CN113063986A - Cable insulation resistance detection device - Google Patents
Cable insulation resistance detection device Download PDFInfo
- Publication number
- CN113063986A CN113063986A CN202110151406.XA CN202110151406A CN113063986A CN 113063986 A CN113063986 A CN 113063986A CN 202110151406 A CN202110151406 A CN 202110151406A CN 113063986 A CN113063986 A CN 113063986A
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- cable
- test box
- state
- guide wheels
- shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The invention provides a cable insulation resistance detection device, which relates to the field of cables and comprises a test box, wherein a wire inlet and a wire outlet are formed in the side surface of the test box, and are close to the upper end surface of the test box; the guide shaft is fixed on the inner side wall of the test box; set up the line ball portion between two guiding axles, after the cable passed inlet and outlet, the side surface contact of the top of cable and leading wheel in the test box, under the exogenic action, make the cable of outlet department fixed back, line ball portion applys vertical decurrent power to the cable in the test box, make partly cable motion in the test box be close to the position of bottom to the test box, through this device, can prevent to have partly water to spatter cable both ends joint department or spatter people's hand in the test process, thereby make the test result more accurate.
Description
Technical Field
The invention relates to the field of cables, in particular to a cable insulation resistance detection device.
Background
The cable is used for transmitting and distributing electric energy, and is commonly used for urban low power grids, power station leading-out lines, power supply inside working condition enterprises and power transmission lines under river-crossing seawater. The proportion of cables in power lines, which are cable products used in the main lines of power systems for transmitting and distributing high-power electrical energy, is increasing. When the cable is produced, a certain amount of samples are extracted to test the insulation resistance so as to judge whether the insulation resistance of the cable meets the requirement. During testing, a cable sample is placed into a water tank containing water, and then two ends of the cable sample are connected with an insulation resistance tester for testing the insulation resistance of the cable.
The applicant found that: when the staff puts the cable into or takes out the basin, make water spill easily, if some water splashes cable both ends joint department or splashes on people's hand, continues to be connected cable both ends and insulation resistance tester like this, can influence the test result.
Disclosure of Invention
In view of this, an object of one or more embodiments of the present disclosure is to provide a cable insulation resistance detection apparatus, so as to solve the technical problem in the prior art that when a worker puts or takes a cable into or out of a water tank, water is easily splashed out, and if some water splashes to joints at two ends of the cable or to hands of the worker, the two ends of the cable are continuously connected to an insulation resistance tester, which may affect a test result.
In view of the above object, one or more embodiments of the present specification provide a cable insulation resistance detection apparatus including:
the testing box is characterized in that a wire inlet and a wire outlet are arranged on the side surface of the testing box, the wire inlet and the wire outlet are close to the upper end surface of the testing box, and the wire inlet is opposite to the corresponding wire outlet;
the guide shaft is fixed on the inner side wall of the test box, and the guide wheels correspond to the wire inlets one by one;
and the wire pressing part is arranged between the two guide shafts, after the cable passes through the wire inlet and the wire outlet, the cable in the test box is in contact with the side surface above the guide wheel, and after the cable at the wire outlet is fixed under the action of external force, the wire pressing part applies vertical downward force to the cable in the test box, so that a part of the cable in the test box moves to a position close to the bottom in the test box.
Further, the cable between the guide wheels at least comprises a first state and a second state, and in the first state, the cable between the guide wheels is positioned below the upper wheel, and the upper wheel is positioned above the guide wheels; when the test box is in the second state, part of the cable between the guide wheels is positioned below the guide wheels, and the part of the cable is positioned in water after the test box is filled with water from the water inlet;
the line ball portion includes:
the test box comprises at least one upper shaft and at least one upper wheel which is rotatably connected with the upper shaft, wherein the end part of the upper shaft is in sliding connection with a side wall groove arranged on the inner side wall of the test box, and the centers of the two guide wheels and the center of the corresponding upper wheel are positioned in the same plane;
and the pushing mechanism is connected with the upper shaft and is used for driving the upper shaft to slide up and down along the side wall groove, so that the cable between the guide wheels keeps the first state or the second state or is switched between the first state and the second state.
Furthermore, the linkage device comprises a plurality of linkage rods, wherein a plurality of upper shafts are arranged, and adjacent upper shafts are connected through the linkage rods.
Further, the pushing mechanism includes:
the push rods are fixedly connected with the side surface of one upper shaft, penetrate through the upper end surface of the test box and extend to the upper part of the test box;
and the fixing component is arranged on the upper end surface of the test box and is used for fixing the position of the push rod when the cable between the guide wheels is in a first state or a second state.
Further, the fixing assembly includes:
the fixing block is positioned on one side of the push rod and fixed on the upper end surface of the test box, and a sliding hole is formed in the fixing block;
the limiting rod is connected with the sliding hole in a sliding mode, one end of the spring is fixedly connected with the end face, located in the sliding hole, of the limiting rod, and the other end of the spring is fixed to the bottom of the sliding hole;
the electromagnet is fixed at the bottom of the sliding hole;
the push rod is provided with an upper limiting hole and a lower limiting hole, when one end of the limiting rod is located in the lower limiting hole, the cable between the guide wheels is in a first state, and when one end of the limiting rod is located in the upper limiting hole, the cable between the guide wheels is in a second state.
Furthermore, the push rod comprises a connecting rod, and the top ends of the push rods are fixed on the side surface of the connecting rod.
The cable fixing device comprises a lower shaft and lower wheels rotatably connected with the lower shaft, the lower shaft corresponds to the upper shaft one by one, the lower shaft is located right below the corresponding upper shaft, the lower shaft is connected with the corresponding upper shaft through a connecting piece, one lower wheel is arranged right below each upper wheel, and a gap between each upper wheel and the corresponding lower wheel is equal to the outer diameter of the cable.
And the water distributor further comprises a water guide pipe, one end of the water guide pipe is communicated with the water inlet, and the other end of the water guide pipe is close to the bottom of the test box.
The invention has the beneficial effects that: after the cable penetrates into the test wire from the wire inlet, the cable is enabled to continuously penetrate into the test box, when the cable passes through the guide wheel, the cable is enabled to be in contact with the side surface above the guide wheel, after the cable passes through the wire outlet, the cable at the wire outlet is enabled to be fixed and maintained under the action of external force, then the wire pressing part applies vertical downward force to the cable in the test box, a part of cable in the test box moves to a position close to the bottom in the test box, after the completion, the electromagnetic valve is enabled to close the water outlet, then a proper amount of water is added from the water inlet, so that the water in the test box is enabled to be below the guide wheel, then two ends of the cable are connected with the insulation resistance tester for testing, and the cable is pulled outwards from the wire outlet while testing is carried out, and finally the test is completed, through this device, can prevent to have partly water to spatter cable both ends to connect the department or spatter on people's hand at the test procedure to make the test result more accurate.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
FIG. 1 is a first schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a first schematic structural diagram illustrating an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fixing assembly in an embodiment of the invention.
Wherein, 1, a test box; 2. a water inlet; 3. a water outlet; 4. a sidewall groove; 5. a water conduit; 6. a wire inlet; 7. an outlet; 8. a connecting rod; 9. a linkage rod; 10. a push rod; 11. an upper limiting hole; 12. a lower limiting hole; 13. a guide wheel; 14. a guide shaft; 15. an upper wheel; 16. an upper shaft; 17. a lower wheel; 18. a lower shaft; 26. a fixed block; 27. a limiting rod; 28. an electromagnet; 29. a slide hole; 30. a spring.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In view of the above object, a first aspect of the present invention provides an embodiment of a cable insulation resistance detection apparatus, as shown in fig. 1 and 2, including:
the testing box comprises a testing box 1, wherein a wire inlet 6 and a wire outlet 7 are arranged on the side surface of the testing box 1, the wire inlet 6 and the wire outlet 7 are both close to the upper end surface of the testing box 1, and the wire inlet 6 is opposite to the corresponding wire outlet 7;
the test box comprises a guide shaft 14 and at least one guide wheel 13 which is rotatably connected with the guide shaft 14, wherein the guide shaft 14 is arranged in the test box 1 at a position close to the wire inlet 6 and a position close to the wire outlet 7, the guide shaft 14 is fixed on the inner side wall of the test box 1, and the guide wheels 13 correspond to the wire inlets 6 one by one;
and the wire pressing part is arranged between the two guide shafts 14, after the cable passes through the wire inlet 6 and the wire outlet 7, the cable in the test box 1 is contacted with the side surface above the guide wheel 13, and after the cable at the wire outlet 7 is fixed under the action of external force, the wire pressing part applies vertical downward force to the cable in the test box 1, so that a part of the cable in the test box 1 moves to a position close to the bottom in the test box 1.
In this embodiment, after the cable is inserted into the test wire through the wire inlet 6, the cable is further inserted into the test box 1, and when the cable passes through the guide wheel 13, the cable is ensured to contact with the side surface above the guide wheel 13, after the cable passes through the wire outlet 7, the cable at the wire outlet 7 is fixed and maintained under the action of external force, then the wire pressing part applies vertical downward force to the cable in the test box 1, so that a part of the cable in the test box 1 moves to a position close to the bottom in the test box 1, after the completion, the electromagnetic valve is ensured to close the water outlet 3, then a proper amount of water is added from the water inlet 2, so that the water in the test box 1 is below the guide wheel 13, then the two ends of the cable are connected with the insulation resistance tester for testing, and the test is completed while the cable is pulled outwards through the wire outlet 7, through this device, can prevent to have partly water to spatter cable both ends to connect the department or spatter on people's hand at the test procedure to make the test result more accurate.
As an embodiment, as shown in fig. 1 and 2, the cable between the guide wheels 13 includes at least a first state and a second state, in the first state, the cable between the guide wheels 13 is located below the upper wheel 15, and the upper wheel 15 is located above the guide wheels 13; when the test box is in the second state, the part of the cable between the guide wheels 13 is positioned below the guide wheels 13, and after the test box 1 is filled with water from the water inlet 2, the part of the cable is positioned in the water;
the line ball portion includes:
the test box comprises at least one upper shaft 16 and at least one upper wheel 15 which is rotatably connected with the upper shaft 16, wherein the end part of the upper shaft 16 is in sliding connection with a side wall groove 4 arranged on the inner side wall of the test box 1, and the centers of two guide wheels 13 and the centers of the corresponding upper wheels 15 are positioned in the same plane;
a pushing mechanism connected to the upper shaft 16;
in the present embodiment, since the pushing mechanism is connected to the upper shaft 16, the upper shaft 16 is driven to slide up and down along the sidewall groove 4 by the pushing mechanism, so that the cable between the guide wheels 13 is maintained in the first state or maintained in the second state or switched between the first state and the second state.
As an implementation mode, as shown in fig. 1 and 2, the test box comprises a plurality of linkage rods 9, a plurality of upper shafts 16 are arranged, and adjacent upper shafts 16 are connected through the plurality of linkage rods 9, so that the movement of the plurality of upper shafts 16 is consistent through the linkage rods 9 outside the test box 1, and the operation is simpler.
Here, there is provided a structure of a pushing mechanism, as shown in fig. 1 and 2, including:
the push rods 10 are fixedly connected with the side surface of one upper shaft 16, and the push rods 10 penetrate through the upper end surface of the test box 1 and extend to the upper part of the test box 1;
the fixing component is arranged on the upper end surface of the test box 1;
in the embodiment, the push rod 10 is driven by an external force, so that the upper shaft 16 is pushed to move, and when the cable between the guide wheels 13 is in the first state or in the second state, the position of the push rod 10 is fixed by the fixing component, so that the stability of the guide wheels 13 in the test process is ensured, and the cable is prevented from being separated from the guide wheels 13.
As an embodiment, as shown in fig. 1, 2 and 3, the fixing assembly includes:
the fixing block 26 is positioned on one side of the push rod 10, the fixing block 26 is fixed on the upper end surface of the test box 1, and a sliding hole 29 is formed in the fixing block 26;
a limiting rod 27 connected with the sliding hole 29 in a sliding manner, and a spring 30 with one end fixedly connected with the end surface of the limiting rod 27 located in the sliding hole 29, wherein the other end of the spring 30 is fixed at the bottom of the sliding hole 29;
an electromagnet 28 fixed to the bottom of the slide hole 29;
the push rod 10 is provided with an upper limiting hole 11 and a lower limiting hole 12, when one end of the limiting rod 27 is located in the lower limiting hole 12, a cable between the guide wheels 13 is in a first state, and when one end of the limiting rod 27 is located in the upper limiting hole 11, the cable between the guide wheels 13 is in a second state.
In this embodiment, when the cable is not tested, one end of the limiting rod 27 is located in the lower limiting hole 12, after the cable passes through the test box 1, the electromagnet 28 is powered on, so that the limiting rod 27 is contracted into the sliding hole 29 against the elastic force of the spring 30, the push rod 10 is driven by the external force to move downwards, after the limiting rod 27 and the lower limiting hole 12 are dislocated, the electromagnet 28 is powered off, so that one end of the limiting rod 27 is in contact with the side surface of the push rod 10, and after the push rod 10 moves to be right opposite to the upper limiting hole 11, under the action of the spring 30, one end of the limiting rod 27 enters the upper limiting hole 11, so that the position of the push rod 10 is fixed.
As an embodiment, as shown in FIGS. 1 and 2, the test box comprises a connecting rod 8, and the top ends of the push rods 10 are fixed on the side surface of the connecting rod 8, so that the operation is simpler and more convenient by driving the linkage rod 9 and simultaneously driving a plurality of push rods 10 to move outside the test box 1.
As an embodiment, as shown in fig. 1 and 2, the testing box comprises a lower shaft 18 and a lower wheel 17 rotatably connected to the lower shaft 18, the lower shaft 18 corresponds to the upper shaft 16 one by one, the lower shaft 18 is located right below the corresponding upper shaft 16, the lower shaft 18 is connected to the corresponding upper shaft 16 through a connecting piece, one lower wheel 17 is arranged right below each upper wheel 15, and a gap between each upper wheel 15 and the corresponding lower wheel 17 is equal to the outer diameter of a cable, so that the cable will pass through the gap, and the cable is more stable when passing through the testing box 1.
As an embodiment, as shown in fig. 1 and 2, a water guide pipe 5 having one end communicating with the water inlet 2 is included, and the other end of the water guide pipe 5 is close to the bottom of the test chamber 1, so that when water is directly added from the water inlet 2, part of the water is prevented from being splashed out of the water inlet 2.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (8)
1. A cable insulation resistance detection device, comprising:
the testing box is characterized in that a wire inlet and a wire outlet are arranged on the side surface of the testing box, the wire inlet and the wire outlet are close to the upper end surface of the testing box, and the wire inlet is opposite to the corresponding wire outlet;
the guide shaft is fixed on the inner side wall of the test box, and the guide wheels correspond to the wire inlets one by one;
and the wire pressing part is arranged between the two guide shafts, after the cable passes through the wire inlet and the wire outlet, the cable in the test box is in contact with the side surface above the guide wheel, and after the cable at the wire outlet is fixed under the action of external force, the wire pressing part applies vertical downward force to the cable in the test box, so that a part of the cable in the test box moves to a position close to the bottom in the test box.
2. The apparatus of claim 1, wherein the cable between the guide wheels comprises at least a first state and a second state, and in the first state, the cable between the guide wheels is located below the upper wheel and the upper wheel is located above the guide wheels; when the test box is in the second state, part of the cable between the guide wheels is positioned below the guide wheels, and the part of the cable is positioned in water after the test box is filled with water from the water inlet;
the line ball portion includes:
the test box comprises at least one upper shaft and at least one upper wheel which is rotatably connected with the upper shaft, wherein the end part of the upper shaft is in sliding connection with a side wall groove arranged on the inner side wall of the test box, and the centers of the two guide wheels and the center of the corresponding upper wheel are positioned in the same plane;
and the pushing mechanism is connected with the upper shaft and is used for driving the upper shaft to slide up and down along the side wall groove, so that the cable between the guide wheels keeps the first state or the second state or is switched between the first state and the second state.
3. The cable insulation resistance detection device according to claim 2, comprising a plurality of linkage rods, wherein a plurality of upper shafts are arranged, and adjacent upper shafts are connected through a plurality of linkage rods.
4. The apparatus for detecting insulation resistance of a cable according to claim 3, wherein the pushing mechanism comprises:
the push rods are fixedly connected with the side surface of one upper shaft, penetrate through the upper end surface of the test box and extend to the upper part of the test box;
and the fixing component is arranged on the upper end surface of the test box and is used for fixing the position of the push rod when the cable between the guide wheels is in a first state or a second state.
5. The apparatus for detecting insulation resistance of a cable according to claim 4, wherein the fixing member comprises:
the fixing block is positioned on one side of the push rod and fixed on the upper end surface of the test box, and a sliding hole is formed in the fixing block;
the limiting rod is connected with the sliding hole in a sliding mode, one end of the spring is fixedly connected with the end face, located in the sliding hole, of the limiting rod, and the other end of the spring is fixed to the bottom of the sliding hole;
the electromagnet is fixed at the bottom of the sliding hole;
the push rod is provided with an upper limiting hole and a lower limiting hole, when one end of the limiting rod is located in the lower limiting hole, the cable between the guide wheels is in a first state, and when one end of the limiting rod is located in the upper limiting hole, the cable between the guide wheels is in a second state.
6. The device for detecting the insulation resistance of the cable according to any one of claims 4 to 5, comprising a connecting rod, wherein the top ends of the push rods are fixed on the side surface of the connecting rod.
7. The device for detecting the insulation resistance of the cable according to claims 3 to 5, comprising a lower shaft and a lower wheel rotatably connected with the lower shaft, wherein the lower shaft corresponds to the upper shaft one by one, the lower shaft is located right below the corresponding upper shaft, the lower shaft is connected with the corresponding upper shaft through a connecting piece, one lower wheel is arranged right below each upper wheel, and a gap between each upper wheel and the corresponding lower wheel is equal to the outer diameter of the cable.
8. The cable insulation resistance detection device according to claims 1 to 5, comprising a water conduit having one end communicated with the water inlet, wherein the other end of the water conduit is close to the bottom of the test box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110151406.XA CN113063986A (en) | 2021-02-03 | 2021-02-03 | Cable insulation resistance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110151406.XA CN113063986A (en) | 2021-02-03 | 2021-02-03 | Cable insulation resistance detection device |
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| Publication Number | Publication Date |
|---|---|
| CN113063986A true CN113063986A (en) | 2021-07-02 |
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ID=76559180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110151406.XA Pending CN113063986A (en) | 2021-02-03 | 2021-02-03 | Cable insulation resistance detection device |
Country Status (1)
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| CN (1) | CN113063986A (en) |
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| CN209372965U (en) * | 2018-12-07 | 2019-09-10 | 安徽华电线缆股份有限公司 | A kind of insulating resistance of cable test device |
| CN110308039A (en) * | 2019-05-30 | 2019-10-08 | 常州金标轨道交通技术服务有限公司 | Cable for rail transit vehicles all-round property testing method |
| CN210243775U (en) * | 2019-06-22 | 2020-04-03 | 广东日鸿电缆有限公司 | Conveying type cable bath water detection device |
| CN212159938U (en) * | 2020-03-17 | 2020-12-15 | 台州市椒江建设工程质量检测中心有限公司 | Cable insulation resistance testing arrangement |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162257A (en) * | 2007-11-14 | 2008-04-16 | 广东省广州番禺电缆厂有限公司 | Electric wire and cable electric voltage test methods and experiment machine |
| CN101706530A (en) * | 2009-10-30 | 2010-05-12 | 浙江万马电缆股份有限公司 | Cable conductor DC resistance on-line detection device and method thereof |
| CN205789287U (en) * | 2016-05-29 | 2016-12-07 | 江西太平洋电缆集团有限公司 | A kind of cable produces chiller |
| CN206756982U (en) * | 2017-04-28 | 2017-12-15 | 迈特诺（马鞍山）特种电缆有限公司 | A kind of EMUs band shields the high pressure resistant water test device of power "Jumper" cable |
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| CN209372965U (en) * | 2018-12-07 | 2019-09-10 | 安徽华电线缆股份有限公司 | A kind of insulating resistance of cable test device |
| CN110308039A (en) * | 2019-05-30 | 2019-10-08 | 常州金标轨道交通技术服务有限公司 | Cable for rail transit vehicles all-round property testing method |
| CN210243775U (en) * | 2019-06-22 | 2020-04-03 | 广东日鸿电缆有限公司 | Conveying type cable bath water detection device |
| CN212159938U (en) * | 2020-03-17 | 2020-12-15 | 台州市椒江建设工程质量检测中心有限公司 | Cable insulation resistance testing arrangement |
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