CN212779624U - High-temperature-resistant electric thermocouple - Google Patents
High-temperature-resistant electric thermocouple Download PDFInfo
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- CN212779624U CN212779624U CN202021193419.0U CN202021193419U CN212779624U CN 212779624 U CN212779624 U CN 212779624U CN 202021193419 U CN202021193419 U CN 202021193419U CN 212779624 U CN212779624 U CN 212779624U
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- protective layer
- tube
- protection
- protective
- high temperature
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- 230000001681 protective effect Effects 0.000 claims abstract description 46
- 239000011324 bead Substances 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000007770 graphite material Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a thermocouple technical field just discloses a high temperature resistance electric heat couple, including the terminal box, the top threaded connection of terminal box has the lid, the left side intercommunication of terminal box surface has the lead-out wire sleeve pipe, the top of lid surface is provided with first bolt, the lower fixed surface of terminal box is connected with the junction box, the inner wall threaded connection of junction box has first protective tube, the right side threaded connection of junction box surface has the second bolt. This high temperature resistant electric heat couple through being provided with first protection tube and second protection tube, has realized the protection to insulating bead pipe and electric heat end, makes this electric heat couple can normally work, avoids it to receive the damage, and first fixed cover and the fixed cover of second pass through second draw-in groove and second fixture block joint, have realized the protection to flange, and flange produces not hard up condition when avoiding using for a long time, avoids influencing this electric heat couple's use.
Description
Technical Field
The utility model relates to a thermocouple technical field specifically is a high temperature resistant electric heat couple.
Background
The thermocouple is a common temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument (a secondary instrument), has different appearances as required, but has approximately the same basic structure, generally consists of a thermode, an insulating sleeve protection tube, a junction box and other main parts, is generally matched with a display instrument, a recording instrument and an electronic regulator for use, and needs to bear high temperature because the thermocouple is a temperature measuring element; however, a common thermocouple is poor in heat resistance, easy to damage in a high-temperature environment and difficult to work normally, the thermocouple is usually installed on a pipeline, various impacts can be suffered in the working process due to the influence of the working environment, the common thermocouple is lack of a protection device, the service life of the thermocouple is shortened, the thermocouple and the pipeline are connected in a flange connection mode, and the thermocouple is loosened from the flange after working for a long time, so that a medium in the pipeline flows out, and the thermocouple is broken down.
The Chinese patent application No. 201821328981.2 discloses a novel high temperature resistant thermocouple, which relates to the thermocouple field, and comprises a junction box, wherein the lower surface of the junction box is fixedly connected with an upper protective sleeve, the inside of the upper protective sleeve is fixedly provided with an insulating bead tube, the inside of the insulating bead tube is sleeved with a thermal electrode, the lower surface of the insulating bead tube is fixedly connected with an insulating sleeve, the outer surface of the upper protective sleeve is fixedly provided with a flange limiting component at the position close to the outer side of a connecting flange, the junction box comprises a box body, the side surface of the box body is fixedly connected with a lead-out wire sleeve, the upper surface of the box body is fixedly connected with a first connecting nut, the position of one side of the upper surface of the box body close to the first connecting nut is fixedly connected with a second connecting nut, the upper protective sleeve comprises an outer protective shell, the inner surface of the, the condition that can not produce not hard up through the composite construction of lower protective sheath, has improved the heat resistance of thermocouple, but this novel thermocouple of high temperature resistance has more defect, wherein goes up protective case and terminal box fixed connection, goes up protective case and cup joints with lower protective case, and structural connection is improper, if goes up protective case and lower protective case and receives the damage, is difficult for more changing protective case and lower protective case to the influence is to the protection of hot electrode.
Therefore, the inventor, with his experience of design development and actual manufacturing in the related industry for many years, has studied and improved the existing structure and deficiency, and provides a high temperature resistant thermocouple, so as to achieve the purpose of more practical value.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a high temperature resistance electric heat couple has solved this high temperature resistance novel thermocouple who provides in the above-mentioned background art and has had more defect, wherein goes up protective case and terminal box fixed connection, goes up protective case and cup joints with lower protective case, and structural connection is improper, if goes up protective case and receives the damage with lower protective case, is difficult for more changing protective case and lower protective case to the problem of influence to the protection of hot electrode.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant thermocouple comprises a junction box, wherein the top of the junction box is in threaded connection with a box cover, the left side of the outer surface of the junction box is communicated with a lead-out wire sleeve, a first bolt is arranged at the top of the outer surface of the box cover, a junction tube is fixedly connected to the lower surface of the junction box, a first protection tube is in threaded connection with the inner wall of the junction tube, a second bolt is in threaded connection with the right side of the outer surface of the junction tube, a first fixing cover is sleeved on the outer surface of the first protection tube, a first clamping groove is formed in the bottom of the outer surface of the first protection tube, a second clamping groove is formed in the bottom of the inner wall of the first fixing cover, a first clamping block is clamped in the first clamping groove, a second clamping block is clamped in the second clamping groove, a second fixing cover is fixedly connected to the lower surface of the second clamping block, and, the bottom of first protective tube surface has cup jointed flange, the inside of first protective tube and second protective tube all is provided with the third protective layer, the medial surface of first fixture block and the top fixed connection who is located the third protective layer surface of bottom, the lower fixed surface who is located the third protective layer at top is connected with the spring, the inside of third protective layer is provided with the second protective layer, the inside of second protective layer is provided with first protective layer, the inside of first protective layer is pegged graft and is had insulating bead pipe, the bottom fixedly connected with electric heat end of insulating bead pipe, the surface of electric heat end has cup jointed insulating cover.
Preferably, the number of the first clamping grooves and the number of the second clamping grooves are two, the first clamping grooves are U-shaped, and the second clamping grooves are L-shaped.
Preferably, the distance between the inner wall of the first fixed cover and the outer surface of the first protection pipe is five millimeters, and the distance between the lower surface of the third protection layer at the top and the upper surface of the third protection layer at the bottom is ten millimeters.
Preferably, the left end of the second bolt passes through the outer surface of the junction tube and passes through the top of the outer surface of the first protection tube.
Preferably, the first protective layer is made of a silica gel material, the second protective layer is made of a graphite material, and the third protective layer is made of a quartz material.
Preferably, the insulating sleeve is made of magnesium oxide materials, and the upper surface of the insulating sleeve is fixedly connected with the bottom ends of the first protective layer, the second protective layer and the third protective layer which are located at the bottom.
(III) advantageous effects
Compared with the prior art, the utility model provides a high temperature resistant electric heat couple possesses following beneficial effect:
1. this high temperature resistant electric heat couple through being provided with first protection tube and second protection tube, has realized the protection to insulating bead pipe and electric heat end, makes this electric heat couple can normally work, avoids it to receive the damage, and first fixed cover and the fixed cover of second pass through second draw-in groove and second fixture block joint, have realized the protection to flange, and flange produces not hard up condition when avoiding using for a long time, avoids influencing this electric heat couple's use.
2. This high temperature resistant electric heat couple, through first protection tube and junction tube threaded connection, and fix once more through the second bolt, make this electric heat couple structure more stable, and first protection tube and second protection tube can replace when suffering the damage, thereby improved this electric heat couple's practicality, be provided with the spring, make the spring can extrude the third protective layer that is located the bottom, thereby make the connection of second protection tube and first protection tube more firm, improved this electric heat couple's stability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of a first fixing cover structure of the present invention;
FIG. 3 is a schematic sectional view of a part of the structure of the present invention;
fig. 4 is a schematic view of the cross-sectional structure of the present invention.
In the figure: 1. a junction box; 2. a box cover; 3. a lead-out wire sleeve; 4. a first bolt; 5. a wire connecting pipe; 6. a first protective tube; 601. a first card slot; 7. a first stationary cover; 701. a second card slot; 8. a second bolt; 9. a first clamping block; 10. a second fixture block; 11. a second stationary cover; 12. a second protection tube; 13. a connecting flange; 14. a third protective layer; 15. a spring; 16. a second protective layer; 17. a first protective layer; 18. insulating the bead tube; 19. an electric heating terminal; 20. and an insulating sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a high-temperature-resistant thermocouple comprises a junction box 1, a box cover 2 is in threaded connection with the top of the junction box 1, a lead-out wire sleeve 3 is communicated with the left side of the outer surface of the junction box 1, a first bolt 4 is arranged at the top of the outer surface of the box cover 2, a junction tube 5 is fixedly connected to the lower surface of the junction box 1, a first protective tube 6 is in threaded connection with the inner wall of the junction tube 5, a second bolt 8 is in threaded connection with the right side of the outer surface of the junction tube 5, the first protective tube 6 is in threaded connection with the junction tube 5 and is fixed again through the second bolt 8, so that the structure of the thermocouple is more stable, the first protective tube 6 and a second protective tube 12 can be replaced when being damaged, the practicability of the thermocouple is improved, a first fixed cover 7 is sleeved on the outer surface of the first protective tube 6, a first clamping groove 601 is formed in the bottom of the outer surface of the first protective tube 6, the first clamping groove 601 is internally clamped with a first clamping block 9, the second clamping groove 701 is internally clamped with a second clamping block 10, the lower surface of the second clamping block 10 is fixedly connected with a second fixed cover 11, the middle part of the lower surface of the second fixed cover 11 is inserted with a second protection pipe 12, and is provided with a first protection pipe 6 and a second protection pipe 12, so that the protection of an insulating bead pipe 18 and an electric heating end 19 is realized, the electric heating couple can normally work and is prevented from being damaged, the bottom of the outer surface of the first protection pipe 6 is sleeved with a connecting flange 13, the first fixed cover 7 and the second fixed cover 11 are clamped with the second clamping block 10 through the second clamping groove 701, so that the protection of the connecting flange 13 is realized, the situation that the connecting flange 13 is loosened during long-time use is avoided, the use of the electric heating couple is prevented from being influenced, third protection layers 14 are respectively arranged inside the first protection pipe 6 and the second protection pipe 12, the inner side surface of the first clamping block 9 is fixedly connected with the top of the outer surface of the, the lower fixed surface who is located the third protective layer 14 at top is connected with spring 15, be provided with spring 15, make spring 15 can extrude the third protective layer 14 that is located the bottom, thereby make second protection tube 12 and first protection tube 6 be connected more firm, this thermocouple's stability has been improved, the inside of third protective layer 14 is provided with second protective layer 16, the inside of second protective layer 16 is provided with first protective layer 17, the inside of first protective layer 17 is pegged graft and is had insulating pearl pipe 18, the bottom fixedly connected with electrothermal end 19 of insulating pearl pipe 18, the surface of electrothermal end 19 has cup jointed insulating cover 20.
The utility model discloses in, it is more convenient in order to make this electric heat couple equipment to the quantity that sets up first draw-in groove 601 and second draw-in groove 701 is two sets of, and the shape of first draw-in groove 601 is the U-shaped, and the shape of second draw-in groove 701 appears for L, the fixed second protection tube 12 of first draw-in groove 601, the fixed first fixed cover 7 of second draw-in groove 701.
The utility model discloses in, in order to facilitate people to operate to the inner wall of first fixed cover 7 and the surface of first protective tube 6 are five millimeters at a distance of zero, and the lower surface that is located the third protective layer 14 at top and the upper surface that is located the third protective layer 14 of bottom are ten millimeters at a distance, and first fixed cover 7 can be followed the surface of first protective tube 6 and slided from top to bottom.
The utility model discloses in, in order to make this thermocouple structure more stable to the top that the left end of second bolt 8 passed the surface of wire barrel 5 and passed the surface of first protective tube 6, second bolt 8 fixed wire barrel 5 and first protective tube 6.
The utility model discloses in, in order to improve this thermocouple high temperature resistance's effect to first protective layer 17 adopts the silica gel material preparation to form, and second protective layer 16 adopts the graphite material preparation to form, and third protective layer 14 adopts the quartz material preparation to form, and first protective layer 17 protects insulating bead pipe 18.
The utility model discloses in, in order to improve this thermocouple's security to insulating cover 20 adopts the preparation of magnesium oxide material to form, and insulating cover 20's upper surface all with be located the bottom fixed connection of the first protective layer 17 of bottom, second protective layer 16 and third protective layer 14, insulating cover 20 protects electric heat end 19.
When in use, the first protection tube 6 is rotationally connected with the wire connecting tube 5, the first protection tube 6 and the wire connecting tube 5 are fixed again through the second bolt 8, the second protection tube 12 drives the first fixture block 9 to push upwards along the first clamping groove 601, the third protection layer 14 positioned at the bottom extrudes the spring 15, the second protection tube 12 is rotated to enable the first fixture block 9 to be clamped with the first clamping groove 601, thereby fixing the first protection tube 6 and the second protection tube 12, fixedly connecting the thermocouple with an external pipeline through the connecting flange 13, then moving the first fixing cover 7 downwards to enable the second fixture block 10 to be inserted into the second clamping groove 701, rotating the first fixing cover 7 to enable the second fixture block 10 to be clamped with the second clamping groove 701, thereby fixing the first and second fixing caps 7 and 11 and thus protecting the connection flange 13 from loosening, if the first and second protection pipes 6 and 12 are damaged, the second bolt 8 can be removed and the first protective tube 6 and the second protective tube 12 can be replaced.
To sum up, this high temperature resistant electric heat couple through being provided with first protection tube 6 and second protection tube 12, has realized the protection to insulating bead pipe 18 and electric heat end 19, makes this electric heat couple can normally work, avoids it to receive the damage, and first fixed cover 7 and the fixed cover 11 of second pass through second draw-in groove 701 and the joint of second fixture block 10, have realized the protection to flange 13, and flange 13 produces the not hard up condition when avoiding long-term use, avoids influencing this electric heat couple's use.
This high temperature resistant electric heat couple, through first protective tube 6 and 5 threaded connection of junction tube, and fix once more through second bolt 8, make this electric heat couple structure more stable, and first protective tube 6 and second protective tube 12 can replace when suffering the damage, thereby the practicality of this electric heat couple has been improved, be provided with spring 15, make spring 15 can extrude the third protective layer 14 that is located the bottom, thereby make second protective tube 12 and first protective tube 6 be connected more firm, the stability of this electric heat couple has been improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A high temperature resistant thermocouple, includes terminal box (1), its characterized in that: the top of the junction box (1) is in threaded connection with a box cover (2), the left side of the outer surface of the junction box (1) is communicated with a lead-out wire sleeve (3), a first bolt (4) is arranged at the top of the outer surface of the box cover (2), a junction tube (5) is fixedly connected to the lower surface of the junction box (1), a first protection tube (6) is in threaded connection with the inner wall of the junction tube (5), a second bolt (8) is in threaded connection with the right side of the outer surface of the junction tube (5), a first fixing cover (7) is sleeved on the outer surface of the first protection tube (6), a first clamping groove (601) is formed in the bottom of the outer surface of the first protection tube (6), a second clamping groove (701) is formed in the bottom of the inner wall of the first fixing cover (7), a first clamping block (9) is clamped inside the first clamping groove (601), a second clamping block (10) is clamped inside the, the lower surface of the second fixture block (10) is fixedly connected with a second fixed cover (11), a second protective pipe (12) is inserted in the middle of the lower surface of the second fixed cover (11), a connecting flange (13) is sleeved at the bottom of the outer surface of the first protective pipe (6), third protective layers (14) are arranged inside the first protective pipe (6) and the second protective pipe (12), the inner side surface of the first fixture block (9) is fixedly connected with the top of the outer surface of the third protective layer (14) positioned at the bottom, a spring (15) is fixedly connected with the lower surface of the third protective layer (14) positioned at the top, a second protective layer (16) is arranged inside the third protective layer (14), a first protective layer (17) is arranged inside the second protective layer (16), and an insulating bead pipe (18) is inserted inside the first protective layer (17), the bottom end of the insulating bead tube (18) is fixedly connected with an electric heating end (19), and the outer surface of the electric heating end (19) is sleeved with an insulating sleeve (20).
2. The high temperature resistant thermocouple of claim 1, wherein: the number of the first clamping grooves (601) and the number of the second clamping grooves (701) are two, the first clamping grooves (601) are U-shaped, and the second clamping grooves (701) are L-shaped.
3. The high temperature resistant thermocouple of claim 1, wherein: the distance between the inner wall of the first fixed cover (7) and the outer surface of the first protection pipe (6) is five millimeters at zero point, and the distance between the lower surface of the third protection layer (14) positioned at the top and the upper surface of the third protection layer (14) positioned at the bottom is ten millimeters.
4. The high temperature resistant thermocouple of claim 1, wherein: the left end of the second bolt (8) passes through the outer surface of the junction box (5) and passes through the top of the outer surface of the first protection pipe (6).
5. The high temperature resistant thermocouple of claim 1, wherein: the first protective layer (17) is made of a silica gel material, the second protective layer (16) is made of a graphite material, and the third protective layer (14) is made of a quartz material.
6. The high temperature resistant thermocouple of claim 1, wherein: insulating cover (20) adopt the preparation of magnesium oxide material to form, the upper surface of insulating cover (20) all with the bottom fixed connection that is located first protective layer (17), second protective layer (16) and third protective layer (14) of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021193419.0U CN212779624U (en) | 2020-06-24 | 2020-06-24 | High-temperature-resistant electric thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021193419.0U CN212779624U (en) | 2020-06-24 | 2020-06-24 | High-temperature-resistant electric thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212779624U true CN212779624U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021193419.0U Expired - Fee Related CN212779624U (en) | 2020-06-24 | 2020-06-24 | High-temperature-resistant electric thermocouple |
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| CN (1) | CN212779624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607294A (en) * | 2021-05-25 | 2021-11-05 | 安徽宏康特种金属材料有限公司 | Protective sleeve for thermocouple convenient temperature measurement |
-
2020
- 2020-06-24 CN CN202021193419.0U patent/CN212779624U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607294A (en) * | 2021-05-25 | 2021-11-05 | 安徽宏康特种金属材料有限公司 | Protective sleeve for thermocouple convenient temperature measurement |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |