CN201698915U - Explosion-proof vacuum electromagnetic starter for mining - Google Patents
Explosion-proof vacuum electromagnetic starter for mining Download PDFInfo
- Publication number
- CN201698915U CN201698915U CN2010202450414U CN201020245041U CN201698915U CN 201698915 U CN201698915 U CN 201698915U CN 2010202450414 U CN2010202450414 U CN 2010202450414U CN 201020245041 U CN201020245041 U CN 201020245041U CN 201698915 U CN201698915 U CN 201698915U
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- insulating
- conducting rod
- bolt
- head
- nut
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Abstract
The utility model discloses an explosion-proof vacuum electromagnetic starter for mining. The utility model herein comprises a conducting bar, which is one-step forming of red copper with its head in square block, clamping end face of the square block being provided with an arc groove, the conducting bar being disposed in the center of an insulating junction block and an insulating sleeve, the rear end of the insulating sleeve being threaded through the hole on a fixing plate, an insulating gasket being sleeved on the insulating sleeve, the insulating gasket and the fixing plate being fixed through the insulating gasket nuts, the rear end of the conducting bar being provided with threads, inner cable connector lugs being fastened by fastening nuts of connector lugs; wherein one end of the head of a terminal post is provided with two bolts, on end of the bolt being connected to the insulating junction block which is fastened by a bolt fastening nut, the other end of the bolt being provided with a clamp, out-connected cables being clamped in the arc groove of the square end face of the conducting bar through the clamp nuts of the bolts so as to form fixed connecting with the clamp.The utility model has the advantages of firm connection, good conductance performance, no heating tendency to cause accident, and high safety index.
Description
Technical field
The utility model belongs to the explosion-proof electric apparatus technology, especially the binding post of mine explosion-suppression vacuum electromagnetic starter.
Background technology
Binding post is to be used for the vitals that the flame-proof switch external cable is connected with internal wiring, binding post is fixed on the wire connection cavity and the fixed head between the main chamber of explosion-proof electric apparatus switch, the screw rod that conducting rod adopts a brass material in traditional binding post in insulating sleeve by the pressing plate of two bolts on the limit by the top, the cable clamping is wherein fixed, contact-making surface is less relatively, be difficult for gripping firm and solid, thereby be easy to generate resistance and increase, two sections copper spares of conducting rod in the traditional wired post are threaded simultaneously, this makes the resistance of conducting rod increase, binding post generates heat easily even burns out, the product safety reliability is reduced, designed the binding post of mine explosion-suppression vacuum electromagnetic starter of the present utility model at above-mentioned defective.
Summary of the invention
The purpose of this utility model provides a kind of binding post of mine explosion-suppression vacuum electromagnetic starter of the less difficult heating of security reliability resistance that improves product, claim the flame-proof switch binding post again, the conducting rod of this binding post is made with the red copper of low-resistivity, and its resistivity is 0.018 Ω .mm
2/ m, and conducting rod is made for the brass screw rod in traditional binding post, its resistivity is 0.071 Ω .mm
2/ m, so the red copper conducting rod is littler than the resistivity of brass conductive bar, the electric conductivity of red copper conducting rod is better than the brass conductive bar, and the moulding of this binding post employing time processing, significantly improves than traditional conducting rod electric conductivity.Avoided seriously generating heat because of poor electric conductivity causes electric pole, burnt out binding post, the power supply short circuit electric arc that cable is come off cause burns wire connection cavity and the gas explosion accident that causes.
The structure of this binding post mainly comprises: pressing plate, two bolts, insulation joint seat, insulating sleeve, conducting rod, fixed head, insulating washer, clamp nut, inside cable connector lug, cable clamp nut, external cable line, two pieces of panel nut, two junction block clamp nuts.The head of conducting rod is a square block, the clamping face of square block is provided with an arc groove, help increasing the clamping contact area of cable, conducting rod is located at the center of insulation joint seat and insulating sleeve, the tail end of insulated conduit passes the set hole of fixed head, insulating washer is inserted on the insulating sleeve, clamp nut by insulating washer is fixed insulating washer and fixed head, the tail end of conducting rod is provided with screw thread, fastening by nut to inner cable lug, the head end of binding post is provided with two bolts, one end of bolt is connected with the insulation joint seat, and by the bolted nut that junction block is fastening, the other end of bolt is provided with pressing plate, by panel nut the external cable wire clamp is held in the arc groove that is fixed on conducting rod square head portion end face with pressing plate between form and firmly be connected.
Adopt the beneficial effect of the technical program: inside and outside cable is connected firmly, and electric conductivity is good, is not easy binding post to be burnt accidents caused because of heating, improves the security reliability of flame-proof switch.
Description of drawings
Fig. 1 is the binding post structure chart of mine explosion-suppression vacuum electromagnetic starter;
Among the figure: 1-pressing plate, 2-bolt, 3-insulation joint seat, 4-insulating sleeve, 5-conducting rod, 6-fixed head, 7-insulating washer, 8-washer nut, 9-inside cable connector lug, 10-connector lug clamp nut, 11-panel nut, 12-external cable line, 13-bolt nut.
Embodiment
The binding post of mine explosion-suppression vacuum electromagnetic starter described in the utility model, its embodiment, details are as follows for the contrast accompanying drawing: its structure mainly comprises pressing plate 1, bolt 2, insulation joint seat 3, insulating sleeve 4, conducting rod 5, fixed head 6, insulating washer 7, washer nut 8, inside cable connector lug 9, connector lug clamp nut 10, panel nut 11, external cable line 12, bolt nut 13; Conducting rod 5 is by the moulding of red copper material time processing, its head is made as square block, the clamping end face of square block is provided with arc groove, conducting rod 5 is located at the center of insulation joint seat 3 and insulating sleeve 4, and the tail end of insulating sleeve 4 passes the hole of establishing on the fixed head 6, and insulating washer 7 is enclosed within on the insulating sleeve 4, nut 8 by insulating washer, insulating washer 7 is fixing with fixed head 6, and the tail end of conducting rod 5 is provided with screw thread, and is fastening by the inner cable lug of 11 pairs of connector lug clamp nuts 10; Head one end of binding post is provided with two bolts 2, one end of bolt 2 is connected with insulation joint seat 3, by bolted nut 13 that insulation joint seat 3 is fastening, the other end of bolt 2 is provided with pressing plate 1, by the panel nut on the bolt 2 11, external cable line 12 is clamped in the arc groove of square head portion end face of conducting rod 5 with pressing plate 1 between form and firmly be connected.It is corresponding with the square spigot end arc connected in star face of conducting rod 5 that pressing plate 1 also is made as arc-shaped concave.
Claims (2)
1. the binding post of a mine explosion-suppression vacuum electromagnetic starter, it is characterized in that: conducting rod (5) is by the one-shot forming of red copper material, its head is made as square block, the clamping end face of square block is provided with arc groove, conducting rod (5) is located at the center of insulation joint seat (3) and insulating sleeve (4), the tail end of insulating sleeve (4) passes the hole of establishing on the fixed head (6), insulating washer (7) is enclosed within on the insulating sleeve (4), by insulating washer nut (8) that insulating washer (7) and fixed head (6) is fixing, the afterbody of conducting rod (5) is provided with screw thread, and is fastening to inner cable lug (10) by connector lug clamp nut (11); Head one end of binding post is provided with two bolts (2), one end of bolt (2) is connected with insulation joint seat (3), by bolted nut (13) that insulation joint seat (3) is fastening, the other end of bolt (2) is provided with pressing plate (1), by the panel nut (11) on the bolt (2) external cable line (12) is clamped in the arc groove of square head portion end face of conducting rod (5) with pressing plate (1) between form and firmly be connected.
2. according to the binding post of the mine explosion-suppression vacuum electromagnetic starter of claim 1, it is characterized in that: it is corresponding with the square spigot end arc connected in star face of conducting rod (5) that pressing plate (1) is made as arc-shaped concave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202450414U CN201698915U (en) | 2010-07-02 | 2010-07-02 | Explosion-proof vacuum electromagnetic starter for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202450414U CN201698915U (en) | 2010-07-02 | 2010-07-02 | Explosion-proof vacuum electromagnetic starter for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201698915U true CN201698915U (en) | 2011-01-05 |
Family
ID=43400161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202450414U Expired - Fee Related CN201698915U (en) | 2010-07-02 | 2010-07-02 | Explosion-proof vacuum electromagnetic starter for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201698915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751111A (en) * | 2012-06-28 | 2012-10-24 | 遵义长征电器防爆设备有限责任公司 | Binding post for explosion-proof switch |
| CN109114221A (en) * | 2018-08-28 | 2019-01-01 | 西安近代化学研究所 | A kind of pressure vessel conducting device |
-
2010
- 2010-07-02 CN CN2010202450414U patent/CN201698915U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751111A (en) * | 2012-06-28 | 2012-10-24 | 遵义长征电器防爆设备有限责任公司 | Binding post for explosion-proof switch |
| CN109114221A (en) * | 2018-08-28 | 2019-01-01 | 西安近代化学研究所 | A kind of pressure vessel conducting device |
| CN109114221B (en) * | 2018-08-28 | 2020-10-27 | 西安近代化学研究所 | Pressure vessel switches on device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20110702 |