Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model is directed to providing a quick-dismantling type multi-point thermocouple/resistor for a multi-core explosion-proof connector, which is used for solving the problems of connection and difficult arrangement of the thermocouple explosion-proof device in the prior art.
To achieve the above and other related objects, the present utility model provides a multi-core explosion-proof connector quick-disassembly type multi-point thermocouple/resistor, which comprises an explosion-proof connector plug and a thermocouple body, wherein the explosion-proof connector plug can be connected with a lead wire, the thermocouple body is connected to the explosion-proof connector plug, and the thermocouple body can be connected with the lead wire through the explosion-proof connector plug.
Optionally, the thermocouple body includes protection tube and even material, the one end of protection tube is the installation opening, the other end of protection tube is confined blind end, even material passes through the installation opening along the length direction of protection tube sets up in the protection tube.
Optionally, one end of the coupling material close to the blind end of the protection tube is a hot end, two or more coupling materials are provided, and the intervals between the hot ends of the coupling materials and the blind ends of the protection tube are different.
Optionally, the protective tube is filled with an insulating medium.
Optionally, the protection pipe is provided with a mounting flange, and a plane where the mounting flange is located intersects with the length direction of the protection pipe.
Optionally, a positioning step is arranged on one side, close to the blind end of the protection tube, of the mounting flange, and the plane where the positioning step is located is perpendicular to the length direction of the protection tube.
Optionally, the protection tube is provided with the fixed retaining ring that is provided with on installation open-ended one end, still wear to be equipped with connecting nut on the protection tube, the protection tube passes through the retaining ring reaches connecting nut with explosion-proof plug can dismantle the connection.
Optionally, the coupling material is an armored thermocouple.
Optionally, the anti-explosion plug comprises an anti-explosion plug and an anti-explosion socket matched with the anti-explosion plug, and the anti-explosion plug is matched and connected with the anti-explosion socket.
Optionally, the explosion-proof socket is connected to the thermocouple body, and the explosion-proof plug is used for being connected with the lead wire.
As described above, the quick-dismantling type multi-point thermocouple/resistor of the multi-core explosion-proof connector provided by the utility model has the following beneficial effects: the thermocouple body is connected to the explosion-proof connector, an explosion-proof junction box is not required to be additionally connected, and the explosion-proof connector is convenient to connect and insert and simple to operate. The explosion-proof plug has small volume, is convenient to arrange and has small requirement on the operation space.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Please refer to fig. 1 and 2. The embodiment provides a quick-release type multipoint thermocouple/resistor of a multi-core explosion-proof connector, which comprises an explosion-proof connector plug and a thermocouple body, wherein the thermocouple body is connected to the explosion-proof connector plug. The explosion-proof plug can be connected with the lead wire 8, and the thermocouple body can be connected with the lead wire 8 through the explosion-proof plug after being connected with the explosion-proof plug. Specifically, the explosion-proof plug comprises an explosion-proof plug 1 and an explosion-proof socket 2 which are matched with each other, the explosion-proof socket 2 is connected to the thermocouple body, and the explosion-proof plug 1 is used for being connected with a lead wire 8.
The thermocouple body is connected to the explosion-proof connector, so that an explosion-proof junction box is not required to be additionally connected, the explosion-proof connector is convenient to connect and insert, and the operation is simple. Meanwhile, the explosion-proof plug is small in size, convenient to arrange and small in operation space requirement.
In this embodiment, the thermocouple body includes a protection tube 5 and a coupling material 7, one end of the protection tube 5 is an installation opening, and the other end of the protection tube 5 is a closed blind end. In this embodiment, the blind end of the protection tube 5 is welded and sealed by a plug 9.
The coupling material 7 is provided in the protection pipe 5 in the length direction of the protection pipe 5 through the installation opening. The protection tube 5 can protect the coupling material 7, prevent the coupling material 7 from being in direct contact with an object to be detected, avoid the contamination of the coupling material 7, and prolong the service life of the thermocouple.
In this embodiment, the coupling material 7 is an armored thermocouple, one end of the coupling material 7 near the blind end of the protection tube 5 is a hot end, and the other end of the coupling material 7 is a cold end. The cold ends of the coupling materials 7 are fixed together, and the hot ends of the coupling materials 7 extend into the protection tube 5 and are used for detecting temperature. The number of the coupling materials 7 is more than two, and the intervals between the hot ends and the blind ends of the coupling materials 7 are different, so that the temperature at more than two points is detected. In this embodiment, the number of the coupling members 7 is 7, and the extending lengths of the 7 coupling members 7 are L1 to L7 in order.
In this embodiment, the protection tube 5 is filled with an insulating medium, so as to insulate the thermocouple from the protection tube 5. In the embodiment, the insulating medium adopts the magnesium oxide powder, the magnesium oxide powder has good insulating effect, is a common industrial material and is easy to obtain.
In this embodiment, the protection tube 5 is provided with a mounting flange 6, and a plane on which the mounting flange 6 is located intersects with the length direction of the protection tube 5. In this embodiment, the mounting flange 6 is welded to the protective tube 5. The plane of the mounting flange 6 is perpendicular to the length direction of the protection pipe 5. The mounting flange 6 is provided with a mounting through hole, so that the thermocouple is conveniently mounted by adopting a bolt and the like.
A positioning step is arranged on one side of the mounting flange 6, which is close to the blind end of the protection tube 5, and the plane where the positioning step is positioned is also perpendicular to the length direction of the protection tube 5. The size of the positioning step is smaller than that of the mounting flange 6, and the mounting through hole is leaked, so that the positioning step is convenient to process, and interference between the positioning step and the mounting through hole is avoided.
In this embodiment, the protection tube 5 is provided with the retaining ring 4 through welded fastening on the one end of installation opening, wears to be equipped with coupling nut 3 on the protection tube 5, is provided with on the explosion-proof plug with coupling nut 3 complex screw thread. The connecting nut 3 is matched with the check ring 4, and the protection pipe 5 is detachably connected with the explosion-proof plug through the check ring 4 and the connecting nut 3.
In summary, the quick-dismantling type multipoint thermocouple/resistor of the multi-core explosion-proof connector provided by the embodiment does not need to be additionally connected with an explosion-proof junction box, and the explosion-proof connector is convenient to connect and insert and simple to operate. The explosion-proof plug has small volume, is convenient to arrange and has small requirement on the operation space.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.