CN202474265U - Disconnecting card suitable for round bar downlead - Google Patents
Disconnecting card suitable for round bar downlead Download PDFInfo
- Publication number
- CN202474265U CN202474265U CN2012200496643U CN201220049664U CN202474265U CN 202474265 U CN202474265 U CN 202474265U CN 2012200496643 U CN2012200496643 U CN 2012200496643U CN 201220049664 U CN201220049664 U CN 201220049664U CN 202474265 U CN202474265 U CN 202474265U
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- special
- downlead
- disconnecting
- locking
- card
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Abstract
The utility model discloses a disconnecting card suitable for a round bar downlead. The disconnecting card comprises a central casing pipe, wherein two locking cones are fixedly connected with the inner pipe walls of two ends of the central casing pipe respectively, and two special-shaped nuts are connected with two ends of the outer wall of the central casing pipe through screw threads. The special-shaped nuts are sheathed outside the locking cones, and waterproof sealing washers are buckled onto the inner walls of the front ends of the special-shaped nuts. The outer walls of the locking cones are matched with the inner walls of the special-shaped nuts. Two ends of each locking cones are provided with shrinkable elastic conical grippers, and the inner wall of each special-shaped nut is provided with a fixed conical surface for regulating the elastic conical grippers. The central casing pipe, the locking cones and the special-shaped nuts are made of copper alloy, and the two waterproof sealing washers are made of flame retardant materials. The disconnecting card is convenient to install, and the disconnecting card can be installed by only sawing off the current lightning protection downlead, welding is not needed, and the disconnecting card is easily opened. Copper alloy materials are machined to be manufactured into the disconnecting card, so that the disconnecting card can resist corrosion and has good electrical connection. Through the tight connection of the special-shaped nuts with the screw threads at the two ends of the central casing pipe, the lightning protection downlead can be reliably connected. The disconnecting card can be used for conveniently and quickly detecting the actual value of the grounding resistance of each point, and lightning hazards are reduced.
Description
Technical field:
The utility model relates to the lightning protection downlead field, relates in particular to the breaking of contact that is applicable to round muscle downlead.
Background technology:
Point out in the national standard " Code for design of lightning protection of buildings " that the building lightning protection downlead should installed breaking of contact between the 0.3～1.8m of ground; Meteorological department of country regulation detects once lightning protection facility is annual, and each test point must break off the back test.Existing breaking of contact is that downlead is broken off the back Welding flat steel basically, then two band steels is holed respectively, uses bolted after superimposed.Because the breaking of contact overwhelming majority is open-air setting; Expose to the sun and rain; To break off very difficulty of breaking of contact after the screw corrosion; Lightning protection downlead and earth mat detect to lightning protection and to bring very big inconvenience, consume lot of manpower and material resources, in case just possibly cause the generation of lightning strike accident owing to reason loose contact such as corrosion or disconnection.Therefore imagination provides a kind of equipment to solve this problem.
The utility model content:
The purpose of the utility model just provides a kind of breaking of contact that is applicable to round muscle lightning protection downlead, and it can overcome the above-mentioned shortcoming of existing breaking of contact.
The technical scheme that the utility model adopts is:
Be applicable to the breaking of contact of round muscle downlead; Comprise central cannulation: have a central cannulation; Two locking cones are fixedly connected with the inside pipe wall at central cannulation two ends respectively; Two abnormity nuts are through being threaded in the two ends of central cannulation outer wall, and abnormity nut to be sleeved on locking cone external, be installed with the waterproof sealing packing ring on the abnormity nut front inner wall.
The external wall of described locking cone cooperates with the abnormity nut inwall, and locking cone two ends have contractile elastic cone handgrip, and the abnormity nut inwall is provided with the fixed axoid of an adjusting elastic cone handgrip.
Said central cannulation, locking cone, abnormity nut are all processed with copper alloy, and two waterproof sealing packing rings are processed with fire proofing.
Circle muscle lightning protection downlead passes the abnormity nut insertion and is installed on the locking cone.
Compared with prior art, the beneficial effect of the utility model is:
The utility model is through a central cannulation; The interior formation closely of pipe that circle one end of two locking cones is inserted in the central cannulation two ends respectively connects; Two abnormity nuts are screwed in respectively on the external screw thread at two ends of central cannulation, the degree of regulating the fastening round muscle downlead of taper handgrip of locking cone through the degree of depth that is screwed into screw thread; It is easy for installation, will have lightning protection downlead now and cut and can install, and need not weld, and is prone to open.Process through machine work with Cu alloy material, can anticorrosion, be electrically connected, the tight linking through abnormity nut and central cannulation two ends screw thread reliably connects lightning protection downlead.Use this breaking of contact can make things convenient for the actual value of fast detecting each point earth resistance, reduce the thunder and lightning disaster.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model, and wherein the left side is for inserting the state of circle muscle downlead, and the right side is the state after locking;
Accompanying drawing 2 is a central cannulation sketch map end view;
Accompanying drawing 3 is locking cone sketch map end view;
Accompanying drawing 4 is locking cone sketch map front view;
Accompanying drawing 5 is the end view of abnormity nut;
Accompanying drawing 6 is the front view of abnormity nut.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is done further explain through embodiment:
Be applicable to the breaking of contact of round muscle downlead; Comprise central cannulation 1: have a central cannulation 1; Two locking cones 2 are fixedly connected with the inside pipe wall at central cannulation two ends respectively; Two abnormity nuts 3 are through being threaded in the two ends of central cannulation outer wall, and abnormity nut 3 is sleeved on outside the locking cone 2, are installed with waterproof sealing packing ring 4 on abnormity nut 3 front inner wall.Locking cone 2 outer walls cooperate with abnormity nut 3 inwalls; Locking cone 2 two ends have contractile elastic cone handgrip; Abnormity nut 3 inwalls are provided with the fixed axoid of an adjusting elastic cone handgrip; Central cannulation 1, locking cone 2, abnormity nut 3 are all processed with copper alloy, and two waterproof sealing packing ring 4 usefulness fire proofings are processed.Circle muscle lightning protection downlead 5 passes abnormity nut 3 insertions and is installed on the locking cone 2.
Central cannulation is a metal circular tube, and two ends are processed with external screw thread; The locking cone is also made with metal pipe material, and caliber is slightly less than central cannulation, and an end is processed into external diameter and maintains a stopping step with the interior of central cannulation through consistent, and an other end is processed into the elastic cone handgrip of an eight equal parts opening; Abnormity nut one end is a truncated cone-shaped, and the other end is a hex nut shape, and the convenient spanner that uses is fastening.Its inner truncated cone-shaped one end also has the waterproof sealing gasket groove; Near the middle part tapered slope is arranged; Be used to regulate the tensioning degree of the elastic cone handgrip of locking cone 2; Crucial part is that the angle after the angle of its tapered slope is locked with the taper handgrip fully is consistent, and is connected with good electrical between the lightning protection downlead with assurance taper handgrip.
The first two ends that pipe one end of two locking cones is inserted central cannulation respectively during assembling, formation closely cooperates.Inboard with abnormity nut taper microcephaly installs the fire-resistant waterproof seal washer earlier then, a more threaded end is screwed on the external screw thread at central cannulation two ends.Want the position of adjunction breaking of contact that it is broken off at lightning protection downlead, insert the lightning protection downlead that breaks off from the abnormity nut end at this breaking of contact two ends respectively then, with spanner two abnormity nuts of screwing, this breaking of contact promptly installs.
The utility model is processed with copper alloy, not only can be anticorrosion but also can guarantee electric reliable connection.Locking cone one end of the utility model is contractile elastic cone handgrip; There is a conical surface of regulating the elastic cone handgrip abnormity nut inside; Along with abnormity nut is inwardly tightened on central cannulation; Its inner fixed axoid compressing moving vane inwardly shrinks, and holds lightning protection downlead tightly and forms tight contact, has guaranteed being electrically connected of breaking of contact and lightning protection downlead
The foregoing description is merely the preferred implementation of the utility model, and in addition, the utility model can also have other implementations.Need to prove that under the prerequisite that does not break away from the utility model design, any conspicuous improvement and modification all should fall within the protection range of the utility model.
Claims (4)
1. be applicable to the breaking of contact of round muscle downlead; Comprise central cannulation; It is characterized in that: have a central cannulation, two locking cones are fixedly connected with the inside pipe wall at central cannulation two ends respectively, and two abnormity nuts are through being threaded in the two ends of central cannulation outer wall; And it is external that abnormity nut is sleeved on locking cone, is installed with the waterproof sealing packing ring on the abnormity nut front inner wall.
2. the breaking of contact that is applicable to round muscle downlead according to claim 1; It is characterized in that: the external wall of described locking cone cooperates with the abnormity nut inwall; Locking cone two ends have contractile elastic cone handgrip, and the abnormity nut inwall is provided with the fixed axoid of an adjusting elastic cone handgrip.
3. the breaking of contact that is applicable to round muscle downlead according to claim 1 is characterized in that: said central cannulation, locking cone, abnormity nut are all processed with copper alloy, and two waterproof sealing packing rings are processed with fire proofing.
4. the breaking of contact that is applicable to round muscle downlead according to claim 1 is characterized in that: circle muscle lightning protection downlead passes the abnormity nut insertion and is installed on the locking cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200496643U CN202474265U (en) | 2012-02-16 | 2012-02-16 | Disconnecting card suitable for round bar downlead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200496643U CN202474265U (en) | 2012-02-16 | 2012-02-16 | Disconnecting card suitable for round bar downlead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474265U true CN202474265U (en) | 2012-10-03 |
Family
ID=46922398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200496643U Expired - Fee Related CN202474265U (en) | 2012-02-16 | 2012-02-16 | Disconnecting card suitable for round bar downlead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466456A (en) * | 2014-12-26 | 2015-03-25 | 何苍贵 | Fastening type wire connecting method |
| CN109936125A (en) * | 2019-04-01 | 2019-06-25 | 广州市雷斯盾电气科技发展有限公司 | A kind of arc suppression coil device with disconnecting structure |
-
2012
- 2012-02-16 CN CN2012200496643U patent/CN202474265U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466456A (en) * | 2014-12-26 | 2015-03-25 | 何苍贵 | Fastening type wire connecting method |
| CN109936125A (en) * | 2019-04-01 | 2019-06-25 | 广州市雷斯盾电气科技发展有限公司 | A kind of arc suppression coil device with disconnecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20150216 |
|
| EXPY | Termination of patent right or utility model |