CN114378763A - Flange butt joint fixing device - Google Patents
Flange butt joint fixing device Download PDFInfo
- Publication number
- CN114378763A CN114378763A CN202210060063.0A CN202210060063A CN114378763A CN 114378763 A CN114378763 A CN 114378763A CN 202210060063 A CN202210060063 A CN 202210060063A CN 114378763 A CN114378763 A CN 114378763A
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- handle
- pressing block
- fixed pressing
- hinged
- swing rod
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- 210000001503 joint Anatomy 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000007600 charging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- 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
- B25B27/16—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 abutted flanges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The application provides a ring flange butt joint fixing device, includes: the adjustable clamping device comprises a handle, a swing rod, a first fixed pressing block, a second fixed pressing block, an adjustable clamping block and an adjusting screw rod, wherein the handle comprises a connecting rod, a first handle and a second handle, and a groove is formed in the first handle. One end of the connecting rod is hinged with the second handle, and the other end of the connecting rod is arranged in the groove of the first handle. The first handle is hinged to the swing rod, and the first handle is connected with the first fixed pressing block. The second handle is hinged with the swing rod; the swing rod is hinged with the second fixed pressing block. The first fixed pressing block and the second fixed pressing block are provided with the adjustable clamping blocks; the adjustable clamping block is provided with the adjusting screw rod. The flange plate butt joint fixing device is simple in structure and light in weight, fixing can be completed in 3-5 minutes by single operation, and the problems that installation of oil-gas equipment and detachment of an inflating flange in a high-voltage transformer substation are time-consuming and labor-consuming are solved.
Description
Technical Field
The application relates to the technical field of power equipment maintenance, in particular to a flange plate butt joint fixing device.
Background
With the development of social economy, the requirement on power supply quality is higher and higher, the contradiction between power supply and demand is more and more prominent, and the requirement on the overhaul and maintenance work of power equipment is higher and higher for ensuring the stable operation of power supply work.
In the field of electric power, high-voltage equipment is generally insulated by gas or oil, and oil immersed equipment or totally-enclosed GIS (geographic information system) equipment is butted by using a flange plate. The flange plates are required to be fixedly butted during oil filling of the transformer substation, oil gas tests and charging and discharging of the gas charging equipment, and the key is to safely and quickly complete the butting of the flange plates for improving the working efficiency.
When the GIS equipment is overhauled or maintained, a flange connected with the GIS equipment needs to be dismantled and then connected with a test equipment interface, and because 3 screws are arranged on a common flange for fastening, the test time is short, the tightening of the screws is time-consuming and labor-consuming, two professionals are usually required to operate for more than 30 minutes in the whole operation process, and the efficiency is low.
Disclosure of Invention
The application provides a ring flange butt joint fixing device to there are 3 screws to fasten on solving general flange, test time is nervous, and it wastes time and energy to tighten the screw, and whole operation process needs two professionals to operate more than 30 minutes usually, the problem of inefficiency.
The application provides a ring flange butt joint fixing device, a serial communication port includes: the adjustable clamping device comprises a handle, a swing rod, a first fixed pressing block, a second fixed pressing block, an adjustable clamping block and an adjusting screw rod, wherein the handle comprises a connecting rod, a first handle and a second handle, the first handle is provided with a groove, the second handle is provided with a bending part, and the bending part is arranged at the head part of the second handle; one end of the connecting rod is hinged with the bent part of the second handle, and the other end of the connecting rod is arranged in the groove of the first handle; the first handle head is hinged with the swing rod and connected with the first fixed pressing block; the head part of the second handle is hinged with the swing rod; the swing rod is hinged with the second fixed pressing block; the adjustable clamping block is arranged on the first fixed pressing block; the adjustable clamping block is arranged on the second fixed pressing block; the adjustable clamping block is provided with the adjusting screw rod.
The handle is made of a stamped steel plate, so that the handle is not deformed in the clamping process, and the strength requirement in the using process is met. The head part of the first handle is wider than the tail part, and the wider head part can have larger space to be connected with the first fixed pressing block. The link is movable within a recess of the first handle. The second handle is provided with a bent part, and when the handle is used for clamping, the bent parts of the connecting rod and the second handle, the first handle and the swing rod can form a locking structure. The second handle afterbody is equipped with the radian, makes operating personnel singlehanded grip more convenient.
The adjustable clamping blocks can meet the clamping requirements of flanges with different sizes. The adjusting screw is used for adjusting the clamping and loosening of the adjustable clamping block.
Optionally, the swing rod comprises an L-shaped structure and a U-shaped structure, the L-shaped structure comprises a short side and a long side, the short side and the long side form a preset angle, and the long side is connected with the bottom of the U-shaped structure; the first handle head is hinged with the short edge of the swing rod, and the second handle head is hinged with the joint of the short edge and the long edge of the swing rod; and the U-shaped opening end of the swing rod is hinged with the second fixed pressing block.
The swing rod is designed into an L-shaped structure, the flange interface can be clamped tightly through mechanical power by utilizing the lever principle, and certain clamping force is achieved. The long limit front end of pendulum rod L shape structure designs into U-shaped structure, and the opening of U-shaped structure has two endpoints can make more stable with the articulated of second fixed briquetting, uses the U-shaped structure save material more, can reduce the cost and the weight of product.
Optionally, the handle further comprises a stroke adjusting component and an unlocking wrench, wherein the stroke adjusting component is arranged at the tail part of the first handle; the unlocking wrench is arranged on the second handle and connected with the connecting rod.
The stroke adjusting part is convenient for adjusting the clamping stroke to the optimal size in the using process. After the handles are clamped, the first handle and the second handle are directly broken, so that labor is consumed, and the handles can be loosened more easily by the aid of the unlocking wrench.
Optionally, the stroke adjusting component is a screw.
The stroke adjusting component is a screw rod, and is simple in structure and convenient to use.
Optionally, linear sliding rails are arranged on the first fixed pressing block and the second fixed pressing block, and grooves are formed in the adjustable clamping blocks.
The groove on the adjustable clamping block can enable the adjustable clamping block to move along the linear sliding rails on the first fixed pressing block and the second fixed pressing block, so that the clamping requirements of flanges with different sizes are met. The linear sliding rail is simple in structure and good in stability.
Optionally, a gasket made of a polyurethane material is arranged on the adjustable clamping block.
The adjustable clamping block is provided with a gasket made of polyurethane materials, and the gasket is used for enhancing the sealing effect of the adjustable clamping block.
Optionally, two sections of threads are arranged on the adjusting screw rod, and the directions of the two sections of threads are opposite.
The adjustable clamping block is divided into two parts which are distributed on two sides of the flange, and an adjusting screw is arranged for convenient use. The two sections of threads on the adjusting screw are opposite in direction, so that when the adjusting screw rotates in one direction, the two parts of the adjustable clamping block can be driven to be clamped or loosened towards the center.
The flange plate butt joint fixing device solves the problems that time and labor are wasted in mounting and dismounting of oil-gas equipment in a high-voltage transformer substation and an inflatable flange, is simple in structure and light in weight, can be fixed in 3-5 minutes by single operation, greatly shortens the operation time compared with the traditional operation mode, and greatly improves the work efficiency of power equipment maintenance and repair.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flange plate butting and fixing device according to the present application;
FIG. 2 is a front view of the flange plate docking fixture of the present application;
FIG. 3 is a schematic structural diagram of a swing link according to the present application;
FIG. 4 is a schematic view of an adjusting screw according to the present application;
FIG. 5 is a schematic view of an adjustable clamp block according to the present application;
FIG. 6 is a schematic structural view of a first stationary compact according to the present application;
FIG. 7 is a schematic structural view of a second stationary compact according to the present application;
FIG. 8 is a schematic structural view of the flange plate docking fixture of the present application when it is not clamped;
fig. 9 is a schematic structural view of the flange plate butting and fixing device according to the present application in operation;
illustration of the drawings:
the device comprises a handle 1, a swing rod 2, an adjusting screw rod 3, an adjustable clamping block 4, a first fixed pressing block 5, a second fixed pressing block 6, a first handle 11, a second handle 12, a connecting rod 13, a stroke adjusting part 14 and an unlocking wrench 15.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
The flange fastening device aims to solve the problems that 3 screws are fastened on a common flange, the test time is short, the tightening of the screws is time-consuming and labor-consuming, two professionals are required to operate for more than 30 minutes in the whole operation process, and the efficiency is low.
Referring to fig. 1, a schematic structural diagram of a flange plate butting and fixing device is shown.
The application provides a ring flange butt joint fixing device, as shown in fig. 2, includes: handle 1, pendulum rod 2, first fixed briquetting 5, second fixed briquetting 6, adjustable clamp splice 4 and adjusting screw 3, wherein, handle 1 is made for the punching press steel sheet, can guarantee handle 1 does not take place to warp in the centre gripping process to satisfy the intensity requirement in the use.
The handle 1 includes a link 13, a first handle 11 and a second handle 12, wherein the first handle 11 has a wider head than a tail, and the wider head is for a larger space to connect other components. The first handle 11 is provided with a groove which is opened from the tail part to the head part, so that the weight of the first handle 11 can be reduced. The second handle 12 is provided with a bent portion at a head portion of the second handle 12. The 12 afterbody of second handle is equipped with the radian, and the palm can be laminated to the radian, makes operating personnel singlehanded grip more convenient. One end of the connecting rod 13 is hinged with the bent part of the second handle 12, and the other end is arranged in the groove of the first handle 11. The link 13 is movable within a recess in the first handle 11.
The head of the first handle 11 is hinged with the swing rod 2. The head of the first handle 11 is connected with the first fixed pressing block 5, for example: the integral forming mode or the welding mode can be used; the connection mode of the head of the first handle 11 and the first fixed pressing block 5 can also be a screw mode, and the parts can be conveniently replaced by using the screw mode so as to correspond to different types of flanges.
The head of the second handle 12 is hinged with the swing rod 2. The heads of the first handle 11 and the second handle 12 are hinged with the swing rod 2, so that the force for opening or closing the first handle 11 and the second handle 12 can be transmitted to the swing rod 2 by utilizing the lever principle, and the first fixed pressing block 5 and the second fixed pressing block 6 can clamp the flange interface. The swing rod 2 is hinged to the second fixed pressing block 6, the purpose of the hinge mode is to enable flanges to be in butt joint better, the first fixed pressing block 5 is fixed, and the second fixed pressing block 6 can be adjusted at different angles to meet the requirements of different flanges.
The adjustable clamping blocks 4 are arranged on the first fixed pressing block 5, and the adjustable clamping blocks 4 are arranged on the second fixed pressing block 6. The adjustable clamping blocks 4 are used for clamping flanges, and can meet the clamping requirements of the flanges with different sizes. The adjustable clamping block 4 is provided with the adjusting screw rod 3, and the adjusting screw rod 3 is used for adjusting the clamping or loosening of the adjustable clamping block 4.
In an exemplary embodiment, the swing link 2, as shown in fig. 3, includes an L-shaped structure and a U-shaped structure, the L-shaped structure includes a short side and a long side, the short side and the long side form a predetermined angle, and the long side is connected to the bottom of the U-shaped structure. The head of the first handle 11 is hinged with the short edge of the swing rod 2, and the head of the second handle 12 is hinged with the joint of the short edge and the long edge of the swing rod 2; and the U-shaped opening end of the swing rod 2 is hinged with the second fixed pressing block 6. The swing rod 2 is designed into an L-shaped structure, can clamp the flange interface tightly through mechanical power by utilizing the lever principle, and has certain clamping force. The long limit front end of pendulum rod L shape structure designs into U-shaped structure, and U-shaped structure opening part has two endpoints can make more stable with the articulated of second fixed briquetting 6, uses the U-shaped structure save material more, can reduce the cost and the weight of product.
In an exemplary embodiment, the handle 1 further comprises an adjustment stroke member 14 and an unlocking wrench 15, wherein the adjustment stroke member 14 is arranged at the rear of the first handle 11. The stroke adjusting component 14 is telescopic in the groove of the first handle 11 to control the moving space of the connecting rod 13 in the groove of the first handle 11, so that the clamping stroke can be adjusted to an optimal size conveniently in the using process. The unlocking wrench 15 is provided on the second handle 12, and the unlocking wrench 15 is connected to the link 13. After the handle 1 is clamped, it is hard to directly break the first handle 11 and the second handle 12, and the unlocking wrench 15 can drive the connecting rod 13 to break the locking state, so that the handle 1 can be loosened more easily.
In an exemplary embodiment, the stroke adjusting component 14 is a screw, and the clamping stroke is adjusted by using the screw, so that the structure is simple and the use is convenient. In some embodiments, the adjustable stroke member 14 may also be a multi-linked telescopic link.
In an exemplary embodiment, as shown in fig. 6 and 7, two linear sliding rails are arranged on the first fixed pressing block 5 and the second fixed pressing block 6, and two grooves are arranged on the adjustable clamping block 4. The groove on the adjustable clamping block 4 can enable the adjustable clamping block 4 to move along the linear sliding rails on the first fixed pressing block 5 and the second fixed pressing block 6, so that the clamping requirements of flanges with different sizes are met. The linear sliding rail is simple in structure and good in stability. The first fixed pressing block 5 and the second fixed pressing block 6 are provided with U-shaped notches for passing through flanges to be clamped.
In an exemplary embodiment, as shown in fig. 5, the adjustable clamping block 4 is provided with a gasket made of polyurethane material for enhancing the sealing effect of the adjustable clamping block. The adjustable clamping block 4 is divided into two parts which are distributed on two sides of the flange.
In an exemplary embodiment, as shown in fig. 4, the adjusting screw 3 is provided with two threads, which are opposite in direction. For convenience of use, an adjusting screw 3 is arranged on the adjustable clamping block 4, and the adjusting screw 3 penetrates through two parts of the adjustable clamping block 4. The directions of the two sections of threads on the adjusting screw rod 3 are opposite, so that when the adjusting screw rod 3 rotates in one direction, the two parts of the adjustable clamping block 4 can be driven to be clamped or loosened towards the center.
When the adjustable clamp block is used, the flange plate butt joint fixing device is placed at the position of an interface between an inflatable flange to be fixed and a transformer flange, and then the adjusting screw rod 3 is rotated to enable the adjustable clamp block 4 to move to a proper position along the linear slide rails on the first fixed press block 5 and the second fixed press block 6 according to the size of the flange to be fixed in an operation field, so that the size of the flange to be fixed is adapted. The gas-filled flange can then be quickly docked with the transformer flange by rotating the stroke adjustment member 14 to adjust the clamping stroke to the appropriate position and then pressing the first handle 11 and the second handle 12. After the operation is finished, the inflatable flange and the transformer flange can be quickly loosened by opening the unlocking wrench 15.
As shown in fig. 8, a hinge point of the first handle 11 and the swing link 2 is E, a hinge point of the second handle 12 and the swing link 2 is D, a hinge point of the connecting rod 13 and the second handle 12 is C, an end point of the connecting rod 13 in the groove of the first handle 11 is B, a tail of the first handle is a, and a hinge point of the swing link 2 and the second fixed pressing block 6 is F. The link 13 moves in the direction AB in the recess. The movement of the connecting rod 13 pushes the swing rod 2, the swing rod 2 takes the point E as an original point, and the point D makes a circular motion around the point E so as to drive the point F to perform width adjustment along the axial direction of the flange. When the second handle 12 is in the open position, point F moves outward of the jaws. The B point of the BCDE quadrangle is in a free state in the EB groove, the EB length is variable, and the quadrangle is not self-locked.
As shown in fig. 9, point F moves inward of the jaws when the second handle 12 is squeezed to a locked position. The B point of the BCDE quadrangle is in a tightly-jacked state, the EB parallel line E 'B' of the C point exceeding the D point forms a self-locking stable state towards the inside of the B point, and the flange shaft at the F point can be clamped inwards even if the second handle 12 is not pressed any more.
The flange plate butt joint fixing device solves the problems that time and labor are wasted in mounting and dismounting of oil-gas equipment in a high-voltage transformer substation and an inflatable flange, is simple in structure and light in weight, can be fixed in 3-5 minutes by single operation, greatly shortens the operation time compared with the traditional operation mode, and greatly improves the work efficiency of power equipment maintenance and repair.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (7)
1. A flange butt joint fixing device, its characterized in that includes: a handle (1), a swing rod (2), a first fixed pressing block (5), a second fixed pressing block (6), an adjustable clamping block (4) and an adjusting screw rod (3), wherein,
the handle (1) comprises a connecting rod (13), a first handle (11) and a second handle (12), wherein a groove is formed in the first handle (11); the second handle (12) is provided with a bent part at the head part of the second handle (12);
one end of the connecting rod (13) is hinged with the bent part of the second handle (12), and the other end of the connecting rod is arranged in the groove of the first handle (11);
the head part of the first handle (11) is hinged with the swing rod (2), and the head part of the first handle (11) is connected with the first fixed pressing block (5);
the head part of the second handle (12) is hinged with the swing rod (2);
the swing rod (2) is hinged with the second fixed pressing block (6);
the adjustable clamping block (4) is arranged on the first fixed pressing block (5);
the adjustable clamping block (4) is arranged on the second fixed pressing block (6);
the adjustable clamping block (4) is provided with the adjusting screw rod (3).
2. A flange plate butt joint fixing device according to claim 1, wherein the swing rod (2) comprises an L-shaped structure and a U-shaped structure, the L-shaped structure comprises a short side and a long side, the short side and the long side form a preset angle, and the long side is connected with the bottom of the U-shaped structure;
the head of the first handle (11) is hinged with the short edge of the swing rod (2), and the head of the second handle (12) is hinged with the inflection point of the L-shaped structure of the swing rod (2);
the U-shaped opening end of the swing rod (2) is hinged with the second fixed pressing block (6).
3. A flange plate butt joint fixing device according to claim 1, wherein the handle (1) further comprises a stroke adjusting part (14) and an unlocking wrench (15), wherein the stroke adjusting part (14) is arranged at the tail part of the first handle (11);
the unlocking wrench (15) is arranged on the second handle (12), and the unlocking wrench (15) is connected with the connecting rod (13).
4. A flange plate butting fixing device according to claim 3, wherein the stroke adjusting member (14) is a screw.
5. A flange plate butt joint fixing device according to claim 1, wherein the first fixing pressing block (5) and the second fixing pressing block (6) are provided with linear slide rails, and the adjustable clamping block (4) is provided with a groove.
6. A flange plate butting fixing device according to claim 1, characterized in that the adjustable clamping blocks (4) are provided with gaskets made of polyurethane material.
7. A flange plate butting and fixing device according to claim 1, wherein the adjusting screw rod (3) is provided with two sections of threads, and the thread directions of the two sections of threads are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060063.0A CN114378763A (en) | 2022-01-19 | 2022-01-19 | Flange butt joint fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060063.0A CN114378763A (en) | 2022-01-19 | 2022-01-19 | Flange butt joint fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114378763A true CN114378763A (en) | 2022-04-22 |
Family
ID=81203438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210060063.0A Pending CN114378763A (en) | 2022-01-19 | 2022-01-19 | Flange butt joint fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114378763A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH606824A5 (en) * | 1976-12-29 | 1978-11-15 | Paul Eckli | |
| JP2000094356A (en) * | 1998-09-24 | 2000-04-04 | Hisashi Tone | Extending tool for distance between pipe connected by loose flange |
| CN204748377U (en) * | 2015-05-15 | 2015-11-11 | 国网冀北电力有限公司张家口供电公司 | A anchor clamps for interface flange fastens temporarily |
| JP2016023659A (en) * | 2014-07-16 | 2016-02-08 | 岡山市 | Reinforcement jig of joint part |
| CN106541364A (en) * | 2017-02-07 | 2017-03-29 | 国网山东省电力公司潍坊供电公司 | Pre-determined bit clamping tool is used in ring flange dismounting |
| US20200067254A1 (en) * | 2018-08-22 | 2020-02-27 | The Boeing Company | Electrical connector tool |
| CN210703292U (en) * | 2019-07-26 | 2020-06-09 | 西安陕鼓动力股份有限公司 | Automatic compensation locking clamp |
| CN210818484U (en) * | 2019-08-02 | 2020-06-23 | 中国人民解放军陆军工程大学 | Centering vice for machine tool |
| CN212020489U (en) * | 2020-03-03 | 2020-11-27 | 东莞市沃华精密五金科技有限公司 | Centering vice |
-
2022
- 2022-01-19 CN CN202210060063.0A patent/CN114378763A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH606824A5 (en) * | 1976-12-29 | 1978-11-15 | Paul Eckli | |
| JP2000094356A (en) * | 1998-09-24 | 2000-04-04 | Hisashi Tone | Extending tool for distance between pipe connected by loose flange |
| JP2016023659A (en) * | 2014-07-16 | 2016-02-08 | 岡山市 | Reinforcement jig of joint part |
| CN204748377U (en) * | 2015-05-15 | 2015-11-11 | 国网冀北电力有限公司张家口供电公司 | A anchor clamps for interface flange fastens temporarily |
| CN106541364A (en) * | 2017-02-07 | 2017-03-29 | 国网山东省电力公司潍坊供电公司 | Pre-determined bit clamping tool is used in ring flange dismounting |
| US20200067254A1 (en) * | 2018-08-22 | 2020-02-27 | The Boeing Company | Electrical connector tool |
| CN210703292U (en) * | 2019-07-26 | 2020-06-09 | 西安陕鼓动力股份有限公司 | Automatic compensation locking clamp |
| CN210818484U (en) * | 2019-08-02 | 2020-06-23 | 中国人民解放军陆军工程大学 | Centering vice for machine tool |
| CN212020489U (en) * | 2020-03-03 | 2020-11-27 | 东莞市沃华精密五金科技有限公司 | Centering vice |
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Application publication date: 20220422 |
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| RJ01 | Rejection of invention patent application after publication |