CN111271138B - Hole plugging structure and driving tool thereof - Google Patents
Hole plugging structure and driving tool thereof Download PDFInfo
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- CN111271138B CN111271138B CN202010113002.7A CN202010113002A CN111271138B CN 111271138 B CN111271138 B CN 111271138B CN 202010113002 A CN202010113002 A CN 202010113002A CN 111271138 B CN111271138 B CN 111271138B
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- driving
- plugging
- hole
- positioning
- driving shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/04—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
- Hinges (AREA)
Abstract
The application relates to a stifled pore structure includes: the support body is provided with four positioning holes; one end of each driving shaft is a positioning end, and the other end of each driving shaft is a driving end; the positioning end of each driving shaft correspondingly extends into one positioning hole, and the outer wall of the driving end is provided with a driving cam; the surface of each driving cam facing the support body is inclined along the axial direction of the corresponding driving shaft to form a lifting surface; each drive shaft has: the splicing driving state and the separation driving state are realized by rotating a driving cam on a driving shaft positioned in a positioning hole on the supporting body to drive each plugging sheet of the plugging hole structure, so that each plugging sheet sinks or rises and rotates around a hinged part of the plugging sheet and the equipment, the conversion between the splicing state and the separation state of each plugging sheet 1 is realized, and the plugging of an opening on the equipment and the removal of the opening plugging are realized conveniently.
Description
Technical Field
The application belongs to the technical field of hole plugging structure design and driving tools thereof, and particularly relates to a hole plugging structure and a driving tool thereof.
Background
Many places have seted up the hole sonde hole on the engine machine casket, to the hole sonde hole many with the end cap shutoff, this kind of technical scheme has following defect:
1) corresponding plug installation seats need to be arranged at corresponding positions on the engine casing, and the plug installation seats protrude out of the engine casing to a higher degree, so that the overall size of the engine casing is influenced;
2) most of the plug seats are directly welded on the surface of the casing, so that the structural stress is large, fatigue cracks are easy to generate, the inspection cost is high, and the potential safety hazard is large;
3) the lengths of different hole probes are different, and the lengths of corresponding plugs are also different, so that the plugs are easy to be installed in error under the condition that the number of the hole probes and the corresponding plugs is large, the plugs protrude or sink into the hole probes, and the pneumatic performance in the casing is influenced;
4) and the disassembly and assembly of the plug and the sealing of the plug are difficult.
The present application has been made in view of the above-mentioned technical drawbacks.
Disclosure of Invention
It is an object of the present application to provide a plugged hole structure and a driving tool thereof to overcome or alleviate at least one aspect of the technical disadvantages known to exist.
The technical scheme of the application is as follows:
in one aspect, there is provided a plugged hole structure comprising:
one end of each blocking piece is a hinged end, and the other end of each blocking piece is a hole blocking end; the hinged end of each flap is adapted to be hinged to a surface of a device having an opening therein; each of the blocking pieces has:
in the splicing state, each plugging piece rotates around the hinged part of the plugging piece and the equipment, so that the plugging end rotates to the position above the opening, and the plugging ends of the plugging pieces are spliced with each other to plug the opening;
in the separated state, each blocking piece rotates around the hinged part of the blocking piece and the equipment to enable the hole blocking end to be away from the upper part of the opening, and the hole blocking ends of the blocking pieces are separated from each other to relieve the blocking of the opening.
According to at least one embodiment of the present application, the hinged end of each flap has a hinge hole;
the hole plugging structure further comprises:
four hinge shafts, one end of each hinge shaft passing through the hinge hole to be connected to a surface of the equipment; each blocking piece can rotate around the corresponding hinge shaft.
According to at least one embodiment of the present application, further comprising:
and one end of each spring is correspondingly connected with one hinge shaft, and the other end of each spring is connected with the corresponding blocking piece so as to press the blocking piece to the surface of the equipment by means of the elastic force of the blocking piece.
According to at least one embodiment of the present application, the outer wall surface of each hinge shaft has a stopper protrusion;
one end of each spring is abutted with the corresponding limiting protrusion, and the other end of each spring is abutted with the corresponding plug piece.
According to at least one embodiment of the present application, each spring is fitted over a corresponding hinge shaft.
According to at least one embodiment of the present application, each of the blanking tab blanking ends has a blanking aperture projection; each blocking piece is positioned as follows:
when in a splicing state, each plugging hole protrudes and sinks into the opening hole;
when the plug is in a separated state, the protrusions of the plug holes are lifted out of the open holes.
According to at least one embodiment of the present application, each of the flaps is at:
when in a splicing state, the plugging holes protrude and are spliced with each other to form a plugging block, and the opening is plugged;
when the plug is in a separated state, the plug is lifted out of the hole, and the plugs are separated from each other due to the protrusion of each plug hole.
According to at least one embodiment of the present application, the side of each flap facing the device is recessed to form a driving groove extending in the axial direction thereof; the middle part of the bottom wall of each driving groove is sunken to form a strip-shaped through hole extending along the axial direction of the corresponding plugging piece, so that a driving tool of the plugging hole structure passes through the corresponding plugging piece extending into the corresponding driving groove to drive the corresponding plugging piece to move, and each plugging piece is in a splicing state or a separation state.
Another aspect provides a driving tool of a plugged hole structure, including:
the support body is provided with four positioning holes;
one end of each driving shaft is a positioning end, and the other end of each driving shaft is a driving end; the positioning end of each driving shaft correspondingly extends into one positioning hole, and the outer wall of the driving end is provided with a driving cam; the surface of each driving cam facing the support body is inclined along the axial direction of the corresponding driving shaft to form a lifting surface; each drive shaft has:
splicing the driving states, wherein the driving end of each driving shaft correspondingly penetrates through the strip-shaped through hole of one plugging sheet, the driving cam is rotated to extend into the corresponding driving groove to be abutted against the side wall of the driving groove so as to drive the corresponding plugging sheet to rotate, the plugging hole end of the plugging sheet is rotated to be above the opening of the equipment, under the action of corresponding spring elastic force, the bottom wall of the driving groove is abutted against the lifting surface of the driving cam, the corresponding plugging sheet slides downwards along the lifting surface, the corresponding plugging hole bulges sink into the opening, the plugging block is formed by splicing the plugging hole bulges so as to plug the opening, and the plugging sheets are in the splicing state;
the separation drive state, each drive shaft rotates, every drive cam's lifting face and the diapire butt that corresponds the drive groove, the elastic force that makes the jam piece that corresponds overcome corresponding spring rises, lift out in order to the stifled hole protruding from the trompil that will correspond, this drive cam then with the lateral wall butt that corresponds the drive groove, rotate with the jam piece that the drive corresponds, make the top that the stifled hole end of this jam left the trompil, each stifled hole protrusion alternate segregation removes the shutoff to the trompil, make each jam piece be in the separation state.
According to at least one embodiment of the present application, each positioning hole is a through hole;
the locating end of each drive shaft extends from the locating hole.
In accordance with at least one embodiment of the present application,
further comprising:
and the positioning end of each driving shaft extends into the inside of the rotating ring to be connected with the tooth pattern of the rotating ring in a matching way.
According to at least one embodiment of the present application, the swivel is in mating connection with the support body spigot.
According to at least one embodiment of the present application, the outer wall of each drive shaft locating end has a locating projection.
According to at least one embodiment of the present application, an outer wall of each drive shaft adjacent the drive end has a stop projection.
According to at least one embodiment of the present application, an outer wall of each drive shaft adjacent the drive end has an annular retaining groove;
the driving tool of the hole plugging structure further comprises:
and each limiting clamping ring is correspondingly clamped into one annular limiting groove to form a limiting protrusion on the corresponding driving shaft.
According to at least one embodiment of this application, have the intercommunication through-hole on the supporter, when the stifled pore structure is in the separation state, the intercommunication through-hole just faces the trompil.
Drawings
FIG. 1 is a schematic view of a plugged hole structure provided in an embodiment of the present application in a spliced state;
FIG. 2 is a A-A diagram of FIG. 1;
FIG. 3 is a schematic diagram of a hole plugging structure provided in an embodiment of the present application in a separated state;
FIG. 4 is a view from the B-B direction of FIG. 3;
FIG. 5 is a schematic view of a patch provided by an embodiment of the present application;
FIG. 6 is a view from the C-C of FIG. 5;
FIG. 7 is a schematic view of a driving tool for providing a plugged hole structure according to an embodiment of the present application;
FIG. 8 is a partial view of region D of FIG. 7;
FIG. 9 is a top view of FIG. 8;
wherein:
1-blocking piece; 2-a hinge axis; 3-a spring; 4-a support; 5-a drive shaft; 6-driving the cam; 7-positioning the protrusion; 8-a limit collar; 9-rotating ring.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The use of the terms "comprising" or "including" and the like in the description of the present application is intended to indicate that the element or item preceding the term covers the element or item listed after the term and its equivalents, without excluding other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application will be described in further detail with reference to fig. 1 to 9.
In one aspect, there is provided a plugged hole structure comprising:
one end of each blocking piece 1 is a hinged end, and the other end of each blocking piece 1 is a hole blocking end; the hinged end of each flap 1 is intended to be hinged to a surface of a device having an opening; each of the blocking pieces 1 has:
in the splicing state, each plugging sheet 1 rotates around the hinged part of the plugging sheet and equipment to enable the plugging hole end to rotate above the opening, and the plugging hole ends of the plugging sheets 1 are spliced with each other to plug the opening;
in the separated state, each plugging piece 1 rotates around the hinged part of the plugging piece 1 and the equipment to enable the plugging end to be away from the upper part of the opening, and the plugging ends of the plugging pieces 1 are separated from each other to release the plugging of the opening.
For the plugging hole structure disclosed in the above embodiment, it can be understood by those skilled in the art that the plugging pieces 1 of the plugging hole structure can be switched between the splicing state and the separation state by rotating, and it can be understood that the rotation is in the opposite direction, and when each plugging piece 1 is in the splicing state, the plugging of the opening on the device can be realized; when each blocking piece 2 is in a separated state, the blocking of the open hole on the equipment can be released, and the operation is simple and convenient and is easy to realize.
For the plugging hole structure disclosed in the above embodiment, a person skilled in the art can also realize that the plugging hole structure is applied to plugging a hole detector hole on an engine casing, a hinged end of each plugging piece 1 can be hinged to the surface of the engine casing, plugging of the hole detector hole on the engine casing or plugging of the hole detector hole on the engine casing can be realized or released by rotating the plugging piece 1 in a splicing state or a separation state, each plugging piece 1 of the plugging hole structure can only be attached to the surface of the engine casing to reduce the influence on the external dimension of the engine casing, and each plugging piece 1 of the plugging hole structure is hinged to the surface of the engine casing without being welded and fixed, thereby avoiding the generation of welding cracks, having higher safety and avoiding the possibility of misassembly.
In some alternative embodiments, the hinged end of each flap 1 has a hinge hole;
the hole plugging structure further comprises:
four hinge shafts 2, one end of each hinge shaft 2 passing through a hinge hole for connection to a surface of the apparatus; each flap 1 is able to rotate about a respective hinge axis 2.
In some optional embodiments, further comprising:
and one end of each spring 3 is correspondingly connected with one hinge shaft 2, and the other end of each spring 3 is connected with the corresponding blocking piece 1, so that the blocking pieces 1 are pressed to the surface of the equipment by means of the elastic force of the blocking pieces, and a better sealing effect is achieved.
In some alternative embodiments, the outer wall surface of each hinge shaft 2 has a stopper protrusion;
one end of each spring 3 is abutted with the corresponding limiting protrusion, and the other end of each spring is abutted with the corresponding plug piece 1.
In some alternative embodiments, each spring 3 is fitted on a corresponding hinge shaft 2.
In some alternative embodiments, the hole plugging end of each plugging sheet 1 is provided with a hole plugging bulge; each of the blocking pieces 1 is located at:
when in a splicing state, each plugging hole protrudes and sinks into the open hole to avoid the rotation of the plugging pieces 1, thereby well realizing the positioning effect of each plugging piece 1 and ensuring the plugging effect of the open hole on the equipment;
during the detached state, each stifled hole is protruding to be lifted out from the trompil to can make each closure strip 1 rotate around its articulated position with equipment, make each closure strip 1 can make the transition from concatenation state to detached state, relieve the shutoff to the trompil on the equipment.
In some alternative embodiments, each patch 1 is in:
when the plugging device is in a splicing state, the protrusions of the plugging holes are spliced with each other to form plugging blocks, namely the plugging blocks formed by splicing the protrusions of the plugging holes are sunk in the open holes of the equipment, so that the open holes can be plugged well;
when the plug is in a separated state, the plug is lifted out of the hole, and the plugs are separated from each other due to the protrusion of each plug hole.
In some alternative embodiments, the side of each flap 1 facing the device is recessed to form a driving groove extending in the axial direction thereof; the sunken strip through-hole that forms along corresponding stifled piece 1 axial extension of diapire middle part of every drive groove to the driving tool that supplies stifled pore structure passes and stretches into to the corresponding stifled piece 1 of drive correspondence in the drive groove and move, makes each stifled piece 1 be in the concatenation state or be in the separation state.
Another aspect provides a driving tool of a plugged hole structure, including:
the supporting body 4 is provided with four positioning holes;
one end of each driving shaft is a positioning end, and the other end of each driving shaft is a driving end; the positioning end of each driving shaft correspondingly extends into one positioning hole, and the outer wall of the driving end is provided with a driving cam 6; the surface of each driving cam 6 facing the supporting body 4 is inclined in the axial direction of the corresponding driving shaft 5 to form a raised surface; each drive shaft 5 has:
splicing the driving state, wherein the driving end of each driving shaft 5 correspondingly penetrates through the strip-shaped through hole of one plug sheet 1, the driving cam 6 of the driving shaft is rotated to extend into the corresponding driving groove to be abutted against the side wall of the driving groove, so as to drive the corresponding plug sheet 1 to rotate, the plug hole end of the plug sheet 1 is rotated to be above the opening of the equipment, under the action of the elastic force of the corresponding spring 3, the bottom wall of the driving groove is abutted against the lifting surface of the driving cam 6, the corresponding plug sheet 1 slides downwards along the lifting surface, the corresponding plug hole protrusion sinks into the opening, the plug hole protrusions are spliced with each other to form a plug block to plug the opening, and each plug sheet 1 is in a splicing state;
separation drive state, each drive shaft 5 rotates, every drive cam 6's lifting face and the diapire butt that corresponds the drive slot, make the elastic force that corresponds 1 stifled piece of correspondence overcome and correspond spring 3 rise, lift out in order to the stifled hole that will correspond protruding from the trompil, this drive cam 6 then with the lateral wall butt that corresponds the drive slot, rotate with the stifled piece 1 that the drive corresponds, make the stifled hole end of this stifled piece 1 leave the top of trompil, each stifled hole protrusion alternate segregation removes the shutoff to the trompil, make each stifled piece 1 be in the separation state.
For the driving tool of the hole plugging structure disclosed in the above embodiment, it can be understood by those skilled in the art that the driving cam 6 on the driving shaft 5 positioned in the positioning hole on the supporting body 4 rotates to drive each plugging sheet 1 of the hole plugging structure, so that each plugging sheet 1 sinks or lifts and rotates around the hinged part of the plugging sheet 1 and the device, and the switching between the splicing state and the separation state of each plugging sheet 1 is realized, thereby conveniently realizing the plugging of the opening on the device and the releasing of the plugging of the opening.
In some alternative embodiments, each positioning hole is a through hole;
the locating end of each drive shaft 5 extends from the locating hole to facilitate rotation of the drive shaft 5.
In some optional embodiments, further comprising:
and the positioning end of each driving shaft 5 extends into the rotating ring 9 and is connected with the rotating ring 9 in a tooth-pattern matching way.
With regard to the driving tool with the hole plugging structure disclosed in the above embodiments, it can be understood by those skilled in the art that the positioning end of each driving shaft 5 is connected with the inner insection of the rotating ring 9 in a matching manner, so that the synchronous driving of the rotation of each driving shaft 5 can be realized through the rotation of the rotating ring 9.
In some alternative embodiments, the swivel 9 is connected with the spigot of the support body 4.
In some alternative embodiments, the outer wall of the positioning end of each drive shaft 5 has a positioning projection 7 to facilitate rotation of the drive shaft 5 and to limit downward sliding of the drive shaft 5.
In some alternative embodiments, the outer wall of each drive shaft 5 near the drive end has a limit protrusion to limit the drive shaft 5 from sliding upward
In some alternative embodiments, the outer wall of each drive shaft 5 near the drive end has an annular retaining groove;
the driving tool of the hole plugging structure further comprises:
and each limiting clamping ring 8 is correspondingly clamped into one annular limiting groove to form a limiting protrusion corresponding to the driving shaft 5.
In some alternative embodiments, the support body 4 has a communication through hole, and when the hole plugging structure is in the separation state, the communication through hole faces the opening hole to facilitate probing of the opening hole.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (8)
1. A driving tool for a blind hole structure, comprising:
the supporting body (4) is provided with four positioning holes;
one end of each driving shaft is a positioning end, and the other end of each driving shaft is a driving end; the positioning end of each driving shaft correspondingly extends into one positioning hole, and the outer wall of the driving end is provided with a driving cam (6); the surface of each driving cam (6) facing the supporting body (4) is inclined along the axial direction of the corresponding driving shaft (5) to form a lifting surface; each of the drive shafts (5) has:
the splicing driving state is realized, the driving end of each driving shaft (5) correspondingly penetrates through a strip-shaped through hole on the outer side of one plugging piece (1) and extends into a driving groove on the inner side of the corresponding plugging piece (1), the driving cam (6) is enabled to abut against the side wall of the corresponding driving groove by rotation, then the corresponding plugging piece (1) is driven to rotate, the plugging end of the plugging piece (1) is enabled to rotate to the position above the opening on the equipment, the bottom wall of the driving groove is abutted against the lifting surface of the driving cam (6) under the action of the elastic force of the corresponding spring (3), the corresponding plugging piece (1) slides downwards along the lifting surface, the corresponding plugging hole bulges sink into the opening, the plugging hole bulges are spliced with each other to form a plugging block for plugging the opening, and the plugging pieces (1) are enabled to be in the splicing state;
and (3) separating the driving state, rotating each driving shaft (5), abutting the lifting surface of each driving cam (6) with the bottom wall of the corresponding driving groove, enabling the corresponding plugging piece (1) to overcome the elastic force of the corresponding spring (3) to lift the corresponding plugging hole protrusion out of the opening, abutting the driving cam (6) with the side wall of the corresponding driving groove to drive the corresponding plugging piece (1) to rotate, enabling the plugging hole end of the plugging piece (1) to be separated from the upper part of the opening, separating the plugging hole protrusions from each other, releasing the plugging of the opening, and enabling each plugging piece (1) to be in the separated state.
2. The driving tool of the plugged hole structure according to claim 1,
each positioning hole is a through hole;
the positioning end of each driving shaft (5) extends out of the positioning hole.
3. The driving tool of the plugged hole structure according to claim 2,
further comprising:
and the positioning end of each driving shaft (5) extends into the inside of the rotating ring (9) and is connected with the insection of the rotating ring (9) in a matching way.
4. The driving tool of the plugged hole structure according to claim 3,
the rotating ring (9) is matched and connected with the spigot of the support body (4).
5. The driving tool of the plugged hole structure according to claim 2,
the outer wall of the positioning end of each driving shaft (5) is provided with a positioning projection (7).
6. The driving tool of the plugging hole structure of claim 2, wherein said driving tool is characterized in that
And the outer wall of each driving shaft (5) close to the driving end is provided with a limiting protrusion.
7. The driving tool of the plugged hole structure according to claim 6,
the outer wall of each driving shaft (5) close to the driving end is provided with an annular limiting groove;
the driving tool of the hole plugging structure further comprises:
and each limiting clamping ring (8) is correspondingly clamped into one annular limiting groove to form a limiting protrusion on the corresponding driving shaft (5).
8. The driving tool of the plugged hole structure according to claim 1,
the support body (4) is provided with a communication through hole, and when the hole plugging structure is in a separation state, the communication through hole is opposite to the open hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010113002.7A CN111271138B (en) | 2020-02-24 | 2020-02-24 | Hole plugging structure and driving tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010113002.7A CN111271138B (en) | 2020-02-24 | 2020-02-24 | Hole plugging structure and driving tool thereof |
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| Publication Number | Publication Date |
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| CN111271138A CN111271138A (en) | 2020-06-12 |
| CN111271138B true CN111271138B (en) | 2022-02-22 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3420582A (en) * | 1964-07-22 | 1969-01-07 | Toroid Corp | Universal flexure type joint |
| NL1011374C1 (en) * | 1999-02-23 | 2000-08-24 | Verachtert A P Metaalfab | Connecting piece. |
| CN209954568U (en) * | 2018-12-17 | 2020-01-17 | 中国航发沈阳发动机研究所 | Oil distribution sleeve dismounting mechanism |
| CN209698963U (en) * | 2018-12-17 | 2019-11-29 | 中国航发沈阳发动机研究所 | A kind of torsion type cup type locking plate locking fixture |
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2020
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