CN216208345U - Detection instrument for detecting sand filling density of fuse type isolating switch - Google Patents
Detection instrument for detecting sand filling density of fuse type isolating switch Download PDFInfo
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- CN216208345U CN216208345U CN202122588116.XU CN202122588116U CN216208345U CN 216208345 U CN216208345 U CN 216208345U CN 202122588116 U CN202122588116 U CN 202122588116U CN 216208345 U CN216208345 U CN 216208345U
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Abstract
The utility model discloses a detection instrument for detecting sand filling density of a fuse type isolating switch, which comprises a push-pull force meter, wherein a detection rod is arranged at the detection end of the push-pull force meter, a mounting frame close to the detection rod is also arranged on the push-pull force meter, a limiting plate extending to one side of the detection rod is arranged on the mounting frame, and one end, far away from the push-pull force meter, of the detection rod penetrates through the limiting plate. This application has the push-pull dynamometer and can accurately detect out concrete resistance value, compares the resistance value that will record with the standard value, just can detect out smoothly whether up to standard effect of the sand density of irritating of high silica sand.
Description
Technical Field
The utility model relates to the field of detection of fuse type disconnecting switches, in particular to a detection instrument for detecting sand filling density of a fuse type disconnecting switch.
Background
The fuse type isolating switch is a fuse combined electrical appliance which combines a traditional fuse, an isolator and a switch into a whole, not only can be operated with load, but also has obvious current limiting characteristic and good selection characteristic, can realize the optimal protection of a circuit, and can be widely applied to a low-voltage distribution system. And the fuse installed in the fuse type isolating switch mainly comprises an outer shell and a fuse piece arranged in the outer shell. High silica sand filled outside the fuse link is filled in the outer shell, and the purposes of arc extinction and rapid cooling can be achieved through the high silica sand filled in the outer shell of the fuse link.
When industrially pouring sand into the fuse inside the fuse type isolating switch, a sand pouring hole is formed in the outer shell of the fuse in advance, then high silica sand is poured into the sand pouring hole, and after the high silica sand fills the outer shell of the fuse, the sand pouring hole is plugged through the sealing plug. Because the existence of the fuse link in the fuse shell body, be difficult to directly perceivedly judge whether high silica sand has tamped the shell body inside when irritating sand, if the sand density of irritating of high silica sand is not up to standard, will directly influence the arc extinguishing performance of fuse.
SUMMERY OF THE UTILITY MODEL
Whether be difficult to directly perceivedly judge the problem of whether high silica sand has tamped the shell body inside when irritating sand in order to improve, this application provides a detecting instrument for detecting fuse formula isolator irritates sand density.
The utility model provides a detecting instrument for detecting fuse formula isolator irritates sand density, including the push-pull effort meter, be provided with the detection stick on the sense terminal of push-pull effort meter, still be provided with the mounting bracket that is close to the detection stick on the push-pull effort meter, be provided with the limiting plate that extends to detection stick one side on the mounting bracket, the limiting plate is passed to the one end that the push-pull effort meter was kept away from to the detection stick.
By adopting the technical scheme, when the sand filling density in the fuse shell needs to be measured, the limiting plate gradually approaches to the sand filling hole along with the continuous penetration of the detection rod by inserting the detection rod into the sand filling hole of the fuse shell; when the limiting plate moves to be in contact with the outer shell of the fuse, the maximum penetration distance of the detection rod can be limited under the action of the limiting plate; the high silica sand located in the fuse outer shell body exerts resistance on the detection rod, specific resistance values can be accurately detected through the push-pull force meter, the detected resistance values are compared with standard values, and whether the sand filling density of the high silica sand reaches the standard can be smoothly detected.
Optionally, the limiting plate is perpendicular to the detection rod, and a side wall of the limiting plate away from the push-pull dynamometer is a plane.
Through adopting above-mentioned technical scheme, when the limiting plate followed the detection stick and moved to the shell body contact with the fuse, because the limiting plate is the plane with the lateral wall that detects stick mutually perpendicular and limiting plate, can play the effect of support to detecting the stick under the effect of limiting plate to can reduce the skew and the skew that detect the stick, improve the accuracy that detects.
Optionally, a sleeve is arranged on the detection rod, an internal thread is arranged on the inner side wall of the sleeve, and the detection rod is connected to the detection end of the push-pull dynamometer through the sleeve in a threaded manner.
By adopting the technical scheme, the detection rod can move towards the direction close to or far away from the limiting plate along the length direction of the detection rod by rotating the sleeve; through will detect the stick and wear out partial length adjustment to suitable position in following the limiting plate to can adjust the inside maximum depth of fuse shell body with detecting the stick.
Optionally, an outer ring with a diameter larger than that of the sleeve is arranged on the outer side wall of the sleeve, and anti-skid threads are arranged on the surface of the outer ring.
Through adopting above-mentioned technical scheme, when needs are rotatory with the sleeve pipe, can provide the impetus for detection personnel through the outer loop to can increase the frictional force on outer loop surface through the anti-skidding line that sets up on the outer loop, thereby enable detection personnel's more smooth rotate the sleeve pipe.
Optionally, the push-pull dynamometer is provided with limit strips, the limit strips are symmetrically arranged on two sides of the mounting rack, and the mounting rack is arranged between the limit strips on the two sides in a sliding manner along the length direction of the detection rod; the mounting frame is provided with a fixing assembly used for fixing the mounting frame on the limiting strip.
By adopting the technical scheme, after the fixing assembly is unlocked to lock the mounting frame, the mounting frame can slide along the length direction of the limiting strip, and at the moment, the relative position between the mounting frame and the detection rod can be adjusted; after finishing the position adjustment of the mounting rack, the mounting rack is fixed on the limiting strips again through the fixing assembly.
Optionally, be provided with a plurality of jacks that link up on the spacing, fixed subassembly is including the inserted bar that slides along the spacing length direction of perpendicular to, inserted bar one end is spacing on the mounting bracket, the jack supplies the inserted bar to wear out from spacing one side.
By adopting the technical scheme, when the fixing component needs to unlock the mounting rack, the insertion rod is withdrawn from the insertion hole in the limiting strip, and the position of the mounting rack can be adjusted in a sliding manner; after the position of the mounting frame is adjusted, the inserted bar is inserted into the proper jack, and the mounting frame can be locked again under the insertion fit of the inserted bar and the jack.
Optionally, the fixing assembly further comprises a spring which stretches along the direction that the inserted rod is inserted into the insertion hole, one end of the spring is connected with the inserted rod, and the other end of the spring is connected with the mounting frame.
By adopting the technical scheme, when the position of the mounting frame is adjusted, the inserted rod can be automatically ejected into the corresponding jack under the action of the elastic force of the spring when the inserted rod moves to be aligned with the corresponding jack, so that the automatic locking of the inserted rod is realized; when the lock of inserted bar to the mounting bracket is relieved to needs, through withdrawing the inserted bar from the jack, the spring will be compressed gradually this moment, withdraws the back from the jack completely when the inserted bar, just can slide the mounting bracket.
Optionally, the mounting bracket is provided with a yielding groove with an opening facing the adjacent limiting strip, the inserted bar is arranged in the yielding groove in a sliding mode, and one end, far away from the inserted bar, of the spring is arranged in the yielding groove.
Through adopting above-mentioned technical scheme, when withdrawing the inserted bar from the jack, the inserted bar will be impressed gradually to the inslot that steps down, can hide the spring through the groove of stepping down to reduced the adverse effect that external environment produced the spring, prolonged the life of spring.
In summary, the present application includes at least one of the following beneficial technical effects:
the specific resistance value can be accurately detected through the push-pull force meter, the detected resistance value is compared with a standard value, and whether the sand filling density of the high-silica sand reaches the standard can be smoothly and accurately detected.
Drawings
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present application.
Fig. 2 is a partial structural schematic view of fig. 1.
Fig. 3 is a schematic overall structure diagram of the second embodiment of the present application.
Fig. 4 is an exploded view of the partial structure of fig. 3.
Fig. 5 is an enlarged schematic view of a structure at a in fig. 4.
Description of reference numerals:
1. a push-pull force meter; 11. a limiting strip; 111. a jack; 2. a detection rod; 21. a sleeve; 22. an outer ring; 3. a mounting frame; 31. a limiting plate; 4. a fixing assembly; 41. inserting a rod; 42. a spring; 5. a yielding groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
Example 1:
this application implementation 1 discloses a detecting instrument for detecting fuse formula isolator irritates sand density. Referring to fig. 1 and 2, the detecting instrument for detecting the sand filling density of the fuse type disconnecting switch comprises a push-pull force meter 1, the push-pull force meter 1 in the embodiment adopts an idelberg digital display type push-pull force meter with the model number of HP-20, and a detecting rod 2 for being inserted into a sand filling hole in a fuse outer shell is arranged at a detecting end of the push-pull force meter 1.
As shown in fig. 1 and 2, a hollow sleeve 21 is fixedly installed at one end of the detection rod 2 close to the push-pull force meter 1, internal threads are arranged on the inner side wall of the sleeve 21, the detection rod 2 is connected to the detection end of the push-pull force meter 1 through the sleeve 21, and the length direction of the detection rod 2 extends along the length direction of the push-pull force meter 1. An outer ring 22 with the diameter larger than that of the sleeve 21 is integrally formed on the outer side wall of the sleeve 21, the outer ring 22 and the sleeve 21 are coaxially arranged, and anti-skid grains used for increasing the surface friction force are arranged on the outer surface of the outer ring 22.
As shown in fig. 1 and 2, a mounting bracket 3 close to the detection rod 2 is mounted on the back of the push-pull dynamometer 1, and the mounting bracket 3 is fixed to the push-pull dynamometer 1 by screwing with a bolt. The mounting bracket 3 is close to the lateral wall of detecting stick 2 on integrated into one piece limited plate 31, limited plate 31 to being close to the direction of detecting stick 2 tip and buckling. And the length direction mutually perpendicular of limiting plate 31 and detection stick 2, the lateral wall that limiting plate 31 deviates from push-pull dynamometer 1 sets up to the plane, is provided with the perforation that link up on the limiting plate 31, and the perforation is just right with the tip of detection stick 2, and the tip of detection stick 2 is worn out to the one side that limiting plate 31 deviates from push-pull dynamometer 1 in the perforation.
Example 2:
the embodiment further provides a detection instrument for detecting sand filling density of the fuse type disconnecting switch, which is different from the detection instrument in embodiment 1, as shown in fig. 3 and 4, two symmetrically-arranged limit strips 11 are fixedly installed on the back of the push-pull force meter 1, and the length direction of the limit strips 11 extends along the length direction of the push-pull force meter 1. The mounting rack 3 positioned at the back of the push-pull dynamometer 1 is arranged between the limiting strips 11 at the two sides, and the mounting rack 3 is arranged at the back of the push-pull dynamometer 1 in a sliding mode along the length direction of the limiting strips 11.
As shown in fig. 4 and 5, two sets of fixing assemblies 4 for fixing the mounting bracket 3 on the limiting strip 11 are arranged on the mounting bracket 3. The fixing components 4 are symmetrically arranged on two sides of the mounting rack 3, and the fixing components 4 are respectively close to the adjacent limiting strips 11. The limiting strip 11 is provided with a plurality of through insertion holes 111, the number of the insertion holes 111 in the embodiment is 5, and the insertion holes 111 are sequentially and uniformly distributed at intervals along the length direction of the limiting strip 11.
As shown in fig. 4 and 5, two abdicating grooves 5 with openings facing the adjacent limiting strips 11 are formed in the mounting frame 3, and the abdicating grooves 5 are located at one end of the mounting frame 3 away from the detection rod 2. The fixing component 4 comprises inserting rods 41 which are arranged in the respective yielding grooves 5 in a sliding mode along the length direction perpendicular to the limiting strips 11, the fixing component 4 further comprises springs 42 arranged in the yielding grooves 5, and the springs 42 stretch along the length direction of the inserting rods 41. One end of the spring 42 is fixed with the side wall of the inserted bar 41 departing from the limit strip 11, and the other end of the spring 42 is fixedly connected with the inner side wall of the abdicating groove 5 where the spring 42 is respectively located. One end of the plunger 41 away from the spring 42 is inserted into the respective opposite insertion holes 111 under the elastic force of the spring 42, and the end of the plunger 41 passes through the position-limiting bar 11.
The implementation principle of the detecting instrument for detecting the sand filling density of the fuse type isolating switch in the embodiment of the application is as follows:
when needs are measured the inside sand density of irritating of fuse shell body, insert through the sand hole of irritating that will detect stick 2 from the fuse shell body, along with detecting 2 constantly deepening, limiting plate 31 will also be close to the sand hole of irritating gradually. When the limit plate 31 moves to contact with the outer shell of the fuse, the maximum penetration distance of the detection rod 2 can be limited under the action of the limit plate 31. The high silica sand that lies in fuse shell body inside at this moment will exert the resistance for measuring stick 2, just can accurately detect out specific resistance value through push-pull dynamometer 1, compares the resistance value that will record with the standard value, just can smoothly detect out whether up to standard of the sand density of irritating of high silica sand.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A detecting instrument for detecting fuse formula isolator irritates sand density, its characterized in that: including push-pull dynamometer (1), be provided with on the sense terminal of push-pull dynamometer (1) and detect stick (2), still be provided with on push-pull dynamometer (1) and be close to mounting bracket (3) that detect stick (2), be provided with on mounting bracket (3) and extend to limiting plate (31) that detect stick (2) one side, limiting plate (31) are passed to the one end that push-pull dynamometer (1) was kept away from to detection stick (2).
2. The detecting instrument for detecting sand filling density of the fuse type disconnecting switch according to claim 1, wherein: the limiting plate (31) is perpendicular to the detection rod (2), and the side wall of the limiting plate (31) departing from the push-pull dynamometer (1) is a plane.
3. The detecting instrument for detecting sand filling density of the fuse type disconnecting switch according to claim 2, wherein: the detection rod (2) is provided with a sleeve (21), an internal thread is arranged on the inner side wall of the sleeve (21), and the detection rod (2) is connected to the detection end of the push-pull dynamometer (1) through the sleeve (21) in a threaded mode.
4. A testing instrument for testing sand-poured density of a fused disconnecting switch according to claim 3, wherein: an outer ring (22) with the diameter larger than that of the sleeve (21) is arranged on the outer side wall of the sleeve (21), and anti-skid grains are arranged on the surface of the outer ring (22).
5. The detecting instrument for detecting sand filling density of the fuse type disconnecting switch according to claim 1, wherein: the push-pull dynamometer (1) is provided with limiting strips (11), the limiting strips (11) are symmetrically arranged on two sides of the mounting rack (3), and the mounting rack (3) is arranged between the limiting strips (11) on the two sides in a sliding mode along the length direction of the detection rod (2); the mounting rack (3) is provided with a fixing component (4) for fixing the mounting rack (3) on the limiting strip (11).
6. The detecting instrument for detecting sand filling density of the fuse type disconnecting switch according to claim 5, wherein: be provided with a plurality of jacks (111) that link up on spacing (11), fixed subassembly (4) are including inserted bar (41) that slide along perpendicular to spacing (11) length direction, inserted bar (41) one end is spacing on mounting bracket (3), jack (111) supply inserted bar (41) to wear out from spacing (11) one side.
7. The detecting instrument for detecting sand filling density of the fuse type disconnecting switch according to claim 6, wherein: fixed subassembly (4) still including inserting flexible spring (42) of jack (111) direction along inserted bar (41), spring (42) one end is connected with inserted bar (41), spring (42) other end is connected with mounting bracket (3).
8. The detecting instrument for detecting sand filling density of the fuse type disconnecting switch according to claim 7, wherein: be provided with recess (5) that abdicate of opening orientation adjacent spacing strip (11) on mounting bracket (3), inserted bar (41) slide to set up in recess (5), the one end setting that inserted bar (41) were kept away from in spring (42) is in recess (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122588116.XU CN216208345U (en) | 2021-10-25 | 2021-10-25 | Detection instrument for detecting sand filling density of fuse type isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122588116.XU CN216208345U (en) | 2021-10-25 | 2021-10-25 | Detection instrument for detecting sand filling density of fuse type isolating switch |
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| Publication Number | Publication Date |
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| CN216208345U true CN216208345U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122588116.XU Active CN216208345U (en) | 2021-10-25 | 2021-10-25 | Detection instrument for detecting sand filling density of fuse type isolating switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116190164A (en) * | 2023-05-05 | 2023-05-30 | 威准（厦门）自动化科技有限公司 | Automatic power fuse assembling, sand filling and detecting line |
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2021
- 2021-10-25 CN CN202122588116.XU patent/CN216208345U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116190164A (en) * | 2023-05-05 | 2023-05-30 | 威准（厦门）自动化科技有限公司 | Automatic power fuse assembling, sand filling and detecting line |
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