Analysis titration device for drug inspection

Abstract

The utility model provides an analytical titration device for medicine inspection, and belongs to the technical field of medicine detection devices. Comprising a base, a fixing frame is fixedly connected to the top of the base, a burette is clamped and fixed to one side of the fixing frame, a piston assembly is installed at the bottom of the burette, a convenient assembly is fixedly connected to one side of the piston assembly, and the piston assembly comprises a piston shell fixedly connected to the bottom of the burette; the interior of the piston shell is fixedly connected with a piston body which penetrates through the piston shell and extends to the two sides of the piston shell, and one side of the piston body is fixedly connected with a limiting plate. Through linkage among the air bag, the rubber ring, the fixing head, the connector and the air pipe, the flow velocity of the burette can be controlled by pressing the piston rod with fingers, meanwhile, an operator does not need to lift up an arm and can select a comfortable posture to control the flow velocity, the fatigue feeling of the arm is reduced, and therefore subsequent inspection operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of drug detection devices, in particular to an analytical titration device for drug inspection. Background Art

[0002] The analytical titration device is a device commonly used in chemical analysis. It is mainly used to determine the concentration or content of a certain component in a solution. It can be widely used in the detection and analysis of food, medicine and water quality. The basic principle of titration analysis is: a standard solution of known accurate concentration is added to a beaker containing a solution of the substance to be measured through a burette until the amount of the added solution substance reacts completely according to the stoichiometric relationship. Then, the content of the target component in the substance to be measured is calculated based on the concentration of the added standard solution and the volume consumed. The commonly used burettes are acid burettes and alkaline burettes.

[0003] When using an acid burette, one of the operating processes is that the operator's left fingertips gently and slowly rotate the piston to control the flow rate of the titrant, while the right hand holds the beaker containing the drug to be tested and places it under the burette to receive the titrant dripping from the burette. In order to accelerate the replacement reaction in the beaker, the operator also needs to continuously shake the beaker and maintain this state for a certain period of time until the replacement reaction is completed inside the beaker. At this time, since the operator's left hand is raised for a long time and the piston handle needs to be continuously rotated, it will cause muscle soreness, weaken the mobility of the left hand, and be inconvenient for subsequent detection operations. Therefore, the present application provides an analytical titration device for drug testing to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an analytical titration device for drug inspection to solve the problem that during the existing operation, the fingers and arms of the left hand of the operator suffer from muscle fatigue due to long-term operation.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An analytical titration device for drug testing comprises a base, the top of the base is fixedly connected to a fixing frame, a burette is clamped and fixed on one side of the fixing frame, a piston assembly is installed at the bottom of the burette, and a convenient assembly is fixedly connected to one side of the piston assembly; the piston assembly is used to manually adjust the solution flow rate of the burette, and the convenient assembly is used to cooperate with the piston assembly to realize remote control of the solution flow rate.

[0007] Optionally, the piston assembly includes a piston shell fixedly connected to the bottom of the burette, and a piston body is fixedly connected inside the piston shell and penetrates the piston shell and extends to both sides of the piston shell.

[0008] Optionally, one side of the piston body is fixedly connected to a limit plate, one side of the limit plate is fixedly connected to a connector, the other side of the piston body is threadedly connected to a screw cap, and the interior of the piston body is slidably connected to a piston core.

[0009] Optionally, a movable block is slidably connected to the inside of the piston body, and the piston core includes a movable block slidably connected to the inside of the piston body. The front and rear sides of the movable block are fixedly connected to piston rods slidably connected to the inside of the piston body, and a return spring is sleeved on the outside of the piston rod on the rear side of the movable block.

[0010] Optionally, the piston rod on the front side of the movable block passes through the piston body and extends to the outside of the piston body.

[0011] Optionally, the piston body and the top of the movable block are both provided with inflow holes.

[0012] Optionally, the portable component includes a fixed head fixedly connected to the outside of the connecting head, a side of the fixed head away from the connecting head is fixedly connected to an air tube, and the other side of the air tube is fixedly connected to an air bag.

[0013] Optionally, a rubber ring is fixedly connected to the interior of the fixing head, and the rubber ring is sleeved on the outer wall of the connecting head.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] In the above scheme, through the linkage between the piston rod, the return spring, the piston body and the piston shell, the liquid flow rate of the burette can be adjusted by pressing the piston rod with only one finger, which simplifies the operation process, reduces hand fatigue during the operation, and is more practical.

[0016] Through the linkage between the airbag, rubber ring, fixed head, connecting head and air tube, the flow rate of the burette can be controlled instead of pressing the piston rod with fingers. At the same time, the operator does not need to raise his arm and can choose a comfortable posture to control the flow rate, which reduces arm fatigue and makes subsequent inspection operations more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an analytical titration device for drug testing;

[0019] Figure 2A schematic diagram of the piston structure of an analytical titration device for drug testing;

[0020] Figure 3 A schematic diagram of the internal structure of the piston body of an analytical titration device for drug testing;

[0021] Figure 4 Schematic diagram of the internal structure of the fixed head of the analytical titration device used for drug testing.

[0022] [reference numerals]

[0023] 1. Base; 2. Fixed frame; 3. Burette; 4. Piston shell; 5. Air pipe; 6. Air bag; 7. Piston body; 8. Screw cap; 9. Limit plate; 10. Piston rod; 11. Connector; 12. Movable block; 13. Reset spring; 14. Fixed head; 15. Rubber ring.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0025] The following is a detailed description of an analytical titration device for drug testing provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0026] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0027] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0028] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0029] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0030] like Figures 1 to 3As shown, an embodiment of the utility model provides an analytical titration device for drug inspection, including a base 1, a fixing frame 2 is fixedly connected to the top of the base 1, a burette 3 is clamped and fixed on one side of the fixing frame 2, a piston assembly is installed at the bottom of the burette 3, a convenient assembly is fixedly connected to one side of the piston assembly, the piston assembly is used to manually adjust the solution flow rate of the burette 3, and the convenient assembly is used to cooperate with the piston assembly to realize remote control of the solution flow rate, the piston assembly includes a piston shell 4 fixedly connected to the bottom of the burette 3, the interior of the piston shell 4 is fixedly connected with a piston body 7 that penetrates the piston shell 4 and extends to both sides of the piston shell 4, one side of the piston body 7 is fixedly connected with a limiting plate 9, one side of the limiting plate 9 is fixedly connected with a connector 11, the other side of the piston body 7 is threadedly connected with a rotary cover 8, the interior of the piston body 7 is slidably connected with a piston core, the piston core includes a movable block 12 slidably connected to the interior of the piston body 7, and the front and rear sides of the movable block 12 are fixedly connected with a piston body slidably connected to the piston body The piston rod 10 inside the piston body 7, the piston rod 10 on the rear side of the movable block 12 is sleeved with a return spring 13, the piston rod 10 on the front side of the movable block 12 penetrates the piston body 7 and extends to the outside of the piston body 7, and the tops of the piston body 7 and the movable block 12 are both provided with inflow holes. The advantage of this is that the operator presses the piston rod 10 exposed to the outside of the piston body 7 with a finger, thereby driving the movable block 12 inside the piston body 7 to move, so that the movable block 12 and the flow holes on the piston body 7 correspond to each other, at this time, the upper and lower spaces inside the burette 3 will be connected, and the solution will flow out from the bottom of the burette 3, if the piston rod 10 is no longer pressed, the return spring 13 on the rear side of the movable block 12 will stretch and drive the movable block 12 to reset, so that the upper and lower spaces of the burette 3 are re-closed, so that the flow rate of the liquid inside the burette 3 can be controlled by reciprocating, and the operator only needs one finger to complete this operation, which simplifies the operation process and reduces the hand fatigue caused by the operation process.

[0031] like Figure 1 and Figure 4 As shown, the portable component includes a fixed head 14 fixedly connected to the outside of the connecting head 11, a side of the fixed head 14 away from the connecting head 11 is fixedly connected to the air pipe 5, the other side of the air pipe 5 is fixedly connected to the air bag 6, and the inside of the fixed head 14 is fixedly connected to the rubber ring 15, and the rubber ring 15 is sleeved on the outer wall of the connecting head 11. The advantage of this is that after the fixed head 14 is fixed to the connecting head 11 by the piston rod 10, the rubber ring 10 forms a sealed space at the connection between the fixed head 14 and the connecting head 11. At this time, the air bag 6 is pressed and air is supplied to the inside through the air pipe 5, and the piston rod 10 can be driven inside the space to move toward the inside of the piston body 7, so that there is no need to press the piston rod 10 with fingers, and because the air pipe 5 has both length and softness, the operator can choose a comfortable posture to control the air bag 6, further reducing the hand fatigue generated during operation.

[0032] The working principle provided by the utility model is that through the linkage between the piston rod, the return spring, the piston body and the piston shell, the liquid flow speed of the burette can be adjusted by pressing the piston rod with only one finger, which simplifies the operation process, reduces hand fatigue during the operation, and is more practical.

[0033] Through the linkage between the airbag, rubber ring, fixed head, connecting head and air tube, the flow rate of the burette can be controlled instead of pressing the piston rod with fingers. At the same time, the operator does not need to raise his arm and can choose a comfortable posture to control the flow rate, which reduces arm fatigue and makes subsequent inspection operations more convenient.

[0034] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An analytical titration device for drug testing, characterized in that: It comprises a base, the top of the base is fixedly connected with a fixing frame, one side of the fixing frame is clamped and fixed with a burette, the bottom of the burette is installed with a piston assembly, and one side of the piston assembly is fixedly connected with a convenient assembly; The piston assembly is used to manually adjust the solution flow rate of the burette, and the convenient assembly is used to cooperate with the piston assembly to realize remote control of the solution flow rate.

2. The analytical titration device for drug testing according to claim 1, characterized in that: The piston assembly comprises a piston shell fixedly connected to the bottom of the burette, and a piston body is fixedly connected inside the piston shell and penetrates the piston shell and extends to both sides of the piston shell.

3. The analytical titration device for drug testing according to claim 2, characterized in that: One side of the piston body is fixedly connected to a limit plate, one side of the limit plate is fixedly connected to a connector, the other side of the piston body is threadedly connected to a rotary cover, and the interior of the piston body is slidably connected to a piston core.

4. The analytical titration device for drug testing according to claim 3, characterized in that: The piston core comprises a movable block slidably connected to the inside of the piston body, the front and rear sides of the movable block are fixedly connected to piston rods slidably connected to the inside of the piston body, and a return spring is sleeved on the outside of the piston rod at the rear side of the movable block.

5. The analytical titration device for drug testing according to claim 4, characterized in that: The piston rod at the front side of the movable block penetrates the piston body and extends to the outside of the piston body.

6. The analytical titration device for drug testing according to claim 5, characterized in that: The piston body and the top of the movable block are both provided with inflow holes.

7. The analytical titration device for drug testing according to claim 6, characterized in that: The portable component comprises a fixing head fixedly connected to the outside of the connecting head, a side of the fixing head away from the connecting head is fixedly connected to an air tube, and the other side of the air tube is fixedly connected to an air bag.

8. The analytical titration device for drug testing according to claim 7, characterized in that: A rubber ring is fixedly connected inside the fixing head, and the rubber ring is sleeved on the outer wall of the connecting head.

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