CN111805483A - Low-voltage switch drawer cable clamp spring replacing device and method - Google Patents
Low-voltage switch drawer cable clamp spring replacing device and method Download PDFInfo
- Publication number
- CN111805483A CN111805483A CN202010650084.9A CN202010650084A CN111805483A CN 111805483 A CN111805483 A CN 111805483A CN 202010650084 A CN202010650084 A CN 202010650084A CN 111805483 A CN111805483 A CN 111805483A
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- China
- Prior art keywords
- clamp spring
- spring
- low
- voltage switch
- clamp
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention belongs to the technical field of electrical maintenance of nuclear power stations, and particularly relates to a device and a method for replacing a cable clamp spring of a low-voltage switch drawer. The invention avoids the increase of workload caused by the modification of the cable primary loop plug connector on the spot by workers, saves cost, reduces the waste of materials, improves working efficiency, and greatly improves the clamping force of the drawer primary loop plug connector after replacement, so that the drawer primary loop plug connector meets the inspection standard; the spring is arranged at the position close to the handle, so that certain resilience force is ensured, and the elastic spring is convenient for workers to use and carry to a field for use.
Description
Technical Field
The invention belongs to the technical field of electrical maintenance of nuclear power stations, and particularly relates to a device and a method for replacing a cable clamp spring of a low-voltage switch drawer.
Background
Most of buses of a certain nuclear power station unit adopt low-voltage switch cabinet drawers with the height of more than 8E (1E is 25mm), and the following problems are found in the process of detecting the clamping force of primary loop plug connectors of the drawers: (1) most connectors of the primary circuit plug connectors of the drawers of 8E and above adopt MNS2.0 models, the qualified standard is 73N, but on-site detection finds that some cable primary circuit plug connectors cannot meet the detection standard due to long-term online use; (2) if the cable with insufficient clamping force of the primary loop plug connector of the switch drawer is replaced, a worker needs to modify a new cable, the length of the new cable is consistent with that of a field cable, and the joint of the new cable needs to be pressed again for treatment, so that the process is complex, time-consuming and labor-consuming. The inner space of the drawer is narrow, so that the operation is inconvenient during replacement; (3) if when the jump ring is changed to the cable that the primary circuit plug connector clamp force of switch drawer is not enough, because of not having specialized tool, can only use the long flat nose pincers to change usually, can't once only put new jump ring installation in place, and can't guarantee to change the clamp force of the back primary circuit plug connector.
Therefore, it is necessary to provide a device and a method for replacing a cable clamp spring of a low-voltage switch drawer, so as to optimize the processing work when the clamping force of a primary loop plug connector of a drawer with a larger volume specification is insufficient, and solve the defects of the prior art.
Disclosure of Invention
The invention aims to provide a device and a method for replacing a clamp spring of a drawer cable of a low-voltage switch, aiming at the defects of the prior art. The device avoids the work load increase caused by the work of transforming the cable on the site of the worker, crimping and the like, and reduces the material waste. The replacing device can improve the working efficiency, reduce the working time, and greatly improve the clamping force of the primary loop plug connector of the drawer after replacement, so that the primary loop plug connector of the drawer meets the inspection standard.
The technical scheme of the invention is as follows:
the utility model provides a low voltage switch drawer cable jump ring changes device, the device includes pincers body, handle and spring, wherein two pincers bodies respectively with two handle fixed connection, spring coupling is between two handles.
The two forceps bodies are fixedly connected with the two handles through the handle supporting block.
The handle and the spring are fixedly connected by a pin.
The clamp body is made of stainless steel.
The surface of the clamp body is provided with a cylindrical bulge.
The clamp body is subjected to polishing anti-slip treatment and insulation treatment.
The tail part of the forceps body is in a ring shape.
The method for replacing the low-voltage switch drawer cable clamp spring replacing device specifically comprises the following steps:
step 1, inserting a clamp body into a clamp spring of a primary loop connector, pressing a handle, enlarging an opening of the clamp spring so as to take the clamp spring down from the primary loop connector, loosening the handle, and taking the clamp spring down from the clamp body;
and 2, installing the new clamp spring on the clamp body, pressing the handle, installing the new clamp spring on the primary loop connector plug, loosening the handle, and installing the clamp spring on the primary loop connector plug under the action of the spring force to complete clamp spring replacement.
The invention has the following beneficial effects:
(1) the tail part of the clamp body is provided with the annular closed limiting part, so that the situation that the clamping spring of the primary loop plug connector is deformed too much to cause the failure of the action of the clamping spring due to overlarge force applied by a worker in the process of using the device, and the clamping force of the new primary loop plug connector cannot meet the inspection requirement can be avoided;
(2) the invention avoids the modification of the cable primary loop plug connector on the spot by workers and the increase of workload caused by compression joint, saves the cost and reduces the waste of materials; the whole clamp body is polished to prevent slipping, so that the phenomenon that a clamp spring and a clamp body clamp head slip when the clamp is used on site is prevented;
(3) the clamp body is also subjected to insulation treatment, so that the electric shock risk of a worker caused by mistakenly touching a charged part is prevented;
(4) the invention can ensure that the new clamp spring is reliably connected with the cable head primary loop plug connector after replacement, thereby not only improving the working efficiency and reducing the working time, but also greatly improving the clamping force of the drawer primary loop plug connector after replacement and ensuring that the drawer primary loop plug connector meets the inspection standard;
(5) the spring is arranged at the position, close to the handle, of the tool, so that certain resilience force is ensured, the tool is more humanized, and the tool is convenient for workers to use;
(6) the two ends in the chuck of the replacing device are respectively provided with the circular protruding parts, so that the clamp spring can play a role in fixing during replacing;
(7) the invention has small volume and is convenient to carry to the field for use.
Drawings
FIG. 1 is a schematic structural view of a low-voltage switch drawer cable clamp spring replacing device provided by the invention;
in the figure: 1-a clamp body; 2-a handle; 3-a spring; 4-a handle support block; 5-cylindrical protrusion.
Detailed Description
The invention is further described below with reference to examples and figures:
as shown in figure 1, the device for replacing the cable clamp spring of the low-voltage switch drawer comprises a clamp body 1, a handle 2, a spring 3, a handle supporting block 4 and a cylindrical protrusion 5.
Two pincers bodies 1 pass through handle supporting shoe 4 and pin fixed connection with two handles 2 respectively, and spring 3 is with pin fixed connection in the middle of two handles 2 to assemble into a whole with jump ring change device.
The clamp body 1 is made of stainless steel.
The surface of the clamp body 1 is provided with a cylindrical protrusion 5, and the cylindrical protrusion 5 is firmly connected with the clamp spring, so that the clamp spring can be rapidly taken down and reinstalled.
The tail part of the forceps body 1 is in a ring shape.
The spring 3 has the function of a reset handle, so that the clamp spring can be conveniently installed or taken down by a worker by using the device for the next time.
The invention also provides a replacing method of the low-voltage switch drawer cable clamp spring replacing device, which comprises the following steps:
step 1, inserting a clamp body 1 into a clamp spring of a primary loop connector, pressing a handle 2, enlarging an opening of the clamp spring, taking the clamp spring down from the primary loop connector, loosening the handle 2, and taking the clamp spring down from the clamp body 1;
and 2, installing the new clamp spring on the clamp body 1, pressing the handle 2, then installing the new clamp spring on the primary loop connector plug, loosening the handle 2 after stable connection, and installing the clamp spring on the primary loop connector plug under the action of the force of the spring 3 to complete clamp spring replacement.
In the working process, the working personnel utilize the device to rapidly take down the old clamp spring of the primary circuit connector clip and then use the device to complete the installation of the new primary circuit connector clip spring.
The tail of the clamp body 1 is annular, so that the phenomenon that the clamp spring of the primary loop connector is deformed too much to cause the failure of the clamp spring due to overlarge force applied by a worker in the process of using the clamp device is avoided, and the clamping force of the new primary loop connector cannot meet the inspection requirement.
The device also avoids the increase of workload caused by the reconstruction of a new cable of the primary loop plug connector on the spot of workers, and reduces the waste of materials.
The whole clamp body 1 is subjected to polishing and anti-skidding treatment, so that the phenomenon of skidding of the clamp spring and the clamp body clamping head 5 when the clamp is used on site is prevented.
The clamp body 1 is also subjected to insulation treatment, so that the risk of electric shock of a worker caused when the clamp body 1 is mistakenly touched to touch a charged part is prevented.
The replacing device can improve the working efficiency, reduce the working time, and greatly improve the clamping force of the primary loop plug connector of the drawer after replacement, so that the primary loop plug connector of the drawer meets the inspection standard.
The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (8)
1. The utility model provides a device is changed to low pressure switch drawer cable jump ring which characterized in that: the device comprises two forceps bodies (1), handles (2) and springs (3), wherein the two forceps bodies (1) are fixedly connected with the two handles (2) respectively, and the springs (3) are connected between the two handles (2).
2. The low-voltage switch drawer cable clamp spring replacing device of claim 1, wherein: the two forceps bodies (1) are fixedly connected with the two handles (2) through the handle supporting block (4).
3. The low-voltage switch drawer cable clamp spring replacing device of claim 2, wherein: the handle (2) and the spring (3) are fixedly connected by a pin.
4. The low-voltage switch drawer cable clamp spring replacing device of claim 3, wherein: the clamp body (1) is made of stainless steel.
5. The low-voltage switch drawer cable clamp spring replacing device of claim 4, wherein: the surface of the clamp body (1) is provided with a cylindrical bulge (5).
6. The low-voltage switch drawer cable clamp spring replacing device of claim 5, wherein: the clamp body (1) is subjected to polishing anti-skid treatment and insulation treatment.
7. The low-voltage switch drawer cable clamp spring replacing device of claim 6, wherein: the tail of the forceps body (1) is in a ring shape.
8. The method for replacing the low-voltage switch drawer cable clamp spring replacing device as claimed in any one of claims 1 to 7, wherein the method specifically comprises the following steps:
step 1, inserting a clamp body (1) into a clamp spring of a primary loop connector, pressing a handle (2), enlarging an opening of the clamp spring so as to take the clamp spring down from the primary loop connector, loosening the handle (2), and taking the clamp spring down from the clamp body (1);
and 2, installing the new clamp spring on the clamp body (1), pressing the handle (2), installing the new clamp spring on the primary loop connector plug, loosening the handle (2), and installing the clamp spring on the primary loop connector plug under the action of the spring (3) force to complete the replacement of the clamp spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010650084.9A CN111805483A (en) | 2020-07-08 | 2020-07-08 | Low-voltage switch drawer cable clamp spring replacing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010650084.9A CN111805483A (en) | 2020-07-08 | 2020-07-08 | Low-voltage switch drawer cable clamp spring replacing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111805483A true CN111805483A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010650084.9A Pending CN111805483A (en) | 2020-07-08 | 2020-07-08 | Low-voltage switch drawer cable clamp spring replacing device and method |
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| CN (1) | CN111805483A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952619A (en) * | 1975-02-27 | 1976-04-27 | Numatics, Incorporated | Tube assembly tool |
| CN203542538U (en) * | 2013-09-26 | 2014-04-16 | 贵州凯星液力传动机械有限公司 | Spring retainer ring assembly and disassembly pincers |
| CN205521006U (en) * | 2016-02-18 | 2016-08-31 | 张永胜 | Auto -lock anticreep type jump ring pincers |
| CN206170001U (en) * | 2016-11-18 | 2017-05-17 | 温州兴机电器有限公司 | Snap ring pliers |
| CN207087749U (en) * | 2017-07-14 | 2018-03-13 | 华晨汽车集团控股有限公司 | V-type presss from both sides fixtures for rapid assembly |
| CN207326883U (en) * | 2017-06-07 | 2018-05-08 | 华晨汽车集团控股有限公司 | A kind of Circlip tongs |
| CN210335825U (en) * | 2019-08-12 | 2020-04-17 | 江苏新宏大集团有限公司 | Special jump ring pincers of link plate |
| CN210389043U (en) * | 2019-07-24 | 2020-04-24 | 中船动力有限公司 | Circlip pliers |
| CN212497577U (en) * | 2020-07-08 | 2021-02-09 | 江苏核电有限公司 | Low-voltage switch drawer cable clamp spring replacing device |
-
2020
- 2020-07-08 CN CN202010650084.9A patent/CN111805483A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952619A (en) * | 1975-02-27 | 1976-04-27 | Numatics, Incorporated | Tube assembly tool |
| CN203542538U (en) * | 2013-09-26 | 2014-04-16 | 贵州凯星液力传动机械有限公司 | Spring retainer ring assembly and disassembly pincers |
| CN205521006U (en) * | 2016-02-18 | 2016-08-31 | 张永胜 | Auto -lock anticreep type jump ring pincers |
| CN206170001U (en) * | 2016-11-18 | 2017-05-17 | 温州兴机电器有限公司 | Snap ring pliers |
| CN207326883U (en) * | 2017-06-07 | 2018-05-08 | 华晨汽车集团控股有限公司 | A kind of Circlip tongs |
| CN207087749U (en) * | 2017-07-14 | 2018-03-13 | 华晨汽车集团控股有限公司 | V-type presss from both sides fixtures for rapid assembly |
| CN210389043U (en) * | 2019-07-24 | 2020-04-24 | 中船动力有限公司 | Circlip pliers |
| CN210335825U (en) * | 2019-08-12 | 2020-04-17 | 江苏新宏大集团有限公司 | Special jump ring pincers of link plate |
| CN212497577U (en) * | 2020-07-08 | 2021-02-09 | 江苏核电有限公司 | Low-voltage switch drawer cable clamp spring replacing device |
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