CN115285805A - Portable direct current system insulation function test tool - Google Patents
Portable direct current system insulation function test tool Download PDFInfo
- Publication number
- CN115285805A CN115285805A CN202210725428.7A CN202210725428A CN115285805A CN 115285805 A CN115285805 A CN 115285805A CN 202210725428 A CN202210725428 A CN 202210725428A CN 115285805 A CN115285805 A CN 115285805A
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- Prior art keywords
- winding
- piece
- portable
- insulation function
- system insulation
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 238000009413 insulation Methods 0.000 title claims abstract description 37
- 238000004804 winding Methods 0.000 claims abstract description 66
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 241000233805 Phoenix Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
- B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a portable direct current system insulation function test tool, which comprises a main body part, a test tool body and a test tool body, wherein the main body part comprises a shell, a sealing cover matched with the shell and a measuring part arranged in the shell; and the wire take-up assembly comprises a wire winding piece arranged on two sides of the measuring piece, a transmission piece arranged on one side of the wire winding piece and a driving piece arranged on the other side of the wire winding piece. According to the invention, through the arrangement of the main body component and the wire take-up component, when the device is used for insulation monitoring and judgment of a direct current system of a transformer substation, the release and recovery of the lead can be convenient and quick, and the resistance value can be conveniently replaced for voltage measurement.
Description
Technical Field
The invention relates to the field of power equipment detection, in particular to a portable direct current system insulation function testing tool.
Background
The direct current system of the transformer substation is the core of the transformer substation, provides stable direct current power supply for transformer substation control, signal, relay protection, automatic devices, emergency lighting and the like, and plays an important role in safe operation of the transformer substation if the direct current system is reliable or not. The station direct current system runs by adopting an ungrounded system, the direct current system is not allowed to be grounded during running, and once grounding occurs, the serious consequences of protection misoperation or refusal can be caused. Therefore, the insulation monitoring function of the direct current system of the transformer substation needs to be regularly tested and judged, the test also needs to be carried out when new equipment is put into operation and accepted, a universal meter is used as a test resistor, even a lead is directly grounded, the protection device is very easy to malfunction by using the modes, and the method has no reference basis and threatens the safe operation of a power grid.
At present, the most common method is to connect a temporary resistance to ground in parallel on a branch to be detected, and the detection method is also feasible, but has the following problems in use: the grounding resistor is manually welded or wound by a lead, and is easy to fall off in the field use process; whether the grounding resistance is successfully put into use can be judged only by adopting voltmeter measurement; the wire arrangement of the grounding resistor is difficult to use and recover every time; when different grounding resistors are used for different direct current systems, the resistors need to be frequently replaced, time and labor are wasted, and mistakes are easily made; a screwdriver is needed to fix two ends of the wire, so that potential safety hazards are increased; after the grounding resistor is used, the grounding resistor is possibly forgotten to be removed due to no obvious mark, and hidden danger is brought to later equipment operation. In addition, when the balance bridge of the direct current system breaks down, the direct current insulation detection function fails and false alarm can be caused, at the moment, a maintainer cannot judge whether the system is really grounded or an insulation monitoring device is in false alarm after arriving at the site, generally, the system can be judged by adopting a temporary balance bridge or an insulation detector, but the requirements are large in size and inconvenient to carry, and therefore the portable balance bridge which is small in size and convenient to carry is also needed to be used as a tool.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the conventional portable dc system insulation function test tools.
Therefore, the problems to be solved by the invention are that the recovery of the grounding conductor is difficult, the resistance replacement and the measurement are complicated when the insulation detection function of the transformer substation direct current system is tested and judged.
In order to solve the technical problems, the invention provides the following technical scheme: a portable direct current system insulation function test tool comprises a main body component, a test component and a test component, wherein the main body component comprises a shell, a sealing cover matched with the shell, and a measuring part arranged in the shell; and the wire take-up assembly comprises a wire winding piece arranged on two sides of the measuring piece, a transmission piece arranged on one side of the wire winding piece and a driving piece arranged on the other side of the wire winding piece.
As a preferable scheme of the portable dc system insulation function testing tool of the present invention, wherein: the measuring part comprises a voltage measuring unit and a variable resistor which are arranged in the middle of the shell, and the voltage measuring unit and the variable resistor are both electrically connected with the lead.
As a preferable scheme of the portable dc system insulation function testing tool of the present invention, wherein: the winding piece comprises winding bins arranged on two sides of the voltage measuring unit, and the winding bins are fixedly connected with the inside of the shell.
As a preferable scheme of the portable tool for testing the insulation function of the direct current system, the tool comprises: the inner wall of the winding bin is also provided with a reciprocating groove, and the top of the winding bin is also provided with a rotating groove.
As a preferable scheme of the portable tool for testing the insulation function of the direct current system, the tool comprises: the winding piece is characterized by further comprising a winding post arranged inside the winding bin and a fluted disc arranged at the top of the winding bin, and the fluted disc is matched with the winding bin in a rotating mode.
As a preferable scheme of the portable tool for testing the insulation function of the direct current system, the tool comprises: the surface of fluted disc still is provided with first through wires hole, its bottom still is provided with the rotary rod, the rotary rod with fluted disc fixed connection.
As a preferable scheme of the portable dc system insulation function testing tool of the present invention, wherein: the wire winding piece further comprises a reciprocating block arranged on the rotary rod, a clamping block and a second wire threading hole are further formed in the reciprocating block, the clamping block is arranged in the reciprocating groove, and the reciprocating block is in sliding fit with the rotary rod.
As a preferable scheme of the portable tool for testing the insulation function of the direct current system, the tool comprises: the driving medium including set up in the support at fluted disc top, and set up in the fixed pulley of support one side.
As a preferable scheme of the portable dc system insulation function testing tool of the present invention, wherein: the transmission part further comprises a first gear arranged at the bottom of the fixed pulley, and the first gear is meshed with the fluted disc.
As a preferable scheme of the portable tool for testing the insulation function of the direct current system, the tool comprises: the driving piece comprises a second gear arranged on the other side of the fluted disc and a rotating disc which coaxially rotates with the second gear.
The invention has the beneficial effects that: according to the invention, through the arrangement of the main body component and the wire take-up component, when the device is used for insulation monitoring and judgment of a direct current system of a transformer substation, the release and recovery of the lead can be convenient and quick, and the resistance value can be conveniently replaced for voltage measurement.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor. Wherein:
fig. 1 is an overall structural diagram of a portable dc system insulation function test tool.
Fig. 2 is an internal structure view of the portable dc system insulation function test tool.
Fig. 3 is an internal view of a winding member of the portable dc system insulation function testing tool.
Fig. 4 is a matching view of the internal structure of the winding member of the portable dc system insulation function testing tool.
Fig. 5 is a diagram of a reciprocating block of the portable dc system isolation function test tool.
Fig. 6 is a structure diagram of a winding chamber of the portable dc system insulation function testing tool.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures of the present invention are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present invention provides a portable tool for testing an insulation function of a dc system, which includes a main body 100 and a wire take-up assembly 200, wherein the main body 100 can be used for performing measurement and detection on the dc system, and the wire take-up assembly 200 can be used for rapidly releasing and recovering a wire.
Specifically, the body member 100 includes a housing 101, a cover 102 engaged with the housing 101, and a measuring member 103 disposed inside the housing 101. The shell 101 and the cover 102 are made of hard insulating materials, so that the weight of the device is reduced, and the device is convenient to carry. The measuring element 103 is used to measure the voltage by changing the resistance value.
Preferably, the wire take-up assembly 200 includes a winding member 201 disposed on both sides of the measuring member 103, a transmission member 202 disposed on one side of the winding member 201, and a driving member 203 disposed on the other side of the winding member 201. The winding element 201 is primarily used to wind the wire, while the primary function of the drive element 202 is to ensure that the wire does not become jammed during the winding process. The driving member 203 provides a power source for the retracting action.
When using, pull out the wire at device both ends respectively when measuring, need retrieve the wire after the measurement when returning, only need operate driving piece 203 can, driving piece 203 can drive the motion of wire winding piece 201 and retrieve the wire, and at this in-process, driving medium 202 can guarantee to retrieve smoothly.
Example 2
Referring to fig. 2 to 6, a second embodiment of the present invention is based on the previous embodiment.
Specifically, the measuring part 103 includes a voltage measuring unit 103a and a variable resistor 103b disposed in the middle of the housing 101, and both the voltage measuring unit 103a and the variable resistor 103b are electrically connected to the conducting wire. The voltage measuring unit 103a can display the measured voltage value, and the variable resistor 103b can be switched to different resistance value gears, so as to meet different measurement requirements. An indicator light is further arranged above the voltage measuring unit 103a, and the indicator light can be automatically turned on after the device is successfully connected to the system, so that the condition that the grounding is normal is avoided. One end of a wire of the whole device is connected with a wire clamp for connecting a grounding device, and the other end of the wire can be provided with a phoenix terminal for connecting devices such as an air switch.
Preferably, the winding member 201 includes winding compartments 201a disposed at both sides of the voltage measuring unit 103a, and the winding compartments 201a are fixedly connected to the inside of the casing 101. The winding cabin 201a is provided with two winding cabins, and the two winding cabins are symmetrically arranged on two sides of the voltage measuring unit 103 a.
Preferably, the inner wall of the winding chamber 201a is further provided with a reciprocating groove 201a-1, and the top thereof is further provided with a rotating groove 201a-2. The reciprocating block 201d may reciprocate up and down along the reciprocating groove 201 a-1.
Preferably, the winding element 201 further includes a winding post 201b disposed inside the winding bin 201a, and a toothed disc 201c disposed on the top of the winding bin 201a, and the toothed disc 201c is rotatably engaged with the winding bin 201 a. The winding post 201b is used for winding and winding the wire, a part below the fluted disc 201c is arranged in the rotating groove 201a-2, and the fluted disc 201c can rotate above the winding bin 201 a.
Preferably, the surface of the toothed disc 201c is further provided with a first threading hole 201c-1, the bottom thereof is further provided with a rotating rod 201c-2, and the rotating rod 201c-2 is fixedly connected with the toothed disc 201 c. The rotating rod 201c-2 rotates with the toothed disc 201c, i.e. when the toothed disc 201c rotates, the rotating rod 201c-2 rotates around the winding post 201 b.
Preferably, the winding element 201 further comprises a reciprocating block 201d disposed on the rotating rod 201c-2, the reciprocating block 201d is further provided with a clamping block 201d-1 and a second threading hole 201d-2, the clamping block 201d-1 is disposed in the reciprocating groove 201a-1, and the reciprocating block 201d is in sliding fit with the rotating rod 201 c-2. When the rotating rod 201c-2 rotates around the winding post 201b, the reciprocating block 201d reciprocates up and down along the rotating rod 201c-2 due to the existence of the reciprocating groove 201 a-1.
Preferably, the transmission member 202 includes a bracket 202a disposed on the top of the toothed disc 201c, and a fixed pulley 202b disposed on one side of the bracket 202 a. The fixed pulleys 202b are provided in two, and the wire passes through the middle.
Further, the transmission member 202 further includes a first gear 202c disposed at the bottom of the fixed pulley 202b, and the first gear 202c is engaged with the toothed disc 201 c. The first gear 202c is fixedly connected to one of the fixed pulleys 202b, and when the wire is pulled to rotate the fixed pulley 202b, the first gear 202c rotates along with the wire.
Further, the driving member 203 includes a second gear 203a disposed on the other side of the toothed disc 201c, and a rotating disc 203b rotating coaxially with the second gear 203 a. Rotating disc 203b causes second gear 203a to rotate toothed disc 201 c.
When the cable is used, the conducting wire is directly pulled outwards by hand during measurement, at this time, the fixed pulley 202b rotates to drive the first gear 202c to rotate, and the first gear 202c drives the fluted disc 201c to rotate. When the toothed disc 201c carries the rotating rod 201c-2 to rotate around the winding post 201b, the reciprocating block 201d thereon reciprocates up and down while rotating. The reciprocating block 201d thus slowly releases the wire wound around the winding post 201b without being jammed.
When the wire is to be recovered after the work is finished, the rotating disc 203b only needs to be rotated by hands to drive the second gear 203a to rotate, the second gear 203a drives the fluted disc 201c to rotate, at the moment, the rotating rod 201c-2 reversely rotates around the winding post 201b to gradually wind the wire on the winding post 201b, and the reciprocating block 201d still can perform vertical reciprocating motion while winding, so that the uniformity and the orderliness of the winding of the wire can be ensured, and the winding is prevented from being at the same place.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a portable direct current system insulating function test instrument which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the body component (100) comprises a shell (101), a cover (102) matched with the shell (101), and a measuring piece (103) arranged inside the shell (101); and (c) a second step of,
receive line subassembly (200), including set up in wire winding piece (201) of measuring piece (103) both sides, set up in driving medium (202) of wire winding piece (201) one side, and set up in driving piece (203) of wire winding piece (201) opposite side.
2. The portable dc system insulation function testing tool of claim 1, wherein: the measuring piece (103) comprises a voltage measuring unit (103 a) and a variable resistor (103 b) which are arranged in the middle of the shell (101), and the voltage measuring unit (103 a) and the variable resistor (103 b) are both electrically connected with a lead.
3. The portable dc system insulation function testing tool of claim 2, wherein: the winding piece (201) comprises winding bins (201 a) arranged on two sides of the voltage measuring unit (103 a), and the winding bins (201 a) are fixedly connected with the inside of the shell (101).
4. The portable dc system insulation function testing tool of claim 3, wherein: the inner wall of the winding bin (201 a) is also provided with a reciprocating groove (201 a-1), and the top of the winding bin is also provided with a rotating groove (201 a-2).
5. The portable dc system insulation function testing tool of claim 4, wherein: the winding piece (201) further comprises a winding post (201 b) arranged inside the winding bin (201 a) and a fluted disc (201 c) arranged at the top of the winding bin (201 a), and the fluted disc (201 c) is in running fit with the winding bin (201 a).
6. The portable dc system insulation function testing tool of claim 5, wherein: the surface of the fluted disc (201 c) is further provided with a first threading hole (201 c-1), the bottom of the fluted disc is further provided with a rotating rod (201 c-2), and the rotating rod (201 c-2) is fixedly connected with the fluted disc (201 c).
7. The portable dc system insulation function testing tool of claim 6, wherein: the wire winding piece (201) further comprises a reciprocating block (201 d) arranged on the rotating rod (201 c-2), a clamping block (201 d-1) and a second wire threading hole (201 d-2) are further arranged on the reciprocating block (201 d), the clamping block (201 d-1) is arranged in the reciprocating groove (201 a-1), and the reciprocating block (201 d) is in sliding fit with the rotating rod (201 c-2).
8. The portable direct current system insulation function test tool of any one of claims 5, 6 or 7, wherein: the transmission piece (202) comprises a bracket (202 a) arranged at the top of the fluted disc (201 c), and a fixed pulley (202 b) arranged on one side of the bracket (202 a).
9. The portable dc system insulation function testing tool of claim 8, wherein: the transmission piece (202) further comprises a first gear (202 c) arranged at the bottom of the fixed pulley (202 b), and the first gear (202 c) is meshed with the fluted disc (201 c).
10. The portable dc system insulation function testing tool of claim 9, wherein: the driving piece (203) comprises a second gear (203 a) arranged on the other side of the fluted disc (201 c) and a rotating disc (203 b) which rotates coaxially with the second gear (203 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210725428.7A CN115285805A (en) | 2022-06-23 | 2022-06-23 | Portable direct current system insulation function test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210725428.7A CN115285805A (en) | 2022-06-23 | 2022-06-23 | Portable direct current system insulation function test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115285805A true CN115285805A (en) | 2022-11-04 |
Family
ID=83821226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210725428.7A Pending CN115285805A (en) | 2022-06-23 | 2022-06-23 | Portable direct current system insulation function test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115285805A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05254737A (en) * | 1992-03-17 | 1993-10-05 | Ohbayashi Corp | Winding-rewinding device for linear body |
| JPH0958934A (en) * | 1995-08-30 | 1997-03-04 | Tokai Rika Hanbai Kk | Wire winding device for loading platform, and loading platform |
| JPH09315695A (en) * | 1996-05-31 | 1997-12-09 | Kioritz Corp | Hose feeding/winding apparatus |
| US20040129820A1 (en) * | 2003-01-06 | 2004-07-08 | Sheng Hsin Liao | Wire-winding box structure with increased use area |
| CN111017656A (en) * | 2019-12-31 | 2020-04-17 | 苏州国科盈睿医疗科技有限公司 | Phototherapy instrument winder |
| CN111056386A (en) * | 2019-11-25 | 2020-04-24 | 孙甜 | Electronic information transmitting antenna with uniform winding function |
| CN210418800U (en) * | 2019-07-05 | 2020-04-28 | 安徽龙和电力集团有限公司 | Cable winding and unwinding devices for electric power test |
| CN213302362U (en) * | 2020-06-09 | 2021-05-28 | 武汉绿能德精测科技有限公司 | Insulation resistance tester convenient to receive line |
| CN112978517A (en) * | 2021-01-29 | 2021-06-18 | 中国地质调查局西安地质调查中心(西北地质科技创新中心) | Automatic pay-off and take-up device for geophysical exploration |
-
2022
- 2022-06-23 CN CN202210725428.7A patent/CN115285805A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05254737A (en) * | 1992-03-17 | 1993-10-05 | Ohbayashi Corp | Winding-rewinding device for linear body |
| JPH0958934A (en) * | 1995-08-30 | 1997-03-04 | Tokai Rika Hanbai Kk | Wire winding device for loading platform, and loading platform |
| JPH09315695A (en) * | 1996-05-31 | 1997-12-09 | Kioritz Corp | Hose feeding/winding apparatus |
| US20040129820A1 (en) * | 2003-01-06 | 2004-07-08 | Sheng Hsin Liao | Wire-winding box structure with increased use area |
| CN210418800U (en) * | 2019-07-05 | 2020-04-28 | 安徽龙和电力集团有限公司 | Cable winding and unwinding devices for electric power test |
| CN111056386A (en) * | 2019-11-25 | 2020-04-24 | 孙甜 | Electronic information transmitting antenna with uniform winding function |
| CN111017656A (en) * | 2019-12-31 | 2020-04-17 | 苏州国科盈睿医疗科技有限公司 | Phototherapy instrument winder |
| CN213302362U (en) * | 2020-06-09 | 2021-05-28 | 武汉绿能德精测科技有限公司 | Insulation resistance tester convenient to receive line |
| CN112978517A (en) * | 2021-01-29 | 2021-06-18 | 中国地质调查局西安地质调查中心(西北地质科技创新中心) | Automatic pay-off and take-up device for geophysical exploration |
Non-Patent Citations (2)
| Title |
|---|
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