring equipment, which can control the rotation of multiple stirring rods through one power source, reduce power consumption, and can control the automatic lifting of the stirring rods to facilitate the transfer of experimental containers.

[0004] To achieve the above object, the present invention adopts the following technologies: A water bath heating and stirring equipment, comprising: A support platform, on the top of which there is a rotating internal gear ring, and four external gear rings are meshed and connected in a circumferential array inside the internal gear ring. A spline shaft sleeve is connected inside each external gear ring. Four through holes are provided on the support platform, and the four spline shaft sleeves are respectively rotatably connected in the four through holes. A spline shaft is slidably connected inside each spline shaft sleeve, and a stirring rod is connected to the bottom of each spline shaft. A driving motor is arranged below the support platform, and the output shaft of the driving motor passes through the top of the support platform and is connected to a gear, and the gear is meshed and connected with the internal gear ring. A lifting mechanism is arranged above a fixing plate, the fixing plate is spaced above the internal gear ring, and the telescopic end of the lifting mechanism is connected to a horizontally arranged support plate. Four pull rods are rotatably connected to the support plate, and the bottoms of the four pull rods pass through the fixing plate and are connected to the four spline shafts.

[0005] Further, a first retaining ring is provided on the top of the support platform, the internal gear ring is rotatably arranged inside the retaining ring, a second retaining ring is provided on the top of the first retaining ring, and the inner diameter of the second retaining ring is smaller than the inner diameter of the internal gear ring.

[0006] Further, four cleaning cylinders are provided below the support platform. The axial directions of the four cleaning cylinders are the same as those of the four spline shafts respectively. The four cleaning cylinders are interconnected through four connecting pipes. A water inlet pipe is connected to the upper side of one of the cleaning cylinders, and a drain pipe is connected to the side of one of the remaining cleaning cylinders. A cross plate is provided below the cleaning cylinder. Plug heads matching the bottom opening diameters of the cleaning cylinders are provided at the four end portions above the cross plate. The center of the cross plate is rotatably connected to a connecting plate. The connecting plate is arranged to move up and down in the vertical direction. A rotating mechanism is provided on the connecting plate. The rotating mechanism is used to drive the cross plate to rotate. When the rotating mechanism drives the cross plate to rotate by a preset angle, the four plug heads are respectively aligned with the four cleaning cylinders. When the telescopic end of the lifting mechanism is fully extended, the pull rod completely enters the cleaning cylinder.

[0007] Further, the top of the connecting plate is connected to the two vertical sections of a U-shaped frame. The horizontal section of the U-shaped frame is above the support plate. When the telescopic end of the lifting mechanism is fully retracted, there is a first preset distance between the support plate and the horizontal section. When the telescopic end of the lifting mechanism is fully extended, the support plate pushes the horizontal section upward by a second preset distance, and the top height of the plug head matches the bottom height of the cleaning cylinder.

[0008] Further, a sliding sleeve is provided on each side of the fixing plate, and the two vertical sections are respectively slidably arranged in the two sliding sleeves.

[0009] Further, the cross plate is rotatably connected to the connecting plate through a rotating shaft. The top of the rotating shaft passes through the top of the support platform and is connected to a limiting plate. When the limiting plate abuts against the support platform and the telescopic end of the lifting mechanism is fully retracted, there is a first preset distance between the support plate and the horizontal section.

[0010] Further, the rotating mechanism includes a cylinder, a first hinge seat, and a second hinge seat. The fixed end of the cylinder is hinged to the first hinge seat. The first hinge seat is connected to the connecting plate. The movable end of the cylinder is hinged to the second hinge seat. The second hinge seat is connected to the cross plate.

[0011] Further, the water inlet pipe is provided at the top of the side of the cleaning cylinder. There are two drain pipes. The height of one of the drain pipes matches the height of the water inlet pipe, and the other drain pipe is provided at the bottom of the side of the cleaning cylinder.

[0012] The beneficial effects of the present invention are as follows: 1. Multiple stirring rods can be controlled to rotate through one power source, reducing power consumption, and the stirring rods can be automatically lifted and lowered, facilitating the transfer of experimental containers.

[0013] 2. The rotating mechanism drives the cross plate to rotate, and by controlling the connecting plate to drive the cross plate to lift and lower, the bottom opening of the cleaning cylinder can be blocked. Cleaning water is introduced into the water inlet pipe of the cleaning cylinder to clean the stirring rods.

[0014] 3. The lifting mechanism alone can push the support plate and the U-shaped frame upward, thereby driving the connecting plate and the cross plate upward, eliminating the need for an additional power source to drive the cross plate upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional view of the overall structure of an embodiment of the present application.

[0016] Figure 2 This is a side view of an embodiment of the present application.

[0017] Figure 3 This is a three-dimensional view of a partial structure of an embodiment of the present application.

[0018] Figure 4 This is a three-dimensional view of another partial structure of an embodiment of the present application.

[0019] Figure 5 This is a three-dimensional view of the connection structure between the spline shaft, the stirring rod, and the support platform in an embodiment of the present application.

[0020] Figure 6 This is a three-dimensional view of a partial structure from another perspective in an embodiment of the present application.

[0021] Figure 7 This is a three-dimensional view of the connection structure between the cleaning cylinder and the connecting pipe in an embodiment of the present application.

[0022] Figure 8 This is a three-dimensional view of yet another partial structure in an embodiment of the present application.

[0023] Figure 9 This is a three-dimensional view of the connection structure between the cross plate, the connecting plate, and the U-shaped frame in an embodiment of the present application.

[0024] Figure 10 For Figure 9 the enlarged view of part A in

[0025] Reference numerals: support platform - 1, internal gear ring - 2, external gear ring - 3, stirring rod - 4, drive motor - 5, lifting mechanism - 6, cleaning cylinder - 7, cross plate - 8, connecting plate - 9, U-shaped frame - 10, sliding sleeve - 11, cylinder - 12, spline shaft - 13, through hole - 101, spline shaft sleeve - 301, first retaining ring - 302, second retaining ring - 303, gear - 501, fixing plate - 601, support plate - 602, pull rod - 603, connecting pipe - 701, water inlet pipe - 702, drain pipe - 703, plug - 801, rotating shaft - 802, limiting plate - 803, vertical section - 1001, horizontal section - 1002, first hinge seat - 1201, second hinge seat - 1202. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will describe the embodiments of the present invention in detail with reference to the accompanying drawings. However, the embodiments described herein are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0027] An embodiment of the present application provides a water bath heating and stirring device, as Figures 1 - 10 shown, which includes a support table 1, a driving motor 5, a lifting mechanism 6, etc.

[0028] Specifically, a ring gear 2 is rotatably provided on the top of the support table 1. Four external gear rings 3 are meshed and connected in a circumferential array within the ring gear 2. A spline shaft sleeve 301 is connected within each of the external gear rings 3. Four through holes 101 are formed on the support table 1. The four spline shaft sleeves 301 are respectively rotatably connected within the four through holes 101. A spline shaft 13 is slidably connected within each of the spline shaft sleeves 301. Stirring rods 4 are connected to the bottoms of the spline shafts 13. More specifically, the connection manner between the stirring rod 4 and the spline shaft 13 is a threaded connection, and the stirring rod 4 with a corresponding size can be replaced according to the size of the experimental container. The driving motor 5 is provided below the support table 1. The output shaft of the driving motor 5 passes through the top of the support table 1 and is connected to a gear 501. The gear 501 is meshed and connected to the ring gear 2. The lifting mechanism 6 is provided above a fixing plate 601. The fixing plate 601 is spaced above the ring gear 2. The telescopic end of the lifting mechanism 6 is connected to a horizontally arranged support plate 602. Four pull rods 603 are rotatably connected to the support plate 602. The bottoms of the four pull rods 603 pass through the fixing plate 601 and are connected to the four spline shafts 13.

[0029] During actual use, the stirring device is erected above the water bath. Control the telescopic end of the lifting mechanism 6 to extend, driving the support plate 602 and the pull rods 603 to move upward, and then driving the spline shaft 13 and the stirring rod 4 to move upward, so as to avoid blocking the experimental container when transferring the experimental container. Specifically, the sum of the lengths of the spline shaft 13 and the spline shaft sleeve 301 can be set to be greater than the extended length of the telescopic end of the lifting mechanism 6, so that the spline shaft 13 will not disengage from the spline shaft sleeve 301 during vertical movement. When placing the experimental container into the water bath, align the openings of the four experimental containers with the four stirring rods 4, and then control the telescopic end of the lifting mechanism 6 to retract, so that the stirring rods 4 move downward into the experimental container. Then control the driving motor 5 to drive the gear 501 to rotate. The gear 501 will drive the ring gear 2 to rotate. The ring gear 2 will drive the four external gear rings 3 to rotate through the four external gear rings 3, and then drive the four stirring rods 4 to rotate synchronously.

[0030] Specifically, refer to Figure 3 、 Figure 4, a first retaining ring 302 is provided at the top of the support platform 1. The internal gear ring 2 is rotatably arranged within the retaining ring. A second retaining ring 303 is provided at the top of the first retaining ring 302. The inner diameter of the second retaining ring 303 is smaller than the inner diameter of the internal gear ring 2, and is used to block the internal gear ring 2 and the external gear ring 3 to prevent the internal gear ring 2 and the external gear ring 3 from moving upward due to the upward frictional force.

[0031] Preferably, in one embodiment, refer to Figures 6 - 9 , four cleaning cylinders 7 are provided below the support platform 1. The axial directions of the four cleaning cylinders 7 are respectively the same as the axial directions of the four spline shafts 13. The four cleaning cylinders 7 are interconnected through four connecting pipes 701. A water inlet pipe 702 is connected to the upper side of one of the cleaning cylinders 7, and a drain pipe 703 is connected to the side of one of the remaining cleaning cylinders 7. A cross plate 8 is provided below the cleaning cylinder 7. Plug heads 801 matching the bottom opening diameter of the cleaning cylinder 7 are provided at the four end parts above the cross plate 8. The center of the cross plate 8 is rotatably connected to a connecting plate 9. The connecting plate 9 is arranged to move up and down in the vertical direction. A rotating mechanism is provided on the connecting plate 9, and the rotating mechanism is used to drive the cross plate 8 to rotate. When the rotating mechanism drives the cross plate 8 to rotate by a preset angle, the four plug heads 801 respectively align with the four cleaning cylinders 7. When the telescopic end of the lifting mechanism 6 is fully extended, the pull rod 603 completely enters the cleaning cylinder 7. When the experimental sample is completed with water bath heating, the experimental sample will adhere to the stirring rod 4. In order to avoid contaminating the next experimental sample, it needs to be cleaned in time. In this embodiment, after controlling the lifting mechanism 6 to drive the spline shaft 13 and the stirring rod 4 to rise through the support plate 602, the stirring rod 4 completely enters the cleaning cylinder 7. Then, when controlling the rotating mechanism to drive the cross plate 8 to rotate by a preset angle, the four plug heads 801 respectively align with the four cleaning cylinders 7. Then, control the connecting plate 9 to move upward so that the four plug heads 801 enter the four cleaning cylinders 7 to block the bottom of the cleaning cylinder 7. Then, introduce cleaning water into the water inlet pipe 702. Since the four cleaning cylinders 7 are interconnected through the connecting pipes 701, the cleaning water can enter the four cleaning cylinders 7 to wash the four stirring rods 4. After the washing is completed, drain the water in the cleaning cylinder 7 through the drain pipe 703, and then control the connecting plate 9 to move downward and control the rotating mechanism to drive the cross plate 8 to reset, so that the stirring rod 4 can be automatically dried.

[0032] Specifically, refer to Figure 7 , the water inlet pipe 702 is provided at the top of the side of the cleaning cylinder 7. There are two drain pipes 703. The height of one of the drain pipes 703 matches the height of the water inlet pipe 702, and the other drain pipe 703 is provided at the bottom of the side of the cleaning cylinder 7. During the process of cleaning the stirring rod 4, the drain pipe 703 with a higher height can be opened first to synchronously discharge the water sent into the cleaning cylinder 7 by the water inlet pipe 702 to improve the cleaning effect. After the cleaning is completed, then open the drain pipe 703 with a lower height to drain the remaining water in the cleaning cylinder 7.

[0033] Preferably, see Figure 8 , Figure 9 The top of the connecting plate 9 is connected to two vertical sections 1001 of a U-shaped frame 10, and the transverse section 1002 of the U-shaped frame 10 is above the support plate 602. When the telescopic end of the lifting mechanism 6 is fully retracted, there is a first preset distance between the support plate 602 and the transverse section 1002. When the telescopic end of the lifting mechanism 6 is fully pushed out, the support plate 602 pushes the transverse section 1002 upward by a second preset distance, and the top height of the plug 801 matches the bottom height of the cleaning cylinder 7, which is used to block the bottom opening of the cleaning cylinder 7. With this arrangement, the support plate 602 and the U-shaped frame 10 can be pushed upward only by the lifting mechanism 6, thereby driving the connecting plate 9 and the cross plate 8 to move upward, without the need for an additional power source to drive the cross plate 8 to rise. For details, refer to Figure 8 A sliding sleeve 11 is provided on both sides of the fixed plate 601, and the two vertical sections 1001 are slidably arranged in the two sliding sleeves 11 respectively, so as to improve the stability of the up and down movement of the U-shaped frame 10 and prevent it from deflecting.

[0034] For details, see Figure 8 , Figure 9 The cross plate 8 is rotatably connected to the connecting plate 9 through a rotating shaft 802, and the top of the rotating shaft 802 passes through the top of the support platform 1 and is connected to a limiting plate 803. When the limiting plate 803 abuts against the support platform 1 and the telescopic end of the lifting mechanism 6 is fully retracted, there is a first preset distance between the support plate 602 and the transverse section 1002. Through this setting, when the U-shaped frame 10 is not abutting against the support plate 602, the limiting plate 803 can be used to limit the maximum downward movement distance of the cross plate 8 and the connecting plate 9, so that the transverse section 1002 of the U-shaped frame 10 can maintain a fixed height when it is not pushed by the support plate 602.

[0035] For details, see Figure 10 The rotating mechanism includes a cylinder 12, a first hinge seat 1201, and a second hinge seat 1202. The fixed end of the cylinder 12 is hinged to the first hinge seat 1201, the first hinge seat 1201 is connected to the connecting plate 9, the movable end of the cylinder 12 is hinged to the second hinge seat 1202, and the second hinge seat 1202 is connected to the cross plate 8. Specifically, when the telescopic end of the cylinder 12 is pushed out, the cross plate 8 rotates until the four plugs 801 are aligned with the four cleaning cylinders 7. When the telescopic end of the cylinder 12 is retracted, the cross plate 8 rotates back 45 degrees and leaves the coverage of the cleaning cylinder 7. More specifically, the lifting mechanism 6 selects an electric push rod, and the push-out speed of the telescopic end of the electric push rod is set to be less than the push-out speed of the telescopic end of the cylinder 12. After the stirring rod 4 completely enters the cleaning cylinder 7, the telescopic end of the cylinder 12 can be controlled to be pushed out, driving the cross plate 8 to rotate quickly, so that the plug 801 and the cleaning cylinder 7 are aligned before the telescopic end of the electric push rod is completely pushed out.

[0036] The above are only the preferred embodiments of the present invention and do not represent the only or limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention all fall within the scope of protection of the present invention.

Claims

1. A water bath heating and stirring device, characterized in that: include: A support platform (1) is provided with an inner gear ring (2) on the top thereof for rotation, four outer gear rings (3) are meshed and connected in a circular array in the inner gear ring (2), and each of the outer gear rings (3) is connected to a spline shaft sleeve (301), four through holes (101) are provided on the support platform (1), and the four spline shaft sleeves (301) are respectively rotatably connected to the four through holes (101), and each of the spline shaft sleeves (301) is slidably connected to a spline shaft (13), and each of the bottoms of the spline shafts (13) is connected to a stirring rod (4); A drive motor (5) is disposed below the support platform (1); an output shaft of the drive motor (5) passes through the top of the support platform (1) and is connected to a gear (501); the gear (501) is meshedly connected to the inner gear ring (2); The lifting mechanism (6) is arranged above a fixed plate (601), and the fixed plate (601) is arranged above the inner gear ring (2) at intervals. The telescopic end of the lifting mechanism (6) is connected to a horizontally arranged support plate (602), and four pull rods (603) are rotatably connected to the support plate (602). The bottoms of the four pull rods (603) pass through the fixed plate (601) and are connected to four spline shafts (13).

2. A water bath heating and stirring device according to claim 1, characterized in that: A first retaining ring (302) is provided on the top of the support platform (1), the inner gear ring (2) is rotatably arranged inside the retaining ring, a second retaining ring (303) is provided on the top of the first retaining ring (302), and the inner diameter of the second retaining ring (303) is smaller than the inner diameter of the inner gear ring (2).

3. A water bath heating and stirring device according to claim 1, characterized in that: Four cleaning cylinders (7) are provided below the support platform (1). The axial directions of the four cleaning cylinders (7) are respectively the same as the axial directions of the four spline shafts (13). The four cleaning cylinders (7) are interconnected through four connecting pipes (701). The upper side of one of the cleaning cylinders (7) is connected to a water inlet pipe (702). The side of one of the remaining cleaning cylinders (7) is connected to a drain pipe (703). A cross plate (8) is provided below the cleaning cylinder (7). Four ends above the cross plate (8) are provided with plugs (801) matching the diameter of the bottom opening of the cleaning cylinder (7). The center of the cross plate (8) is rotatably connected to a connecting plate (9). The connecting plate (9) is arranged to move up and down in the vertical direction. A rotating mechanism is provided on the connecting plate (9). The rotating mechanism is used to drive the cross plate (8) to rotate. When the rotating mechanism drives the cross plate (8) to rotate by a preset angle, the four plugs (801) are respectively aligned with the four cleaning cylinders (7). When the telescopic end of the lifting mechanism (6) is fully pushed out, the pull rod (603) completely enters the cleaning cylinder (7).

4. A water bath heating and stirring device according to claim 3, characterized in that: The top of the connecting plate (9) is connected to two vertical sections (1001) of a U-shaped frame (10), and the transverse section (1002) of the U-shaped frame (10) is located above the support plate (602). When the telescopic end of the lifting mechanism (6) is fully retracted, a first preset distance exists between the support plate (602) and the transverse section (1002). When the telescopic end of the lifting mechanism (6) is fully pushed out, the support plate (602) pushes the transverse section (1002) upwards by a second preset distance, and the top height of the plug (801) matches the bottom height of the cleaning cylinder (7).

5. A water bath heating and stirring device according to claim 4, characterized in that: A sliding sleeve (11) is provided on both sides of the fixed plate (601), and the two vertical sections (1001) are slidably disposed in the two sliding sleeves (11), respectively.

6. A water bath heating and stirring device according to claim 3, characterized in that: The cross plate (8) is rotatably connected to the connecting plate (9) via a rotating shaft (802); the top of the rotating shaft (802) passes through the top of the support platform (1) and is connected to a limiting plate (803); when the limiting plate (803) abuts against the support platform (1) and the telescopic end of the lifting mechanism (6) is fully retracted, a first preset distance is provided between the support plate (602) and the transverse section (1002).

7. A water bath heating and stirring device according to claim 3, characterized in that: The rotating mechanism comprises a cylinder (12), a first hinge seat (1201), and a second hinge seat (1202); the fixed end of the cylinder (12) is hinged to the first hinge seat (1201), the first hinge seat (1201) is connected to the connecting plate (9), the movable end of the cylinder (12) is hinged to the second hinge seat (1202), and the second hinge seat (1202) is connected to the cross plate (8).

8. The water bath heating and stirring device according to claim 3, characterized in that: The water inlet pipe (702) is arranged at the top of the side of the cleaning cylinder (7), and there are two drainage pipes (703), wherein the height of one drainage pipe (703) matches the height of the water inlet pipe (702), and the other drainage pipe (703) is arranged at the bottom of the side of the cleaning cylinder (7).

Images