A pH detection device of a reaction kettle

Abstract

The application relates to the technical field of pH detection, and discloses a pH detection device of a reaction kettle, which comprises a side plate, a connecting seat, an L-shaped frame and a bottom plate connected to the side plate, a butt joint pipe connected to the L-shaped frame, a sealing knob connected to one end of the butt joint pipe, an L-shaped groove arranged on the side plate, a motor frame connected to one side of the side plate, a rotating motor connected to the motor frame, a rotating rod connected to an output end of the rotating motor, a bevel gear No. 2 and stirring blades connected to the rotating rod, a shaft frame connected to a lower end of the bottom plate, and an adjusting shaft rotationally connected to the shaft frame. The pH detection device can realize the effect that the solution is not stirred during detection and the solution is not stirred during stirring by using the clamping head, the stirring environment is prevented from interfering with the pH detection, the reaction can be promoted by stirring to make the internal pH value stable, and then the detection is carried out; meanwhile, the detection head is arranged in the protection structure during the detection, the detection head is prevented from being polluted, and the precision of subsequent detection is improved.

Description

Technical Field

[0001] This invention relates to the field of pH detection technology, and more particularly to a pH detection device for a reaction vessel. Background Technology

[0002] A pH meter is an instrument used to measure the pH of a solution. It uses a pH-selective electrode to determine the pH of the solution. pH meters can be accurate to two decimal places and are commonly used for pH detection of reaction solutions in reaction vessels.

[0003] In a broad sense, a reaction vessel is a container where physical or chemical reactions occur. Through structural design and parameter configuration, it achieves the heating, evaporation, cooling, and low-to-high-speed mixing functions required by the process. Regarding pH detection in reaction vessels, the traditional method involves fixing a pH meter to the top cover and relying on a data cable to transmit data to directly observe pH changes in the solution inside the vessel. To improve detection accuracy and ensure a stable pH value, reaction vessels often incorporate a stirring mechanism. However, the operation of this stirring mechanism can interfere with pH detection. A turbulent environment can cause the pH meter to shake, and the liquid level inside the vessel can change, making it impractical to always keep the bottom of the pH meter submerged. Furthermore, the pH value of the solution changes during the reaction, and stirring can splash the initial solution onto the pH meter, interfering with the final pH readings of the reaction solution.

[0004] Based on this, a pH detection device for a reaction vessel is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a pH detection device for a reaction vessel in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pH detection device for a reaction vessel includes a side plate, a connecting seat, an L-shaped frame, and a base plate connected to the side plate. A connecting pipe is connected to the L-shaped frame, and a sealing button is connected to one end of the connecting pipe. An L-groove is formed on the side plate. A motor frame is connected to one side of the side plate, and a rotary motor is connected to the motor frame. A rotating rod is connected to the output end of the rotary motor. A second bevel gear and a stirring blade are connected to the rotating rod. A shaft frame is connected to the lower end of the base plate, and an adjusting shaft is rotatably connected to the shaft frame. A first bevel gear and an adjusting gear are connected to both ends of the adjusting shaft.

[0008] A cylinder frame is connected to the side plate, and a telescopic cylinder is connected to the cylinder frame. A slide rail is connected to the base plate, and a moving block is slidably connected to the slide rail. A crank handle is rotatably connected to the moving block. A clamping block is connected to one end of the crank handle, and a detection block is connected to the clamping block. A detection head is connected to one end of the detection block, and an adjustment component for adjusting the height of the detection head during detection is connected to one side of the detection block.

[0009] Preferably, the first bevel gear and the second bevel gear mesh with each other.

[0010] Preferably, the rotating rod is rotatably connected to the shaft bracket.

[0011] Preferably, the telescopic cylinder's telescopic end is vertically fixedly connected to the movable block.

[0012] Preferably, one end of the crank handle is connected to a limiting plate, and a sleeve is fitted onto one end of the crank handle, with the sleeve making rolling contact with the L-groove.

[0013] Preferably, the clamping block is connected to a slide rod and a spring, the detection block is slidably connected to the slide rod, and one end of the spring is connected to the detection block.

[0014] Preferably, the adjustment assembly includes a rack, a connecting block is connected to the detection block, a slide rod and a spring are connected to the connecting block, and a movable tooth is slidably connected to the slide rod.

[0015] Preferably, there are two movable teeth, which are symmetrically arranged at both ends of the rack, and one end of the spring is connected to a movable tooth.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. This application adopts a clamping head structure, which enables the pH detection device to achieve the effect of not stirring during detection and not stirring the solution during stirring. This avoids interference from the stirring environment with pH detection. That is, stirring can be used to promote a full reaction and stabilize the internal pH value before detection. At the same time, when not in use, the detection head is placed in a protective structure to prevent the detection head from being contaminated, thereby improving the accuracy of subsequent detection.

[0018] 2. This application adopts a rack and pinion structure, which uses the rotation of the adjusting gear to drive the rack to move and change the height of the detection head. This enables the pH meter to meet the detection requirements of different liquid levels. At the same time, the movable tooth structure limits the descent and ascent height of the detection head, preventing the adjusting gear from rotating excessively and causing the detection head to contact the bottom of the reaction vessel and be damaged. Attached Figure Description

[0019] Figure 1A schematic diagram of the overall structure of the pH detection device provided according to an embodiment of the present invention is shown;

[0020] Figure 2 A schematic diagram of a bevel gear connection provided according to an embodiment of the present invention is shown;

[0021] Figure 3 An exploded structural diagram of the crank handle connection provided according to an embodiment of the present invention is shown;

[0022] Figure 4 An exploded structural diagram of the sleeve connection provided according to an embodiment of the present invention is shown;

[0023] Figure 5 A schematic diagram of the structure of the spring connection provided according to an embodiment of the present invention is shown.

[0024] Legend:

[0025] 1. Side plate; 2. Connecting seat; 3. L-groove; 4. L-frame; 5. Connecting pipe; 6. Sealing button; 7. Motor frame; 8. Rotary motor; 9. Rotating rod; 10. Stirring blade; 11. Base plate; 12. Slide rail; 13. Moving block; 14. Clamping block; 15. Detection block; 16. Detection head; 17. Adjusting gear; 18. Adjusting shaft; 19. Shaft frame; 20. Bevel gear one; 21. Bevel gear two; 22. Limiting plate; 23. Handle; 24. Sleeve; 25. Telescopic cylinder; 26. Cylinder frame; 27. Rack; 28. Movable gear; 29. ​​Connecting block; 30. Slide rod one; 31. Spring one; 32. Slide rod two; 33. Spring two. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-5 The present invention provides a technical solution:

[0028] A pH detection device for a reaction vessel includes a side plate 1, a connecting seat 2, an L-shaped bracket 4, and a base plate 11 connected to the side plate 1. The side plate 1 and the base plate 11 are perpendicular to each other. A connecting pipe 5 is connected to the L-shaped bracket 4, and a sealing button 6 is connected to one end of the connecting pipe 5. The sealing button 6 is in a sealed connection with the connecting pipe 5 in the default state. An L-groove 3 is formed on the side plate 1, which consists of a horizontal part and a vertical part. A motor frame 7 is connected to one side of the side plate 1, and a rotary motor 8 is connected to the motor frame 7. The motor frame 7 ensures the connection of the rotary motor 8. For structural robustness, the output end of the rotary motor 8 is connected to a rotating rod 9. The length of the rotating rod 9 is adaptively adjusted according to the size of the reactor. A bevel gear 21 and a stirring blade 10 are connected to the rotating rod 9. A shaft frame 19 is connected to the lower end of the base plate 11. An adjusting shaft 18 is rotatably connected to the shaft frame 19. The shaft frame 19 is used to limit the structure of the adjusting shaft 18 and the rotating rod 9. A bevel gear 20 and an adjusting gear 17 are connected to both ends of the adjusting shaft 18. The adjusting gear 17 is rotated by driving the bevel gear 20 to rotate.

[0029] A cylinder frame 26 is connected to the side plate 1, and a telescopic cylinder 25 is connected to the cylinder frame 26. The cylinder frame 26 ensures the structural fixation of the telescopic cylinder 25. A slide rail 12 is connected to the bottom plate 11, and a moving block 13 is slidably connected to the slide rail 12. A groove is opened at the lower end of the moving block 13, which fits with the slide rail 12, so that the moving block 13 can slide stably on the slide rail 12. A crank handle 23 is rotatably connected to the moving block 13. A clamping block 14 is connected to one end of the crank handle 23, and the other end of the crank handle 23 is vertically connected to the clamping block 14. A detection block 15 is connected to the clamping block 14, and a detection head 16 is connected to one end of the detection block 15. The detection block 15 is slidably connected to the clamping block 14. An adjustment component is connected to one side of the detection block 15 to adjust the height of the detection head 16 during detection. The height of the detection head 16 is adjusted using this adjustment component to achieve the effect of detecting the pH value of the solution at different liquid levels.

[0030] Specifically, such as Figure 2 As shown, bevel gear 10 and bevel gear 21 mesh with each other. During stirring and testing, the adjusting gear 17 rotates. However, during stirring, the adjusting gear 17 does not move the testing block 15, and the rotation speed of the adjusting gear 17 is different between the two steps.

[0031] Specifically, such as Figure 2 As shown, the rotating rod 9 is rotatably connected to the shaft bracket 19. The shaft bracket 19 is used to limit the rotation of the rotating rod 9 and also to ensure the stability of the rotation of the rotating rod 9.

[0032] Specifically, such as Figure 1As shown, the telescopic cylinder 25 is vertically fixed to the moving block 13. By controlling the telescopic cylinder 25 to extend and retract, the orientation of the detection head 16 is changed. When the telescopic cylinder 25 extends to its maximum distance, the detection head 16 will be placed inside the connecting pipe 5.

[0033] Specifically, such as Figure 4 As shown, one end of the crank handle 23 is connected to the limiting plate 22. The limiting plate 22 ensures that the structure of the crank handle 23 will not shift during operation. One end of the crank handle 23 is fitted with a sleeve 24. The sleeve 24 and the L groove 3 are in rolling contact. By setting the sleeve 24, the structural wear of the crank handle 23 during rotation is reduced, and the durability of the structure is improved.

[0034] Specifically, such as Figure 5 As shown, a second slide rod 32 and a second spring 33 are connected to the clamping block 14. The detection block 15 is slidably connected to the second slide rod 32, and one end of the second spring 33 is connected to the detection block 15. By setting the structure of the second slide rod 32, the stability of the detection block 15 moving within the clamping block 14 is improved, the frictional force between the detection block 15 and the clamping block 14 is reduced, and the stability of the movement of the detection block 15 is improved.

[0035] Specifically, such as Figure 4 As shown, the adjustment assembly includes a rack 27, a connecting block 29 connected to the detection block 15, four connecting blocks 29 are provided, the four connecting blocks 29 are symmetrically connected to the detection block 15, a slide rod 30 and a spring 31 are connected to the connecting block 29, and a movable tooth 28 is slidably connected to the slide rod 30.

[0036] Specifically, such as Figure 4 As shown, there are two movable teeth 28, which are symmetrically arranged at both ends of the rack 27. One end of the spring 31 is connected to the movable teeth 28. By setting the spring 31 structure, the movable teeth 28 can be moved away from the rack 27 structure. When the movable teeth 28 mesh with the adjusting gear 17, rotating the adjusting gear 17 will not drive the rack 27 to move, but will push the movable teeth 28 to move towards the rack 27. At this time, the spring 31 structure is compressed. By setting the movable teeth 28 at both ends of the rack 27, the vertical movement range of the rack 27 is limited, and the detection head 16 is prevented from contacting the bottom of the reactor and being damaged.

[0037] In summary, the pH detection device for a reaction vessel provided in this embodiment can be fixedly connected to the bottom of the top cover of the reaction vessel by means of the connecting seat 2 when it is necessary to detect the pH of the reaction solution in the reaction vessel. After the reaction raw materials are added, the top cover is covered to ensure the sealing of the reaction vessel structure. In order to improve the pH detection accuracy, the device needs to be applied to a reaction vessel made of transparent glass material to facilitate the observation of the reaction process and the descent height of the detection head 16.

[0038] When the solution inside the reactor needs to be fully mixed and reacted, the operator needs to start the rotary motor 8 to make the rotary motor 8 rotate at high speed to complete the stirring of the reaction solution. After the reaction is completed and the liquid level inside the reactor is stable, the rotary motor 8 is stopped and the telescopic cylinder 25 is retracted. The telescopic cylinder 25 pulls the moving block 13 to slide on the slide rail 12, which drives the detection head 16 to separate from the connecting pipe 5. The connecting pipe 5 protects the detection head 16 and prevents the initial solution from splashing onto the detection head 16 during stirring, which would interfere with the subsequent pH detection. The sealing button 6 structure at one end of the connecting pipe 5 allows the connecting pipe 5 to be in a through state and can be connected to the outer wall of the reactor. Removing the sealing button 6 can depressurize the reactor. At the same time, when the detection head 16 is connected to the connecting pipe 5, the detection head 16 can be manually cleaned from the outside to improve the accuracy of the subsequent pH detection. However, when the internal solution is reacting, it is necessary to ensure that the sealing button 6 is tightly installed on the connecting pipe 5 to ensure that the internal reaction environment is not disturbed.

[0039] As the telescopic cylinder 25 continues to retract, when the sleeve 24 on the crank handle 23 enters the vertical part of the L-groove 3, the crank handle 23 begins to rotate. The clamping block 14 deflects from a horizontal to a vertical position until one end of the crank handle 23 is fully inserted into the vertical part of the L-groove 3. At this point, the clamping block 14 is vertically downward, and the rack 27 on one side of the detection block 15 meshes with the adjusting gear 17. The telescopic cylinder 25 retracts to its maximum extent. The operator then needs to control the rotary motor 8 to rotate at a low speed according to the liquid level. The rotation of the rotary motor 8 drives the adjusting gear 17 to rotate, which in turn lowers the detection block 15 until one end of the detection head 16 extends into the liquid surface, completing the pH detection. During this process, the stirring blade 10 also rotates simultaneously, but because the stirring blade 10 rotates at a low speed, it does not interfere with the detection of the detection head 16, improving the adjustability of the pH detection. At the same time, the protection of the detection head 16 also ensures the accuracy of the pH detection.

[0040] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pH detection device for a reaction vessel, comprising a side plate (1), characterized in that, The side plate (1) is connected to a connecting seat (2), an L-frame (4) and a base plate (11). The L-frame (4) is connected to a connecting pipe (5). One end of the connecting pipe (5) is connected to a sealing button (6). The side plate (1) has an L-groove (3). One side of the side plate (1) is connected to a motor frame (7). The motor frame (7) is connected to a rotary motor (8). The output end of the rotary motor (8) is connected to a rotating rod (9). The rotating rod (9) is connected to a bevel gear (21) and a stirring blade (10). The lower end of the base plate (11) is connected to a shaft frame (19). The shaft frame (19) is rotatably connected to an adjusting shaft (18). The two ends of the adjusting shaft (18) are connected to a bevel gear (20) and an adjusting gear (17). A cylinder frame (26) is connected to the side plate (1), a telescopic cylinder (25) is connected to the cylinder frame (26), a slide rail (12) is connected to the bottom plate (11), a moving block (13) is slidably connected to the slide rail (12), a crank handle (23) is rotatably connected to the moving block (13), a clamping block (14) is connected to one end of the crank handle (23), a detection block (15) is connected to the clamping block (14), a detection head (16) is connected to one end of the detection block (15), and an adjustment component for adjusting the height of the detection head (16) during detection is connected to one side of the detection block (15).

2. The pH detection device for a reaction vessel according to claim 1, characterized in that, The first bevel gear (20) and the second bevel gear (21) mesh with each other.

3. The pH detection device for a reaction vessel according to claim 1, characterized in that, The rotating rod (9) is rotatably connected to the shaft frame (19).

4. The pH detection device for a reaction vessel according to claim 1, characterized in that, The telescopic cylinder (25) is vertically fixedly connected to the telescopic end on the movable block (13).

5. The pH detection device for a reaction vessel according to claim 1, characterized in that, One end of the crank handle (23) is connected to the limiting plate (22), and one end of the crank handle (23) is fitted with a sleeve (24), which makes rolling contact with the L groove (3).

6. The pH detection device for a reaction vessel according to claim 1, characterized in that, The clamping block (14) is connected to a slide rod (32) and a spring (33). The detection block (15) is slidably connected to the slide rod (32), and one end of the spring (33) is connected to the detection block (15).

7. The pH detection device for a reaction vessel according to claim 1, characterized in that, The adjustment assembly includes a rack (27), a connecting block (29) connected to the detection block (15), a slide rod (30) and a spring (31) connected to the connecting block (29), and a movable tooth (28) slidably connected to the slide rod (30).

8. The pH detection device for a reaction vessel according to claim 7, characterized in that, Two movable teeth (28) are provided, and the two movable teeth (28) are symmetrically arranged at both ends of the rack (27). One end of the spring (31) is connected to the movable teeth (28).

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