CN219328531U

CN219328531U - Shock-resistant thermocouple

Info

Publication number: CN219328531U
Application number: CN202320652556.3U
Authority: CN
Inventors: 黄正佳
Original assignee: Changsha Forside Automation Technology Co ltd
Current assignee: Changsha Forside Automation Technology Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-07-11
Anticipated expiration: 2033-03-29

Abstract

The utility model relates to an anti-vibration thermocouple, which comprises a detection part and a sheath, wherein the detection part is arranged in the sheath, the detection part comprises a hollow pipe, the hollow pipe is hollow, a sliding bolt is arranged on the hollow pipe in a sliding way, and the sliding bolt can slide on the wall surface of the hollow pipe; according to the utility model, the filler is arranged in the armored thermocouple, so that the coupling wire can be kept motionless in the armored thermocouple to prevent the coupling wire from moving, and meanwhile, the coupling wire can be kept motionless in the armored thermocouple under the vibration condition to better receive signals.

Description

Shock-resistant thermocouple

Technical Field

The utility model relates to the field of thermocouples, in particular to an anti-vibration thermocouple.

Background

Thermocouples are commonly used temperature measuring elements in temperature measuring instruments, which directly measure temperature and convert temperature signals into thermoelectromotive signals, which are converted into the temperature of the medium to be measured by an electrical instrument (secondary instrument). The external shapes of various thermocouples are quite different according to the needs, but the basic structures of the thermocouples are approximately the same, and the thermocouples are generally composed of main parts such as a hot electrode, an insulating sleeve protection tube, a junction box and the like, and are generally matched with a display instrument, a recording instrument and an electronic regulator for use;

at present, the thermocouple can lead to measuring accuracy inaccuracy due to not antidetonation in the detection process, and lead to the durability of product to reduce under the vibrations condition, and life cycle shortens.

Disclosure of Invention

The present utility model is directed to a vibration-resistant thermocouple, which solves the problems set forth in the background art.

The utility model solves the technical problems by adopting the following technical scheme:

the utility model provides a thermocouple of antidetonation type, includes detection portion, sheath, detection portion installs inside the sheath, detection portion includes the hollow tube, the hollow tube sets up to hollow, it is equipped with sliding bolt to slide on the hollow tube, sliding bolt can slide on the hollow tube wall, sliding bolt with fixed being equipped with the spring between the hollow tube end wall, the spring housing is in on the hollow tube, hollow tube one end is fixed to be equipped with the armor thermocouple, the inside even silk that is equipped with of armor thermocouple, the inside filler that is equipped with of armor thermocouple, the filler can make even silk is in the inside keep motionless of armor thermocouple, prevent its drunkenness, even silk extends to inside the hollow tube, even silk output is connected with K type compensating wire through the mode of crimping, the hollow tube with K type compensating wire crimping department is wrapped up through the asbestos pipe, prevent that crimping department from splitting, K type compensating wire runs through from the hollow tube other end to hollow tube exit is through PTFE winding, will K type compensating wire with hollow tube inside is equipped with the even silk, prevent that K type compensating wire from buckling, thereby the hollow tube is equipped with the inside to lead to the fracture, thereby prevent that the hollow tube from buckling, the inside the clearance is in the hollow tube from leading to the fact the take off, the hollow tube is in the fracture, prevent that the time is in the mode of bending.

Preferably, a movable thread is arranged on one side, close to the spring, of the sliding bolt, the sliding bolt is installed on the inner side wall surface of the sheath through the movable thread, and then the detection part can be installed inside the sheath.

Preferably, the filler is MgO.

Preferably, the coupling wire is in a V shape, and two ends of the coupling wire are respectively connected with the K-type compensation wire.

Preferably, an external thread is arranged at the outer wall of the sheath.

The utility model has the advantages and positive effects that:

1. according to the utility model, the armored thermocouple can be always pushed by the elasticity of the spring, so that the bottom end of the armored thermocouple is always contacted with the bottom side of the inner wall of the sheath, signals can be better received, and the signals can be more accurately received when the engine vibrates, so that insufficient signal receiving caused by vibration can be avoided.

2. According to the utility model, the filler is arranged in the armored thermocouple, so that the coupling wire can be kept motionless in the armored thermocouple to prevent the coupling wire from moving, and meanwhile, the coupling wire can be kept motionless in the armored thermocouple under the vibration condition to better receive signals.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the front view of the whole structure of a vibration-resistant thermocouple according to the present utility model;

FIG. 2 is a schematic diagram of the detecting portion in FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the sheath of FIG. 1 according to the present utility model;

FIG. 4 is a schematic view of the enlarged structure of FIG. 2A according to the present utility model;

fig. 5 is an enlarged view of the internal structure of fig. 2B according to the present utility model.

The index marks in the drawings are as follows: 10. a detection unit; 11. a sheath; 12. a hollow tube; 13. a spring; 14. a sliding bolt; 15. a movable thread; 16. an anti-folding spring; 17. a K-type compensation wire; 18. an external thread; 19. armoured thermocouple; 20. and (3) coupling wires.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

The utility model will now be described in detail with reference to fig. 1-5, wherein for convenience of description, the orientations described below are now defined as follows: the vertical, horizontal, vertical, front-to-back directions described below are the same as the vertical, horizontal, vertical, and horizontal directions of the view of fig. 1. Fig. 1 is a front view of the device of the present utility model, and the direction of fig. 1 is the same as the vertical, horizontal, vertical, front-to-back, horizontal, and horizontal directions of the device of the present utility model.

Embodiments of the utility model are described in further detail below with reference to the attached drawing figures:

referring to fig. 1-5, an embodiment of the present utility model is provided: the utility model provides a thermocouple of antidetonation type, includes detection portion 10, sheath 11, detection portion 10 installs inside sheath 11, detection portion 10 includes hollow tube 12, hollow tube 12 sets up to hollow, slide on the hollow tube 12 is equipped with slide bolt 14, slide bolt 14 can slide on hollow tube 12 wall, slide bolt 14 with fixed spring 13 that is equipped with between hollow tube 12 one end wall, spring 13 cover is in on the hollow tube 12, hollow tube 12 one end is fixed and is equipped with armor thermocouple 19, armor thermocouple 19 inside is equipped with even silk 20, armor thermocouple 19 inside is equipped with the filler, the filler can make even silk 20 keep motionless in armor thermocouple 19 inside, prevents its drunkenness, even silk 20 extends to inside hollow tube 12, even silk 20 output is connected with K type compensating wire 17 through the crimping mode, hollow tube 12 with K type compensating wire 17 presss from the pipe asbestos parcel, prevent the fracture in crimp department, K type compensating wire 17 cover is in hollow tube 12 from the hollow tube 17 is in the crimp department, thereby prevent that the expansion joint from leading to the fact the hollow tube 17 from rolling over the hollow tube 17 is in the hollow tube 17 the expansion joint is in the hollow tube 17 is in the time-out of leading to the expansion joint, the wire 17 is in the hollow tube 17 is in the wire 17 is in the pipe 17 is broken and is prevented to be in the pipe 17 is in the pipe 17 to the compression joint type to the wire diameter.

In addition, in one embodiment, a movable thread 15 is provided on the side of the sliding bolt 14 near the spring 13, and the sliding bolt 14 is mounted on the inner side wall surface of the sheath 11 through the movable thread 15, so that the detecting portion 10 can be mounted inside the sheath 11.

In addition, in one embodiment, the filler is MgO.

In addition, in one embodiment, the coupling wire 20 has a V shape, and two ends are respectively connected to the K-type compensation wires 17.

In addition, in one embodiment, external threads 18 are provided at the outer wall of the sheath 11.

The specific implementation is as follows; after the detection part 10 is installed inside the sheath 11, the detection part is connected with an engine through external threads 18 on the sheath 11, the armored thermocouple 19 can be pushed through the elasticity of the spring 13, the bottom end of the armored thermocouple 19 is always contacted with the bottom side of the inner wall of the sheath 11, better heat conduction is achieved, vibration of the engine is received more accurately, measurement data errors cannot be caused by vibration, secondly, a gap between the K-type compensation wire 17 and the hollow tube 12 is filled by winding the PTFE gasket at the outlet of the hollow tube 12, the K-type compensation wire 17 is prevented from sliding in the hollow tube 12, and therefore the K-type compensation wire 17 and the coupling wire 20 are prevented from tearing due to vibration or external pulling force, meanwhile, the crimping part of the hollow tube 12 and the K-type compensation wire 17 is wrapped through an asbestos tube, breakage of the crimping part is prevented due to vibration, and finally, the anti-bending spring 16 is arranged at the outlet of the hollow tube 12, damage caused by long-time bending of the K-type compensation wire 17 and cannot work normally.

It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model is not limited to the examples described in the detailed description, but rather falls within the scope of the utility model as defined by other embodiments derived from the technical solutions of the utility model by those skilled in the art.

Claims

1. An anti-vibration thermocouple, comprising a detection part (10) and a sheath (11), and being characterized in that: the detection part (10) is arranged inside the sheath (11), the detection part (10) comprises a hollow tube (12), the hollow tube (12) is arranged to be hollow, a sliding bolt (14) is arranged on the hollow tube (12) in a sliding way, the sliding bolt (14) can slide on the wall surface of the hollow tube (12), a spring (13) is fixedly arranged between the sliding bolt (14) and one end wall surface of the hollow tube (12), the spring (13) is sleeved on the hollow tube (12), one end of the hollow tube (12) is fixedly provided with an armored thermocouple (19), an even wire (20) is arranged inside the armored thermocouple (19), a filler is arranged inside the armored thermocouple (19), the filler can enable the even wire (20) to be kept still inside the armored thermocouple (19) so as to prevent the even wire (20) from moving, the even wire (20) extends into the hollow tube (12), the output end of the even wire (20) is connected with a K-shaped compensation wire (17) in a crimping way, the even wire (12) is connected with the hollow tube (17) in a crimping way, the hollow wire (17) is prevented from being broken through the hollow wire (17) from being wound on the hollow tube (17) through the wound on the other end of the hollow tube (12), gap filling between the K-type compensation wire (17) and the hollow tube (12) is performed, the K-type compensation wire (17) is prevented from sliding in the hollow tube (12), so that the internal crimping part of the hollow tube (12) is prevented from being torn, an anti-folding spring (16) is arranged on the surface of the K-type compensation wire (17), and the anti-folding spring (16) is arranged at the outlet of the hollow tube (12) to prevent the K-type compensation wire (17) from being damaged due to long-time bending.

2. A thermocouple of the shock-resistant type according to claim 1, characterized in that: the sliding bolt (14) is provided with a movable thread (15) on one side close to the spring (13), and the sliding bolt (14) is installed on the inner side wall surface of the sheath (11) through the movable thread (15), so that the detection part (10) can be installed inside the sheath (11).

3. A thermocouple of the shock-resistant type according to claim 1, characterized in that: the filler is MgO.

4. A thermocouple of the shock-resistant type according to claim 1, characterized in that: the coupling wire (20) is in a V shape, and two ends of the coupling wire are respectively connected with the K-type compensation wire (17).

5. A thermocouple of the shock-resistant type according to claim 1, characterized in that: an external thread (18) is arranged on the outer wall of the sheath (11).