CN215641985U - Tail fiber protection tube and tail fiber protection device - Google Patents

Abstract

The application provides a tail optical fiber protection tube and a tail optical fiber protection device, and belongs to the field of power communication. The pigtail protection tube comprises a tube body and an opening, wherein the tube body is of a corrugated structure, and the opening penetrates through the tube body along the length direction of the tube body; the opening comprises a first opening edge and a second opening edge which are oppositely arranged, a convex piece is arranged on the first opening edge, and a concave piece is arranged on the second opening edge. When the convex part is clamped in the concave part, the closed state of the tail fiber protection tube is formed; and when the convex part is positioned outside the concave part, the open state of the tail fiber protection tube is formed. This application can realize improving the intensity of tail optical fiber protection tube to carry out the purpose of good protection to the tail optical fiber through the tail optical fiber protection tube.

Description

Tail fiber protection tube and tail fiber protection device

Technical Field

The application relates to the technical field of power communication, in particular to a tail optical fiber protection tube and a tail optical fiber protection device.

Background

The tail fiber is a common medium in the field of power communication, one end of the tail fiber is provided with a connector, the other end of the tail fiber is a broken end of a fiber core of an optical cable, and the broken end is connected with fiber cores of other optical cables through fusion splicing and used for connecting the optical cable with an optical fiber transceiver.

In the related art, a corrugated tube is generally used to protect the pigtail, and in order to facilitate the placement of the pigtail, an opening needs to be formed along the length direction of the corrugated tube.

However, this structure has problems that: the corrugated pipe has low strength and poor protection effect on the tail fiber.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the problems mentioned in the background art, the present application provides a pigtail protection tube and a pigtail protection device, which can achieve the purpose of improving the strength of the pigtail protection tube and well protecting the pigtail through the pigtail protection tube.

In order to achieve the above object, in a first aspect, the present application provides a pigtail protection tube, including a tube body having a corrugated structure and an opening penetrating through the tube body along a length direction of the tube body; the opening comprises a first opening edge and a second opening edge which are oppositely arranged, a convex piece is arranged on the first opening edge, and a concave piece is arranged on the second opening edge.

When the convex part is clamped in the concave part, the closed state of the tail fiber protection tube is formed; and when the convex part is positioned outside the concave part, the open state of the tail fiber protection tube is formed.

As a possible implementation manner, the concave part includes a first rib and a second rib which are oppositely arranged, the first rib is arranged close to the outer wall surface of the pipe body, and the second rib is arranged close to the inner wall surface of the pipe body; the height of the first rib is greater than the height of the second rib.

As a possible implementation manner, the end of the first rib and the end of the second rib are both in a circular arc structure.

As a possible implementation manner, the pipe body includes a plurality of protruding portions and a plurality of recessed portions, and the protruding portions and the recessed portions are sequentially connected in a staggered manner to form a corrugated structure of the pipe body; the convex part and the concave part are respectively provided with a first distance from the convex part, and the convex part and the concave part are respectively provided with a second distance from the concave part.

As a possible implementation manner, when the pigtail protection tube is in the open state, the third distance between the male part and the female part is between 0.5 and 1 mm.

As a possible implementation manner, the shapes of the convex part and the concave part are matched, and the end part of the convex part is of an arc structure.

As a possible implementation manner, the end part of the convex part is of an arc-shaped structure with a circular arc-shaped cross section; or the end part of the convex part is of an arc structure with a parabolic cross section; or the end part of the convex part is of an arc structure with a quincunx cross section.

As a possible implementation manner, the shapes of the male member and the female member are matched, and the end part of the male member is of an angular structure; all edges of the convex part are in circular arc transition.

As a possible realization, the end of the male member is a prismatic structure with a triangular cross section; or the end part of the convex part is of a prismatic structure with a trapezoidal cross section; or the end part of the convex part is of a prismatic structure with a rectangular cross section.

In a second aspect, the present application further provides a pigtail protection device, including a pigtail and a pigtail protection tube, the pigtail via an opening of the pigtail protection tube is provided in the pigtail protection tube.

Compared with the related art, the beneficial effects of the application are that:

according to the tail fiber protection tube, the opening is arranged in the length direction of the tube body of the tail fiber protection tube and comprises a first opening edge and a second opening edge which are arranged oppositely, the first opening edge is provided with the convex piece, the second opening edge is provided with the concave piece, and when the convex piece is clamped in the concave piece, the closed state of the tail fiber protection tube is formed; when the convex part is positioned outside the concave part, the open state of the tail fiber protection tube is formed, so that the strength of the tail fiber protection tube is improved, and the tail fiber placed in the tail fiber protection tube can be well protected.

The construction of the present application and other advantages thereof will be more apparent from the description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of a pigtail protection tube according to an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a cross-sectional view of a pigtail protection tube provided in an embodiment of the present application in an open state;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

fig. 5 is a cross-sectional view of a pigtail protection tube provided in an embodiment of the present application in a closed state;

fig. 6 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is an arc-shaped structure with a circular arc-shaped cross section;

fig. 7 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is an arc-shaped structure with a parabolic cross section;

fig. 8 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application having an arc-shaped structure with a quincunx cross section;

fig. 9 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application having a triangular cross-section;

fig. 10 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application having a trapezoidal cross-section;

fig. 11 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is in a rectangular prism structure in cross section;

fig. 12 is a perspective view of a pigtail protection device provided in an embodiment of the present application.

Description of reference numerals:

100-pigtail protection tube;

110-a tube body;

111-a boss; 112-a recess;

120-opening;

121-first opening edge; 122-second opening edge;

130-a male member;

140-a female part;

141-a first rib; 142-a second rib;

200-tail fiber.

Detailed Description

In the correlation technique, the tail optical fiber is a common medium in the electric power communication field, and in order to avoid the tail optical fiber from being damaged by extrusion or impact of foreign objects in the construction or use process, the influence on the service performance of the tail optical fiber is caused, under the common condition, the corrugated pipe is adopted to protect the structure of the tail optical fiber, and the specific implementation mode is as follows: an opening is arranged in the length direction of the corrugated pipe in a penetrating mode, and then the tail fiber is plugged into the corrugated pipe through the opening. However, when the corrugated tube is pressed by a foreign object during use, the corrugated tube has an opening penetrating in the longitudinal direction, so that the strength of the corrugated tube is not high and the corrugated tube is easily deformed. Meanwhile, in the process of pressing the corrugated pipe, the weight borne by the surface of the corrugated pipe is indirectly transferred to the tail fiber in the corrugated pipe through the pipe wall of the corrugated pipe, and the performance of the tail fiber is influenced to a certain extent. It can be seen that the bellows of the related art has the following problems: firstly, the strength of the corrugated pipe is not high; ② the protection effect to the tail fiber is poor.

Based on the technical problem, the application provides a pigtail protection tube and a pigtail protection device, wherein a tube body of the pigtail protection tube is arranged to be of a corrugated structure, an opening is arranged in a penetrating manner along the length direction of the tube body, the opening comprises a first opening edge and a second opening edge which are oppositely arranged, a convex piece is arranged on the first opening edge, and a concave piece is arranged on the second opening edge; when the convex part is clamped in the concave part, the closed state of the tail fiber protection tube is formed; when the convex part is positioned outside the concave part, the open state of the tail fiber protection tube is formed, so that the structural strength of the tail fiber protection tube and the tail fiber protection device is improved, and the tail fiber placed in the tail fiber protection tube is well protected.

In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Example one

Fig. 1 is a perspective view of a pigtail protection tube according to an embodiment of the present application. Fig. 2 is a partially enlarged view of a portion a in fig. 1. Fig. 3 is a cross-sectional view of a pigtail protection tube provided in an embodiment of the present application in an open state. Fig. 4 is a partially enlarged view of fig. 3 at B. Fig. 5 is a cross-sectional view of a pigtail protection tube provided in an embodiment of the present application in a closed state. Fig. 6 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is in an arc-shaped structure with a circular arc-shaped cross section. Fig. 7 is a schematic view of an arc structure with a parabolic cross section at an end of a male member in a pigtail protection tube according to an embodiment of the present application. Fig. 8 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is an arc-shaped structure with a quincunx cross section. Fig. 9 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is in a triangular prism structure in cross section. Fig. 10 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is in a trapezoidal cross-section and has an angular structure. Fig. 11 is a schematic view of an end portion of a male member in a pigtail protection tube according to an embodiment of the present application, which is in a rectangular prism structure in cross section. Fig. 12 is a perspective view of a pigtail protection device provided in an embodiment of the present application.

Referring to fig. 1 to 5, a pigtail protection tube 100 according to an embodiment of the present application includes a tube body 110 and an opening 120, where the tube body 110 has a corrugated structure, and the opening 120 penetrates through the tube body 110 along a length direction of the tube body 110; the opening 120 includes a first opening edge 121 and a second opening edge 122 disposed opposite to each other, the first opening edge 121 having a convex member 130 disposed thereon, and the second opening edge 122 having a concave member 140 disposed thereon.

When the male member 130 is clamped in the female member 140, the closed state of the pigtail protection tube 100 is formed; when the male member 130 is located outside the female member 140, the open state of the pigtail protection tube 100 is formed.

In this embodiment, the pigtail protection tube 100 is a hollow tubular structure, and may be a hollow round tube. Wherein, the body 110 of the pigtail protection tube 100 is of a corrugated structure arranged along the length direction, and compared with a structure in which the body 110 is arranged on a smooth arc surface, the arrangement of the corrugated structure can significantly increase the structural strength of the pigtail protection tube 100, so that when the pigtail protection tube is extruded by an external heavy object in the using process, the pigtail 200 (see fig. 12) arranged in the pigtail protection tube can be well protected.

In addition, since the tail fiber 200 is elongated, the opening 120 is configured to penetrate through the pipe body 110 in the length direction, so that the tail fiber 200 can be conveniently put into the tail fiber protection pipe 100, and compared with a mode of penetrating the tail fiber 200 into the tail fiber protection pipe 100 through a through hole at the end of the pipe body 110, the mode greatly reduces the laying difficulty in the laying process of the tail fiber 200 and improves the working efficiency.

In addition, in this embodiment, the male member 130 provided on the first opening edge 121 and the female member 140 provided on the second opening edge 122 are used to enhance the structural strength of the pigtail protection tube 100 by the good fit between the male member 130 and the female member 140, thereby protecting the internally placed pigtail 200 well. Specifically, in use, the pigtail protection tube 100 is placed horizontally, and at this time, the male member 130 is located outside the female member 140, that is, the pigtail protection tube 100 is in an open state, and then the pigtail 200 is put into the pigtail protection tube 100 through the opening 120. In this process, the opening 120 can be located neither on the top of the tube body 110 nor on the bottom of the tube body 110, but just on the side of the tube body 110, because such a placement can make the male member 130 just snap into the female member 140 when the tube body 110 of the pigtail protection tube 100 is pressed by a heavy object from above, resulting in effective protection of the pigtail 200 placed in the pigtail protection tube 100. At the same time, this is also done to avoid the upper weight from squeezing the closed structure formed by the male member 130 and the female member 140, which could result in damage to the male member 130 and the female member 140.

As one possible implementation manner, referring to fig. 3 and 4, the female member 140 includes a first rib 141 and a second rib 142 that are oppositely disposed, the first rib 141 is disposed near the outer wall surface of the tube body 110, and the second rib 142 is disposed near the inner wall surface of the tube body 110; the first ribs 141 have a greater protrusion height than the second ribs 142.

It should be noted that, in this embodiment, the female member 140 includes the first protruding rib 141 and the second protruding rib 142, and the first protruding rib 141 and the second protruding rib 142 can limit the position of the male member 130 when the male member 130 is engaged in the female member 140, so as to prevent the male member 130 from slipping off the female member 140, which affects the function of the male member 130 and the female member 140 in the tail fiber protection tube 100. The protruding height of the first protruding ridge 141 close to the outer wall surface of the tube body 110 is greater than the protruding height of the second protruding ridge 142 close to the inner wall surface of the tube body 110, so as to further enhance the limiting protection effect of the first protruding ridge 141 on the male member 130, when the pigtail protection tube 100 is extruded by a heavy object above, the male member 130 can be just clamped in the female member 140, and the male member 130 cannot slide out from the side of the female member 140 close to the first protruding ridge 141 because the protruding height of the first protruding ridge 141 is too low.

As a possible implementation manner, referring to fig. 4, the end of the first rib 141 and the end of the second rib 142 are both circular arc structures.

It should be noted that, the ends of the first rib 141 and the second rib 142 are configured to be in a circular arc structure, and the main purpose of the circular arc structure is to protect the tail fiber 200 (see fig. 12) during the process of putting the tail fiber protection tube 100 in, and to prevent the outer surface of the tail fiber 200 from being scratched if the ends of the first rib 141 and the second rib 142 are configured to be in a sharp corner structure.

As one possible implementation manner, referring to fig. 1 and 2, the pipe body 110 includes a plurality of protrusions 111 and a plurality of recesses 112, and the plurality of protrusions 111 and the plurality of recesses 112 are sequentially connected in a staggered manner to form a corrugated structure of the pipe body 110; the raised portion 111 and the recessed portion 112 each have a first spacing from the male member 130, and the raised portion 111 and the recessed portion 112 each have a second spacing from the female member 140.

It should be noted that, in the present embodiment, in order to enhance the structural strength of the pipe body 110, the pipe body 110 is provided in a corrugated structure, and specifically, the pipe body 110 is provided in a corrugated structure including a plurality of protrusions 111 and a plurality of recesses 112 which are sequentially connected in a staggered manner. Further, since the opening 120 is penetratingly disposed along the length direction of the pipe body 110, the opening 120 includes the first opening edge 121 and the second opening edge 122, and the male member 130 is disposed on the first opening edge 121 and the female member 140 is disposed on the second opening edge 122, in order to avoid the influence of the corrugated structure of the pipe body 110 on the structural strength of the male member 130 and the female member 140, it is necessary to dispose the male member 130 and the female member 140 in a solid structure, i.e., to have the first interval between each of the convex portion 111 and the concave portion 112 and the male member 130 (see the first interval denoted by a1 in fig. 2) and the second interval between each of the convex portion 111 and the concave portion 112 and the female member 140 (see the second interval denoted by a2 in fig. 2).

As a possible implementation manner, referring to fig. 2, when the pigtail protection tube 100 is in an open state, the third distance between the male member 130 and the female member 140 is 0.5-1 mm.

It should be noted that, in this embodiment, when the pigtail protection tube 100 is in the open state, the male member 130 and the female member 140 have a third distance (see the third distance indicated by b in fig. 2), and the third distance is set to a value range of 0.5-1mm, which is mainly for enabling the pigtail 200 (see fig. 12) to be smoothly put into the pigtail protection tube 100 through the opening 120. Illustratively, when the pigtail protection tube 100 is in the open state, the third distance between the male member 130 and the female member 140 may be 0.5mm, 0.7mm, 0.9mm and 1mm, and may also be any value between 0.5 and 1mm, which is not limited in this embodiment, and is specifically determined according to the diameter of the pigtail 200.

As a possible implementation, referring to fig. 6 to 8, the shapes of the male member 130 and the female member 140 are adapted, and the end of the male member 130 has an arc-shaped structure.

It should be noted that, in this embodiment, the end of the male member 130 is a convex arc structure and is matched with the end structure of the female member 140, so that the end of the female member 140 is a concave arc structure, and when the male member 130 is engaged in the female member 140, the arc structure of the end of the male member 130 is exactly matched with the arc structure of the end of the female member 140, so that the female member 140 can limit the engaged male member 130 well. In this embodiment, the end of the male member 130 is configured to be an arc-shaped structure, because in the case of the arc-shaped structure, when the male member 130 and the female member 140 are in contact with each other, the acting force on the male member 130 can be more smoothly and uniformly applied to the female member 140, so as to provide a buffer protection effect on the end of the female member 140.

When the end of the protruding member 130 is an arc-shaped structure, the following three possible implementations are included:

as a first possible implementation, referring to fig. 6, the end of the protruding member 130 is an arc-shaped structure with a circular arc-shaped cross section.

It should be noted that, in this embodiment, the end portion of the male member 130 is an arc-shaped structure with a circular arc-shaped cross section, specifically, the cross-sectional shape of the end portion of the male member 130 may be a quarter circular arc, a half circular arc, a three-quarter circular arc, etc., which is not limited in this embodiment, so as to achieve the purpose of conveniently engaging the end portion of the male member 130 with the end portion of the female member 140. Compared with other arc structures, the arc structure with the arc-shaped cross section at the end of the convex part 130 can facilitate processing and manufacturing.

As a second possible implementation, referring to fig. 7, the end of the convex member 130 is an arc structure having a parabolic cross section.

It should be noted that, in the present embodiment, the end of the male member 130 is configured into an arc structure with a parabolic cross section, which has two functions, on one hand, the end of the male member 130 is conveniently clamped to the end of the female member 140; on the other hand, compared with the arc structure of circular arc shape, the end of the convex member 130 can extend into the deeper position of the end of the concave member 140, so the structure can make the locking effect of the convex member 130 in the concave member 140 better, and the convex member 130 is not easy to slip off.

As a third possible implementation, referring to fig. 8, the end of the male member 130 is an arc structure with a quincunx cross section.

It should be noted that, in the present embodiment, the quincunx arc structure is composed of three arcs, wherein the top of the quincunx forms the end of the male member 130, so as to facilitate the engagement between the male member 130 and the corresponding female member 140. Because the connecting portion between the plum blossom at the top and two plum blossom at the bottom in the quincuncial arc-shaped structure forms two groove structures, when the male member 130 and the corresponding female member 140 are engaged, the two groove structures can well limit the male member 130 and the corresponding female member 140.

As a possible implementation, referring to fig. 9 to 11, the shapes of the male member 130 and the female member 140 are adapted, and the end of the male member 130 is in a prismatic structure; all edges of the male member 130 are rounded.

It should be noted that in the present embodiment, the end of the male member 130 is configured to have an angular structure, and the purpose of the angular structure is to quickly locate the engagement position between the male member 130 and the female member 140, so that the male member 130 is quickly engaged in the female member 140. In order to prevent the edges of the protruding member 130 from scratching the pigtail 200 (see fig. 12), all the edges of the protruding member 130 need to be processed by arc processing.

When the end of the protruding member 130 is in a prismatic structure, the following three possible implementations are included:

as a first possible implementation, referring to fig. 9, the end of the protruding member 130 is a prismatic structure with a triangular cross section.

In this embodiment, the end of the male member 130 is designed to be a triangular prism structure with a triangular cross section, which is convenient for manufacturing and fast fitting the male member 130 with the end of the female member 140.

As a second possible implementation, referring to fig. 10, the end of the protruding member 130 has a trapezoidal cross-section with a corner structure.

It should be noted that, in the embodiment, compared with the case that the end of the male member 130 is set to be the angular structure with a triangular cross section, when the trapezoidal structure is selected, the length of the top side of the trapezoidal structure is smaller than the length of the bottom side of the trapezoidal structure, so that the end of the male member 130 can be inserted into the end of the female member 140 smoothly; on the other hand, the top of the trapezoid is linear instead of point, so that when the end of the male member 130 is engaged with the end of the female member 140, the contact area between the two is larger, and when the pigtail protection tube 100 is pressed by an upper weight, the force from the male member 130 can be more uniformly applied to the female member 140, thereby better protecting the pigtail protection tube 100 from damage.

As a third possible implementation, referring to fig. 11, the end of the protruding member 130 is a prismatic structure with a rectangular cross section.

In this embodiment, compared to the end of the male member 130 being a trapezoid in cross section, the rectangular prism is selected to increase the contact area between the end of the male member 130 and the end of the female member 140, so that when the pigtail protection tube 100 is pressed by an upper weight, the weight of the male member 130 can be more uniformly applied to the female member 140, thereby further protecting the pigtail protection tube 100 from damage.

Example two

Fig. 12 is a perspective view of a pigtail protection device provided in an embodiment of the present application.

In a second aspect, referring to fig. 12, the present application further provides a pigtail protection device, comprising a pigtail 200 and a pigtail protection tube 100, wherein the pigtail 200 is arranged in the pigtail protection tube 100 via an opening 120 of the pigtail protection tube 100.

In this embodiment, the pigtail 200 may be placed in the pigtail protection tube 100 along the length direction through the opening 120 provided in the pigtail protection tube 100 when used. One or more pigtails 200 can be placed in the pigtail protection tube 100, and are particularly flexibly placed according to the tube diameter size and the field use requirement of the pigtail protection tube 100, which is not limited in this embodiment.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. The terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the present application, and do not indicate or imply that the referenced model or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The pigtail protection tube is characterized by comprising a tube body and an opening, wherein the tube body is of a corrugated structure, and the opening penetrates through the tube body along the length direction of the tube body; the opening comprises a first opening edge and a second opening edge which are oppositely arranged, a convex part is arranged on the first opening edge, and a concave part is arranged on the second opening edge;

when the convex part is clamped in the concave part, the closed state of the tail fiber protection tube is formed; and when the convex part is positioned outside the concave part, the open state of the tail fiber protection tube is formed.

2. The pigtail protection tube of claim 1, wherein the female member comprises a first rib and a second rib disposed opposite to each other, the first rib being disposed adjacent to an outer wall surface of the tube body, the second rib being disposed adjacent to an inner wall surface of the tube body;

the height of the first rib is greater than the height of the second rib.

3. The pigtail protection tube of claim 2, wherein the end of the first rib and the end of the second rib are both of a circular arc structure.

4. The pigtail protection tube of claim 3, wherein the tube body comprises a plurality of protrusions and a plurality of recesses, the plurality of protrusions and the plurality of recesses being sequentially connected in a staggered manner to form a corrugated structure of the tube body; the convex part and the concave part are respectively provided with a first distance from the convex part, and the convex part and the concave part are respectively provided with a second distance from the concave part.

5. The pigtail protection tube according to any of claims 1-4, wherein a third distance between the male part and the female part is between 0.5-1mm when the pigtail protection tube is in an open state.

6. The pigtail protection tube of claim 5, wherein the shape of the male member and the female member are adapted, and the end of the male member is of an arc-shaped structure.

7. The pigtail protection tube of claim 6, wherein the end of the male member is an arc-shaped structure having a circular arc-shaped cross section;

or the end part of the convex part is of an arc structure with a parabolic cross section;

or the end part of the convex part is of an arc structure with a quincunx cross section.

8. The pigtail protection tube of claim 5, wherein the shape of the male member and the female member are adapted, and the end of the male member is in a corner-shaped structure;

all edges of the convex part are in circular arc transition.

9. The pigtail protection tube of claim 8, wherein the end of the male member is a prismatic structure with a triangular cross-section;

or the end part of the convex part is of a prismatic structure with a trapezoidal cross section;

or the end part of the convex part is of a prismatic structure with a rectangular cross section.

10. A pigtail protection arrangement comprising a pigtail and a pigtail protection tube according to any of claims 1-9, wherein the pigtail is arranged in the pigtail protection tube via an opening of the pigtail protection tube.

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