Low-smoke halogen-free high-flame-retardant wrapping tape

Abstract

The utility model relates to the technical field of flame-retardant wrapping tapes, in particular to a low-smoke halogen-free high-flame-retardant wrapping tape, which comprises a wrapping tape roll core and a wrapping tape body wound between the outer walls of the wrapping tape roll core, a plurality of marking strips are parallelly filled on the outer surface of the wrapping tape body, the marking strips are equidistantly arranged along the extension direction of the wrapping tape body, and the marking strips are arranged on the outer surface of the wrapping tape roll core. A rotation stopping mechanism is arranged between the inner walls of the wrapping tape roll core, the rotation stopping mechanism comprises a rotation stopping sleeve, the outer wall of the rotation stopping sleeve and the inner wall of the wrapping tape roll core are mutually clamped, and one end of the rotation stopping sleeve is fixedly connected with a limiting circular ring; winding marking is carried out on the wrapping tape body in the winding process through the marking strips which are arranged on the outer surface of the wrapping tape body in the extending direction at equal intervals in parallel in a filling mode, when the wrapping tape body and the marking strips are excessively tightened in the winding process, the marking strips are thickened or have linear modeling changes, and the changes can be obviously observed; and the winding progress of the wrapping belt body is adaptively adjusted according to the change, so that the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of flame-retardant wrapping technology, specifically a low-smoke, halogen-free, and highly flame-retardant wrapping. Background Technology

[0002] Low-smoke halogen-free, high-flame-retardant wrapping tape is a flame-retardant material used for wires and cables. It features low smoke, halogen-free properties, and high flame retardancy, and is widely used in power, telecommunications, and rail transportation industries to ensure the safety and environmental friendliness of cables in fires. This tape is suitable for the production of various halogen-free, low-smoke, flame-retardant cables, such as power cables, control cables, communication cables, and rail transportation cables. It can be used as a wrapping tape and fire-retardant layer for cables, improving their flame-retardant performance and safety.

[0003] For example, patent publication number CN220208607U provides a low-smoke halogen-free high flame-retardant wrapping tape, relating to the field of high flame-retardant wrapping tapes. It includes multiple low-smoke halogen-free high flame-retardant wrapping tape segments, with elastic flame-retardant strips positioned between these segments. Friction protrusions are fixedly connected to the upper surface of the elastic flame-retardant strips, and these friction protrusions are also multiple and evenly fixed to the elastic flame-retardant strips. In this invention, when the cable expands due to heat, the elastic flame-retardant strip connected to the high flame-retardant wrapping tape is stretched under stress, thereby improving the elasticity of the high flame-retardant wrapping tape.

[0004] The high flame-retardant wrapping tape and elastic flame-retardant tape in the above-mentioned device are manufactured by extrusion through a hot pressing device. However, during the cable production process, the high flame-retardant wrapping tape or elastic flame-retardant tape will always deform due to uneven winding speed. Since the deformation of the strip-shaped high flame-retardant wrapping tape and elastic flame-retardant tape is not significant, the winding progress between the wrapping tape and the cable cannot be judged and adjusted based on the deformation of the high flame-retardant wrapping tape or elastic flame-retardant tape.

[0005] Therefore, a low-smoke, halogen-free, and highly flame-retardant wrapping tape is proposed to address the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies and solve the problem that during the cable production process, uneven winding speeds cause deformation of the high flame-retardant wrapping tape or elastic flame-retardant tape when it is wrapped around the cable wall, and that the deformation of strip-shaped high flame-retardant wrapping tape and elastic flame-retardant tape is not significant, thus making it impossible to judge and adjust the winding progress between the wrapping tape and the cable based on the deformation of the high flame-retardant wrapping tape or elastic flame-retardant tape, a low-smoke halogen-free high flame-retardant wrapping tape is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The low-smoke halogen-free high flame-retardant wrapping tape of this utility model includes a wrapping tape core and a wrapping tape body wound between its outer walls. The outer surface of the wrapping tape body is filled with a plurality of marking strips in parallel. The plurality of marking strips are equidistantly arranged along the extension direction of the wrapping tape body. An anti-rotation mechanism is provided between the inner walls of the wrapping tape core. The anti-rotation mechanism includes an anti-rotation sleeve. The outer wall of the anti-rotation sleeve is engaged with the inner wall of the wrapping tape core. One end of the anti-rotation sleeve is fixedly connected to a limiting ring. A first positioning ring and a second positioning ring are fitted between the outer walls of the anti-rotation sleeve. An anti-rotation slider is fixedly connected between the inner walls of the first ring. The anti-rotation slider is slidably installed between the grooves on the outer wall of the anti-rotation sleeve. One side of the second positioning ring is attached to one end of the wrapping tape core by adhesive.

[0008] Preferably, the first positioning ring has multiple limiting protrusions fixed to the side wall near the second positioning ring. The multiple limiting protrusions are installed at equal angles along the outer periphery of the first positioning ring. The second positioning ring has multiple limiting grooves on the side wall near the first ring. The multiple limiting grooves are installed at equal angles along the outer periphery of the second positioning ring. The limiting grooves can engage with the limiting protrusions.

[0009] Preferably, a compression spring is fitted on the outer wall of the anti-rotation sleeve, and the compression spring is located between the adjacent side walls of the limiting ring and the first positioning ring.

[0010] Preferably, the other end of the anti-rotation sleeve has an annular opening on its outer wall, and an annular gear is fitted between the annular grooves on the outer wall of the annular opening.

[0011] Preferably, the sidewall of the annular opening is provided with multiple mounting grooves, and each of the multiple mounting grooves is equipped with an anti-detachment component. The multiple anti-detachment components are installed at equal angles along the outer periphery of the anti-spin sleeve.

[0012] Preferably, the anti-detachment component includes an anti-detachment buckle, one end of the rotating shaft of the anti-detachment buckle is fitted into the circular groove on the side wall of the annular opening, and the other end of the shaft of the limiting buckle is fixedly connected to a notched gear, which can mesh with the annular gear.

[0013] Preferably, an arc-shaped spring is installed between the arc-shaped sidewalls of the limiting buckle, and one end of the arc-shaped spring is fixedly connected to the arc-shaped inner wall of the mounting groove.

[0014] Preferably, a rubber pad is fitted to the inner wall of the anti-rotation sleeve.

[0015] The beneficial effects of this utility model are:

[0016] 1. In this utility model, the winding process of the wrapping tape is marked by marking strips that are equally spaced and parallel to each other on the outer surface of the wrapping tape in the extension direction. When the wrapping tape and the marking strips are excessively taut during the winding process, the marking strips become thicker or change into a straight shape. This change can be clearly observed, and the winding progress of the wrapping tape can be adaptively adjusted according to this change, thereby increasing the practicality of the device.

[0017] 2. In this utility model, the mutual engagement between the ring gear and the anti-detachment component is achieved through the mutual cooperation between the wrapping tape core and the anti-rotation mechanism. When the anti-rotation mechanism is installed relative to the winding rotation structure, the rotation state of the wrapping tape core can be controlled by adjusting the engagement state between the limiting protrusion and the limiting groove, thereby limiting the winding of the wrapping tape body and preventing the wrapping tape body from being wasted due to the rotation of the wrapping tape core and the wrapping tape body during the non-winding process, thus increasing the rationality of the device structure. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a perspective view of the wrapping tape core and the wrapping tape body in this utility model;

[0021] Figure 3 This is a perspective view of the anti-rotation mechanism of this utility model;

[0022] Figure 4 This is a three-dimensional view showing a partial disassembly of the anti-rotation mechanism of this utility model;

[0023] Figure 5 This is a perspective view of the anti-detachment component in this utility model;

[0024] Legend:

[0025] 1. Strap core; 11. Strap body; 12. Marking strip; 2. Anti-rotation mechanism; 21. Anti-rotation sleeve; 211. Limiting ring; 22. First positioning retaining ring; 23. Second positioning retaining ring; 221. Anti-rotation slider; 222. Limiting protrusion; 231. Limiting groove; 24. Compression spring; 212. Annular opening; 3. Ring gear; 213. Mounting groove; 4. Anti-detachment component; 41. Anti-detachment buckle; 42. Notched gear; 43. Arc spring; 5. Rubber pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Specific implementation examples are given below.

[0028] Please see Figure 1 - Figure 5 This utility model provides a low-smoke, halogen-free, and highly flame-retardant wrapping tape, comprising a wrapping tape core 1 and a wrapping tape body 11 wound between its outer walls. Multiple marking strips 12 are parallelly filled on the outer surface of the wrapping tape body 11, and the marking strips 12 are equidistantly arranged along the extension direction of the wrapping tape body 11. An anti-rotation mechanism 2 is provided between the inner walls of the wrapping tape core 1. The anti-rotation mechanism 2 includes an anti-rotation sleeve 21, the outer wall of which engages with the inner wall of the wrapping tape core 1. One end of the anti-rotation sleeve 21 is fixedly connected to a limiting ring. 211. A first positioning ring 22 and a second positioning ring 23 are fitted between the outer walls of the anti-rotation sleeve 21. An anti-rotation slider 221 is fixedly connected between the inner walls of the first ring. The anti-rotation slider 221 is slidably installed between the grooves on the outer walls of the anti-rotation sleeve 21. One side of the second positioning ring 23 is glued to one end of the wrapping tape core 1. A plurality of limiting protrusions 222 are fixedly connected to the side wall of the first positioning ring 22 near the side wall where the second positioning ring 23 is located. The plurality of limiting protrusions 222 are along the first positioning ring 22. A first positioning ring is installed at equal angles along its outer periphery. A second positioning ring 23 has multiple limiting grooves 231 on its side wall near the first ring. These grooves are equally spaced along the outer periphery of the second positioning ring 23. The grooves 231 can engage with limiting protrusions 222. When the first positioning ring 22 is fitted onto the anti-rotation sleeve 21, it engages with the limiting grooves 231 on the second positioning ring 23, which is attached to one end of the wrapping tape core 1, via the limiting protrusions 222. When they are engaged, the anti-rotation sleeve 21 and the wrapping tape core 1 are rotated and limited. When the limiting protrusion 222 disengages from the limiting groove 231, the anti-rotation sleeve 21 can rotate relative to the wrapping tape core 1. The marking strips 12, which are equally spaced and parallel to the outer surface of the wrapping tape body 11 in the extension direction, mark the wrapping process of the wrapping tape body 11. When the wrapping tape body 11 and the marking strips 12 are excessively taut during the wrapping process, the marking strips 12 become thicker or undergo a change in straight shape, and this change can be clearly observed.

[0029] like Figure 3 and Figure 4As shown, a compression spring 24 is fitted onto the outer wall of the anti-rotation sleeve 21. The compression spring 24 is located between the adjacent side walls of the limiting ring 211 and the first positioning ring 22. The compression spring 24 installed between the limiting ring 211 and the first positioning ring 22 provides an elastic force for the first positioning ring 22 and the second positioning ring 23 to move closer to each other, so that the first positioning ring 22 of the anti-rotation mechanism 2 always has an elastic force to move relative to the second positioning ring 23 and to lock and limit its movement. 2. The anti-rotation slider 221 slides against the outer groove of the anti-rotation sleeve 21, which prevents relative rotation between the first positioning ring 22 and the anti-rotation sleeve 21. When the anti-rotation mechanism 2 is not needed to limit the rotation of the wrapping core 1 and the wrapping body 11, the first positioning ring 22 is pressed to overcome the elastic force of the compression spring 24, so that the pull rod on the side wall of the limiting ring 211 engages with the recess on the outer wall of the first positioning ring 22. At this time, the first positioning ring 22 remains disengaged from the second positioning ring 23.

[0030] like Figure 3 As shown, the other end of the anti-spin sleeve 21 has an annular opening 212 on its outer wall. A ring gear 3 is fitted between the annular grooves on the outer wall of the annular opening 212. The side wall of the annular opening 212 has multiple mounting grooves 213. Anti-detachment components 4 are installed inside the multiple mounting grooves 213. The multiple anti-detachment components 4 are installed at equal angles along the outer circumference of the anti-spin sleeve 21. The anti-spin sleeve 21 is installed with the ring gear 3 that can be linked with each anti-detachment component 4 through the annular ring on the side wall of the annular opening 212. The anti-detachment components 4, which limit the other end of the wrapping core 1 and the anti-spin mechanism 2, are installed inside the mounting grooves 213.

[0031] like Figure 3 , Figure 4 and Figure 5As shown, the anti-detachment component 4 includes an anti-detachment buckle 41. One end of the rotating shaft of the anti-detachment buckle 41 is fitted into the circular groove on the side wall of the annular opening 212. The other end of the shaft of the limiting buckle is fixedly connected to a notched gear 42, which can mesh with the annular gear 3. An arc spring 43 is installed between the arc-shaped side walls of the limiting buckle. One end of the arc spring 43 is fixedly connected to the arc-shaped inner wall of the mounting groove 213. A rubber pad 5 is fitted against the inner wall of the anti-rotation sleeve 21. Under the elastic force of the arc spring 43, the anti-detachment buckle 41 always has an outward expansion elastic force. When the anti-detachment buckle 41 expands outward, it is in contact with one end of the wrapping tape core 1. The interlocking mechanism prevents the anti-rotation sleeve 21 from detaching from the tape core 1. Each anti-detachment component 4 meshes with the ring gear 3 via a notched gear 42, which causes the anti-detachment buckles 41 to rotate in linkage. This allows the locking state between each anti-detachment buckle 41 and one end of the tape core 1 to be controlled by moving a single anti-detachment buckle 41, thereby enabling the installation or removal of the tape core 1 and the anti-rotation sleeve 21. The device interlocks with the shaft that controls the overall movement and rotation of the control device through the rubber pad 5 inside the anti-rotation sleeve 21, and the friction of the rubber pad 5 prevents the anti-rotation sleeve 21 from rotating relative to it.

[0032] Working principle: When the first positioning ring 22, fitted outside the anti-rotation sleeve 21, engages with the limiting groove 231 on the second positioning ring 23 attached to one end of the wrapping tape core 1 via the limiting protrusion 222, the anti-rotation sleeve 21 and the wrapping tape core 1 are rotated and limited. When the limiting protrusion 222 disengages from the limiting groove 231, the anti-rotation sleeve 21 can rotate relative to the wrapping tape core 1. The marking strips 12, which are evenly spaced and parallel to the outer surface of the wrapping tape body 11 in the extension direction, mark the wrapping process of the wrapping tape body 11. When the wrapping tape body 11 and the marking strips 12 are excessively taut during the wrapping process, the marking strips 12 become thicker or change their straight shape. The change is clearly observable. The compression spring 24 installed between the limiting ring 211 and the first positioning ring 22 provides an elastic force for the first positioning ring 22 and the second positioning ring 23 to move closer together. This ensures that the first positioning ring 22 of the anti-rotation mechanism 2 always has an elastic force that limits the movement of the second positioning ring 23 and engages with it. The first positioning ring 22 slides against the outer groove of the anti-rotation sleeve 21 through the anti-rotation slider 221, preventing relative rotation between the first positioning ring 22 and the anti-rotation sleeve 21. When the anti-rotation mechanism 2 is not needed to limit the rotation of the wrapping core 1 and the wrapping body 11, pressing... The first positioning ring 22 overcomes the elastic force of the compression spring 24, causing the side wall pull rod of the limiting ring 211 to engage with the outer wall recess of the first positioning ring 22. At this time, the first positioning ring 22 remains disengaged from the second positioning ring 23. The anti-rotation sleeve 21 installs the ring gear 3, which can be linked with each anti-detachment component 4, through the annular opening 212 side wall ring. The anti-detachment component 4, which limits the other end of the wrapping tape core 1 and the anti-rotation mechanism 2, is installed inside the mounting groove 213. Under the elastic force of the arc spring 43, the anti-detachment buckle 41 always has an outward expansion elastic force. When the anti-detachment buckle 41 expands outward, it engages with the... One end of the tape core 1 is interlocked to prevent the anti-rotation sleeve 21 from detaching from the tape core 1. Each anti-detachment component 4 is engaged with the ring gear 3 through the notched gear 42, which makes the anti-detachment buckles 41 rotate and linked. This allows the interlocking state between each anti-detachment buckle 41 and one end of the tape core 1 to be controlled by moving a single anti-detachment buckle 41, thereby realizing the installation or removal between the tape core 1 and the anti-rotation sleeve 21. The device is interlocked with the shaft of the control device through the rubber pad 5 inside the anti-rotation sleeve 21, and the friction of the rubber pad 5 prevents the anti-rotation sleeve 21 from rotating relative to it.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A low-smoke, halogen-free, high-flame-retardant wrapping tape, comprising a wrapping tape core (1) and a wrapping tape body (11) wound between its outer walls, characterized in that: The outer surface of the tape body (11) is filled with multiple marking strips (12) in parallel. The multiple marking strips (12) are equidistantly arranged along the extension direction of the tape body (11). An anti-rotation mechanism (2) is provided between the inner walls of the tape core (1). The anti-rotation mechanism (2) includes an anti-rotation sleeve (21). The outer wall of the anti-rotation sleeve (21) is engaged with the inner wall of the tape core (1). One end of the anti-rotation sleeve (21) is fixedly connected to a limiting ring (211). A first positioning ring (22) and a second positioning ring (23) are fitted between the outer walls of the anti-rotation sleeve (21). An anti-rotation slider (221) is fixedly connected between the inner walls of the first positioning ring (22). The anti-rotation slider (221) is slidably installed between the grooves on the outer wall of the anti-rotation sleeve (21). One side of the second positioning ring (23) is attached to one end of the tape core (1) with glue.

2. The low-smoke, halogen-free, high flame-retardant wrapping tape according to claim 1, characterized in that: The first positioning ring (22) is fixedly connected to a plurality of limiting protrusions (222) near the side wall where the second positioning ring (23) is located. The plurality of limiting protrusions (222) are installed at equal angles along the outer periphery of the first positioning ring. The second positioning ring (23) is provided with a plurality of limiting circular grooves (231) near the side wall where the first ring is located. The plurality of limiting circular grooves (231) are provided at equal angles along the outer periphery of the second positioning ring (23). The limiting circular grooves (231) can engage with the limiting protrusions (222).

3. The low-smoke, halogen-free, high flame-retardant wrapping tape according to claim 2, characterized in that: The outer wall of the anti-rotation sleeve (21) is fitted with a compression spring (24), which is located between the adjacent side walls of the limiting ring (211) and the first positioning ring (22).

4. The low-smoke, halogen-free, high flame-retardant wrapping tape according to claim 3, characterized in that: The other end of the anti-rotation sleeve (21) has an annular opening (212) on its outer wall, and an annular gear (3) is fitted between the annular grooves on the outer wall of the annular opening (212).

5. The low-smoke, halogen-free, high flame-retardant wrapping tape according to claim 4, characterized in that: The annular opening (212) has multiple mounting grooves (213) on its sidewall. Each of the mounting grooves (213) is equipped with an anti-detachment component (4). The multiple anti-detachment components (4) are installed at equal angles along the outer periphery of the anti-spin sleeve (21).

6. The low-smoke, halogen-free, high flame-retardant wrapping tape according to claim 5, characterized in that: The anti-detachment component (4) includes an anti-detachment buckle (41). One end of the rotating shaft of the anti-detachment buckle (41) is fitted into the side wall groove of the annular opening (212). The other end of the shaft of the anti-detachment buckle (41) is fixed with a notched gear (42). The notched gear (42) can mesh with the annular gear (3).

7. The low-smoke, halogen-free, high flame-retardant wrapping tape according to claim 6, characterized in that: An arc spring (43) is installed between the arc-shaped sidewalls of the anti-detachment buckle (41), and one end of the arc spring (43) is fixedly connected to the arc-shaped inner wall of the mounting groove (213).

8. The low-smoke, halogen-free, high flame-retardant wrapping tape according to claim 7, characterized in that: A rubber pad (5) is fitted to the inner wall of the anti-rotation sleeve (21).

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