CN204427990U - Without the endoscope bending mechanism of rivet joint - Google Patents
Without the endoscope bending mechanism of rivet joint Download PDFInfo
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- CN204427990U CN204427990U CN201520008184.6U CN201520008184U CN204427990U CN 204427990 U CN204427990 U CN 204427990U CN 201520008184 U CN201520008184 U CN 201520008184U CN 204427990 U CN204427990 U CN 204427990U
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- bending mechanism
- circle
- ear
- main body
- circular hole
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Abstract
The utility model discloses the endoscope bending mechanism without rivet joint, this endoscope bending mechanism comprises main body framework (1), netting and rubber overlay film (2), draught line (3), at main body framework (1) outer cladding one deck netting and overlay film rubber (2), main body framework (1) interior cross-under some draught lines (3), the overall endoscope bending mechanism formed without rivet joint.This utility model connects ear by circle on coupling ring and to connect with the imperfect circular hole of adjacent coupling ring and form revolute pair, all coupling rings are formed through cutting by a thin-wall circular tube, eliminate the punching press of connection ear and the riveted joint assembly work of traditional connecting mode, rotate flexibly, dimensional accuracy, quality of fit are high, design, processing, assembling facility, remarkably productive in the bending mechanism of pipe with small pipe diameter, many bending directions manufactures.
Description
Technical field
This utility model relates to a kind of endoscope bending mechanism without rivet joint, belongs to medical treatment/industrial endoscope technical field.
Background technology
At present, the bending mechanism of endoscope's end of probe is by bending coupling ring, rivet, draught line, netting, rubber overlay film composition, and by rivet joint between coupling ring, under the control of draught line, adjacent segment relatively rotates around rivet axis.Because amount of articulation is many, physical dimension is little, need a large amount of mould, fixture, complex process when processing, assembling, be difficult to prepare high-precision bending mechanism by lower cost.
Summary of the invention
This utility model object is: provide a kind of endoscope bending mechanism without rivet joint, remove the punching press of connection ear and the riveted joint assembly work of traditional connecting mode from, this bending mechanism rotates flexibly, dimensional accuracy, quality of fit are high, design, processing, assembling facility, the manufacturing process solving existing bending mechanism is numerous and diverse, precision is difficult to problems such as ensureing, production cost is high, is especially convenient to the bending mechanism manufacturing pipe with small pipe diameter, many bending directions.
This utility model solves the technical scheme that its technical problem adopts: this endoscope bending mechanism comprises main body framework, netting and rubber overlay film, draught line, one deck netting of main body framework outer cladding and overlay film rubber, cross-under some draught lines in main body framework, the overall endoscope bending mechanism formed without rivet joint.
Wherein, main body framework cuts into some coupling rings connecting successively by a thin-wall circular tube, and coupling ring comprises some pull rings of the front end circle at two ends, rear end circle and centre; The left end wall of front end circle distributes some circular holes, radially symmetrical two of the right-hand member of front end circle circular connects ears or two imperfect circular holes, and there is the composition surface that forms an angle with the normal plane of axis the right side of front end circle connects ear or imperfect circular hole symmetry about circle; The right-hand member internal face of rear end circle distributes some guiding ribs, radially symmetrical two the imperfect circular holes of left end of rear end circle or two circular connect ears, and there is the composition surface that forms an angle with the normal plane of axis the left side of rear end circle connects ear or imperfect circular hole symmetry about circle; Radially symmetrical two the imperfect circular holes of left end of pull ring or two circular connection ears, radially symmetrical two the circular connection ears of right-hand member of pull ring or imperfect circular hole, the left side of pull ring and right side have the composition surface that forms an angle with the normal plane of axis respectively and connect ear about the circle of respective side edge or imperfect circular hole is symmetrical, and the internal face of pull ring distributes some guiding ribs; Front end circle, rear end circle and centre some pull rings connect ear by circle, imperfect circular hole is interconnected integrally, draught line through rear end circle and centre some pull rings guiding rib the circular hole that front end enclose pass and be welded on front end enclose on.
Wherein, front end circle, rear end circle and centre some pull rings connect ear by circle, imperfect circular hole is interconnected and forms revolute pair, by the quantity of the structure of coupling ring, compound mode, draught line change obtain compound bending, four-way bending, six to bending, eight to bending bending mechanism, alternate angle a=360 °/n of coupling ring both sides revolute pair axis
1, n
1for the flexible direction number of bending mechanism.
Wherein, the thin-wall circular tube diameter range 0.6mm-20mm that coupling ring is used, wall thickness range 0.05mm-2mm.
The utility model has the advantages that: between the adjacent coupling ring of main body framework, form revolute pair by construction itself, they are formed by the cutting of a thin-wall circular tube, automatically the revolute pair between adjacent coupling ring is defined while cutting, instead of the rivet joint mode of existing bending mechanism, processing and assembly technology are greatly simplified, and precision is able to significant increase simultaneously.
Accompanying drawing explanation
Fig. 1 is the axonometric drawing of four-way bending mechanism main body framework.
Fig. 2 is the axonometric drawing (in order to express clearly, the overlay film rubber at two ends is cut, and netting is hidden, and overlay film rubber and netting are all hidden in following view) of four-way bending mechanism.
Fig. 3 is the front view of Fig. 2 bending mechanism.
Fig. 4 is the right view of Fig. 2 bending mechanism.
Fig. 5 is the revolute pair structural map of the adjacent coupling ring of Fig. 2.
Fig. 6 is the partial enlarged drawing of front end circle and adjacent pull ring in Fig. 2.
Fig. 7 is the partial enlarged drawing that in Fig. 2, adjacent two pull rings connect.
Fig. 8 is that in Fig. 2, the partial enlarged drawing connected with adjacent pull ring is enclosed in rear end.
Fig. 9 is six to the axonometric drawing of bending mechanism.
Figure 10 is the revolute pair structural map of adjacent two coupling rings in Fig. 9.
In figure: 1. main body framework, 2. netting and overlay film rubber, 3. draught line, 4. front end circle, 5. pull ring, 6. rear end circle, 7. circular hole, 8. circular connection ear, 9. composition surface, 10. guiding rib, 11. imperfect circular holes.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further illustrated.
As Figure 1-10 shows, be four-way bending mechanism; This endoscope bending mechanism comprises main body framework 1, netting and rubber overlay film 2, draught line 3, one deck netting of main body framework 1 outer cladding and overlay film rubber 2, cross-under some draught lines 3 in main body framework 1, the overall endoscope bending mechanism formed without rivet joint.
Wherein, the some coupling rings that main body framework 1 is cut into by a thin-wall circular tube connect and form, and coupling ring comprises some pull rings 5 of the front end circle 4 at two ends, rear end circle 6 and centre; The left end wall of front end circle 4 distributes some circular holes 7, and radially symmetrical two of the right-hand member of front end circle 4 circularly connects ears 8, and there is the composition surface 9 that forms an angle with the normal plane of axis the right side of front end circle 4 connects ear 8 symmetry about circle; The right-hand member internal face of rear end circle 6 distributes some guiding ribs 10, and radially symmetrical two of the left end of rear end circle 6 circularly connects ears 8, and there is the composition surface 9 that forms an angle with the normal plane of axis the left side of rear end circle 6 connects ear 8 symmetry about circle; Radially symmetrical two the circular connection ears 8 of left end of pull ring 5, radially symmetrical two the circular connection ears 8 of right-hand member of pull ring 5, the left side of pull ring 5 and right side have the composition surface 9 that forms an angle with the normal plane of axis respectively and connect ear 8 symmetry about respective side edge circle, and the internal face of pull ring 5 distributes some guiding ribs 10; Some pull rings 5 of front end circle 4, rear end circle 6 and centre connect ear 8, imperfect circular hole 11 by circle and are interconnected integrally, the guiding rib 10 that draught line 3 passes some pull rings 5 of rear end circle 6 and centre passes at the circular hole 7 of front end circle 4 and is welded on front end circle 4, and the alternate angle of arbitrary coupling ring both sides revolute pair axis is 180 °.
In figure 6, two circular ears 8 that connect that front end circle 4 is distributed by radial symmetric are connected with the imperfect circular hole 11 on the left of pull ring, and form revolute pair, when forwarding extreme position to, fit with the left side of pull ring in the composition surface 9 of front end circle.
In Figure 5, a
2angle represents circular and connects the one-sided angle rotatable of ear in imperfect circular hole, a
1angle represents the one-sided inclination angle on composition surface on front end circle, rear end circle and pull ring, size and a
2equal; a
1, a
2the size of angle determines the crooking ability of bending mechanism, by adjustment a
1, a
2the size of angle and the quantity of coupling ring, axial length can adjust the bent angle size of bending mechanism.
In the figure 7, pull ring is connected with adjacent pull ring by two circular ears that connect that left radial is symmetrical, and two circular the connect ears symmetrical by right radial connect with adjacent pull ring, and structure and the principle on composition surface are consistent with Fig. 5.
In fig. 8, two of enclosing in two imperfect circular holes that pull ring is distributed by radial symmetric and rear end are circular to be connected ear and connects, formation revolute pair, its structure and principle consistent with Fig. 5 Suo Shi.
As shown in Fig. 9,10, be six to bending mechanism; Front end circle, some groups of intermediate connecting rings (pull ring A, pull ring B, pull ring C are a group), rear end circles connect formation main body framework successively; Coated one deck netting and overlay film rubber (being concealed in figure) outside main body framework; Main body framework inside is installed with six roots of sensation draught line.
In Fig. 10, a
3angle represents that the one-sided maximal phase of adjacent bond circle is to inclination angle, a
4angle represents the one-sided angle rotatable of round ear in hole, size and a
3equal; a
3, a
4the size of angle determines the crooking ability of bending mechanism; The revolute pair axis alternate angle of arbitrary coupling ring both sides is 120 °.
Claims (4)
1. without the endoscope bending mechanism of rivet joint, it is characterized in that: this endoscope bending mechanism comprises main body framework (1), netting and rubber overlay film (2), draught line (3), at main body framework (1) outer cladding one deck netting and overlay film rubber (2), main body framework (1) interior cross-under some draught lines (3), the overall endoscope bending mechanism formed without rivet joint.
2. the endoscope bending mechanism without rivet joint according to claim 1, it is characterized in that: some coupling rings that main body framework (1) is cut into by a thin-wall circular tube connect and form, coupling ring comprises some pull rings (5) that (4) are enclosed in front end, (6) and centre are enclosed in rear end at two ends; The left end wall of front end circle (4) distributes some circular holes (7), radially symmetrical two of the right-hand member of front end circle (4) circular connects ear (8) or imperfect circular hole (11), and there is the composition surface (9) that forms an angle with the normal plane of axis the right side of front end circle (4) connects ear (8) or imperfect circular hole (11) symmetry about circle; The right-hand member internal face of rear end circle (6) distributes some guiding ribs (10), radially symmetrical two of the left end of rear end circle (6) circular connects ear (8) or two imperfect circular holes (11), and there is the composition surface (9) that forms an angle with the normal plane of axis the left side of rear end circle (6) about imperfect circular hole (11) or circularly connects ear (8) symmetry; Radially symmetrical two the imperfect circular holes (11) of left end of pull ring (5) or circular connection ear (8), radially symmetrical two circular connections ear (8) of right-hand member of pull ring (5) or imperfect circular hole (11), the left side of pull ring (5) and right side have the composition surface (9) that forms an angle with the normal plane of axis respectively and connect ear (8) about the circle of respective side edge or imperfect circular hole (11) is symmetrical, and the internal face of pull ring (5) distributes some guiding ribs (10); Front end encloses (4), rear end circle (6) and middle some pull rings (5) connect ear (8) by circle, imperfect circular hole (11) is interconnected integrally, and draught line (3) encloses some pull rings (5) of (6) and centre guiding rib (10) through rear end passes at the circular hole 7 of front end circle (4) and is welded on front end circle (4).
3. the endoscope bending mechanism without rivet joint according to claim 2, it is characterized in that: front end circle (4), rear end circle (6) and centre some pull rings (5) connect ear (8) by circle, imperfect circular hole (11) is interconnected and forms revolute pair, by the quantity of the structure of coupling ring, compound mode, draught line change obtain compound bending, four-way bending, six to bending, eight to bending bending mechanism, alternate angle a=360 °/n of coupling ring both sides revolute pair axis
1, n
1for the flexible direction number of bending mechanism.
4. the endoscope bending mechanism without rivet joint according to claim 2, is characterized in that: the thin-wall circular tube diameter range 0.6mm-20mm that coupling ring is used, wall thickness range 0.05mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008184.6U CN204427990U (en) | 2015-01-07 | 2015-01-07 | Without the endoscope bending mechanism of rivet joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008184.6U CN204427990U (en) | 2015-01-07 | 2015-01-07 | Without the endoscope bending mechanism of rivet joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204427990U true CN204427990U (en) | 2015-07-01 |
Family
ID=53595925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520008184.6U Expired - Fee Related CN204427990U (en) | 2015-01-07 | 2015-01-07 | Without the endoscope bending mechanism of rivet joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204427990U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605805A (en) * | 2015-01-07 | 2015-05-13 | 淮阴工学院 | Endoscope bending mechanism free of rivet connection |
| CN108553071A (en) * | 2018-05-17 | 2018-09-21 | 黄琴 | Controllable bending curved tube structure |
-
2015
- 2015-01-07 CN CN201520008184.6U patent/CN204427990U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605805A (en) * | 2015-01-07 | 2015-05-13 | 淮阴工学院 | Endoscope bending mechanism free of rivet connection |
| CN108553071A (en) * | 2018-05-17 | 2018-09-21 | 黄琴 | Controllable bending curved tube structure |
| CN108553071B (en) * | 2018-05-17 | 2024-05-17 | 黄琴 | Controllable bending pipe structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20160107 |