Stirring rod for chemical analysis and detection

Abstract

The utility model provides a chemical analysis and detection stirring rod which comprises a stirring rod main body, an adjusting assembly used for adjusting the length of the stirring rod is arranged on the stirring rod main body, and a dismounting assembly is arranged at the bottom of the stirring rod main body. The stirring rod main body comprises a sleeve rod, a stirring shaft sliding along the sleeve rod, a fixed seat arranged at the bottom of the stirring shaft and stirring blades arranged on the fixed seat, the adjusting assembly adjusts the length of the part, extending into the sleeve rod, of the stirring shaft, and the fixed seat and the stirring blades are detachably connected with the stirring shaft through the dismounting assembly. According to the chemical analysis and detection stirring rod disclosed by the utility model, chemical samples in chemical sample tanks with different depths are stirred by adjusting the length of the stirring rod, and meanwhile, the stirring blades are replaced, so that resource waste is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of stirring, specifically relating to a stirring rod for chemical analysis and testing. Background Technology

[0002] Stirring rods for chemical analysis are devices used to stir samples during chemical reactions or analyses. Commonly used in the chemical industry, they use rotation or vibration to thoroughly mix reactants, thereby accelerating reaction rates and improving efficiency. They are widely applied in chemical synthesis, pharmaceutical preparation, environmental monitoring, food testing, and many other fields. In these fields, accurate stirring is crucial for the accuracy and reliability of experimental results. Stirring rods are typically made of corrosion-resistant and high-temperature-resistant materials such as stainless steel, glass, or special plastics. These materials ensure stable performance under various chemical environments. The performance of a stirring rod is affected by various factors, including material selection, structural design, and surface treatment. Optimizing these factors, strengthening regular testing and maintenance, and enhancing employee training and awareness can effectively improve the performance and lifespan of the stirring rod. However, existing chemical analysis stirring rods still have some shortcomings.

[0003] In existing chemical analysis and testing technologies, the length of stirring rods is typically constant. When stirring chemical samples, the varying depths of sample containers make stirring chemicals in deeper containers inconvenient. Generally, one stirring device can only perform a single experiment. Furthermore, the bottom stirring element of existing chemical analysis and testing stirring rods is not removable; if the stirring element is damaged, the entire device must be replaced, resulting in wasted equipment. In addition, different samples and solutions require different stirring blades. Experimental stirring blades are highly specialized. For example, turbine-type stirring blades or bladed stirring blades are generally not allowed for stirring fibrous samples because the high-speed rotation of the blades can cause burrs on the fiber sample, affecting the accuracy of the analytical data. Commonly used stirring blades in laboratories include mountain-shaped stirring blades and multi-bladed stirring blades. Different experiments have different requirements for stirring blades, resulting in a wide variety of stirring blades used in laboratories. Current stirring rods cannot achieve multi-purpose functionality, requiring laboratories to purchase multiple stirring devices for different experiments. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a chemical analysis and testing stirring rod. By adjusting the length of the stirring rod, chemical samples in chemical sample containers at different depths can be stirred, and the stirring blades can be replaced at the same time to reduce resource waste.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A chemical analysis and testing stirring rod includes a stirring rod body, an adjusting component for adjusting the length of the stirring rod body, and a disassembly and assembly component at the bottom of the stirring rod body. The stirring rod body includes a sleeve rod, a stirring shaft that slides along the sleeve rod, a fixed seat at the bottom of the stirring shaft, and a stirring blade on the fixed seat. The adjusting component adjusts the length of the stirring shaft extending into the sleeve rod. The fixed seat and the stirring blade are detachably connected to the stirring shaft through the disassembly and assembly component.

[0007] Furthermore, the sleeve rod is a cylindrical structure with a certain wall thickness and length. The inner wall of the sleeve rod is provided with at least one axial groove. For example, there can be two grooves, which are arranged opposite to each other. The stirring shaft slides along the grooves. The grooves include, for example, a ventral groove that is directly connected to the internal space of the sleeve rod and wing grooves arranged on both sides of the ventral groove.

[0008] Furthermore, the adjustment assembly includes a sliding seat fixed to the top of the stirring shaft, at least one slider disposed on the sliding seat and sliding in the groove, at least one locking groove opened on the outer wall of the stirring shaft, at least one first threaded through hole opened on the sleeve, a locking screw threaded into the first threaded through hole, and a knob fixed to one end of the locking screw.

[0009] Furthermore, the sliding seat is disposed within the sleeve rod. The sliding seat can be, for example, a circular seat or a square seat. The slider is fixedly connected to the outer wall of the sliding seat. The number of sliders is preferably the same as the number of grooves. The position, shape, and size of the slider on the sliding seat are matched with the position, shape, and size of the groove within the sleeve rod. The slider includes a belly block that slides along the belly groove and wing blocks disposed on both sides of the belly block and sliding along the wing groove. The slider slides along the inner wall of the groove, improving the connection stability between the sliding seat and the stirring shaft.

[0010] Furthermore, the locking groove is arranged along the axial direction of the stirring shaft, and the position of the locking groove corresponds to the position of the first threaded through hole, so that the locking screw enters the locking groove and abuts against the bottom wall of the locking groove to fix the stirring shaft and prevent the stirring shaft from sliding. When it is necessary to change the length of the stirring rod, the locking screw is rotated away from the sleeve rod, the locking screw disengages from the locking groove, the stirring shaft can slide freely, and the sliding seat slides in the sleeve rod, so that the length of the stirring rod matches the depth of the chemical sample container. The locking screw is rotated in the opposite direction until the locking screw abuts against the bottom wall of the locking groove to fix the stirring shaft. By adjusting the length of the stirring shaft extending into the sleeve rod, chemical samples in chemical sample containers at different depths can be stirred.

[0011] Furthermore, the end of the locking screw opposite to the knob is screwed into the first threaded through hole. The knob can be, for example, a hexagonal block or a pentagonal block, to facilitate the inspection personnel to rotate the locking screw.

[0012] Furthermore, the assembly and disassembly components include an inner groove formed in the stirring shaft, a connecting screw set inside the inner groove and extending out of the stirring shaft at its bottom end, a connecting sleeve set on the fixed base and threadedly connected to the connecting screw, a sealing groove set on one side of the inner groove and communicating with the inner groove, a connecting groove set between the sealing groove and the inner groove, a sealing block fastened to the sealing groove, and a rubber block fixed inside the sealing block.

[0013] Furthermore, the stirring shaft is a solid rod-shaped body, and the inner groove is preferably set at the bottom of the stirring shaft. The inner groove is a cavity with a certain space opened inside the stirring shaft. The position where the stirring shaft opens the inner groove forms the cavity wall. The bottom of the inner groove has a second threaded through hole for the connecting screw to extend out. The connecting screw is engaged with the second threaded through hole.

[0014] Furthermore, a dial is fixed at one end of the connecting screw located in the inner groove. The dial is gear-shaped, and the outer periphery of the dial is provided with teeth to facilitate the rotation of the connecting screw by the testing personnel.

[0015] Furthermore, the fixed base has a through hole in its center, and the connecting sleeve is coaxially fixed in the through hole. The length of the connecting sleeve is preferably greater than the length of the connecting screw. The fixed base and the stirring shaft are detachably connected by screwing the connecting screw into or out of the connecting sleeve. When the stirring shaft is connected to the fixed base, the dial is turned, and the dial drives the connecting screw to continuously screw into the connecting sleeve until the bottom of the stirring shaft is tightly against the top surface of the fixed base, fixing the fixed base and the stirring blade to the bottom of the stirring shaft. When it is necessary to disassemble or replace the fixed base and the stirring blade, the connecting screw is rotated in the opposite direction.

[0016] Furthermore, the sealing groove and the connecting groove are formed on the cavity wall of the inner groove. A step extending into the interior of the sealing groove is formed between the sealing groove and the connecting groove. The outer surface of the sealing block fits against the groove wall of the sealing groove. The rubber block is fixed by interference fit with the groove wall of the connecting groove through its own elasticity, ensuring the sealing performance at the connection between the sealing block and the sealing groove, and preventing liquid from entering the inner groove and corroding the connecting screw.

[0017] Furthermore, the outer surface of the sealing block is provided with two grooves. The inspector places his / her fingers in the two grooves, pushes the sealing block into or pulls it out of the groove, and turns the dial.

[0018] Furthermore, a handle is provided at the top of the sleeve to facilitate the carrying of the stirring rod by the testing personnel.

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a chemical analysis stirring rod. By adjusting the locking screw and locking groove in the assembly, the locking screw rotates, causing its end to disengage from or abut against the bottom wall of the locking groove. Disengagement adjusts the length of the stirring shaft, while abutment fixes it, thus facilitating stirring of chemical samples in chemical sample containers of varying depths. By disassembling and assembling the connecting screw and connecting sleeve, the fixing base and stirring blades can be replaced, allowing for easy replacement of the stirring blades. Different shapes of stirring blades can be installed according to different experimental needs, avoiding resource waste. A handle facilitates carrying the stirring rod for testing personnel. A sealing groove and a sealing block that engages within the sealing groove, along with a connecting groove and an interference-fit rubber block, secure the sealing block and ensure a tight seal at the connection between the sealing block and the sealing groove, preventing liquid from entering the inner groove and corroding the connecting screw. A pull groove allows testing personnel to easily push or pull the sealing block into or out of the sealing groove and operate the dial. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a chemical analysis and testing stirring rod according to the present invention.

[0022] Figure 2 This is a schematic diagram of the adjustment components.

[0023] Figure 3 This is a diagram illustrating the assembly and disassembly of the components.

[0024] Figure label:

[0025] 1-Stirring rod body, 11-Sleeve rod, 12-Stirring shaft, 13-Fixed base, 14-Stirring blade, 15-Handle;

[0026] 2-Adjusting component, 21-Sliding seat, 22-Slider, 221-Body block, 222-Wing block, 24-Locking screw, 25-Knob, 26-Locking groove, 27-First threaded through hole;

[0027] 3-Disassembly and assembly components, 31-Connecting screw, 32-Inner groove, 33-Connecting sleeve, 34-Dial plate, 35-Connecting groove, 36-Sealing groove, 37-Rubber block, 38-Sealing block, 39-Pull groove. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] like Figure 1-3As shown, a chemical analysis stirring rod includes a stirring rod body 1, an adjusting component 2 for adjusting the length of the stirring rod body 1, and a disassembly assembly 3 at the bottom of the stirring rod body 1. The stirring rod body 1 includes a sleeve rod 11, a stirring shaft 12 sliding along the sleeve rod 11, a fixing seat 13 located at the bottom of the stirring shaft 12, and a stirring blade 14 mounted on the fixing seat 13. The adjusting component 2 adjusts the length of the stirring shaft 12 extending into the sleeve rod 11. The fixing seat 13 and the stirring blade 14 are detachably connected to the stirring shaft 12 via the disassembly assembly 3. After the stirring shaft 12, fixing seat 13, and stirring blade 14 enter the chemical sample container, as the operator rotates the sleeve rod 11, the sleeve rod 11 causes the stirring blade 14 to rotate via the stirring shaft 12 and fixing seat 13, thus stirring the sample solvent in the chemical sample container for the operator's testing.

[0030] The sleeve rod 11 is a cylindrical structure with a certain wall thickness and length. The inner wall of the sleeve rod 11 is provided with at least one axial groove. For example, there can be two grooves, which are arranged opposite to each other. The stirring shaft 12 slides along the groove. The groove includes, for example, a ventral groove that is directly connected to the internal space of the sleeve rod 11 and wing grooves arranged on both sides of the ventral groove.

[0031] The adjustment assembly 2 includes a sliding seat 21 fixed to the top of the stirring shaft 12, at least one slider 22 disposed on the sliding seat 21 and sliding in the groove, at least one locking groove 26 opened on the outer wall of the stirring shaft 12, at least one first threaded through hole 27 opened on the sleeve rod 11, a locking screw 24 threadedly connected to the first threaded through hole 27, and a knob 25 fixed to one end of the locking screw 24.

[0032] The sliding seat 21 is disposed inside the sleeve rod 11. The sliding seat 21 can be, for example, a circular seat or a square seat. The slider 22 is fixedly connected to the outer wall of the sliding seat 21. The number of sliders 22 is preferably the same as the number of grooves. The position, shape and size of the slider 22 on the sliding seat 21 are matched with the position, shape and size of the groove in the sleeve rod 11. The slider 22 includes a belly block 221 that slides along the belly groove and a wing block 222 disposed on both sides of the belly block 221 and slides along the wing groove. The slider 22 slides along the inner wall of the groove, which improves the connection stability and installation positioning of the sliding seat 21 and the stirring shaft 12.

[0033] The locking groove 26 is arranged along the axial direction of the stirring shaft 12. The position of the locking groove 26 corresponds to the position of the first threaded through hole 27, so that the locking screw 24 enters the locking groove 26 and abuts against the bottom wall of the locking groove 26 to fix the stirring shaft 12 and prevent the stirring shaft 12 from sliding. When it is necessary to change the length of the stirring rod, the locking screw 24 is rotated away from the sleeve rod 11, the locking screw 24 disengages from the locking groove 26, and the stirring shaft 12 can slide freely. The sliding seat 21 slides in the sleeve rod 11 so that the length of the stirring rod matches the depth of the chemical sample container. The locking screw 24 is rotated in the opposite direction until the locking screw 24 abuts against the bottom wall of the locking groove 26 to fix the stirring shaft 12. By adjusting the length of the stirring shaft 12 extending into the sleeve rod 11, the chemical samples in the chemical sample containers at different depths can be stirred.

[0034] The end of the locking screw 24 opposite to the knob 25 is screwed into the first threaded through hole 27. The knob 25 can be, for example, a hexagonal block or a pentagonal block, to facilitate the inspection personnel to rotate the locking screw 24.

[0035] The disassembly and assembly assembly 3 includes an inner groove 32 formed in the stirring shaft 12, a connecting screw 31 set inside the inner groove 32 and extending out of the stirring shaft 12 at its bottom end, a connecting sleeve 33 set on the fixing seat 13 and threadedly connected to the connecting screw 31, a sealing groove 36 set on one side of the inner groove 32 and communicating with the inner groove 32, a connecting groove 35 set between the sealing groove 36 and the inner groove 32, a sealing block 38 fastened to the sealing groove 36, and a rubber block 37 fixed inside the sealing block 38.

[0036] The stirring shaft 12 is a solid rod-shaped body. The inner groove 32 is preferably located at the bottom of the stirring shaft 12. The inner groove 32 is a cavity with a certain space inside the stirring shaft 12. The location where the inner groove 32 is opened on the stirring shaft 12 forms the cavity wall. The bottom of the inner groove 32 has a second threaded through hole for the connecting screw 31 to extend out. The connecting screw 31 is engaged with the second threaded through hole.

[0037] A dial 34 is fixed at one end of the connecting screw 31 located in the inner groove 32. The dial 34 is gear-shaped and has teeth on its outer periphery, which makes it convenient for the testing personnel to rotate the connecting screw 31.

[0038] The fixed base 13 has a through hole in the center, and the connecting sleeve 33 is coaxially fixed in the through hole. The length of the connecting sleeve 33 is preferably greater than the length of the connecting screw 31. The fixed base 13 and the stirring shaft 12 are detachably connected by screwing the connecting screw 31 into or out of the connecting sleeve 33. When the stirring shaft 12 is connected to the fixed base 13, the dial 34 is turned, and the dial 34 drives the connecting screw 31 to continuously screw into the connecting sleeve 33 until the bottom of the stirring shaft 12 is tightly against the top surface of the fixed base 13, thus fixing the fixed base 13 and the stirring blade 14 to the bottom of the stirring shaft 12. When it is necessary to disassemble or replace the fixed base 13 and the stirring blade 14, the connecting screw 31 is rotated in the opposite direction.

[0039] The sealing groove 36 and the connecting groove 35 are formed on the cavity wall forming the inner groove 32. A step extending into the sealing groove 36 is formed between the sealing groove 36 and the connecting groove 35. The outer surface of the sealing block 38 fits against the groove wall of the sealing groove 36. The rubber block 37 is fixed by interference fit with the groove wall of the connecting groove 35 through its own elasticity, ensuring the sealing performance at the connection between the sealing block 38 and the sealing groove 36, and preventing liquid from entering the inner groove 32 and corroding the connecting screw 31.

[0040] The outer surface of the sealing block 38 is provided with two grooves 39. The inspector places his / her fingers in the two grooves 39, pushes the sealing block 38 into or pulls it out of the sealing groove 36, and turns the dial 34.

[0041] The top of the sleeve rod 11 is equipped with a handle 15, which makes it easy for testing personnel to carry the stirring rod.

[0042] The preferred embodiments of this utility model have been described above; however, the above description is not intended to be limiting. Those skilled in the art can make many changes or modifications to this utility model without departing from its spirit and scope. Such changes or modifications should be included within the scope of the appended claims.

Claims

1. A stirring rod for chemical analysis and testing, characterized in that, It includes a stirring rod body (1), an adjusting component (2) for adjusting the length of the stirring rod on the stirring rod body (1), a disassembly and assembly component (3) at the bottom of the stirring rod body (1), the stirring rod body (1) includes a sleeve rod (11), a stirring shaft (12) that slides along the sleeve rod (11), a fixed seat (13) at the bottom of the stirring shaft (12), and a stirring blade (14) on the fixed seat (13). The adjusting component (2) adjusts the length of the stirring shaft (12) extending into the sleeve rod (11). The fixed seat (13) and the stirring blade (14) are detachably connected to the stirring shaft (12) through the disassembly and assembly component (3).

2. The chemical analysis and testing stirring rod according to claim 1, characterized in that, The sleeve (11) is a cylindrical structure. The inner wall of the sleeve (11) is provided with at least one axial groove. The stirring shaft (12) slides along the groove. The groove includes a ventral groove that is directly connected to the internal space of the sleeve (11) and wing grooves provided on both sides of the ventral groove.

3. The chemical analysis and testing stirring rod according to claim 2, characterized in that, The adjusting assembly (2) includes a sliding seat (21) fixed to the top of the stirring shaft (12), at least one slider (22) disposed on the sliding seat (21) and sliding in the groove, at least one locking groove (26) opened on the outer wall of the stirring shaft (12), at least one first threaded through hole (27) opened on the sleeve (11), a locking screw (24) threaded into the first threaded through hole (27), and a knob (25) fixed to one end of the locking screw (24). The sliding seat (21) is disposed in the sleeve (11), and the slider (22) is fixedly connected to the outer wall of the sliding seat (21). 2) The number of slides is the same as the number of chutes. The position, shape and size of the slider (22) on the sliding seat (21) are matched with the position, shape and size of the chutes in the sleeve (11). The slider (22) includes a belly block (221) that slides along the belly groove and a wing block (222) that is set on both sides of the belly block (221) and slides along the wing groove. The locking groove (26) is set along the axial direction of the stirring shaft (12). The position of the locking groove (26) corresponds to the position of the first threaded through hole (27). The end of the locking screw (24) opposite to the knob (25) is screwed into the first threaded through hole (27).

4. The chemical analysis and testing stirring rod according to any one of claims 1-3, characterized in that, The disassembly assembly (3) includes an inner groove (32) opened in the stirring shaft (12), a connecting screw (31) set inside the inner groove (32) and extending out of the stirring shaft (12) at its bottom end, a connecting sleeve (33) set on the fixed seat (13) and threadedly connected to the connecting screw (31), a sealing groove (36) set on one side of the inner groove (32) and communicating with the inner groove (32), a connecting groove (35) set between the sealing groove (36) and the inner groove (32), a sealing block (38) fastened to the sealing groove (36), and a rubber block (37) fixed inside the sealing block (38).

5. The chemical analysis and testing stirring rod according to claim 4, characterized in that, The stirring shaft (12) is a solid rod-shaped body. The inner groove (32) is located at the bottom of the stirring shaft (12). The inner groove (32) is a cavity with a certain space inside the stirring shaft (12). The position where the inner groove (32) is opened on the stirring shaft (12) forms the cavity wall. The bottom of the inner groove (32) has a second threaded through hole for the connecting screw (31) to extend out. The connecting screw (31) is engaged with the second threaded through hole.

6. The chemical analysis and testing stirring rod according to claim 5, characterized in that, A dial (34) is fixed at one end of the connecting screw (31) located in the inner groove (32). The dial (34) is gear-shaped and has teeth on its outer periphery.

7. The chemical analysis and testing stirring rod according to claim 6, characterized in that, The center of the fixed base (13) has a through hole, and the connecting sleeve (33) is coaxially fixed in the through hole. The length of the connecting sleeve (33) is greater than the length of the connecting screw (31).

8. The chemical analysis and testing stirring rod according to claim 7, characterized in that, The sealing groove (36) and the connecting groove (35) are formed on the cavity wall that forms the inner groove (32). A step extending into the sealing groove (36) is formed between the sealing groove (36) and the connecting groove (35). The outer surface of the sealing block (38) fits against the groove wall of the sealing groove (36). The rubber block (37) is interference-fitted with the groove wall of the connecting groove (35) by its own elasticity.

9. The chemical analysis and testing stirring rod according to claim 4, characterized in that, The outer surface of the sealing block (38) is provided with two grooves (39).

10. The chemical analysis and testing stirring rod according to claim 1, characterized in that, The top of the lever (11) is provided with a handle (15).

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