A water-soluble self-breaking strap
By using a water-soluble self-cutting cable tie design, water-sensitive and water-blocking elements are utilized to achieve automatic cutting of the cable tie in emergency situations. This solves the problem that existing cable ties are not suitable for drowning rescue and improves safety and ease of use in emergency situations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIYAN XUNTIAN TECH DEV CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
AI Technical Summary
Existing cable ties are difficult to cut quickly in emergency situations, are inconvenient to use and costly, and are not suitable for water rescue.
Design a water-soluble self-breaking strap that uses a water-sensitive element to dissolve in water, causing the two straps to separate automatically. Combined with a water-blocking element and a humidity indicator, it ensures safe use in humid environments.
It achieves automatic disconnection in emergency situations, is suitable for water rescue, has a simple structure and high safety, and is applicable to scenarios such as drone water rescue.
Smart Images

Figure CN224448793U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tie technology, specifically a water-soluble self-breaking cable tie. Background Technology
[0002] Cable ties, also known as wire ties, cable bundles, or locking straps, are straps used to bundle things together. Existing cable ties lack a quick-cutting function, making them unsuitable for emergency situations requiring rapid cutting, and thus offering lower safety.
[0003] To address the aforementioned issues, Chinese patent documents "Cable Tie with Cutting Structure" (patent application number: 202411416831.7) and "Self-Cutting Cable Tie" (patent application number: 202321141674.4) disclose cable ties with self-cutting functionality. However, these solutions still suffer from the following drawbacks:
[0004] 1. The above-mentioned institutions still require manual operation, which is inconvenient to use.
[0005] 2. The structure is complex and the manufacturing cost is high.
[0006] 3. Not applicable to water rescue. Utility Model Content
[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a water-soluble self-breaking strap, which has a simple structure and the water-sensitive element dissolves when it comes into contact with water, and the two straps automatically separate, making it particularly suitable for the field of drowning rescue.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a water-soluble self-breaking strap, comprising at least two strap sections, with a protective sleeve connecting each pair of adjacent strap sections; the protective sleeve has a hollow structure and is provided with two through holes; one end of each of the two strap sections extends into the interior of the protective sleeve through the two through holes and is connected together by a water-sensitive element; when water enters the protective sleeve, the water-sensitive element dissolves upon contact with water, and the two strap sections automatically separate.
[0009] A further improvement is that the water-sensitive element is in the form of a block or thin film structure, with the ends of the two strips respectively embedded in the water-sensitive element.
[0010] A further improvement is that a water-blocking element is provided inside the protective sleeve near the through hole.
[0011] A further improvement is that: the water-blocking element is made of a water-absorbing and swelling material; the water-sensitive element is made of a water-soluble material; and the belt body is made of a non-water-absorbing material.
[0012] A further improvement is that the end of the belt passes through the water-blocking element and is connected to the water-sensitive element, and a protective gap is left between the water-sensitive element and the water-blocking element.
[0013] A further improvement is that the protective sleeve has a transparent tubular structure.
[0014] A further improvement is that a humidity indicator element is installed inside the protective cover.
[0015] A further improvement is that the humidity indicator element is a humidity test strip, which is placed on the water-sensitive element.
[0016] A further improvement is that connecting rings are provided at the opposite ends of the two belts; the water-sensitive element includes a water-soluble ring, which is connected to the two connecting rings respectively.
[0017] A further improvement is that: connecting rings are respectively provided at opposite ends of the two belts; the water-sensitive element includes a connecting belt, and water-soluble rings are respectively provided at both ends of the connecting belt, and the water-soluble rings are connected to the corresponding connecting rings.
[0018] The beneficial effects of this utility model are as follows:
[0019] 1. In this utility model, the water-sensitive element dissolves upon contact with water, and the two belts automatically separate, making it particularly suitable for the field of water rescue (such as drone water rescue).
[0020] 2. In this utility model, the water-blocking element absorbs water and expands, preventing water or water vapor from entering further and protecting the water-sensitive element.
[0021] 3. In this utility model, the humidity indicator element uses color to indicate the ambient humidity. Once the humidity exceeds the standard, it means that the device will fail and should be used with caution. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of the water-soluble self-breaking strap in Embodiment 1 of this utility model;
[0023] Figure 2 for Figure 1 Top view.
[0024] Figure 3 This is a schematic diagram of the structure of the water-sensitive element in Embodiment 2 of this utility model;
[0025] Figure 4 This is a schematic diagram of the structure of the water-sensitive element in Embodiment 3 of this utility model;
[0026] Figure label:
[0027] 1-Protective sleeve; 11-Through hole; 2-Body; 21-Connecting ring; 3-Water-sensitive element; 31-Water-soluble ring; 32-Connecting strap; 4-Water-blocking element; 5-Humidity indicator element. Detailed Implementation
[0028] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0029] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.
[0030] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. Example
[0031] See Figure 1 and Figure 2 As shown, this utility model embodiment provides a water-soluble self-breaking strap, including at least two strap sections 2, with a protective sleeve 1 connected between each pair of adjacent strap sections 2;
[0032] The protective sleeve 1 has a hollow structure and is provided with two through holes 11;
[0033] One end of each of the two belt bodies 2 extends into the interior of the protective sleeve 1 through the two through holes 11 and is connected together by the water-sensitive element 3; when water enters the protective sleeve 1, the water-sensitive element 3 dissolves upon contact with water, and the two belt bodies 2 automatically separate.
[0034] Specifically, the water-sensitive element 3 has a block or thin-film structure, with the ends of the two strips 2 respectively embedded in the water-sensitive element 3. The water-sensitive element 3 is made of water-soluble materials, such as polyvinyl alcohol (PVA), sodium carboxymethyl cellulose (CMC), starch, gelatin, etc. It has high strength when dry and can withstand a certain tensile force, but its strength decreases, and it disintegrates or even dissolves when exposed to water.
[0035] Specifically, a water-blocking element 4 is installed inside the protective sleeve 1 near the through hole 11. The water-blocking element 4 is made of a water-absorbing and swelling material, such as superabsorbent polymer (SAP), bentonite, or superabsorbent polymer (SAP). It can absorb a large amount of water and increase in volume, preventing a small amount of rainwater from further seeping into the protective sleeve 1. The end of the strap 2 passes through the water-blocking element 4 and connects to the water-sensitive element 3, with a protective gap between the water-sensitive element 3 and the water-blocking element 4 to prevent the water-sensitive element from contacting any seeping water.
[0036] Specifically, the protective sleeve 1 has a transparent tubular structure. A humidity indicator 5 is installed inside the protective sleeve 1. The humidity indicator 5 is a humidity test strip, which is placed on the water-sensitive element 3. The humidity indicator uses color to indicate the ambient humidity; if the humidity exceeds the standard, the device will malfunction and should be used with caution.
[0037] Specifically, the belt body 2 is made of non-absorbent materials, such as various plastics, metal wires, and plant fibers. It has a certain strength and can withstand a certain tensile force. The belt body is divided into two or more sections, which are connected by water-sensitive elements and have high connection strength. Example
[0038] See Figure 3 As shown, the structure of this embodiment is basically the same as that of embodiment one, except that in this embodiment, the two belt bodies 2 are respectively provided with connecting rings 21 at their opposite ends; the water-sensitive element 3 includes a water-soluble ring 31, which is connected to the two connecting rings 21 respectively. Example
[0039] See Figure 4 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, except that in this embodiment, the two belt bodies 2 are respectively provided with connecting rings 21 at their opposite ends; the water-sensitive element 3 includes a connecting belt 32, and water-soluble rings 31 are respectively provided at both ends of the connecting belt 32, and the water-soluble rings 31 are connected to the corresponding connecting rings 21.
[0040] The working principle of this utility model is as follows:
[0041] In humid environments, even in rain, a small amount of water may seep into the protective sleeve along the exposed strip. It will first encounter the water-blocking element, which will absorb water and expand, preventing water or moisture from entering further and protecting the water-sensitive element.
[0042] Once fully submerged in water, the water-blocking element becomes saturated and fails due to the large amount of water. Water enters the protective sleeve, causing the water-sensitive element to disintegrate or dissolve in the water, greatly reducing the connection strength. The strap can then break under external pulling force.
[0043] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0044] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.
Claims
1. A water-soluble self-cutting bandage comprising at least two band portions (2), characterized in that: A protective sleeve (1) is connected between each pair of adjacent belts (2); The protective sleeve (1) has a hollow structure and is provided with two through holes (11). One end of each of the two belts (2) extends into the interior of the protective sleeve (1) through the two through holes (11) and is connected together by the water-sensitive element (3); when water enters the protective sleeve (1), the water-sensitive element (3) dissolves in the water and the two belts (2) automatically separate.
2. The water-soluble self-severing bandage of claim 1, wherein: The water-sensitive element (3) has a block or thin film structure, and the ends of the two strips (2) are respectively embedded in the water-sensitive element (3).
3. The water-soluble self-severing bandage of claim 1, wherein: A water-blocking element (4) is provided inside the protective sleeve (1) near the through hole (11).
4. The water-soluble self-severing bandage of claim 3, wherein: The water-blocking element (4) is made of a water-absorbing and swelling material; the water-sensitive element (3) is made of a water-soluble material; and the belt body (2) is made of a non-water-absorbing material.
5. The water-soluble self-severing bandage of claim 4, wherein: The end of the belt (2) passes through the water-blocking element (4) and is connected to the water-sensitive element (3), and a protective gap is left between the water-sensitive element (3) and the water-blocking element (4).
6. The water-soluble self-breaking strap according to claim 1, characterized in that: The protective sleeve (1) has a transparent tubular structure.
7. The water-soluble self-severing bandage of claim 6, wherein: The protective cover (1) is equipped with a humidity indicator element (5).
8. The water-soluble self-severing bandage of claim 7, wherein: The humidity indicator element (5) is a humidity test strip, which is placed on the water-sensitive element (3).
9. The water-soluble self-severing bandage of claim 1, wherein: The two belts (2) are respectively provided with connecting rings (21) at opposite ends; the water-sensitive element (3) includes a water-soluble ring (31), which is connected to the two connecting rings (21) respectively.
10. The water-soluble self-severing bandage of claim 1, wherein: The two belts (2) are respectively provided with connecting rings (21) at opposite ends; the water-sensitive element (3) includes a connecting belt (32), and the two ends of the connecting belt (32) are respectively provided with water-soluble rings (31), and the water-soluble rings (31) are connected to the corresponding connecting rings (21).