Label sleeve for optical fiber connector and electronic label
By designing a label sleeve with an inverted "V" shaped fiber guiding space and a groove structure, the problem of unstable fiber optic connector splicing was solved, achieving stable splicing and efficient identification of fiber optics and fiber optic connectors.
Patent Information
- Application Number
- CN202520049544.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing fiber optic connector label sleeves have different shapes, which leads to unstable splicing. The fiber optic cable is easy to detach from the break point, making it difficult to maintain a stable fit.
Design a tag sleeve with a cavity that runs through both ends and socket cavities of different shapes. Construct an inverted "V" shaped fiber guiding space and a groove structure through a beveled component to improve the fiber limiting capability and ensure that the fiber stably enters and exits the cavity.
It achieves stable splicing of optical fibers and optical fiber connectors, reduces splicing difficulty, and improves the versatility and identification efficiency of label sleeves.
Smart Images
Figure CN223582197U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to optical fiber dumb resource operation and maintenance technical field, more specifically, relate to the label sleeve, electronic tag for optical fiber connector. BACKGROUND
[0002] Optical fiber operation and maintenance need to identify each optical fiber, and the prior art sets up RFID tags on corresponding optical fiber connectors, and identifies the target optical fiber corresponding RFID tag through identification equipment during maintenance.
[0003] In actual application, because different types of optical fiber connectors are different in shape, the prior art sets up different shapes of label sleeve into one, so that a specification of label sleeve can be used to connect various optical fiber connectors, and such label sleeve usually has a large length size, which leads to a relatively long break of the optical fiber used to pass through the label sleeve, and the optical fiber is easy to separate from the label sleeve at the break, which is not conducive to maintaining stable cooperation between the label sleeve and the optical fiber connector. UTILITY MODEL CONTENTS
[0004] The utility model aims at overcoming at least one defect of the prior art, and provides a label sleeve and an electronic tag for an optical fiber connector to reduce the difficulty of sleeving the optical fiber connector and improve the sleeving stability.
[0005] The first aspect of the utility model is to provide a label sleeve, which has a first end face and a second end face at two ends along the length direction of the label sleeve, and has a cavity inside the label sleeve penetrating the first end face and the second end face, the cavity includes a first sleeving cavity and a second sleeving cavity communicating with each other along the length direction, the first sleeving cavity extends from the first end face to the deep part of the cavity, the second sleeving cavity extends from the second end face to the deep part of the cavity, and the first sleeving cavity and the second sleeving cavity have different shapes of cross section.
[0006] The label sleeve is also provided with a break for the optical fiber to enter the first sleeving cavity and the second sleeving cavity, and the break is formed by a first inclined surface member and a second inclined surface member arranged on the label sleeve.
[0007] The first inclined surface member and the second inclined surface member extend along the length direction, and the first inclined surface member and the second inclined surface member are staggered up and down to form an optical fiber guiding space with inverted "V" type cross section, and the gap between the upper parts of the first inclined surface member and the second inclined surface member is configured as the break.
[0008] In the scheme, the optical fiber enters the chamber through the break, and the first sleeve cavity or the second sleeve cavity is sleeved on the optical fiber connector along the optical fiber. The V-shaped optical fiber guide space can expand the limiting capacity of the optical fiber, facilitate the stable limiting of the optical fiber below the break, help the optical fiber to pass through the break from the outside by pressing, and reduce the difficulty of the optical fiber entering the chamber. In addition, the first inclined surface and the second inclined surface are staggered up and down, so that the break extends into the chamber in a way of being inclined relative to the surface of the label sleeve. In this way, the difficulty of the optical fiber aligning with the break from the inside of the chamber can be improved, the optical fiber can be prevented from easily separating from the chamber, and the effect of "easy in and difficult out" of the optical fiber can be realized, thereby improving the stability of the label sleeve on the optical fiber connector.
[0009] In some embodiments, a surface of the first inclined surface towards the inside of the chamber is provided with a first groove extending along the length direction; and / or,
[0010] A surface of the second inclined surface towards the inside of the chamber is provided with a second groove extending along the length direction.
[0011] The first groove or the second groove can improve the elasticity of the first inclined surface or the second inclined surface, facilitate the optical fiber to pass through the break from the outside and enter the chamber, and further facilitate the optical fiber in the chamber to be easily supported in the space of the first groove or the second groove. The radial direction of the optical fiber is limited by the inner wall of the groove. In this way, the difficulty of the optical fiber aligning with the break from the inside of the chamber can be improved, thereby improving the stability of the label sleeve and the optical fiber connector.
[0012] In some embodiments, two side inner walls of the first sleeve cavity are provided with third grooves extending along the length direction of the first sleeve cavity.
[0013] The third groove of the scheme can reduce the thickness of part of the first sleeve cavity, thereby improving the deformation capacity of the first sleeve cavity, and facilitating the optical fiber to pass through the first break and enter or exit the chamber.
[0014] In some embodiments, a limiting piece for abutting against the surface of the optical fiber connector is arranged in the chamber, and the limiting piece is located between the first sleeve cavity and the second sleeve cavity.
[0015] Further, the limiting piece includes a first limiting protrusion, the cross-sectional diameter of the first sleeve cavity is greater than the cross-sectional width of the second sleeve cavity, and the inner wall of the second sleeve cavity in the width direction protrudes relative to the inner wall of the first sleeve cavity to form the first limiting protrusion; and / or,
[0016] The limiting piece includes a second limiting protrusion, the cross-sectional diameter of the first sleeve cavity is greater than the cross-sectional height of the second sleeve cavity, and the inner wall of the second sleeve cavity in the height direction protrudes relative to the inner wall of the first sleeve cavity to form the second limiting protrusion; and / or,
[0017] The limiting member includes a third limiting protrusion. The diameter length of the first socket cavity is smaller than the maximum diagonal length of the second socket cavity. The inner walls of the first socket cavity in its diagonal direction protrude relative to the inner walls of the second socket cavity to form the third limiting protrusion.
[0018] In this solution, when the label sleeve sleeves a fiber optic connector with a cross-sectional shape adapted to the first socket cavity, the first limiting protrusion and / or the second limiting protrusion can tightly abut against the surface of the fiber optic connector, playing the role of a limiting member; similarly, when the label sleeve sleeves a fiber optic connector with a cross-sectional shape adapted to the second socket cavity, the third limiting protrusion can tightly abut against the surface of the fiber optic connector, playing the role of a limiting member.
[0019] In some embodiments, the cross-section of the first socket cavity is circular, and the cross-section of the second socket cavity is rectangular.
[0020] The first socket cavity of this solution is suitable for sleeving a fiber optic connector with a rectangular cross-section, and the second socket cavity is suitable for sleeving a fiber optic connector with a circular cross-section, improving the versatility of the label sleeve.
[0021] In some embodiments, the cross-section of the first socket cavity is circular, and the cross-section of the second socket cavity is "convex" shaped. The height and width of the "convex" shape have the same length dimension, and the width of the upper rectangle of the "convex" shape is the same as the height of the lower rectangle of the "convex" shape.
[0022] In this solution, the first socket cavity is suitable for sleeving a fiber optic connector with a rectangular cross-section, and the second socket cavity is suitable for sleeving a fiber optic connector with a circular cross-section. Among them, in the first socket cavity, the wide rectangular space at the lower part of the "convex" shape is suitable for sleeving a fiber optic connector with a rectangular cross-section whose long side is placed horizontally, and the narrow rectangular space formed by the upper rectangle of the "convex" shape and its part extending to the bottom is suitable for sleeving a fiber optic connector with a rectangular cross-section whose long side is placed vertically. Thus, when facing fiber optic connectors with rectangular cross-sections in different arrangement ways, the first socket cavity can adopt the same mating angle, and thus, the identification marks set at fixed positions on the label sleeve can also maintain the same orientation, reducing the difficulty of identifying the label by the identification device and improving the versatility of the label sleeve.
[0023] In some embodiments, the cross-section of the first socket cavity is circular, and the cross-section of the second socket cavity is "cross" shaped. The width of the horizontal part of the "cross" shape is the same as the height of the vertical part of the "cross" shape, and the height of the horizontal part of the "cross" shape is the same as the width of the vertical part of the "cross" shape.
[0024] In the scheme, the first socket cavity is suitable for socketing the optical fiber connector with rectangular cross section, and the second socket cavity is suitable for socketing the optical fiber connector with circular cross section, wherein, in the first socket cavity, the rectangular space of the horizontal part of the "cross" is suitable for socketing the rectangular cross section optical fiber connector with horizontal long side, and the rectangular space of the vertical part of the "cross" is suitable for socketing the rectangular cross section optical fiber connector with vertical long side, so that when facing the rectangular cross section optical fiber connectors with different arrangement modes, the first socket cavity can adopt the same matching angle, so that the markers arranged at the fixed position of the label sleeve can also keep the same orientation, thereby reducing the difficulty of identifying the label by the identification equipment and improving the versatility of the label sleeve.
[0025] In some embodiments, the first end face or other surface close to the first end face of the label sleeve is provided with a first identification part.
[0026] In some embodiments, the second end face or other surface close to the second end face of the label sleeve is provided with a second identification part.
[0027] Through the first identification part and / or the second identification part, the worker can distinguish the first socket cavity and the second socket cavity, so as to quickly adjust the orientation of the label sleeve according to the actual type of the optical fiber connector, so that the matched socket cavity faces the optical fiber connector for socketing.
[0028] In some embodiments, the surface of the label sleeve is provided with a mounting position for mounting a label.
[0029] The second aspect of the utility model provides an electronic tag, including RFID label and the label sleeve, RFID label is located the surface of label sleeve.
[0030] Compared with the prior art, the utility model has the advantages that: the "V"-shaped optical fiber guiding space can expand the limiting capacity of the optical fiber, which helps to press the optical fiber through the breakage from the outside, reduces the difficulty of the optical fiber entering the chamber, and the first inclined surface and the second inclined surface are arranged in an up-down staggered manner, so that the breakage extends into the chamber in an inclined manner relative to the surface of the label sleeve, thereby improving the difficulty of aligning the breakage from the inside of the chamber, achieving the effect of "easy in and difficult out" of the optical fiber, and improving the stability of the label sleeve on the optical fiber connector; by setting the first socket cavity as a "convex" cross section or a "cross" cross section, the first socket cavity can adopt the same matching angle to socket the rectangular cross section optical fiber connectors with different arrangement modes, thereby reducing the matching difficulty and improving the versatility of the label sleeve. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 For the structure of example 1 Figure 1 .
[0032] Figure 2Structure of Example 1 Figure 2 .
[0033] Figure 3 Structure of Example 1 Figure 3 .
[0034] Figure 4 Structure of Example 2
[0035] Label sleeve 1, RFID label 2, first end surface 3, second end surface 4, cavity 5, first sleeve connecting cavity 6, second sleeve connecting cavity 7, break 8, first inclined surface 9, second inclined surface 10, first groove 11, second groove 12, third groove 13, first limiting protrusion 14, second limiting protrusion 15, third limiting protrusion 16, first identification part 17, second identification part 18, mounting position 19. DETAILED DESCRIPTION
[0036] The drawings of the utility model are only used for exemplary illustration, and cannot be understood as the limitation of the utility model. In order to better illustrate the following embodiments, some components of the drawings can be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.
[0037] Example 1
[0038] As shown in Figures 1-3 The utility model provides a label sleeve, and the label sleeve has a first end surface 3 and a second end surface 4 at two ends along the length direction of the label sleeve, the label sleeve has a cavity 5 penetrating through the first end surface 3 and the second end surface 4 inside, the cavity 5 includes a first sleeve connecting cavity 6 and a second sleeve connecting cavity 7 communicating front and back along the length direction, the first sleeve connecting cavity 6 extends from the first end surface 3 to the deep part of the cavity 5, the second sleeve connecting cavity 7 extends from the second end surface 4 to the deep part of the cavity 5, and the first sleeve connecting cavity 6 and the second sleeve connecting cavity 7 have different cross sections;
[0039] The label sleeve is also provided with a break 8 for the optical fiber to enter the first sleeve connecting cavity 6 and the second sleeve connecting cavity 7, and the break 8 is formed by a first inclined surface 9 and a second inclined surface 10 arranged on the label sleeve.
[0040] The first inclined surface 9 and the second inclined surface 10 extend along the length direction, and the first inclined surface 9 and the second inclined surface 10 are staggered up and down to form an optical fiber guiding space in the inverted "V" type cross section, wherein the gap between the upper parts of the first inclined surface 9 and the second inclined surface 10 is structured as the break 8.
[0041] In specific implementation, in order to facilitate the entry of the optical fiber, the first inclined surface member 9 and the second inclined surface member 10 are arranged on the bottom surface of the label sleeve, and the extension lengths of the two are the same as the length of the label sleeve itself. In this way, the gap between the first inclined surface member 9 and the second inclined surface member 10 is configured to be located on the bottom surface of the label sleeve and the port penetrating through the first end surface 3 and the second end surface 4. In use, the method of holding the optical fiber and pressing it to the label sleeve or the method of holding the label sleeve and pressing it to the optical fiber can both facilitate the entry of the optical fiber into the cavity 5 through the breakage 8, reducing the difficulty of sleeving. In specific implementation, in order to facilitate the entry of the optical fiber and adapt to clamping the optical fiber connector, the label sleeve is made of a material with a certain elasticity.
[0042] In specific application, without cutting off the connection between the optical fiber connector and the adapter, according to the specific type of the optical fiber connector, the sleeving cavity suitable for the optical fiber connector to be sleeved is selected, the optical fiber is held and pressed to the label sleeve or the label sleeve is held and pressed to the optical fiber, so that the optical fiber connected to the optical fiber connector enters the cavity 5 through the breakage 8. Then, the label sleeve makes the first sleeving cavity 6 or the second sleeving cavity 7 sleeve onto the optical fiber connector along the optical fiber. The V-shaped optical fiber guide space can expand the limiting capacity of the optical fiber, facilitate the stable limiting of the optical fiber below the breakage 8, and help the optical fiber to pass through the breakage 8 from the outside by pressing, reducing the difficulty of the entry of the optical fiber into the cavity 5. In addition, the first inclined surface member 9 and the second inclined surface member 10 are staggered up and down, so that the breakage 8 extends into the cavity 5 in a way inclined to the surface of the label sleeve. In this way, the difficulty of aligning the optical fiber from the inside of the cavity 5 to the breakage 8 can be improved, the optical fiber can be prevented from easily escaping from the cavity 5, and the effect of "easy in and difficult out" of the optical fiber can be achieved, improving the stability of the label sleeve fitted on the optical fiber connector.
[0043] As shown in Figures 1-3 , the surface of the first inclined surface member 9 facing the inside of the cavity 5 is provided with a first groove 11 extending along the length direction.
[0044] Continuing to refer to Figures 1-3 , the surface of the second inclined surface member 10 facing the inside of the cavity 5 is provided with a second groove 12 extending along the length direction.
[0045] It can be understood that through the first groove 11 or the second groove 12, the deformation capacity of the first inclined surface member 9 or the second inclined surface member 10 can be improved, facilitating the rapid entry of the optical fiber from the outside into the cavity 5 by applying a pressing force. In addition, the optical fiber fitted in the cavity 5 is easy to be supported in the space of the first groove 11 or the second groove 12 under the action of gravity. The radial direction of the optical fiber is limited by the inner wall of the groove, avoiding the alignment of the optical fiber from the inside of the cavity 5 to the breakage 8, thereby improving the fitting stability of the label sleeve and the optical fiber connector.
[0046] Referring to Figure 2The two side inner walls of the first socket cavity 6 are provided with third grooves 13 extending along the length direction of the third grooves 13, so that the thickness of the first socket cavity 6 is reduced, the deformation ability of the first socket cavity 6 is improved, and the optical fiber can pass through the breakage 8 to enter the cavity 5.
[0047] Reference Figures 1-3 In some embodiments, the cross section of the first socket cavity 6 is circular, and the cross section of the second socket cavity 7 is "convex" shape, the height and the width of the "convex" shape have the same length size, and the width of the upper rectangle of the "convex" shape and the height of the lower rectangle of the "convex" shape have the same length size.
[0048] In specific use, the second socket cavity 7 is suitable for socketing the optical fiber connector with rectangular cross section (such as SC type optical fiber connector), and the first socket cavity 6 is suitable for socketing the optical fiber connector with circular cross section (such as FC type optical fiber connector), wherein in the second socket cavity 7, the wide rectangular space of the lower part of the "convex" shape is suitable for socketing the rectangular cross section optical fiber connector with horizontal long side, and the narrow rectangular space formed by the upper part of the "convex" shape and the part extending to the bottom is suitable for socketing the rectangular cross section optical fiber connector with vertical long side, so that the second socket cavity 7 can adopt the same fitting angle when facing the rectangular cross section optical fiber connectors with different arrangement modes, so that the identification object arranged at the fixed position of the label sleeve can also keep the same orientation, the difficulty of identifying the label by the identification device is reduced, and the versatility of the label sleeve is improved. Specifically, referring to Figure 4 For example, the identification object is RFID tag 2, and the identification object is usually arranged on the top surface of the label sleeve 1, so that when the identification device is directed to the label sleeve 1 from top to bottom, the identification object can be directly identified, and the identification efficiency is effectively improved. It can be seen that the label sleeve of the utility model can adapt to different types of optical fiber connectors or optical fiber connectors with different setting directions, and has good adaptability.
[0049] In other embodiments, the cross section of the first socket cavity 6 is circular, and the cross section of the second socket cavity 7 is "cross" shape, the width of the horizontal part of the "cross" shape and the height of the vertical part of the "cross" shape have the same length size, and the height of the horizontal part of the "cross" shape and the width of the vertical part of the "cross" shape have the same length size.
[0050] In a specific application, the second socket cavity 7 is adapted to socket a fiber connector with a rectangular cross section, and the first socket cavity 6 is adapted to socket a fiber connector with a circular cross section. Similar to the embodiment with a "convex" cross section, in the second socket cavity 7, the rectangular space of the horizontal part of the "cross" is adapted to socket a rectangular cross section fiber connector with its long side horizontally placed, and the rectangular space of the vertical part of the "cross" is adapted to socket a rectangular cross section fiber connector with its long side vertically placed. Thus, the second socket cavity 7 can adopt the same mating angle when facing different arrangements of the rectangular cross section fiber connector, and the marker on the label sleeve can also keep the same orientation, which reduces the difficulty of identifying the label by the identification device and improves the versatility of the label sleeve.
[0051] In some other embodiments, the first socket cavity 6 has a circular cross section, and the second socket cavity 7 has a rectangular cross section. The second socket cavity 7 is adapted to socket a fiber connector with a rectangular cross section, and the first socket cavity 6 is adapted to socket a fiber connector with a circular cross section.
[0052] Reference Figures 1-3 The chamber 5 is internally provided with a limiting member for abutting against the surface of the fiber connector, and the limiting member is located between the first socket cavity 6 and the second socket cavity 7.
[0053] In a specific implementation, continuing to refer to Figure 2 , 3 The cross section diameter of the first socket cavity 6 is greater than the width of the "convex" cross section of the second socket cavity 7, so that, continuing to refer to Figure 2 , the inner wall of the second socket cavity 7 in the width direction is protruded relative to the inner wall of the first socket cavity 6 to form a first limiting protrusion 14, so that when the label sleeve sockets the circular cross section fiber connector through the first socket cavity 6, the limiting protrusion can abut against the surface of the fiber connector to play the role of the limiting member; or, the cross section diameter of the first socket cavity 6 is greater than the height of the "convex" cross section of the second socket cavity 7, so that the inner wall of the second socket cavity 7 in the height direction is protruded relative to the inner wall of the first socket cavity 6 to form a second limiting protrusion 15, so that when the label sleeve sockets the circular cross section fiber connector through the first socket cavity 6, the limiting protrusion can abut against the surface of the fiber connector to play the role of the limiting member. In addition, the diameter of the first socket cavity 6 is less than the diagonal length of the rectangular space of the lower part of the "convex" cross section of the second socket cavity 7, so that, referring to Figure 3 , the inner wall of the first socket cavity 6 in the diagonal direction is protruded relative to the inner wall of the second socket cavity 7 to form a third limiting protrusion 16, so that when the label sleeve sockets the rectangular cross section fiber connector through the second socket cavity 7, the limiting protrusion can abut against the surface of the fiber connector to play the role of the limiting member.
[0054] Reference Figure 1, and / or, the second end face 4 or other surface of the label sleeve close to the second end face 4 is provided with a second identification part 18. In specific implementation, in order to facilitate viewing, the first identification part 17 and the second identification part 18 are both arranged on the top surface of the label sleeve, and the first identification part 17 is close to the first end face 3, and the second identification part 18 is close to the second end face 4. In order to more intuitively identify the matching type of the sleeve cavity, the first identification part 17 can be specifically a rectangular piece, and the second identification part 18 can be specifically a circular piece.
[0055] In order to simplify the processing method, with reference to Figure 2 、 3 , the first end face 3 and the second end face 4 of the embodiment are of the same shape, and if only the first end face 3 or the second end face 4 is observed to observe the shape of the sleeve cavity, there is a possibility of misjudgment, and the efficiency is low. Through the first identification part 17 and / or the second identification part 18, the worker can quickly determine the matching type of the sleeve cavity, so as to quickly adjust the orientation of the label sleeve according to the actual type of the fiber connector, so that the matching sleeve cavity faces the fiber connector for sleeving.
[0056] With reference to Figure 1 , in order to facilitate the setting of the label, the surface of the label sleeve is provided with a mounting position 19. In specific implementation, in order to improve the mounting stability, the mounting position 19 is a mounting cavity formed by concave on the upper end face of the label sleeve 1.
[0057] Embodiment 2
[0058] As shown in Figure 4 , the embodiment 2 provides an electronic label based on the embodiment 1, which comprises an RFID label 2 and the label sleeve 1 of the embodiment 1, and the RFID label 2 is arranged on the surface of the label sleeve 1.
[0059] In specific implementation, in order to ensure good mounting stability, the upper end face of the label sleeve 1 is concave to form a mounting position 19, and the RFID label 2 is embedded in the mounting position 19.
[0060] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the technical scheme of the utility model, and are not a limitation on the specific implementation of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model claim shall be included in the protection scope of the utility model claim.
Claims
1. A label sleeve for a fiber optic connector, the label sleeve comprising: The label sleeve has a first end face and a second end face at two ends along a length direction of the label sleeve, and has a cavity inside the label sleeve, the cavity penetrating the first end face and the second end face, and including a first sleeve joint cavity and a second sleeve joint cavity which are communicated in sequence along the length direction, the first sleeve joint cavity extending from the first end face to a deep part of the cavity, and the second sleeve joint cavity extending from the second end face to the deep part of the cavity, the first sleeve joint cavity and the second sleeve joint cavity having different shapes of cross sections; The label sleeve is further provided with a breakage for an optical fiber to enter the first sleeve joint cavity and the second sleeve joint cavity, and the breakage is formed by a first inclined surface member and a second inclined surface member arranged on the label sleeve; The first inclined surface member and the second inclined surface member both extend along the length direction, and the first inclined surface member and the second inclined surface member are staggered in up and down directions to form an optical fiber guiding space in a shape of inverted "V", wherein a gap between the first inclined surface member and the second inclined surface member in the up direction forms the breakage.
2. The label sleeve of claim 1, wherein The first inclined surface member is provided with a first groove extending along the length direction on a surface thereof facing the inside of the cavity; and / or The second inclined surface member is provided with a second groove extending along the length direction on a surface thereof facing the inside of the cavity.
3. The label sleeve of claim 1, wherein Two side inner walls of the first sleeve joint cavity are provided with third grooves extending along a length direction of the third grooves.
4. The label sleeve of claim 1, wherein The inside of the cavity is provided with a limiting member for abutting against a surface of an optical fiber connector, and the limiting member is located between the first sleeve joint cavity and the second sleeve joint cavity.
5. The label sleeve of claim 4, wherein, The limiting member includes a first limiting protrusion, a cross section diameter of the first sleeve joint cavity is greater than a cross section width of the second sleeve joint cavity, and an inner wall of the second sleeve joint cavity in a width direction thereof protrudes relative to an inner wall of the first sleeve joint cavity to form the first limiting protrusion; and / or The limiting member includes a second limiting protrusion, a cross section diameter of the first sleeve joint cavity is greater than a cross section height of the second sleeve joint cavity, and an inner wall of the second sleeve joint cavity in a height direction thereof protrudes relative to an inner wall of the first sleeve joint cavity to form the second limiting protrusion; and / or The limiting member includes a third limiting protrusion, a cross section diameter of the first sleeve joint cavity is less than a maximum diagonal length of the second sleeve joint cavity, and an inner wall of the first sleeve joint cavity in a diagonal direction thereof protrudes relative to an inner wall of the second sleeve joint cavity to form the third limiting protrusion.
6. The label sleeve according to any one of claims 1 to 5, characterized in that The cross section of the first sleeve joint cavity is circular, and the cross section of the second sleeve joint cavity is rectangular.
7. A label sleeve according to any one of claims 1 to 5, characterised in that The cross section of the first sleeve joint cavity is circular, the cross section of the second sleeve joint cavity is "convex" shaped, a height of the "convex" shaped is of the same length dimension as a width of the "convex" shaped, and a width of a top rectangle of the "convex" shaped is of the same length dimension as a height of a bottom rectangle of the "convex" shaped.
8. A label sleeve according to any one of claims 1 to 5, characterised in that The cross section of the first sleeve joint cavity is circular, the cross section of the second sleeve joint cavity is "cross" shaped, a width of a horizontal part of the "cross" shaped is of the same length dimension as a height of a vertical part of the "cross" shaped, and a height of the horizontal part of the "cross" shaped is of the same length dimension as a width of the vertical part of the "cross" shaped.
9. The label sleeve according to any one of claims 1 to 5, characterized in that The first end face or the other surface of the label sleeve close to the first end face is provided with a first identification part; and / or, The second end face or the other surface of the label sleeve close to the second end face is provided with a second identification part; and / or, The surface of the label sleeve is provided with a mounting position for mounting a label.
10. An electronic tag, characterized by The label sleeve according to any one of claims 1-9, wherein an RFID tag is arranged on the surface of the label sleeve.