CN109212278B - Portable ground resistance measuring tool - Google Patents
Portable ground resistance measuring tool Download PDFInfo
- Publication number
- CN109212278B CN109212278B CN201811404720.9A CN201811404720A CN109212278B CN 109212278 B CN109212278 B CN 109212278B CN 201811404720 A CN201811404720 A CN 201811404720A CN 109212278 B CN109212278 B CN 109212278B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- driving wheel
- central sleeve
- shaft
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
A portable ground resistance measuring tool. Relates to the field of auxiliary equipment structures of power systems. The portable grounding resistance measuring tool has the advantages of exquisite structure, convenience in operation, good stability and easiness in storage, and can remarkably improve the working efficiency during winding and unwinding after use, so that the grounding resistance measuring time is greatly shortened. The automatic wire winding and paying-off device comprises a fixed barrel, a sealing plate, a driving wheel, a central shaft, a central sleeve, a winding barrel, wires, a combination assembly, a resetting assembly and a switching assembly, wherein a rope outlet is formed in the outer wall of the fixed barrel, the sealing plate is fixedly connected to one side of the fixed barrel, and the driving wheel is hinged to the other side of the fixed barrel.
Description
Technical Field
The invention relates to the field of auxiliary equipment structures of power systems.
Background
At present, in the process of measuring the grounding resistance, one wire is connected with the first wiring pile on the meter and the first grounding rod which is 40 meters away from the grounding body, and the other wire is connected with the second wiring pile on the meter and the second grounding rod which is 20 meters away from the grounding body, so that the wiring in the working process occupies more working time, and the measuring efficiency of the grounding resistance is greatly influenced. Meanwhile, the traditional manual winding and unwinding mode is also very easy to cause the problem of wire winding and knotting, so that the actual working efficiency is further reduced.
Disclosure of Invention
Aiming at the problems, the invention provides a portable grounding resistance measuring tool which has the advantages of exquisite structure, convenient operation, good stability and easy storage, and can obviously improve the working efficiency during the coiling and uncoiling after use, thereby greatly shortening the grounding resistance measuring time.
The technical scheme of the invention is as follows: the automatic rope winding device comprises a fixed barrel, a sealing plate, a driving wheel, a central shaft, a central sleeve, a winding barrel, a wire, a combination assembly, a reset assembly and a switching assembly, wherein a rope outlet is formed in the outer wall of the fixed barrel, the sealing plate is fixedly connected to one side of the fixed barrel, the driving wheel is hinged to the other side of the fixed barrel, a plurality of obliquely downward brackets are fixedly connected to the outer wall of the fixed barrel, guide wheels are hinged to the bottom ends of the brackets, and the bottom edges of all the guide wheels and the bottom edges of the driving wheel are on the same horizontal plane;
the central shaft is in a stepped shaft shape and is divided into a large shaft and a small shaft, the large shaft penetrates through the driving wheel and is hinged with the driving wheel, the central sleeve is sleeved on the small shaft and penetrates through the sealing plate, a fixing plate is fixedly connected to the end face, far away from the large shaft, of the small shaft, the central sleeve is rotatably arranged between the large shaft and the fixing plate, the fixing plate is fixedly connected with the sealing plate, and the winding reel is sleeved on the central sleeve in a sliding manner and synchronously rotates with the central sleeve;
one end of the wire is fixedly connected to the winding drum, a plurality of circles are wound on the winding drum, and the other end of the wire extends out of the fixing drum from the rope outlet hole;
the reset component comprises a plane scroll spring, the plane scroll spring is positioned on one side of the winding drum far away from the driving wheel and sleeved outside the central sleeve, one end of the plane scroll spring is fixedly connected to the inner wall of the fixed drum, and the other end of the plane scroll spring is fixedly connected to the central sleeve;
the combination assembly comprises a friction ring and a pressure spring, the friction ring is fixedly connected to the end face of the winding reel, which faces the driving wheel, and the pressure spring is propped between the driving wheel and the winding reel;
the switching assembly comprises a hinging seat, a screw rod, a nut, a connecting rod and a switching ring, wherein the hinging seat is fixedly connected to the top of the outer wall of the fixed cylinder, the screw rod is hinged in the hinging seat, and the nut is sleeved on the screw rod and is in threaded connection with the screw rod; the switching ring is sleeved on the central sleeve and is propped against the end face of the bobbin, which is opposite to the driving wheel; the fixed cylinder is also provided with a strip-shaped switching hole parallel to the screw rod, and the connecting rod penetrates through the switching hole and is fixedly connected between the nut and the switching ring.
The end face, far away from the small shaft, of the large shaft is fixedly connected with an abutting plate, and the end face, back to the fixed cylinder, of the driving wheel abuts against the abutting plate.
The inner wall of the winding reel is provided with a through groove which is axially arranged along the winding reel, the outer wall of the central sleeve is fixedly connected with a square key which is in sliding connection in the through groove, and the square key is matched with the through groove.
And one end of the screw, which is far away from the hinging seat, is fixedly connected with a hand wheel.
According to the invention, the quick switching between the wire winding state and the wire releasing state can be realized by rotating the screw rod, when the wire is released, an operator pushes the fixed cylinder, and the plane scroll spring is automatically retracted when the wire is released, so that the problems of low working efficiency, easiness in winding and knotting of a wire and the like caused by manual wire releasing and winding in the prior art are effectively solved, and the device has the advantages of exquisite structure, convenience in operation, good stability, high working efficiency, good integrity, easiness in carrying or storage and the like on the whole, and the working efficiency during wire releasing and releasing can be obviously improved after the device is used, so that the measurement time of the grounding resistance is greatly shortened.
Drawings
Figure 1 is a schematic view of the structure of the present case,
figure 2 is a cross-sectional view taken along A-A of figure 1,
FIG. 3 is a reference view of the use state of the present case;
in the figure, 11 is a fixed cylinder, 111 is a bracket, 112 is a guide wheel, 12 is a sealing plate, and 13 is a driving wheel;
21 is a central shaft, 211 is a fixed plate, 212 is an abutting plate, 22 is a central sleeve, 220 is a square key, and 23 is a bobbin;
31 is a friction ring, 32 is a compression spring, 41 is a flat spiral spring;
51 is a hinge seat, 52 is a screw, 53 is a nut, 54 is a connecting rod, 55 is a switching ring, and 56 is a hand wheel.
Detailed Description
The invention is as shown in fig. 1-3, comprising a fixed cylinder 11, a sealing plate 12, a driving wheel 13, a central shaft 21, a central sleeve 22, a winding reel 23, a wire, a combination component, a reset component and a switching component, wherein a rope outlet hole is formed on the outer wall of the fixed cylinder 11, the sealing plate 12 is fixedly connected to one side of the fixed cylinder 11, the driving wheel 13 is hinged to the other side of the fixed cylinder 11, a plurality of downward-inclined brackets 111 are fixedly connected to the outer wall of the fixed cylinder 11, guide wheels 112 are hinged to the bottom ends of the brackets 111, and the bottom edges of all the guide wheels 112 and the bottom edges of the driving wheels 13 are on the same horizontal plane;
the central shaft 21 is in a stepped shaft shape and is divided into a large shaft and a small shaft, the large shaft penetrates through the driving wheel 13 and is hinged with the driving wheel, the central sleeve 22 is sleeved on the small shaft and penetrates through the sealing plate 12, the end face of the small shaft far away from the large shaft is fixedly connected with a fixing plate 211, so that the central sleeve 22 is rotatably arranged between the large shaft and the fixing plate 211, the fixing plate 211 is fixedly connected with the sealing plate 12, and the winding reel 23 is sleeved on the central sleeve 22 in a sliding manner and synchronously rotates with the central sleeve 22; in this way, the fixing barrel, the fixing plate and the central shaft are fixedly connected, and the central sleeve and the driving wheel can rotate relative to the central shaft, wherein the winding barrel and the central sleeve synchronously rotate at any time;
one end of the wire is fixedly connected to the winding drum 23, a plurality of circles are wound on the winding drum 23, and the other end of the wire extends out of the fixed drum 11 from the rope outlet hole;
the reset assembly comprises a plane scroll spring 41, wherein the plane scroll spring 41 is positioned on one side of the winding drum 23 far away from the driving wheel 13 and sleeved outside the central sleeve 22, one end of the plane scroll spring 41 is fixedly connected to the inner wall of the fixed drum 11, and the other end of the plane scroll spring 41 is fixedly connected to the central sleeve 22;
the combination assembly comprises a friction ring 31 and a pressure spring 32, wherein the friction ring 31 is fixedly connected to the end surface of the winding drum 23 facing the driving wheel 13, and the pressure spring 32 is propped between the driving wheel 13 and the winding drum 23;
the switching assembly comprises a hinging seat 51, a screw rod 52, a nut 53, a connecting rod 54 and a switching ring 55, wherein the hinging seat 51 is fixedly connected to the top of the outer wall of the fixed cylinder 11, the screw rod 52 is hinged in the hinging seat 51, and the nut 53 is sleeved on the screw rod 52 and is in threaded connection with the screw rod 52; the switching ring 55 is sleeved with the central sleeve 22 in a hollow mode and abuts against the end face of the winding drum 23, which faces away from the driving wheel 13; the fixed cylinder 11 is also provided with a strip-shaped switching hole parallel to the screw, and the connecting rod 54 penetrates through the switching hole and is fixedly connected between the nut 53 and the switching ring 55. Thus, rotating the screw translates the nut and the shift ring, pushing the bobbin such that the friction ring is closer to or farther from the drive wheel.
Specifically, firstly, when the friction ring is close to and finally attached to the driving wheel, an operator directly pushes the fixed cylinder to enable the driving wheel to rotate under the influence of friction force on the ground and drive the winding cylinder and the central sleeve to rotate, so that the lead is gradually discharged in the moving process; in the process, the driving wheel, the winding reel and the central sleeve synchronously rotate, so that the restoring force generated by the plane scroll spring acts on the driving wheel instead of the lead, thereby effectively protecting the lead and avoiding damage caused by over-tightening.
Secondly, when the friction ring is far away and finally is completely separated from the driving wheel, the restoring force of the plane scroll spring directly acts on the winding drum, and the wire can be gradually retracted after the measurement is finished.
In summary, the scheme can realize the fast switch over between receipts line state, unwrapping wire state through rotating the screw rod, during the unwrapping wire, operating personnel promote fixed section of thick bamboo can, then by plane spiral spring automatic retraction during the receipts line to effectively solved among the prior art because of the manual work receive, the unwrapping wire bring work efficiency low, easily cause wire winding knot scheduling problem, have the advantage such as exquisite structure on the whole, convenient operation, stability is good, work efficiency is high and the wholeness is good, easily carry or accomodate, work efficiency when can showing to promote to receive, unwrapping wire after the use, thereby shorten the measuring time of earth resistance by a wide margin.
An abutting plate 212 is fixedly connected to the end face, far away from the small shaft, of the large shaft, and the end face, facing away from the fixed cylinder 11, of the driving wheel 13 abuts against the abutting plate 212. Therefore, the structure of the driving wheel, the fixed cylinder and the sealing plate is more compact and stable while the rotation motion of the driving wheel relative to the central shaft is not influenced, and the scheme has better structural stability and service life.
The inner wall of the winding reel is provided with a through groove arranged along the axial direction of the winding reel, the outer wall of the central sleeve 22 is fixedly connected with a square key 220 which is connected in the through groove in a sliding way, and the square key is matched with the through groove. Namely, the synchronous rotation structure of the winding reel and the central sleeve is realized.
The end of the screw 52 far away from the hinge seat 51 is fixedly connected with a hand wheel 56. Therefore, the screw rod can be conveniently rotated through the hand wheel, and the quick switching between the wire winding state and the wire unwinding state is realized.
Claims (4)
1. The portable grounding resistance measuring tool is characterized by comprising a fixed barrel, a sealing plate, a driving wheel, a central shaft, a central sleeve, a winding barrel, a wire, a combination component, a reset component and a switching component, wherein a rope outlet hole is formed in the outer wall of the fixed barrel, the sealing plate is fixedly connected to one side of the fixed barrel, the driving wheel is hinged to the other side of the fixed barrel, a plurality of obliquely downward brackets are fixedly connected to the outer wall of the fixed barrel, guide wheels are hinged to the bottom ends of the brackets, and the bottom edges of all the guide wheels and the bottom edges of the driving wheels are on the same horizontal plane;
the central shaft is in a stepped shaft shape and is divided into a large shaft and a small shaft, the large shaft penetrates through the driving wheel and is hinged with the driving wheel, the central sleeve is sleeved on the small shaft and penetrates through the sealing plate, a fixing plate is fixedly connected to the end face, far away from the large shaft, of the small shaft, the central sleeve is rotatably arranged between the large shaft and the fixing plate, the fixing plate is fixedly connected with the sealing plate, and the winding reel is sleeved on the central sleeve in a sliding manner and synchronously rotates with the central sleeve;
one end of the wire is fixedly connected to the winding drum, a plurality of circles are wound on the winding drum, and the other end of the wire extends out of the fixing drum from the rope outlet hole;
the reset component comprises a plane scroll spring, the plane scroll spring is positioned on one side of the winding drum far away from the driving wheel and sleeved outside the central sleeve, one end of the plane scroll spring is fixedly connected to the inner wall of the fixed drum, and the other end of the plane scroll spring is fixedly connected to the central sleeve;
the combination assembly comprises a friction ring and a pressure spring, the friction ring is fixedly connected to the end face of the winding reel, which faces the driving wheel, and the pressure spring is propped between the driving wheel and the winding reel;
the switching assembly comprises a hinging seat, a screw rod, a nut, a connecting rod and a switching ring, wherein the hinging seat is fixedly connected to the top of the outer wall of the fixed cylinder, the screw rod is hinged in the hinging seat, and the nut is sleeved on the screw rod and is in threaded connection with the screw rod; the switching ring is sleeved on the central sleeve and is propped against the end face of the bobbin, which is opposite to the driving wheel; the fixed cylinder is also provided with a strip-shaped switching hole parallel to the screw rod, and the connecting rod penetrates through the switching hole and is fixedly connected between the nut and the switching ring.
2. The portable grounding resistance measuring tool according to claim 1, wherein an abutting plate is fixedly connected to the end face, away from the small shaft, of the large shaft, and the end face, facing away from the fixed cylinder, of the driving wheel abuts against the abutting plate.
3. The portable grounding resistance measuring tool according to claim 1, wherein a through groove is formed in the inner wall of the winding reel along the axial direction of the winding reel, and a square key which is connected in the through groove in a sliding manner is fixedly connected to the outer wall of the central sleeve and is matched with the through groove.
4. The portable ground resistance measuring tool of claim 1, wherein a hand wheel is fixedly connected to an end of the screw remote from the hinge base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811404720.9A CN109212278B (en) | 2018-11-23 | 2018-11-23 | Portable ground resistance measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811404720.9A CN109212278B (en) | 2018-11-23 | 2018-11-23 | Portable ground resistance measuring tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109212278A CN109212278A (en) | 2019-01-15 |
| CN109212278B true CN109212278B (en) | 2023-08-25 |
Family
ID=64994107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811404720.9A Active CN109212278B (en) | 2018-11-23 | 2018-11-23 | Portable ground resistance measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109212278B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058085B (en) * | 2019-05-09 | 2021-02-02 | 南京理工中爆安全科技有限公司 | Ground resistance tester |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB555522A (en) * | 1942-03-25 | 1943-08-26 | Peter Sadler | Improvements in means for taking up slack in trailed flexible leads or cables |
| WO1983001468A1 (en) * | 1981-10-22 | 1983-04-28 | Trimak Equipment Ltd | Apparatus for paying off wire from a bobbin |
| CN1740584A (en) * | 2004-08-27 | 2006-03-01 | 株式会社岛野 | One way clutch for spinning reel |
| CN101885439A (en) * | 2010-06-29 | 2010-11-17 | 中铁十局集团有限公司 | Gantry crane cable reel device |
| CN201990334U (en) * | 2011-03-09 | 2011-09-28 | 重庆市电力公司沙坪坝供电局 | Take-up and pay-off tool |
| CN103274264A (en) * | 2013-06-04 | 2013-09-04 | 台州市双辉机械设备有限公司 | Bidirectional wire arranging device of multi-wire cutting machine and control method of bidirectional wire arranging device |
| CN203486676U (en) * | 2013-10-14 | 2014-03-19 | 国家电网公司 | Rotary type wire winding and unwinding device of remotely measuring ground resistor |
| CN204400356U (en) * | 2015-01-23 | 2015-06-17 | 国网山西省电力公司晋城供电公司 | A kind of pole tower ground resistance testing wire draw off gear |
| CN205210130U (en) * | 2015-10-30 | 2016-05-04 | 国网山东省电力公司淄博供电公司 | Supporting coiling and uncoiling device of ground connection megger |
| CN105858361A (en) * | 2016-04-13 | 2016-08-17 | 国网甘肃省电力公司检修公司 | Portable coiling and uncoiling device |
| CN205687329U (en) * | 2016-06-21 | 2016-11-16 | 国网冀北电力有限公司秦皇岛供电公司 | Grounding resistance measurement auxiliary device |
| CN205709234U (en) * | 2016-04-19 | 2016-11-23 | 重庆市南方阻燃电线电缆有限公司 | Suitching type adaptive winding dish device |
| CN209102772U (en) * | 2018-11-23 | 2019-07-12 | 国网江苏省电力有限公司宝应县供电分公司 | Portable grounding resistance measuring tool |
-
2018
- 2018-11-23 CN CN201811404720.9A patent/CN109212278B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB555522A (en) * | 1942-03-25 | 1943-08-26 | Peter Sadler | Improvements in means for taking up slack in trailed flexible leads or cables |
| WO1983001468A1 (en) * | 1981-10-22 | 1983-04-28 | Trimak Equipment Ltd | Apparatus for paying off wire from a bobbin |
| CN1740584A (en) * | 2004-08-27 | 2006-03-01 | 株式会社岛野 | One way clutch for spinning reel |
| CN101885439A (en) * | 2010-06-29 | 2010-11-17 | 中铁十局集团有限公司 | Gantry crane cable reel device |
| CN201990334U (en) * | 2011-03-09 | 2011-09-28 | 重庆市电力公司沙坪坝供电局 | Take-up and pay-off tool |
| CN103274264A (en) * | 2013-06-04 | 2013-09-04 | 台州市双辉机械设备有限公司 | Bidirectional wire arranging device of multi-wire cutting machine and control method of bidirectional wire arranging device |
| CN203486676U (en) * | 2013-10-14 | 2014-03-19 | 国家电网公司 | Rotary type wire winding and unwinding device of remotely measuring ground resistor |
| CN204400356U (en) * | 2015-01-23 | 2015-06-17 | 国网山西省电力公司晋城供电公司 | A kind of pole tower ground resistance testing wire draw off gear |
| CN205210130U (en) * | 2015-10-30 | 2016-05-04 | 国网山东省电力公司淄博供电公司 | Supporting coiling and uncoiling device of ground connection megger |
| CN105858361A (en) * | 2016-04-13 | 2016-08-17 | 国网甘肃省电力公司检修公司 | Portable coiling and uncoiling device |
| CN205709234U (en) * | 2016-04-19 | 2016-11-23 | 重庆市南方阻燃电线电缆有限公司 | Suitching type adaptive winding dish device |
| CN205687329U (en) * | 2016-06-21 | 2016-11-16 | 国网冀北电力有限公司秦皇岛供电公司 | Grounding resistance measurement auxiliary device |
| CN209102772U (en) * | 2018-11-23 | 2019-07-12 | 国网江苏省电力有限公司宝应县供电分公司 | Portable grounding resistance measuring tool |
Non-Patent Citations (1)
| Title |
|---|
| 接地电阻测量一体化装置;陈宇 等;农村电气化(第06期);49 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109212278A (en) | 2019-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109677995B (en) | Device for changing electric wire into spiral shape | |
| CN109212278B (en) | Portable ground resistance measuring tool | |
| CN213265172U (en) | Mobile measurement pay-off device for construction cost | |
| CN113471727B (en) | Grounding wire device | |
| CN113852009B (en) | Professional quick tensioner bullwheel among power supply station electrical power rush-repair | |
| CN104129689A (en) | Wire wrapping device capable of winding and unwinding wires quickly | |
| CN107381251B (en) | High-voltage grounding wire paying-off device | |
| CN105035883B (en) | Cable drum and crane | |
| CN111731953A (en) | Cable storage and take-up and pay-off device | |
| CN102544937A (en) | Automatic retraction type wire coil | |
| KR20110079926A (en) | Rotation drum fixing equipment with portable wire reel | |
| CN116986415A (en) | Cable winding device for repairing turbine blade | |
| CN210339961U (en) | Pay-off rack for construction site of building construction | |
| CN209102772U (en) | Portable grounding resistance measuring tool | |
| CN219156200U (en) | Quick receiving and releasing device for detection line | |
| CN221124717U (en) | Lightning stroke detection device of hand-held type lightning protection facility | |
| CN210884612U (en) | Movable cable pay-off rack | |
| CN211078050U (en) | Uninterrupted self-rolling type quick winding and unwinding device for grounding wire | |
| CN209097966U (en) | Portable service tool | |
| CN208022529U (en) | A kind of super-pressure tube rolling device | |
| CN102219135B (en) | Device for dismounting bobbin of coil winding machine | |
| CN214298743U (en) | Building engineering measures pay-off | |
| CN107664468B (en) | Simple and convenient many sizes detect instrument | |
| CN113036549B (en) | Portable rifle that charges with automatically, accomodate function | |
| CN220392913U (en) | Automatic collecting and installing device for grounding wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |