Snake bone section ring, snake bone and endoscope

Abstract

The utility model discloses a snake bone section ring, a snake bone and an endoscope, the snake bone section ring comprises a section ring main body, a roller pin and a sleeve, and the peripheral wall is provided with a connecting lug group folded towards the inner cavity of the section ring main body; the roller pin is connected to the connecting lug set, a wire passing groove is defined by the roller pin and the connecting lug set, and a traction steel wire can pass through the wire passing groove. The sleeve is rotatably connected to the roller pin in a sleeving mode and used for supporting the traction steel wire. The connecting lug group is arranged on the joint ring main body to provide a connecting foundation for the roller pin, the sleeve is rotatable, so that a traction steel wire can penetrate through a space defined between the sleeve and the connecting lug group, and the sleeve is rotatable, so that the traction steel wire can generate less abrasion on the sleeve, and the friction force of the traction steel wire is reduced. In other words, sliding friction between the traction steel wire and the wire passing groove is changed into rolling friction between the sleeve and the roller pin, so that the service life of the traction steel wire is prolonged, the service life of the snake bone formed by the snake bone section rings is prolonged, and the reliability of the snake bone is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, in particular to a snake bone segment ring, a snake bone and an endoscope. Background Art

[0002] Most of the current endoscope snake bones are equipped with a wire groove, which is used to pass the traction wire. The wire groove needs to be polished before use to make it smooth, thereby extending the service life of the snake bone. If the wire groove is not polished evenly, the traction wire is still prone to wear and breakage, which is inconvenient to use. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a snake bone node ring, which can avoid grinding the wire groove, and the sleeve provided can reduce the wear of the traction wire.

[0004] The utility model also provides a snake bone with the snake bone node ring.

[0005] The utility model also provides an endoscope with the snake bone.

[0006] According to the first aspect of the utility model, a snake bone node ring includes: a node ring body, a connecting ear group folded toward the inner cavity of the node ring body is arranged on the peripheral wall; a roller needle is connected to the connecting ear group, the roller needle and the connecting ear group define a wire passing groove, and the wire passing groove is used for passing a traction wire; a sleeve is rotatably sleeved on the roller needle, and the sleeve is used to support the traction wire.

[0007] A serpentine node ring according to an embodiment of the utility model has at least the following beneficial effects: the connecting ear group is arranged on the node ring body to provide a connection basis for the roller needle, and the sleeve is rotatable, so the space defined between the sleeve and the connecting ear group can be used for the traction wire to pass through, and because the sleeve is rotatable, the traction wire will produce less wear on the sleeve, that is, the sliding friction between the traction wire and the wire groove is converted into rolling friction between the sleeve and the roller needle, thereby extending the service life of the traction wire, thereby extending the service life of the snake bone formed by the serpentine node ring, and improving the reliability of the snake bone.

[0008] According to some embodiments of the utility model, there are several connecting ear groups, each of which includes two connecting ears, the roller needle is connected between the two connecting ears, and the connecting ear group is for the traction steel wire to pass through. Several connecting ear groups can realize different ways of threading the steel wire, so that the bending ways of the snake bone are different.

[0009] According to some embodiments of the utility model, there are two groups of connecting ear groups, and the two groups of connecting ear groups are symmetrically arranged about the central axis of the node ring body. The symmetrically arranged connecting ear groups can balance the traction force of the traction wire, so that the bending of the snake bone in two directions is better.

[0010] According to some embodiments of the utility model, at least one end of the roller needle is welded to the connecting ear, and the welded roller needle is not easily affected by the traction wire and detached.

[0011] According to some embodiments of the utility model, the sleeve is accommodated between the two connecting ears, and the connecting ears are used to block the end of the sleeve, so that the axial displacement of the sleeve is small, thereby reducing the sliding friction of the sleeve on the traction wire.

[0012] According to some embodiments of the utility model, a process hole is provided on the node ring body, and the process hole is used to insert the roller needle so that the roller needle is plugged into the two connecting ears. The process hole is convenient for plugging and welding the roller needle, and can also reduce the weight of the node ring body.

[0013] A snake bone according to the second aspect of the utility model includes the snake bone node ring, and also includes a first node ring and a tail node ring. The snake bone node ring is provided with a plurality of them, and the plurality of the snake bone node rings are hinged in sequence to form a bone node module. The first node ring is hinged at one end of the bone node module, and the tail node ring is hinged at the other end of the bone node module.

[0014] A snake bone according to an embodiment of the utility model has at least the following beneficial effects: the snake bone has the connecting ear group arranged on the node ring body to provide a connection basis for the roller needle, and the sleeve is rotatable, so the space defined between the sleeve and the connecting ear group can be used for the traction wire to pass through, and because the sleeve is rotatable, the traction wire will produce less wear on the sleeve, that is, the sliding friction between the traction wire and the wire groove is converted into rolling friction between the sleeve and the roller needle, thereby extending the service life of the traction wire, thereby extending the service life of the snake bone composed of the snake bone node rings, and improving the reliability of the snake bone.

[0015] An endoscope according to a third aspect of the present utility model includes the snake bone.

[0016] An endoscope according to an embodiment of the utility model has at least the following beneficial effects: because the endoscope is provided with the connecting ear group on the node ring body, a connection basis is provided for the roller needle, and because the sleeve is rotatable, the space defined between the sleeve and the connecting ear group can be used for the traction wire to pass through, and because the sleeve is rotatable, the traction wire will produce less wear on the sleeve, that is, the sliding friction between the traction wire and the wire groove is converted into rolling friction between the sleeve and the roller needle, thereby extending the service life of the traction wire, thereby extending the service life of the snake bone composed of the snake bone node ring, and improving the reliability of the snake bone.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of the snake bone segment ring of an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A cross-sectional view of the snake bone nodule ring is shown;

[0021] Figure 3 for Figure 1 The schematic diagram of the structure of the snake bone shown is composed of the snake bone segment ring, the first segment ring and the tail segment ring.

[0022] The node ring body 100, the connecting ear group 110, the connecting ear 111, and the process hole 120;

[0023] Needle roller 200, wire groove 210;

[0024] Sleeve 300 , first section ring 400 , tail section ring 500 . DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "more" is two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figures 1 to 3 A snake bone segment ring comprises: a segment ring body 100, on the peripheral wall of which is provided a connecting ear group 110 folded toward the inner cavity of the segment ring body 100; a roller needle 200 connected to the connecting ear group 110, the roller needle 200 and the connecting ear group 110 define a wire groove 210, and the wire groove 210 is used for passing a traction wire; a sleeve 300, rotatably sleeved on the roller needle 200, and the sleeve 300 is used to support the traction wire. A connecting ear group 110 is provided on the node ring body 100 to provide a connection basis for the needle roller 200. The sleeve 300 is rotatable, so the space defined between the sleeve 300 and the connecting ear group 110 can be used for the traction wire to pass through. Because the sleeve 300 can rotate, the traction wire will have less wear on the sleeve 300, that is, the sliding friction between the traction wire and the wire groove is changed to rolling friction between the sleeve 300 and the needle roller 200, thereby extending the service life of the traction wire, thereby extending the service life of the snake bone composed of the snake bone node ring and improving the reliability of the snake bone. It can be understood that the so-called wire groove 210 is actually a groove that limits the traction wire, so that the traction wire is connected to the first node ring 400 according to the predetermined direction.

[0030] In some embodiments, a plurality of connecting ear groups 110 are provided, each connecting ear group 110 includes two connecting ears 111, and the roller needle 200 is connected between the two connecting ears 111. The connecting ear group 110 is used for the traction wire to pass through. A plurality of connecting ear groups 110 can realize different ways of threading the wire, so that the bending ways of the snake bone are different.

[0031] In some embodiments, two groups of connecting ear groups 110 are provided, and the two groups of connecting ear groups 110 are symmetrically arranged about the central axis of the node ring body 100. The symmetrically arranged connecting ear groups 110 can balance the traction force of the traction wire, so that the bending of the snake bone in two directions is more excellent. It should be noted that the node ring body 100 can be made of metal or plastic.

[0032] In some embodiments, at least one end of the needle roller 200 is welded to the connecting ear 111, and the welded needle roller 200 is not easily affected by the traction wire and detached. It can be understood that both connecting ears 111 are provided with sockets, and the needle roller 200 is inserted into the sockets on the connecting ears 111 from the process hole 120. Before welding, the sleeve 300 is pre-placed between the two connecting ears 111, so that the needle roller 200 passes through the sleeve and is connected to the two connecting ears 111, and then the two ends of the needle roller 200 are welded, so that the sleeve 300 can be encapsulated between the two connecting ears 111.

[0033] In some embodiments, the sleeve 300 is accommodated between two connecting ears 111, and the connecting ears 111 are used to block the end of the sleeve 300, so that the axial displacement of the sleeve 300 is small, reducing the sliding friction of the sleeve 300 on the traction wire.

[0034] In some embodiments, a process hole 120 is provided on the node ring body 100, and the process hole 120 is used to insert the roller needle 200 so that the roller needle 200 is plugged into the two connecting ears 111. The set process hole 120 facilitates the plugging and welding of the roller needle 200, and can also reduce the weight of the node ring body 100.

[0035] A snake bone includes a snake bone segment ring, and also includes a first segment ring 400 and a tail segment ring 500. The snake bone segment ring is provided with a plurality of snake bone segment rings, and the plurality of snake bone segment rings are hinged in sequence to form a segment module. The first segment ring 400 is hinged at one end of the segment module, and the tail segment ring 500 is hinged at the other end of the segment module. The snake bone is provided with a connecting ear group 110 on the segment ring body 100 to provide a connection basis for the roller needle 200. The sleeve 300 is rotatable, so the space defined between the sleeve 300 and the connecting ear group 110 can be used for the traction wire to pass through. Because the sleeve 300 can be rotated, the traction wire will have less wear on the sleeve 300, that is, the sliding friction between the traction wire and the wire groove is changed into the rolling friction between the sleeve 300 and the roller needle 200, thereby extending the service life of the traction wire, thereby extending the service life of the snake bone composed of the snake bone segment rings, and improving the reliability of the snake bone.

[0036] An endoscope includes a snake bone. Because a connecting ear group 110 is provided on a node ring body 100 of the endoscope to provide a connection basis for a needle roller 200, and because a sleeve 300 is provided that is rotatable, a space defined between the sleeve 300 and the connecting ear group 110 can be used for a traction wire to pass through. Because the sleeve 300 is rotatable, the traction wire will have less wear on the sleeve 300, that is, the sliding friction between the traction wire and the wire groove is converted into rolling friction between the sleeve 300 and the needle roller 200, thereby extending the service life of the traction wire, thereby extending the service life of the snake bone composed of the snake bone node rings, and improving the reliability of the snake bone.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A snake bone ring, It is characterized in that include: The node ring body (100) has a connection ear group (110) folded toward the inner cavity of the node ring body (100) arranged on the peripheral wall; A rolling needle (200) is connected to the connecting ear group (110), wherein the rolling needle (200) and the connecting ear group (110) define a wire passing groove (210), and the wire passing groove (210) is used for passing a traction wire; The sleeve (300) is rotatably sleeved on the needle roller (200), and the sleeve (300) is used to support the traction wire.

2. A snake bone nodule ring according to claim 1, Features: A plurality of the connecting ear groups (110) are provided, and each connecting ear group (110) comprises two connecting ears (111), and the rolling needle (200) is connected between the two connecting ears (111).

3. A snake bone nodule ring according to claim 2, Features: The connecting ear groups (110) are provided in two groups, and the two connecting ear groups (110) are symmetrically arranged about the central axis of the node ring body (100).

4. The snake bone nodule ring according to claim 1, Features: At least one end of the rolling needle (200) is welded to the connecting ear (111).

5. The snake bone nodule ring according to claim 1, Features: The sleeve (300) is accommodated between the two connecting ears (111), and the connecting ears (111) are used to block the ends of the sleeve (300).

6. The snake bone nodule ring according to claim 1, Features: The node ring body (100) is provided with a process hole (120), and the process hole (120) is used to insert the rolling needle (200), so that the rolling needle (200) is plugged into the two connecting ears (111).

7. A snake bone, It is characterized in that It comprises the snake bone nodal ring as described in any one of claims 1 to 6, and also comprises a first nodal ring (400) and a tail nodal ring (500), wherein the snake bone nodal ring is provided in a plurality, and the plurality of the snake bone nodal rings are hinged in sequence to form a nodal module, wherein the first nodal ring (400) is hinged at one end of the nodal module, and the tail nodal ring (500) is hinged at the other end of the nodal module.

8. An endoscope, It is characterized in that Including the snake bone described in claim 7.

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