CN110635376A - Low-voltage meter collection box zero line row assembling and disassembling device and using method - Google Patents
Low-voltage meter collection box zero line row assembling and disassembling device and using method Download PDFInfo
- Publication number
- CN110635376A CN110635376A CN201910781357.0A CN201910781357A CN110635376A CN 110635376 A CN110635376 A CN 110635376A CN 201910781357 A CN201910781357 A CN 201910781357A CN 110635376 A CN110635376 A CN 110635376A
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- connecting piece
- zero line
- end fixing
- fixing connecting
- threaded hole
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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
-
- 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
Abstract
The invention provides a device for dismounting and mounting a zero line bar of a low-voltage meter collection box and a using method thereof, and relates to the technical field of dismounting and mounting of the zero line bar. The device comprises a first spiral stress applying rod, a second spiral stress applying rod, an upper end fixing connecting piece and a lower end fixing connecting piece, wherein the upper end fixing connecting piece and the lower end fixing connecting piece are arranged in parallel; the first spiral stress application rod and the second spiral stress application rod respectively penetrate through the upper end fixed connecting piece and the lower end fixed connecting piece in sequence, the bottom end of one of the first spiral stress application rod and the second spiral stress application rod is fixedly connected with the lower end fixed connecting piece, and the other one of the first spiral stress application rod and the second spiral stress application rod is rotatably connected with the lower end fixed connecting piece; the upper end is provided with a first inserting hole, the lower end is provided with a second inserting hole, and the second inserting hole is provided with a binding post nut fixing head. The zero line bar is positioned by rotating the first spiral force applying rod, and the zero line terminal nut and the wiring terminal nut are tightly combined to achieve the effect of fixing the nut, so that the zero line terminal nut is not easy to rotate during assembly and disassembly, and the aim of assembling and disassembling the zero line terminal is achieved.
Description
Technical Field
The invention relates to the technical field of zero line strip dismounting, in particular to a low-voltage meter collection box zero line strip dismounting device and a use method thereof.
Background
Zero line terminal row is the important component part of low voltage distribution box, if can't find a fault point with customer's circuit breaker or protector disconnection when meetting the zero line electric leakage, need to demolish the troubleshooting trouble with each user's zero line on the terminal row one by one, and the narrow and small difficult dismantlement in zero line terminal and block terminal box body space also hardly is compressed tightly after the discharge of electric leakage trouble, leaves the potential safety hazard.
When the zero line is checked and tested to be in electric leakage, the zero line is generally remotely measured through an insulating megger, and the zero lines are removed one by one after the zero line row is removed, but the methods have the following problems:
1. the method for telemetering the insulated megger is characterized in that the telemetering of the electric appliances in the home of a client is inaccurate in using state.
2. The method of removing the zero line row one by one after removing the zero line row is adopted, the zero line row with all users needs to be removed, and then the zero lines of all users are removed one by one.
Fig. 1 is a schematic front view of a zero line row. Fig. 2 is a side view of a zero line row. As shown in fig. 1 and 2, the neutral line bar is provided with a plurality of neutral terminals, which include neutral terminal bolts 15 and neutral terminal nuts 14. During the dismounting process of the zero line terminal, the zero line terminal bolt 15 and the zero line terminal nut 14 are easy to rotate simultaneously, and the dismounting of the zero line terminal is not facilitated. Zero line terminal nut 14 is towards the back of block terminal, and because block terminal box space is narrow and small, hardly fix zero line terminal nut 14, has increased the amount of labour, simultaneously, overhauls the completion back, because the space of block terminal is narrow and small, zero line terminal also takes trouble hard when the installation.
In summary, the accuracy of the insulation megger telemetering method is low, and the labor amount of the method for removing the zero lines one by one after removing the zero line bank is large, which can cause potential safety hazards, so that a scheme for more conveniently and safely removing the wiring terminals of the zero line bank is urgently needed to be found.
Disclosure of Invention
In order to solve the problems of complex disassembly of the zero line terminal and potential safety hazard in the prior art, the invention provides the low-voltage meter collecting box zero line row disassembly and assembly device and the use method, which can improve the disassembly efficiency of the zero line terminal and improve the disassembly safety.
In order to achieve the purpose, the invention provides a device for dismounting a zero line bar of a low-voltage meter collecting box, which comprises a first spiral stress applying rod, a second spiral stress applying rod, an upper end fixing connecting piece and a lower end fixing connecting piece, wherein the upper end fixing connecting piece and the lower end fixing connecting piece are arranged in parallel; the first spiral stress application rod and the second spiral stress application rod respectively penetrate through the upper end fixed connecting piece and the lower end fixed connecting piece in sequence, the bottom end of one of the first spiral stress application rod and the second spiral stress application rod is fixedly connected with the lower end fixed connecting piece, and the other one of the first spiral stress application rod and the second spiral stress application rod is rotatably connected with the lower end fixed connecting piece; the upper end fixing connecting piece is provided with a first inserting hole, the lower end fixing connecting piece is provided with a second inserting hole matched with the first inserting hole, the second inserting hole is provided with a wiring terminal nut fixing head, and the wiring terminal nut fixing head is connected with the second inserting hole in a sliding mode.
Furthermore, a first threaded hole is formed in one side of the upper end fixing connecting piece, and a second threaded hole is formed in one side of the lower end fixing connecting piece; the center line of the first threaded hole is superposed with the center line of the second threaded hole and is vertical to the plane where the upper end fixing connecting piece is located; the first spiral stress application rod and the second spiral stress application rod respectively penetrate through the first threaded hole and the second threaded hole in sequence.
Furthermore, a third threaded hole is formed in the other side of the upper end fixing connecting piece, and a fourth threaded hole is formed in the other side of the lower end fixing connecting piece; the center line of the third threaded hole is superposed with the center line of the fourth threaded hole and is vertical to the plane where the upper end fixing connecting piece is located; the first spiral force applying rod and the second spiral force applying rod respectively penetrate through the third threaded hole and the fourth threaded hole in sequence.
Furthermore, the first inserting hole is a long hole and extends along the length direction of the upper end fixing connecting piece.
Furthermore, the second inserting hole is a long hole and extends along the length direction of the lower end fixing connecting piece.
Furthermore, the two sides of the second inserting hole along the length direction are respectively provided with a sliding groove, the two opposite sides of the connecting terminal nut fixing head are respectively provided with a sliding block which is matched with the sliding grooves, and the sliding blocks are connected with the sliding grooves in a sliding mode.
Furthermore, in order to increase the fixed fastening performance of the binding post nut fixing head and the zero line terminal nut, a clamping groove matched with the zero line terminal nut is arranged at one end, facing the upper end, of the binding post nut fixing head, of the fixed connecting piece, and the nut on the zero line terminal is clamped in the clamping groove.
Furthermore, in order to increase the friction between the hand and the first spiral stressing rod and the second spiral stressing rod, the rotation is convenient, and anti-skid handles are arranged at the upper ends of the first spiral stressing rod and the second spiral stressing rod.
The invention has the beneficial effects that:
the device for assembling and disassembling the zero line bar of the low-voltage meter collecting box and the using method thereof provided by the invention have the advantages that the first spiral stress application rod, the second spiral stress application rod, the upper end fixing connecting piece and the lower end fixing connecting piece are arranged, the bottom end of the second spiral stress application rod is fixedly connected with the lower end fixing connecting piece, the second spiral stress application rod plays a role of a guide rail, and the first spiral stress application rod is rotated to drive the upper end fixing connecting piece and the lower end fixing connecting piece to mutually approach or separate. During use, the zero line bar is clamped between the upper end fixing connecting piece and the lower end fixing connecting piece, the zero line bar is positioned by rotating the first spiral force applying rod, the zero line terminal nut is tightly combined with the wiring terminal nut to achieve the effect of fixing the nut, and the zero line terminal nut is not easy to rotate during assembly and disassembly so as to achieve the purpose of assembling and disassembling the zero line terminal.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic front view of a zero line row.
Fig. 2 is a side view of a zero line row.
Fig. 3 is a schematic diagram of the whole structure of the low-voltage meter collecting box zero line assembly and disassembly device in one embodiment of the invention.
FIG. 4 is a schematic diagram of the assembly and disassembly of the zero line bank of the low voltage header box according to one embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a use state of the low-voltage meter collecting box zero line assembly and disassembly device after the low-voltage meter collecting box zero line assembly and the zero line assembly are assembled in one embodiment of the invention.
In the figure, 1, a first spiral force application rod, 2, a second spiral force application rod, 3, an upper end fixing connection piece, 4, a lower end fixing connection piece, 5, a first insertion hole, 6, a second insertion hole, 7, a binding post nut fixing head, 8, a first threaded hole, 9, a second threaded hole, 10, a third threaded hole, 11, a fourth threaded hole, 12, a clamping groove, 13, an anti-slip handle, 14, a zero line terminal nut, 15, a zero line terminal bolt, 16 and a zero line row fixing plate.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following explains key terms appearing in the present invention.
The application provides a low pressure collection table case zero line row dismouting is put, including first spiral application of force pole 1, second spiral application of force pole 2, the fixed even piece of upper end 3 and the fixed even piece of lower extreme 4.
Fig. 3 is a schematic diagram of the whole structure of the low-voltage meter collecting box zero line assembly and disassembly device in one embodiment of the invention. As shown in fig. 3, in the present embodiment, in order to reduce the area occupied by the device, the upper end fixing piece 3 and the lower end fixing piece 4 are both rectangular flat plates and are arranged in parallel to each other in the vertical direction.
And a first threaded hole 8 is formed in the left side of the upper end fixing connecting piece 3, a second threaded hole 9 is formed in the left side of the lower end fixing connecting piece 4, and the first threaded hole 8 and the second threaded hole 9 are identical in aperture.
In the use process, the central line of the first threaded hole 8 is superposed with the central line of the second threaded hole 9 and is vertical to the plane of the upper end fixing connecting piece 3. The first spiral stress application rod 1 sequentially penetrates through a first threaded hole 8 in the upper end fixing connecting piece 3 and a second threaded hole 9 in the lower end fixing connecting piece 4.
And a third threaded hole 10 is formed in the right side of the upper end fixing connecting piece 3, a fourth threaded hole 11 is formed in the right side of the lower end fixing connecting piece 4, and the third threaded hole 10 and the fourth threaded hole 11 are identical in aperture.
In the use process, the central line of the third threaded hole 1 is superposed with the central line of the fourth threaded hole 11 and is vertical to the plane of the upper end fixing connecting piece 3; the second spiral stress application rod 2 sequentially penetrates through a third threaded hole 10 in the upper end fixing connecting piece 3 and a fourth threaded hole 11 in the lower end fixing connecting piece 4.
The bottom end of one of the first spiral stress application rod 1 and the second spiral stress application rod 2 is fixedly connected with the lower end fixed connecting piece 4, and the other one is rotatably connected with the lower end fixed connecting piece 4.
In this embodiment, the bottom and the fixed even 4 fixed connection of lower extreme of second spiral atress pole 2, second spiral atress pole 2 play the effect of guide rail, rotate first spiral atress pole 1 and can drive the fixed even piece 3 of upper end and the fixed even piece 4 two of lower extreme and be close to each other or separate.
In order to increase the rotating force of the first spiral stressing rod 1 and the second spiral stressing rod 2 and facilitate the rotation of the first spiral stressing rod 1 and the second spiral stressing rod 2, the upper ends of the first spiral stressing rod 1 and the second spiral stressing rod 2 are respectively provided with an anti-skid handle 13.
The upper end fixed connecting piece 3 is provided with a first inserting hole 5, and the lower end fixed connecting piece 4 is provided with a second inserting hole 6 matched with the first inserting hole 5. In this embodiment, the first inserting hole 5 and the second inserting hole 6 are both elongated holes, and the first inserting hole 5 extends along the length direction of the upper end fixing connecting piece 3. The second insertion hole 6 extends along the length direction of the lower end fixing piece 4. The first plug hole 5 and the second plug hole 6 are identical in structure and are arranged in parallel when in use, and the zero line terminal on the zero line fixing plate 16 is inserted into the first plug hole 5 and the second plug hole 6.
And a wiring terminal nut fixing head 7 is arranged on the second inserting hole 6, and the wiring terminal nut fixing head 7 is connected with the second inserting hole 6 in a sliding manner. In this embodiment, the two sides of the second inserting hole 6 along the length direction are respectively provided with a sliding groove, the two opposite sides of the terminal nut fixing head 7 are respectively provided with a sliding block adapted to the sliding grooves, and the sliding blocks are slidably connected with the sliding grooves. The setting up of slider and spout has reduced the friction between binding post nut fixed head 7 and the fixed even piece 4 of lower extreme, can prevent simultaneously that binding post nut fixed head 7 from dropping from the fixed even piece 4 of lower extreme, and binding post nut fixed head 7 can follow the fixed second spliced eye 6 mutual slip on even piece 4 of lower extreme to be convenient for fix the zero line terminal nut 14 of different positions.
In order to increase the fixing force between the binding post nut fixing head 7 and the zero line terminal nut 14, the one end of the upper fixed connecting piece 3 on the binding post nut fixing head 7 is provided with a clamping groove 12 matched with the zero line terminal nut, and the zero line terminal nut 14 is clamped in the clamping groove 12, so that the zero line terminal nut 14 is fixed, and the zero line terminal can be easily disassembled by rotating the zero line terminal bolt 15.
Since the neutral terminal nut 14 is generally a hexagonal nut, the cross section of the catching groove 12 is also hexagonal in this embodiment.
The invention also provides a use method of the low-voltage meter collecting box zero line row assembling and disassembling device, which is characterized by comprising the following steps of:
the method comprises the following steps: inserting the lower end fixing connecting piece into the rear part of the back zero line row of the low-voltage distribution box;
step two: inserting the upper end fixing connecting piece into the front part of the front zero line row of the low-voltage distribution box;
step three: sequentially enabling the first spiral stress application rod to penetrate through a first threaded hole in the upper end fixing connecting piece and a second threaded hole in the lower end fixing connecting piece;
step four: sequentially penetrating a second spiral stress application rod through a third threaded hole in the upper end fixing connecting piece and a fourth threaded hole in the lower end fixing connecting piece;
step five: rotating the first spiral stress application rod 1 to enable the upper end fixing connecting piece 3 to be close to the lower end fixing connecting piece 4, and clamping the zero line row fixing plate 16 between the upper end fixing connecting piece 3 and the lower end fixing connecting piece 4;
step six: sliding the binding post nut fixing head along the second inserting hole, clamping the zero line terminal nut to be disassembled into the clamping groove, and fixing the zero line terminal nut by the binding post nut fixing head;
step seven: and the zero line terminal is detached by rotating the zero line terminal bolt.
The working principle of the invention is as follows:
FIG. 4 is a schematic diagram of the assembly and disassembly of the zero line bank of the low voltage header box according to one embodiment of the present invention. Fig. 5 is a schematic structural diagram of a use state of the low-voltage meter collecting box zero line assembly and disassembly device after the low-voltage meter collecting box zero line assembly and the zero line assembly are assembled in one embodiment of the invention. As shown in fig. 4 and 5, in actual operation, the neutral line fixing plate 16 is placed between the upper fixing connecting piece 3 and the lower fixing connecting piece 4, and the neutral terminals on the neutral line fixing plate 16 are inserted into the first insertion hole 5 and the second insertion hole 6. The second spiral force applying rod 2 plays a role of a guide rail, and the upper end fixing connecting piece 3 is close to the lower end fixing connecting piece 4 by rotating the first spiral force applying rod 1, the zero line row fixing plate 16 is clamped between the upper end fixing connecting piece 3 and the lower end fixing connecting piece 4, the zero line terminal nut 14 to be disassembled is clamped in the clamping groove 12, the zero line terminal nut 14 is fixed by the terminal nut fixing head (7), the zero line terminal nut 14 and the zero line terminal bolt 15 cannot rotate simultaneously, the zero line terminal bolt 15 can be rotated, the zero line terminal can be disassembled easily, and the zero line terminal nut 14 is not easy to rotate during assembling and disassembling so as to achieve the purpose of assembling and disassembling the zero line terminal.
In addition, the invention has the advantages of reliable design principle, simple structure, low cost and very wide application prospect.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a low pressure collection table case zero line is arranged dismouting and is put which characterized in that: the device comprises a first spiral stress application rod (1), a second spiral stress application rod (2), an upper end fixing connecting piece (3) and a lower end fixing connecting piece (4), wherein the upper end fixing connecting piece (3) and the lower end fixing connecting piece (4) are arranged in parallel; the first spiral stress application rod (1) and the second spiral stress application rod (2) respectively penetrate through the upper end fixing connecting piece (3) and the lower end fixing connecting piece (4) in sequence, the bottom end of one of the first spiral stress application rod (1) and the second spiral stress application rod (2) is fixedly connected with the lower end fixing connecting piece (4), and the other one is rotatably connected with the lower end fixing connecting piece (4); be equipped with first spliced eye (5) on the fixed even piece of upper end (3), be equipped with on the fixed even piece of lower extreme (4) second spliced eye (6) that suit with first spliced eye (5), be equipped with binding post nut fixed head (7) on second spliced eye (6), binding post nut fixed head (7) and second spliced eye (6) sliding connection.
2. The low voltage header box zero line strip dismounting device of claim 1, characterized in that: a first threaded hole (8) is formed in one side of the upper end fixing connecting piece (3), and a second threaded hole (9) is formed in one side of the lower end fixing connecting piece (4); the center line of the first threaded hole (8) is superposed with the center line of the second threaded hole (9) and is vertical to the plane of the upper end fixing connecting piece (3); the first spiral stress application rod (1) and the second spiral stress application rod (2) respectively penetrate through the first threaded hole (8) and the second threaded hole (9) in sequence.
3. The low pressure collection table case zero line row dismouting of claim 2 characterized in that: a third threaded hole (10) is formed in the other side of the upper end fixing connecting piece (3), and a fourth threaded hole (11) is formed in the other side of the lower end fixing connecting piece (4); the center line of the third threaded hole (1) is superposed with the center line of the fourth threaded hole (11) and is vertical to the plane of the upper end fixing connecting piece (3); the first spiral stress application rod (1) and the second spiral stress application rod (2) respectively penetrate through the third threaded hole (10) and the fourth threaded hole (11) in sequence.
4. The low voltage header box zero line strip dismounting device of claim 1, characterized in that: the first inserting hole (5) is a long hole, and the first inserting hole (5) extends along the length direction of the upper end fixing connecting piece (3).
5. The low voltage header box zero line strip dismounting device of claim 1, characterized in that: the second inserting hole (6) is a long hole, and the second inserting hole (6) extends along the length direction of the lower end fixing connecting piece (4).
6. The low voltage header box zero line strip dismounting device of claim 1, characterized in that: the two sides in the length direction in the second inserting hole (6) are respectively provided with a sliding groove, the two opposite sides on the binding post nut fixing head (7) are respectively provided with a sliding block which is matched with the sliding grooves, and the sliding blocks are connected with the sliding grooves in a sliding mode.
7. The low voltage header box zero line strip dismounting device of claim 1, characterized in that: one end of the connecting piece (3) fixed on the upper end of the binding post nut fixing head (7) is provided with a clamping groove (12) matched with the zero line terminal nut (14), and the zero line terminal nut is clamped in the clamping groove (12).
8. The low voltage header box zero line strip dismounting device of claim 1, characterized in that: the upper ends of the first spiral stressing rod (1) and the second spiral stressing rod (2) are respectively provided with an anti-skidding handle (13).
9. A method of using the low voltage header box zero line attachment apparatus of any one of claims 1-8, comprising the steps of:
the method comprises the following steps: inserting the lower end fixing connecting piece into the rear part of the back zero line row of the low-voltage distribution box;
step two: inserting the upper end fixing connecting piece into the front part of the front zero line row of the low-voltage distribution box;
step three: sequentially enabling the first spiral stress application rod to penetrate through a first threaded hole in the upper end fixing connecting piece and a second threaded hole in the lower end fixing connecting piece;
step four: sequentially penetrating a second spiral stress application rod through a third threaded hole in the upper end fixing connecting piece and a fourth threaded hole in the lower end fixing connecting piece;
step five: rotating the first spiral stress application rod 1 to enable the upper end fixing connecting piece 3 to be close to the lower end fixing connecting piece 4, and clamping the zero line row fixing plate 16 between the upper end fixing connecting piece 3 and the lower end fixing connecting piece 4;
step six: sliding the binding post nut fixing head along the second inserting hole, clamping the zero line terminal nut to be disassembled into the clamping groove, and fixing the zero line terminal nut by the binding post nut fixing head;
step seven: and the zero line terminal is detached by rotating the zero line terminal bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781357.0A CN110635376A (en) | 2019-08-23 | 2019-08-23 | Low-voltage meter collection box zero line row assembling and disassembling device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781357.0A CN110635376A (en) | 2019-08-23 | 2019-08-23 | Low-voltage meter collection box zero line row assembling and disassembling device and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110635376A true CN110635376A (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910781357.0A Pending CN110635376A (en) | 2019-08-23 | 2019-08-23 | Low-voltage meter collection box zero line row assembling and disassembling device and using method |
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| CN (1) | CN110635376A (en) |
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| CN202292493U (en) * | 2011-09-08 | 2012-07-04 | 北京星航机电设备厂 | Shallow-groove screw disassembling and assembling tool |
| CN202357119U (en) * | 2011-10-15 | 2012-08-01 | 中国石油化工股份有限公司 | Bolt demounting device for drilling equipment |
| CN107984418A (en) * | 2017-10-24 | 2018-05-04 | 武汉船用机械有限责任公司 | A kind of frock for being used to dismount nut |
| CN207643047U (en) * | 2017-11-24 | 2018-07-24 | 兰州西固热电有限责任公司 | A kind of flange bolt dismounting auxiliary device |
| CN207736233U (en) * | 2017-12-20 | 2018-08-17 | 浙江交通科技股份有限公司 | A kind of piston unt dismantling device |
| CN207753275U (en) * | 2018-01-16 | 2018-08-21 | 中广核核电运营有限公司 | Terminal block attaching/detaching apparatus |
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2019
- 2019-08-23 CN CN201910781357.0A patent/CN110635376A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202292493U (en) * | 2011-09-08 | 2012-07-04 | 北京星航机电设备厂 | Shallow-groove screw disassembling and assembling tool |
| CN202357119U (en) * | 2011-10-15 | 2012-08-01 | 中国石油化工股份有限公司 | Bolt demounting device for drilling equipment |
| CN107984418A (en) * | 2017-10-24 | 2018-05-04 | 武汉船用机械有限责任公司 | A kind of frock for being used to dismount nut |
| CN207643047U (en) * | 2017-11-24 | 2018-07-24 | 兰州西固热电有限责任公司 | A kind of flange bolt dismounting auxiliary device |
| CN207736233U (en) * | 2017-12-20 | 2018-08-17 | 浙江交通科技股份有限公司 | A kind of piston unt dismantling device |
| CN207753275U (en) * | 2018-01-16 | 2018-08-21 | 中广核核电运营有限公司 | Terminal block attaching/detaching apparatus |
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Application publication date: 20191231 |
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