CN110439901A - A kind of rod piece unilateral locking device - Google Patents
A kind of rod piece unilateral locking device Download PDFInfo
- Publication number
- CN110439901A CN110439901A CN201910818263.6A CN201910818263A CN110439901A CN 110439901 A CN110439901 A CN 110439901A CN 201910818263 A CN201910818263 A CN 201910818263A CN 110439901 A CN110439901 A CN 110439901A
- Authority
- CN
- China
- Prior art keywords
- rod piece
- rear axle
- locking device
- shaft sleeve
- front shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003032 molecular docking Methods 0.000 claims abstract description 3
- 230000006835 compression Effects 0.000 claims description 43
- 238000007906 compression Methods 0.000 claims description 43
- 238000003825 pressing Methods 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/02—Releasable fastening devices locking by rotation
- F16B21/04—Releasable fastening devices locking by rotation with bayonet catch
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2946—Locking means
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The present invention relates to a kind of rod piece unilateral locking devices, including pivoted housing (3), rear axle housing (8), front shaft sleeve (9), rear axle housing (8) and the front shaft sleeve (9) are in concentric tandem docking, pivoted housing (3) setting rear axle housing (8) and front shaft sleeve (9) outside, be rotatably connected with rear axle housing (8) and front shaft sleeve (9).Compared with prior art, the present invention realizes the locking in the axial set direction of rod piece using pivoted housing rotation, can be quick, the latching axial position of any position, and unlock only needs that pivoted housing is simply gone back to certain angle, convenient and efficient.
Description
Technical field
The present invention relates to a kind of locking devices, more particularly, to a kind of rod piece unilateral locking device.
Background technique
The rod piece of axial movement just needs to fix its position when reaching target position.Traditional axial rod lock tightening
Screw or positioning pin are realized.Such as Minimally Invasive Surgery clamps claw beam in practical rod piece use, often without locking device or by hand
The device of limitation handle motion is installed at handle additional to keep clamp position.These are all comparatively laborious or cannot locking accurately and timely
The axial movement of bar, the final positioning for influencing instrument.
Chinese patent CN1261671C discloses a kind of one-way locking method of rod component, by the rod component edge of measurement
Up big and down small conial channel put down downwards, in the conial channel be equipped at least two rolling element, the rolling
Body keeps down the trend of movement in the conial channel；When rod component loses pull-up control, and fortune downwards under the condition of self-weight
When dynamic, rolling element is rolled with rod component along the tapered wall of pyramidal pathways downwards, when the distance between rolling element is less than bar
When the minimum outline of shape component, rod component is clamped using frictional force between rolling element and rod component, prevents rod component
It slides downwards.But the locking device also needs boiled water pyramidal pathways, structure is more complicated, the higher cost in processing and manufacturing.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of rod piece one-way lockings
Device realizes rod piece axial quick, timely, any position locking and unlock.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of rod piece unilateral locking device, including pivoted housing, rear axle housing, front shaft sleeve, the rear axle housing are in the front shaft sleeve
Concentric tandem docking, described turn is set on outside the rear axle housing and the front shaft sleeve, with the rear axle housing and the front axle
Set is rotatably connected.
Active catch pole socket is evenly equipped on the periphery of the front shaft sleeve, installation activity bar in the active catch pole socket.
The front shaft sleeve is evenly equipped with several boss relative to another side end face of connection rear axle housing, which radially opens
There are columned compression bar slot, compression bar slot complete penetration front axle jacket wall.
The slot bottom of the compression bar slot is equipped with the necking for placing reset spring, and the reseting spring sleeve is placed in compression bar on compression bar
In slot.
The compression bar is ladder shaft-like compression bar, and axial ends is semicircle spherical shape.
The rear axle housing is identical as front shaft sleeve diameter, and axle center, which is overlapped, places, it is corresponding with front shaft sleeve boss it is uniformly distributed have card slot,
The boss cooperation of front shaft sleeve is placed in card slot, and pressing plate one end and card slot one end form revolute pair, and pressing plate can be above and below groove position
Rotation；The non-card slot end of rear axle housing is to be coupled the position of pivoted housing in ladder shaft-like, has detachable retaining ring to limit after pivoted housing installation
It is moved axially, and has axial gap between retaining ring and pivoted housing.
The compression bar and pressing plate contact jaw diameter are greater than the other end, which is reset spring installation site.
The pivoted housing inner circumferential has what circumferentially diameter reduced gradually to open boss, this gradually opens the card slot on boss and the rear axle housing
Corresponding, rotation pivoted housing, which changes pressing plate and axial angle, pivoted housing front end by boss, the bar slot for being matched with rod size, pivoted housing
Rear end is end cap closed, and end cap central is provided with the hole for being matched with rear axle housing rigging position.
The front end of the pivoted housing is equipped with bar slot, and the size of the bar slot is matched with the active retaining rod.
The compression bar is placed in compression bar slot, and pressing plate compresses compression bar and compression bar is contacted with rod piece, compression bar and rod piece institute energy
Maximum force of sliding friction is provided and is greater than the mobile pulling force of rod piece, the mobile pulling force of rod piece and platen pressure, frictional force are caused by compression bar
Torque is zero, and the axial direction of rod piece is just locked.
After the pressing plate compresses compression bar, pressing plate and axial angle are less than the lock corner calculated by coefficient of friction, by front axle
Bar dials in bar slot on set, guarantees pivoted housing boss clamping platen without turning round.When unlock, active retaining rod is dialled
It opens, revolution pivoted housing can unlock.
Compared with prior art, the invention has the following advantages that
(1) locking that the axial set direction of rod piece is realized using pivoted housing rotation, can be quick, and the latching of any position is axial
Position.
(2) unlock only needs that pivoted housing is simply gone back to certain angle, convenient and efficient.
(3) it can be suitable for being less than the more of sleeve diameter according to adjusting for compression bar length, pressing plate length and pivoted housing radius
Kind size rod piece locking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of rod piece unilateral locking device；
Fig. 2 is the schematic diagram of front shaft sleeve；
Fig. 3 is the schematic diagram of rear axle housing；
Fig. 4 is the schematic diagram of pressing plate；
Fig. 5 is the schematic diagram of compression bar；
Fig. 6 is the schematic diagram of pivoted housing.
In figure, 1- pressing plate, 2- gradually opens boss, 3- pivoted housing, 4- bar slot, 5- active retaining rod, 6- reset spring, 7- active catch
Pole socket, 8- rear axle housing, 9- front shaft sleeve, 10- compression bar, 11- compression bar slot, 12- necking, 13- pressing plate turn hole, 14- pivoted housing installation position,
15- retaining ring, 16- pressing plate shaft, 17- pivoted housing mounting hole, 18- boss, 19- card slot.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment 1
A kind of rod piece unilateral locking device, structure is as shown in Figure 1, before including an external pivoted housing 3 and internal engagement
Axle sleeve 9, rear axle housing 8 have compression bar slot 11 on front shaft sleeve 9, have reset spring 6 and compression bar 10 that can be put into slot, be equipped on rear axle housing 8
Mobilizable pressing plate 1 has active retaining rod 5 on front shaft sleeve 9, there is the bar slot 4 of corresponding position on pivoted housing 3.
The structure of front shaft sleeve 9 as shown in Fig. 2, its relative to connection rear axle housing another side end face it is uniformly distributed have a fixed number
The boss 18 of amount is radially provided with columned compression bar slot 11,11 complete penetration front axle jacket wall of compression bar slot in boss 18, and slot bottom has
For placing reset spring 6,6 sets of reset spring are placed in slot on compression bar 10, are evenly equipped with work on the periphery of front shaft sleeve 9 for necking 12
Dynamic bar seat 7, and there is active retaining rod 5 to be mounted above.
As shown in figure 3, the rear axle housing 8 used is identical as the diameter of front shaft sleeve 9, axle center is overlapped places the structure of rear axle housing 8,
With 18 corresponding position of boss of front shaft sleeve 9 it is uniformly distributed have a card slot 19, the cooperation of boss 18 of front shaft sleeve 9 is placed in card slot 19, pressing plate 1
Structure as shown in figure 4, one end be equipped with pressing plate shaft 16, on card slot 19 be arranged pressing plate turn hole 13 connect and formed revolute pair,
Pressing plate 1 can be rotated upwardly and downwardly in 19 position of card slot；The non-card slot end of rear axle housing 8 is the pivoted housing for being coupled pivoted housing 3 in ladder shaft-like
Installation position 14, pivoted housing 3 have dismountable retaining ring 15 to limit its axial movement, have axial gap between retaining ring 15 and pivoted housing 3 after installing.
The structure of pivoted housing 3 is gradually opened convex as shown in fig. 6, the inner circumferential in pivoted housing 3 has what circumferentially diameter reduced gradually to open boss 2
Platform 2 is corresponding with the card slot 19 on rear axle housing 8, rotates pivoted housing 3, changes pressing plate 1 and axial angle by gradually opening boss 2, pivoted housing 3
There is the bar slot 4 for being matched with rod size in front end, and pivoted housing rear end is end cap closed, and end cap central, which is provided with, is matched with rear axle suit
Pivoted housing mounting hole 17 with position.
As shown in figure 5, the axial ends of compression bar 10 is semicircle spherical shape, compression bar 10 contacts the structure of compression bar 10 with pressing plate 1
Hold diameter big compared with the other end, diameter small end is reset spring installation site.
Compression bar 10 is placed in compression bar slot 11, and pressing plate 1 compresses compression bar 10 and compression bar 10 is contacted with rod piece, compression bar 10 and rod piece
Maximum force of sliding friction be can be provided greater than the mobile pulling force of rod piece, the mobile pulling force of rod piece and platen pressure, frictional force make compression bar
At torque be zero, the axial direction of rod piece is just locked.
After pressing plate 1 compresses compression bar 10, pressing plate 10 and axial angle are less than the lock corner calculated by coefficient of friction, by front shaft sleeve
On bar dial in bar slot, guarantee pivoted housing boss clamping platen without turning round.When unlock, active retaining rod is pushed aside,
Revolution pivoted housing can unlock.
The front shaft sleeve 9 of rod piece unilateral locking device, the internal diameter of rear axle housing 8 are the full-size for locking rod piece diameter, device
It is applicable to the sizes rod piece less than this diameter, rod piece moves axially direction from front shaft sleeve 9 to rear axle housing 8, reaches set
When position, pivoted housing 3 is rotated, 2 clamping platen 1 of You Jiankai boss then compresses compression bar 10, and compression bar 10 is contacted with rod piece, at this time pressing plate
1 is less than friction lock angle with axial angle, and rod piece is fixed locking, active retaining rod 5 is toggled it in bar slot 4, keeps lock
Tightly.When unlock, bar 5 being pushed aside, turning round pivoted housing 3, reset spring 6 bounces compression bar 10, and rod piece is i.e. removable.
Embodiment 2
The present embodiment be rod piece unilateral locking device an application example, by rod piece unilateral locking device front shaft sleeve 9, after
Axle sleeve 8 is fixedly connected with laparoscope clamp claw beam housing, when surgical procedure, when binding clip grip tissue, rotates 3 locking pliers of pivoted housing
Bar can keep binding clip clamped condition, stir the revolution that active retaining rod 5 arrives 4 internal resistance rotation stop of bar slot set, five at pliers grip of performing the operation
Referring to can no longer applied force.
In the description of the present invention, it is to be understood that, indicating positions or the position such as term, " front end ", " periphery ", " side "
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the component or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The above-mentioned description to embodiment is for ease of ordinary skill in the art to understand and use the invention.It is ripe
The personnel for knowing art technology obviously easily can make various modifications to these embodiments, and general original described herein
It ought to use in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, this field
Technical staff's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in guarantors of the invention
Within the scope of shield.
Claims (9)
1. a kind of rod piece unilateral locking device, which is characterized in that including pivoted housing (3), rear axle housing (8), front shaft sleeve (9),
The rear axle housing (8) and the front shaft sleeve (9) are in concentric tandem docking,
The pivoted housing (3) setting the rear axle housing (8) and the front shaft sleeve (9) outside, with the rear axle housing (8) and the front axle
Set (9) is rotatably connected.
2. a kind of rod piece unilateral locking device according to claim 1, which is characterized in that the periphery of the front shaft sleeve (9)
On be evenly equipped with active catch pole socket (2), the interior installation activity bar (5) of the active catch pole socket (2).
3. a kind of rod piece unilateral locking device according to claim 1, which is characterized in that the front shaft sleeve (9) relative to
Another side end face of connection rear axle housing (8) is evenly equipped with several boss (18), which is radially provided with columned pressure
Bar slot (11).
4. a kind of rod piece unilateral locking device according to claim 3, which is characterized in that the slot bottom of the compression bar slot (11)
Equipped with the necking (12) for placing reset spring (6), the reset spring (6), which covers, to be placed in compression bar slot (11) on compression bar (10).
5. a kind of rod piece unilateral locking device according to claim 4, which is characterized in that the compression bar (10) is multi-diameter shaft
Shape compression bar, axial ends are semicircle spherical shape.
6. a kind of rod piece unilateral locking device according to claim 5, which is characterized in that the rear axle housing (8) is equipped with
Card slot (19), the boss (18) being arranged on the front shaft sleeve (9) are equipped in the card slot (19), card slot (19) one end
Equipped with rotatable pressing plate (1).
7. a kind of rod piece unilateral locking device according to claim 6, which is characterized in that the compression bar (10) and pressing plate
(1) contact jaw diameter is greater than the other end.
8. a kind of rod piece unilateral locking device according to claim 6, which is characterized in that pivoted housing (3) inner circumferential has edge
What circumferential diameter reduced gradually opens boss (2), and it is corresponding with card slot (19) on the rear axle housing (8) that this gradually opens boss (2).
9. a kind of rod piece unilateral locking device according to claim 2, which is characterized in that the front end of the pivoted housing (3) is set
There are bar slot (4), the size of the bar slot (4) is matched with the active retaining rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910818263.6A CN110439901A (en) | 2019-08-30 | 2019-08-30 | A kind of rod piece unilateral locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910818263.6A CN110439901A (en) | 2019-08-30 | 2019-08-30 | A kind of rod piece unilateral locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110439901A true CN110439901A (en) | 2019-11-12 |
Family
ID=68438621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910818263.6A Pending CN110439901A (en) | 2019-08-30 | 2019-08-30 | A kind of rod piece unilateral locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110439901A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166427A (en) * | 2020-03-21 | 2020-05-19 | 西安交通大学医学院第一附属医院 | Thyroid minimally invasive surgery forceps |
| CN111807465A (en) * | 2020-07-18 | 2020-10-23 | 常德市俊德科技发展有限公司 | Oil and slag removing device for sewage treatment tank |
| WO2022052237A1 (en) * | 2020-09-11 | 2022-03-17 | 杭州键嘉机器人有限公司 | End effector |
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| CN203089361U (en) * | 2013-01-29 | 2013-07-31 | 杭州好克光电仪器有限公司 | Disinfection conversion connector |
| CN104358973A (en) * | 2014-10-13 | 2015-02-18 | 徐新华 | Multi-angle liquid crystal display positioning bracket |
| CN204893893U (en) * | 2015-09-15 | 2015-12-23 | 宁波博尔富泳池设备有限公司 | Swimming pool is handle for cleaning device |
| CN107552708A (en) * | 2017-08-21 | 2018-01-09 | 河南鑫安利安全科技股份有限公司 | One kind forging safety device |
| CN210686578U (en) * | 2019-08-30 | 2020-06-05 | 上海理工大学 | One-way locking device of rod piece |
-
2019
- 2019-08-30 CN CN201910818263.6A patent/CN110439901A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203089361U (en) * | 2013-01-29 | 2013-07-31 | 杭州好克光电仪器有限公司 | Disinfection conversion connector |
| CN104358973A (en) * | 2014-10-13 | 2015-02-18 | 徐新华 | Multi-angle liquid crystal display positioning bracket |
| CN204893893U (en) * | 2015-09-15 | 2015-12-23 | 宁波博尔富泳池设备有限公司 | Swimming pool is handle for cleaning device |
| CN107552708A (en) * | 2017-08-21 | 2018-01-09 | 河南鑫安利安全科技股份有限公司 | One kind forging safety device |
| CN210686578U (en) * | 2019-08-30 | 2020-06-05 | 上海理工大学 | One-way locking device of rod piece |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166427A (en) * | 2020-03-21 | 2020-05-19 | 西安交通大学医学院第一附属医院 | Thyroid minimally invasive surgery forceps |
| CN111807465A (en) * | 2020-07-18 | 2020-10-23 | 常德市俊德科技发展有限公司 | Oil and slag removing device for sewage treatment tank |
| WO2022052237A1 (en) * | 2020-09-11 | 2022-03-17 | 杭州键嘉机器人有限公司 | End effector |
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