CN215534192U - Snake bone group and snake bone pipe - Google Patents

Abstract

The utility model provides a snake bone group and snake bone pipe, this snake bone group includes the snake bone section of two different structures, uses first snake bone section and second snake bone section integrated configuration as a repeating unit in this snake bone pipe, establishes depressed part and bulge on first snake bone section and second snake bone section, need not to process depressed part and bulge simultaneously on same snake bone section, and is simpler in processing manufacturing. Simultaneously, the middle part of this depressed part is equipped with bellied T shape fixture block, and the middle part of bellying is equipped with the assembly opening, and the bellying of second snake condyle inserts with mobilizable mode in the depressed part that corresponds on the first snake condyle, when first snake condyle and second snake condyle buckle, this T shape fixture block can cooperate with the inner wall of the assembly opening both sides of bellying, makes the conduction of power more disperse evenly between first snake condyle and the second snake condyle, and first snake condyle and second snake condyle relative motion are more smooth and easy and stable.

Description

Snake bone group and snake bone pipe

Technical Field

The application relates to a structure of a snake bone pipe.

Background

The flexible insertion part is a controllable bending and swinging part, the bending angle of the insertion part can be freely controlled by an operator, the main parts for realizing free swinging are a snake bone pipe and a control wire, and the snake bone is driven to swing by pulling the control wire.

The snake bone pipe is usually composed of a plurality of same unit sections, adjacent unit sections can be bent mutually, and the bending of the whole snake bone pipe in a certain direction can be realized by overlapping the bending effects of the unit sections so as to achieve the required purpose, such as accurate detection and observation of human body parts.

The prior snake bone tube structure has a plurality of defects, and needs further improvement.

Disclosure of Invention

The application provides a snake bone group of a snake bone pipe and the snake bone pipe adopting the snake bone group so as to show a novel snake bone pipe structure.

Based on the above purpose, an embodiment of the present application provides a snake bone group of snake bone pipe, including two tubular structures's snake bone section, the snake bone section has at least one cavity that link up the setting along its axial, in the snake bone group the snake bone section is first snake bone section and second snake bone section, connect with the mode that can buckle between first snake bone section and the second snake bone section, first snake bone section has the recess of relative setting, the middle part of recess is equipped with bellied T-shaped fixture block, the second snake bone section has the bellying of relative setting, the bellying middle part is equipped with the assembly mouth, and the bellying of second snake bone section inserts with mobilizable mode in the recess that corresponds on the first snake bone section, T-shaped fixture block inserts with mobilizable mode in the assembly mouth, when first snake bone section and second snake bone section buckle relatively, the convex part can move in the concave part, and the T-shaped clamping block can move in the assembling port to adjust the bending angle between the first snake bone joint and the second snake bone joint.

In one embodiment, the first snake bone joint has a first main joint body, and the first main joint body is provided with the concave part; the second snake bone joint has the second main joint body, the bellying certainly the protruding setting of second main joint body, T shape fixture block has two first buckles that set up to both sides, the open end of assembly mouth be equipped with the second buckle that first buckle is relative the bellying certainly during the outside removal of depressed part, first buckle can with second buckle lock, in order to prevent the bellying is followed drop in the depressed part.

In one embodiment, the second main section axial length is less than the first main section axial length.

In one embodiment, the number of the concave portions is at least four, and the concave portions are divided into a first concave portion group and a second concave portion group, the first concave portion group and the second concave portion group are distributed on two opposite side surfaces of the first main joint body, and the first concave portion group comprises a first upper concave portion and a first lower concave portion; the second set of depressions comprises a second upper depression and a second lower depression; when the first snake bone joint and the second snake bone joint are in a straight line arrangement state, the first upper concave part and the first lower concave part are positioned on the same straight line, and the second upper concave part and the second lower concave part are positioned on the same straight line; the first lower concave part and the second lower concave part are used for being matched with the corresponding convex parts on the second snake bone joint, and the first upper concave part and the second upper concave part are used for being matched with the corresponding convex parts on the second snake bone joint in the snake bone group above the first snake bone joint.

In one embodiment, the protrusions are divided into a first protrusion group and a second protrusion group, the first protrusion group and the second protrusion group are distributed on two opposite side surfaces of the second main joint body, and the first protrusion group includes a first upper protrusion and a first lower protrusion; the second bulge group comprises a second upper bulge and a second lower bulge, when the first serpentine segment and the second serpentine segment are in a straight line arrangement state, the first upper bulge, the first lower bulge, the first upper recess and the first lower recess are positioned on the same straight line, and the second upper bulge, the second lower bulge, the second upper recess and the second lower recess are positioned on the same straight line; the first upper convex part is correspondingly inserted into the first lower concave part, and the second upper convex part is correspondingly inserted into the second lower concave part; the first lower convex part and the second lower convex part are used for being matched with the corresponding concave part on the first snake bone joint in another snake bone group positioned below the second snake bone joint.

In one embodiment, the second main joint body is cut into a first inner concave part and a second inner concave part, the first inner concave part and the second inner concave part are arranged oppositely and are arranged along the radial inner concave of the second main joint body, the first inner concave part is located between the first upper convex part and the first lower convex part, the second inner concave part is located between the second upper convex part and the second lower convex part, and the first inner concave part and the second inner concave part have structures for the linear body to pass through.

In one embodiment, leave first bending groove and the second bending groove of relative setting between first snake condyle and the second snake condyle, first bending groove and second bending groove are all followed snake condyle peripheral direction extends the setting, first bellying passes first bending groove inserts in the first depressed part, the bellying passes on the second bending groove inserts in the second depressed part, when first snake condyle and second snake condyle buckle relatively, first bending groove or second bending groove form dodges the space.

In one embodiment, both ends of the first bending groove and the second bending groove have a corner in the shape of a circular arc.

In one embodiment, in the axial direction of the second main joint body, the second upper protruding portion and the first upper protruding portion are arranged in a staggered manner, the second lower protruding portion and the first lower protruding portion are arranged in a staggered manner, the position of the second upper protruding portion is higher than that of the first upper protruding portion, and the position of the second lower protruding portion is higher than that of the first lower protruding portion; the second bending groove is higher than the first bending groove.

In one embodiment, the first snake bone joint and the second snake bone joint are two independent components respectively and are arranged coaxially, a rotating connecting structure is arranged between the first snake bone joint and the second snake bone joint, so that the first snake bone joint and the second snake bone joint can rotate relatively, and the rotating center line of the first snake bone joint is perpendicular to the central axis of the first snake bone joint and the central axis of the second snake bone joint.

In one embodiment, the first snake bone section and the second snake bone section are of an integrally formed structure, and the first snake bone section and the second snake bone section are connected through the elastic arm.

In view of the above, in one embodiment of the present application, there is provided a snake bone pipe, comprising a plurality of snake bone groups as described in any one of the above, all of the snake bone groups are connected in series in an axial direction, the second snake bone segment of the previous snake bone group in the adjacent snake bone groups is connected with the first snake bone segment of the next snake bone group in a bendable manner, and the partial protrusion of the second snake bone segment of the previous snake bone group in the adjacent snake bone groups is movably inserted into the partial recess of the first snake bone segment of the next snake bone group, and when the adjacent snake bone groups are relatively bent, the protrusion of the previous second snake bone segment can move in the recess of the next first snake bone segment to adjust the bending angle between the adjacent snake bone groups.

In one embodiment, a first bending groove and a second bending groove which are oppositely arranged are reserved between a first snake bone joint and a second snake bone joint which are adjacent to each other, the first bending groove and the second bending groove are arranged along the peripheral direction of the snake bone joints in an extending mode, so that when the first snake bone joint and the second snake bone joint which are adjacent to each other are bent relatively, the first bending groove or the second bending groove can be aligned to form an avoiding space between the first snake bone joint and the second snake bone joint.

According to the snake bone pipe of the embodiment, the snake bone group comprises two snake bone joints with different structures, the first snake bone joint and the second snake bone joint are combined to form a repeating unit in the snake bone pipe, the concave part and the convex part are arranged on the first snake bone joint and the second snake bone joint, the concave part and the convex part do not need to be simultaneously processed on the same snake bone joint, and the processing and the manufacturing are simpler. Simultaneously, the middle part of this depressed part is equipped with bellied T shape fixture block, and the middle part of bellying is equipped with the assembly opening, and the bellying of second snake condyle inserts with mobilizable mode in the depressed part that corresponds on the first snake condyle, when first snake condyle and second snake condyle buckle, this T shape fixture block can cooperate with the inner wall of the assembly opening both sides of bellying, makes the conduction of power more disperse evenly between first snake condyle and the second snake condyle, and first snake condyle and second snake condyle relative motion are more smooth and easy and stable.

Drawings

FIG. 1 is a perspective view of a snake tube segment configuration according to one embodiment of the present application;

FIG. 2 is a front view of the snake bone tube portion configuration in one embodiment of the present application;

FIG. 3 is a rear view of the snake tube segment construction in accordance with one embodiment of the present application;

FIG. 4 is an expanded schematic view of the structure shown in FIGS. 1-3;

FIG. 5 is a perspective view of the snake tube portion construction in another embodiment of the present application;

FIG. 6 is a front view of the snake tube portion of another embodiment of the present application;

FIG. 7 is a rear view of the snake tube portion construction in accordance with another embodiment of the present application;

fig. 8 is an expanded view of the structure shown in fig. 5-7.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The snake bone pipe can realize bending in certain directions, and can be applied to medical instruments and industrial equipment, such as medical endoscopes, industrial scopes or other industries needing the medical endoscopes and the industrial scopes.

The main improvement of the snake bone pipe in the embodiment lies in the change of the snake bone bending structure, and other structures of the snake bone pipe can refer to other existing snake bone pipe structures. For example, in some embodiments, the snake bone tube may further include a connection end for interfacing with the control handle, a distal-most head end, and a linear body (such as a steel cable) for driving the snake bone tube to bend, in addition to the snake bone segment, and even in some embodiments, the head end of the snake bone tube may be provided with a second bending portion (the snake bone segment assembly may be regarded as a first bending portion), so as to further increase the bending deformation effect of the snake bone tube. In addition, structures for installing the linear bodies can be arranged on the snake bone joints, and the structures can refer to the structures of the existing snake bone pipes.

Referring to fig. 1-8, the present embodiment mainly shows the serpentine bone bending structure in the serpentine bone tube. The snake bone tube comprises a plurality of snake bone groups 1. Each snake bone group 1 comprises two snake bone segments (as the reference numbers 100 and 200 in the figure) with cylindrical structures. The snake bone joint is provided with at least one cavity channel which is arranged through along the axial direction of the snake bone joint. After all the snake bones are assembled, these channels can be communicated, and matched by external hoses and other components, so as to form the required channels, such as cable channels (used for arranging cables to provide electric power support or form light conduction channels (such as optical fibers)) or other functional channels.

The snake bone segments in the snake bone group 1 are divided into a first snake bone segment 100 and a second snake bone segment 200. The first serpentine segment 100 and the second serpentine segment 200 are connected in a bendable manner, i.e., the first serpentine segment 100 and the second serpentine segment 200 can be changed in a double-fold manner at the connection. The bending is typically controlled by pulling on the wire (e.g., steel cord). The angle of bending is limited by the structural design of the first and second serpentine segments 100 and 200. The bending function of the snake bone tube is formed by overlapping bending matching structures between all adjacent snake bone sections, so that the bending matching structures between the two snake bone sections directly influence the bending effect of the whole snake bone tube.

The effect of buckling between first snake condyle 100 and second snake condyle 200 can be realized through both rotation connections, also can realize through the elastic material deformation between the two, can also realize through other modes, as long as can guarantee that both can buckle to setting for the direction as required.

The first serpentine segment 100 has opposed recesses (e.g., 111, 112, 113, 114 as shown) and the second serpentine segment 200 has opposed projections (e.g., 211, 212, 213, 214 as shown) that are removably insertable into the corresponding recesses of the first serpentine segment 100. When the first snake bone joint 100 and the second snake bone joint 200 are relatively bent, the convex part can move in the concave part to adjust the bending angle between the first snake bone joint 100 and the second snake bone joint 200.

In the snake bone tube, all snake bone groups 1 are connected coaxially. For convenience of description, referring to fig. 1-3 and fig. 5-7, the present embodiment is described by taking a state in which all the snake bone groups 1 are arranged along a straight line (i.e. the snake bone section combination structure of the snake bone pipe is in a straight line shape) as an example, but obviously, the snake bone groups 1 can also be bent to form a curved state. Under the straight line arrangement state, this bellying and depressed part set up roughly on the same straight line, and this straight line corresponds with the crooked direction of snake bone pipe moreover, and the snake bone pipe can be towards the one side at this bellying and depressed part place crooked promptly.

Wherein the snake tube can be bent in one or more directions, e.g. more, in two opposite directions, or four directions. Referring to fig. 1-8, the serpentine tube is bent in two opposite directions, and thus, the two sets of protrusions and depressions are distributed in the two opposite directions. When the snake bone pipe is bent towards one direction, the first snake bone joint 100 and the second snake bone joint 200 are bent towards the direction, and the convex part on the second snake bone joint 200, which is positioned at the same side of the bending direction, moves towards the concave part of the first snake bone joint 100, so that the first snake bone joint 100 and the second snake bone joint 200 are close to each other at the side to meet the bending requirement. The convex part of the second snake bone joint 200, which is located at the side deviating from the bending direction, moves out of the concave part of the first snake bone joint 100, so that the first snake bone joint 100 and the second snake bone joint 200 are far away from each other at the side deviating from the bending direction, and the bending requirement is completed.

Unlike the prior art in which the snake bone tube is repeated by using a single snake bone joint as a unit, the snake bone tube shown in the above embodiment has the combination structure of the first snake bone joint 100 and the second snake bone joint 200 as a repeating unit, and the concave portion and the convex portion are provided on the first snake bone joint 100 and the second snake bone joint 200, so that the concave portion and the convex portion do not need to be simultaneously processed on the same snake bone joint, and the processing and manufacturing are simpler.

Further, referring to fig. 1-8, the first serpentine segment 100 has a first main segment 110, and the first main segment 110 is provided with a recess (e.g. including 111, 112, 113, and 114). The second sheepskin section 200 has a second main section body 210, and projections (e.g., including 211, 212, 213, 214 in the figures) are provided projecting from the second main section body 210.

The provision of the recess requires a longer dimension in the axial direction corresponding to the first main joint body 110, which is disadvantageous for reducing the axial length of the serpentine joint. In this embodiment, the second serpentine segment 200 does not need to be provided with a recess, and the protrusion is received in the recess of the first serpentine segment 100, so the axial length of the second main segment 210 of the second serpentine segment 200 can be flexibly selected, especially designed to be shorter. When the axial length of the second main joint body 210 is shorter, the axial length of the whole snake bone canal can also be shorter, and when other conditions are the same, the smaller the axial dimension of the second main joint body 210 is, the smaller the bending radius of the snake bone canal is, so that the bending effect of the snake bone canal is better.

For example, in one embodiment, the second main section 210 of the second serpentine section 200 has an axial length that is less than the axial length of the first main section 110 of the first serpentine section 100. The axially shorter second body section 210 facilitates a smaller radius bend in the snake bone canal.

Further, referring to fig. 1-8, a raised T-shaped latch 115 is disposed in the middle of the recessed portion. The second sheepskin node 200 has oppositely disposed projections. The middle of the protruding portion is provided with a fitting hole 215, and the T-shaped latch 115 is movably inserted into the fitting hole 215. When the first and second serpentine segments 100 and 200 are bent relatively, the protrusion can move in the recess, and the T-shaped fixture block 115 can move in the mounting opening 215 to adjust the bending angle between the first and second serpentine segments 100 and 200.

The two sides of the T-shaped fixture block 115 are respectively matched with the inner wall of the assembling opening 215 of the protruding part, when the first snake bone joint 100 and the second snake bone joint 200 are bent, the force transmission between the first snake bone joint 100 and the second snake bone joint 200 is more uniformly dispersed, and the relative motion of the first snake bone joint 100 and the second snake bone joint 200 is more smooth and stable.

Further, the T-shaped latch 115 has two first latches 116 disposed toward both sides, and the opening end of the fitting opening 215 is provided with a second latch 216 opposite to the first latch 116, so that when the protruding portion moves outward from the recessed portion, the first latch 116 can be latched with the second latch 216 to prevent the protruding portion from falling off from the recessed portion.

The matching structure of the first buckle 116 and the second buckle 216 can limit the bending angle between the first snake bone joint 100 and the second snake bone joint 200, and avoid the situation that the first snake bone joint 100 and the second snake bone joint 200 are bent too much and the first snake bone joint 100 and the second snake bone joint 200 are separated easily due to the too large bending angle. And too big angle of buckling also can make the snake bone pipe along radial outside protruding degree higher, and then increases the frictional force between snake bone pipe and the hose of cover establishing outside the snake bone pipe, also leads to the snake bone pipe to break more easily, consequently leads to snake bone pipe and hose life-span reduction. The present embodiment can avoid the above problem by the matching structure of the first latch 116 and the second latch 216.

Further, referring to fig. 1-8, in a more specific embodiment, the number of the recesses is at least four, and the recesses are divided into a first recess group (e.g. including 111, 112) and a second recess group (e.g. including 113, 114), and the first recess group and the second recess group are distributed on two opposite sides of the first main section 110, so that the first serpentine segment 100 and the second serpentine segment 200 can be bent on the two opposite sides.

The first recess group includes a first upper recess 111 and a first lower recess 112. The second recess group includes a second upper recess 113 and a second lower recess 114. When the first and second serpentine segments 100 and 200 are in the linear arrangement, the first upper concave portion 111 and the first lower concave portion 112 are located on the same straight line, and the second upper concave portion 113 and the second lower concave portion 114 are located on the same straight line. The first lower recess 112 and the second lower recess 114 are adapted to cooperate with corresponding protrusions on the second serpentine segment 200, and the first upper recess 111 and the second upper recess 113 are adapted to cooperate with corresponding protrusions on another second serpentine segment 200 in the serpentine group 1 located above the first serpentine segment 100.

Correspondingly, the protrusions are divided into a first protrusion group (e.g. including 211, 212 in the figure) and a second protrusion group (e.g. including 213, 214 in the figure), and the first protrusion group and the second protrusion group are distributed on two opposite sides of the second main joint body 210. The first bulge group corresponds to the first sunken part group in position, and the second bulge group corresponds to the second sunken part group in position.

The first boss group includes a first upper boss 211 and a first lower boss 212. The second boss group includes a second upper boss 213 and a second lower boss 214. The first upper protruding part 211 is correspondingly inserted into the first lower recess 112, and the second upper protruding part 213 is correspondingly inserted into the second lower recess 114; the first lower projection 212 and the second lower projection 214 are adapted to mate with corresponding recesses on another first serpentine segment 100 in the serpentine group 1 below the second serpentine segment 200.

When the first and second sheepskin bone segments 100 and 200 are in the straight arrangement, the first upper protrusion 211, the first lower protrusion 212, the first upper recess 111 and the first lower recess 112 are located on the same straight line, so that the bending directions of all the sheepskin bone segments on the side are kept consistent. Meanwhile, the second upper protrusion 213, the second lower protrusion 214, the second upper recess 113 and the second lower recess 114 are located on the same straight line, so that the bending directions of all the snake bone segments on the side are consistent, and the whole snake bone tube is more smoothly bent.

In the whole snake bone pipe, the second snake bone joint 200 of the previous snake bone group 1 in the adjacent snake bone group 1 is connected with the first snake bone joint 100 of the next snake bone group 1 in a bendable way, and the bending way can be the same as or different from that of the first snake bone joint 100 and the second snake bone joint 200 in the same group, and in the embodiment shown in fig. 1-4, the same bending way is adopted by all the adjacent first snake bone joints 100 and the second snake bone joints 200. In the embodiment shown in fig. 5-8, all adjacent first and second serpentine segments 100, 200 are similarly bent. Part of the convex part of the second snake bone section 200 of the previous snake bone section 1 in the adjacent snake bone group 1 is movably inserted into part of the concave part of the first snake bone section 100 of the next snake bone group 1. When the adjacent snake bone groups 1 are relatively bent, the convex part of the previous second snake bone section 200 can move in the concave part of the next first snake bone section 100 to adjust the bending angle between the adjacent snake bone groups 1.

Further, both the first and second serpentine condyles 100 and 200 may be used to provide a structure for the threading of a linear body, see fig. 1 and 5. in one embodiment, the second main condyle body 210 is cut with a first internal recess 221 and a second internal recess 222. The first and second inner concave portions 221 and 222 are disposed opposite to each other and both are recessed in the radial direction of the second main joint body 210. The first inner recess 221 is located between the first upper protrusion 211 and the first lower protrusion 212, the second inner recess 222 is located between the second upper protrusion 213 and the second lower protrusion 214, and the first inner recess 221 and the second inner recess 222 have a structure for a linear body to pass through. The structure may be a string hole or other structure.

Further, referring to fig. 4 and 8, in an embodiment, in the axial direction of the second main joint body 210, the second upper protruding portion 213 is disposed to be offset from the first upper protruding portion 211, the second lower protruding portion 214 is disposed to be offset from the first lower protruding portion 212, the position of the second upper protruding portion 213 is higher than the position of the first upper protruding portion 211, and the position of the second lower protruding portion 214 is higher than the position of the first lower protruding portion 212; the second bending groove is higher than the first bending groove.

Further, in the same snake bone group 1, a first bending groove 310 and a second bending groove 320 are left between the first snake bone section 100 and the second snake bone section 200, and the first bending groove 310 and the second bending groove 320 are both arranged to extend along the peripheral direction of the snake bone sections. The first upper protrusion 211 is inserted into the first lower recess 112 through the first bending groove 310, and the second upper protrusion 213 is inserted into the second lower recess 114 through the second bending groove 320. When the first serpentine segment 100 and the second serpentine segment 200 are bent relatively, the first bending groove 310 or the second bending groove 320 forms an avoiding space. For example, when the first and second serpentine segments 100 and 200 are bent toward the first protrusion set, the first bending groove 310 may leave a space so that the first and second serpentine segments 100 and 200 can be bent and approach each other. Similarly, when the first and second serpentine segments 100 and 200 are bent toward the second protrusion set, the second bending groove 320 provides a space for the first and second serpentine segments 100 and 200 to be bent and approach each other.

Except for the same snake bone group 1, a first bending groove 310 and a second bending groove 320 which are oppositely arranged can be left between the adjacent first snake bone joint 100 and the second snake bone joint 200 in the whole snake bone pipe. The first bending groove 310 and the second bending groove 320 are both provided to extend in the peripheral direction of the snake bone segment. So that when the adjacent first serpentine segment 100 and second serpentine segment 200 are relatively bent, the first bending groove 310 or the second bending groove 320 can form an avoiding space for the first serpentine segment 100 and the second serpentine segment 200.

The bending grooves (including the first bending groove 310 and the second bending groove 320) may have various shapes, and referring to fig. 6-8, in one embodiment, the two ends of the first bending groove 310 and the second bending groove 320 have rounded corners 301. The arc-shaped corner 301 can disperse stress generated by bending to each wall body when the first serpentine segment 100 and the second serpentine segment 200 are bent, and further can prevent the bending groove from being broken to a certain extent.

On the other hand, the first and second snake bone segments 100 and 200 in the snake bone tube may be formed as separate bodies or as an integral body. Wherein, one or more snake bone groups 1 can be an integral forming structure, and the whole snake bone pipe can also be an integral forming structure.

Specifically, referring to fig. 1-4, in one embodiment, the first and second serpentine segments 100 and 200 are two separate components, which are coaxially disposed.

A rotary connecting structure is arranged between the first snake bone joint 100 and the second snake bone joint 200, so that the first snake bone joint 100 and the second snake bone joint 200 can rotate relatively, and the rotation center line of the first snake bone joint 100 and the second snake bone joint 200 is perpendicular to the central axis of the first snake bone joint 100 and the second snake bone joint 200.

The rotary connection structure is realized by the arc-shaped protrusion 501 and the arc-shaped groove 502, and the arc-shaped protrusion 501 and the arc-shaped groove 502 can be respectively arranged on the adjacent first snake bone joint 100 and the second snake bone joint 200, so that the first snake bone joint and the second snake bone joint can rotate relatively.

Of course, in some embodiments, the first snake bone joints 100 and the second snake bone joints 200 in more than one snake bone group 1 are in a split structure, and all the adjacent first snake bone joints 100 and second snake bone joints 200 can also be in a split structure.

Referring to fig. 5-8, in another embodiment, the first snake bone segment 100 and the second snake bone segment 200 located on the same snake bone group 1 or the whole snake bone pipe are an integrally formed structure, and the first snake bone segment 100 and the second snake bone segment 200 are connected by the elastic arm 400. The resilient arm 400 is capable of providing resilient deformation when the first and second snake bone segments 100 and 200 are bent to accommodate the bending requirements of the snake bone tube.

In the manufacturing process, the pipe can be cut and formed on a pipe in a laser cutting mode no matter in a split structure or an integral structure. Of course, the manner of making the first and second snake bone segments 100 and 200 is not limited to laser cutting.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims (16)

1. A snake bone group is characterized by comprising two snake bone joints of a cylindrical structure, wherein the snake bone joints are provided with at least one cavity channel which is arranged along the axial direction of the snake bone joints in a penetrating way, the snake bone joints in the snake bone group are a first snake bone joint and a second snake bone joint, the first snake bone joint and the second snake bone joint are connected in a bendable way, the first snake bone joint is provided with a concave part which is arranged oppositely, a raised T-shaped clamping block is arranged in the middle of the concave part, the second snake bone joint is provided with a raised part which is arranged oppositely, the middle part of the raised part is provided with an assembling port, the raised part of the second snake bone joint is inserted into the corresponding concave part on the first snake bone joint in a movable way, the T-shaped clamping block is inserted into the assembling port in a movable way, and when the first snake bone joint and the second snake bone joint are bent oppositely, the raised part can move in the concave part, the T-shaped clamping block can move in the assembling opening to adjust the bending angle between the first snake bone joint and the second snake bone joint.

2. A snake bone set according to claim 1, wherein said first snake bone segment has a first main segment body, said first main segment body being provided with said recess; the second snake bone joint has the second main joint body, the bellying certainly the protruding setting of second main joint body, T shape fixture block has two first buckles that set up to both sides, the open end of assembly mouth be equipped with the second buckle that first buckle is relative the bellying certainly during the outside removal of depressed part, first buckle can with second buckle lock, in order to prevent the bellying is followed drop in the depressed part.

3. A snake bone set according to claim 2, wherein the second main section axial length is less than the first main section axial length.

4. A snake bone set according to claim 2, wherein said depressions are at least four, divided into a first depression set and a second depression set, said first depression set and said second depression set being distributed on two opposite sides of said first main joint body, said first depression set comprising a first upper depression and a first lower depression; the second set of depressions comprises a second upper depression and a second lower depression; when the first snake bone joint and the second snake bone joint are in a straight line arrangement state, the first upper concave part and the first lower concave part are positioned on the same straight line, and the second upper concave part and the second lower concave part are positioned on the same straight line; the first lower concave part and the second lower concave part are used for being matched with the corresponding convex parts on the second snake bone joint, and the first upper concave part and the second upper concave part are used for being matched with the corresponding convex parts on the second snake bone joint in the snake bone group above the first snake bone joint.

5. A snake bone set according to claim 4, wherein the lobes are divided into a first lobe set and a second lobe set, the first lobe set and the second lobe set being distributed on two opposite sides of the second main body, the first lobe set comprising a first upper lobe and a first lower lobe; the second bulge group comprises a second upper bulge and a second lower bulge, when the first serpentine segment and the second serpentine segment are in a straight line arrangement state, the first upper bulge, the first lower bulge, the first upper recess and the first lower recess are positioned on the same straight line, and the second upper bulge, the second lower bulge, the second upper recess and the second lower recess are positioned on the same straight line; the first upper convex part is correspondingly inserted into the first lower concave part, and the second upper convex part is correspondingly inserted into the second lower concave part; the first lower convex part and the second lower convex part are used for being matched with the corresponding concave part on the first snake bone joint in another snake bone group positioned below the second snake bone joint.

6. The snake bone group of claim 5, wherein the second main segment is cut with first and second inner recesses, the first and second inner recesses being disposed opposite each other and each being disposed along a radial concavity of the second main segment, the first inner recess being located between the first upper and lower lobes, the second inner recess being located between the second upper and lower lobes, the first and second inner recesses having a configuration for a wire to pass through.

7. A snake bone group according to claim 5, wherein a first bending groove and a second bending groove are oppositely arranged between the first snake bone joint and the second snake bone joint, the first bending groove and the second bending groove are both arranged along the peripheral direction of the snake bone joints, the first upper convex part is inserted into the first lower concave part through the first bending groove, the second upper convex part is inserted into the second lower concave part through the second bending groove, and when the first snake bone joints and the second snake bone joints are relatively bent, the first bending groove or the second bending groove forms an avoiding space.

8. The snake bone group of claim 7, wherein the first and second bending grooves have rounded corners at both ends.

9. The snake bone group according to claim 7, wherein the second upper convex portion is offset from the first upper convex portion, the second lower convex portion is offset from the first lower convex portion, and the second upper convex portion is located higher than the first upper convex portion, and the second lower convex portion is located higher than the first lower convex portion in the axial direction of the second main joint body; the second bending groove is higher than the first bending groove.

10. A snake bone group according to claim 1, wherein said first snake bone joint and said second snake bone joint are two separate parts, which are coaxially arranged, and a rotational connection structure is provided between said first snake bone joint and said second snake bone joint to enable said first snake bone joint and said second snake bone joint to rotate relatively, and the rotational center line of said first snake bone joint and said second snake bone joint is perpendicular to the central axis of said first snake bone joint and said second snake bone joint.

11. A snake bone group according to claim 1, wherein said first snake bone segment and said second snake bone segment are of an integrally formed structure, and said first snake bone segment and said second snake bone segment are connected by a resilient arm.

12. A snake bone pipe, comprising a plurality of snake bone groups as claimed in any one of claims 1 to 6, wherein all the snake bone groups are connected in series in an axial direction, the second snake bone segment of the previous snake bone group in the adjacent snake bone groups is connected with the first snake bone segment of the next snake bone group in a bendable manner, and the partial convex part of the second snake bone segment of the previous snake bone group in the adjacent snake bone groups is inserted into the partial concave part of the first snake bone segment of the next snake bone group in a movable manner, and when the adjacent snake bone groups are relatively bent, the convex part of the previous second snake bone segment can move in the concave part of the next first snake bone segment to adjust the bending angle between the adjacent snake bone groups.

13. A snake bone pipe according to claim 12, wherein a first bending groove and a second bending groove are oppositely arranged between the adjacent first snake bone joint and the second snake bone joint, and the first bending groove and the second bending groove are both arranged to extend along the peripheral direction of the snake bone joints, so that when the adjacent first snake bone joints and the second snake bone joints are oppositely bent, the first bending groove or the second bending groove can form an avoiding space for the first snake bone joints and the second snake bone joints.

14. A snake bone tube according to claim 13, wherein both ends of said first and second bending grooves have rounded corners.

15. A snake bone tube according to claim 12, wherein adjacent first and second snake bone segments are two separate parts, which are coaxially disposed, and a rotational connection structure is provided between said first and second snake bone segments to enable relative rotation of said first and second snake bone segments, the rotational centerline of which is perpendicular to the central axes of said first and second snake bone segments.

16. A snake bone tube according to claim 12, wherein adjacent first and second snake bone segments are of one integral structure and are connected by a resilient arm.

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