CN110292413A - Revolution cavity is begun to speak device in a kind of - Google Patents
Revolution cavity is begun to speak device in a kind of Download PDFInfo
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- CN110292413A CN110292413A CN201910569751.8A CN201910569751A CN110292413A CN 110292413 A CN110292413 A CN 110292413A CN 201910569751 A CN201910569751 A CN 201910569751A CN 110292413 A CN110292413 A CN 110292413A
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- 238000005520 cutting process Methods 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 206010028851 Necrosis Diseases 0.000 description 6
- 230000017074 necrotic cell death Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003902 lesion Effects 0.000 description 5
- 210000000689 upper leg Anatomy 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 210000002391 femur head Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 239000003818 cinder Substances 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 206010031264 Osteonecrosis Diseases 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000006820 Arthralgia Diseases 0.000 description 1
- 208000015813 Familial avascular necrosis of femoral head Diseases 0.000 description 1
- 208000007875 Femur Head Necrosis Diseases 0.000 description 1
- 206010016454 Femur fracture Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000002449 bone cell Anatomy 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 230000030833 cell death Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000002651 drug therapy Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 210000001694 thigh bone Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1631—Special drive shafts, e.g. flexible shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/164—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans intramedullary
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1642—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for producing a curved bore
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1668—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses turning round cavity in one kind to begin to speak device, belong to internal cavity cutting technology field, for can only be under the requirement by passage aisle, inside to cut big type chamber.The device be followed successively by from the front to the back guiding begin to crop up, blade, pin shaft, interior bar, outer bar, nut, limit pin shaft, ball, retaining ring and push rod etc..The tail end of outer bar is clamped on power electric drill, push rod is threadedly coupled electric drill and interior bar is pushed to move forward, and blade begins to crop up along guiding be flared out while rotating, and material is successively cut off, and forms the type chamber of a revolution.The device of beginning to speak that the present apparatus is used to that passage aisle only to be needed to open internal large cavity, its high reliablity, can satisfy only need to drill out smaller straight hole tunnel in structure, can output a big rotary type chamber in the inside of structure, output big inner hole on the basis of destruction structure as few as possible.Boring device of the invention is easy to use, easy to operate.
Description
Technical field
The invention belongs to internal cavity cutting technology fields, in particular to one kind for only passage aisle being needed to open internal large cavity
Boring device.
Background technique
In clinical medicine diagnosis and treatment field, hip arthralgia is a kind of common disease, wherein a lot of causes of disease are by femur
Caused by head necrosis.Caput femoris necrosis is also known as avascular necrosis of femoral head, refers to that femoral head blood supply is interrupted or is damaged, leads to bone
Marrow and generation lesion or bone cell death, until the pathology such as collapse of femoral head sexually revise and clinical manifestation.Caput femoris necrosis according to
The severity of the state of an illness is clinically generally divided into four periods.The method for treating caput femoris necrosis can substantially be summarized as three
Major class: (1) outer pathogenic because utilizing human body self-healing energy using drug therapy or other methods cutting to I phase Patients with Aseptic Necrosis of Femoral
Power repairs femoral head；(2) core decompression art is generally used to II phase, III phase patient to do the operative treatment for retaining femoral head；
(3) it generally uses prosthetic replacement's operation to treat IV phase patient, the femoral head of necrosis is cut off.Core decompression art is
For a kind of effective treatment method that II, III phase Patients with Aseptic Necrosis of Femoral propose, the purpose is to by marrow lateral outside femoral head
In-core drilling, forms pressure relief channels, it is possible thereby to improve the blood circulation inside femoral head, guarantees that blood circulation is smooth,
To mitigate pain.Clinically the operation method of the core decompression of comparative maturity is conventional cuts on the outside of exposure near end of thighbone now
Cortical bone, then straight hole tunnel is drilled out along guide pin with core drill, finally by tantalum stick or fresh bone filling tunnel, operation is completed in suture.
In addition in one of the fundamental technology of modern mechanical manufacturing industry casting field, casting is will be by the molten metal of melting
Body is poured into casting mold, the manufacturing process of the part of shape needed for obtaining through cooled and solidified and performance.Casting is commonly to manufacture
Method, manufacturing cost is low, and technological flexibility is big, can obtain complicated shape and large-scale casting, and weight is occupied in machine-building
The status wanted.But casting flaw is always to perplex a great problem of casting technique, casting flaw Resolving probiems are bad to be will affect
The quality of casting.Occur in casting process various casting flaw problems such as wear, scratch, sand holes, crackle.Wherein sand holes, slag
Hole is relatively common casting flaw, in die casting casting process, due to the slag or sundries in aluminium alloy, by alloy liquid stream institute
Package, as the process of die-castingmold filling is involved in mold cavity, after cooled and solidified, to make to form hole in casting, this is just
It needs to repair defect.
In conclusion if completely to need out same size straight lesion or residue removing completely in above two field
The channel of diameter will form certain risk.Such as first, the drill straight hole tunnel approach clinically used at present is directed to the III phase
Patient, femoral head intramedullary core segment lesion will completely remove lesion and mean that and drill out bigger hole tunnel than more serious, but people
It is that diameter is smaller at neck of femur that the femur of body, which constitutes feature, and drilling out big hole tunnel, to this may result in neck of femur too thin, is led
Neck of femur fracture is caused, more serious consequence is caused；Secondly in casting field, if by cinder hole residue or sand holes completely remove
Clean or reparation, needs to get the channel of same diameter, very big destruction can be caused to the structure of casting itself, some is even not
It can use, scrap of the product.
Summary of the invention
The problem of for above-mentioned existing method or technique, the present invention provides internal big for only needing passage aisle to open
Revolution cavity is begun to speak device in one kind of type chamber, its high reliablity, can satisfy only need to drill out smaller straight hole tunnel in structure,
A big rotary type chamber can be outputed in the inside of structure, output big inner hole on the basis of destruction structure as few as possible.
Boring device of the invention is easy to use, easy to operate.
Use of the apparatus of the present invention in above-mentioned two field is two using typical case, all to be directed in structure
Portion needs to output big type chamber and destruction structure as few as possible, technical solution provided by the present invention are all suitable for, it is only necessary to
The size and material of device are changed according to structure.
The present invention is achieved by the following scheme:
Revolution cavity is begun to speak device in of the invention a kind of, including guiding is begun to crop up, blade, outer bar, interior bar, push rod, power electric
It bores；The guiding is begun to crop up to be threadedly coupled with the top of outer bar, and the tail end of outer bar connects with push rod；The push rod is located at power electric drill
Inside, push rod, interior bar are identical as the axle center of outer bar；
Outer bar is a hollow tubular structure, and hollow structure can make interior bar elastic movement inside it；Outer bar tail end
It is threadedly coupled for external thread structure and nut；Outer bar front end is that internal thread structure and guiding are begun to crop up and be threadedly coupled, outer bar
Tail end design has long hole, and limit pin shaft is slided in the long hole in outer bar；Interior bar is installed, interior bar is the top side of having inside outer bar
The cylindrical structure of slot；By the connection of pin shaft bilateral symmetry, there are two blades at the top of interior bar；Interior bar tail end is equipped with by pin hole
Limit pin shaft, the inner hole of outer bar tail end are sequentially installed with ball and retaining ring, and ball diameter is less than outer bar diameter of bore, can be outside
It is freely rotated in bar.
Preferably, the blade is arc-shaped, and tail end has pin hole to connect with pin shaft, is cutting blade on the outside of blade circular arc；
Design has triangle jacking block on blade, and the groove width that blade thickness adds jacking block thickness to begin to crop up with guiding is equal, and blade can be made to rotate
When being impacted in the process by radial force, it can guarantee that cutting is stablized；After limit pin shaft is by pin hole and interior bar interference fit connection, two
The long hole in outer bar is held, the diameter of limit pin shaft is less than long hole width, can guarantee that limit pin shaft is free to slide in long hole,
The length limitation of long hole blade ejection distance, long hole front position guarantee blade stretch out after diameter be aperture needed for it is straight
Diameter, terminal position guarantee that blade can be shunk back completely in guiding begins to crop up, it is ensured that boring device can be exited out of channel.
Preferably, the nut that the same outer bar is threadedly coupled is equipped with the aperture for installing limit pin shaft, and nut is
One band internal thread cylindrical structure, the ladder inner hole of nut are greater than outer bar tail end diameter, guarantee that nut can be screwed freely into
It screws out.
Preferably, design retaining ring is a hollow cylindrical structure, retaining ring outer diameter and outer bar tail to limit ball, retaining ring
Holding inner hole is interference fit, and retaining ring diameter of bore is greater than push rod, guarantees that push rod can be free to slide in retaining ring inner hole；Push rod pushes
When interior bar, ball separates two components, anti-throw-out lever connecting shaft rotation between push rod and interior bar.
Preferably, the push rod is a circle long rod structure, and tail end design has screw thread and knob and power electric drill shaft mesoporous
It is threadedly coupled, promotes interior bar to open blade by screw thread rotation, after push rod is retracted, blade can push spacer pin by nut
Axis is retracted.
Preferably, it is that external thread structure and outer bar are threadedly coupled that the guiding, which emits tail end, and tail end is also devised with 90 degree of friendships
Straight trough is pitched, the movement of blade is done guiding by 90 degree of crossed grooves and extended and retracted, and the diameter and blade phase of head circular arc of begining to crop up are oriented to
Together, it screws out blade to after maximum position, guarantees to form a regular spherical pore.
The present invention has the advantages that following significant compared with prior art:
In clinical medicine domain, caput femoris necrosis II, III phase illness is treated for core decompression art at present, is removed much
The lesion of diameter must output the channel of same diameter, bigger to the wound of neck of femur.Boring device of the invention can be logical
The channel for crossing small diameter can cut biggish revolution inner cavity, greatly reduce the wound of bony structure, for cleaning knot
The intra focal of structure provides a kind of new operation method.
Revolution cavity device of beginning to speak provides a kind of innovation in structure in one kind of the invention, and the size of device is according to reality
Border applicable cases design different sizes, and the material of device is designed accordingly according to the material of cutting, such as cutting bone
Head, blade uses general metal material, but cutting metal, blade just need cemented carbide material, the power of electric drill
There is correspondingly high requirement.
The revolution cavity type chamber that device is outputed of beginning to speak can also have a different structures in one kind of the invention, such as spherical,
Cylinder, cone etc. can design according to actual needs, have very big flexibility.
The use of apparatus of the present invention in the medical field is one using typical case, and all inside configurations that is directed to need
It outputs big type chamber and destruction structure as few as possible, apparatus of the present invention is all suitable for, it is only necessary to which device is changed according to structure
Size and material.For example, internal after cast member forming it is possible that having the cinder hole of impurity, aperture of the invention
After device is by changing blade material and its dynamical system, after X-ray determines orientation, an aperture is first outputed to cinder hole center
Position reuses after this boring device cleans out residue and repairs.The wound of structure is considerably reduced, for cleaning structure
Internal flaw provides a kind of new process.
In short, a kind of interior revolution cavity of the present invention is begun to speak, device can be applied in different fields, as long as having in structure
When inside cuts the demand of a large cavity, technical solution provided by the present invention can be used, is had the advantages that significant.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is 1/4 section view assembling structure schematic diagram of the invention.
Fig. 3 is the blade partial schematic diagram in the present invention.
Fig. 4 is that the guiding in the present invention is begun to crop up partial schematic diagram.
Fig. 5 is the limit pin shaft partial schematic diagram in the present invention.
Fig. 6 is the push rod electric drill sectional arrangement drawing in the present invention.
Each part description in figure:
1- guiding is begun to crop up；2- blade；3- outer bar；4- nut；5- limit pin shaft；6- pin shaft；7- interior bar；8- ball；9- gear
Circle；10- push rod；11- power electric drill
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
Referring to Fig. 1 to Fig. 6.
Revolution cavity is begun to speak device in of the invention a kind of, including guiding begin to crop up 1, blade 2, outer bar 3, interior bar 7, push rod 10,
Power electric drill 11；The guiding is begun to crop up 1 to be threadedly coupled with the top of outer bar 3, and the tail end of outer bar 3 connects with push rod 10；It is described to push away
Bar 10 is located at the inside of power electric drill 11, and push rod 10, interior bar 7 are identical as the axle center of outer bar 3.
Preferably, the outer bar 3 is a hollow tubular structure, and hollow structure can make interior bar 7 elastic inside it
Movement；3 tail end of outer bar is that external thread structure and nut 4 are threadedly coupled；3 front end of outer bar is that internal thread structure and guiding are begun to crop up
1 is threadedly coupled, and the design of 3 tail end of outer bar has long hole, and limit pin shaft 5 is slided in the long hole in outer bar 3；It is installed inside outer bar 3
There is interior bar 7, interior bar 7 is the cylindrical structure that square groove is arranged at top；At the top of interior bar 7 by pin shaft 6 symmetrically connect there are two knife
Piece 2；7 tail end of interior bar is equipped with limit pin shaft 5 by pin hole, and the inner hole of 3 tail end of outer bar is sequentially installed with ball 8 and retaining ring 9, rolling
8 diameter of pearl is less than 3 diameter of bore of outer bar, can be freely rotated in outer bar 3.
Preferably, after the limit pin shaft 5 is by pin hole and the interference fit connection of interior bar 7, both ends pass through the length in outer bar 3
The diameter in hole, limit pin shaft 5 is less than long hole width, can guarantee that limit pin shaft 5 is free to slide in long hole, the length limitation of long hole
Blade 2 eject distance, long hole front position guarantee blade 2 stretch out after diameter be aperture needed for diameter, terminal position
Guarantee that blade can shrink back guiding completely and begin to crop up in 1, it is ensured that boring device can be exited out of channel.
Preferably, the nut 4 that the same outer bar 3 is threadedly coupled is equipped with the aperture for installing limit pin shaft 5, nut
4 be a band internal thread cylindrical structure, and the ladder inner hole of nut 4 is greater than outer bar tail end diameter, guarantees that nut 4 can be freely
It screws in and screws out.
Preferably, design retaining ring 9 is to limit ball 8, and retaining ring 9 is a hollow cylindrical structure, 9 outer diameter of retaining ring and outer
3 tail end inner hole of bar is interference fit, and 9 diameter of bore of retaining ring is greater than push rod 10, guarantees that push rod 10 can the free skating in 9 inner hole of retaining ring
It is dynamic；When push rod 10 pushes interior bar 7, ball 8 separates two components, anti-10 connecting shaft of throw-out lever rotation between push rod 10 and interior bar 7
Turn.
Preferably, the blade 2 is arc-shaped, and tail end has pin hole and pin shaft 6 to connect, and is bite on the outside of 2 circular arc of blade
Sword；Design has a triangle jacking block on blade 2,2 thickness of blade add jacking block thickness and being oriented to begin to crop up 1 groove width it is equal, blade 2 can be made
When being impacted in rotary course by radial force, it can guarantee that cutting is stablized.
Preferably, the guiding begins to crop up 1 tail end as external thread structure and the threaded connection of outer bar 3, and tail end is also devised with 90 degree
Intersect straight trough, the movement of blade 2 is done guiding by 90 degree of crossed grooves and extended and retracted, and the diameter and knife of 1 head circular arc of begining to crop up are oriented to
Piece 2 is identical, screws out blade 2 to after maximum position, guarantees to form a regular spherical pore.
Preferably, the push rod 10 is a circle long rod structure, and tail end design has screw thread and knob and 11 shaft of power electric drill
Mesoporous is threadedly coupled, and promotes interior bar 7 to open blade 2 by screw thread rotation, after push rod 10 is retracted, blade 2 can pass through nut 4
Limit pin shaft 5 is pushed to retract.
Assembly and the course of work:
The outer bar 3 is a hollow cylindrical structure, and hollow structure design is in order to make interior bar 7 stretch in inside
Movement, tail end designs for external thread structure and nut 4 is threadedly coupled, and front end is that designed with internal thread structures and guiding are begun to crop up and done
It is threadedly coupled, 3 tail end of outer bar is also devised with long hole, and limit pin shaft 5 is slide in slot hole.3 inner hole of outer bar is equipped with interior bar 7, interior
Bar 7 is cylindrical structure design, and square groove design is arranged at top, symmetrically connect by pin shaft 6 there are two blade 2,7 tail of interior bar
End is equipped with limit pin shaft 5 by pin hole, is sequentially installed with ball 8 and retaining ring 9 in the inner hole of 3 tail end of outer bar, 8 diameter of ball is small
In diameter of bore, can be rolled in hole；
The blade 2 is left and right symmetrically arranged in the fluting of interior bar 7, is interference fitted connection by the aperture of pin shaft 6, is protected
After card assembly blade 2 can flexible rotating, when work can begin to crop up along guiding 1 guide surface open and retract.
Inner hole is penetrated from the top of outer bar 3 after the interior bar 7 and the installation of blade 2, is guaranteed in interior bar 7 in 3 hole of outer bar
It can flexibly push, begin to crop up after 1 installing guiding, blade 2 can flexibly open in the card slot that guiding begins to crop up 1,
Design has a triangle jacking block boss on the blade 2,2 thickness of blade add jacking block thickness and guiding begin to crop up 1 groove width phase
Deng, this design is meant to ensure that blade 2 is impacted in rotary course by radial force, can guarantee cutting stablize.Boss energy on blade
Guarantee blade opening movement and rotary motion at work, without mobile and deformation under the action of rotary force.
For the limit pin shaft 5 after the long hole for penetrating into outer bar 3, its amount of movement in long hole decides of blade
Opening amount, long hole limit two positions of pin shaft 5, and front end limit guarantees the maximum distance of opening of blade 2 at pre-set one
Diameter circle, rear end limit will not only guarantee that blade 2 is completely retracted into guiding and begins to crop up in 1, it is logical from femoral head not influence boring device
Exited in road, but also to guarantee the front end of two blades 2 can also stay in guiding begin to crop up 1 45 degree of guide surfaces on so that under
Blade 2 can smoothly be opened along guide surface when secondary opening.
5 forward travel of limit pin shaft is pushed ahead by push rod 10, and setback is by nut 4 in outer bar
Screw thread cycle pushes the rear end that limit pin shaft 5 returns to long hole.
The ball 8 is after the inner hole for being packed into outer bar 3, and inner hole will not be dropped out by limiting ball 8 by retaining ring 9, in interior bar 7
With the transmitting for passing through ball 8 among push rod, it can avoid the interior bar 7 in rotary motion that push rod 10 is driven to rotate coaxially.Because of push rod
10 forward travel is promoted by screw thread, if rotation will lead to push rod 10 and advance in place rapidly, blade 2 is caused to damage.
When in use, it is necessary first to drill out the channel of a small diameter with electric drill, limit pin shaft 5 is then fallen back on into keyway
Back-end location makes blade 2 be retracted into guiding and begins to crop up in 1, the present apparatus is protruded into predetermined position of beginning to speak at this time；Nut 4 is threaded to most
The collet of front position, power electric drill 11 clamps 3 tail portion of outer bar, and push rod withstands ball 8.Boring device is driven in power electric drill 11
While rotation, the knob of 10 rear end of rotating push rod makes push rod 10 push interior bar 7 by ball 8, ejects blade 2,2 edge of blade
Guiding begin to crop up 1 90 degree crossed grooves guiding opening, cut type chamber.After cutting, the knob of 10 rear end of rotating push rod makes to push away
Bar 10 retracts back-end location, is retracted limit pin shaft 5 using nut 4, with cutting blade 2 be retracted into guiding begin to crop up 1 keyway in, will
Boring device takes out out of channel, whole process end of operation.
Claims (6)
- The device 1. a kind of interior revolution cavity is begun to speak, it is characterised in that: begin to crop up (1) including guiding, blade (2), outer bar (3), interior bar (7), push rod (10), power electric drill (11)；It is described guiding begin to crop up (1) be threadedly coupled with the top of outer bar (3), the tail of outer bar (3) End connects with push rod (10)；The push rod (10) is located at the inside of power electric drill (11), push rod (10), interior bar (7) and outer bar (3) Axle center it is identical；Outer bar (3) is a hollow tubular structure, and hollow structure can make interior bar (7) elastic movement inside it；Outer bar (3) Tail end is that external thread structure and nut (4) are threadedly coupled；Outer bar (3) front end be internal thread structure and guiding begin to crop up (1) do It is threadedly coupled, the design of outer bar (3) tail end has long hole, sliding in long hole of the limit pin shaft (5) on outer bar (3)；Outer bar (3) is internal It is equipped with interior bar (7), interior bar (7) is the cylindrical structure that square groove is arranged at top；Pass through pin shaft (6) bilateral symmetry at the top of interior bar (7) There are two blade (2) for connection；Interior bar (7) tail end is equipped with limit pin shaft (5) by pin hole, and the inner hole of outer bar (3) tail end is successively Ball (8) and retaining ring (9) are installed, ball (8) diameter is less than outer bar (3) diameter of bore, can freely turn in outer bar (3) It is dynamic.
- The device 2. a kind of interior revolution cavity according to claim 2 is begun to speak, it is characterised in that: blade (2) is arc-shaped, tail There are pin hole and pin shaft (6) connection in end, is cutting blade on the outside of blade (2) circular arc；Design has triangle jacking block, knife on blade (2) Piece (2) thickness add jacking block thickness and guiding begin to crop up (1) groove width it is equal, blade (2) can be made to be rushed in rotary course by radial force When hitting, it can guarantee that cutting is stablized；After limit pin shaft (5) is by pin hole and interior bar (7) interference fit connection, both ends pass through outer bar (3) diameter of the long hole on, limit pin shaft (5) is less than long hole width, can guarantee that limit pin shaft (5) is free to slide in long hole, The length limitation of long hole blade (2) ejection distance, long hole front position guarantee blade (2) stretch out after diameter be aperture institute The diameter needed, terminal position guarantee that blade can shrink back guiding completely and begin to crop up in (1), it is ensured that boring device can be moved back out of channel Out.
- The device 3. a kind of interior revolution cavity according to claim 2 is begun to speak, it is characterised in that: same to outer bar (3) screw thread The nut (4) of connection is equipped with the aperture for installing limit pin shaft (5), and nut (4) is a band internal thread cylindrical body The ladder inner hole of structure, nut (4) is greater than outer bar tail end diameter, guarantees that nut (4) can be screwed freely into back-out.
- The device 4. a kind of interior revolution cavity according to claim 2 is begun to speak, it is characterised in that: design retaining ring (9) is to limit Position ball (8), retaining ring (9) are a hollow cylindrical structure, and retaining ring (9) outer diameter and outer bar (3) tail end inner hole are interference fit, Retaining ring (9) diameter of bore is greater than push rod (10), guarantees that push rod (10) can be free to slide in retaining ring (9) inner hole；Push rod (10) pushes away When dynamic interior bar (7), ball (8) is located between push rod (10) and interior bar (7), separates two components, anti-throw-out lever (10) connecting shaft rotation Turn.
- The device 5. a kind of interior revolution cavity according to claim 2 is begun to speak, it is characterised in that: push rod (10) is a circle stock Structure, tail end design have screw thread and knob and power electric drill (11) shaft mesoporous to be threadedly coupled, promote interior bar by screw thread rotation (7) open blade (2), after push rod (10) is retracted, blade (2) can push limit pin shaft (5) to retract by nut (4).
- The device 6. a kind of interior revolution cavity according to claim 2 is begun to speak, it is characterised in that: being oriented to (1) tail end of begining to crop up is External thread structure and outer bar (3) are threadedly coupled, and tail end is also devised with 90 degree of intersection straight troughs, and the movement of blade (2) is by 90 degree of intersections Slot does guiding and extends and retracts, and diameter and the blade (2) for being oriented to (1) head circular arc of begining to crop up are identical, screws out blade (2) to maximum Behind position, guarantee to form a regular spherical pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569751.8A CN110292413A (en) | 2019-06-27 | 2019-06-27 | Revolution cavity is begun to speak device in a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569751.8A CN110292413A (en) | 2019-06-27 | 2019-06-27 | Revolution cavity is begun to speak device in a kind of |
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| Publication Number | Publication Date |
|---|---|
| CN110292413A true CN110292413A (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910569751.8A Pending CN110292413A (en) | 2019-06-27 | 2019-06-27 | Revolution cavity is begun to speak device in a kind of |
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| Country | Link |
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| CN (1) | CN110292413A (en) |
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