Metering detection device

Abstract

The utility model discloses a metering detection device, and relates to the technical field of metering detection of chemical instruments. The metering detection device comprises a machine body and a tray, a rotating rod is rotatably arranged at the top of the machine body, a bearing plate is fixed to the upper end of the rotating rod, a pressure sensor is arranged between the bearing plate and the bottom of the tray, an electric push rod is arranged on one side of the top of the machine body, and a lifting plate is fixed to the telescopic end of the electric push rod; a plurality of stirring blades are fixed to the lower side of the outer surface of the stirring shaft, a fixed plate is fixed to the upper side of the surface of the stirring shaft, a movable plate is arranged on the lower side of the fixed plate and movably arranged on the stirring shaft in a sleeving mode, a plurality of springs are connected between the top of the movable plate and the fixed plate, and a cover plate is rotationally connected to the bottom of the movable plate. When the stirring shaft and the stirring blades are adjusted to extend into the metering cylinder, the depth of the stirring blades entering the metering cylinder is increased by combining the elastic effect of the spring, and the stirring device is suitable for stirring of metering cylinders of different specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical instrument measurement and detection, in particular to a measurement and detection device. Background Art

[0002] In the process of chemical experiments, it is often necessary to perform quantitative detection of chemical reagents and stir the chemical reagents. Usually, for the measurement of chemical reagents, it is necessary to manually weigh the reagents on a scale and then manually mix and stir the measured reagents, which is time-consuming, labor-intensive, inefficient, and the reagents are not stirred evenly enough.

[0003] Publication No. "CN219284398U" discloses "a chemical instrument metering and detection device". By holding the screw disk and tightening the adjusting screws respectively, the two sets of adjusting screws push the holding plate to move to the side close to the metering cylinder, so that the metering cylinder can be firmly clamped together, which has a certain limiting effect, avoiding the vibration generated when the driving motor is working, causing the metering cylinder to slide and shift, causing the stirring blade to hit the inner wall of the metering cylinder. At the same time, the driving motor can drive the rotating shaft and the stirring blade to rotate, and the reagents inside the metering cylinder are stirred and mixed, so that the reagents are stirred more evenly, avoiding the trouble of manual stirring, and improving the stirring and mixing effect of the reagents.

[0004] The above-mentioned prior art still has the following disadvantages in the specific implementation process:

[0005] Different chemical experiments require the use of measuring cylinders or measuring beakers of different specifications. When the measuring cylinder is high or the amount of chemical reagents to be tested and measured is small, the stirring blades are easily unable to touch the chemical reagents inside the measuring cylinder or measuring beaker due to the fixed sizes of the rotating shaft and the stirring blades and the fixed installation position of the protective cover. The purpose of stirring and mixing cannot be achieved. At the same time, the stirring effect is not good if the stirring blades are only rotated in a fixed direction to achieve stirring.

[0006] In view of the above problems, we propose a measurement and detection device. Utility Model Content

[0007] Technical Solution

[0008] In order to solve the above technical problems, the utility model provides a metering and detection device, including a body and a tray, a rotating rod is rotatably arranged on the top of the body, a carrying plate is fixed on the upper end of the rotating rod, a pressure sensor is arranged between the carrying plate and the bottom of the tray, an electric push rod is arranged on one side of the top of the body, a lifting plate is fixed on the telescopic end of the electric push rod, an upper shaft and a stirring shaft are rotatably arranged on the lifting plate, a plurality of stirring blades are fixed on the lower side of the outer surface of the stirring shaft, a fixed plate is fixed on the upper side of the surface of the stirring shaft, a movable plate is arranged on the lower side of the fixed plate, the movable plate is movably sleeved on the stirring shaft, a plurality of springs are connected between the top of the movable plate and the fixed plate, a cover plate is rotatably connected to the bottom of the movable plate, a transmission assembly is arranged between the upper shaft and the stirring shaft, and a linkage mechanism is arranged between the lower end of the upper shaft and the rotating rod.

[0009] The linkage mechanism includes a lower shaft, a multi-stage telescopic rod, a driving gear and a driven gear. The lower shaft is arranged between the electric push rod and the rotating rod, and the lower shaft is rotatably matched with the machine body. The multi-stage telescopic rod is connected between the upper end of the lower shaft and the upper shaft. The driving gear is arranged on the lower shaft, and the driven gear is arranged on the rotating rod, and the driving gear is meshed with the driven gear.

[0010] A placement groove is provided at the center of the upper surface of the pallet, and two vertical plates are relatively fixed on the upper surface of the pallet. Screws are threaded on the vertical plates, and clamping plates are fixed at the ends of the two screws close to each other, and two limiting telescopic rods are connected between the clamping plates and the vertical plates.

[0011] A shell is fixed on the top of the machine body, the shell cover is arranged outside the driving gear and the driven gear, and the rotating rod and the lower shaft both penetrate the upper surface of the shell, and the rotating rod and the lower shaft both rotate in cooperation with the shell.

[0012] A servo motor is installed on the top of the lifting plate through a bracket, and an output shaft of the servo motor passes through the bracket and is connected to the upper end of the stirring shaft.

[0013] The transmission assembly comprises a pulley and a transmission belt. The two pulleys are respectively arranged on the stirring shaft and the upper shaft, and the transmission belt is arranged between the two pulleys.

[0014] A controller is installed on the front surface of the machine body, and a storage battery is arranged on the front surface of the machine body at one side of the controller.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model facilitates the placement of the metering cylinder by using a tray, and is combined with a pressure sensor to facilitate the collection of the weight of the metering cylinder and the chemical reagent added to the metering cylinder, thereby achieving the purpose of detecting and measuring the chemical reagent;

[0017] At the same time, under the action of the electric push rod, it is convenient to adjust the lifting plate to move downward, combined with the stirring shaft, drive the stirring blade to move inside the metering cylinder, until the cover plate is driven to press on the upper port of the metering cylinder, so as to prevent the chemical reagent from splashing out during the subsequent stirring and mixing process. Under the active cooperation of the movable plate and the stirring shaft, combined with the elastic effect of the spring, the stirring blade can be further adjusted to move toward the bottom of the inner cavity of the metering cylinder, so that the stirring blade moves down to below the liquid level of the chemical reagent inside the metering cylinder, which is convenient for stirring and mixing, and is suitable for the use of metering cylinders of different specifications and the measurement and detection of a small amount of chemical reagents. It solves the problem in the prior art that when the metering cylinder is high or the chemical reagent required for detection and measurement is small, the size of the rotating shaft and the stirring blade is fixed, and the installation position of the protective cover is also fixed, which makes it easy for the stirring blade to fail to touch the chemical reagent inside the metering cylinder or the metering beaker, and thus the stirring and mixing cannot be implemented.

[0018] The servo motor is used to drive the stirring shaft to rotate, and combined with the stirring blades, the purpose of stirring and mixing the chemical reagents is achieved. Under the action of the transmission component, the upper shaft is driven to rotate, and combined with the multi-stage telescopic rod, the lower shaft is driven to rotate synchronously. Under the meshing action of the driving gear and the driven gear, the rotating rod is driven to rotate, and then the tray and the metering cylinder placed on the tray are driven to rotate. While the stirring blades are stirring and mixing, the metering cylinder is driven to rotate in the opposite direction, which effectively improves the stirring and mixing effect of the chemical reagents, and solves the problem that the stirring effect is poor only by relying on the rotation of the stirring blades in a fixed direction in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 for Figure 2 Structural diagram of the middle section AA;

[0022] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 5 for Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0024] The marks in the attached drawings are: 1. body; 2. tray; 3. rotating rod; 4. bearing plate; 5. pressure sensor; 6. electric push rod; 7. lifting plate; 8. upper shaft; 9. stirring shaft; 10. stirring blade; 11. fixed plate; 12. movable plate; 13. spring; 14. cover plate; 15. transmission assembly; 16. lower shaft; 17. multi-stage telescopic rod; 18. driving gear; 19. driven gear; 20. vertical plate; 21. screw; 22. clamping plate; 23. housing; 24. servo motor. DETAILED DESCRIPTION

[0025] This specific embodiment is a measurement and detection device, such as Figure 1-Figure 5 As shown, the metering and detecting device comprises a body 1 and a tray 2, a rotating rod 3 is rotatably arranged on the top of the body 1, a carrying plate 4 is fixed on the upper end of the rotating rod 3, a pressure sensor 5 is arranged between the carrying plate 4 and the bottom of the tray 2, an electric push rod 6 is arranged on one side of the top of the body 1, a lifting plate 7 is fixed on the telescopic end of the electric push rod 6, an upper shaft 8 and a stirring shaft 9 are rotatably arranged on the lifting plate 7, a plurality of stirring blades 10 are fixed on the lower side of the outer surface of the stirring shaft 9, a fixed plate 11 is fixed on the upper side of the surface of the stirring shaft 9, a movable plate 12 is arranged on the lower side of the fixed plate 11, the movable plate 12 is movably sleeved on the stirring shaft 9, a plurality of springs 13 are connected between the top of the movable plate 12 and the fixed plate 11, a cover plate 14 is rotatably connected to the bottom of the movable plate 12, a transmission assembly 15 is arranged between the upper shaft 8 and the stirring shaft 9, and a linkage mechanism is arranged between the lower end of the upper shaft 8 and the rotating rod 3.

[0026] The tray 2 is convenient for placing the metering cylinder, and the pressure sensor 5 is convenient for collecting the weight of the metering cylinder and the chemical reagent added to the metering cylinder, so as to achieve the purpose of detecting and measuring the chemical reagent. At the same time, under the action of the electric push rod 6, it is convenient to adjust the lifting plate 7 to move downward, and combined with the stirring shaft 9, the stirring blade 10 is driven to move inside the metering cylinder until the cover plate 14 is driven to press on the upper port of the metering cylinder to prevent the chemical reagent from splashing out during the subsequent stirring and mixing process. Under the active cooperation of the movable plate 12 and the stirring shaft 9, combined with the elastic action of the spring 13, the stirring blade 10 can be further adjusted to move to the bottom of the inner cavity of the metering cylinder, so that the stirring blade 10 moves down to below the liquid level of the chemical reagent inside the metering cylinder, which is convenient for implementing stirring and mixing, and is suitable for the use of metering cylinders of different specifications and the measurement and detection of a small amount of chemical reagents. It solves the problem that when the metering cylinder is high or the chemical reagent required for detection and measurement is small in the prior art, the size of the rotating shaft and the stirring blade 10 is fixed, and the installation position of the protective cover is also fixed, which makes it easy for the stirring blade 10 to fail to touch the chemical reagent inside the metering cylinder or the metering beaker, and thus the stirring and mixing cannot be implemented.

[0027] The linkage mechanism includes a lower shaft 16, a multi-stage telescopic rod 17, a driving gear 18 and a driven gear 19. The lower shaft 16 is arranged between the electric push rod 6 and the rotating rod 3, and the lower shaft 16 rotates with the body 1. The multi-stage telescopic rod 17 is connected between the upper end of the lower shaft 16 and the upper shaft 8. The driving gear 18 is arranged on the lower shaft 16, and the driven gear 19 is arranged on the rotating rod 3, and the driving gear 18 is meshed with the driven gear 19.

[0028] A placement groove is provided at the center of the upper surface of the tray 2, and two vertical plates 20 are relatively fixed on the upper surface of the tray 2. Screws 21 are threadedly arranged on the vertical plates 20. A clamping plate 22 is fixed at one end of the two screws 21 close to each other, and two limiting telescopic rods are connected between the clamping plate 22 and the vertical plates 20.

[0029] A shell 23 is fixed on the top of the body 1 , and the shell 23 covers the outside of the driving gear 18 and the driven gear 19 . The rotating rod 3 and the lower shaft 16 both penetrate the upper surface of the shell 23 , and the rotating rod 3 and the lower shaft 16 both rotate in cooperation with the shell 23 .

[0030] A servo motor 24 is installed on the top of the lifting plate 7 through a bracket, and the output shaft of the servo motor 24 passes through the bracket and is connected to the upper end of the stirring shaft 9.

[0031] The transmission assembly 15 includes a pulley and a transmission belt. The two pulleys are respectively arranged on the stirring shaft 9 and the upper shaft 8, and the transmission belt is arranged between the two pulleys.

[0032] A controller is installed on the front surface of the machine body 1 , and a battery is arranged on the front surface of the machine body 1 at one side of the controller.

[0033] Example:

[0034] When performing reagent metering detection, the metering cylinder is placed in the placement slot on the tray 2, and then the chemical reagent is added into the metering cylinder. During the process of adding the chemical reagent, the pressure of the metering cylinder and the chemical reagent on it can be collected by the pressure sensor 5, and the collected data is transmitted to the controller, which calculates and analyzes it and displays it on the display screen on the controller, so that the chemical reagent can be quickly detected and measured;

[0035] When the reagent solution needs to be mixed and stirred, first adjust the screws 21 on both sides to rotate in the direction of the metering cylinder, and combine with the limit telescopic rod to drive the clamping plate 22 to stably approach the direction of the metering cylinder until the two clamping plates 22 are clamped on the outer wall of the metering cylinder, and the metering cylinder is limited and clamped to ensure the stability of the metering cylinder;

[0036] Secondly, the electric push rod 6 is started, and the lifting plate 7 is driven to move downward through the contraction of the electric push rod 6. Under the action of the stirring shaft 9, the stirring blade 10 is driven to move toward the inner cavity of the metering cylinder below. As the stirring blade 10 moves downward, the cover plate 14 is first pressed on the upper end of the metering cylinder, and the movable plate 12 and the stirring shaft 9 are combined to drive the stirring shaft 9 and the stirring blade 10 to continue to move downward. Through the downward movement of the stirring shaft 9, the fixed plate 11 is driven to move synchronously. Under the action of the cover plate 14 and the movable plate 12, the spring 13 is squeezed, so that the cover plate 14 is stably pressed on the metering cylinder. The upper end of the cylinder is moved down until the stirring blade 10 moves down to the lower side of the liquid surface of the chemical reagent inside the metering cylinder, so that the stirring blade 10 completely enters the lower side of the liquid surface of the chemical reagent, which is convenient for subsequent stirring and mixing, and solves the problem that different chemical experiments in the prior art need to use different specifications of measuring cylinders or measuring beakers. When the measuring cylinder is high or the chemical reagents required for detection and measurement are small, since the sizes of the rotating shaft and the stirring blade 10 are fixed, the installation position of the protective cover is also fixed, and it is easy for the stirring blade 10 to fail to touch the chemical reagents inside the metering cylinder, and thus the stirring and mixing cannot be implemented;

[0037] Then, the servo motor 24 is started, and the stirring shaft 9 is driven to rotate by the servo motor 24. Under the rotation cooperation of the cover plate 14 and the movable plate 12, the stirring blade 10 is driven to rotate stably to stir the chemical reagent inside the metering cylinder;

[0038] During this process, under the action of the transmission assembly 15, the upper shaft 8 is driven to rotate synchronously in the same direction. Under the action of the upper shaft 8, combined with the multi-stage telescopic rod 17, the lower shaft 16 and the driving gear 18 are driven to rotate synchronously. Under the meshing action of the driving gear 18 and the driven gear 19, the rotating rod 3 is driven to rotate synchronously in the opposite direction, and then the clamped metering cylinder is driven to rotate in the opposite direction to the stirring direction of the stirring blade 10, which effectively improves the stirring and mixing effect of the chemical reagent and solves the problem that the stirring effect is poor only by relying on the rotation of the stirring blade 10 in a fixed direction in the prior art.

[0039] It should be further explained that the installation structure, connection method or setting method of each component in the utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented. At the same time, the pressure sensor 5, the electric push rod 6 and the servo motor 24 in the utility model are all purchased on the market, and those skilled in the art can install and use them according to the requirements;

[0040] The machine body 1, the controller and the storage battery arranged on the machine body 1 in the present invention are all prior arts disclosed in the comparative documents, and their internal structures and usage methods are not described in detail here.

[0041] All technical features in this embodiment can be freely combined according to actual needs.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A measuring and detecting device, comprising a body (1) and a tray (2), characterized in that: The top of the machine body (1) is provided with a rotating rod (3) for rotation, a bearing plate (4) is fixed to the upper end of the rotating rod (3), a pressure sensor (5) is provided between the bearing plate (4) and the bottom of the tray (2), an electric push rod (6) is provided on one side of the top of the machine body (1), a lifting plate (7) is fixed to the telescopic end of the electric push rod (6), an upper shaft (8) and a stirring shaft (9) are rotatably provided on the lifting plate (7), a plurality of stirring blades (10) are fixed to the lower side of the outer surface of the stirring shaft (9), and the stirring A fixed plate (11) is fixed on the upper side of the surface of the shaft (9), a movable plate (12) is arranged on the lower side of the fixed plate (11), the movable plate (12) is movably sleeved on the stirring shaft (9), a plurality of springs (13) are connected between the top of the movable plate (12) and the fixed plate (11), a cover plate (14) is rotatably connected to the bottom of the movable plate (12), a transmission assembly (15) is arranged between the upper shaft (8) and the stirring shaft (9), and a linkage mechanism is arranged between the lower end of the upper shaft (8) and the rotating rod (3).

2. A measuring and detecting device according to claim 1, characterized in that: The linkage mechanism comprises a lower shaft (16), a multi-stage telescopic rod (17), a driving gear (18) and a driven gear (19); the lower shaft (16) is arranged between the electric push rod (6) and the rotating rod (3), and the lower shaft (16) is rotationally matched with the machine body (1); the multi-stage telescopic rod (17) is connected between the upper end of the lower shaft (16) and the upper shaft (8); the driving gear (18) is arranged on the lower shaft (16), and the driven gear (19) is arranged on the rotating rod (3), and the driving gear (18) is meshed with the driven gear (19).

3. A measuring and detecting device according to claim 2, characterized in that: A placement groove is provided at the center of the upper surface of the tray (2), and two vertical plates (20) are relatively fixed on the upper surface of the tray (2). The vertical plates (20) are threaded with screw rods (21), and clamping plates (22) are fixed at the ends of the two screw rods (21) close to each other, and two limiting telescopic rods are connected between the clamping plates (22) and the vertical plates (20).

4. A measuring and detecting device according to claim 3, characterized in that: A shell (23) is fixed on the top of the machine body (1), and the shell (23) is arranged to cover the outside of the driving gear (18) and the driven gear (19), and the rotating rod (3) and the lower shaft (16) both penetrate the upper surface of the shell (23), and the rotating rod (3) and the lower shaft (16) both rotate in cooperation with the shell (23).

5. A measuring and detecting device according to claim 4, characterized in that: A servo motor (24) is installed on the top of the lifting plate (7) through a bracket, and an output shaft of the servo motor (24) passes through the bracket and is connected to the upper end of the stirring shaft (9).

6. A measuring and detecting device according to claim 5, characterized in that: The transmission assembly (15) comprises a pulley and a transmission belt. The two pulleys are respectively arranged on the stirring shaft (9) and the upper shaft (8), and the transmission belt is arranged between the two pulleys.

7. A measuring and detecting device according to claim 6, characterized in that: A controller is installed on the front surface of the machine body (1), and a storage battery is arranged on the front surface of the machine body (1) on one side of the controller.

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