CN112775890A - Anti-rotation auxiliary device for bolt lock plate - Google Patents
Anti-rotation auxiliary device for bolt lock plate Download PDFInfo
- Publication number
- CN112775890A CN112775890A CN202011290055.2A CN202011290055A CN112775890A CN 112775890 A CN112775890 A CN 112775890A CN 202011290055 A CN202011290055 A CN 202011290055A CN 112775890 A CN112775890 A CN 112775890A
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- Prior art keywords
- bolt
- locking
- operating rod
- locking piece
- connecting block
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- 230000009471 action Effects 0.000 claims description 16
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention relates to the technical field of auxiliary maintenance equipment, and provides an anti-rotation auxiliary device for a bolt locking plate. The operation rod is connected with the socket groove of the positioning head portion through inserting on the lower nut, meanwhile, the bolt locking piece is locked by the locking piece of the locking portion, therefore, when the outer hexagon nut is rotated, the locking portion can lock the bolt locking piece to prevent the bolt locking piece from rotating, the operation rod is held to form moment, and the bolt locking piece can be locked by small force. The invention can solve the problem that the prior mode of controlling the edge of the locking piece through external force to prevent the locking piece from rotating is not suitable for the locking piece which is subjected to larger friction force.
Description
Technical Field
The invention relates to the technical field of auxiliary maintenance equipment, and particularly provides a bolt locking plate anti-rotation auxiliary device.
Background
In nuclear power plants and in the power or construction industry, flange bolts or valve bolts often need to be disassembled, inspected or replaced. When the connecting flange is bolted or the valve is bolted, a locking sheet is required to be installed to prevent the nut from loosening. In the process of fastening the bolt, when the lower nut is locked and the outer hexagon nut of the bolt is rotated, the locking piece may be rotated due to friction between the outer hexagon nut and the locking piece. And if the locking plate rotates along with the outer hexagon nut, the locking plate can lose the locking function or deform to damage the flange gasket.
In the current maintenance work, in order to avoid the rotation of the lock plate, an external force is manually applied to control the edge of the lock plate, so that the lock plate is prevented from rotating. However, when the friction force between the locking plate and the outer hexagon nut is large, the locking plate is rotated by large force, and the rotation of the locking plate is difficult to control manually. Thus, when a pipe or a valve is connected, the locking plate is often rotated, so that the locking plate needs to be replaced with a new locking plate, and even the locking plate is seriously damaged, so that the flange gasket needs to be replaced again.
Disclosure of Invention
The invention aims to provide an anti-rotation auxiliary device for a bolt lock plate, and aims to solve the problem that the existing mode of controlling the edge of the lock plate through external force to prevent the lock plate from rotating is not suitable for the lock plate subjected to larger friction force.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a bolt locking plate prevents rotatory auxiliary device, includes the location head, connects in the action bars of location head and installs the sticking department on the action bars, has seted up the socket groove on the location head, and the sticking department includes the locking piece, sets up the inserted sheet groove that can supply to insert bolt locking plate on the locking piece.
The invention has the beneficial effects that: according to the anti-rotation auxiliary device for the bolt lock plate, the socket groove of the positioning head is inserted into the lower nut, the positioning head is controlled by the hand to lock the lower nut so as to limit the rotation of the lower nut, and at the moment, the outer hexagon nut of the bolt can be screwed or unscrewed; utilize the locking piece of sticking department in order to restrict the bolt locking plate of outer hexagon nut bottom, insert the bolt locking plate in the picture peg groove of locking piece, thus, when rotatory outer hexagon nut, the rotation trend of bolt locking plate can be blockked by the cell body inner wall in picture peg groove, through handheld action bars so that fix a position the head in the time of locking the nut promptly, the locking piece that the sticking department of installation on the action bars includes can be through picture peg groove locking bolt locking plate simultaneously, handheld action bars is in order to form moment simultaneously, use less power can lock bolt locking plate in order to prevent its rotation, effectual solved when overhauing dismouting ring flange or valve bolt at present through the not good problem of external force independent control bolt locking plate rotation effect of manual application.
In one embodiment, the locking part further includes a connecting block mounted on the operating lever, and a distance adjusting device mounted between the connecting block and the locking block.
Through adopting foretell technical scheme, utilize the locking piece with locking bolt locking plate, still install apart from adjusting device between locking piece and the connecting block simultaneously, through apart from adjusting device with the distance between regulation locking piece and the connecting block to bolt locking plate prevents that rotation auxiliary device can be applicable to the ring flange or the valve cock of multiple size, only needs to correspond the distance between adjustment locking piece and the connecting block through apart from adjusting device, makes bolt locking plate can insert in the inserted sheet groove of locking piece.
In one embodiment, the locking piece extends along one side facing the positioning head and is formed with a projection, and the projection is provided with a sheet inserting groove.
Through adopting foretell technical scheme, utilize the locking piece outwards to extend in order to form the lug, and set up the inserted sheet groove on the lug, when using bolt locking plate anti-rotation auxiliary device, because the nut is generally installed on the ring flange, the ring flange can cause the interference to bolt locking plate anti-rotation auxiliary device and lead to the bolt locking plate can't insert in the inserted sheet groove, consequently, utilize the structure of the lug on the locking piece, make the lug extend towards the direction in location head, the lug extends towards the position of bolt locking plate promptly, thereby bolt locking plate anti-rotation auxiliary device can be applicable to the bolt of many places position on the ring flange.
In one embodiment, the distance adjusting device comprises at least two screws, each screw is respectively arranged through the locking block and the connecting block, and the screws are respectively screwed with adjusting nuts on two opposite sides of the locking block and two opposite sides of the connecting block.
Through adopting foretell technical scheme, utilize the screw rod to wear to locate locking piece and connecting block, thereby the adjustment of position can be carried out on the screw rod to connecting block and locking piece, it has adjusting nut to connect soon respectively in the both sides that the locking piece is relative and the both sides that the connecting block is relative simultaneously through the screw rod, adjusting nut through the relative both sides of rotatory locking piece is in order to adjust the position of locking piece on the screw rod, in order to reach the effect of the distance between adjustment locking piece and the connecting block, or adjusting nut through the relative both sides of rotatory connecting block is in order to adjust the position of connecting block on the screw rod, also can reach the effect of the distance between adjustment locking piece and the connecting block.
In one embodiment, the connecting block is provided with a plug hole, and the operating rod is inserted in and penetrates through the plug hole.
Through adopting foretell technical scheme, through seting up the spliced eye on the connecting block, insert the action bars and establish in the spliced eye, when using bolt locking plate to prevent rotatory auxiliary device, can control the action bars earlier and insert the location head on locating the lower nut, promote the connecting block of sticking department along the action bars to bolt locking plate department again, until bolt locking plate insert in the inserted sheet groove of locking piece, easy operation is convenient.
In one embodiment, the lever is a plate-like structure.
Through adopting foretell technical scheme, be the platelike structure with the operating lever design, the operating lever inserts in the spliced eye of connecting block more stably, has avoided the rotation that the connecting block probably takes place on the operating lever and has leaded to the unstable condition, and the staff of being more convenient for of platelike operating lever holds and exerts oneself simultaneously.
In one embodiment, the operating rod is in interference fit with the insertion hole.
Through adopting foretell technical scheme, through being interference fit of action bars and spliced eye, the connecting block can not slide at will on the action bars to can make the connecting block more stable, the locking effect of sticking department to bolt locking plate is better.
In one embodiment, the positioning head is provided with a plug-in slot, and one end of the operating rod is inserted into the plug-in slot.
Through adopting foretell technical scheme, the inserting groove that utilizes the location head to set up, and insert the action bars in the inserting groove with connecting, thereby the action bars is detachable with being connected of location head, operating personnel can change the location head that corresponds socket groove size according to the size of a dimension of target, the action bars also can be changed into the action bars that corresponds length simultaneously, thereby the effectual suitability that promotes the bolt and prevent rotatory locking plate auxiliary device, locking bolt locking plate operation when can overhauing the change to the ring flange of multiple size of a dimension or valve bolt.
In one embodiment, the bolt locking plate rotation-preventing auxiliary device further comprises a connecting piece, a through fixing hole is formed in the groove body of the insertion groove, a connecting hole is formed in the operating rod matched with the fixing hole, and the connecting piece is inserted into and penetrates through the fixing hole and the connecting hole.
By adopting the technical scheme, the connecting piece is inserted and penetrates through the fixing hole and the connecting hole, so that the connecting structure of the operating rod inserted into the positioning head is more stable.
In one embodiment, the operating rod is provided with an anti-slip sleeve, and the anti-slip sleeve is sleeved at one end of the operating rod far away from the positioning head.
Through adopting foretell technical scheme, utilize to establish anti-skidding cover at the operating rod one pot head of keeping away from in location head, when using the rotatory auxiliary device of bolt locking plate, anti-skidding cover on operating rod can be handed to operating personnel to make handheld operating rod more stable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a bolt lock plate rotation prevention auxiliary device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is a cross-sectional view of a positioning head provided by an embodiment of the present invention;
fig. 5 is a schematic structural view of a bolt locking plate according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In nuclear power plants and in the power or construction industry, flange bolts or valve bolts often need to be disassembled, inspected or replaced. Taking the flange bolt as an example, the flange bolt generally includes a large flange and a bolt passing through the flange, wherein the bolt is screwed with a lower nut on the other side of the flange opposite to the outer hexagon nut of the bolt, and a bolt locking plate 40 is required between the outer hexagon nut of the bolt and the flange to prevent the bolt from loosening. When overhauing, need carry out the rotating with the dismouting maintenance to the bolt. For example, when the outer hexagon nut of the bolt is overhauled and tightened, a wrench is generally used to control the locking lower nut to prevent the rotation of the outer hexagon nut, and then another wrench is used to rotate the outer hexagon nut, so that the bolt rotates relative to the lower nut to tighten the bolt. However, when the outer hexagon nut of the bolt is screwed, the bolt locking piece 40 is often rotated along with the bolt due to friction, so that the bolt locking piece 40 loses the locking function or deforms to damage the flange gasket. At present, when in maintenance, the edge of the bolt locking piece 40 can only be manually controlled to block the rotation of the bolt locking piece, but when the friction force applied to the bolt locking piece 40 is large, the rotation trend of the bolt locking piece 40 cannot be manually limited.
Referring to fig. 1 to 4, in order to solve the above problem, the present invention provides an anti-rotation auxiliary device for a bolt locking plate, which includes a positioning head 10, an operating rod 20 connected to the positioning head 10, and a locking portion 30 installed on the operating rod 20, wherein the positioning head 10 is provided with a socket groove 101, the locking portion 30 includes a locking piece 31, and the locking piece 31 is provided with a locking piece groove 311 for inserting the bolt locking plate 40.
In use, the socket groove 101 of the positioning head 10 is inserted into the lower nut by holding the operating rod 20, so that the lower nut is clamped in the socket groove 101 to limit rotation. Then, the bolt locking piece 40 is inserted into the insert groove 311 of the locking piece 31 of the locking portion 30, so that the locking piece 31 locks the bolt locking piece 40 while the positioning head 10 locks the lower nut. When the maintenance and the disassembly are started, the operating rod 20 is held by hand to keep still, and then the wrench is used for rotating the outer hexagon nut of the bolt so as to tighten or loosen the bolt, so that the bolt and the lower nut rotate relatively. At this time, the lower nut is not rotated by the restriction of the socket groove 101 of the positioning head 10, and the bolt locking piece 40 is also restricted by the groove body of the insert groove 311 by being inserted into the insert groove 311, thereby preventing the bolt locking piece 40 from being rotated.
According to the invention, the bolt locking plate 40 at the bottom of the outer hexagon nut is limited by the locking block 31 of the locking part 30, and the bolt locking plate 40 is inserted into the inserting groove 311 of the locking block 31, so that when the outer hexagon nut is rotated, the rotation trend of the bolt locking plate 40 can be blocked by the inner wall of the groove body of the inserting groove 311, namely, when the positioning head part 10 locks the lower nut by holding the operating rod 20 by hand, the locking block 31 of the locking part 30 arranged on the operating rod 20 can lock the bolt locking plate 40 through the inserting groove 311 at the same time, and the operating rod 20 is held by hand to form moment, so that the bolt locking plate 40 can be locked by using smaller force to prevent the bolt locking plate 40 from rotating, and the problem that the rotation effect of the bolt locking plate 40 is not good by manually applied external force during overhauling, dismounting and mounting and.
Referring to fig. 1 to 5, in one embodiment, the locking portion 30 further includes a connecting block 32 and a distance adjusting device 33 installed between the connecting block 32 and the locking block 31, and the connecting block 32 is installed on the operating rod 20. Utilize the locking piece 31 with locking bolt locking plate 40, still install apart from adjusting device 33 between locking piece 31 and the connecting block 32 simultaneously, through apart from adjusting device 33 with the distance of adjusting between locking piece 31 and the connecting block 32 to the rotatory auxiliary device of bolt locking plate is prevented can be applicable to the ring flange or the valve bolt of multiple size, only needs to correspond the distance between adjustment locking piece 31 and the connecting block 32 through apart from adjusting device 33 for bolt locking plate 40 can insert in the inserted sheet groove 311 of locking piece 31.
Referring to fig. 1 and 3, in one embodiment, the locking block 31 extends along a side facing the positioning head 10 and forms a protrusion 310, and the protrusion 310 is provided with a tab slot 311. When the bolt locking plate anti-rotation auxiliary device is used, since the nut is generally installed on the flange, the flange may interfere with the bolt locking plate anti-rotation auxiliary device and cause the bolt locking plate 40 to be unable to be inserted into the tab slot 311, therefore, by using the structure of the tab 310 on the locking block 31, the tab 310 extends towards the direction of the positioning head 10, that is, the tab 310 extends towards the position of the bolt locking plate 40, so that the bolt locking plate anti-rotation auxiliary device can be applied to bolts at multiple positions on the flange.
Referring to fig. 3, in an embodiment, the distance adjusting device 33 includes at least two screws 331, each screw 331 respectively penetrates through the locking block 31 and the connecting block 32, and each screw 331 is respectively screwed with an adjusting nut 332 at two opposite sides of the locking block 31 and two opposite sides of the connecting block 32. The screw 331 penetrates through the locking block 31 and the connecting block 32, so that the positions of the connecting block 32 and the locking block 31 can be adjusted on the screw 331, meanwhile, the adjusting nuts 332 are respectively screwed on two opposite sides of the locking block 31 and two opposite sides of the connecting block 32 through the screw 331, the position of the locking block 31 on the screw 331 is adjusted by rotating the adjusting nuts 332 on the two opposite sides of the locking block 31, and therefore the effect of adjusting the distance between the locking block 31 and the connecting block 32 is achieved, or the position of the connecting block 32 on the screw 331 is adjusted by rotating the adjusting nuts 332 on the two opposite sides of the connecting block 32, and the effect of adjusting the distance between the locking block 31 and the connecting block 32 can also be achieved. In this embodiment, two screws 331 are adopted, and the distance between the locking block 31 and the connecting block 32 is adjusted by adjusting the adjusting nuts 332 on the two screws 331 respectively.
Referring to fig. 2, 3 and 5, in an embodiment, the connection block 32 is provided with an insertion hole 321, and the operation rod 20 is inserted into and passes through the insertion hole 321. Through set up spliced eye 321 on connecting block 32, insert operating rod 20 in spliced eye 321, when using the bolt locking piece anti-rotation auxiliary device, can control operating rod 20 earlier and insert locating head portion 10 on locating the lower nut, promote connecting block 32 of sticking department 30 along operating rod 20 to bolt locking piece 40 department again, until bolt locking piece 40 inserts in the inserted piece groove 311 of locking piece 31, easy operation is convenient.
Referring to fig. 1, in one embodiment, the operating rod 20 has a plate-like structure. The operating rod 20 is designed to be of a plate-shaped structure, the operating rod 20 is more stably inserted into the insertion hole 321 of the connecting block 32, the unstable situation caused by the rotation of the connecting block 32 on the operating rod 20 is avoided, and meanwhile, the plate-shaped operating rod 20 is more convenient for a worker to hold and exert force.
Referring to fig. 1 to 5, in particular, the operation rod 20 is in interference fit with the insertion hole 321. Through being interference fit of operating rod 20 and jack 321, connecting block 32 can not slide on operating rod 20 at will to can make connecting block 32 more stable, the locking effect of sticking department 30 to bolt locking plate 40 is better.
Referring to fig. 1 and 4, in an embodiment, the positioning head 10 is formed with a plug-in slot 102, and one end of the operating rod 20 is inserted into the plug-in slot 102. Utilize the inserting groove 102 that location head 10 was seted up, and insert operating rod 20 in inserting groove 102 with connecting, thereby operating rod 20 is detachable with being connected of location head 10, operating personnel can change the location head 10 that corresponds socket groove 101 size according to the size of a dimension of target, operating rod 20 also can be changed into the operating rod 20 that corresponds length simultaneously, thereby the effectual suitability that promotes bolt locking plate and prevent rotatory auxiliary device, locking bolt locking plate 40 when can overhaul the change to the ring flange of multiple size of a dimension or valve bolt is operated.
Referring to fig. 1 and 2, the anti-rotation auxiliary device for a bolt locking plate further includes a connecting member 50, a through fixing hole 103 is formed on a body of the inserting groove 102, the operating rod 20 is provided with a connecting hole by matching with the fixing hole 103, and the connecting member 50 is inserted into and penetrates through the fixing hole 103 and the connecting hole. The connection structure of the operation rod 20 inserted into the positioning head 10 is more stable by inserting the connection member 50 through the fixing hole 103 and the connection hole. The connecting member 50 may be a connecting pin, a connecting screw rod, or the like, and in this embodiment, the connecting screw rod is used, and the connecting screw rod passes through the fixing hole 103 and the connecting hole, and the connecting screw rod is screwed with a connecting nut on two opposite sides of the connecting screw rod extending out of the positioning head 10 to lock, so as to connect the positioning head 10 and the operating rod 20.
In one embodiment, the operating rod 20 has an anti-slip sleeve, which is sleeved on an end of the operating rod 20 away from the positioning head 10. By sleeving the anti-slip sleeve on the end of the operating rod 20 far away from the positioning head 10, when the bolt locking piece anti-rotation auxiliary device is used, an operator can hold the anti-slip sleeve on the operating rod 20, so that the operating rod 20 is held more stably.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a rotatory auxiliary device is prevented to bolt locking plate which characterized in that: including the location head, connect in the action bars of location head and install in locking portion on the action bars, the socket groove has been seted up on the location head, the locking portion includes the locking piece, set up the inserted sheet groove that can supply to insert bolt locking plate on the locking piece.
2. The bolt tab anti-rotation aid of claim 1, wherein: the locking part further comprises a connecting block and a distance adjusting device arranged between the connecting block and the locking block, and the connecting block is arranged on the operating rod.
3. The bolt tab anti-rotation aid of claim 2, wherein: the locking block extends along one side facing the positioning head part and forms a convex block, and the convex block is provided with the inserting piece groove.
4. The bolt tab anti-rotation aid of claim 2, wherein: the distance adjusting device comprises at least two screw rods, each screw rod penetrates through the locking block and the connecting block respectively, and adjusting nuts are screwed on the two opposite sides of the locking block and the two opposite sides of the connecting block respectively.
5. The bolt tab anti-rotation aid of claim 2, wherein: the connecting block is provided with an inserting hole, and the operating rod is inserted into and penetrates through the inserting hole.
6. The bolt tab anti-rotation aid of claim 5, wherein: the operating rod is of a plate-shaped structure.
7. The bolt tab anti-rotation aid of claim 6, wherein: the operating rod is in interference fit with the plug hole.
8. The bolt tab anti-rotation aid of any one of claims 1 to 7, wherein: the positioning head is provided with an inserting groove, and one end of the operating rod is inserted into the inserting groove.
9. The bolt tab anti-rotation aid of claim 8, wherein: the bolt locking plate rotation-prevention auxiliary device further comprises a connecting piece, a through fixing hole is formed in the groove body of the inserting groove, the operating rod is matched with the fixing hole to form a connecting hole, and the connecting piece is inserted into the fixing hole and penetrates through the connecting hole.
10. The bolt tab anti-rotation aid of claim 9, wherein: the operating rod is provided with an anti-skidding sleeve, and the anti-skidding sleeve is sleeved at one end of the operating rod, which is far away from the positioning head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011290055.2A CN112775890A (en) | 2020-11-17 | 2020-11-17 | Anti-rotation auxiliary device for bolt lock plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011290055.2A CN112775890A (en) | 2020-11-17 | 2020-11-17 | Anti-rotation auxiliary device for bolt lock plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112775890A true CN112775890A (en) | 2021-05-11 |
Family
ID=75750588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011290055.2A Pending CN112775890A (en) | 2020-11-17 | 2020-11-17 | Anti-rotation auxiliary device for bolt lock plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112775890A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183260A (en) * | 1976-07-14 | 1980-01-15 | Paul-Heinz Wagner Maschinenfabrikation | Tool for rotating nuts, bolts and like fasteners |
| DE2938192A1 (en) * | 1979-09-21 | 1981-04-02 | Kraftwerk Union AG, 4330 Mülheim | Locking tab washers fitting tool - uses pin to prevent rotation of tab washer as nut is tightened |
| CN202266691U (en) * | 2011-10-21 | 2012-06-06 | 高东阀门有限公司 | Forged steel ball valve structure with lock |
| CN107073693A (en) * | 2014-09-25 | 2017-08-18 | 法国国家电力企业 | Key device for retaining nut guard ring |
| CN208262746U (en) * | 2018-04-25 | 2018-12-21 | 陕西重型汽车有限公司 | For installing the spanner auxiliary locator of single hole L-type support |
| CN208323262U (en) * | 2018-06-06 | 2019-01-04 | 福建金风科技有限公司 | Threaded fastener is prevented with rotary device |
| CN111890283A (en) * | 2020-09-04 | 2020-11-06 | 国网河南省电力公司南阳供电公司 | Double-arm combined type hexagonal wrench |
| CN214323194U (en) * | 2020-11-17 | 2021-10-01 | 中核检修有限公司 | Anti-rotation auxiliary device for bolt lock plate |
-
2020
- 2020-11-17 CN CN202011290055.2A patent/CN112775890A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183260A (en) * | 1976-07-14 | 1980-01-15 | Paul-Heinz Wagner Maschinenfabrikation | Tool for rotating nuts, bolts and like fasteners |
| DE2938192A1 (en) * | 1979-09-21 | 1981-04-02 | Kraftwerk Union AG, 4330 Mülheim | Locking tab washers fitting tool - uses pin to prevent rotation of tab washer as nut is tightened |
| CN202266691U (en) * | 2011-10-21 | 2012-06-06 | 高东阀门有限公司 | Forged steel ball valve structure with lock |
| CN107073693A (en) * | 2014-09-25 | 2017-08-18 | 法国国家电力企业 | Key device for retaining nut guard ring |
| CN208262746U (en) * | 2018-04-25 | 2018-12-21 | 陕西重型汽车有限公司 | For installing the spanner auxiliary locator of single hole L-type support |
| CN208323262U (en) * | 2018-06-06 | 2019-01-04 | 福建金风科技有限公司 | Threaded fastener is prevented with rotary device |
| CN111890283A (en) * | 2020-09-04 | 2020-11-06 | 国网河南省电力公司南阳供电公司 | Double-arm combined type hexagonal wrench |
| CN214323194U (en) * | 2020-11-17 | 2021-10-01 | 中核检修有限公司 | Anti-rotation auxiliary device for bolt lock plate |
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