CN204578022U - Thermocouple compensates terminal connections case - Google Patents
Thermocouple compensates terminal connections case Download PDFInfo
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- CN204578022U CN204578022U CN201520227387.4U CN201520227387U CN204578022U CN 204578022 U CN204578022 U CN 204578022U CN 201520227387 U CN201520227387 U CN 201520227387U CN 204578022 U CN204578022 U CN 204578022U
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- casing
- cable
- chamber door
- thermocouple
- joint body
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Abstract
The utility model discloses a kind of thermocouple and compensate terminal connections case, be intended to solve in the use procedure of existing thermocouple terminal terminal box and easily error caused to transmission data, and the deficiency of drainage easily appears in terminal box.This utility model comprises casing, the chamber door be hinged on casing, casing is provided with a circle seal groove towards the end face edge of chamber door, chamber door inner surface is connected with the sealing ring of a circle and the corresponding adaptive projection of seal groove, near inner wall position, one circle trough is installed in casing, in casing, some row's splicing ears are installed in centre position, and casing lower end is fastenedly connected permanent joint, the tight sleeved electric cable of permanent joint, cable one end is connected on splicing ear, and the cable other end runs through casing.Thermocouple compensates terminal connections case and in use not easily causes thermocouple data transmission error, and terminal box not easily occurs drainage, avoids the phenomenon occurring wiring inefficacy or wiring short circuit because of leaking.
Description
Technical field
The utility model relates to a kind of terminal box, and more particularly, it relates to one and guarantees that thermocouple data transmit thermocouple accurately and compensate terminal connections case.
Background technology
In temperature survey for steam, flue gas and liquid in the project of current power station, the on-the-spot measuring principle all adopting thermocouple of major part, after measuring point installs, for saving expensive plain conductor material, the compensating wire that usual employing relative price is cheap compensates wiring, the compensating wire that single-point thermocouple is corresponding directly accesses the Upper systems such as DCS or PLC, can cause the waste of cable.On this basis, the mode concentrated is adopted to carry out data acquisition nearby, concentrated wiring is carried out often through the one or more concentrated terminal box of installation, gathered by the wire of several single core is that a bus goes to scene, but can to real data measuring tape measure error in a lot of terminal box use procedure at present, and terminal box easily occurs drainage, thus wiring inefficacy is caused even to occur wiring short circuit.
Utility model content
The utility model overcomes in the use procedure of existing thermocouple terminal terminal box and easily causes error to transmission data, and easily there is drainage in terminal box, thus cause wiring inefficacy even to occur the deficiency of wiring short circuit, provide a kind of thermocouple and compensate terminal connections case, it in use not easily causes data transmission error, not easily there is drainage in terminal box, avoids the phenomenon occurring wiring inefficacy or wiring short circuit because of leaking.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of thermocouple compensates terminal connections case, comprise casing, be hinged on the chamber door on casing, casing is provided with a circle seal groove towards the end face edge of chamber door, chamber door inner surface is connected with the sealing ring of a circle and the corresponding adaptive projection of seal groove, near inner wall position, one circle trough is installed in casing, in casing, some row's splicing ears are installed in centre position, casing lower end is fastenedly connected permanent joint, the tight sleeved electric cable of permanent joint, cable one end is connected on splicing ear, the cable other end runs through casing.
Many thermocouples in boiler body are concentrated nearby by independently compensating wire and are connected on splicing ear that thermocouple compensates in terminal connections case, by the transfer of splicing ear, cable is connected on the DCS terminal board of master-control room after merging combination, instrument signal is joined seamlessly to DCS system terminal board, connects like this to arrange and not easily cause data transmission error.Be provided with sealing ring between chamber door and casing, after chamber door is shut, sealing ring is closely plugged in seal groove, chamber door only is fitted on casing, effectively prevents drainage.Cable is by being socketed on permanent joint, and permanent joint is fastenedly connected on casing, and cable is not easily drawn out, and ensures the reliable connection of cable.Thermocouple compensates terminal connections case and in use not easily causes thermocouple data transmission error, and terminal box not easily occurs drainage, avoids the phenomenon occurring wiring inefficacy or wiring short circuit because of leaking.
As preferably, edge relative with casing articulated position on chamber door is hinged with limit buckle, and limit buckle is provided with spacing hole, and casing is provided with the limited post with spacing hole adaptation, and spacing hole is plugged on limited post.After chamber door is shut, the spacing hole cover in limit buckle is received on limited post, chamber door is connected with casing more reliable, not easily occurs the phenomenon that chamber door is opened automatically.
As preferably, the outer wall that casing is relative with chamber door is all fixedly connected with installation hanger near angle position, installs on hanger and be equipped with installing hole.The installation location that hanger facilitates terminal box is installed.
As preferably, permanent joint comprises joint body, clamp nut, binding nut, cable-through hole is provided with in the middle of joint body, cable jacket is connected in cable-through hole, joint body outer wall is provided with positive stop lug boss, casing is provided with the fastener hole with joint body adaptation, joint body is plugged in fastener hole, clamp nut is connected to the upper end of joint body, positive stop lug boss is connected on cabinet exterior, gasket seal is provided with between clamp nut and cabinet wall, O shape circle is provided with between positive stop lug boss upper surface and cabinet exterior, cable-through hole lower end in joint body is the tight lock part presenting little lower large round platform cavernous structure, in tight lock part, adaptation is connected with the rubber clamp of round platform cavernous structure, clamp is socketed on cable, gap is provided with between clamp upper end and tight lock part upper end, clamp lower end is arranged on the below of joint body lower end, joint body lower end is threaded binding nut, binding nut is socketed on cable, clamp lower end is connected on binding nut inner bottom surface.
Permanent joint serves good fixation to cable; in the process that binding nut is upwards tightened; clamp is pushed upwardly; constantly increase the clamping force of cable, cable is linked together with permanent joint firmly, and joint body is connected on casing by clamp nut; easy accessibility; gasket seal and O shape circle add the sealing property that permanent joint is connected with casing, and gasket seal and O shape are enclosed and had buffer shock-absorbing effect, play a very good protection to cable.
As preferably, cable is socketed with protective casing, cable is socketed with metal sizing flexible pipe between protective casing and permanent joint.Protective casing protection cable, the limited cable that prevents is aging, and metal sizing flexible pipe can bend sizing, facilitates the mounting arrangement of cable multi-angle.
As preferably, position, each link rim of the mouth arranges two panels terminal plate, and a slice terminal plate adopts the forging of NiGr material to form, and another sheet terminal plate adopts NiSi forging to form.NiGr-NiSi terminal plate, node capacity is 220VAC 5A, and as core component, a slice adopts the forging of NiGr material to form, and a slice adopts NiSi forging to form, and ensures that thermocouple data accurately transmit, terminal plate easy accessibility.
Compared with prior art, the beneficial effects of the utility model are: thermocouple compensates terminal connections case and in use not easily causes thermocouple data transmission error, not easily there is drainage in terminal box, avoids the phenomenon occurring wiring inefficacy or wiring short circuit because of leaking.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the cutaway view of permanent joint of the present utility model;
In figure: 1, casing, 2, chamber door, 3, seal groove, 4, sealing ring; 5, trough, 6, splicing ear, 7, permanent joint, 8, cable; 9, limit buckle, 10, spacing hole, 11, limited post, 12, hanger is installed; 13, installing hole, 14, joint body, 15, clamp nut, 16, binding nut; 17, cable-through hole, 18, positive stop lug boss, 19, gasket seal, 20, O shape circle; 21, tight lock part, 22, clamp, 23, protective casing, 24, sizing flexible pipe.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
Embodiment: a kind of thermocouple compensates terminal connections case (see accompanying drawing 1), comprise the casing 1 of cuboid, the rectangle chamber door 2 be hinged on casing, casing is provided with the seal groove 3 of the rectangular box-like structure of a circle towards the end face edge of chamber door, chamber door inner surface is connected with the sealing ring 4 of a circle and the corresponding adaptive projection of seal groove, edge relative with casing articulated position on chamber door is hinged with limit buckle 9, limit buckle is provided with spacing hole 10, casing is provided with the limited post 11 with spacing hole adaptation, and spacing hole is plugged on limited post.The outer wall that casing is relative with chamber door is all fixedly connected with near angle position hanger 12 is installed, install on hanger and be equipped with installing hole 13.Near inner wall position, one circle trough 5 is installed in casing, in casing, two row's splicing ears 6 are installed in centre position, splicing ear is fixedly connected with casing by support, casing lower end is fastenedly connected permanent joint 7, the tight sleeved electric cable 8 of permanent joint, cable one end is connected on splicing ear, and the cable other end runs through casing.Permanent joint (see accompanying drawing 2) comprises joint body 14, clamp nut 15, binding nut 16, cable-through hole 17 is provided with in the middle of joint body, cable jacket is connected in cable-through hole, joint body outer wall is provided with positive stop lug boss 18, casing is provided with the fastener hole with joint body adaptation, joint body is plugged in fastener hole, clamp nut is connected to the upper end of joint body, positive stop lug boss is connected on cabinet exterior, gasket seal 19 is provided with between clamp nut and cabinet wall, O shape circle 20 is provided with between positive stop lug boss upper surface and cabinet exterior, cable-through hole lower end in joint body is the tight lock part 21 presenting little lower large round platform cavernous structure, in tight lock part, adaptation is connected with the rubber clamp 22 of round platform cavernous structure, clamp is socketed on cable, gap is provided with between clamp upper end and tight lock part upper end, clamp lower end is arranged on the below of joint body lower end, joint body lower end is threaded binding nut, binding nut is socketed on cable, clamp lower end is connected on binding nut inner bottom surface.Cable is socketed with L shape protective casing 23, cable is socketed with metal sizing flexible pipe 24 between protective casing and permanent joint.Position, each link rim of the mouth arranges two panels terminal plate, and a slice terminal plate adopts the forging of NiGr material to form, and another sheet terminal plate adopts NiSi forging to form.To the thermocouple of K calibration, NiGr-NiSi terminal plate, node capacity is 220VAC 5A, and as core component, a slice adopts the forging of NiGr material to form, and a slice adopts NiSi forging to form, and ensures that thermocouple data accurately transmit, terminal plate easy accessibility.
Many thermocouples in boiler body are concentrated nearby by independently compensating wire and are connected on splicing ear that thermocouple compensates in terminal connections case, by the transfer of splicing ear, cable is connected on the DCS terminal board of master-control room after merging combination, instrument signal is joined seamlessly to DCS system terminal board, connects like this to arrange and not easily cause data transmission error.Be provided with sealing ring between chamber door and casing, after chamber door is shut, sealing ring is closely plugged in seal groove, chamber door only is fitted on casing, effectively prevents drainage.Cable is by being socketed on permanent joint, and permanent joint is fastenedly connected on casing, and cable is not easily drawn out, and ensures the reliable connection of cable.Thermocouple compensates terminal connections case and in use not easily causes thermocouple data transmission error, and terminal box not easily occurs drainage, avoids the phenomenon occurring wiring inefficacy or wiring short circuit because of leaking.
Above-described embodiment is one of the present utility model preferably scheme, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (6)
1. a thermocouple compensates terminal connections case, comprise casing, the chamber door be hinged on casing, it is characterized in that, casing is provided with a circle seal groove towards the end face edge of chamber door, chamber door inner surface is connected with the sealing ring of a circle and the corresponding adaptive projection of seal groove, near inner wall position, one circle trough is installed in casing, in casing, some row's splicing ears are installed in centre position, casing lower end is fastenedly connected permanent joint, the tight sleeved electric cable of permanent joint, cable one end is connected on splicing ear, and the cable other end runs through casing.
2. thermocouple according to claim 1 compensates terminal connections case, it is characterized in that, edge relative with casing articulated position on chamber door is hinged with limit buckle, and limit buckle is provided with spacing hole, casing is provided with the limited post with spacing hole adaptation, and spacing hole is plugged on limited post.
3. thermocouple according to claim 1 compensates terminal connections case, it is characterized in that, the outer wall that casing is relative with chamber door is all fixedly connected with installation hanger near angle position, installs on hanger and is equipped with installing hole.
4. the thermocouple according to claim 1 or 2 or 3 compensates terminal connections case, it is characterized in that, permanent joint comprises joint body, clamp nut, binding nut, cable-through hole is provided with in the middle of joint body, cable jacket is connected in cable-through hole, joint body outer wall is provided with positive stop lug boss, casing is provided with the fastener hole with joint body adaptation, joint body is plugged in fastener hole, clamp nut is connected to the upper end of joint body, positive stop lug boss is connected on cabinet exterior, gasket seal is provided with between clamp nut and cabinet wall, O shape circle is provided with between positive stop lug boss upper surface and cabinet exterior, cable-through hole lower end in joint body is the tight lock part presenting little lower large round platform cavernous structure, in tight lock part, adaptation is connected with the rubber clamp of round platform cavernous structure, clamp is socketed on cable, gap is provided with between clamp upper end and tight lock part upper end, clamp lower end is arranged on the below of joint body lower end, joint body lower end is threaded binding nut, binding nut is socketed on cable, clamp lower end is connected on binding nut inner bottom surface.
5. the thermocouple according to claim 1 or 2 or 3 compensates terminal connections case, it is characterized in that, cable is socketed with protective casing, cable is socketed with metal sizing flexible pipe between protective casing and permanent joint.
6. the thermocouple according to claim 1 or 2 or 3 compensates terminal connections case, and it is characterized in that, position, each link rim of the mouth arranges two panels terminal plate, and a slice terminal plate adopts the forging of NiGr material to form, and another sheet terminal plate adopts NiSi forging to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227387.4U CN204578022U (en) | 2015-04-15 | 2015-04-15 | Thermocouple compensates terminal connections case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227387.4U CN204578022U (en) | 2015-04-15 | 2015-04-15 | Thermocouple compensates terminal connections case |
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| Publication Number | Publication Date |
|---|---|
| CN204578022U true CN204578022U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520227387.4U Active CN204578022U (en) | 2015-04-15 | 2015-04-15 | Thermocouple compensates terminal connections case |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847635A (en) * | 2018-06-29 | 2018-11-20 | 苏州优康通信设备有限公司 | A kind of communications cable terminal box |
-
2015
- 2015-04-15 CN CN201520227387.4U patent/CN204578022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847635A (en) * | 2018-06-29 | 2018-11-20 | 苏州优康通信设备有限公司 | A kind of communications cable terminal box |
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Address after: 310014, room 3, floor 15, 355 Daguan Road, Gongshu District, Zhejiang, Hangzhou, China Patentee after: Platinum Energy Environmental Engineering Co., Ltd. Address before: Zijingang business building No. 656 ancient Pier Road Hangzhou city Zhejiang province Xihu District 310030 11 floor Patentee before: Zhejiang Borui Energy Environment Engineering Co., Ltd. |