Underwater power assisting device
By designing the leg strap mounting components and membrane components, the problems of large size of water assist devices and inconvenience of walking on land were solved, realizing a portable water assist device that can adapt to different leg sizes, thus improving the convenience of rescue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李安邦
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-08
AI Technical Summary
Existing water-assisted devices are complex in structure and large in size, making them inconvenient to carry and affecting the experience of walking on land, thus increasing the difficulty of rescue.
It adopts a design with leg strap mounting parts and membrane components. The leg strap mounting parts are equipped with multiple sets of mounting parts and positioning mechanisms, while the membrane components provide resistance in water, do not take up space on land, and can be modularly adapted to different leg sizes.
The device has been miniaturized, making it easy to carry without affecting the experience of walking on land, thus improving the convenience and applicability of rescue operations.
Smart Images

Figure CN224207331U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of swimming aids, specifically a water assist device. Background Technology
[0002] Swimming is a common sport. With the continuous progress of society and the enrichment of people's daily lives, more and more people are starting to swim. However, beginners often face certain safety hazards when swimming due to inadequate skills. Therefore, beginners usually wear various swimming aids while swimming. At the same time, during rescue operations, rescuers need to assist drowning victims and therefore require greater buoyancy, so they also usually wear such swimming aids.
[0003] Patent CN206183898 discloses a water-assisted device. When the leg is lifted, the outer wooden board rotates downwards around the hinge axis under the pressure of the water above until it compresses the spring to its limit position. When the leg is pressed down, the fishing line limits the maximum opening and closing angle, allowing the outer wooden board to bear force over the largest area, providing buoyancy and preventing the person from sinking in the water. However, it still has certain problems, as detailed below:
[0004] When in use, this water assist device uses a spring-connected rotating outer wooden board. This design results in a complex overall structure and a large external volume, making it inconvenient to carry or use in conjunction with other equipment. Furthermore, when walking on land, the outer wooden board tends to rotate independently due to human movement and gravity, making walking on land during breaks in swimming quite inconvenient and requiring improvement in user experience. This is especially problematic for rescue teams, who often need to wear this type of equipment at the assembly point or when moving to a rescue point on land, as this device often increases the difficulty of their work in these situations. Utility Model Content
[0005] To overcome the above-mentioned defects, this utility model provides a water-assisted device, which solves the problems of the large external size of existing water-assisted devices, making them inconvenient to carry, and the poor experience of walking on land, which increases the difficulty of rescue.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a water assist device, comprising a leg strap mounting component, wherein mounting portions are uniformly mounted on the outer side of the leg strap mounting component, and a thin film component is mounted on the end of the mounting portion away from the leg strap mounting component;
[0007] The leg strap mounting piece is provided with a positioning mechanism for connecting itself to each other.
[0008] As a further embodiment of this utility model: the cross-sectional shape of the leg strap mounting component is an incomplete circular ring, and the edge of the inner sidewall of the leg strap mounting component is arc-shaped.
[0009] As a further embodiment of this utility model: the cross-sectional shape of the mounting part is an inverted "V" shape, and the two adjacent sets of mounting parts are staggered.
[0010] As a further embodiment of this utility model: the length of the bottom edge of the film component is greater than the distance between the two ends of the bottom of the mounting part, and the film component and the mounting part are integrally manufactured.
[0011] As a further embodiment of this utility model: the positioning mechanism includes an open compartment, which is evenly installed on the outer side of the leg strap mounting piece near the bottom end, and a first rope passage hole is provided on both sides inside the open compartment.
[0012] As a further embodiment of this utility model: the positioning mechanism further includes a fixing block, the fixing block is evenly installed on the outer side of the leg binding installation piece near the top, the fixing block has a second rope passage hole on both sides, the fixing block has a positioning block installed on the top, and the positioning block has a third rope passage hole on both sides.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. The leg strap mounting piece has multiple mounting sections, each with a membrane component. The length of the bottom edge of the membrane component is greater than the distance between the two ends of the bottom of the mounting section, allowing the membrane component to form an inverted pocket shape. When moving upward or forward in water, the membrane component adheres to the leg strap mounting piece due to water pressure, reducing resistance. When moving downward or backward in water, the membrane component fills with water, increasing resistance. At the same time, due to the staggered arrangement of adjacent mounting sections, the multiple mounting sections can work together to provide sufficient and even resistance. In addition, the membrane component is small in size, lightweight, and has a simple structure, without causing excessive expansion of the device, making the device easy to carry, not occupying the wearing space of other equipment, and not significantly affecting the experience of walking on land.
[0015] 2. The leg binding mounting piece is equipped with a positioning mechanism, which allows it to be modularized during use. Users can combine two or more sets of mounting pieces according to their own leg length, thus greatly increasing the applicability of the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a utility model Figure 1 A magnified structural diagram at point A;
[0018] Figure 3 This is a side view of the mounting section of this utility model.
[0019] Figure 4 This is a schematic diagram of the combined use structure of the leg-binding mounting component of this utility model;
[0020] Figure 5 This is a side sectional view of the combined use of the leg-binding mounting component of this utility model;
[0021] Figure 6 This is a utility model Figure 5 A magnified structural diagram at point B.
[0022] In the diagram: 1. Leg strap mounting component; 2. Mounting part; 3. Membrane component; 4. Opening compartment; 5. First rope passage hole; 6. Fixing block; 7. Second rope passage hole; 8. Positioning block; 9. Third rope passage hole. Detailed Implementation
[0023] The technical solution of this patent will be further described in detail below with reference to specific embodiments. Example 1
[0024] like Figures 1-6 As shown, this utility model provides a technical solution:
[0025] A water assist device includes a leg brace 1. The cross-sectional shape of the leg brace 1 is an incomplete circle, and the edge of the inner sidewall of the leg brace 1 is arc-shaped. The leg brace 1 is made of an elastic material with a certain degree of toughness, such as hard leather, canvas, or elastic and lightweight rubber or plastic, so that when in use, the user can open the notch of the leg brace 1 and tie the leg brace 1 to the leg for use.
[0026] The outer side of the leg strap mounting component 1 is uniformly equipped with mounting parts 2. A membrane component 3 is installed at the end of the mounting part 2 away from the leg strap mounting component 1. The cross-sectional shape of the mounting part 2 is an inverted "V" shape, and the two adjacent sets of mounting parts 2 are staggered. The mounting parts 2 can be attached to the leg strap mounting component 1 by adhesive. When moving downward or backward in the water, water fills the interior of the membrane component 3. Due to the staggered distribution of the two adjacent sets of mounting parts 2, the resistance formed by the membrane component 3 on the leg strap mounting component 1 is more evenly distributed. At the same time, the two adjacent sets of membrane components 3 will be filled by the water below in the first time, and are less likely to cause mutual interference.
[0027] The length of the bottom edge of the membrane component 3 is greater than the distance between the two ends of the bottom of the mounting part 2, and the membrane component 3 and the mounting part 2 are integrally manufactured. This means that under normal conditions, the bottom of the membrane component 3 has a certain redundant length relative to the mounting part 2, which allows the membrane component 3 to be filled with water and expand when moving downward or backward in the water, thereby creating resistance. Both the mounting part 2 and the membrane component 3 are made of soft and tough materials, thus ensuring strength during use. Example 2
[0028] Based on the above embodiment 1, as Figures 1-6 As shown, the leg binding mounting piece 1 is provided with a positioning mechanism for interconnection among itself. The positioning mechanism includes an opening compartment 4, which is evenly installed on the outer side of the leg binding mounting piece 1 near the bottom end. The opening compartment 4 has a first rope passage hole 5 on both sides inside. The opening compartment 4 is installed on the leg binding mounting piece 1 by adhesive. In use, the user can pass the binding rope through the first rope passage hole 5 on the multiple opening compartments 4, and then further bind the remaining part of the rope to the leg, thereby fixing the part of the leg binding mounting piece 1 near the bottom to the leg for use.
[0029] The positioning mechanism also includes a fixing block 6, which is evenly installed on the outer side of the leg-binding mounting piece 1 near the top. The fixing block 6 has second rope passage holes 7 on both sides, and a positioning block 8 is installed on the top of the fixing block 6. The positioning block 8 has third rope passage holes 9 on both sides. In use, the binding rope can be passed through multiple sets of second rope passage holes 7 to bind the part of the leg-binding mounting piece 1 near the top to the leg. At the same time, when multiple sets are used together, the positioning block 8 on the lower leg-binding mounting piece 1 can be inserted into the opening compartment 4 on the upper leg-binding mounting piece 1. Then, when fixing the bottom of the upper leg-binding mounting piece 1, the binding rope can be passed through the first rope passage hole 5 and the third rope passage hole 9, thereby fixing the upper leg-binding mounting piece 1 and connecting the two sets of leg-binding mounting pieces 1 together, avoiding easy sliding and obstruction. Furthermore, the side of the positioning block 8 near the leg-binding mounting piece 1 is inclined to avoid it from hitting the leg and causing unnecessary injury to the user.
[0030] The working principle of this utility model is as follows: The leg binding device 1 is placed over the leg. The binding rope is then passed through the first rope through hole 5 on the multiple sets of open compartments 4 on the leg binding device 1 to fix the bottom part of the leg binding device 1 to the leg. Subsequently, the binding rope is passed through the second rope through hole 7 on the multiple sets of fixing blocks 6 on the leg binding device 1 to fix the top part of the leg binding device 1 to the leg, thus completing the binding task. When the person rises or moves forward in the water, the membrane 3 adheres to the leg binding device 1 under the action of water pressure, so that no resistance is formed. When the person descends or moves backward in the water, the membrane 3 is squeezed and expanded under the relative movement of the person and the water, and water fills the membrane 3, providing sufficient and uniform resistance, thereby ensuring the safety of the user.
[0031] When users combine multiple sets of leg binding components 1 according to their needs, they can first bind one set of leg binding components 1 to the upper part of the leg using binding ropes and fixing blocks 6 near the top of the leg binding components 1. Then, another set of leg binding components 1 is joined to the first set of leg binding components 1 from bottom to top, ensuring that the positioning block 8 is inserted into the opening compartment 4 of the first set of leg binding components 1. Finally, the two sets of leg binding components 1 are fully bound to the leg using binding ropes.
[0032] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A water-assisted device, comprising a leg-binding mounting component (1), characterized in that: The outer side of the leg brace (1) is uniformly equipped with mounting parts (2), and a thin film (3) is installed at the end of the mounting part (2) away from the leg brace (1). The leg-binding installation component (1) is provided with a positioning mechanism for interconnecting itself.
2. The underwater assist device according to claim 1, characterized in that, The cross-sectional shape of the leg-binding installation component (1) is an incomplete circular ring, and the edge of the inner sidewall of the leg-binding installation component (1) is arc-shaped.
3. The underwater assist device according to claim 1, characterized in that, The cross-sectional shape of the mounting part (2) is an inverted "V" shape, and the two adjacent sets of mounting parts (2) are staggered.
4. The underwater assist device according to claim 1, characterized in that, The length of the bottom edge of the film part (3) is greater than the distance between the two ends of the bottom of the mounting part (2), and the film part (3) and the mounting part (2) are integrally manufactured.
5. The underwater assist device according to claim 1, characterized in that, The positioning mechanism includes an open compartment (4), which is evenly installed on the outer side of the leg strap mounting piece (1) near the bottom end. The two sides inside the open compartment (4) are provided with first rope passage holes (5).
6. The underwater assist device according to claim 5, characterized in that, The positioning mechanism also includes a fixing block (6), which is evenly installed on the outer side of the leg binding assembly (1) near the top. The fixing block (6) has a second rope passage hole (7) on both sides. The fixing block (6) has a positioning block (8) installed on the top and a third rope passage hole (9) on both sides.