A weight-bearing wearing device based on superabsorbent material and a preparation method thereof

Abstract

The application discloses a weight-bearing wearing device based on high water-absorbing material and a preparation method thereof. The weight-bearing wearing device comprises a wearable main body and a water-absorbing weight-increasing structure. The wearable main body is internally provided with a sandwich layer as one or more weight chambers. One or more water-absorbing weight-increasing structures are arranged in part or all of the weight chambers. The wearable main body is provided with a water inlet connected to the weight chambers. Each weight chamber provided with the water-absorbing weight-increasing structure is correspondingly provided with a water inlet. The water-absorbing weight-increasing structure comprises water-absorbing material. The application achieves the effect that the product keeps a light weight state in the factory, storage and logistics transportation stages by arranging the water-absorbing weight-increasing structure loaded with dry water-absorbing material in the weight chamber and increasing the weight by water injection in use, thereby significantly reducing the transportation weight and logistics billing weight of a single product, reducing the transportation cost, and being especially suitable for e-commerce and cross-regional transportation scenarios.

Description

Technical Field

[0001] This invention belongs to the field of weight-bearing equipment technology, specifically relating to a weight-bearing wearable device based on highly absorbent material and its preparation method. Background Technology

[0002] Weight-bearing devices are a type of sports assistive equipment that increases the local load on the body to improve training intensity and muscle endurance. Common forms include weighted vests, weighted wrist straps, weighted waist belts, and weighted leg wraps. These devices typically use a counterweight structure inside the wearer to allow the user to bear additional weight during running, jumping, or strength training, thereby enhancing training effects.

[0003] In existing technologies, weight-bearing wearable devices often use pre-installed solid counterweights such as metal blocks, lead blocks, steel plates, or sandbags to increase weight. These structures reach the target training weight at the time of product shipment, resulting in a large individual product weight. During warehousing and logistics transportation, the product remains in a high-weight state, increasing not only handling intensity but also significantly raising the billing weight and transportation costs. In e-commerce sales and cross-regional transportation scenarios, high-weight products increase transportation expenses and, to some extent, affect the product's market competitiveness. Furthermore, rigid metal blocks or high-density sandbags have a fixed volume and rigid shape, which can easily create localized pressure during wear, making it difficult to fully conform to the body's curves and resulting in poor comfort during prolonged use.

[0004] To reduce transport weight, some existing technologies use water injected directly into a sealed cavity to temporarily increase weight during use. While this structure can reduce transport weight to some extent, the injected liquid water is prone to sloshing and inertial impact when the user runs, jumps, or engages in high-intensity training. This can lead to a shift in the center of gravity and unstable load, affecting the stability of training movements and even posing safety hazards. Furthermore, the repeated impact of water on the inner wall of the cavity may accelerate material fatigue or create leakage risks, reducing product durability.

[0005] Furthermore, in direct-filling structures, when the cavity contains filling material or the local space is relatively narrow, the area near the inlet is prone to local blockage due to the material absorbing water and expanding, or water flow concentrating. This affects the diffusion of water into the deeper parts of the cavity, resulting in uneven weight gain in different areas. Users often need to repeatedly adjust the position or fill the cavity multiple times, making the operation cumbersome and difficult to achieve a uniform and controllable weight gain effect. Additionally, if the inlet structure is poorly designed, granular materials inside the cavity may overflow from the opening during water filling or shaking, affecting the product's cleanliness and reusability.

[0006] Furthermore, existing weight-bearing wearable devices often employ a single, integral chamber structure or a simple stacking arrangement for internal weight distribution, failing to precisely differentiate the stress characteristics of different body parts. This can easily lead to problems such as concentrated or uneven weight distribution. When the weight distribution is unreasonable, it not only affects the stability of the garment but may also increase the burden on the shoulders or local muscle groups, reducing exercise comfort and coordination.

[0007] Therefore, how to reduce the overall weight of the product during the manufacturing, warehousing and transportation stages while ensuring the target training weight, thereby reducing logistics costs; at the same time, avoiding instability caused by free water sloshing, and improving weight gain uniformity, structural reliability and wearing comfort, has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0008] The purpose of this invention is to provide a weight-bearing wearable device based on highly absorbent materials and its preparation method.

[0009] In a first aspect, the present invention provides a weight-bearing wearable device based on a highly absorbent material, comprising a wearable body and a water-absorbing weight-increasing structure. The wearable body has a sandwich layer serving as one or more counterweight chambers. One or more water-absorbing weight-increasing structures are disposed in some or all of the counterweight chambers. The wearable body has a water inlet connecting to the counterweight chambers. Each counterweight chamber with a water-absorbing weight-increasing structure has a corresponding water inlet. The water-absorbing weight-increasing structure comprises a water-absorbing material. Water can be injected into the counterweight chambers through the water inlets, causing the water-absorbing material to absorb water and increase its weight, thereby increasing the weight of the weight-bearing wearable device.

[0010] Preferably, the water-absorbing and weight-increasing structure further includes a water-soluble bag made of water-soluble material. The water-absorbing material is disposed inside the water-soluble bag.

[0011] Preferably, the opening of the water-soluble bag is closed after the absorbent material is filled in, forming a completely closed structure.

[0012] Preferably, the outer side of the water-soluble bag is bonded and fixed to the inner surface of the counterweight chamber.

[0013] Preferably, the adhesive used to bond the outer surface of the water-soluble bag to the inner surface of the counterweight cavity is a water-soluble adhesive.

[0014] Preferably, the absorbent material is a highly absorbent polymer that forms a hydrogel after absorbing water.

[0015] Preferably, the inner surface of the counterweight chamber is provided with a waterproof layer.

[0016] Preferably, the wearable body includes a two-layer structure and two waterproof layers located between the two-layer structure. The edges of the two-layer structure and the two waterproof layers are provided with edging structures, so that the two waterproof layers enclose a counterweight chamber.

[0017] Preferably, the inlet is provided with a water-permeable and overflow-proof structure. The water-permeable and overflow-proof structure is configured to allow water to pass through while preventing absorbent material from being discharged from the inlet.

[0018] Preferably, the water-permeable spill prevention structure uses a water-permeable bag. The water-permeable bag has a single opening. The edge of the opening of the water-permeable bag is fixed to the wearable body and surrounds the water inlet.

[0019] Preferably, the material of the water-permeable bag is a fabric with water-permeable properties.

[0020] Preferably, the permeable overflow prevention structure adopts a fluid check structure.

[0021] Preferably, the inlet is provided with a sealing structure. The sealing structure is configured to repeatedly open and close the inlet.

[0022] Preferably, the sealing structure uses a zipper.

[0023] Preferably, a water injection auxiliary structure is also included. The water injection auxiliary structure is a funnel or a syringe. The water injection auxiliary structure is configured to inject water into the counterweight chamber through an inlet.

[0024] Preferably, the weight-bearing device is any one of a vest, sleeved fitness clothing, wristband, waist belt, or leg wraps.

[0025] Preferably, the wearable body is a vest body including a back structure and a shoulder strap structure. The weight chamber includes a back weight chamber in the back structure and a shoulder strap weight chamber in the shoulder strap structure. The back weight chamber and / or the shoulder strap weight chamber are provided with a water-absorbing weight-increasing structure.

[0026] Preferably, the back weight chamber is provided with five water-absorbing weight-increasing structures. Each shoulder strap weight chamber is provided with two water-absorbing weight-increasing structures. In each back weight chamber, one water-absorbing weight-increasing structure is located at the center of the back weight chamber, and the other four water-absorbing weight-increasing structures are distributed at the four corners of the back weight chamber. In each shoulder strap weight chamber, the two water-absorbing weight-increasing structures are arranged at intervals along the length of the shoulder strap.

[0027] Preferably, both shoulder strap structures are provided with connecting straps. One end of the connecting strap is sewn and fixed to the corresponding shoulder strap. The other end of the connecting strap is provided with a plug-in structure. The plug-in structures of the connecting straps connected to the two shoulder straps are mutually matched.

[0028] Secondly, the present invention provides a method for preparing a weight-bearing wearable device, which is used to prepare the aforementioned weight-bearing wearable device; the preparation method includes:

[0029] Two layers of structural material and two waterproof layers are stacked together and cut according to the shape of the wearable body to obtain a four-layer structure, with two waterproof layers placed between the two structural layers.

[0030] Cut out the water inlet from one of the four-layer structures and its adjacent waterproof layer.

[0031] The absorbent material is placed into a water-soluble bag, and the opening of the water-soluble bag is sealed to form a water-absorbing and weight-increasing structure.

[0032] One or more water-absorbing weight-increasing structures are placed between two waterproof layers.

[0033] The edges of the four-layer structure are wrapped to create a counterweight chamber with closed edges between the two waterproof layers.

[0034] Preferably, a reinforcing ring structure is fixed around the inlet on the surface layer and the waterproof layer. A sealing structure is then installed at the inlet.

[0035] The present invention has the following beneficial effects.

[0036] 1. This invention achieves the effect of keeping the product lightweight during the manufacturing, warehousing, and logistics transportation stages by setting a water-absorbing weight-increasing structure with dry water-absorbing material in the counterweight chamber and adding weight by injecting water during use. This significantly reduces the transportation weight and logistics charge weight of a single product, thereby reducing transportation costs. It is especially suitable for e-commerce and cross-regional transportation scenarios.

[0037] 2. This invention utilizes the technical feature of a highly absorbent polymer material that forms a semi-solid gel structure after absorbing water, thereby locking the water within the polymer network and preventing the formation of a free-flowing liquid. This effectively prevents water sloshing and inertial impact during activities such as running and jumping, thus improving the stability and safety of the weight-bearing wearable device.

[0038] 3. This invention uses a water-soluble bag to cover the absorbent material and utilizes its delayed dissolution and release upon contact with water to prevent the rapid expansion of particles at the inlet from blocking the water flow channel. This ensures that the injected water can fully diffuse within the counterweight chamber, achieving uniform water absorption at all locations, reducing the difficulty of water injection for users and improving the uniformity of weight gain.

[0039] 4. This invention achieves the effects of preventing particle overflow, maintaining structural cleanliness, and ensuring reliable reuse by setting a permeable and overflow-proof structure at the water inlet, allowing water to enter the counterweight chamber while effectively blocking the water-absorbing material. At the same time, it improves the controllability of the water injection process and the safety of use.

[0040] 5. This invention achieves uniform weight distribution, stable center of gravity, and good fit to the human body's curves by dividing the counterweight chamber into independent areas such as the back and shoulder straps, and rationally arranging multiple water-absorbing weight-increasing structures in each area, thereby improving wearing comfort and sports adaptability.

[0041] 6. This invention achieves the effect of improving soft and conforming performance while ensuring the target weight by using the technical feature of forming a gel mass with a certain structural strength and deformability after the absorbent material absorbs water. Compared with rigid metal blocks or sandbag structures, it can significantly improve the wearing experience and reduce local pressure. Attached Figure Description

[0042] Figure 1 This is a front view of the weight-bearing wearable device provided in Embodiment 1 of the present invention;

[0043] Figure 2 This is a schematic diagram of the back of the weight-bearing wearable device provided in Embodiment 1 of the present invention;

[0044] Figure 3 This is an internal schematic diagram of the weight-bearing wearable device provided in Embodiment 1 of the present invention (i.e., Figure 1 (Schematic diagram of the cross-section AA in the middle).

[0045] Figure 4 This is a schematic diagram of the water-absorbing and weight-increasing structure in Embodiment 1 of the present invention;

[0046] Figure 5 This is a schematic diagram of the water-absorbing and weight-increasing structure inside the vest body in Embodiment 1 of the present invention (i.e., Figure 3 (Schematic diagram of the cross-section of section BB).

[0047] Figure 6 This is a schematic diagram of the water-permeable and spill-proof structure inside the vest body in Embodiment 1 of the present invention (i.e., Figure 3 (Schematic diagram of cross-section CC)

[0048] Figure 7 This is a schematic diagram showing the changes before and after water injection in Embodiment 1 of the present invention.

[0049] Reference numerals: 100, Vest body; 110, Surface structure; 120, Waterproof layer; 130, Edge binding structure; 140, Back counterweight chamber; 150, Shoulder counterweight chamber; 200, Water-absorbing weight-increasing structure; 210, Water-soluble bag; 220, Water-absorbing particles; 300, Water-permeable and spill-proof structure; 400, Sealing structure; 500, Connecting strap. Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings.

[0051] Example 1

[0052] A weight-bearing wearable device based on highly absorbent material, specifically a weight-bearing vest, includes a vest body, a water-absorbing and weight-increasing structure, a water-permeable and spill-proof structure, and a sealing structure. The vest body has one or more water inlets on its surface layer and an internal weight-reducing chamber. The water inlets are equipped with a manually openable sealing structure.

[0053] The water-absorbing and weight-increasing structure is installed in the counterweight chamber inside the vest body, enabling it to increase weight by absorbing water. The water-permeable and overflow-preventing structure is located at the water inlet of the vest body, used to inject water into the internal space of the vest body and prevent the water-absorbing material in the water-absorbing and weight-increasing structure from being discharged from the water inlet of the vest body. Water entering the internal space of the vest body is constrained by the water-absorbing material and will not overflow from the water inlet through the water-permeable and overflow-preventing structure.

[0054] The vest body comprises a two-layer structure and two waterproof layers located between the two layers. The edges of the two-layer structure and the two waterproof layers are sewn together and secured, and an edging structure is provided. The two waterproof layers enclose a counterweight chamber.

[0055] The back area and shoulder strap area of ​​the vest body have independent counterweight chambers, so that the inside of the vest body forms one independent back counterweight chamber and two independent shoulder strap counterweight chambers.

[0056] The water-absorbing and weight-enhancing structure includes a water-soluble bag and a water-absorbing material. The water-absorbing material has a granular structure; the water-soluble bag has no opening and is filled with the water-absorbing material. The water-absorbing material is a super absorbent polymer (SAP), such as polyacrylates, polyacrylates, starch acrylate polymers, starch-acrylonitrile graft copolymers, acrylamide-acrylonitrile-acrylic acid terpolymers, highly substituted cross-linked carboxymethyl cellulose, cross-linked carboxymethyl cellulose grafted acrylamide, or cross-linked hydroxyethyl cellulose grafted acrylamide polymer. The water-absorbing material 420 has a distilled water absorption capacity of, for example, 5 times, 10 times, 50 times, 100 times, or 200 times.

[0057] Initially, the water-soluble bag contains unfilled absorbent material. When the weighted vest needs to be used, water is injected into the vest to increase its weight. After absorbing water, the absorbent material becomes a semi-solid hydrogel. Compared to traditional weighted vests that use pre-placed metal blocks or sandbags to increase weight, this embodiment uses a method of loading absorbent material in a dry state and then injecting water to increase weight when the user begins use. This keeps the product lightweight throughout the manufacturing, warehousing, and logistics stages. Because the absorbent material has a low mass before absorbing water, the entire weighted vest does not need to bear the target training weight during transportation, significantly reducing the transportation weight of a single product and the weight for logistics charges, thus reducing transportation costs. Especially in e-commerce sales and cross-border, cross-regional bulk transportation scenarios, this water-injection weight-increasing method can effectively reduce logistics costs and the handling intensity during transportation, improving transportation safety and economy.

[0058] Furthermore, the water-absorbing weight-adding structure utilizes the expansion of the water-absorbing material to form a gel-like or semi-solid structure, locking the water within the polymer network structure. Compared to conventional methods that directly inject free water into a sealed cavity, in this embodiment, the absorbed water does not form a freely sloshing liquid state within the weight-adding chamber, thus avoiding significant water sloshing during running, jumping, or high-intensity training. This structure effectively improves the stability of the weight-bearing device during exercise, preventing center-of-gravity shifts caused by the inertial impact of internal water, thereby enhancing wearing comfort and safety.

[0059] Furthermore, after absorbing water, the absorbent material forms a hydrogel mass with a certain structural strength, which makes the interior of the counterweight chamber present a uniformly distributed semi-solid weight-increasing state. While maintaining the uniformity of weight at different locations in space, it also has good deformation ability, allowing the weighted vest to better fit the human body surface. Compared with vests that add weight with metal blocks or sandbags, it can improve the comfort of wearing the weighted vest.

[0060] The water-soluble bag is a water-soluble packaging bag capable of holding dry absorbent material and gradually dissolving and releasing the absorbent material upon contact with water. The water-soluble bag delays the release of the absorbent material after water is added, thus preventing the absorbent material near the water inlet from immediately expanding upon water intake, which would obstruct the flow of water deeper into the counterweight chamber. Therefore, in this embodiment, the design of the water-soluble bag ensures that the water injected into the vest body can fully diffuse to different locations within the counterweight chamber, thereby ensuring that the absorbent material in different locations within the vest body can fully absorb water, allowing the weighted vest to reach the target weight. Therefore, the water-soluble bag reduces the difficulty of water filling for the user.

[0061] The main material of the water-soluble bag can be polyvinyl alcohol or other water-soluble materials. In some embodiments, the dissolution time of the water-soluble bag in water can be controlled, for example, to 1 minute or 2 minutes, by controlling the material type or the thickness of the water-soluble bag.

[0062] In some embodiments, the weight-bearing wearable device further includes a water injection assist structure. The water injection assist structure is a funnel or a syringe.

[0063] Each weight chamber has a corresponding water inlet. The water inlet is located at the top of the corresponding weight chamber. In some embodiments, the water inlet for the back weight chamber is located on one side of the vest at the back shoulder position. The water inlet for the shoulder strap weight chamber is located at the front shoulder position of the vest.

[0064] Each water inlet is equipped with a corresponding water-permeable anti-overflow structure. The water-permeable anti-overflow structure uses a water-permeable bag. Each water-permeable bag has a unique opening. The edge of the opening of the water-permeable bag is sewn to the edge of the corresponding water inlet. The water-permeable bag and the water inlet together form a water-filling structure. The water-permeable bag is laid flat inside the corresponding counterweight chamber.

[0065] The concave shape of the permeable bag ensures that the funnel or syringe is not obstructed when inserted into the water inlet. Simultaneously, the permeable bag separates the water inlet from the counterweight chamber, allowing injected water to pass through the bag into the counterweight chamber, while the absorbent material is blocked by the bag and cannot reach the water inlet.

[0066] In some embodiments, the material of the permeable bag is polyester fiber, spandex, or other fabrics with water-permeable properties.

[0067] In some embodiments, the sealing structure is a waterproof zipper.

[0068] In some embodiments, the back weight chamber is provided with five water-absorbing weight-enhancing structures. Each shoulder strap weight chamber is provided with two water-absorbing weight-enhancing structures. In the back weight chamber, one water-absorbing weight-enhancing structure is located at the center of the back weight chamber, and the other four water-absorbing weight-enhancing structures are distributed at the four corners of the back weight chamber. In the shoulder strap weight chamber, the two water-absorbing weight-enhancing structures are arranged at intervals along the length of the shoulder strap.

[0069] In some embodiments, the water-absorbing weight-increasing structure is placed only in the counterweight chamber and maintains its position by utilizing the elastic compressive force provided by the two side layer structures.

[0070] In some other embodiments, the outer surface of the water-soluble bag of the water-absorbing and weight-increasing structure is bonded to the inner surface of the waterproof layer using an adhesive. The adhesive used for bonding is a water-soluble adhesive that can automatically dissolve after being filled with water.

[0071] In some embodiments, each of the two shoulder straps of the vest body is provided with a connecting strap. One end of the connecting strap is sewn and fixed to the corresponding shoulder strap. The other end of the connecting strap is provided with a plug-in structure. The plug-in structures of the connecting straps connected to the two shoulder straps match each other and can be plugged together to connect the two shoulder straps from the front of the body, improving the stability of the weighted vest when worn on the body and facilitating the user to perform large-amplitude exercise movements.

[0072] In some other embodiments, the weight-bearing device may also be a sleeved workout garment. The sleeves of the workout garment also have a water-absorbing and weight-increasing structure.

[0073] In some embodiments, the waterproof layer is made of thermoplastic polyurethane elastomer (TPU), which has good waterproof performance, delays moisture loss from the back of the weighted vest, and has good deformation ability, so as to adapt to the user's large movements during exercise.

[0074] Example 2

[0075] A method for preparing a weighted vest, used to prepare the weighted wearable device provided in Example 1.

[0076] The preparation method includes the following steps:

[0077] Step S1: Cutting and shaping the main body of the vest

[0078] A durable and breathable fabric is selected as the outer layer of the vest, while a fabric with a certain strength and flexibility is selected as the inner lining. The outer fabric and the inner lining constitute the two-layer structure of the vest body. One outer fabric, two waterproof layers, and one inner lining are layered together, and the back panel and shoulder straps are cut according to ergonomic principles to form the four-layer garment structure required for sewing the vest body.

[0079] Step S2: Installation of permeable overflow prevention structure

[0080] Water inlets are cut into the outer fabric of the four-layer garment structure and its adjacent waterproof layer, and reinforcing rings are added to the edges of the inlets to improve the structural strength of the openings. Then, the permeable bags are sewn to the inside of the inlets.

[0081] Step S3: Preparation of water-absorbing and weight-increasing structures

[0082] Superabsorbent resin particles are selected as the absorbent material. The superabsorbent resin particles are packed into a water-soluble bag according to a preset weight to form a water-absorbing and weight-increasing structure.

[0083] Step S4: Sew the vest into shape

[0084] A predetermined number of water-absorbing weight-increasing structures are evenly placed between the two waterproof layers of the four-layer structure that has been cut. The edges of the four-layer structure are then bound to form a one-piece vest body, creating a weight-reinforced chamber with sealed edges between the two waterproof layers.

[0085] Step S5: Sealing Structure Installation

[0086] A re-openable sealing structure is installed at the water inlet. The sealing structure can be a zipper type or a flip-top type. After the sealing structure is installed, the water inlet is tested for leak resistance.

[0087] Step S6: Overall Verification and Organization

[0088] The finished vests undergo appearance finishing, thread trimming, and overall strength testing. The initial weight is recorded while the vests are dry. A simulated water injection test is conducted, injecting a predetermined volume of water into the counterweight chamber. The water absorption and expansion of the weight-increasing structure, as well as the overall weight change, are observed. Once the weight-increasing performance and structural stability meet the design requirements, production is complete.

[0089] Example 3

[0090] A weight-bearing wearable device based on highly absorbent material, specifically a weight-bearing wristband, includes a wristband body, a water-absorbing weight-increasing structure, a water-permeable and overflow-proof structure, and a sealing structure. The wristband body has a counterweight chamber inside. The inner surface of the counterweight chamber is covered with a waterproof layer. The water-absorbing weight-increasing structure is disposed inside the counterweight chamber. A water inlet communicating with the counterweight chamber is provided on the outer surface of the wristband body. The water inlet is equipped with a water-permeable and overflow-proof structure and a sealing structure.

[0091] The water-absorbing and weight-enhancing structure includes a water-soluble bag and a water-absorbing material. The water-soluble bag has no opening and is filled with the water-absorbing material. The water-absorbing material is a super absorbent polymer (SAP), such as polyacrylates, polyacrylates, starch-acrylate polymers, starch-acrylonitrile graft copolymers, acrylamide-acrylonitrile-acrylic acid terpolymers, highly substituted cross-linked carboxymethyl cellulose, cross-linked carboxymethyl cellulose grafted acrylamide, or cross-linked hydroxyethyl cellulose grafted acrylamide polymer. The water-absorbing material 420 has a distilled water absorption capacity of, for example, 5 times, 10 times, 50 times, 100 times, or 200 times.

[0092] The water-soluble bag is a water-soluble packaging bag capable of holding dry absorbent material and gradually dissolving and releasing the absorbent material upon contact with water. The water-soluble bag delays the release of the absorbent material after water is added, thus preventing the absorbent material near the water inlet from immediately expanding upon water intake, which would obstruct the flow of water deeper into the counterweight chamber. Therefore, in this embodiment, the design of the water-soluble bag ensures that the water injected into the vest body can fully diffuse to different locations within the counterweight chamber, thereby ensuring that the absorbent material in different locations within the vest body can fully absorb water, allowing the weighted vest to reach the target weight. Therefore, the water-soluble bag reduces the difficulty of water filling for the user.

[0093] The permeable overflow prevention structure uses a permeable bag. Each permeable bag has a single opening. The edge of the opening of the permeable bag is sewn to the corresponding edge of the water inlet. The permeable bag and the water inlet together form a water injection structure. The permeable bag is laid flat inside the corresponding counterweight chamber.

[0094] The concave shape of the permeable bag ensures that the funnel or syringe is not obstructed when inserted into the water inlet. Simultaneously, the permeable bag separates the water inlet from the counterweight chamber, allowing injected water to pass through the bag into the counterweight chamber, while the absorbent material is blocked by the bag and cannot reach the water inlet.

[0095] Compared to traditional metal block or directly water-filled weighted wristbands, this embodiment only contains dry absorbent material during manufacturing and transportation, making the overall weight of the wristband significantly lower than the target training weight in use, thus effectively reducing logistics and transportation costs. Users can obtain the required weight simply by filling the wristband with water before actual training, eliminating the need to bear the transportation costs of heavy products. Simultaneously, because the absorbent material forms a stable gel structure after absorbing water, the moisture is confined within the polymer network, preventing the formation of free-flowing liquid water. Therefore, when wearing the wristband for arm swings or high-speed movements, the problem of water sloshing around inside traditional water-filled wristbands does not occur, thus improving wearing stability and exercise comfort. Furthermore, the softness of the absorbent material after absorbing water also enhances the comfort of wearing the weighted wristband against the skin.

[0096] In some other embodiments, the weight-bearing wearable device may also be a weight-bearing belt, weight-bearing leg wraps, or a weight-bearing structure worn on other parts of the body, simply by inserting the water-absorbing weight-increasing structure into the main body of the other weight-bearing structure accordingly.

Claims

1. A weight-bearing wearable device based on highly absorbent material, comprising a wearable body and a water-absorbing weight-increasing structure (200); wherein the wearable body has one or more counterweight chambers; characterized in that: One or more water-absorbing weight-increasing structures (200) are provided in some or all of the counterweight chambers; the wearable body is provided with a water inlet connected to the counterweight chamber; each counterweight chamber with a water-absorbing weight-increasing structure (200) has a corresponding water inlet; the water-absorbing weight-increasing structure (200) includes water-absorbing material.

2. The weight-bearing wearable device according to claim 1, characterized in that: The water-absorbing and weight-increasing structure (200) also includes a water-soluble bag (210) made of water-soluble material; the water-absorbing material is disposed inside the water-soluble bag (210).

3. The weight-bearing wearable device according to claim 2, characterized in that: The outer side of the water-soluble bag (210) is bonded and fixed to the inner surface of the counterweight chamber; the adhesive used to bond the outer side of the water-soluble bag (210) to the inner surface of the counterweight chamber is a water-soluble adhesive.

4. The weight-bearing wearable device according to claim 1, characterized in that: The absorbent material is a highly absorbent polymer that forms a hydrogel after absorbing water.

5. The weight-bearing wearable device according to claim 1, characterized in that: The wearable body includes a two-layer structure (110) and two waterproof layers (120) located between the two-layer structure (110); the edges of the two-layer structure (110) and the two waterproof layers (120) are provided with an edge-sealing structure (130) so that the two waterproof layers (120) enclose a counterweight chamber.

6. The weight-bearing wearable device according to claim 1, characterized in that: The water-permeable spill prevention structure (300) adopts a water-permeable bag; the water-permeable bag has a single opening; the edge of the opening of the water-permeable bag is fixed to the wearable body and surrounds the water inlet.

7. The weight-bearing wearable device according to claim 1, characterized in that: The permeable overflow prevention structure (300) adopts a fluid check structure.

8. The weight-bearing wearable device according to claim 1, characterized in that: The weight-bearing device can be any one of a vest, sleeved fitness clothing, wristband, waist belt, or leg wraps.

9. The weight-bearing wearable device according to claim 1, characterized in that: The wearable main body is a vest body (100) including a back structure and a shoulder strap structure; the counterweight chamber includes a back counterweight chamber (140) in the back structure and a shoulder strap counterweight chamber in the shoulder strap structure; the back counterweight chamber (140) and / or the shoulder strap counterweight chamber are provided with a water-absorbing weight-increasing structure (200).

10. A method for preparing a weight-bearing wearable device, characterized in that: A method for preparing the weight-bearing wearable device as described in claim 1; the preparation method includes: Two layers of structure (110) and two waterproof layers (120) are stacked and cut according to the shape of the wearable body to obtain a four-layer structure, with the two waterproof layers (120) placed between the two layers of structure (110). Cut out the water inlet on one of the four-layer structures (110) and its adjacent waterproof layer (120); The absorbent material is placed into the water-soluble bag (210), and the opening of the water-soluble bag (210) is sealed to form a water-absorbing and weight-increasing structure (200). One or more water-absorbing weight-increasing structures (200) are placed between the two waterproof layers (120); The edges of the four-layer structure are wrapped to form a counterweight chamber with closed edges between the two waterproof layers (120).

Images