CN218584212U - Waterproof and explosion-proof hot spot detector - Google Patents

Abstract

A waterproof and explosion-proof hot spot detector comprises a surface thermocouple cable and a compensating lead; the two ends of the surface thermocouple cable are respectively provided with a connecting socket, the end part of the compensation lead is provided with a connecting plug, the connecting socket comprises a socket shell, a socket base and a socket core body, the socket shell is in threaded connection with the socket base, the socket core body is arranged in the socket shell and the socket base, a first sealing ring is arranged between the socket core body and the socket shell as well as between the socket core body and the socket base, and the surface thermocouple cable is connected with the socket core body; the connecting plug comprises a plug shell, a plug base, a plug core body and a loose joint nut, wherein the plug shell is in threaded connection with the plug base, the plug core body is arranged in the plug shell and the plug base, sealing gaskets are arranged between the plug core body and the plug shell as well as between the plug core body and the plug base, and a compensating lead is connected with the plug core body; the connecting plug is inserted into the connecting socket, the loose joint nut is connected with the connecting socket to fix the connecting plug and the connecting socket, and the second sealing ring is arranged between the plug base and the socket base.

Description

Waterproof and explosion-proof hot spot detector

Technical Field

The utility model relates to a temperature detection technical field, in particular to waterproof and explosion-proof's hot spot detector.

Background

In recent years, industries such as coal chemical industry, oil refining, new materials and the like in China are rapidly developed, and the industries need to be provided with a plurality of sets of key equipment such as a high-temperature high-pressure furnace, a raw material converter, a reaction kettle, cyclones at all levels and the like, so that production halt, even explosion and other vicious events can occur due to equipment faults caused by local overtemperature, and the fact that surface temperature detecting instruments are arranged on the key equipment is particularly important for monitoring the safe operation of the key equipment.

At present, hot spot detection (also called surface thermocouples) is commonly used. The cable of the detector can sense temperature at any point, outputs a direct-current millivolt signal corresponding to the highest temperature along the line, fixes the detector on the surface of equipment, can detect the highest temperature on the line, and realizes the temperature detection function of overtemperature alarm. However, the connection parts at the two ends of the detector cable are complex in connection and disassembly, so that the installation and maintenance are difficult, the detector is in a high-temperature, inflammable and explosive complex environment for a long time and is exposed outside, water easily enters or smoke easily enters, the detector is damaged, the measurement result is inaccurate, safety accidents easily occur, and the service life is short. How to solve these problems needs a hot spot detector which is convenient to install, convenient to maintain, adaptive to an explosion-proof environment, waterproof and dustproof.

Disclosure of Invention

The utility model aims at prior art not enough, provide a waterproof and explosion-proof hot spot detector, it can be used to complicated operational environment such as high temperature, inflammable and explosive, safe in utilization, installation and maintenance convenience, long service life.

The technical scheme of the utility model is that: a waterproof and explosion-proof hot spot detector comprises a surface thermocouple cable and a compensation lead, wherein two ends of the surface thermocouple cable are respectively provided with a connecting socket, the end part of the compensation lead is provided with a connecting plug, the connecting socket comprises a socket shell, a socket base and a socket core body, the socket shell is in threaded connection with the socket base, the socket core body is arranged in the socket shell and the socket base, a first sealing ring is arranged between the socket core body and the socket shell as well as between the socket core body and the socket base, and the surface thermocouple cable is connected with the socket core body; the connecting plug comprises a plug shell, a plug base, a plug core body and a loose joint nut, wherein the plug shell is in threaded connection with the plug base, the plug core body is arranged in the plug shell and the plug base, sealing gaskets are arranged between the plug core body and the plug shell as well as between the plug core body and the plug base, and the compensating wires are connected with the plug core body; the connecting plug is inserted into the connecting socket, the plug base is inserted into the socket base, the core wire of the plug core body and the core wire of the socket core body are connected in an embedded mode, the connecting plug and the connecting socket are fixedly connected through the loose joint nut and the connecting socket in a threaded mode, and the second sealing ring is arranged between the plug base and the socket base.

The core wire of the surface thermocouple cable is connected with the core wire of the socket core body in an embedded mode.

The core wire of the compensation wire is connected with the core wire of the plug core body in an embedded mode.

The diameter of a core wire of the surface thermocouple cable is smaller than that of a core wire of the socket core body, the core wire of the surface thermocouple cable is inserted into a hole formed in the core wire of the socket core body and connected with the hole, the diameter of the core wire of the socket core body is smaller than that of the core wire of the plug core body, the core wire of the socket core body is inserted into a hole formed in the core wire of the plug core body and connected with the hole, the diameter of the core wire of the plug core body is larger than that of a core wire of the compensation wire, and the core wire of the compensation wire is inserted into a hole formed in the core wire of the plug core body and connected with the hole.

A socket sealing plug is arranged between the surface thermocouple cable and the socket shell, and the socket sealing plug is tightly pressed by a socket plug to form fixation; and a plug sealing plug is arranged between the compensation lead and the plug shell, and the plug sealing plug is tightly pressed by a plug to form fixation. And organic sealant is filled in a gap between the socket plug and the surface thermocouple cable, and organic sealant is filled in a gap between the plug and the compensation lead.

The socket core body is in a stepped cylindrical shape, the middle part of the socket core body is a large-diameter section, and the two ends of the socket core body are small-diameter sections; the socket shell is a cylinder provided with an axial through hole, the socket base is a stepped cylinder provided with an axial through hole, the axial through holes of the socket shell and the socket base are stepped holes, two ends of each stepped hole are large-diameter holes, and the middle of each stepped hole is a small-diameter hole; the socket comprises a socket shell, a socket base, a socket sealing ring, a first sealing ring, a second sealing ring and a socket core, wherein the socket shell is provided with a large-diameter hole, the small-diameter hole is arranged on the socket base, the small-diameter section at one end of the socket core is inserted into the small-diameter hole of the socket shell, the small-diameter section at the other end of the socket core extends out of the small-diameter hole of the socket base, an external thread arranged at the small-diameter end of the socket base is matched with an internal thread arranged in the large-diameter hole of the socket shell to fix the socket core, the socket shell corresponds to a first annular groove arranged in the large-diameter hole of the socket core, the first sealing ring is arranged in the first annular groove, a second annular groove is arranged in the large-diameter hole, which is used for inserting the plug base, of the socket base, and the second sealing ring is arranged in the second annular groove.

The plug core is the cylinder shape, the cylinder of plug base for being equipped with axial hole, this cylinder excircle are equipped with limit flange, the loose joint nut is equipped with the shoulder hole, and the path pot head of this shoulder hole is at plug base and spacing in plug base's limit flange, and the big footpath hole of shoulder hole sets up the internal thread, plug housing is the cylinder that is equipped with axial hole, and this axial hole is the shoulder hole, and both ends are big footpath hole, and the centre is the aperture hole, the internal thread that the big footpath hole of plug housing one end set up and the thread fit of plug base one end setting, with loose joint nut axial spacing on plug base, should set up sealed the pad in the big footpath hole, the plug core sets up downthehole and one end inserts plug housing's aperture hole at plug base.

The middle section of the outer circle of the socket base is provided with a limiting flange, one end of the outer circle of the socket base is provided with an external thread matched with the fixing nut, and the other end of the outer circle of the socket base is provided with an external thread matched with the union nut.

And hexagonal flanges are arranged at the middle sections of the outer circles of the socket shell and the plug shell.

Adopt above-mentioned technical scheme: a waterproof and explosion-proof hot spot detector comprises a surface thermocouple cable and a compensation lead, wherein two ends of the surface thermocouple cable are respectively provided with a connecting socket, the end part of the compensation lead is provided with a connecting plug, the connecting socket comprises a socket shell, a socket base and a socket core body, the socket shell is fixedly connected with the socket base through threads, the socket core body is arranged in the socket shell and the socket base and is fixed by the socket shell and the socket base and is surrounded and protected, first sealing rings are arranged between the socket core body and the socket shell and between the socket core body and the socket base, gaps between the socket core body and the socket shell and between the socket core body and the socket base are sealed and isolated from the outside, and the surface thermocouple cable is connected with the socket core body; the connecting plug comprises a plug shell, a plug base, a plug core body and a loose joint nut, wherein the plug shell is fixedly connected with the plug base through threads, the plug core body is arranged in the plug shell and the plug base and is surrounded and protected by the plug shell and the socket base, sealing gaskets are arranged between the plug core body and the plug shell as well as between the plug core body and the plug base, the sealing gaskets are isolated from the outside, and the compensating wires are connected with the plug core body; the connecting plug is connected with the connecting socket in an inserting mode, the plug base is inserted into the socket base, the core wire of the plug core body is connected with the core wire of the socket core body in an embedding mode, the connecting plug and the connecting socket are fixedly connected through the loose joint nut and the connecting socket in a threaded connection mode, the third sealing ring is arranged between the plug base and the socket base, the gap between the plug base and the socket base is sealed, and the plug base and the socket base are isolated from the outside. Therefore, the surface thermocouple cable can be fixed on the wall of a facility through the connecting socket, the compensation lead can be connected with the connecting socket through the connecting plug, the installation is convenient, the maintenance and the replacement are convenient, and the surface thermocouple cable is waterproof and dustproof and is favorable for being used in an explosion-proof environment.

The core wire of the surface thermocouple cable is connected with the core wire of the socket core body in an embedded mode, and the core wire of the compensation wire is connected with the core wire of the plug core body in an embedded mode, so that the plug-in installation is facilitated.

The diameter of the core wire of the surface thermocouple cable is smaller than the diameter of the core wire of the socket core body, the core wire of the surface thermocouple cable is inserted into the hole formed in the core wire of the socket core body and connected with the hole, the diameter of the core wire of the socket core body is smaller than the diameter of the core wire of the plug core body, the core wire of the socket core body is inserted into the hole formed in the core wire of the plug core body and connected with the hole, the diameter of the core wire of the plug core body is larger than the diameter of the core wire of the compensation wire, the core wire of the compensation wire is inserted into the hole formed in the core wire of the plug core body and connected with the hole, the surface thermocouple cable is conveniently connected with the socket core body in the plug-in mode, the compensation wire is conveniently connected with the plug core body, and the surface thermocouple cable is also simple and convenient to disassemble.

Set up the socket sealing plug between surface thermocouple cable and the socket casing, and compress tightly the socket sealing plug with the socket end cap and form fixedly, set up the plug sealing plug between compensation wire and the plug casing, and compress tightly the plug sealing plug with the plug end cap and form fixedly, this kind of mode both can be through end cap to sealing plug extrusion deformation, tightly fix surface thermocouple cable in the socket casing, tightly fix the compensation wire in the plug casing, can also form sealedly through the sealing plug, play waterproof, dustproof, explosion-proof effect.

The gap between the socket plug and the surface thermocouple cable is filled with organic sealant, the gap between the plug and the compensation lead is filled with organic sealant, and the gap between the plug and the cable is filled with the sealant, so that the sealing effect is ensured.

The socket core body is in a stepped cylindrical shape, the middle part of the socket core body is a large-diameter section, and the two ends of the socket core body are small-diameter sections; the socket shell is a cylinder provided with an axial through hole, the socket base is a stepped cylinder provided with an axial through hole, the axial through holes of the socket shell and the socket base are stepped holes, two ends of each stepped hole are large-diameter holes, and the middle of each stepped hole is a small-diameter hole; the small-diameter section of one end of the socket core body is inserted into the small-diameter hole of the socket shell, the small-diameter section of the other end of the socket core body extends out of the small-diameter hole of the socket base, a shaft shoulder of the socket core body and a hole shoulder of the stepped hole of the socket shell form axial spacing, an external thread arranged at the small-diameter end of the socket base is matched with an internal thread arranged at a large-diameter hole of the socket shell body to fix the socket core body and prevent axial displacement, a first annular groove is arranged in the large-diameter hole of the socket shell body corresponding to the socket core body, a first sealing ring is arranged in the first annular groove and seals a gap between the socket shell body and the socket core body, a second annular groove is arranged in the large-diameter hole of the socket base body for inserting the plug base, and the second sealing ring is arranged in the second annular groove and seals the gap between the socket base and the plug base through the second sealing ring. By adopting the structure, the assembly of the connecting socket is convenient, and the sealing of the gap between the parts can be realized.

The plug core is the cylinder shape, the cylinder of plug base for being equipped with axial through hole, this cylinder excircle are equipped with limit flange, the loose joint nut is equipped with the shoulder hole, and the path joggle of this shoulder hole is at plug base and spacing in plug base's limit flange, and the big footpath hole of shoulder hole sets up the internal thread, the plug casing is the cylinder that is equipped with axial through hole, and this axial through hole is the shoulder hole, and both ends are big footpath hole, and the centre is the aperture hole, the internal thread that the big footpath hole of plug casing one end set up and the external screw thread fit that plug base one end set up, with the spacing plug nut axial on plug base, through loose joint nut and socket base fastening connection, prevent not hard up between socket core and the plug core, should set up sealed the downthehole pad that fills up of big footpath, the plug core sets up at plug base downthehole and one end inserts plug casing's aperture. By adopting the structure, the connecting plug can be firmly connected and fixed on the connecting socket, the sealing between the plug core body and the plug base and between the plug core body and the plug shell can be ensured, the assembly of the connecting plug is convenient, and the sealing of gaps among parts can be realized.

Socket base excircle middle section sets up limit flange, socket base excircle one end be equipped with fixation nut complex external screw thread, the other end be equipped with loose joint nut complex external screw thread, through limit flange and fixation nut and external screw thread fit, can fix socket base firmly on the equipment that needs the installation, can also be through loose joint nut and external screw thread fit, tightly connect connecting plug on connecting socket, prevent to take place between connecting plug and the connecting socket not hard up to the heart yearn that leads to pegging graft connects not hard up.

Socket casing, plug casing excircle middle section all are provided with the hexagon flange, but the antiskid during assembly does benefit to the installation and dismantles.

The utility model comprises a connecting socket and a connecting plug, and the connecting mode comprises threaded connection, insertion connection and the like, which can be flexibly disassembled and is convenient to install and maintain; the sealing ring, the sealing gasket, the sealing glue, the sealing plug seal, the loose joint nut, the fixing nut and the like are arranged for connection, so that the sealing ring is applicable to an explosion-proof environment and is waterproof and dustproof.

The invention is further described with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the connection plug and the connection socket according to the present invention;

fig. 3 is a schematic structural view of the connection socket of the present invention;

fig. 4 is a schematic structural diagram of the connection plug of the present invention.

Detailed Description

Referring to fig. 1 to 4, a waterproof and explosion-proof hot spot detector includes a surface thermocouple cable 11 and a compensation wire 12, wherein two ends of the surface thermocouple cable 11 are respectively provided with a connection socket 00, an end of the compensation wire 12 is provided with a connection plug 01, the connection socket 00 includes a socket housing 31, a socket base 71 and a socket core 51, the socket core 51 is in a stepped cylindrical shape, the middle is a large-diameter section, and two ends are small-diameter sections; the socket shell 31 is a cylinder with an axial through hole, the socket base 71 is a stepped cylinder with an axial through hole, the axial through holes of the socket shell 31 and the socket base 71 are stepped holes, two ends of each stepped hole are large-diameter holes, and the middle of each stepped hole is a small-diameter hole; the socket housing 31 is screwed to the socket base 71, the socket core 51 is provided in the socket housing 31 and the socket base 71, and the first seal ring 61 is provided between the socket core 51 and the socket housing 31 and the socket base 71. The small-diameter section at one end of the socket core body 51 is inserted into the small-diameter hole of the socket shell 31, the small-diameter section at the other end extends out of the small-diameter hole of the socket base 71, an external thread arranged at the small-diameter end of the socket base 71 is matched with an internal thread arranged at a large-diameter hole of the socket shell 31 to fix the socket core body 51, the socket shell 31 is provided with a first annular groove 611 corresponding to the large-diameter hole of the socket core body 51, the first sealing ring 61 is arranged in the first annular groove 611, a second annular groove 621 is arranged in the large-diameter hole of the socket base 71 for inserting the plug base 72, and the second sealing ring 62 is arranged in the second annular groove 621. The socket housing 31 is provided with a hexagonal flange 311 at the middle of its outer circumference. The surface thermocouple cable 11 is connected with the socket core 51, the core wire of the surface thermocouple cable 11 of the present embodiment is connected with the core wire of the socket core 51 in an embedded manner, the diameter of the core wire of the surface thermocouple cable 11 is smaller than that of the core wire of the socket core 51, and the core wire of the surface thermocouple cable 11 is inserted into the hole formed in the core wire of the socket core 51 for connection. A socket sealing plug 41 is arranged between the surface thermocouple cable 11 and the socket shell 31, the socket sealing plug 41 is tightly pressed by the socket plug 21 to form fixation, and organic sealing glue is filled in a gap between the socket plug 21 and the surface thermocouple cable 11. The connecting plug 01 comprises a plug shell 32, a plug base 72, a plug core 52 and a loose joint nut 8, the plug shell 32 is in threaded connection with the plug base 72, the plug core 52 is arranged in the plug shell 32 and the plug base 72, a sealing gasket 63 is arranged between the plug core 52 and the plug shell 32 as well as between the plug base 72, the plug core 52 is in a cylindrical shape, the plug base 72 is a cylinder with an axial through hole, a limiting flange 721 is arranged on the outer circle of the cylinder, the loose joint nut 8 is provided with a stepped hole, a small-diameter hole of the stepped hole is sleeved on the plug base 72 and limited on the limiting flange 721 of the plug base 72, an internal thread is arranged in a large-diameter hole of the stepped hole, the plug shell 32 is a cylinder with an axial through hole, the axial through hole is a stepped hole, two ends of the axial through hole are large-diameter holes, the middle of the axial through hole is a small-diameter hole, the internal thread is matched with an external thread arranged at one end of the plug shell 32, the loose joint nut 8 is axially limited on the plug base 72, a large-diameter hole, a sealing gasket 63 is arranged in the large-diameter hole, and one end of the plug base 72 is inserted into a small-diameter hole of the plug shell 32. And the middle section of the excircle of the socket base 71 is provided with a limiting flange 9. And one end of the excircle of the socket base 71 is provided with an external thread matched with the fixing nut 10, and the other end of the excircle of the socket base is provided with an external thread matched with the union nut 8. The compensating conductor 12 is connected with the plug core 52, the core wire of the compensating conductor 12 of the present embodiment is connected with the core wire of the plug core 52 in an embedded manner, the core wire diameter of the plug core 52 is larger than the core wire diameter of the compensating conductor 12, and the core wire of the compensating conductor 12 is inserted into the hole provided in the core wire of the plug core 52 for connection. A plug sealing plug 42 is arranged between the compensation lead 12 and the plug housing 32, and the plug sealing plug 42 is tightly pressed by the plug 22 to form a fixation. The gap between the plug 22 and the compensating conductor 12 is filled with an organic sealant. The connecting plug 01 is plugged into the connecting socket 00, the plug base 72 is inserted into the socket base 71, the core wire of the plug core 52 and the core wire of the socket core 51 form an embedded connection, the diameter of the core wire of the socket core 51 is smaller than that of the core wire of the plug core 52, and the core wire of the socket core 51 is inserted into the hole formed in the core wire of the plug core 52 for connection. The connecting plug 01 and the connecting socket 00 are fixedly connected through the threaded connection of the loose joint nut 8 and the connecting socket 00, the second sealing ring 62 is arranged between the plug base 72 and the socket base 71, and the hexagonal flange 321 is arranged at the middle section of the outer circle of the plug shell 32.

When mounting, firstly, the socket base 71 is mounted on the wall or the bracket of a designated facility through the fixing nut 10 and the limiting flange 9; then, the socket core body 51 is placed into the socket base 71, the socket base 71 is fixedly connected through the socket shell 31, the socket core body 51 is limited, the connecting end of the surface thermocouple cable 11 is inserted into the socket shell 31 to be connected with the socket core body 51, the socket sealing plug 41 sleeved on the surface thermocouple cable 11 is placed into the socket shell 31, the socket sealing plug 41 is pressed through the socket plug 21, and then the sealing glue is filled in a gap between the surface thermocouple cable 11 and the socket plug 21 to form sealing fixation; finally, the plug base 72 is placed into the socket base 71, the loose joint nut is sleeved on the plug base 72 to be fixedly connected, the plug core 52 is placed into the socket base 72 to be connected with the socket core 51 in an inserting mode, the plug shell 32 is fixedly connected with the socket base 72 in a threaded matching mode, the compensation lead 12 is inserted into the plug shell 32 to be connected with the plug core 52, the plug sealing plug 42 sleeved on the compensation lead 12 is placed into the socket shell 32, the plug sealing plug 42 is pressed by the plug 33, and then the sealing glue is filled in a gap between the compensation lead 12 and the plug 22 to form sealing fixation.

The utility model discloses be not limited to above-mentioned embodiment, the utility model discloses the installation of connection socket 00 part also can adopt following method: firstly, a socket base 71 is installed on a wall or a support of a specified facility through a fixing nut 10 and a limiting flange 9, a socket core body 51 is placed into a socket shell 31, a surface thermocouple cable 11 is placed into the socket shell 31 from the other end to be connected with the socket core body 51, the other end of the socket core body 51 is inserted into the fixed socket base 71, the socket shell 31 is fixedly connected with the socket base 71 through threaded connection, a sealing plug sleeved on the surface thermocouple cable is placed into the socket shell 31, a socket plug 21 is fixedly connected with the socket shell 31 through threaded connection, and a sealing glue is filled in a gap between the surface thermocouple cable 11 and the socket plug 21.

The utility model discloses the core comprises heart yearn and insulation protection body, and the heart yearn of socket core is wrapped up in the inside by insulation protection body.

The utility model discloses the machining precision of screw thread should accord with explosion-proof requirement, and the shell intensity of each part should also satisfy explosion-proof requirement, and the sealing washer satisfies protection level IP 66's requirement.

The invention is further described with reference to the drawings and the following detailed description.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and modifications made by those skilled in the art without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims (10)

1. The utility model provides a waterproof blast proof hot spot detector, includes surface thermocouple cable (11), compensation wire (12), its characterized in that: two ends of the surface thermocouple cable (11) are respectively provided with a connecting socket (00), the end part of the compensation lead (12) is provided with a connecting plug (01), the connecting socket (00) comprises a socket shell (31), a socket base (71) and a socket core body (51), the socket shell (31) is in threaded connection with the socket base (71), the socket core body (51) is arranged in the socket shell (31) and the socket base (71), a first sealing ring (61) is arranged between the socket core body (51) and the socket shell (31) as well as between the socket core body (51) and the socket base (71), and the surface thermocouple cable (11) is connected with the socket core body (51); the connecting plug (01) comprises a plug shell (32), a plug base (72), a plug core body (52) and a loose joint nut (8), the plug shell (32) is in threaded connection with the plug base (72), the plug core body (52) is arranged in the plug shell (32) and the plug base (72), a sealing gasket (63) is arranged between the plug core body (52) and the plug shell (32) as well as between the plug base (72), and the compensating lead (12) is connected with the plug core body (52); the connecting plug (01) is inserted into the connecting socket (00), the plug base (72) is inserted into the socket base (71), the core wire of the plug core body (52) and the core wire of the socket core body (51) form embedded connection, the connecting plug (01) and the connecting socket (00) are fixedly connected through threaded connection of the loose joint nut (8) and the connecting socket (00), and the second sealing ring (62) is arranged between the plug base (72) and the socket base (71).

2. The waterproof and explosion-proof hot spot detector according to claim 1, wherein: the core wire of the surface thermocouple cable (11) is connected with the core wire of the socket core body (51) in an embedded mode.

3. The waterproof and explosion-proof hot spot detector according to claim 1, wherein: the core of the compensation conductor (12) is connected with the core of the plug core (52) in an embedding manner.

4. The waterproof and explosion-proof hot spot detector according to claim 2 or 3, characterized in that: the diameter of a core wire of the surface thermocouple cable (11) is smaller than that of a core wire of the socket core body (51), the core wire of the surface thermocouple cable (11) is inserted into a hole formed in the core wire of the socket core body (51) to be connected, the diameter of the core wire of the socket core body (51) is smaller than that of the core wire of the plug core body (52), the core wire of the socket core body (51) is inserted into the hole formed in the core wire of the plug core body (52) to be connected, the diameter of the core wire of the plug core body (52) is larger than that of the compensation conductor (12), and the core wire of the compensation conductor (12) is inserted into the hole formed in the core wire of the plug core body (52) to be connected.

5. The waterproof and explosion-proof hot spot detector according to claim 1, wherein: a socket sealing plug (41) is arranged between the surface thermocouple cable (11) and the socket shell (31), and the socket sealing plug (41) is tightly pressed by a socket plug (21) to form fixation; a plug sealing plug (42) is arranged between the compensation lead (12) and the plug shell (32), and the plug sealing plug (42) is tightly pressed by the plug (22) to form fixation.

6. The waterproof and explosion-proof hot spot detector according to claim 5, wherein: and organic sealant is filled in a gap between the socket plug (21) and the surface thermocouple cable (11), and organic sealant is filled in a gap between the plug (22) and the compensation lead (12).

7. The waterproof and explosion-proof hot spot detector according to claim 1, wherein: the socket core body (51) is in a stepped cylindrical shape, the middle part is a large-diameter section, and the two ends are small-diameter sections; the socket shell (31) is a cylinder with an axial through hole, the socket base (71) is a stepped cylinder with an axial through hole, the axial through holes of the socket shell (31) and the socket base (71) are stepped holes, two ends of each stepped hole are large-diameter holes, and the middle of each stepped hole is a small-diameter hole; the one end path section of socket core body (51) inserts in the path hole of socket shell (31), and the path hole of socket base (71) is extended to other end path section, and the external screw thread that the path end of socket base (71) set up cooperates with the internal thread that a path hole of socket shell (31) set up, and is fixed with socket core body (51), socket shell (31) correspond and set up first ring channel (611) in the path hole of socket core body (51), first sealing washer (61) set up in first ring channel (611), set up second ring channel (621) in the confession plug base (72) male path hole of socket base (71), second sealing washer (62) set up in second ring channel (621).

8. The waterproof and explosion-proof hot spot detector according to claim 1, wherein: the plug core body (52) is in a cylindrical shape, the plug base (72) is a cylinder provided with an axial through hole, a limiting flange (721) is arranged on the outer circle of the cylinder, a stepped hole is formed in the loose joint nut (8), the small-diameter hole of the stepped hole is sleeved on the plug base (72) and limited to the limiting flange (721) of the plug base (72), an internal thread is arranged in the large-diameter hole of the stepped hole, the plug shell (32) is a cylinder provided with the axial through hole, the axial through hole is the stepped hole, the two ends of the axial through hole are the large-diameter holes, the middle of the axial through hole is the small-diameter hole, the internal thread arranged in the large-diameter hole at one end of the plug shell (32) is matched with the external thread arranged at one end of the plug base (72), the loose joint nut (8) is axially limited on the plug base (72), a sealing gasket (63) is arranged in the large-diameter hole, and the plug core body (52) is arranged in the small-diameter hole of the plug base (72) and one end of the plug shell (32) is inserted into the small-diameter hole.

9. The waterproof and explosion-proof hot spot detector according to claim 1, wherein: socket base (71) excircle middle section sets up spacing flange (9), socket base (71) excircle one end be equipped with fixation nut (10) complex external screw thread, the other end be equipped with loose joint nut (8) complex external screw thread.

10. The waterproof and explosion-proof hot spot detector according to claim 1, wherein: the outer circle middle sections of the socket shell (31) and the plug shell (32) are provided with hexagonal flanges.

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