Titration device for food inspection and analysis

Abstract

The utility model belongs to the technical field of food inspection, discloses a food inspection, analysis and titration device, and aims to solve the problems that the angle of an inclined table of the conventional analysis and titration device is fixed, so that the up-down movement amplitude of a three-jaw chuck is fixed, the shaking strength cannot be adjusted, and the conventional analysis and titration device is inconvenient to use. A three-jaw chuck is arranged above the operation table, a rotating shaft is rotationally installed on the top face of the operation table, a driving device for driving the rotating shaft to rotate is arranged on the operation table, a movable pipe is fixedly installed on the bottom face of the three-jaw chuck, the upper end of the rotating shaft is located in the movable pipe, and a limiting structure is arranged between the movable pipe and the rotating shaft. The angle of the movable plate is controlled through the adjusting device so that the amplitude of vertical movement of the three-jaw chuck can be controlled, the deformation quantity of the tension spring can be adjusted by adjusting the telescopic device so that the stress of vertical movement of the three-jaw chuck can be controlled, and therefore the three-jaw chuck is more stable during operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of food inspection, and in particular relates to a food inspection and analysis titration device. Background Art

[0002] Titration is a common method for food and drug testing. During titration, a standard titration solution is placed in a burette and added dropwise vertically to a conical flask or beaker containing a certain amount of the analyte solution. Since the reaction speed during titration is slow, it is necessary to shake the conical flask or beaker from time to time to speed up the reaction.

[0003] The traditional method is for the inspector to shake the conical flask by hand. This long-term shaking process can easily lead to wrist fatigue, increasing the inspector's workload. In addition, the standard titration solution in the burette may drip onto the inner wall of the conical flask or beaker during the shaking process and fail to react with the analyte solution, resulting in certain test errors and affecting test accuracy.

[0004] With the development of science and technology, in the existing technology, there is a prior art with publication number CN219978221U, which discloses a food and drug inspection and analysis titration device. The angle of the tilting table of the prior art is fixed, so that the amplitude of the up and down movement of the three-jaw chuck is fixed, and the shaking intensity cannot be adjusted, which is inconvenient to use. Utility Model Content

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a food inspection and analysis titration device, which controls the angle of the movable plate through an adjustment device, thereby controlling the amplitude of the up and down movement of the three-jaw chuck. By adjusting the telescopic device, the deformation of the tension spring can be adjusted, thereby controlling the force applied to the up and down movement of the three-jaw chuck, making the present invention more stable during operation.

[0006] The technical solution adopted by this food inspection and analysis titration device to solve its technical problems is:

[0007] A food inspection and analysis titration device is provided, including an operating table, a three-jaw chuck is provided above the operating table, a rotating shaft is rotatably installed on the top surface of the operating table, a driving device for driving the rotating shaft to rotate is provided on the operating table, a movable tube is fixedly installed on the bottom surface of the three-jaw chuck, the upper end of the rotating shaft is located in the movable tube, a limiting structure is provided between the movable tube and the rotating shaft, a connecting ring is rotatably installed on the outer periphery of the movable tube, a tension spring is provided between the bottom surface of the connecting ring and the top surface of the operating table, the two ends of the tension spring are respectively fixedly connected to the top surface of the operating table and the bottom surface of the connecting ring, a movable plate is provided above the operating table, a through groove is opened on the movable plate, the tension spring passes through the through groove, one side of the movable plate is hingedly connected to the vertical plate, the bottom surface of the vertical plate is fixedly connected to the top surface of the operating table, an adjusting device for adjusting the angle of the movable plate is provided on the operating table, the bottom surface of the three-jaw chuck is fixedly connected to the upper end of the telescopic device, and the lower end of the telescopic device is provided with a rolling ball structure.

[0008] Furthermore, the driving device is a motor, which is fixedly mounted on the bottom surface of the operating table. The output shaft of the motor passes through the operating table and is rotatably connected. The output shaft of the motor is fixedly connected to the lower end of the rotating shaft.

[0009] Furthermore, the motor is a servo motor.

[0010] Furthermore, the limiting structure consists of a limiting groove and a limiting block. The limiting groove is opened on the outer periphery of the rotating shaft, and the limiting block is fixedly installed on the inner wall of the movable tube. The limiting block is located in the limiting groove and can slide up and down along the limiting groove.

[0011] Furthermore, the limiting structures are provided in two groups.

[0012] Furthermore, the adjusting device is an electric push rod, the movable end of the electric push rod is embedded in the operating table, and the upper end of the electric push rod is hingedly mounted with a contact plate, and the top surface of the contact plate contacts the bottom surface of the movable plate.

[0013] Furthermore, the telescopic device consists of a screw and an inner screw tube. The upper end of the screw is fixedly connected to the bottom surface of the three-jaw chuck, the lower end of the screw is located in the inner screw tube and threadedly engaged, and the ball structure is arranged at the lower end of the inner screw tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. A food inspection and analysis titration device exemplified by the present invention installs and fixes a conical flask or beaker containing a certain amount of analyte solution through a three-jaw chuck, and the driving device can drive the rotating shaft to rotate, and then the movable tube can be driven to rotate through the limiting structure, and finally the three-jaw chuck is driven to rotate. Under the influence of the tension of the tension spring, the rolling ball structure is always in contact with the top surface of the movable plate, and the three-jaw chuck can be moved up and down, so that the analyte solution and the titration solution are fully mixed. Compared with the prior art, the present invention controls the angle of the movable plate through the adjusting device, and thus can control the amplitude of the up and down movement of the three-jaw chuck. By adjusting the telescopic device, the deformation of the tension spring can be adjusted, and then the force applied to the up and down movement of the three-jaw chuck can be controlled, making the present invention more stable during operation.

[0016] 2. A food inspection and analysis titration device according to an example of the present invention is capable of turning on the motor and rotating the output shaft of the motor to drive the rotating shaft to rotate. The driving device has a simple structure and is easy to use.

[0017] 3. In a food inspection and analysis titration device exemplified in the present invention, the servo motor has more precise speed control compared to other types of motors.

[0018] 4. In a food inspection and analysis titration device exemplified in the present invention, the limiting groove and the limiting block can guide the up and down movement of the movable tube, and the rotating shaft can drive the movable tube to rotate through the limiting groove and the limiting block.

[0019] 5. In a food inspection and analysis titration device exemplified in the present invention, the two sets of limiting structures can increase the maximum torque that can be tolerated between the rotating shaft and the movable tube, thereby increasing the stability of the present invention.

[0020] 6. A food inspection and analysis titration device according to an example of the present invention can drive the contact plate to move up and down by controlling the extension and retraction of the electric push rod, thereby adjusting the position of the contact plate. The electric push rod and the contact plate can support the right side of the movable plate, thereby adjusting the angle of the movable plate up and down.

[0021] 7. A food inspection and analysis titration device according to an example of the present invention rotates the inner spiral tube, which cooperates with the screw thread to adjust the position of the inner spiral tube, thereby adjusting the length of the telescopic device. The adjustment device has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] In the figure: 1 operating table; 2 three-jaw chuck; 3 rotating shaft; 4 movable tube; 5 connecting ring; 6 tension spring; 7 movable plate; 8 through slot; 9 vertical plate; 10 motor; 11 limit slot; 12 limit block; 13 electric push rod; 14 contact plate; 15 screw; 16 inner screw tube. DETAILED DESCRIPTION

[0025] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] like Figure 1 As shown, a food inspection and analysis titration device includes an operating table 1, a three-jaw chuck 2 is provided above the operating table 1, a rotating shaft 3 is rotatably mounted on the top surface of the operating table 1, and a driving device for driving the rotating shaft 3 to rotate is provided on the operating table 1. A movable tube 4 is fixedly mounted on the bottom surface of the three-jaw chuck 2, the upper end of the rotating shaft 3 is located in the movable tube 4, a limiting structure is provided between the movable tube 4 and the rotating shaft 3, a connecting ring 5 is rotatably mounted on the outer periphery of the movable tube 4, and a tension spring 6 is provided between the bottom surface of the connecting ring 5 and the top surface of the operating table 1. The rotating shaft 3 passes through the tension spring 6, and the two ends of the tension spring 6 are fixedly connected to the top surface of the operating platform 1 and the bottom surface of the connecting ring 5 respectively. A movable plate 7 is provided above the operating platform 1. The movable plate 7 is provided with a through slot 8. The tension spring 6 passes through the through slot 8. One side of the movable plate 7 is hingedly connected to the vertical plate 9. The bottom surface of the vertical plate 9 is fixedly connected to the top surface of the operating platform 1. The operating platform 1 is provided with an adjustment device for adjusting the angle of the movable plate 7. The bottom surface of the three-jaw chuck 2 is fixedly connected to the upper end of the telescopic device, and the lower end of the telescopic device is provided with a rolling ball structure. The conical flask or beaker containing a certain amount of analyte solution is installed and fixed by the three-jaw chuck 2, and the driving device can drive the rotating shaft 3 to rotate, and then the movable tube 4 can be driven to rotate through the limiting structure, and finally the three-jaw chuck 2 is driven to rotate. Under the influence of the tension of the tension spring 6, the rolling ball structure is always in contact with the top surface of the movable plate 7, and the three-jaw chuck 2 can be moved up and down, so that the analyte solution and the titration solution are fully mixed. Compared with the prior art, the utility model controls the angle of the movable plate 7 through the adjustment device, and then controls the amplitude of the up and down movement of the three-jaw chuck 2. By adjusting the telescopic device, the deformation of the tension spring 6 can be adjusted, and then the force of the up and down movement of the three-jaw chuck 2 can be controlled, so that the utility model is more stable during operation.

[0028] like Figure 1 As shown, further preferably, the driving device is a motor 10, which is fixedly mounted on the bottom surface of the operating table 1. The output shaft of the motor 10 passes through the operating table 1 and is rotatably connected. The output shaft of the motor 10 is fixedly connected to the lower end of the rotating shaft 3. When the motor 10 is turned on, the output shaft of the motor 10 rotates to drive the rotating shaft 3 to rotate. The driving device has a simple structure and is easy to use.

[0029] like Figure 1 As shown, further preferably, the motor 10 is a servo motor. Compared with other types of motors, the servo motor has more precise control over speed.

[0030] like Figure 1 As shown, further preferably, the limiting structure is composed of a limiting groove 11 and a limiting block 12. The limiting groove 11 is opened on the outer periphery of the rotating shaft 3, and the limiting block 12 is fixedly installed on the inner wall of the movable tube 4. The limiting block 12 is fixedly installed at the bottom of the inner wall of the movable tube 4, which can increase the range of motion of the movable tube 4. The limiting block 12 is located in the limiting groove 11 and can slide up and down along the limiting groove 11. The limiting groove 11 and the limiting block 12 can guide the up and down movement of the movable tube 4, and the rotating shaft 3 can drive the movable tube 4 to rotate through the limiting groove 11 and the limiting block 12.

[0031] like Figure 1 As shown, further preferably, the limiting structure is provided with two groups. The two groups of limiting structures can increase the maximum torque that can be borne between the rotating shaft 3 and the movable tube 4, thereby increasing the stability of the utility model.

[0032] like Figure 1 As shown, further preferably, the adjustment device is an electric push rod 13, the movable end of the electric push rod 13 is embedded and installed on the operating table 1, and the upper end of the electric push rod 13 is hingedly installed with a contact plate 14, and the top surface of the contact plate 14 contacts the bottom surface of the movable plate 7. By controlling the extension and contraction of the electric push rod 13, the contact plate 14 can be driven to move up and down, and then the position of the contact plate 14 can be adjusted. The electric push rod 13 and the contact plate 14 can support the right side of the movable plate 7, thereby adjusting the angle of the movable plate 7 up and down.

[0033] like Figure 1 As shown, further preferably, the telescopic device is composed of a screw 15 and an inner screw tube 16. The upper end of the screw 15 is fixedly connected to the bottom surface of the three-jaw chuck 2, and the lower end of the screw 15 is located in the inner screw tube 16 and threadedly engaged. The ball structure is provided at the lower end of the inner screw tube 16. By rotating the inner screw tube 16, the inner screw tube 16 and the screw 15 are threadedly engaged, and the position of the inner screw tube 14 can be adjusted, thereby adjusting the length of the telescopic device. The adjustment device has a simple structure and is easy to use.

[0034] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0035] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A food inspection and analysis titration device, comprising an operating table (1), a three-jaw chuck (2) being provided above the operating table (1), and characterized in that: The top surface of the operating table (1) is rotatably mounted with a rotating shaft (3), and a driving device for driving the rotating shaft (3) to rotate is provided on the operating table (1). A movable tube (4) is fixedly mounted on the bottom surface of the three-jaw chuck (2). The upper end of the rotating shaft (3) is located in the movable tube (4). A limited position structure is provided between the movable tube (4) and the rotating shaft (3). A connecting ring (5) is rotatably mounted on the outer periphery of the movable tube (4). A tension spring (6) is provided between the bottom surface of the connecting ring (5) and the top surface of the operating table (1). The two ends of the tension spring (6) are respectively fixedly connected to the operating table (1). The top surface of the operating table (1) and the bottom surface of the connecting ring (5) are connected. A movable plate (7) is provided above the operating table (1). A through groove (8) is provided on the movable plate (7). A tension spring (6) passes through the through groove (8). One side of the movable plate (7) is hingedly connected to a vertical plate (9). The bottom surface of the vertical plate (9) is fixedly connected to the top surface of the operating table (1). An adjusting device for adjusting the angle of the movable plate (7) is provided on the operating table (1). The bottom surface of the three-jaw chuck (2) is fixedly connected to the upper end of the telescopic device. The lower end of the telescopic device is provided with a rolling ball structure.

2. A food inspection and analysis titration device according to claim 1, characterized in that: The driving device is a motor (10), which is fixedly mounted on the bottom surface of the operating table (1). The output shaft of the motor (10) passes through the operating table (1) and is rotatably connected. The output shaft of the motor (10) is fixedly connected to the lower end of the rotating shaft (3).

3. A food inspection and analysis titration device according to claim 2, characterized in that: The motor (10) is a servo motor.

4. A food inspection and analysis titration device according to claim 1, characterized in that: The limiting structure is composed of a limiting groove (11) and a limiting block (12). The limiting groove (11) is opened on the outer periphery of the rotating shaft (3). The limiting block (12) is fixedly installed on the inner wall of the movable tube (4). The limiting block (12) is located in the limiting groove (11) and can slide up and down along the limiting groove.

5. A food inspection and analysis titration device according to claim 4, characterized in that: The limiting structures are provided in two groups.

6. A food inspection and analysis titration device according to claim 1, characterized in that: The adjusting device is an electric push rod (13), the movable end of the electric push rod (13) is embedded in the operating table (1), and the upper end of the electric push rod (13) is hingedly mounted with a contact plate (14), and the top surface of the contact plate (14) contacts the bottom surface of the movable plate (7).

7. A food inspection and analysis titration device according to claim 1, characterized in that: The telescopic device is composed of a screw (15) and an inner screw tube (16). The upper end of the screw (15) is fixedly connected to the bottom surface of the three-jaw chuck (2). The lower end of the screw (15) is located in the inner screw tube (16) and is threadedly engaged. The ball structure is arranged at the lower end of the inner screw tube (16).

Images