CN214040409U - Wear-resistant thermocouple - Google Patents
Wear-resistant thermocouple Download PDFInfo
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- CN214040409U CN214040409U CN202120343323.6U CN202120343323U CN214040409U CN 214040409 U CN214040409 U CN 214040409U CN 202120343323 U CN202120343323 U CN 202120343323U CN 214040409 U CN214040409 U CN 214040409U
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- sleeve
- wear
- resistant
- protection tube
- connecting rod
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Abstract
The utility model provides a wear-resistant thermocouple, which comprises a junction box, wherein the bottom of the junction box is provided with an insulating sleeve protection tube along the vertical direction, a thermal electrode is arranged in the insulating sleeve protection tube along the length direction, a wear-resistant sleeve is detachably arranged on the periphery of the insulating sleeve protection tube, and the lower end of the wear-resistant sleeve is arranged in an open manner; the insulation sleeve protection tube is provided with a fixing ring, the upper end of the wear-resistant sleeve is provided with a connecting ring, a plurality of inserting blocks are arranged on the connecting ring at intervals along the circumferential direction, the fixing ring is provided with inserting slots corresponding to the inserting blocks one to one, and the fixing ring is provided with a limiting fixing component matched with the inserting blocks; the wear-resistant sleeve is detachably connected with the insulating sleeve protection tube through the mutual matching of the fixing ring, the connecting ring, the inserting block, the inserting slot and the limiting fixing component; the utility model discloses compact structure, the result of use is better, the wearability of multiplicable thermocouple to reduce the attrition rate of thermocouple, the effectual life who improves the thermocouple.
Description
Technical Field
The utility model relates to a thermocouple specifically is a wear-resisting thermocouple.
Background
The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument (a secondary instrument). The appearance of various thermocouples is very different according to needs, but the basic structures of the thermocouples are almost the same, and the thermocouples are generally composed of main parts such as a thermode, 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, a thermocouple is worn seriously after being used for a long time, the temperature measurement effect is lost easily, the thermocouple needs to be replaced, the temperature measurement cost is increased, the cost of an enterprise is increased, and the thermocouple is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wear-resisting thermocouple to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a wear-resistant thermocouple comprises a junction box, wherein an insulating sleeve protection tube is arranged at the bottom of the junction box along the vertical direction, a hot electrode is arranged in the insulating sleeve protection tube along the length direction, a wear-resistant sleeve is detachably arranged on the periphery of the insulating sleeve protection tube, and the lower end of the wear-resistant sleeve is open;
the insulation sleeve protection tube is provided with a fixing ring, the upper end of the wear-resistant sleeve is provided with a connecting ring, a plurality of inserting blocks are arranged on the connecting ring at intervals along the circumferential direction, the fixing ring is provided with inserting slots corresponding to the inserting blocks one to one, and the fixing ring is provided with a limiting fixing component matched with the inserting blocks; the wear-resisting sleeve is detachably connected with the insulating sleeve protection tube through the mutual matching of the fixing ring, the connecting ring, the inserting block, the inserting groove and the limiting fixing component.
As a further aspect of the present invention: the upper part of the wear-resistant sleeve is cylindrical, and the lower part of the wear-resistant sleeve is in a hollow circular truncated cone shape with a large upper part and a small lower part.
As a further aspect of the present invention: the insulating sleeve protection tube consists of an upper protection sleeve connected with the junction box, a lower protection sleeve arranged at the lower end of the upper protection sleeve, and a flange arranged at the joint of the upper protection sleeve and the lower protection sleeve; the wear-resisting cover is sleeved on the periphery of the lower protective sleeve, and the fixing ring is arranged at the bottom of the flange.
As a further aspect of the present invention: the limiting fixing assembly comprises a receiving through hole arranged in the fixing ring, a limiting block is movably connected in the receiving through hole, and a limiting groove matched with the limiting block is formed in the inserting block; a connecting rod is arranged at one end of the limiting block, which is far away from the limiting groove, an end cover is arranged at the outer end of the containing through hole, a connecting sleeve which is matched with the connecting rod is arranged on the end cover, and the connecting rod movably penetrates through the connecting sleeve along the horizontal direction; a pull ring is arranged at the outer end of the connecting rod, and a return spring is sleeved on the connecting rod between the connecting sleeve and the limiting block;
when the wear-resistant sleeve is disassembled, the limiting block is positioned in the accommodating through hole through the matching of the pull ring, the connecting sleeve and the connecting rod; when the wear-resistant sleeve is installed, the limiting block is located in the limiting groove through the mutual matching of the reset spring and the connecting rod.
As a further aspect of the present invention: the upper end of inserted block is first inclined plane structure, the stopper is close to the one end of inserted block and is second inclined plane structure, the inclination of second inclined plane structure and first inclined plane structure is the same.
As a further aspect of the present invention: the connecting rod is square structure, the hole and the square structure of adapter sleeve suit.
Compared with the prior art, the beneficial effects of the utility model are that:
by adopting the structure, the utility model can increase the wear resistance of the thermocouple and reduce the loss rate of the thermocouple through the arranged wear-resistant sleeve, thereby reducing the enterprise cost; moreover, the wear-resistant sleeve is detachably connected with the insulating sleeve protection tube through the mutual matching of the fixing ring, the connecting ring, the inserting block, the inserting groove and the limiting fixing assembly, the wear-resistant sleeve can be conveniently disassembled, assembled and replaced, and the wear-resistant sleeve is simple in structure, convenient to use and easy to carry out. Meanwhile, the upper part of the wear-resistant sleeve is cylindrical, the lower part of the wear-resistant sleeve is in a hollow round table shape with a large upper part and a small lower part, the wear-resistant sleeve can be conveniently inserted into a temperature measuring component, the structure is reasonable, and the using effect is good. The utility model discloses compact structure, the result of use is better, the wearability of multiplicable thermocouple to reduce the attrition rate of thermocouple, the effectual life who improves the thermocouple.
Drawings
Fig. 1 is a schematic structural view of a wear-resistant thermocouple.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a partially enlarged schematic view of a portion B in fig. 2.
In the figure: 1. a junction box; 2. an insulating sleeve protection tube; 201. an upper protective sleeve; 202. a lower protective sleeve; 203. a flange; 3. a thermode; 4. a wear-resistant sleeve; 5. a fixing ring; 6. a connecting ring; 7. inserting a block; 8. a slot; 9. a limiting and fixing component; 901. a limiting block; 902. a limiting groove; 903. a connecting rod; 904. an end cap; 905. connecting sleeves; 906. a pull ring; 907. a return spring.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-3, a wear-resistant thermocouple comprises a junction box 1, wherein an insulating sleeve protection tube 2 is arranged at the bottom of the junction box 1 along the vertical direction, a hot electrode 3 is arranged in the insulating sleeve protection tube 2 along the length direction, a wear-resistant sleeve 4 is detachably arranged on the periphery of the insulating sleeve protection tube 2, and the lower end of the wear-resistant sleeve 4 is open; the insulation sleeve protection tube 2 is provided with a fixing ring 5, the upper end of the wear-resistant sleeve 4 is provided with a connecting ring 6, the connecting ring 6 is provided with a plurality of inserting blocks 7 at intervals along the circumferential direction, the fixing ring 5 is provided with inserting slots 8 which are in one-to-one correspondence with the inserting blocks 7, and the fixing ring 5 is provided with a limiting fixing component 9 which is matched with the inserting blocks 7; the wear-resistant sleeve 4 is detachably connected with the insulating sleeve protection tube 2 through the mutual matching of the fixing ring 5, the connecting ring 6, the inserting block 7, the inserting slot 8 and the limiting fixing component 9. The wear-resistant sleeve 4 can increase the wear resistance of the thermocouple and reduce the loss rate of the thermocouple, thereby reducing the enterprise cost; moreover, the wear-resistant sleeve 4 can be conveniently disassembled, assembled and replaced, and the structure is simple, convenient to use.
Preferably, the upper part of the wear-resistant sleeve 4 is cylindrical, and the lower part of the wear-resistant sleeve is in a hollow round table shape with a large upper part and a small lower part, so that the wear-resistant sleeve can be conveniently inserted into a temperature measuring part, and is reasonable in structure and good in using effect.
In addition, the insulating sleeve protection tube 2 consists of an upper protection sleeve 201 connected with the junction box 1, a lower protection sleeve 202 arranged at the lower end of the upper protection sleeve 201, and a flange 203 arranged at the joint of the upper protection sleeve 201 and the lower protection sleeve 202; the wear-resistant sleeve 4 is sleeved on the periphery of the lower protective sleeve 202, and the fixing ring 5 is arranged at the bottom of the flange 203, so that the wear resistance of the temperature measuring part can be effectively improved.
Specifically, the limiting and fixing assembly 9 comprises a receiving through hole arranged in the fixing ring 5, a limiting block 901 is movably connected in the receiving through hole, and a limiting groove 902 adapted to the limiting block 901 is arranged on the insertion block 7; a connecting rod 903 is arranged at one end of the limiting block 901, which is far away from the limiting groove 902, an end cover 904 is arranged at the outer end of the accommodating through hole, a connecting sleeve 905 which is matched with the connecting rod 903 is arranged on the end cover 904, and the connecting rod 903 movably penetrates through the connecting sleeve 905 along the horizontal direction; a pull ring 906 is arranged at the outer end of the connecting rod 903, and a return spring 907 is sleeved on the connecting rod 903 between the connecting sleeve 905 and the limiting block 901; when the wear-resistant sleeve 4 is disassembled, the limiting block 901 is positioned in the accommodating through hole through the matching of the pull ring 906, the connecting sleeve 905 and the connecting rod 903; when the wear-resistant sleeve 4 is installed, the limiting block 901 is located in the limiting groove 902 through the mutual matching of the return spring 907 and the connecting rod 903.
Furthermore, the upper end of the insertion block 7 is of a first inclined plane structure, one end of the limiting block 901, which is close to the insertion block 7, is of a second inclined plane structure, the second inclined plane structure has the same inclination angle as the first inclined plane structure, when the wear-resistant sleeve 4 is installed, the insertion block 7 is directly inserted into the slot 8, and the limiting block 901 can automatically stretch and retract under the action of the inclined plane structure and the reset spring 907, so that the operation is convenient.
Further, the connecting rod 903 is of a square structure, and an inner hole of the connecting sleeve 905 is adapted to the square structure, so that the limiting block 901 can only move in the horizontal direction, and the use is stable.
The utility model discloses a theory of operation is: when the wear-resistant sleeve 4 is worn seriously and needs to be replaced, the pull ring 906 is pulled outwards, the limiting block 901 is moved into the accommodating through hole, the inserting block 7 can be pulled out from the inserting groove 8, and the wear-resistant sleeve 4 is detached.
When installing new wear-resisting cover 4, with the inserted block 7 disect insertion slot 8 in, can drive stopper 901 automatic flexible, insert spacing groove 902 in, carry out spacing fixed to inserted block 7 to accomplish the installation to new wear-resisting cover 4.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. A wear-resistant thermocouple comprises a junction box (1), and is characterized in that an insulating sleeve protection tube (2) is arranged at the bottom of the junction box (1) along the vertical direction, a hot electrode (3) is arranged in the insulating sleeve protection tube (2) along the length direction, a wear-resistant sleeve (4) is detachably arranged on the periphery of the insulating sleeve protection tube (2), and the lower end of the wear-resistant sleeve (4) is arranged in an open manner;
the insulation sleeve protection tube (2) is provided with a fixing ring (5), the upper end of the wear-resistant sleeve (4) is provided with a connecting ring (6), the connecting ring (6) is provided with a plurality of inserting blocks (7) at intervals along the circumferential direction, the fixing ring (5) is provided with inserting slots (8) which are in one-to-one correspondence with the inserting blocks (7), and the fixing ring (5) is provided with a limiting fixing component (9) which is matched with the inserting blocks (7); the wear-resistant sleeve (4) is detachably connected with the insulating sleeve protection tube (2) through the mutual matching of the fixing ring (5), the connecting ring (6), the inserting block (7), the inserting groove (8) and the limiting fixing component (9).
2. A wear-resistant thermocouple according to claim 1, characterized in that the upper part of the wear-resistant sleeve (4) is cylindrical and the lower part of the wear-resistant sleeve () is hollow truncated cone with a large upper part and a small lower part.
3. A wear-resistant thermocouple according to claim 1, characterized in that the insulating sheath protection tube (2) consists of an upper protection sleeve (201) connected to the junction box (1), a lower protection sleeve (202) arranged at the lower end of the upper protection sleeve (201), and a flange (203) arranged at the junction of the upper protection sleeve (201) and the lower protection sleeve (202); the wear-resistant sleeve (4) is sleeved on the periphery of the lower protective sleeve (202), and the fixing ring (5) is arranged at the bottom of the flange (203).
4. The wear-resistant thermocouple according to claim 1, wherein the limiting and fixing component (9) comprises a receiving through hole arranged in the fixing ring (5), a limiting block (901) is movably connected in the receiving through hole, and a limiting groove (902) adapted to the limiting block (901) is arranged on the insertion block (7); a connecting rod (903) is arranged at one end, away from the limiting groove (902), of the limiting block (901), an end cover (904) is arranged at the outer end of the accommodating through hole, a connecting sleeve (905) which is matched with the connecting rod (903) is arranged on the end cover (904), and the connecting rod (903) movably penetrates through the connecting sleeve (905) along the horizontal direction; a pull ring (906) is arranged at the outer end of the connecting rod (903), and a return spring (907) is sleeved on the connecting rod (903) between the connecting sleeve (905) and the limiting block (901);
when the wear-resistant sleeve (4) is disassembled, the limiting block (901) is positioned in the accommodating through hole through the matching of the pull ring (906), the connecting sleeve (905) and the connecting rod (903); when the wear-resistant sleeve (4) is installed, the limiting block (901) is located in the limiting groove (902) through the mutual matching of the return spring (907) and the connecting rod (903).
5. A wear-resistant thermocouple according to claim 4, characterized in that the upper end of the insert (7) is in a first inclined plane structure, and the end of the limit block (901) close to the insert (7) is in a second inclined plane structure, and the angle of inclination of the second inclined plane structure is the same as that of the first inclined plane structure.
6. A wear resistant thermocouple according to claim 4, characterized in that the connecting rod (903) is of square configuration, the inner bore of the connecting sleeve (905) corresponding to the square configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120343323.6U CN214040409U (en) | 2021-02-04 | 2021-02-04 | Wear-resistant thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120343323.6U CN214040409U (en) | 2021-02-04 | 2021-02-04 | Wear-resistant thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214040409U true CN214040409U (en) | 2021-08-24 |
Family
ID=77348006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120343323.6U Expired - Fee Related CN214040409U (en) | 2021-02-04 | 2021-02-04 | Wear-resistant thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214040409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353980A (en) * | 2021-12-20 | 2022-04-15 | 上海精普机电科技有限公司 | Thermocouple with temperature transmitter |
-
2021
- 2021-02-04 CN CN202120343323.6U patent/CN214040409U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353980A (en) * | 2021-12-20 | 2022-04-15 | 上海精普机电科技有限公司 | Thermocouple with temperature transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 Termination date: 20220204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |