CN200991289Y - Medical soft shaft with overload protection function - Google Patents
Medical soft shaft with overload protection function Download PDFInfo
- Publication number
- CN200991289Y CN200991289Y CN 200620163930 CN200620163930U CN200991289Y CN 200991289 Y CN200991289 Y CN 200991289Y CN 200620163930 CN200620163930 CN 200620163930 CN 200620163930 U CN200620163930 U CN 200620163930U CN 200991289 Y CN200991289 Y CN 200991289Y
- Authority
- CN
- China
- Prior art keywords
- flexible axle
- output shaft
- bearing
- axle core
- core assembly
- 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.)
- Expired - Lifetime
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model discloses a medical flexible shaft with the function of overload protection. The utility model comprises a flexible shaft pipe groupware, a flexible shaft core groupware, a connecting piece, a shaft block and an output shaft, wherein, the flexible shaft pipe groupware is connected with the shaft block by the connecting piece; the connecting piece is supported on the flexible shaft core groupware by the bearing; the shaft block is supported on the output shaft by the bearing; the flexible shaft core groupware is connected with the inner end of the output shaft through an engaging and disengaging gear and is arranged in the connecting piece; the engaging and disengaging gear can transmit the power of the flexible shaft core groupware to the output shaft or cut off the power of the flexible shaft core groupware and the output shaft. The utility model effectively protects the flexible shaft core, avoids the breaking of the flexible shaft caused by the momentary load increasing, ensures the normal operation as well as comforts the doctor. The utility model has the advantages of simple structure and easy operation, which is suitable for widely supplied.
Description
Technical field
This utility model belongs to technical field of medical instruments, specifically, relates to the medical flexible axle with overload protection function in a kind of power set of performing the operation, and is used for the transmission of power of main frame to carrying out cutter.
Background technology
At present, be used for the performing the operation medical flexible axle of power set transferring power is made of parts such as flexible axle pipe assembly, flexible axle core assembly, connector, bearing block and output shafts.Wherein flexible axle pipe assembly is connected with the threaded one end of connector, and the other end of connector is threaded with bearing block, and flexible axle core and output shaft are coaxial integrative-structure, is connected by the inwall of bearing with connector and bearing block respectively.In order to make the doctor easy to operate and comfortable, flexible axle need satisfy requirements such as size is little, softness, so overload capacity is more weak.(mainly being jam to occur because of output) might twist off the flexible axle core when heavy load occurring suddenly in the operation, and the adverse effect that causes operation not carry out smoothly particularly will directly have influence on the rescue to patient when first aid.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of medical flexible axle with overload protection function.
The technical solution of the utility model is as follows: a kind of medical flexible axle with overload protection function; comprise flexible axle pipe assembly; the flexible axle core assembly; connector; bearing block and output shaft; wherein flexible axle pipe assembly is connected with bearing block by connector; connector is bearing on the flexible axle core assembly by bearing; bearing block is bearing on the output shaft by bearing; its key is: the inner of described flexible axle core assembly and output shaft is connected by clutch; and be positioned at described connector; this clutch can be given output shaft with the transmission of power of flexible axle core assembly, perhaps with the power cut between flexible axle core assembly and the output shaft.
Adopt above technical scheme, clutch is provided with demarcation moment, and when the loading moment of flexible axle core surpassed demarcation moment, clutch skidded, with the power cut between flexible axle core assembly and the output shaft; After loading moment was reduced to below the demarcation moment, clutch was in running order, can realize transmission of power again again, thereby has effectively protected the flexible axle core, had both guaranteed normally carrying out of operation, and it is relieved to allow the doctor operate again.
Preferred scheme is: above-mentioned clutch is made of single awl friction clutch, spring and pressure adjustable ring, the inner cone dish of wherein single awl friction clutch is installed in the inner of flexible axle core assembly by flat key, and the external cone plate of single awl friction clutch is sleeved on the inner of output shaft by the slip flat key, the cone head part of this external cone plate inserts in the groove that is complementary with it on the inner cone dish, described spring kink is in the bar portion of external cone plate, and the two ends of spring are spacing with the pressure adjustable ring that is sleeved on the output shaft by the bottom surface of cone head part respectively.Moment of friction between inside and outside awl dish is produced by the positive pressure of spring, can change the decrement and the elastic force of spring by the thickness that changes pressure adjustment ring, and the setting of being convenient to demarcate moment is like this regulated.
Beneficial effect: this utility model links together flexible axle core assembly and output shaft by clutch; when the loading moment of flexible axle core surpasses demarcation moment; clutch can be with the power fast shut-off between flexible axle core assembly and the output shaft; and after loading moment is reduced to below the demarcation moment; clutch again can be again with the transmission of power of flexible axle core assembly to output shaft; thereby effectively protected the flexible axle core; avoided the flexible axle core to twist off because of momentary load strengthens; when guaranteeing that operation is normally carried out; it is relieved to allow the doctor operate again; has modern design; simple in structure; implement characteristics such as easy, be suitable for promoting the use of on a large scale.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, flexible axle pipe assembly 1 kink and is connected with the threaded one end of connector 3 on flexible axle core assembly 2, is set with support spring 10 on flexible axle pipe assembly 1, takes place sharply crooked with the root of avoiding flexible axle pipe assembly 1.Described connector 3 is bearing on the flexible axle core assembly 2 by bearing 11, and the other end of connector 3 is threaded with bearing block 4.Bearing block 4 is bearing on the output shaft 5 by thrust ball bearing 12 and deep groove ball bearing 13, and deep groove ball bearing 13 is by gland 14 axial restraints that are threaded with bearing block 4, and gland 14 is arranged in the end face groove of bearing block 4.Single inner cone dish 9 of boring friction clutch is installed by flat key in the inner that surpasses bearing 11 at flexible axle core assembly 2, and the torque of flexible axle core is passed on the inner cone dish 9; The external cone plate 8 of single awl friction clutch is sleeved on the inner of output shaft 5 by the slip flat key, and inner cone dish 8 can be slided on output shaft 5 flexibly.External cone plate 8 is made up of cone head part 8a and the 8b of bar portion, and the 8b of bar portion goes up kink spring 6, and an end of spring 6 and pressure adjustable ring 7 butts that are sleeved on the output shaft 5 make 7 pairs of thrust ball bearing 12 axial restraints of pressure adjustable ring; The other end of spring 6 is connected to the bottom surface of cone head part 8a, and under the effect of spring 6, the cone head part 8a of external cone plate 8 inserts in the groove that is complementary with it on the inner cone dish 9.
Can further find out from Fig. 1: the moment of friction that inside and outside awl dish is 9,8 is produced by the positive pressure of spring 6, and pressure adjustment ring 7 is used to demarcate the setting adjusting of moment.When the loading moment of flexible axle core surpassed demarcation moment, clutch external cone plate 8 compression springs 6 left inside and outside awl dish in 9,8 minutes, with the power cut between flexible axle core assembly 2 and the output shaft 5; After loading moment was reduced to demarcation moment, under the elastic force effect of spring 6, inside and outside awl dish 9,8 combinations again of clutch entered power delivery status again.
Claims (2)
1; a kind of medical flexible axle with overload protection function; comprise flexible axle pipe assembly (1); flexible axle core assembly (2); connector (3); bearing block (4) and output shaft (5); wherein flexible axle pipe assembly (1) is connected with bearing block (4) by connector (3); connector (3) is bearing on the flexible axle core assembly (2) by bearing; bearing block (4) is bearing on the output shaft (5) by bearing; it is characterized in that: described flexible axle core assembly (2) is connected by clutch with the inner of output shaft (5); and be positioned at described connector (3); this clutch can be given output shaft (5) with the transmission of power of flexible axle core assembly (2), perhaps with the power cut between flexible axle core assembly (2) and the output shaft (5).
2; medical flexible axle with overload protection function according to claim 1; it is characterized in that: described clutch is by single awl friction clutch; spring (6) and pressure adjustable ring (7) constitute; the inner cone dish (9) of wherein single awl friction clutch is installed in the inner of flexible axle core assembly (2) by flat key; and the external cone plate (8) of single awl friction clutch is sleeved on the inner of output shaft (5) by the slip flat key; the cone head part (8a) of this external cone plate (8) inserts in the groove that is complementary with it on the inner cone dish (9); described spring (6) kink is in the bar portion (8b) of external cone plate, and the two ends of spring (6) are spacing with the pressure adjustable ring (7) that is sleeved on the output shaft (5) by the bottom surface of cone head part (8a) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620163930 CN200991289Y (en) | 2006-12-30 | 2006-12-30 | Medical soft shaft with overload protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620163930 CN200991289Y (en) | 2006-12-30 | 2006-12-30 | Medical soft shaft with overload protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200991289Y true CN200991289Y (en) | 2007-12-19 |
Family
ID=38944362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620163930 Expired - Lifetime CN200991289Y (en) | 2006-12-30 | 2006-12-30 | Medical soft shaft with overload protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200991289Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913536A (en) * | 2011-08-01 | 2013-02-06 | 舒能（苏州）工业技术有限公司 | Flexible shaft apparatus for medical treatment and application thereof |
| CN106517014A (en) * | 2016-12-21 | 2017-03-22 | 山东钢铁股份有限公司 | Winching equipment |
| CN107708582A (en) * | 2015-08-10 | 2018-02-16 | 索尼公司 | Medicine equipment and surgery systems |
| CN112494079A (en) * | 2019-09-16 | 2021-03-16 | 李升锦 | Spiral sampling puncture biopsy needle |
-
2006
- 2006-12-30 CN CN 200620163930 patent/CN200991289Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913536A (en) * | 2011-08-01 | 2013-02-06 | 舒能（苏州）工业技术有限公司 | Flexible shaft apparatus for medical treatment and application thereof |
| CN107708582A (en) * | 2015-08-10 | 2018-02-16 | 索尼公司 | Medicine equipment and surgery systems |
| CN106517014A (en) * | 2016-12-21 | 2017-03-22 | 山东钢铁股份有限公司 | Winching equipment |
| CN112494079A (en) * | 2019-09-16 | 2021-03-16 | 李升锦 | Spiral sampling puncture biopsy needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071219 |
|
| EXPY | Termination of patent right or utility model |