Micro-sampling device of reaction calorimeter

Abstract

The utility model discloses a micro-sampling device of a reaction calorimeter, which belongs to the technical field of micro-sampling and comprises a reaction calorimeter body. The micro-sampling pipe body is used for carrying out micro-sampling on the reaction calorimeter body; the liquid measuring cylinder is positioned below the microscale sample injection pipe body and is used for measuring the amount of liquid added by the microscale sample injection pipe body, and the bottom end of the liquid measuring cylinder is communicated with a liquid adding pipe with a valve; the fan is detachably connected to the periphery of the liquid measuring cylinder through a fixing clamp, the fan is communicated with a plurality of blowpipes through a ventilation hopper, and the ends of the blowpipes are located in an inner cavity of the liquid measuring cylinder and used for improving sample injection thoroughness of the liquid measuring cylinder; the counter weight frame is located on the periphery of the reaction calorimeter body, the counter weight frame is connected with the liquid measuring cylinder through a connecting combination, the connecting combination is connected with a plurality of vibration exciters used for exciting the liquid measuring cylinder, and the vibration exciters are used for improving sample injection thoroughness of the liquid measuring cylinder. According to the micro-sampling device of the reaction calorimeter, accurate sampling can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of micro-injection, in particular to a micro-injection device for a reaction calorimeter. Background Art

[0002] The sample injector can place the sample to be tested into the reaction calorimeter for further analysis. When injecting samples, a micro-injection tube is often used for micro-injection. If the amount is insufficient, it can be continued to be added. However, if an excessive amount is added accidentally, the liquid cannot be returned, which will affect the accurate injection and subsequent reaction and analysis.

[0003] After searching, the Chinese patent document (authorization announcement number CN220340129U) has a micro-injector with an anti-blocking structure. The micro-injector aims to solve the technical problem that the micro-injectors in the prior art usually lack an anti-blocking structure and it is difficult to filter the injected liquid to prevent impurities from blocking the micro-injector. The micro-injector includes an injector tube body and a first anti-blocking cylinder movably arranged behind the injector tube body; the rear end inner wall of the injector tube body is threadedly installed with a third external threaded cylinder, the rear end of the third external threaded cylinder is fixedly installed with a first mounting tube, and the rear end outer wall of the first mounting tube is threadedly installed on the front end inner wall of the first anti-blocking cylinder. The micro-injector has an anti-blocking structure and can filter the injected liquid to prevent impurities from blocking the micro-injector. When using a micro-injection tube for micro-injection, you can continue to add when the amount is insufficient, but if you accidentally add too much, you cannot return the liquid, which will affect accurate injection and subsequent reactions and analysis. Utility Model Content

[0004] The utility model aims to provide a micro-injection device for a reaction calorimeter to solve the problems raised in the background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a reaction calorimeter micro-injection device, comprising:

[0006] Reaction calorimeter body;

[0007] A micro-injection tube body is used for micro-injection of the reaction calorimeter body;

[0008] The measuring cylinder is located below the micro-injection tube body and is used to measure the amount of liquid added to the micro-injection tube body. The bottom end of the measuring cylinder is connected to a liquid adding tube with a valve;

[0009] The fan is detachably connected to the outer periphery of the measuring cylinder through a fixing clip. The fan is connected to a plurality of blowing pipes through a ventilation funnel. The ends of the blowing pipes are located in the inner cavity of the measuring cylinder, so as to improve the thoroughness of the injection of the measuring cylinder.

[0010] The counterweight frame is located at the periphery of the reaction calorimeter body. The counterweight frame is connected to the measuring cylinder through a connecting assembly. The connecting assembly is connected with a plurality of exciters for exciting the measuring cylinder to improve the thoroughness of the injection of the measuring cylinder.

[0011] As a preferred embodiment, the connection combination includes:

[0012] A clamp, used to fix the measuring cylinder;

[0013] A plurality of L-shaped connecting plates are used to connect the clamp and the counterweight frame.

[0014] As a preferred embodiment, the top of the reaction calorimeter body is detachably connected to two connecting blocks, the top of the connecting block is connected to a first electric push rod, and the moving part of the first electric push rod is fixedly connected to the micro-injection tube body through an auxiliary block.

[0015] As a preferred embodiment, the outer peripheries of the two auxiliary blocks are connected with second electric push rods.

[0016] As a preferred embodiment, the moving parts of the two second electric push rods are commonly connected to a T-shaped auxiliary plate, and the auxiliary plate is detachably connected to the propulsion part of the micro-injection tube body.

[0017] As a preferred embodiment, the inner wall of the measuring cylinder is detachably connected to the end of the blowing tube via a fixing clamp.

[0018] As a preferred embodiment, the outer circumferences of the microinjection tube body and the measuring cylinder are both provided with scale lines.

[0019] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0020] The reaction calorimeter micro-injection device can temporarily store the liquid injected into the micro-injection tube body by setting a measuring cylinder. If an excessive amount is added, the first electric push rod can be controlled to retract, and the micro-injection tube body can be controlled to extract and return liquid. The outer circumferences of the micro-injection tube body and the measuring cylinder are both provided with scale lines, and double measurement can ensure accuracy.

[0021] The reaction calorimeter micro-injection device can turn on the fan and the vibrator when the measuring liquid cylinder is injecting the sample. The fan assists the blowing pipe to blow air, thereby improving the thoroughness of the liquid discharge from the measuring liquid cylinder and the liquid adding tube. The vibration of the vibrator can also improve the thoroughness of the liquid discharge, thereby achieving accurate injection.

[0022] The reaction calorimeter micro-injection device has a first electric push rod that can control the micro-injection tube to move up and down, and can realize liquid extraction and separation from the measuring liquid cylinder. The extension and retraction of the second electric push rod can realize accurate micro-injection of liquid into the micro-injection tube.

[0023] The reaction calorimeter micro-injection device can achieve precise injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 For the utility model Figure 1 A magnified view of the structure at center A;

[0027] Figure 3 It is a structural schematic diagram of the micro-injection tube body and the second electric push rod of the utility model.

[0028] Description of reference numerals:

[0029] In the figure:

[0030] 1. Reaction calorimeter body; 2. Micro-injection tube body; 3. Measuring cylinder; 4. Adding tube; 5. Fan; 6. Ventilation hopper; 7. Blowing tube; 8. Counterweight frame; 9. Connection assembly; 10. Vibrator; 11. Connection block; 12. First electric push rod; 13. Auxiliary block; 14. Second electric push rod; 15. Auxiliary plate;

[0031] 91. Clamp; 92. Connecting plate. DETAILED DESCRIPTION

[0032] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0033] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0034] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0035] This application is for micro-injection, so the relative proportions of each structure are selected according to actual needs and are not based on the diagram. The diagram is only set for easy observation. If the amount added is very small, very trace, the micro-injection tube body 2 and the measuring liquid cylinder 3 use special equipment with a very small inner diameter but a very long length to achieve micro-injection.

[0036] See also Figures 1 to 3 As shown, a reaction calorimeter micro-injection device, this embodiment includes:

[0037] Reaction calorimeter body 1;

[0038] The micro-injection tube 2 is used for micro-injection of the reaction calorimeter body 1;

[0039] The measuring fluid cylinder 3 is located below the micro-injection tube body 2 and is used to measure the amount of liquid added to the micro-injection tube body 2. The outer peripheries of the micro-injection tube body 2 and the measuring fluid cylinder 3 are both provided with scale lines. The bottom end of the measuring fluid cylinder 3 is connected with a liquid adding tube 4 with a valve. The micro-injection tube body 2 extracts the liquid to be used in advance. When micro-injection is required, the controller is used to accurately control the second electric push rod 14 to contract, so that the liquid from the micro-injection tube body 2 is added to the inner cavity of the measuring fluid cylinder 3. After the liquid amount is appropriate, the valve of the liquid adding tube 4 is opened for micro-injection;

[0040] The fan 5 is detachably connected to the outer periphery of the measuring cylinder 3 through a fixing clip. The fan 5 is connected to a plurality of blowing pipes 7 through a ventilation bucket 6. The ends of the blowing pipes 7 are located in the inner cavity of the measuring cylinder 3 to improve the thoroughness of the injection of the measuring cylinder 3. The inner wall of the measuring cylinder 3 is detachably connected to the ends of the blowing pipes 7 through a fixing clip. The fan 5 assists the blowing pipes 7 in blowing, thereby improving the thoroughness of the liquid discharge of the measuring cylinder 3 and the liquid adding tube 4.

[0041] The counterweight frame 8 is located at the periphery of the reaction calorimeter body 1. The counterweight frame 8 is connected to the measuring cylinder 3 through a connecting assembly 9. The connecting assembly 9 is connected with a plurality of vibrators 10 for exciting the measuring cylinder 3 to improve the thoroughness of the injection of the measuring cylinder 3. The vibration of the vibrator 10 can also improve the thoroughness of the liquid discharge, realize accurate injection, and react and analyze after falling into the reaction calorimeter body 1.

[0042] Connection combination 9 includes:

[0043] A clamp 91, used to fix the measuring cylinder 3;

[0044] A plurality of L-shaped connecting plates 92 are used to connect the clamp 91 and the counterweight frame 8. The connecting plates 92 and the counterweight frame 8 are detachably connected. When there are remedial measures for adding more liquid, the connecting fixture 9 and the measuring cylinder 3 can be removed, and only the micro-injection tube body 2 is used for accurate liquid addition.

[0045] The top of the reaction calorimeter body 1 is detachably connected to two connecting blocks 11, the top of the connecting block 11 is connected to a first electric push rod 12, the moving part of the first electric push rod 12 is connected and fixed to the micro-injection tube body 2 through an auxiliary block 13, the outer periphery of the two auxiliary blocks 13 is connected to a second electric push rod 14, the moving parts of the two second electric push rods 14 are commonly connected to a T-shaped auxiliary plate 15, and the auxiliary plate 15 is detachably connected to the propulsion part of the micro-injection tube body 2.

[0046] The reaction calorimeter body 1, valve, fan 5, vibrator 10, first electric push rod 12, and second electric push rod 14 are all conventional instruments. Their working principles, sizes, and models are irrelevant to the problems solved by the present application, so they are not described in detail. The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0047] How it works

[0048] In the reaction calorimeter micro-injection device, the micro-injection tube body 2 extracts the liquid to be used in advance. When micro-injection is required, the controller is used to accurately control the contraction of the second electric push rod 14 to realize the discharge of liquid from the micro-injection tube body 2 and add it to the inner cavity of the measuring liquid cylinder 3. After the liquid volume is appropriate, the valve of the liquid adding tube 4 is opened to perform micro-injection, and the fan 5 and the vibrator 10 are turned on. The fan 5 assists the blowing tube 7 to blow air, so as to improve the thoroughness of the liquid discharge from the measuring liquid cylinder 3 and the liquid adding tube 4. The vibration of the vibrator 10 can also improve the thoroughness of the liquid discharge, realize accurate injection, and the liquid falls into the reaction calorimeter body 1 for reaction and analysis.

[0049] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reaction calorimeter micro-injection device, characterized in that: include: Reaction calorimeter body (1); A micro-injection tube (2) is used for performing micro-injection on the reaction calorimeter body (1); A measuring cylinder (3) is located below the micro-injection tube body (2) and is used to measure the amount of liquid added to the micro-injection tube body (2). The bottom end of the measuring cylinder (3) is connected to a liquid adding tube (4) with a valve. A fan (5) is detachably connected to the outer periphery of the measuring cylinder (3) via a fixing clip, the fan (5) is connected to a plurality of blowing pipes (7) via a ventilation funnel (6), the ends of the blowing pipes (7) are located in the inner cavity of the measuring cylinder (3), and are used to improve the thoroughness of sample injection of the measuring cylinder (3); The counterweight frame (8) is located at the periphery of the reaction calorimeter body (1), and the counterweight frame (8) is connected to the measuring cylinder (3) through a connecting assembly (9). The connecting assembly (9) is connected to a plurality of exciters (10) for exciting the measuring cylinder (3), so as to improve the thoroughness of sample injection of the measuring cylinder (3).

2. A reaction calorimeter micro-injection device according to claim 1, characterized in that: The connection assembly (9) comprises: A clamp (91) for fixing the measuring cylinder (3); A plurality of L-shaped connecting plates (92) are used to connect the clamp (91) and the counterweight frame (8).

3. A reaction calorimeter micro-injection device according to claim 1, characterized in that: The top of the reaction calorimeter body (1) is detachably connected to two connection blocks (11), the top of the connection block (11) is connected to a first electric push rod (12), and the moving part of the first electric push rod (12) is connected and fixed to the micro-injection tube body (2) via an auxiliary block (13).

4. A reaction calorimeter micro-injection device according to claim 3, characterized in that: The outer circumferences of the two auxiliary blocks (13) are both connected to a second electric push rod (14).

5. A reaction calorimeter micro-injection device according to claim 4, characterized in that: The moving parts of the two second electric push rods (14) are commonly connected to a T-shaped auxiliary plate (15), and the auxiliary plate (15) is detachably connected to the propulsion part of the micro-injection tube body (2).

6. A reaction calorimeter micro-injection device according to claim 1, characterized in that: The inner wall of the measuring cylinder (3) is detachably connected to the end of the blowing pipe (7) via a fixing clamp.

7. A reaction calorimeter micro-injection device according to claim 1, characterized in that: The outer circumferences of the micro-injection tube body (2) and the measuring cylinder (3) are both provided with scale lines.

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