CN212750540U - Test transformer termination - Google Patents
Test transformer termination Download PDFInfo
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- CN212750540U CN212750540U CN202021655696.9U CN202021655696U CN212750540U CN 212750540 U CN212750540 U CN 212750540U CN 202021655696 U CN202021655696 U CN 202021655696U CN 212750540 U CN212750540 U CN 212750540U
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Abstract
The utility model provides a test transformer wiring device, which comprises a shell, wherein the shell is hollow and one end of the shell is closed; the movable connecting unit is arranged in the shell; the clamping unit is positioned between the movable connecting unit and the unsealed end part of the shell, and the clamping unit is hinged with the inner surface of the shell; the line pressing part is arranged at one closed end of the shell and can be connected with the shell in a sliding way; the cable of the device to be tested can extend into the space between the line pressing part and the shell and is pressed tightly by the line pressing part; the conducting rod is arranged on the testing transformer, a high-voltage test signal output by the testing transformer is output outwards through the conducting rod, a through limiting hole is formed in the conducting rod, and the shape of the limiting hole is matched with the outline of the shell; the movable connection unit can drive the clamping unit to rotate relative to the shell, so that the shell can be smoothly arranged in the limiting hole in a penetrating mode and cannot be separated from the limiting hole.
Description
Technical Field
The utility model relates to a light-duty test transformer equipment technical field especially relates to a test transformer termination.
Background
The test transformer is the necessary equipment for power equipment detection and preventive test. With the development of the power industry in China, the requirements on the test transformer are higher and higher, and the oil-immersed test transformer is limited by the fact that transformer oil is easy to absorb moisture and age and needs to be maintained regularly. The inflatable test transformer gradually replaces the oil-immersed test transformer and is widely applied.
The working process of the test transformer is as follows: the input end of the test transformer is connected with the primary side of a coil on the transformer, and the secondary side of the transformer coil is connected through a conducting rod. By inputting low voltage to the primary side of the coil, according to the electromagnetic induction principle, the iron core establishes a magnetic field, high voltage is generated on the secondary side of the coil, and the high voltage is output through the conducting rod, so that power frequency withstand voltage tests of electric power and electrical equipment are realized. The transformer coil is usually provided with a guide post, one end of the conductive rod is inserted into the guide post, and the other end outputs high voltage as a detection signal of a withstand voltage test. Usually, the high-voltage output end of the conducting rod is connected with a cable of equipment to be tested through a bolt, the shape of the cable is different, the pressing effect of the bolt is not stable and reliable enough, and the bolt needs to be frequently disassembled and is easy to lose, so that the normal operation of the test can be influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can adapt to different test equipment's cable shape, connection effect reliable, difficult loss and the experimental transformer termination that drops.
The technical scheme of the utility model is realized like this: the utility model provides a test transformer termination for be connected the high-voltage testing signal of test transformer output and the cable of treating test equipment, include:
the shell (1) is hollow, one end of the shell is closed, and a first clamping groove (11) and a second clamping groove (12) which are communicated are formed in the shell (1);
the movable connecting unit (2) is arranged in the shell (1), and one end of the movable connecting unit (2) is embedded in the first clamping groove (11) and is connected with the shell (1) in a sliding manner; the other end of the movable connecting unit (2) extends towards the unclosed end of the shell (1);
the clamping unit (3) is positioned in the shell (1) and is positioned between the movable connecting unit (2) and the unsealed end part of the shell (1), the clamping unit (3) is hinged with the inner surface of the shell (1), the clamping unit (3) is provided with a first end part (31) and a second end part (32), the first end part (31) extends towards the movable connecting unit (2), and the second end part (32) penetrates through the unsealed end of the shell (1) and extends outwards along the axial direction and the radial direction of the shell (1);
the pressing part (4), the pressing part (4) is arranged on the shell (1) at the second clamping groove (12), and the pressing part (4) is connected with the second clamping groove (12) in a sliding mode;
the conducting rod (5) is arranged on the testing transformer, a high-voltage test signal output by the testing transformer is output outwards through the conducting rod (5), a through limiting hole (51) is formed in the conducting rod (5), and the shape of the limiting hole (51) is matched with the outline of the shell (1);
the cable of the device to be tested extends into the second clamping groove (12), and the wire pressing part (4) slides relative to the second clamping groove (12) and presses the cable on the shell (1); the movable connecting unit (2) slides along the first clamping groove (11) and drives the clamping unit (3) to rotate relative to the shell (1), so that the second end portion (32) of the clamping unit (3) can penetrate through the limiting hole (51) and abut against the surface of the conducting rod (5).
On the basis of the technical scheme, preferably, the movable connecting unit (2) comprises a pressing block (21), a pressing rod (22) and a first elastic resetting piece (23), the pressing block (21) is embedded in the first clamping groove (11) and is slidably connected with the first clamping groove (11), one end of the pressing rod (22) is fixedly connected with the pressing block (21), the other end of the pressing rod (22) extends towards the direction of the clamping unit (3), the first elastic resetting piece (23) is sleeved on the pressing rod (22), and two ends of the first elastic resetting piece (23) are fixedly connected with the inner surfaces of the pressing block (21) and the shell (1) respectively.
Further preferably, the clamping unit (3) further comprises a reset block (33) and a second elastic reset piece (34), the reset block (33) is abutted to the surface of the first end portion (31) of the clamping unit (3), the second elastic reset piece (34) is arranged between the reset block (33) and the shell (1), and two ends of the second elastic reset piece (34) are fixedly connected with the shell (1) and the reset block (33) respectively.
Further preferably, when the pressing block (21) slides to a limit position close to the unsealed end of the shell (1) along the first clamping groove (11), the pressing rod (22) abuts against the surface of the first end (31) of the clamping unit (3) and pushes the second end (32) of the clamping unit (3) to rotate relative to the shell (1), so that the projection of the second end (32) of the clamping unit (3) on the axial section of the shell (1) does not exceed the contour of the shell (1).
Further preferably, the first elastic restoring piece (23) and the second elastic restoring piece (34) are both restoring springs.
Preferably, the clamping units (3) are arranged in two groups, and the clamping units (3) are symmetrically arranged on the inner surface of the shell (1); one end of the pressure lever (22) far away from the pressing block (21) is positioned between the first end parts (31) of the two groups of clamping units (3).
Further preferably, the second clamping groove (12) is C-shaped; the wire pressing part (4) comprises a handle (41) and a wire pressing plate (42), the handle (41) is in threaded connection with the shell (1), the wire pressing plate (42) is embedded in the second clamping groove (12) and is in sliding connection with the second clamping groove, and the handle (41) is hinged to the wire pressing plate (42).
On the basis of the technical scheme, preferably, the outer surface of the shell (1) is further coated with an insulating layer (6).
The utility model provides a pair of test transformer termination for prior art, has following beneficial effect:
(1) the detachable wiring device matched with the limiting hole is arranged on the conducting rod, when the cable connector is not used, the wiring device can be clamped on the surface of the conducting rod, the cable connector can be conveniently pulled out and wired when the cable connector is used, and the cable pressing part adopts an approaching mode to clamp cables and can adapt to cables of various specifications;
(2) the movable connecting unit can drive the clamping unit to open or retract, so that the wiring device can smoothly penetrate through the conducting rod, the wiring device is prevented from falling off from the conducting rod, and the contact area of the wiring device and the conducting rod can be kept stable and unchanged;
(3) the number of the clamping units can be adjusted as required, and a better locking effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.
Fig. 1 is a front view of a wiring device of a test transformer of the present invention;
FIG. 2 is a front view of a half-section of a wiring device of a test transformer of the present invention;
fig. 3 is a front view of the testing transformer wiring device of the present invention in a use state;
fig. 4 is a front view in half section of fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments 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 work all belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the technical solution of the present invention is realized as follows: the utility model provides a test transformer termination for be connected the high-voltage testing signal of test transformer output and the cable of treating test equipment, include:
the device comprises a shell 1, wherein the interior of the shell 1 is hollow, one end of the shell is closed, and a first clamping groove 11 and a second clamping groove 12 which are communicated are formed in the shell 1; the first clamping groove and the second clamping groove 12 of the utility model both penetrate through the shell along the radial direction of the shell 1;
the movable connecting unit 2 is arranged inside the shell 1, and one end of the movable connecting unit 2 is embedded in the first clamping groove 11 and is connected with the shell 1 in a sliding manner; the other end of the movable connecting unit 2 extends towards the unclosed end of the shell 1;
the clamping unit 3 is also positioned inside the shell 1 and is positioned between the movable connecting unit 2 and the unsealed end part of the shell 1, the clamping unit 3 is hinged with the inner surface of the shell 1, the clamping unit 3 is provided with a first end part 31 and a second end part 32, the first end part 31 extends towards the movable connecting unit 2, and the second end part 32 penetrates through the unsealed end of the shell 1 and extends outwards along the axial direction and the radial direction of the shell 1 respectively; as can be seen from fig. 2, the end of the clamping unit 3 extending out of the housing 1 in the initial state exceeds the edge of the housing, and the clamping unit 3 and the housing 1 in this state cannot be directly connected to the high-voltage output end of the test transformer; only when the clamping unit 3 rotates relative to the shell 1, the position of one end, extending out of the shell 1, of the clamping unit 3 changes relative to the shell, and the shell 1 can be smoothly connected with the high-voltage output end of the test transformer;
the line pressing part 4 is arranged on the shell 1 at the second clamping groove 12, and the line pressing part 4 is connected with the second clamping groove 12 in a sliding mode; a cable of the device to be tested can extend into the second clamping groove 12 and is compressed by the wire pressing part 4;
the conducting rod 5 is arranged on the testing transformer, a high-voltage test signal output by the testing transformer is output outwards through the conducting rod 5, a through limiting hole 51 is formed in the conducting rod 5, and the shape of the limiting hole is matched with the outline of the shell 1; the conducting rod 5 is a high-voltage output end of the test transformer and can be matched with the shell to realize insertion connection;
when the test device is used, a cable of the device to be tested extends into the second clamping groove 12, and the wire pressing part 4 slides relative to the second clamping groove 12 and presses the cable on the shell 1; the movable connection unit 2 slides along the first clamping groove 11 and drives the clamping unit 3 to rotate relative to the shell 1, so that the second end portion 32 of the clamping unit 3 can penetrate through the limiting hole 51, the clamping unit 3 is reset, the clamping unit 3 can abut against the surface of the conducting rod 5, and the shell 1 is prevented from being separated.
The movable connecting unit 2 comprises a pressing block 21, a pressing rod 22 and a first elastic resetting piece 23, the pressing block 21 is embedded in the first clamping groove 11 and is connected with the first clamping groove 11 in a sliding mode, one end of the pressing rod 22 is fixedly connected with the pressing block 21, the other end of the pressing rod 22 extends towards the direction of the clamping unit 3, the first elastic resetting piece 23 is sleeved on the pressing rod 22, and two ends of the first elastic resetting piece 23 are fixedly connected with the pressing block 21 and the inner surface of the shell 1 respectively. The pressing piece 21 of the movable link unit 2 is an operation portion which protrudes outside the housing and can be shifted by hand. The pressing rod 22 extends out to abut against and press the clamping unit 3 under the driving of the pressing block 21, so that the posture of the clamping unit 3 is changed. When the pressing block 21 slides to an extreme position close to the unsealed end of the housing 1 along the first clamping groove 11, the pressing rod 22 abuts against the surface of the first end 31 of the clamping unit 3 and pushes the second end 32 of the clamping unit 3 to rotate relative to the housing 1, so that the projection of the second end 32 of the clamping unit 3 on the axial section of the housing 1 does not exceed the contour of the housing 1. At this time, the housing 1 can smoothly extend into the limiting hole 51 of the conducting rod 5.
The clamping unit 3 further comprises a reset block 33 and a second elastic reset piece 34, the reset block 33 abuts against the surface, close to the shell 1, of the first end portion 31 of the clamping unit 3, the second elastic reset piece 34 is arranged between the reset block 33 and the shell 1, and two ends of the second elastic reset piece 34 are fixedly connected with the shell 1 and the reset block 33 respectively. After the reset block 33 and the second elastic reset piece 34 reset the movable connection unit 2 and separate from the contact with the clamping unit 3, the clamping unit 3 can also be automatically reset.
The utility model discloses in, first elasticity resets 23 and second elasticity resets 34 and is reset spring.
As shown in fig. 2, the clamping units 3 of the present invention may be two groups, and the clamping units 3 are symmetrically disposed on the inner surface of the housing 1; one end of the pressure rod 22 far away from the pressure block 21 is located between the first end parts 31 of the two clamping units 3. Of course, the clamping unit 3 may also be 4 sets symmetrically arranged, and the structure thereof is basically similar, which can further increase the contact area with the conducting rod 5, and provide a more stable plugging installation effect.
The second clamping groove 12 is C-shaped; the wire pressing part 4 comprises a handle 41 and a wire pressing plate 42, the handle 41 is in threaded connection with the shell 1, the wire pressing plate 42 is embedded in the second clamping groove 12 and is in sliding connection with the second clamping groove, and the handle 41 is further hinged to the wire pressing plate 42. By screwing the handle 41, the wire pressing plate 42 is driven to slide along the second clamping groove 12 and press the inserted cable of the device to be tested.
The outer surface of the shell 1 is further coated with an insulating layer 6, so that the insulating and shielding functions can be achieved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a test transformer termination for be connected the high-voltage test signal of test transformer output and the cable of waiting test equipment, its characterized in that: comprises that
The shell (1) is hollow, one end of the shell is closed, and a first clamping groove (11) and a second clamping groove (12) which are communicated are formed in the shell (1);
the movable connecting unit (2) is arranged in the shell (1), and one end of the movable connecting unit (2) is embedded in the first clamping groove (11) and is connected with the shell (1) in a sliding manner; the other end of the movable connecting unit (2) extends towards the unclosed end of the shell (1);
the clamping unit (3) is positioned in the shell (1) and is positioned between the movable connecting unit (2) and the unsealed end part of the shell (1), the clamping unit (3) is hinged with the inner surface of the shell (1), the clamping unit (3) is provided with a first end part (31) and a second end part (32), the first end part (31) extends towards the movable connecting unit (2), and the second end part (32) penetrates through the unsealed end of the shell (1) and extends outwards along the axial direction and the radial direction of the shell (1);
the pressing part (4), the pressing part (4) is arranged on the shell (1) at the second clamping groove (12), and the pressing part (4) is connected with the second clamping groove (12) in a sliding mode;
the conducting rod (5) is arranged on the testing transformer, a high-voltage test signal output by the testing transformer is output outwards through the conducting rod (5), a through limiting hole (51) is formed in the conducting rod (5), and the shape of the limiting hole (51) is matched with the outline of the shell (1);
the cable of the device to be tested extends into the second clamping groove (12), and the wire pressing part (4) slides relative to the second clamping groove (12) and presses the cable on the shell (1); the movable connecting unit (2) slides along the first clamping groove (11) and drives the clamping unit (3) to rotate relative to the shell (1), so that the second end portion (32) of the clamping unit (3) can penetrate through the limiting hole (51) and abut against the surface of the conducting rod (5).
2. A test transformer termination according to claim 1, wherein: swing joint unit (2), including briquetting (21), depression bar (22) and first elasticity piece (23) that resets, briquetting (21) inlay and establish in first draw-in groove (11) to with first draw-in groove (11) slidable connection, the one end and the briquetting (21) fixed connection of depression bar (22), the other end of depression bar (22) extends towards joint unit (3) direction, first elasticity resets and overlaps and establish on depression bar (22) piece (23), the both ends of first elasticity piece (23) that resets respectively with briquetting (21) and casing (1) internal surface fixed connection.
3. A test transformer termination according to claim 2, wherein: the clamping unit (3) further comprises a reset block (33) and a second elastic reset piece (34), the reset block (33) is abutted to the surface, close to the shell (1), of the first end portion (31) of the clamping unit (3), the second elastic reset piece (34) is arranged between the reset block (33) and the shell (1), and two ends of the second elastic reset piece (34) are fixedly connected with the shell (1) and the reset block (33) respectively.
4. A test transformer termination according to claim 3, wherein: when the pressing block (21) slides to a limit position close to the unsealed end of the shell (1) along the first clamping groove (11), the pressing rod (22) abuts against the surface of the first end (31) of the clamping unit (3) and pushes the second end (32) of the clamping unit (3) to rotate relative to the shell (1), so that the projection of the second end (32) of the clamping unit (3) on the axial section of the shell (1) does not exceed the outline of the shell (1).
5. A test transformer termination according to claim 3, wherein: the first elastic reset piece (23) and the second elastic reset piece (34) are both reset springs.
6. A test transformer termination according to claim 2, wherein: the clamping units (3) are arranged in two groups, and the clamping units (3) are symmetrically arranged on the inner surface of the shell (1); one end of the pressure lever (22) far away from the pressing block (21) is positioned between the first end parts (31) of the two groups of clamping units (3).
7. A test transformer termination according to claim 2, wherein: the second clamping groove (12) is C-shaped; the wire pressing part (4) comprises a handle (41) and a wire pressing plate (42), the handle (41) is in threaded connection with the shell (1), the wire pressing plate (42) is embedded in the second clamping groove (12) and is in sliding connection with the second clamping groove, and the handle (41) is hinged to the wire pressing plate (42).
8. A test transformer termination according to claim 1, wherein: the outer surface of the shell (1) is further coated with an insulating layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021655696.9U CN212750540U (en) | 2020-08-11 | 2020-08-11 | Test transformer termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021655696.9U CN212750540U (en) | 2020-08-11 | 2020-08-11 | Test transformer termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212750540U true CN212750540U (en) | 2021-03-19 |
Family
ID=74987815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021655696.9U Active CN212750540U (en) | 2020-08-11 | 2020-08-11 | Test transformer termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212750540U (en) |
-
2020
- 2020-08-11 CN CN202021655696.9U patent/CN212750540U/en active Active
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