CN211460120U - Two-way bending snake bone of endoscope - Google Patents
Two-way bending snake bone of endoscope Download PDFInfo
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- CN211460120U CN211460120U CN201922453129.9U CN201922453129U CN211460120U CN 211460120 U CN211460120 U CN 211460120U CN 201922453129 U CN201922453129 U CN 201922453129U CN 211460120 U CN211460120 U CN 211460120U
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Abstract
The utility model relates to a bidirectional bending snake bone of an endoscope, which comprises a front section ring, a rear section ring and a middle section ring connected between the front section ring and the rear section ring, one end of the front section ring is provided with a rear elastic clamping shaft head which is provided with a rear elastic groove or a rear elastic through hole, two ends of each middle section ring are respectively provided with a first elastic clamping shaft head and a second connecting lug clamping ring, the first elastic clamping shaft head is provided with a first elastic groove or a first elastic through hole, one end of the rear section ring is provided with a front connecting lug snap ring, the rear elastic snap shaft head of the front section ring is clamped in the second connecting lug snap ring of the middle section ring adjacent to the front section ring, the first elastic clamping shaft head of the middle section ring adjacent to the rear section ring is clamped in the front connecting ear clamping ring of the rear section ring, the first elastic clamping shaft head of one middle section ring is clamped in the second connecting ear clamping ring of the other middle section ring, and the device further comprises a camera connecting sleeve, and the camera connecting sleeve is fixedly connected with the other end of the front section ring. The utility model discloses need not the rivet riveting, and production efficiency is high, and low in production cost.
Description
Technical Field
The utility model relates to a snake bone device, in particular to a two-way bending snake bone of a medical flexible endoscope, belonging to the technical field of medical instruments.
Background
In order to realize head bending and direction changing of the existing endoscope, a metal snake bone joint is arranged in the endoscope, the metal snake bone joint is bent by pulling a control line connected with the metal snake bone joint, the metal snake bone joint is connected with each other by connecting shafts of joints of each section and then axially rotates to work, a shaft with the same direction has positive and negative bending, the positive and negative bending of two shaft planes which are vertical to each other at the two shafts respectively has two-direction bending, and the bending angle of two directions is obtained and is generally called as the bending angle of two directions of an upper direction and a lower direction.
The snake bone in the prior art comprises a snake bone front section ring, a snake bone middle section ring and a snake bone rear section ring, and the snake bone front section ring, the snake bone middle section ring and the snake bone rear section ring are riveted and connected through rivets in sequence, and due to the rivet riveting connection mode, the structure is complex, the manufacturing cost is high, and the following defects are easy to occur:
firstly, the riveting position of the knuckle ring in the snake bone is deformed if the riveting tool and the axis of the rivet are not on the same axis or the riveting force is too large;
secondly, in the riveting process, if the riveting pressure is too high, the surface of the workpiece is easily damaged or the rivet is deformed or the rivet head is cracked;
thirdly, the riveted workpiece is easy to have the phenomenon of incomplete riveting or insufficient firmness in riveting; therefore, the riveting process of workers has high skill requirements, so that the production efficiency is low, the situation that the riveting quality is not qualified is easy to occur, the phenomenon that rivets fall off sometimes occurs, the defects of final finished products are more, the rejection rate is high, and the production cost is high.
Disclosure of Invention
The utility model aims at: provides a two-way bending snake bone of an endoscope, which has simple structure, high production efficiency and low production cost, and does not need rivet riveting.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a two-way crooked snake bone of endoscope, includes anterior segment circle, back segment circle and connects in a plurality of middle segment circle between anterior segment circle and back segment circle, and its innovation point lies in:
one end of the front section ring is provided with a rear elastic clamping shaft head which is provided with a rear elastic groove or a rear elastic through hole which are arranged along the axial direction of the front section ring, the inner wall of the front section ring is provided with two first steel wire rope through holes which are uniformly arranged along the circumferential direction of the front section ring,
a first elastic clamping shaft head and a second connecting lug clamping ring are respectively arranged at two ends of each middle section ring, the first elastic clamping shaft head is provided with a first elastic groove or a first elastic through hole which is arranged along the axial direction of the first elastic clamping shaft head, the inner wall of each middle section ring is provided with two second steel wire rope through holes which are uniformly arranged along the circumferential direction of the middle section ring,
one end of the rear section ring is provided with a front connecting lug clamping ring,
the rear elastic clamping shaft head of the front section ring is clamped in the second connecting ear clamping ring of the middle section ring adjacent to the front section ring, the first elastic clamping shaft head of the middle section ring adjacent to the rear section ring is clamped in the front connecting ear clamping ring of the rear section ring, the first elastic clamping shaft head of one middle section ring is clamped in the second connecting ear clamping ring of the other middle section ring adjacent to the middle section ring,
the camera connecting sleeve is fixedly connected with the other end of the front joint ring.
In the above technical solution, the first elastic chuck head of the middle joint ring has a cross-shaped first elastic groove or a cross-shaped first elastic through hole, and the first elastic groove or the first elastic through hole equally divides the first elastic chuck head into four parts.
In the above technical scheme, the first elastic chuck head of the middle joint ring is provided with a first elastic groove in a straight shape or a first elastic through hole in a straight shape, and the first elastic groove or the first elastic through hole equally divides the first elastic chuck head into two parts.
In the technical scheme, the rear elastic clamping shaft head of the front section ring is provided with a cross-shaped rear elastic groove or a cross-shaped rear elastic through hole, and the rear elastic groove or the rear elastic through hole equally divides the rear elastic clamping shaft head into four parts.
In the above technical solution, the rear elastic clamping shaft head of the front joint ring has a straight rear elastic groove or a straight rear elastic through hole, and the rear elastic groove or the rear elastic through hole equally divides the rear elastic clamping shaft head into two parts.
In the above technical solution, the camera connecting sleeve has a key groove arranged along an axial direction thereof for being fitted with the camera.
In the technical scheme, one end of the middle section ring is provided with a first connecting lug which is integrated with the middle section ring, and the first connecting lug is provided with a first elastic clamping shaft head which is integrated with the first connecting lug.
In the technical scheme, one end of the front section ring is provided with a rear connecting lug which is integrated with the front section ring, and the rear connecting lug is provided with a rear elastic clamping shaft head which is integrated with the rear connecting lug.
In the technical scheme, an arc-shaped front wire retaining plate integrated with the front section ring is arranged on the inner side wall of the front section ring, and a cavity defined by the arc-shaped front wire retaining plate and the side wall of the front section ring forms an axial first steel wire rope through hole; the inner side wall of the middle section ring is provided with an arc middle wire retaining plate which is integrated with the middle section ring, and a cavity enclosed by the arc middle wire retaining plate and the side wall of the middle section ring forms an axial second steel wire rope through hole.
The utility model discloses the positive effect who has is: after the two-way bending snake bone of the endoscope of the utility model is adopted, because one end of the front section ring of the endoscope is provided with a rear elastic clamping shaft head which is provided with a rear elastic groove or a rear elastic through hole which are arranged along the axial direction, the inner wall of the front section ring is provided with two first steel wire rope perforation holes which are evenly arranged along the circumferential direction, the two ends of each middle section ring are respectively provided with a first elastic clamping shaft head and a second connecting lug snap ring, the first elastic clamping shaft head is provided with a first elastic groove or a first elastic through hole which are arranged along the axial direction, the inner wall of the middle section ring is provided with two second steel wire rope perforation holes which are evenly arranged along the circumferential direction, one end of the rear section ring is provided with a front connecting snap ring ear, the rear elastic clamping shaft head of the front section ring is clamped in the second connecting lug snap ring of the middle section ring which is adjacent to the middle section ring, the first elastic clamping shaft head of the middle section ring which is adjacent to the rear section ring is clamped in the front connecting lug snap ring of the rear section, the first elastic clamping shaft head of one middle section ring is clamped in the second connecting ear clamping ring of the other adjacent middle section ring, the utility model replaces the structure that each part of the snake bone device in the prior art is connected into a whole by rivets, overcomes the defect of the riveting structure in the prior art, not only reduces the production cost on the premise of ensuring the use quality and improves the production efficiency, but also ensures the matching size when the elastic clamping shaft head is connected with the connecting ear ring, can effectively ensure the flexibility of the bend angle after the snake bone is connected, and can not cause the defects of serious head deviation after the bend angle due to the large friction force or the overlarge gap when the size gap is too small;
because the utility model discloses still include the camera adapter sleeve, the other end fixed connection of camera adapter sleeve and preceding festival circle, like this, the convenience joins in marriage the dress with camera and camera adapter sleeve mutually in the use, is convenient for fix the camera.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of the first front segment of FIG. 1;
FIG. 3 is a schematic right-side view of FIG. 2;
FIG. 4 is an enlarged schematic view of section A of FIG. 1;
FIG. 5 is a schematic structural view of a first middle joint ring of the present invention;
FIG. 6 is a schematic cross-sectional view B-B of FIG. 5;
FIG. 7 is a schematic right side view of FIG. 5;
FIG. 8 is a schematic view of the construction of the back knuckle in FIG. 1;
FIG. 9 is a schematic left side view of FIG. 8;
fig. 10 is a schematic structural view of the camera connecting sleeve in fig. 1;
FIG. 11 is a schematic structural view of a second front segment ring of the present invention;
FIG. 12 is a schematic structural view of a second intermediate ring according to the present invention;
fig. 13 is a schematic structural view of a second embodiment of the present invention;
FIG. 14 is an enlarged schematic view of section C of FIG. 13;
FIG. 15 is a schematic structural view of a third front knuckle ring of the present invention;
fig. 16 is a schematic structural view of a third middle pitch ring of the present invention;
FIG. 17 is a schematic cross-sectional view D-D of FIG. 16;
FIG. 18 is a schematic structural view of a fourth front knuckle ring of the present invention;
fig. 19 is a schematic structural view of a fourth middle pitch ring of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but is not limited thereto.
Example 1
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, a two-way bending snake bone of an endoscope comprises an anterior segment 1, a posterior segment 3 and a plurality of middle segments 2 connected between the anterior segment 1 and the posterior segment 3,
one end of the front ring 1 is provided with a rear elastic clamping shaft head 11, the rear elastic clamping shaft head 11 is provided with a rear elastic groove 111 arranged along the axial direction of the rear elastic clamping shaft head, the inner wall of the front ring 1 is provided with two first steel wire rope through holes 12 uniformly arranged along the circumferential direction of the front ring,
a first elastic clamping shaft head 21 and a second connecting lug clamping ring 22 are respectively arranged at two ends of each middle section ring 2, the first elastic clamping shaft head 21 is provided with a first elastic groove 211 which is arranged along the axial direction of the first elastic clamping shaft head, the inner wall of each middle section ring 2 is provided with two second steel wire rope through holes 23 which are uniformly arranged along the circumferential direction of the middle section ring,
one end of the rear section ring 3 is provided with a front connecting lug clamping ring 31,
the rear elastic clamping shaft head 11 of the front section ring 1 is clamped in the second connecting lug clamping ring 22 of the middle section ring 2 adjacent to the rear section ring, the first elastic clamping shaft head 21 of the middle section ring 2 adjacent to the rear section ring 3 is clamped in the front connecting lug clamping ring 31 of the rear section ring 3, the first elastic clamping shaft head 21 of one middle section ring 2 is clamped in the second connecting lug clamping ring 22 of the other middle section ring 2 adjacent to the middle section ring,
the camera connecting sleeve 4 is further included, and the camera connecting sleeve 4 is fixedly connected with the other end of the front joint ring 1.
As shown in fig. 5, in order to facilitate the first elastic collar head of the middle joint ring to be clamped into the first connecting ear collar of the middle joint ring adjacent to the first elastic collar head of the middle joint ring, the first elastic collar head 21 of the middle joint ring 2 has a cross-shaped first elastic groove 211, and the first elastic groove 211 equally divides the first elastic collar head 21 into four parts. Of course, the structure is not limited thereto,
as shown in fig. 12, the first elastic collar head 21 of the middle joint ring 2 has a first elastic groove 211 in a straight shape, and the first elastic groove 211 equally divides the first elastic collar head 21 into two parts.
As shown in fig. 2, in order to conveniently clamp the rear elastic clamping shaft head of the front section ring into the first connecting ear clamping ring of the adjacent middle section ring, the rear elastic clamping shaft head 11 of the front section ring 1 is provided with a cross-shaped rear elastic groove 111, and the rear elastic groove 111 equally divides the rear elastic clamping shaft head 11 into four parts. Of course, the structure is not limited thereto.
As shown in fig. 11, the rear elastic collar head 11 of the front knuckle ring 1 has a straight rear elastic groove 111, and the rear elastic groove 111 equally divides the rear elastic collar head 11 into two parts.
As shown in fig. 10, in order to fix the camera conveniently, the camera connecting sleeve 4 of the present invention has a key groove 41 arranged along the axial direction thereof for being fitted with the camera. One end of the camera connecting sleeve 4 is provided with a step 42, and the other end of the front section ring 1 is sleeved on the step 42 of the camera connecting sleeve 4 and is welded with the same into a whole.
As shown in fig. 5, 6 and 12, in order to ensure the processing precision and improve the processing efficiency, and make the utility model discloses the structure is simpler, the one end of well festival circle 2 is equipped with rather than each other's first engaging lug 24, be equipped with rather than each other's first elasticity joint spindle nose 21 on the first engaging lug 24.
As shown in fig. 2 and 11, in order to improve the production efficiency and further improve the structure of the present invention, the one end of the front section ring 1 is provided with rear engaging lugs 13 integrated with each other, and the rear engaging lugs 13 are provided with rear elastic clamping shaft heads 11 integrated with each other.
As shown in fig. 3 and 7, in order to facilitate processing of a steel wire rope through hole and subsequent threading of a steel wire rope, an arc-shaped front wire retaining plate 14 integrated with the front wire retaining plate is arranged on the inner side wall of the front ring 1, and a cavity enclosed between the arc-shaped front wire retaining plate 14 and the side wall of the front ring 1 forms an axial first steel wire rope through hole 12; the inner side wall of the middle section ring 2 is provided with an arc middle wire baffle plate 25 which is integrated with the middle section ring 2, and a cavity enclosed by the arc middle wire baffle plate 25 and the side wall of the middle section ring 2 forms an axial second steel wire rope through hole 23. Two cutting grooves are cut on the side walls of the front section ring 1 and the middle section ring 2 in advance in a linear cutting mode, and then the arc-shaped front thread retaining plate 14 of the front section ring 1 and the arc-shaped middle thread retaining plate 25 of the middle section ring 2 are both formed by punching from the outer wall inwards through arc-shaped punching heads.
Example 2
As shown in fig. 13, 14, 15, 16, 17, 18, and 19, embodiment 2 differs from embodiment 1 in that: a two-way bending snake bone of an endoscope, the rear elastic collar head 11 is provided with a rear elastic through hole 112 arranged along the axial direction thereof, and the first elastic collar head 21 is provided with a first elastic through hole 212 arranged along the axial direction thereof.
The first elastic collar head 21 of the middle joint ring 2 has a first elastic through hole 212 having a cross shape as shown in fig. 16 and 17, and the first elastic through hole 212 equally divides the first elastic collar head 21 into four parts.
Of course, the structure is not limited thereto, and as shown in fig. 19, the first elastic collar head 21 of the middle joint ring 2 has a first elastic through hole 212 in a straight shape of a straight line, and the first elastic through hole 212 equally divides the first elastic collar head 21 into two parts.
As shown in fig. 5, the rear elastic collar head 11 of the front knuckle ring 1 has a cross-shaped rear elastic through hole 112, and the rear elastic through hole 112 equally divides the rear elastic collar head 11 into four parts.
Of course, the structure is not limited thereto, and as shown in fig. 18, the rear elastic collar head 11 of the front knuckle 1 has a straight rear elastic through hole 112, and the rear elastic through hole 112 equally divides the rear elastic collar head 11 into two parts.
The other structure of embodiment 2 is the same as embodiment 1.
The utility model discloses an elastic groove that is equipped with on the elasticity joint spindle nose or the elasticity through-hole all is in order to make the elasticity joint spindle nose have certain contractibility, and the convenience is gone into the connection ear snap ring that corresponds with elasticity joint spindle nose card.
The utility model discloses a structure has cancelled the rivet, has cancelled little steel ring, has reached the welding material that little steel ring and snake bone pitch circle are connected, under the prerequisite of having guaranteed snake bone use quality, has improved production efficiency to and reduced manufacturing cost. The structure that each part is connected by the rivet in the prior art is replaced, and the defect of the rivet type snake bone connecting structure is overcome.
The utility model discloses a cooperation size when elasticity joint spindle nose is connected with the engaging lug snap ring, elasticity groove or elasticity through-hole on its elasticity dop, the size is easy control (can control and be being less than or equal to 0.02 mm), the assurance of its size, the effect of bent angle is very nimble after just effectively guaranteeing the snake bone connection. The defects that the friction force is large, the bend angle is inflexible due to the small size gap, or the serious head deviation after the bend angle is caused by the overlarge gap are avoided.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a two-way crooked snake bone of endoscope, includes anterior segment circle (1), back segment circle (3) and connects in a plurality of between anterior segment circle (1) and back segment circle (3) festival circle (2), its characterized in that:
one end of the front section ring (1) is provided with a rear elastic clamping shaft head (11), the rear elastic clamping shaft head (11) is provided with a rear elastic groove (111) or a rear elastic through hole (112) which are axially arranged, the inner wall of the front section ring (1) is provided with two first steel wire rope through holes (12) which are uniformly arranged along the circumferential direction,
a first elastic clamping shaft head (21) and a second connecting lug clamping ring (22) are respectively arranged at two ends of each middle section ring (2), the first elastic clamping shaft head (21) is provided with a first elastic groove (211) or a first elastic through hole (212) which is axially arranged along the first elastic clamping shaft head, the inner wall of each middle section ring (2) is provided with two second steel wire rope through holes (23) which are uniformly arranged along the circumferential direction of the inner wall,
one end of the rear section ring (3) is provided with a front connecting lug clamping ring (31),
the rear elastic clamping shaft head (11) of the front section ring (1) is clamped in the second connecting ear clamping ring (22) of the middle section ring (2) adjacent to the rear section ring (3), the first elastic clamping shaft head (21) of the middle section ring (2) adjacent to the rear section ring (3) is clamped in the front connecting ear clamping ring (31) of the rear section ring (3), the first elastic clamping shaft head (21) of one middle section ring (2) is clamped in the second connecting ear clamping ring (22) of the other middle section ring (2) adjacent to the middle section ring,
the camera connecting sleeve (4) is further included, and the camera connecting sleeve (4) is fixedly connected with the other end of the front joint ring (1).
2. The two-way curved snake bone of an endoscope of claim 1, wherein: the first elastic chuck head (21) of the middle joint ring (2) is provided with a cross-shaped first elastic groove (211) or a cross-shaped first elastic through hole (212), and the first elastic groove (211) or the first elastic through hole (212) equally divides the first elastic chuck head (21) into four parts.
3. The two-way curved snake bone of an endoscope of claim 1, wherein: the first elastic chuck head (21) of the middle-section ring (2) is provided with a first elastic groove (211) in a straight shape or a first elastic through hole (212) in a straight shape, and the first elastic groove (211) or the first elastic through hole (212) equally divides the first elastic chuck head (21) into two parts.
4. The two-way curved snake bone of an endoscope of claim 1, wherein: the rear elastic clamping shaft head (11) of the front knuckle ring (1) is provided with a cross-shaped rear elastic groove (111) or a cross-shaped rear elastic through hole (112), and the rear elastic clamping shaft head (11) is equally divided into four parts by the rear elastic groove (111) or the rear elastic through hole (112).
5. The two-way curved snake bone of an endoscope of claim 1, wherein: the rear elastic clamping shaft head (11) of the front section ring (1) is provided with a straight-line-shaped rear elastic groove (111) or a straight-line-shaped rear elastic through hole (112), and the rear elastic clamping shaft head (11) is equally divided into two parts by the rear elastic groove (111) or the rear elastic through hole (112).
6. The two-way curved snake bone of an endoscope of claim 1, wherein: the camera connecting sleeve (4) is provided with a key groove (41) which is arranged along the axial direction of the camera connecting sleeve and is used for being matched with a camera.
7. The two-way curved snake bone of an endoscope of claim 1, wherein: one end of the middle section ring (2) is provided with a first connecting lug (24) which is integrated with the middle section ring, and the first connecting lug (24) is provided with a first elastic clamping shaft head (21) which is integrated with the first connecting lug.
8. The two-way curved snake bone of an endoscope of claim 1, wherein: one end of the front section ring (1) is provided with a rear connecting lug (13) which is integrated with the front section ring, and the rear connecting lug (13) is provided with a rear elastic clamping shaft head (11) which is integrated with the rear connecting lug.
9. The two-way curved snake bone of an endoscope of claim 1, wherein: an arc front wire retaining plate (14) integrated with the front section ring (1) is arranged on the inner side wall of the front section ring (1), and a cavity enclosed by the arc front wire retaining plate (14) and the side wall of the front section ring (1) forms an axial first steel wire rope through hole (12); the inner side wall of the middle section ring (2) is provided with an arc middle wire baffle plate (25) which is integrated with the middle section ring, and a cavity enclosed by the arc middle wire baffle plate (25) and the side wall of the middle section ring (2) forms an axial second steel wire rope through hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453129.9U CN211460120U (en) | 2019-12-30 | 2019-12-30 | Two-way bending snake bone of endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453129.9U CN211460120U (en) | 2019-12-30 | 2019-12-30 | Two-way bending snake bone of endoscope |
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| Publication Number | Publication Date |
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| CN211460120U true CN211460120U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922453129.9U Active CN211460120U (en) | 2019-12-30 | 2019-12-30 | Two-way bending snake bone of endoscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890737A (en) * | 2020-11-20 | 2021-06-04 | 瑞惜康(苏州)医疗科技有限公司 | Firm in connection's anticreep snake bone |
-
2019
- 2019-12-30 CN CN201922453129.9U patent/CN211460120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890737A (en) * | 2020-11-20 | 2021-06-04 | 瑞惜康(苏州)医疗科技有限公司 | Firm in connection's anticreep snake bone |
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