CN203025275U - Plug-in feed sensing device - Google Patents
Plug-in feed sensing device Download PDFInfo
- Publication number
- CN203025275U CN203025275U CN 201220736882 CN201220736882U CN203025275U CN 203025275 U CN203025275 U CN 203025275U CN 201220736882 CN201220736882 CN 201220736882 CN 201220736882 U CN201220736882 U CN 201220736882U CN 203025275 U CN203025275 U CN 203025275U
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- China
- Prior art keywords
- feed
- equipment box
- plug
- sensing device
- rodlike
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Abstract
The utility model discloses a plug-in feed sensing device for detecting a feed state of an underground power supply circuit, and the plug-in feed sensing device belongs to the technical field of mine safety equipment. The device comprises a feed inductor body which is installed on the side wall of an equipment box body, wherein the feed inductor body is provided with an inductor head part with an internally arranged control circuit and a rodlike detecting end which is connected with the lower end of the inductor head part; and the bottom end of the rodlike detecting end is closed, the lower end of the rodlike detecting end extends into the equipment box body, and a feed induction head is arranged in the rodlike detecting end and connected with a circuit board of the control circuit. The device has the beneficial effects that the detection sensitivity and stability are improved, so that the device has the advantages of wide measurement scope, good compatibility, power on self test, sensitivity correction, state display and the like; and inserts are connected with a connecting post in the equipment box body through connecting wires, so that the device has high detection sensitivity and a good comprehensive effect.
Description
Technical field
The utility model relates to a kind of plug-in type feed sensing device for underground power supply used line fed state-detection, belongs to mine safety equipment technology field.
Background technology
The colliery subsurface environment is special, and the cable of employing must be fire-retardant or nonflammable, and elongation and the tensile strength of cable are had relatively high expectations.Under coal mine, usually need the situations such as device powers down, in order to ensure coal mine downhole safety production, whether correctly the flexecutive need to understand equipment outage accurately, incorrect outage can easy cause damage of equipment, casualties and more great coal mining accident.Coal mining enterprise adopts feed state sensor usually, circuit breaker under coal mine is carried out the feedback monitoring that carries out of powering-off state.This sensor is also one of major equipment of coal mine gas supervisory system.Cable under coal mine adopts screen layer, and traditional feed sensor is padlock type, and the cable that is arranged on screen layer detects outward.When electric current is arranged in circuit but conductively-closed layer when masking, traditional sensor can not monitor, and this has just affected the accuracy that detects.
Summary of the invention
The technical problems to be solved in the utility model is to provide that a kind of detection sensitivity is high, good stability, wide, the compatible good plug-in type feed sensing device of measurement range.
In order to solve the problems of the technologies described above, plug-in type feed sensing device of the present utility model, comprise the feed sensor body that is arranged on the equipment box sidewall, the feed sensor body has inductor head and bar-shaped test side that is connected to inductor head subordinate end that an inside is equipped with control circuit; The bottom of bar-shaped test side is sealed and the lower end of bar-shaped test side is extend in equipment box, is provided with the feed inductive head that is connected with the circuit board of control circuit in bar-shaped test side.
The bottom of described bar-shaped test side is provided with a groove, is provided with an inserts in groove, and inserts is fixed in groove by contact screw, and described inserts is connected on binding post in equipment box by connecting wire.
The beneficial effects of the utility model are:
Because feed sensor body of the present utility model is placed on the equipment box sidewall, the bottom of bar-shaped test side is sealed and the lower end of bar-shaped test side is extend in equipment box, arrange thus and improved detection sensitivity and stability, thereby make it have the advantages such as wide, the compatible good and startup self-detection of measurement range, sensitivity correction, state demonstration, inserts is connected on binding post in equipment box by connecting wire, make its detection sensitivity higher, resultant effect is better.
Description of drawings
Fig. 1 is the structural representation of the utility model plug-in type feed sensing device.
Embodiment
Below in conjunction with the drawings and specific embodiments, plug-in type feed sensing device of the present utility model is described in further detail.
As shown in the figure, plug-in type feed sensing device of the present utility model, comprise the feed sensor body 2 that is arranged on equipment box 1 sidewall, feed sensor body 2 has inductor head 3 and bar-shaped test side 4 that is connected to inductor head 3 lower ends that an inside is equipped with control circuit; The bottom of bar-shaped test side 4 is sealed and the lower end of bar-shaped test side 4 is extend in equipment box 1, is provided with the feed inductive head 5 that is connected with the circuit board 6 of control circuit in bar-shaped test side 4.
On the basis of such scheme, further be provided with a groove in the bottom of bar-shaped test side 4, be provided with an inserts 7 in groove, inserts 7 is fixed in groove by contact screw 8, inserts 7 is connected on the interior binding post 10 of equipment box 1 by connecting wire 9, make thus its detection sensitivity higher, resultant effect is better.
Claims (2)
1. plug-in type feed sensing device, it is characterized in that: comprise the feed sensor body (2) that is arranged on equipment box (1) sidewall, described feed sensor body (2) has inductor head (3) and bar-shaped test side (4) that is connected to inductor head (3) lower end that an inside is equipped with control circuit; The bottom of described bar-shaped test side (4) is sealed and the lower end of bar-shaped test side (4) is extend in equipment box (1), is provided with the feed inductive head (5) that is connected with the circuit board (6) of control circuit in described bar-shaped test side (4).
2. according to plug-in type feed sensing device claimed in claim 1, it is characterized in that: the bottom of described bar-shaped test side (4) is provided with a groove, be provided with an inserts (7) in groove, inserts (7) is fixed in groove by contact screw (8), and described inserts (7) is connected on the interior binding post (10) of equipment box (1) by connecting wire (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736882 CN203025275U (en) | 2012-12-28 | 2012-12-28 | Plug-in feed sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736882 CN203025275U (en) | 2012-12-28 | 2012-12-28 | Plug-in feed sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025275U true CN203025275U (en) | 2013-06-26 |
Family
ID=48649254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220736882 Expired - Lifetime CN203025275U (en) | 2012-12-28 | 2012-12-28 | Plug-in feed sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025275U (en) |
-
2012
- 2012-12-28 CN CN 201220736882 patent/CN203025275U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |