CN211148724U - Single-side test joint for 10kV cable test - Google Patents
Single-side test joint for 10kV cable test Download PDFInfo
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- CN211148724U CN211148724U CN201921744539.2U CN201921744539U CN211148724U CN 211148724 U CN211148724 U CN 211148724U CN 201921744539 U CN201921744539 U CN 201921744539U CN 211148724 U CN211148724 U CN 211148724U
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Abstract
The utility model relates to a power equipment technical field specifically discloses a 10kV cable test unilateral test connects, include: the inner wall of the threaded sleeve is provided with internal threads; a rotating shaft; the middle part of the connecting rod is positioned in the threaded sleeve and is in threaded connection with the threaded sleeve, the rotating shaft is fixedly arranged at the first end of the connecting rod, and the first end of the connecting rod is provided with a right-angled trapezoid through groove; the tongue piece rotates, the first end of rotating the tongue piece be equipped with the right trapezoid leads to the groove cooperation and inserts right trapezoid boss in the right trapezoid leads to the groove, rotate the tongue piece through the pivot with the connective bar 90 rotates to be connected. The utility model provides a 10kV cable test unilateral test connects can realize the reliable connection with the copper wiring ear of cable, does not cause the damage to sheath and copper wiring ear again, has safe and reliable's advantage.
Description
Technical Field
The utility model relates to a power equipment technical field especially relates to a 10kV cable test unilateral test connects.
Background
When the 10kV cable in the operation is tested at present, two modes for connecting a connection test instrument and the cable are provided: firstly, removing a cable head sheath to expose a cable core and connect the cable core with a test instrument; secondly, after the cable head is bent to be approximately horizontal, a person can fix the special bolt and the special nut on two sides of the cable head through the cable copper lug in the cable sheath by hand.
Both of the above two approaches have drawbacks: the first mode can cause irreversible damage to an old sheath when the outer sheath of the cable is detached, a new sheath needs to be replaced, and labor, materials and power failure time are doubled. The second mode is at the in-process that inserts the bolt, has the condition of scraping colored cable bushing and cable copper lug, causes local point discharge, probably leaves the trouble hidden danger, when fixing bolt and nut moreover, needs the swing cable head, operates in cable head both sides, increases the risk of jump wrong line. In the process of screwing the bolt, sweat, dust and other pollution can be left in the cable, the cleanness inside the cable head is damaged, and the insulation level is reduced. In addition, the copper lug of the cable needs corresponding bolts and nuts, and some of the less-used models can be omitted during testing.
Therefore, there is a need for a test connector that provides reliable connection to the copper lug of a cable without damaging the jacket and the copper lug.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a 10kV cable test unilateral test connects, can realize the reliable connection with the copper wiring ear of cable, does not cause the damage to sheath and copper wiring ear again, has safe and reliable's advantage.
For reaching above purpose, the utility model provides a 10kV cable test unilateral test connects, include:
the inner wall of the threaded sleeve is provided with internal threads;
a rotating shaft;
the middle part of the connecting rod is positioned in the threaded sleeve and is in threaded connection with the threaded sleeve, the rotating shaft is fixedly arranged at the first end of the connecting rod, and the first end of the connecting rod is provided with a right-angled trapezoid through groove;
the tongue piece rotates, the first end of rotating the tongue piece be equipped with the right trapezoid leads to the groove cooperation and inserts right trapezoid boss in the right trapezoid leads to the groove, rotate the tongue piece through the pivot with the connective bar 90 rotates to be connected.
Preferably, the cross-sectional view of the right-trapezoid through groove on a plane perpendicular to the axis of the rotating shaft is a right-trapezoid, the right-trapezoid comprises a right-angle side and a bevel side, and the rotating shaft is located between the right-angle side and the bevel side; the right-angle side is located the pivot is kept away from one side of screw thread sleeve pipe, the hypotenuse is located the pivot is close to one side of screw thread sleeve pipe.
Specifically, the arrangement of the right-angle edge and the bevel edge relative to the rotating shaft can effectively realize the limiting function that the rotating tongue piece and the connecting rod can only rotate 90 degrees.
Specifically, the working principle of the single-side test joint for the 10kV cable test is as follows:
① rotating the threaded sleeve in forward direction to extend the first end of the connecting rod;
② the connecting rod is rotated to make the rotating shaft in vertical state and the connecting rod and the rotating tongue piece are in a straight line, of course, it can be understood that the connecting rod can also be rotated to make the rotating shaft in horizontal state and the shorter bottom side of the right trapezoid is above, the rotating tongue piece can only keep in a straight line with the connecting rod under the limit of the right trapezoid through groove;
③ inserting the rotary tongue and the rotary shaft into the copper lug;
④ rotating the connecting rod to make the rotating shaft horizontal and the shorter bottom side of the right trapezoid below, the rotating tongue rotates downward around the horizontally arranged rotating shaft to be perpendicular to the connecting rod to form L type structure to clamp the copper lug;
⑤ rotating the threaded sleeve in reverse direction to make the threaded sleeve close to the rotary tongue piece, and finally the threaded sleeve and the rotary tongue piece are matched to clamp the copper lug;
⑥ when the copper lug needs to be loosened, the steps ① - ⑤ are reversed, and will not be described herein.
Preferably, the 10kV cable test unilateral test joint further comprises a double-color rubber sleeve, the double-color rubber sleeve is arranged at the second end of the connecting rod, and a first color and a second color are sprayed on the double-color rubber sleeve.
Preferably, the first color is green and the second color is red.
Preferably, when the axis of the rotating shaft is in a horizontal state, the first color faces upwards.
Preferably, when the axis of the rotating shaft is in a horizontal state, the second color faces upwards.
Specifically, the unknown state of the rotary tongue piece at the other section can be known by observing the color of the double-color rubber sleeve, and the method is simple and convenient.
Preferably, the mass from the first end of the rotor blade to the rotating shaft is smaller than the mass from the second end of the rotor blade to the rotating shaft.
It can be understood that when the mass from the first end of the rotating tongue piece to the rotating shaft is less than that from the second end of the rotating tongue piece to the rotating shaft, the rotating tongue piece is turned by 90 degrees to enable the longer bottom edge of the right trapezoid to be located above, and under the action of gravity, the rotating tongue piece automatically rotates 90 degrees around the rotating shaft arranged horizontally, so that the copper wiring lug is fastened.
Preferably, the length from the first end of the rotation tongue piece to the rotation shaft is smaller than the length from the second end of the rotation tongue piece to the rotation shaft.
Specifically, since the material of the entire rotation tongue piece is the same, as long as it is ensured that the length dimension from the first end of the rotation tongue piece to the rotation shaft is smaller than the length dimension from the second end of the rotation tongue piece to the rotation shaft, the mass from the first end of the rotation tongue piece to the rotation shaft can be smaller than the mass from the second end of the rotation tongue piece to the rotation shaft.
The beneficial effects of the utility model reside in that: the utility model provides a test of 10kV cable test unilateral connects, can realize the reliable connection with the copper connection ear of cable, does not cause the damage to sheath and copper connection ear again, has safe and reliable's advantage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a single-side test joint for 10kV cable test provided by an embodiment;
fig. 2 is a schematic view of the working state of the clamping copper lug of the single-side test joint for 10kV cable test provided by the embodiment.
In the figure:
1. a threaded bushing; 2. a rotating shaft; 3. a connecting rod; 4. rotating the tongue piece; 5. a double-color rubber sleeve; 6. copper lug.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 2, the present embodiment provides a single-side test joint for 10kV cable test, including:
the inner wall of the threaded sleeve 1 is provided with internal threads;
a rotating shaft 2;
the middle part of the connecting rod 3 is positioned in the threaded sleeve 1 and is in threaded connection with the threaded sleeve 1, the rotating shaft 2 is fixedly arranged at the first end of the connecting rod 3, and a right-angled trapezoidal through groove is formed in the first end of the connecting rod 3;
the tongue 4 rotates, the first end of tongue 4 rotate be equipped with the right trapezoid leads to the groove cooperation and inserts the right trapezoid boss that the right trapezoid led to the groove, the tongue 4 rotates through the pivot 2 with the connective bar 390 rotates to be connected.
Preferably, the cross-sectional view of the right-trapezoid through groove on a plane perpendicular to the axis of the rotating shaft 2 is a right-trapezoid, the right-trapezoid comprises a right-angle side and a bevel side, and the rotating shaft 2 is located between the right-angle side and the bevel side; the right-angle side is located the pivot 2 is kept away from one side of screw thread sleeve pipe 1, the hypotenuse is located the pivot 2 is close to one side of screw thread sleeve pipe 1.
Specifically, the arrangement of the right-angled edge and the oblique edge relative to the rotating shaft 2 can effectively realize the limiting function that the rotating tongue piece 4 and the connecting rod 3 can only rotate 90 degrees.
Specifically, the working principle of the single-side test joint for the 10kV cable test is as follows:
① rotating the threaded sleeve 1 in forward direction to make the first end of the connecting rod 3 extend outwards;
② the connecting rod 3 is rotated to make the rotating shaft 2 in vertical state, the connecting rod 3 and the rotating tongue piece 4 are in a straight line, of course, it can be understood that the connecting rod 3 can also be rotated to make the rotating shaft 2 in horizontal state and the bottom side with shorter length of the right trapezoid is positioned above, the rotating tongue piece 4 can only keep in a straight line with the connecting rod 3 under the limit of the right trapezoid through groove;
③ the rotating tongue piece 4 and the rotating shaft 2 are extended into the copper lug 6;
④ the connecting rod 3 is rotated to make the rotating shaft 2 in horizontal state and the shorter bottom side of the right trapezoid is located below, the rotating moving tongue piece rotates downwards around the rotating shaft 2 horizontally arranged to be vertical to the connecting rod 3 to form L type structure to block the copper wiring lug 6;
⑤ the threaded sleeve 1 is rotated reversely to make the threaded sleeve 1 close to the rotary tongue 4, and finally the threaded sleeve 1 and the rotary tongue 4 are matched to clamp the copper lug 6;
⑥ when the copper lug 6 needs to be loosened, the steps ① - ⑤ are reversed, and will not be described herein.
Preferably, the experimental unilateral test of 10kV cable connect still include double- colored gum cover 5, 5 covers of double-colored gum cover are established the second end of connective bar 3, the spraying has first colour and second colour on the double-colored gum cover 5.
Preferably, the first color is green and the second color is red.
Preferably, when the axis of the rotating shaft 2 is in a horizontal state, the first color faces upwards.
Preferably, when the axis of the rotating shaft 2 is in a horizontal state, the second color faces upwards.
Specifically, the unknown state of the rotary tongue piece 4 at the other section can be known by observing the color of the double-color rubber sleeve 5, and the method is simple and convenient.
Preferably, the mass of the first end of the rotor blade 4 to the rotor shaft 2 is smaller than the mass of the second end of the rotor blade 4 to the rotor shaft 2.
It can be understood that when the mass from the first end of the rotation tongue piece 4 to the rotation shaft 2 is less than that from the second end of the rotation tongue piece 4 to the rotation shaft 2, the rotation tongue piece 4 is turned by 90 ° to make the longer bottom side of the right trapezoid located above, and under the action of gravity, the rotation tongue piece 4 will automatically rotate 90 ° around the rotation shaft 2 horizontally arranged, so as to fasten the copper wiring lug 6.
Preferably, the length from the first end of the rotation tongue piece 4 to the rotation shaft 2 is smaller than the length from the second end of the rotation tongue piece 4 to the rotation shaft 2.
Specifically, since the material of the entire rotor blade 4 is the same, as long as the length from the first end of the rotor blade 4 to the rotating shaft 2 is less than the length from the second end of the rotor blade 4 to the rotating shaft 2, the mass from the first end of the rotor blade 4 to the rotating shaft 2 can be less than the mass from the second end of the rotor blade 4 to the rotating shaft 2.
Preferably, the 10kV cable test single-side test joint has an outer diameter B of 30mm and a hole diameter of 14.5mm according to the size of a 10kV cable YJV22-12 copper lug 6; the external diameter B of the YJV22-240 copper lug 6 is 50mm, and the diameter of the hole is 21 mm; it can be found that the dimension from the upper edge of the rotary tongue piece 4 to the center of the rotary hole is the hole diameter of the copper lug 6, the radius of the connecting rod 3 and the distance from the center of the connecting rod 3 to the edge of the copper lug 6. The size from the lower edge of the rotary tongue piece 4 to the rotary hole is the distance from the center of the connecting rod 3 to the edge of the copper lug 6, the diameter of the copper lug 6, the radius of the connecting rod 3 and the length of the upper edge of the rotary tongue piece 4. Because utilize gravity to make copper wiring ear 6 rotatory, fix connective bar 3, and 6 thickness of copper wiring ear receive the size restriction, should not differ in thickness, can only adjust in length, make the lower level of copper wiring ear 6 be good at the higher authority, reach lower level gravity and be greater than the higher authority, play the purpose of upset. Therefore, the dimensions of the pivoting tongue 4 in this embodiment are selected to be 14mm at the upper side and 19mm at the lower side, and can be commonly used in the cable tests of YJV22-120 to YJV 22-300.
Specifically, the single-side test connector for the 10kV cable test provided by the embodiment has the following advantages:
1. it is possible to confirm whether or not the connection is firm by attempting to pull out the turn tongue 4 without turning the cable over.
2. Only need operate in cable head outside, can ensure the inside cleanness of cable head.
3. The rounding reduces the possibility of scratching and further prevents the rotor blade 4 from coming off the copper lug 6 during testing.
4. Simple structure and convenient maintenance.
This embodiment provides a test unilateral of 10kV cable connects, can realize the reliable connection with the copper wiring ear 6 of cable, does not cause the damage to sheath and copper wiring ear 6 again, has safe and reliable's advantage.
The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "under," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented, such as by rotation through 90 degrees or other orientations, and is explained with the spatially relative descriptors herein.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The utility model provides a test unilateral of 10kV cable connects, its characterized in that includes:
the inner wall of the threaded sleeve (1) is provided with internal threads;
a rotating shaft (2);
the middle part of the connecting rod (3) is positioned in the threaded sleeve (1) and is in threaded connection with the threaded sleeve (1), the rotating shaft (2) is fixedly arranged at the first end of the connecting rod (3), and a right-angled trapezoidal through groove is formed in the first end of the connecting rod (3);
rotate tongue piece (4), the first end of rotating tongue piece (4) be equipped with the right trapezoid leads to the groove cooperation and inserts right trapezoid boss that the right trapezoid led to the groove, it passes through to rotate tongue piece (4) pivot (2) with connective bar (3)90 rotate to be connected.
2. The 10kV cable test single-sided test joint according to claim 1,
the cross-sectional graph of the right-angle trapezoidal through groove on a plane perpendicular to the axis of the rotating shaft (2) is a right-angle trapezoid, the right-angle trapezoid comprises a right-angle side and a bevel side, and the rotating shaft (2) is located between the right-angle side and the bevel side; the right-angle side is located the pivot (2) is kept away from one side of screw thread sleeve pipe (1), the hypotenuse is located pivot (2) is close to one side of screw thread sleeve pipe (1).
3. The 10kV cable test single-side test joint as claimed in claim 1, further comprising a two-color rubber sleeve (5), wherein the two-color rubber sleeve (5) is sleeved at the second end of the connecting rod (3), and the two-color rubber sleeve (5) is sprayed with a first color and a second color.
4. The 10kV cable test single-sided test joint as claimed in claim 3, wherein the first color faces upward when the axis of the spindle (2) is horizontal.
5. The 10kV cable test single-sided test joint as claimed in claim 4, wherein the second color faces upward when the axis of the spindle (2) is horizontal.
6. The 10kV cable test single-sided test joint as claimed in claim 1, wherein the mass of the first end of the rotor tongue (4) to the rotary shaft (2) is smaller than the mass of the second end of the rotor tongue (4) to the rotary shaft (2).
7. The 10kV cable test single-sided test joint as claimed in claim 6, wherein a length dimension from a first end of the rotor tongue (4) to the rotary shaft (2) is smaller than a length dimension from a second end of the rotor tongue (4) to the rotary shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921744539.2U CN211148724U (en) | 2019-10-17 | 2019-10-17 | Single-side test joint for 10kV cable test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921744539.2U CN211148724U (en) | 2019-10-17 | 2019-10-17 | Single-side test joint for 10kV cable test |
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| Publication Number | Publication Date |
|---|---|
| CN211148724U true CN211148724U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921744539.2U Active CN211148724U (en) | 2019-10-17 | 2019-10-17 | Single-side test joint for 10kV cable test |
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| CN (1) | CN211148724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983267A (en) * | 2020-08-27 | 2020-11-24 | 广东电网有限责任公司广州供电局 | Experimental appurtenance |
-
2019
- 2019-10-17 CN CN201921744539.2U patent/CN211148724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983267A (en) * | 2020-08-27 | 2020-11-24 | 广东电网有限责任公司广州供电局 | Experimental appurtenance |
| CN111983267B (en) * | 2020-08-27 | 2023-08-29 | 广东电网有限责任公司广州供电局 | Test auxiliary tool |
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