CN209764927U - Novel tail terminal of electric energy meter - Google Patents
Novel tail terminal of electric energy meter Download PDFInfo
- Publication number
- CN209764927U CN209764927U CN201920161936.0U CN201920161936U CN209764927U CN 209764927 U CN209764927 U CN 209764927U CN 201920161936 U CN201920161936 U CN 201920161936U CN 209764927 U CN209764927 U CN 209764927U
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- half cylinder
- blind hole
- electric energy
- energy meter
- left end
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Abstract
The utility model discloses a novel electric energy meter tail terminal, including rectangular shape main part, the main part left end is provided with rather than coaxial table tail spliced pole, be provided with left end open-ended first blind hole on the table tail spliced pole, be provided with right-hand member open-ended second blind hole in the main part, be provided with the lock sleeve that can tighten power wire tip rather than coaxial in the second blind hole, the outer wall of lock sleeve hugs closely in second blind hole inner wall, the terminal is made by copper, the lock sleeve inner wall coating has aluminium layer or tin layer, the main part is provided with the screw hole that is linked together with the second blind hole radially, be provided with locking screw in the screw hole, the electric energy meter tail inserts in the first blind hole, power wire tip stretches into in the lock sleeve and is fixed by locking screw; the contact area of power wire and terminal can be increased to this terminal, can avoid contact resistance increase and burn out the electric energy meter, and the terminal can be dismantled with the table tail and be connected, need not to change whole ammeter when the terminal burns out, resources are saved.
Description
Technical Field
The utility model relates to a direct access type list, the installation of three-phase electric energy meter, in particular to novel electric energy meter tail terminal.
Background
at present, single-phase and three-phase direct access type electric energy meters are generally applied to metering of residential electricity or power electricity of residents, and the usage amount of the electric energy meters in a power supply system accounts for more than 90%. However, the problems of the installation process and the outdoor environment, particularly the design of the electric meter terminal, cause the burning of about 10% of the electric energy meters every year, and the reasons and the existing problems are as follows:
1. The installation is not standardized and leads to the fact the sinle silk intake, or the epidermis does not design the elbow that drips, causes the oxidation of table tail to burn out.
2. The copper-aluminum transition of the incoming line or the outgoing line of the untreated electric meter causes the oxidation and the heating of the wiring position to burn out the tail of the electric meter.
3. The use of a bolt to compress the wire, whether stranded or single conductor, presents the problem of a reduced contact surface between the wire and the meter terminal.
4. Because the contact resistance increase is caused by the reduction of the contact surface of the wire and the terminal, the copper and aluminum combination is added, the wire is affected with damp, the contact resistance is further oxidized, the electric meter terminal is extremely easy to burn out due to heating at the terminal, the electric meter terminal is always completely connected with the electric meter for the sealing requirement, the whole replacement of the electric meter is caused, and the resources are wasted.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a novel electric energy meter table tail terminal can increase the area of contact of power wire and terminal, can avoid contact resistance increase and burn out the electric energy meter, and the terminal can be dismantled with the table tail and be connected, need not to change whole ammeter, resources are saved when the terminal burns out.
The utility model aims at realizing through the following technical scheme:
The utility model provides a novel electric energy meter table tail terminal, includes rectangular shape main part, the main part left end is provided with rather than coaxial table tail spliced pole, be provided with left end open-ended first blind hole on the table tail spliced pole, be provided with right-hand member open-ended second blind hole in the main part, be provided with the lock sleeve rather than coaxial ability cover tight power wire tip in the second blind hole, the outer wall of lock sleeve is hugged closely in second blind hole inner wall, the terminal is made by copper, the coating of lock sleeve inner wall has aluminium layer or tin layer, the main part radially is provided with the screw hole that is linked together with the second blind hole, threaded hole is provided with locking screw, and electric energy meter table tail inserts in the first blind hole, and power wire tip stretches into in the lock sleeve and is fixed by locking screw.
Further, the locking sleeve comprises a first half cylinder, a second half cylinder, a third half cylinder, a fourth half cylinder, a fifth half cylinder and a sixth half cylinder, wherein the first half cylinder and the second half cylinder are oppositely arranged from top to bottom, the third half cylinder and the fourth half cylinder are oppositely arranged from top to bottom, the third half cylinder is positioned on the right side of the first half cylinder, the fourth half cylinder is positioned on the right side of the second half cylinder, the fifth half cylinder and the sixth half cylinder are oppositely arranged from front to back, the lower side of the left end of the fifth half cylinder is connected with the front sides of the right ends of the second half cylinder, the upper side of the right end of the fifth half cylinder is connected with the front side of the left end of the third half cylinder, the upper side of the left end of the sixth half cylinder is connected with the rear side of the right end of the first half cylinder, the lower side of the right end of the.
further, the lock sleeve includes the screw rod section, be provided with a plurality of jack catchs along its circumference even interval on the left end face of screw rod section, the jack catch is rectangular shape and sets up along screw rod section left end extending direction, the jack catch is trapezoidal in longitudinal section, and its inner wall side towards the second blind hole is the arc arch, and the inner wall side that deviates from the second blind hole is the arc recess, the jack catch right-hand member deviates from the inner wall side of second blind hole and fixes on the screw rod section, be provided with the through-hole along its length direction in the screw rod section, it is provided with the bar groove to correspond locking screw department in the screw rod section, the bar groove sets up along screw rod section length direction, the cover is equipped with the nut on the screw rod section right-hand member, the nut is located the main part right side, the arc arch of jack catch is hugged closely in second blind hole inner.
Still further, the number of the jaws is six.
Still further, the locking screw is two and sets up along main part length direction.
The utility model has the advantages that:
The utility model discloses a novel electric energy meter table tail terminal tightly overlaps on power wire tip through setting up the lock sleeve, and the lock sleeve hugs closely in second blind hole inner wall, and the area of contact of multiplicable power wire and terminal, in addition, because the inner wall coating of lock sleeve has aluminium lamination or tin layer, can avoid the contact resistance increase and burn out the electric energy meter, the terminal can be dismantled with the table tail and be connected, need not to change whole ammeter when the terminal burns out, resources are saved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
Fig. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is a schematic view of a first half-cylinder, a sixth half-cylinder and a four-phase connection structure of the half-cylinder in FIG. 1;
FIG. 4 is a schematic diagram of a semi-cylindrical two, semi-cylindrical five and semi-cylindrical three-phase connection structure in FIG. 1;
FIG. 5 is a perspective view of a second embodiment of the present invention;
Fig. 6 is a schematic view of the locking collar of fig. 5.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1-6, a novel electric energy meter tail terminal, including rectangular shape main part 1, 1 left end of main part is provided with rather than coaxial table tail spliced pole 2, be provided with left end open-ended first blind hole on the table tail spliced pole 2, be provided with right-hand member open-ended second blind hole on the main part 1, be provided with in the second blind hole rather than coaxial lock sleeve 3 that can tighten power wire tip, the outer wall of lock sleeve hugs closely in second blind hole inner wall, the terminal is made by copper, 3 inner wall coating of lock sleeve have aluminium lamination or tin layer, main part 1 radially is provided with the screw hole that is linked together with the second blind hole, threaded hole is provided with locking screw 4, the electric energy meter tail inserts in the first blind hole, power wire tip stretches into in the lock sleeve 3 and is fixed by locking screw.
the locking sleeve 3 comprises a first half cylinder 31, a second half cylinder 32, a third half cylinder 33, a fourth half cylinder 34, a fifth half cylinder 35 and a sixth half cylinder 36, wherein the first half cylinder 31 and the second half cylinder 32 are oppositely arranged up and down, the third half cylinder 33 and the fourth half cylinder 34 are oppositely arranged up and down, the third half cylinder 33 is positioned on the right side of the first half cylinder 31, the fourth half cylinder 34 is positioned on the right side of the second half cylinder 32, the fifth half cylinder 35 and the sixth half cylinder 36 are oppositely arranged front and back, the lower side of the left end of the fifth half cylinder 35 is connected with the front side of the right end of the second half cylinder 32, the upper side of the right end of the fifth half cylinder 35 is connected with the front side of the left end of the third half cylinder 33, the upper side of the left end of the sixth half cylinder 36 is connected with the rear side of the right end of the first half cylinder 31, the lower side of the right end of the sixth half cylinder 36 is connected with the rear side of the left end of the fourth half cylinder 34, the locking sleeve is deformed in the second blind hole and tightly sleeved with the power supply lead, and when the locking sleeve extends into the leftmost end of the second blind hole, the locking screw is screwed.
The locking sleeve 3 comprises a screw section 40, a plurality of clamping jaws 41 are uniformly arranged on the left end surface of the screw section 40 at intervals along the circumferential direction, the clamping jaws 41 are strip-shaped and are arranged along the extending direction of the left end of the screw section 40, the clamping jaws 41 are trapezoidal in the longitudinal section, the inner wall sides of the clamping jaws 41 facing the second blind hole are arc-shaped protrusions, the inner wall sides of the clamping jaws 41 facing away from the second blind hole are arc-shaped grooves, the inner wall sides of the right end of the clamping jaws 41 facing away from the second blind hole are fixed on the screw section, through holes are formed in the screw section 40 along the length direction of the screw section, strip-shaped grooves 42 are formed in the screw section 40 corresponding to the locking screws, the strip-shaped grooves 42 are arranged along the length direction of the screw section 40, nuts 5 are sleeved on the right end of the screw section 40, the nuts 5 are positioned on the right side of the main body 1, the arc-shaped protrusions of the clamping jaws 41 are tightly attached to, when the second blind hole is pushed to the leftmost end, the power supply lead is inserted into the through hole until the power supply lead extends into the space between the claws 41, then the nut 5 is pulled to separate the claws 41 from the cap body, and at the moment, the claws 41 tightly sleeve the power supply lead, preferably, six claws 41.
The locking screws are two and are arranged along the length direction of the main body.
The terminal is made of copper, and the inner wall of the locking sleeve is made of aluminum plating or tin to meet the wiring requirement of the lower subscriber line, so that the problem of copper-aluminum transition is solved, and oxidation is avoided; simultaneously interior lock sleeve drives toward the outer motion through the nut and realizes tightening up in order to adapt to different line footpath area of contact, satisfies increase area of contact, reduces the inside contact resistance's of wire purpose, adopts locking screw to compress tightly the integral type in addition, satisfies the compressing occlusion dynamics.
The locking sleeve can be used for wrapping the power supply lead and increasing the contact area. In addition, the locking sleeve is adopted, so that the effect of an expansion bolt is achieved by locking the power supply lead after the power supply lead is inserted and the nut is taken out, and on one hand, the end part of the power supply lead is tightly wrapped, so that the lead head is prevented from loosening; this terminal right-hand member nut of two aspects plays certain sealed and waterproof effect. The clamp sleeve can avoid the compression during the calibration of the electric energy meter, the middle section is provided with holes, so that the electric energy meter can be calibrated just like the current electric meter by a clamp bolt without screwing a nut, the influence is avoided, and the clamp sleeve can be repeatedly used.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (5)
1. the utility model provides a novel electric energy meter tail terminal which characterized in that: including rectangular shape main part, the main part left end is provided with rather than coaxial table tail spliced pole, be provided with the first blind hole of left end open-ended on the table tail spliced pole, be provided with right-hand member open-ended second blind hole in the main part, be provided with the lock sleeve rather than coaxial ability cover tight power wire tip in the second blind hole, the outer wall of lock sleeve hugs closely in second blind hole inner wall, the terminal is made by copper, the coating of lock sleeve inner wall has aluminium lamination or tin layer, the main part radially is provided with the screw hole that is linked together with the second blind hole, threaded hole is provided with locking screw, and the electric energy meter tail inserts in the first blind hole, and power wire tip stretches into in the lock sleeve and is fixed by locking screw.
2. The novel electric energy meter tail terminal according to claim 1, characterized in that: the locking sleeve comprises a first half cylinder, a second half cylinder, a third half cylinder, a fourth half cylinder, a fifth half cylinder and a sixth half cylinder, wherein the first half cylinder and the second half cylinder are oppositely arranged from top to bottom, the third half cylinder and the fourth half cylinder are oppositely arranged from top to bottom, the third half cylinder is positioned on the right side of the first half cylinder, the fourth half cylinder is positioned on the right side of the second half cylinder, the fifth half cylinder and the sixth half cylinder are oppositely arranged from front to back, the lower side of the left end of the fifth half cylinder is connected with the front sides of the right ends of the second half cylinder, the upper side of the right end of the fifth half cylinder is connected with the front side of the left end of the third half cylinder, the upper side of the left end of the sixth half cylinder is connected with the rear side of the right end of the first half cylinder, the lower side of the right end of.
3. The novel electric energy meter tail terminal according to claim 1, characterized in that: the locking sleeve comprises a screw section, a plurality of clamping jaws are arranged on the left end face of the screw section at uniform intervals along the circumferential direction of the screw section, the clamping jaws are long-strip-shaped and are arranged along the extending direction of the left end of the screw section, the clamping jaws are trapezoidal in the longitudinal section and are arc-shaped and convex towards the inner wall side of the second blind hole, the inner wall side deviating from the second blind hole is an arc-shaped groove, the right end of each clamping jaw deviates from the inner wall side of the second blind hole and is fixed on the screw section, a through hole is formed in the screw section along the length direction of the screw section, a strip-shaped groove is formed in the screw section corresponding to the locking screw, and is arranged along the length direction of the screw section, a nut is sleeved on the right end of the screw section and is located on the right side of the main body, the arc-.
4. The novel electric energy meter tail terminal according to claim 3, characterized in that: the jack catch is six.
5. The novel electric energy meter tail terminal according to any one of claims 1 to 4, characterized in that: the locking screws are two and are arranged along the length direction of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920161936.0U CN209764927U (en) | 2019-01-29 | 2019-01-29 | Novel tail terminal of electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920161936.0U CN209764927U (en) | 2019-01-29 | 2019-01-29 | Novel tail terminal of electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209764927U true CN209764927U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920161936.0U Active CN209764927U (en) | 2019-01-29 | 2019-01-29 | Novel tail terminal of electric energy meter |
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| Country | Link |
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| CN (1) | CN209764927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752577A (en) * | 2019-01-29 | 2019-05-14 | 贵州电网有限责任公司 | A kind of electric energy meter table tail end |
-
2019
- 2019-01-29 CN CN201920161936.0U patent/CN209764927U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752577A (en) * | 2019-01-29 | 2019-05-14 | 贵州电网有限责任公司 | A kind of electric energy meter table tail end |
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