CN205193137U - Clip -on ammeter - Google Patents
Clip -on ammeter Download PDFInfo
- Publication number
- CN205193137U CN205193137U CN201520920102.5U CN201520920102U CN205193137U CN 205193137 U CN205193137 U CN 205193137U CN 201520920102 U CN201520920102 U CN 201520920102U CN 205193137 U CN205193137 U CN 205193137U
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- dwang
- chain
- housing
- sprocket wheel
- jaw
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Abstract
The utility model discloses a clip -on ammeter is provided with the dwang at casing upper end opposite side, and dwang one end is stretched into in the casing and is rotated with the casing and is connected, and the dwang other end is fixed with a sprocket, and the chain takes turns to and is provided with the chain that forms the transmission with it and connect, and the chain is the annular structure, greatest length phase -match when the length of chain and telescopic link stretch out, and wherein the interlude of dwang is the screw rod, the lower extreme of keeping silent in a left side is provided with the screw that can form threaded connection with the screw rod, and forms sliding connection between bottom and the casing, when the sprocket in chain effect down during corotation, the dwang rotates and makes a left side keep silent along the casing toward outer slip, the electric wire that awaits measuring is located between keeping silent in a left side and keeps silent in the right side. On the external screw thread of dwang is placed in to the fixed pot head kept silent in a left side, and be provided with in the stiff end of keeping silent of a left side with external screw thread assorted internal thread. The beneficial effect of the utility model: the problem of remote switching iron core is solved, the switching iron core has been made things convenient for.
Description
Technical field
The utility model relates to a kind of clamp on amperemeter.
Background technology
Clamp on amperemeter is combined by current transformer and reometer.The iron core of current transformer can open when clutching spanner; The wire that tested electric current passes through can cut off and just through the breach opened unshakable in one's determination, can close when decontroling spanner back core.
Chinese patent discloses the Telescopic clip-on ammeter that a kind of application number is 201010502989.8, comprises the current transformer of the jaw of opening and closing type, data display instrument, housing and punching.Also comprise expansion link; Described current transformer is that the coil of a pair main body semicircular in shape is formed, its entirety is placed in enclosure interior, and it is concentric with the circular arc place on housing, coil lower end is provided with trapezoid boss, described trapezoid boss is provided with the pin-and-hole with described housing hinge, a pair coil is staggered relatively, and the boss of two coils is connected by spring; Described jaw is a pair insulation shell triangular in shape, is fastened in described current transformer upper end respectively; Described expansion link is more than two joints, and by screwing i.e. fixable insulation tube between adjacent two joints, expansion link upper end is fixed in the lower end of housing, the most minor details insulation tube of expansion link is fixed with data display instrument, and described data display instrument and current transformer are connected by the spring retractable connecting line in expansion link inside.Although this structure is by the effect of expansion link, when low-voltage platform area branch current surveyed by card, tester need not the padded height just jaw can being delivered to electric wire place to be detected, but the expansion link of this device can not solve jaw and arrive that need after height can not the problem of opening and closing jaw at a distance, due to must jaw be closed in detection current course, just can measure, this just still needs padded just can the realization of tester to detect.
Utility model content
The purpose of this utility model is to provide a kind of clamp on amperemeter, is solved the problem of remote opening and closing iron core by the mounting structure arranging left jaw and right jaw.
The purpose of this utility model realizes by the following technical solutions:
A kind of clamp on amperemeter, comprises housing, is provided with reometer and mutual inductor in housing, and mutual inductor includes in the pincerlike iron core arranged, and iron core comprises left jaw and right jaw, and the lower end of housing is provided with expansion link.Right jaw is fixed on side, housing upper end; In housing upper end, opposite side is provided with dwang, dwang one end to put in housing and is connected with housing into rotation, the dwang other end is fixed with a sprocket wheel, sprocket wheel is provided with the chain being formed with it and be in transmission connection, chain is ring texture, the maximum length when length of chain and expansion link stretch out matches, and wherein the interlude of dwang is screw rod; The lower end of left jaw is provided with and can forms with screw rod the screw be threaded, and between bottom and housing, formation is slidably connected, and the upper end of left jaw flushes with right jaw upper end; When sprocket wheel rotates forward under chain effect, dwang rotates and left jaw is slided outward along housing, and left jaw is separated away from right both jaws, otherwise left jaw closes near right both jaws, and electric wire to be measured is between left jaw and right jaw; Dwang is used for the left jaw of opening and closing and right jaw, and one end is provided with external thread to dwang, and the dwang other end is provided with sprocket wheel, and on sprocket wheel, suspention has the chain for pulling chain wheel; The fixed end cap of left jaw is placed on the external thread of dwang, and is provided with the internal thread matched with external thread in the stiff end of left jaw.The length of chain and the extreme length of expansion link adapt, and therefore when expansion link is elongated to extreme length, still can move chain to.Pull chain that sprocket wheel is rotated forward, dwang rotates forward along with sprocket wheel, and left jaw moves to deviating from right jaw direction along with the rotating forward of dwang, thus opens iron core, so that be placed in iron core by electric wire to be measured; Inserted after in iron core by electric wire to be measured, pull chain that sprocket wheel is reversed, dwang reverses along with sprocket wheel, and left jaw just moves right jaw direction along with the counter steer of dwang, thus iron core-closed, to detect electric current.
Preferably, chain comprises several inner links, and inner link comprises two pieces of parallel internal segment bodies, is connected with two linings be parallel to each other between two pieces of internal segment bodies, and each lining is all equipped with outward for the roller with movable sprocket, and each lining is hollow structure; Connected by outer link between every two inner links, outer link comprises the first acromere body and the second acromere body, and the first acromere body and the second acromere body are separately positioned on outside two adjacent inner links, and between the first acromere body, the second acromere body and lining, cross-under has bolt.Carried out the number of dismounting outer link and inner link by the bolt of dismounting outer link, thus realize the shortening of chain or elongated, to meet the demand of user to different length.
Preferably, be wrapped with hub at sprocket wheel, pass from hub after chain is connected with sprocket wheel, hub is made up of fixed part and movable part, fixed part is fixedly connected with housing, and fixed part is positioned at the below of sprocket wheel, and movable part and fixed part removably connect.By arranging hub protection chain and sprocket wheel, also achieving and opening hub to the inspection of chain or dismounting.
Preferably, the limited block skidded off from sprocket wheel side for limiting chain is provided with in movable part.Prevent from pulling coming off of chain in sprocket wheel process.
Preferably, fixed part is provided with pin upwards, pin is provided with projection, movable part is provided with downward socket, the size of socket size and pin matches, and socket inwall is provided with the groove for being connected with protruding buckle.Achieve removably connecting of fixed part and movable part.
Owing to have employed technique scheme, the utility model has the following advantages:
Solved the problem of remote opening and closing iron core by the mounting structure arranging left jaw and right jaw, thus facilitate opening and closing iron core.
Accompanying drawing explanation
Fig. 1 is the left jaw of the utility model clamp on amperemeter and right jaw front view when closing;
Fig. 2 is the left jaw of the utility model clamp on amperemeter and right jaw front view when opening;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the A-A cut-open view of Fig. 1;
Fig. 5 is the structural representation of the chain of the utility model clamp on amperemeter.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect clearly and be easy to understand, below in conjunction with the drawings and specific embodiments, the utility model being further elaborated:
As shown in Figures 1 to 4, the utility model provides a kind of clamp on amperemeter 2, comprises housing 1, reometer 2 and mutual inductor is provided with in housing 1, mutual inductor includes in the pincerlike iron core arranged, and iron core comprises left jaw 3 and right jaw 4, and the lower end of housing 1 is provided with expansion link 5.
Right jaw 3 is fixed on side, housing 1 upper end;
In housing 1 upper end, opposite side is provided with dwang 9, dwang 9 one end to put in housing 1 and is rotationally connected with housing 1, dwang 9 other end is fixed with a sprocket wheel 6, sprocket wheel 6 is provided with the chain 7 being formed with it and be in transmission connection, chain 7 is ring texture, the maximum length when length of chain 7 and expansion link stretch out matches, and wherein the interlude of dwang 9 is screw rod;
The lower end of left jaw 3 is provided with and can forms with screw rod the screw be threaded, and is formed between bottom and housing 1 and be slidably connected, and the upper end of left jaw 3 flushes with right jaw 4 upper end; When sprocket wheel 6 rotates forward under chain 7 acts on, dwang 9 rotates and left jaw 3 is slided outward along housing 1, and left jaw 3 is separated away from right both jaws 4, otherwise left jaw 3 closes near right both jaws 4, and electric wire to be measured is between left jaw 3 and right jaw 4;
Dwang is used for the left jaw of opening and closing 3 and right jaw 4, and one end is provided with external thread to dwang 9, and dwang 9 other end is provided with sprocket wheel 6, and on sprocket wheel 6, suspention has the chain 6 for pulling chain wheel;
The fixed end cap of left jaw 3 is placed on the external thread of dwang 9, and is provided with the internal thread matched with external thread in the stiff end of left jaw 3.
As shown in Figure 5, chain 7 comprises several inner links 71, and inner link 71 comprises between two pieces of parallel internal segment body 73, two pieces of internal segment bodies 73 and is connected with two linings be parallel to each other, each lining is all equipped with for the roller 74 with movable sprocket 6 outward, and each lining is hollow structure; Connected by outer link 72 between every two inner links 71, outer link 72 comprises the first acromere body 75 and the second acromere body 76, first acromere body 75 and the second acromere body 76 are separately positioned on outside two adjacent inner links 71, and between the first acromere body 75, second acromere body 76 and lining, cross-under has bolt 77.
Shown in Fig. 5, hub 8 is wrapped with at sprocket wheel 6, hub 8 is connected with housing 1 by contiguous block, contiguous block plays a supportive role to hub 8, pass from hub 8 after chain 7 is connected with sprocket wheel 6, hub 8 is made up of fixed part 81 and movable part 82, and fixed part 81 is fixedly connected with housing 1, and fixed part 81 is positioned at the below of sprocket wheel 6, movable part 82 and fixed part 81 removably connect.The limited block 83 skidded off from sprocket wheel 6 side for limiting chain 7 is provided with in movable part 82.Fixed part 81 is provided with pin upwards, pin is provided with projection, movable part 82 is provided with downward socket, the size of socket size and pin matches, and socket inwall is provided with the groove for being connected with protruding buckle.
Principle of work of the present utility model: the length of chain 7 and the extreme length of expansion link 5 adapt, and therefore when expansion link 5 is elongated to extreme length, still can move chain 7 to.Pull chain 7 that sprocket wheel 6 is rotated forward, dwang rotates forward along with sprocket wheel 6, and left jaw 3 moves to deviating from right jaw 4 direction along with the rotating forward of dwang, thus opens iron core, so that be placed in iron core by electric wire to be measured; Inserted after in iron core by electric wire to be measured, pull chain 7 that sprocket wheel 6 is reversed, dwang reverses along with sprocket wheel 6, and left jaw 3 just moves right jaw 4 direction along with the counter steer of dwang, thus iron core-closed, to detect electric current.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in instructions and embodiment utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (5)
1. a clamp on amperemeter, comprises housing, is provided with reometer and mutual inductor in housing, and mutual inductor includes in the pincerlike iron core arranged, and iron core comprises left jaw and right jaw, and the lower end of housing is provided with expansion link, it is characterized in that,
Right jaw is fixed on side, housing upper end;
In housing upper end, opposite side is provided with dwang, dwang one end to put in housing and is connected with housing into rotation, the dwang other end is fixed with a sprocket wheel, sprocket wheel is provided with the chain being formed with it and be in transmission connection, chain is ring texture, the maximum length when length of chain and expansion link stretch out matches, and wherein the interlude of dwang is screw rod;
The lower end of left jaw is provided with and can forms with screw rod the screw be threaded, and between bottom and housing, formation is slidably connected, and the upper end of left jaw flushes with right jaw upper end; When sprocket wheel rotates forward under chain effect, dwang rotates and left jaw is slided outward along housing, and left jaw is separated away from right both jaws, otherwise left jaw closes near right both jaws, and electric wire to be measured is between left jaw and right jaw;
Dwang is used for the left jaw of opening and closing and right jaw, and one end is provided with external thread to dwang, and the dwang other end is provided with sprocket wheel, and on sprocket wheel, suspention has the chain for pulling chain wheel;
The fixed end cap of left jaw is placed on the external thread of dwang, and is provided with the internal thread matched with external thread in the stiff end of left jaw.
2. clamp on amperemeter according to claim 1, is characterized in that, chain comprises several inner links,
Inner link comprises two pieces of parallel internal segment bodies, is connected with two linings be parallel to each other between two pieces of internal segment bodies, and each lining is all equipped with outward for the roller with movable sprocket, and each lining is hollow structure;
Connected by outer link between every two inner links, outer link comprises the first acromere body and the second acromere body, and the first acromere body and the second acromere body are separately positioned on outside two adjacent inner links, and between the first acromere body, the second acromere body and lining, cross-under has bolt.
3. clamp on amperemeter according to claim 1, it is characterized in that, hub is wrapped with at sprocket wheel, pass from hub after chain is connected with sprocket wheel, hub is made up of fixed part and movable part, fixed part is fixedly connected with housing, and fixed part is positioned at the below of sprocket wheel, and movable part and fixed part removably connect.
4. clamp on amperemeter according to claim 3, is characterized in that, is provided with the limited block skidded off from sprocket wheel side for limiting chain in movable part.
5. clamp on amperemeter according to claim 4, it is characterized in that, fixed part is provided with pin upwards, pin is provided with projection, movable part is provided with downward socket, the size of socket size and pin matches, and socket inwall is provided with the groove for being connected with protruding buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920102.5U CN205193137U (en) | 2015-11-18 | 2015-11-18 | Clip -on ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920102.5U CN205193137U (en) | 2015-11-18 | 2015-11-18 | Clip -on ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205193137U true CN205193137U (en) | 2016-04-27 |
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ID=55786116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520920102.5U Active CN205193137U (en) | 2015-11-18 | 2015-11-18 | Clip -on ammeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205193137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467191A (en) * | 2015-11-18 | 2016-04-06 | 重庆新世杰电气股份有限公司 | Clip-on ammeter |
| CN115032440A (en) * | 2022-08-10 | 2022-09-09 | 国网山东省电力公司枣庄供电公司 | Handheld anti-electricity-stealing clamp-on ammeter for inspection |
-
2015
- 2015-11-18 CN CN201520920102.5U patent/CN205193137U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467191A (en) * | 2015-11-18 | 2016-04-06 | 重庆新世杰电气股份有限公司 | Clip-on ammeter |
| CN115032440A (en) * | 2022-08-10 | 2022-09-09 | 国网山东省电力公司枣庄供电公司 | Handheld anti-electricity-stealing clamp-on ammeter for inspection |
| CN115032440B (en) * | 2022-08-10 | 2022-11-08 | 国网山东省电力公司枣庄供电公司 | Handheld anti-electricity-stealing clamp-on ammeter for inspection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |