Chemical instrument calibrating device

Abstract

The utility model discloses a chemical instrument calibrating device, which belongs to the field of chemical instrument calibration, and comprises a rack, a calibrating box is fixed at the top of the rack, a calibrating mechanism is arranged in the calibrating box, a wiping mechanism for cleaning reagent bottles is arranged on the calibrating box, the wiping mechanism comprises a mounting frame fixed on the calibrating box, and the mounting frame is fixed on the rack. An electric push rod is mounted on the mounting frame, a lifting frame is fixed to the bottom end of an extension rod of the electric push rod, a rotating pipe is rotationally arranged on the lifting frame through a bearing, and the bottom end of the rotating pipe communicates with a rectangular shell. Through the arrangement of the wiping mechanism, the reagent bottle can be thoroughly cleaned in all directions, residual accumulated liquid and dirt in the bottle can be effectively removed, the residual liquid is scraped off through mechanical friction, compared with traditional manual wiping, the cleaning effect is more thorough, the reagent bottle can go deep into all corners in the bottle, the cleanliness of the reagent bottle is greatly improved, and the reagent bottle cleaning efficiency is improved. And a foundation is laid for subsequent accurate verification.

Description

Technical Field

[0001] This utility model relates to the field of chemical instrument calibration technology, and in particular to a chemical instrument calibration device. Background Technology

[0002] In chemical experiments and many scientific research and production fields, the accuracy of chemical instruments plays a crucial role in experimental results and product quality. Therefore, the calibration of chemical instruments is indispensable. However, traditional chemical instrument calibration devices have revealed many problems when faced with the calibration of commonly used chemical instruments such as reagent bottles.

[0003] Typically, reagent bottles often retain various chemical reagents after use. Even after simple rinsing, liquid can easily accumulate on the bottle walls and bottom. This accumulated liquid may contain unreacted chemicals, and over time, the residual liquid may evaporate, crystallize, or undergo chemical reactions, altering the internal chemical environment of the reagent bottle. When using existing testing equipment to test key indicators such as volume accuracy, the accumulated liquid inside the bottle can severely interfere with the testing process. For example, in the volume testing stage, the accumulated liquid occupies a certain space, causing the measured actual volume data of the reagent bottle to deviate greatly, failing to accurately reflect its nominal volume, and thus affecting subsequent experimental operations that use the reagent bottle to hold accurate doses of reagents. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that reagent bottles often have various chemical reagents remaining inside after use, which affects the testing effect, and to propose a chemical instrument testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A chemical instrument calibration device includes a frame, a calibration box fixed to the top of the frame, a calibration mechanism inside the calibration box, and a wiping mechanism for cleaning reagent bottles on the calibration box. The wiping mechanism includes a mounting frame fixed to the calibration box, an electric push rod mounted on the mounting frame, a lifting frame fixed to the bottom end of the extension rod of the electric push rod, a rotating tube rotatably mounted on the lifting frame via a bearing, and a rectangular shell connected to the bottom end of the rotating tube.

[0007] Preferably, the frame is provided with a movable mounting plate, which is driven by a cylinder mounted on the frame. The mounting plate is also provided with a movable moving plate that moves relative to it. The mounting plate is equipped with a cylinder for moving the mounting plate, and a clamping block is fixed on the movable plate.

[0008] Preferably, the wiping mechanism further includes a circular gear one fixed on the outer surface of the rotating tube, a circular gear two meshing on the outer surface of the circular gear one, a motor for driving the circular gear two to rotate installed on the lifting frame, and elastic pads fixed on both sides of the rectangular shell.

[0009] Preferably, the lifting frame is provided with an air blowing mechanism, which includes a cam fixed on the outer surface of the rotating tube, a piston cylinder is fixed on the lifting frame, a piston disc slides inside the piston cylinder, a slide rod is fixed on the piston disc, and the slide rod is slidably connected to the piston cylinder.

[0010] Preferably, an arc-shaped block is fixed to the end of the slide rod away from the piston disc, and a spring is sleeved on the outer surface of the slide rod, with the two ends of the spring fixedly connected to the arc-shaped block and the piston cylinder, respectively.

[0011] Preferably, a heating box is fixed to the top of the calibration box, a heating wire is installed inside the heating box, a hose is connected between the piston cylinder and the heating box, a hose is also connected to the outer surface of the piston cylinder, the other end of the hose is connected to the top of the rotating tube through a rotary joint, a one-way valve is installed on both the hose and the hose, and a nozzle is connected to the rectangular shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The wiping mechanism enables comprehensive and thorough cleaning of reagent bottles, effectively removing residual liquid and dirt. The mechanical friction scrapes away the residual liquid, resulting in a more thorough cleaning effect compared to traditional manual wiping. It can reach every corner inside the bottle, greatly improving the cleanliness of the reagent bottles and laying the foundation for accurate subsequent testing.

[0014] 2. The blowing mechanism can quickly dry the inside of the reagent bottle, ensuring the dryness of the testing environment. This continuous hot airflow can quickly remove residual moisture from the bottle. Compared with natural air drying or simple wiping and drying, it greatly shortens the drying time, effectively avoids the impact of residual moisture on the accuracy of testing, and improves testing efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a chemical instrument calibration device proposed in this utility model;

[0016] Figure 2 This utility model proposes a chemical instrument calibration device. Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 3 This is a front view schematic diagram of the overall structure of a chemical instrument calibration device proposed in this utility model;

[0018] Figure 4 This utility model proposes a chemical instrument calibration device. Figure 3 Enlarged schematic diagram of the structure at point B;

[0019] Figure 5 This is a side view schematic diagram of the mounting plate structure of a chemical instrument calibration device proposed in this utility model.

[0020] In the diagram: 1. Frame; 2. Calibration box; 21. Mounting plate; 22. Moving plate; 23. Clamping block; 31. Mounting frame; 32. Electric push rod; 33. Lifting frame; 34. Rotary tube; 35. Circular gear one; 36. Circular gear two; 37. Rectangular shell; 38. Elastic pad; 41. Cam; 42. Piston cylinder; 43. Piston disc; 44. Slide rod; 45. Arc block; 46. Spring; 47. Heater box; 48. Hose one; 49. Hose two; 410. Nozzle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Reference Figures 1-5 A chemical instrument calibration device includes a frame 1, a calibration box 2 fixed on the top of the frame 1, a calibration mechanism inside the calibration box 2, and a wiping mechanism for cleaning reagent bottles on the calibration box 2. The wiping mechanism includes a mounting frame 31 fixed on the calibration box 2, an electric push rod 32 mounted on the mounting frame 31, a lifting frame 33 fixed to the bottom end of the extension rod of the electric push rod 32, a rotating tube 34 rotatably mounted on the lifting frame 33 via a bearing, and a rectangular shell 37 connected to the bottom end of the rotating tube 34.

[0024] Furthermore, a movable mounting plate 21 is provided on the frame 1. The mounting plate 21 is driven by a cylinder mounted on the frame 1. A movable moving plate 22 is also provided on the mounting plate 21. A cylinder for moving the mounting plate 21 is installed on the mounting plate 21. A clamping block 23 is fixed on the moving plate 22.

[0025] Furthermore, the wiping mechanism also includes a circular gear 35 fixed on the outer surface of the rotating tube 34, a circular gear 36 meshing on the outer surface of the circular gear 35, a motor for driving the circular gear 36 to rotate on the lifting frame 33, and elastic pads 38 fixed on both sides of the rectangular shell 37.

[0026] When a reagent bottle needs to be cleaned, the cylinder installed on the frame 1 drives the movable mounting plate 21, which in turn moves the movable plate 22 on it, precisely transferring the reagent bottle to the area below the wiping mechanism to prepare for cleaning. The cylinder drives the movable plate 22 to move and clamp the reagent bottle accordingly.

[0027] When the electric push rod 32 in the wiping mechanism is activated, its extension rod drives the lifting frame 33 to move downward, so that the rectangular shell 37 connected to the bottom end of the rotating tube 34 can smoothly penetrate into the reagent bottle. At this time, the elastic pads 38 fixed on both sides of the rectangular shell 37 are close to the bottle wall, but the deep cleaning action has not yet started.

[0028] Next, the motor installed on the lifting frame 33 starts, driving the second circular gear 36 to rotate. Since the first circular gear 35 is fixed on the outer surface of the rotating tube 34 and meshes with the second circular gear 36, the rotating tube 34 starts to rotate under the action of gear transmission, which in turn drives the rectangular shell 37 to rotate synchronously. During the rotation, the elastic pad 38 is in close contact with the bottle wall. With the mechanical friction, the residual liquid and dirt attached to the bottle wall, bottle bottom and other parts are powerfully scraped away, realizing a comprehensive and in-depth cleaning of the inside of the reagent bottle and improving the accuracy of the test.

[0029] Based on Example 1, Example 2:

[0030] Reference Figures 1-5 Furthermore, the lifting frame 33 is provided with an air blowing mechanism, which includes a cam 41 fixed on the outer surface of the rotating tube 34, a piston cylinder 42 fixed on the lifting frame 33, a piston disc 43 sliding inside the piston cylinder 42, a slide rod 44 fixed on the piston disc 43, and the slide rod 44 slidably connected to the piston cylinder 42.

[0031] Furthermore, an arc-shaped block 45 is fixed to one end of the slide rod 44 away from the piston disc 43, and a spring 46 is sleeved on the outer surface of the slide rod 44. The two ends of the spring 46 are fixedly connected to the arc-shaped block 45 and the piston cylinder 42, respectively.

[0032] Furthermore, a heating box 47 is fixed to the top of the calibration box 2. A heating wire is installed inside the heating box 47. A hose 48 is connected between the piston cylinder 42 and the heating box 47. A hose 49 is also connected to the outer surface of the piston cylinder 42. The other end of the hose 49 is connected to the top of the rotating pipe 34 through a rotary joint. A one-way valve is installed on both the hose 48 and the hose 49. A nozzle 410 is connected to the rectangular shell 37.

[0033] After the wiping mechanism completes the cleaning task, the rotation of the rotating tube 34 does not stop. The cam 41 fixed on its outer surface rotates synchronously with the rotating tube 34. The cam 41 periodically squeezes the arc-shaped block 45 at one end of the slide rod 44. The slide rod 44 pushes the piston disc 43 to slide inside the piston cylinder 42. When the piston disc 43 moves away from the cam 41, a one-way valve is installed on the hose 48 connecting the piston cylinder 42 and the heating box 47. The warm air heated by the heating wire in the heating box 47 is smoothly drawn into the piston cylinder 42, realizing the intake and preheating of air.

[0034] As the rotating tube 34 continues to rotate, the cam 41 changes the squeezing state of the arc-shaped block 45, and the piston disc 43 moves in the opposite direction. At this time, since the other end of the flexible hose 49 connected to the outer surface of the piston cylinder 42 is connected to the top of the rotating tube 34 through a rotary joint, and the flexible hose 49 is also equipped with a one-way valve, the warm air that has been drawn into the piston cylinder 42 and preheated passes through the flexible hose 49 and the rotating tube 34, and is finally ejected at high speed from the nozzle 410 connected to the rectangular shell 37. The continuous hot airflow directly impacts the inside of the reagent bottle, quickly removes the residual moisture in the bottle, and quickly dries the reagent bottle, effectively avoiding the impact of residual moisture on the accuracy of subsequent testing, greatly shortening the drying time, and greatly improving the testing efficiency compared to natural air drying or simple wiping and drying.

[0035] After the cleaning task is completed, the mounting plate 21 is moved into the calibration box 2 by the cylinder. The calibration is then performed by the calibration mechanism, which includes a high-precision graduated cylinder and a precision balance. The high-precision graduated cylinder is used to accurately measure a known volume of liquid. When calibrating the accuracy of the reagent bottle capacity, a certain amount of liquid is accurately measured through the high-precision graduated cylinder and then poured into the reagent bottle to be calibrated. The precision balance is used to weigh the liquid mass and calculate the volume by combining the liquid density. This is existing technology and will not be described in detail here.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A chemical instrument calibration device, comprising a frame (1), characterized in that, A calibration box (2) is fixed to the top of the frame (1). A calibration mechanism is provided inside the calibration box (2). A wiping mechanism for cleaning reagent bottles is provided on the calibration box (2). The wiping mechanism includes a mounting frame (31) fixed on the calibration box (2). An electric push rod (32) is installed on the mounting frame (31). A lifting frame (33) is fixed to the bottom end of the extension rod of the electric push rod (32). A rotating tube (34) is rotatable on the lifting frame (33) through a bearing. The bottom end of the rotating tube (34) is connected to a rectangular shell (37).

2. The chemical instrument calibration device according to claim 1, characterized in that, The frame (1) is provided with a movable mounting plate (21), which is driven by a cylinder mounted on the frame (1). The mounting plate (21) is also provided with a movable moving plate (22) that moves relative to it. The mounting plate (21) is provided with a cylinder for moving the mounting plate (21), and a clamping block (23) is fixed on the moving plate (22).

3. The chemical instrument calibration device according to claim 1, characterized in that, The wiping mechanism also includes a circular gear one (35) fixed on the outer surface of the rotating tube (34), a circular gear two (36) meshing on the outer surface of the circular gear one (35), a motor for driving the circular gear two (36) to rotate is installed on the lifting frame (33), and elastic pads (38) are fixed on both sides of the rectangular shell (37).

4. The chemical instrument calibration device according to claim 1, characterized in that, The lifting frame (33) is provided with an air blowing mechanism, which includes a cam (41) fixed on the outer surface of the rotating tube (34). A piston cylinder (42) is fixed on the lifting frame (33), and a piston disc (43) slides inside the piston cylinder (42). A slide rod (44) is fixed on the piston disc (43), and the slide rod (44) is slidably connected to the piston cylinder (42).

5. A chemical instrument calibration device according to claim 4, characterized in that, An arc-shaped block (45) is fixed to one end of the slide rod (44) away from the piston disc (43). A spring (46) is sleeved on the outer surface of the slide rod (44). The two ends of the spring (46) are fixedly connected to the arc-shaped block (45) and the piston cylinder (42) respectively.

6. A chemical instrument calibration device according to claim 5, characterized in that, A heating box (47) is fixed on the top of the calibration box (2). A heating wire is installed inside the heating box (47). A hose (48) is connected between the piston cylinder (42) and the heating box (47). A hose (49) is also connected to the outer surface of the piston cylinder (42). The other end of the hose (49) is connected to the top of the rotating tube (34) through a rotary joint. A one-way valve is installed on both the hose (48) and the hose (49). A nozzle (410) is connected to the rectangular shell (37).

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