A thermocouple capable of sampling and measuring

Abstract

The present invention discloses a thermocouple capable of sampling and measuring, comprising a dropper tube, a dropper head, and a thermocouple body. The lower end of the dropper tube is connected to a dropper tip, and a connecting plate is fixed above the dropper tube. A sealing gasket is installed on the right side of the dropper tube, and a wire is connected to the right side of the sealing gasket. The dropper head is installed above the connecting plate, and a collar is provided at the connection between the dropper head and the connecting plate. The thermocouple body is placed inside the dropper tube, and clamping strips are fixed on both the left and right sides of the upper end of the thermocouple body. A handle is provided on the upper surface of the thermocouple body. An annular groove is provided in the middle position of the inner wall of the connecting plate, and an outer groove is provided in the middle position of the outer wall of the connecting plate. Vertical grooves are provided on the inner walls of the front and rear sides of the connecting plate. The thermocouple capable of sampling and measuring is provided with a dropper tube, a dropper tip, and a dropper head, which are combined to form a dropper capable of sampling, so that the reaction solution can be directly sampled, and the method is convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of thermocouples, in particular to a thermocouple capable of sampling and measuring. Background Art

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure temperature and convert temperature signals into thermoelectromotive force signals, which are then converted into the temperature of the measured medium through electrical instruments (secondary instruments). The appearance of various thermocouples often varies greatly depending on needs, but their basic structure is roughly the same. They are usually composed of main parts such as thermode, insulating sleeve protection tube and junction box, and are usually used in conjunction with display instruments, recording instruments and electronic regulators.

[0003] Currently in the chemical production industry, it is sometimes necessary to sample part of the target object before measuring the temperature. However, the existing thermocouples are not convenient for sampling and measuring the temperature of the reaction solution. The reaction solution needs to be sampled through a sampling device and then the temperature is measured. This operation is cumbersome and laborious. Therefore, we propose a thermocouple that can be sampled and measured. Summary of the Invention

[0004] The purpose of the present invention is to provide a thermocouple that can be sampled and measured to solve the problem raised in the above background technology that in the chemical production industry, it is sometimes necessary to sample part of the target object before measuring the temperature, and the existing thermocouples are not convenient for sampling and measuring the temperature of the reaction solution. The reaction solution needs to be sampled through a sampling device and then the temperature is measured, which is cumbersome and laborious to operate.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a thermocouple capable of sampling and measuring, comprising a dropper tube, a dropper head and a thermocouple body, the lower end of the dropper tube being connected to a dropper tip, and a connecting plate being fixed above the dropper tube, a sealing gasket being installed on the right side of the dropper tube, and a wire being connected to the right side of the sealing gasket, the dropper head being installed above the connecting plate, and a collar being provided at the connection between the dropper head and the connecting plate, the thermocouple body being placed inside the dropper tube, and clips being fixed on both the left and right sides of the upper end of the thermocouple body, a handle piece being installed on the upper surface of the thermocouple body, an annular groove being provided in the middle of the inner wall of the connecting plate, and an outer groove being provided in the middle of the outer wall of the connecting plate, and vertical grooves being provided on the inner walls of the front and rear sides of the connecting plate.

[0006] Preferably, the dropper tube and the dropper tip are both transparent hollow structures, and the dropper tip forms a communication structure through the dropper tube and the dropper head.

[0007] Preferably, the wire runs through the sealing gasket and the interior of the dropper tube, and the wire and the sealing gasket are tightly fitted.

[0008] Preferably, the structure of the dropper head is an elastic hollow structure, and the material of the dropper head is rubber.

[0009] Preferably, the sizes of the collar and the outer groove match each other, the collar is elastic, and the collar forms a snap-fit ​​structure with the outer groove and the connecting plate.

[0010] Preferably, the size of the clamping strip matches the size of the annular groove and the vertical groove, and the vertical groove and the annular groove are perpendicular to each other.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The thermocouple capable of sampling and measuring is provided with a dropper tube, a dropper tip and a dropper head, which are combined to form a dropper for sampling, so that the reaction solution can be sampled directly without the need for another sampling device. It is easy to use, and the dropper tube and the dropper tip are transparent, which makes it convenient for staff to observe the amount of the sample during sampling.

[0013] 2. By pressing the dropper head, the air inside the dropper barrel and the dropper tip can be discharged, thereby forming a negative pressure state inside the dropper barrel and the dropper tip, which is convenient for automatically sucking the reaction solution to complete the sampling. It is convenient and quick to use, and after one sampling, the reaction solution can partially submerge the thermocouple body, which is convenient for temperature measurement of the thermocouple body;

[0014] 3. The collar is buckled into the outer groove on the outer surface of the connecting plate, and the collar has good elasticity, which facilitates the later disassembly and replacement of the dropper head. The card strip can slide inside the ring groove and the vertical groove to facilitate embedding the thermocouple body inside the dropper tube. The card and sliding connection structure is simple and easy to use. Whether it is early installation or later disassembly, the operation is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 Schematic diagram of the internal cross-sectional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the partially enlarged structure of the thermocouple body and the connecting plate installed in the present invention;

[0018] Figure 4 This is a schematic diagram of the top view of the installation structure of the thermocouple body and the connecting plate of the present invention.

[0019] In the figure: 1. Dropper tube; 2. Dropper tip; 3. Connecting plate; 4. Sealing gasket; 5. Wire; 6. Dropper head; 7. Ring; 8. Thermocouple body; 9. Clip; 10. Handle piece; 11. Ring groove; 12. Outer groove; 13. Vertical groove. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The present invention provides a technical solution: a thermocouple capable of sampling and measuring, comprising a dropper tube 1, a dropper tip 2, a connecting plate 3, a sealing gasket 4, a wire 5, a dropper head 6, a collar 7, a thermocouple body 8, a clamping strip 9, a handle piece 10, an annular groove 11, an outer groove 12 and a vertical groove 13. The lower end of the dropper tube 1 is connected to the dropper tip 2, and the upper part of the dropper tube 1 is fixed with a connecting plate 3, a sealing gasket 4 is installed on the right side of the dropper tube 1, and a wire 5 is connected to the right side of the sealing gasket 4, the wire 5 passes through the sealing gasket 4 and the interior of the dropper tube 1, and the wire 5 and the sealing gasket 4 are tightly fitted together, the wire 5 is arranged to pass through the sealing gasket 4 and out of the dropper tube 1, and the sealing gasket 4 improves the sealing effect of the wire 5 passing through the position to ensure the stability of the internal air pressure of the dropper tube 1 when in use;

[0022] The hopper 6 is provided with a collar 7 and a cam 7 for holding the hopper 6 in a closed position, so that the hopper 6 can be easily inserted into the hopper 6 and the hopper can be easily inserted into the hopper 6.

[0023] The thermocouple body 8 is placed inside the dropper tube 1, and the upper end of the thermocouple body 8 is fixed with a card strip 9 on both sides, and the upper surface of the thermocouple body 8 is installed with a handle piece 10. The middle position of the inner wall of the connecting plate 3 is provided with a ring groove 11, and the middle position of the outer wall of the connecting plate 3 is provided with an outer groove 12. The size of the collar 7 and the outer groove 12 is consistent, and the structure of the collar 7 is an elastic structure, and the collar 7 is provided with a snap-fit ​​structure between the outer groove 12 and the connecting plate 3. The collar 7 is buckled in the outer groove 12 on the outer surface of the connecting plate 3. The sleeve ring 7 has good elasticity, which facilitates the later disassembly and replacement of the dropper head 6. The inner walls of the front and rear sides of the connecting plate 3 are provided with vertical grooves 13. The size of the card strip 9 matches the size of the annular groove 11 and the vertical groove 13, and the vertical groove 13 and the annular groove 11 are perpendicular to each other. The card strip 9 can slide inside the annular groove 11 and the vertical groove 13 to facilitate embedding the thermocouple body 8 inside the dropper tube 1. The card and sliding connection structure is simple and easy to use. Whether it is early installation or later disassembly, its operation is relatively convenient.

[0024] Working principle: For this type of thermocouple that can be sampled and measured, first squeeze and pinch the dropper head 6 in the middle. The dropper head 6 is compressed together by force, thereby expelling some of the air inside the dropper tube 1 and the dropper tip 2. Then immerse the dropper tip 2 into the reaction solution. After releasing the dropper head 6, the dropper tip 2 absorbs part of the reaction solution into the dropper tube 1 to complete the sampling. At this time, the thermocouple body 8 contacts the sample and measures the temperature of the sample. The temperature measurement information can be transmitted to other equipment through the wire 5. The sealing gasket 4 improves the sealing effect of the connection between the wire 5 and the dropper tube 1 to prevent air pressure leakage. When the whole needs to be adjusted When disassembling the device, first pull the collar 7 outward so that the collar 7 leaves the inner part of the outer groove 12, and then pull the dropper head 6 to remove the dropper head 6 from the connecting plate 3, then hold the handle piece 10, rotate the handle piece 10, the handle piece 10 drives the card strip 9 to slide inside the annular groove 11, and rotates a certain angle until the card strip 9 is located at the intersection of the annular groove 11 and the vertical groove 13. At this time, lift the handle piece 10 upward, the handle piece 10 can drive the card strip 9 to slide inside the vertical groove 13, and the thermocouple body 8 can be taken out from the inside of the dropper tube 1, thus completing the use process of the entire thermocouple that can be sampled and measured.

[0025] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A thermocouple capable of sampling and measuring, comprising a dropper tube (1), a dropper head (6) and a thermocouple body (8), characterized in that: The lower end of the dropper tube (1) is connected to a dropper tip (2), and a connecting plate (3) is fixed above the dropper tube (1), a sealing gasket (4) is installed on the right side of the dropper tube (1), and a wire (5) is connected to the right side of the sealing gasket (4), the dropper head (6) is installed above the connecting plate (3), and a collar (7) is provided at the connection between the dropper head (6) and the connecting plate (3), the thermocouple body (8) is placed inside the dropper tube (1), and a clamping strip (9) is fixed on both the left and right sides of the upper end of the thermocouple body (8), a handle piece (10) is installed on the upper surface of the thermocouple body (8), an annular groove (11) is provided at the middle position of the inner wall of the connecting plate (3), and an outer groove (12) is provided at the middle position of the outer wall of the connecting plate (3), and vertical grooves (13) are provided on the inner walls of the front and rear sides of the connecting plate (3); The dropper tube (1) and the dropper tip (2) are both transparent hollow structures, and the dropper tip (2) forms a communication structure through the dropper tube (1) and the dropper head (6); The dropper head is pressed to discharge the air inside the dropper barrel and the dropper tip, so that a negative pressure state is formed inside the dropper barrel and the dropper tip.

2. A thermocouple capable of sampling and measuring according to claim 1, characterized in that: The wire (5) passes through the sealing gasket (4) and the interior of the dropper tube (1), and the wire (5) and the sealing gasket (4) are tightly fitted.

3. The thermocouple capable of sampling and measuring according to claim 1, characterized in that: The structure of the dropper head (6) is an elastic hollow structure, and the material of the dropper head (6) is rubber.

4. A thermocouple capable of sampling and measuring according to claim 1, characterized in that: The sizes of the collar (7) and the outer groove (12) are consistent, the structure of the collar (7) is an elastic structure, and the collar (7) forms a snap-fit ​​structure with the connecting plate (3) through the outer groove (12).

5. The thermocouple capable of sampling and measuring according to claim 1, characterized in that: The size of the clamping strip (9) matches the size of the annular groove (11) and the vertical groove (13), and the vertical groove (13) and the annular groove (11) are perpendicular to each other.

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