CN214471344U - Non-contact temperature detection device - Google Patents
Non-contact temperature detection device Download PDFInfo
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- CN214471344U CN214471344U CN202120589336.1U CN202120589336U CN214471344U CN 214471344 U CN214471344 U CN 214471344U CN 202120589336 U CN202120589336 U CN 202120589336U CN 214471344 U CN214471344 U CN 214471344U
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Abstract
The utility model provides a non-contact temperature detection device, which comprises a fixed shell, wherein the fixed shell is hollow; the protective sleeve is connected with the fixed shell, the interior of the protective sleeve is hollow and is communicated with the interior of the fixed shell, and a through hole is formed in one end face, away from the fixed shell, of the protective sleeve; the infrared temperature sensor is arranged in the fixed shell, and a detection device of the infrared temperature sensor faces the through hole; the elastic pieces are arranged on the inner wall of the protective sleeve; wherein, a channel for infrared rays to pass through is formed between the through hole and a detection device of the infrared temperature sensor, and the elastic element is positioned outside the channel. The utility model provides a non-contact temperature-detecting device can weaken the effect of explosion shock wave, avoids infrared temperature sensor to openly suffer the shock wave and destroys.
Description
Technical Field
The utility model belongs to the technical field of the temperature-detecting equipment, in particular to non-contact temperature-detecting device.
Background
The weak link of the mouth protection engineering is also one of the keys of the protection. With the development of weapons, the threat faced by oral cavity protection equipment and facilities has increased, and the destruction of weapons includes shock waves, shrapnel, harmful gases, hot gases, and the like. In the scientific research and application process of the oral protection engineering equipment and facilities, the requirement for measuring the surface temperature is increasingly prominent. The existing measuring methods mainly comprise two methods, namely contact measurement, wherein the method mainly uses a thermocouple to sense the temperature, but the sensor influences the daily use of equipment and facilities; secondly, non-contact measurement is carried out, the method mainly comprises the steps that an infrared temperature sensor is used for sensing temperature, a detection device of the infrared temperature sensor receives radiation energy of a measured object to cause temperature rise, and then the performance of one column in the sensor and the temperature is changed. The change of a certain property is detected, and then the change is converted into the temperature value of the measured object. Generally, in order to reduce the measurement error, an obstacle cannot be disposed between the detecting device of the infrared temperature sensor and the object to be measured, so that the infrared rays radiated from the object to be measured can pass through the air and directly irradiate onto the detecting device of the infrared temperature sensor. In addition, when the shock wave generated by explosion propagates in an air medium, the impact influence is directly caused on a detection device of the infrared temperature sensor, and the infrared temperature sensor is damaged. Therefore, it is necessary to develop a non-contact temperature detecting device capable of withstanding the overpressure effect of the explosion shock wave.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
In view of this, an object of the present invention is to provide a non-contact temperature detecting device.
In order to achieve the above object, the technical solution of the present invention provides a non-contact temperature detecting device, including: the fixed shell is hollow inside; the protective sleeve is connected with the fixed shell, the interior of the protective sleeve is hollow and is communicated with the interior of the fixed shell, and a through hole is formed in one end face, away from the fixed shell, of the protective sleeve; the infrared temperature sensor is arranged in the fixed shell, and a detection device of the infrared temperature sensor faces the through hole; the elastic pieces are arranged on the inner wall of the protective sleeve; wherein, a channel for infrared rays to pass through is formed between the through hole and a detection device of the infrared temperature sensor, and the elastic element is positioned outside the channel.
Furthermore, the elastic members are divided into a plurality of groups, each group is provided with a plurality of elastic members, the elastic members in each group are distributed in the protective sleeve around the axis of the channel in a circular array, and the elastic members in the groups are arranged at intervals along the axial direction of the channel.
Further, the projections of any two sets of elastic members in the axial direction of the channel do not completely coincide.
Furthermore, a plurality of elastic pieces are spirally distributed in the protective sleeve around the axis of the channel.
Furthermore, the elastic piece is sheet-shaped and extends from the inner wall of the protective sleeve to the channel; the elastic piece is made of metal alloy material, preferably steel.
Further, the non-contact temperature detection device further includes: the outer annular surface of the support rings is connected with the inner wall of the fixed shell, and the inner annular surface of the support rings is connected with the infrared temperature sensor. And the data acquisition equipment is arranged outside the fixed shell and is electrically connected with the infrared temperature sensor through a shielded cable.
Further, the fixed shell and the protective sleeve are tubular; wherein, the outer wall of the fixed shell is provided with an external thread, and the inner wall of the protective sleeve is provided with an internal thread matched with the external thread; or the inner wall of the fixed shell is provided with an internal thread, and the outer wall of the protective sleeve is provided with an external thread matched with the internal thread.
Further, the elastic member extends in a direction perpendicular to the axis of the passage.
Furthermore, the thickness of the elastic part ranges from 0.1mm to 5 mm; the aperture range of the through hole is 10-12 mm.
Furthermore, the elastic piece is in a whisker shape; the elastic member is made of a metal alloy material, preferably a steel material.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the effect of explosion shock waves can be weakened, and the front side of the infrared temperature sensor is prevented from being damaged by the shock waves.
Drawings
Fig. 1 shows a schematic structural diagram of a non-contact temperature detection device according to an embodiment of the present invention;
fig. 2 shows a schematic structural view of a protective sheath and an elastic member according to an embodiment of the present invention;
fig. 3 shows a schematic structural view of a protective sheath and an elastic member according to an embodiment of the present invention;
fig. 4 shows a schematic structural view of a protective sheath and an elastic member according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of the protective sheath and the elastic member according to an embodiment of the present invention.
The symbols in the figures are as follows:
10 data acquisition equipment, 11 shielded cables, 20 infrared temperature sensors, 30 fixed shells, 31 sealed rear covers, 32 support rings, 40 protective sleeves, 41 through holes, 42 channels, 50 elastic parts, 51 steel fins and 52 steel wires.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention and its advantages will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, an embodiment of the present invention provides a non-contact temperature detecting device.
The non-contact temperature detection device includes: a fixed housing 30, an infrared temperature sensor 20, a protective sleeve 40 and a plurality of elastic members 50. Specifically, the fixed casing 30 is hollow, the fixed casing 30 is used for placing the infrared temperature sensor 20, the protective sleeve 40 is hollow, one end of the protective sleeve 40 is connected with one end of the fixed casing 30, so that the inner space of the protective sleeve 40 is communicated with the detection device of the infrared temperature sensor 20, a through hole 41 is arranged on one end face, away from the fixed casing 30, of the protective sleeve 40, the detection device of the infrared temperature sensor 20 is arranged towards the through hole 41, a channel 42 for infrared rays to pass through is formed between the through hole 41 and the detection device of the infrared temperature sensor 20, infrared rays radiated by an external object pass through the through hole 41 and then pass through the channel 42 of the inner space of the protective sleeve 40 to irradiate on the detection device of the infrared temperature sensor 20, and the temperature of the external object is measured; the elastic member 50 is disposed on the inner wall of the protective sheath 40, and the elastic member 50 is located outside the passage 42.
In detail, the protection cover 40 has a tubular shape, an inner space of the protection cover 40 is divided into a passage 41 and an installation space from an axis of the protection cover 40 to an inner wall of the protection cover 40, and the elastic member 50 is installed in the installation space.
It should be noted that the explosion shock wave includes both transverse wave and longitudinal wave, the longitudinal wave is from air compression caused by explosion, the transverse wave is from air flow and vibration of the ground, when the shock wave in the air is transmitted to the non-contact temperature detecting device, it passes through the through hole 41 and then passes through the inner space of the protective cover 40 before being transmitted to the detecting device of the infrared temperature sensor 20. In this process, the shock wave in the air firstly passes through the through hole 41, the through hole 41 is set to be a small circular hole opposite to the detecting device, so that the shock wave generates diffraction phenomenon when passing through the through hole 41, i.e. the shock wave continues to propagate inside the protective cover 40 by scattering, and after the shock wave is scattered and reflected, the pressure of the shock wave is dispersed, so that the pressure of the shock wave propagating in the channel 42 is weakened, meanwhile, the elastic member 50 arranged on the inner wall of the protective cover 40 causes an obstruction effect on the propagation of the air shock wave, the air shock wave causes the elastic member 50 to generate certain vibration, so that the kinetic energy propagating by the air shock wave is converted into mechanical energy vibrating the elastic member 50, so as to weaken the impact force of the air shock wave, and through the weakening of the plurality of elastic members 50, the impact force of the air shock wave is greatly reduced, so as to reduce the impact of the air shock wave on the detecting device of the infrared temperature sensor 20, the capacity of the non-contact temperature detection device for bearing the overpressure of the explosion shock wave is improved, and the front surface of the infrared temperature sensor 20 is prevented from being damaged by the shock wave.
Further, the plurality of elastic members 50 are divided into a plurality of groups, each group has a plurality of elastic members 50, the plurality of elastic members 50 in each group are distributed in the protective sheath 40 in a circular array around the axis of the passage 42, and the plurality of groups of elastic members 50 are arranged at intervals along the axial direction of the passage 42, specifically, each group of elastic members 50 forms a barrier for attenuating air shock waves, when shock waves pass through each group of elastic members 50, on one hand, the shock waves pass through gaps between different elastic members 50 and are diffracted again to attenuate the impact pressure of the shock waves propagating in the passage 42 layer by layer, on the other hand, the shock waves are in full contact with each group of elastic members 50 after being diffracted for multiple times, the kinetic energy of the air shock waves is sufficiently converted into mechanical energy of the vibration of the elastic members 50, and after the shock waves pass through all the elastic members 50, the impact of the shock waves on the infrared temperature sensor 20 is minimized, thereby attenuating the overpressure impact of the shock wave on the infrared temperature sensor 20.
In a specific embodiment, as shown in fig. 3, the projections of any two sets of elastic members 50 along the axial direction of the channel 42 do not completely coincide, that is, along the axial direction of the channel 42, multiple sets of elastic members 50 are arranged in a staggered manner, so that the air shock wave is obstructed by the next set of elastic members 50 after passing through the gaps between different elastic members 50 of each set of elastic members 50, the contact area between the air shock wave and the elastic members 50 is increased, and the effect of the elastic members 50 on attenuating the air shock wave is improved.
Further, the axis of the elastic member 50 is perpendicular to the axis of the passage 42 to increase the contact area of the air shock wave with the elastic member 50, thereby improving the effect of the elastic member 50 in attenuating the air shock wave.
Alternatively, as shown in fig. 5, a plurality of elastomeric members 50 are helically distributed within the protective sheath 40 about the axis of the channel 42. That is, the elastic members 50 are in a spiral ladder shape with the axis of the channel 42 as the center line, each elastic member 50 has a certain gap along the axial direction of the channel 42, so that each elastic member 50 is located on a different plane, and any two adjacent elastic members 50 are staggered with each other along the radial direction of the channel 42, so that when shock waves are transmitted in the channel 42, the shock waves are weakened layer by layer through each elastic member 50, thereby reducing the impact pressure on the infrared temperature sensor 20, that is, through the irregular sequencing of the elastic members 50, the resistance of the channel 42 to the shock waves is increased, and the wave-absorbing effect of the elastic members 50 is increased.
In one specific embodiment, as shown in fig. 1 and 2, the elastic member 50 is a sheet-shaped steel wing 51, the plurality of steel wings 51 are divided into 4 groups, the number of each group of steel wings 51 is 5, the 5 steel wings 51 in each group are distributed in a circular array around the axis of the channel 42, and four groups of steel wings 51 are respectively arranged at intervals along the axis of the channel 42. Each group of steel fins 51 forms a barrier for weakening air shock waves, when the shock waves pass through each group of steel fins 51, on one hand, the shock waves pass through gaps among different steel fins 51 and are diffracted again to weaken the impact force of the shock waves propagating in the channel 42 layer by layer, on the other hand, the shock waves are fully contacted with each group of steel fins 51 after being diffracted for multiple times, the kinetic energy of the air shock wave propagation is fully converted into mechanical energy of the steel fins 51 for vibrating, and after the shock waves pass through all the steel fins 51, the impact of the shock waves on the infrared temperature sensor 20 is reduced to the minimum, so that the overpressure impact action of the shock waves on the infrared temperature sensor 20 is weakened, and the front surface of the infrared temperature sensor 20 is prevented from being damaged by the shock waves.
The thickness value range of the steel wing piece 51 is 0.1-5 mm, wherein the thickness of the steel wing piece 51 is preferably 2-5 mm. Understandably, the thickness of the steel fins 51 is related to the overall size of the non-contact temperature detection device, and when the thickness of the steel fins 51 is as small as possible (e.g., 0.1mm or 0.2mm), as many steel fins 51 as possible can be arranged in the limited inner space of the protective cover 40, thereby improving the wave-absorbing effect of the steel fins 51.
The aperture range of the through hole 41 is 10-12 mm, and the aperture of the through hole 41 corresponds to the size of the detection device of the infrared temperature sensor 20, so that the detection device can acquire enough infrared rays emitted by a detected object, and the measurement accuracy is ensured.
In another specific embodiment, as shown in fig. 3, the elastic member 50 is a sheet-shaped steel wing 51, the plurality of steel wings 51 are divided into 4 groups, the number of each group of steel wings 51 is 5, the 5 steel wings 51 in each group are distributed in a circular array around the axis of the channel 42, and along the axis of the channel 42, the four groups of steel wings 51 are respectively arranged at intervals, and the four groups of steel wings 51 are arranged in a staggered manner.
In another specific embodiment, as shown in fig. 4, the elastic member 50 is a whisker-shaped steel wire 52, the plurality of steel wires 52 are divided into 4 groups, the steel wires 52 in each group are distributed in a circular array around the axis of the channel 42, and four groups of steel wires 52 are respectively arranged at intervals along the axis of the channel 42. Each set of steel wires 52 forms a barrier for attenuating air shock waves, when the shock waves pass through each set of steel wires 52, on one hand, the shock waves pass through gaps between different steel wires 52 and are diffracted again so as to attenuate the impact force of the shock waves propagating in the channel 42 layer by layer, on the other hand, the shock waves are fully contacted with each set of steel wires 52 after being diffracted for multiple times, the kinetic energy of the air shock waves is fully converted into mechanical energy of the steel wires 52 for vibrating, and after the shock waves pass through all the steel wires 52, the impact of the shock waves on the infrared temperature sensor 20 is reduced to the minimum, so that the overpressure impact effect of the shock waves on the infrared temperature sensor 20 is attenuated.
Further, as shown in fig. 1, the non-contact temperature detecting apparatus further includes: and a plurality of support rings 32, wherein the outer annular surface of each support ring 32 is connected with the inner wall of the fixed shell 30, and the inner annular surface of each support ring 32 is connected with the infrared temperature sensor 20. Specifically, the support rings 32 are plate-shaped, and the two support rings 32 are respectively connected to different positions of the infrared temperature sensor to indirectly fix the infrared temperature sensor 20 inside the fixed housing 30. The stationary housing 30 achieves a reduction in the vibration interference of the explosion shock wave with the temperature sensor to protect the infrared temperature sensor 20 disposed inside the stationary housing 30.
Further, as shown in fig. 1, the non-contact temperature detecting apparatus further includes: data acquisition device 10 locates the outside of fixed casing 30, and the other end of fixed casing 30 is provided with sealed back lid 31, and shielded cable 11 passes sealed back lid 31 and connects data acquisition device 10 and infrared temperature sensor 20 respectively, realizes that data acquisition device 10 is connected with infrared temperature sensor 20 electricity, and data acquisition device 10 realizes temperature data record and storage.
Further, the fixed shell 30 and the protective sleeve 40 are tubular; the outer wall of the fixed shell 30 is provided with an external thread, the inner wall of the protective sleeve 40 is provided with an internal thread matched with the external thread, and the fixed shell 30 and the protective sleeve 40 are connected through the thread so as to facilitate the installation and the disassembly of the non-contact temperature detection device; or the inner wall of the fixed shell 30 is provided with an internal thread, and the outer wall of the protective sleeve 40 is provided with an external thread matched with the internal thread, so that the fixed shell 30 and the protective sleeve 40 are connected through the thread.
The fixed shell 30 can bear the load action of explosion shock waves below 5Mpa, and the installation, fixation and protection of the temperature sensor are realized. The protective sleeve 40 can bear the blast shock wave load below 5Mpa, and the steel fins 51 can weaken the blast shock wave. The detection device can realize the measurement and monitoring of the temperature of steel, concrete and other members in a non-contact mode under the action of the explosive shock waves.
The utility model has the advantages as follows: the utility model provides a non-contact temperature-detecting device can weaken the effect of explosion shock wave, avoids infrared temperature sensor to openly suffer the shock wave and destroys.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A non-contact temperature sensing device, comprising:
the fixed shell is hollow inside;
the protective sleeve is connected with the fixed shell, the interior of the protective sleeve is hollow and is communicated with the interior of the fixed shell, and a through hole is formed in one end face, far away from the fixed shell, of the protective sleeve;
the infrared temperature sensor is arranged in the fixed shell, and a detection device of the infrared temperature sensor faces the through hole;
the elastic pieces are arranged on the inner wall of the protective sleeve;
wherein, a channel for infrared rays to pass through is formed between the through hole and a detection device of the infrared temperature sensor, and the elastic element is positioned outside the channel.
2. The non-contact temperature detecting apparatus according to claim 1,
the elastic pieces are divided into a plurality of groups, each group is provided with a plurality of elastic pieces, the elastic pieces in each group are distributed in the protective sleeve around the axis of the channel in a circular array, and the plurality of groups of elastic pieces are arranged at intervals along the axial direction of the channel.
3. The non-contact temperature detecting apparatus according to claim 2,
projections of any two groups of the elastic parts along the axial direction of the channel are not completely coincident.
4. The non-contact temperature detecting apparatus according to claim 1,
the elastic pieces are spirally distributed in the protective sleeve around the axis of the channel.
5. The non-contact temperature detecting device according to any one of claims 2 to 4,
the elastic piece is in a sheet shape and extends from the inner wall of the protective sleeve towards the channel;
the elastic piece is made of metal alloy materials.
6. The non-contact temperature detecting device according to claim 1, further comprising:
the outer annular surface of the support rings is connected with the inner wall of the fixed shell, and the inner annular surface of the support rings is connected with the infrared temperature sensor;
and the data acquisition equipment is arranged outside the fixed shell and is electrically connected with the infrared temperature sensor through a shielding cable.
7. The non-contact temperature detecting apparatus according to claim 1,
the fixed shell and the protective sleeve are tubular;
the outer wall of the fixed shell is provided with an external thread, and the inner wall of the protective sleeve is provided with an internal thread matched with the external thread; or the inner wall of the fixed shell is provided with internal threads, and the outer wall of the protective sleeve is provided with external threads matched with the internal threads.
8. The non-contact temperature detecting apparatus according to claim 5,
the extension direction of the elastic element is perpendicular to the axis of the channel.
9. The non-contact temperature detecting apparatus according to claim 5,
the thickness range of the elastic piece is 0.1-5 mm;
the aperture range of the through hole is 10-12 mm.
10. The non-contact temperature detecting device according to any one of claims 2 to 4,
the elastic piece is in a whisker shape;
the elastic piece is made of metal alloy materials.
11. The non-contact temperature sensing device of claim 5, wherein the metal alloy material is steel.
12. The non-contact temperature sensing device of claim 10, wherein the metal alloy material is steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120589336.1U CN214471344U (en) | 2021-03-23 | 2021-03-23 | Non-contact temperature detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120589336.1U CN214471344U (en) | 2021-03-23 | 2021-03-23 | Non-contact temperature detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214471344U true CN214471344U (en) | 2021-10-22 |
Family
ID=78159264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120589336.1U Active CN214471344U (en) | 2021-03-23 | 2021-03-23 | Non-contact temperature detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214471344U (en) |
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2021
- 2021-03-23 CN CN202120589336.1U patent/CN214471344U/en active Active
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