A half body safety belt
By designing a detachable buckle to connect the waist and legs, adjusting the tightness of the waist and leg restraints, and adding a load-bearing ring and equipment hanging ring, the problem of cumbersome putting on and taking off and poor adaptability of existing half-body safety belts in emergency situations has been solved, improving operational convenience and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHONGKUN SAFETY TECH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
Existing half-body safety harnesses are cumbersome to put on and take off in emergencies, have poor adaptability to different body types, and lack flexibility in complex environments, affecting emergency rescue and operational efficiency.
Design a half-body safety harness with a detachable buckle to connect the waist and legs. The waist and leg restraints are adjustable in tightness. A load-bearing ring is located on the front of the waist. It is equipped with multiple equipment loops and nylon webbing buckles for easy connection and carrying of tools.
It enables quick donning and doffing in emergency situations, adapts to different body types, improves operational convenience and safety, and enhances work efficiency and safety in complex environments.
Smart Images

Figure CN224540829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat belt technology, and more specifically, to a half-body seat belt. Background Technology
[0002] In scenarios such as high-altitude operations, fire rescue, and outdoor exploration, half-body safety harnesses are key equipment for ensuring personnel safety. Their structural rationality and ease of operation directly affect work efficiency and safety. Currently, most half-body safety harnesses on the market adopt an integrated waist and leg design, where the waist restraint sleeve and leg restraint sleeve are formed into a single structure through fixing connectors.
[0003] While this design ensures overall stability when worn, it has significant limitations in actual donning and doffing: users must first put the leg restraints on from the feet and adjust them to the upper thighs before fastening the waist buckle. The entire process requires repeated adjustments to the tightness, which can often delay precious rescue time in emergency rescue scenarios.
[0004] Furthermore, the one-piece structure is poorly adaptable to users of different body types. If it is too loose, the equipment may wobble and affect operation; if it is too tight, it will restrict limb movement and increase physical exertion. At the same time, the design lacks flexibility in donning and doffing in complex environments. For example, in confined spaces or when the user is injured and unable to move freely, the donning process is more cumbersome, further reducing the overall efficiency of rescue or operations and failing to meet the actual needs for rapid response in emergency scenarios. Utility Model Content
[0005] This application mainly addresses the problems of existing half-body seat belts being cumbersome to put on and take off, having poor adaptability to different body types, and having a slow response speed in emergency situations. To overcome the above-mentioned defects of the prior art, this application provides a half-body seat belt.
[0006] This application provides a half-body safety belt, comprising: The waist restraint sleeve has a ring-shaped structure that fits the human waist, and the tightness of the waist restraint sleeve can be adjusted. The leg restraint sleeve is a ring-shaped structure that matches the human thigh. The tightness of the leg restraint sleeve is adjustable. There are two leg restraint sleeves, both of which are located below the waist restraint sleeve. The connecting component includes a connecting strap and a detachable buckle strap. The upper end of the connecting strap is fixed to the front side of the waist restraint sleeve, and the lower end of the connecting strap is fixed to the front side of the leg restraint sleeve. The upper end of the buckle strap is fixed to the rear side of the waist restraint sleeve, and the lower end of the buckle strap is fixed to the rear side of the leg restraint sleeve. The load-bearing ring is fixedly connected to the middle of the front side of the waist restraint sleeve and is used to connect the lifting equipment.
[0007] Compared with existing technologies, the half-body safety belt proposed in this application has the following advantages: the detachable buckle allows for quick connection and disconnection between the waist and the back of the legs, simplifying the donning and doffing process, and is especially suitable for emergency scenarios; both the waist and leg restraints are adjustable to accommodate users of different body types, avoiding excessive looseness causing swaying or excessive tightness restricting movement; the load-bearing ring is located in the middle of the front side of the waist, facilitating stable connection to lifting equipment, ensuring load-bearing balance, and improving operational safety.
[0008] In one possible implementation, the lumbar support sleeve includes a lumbar support belt and a lumbar guard plate. The lumbar support belt and the lumbar guard plate are fixedly connected to form a ring structure. The lumbar support belt is located on the front side of the lumbar guard plate, and the lumbar support belt is provided with a lumbar tension adjustment buckle. Compared with the prior art, the lumbar guard plate can improve the stability of the lumbar structure and reduce discomfort caused by excessive force on the lumbar region during operation. The lumbar tension adjustment buckle is located on the front support belt, which allows the user to quickly adjust the lumbar tension, further improving the fit and wearing comfort, and solving the problem of inconvenient lumbar adjustment in existing systems.
[0009] In one possible implementation, the outer side of the lumbar support plate is provided with multiple equipment hanging loops, which are arranged circumferentially at intervals. Compared with the prior art, this provides dedicated hanging points for suspending tools, accessories, etc., facilitating quick access to equipment in high-altitude operations, rescue scenarios, etc., improving work efficiency, and overcoming the limitation of existing safety belts lacking equipment placement locations.
[0010] In one possible implementation, the lumbar support plate is equipped with a back connection loop. Compared with the prior art, the back connection loop can serve as an additional safety connection point for connecting backup safety ropes, fall arresters, and other devices, thereby enhancing safety in emergencies and avoiding the risk of failure of a single connection point.
[0011] In one possible implementation, the leg restraint sleeve includes a leg restraint strap and a leg guard plate. The leg restraint strap and the leg guard plate are fixedly connected to form a ring structure. The leg restraint strap is located on the front side of the leg guard plate and has a leg tension adjustment buckle. Compared with the prior art, the leg guard plate can reduce the force on the legs and avoid leg injuries or discomfort caused by prolonged work. The leg tension adjustment buckle is located on the restraint strap on the front side, which facilitates quick adjustment of the leg tension to adapt to different thigh circumferences and avoids excessive tightness that restricts leg movement or excessive looseness that causes swaying.
[0012] In one possible implementation, the buckle includes a main strap and two secondary straps. One end of the main strap connects to the waist guard plate, and the other end is connected to a female buckle. One end of each of the two secondary straps connects to two leg guard plates, and the other end is connected to a secondary buckle. The secondary buckles are detachably connected to the main strap. Compared to existing technologies, the detachable design of the buckle allows for quick fastening and disassembly of the waist and back of the legs, eliminating the need for bending over or large movements. This is particularly suitable for quick operation in confined spaces or when the user is injured, solving the problem of cumbersome donning and doffing in existing one-piece structures.
[0013] In one possible implementation, the sub-belt is adjustablely connected to the sub-connector. Compared to existing technologies, the adjustable sub-belt allows for fine-tuning of the connection tension between the waist and the back of the legs according to the user's range of motion, reducing the feeling of restriction, avoiding rigid connections that limit limb movement, and improving operational flexibility.
[0014] In one possible implementation, the connecting strap is an elastic band. Compared with the prior art, the elastic connecting strap can stretch and contract with body movements, reducing rigid pulling on the waist and legs, avoiding restrictions on movement caused by the rigidity of the connecting strap, and improving wearing comfort and ease of operation.
[0015] In one possible implementation, both the waist restraint and leg restraint are equipped with nylon webbing buckles. Compared to existing technologies, nylon webbing buckles provide attachment points for small equipment bags, facilitating the carrying of loose items, further improving operational convenience, and meeting the equipment carrying needs in complex scenarios. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this application. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of this application. Figure 2 ; Figure 3 A schematic diagram of the waist restraint sleeve; Figure 4 A schematic diagram of the leg restraint sleeve; Figure 5 This is a schematic diagram of the structure of a snap fastener; Explanation of reference numerals in the attached figures: 1. Waist restraint sleeve; 11. Waist restraint belt; 12. Waist guard plate; 13. Waist tension adjustment buckle; 14. Equipment hanging ring; 15. Back connecting ring; 2. Leg restraint sleeve; 21. Leg restraint belt; 22. Leg guard plate; 23. Leg tension adjustment buckle; 3. Connecting parts; 31. Connecting strap; 32. Snap fastener; 321. Female strap; 322. Female strap; 323. Female fastener; 324. Female fastener; 4. Load-bearing ring; 5. Nylon webbing buckle. Detailed Implementation
[0017] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0018] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0019] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0020] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0021] See Figures 1 to 5 This application discloses a half-body safety belt, including: a waist restraint sleeve 1, a leg restraint sleeve 2, a connecting component 3, and a load-bearing ring 4.
[0022] The waist restraint sleeve 1 is made of high-strength webbing and is in the shape of a ring to match the curve of the human waist. The circumference of its ring structure can be flexibly adjusted by the adjustment structure set on the front to meet the needs of users with different waist sizes.
[0023] The leg restraint sleeve 2 also uses the same high-strength webbing as the waist restraint sleeve 1. There are two of them, corresponding to the left and right thighs of the human body respectively. They are in a ring structure and the circumference is adjustable. Both leg restraint sleeves 2 are located below the waist restraint sleeve 1 and maintain a certain distance from the waist restraint sleeve 1.
[0024] The connecting component 3 includes a connecting strap 31 and a buckle strap 32. The connecting strap 31 consists of two straps made of wear-resistant material. Its upper end is fixedly connected to the front of the waist restraint sleeve 1, and its lower end is fixedly connected to the front of the two leg restraint sleeves 2. The buckle strap 32 is a detachable structure. Its upper end is fixed to the back of the waist restraint sleeve 1, and its lower end is divided into two branches, which are fixed to the back of the two leg restraint sleeves 2 respectively.
[0025] The load-bearing ring 4 is made of alloy material and has extremely high load-bearing capacity. It is fixedly connected to the middle of the front side of the waist restraint sleeve 1. The surface is treated with anti-rust and can be firmly connected to the hooks of various hoisting equipment to realize the hoisting support for the human body.
[0026] In this embodiment, the waist restraint sleeve 1 includes a waist restraint belt 11 and a waist guard plate 12.
[0027] Specifically, the waist restraint belt 11 is made of wide nylon webbing, which has good strength; the waist guard plate 12 is made of lightweight plastic material, filled with cushioning sponge, and has an arc-shaped structure, which can effectively support and protect the waist. The waist restraint belt 11 and the waist guard plate 12 are fixedly connected by sewing, forming a ring structure together, with the waist restraint belt 11 located on the front side of the waist guard plate 12. The waist restraint belt 11 is equipped with a waist tightness adjustment buckle 13, which is a metal D-ring buckle. By changing the length of the waist restraint belt 11 passing through the adjustment buckle, the tightness of the waist restraint sleeve 1 can be quickly adjusted to adapt to the waist size of different users.
[0028] In this embodiment, the outer side of the waist guard plate 12 is provided with a plurality of equipment hanging rings 14.
[0029] Specifically, these equipment hanging rings 14 are made of high-strength alloy material and are fixedly connected to the waist guard plate 12. Multiple equipment hanging rings 14 are arranged at intervals along the circumference of the waist guard plate 12, with adjacent rings staggered vertically. These hanging rings can be used to hang equipment needed for operations or rescues, such as tool bags and locks, making it convenient for users to access them at any time and improving operational convenience.
[0030] In this embodiment, the waist guard plate 12 is provided with a back connecting ring 15.
[0031] Specifically, the back connecting ring 15 is securely and reliably connected to the lumbar support plate 12. The back connecting ring 15 can be used to connect auxiliary safety equipment such as safety ropes and spare harnesses, further enhancing the safety of the half-body harness and providing additional safety protection for the user in special circumstances.
[0032] In this embodiment, the leg restraint sleeve 2 includes a leg restraint strap 21 and a leg guard plate 22.
[0033] Specifically, the leg restraint strap 21 is made of the same wide nylon webbing as the waist restraint strap 11, while the leg guard plate 22 has an arc-shaped structure made of lightweight plastic, conforming to the curve of the thigh and improving wearing comfort. The leg restraint strap 21 and the leg guard plate 22 are fixedly connected by sewing to form a ring structure, with the leg restraint strap 21 located on the front side of the leg guard plate 22. The leg restraint strap 21 is equipped with a leg elastic adjustment buckle 23, which is a metal D-ring buckle. By adjusting the length of the leg restraint strap 21, the leg restraint sleeve 2 can be adapted to thighs of different thicknesses, ensuring a stable fit.
[0034] In this embodiment, the buckle 32 includes a female strap 321 and two female straps 322.
[0035] Specifically, the main strap 321 is made of wear-resistant nylon webbing. One end is sewn to the center of the rear side of the lumbar support plate 12, and the other end is fixedly connected to a female buckle 323. The two sub-straps 322 are also made of nylon webbing. One end is fixedly connected to the center of the rear side of each of the two leg guards 22, and the other end is connected to a sub-buckle 324, which matches the female buckle 323. The sub-buckle 324 can be inserted into the female buckle 323 to form a V-shaped buckle structure, enabling a detachable connection between the two, which is simple and quick to operate, allowing users to easily put on and take off the seatbelt.
[0036] In this embodiment, the sub-belt 322 is connected to the sub-connector 324 in an adjustable manner.
[0037] Specifically, the sub-buckle 324 has two spaced adjustment holes. One end of the sub-belt 322 passes through the two adjustment holes in an S-shape and is then fixed. By pulling the unfixed end of the sub-belt 322, the fastening length of the sub-belt 322 can be changed, thereby adjusting the overall length of the sub-belt 322. This, in turn, adjusts the tightness of the buckle 32, allowing the seat belt to better fit the user's body and improve wearing comfort and stability.
[0038] In this embodiment, the connecting band 31 is an elastic band.
[0039] Specifically, the elastic band is woven from a mixture of natural rubber and nylon fibers, possessing excellent elasticity and toughness. When the user engages in limb movements, the connecting band 31 can stretch and contract accordingly based on the range of motion, reducing restrictions on the user's movements. Simultaneously, it maintains sufficient strength during hoisting or under stress, ensuring a secure and reliable connection between the waist restraint 1 and the leg restraint 2.
[0040] In this embodiment, both the waist restraint sleeve 1 and the leg restraint sleeve 2 are provided with nylon webbing buckles 5.
[0041] Specifically, the nylon webbing buckle 5 is sewn onto the waist restraint belt 11 and the leg restraint belt 21 respectively. The nylon webbing buckle 5 is of moderate size and can be used to hook onto small equipment bags, such as portable bags containing first aid supplies, small tools and other items, making it convenient for users to carry necessary small items without affecting the normal use and wearing comfort of the seat belt.
[0042] The beneficial effects of this application include: 1. The detachable buckle 32 enables quick connection and disconnection between the waist and the back of the legs, significantly simplifying the dressing and doffing process. It is especially suitable for emergency rescue, confined spaces or user injuries, greatly improving response speed and ease of operation.
[0043] 2. Both the waist restraint sleeve 1 and the leg restraint sleeve 2 are equipped with an adjustable structure, which can be flexibly adjusted according to the body shape of different users to avoid the equipment shaking due to being too loose or restricting limb movement due to being too tight, thereby improving the fit and wearing comfort.
[0044] 3. The load-bearing ring 4 is located in the middle of the front side of the waist, which facilitates stable connection to the hoisting equipment, ensures load balance, and improves operational safety; the back connecting ring 15 is used to connect auxiliary safety equipment to further enhance the safety of the half-body safety belt.
[0045] IV. Equipped with equipment hanging rings 14 and nylon webbing buckles 5, providing multiple hanging points for easy carrying of tool bags, safety ropes and other equipment, enhancing functionality and work efficiency.
[0046] 5. The connecting belt 31 is made of elastic material, and the sub-belt 322 can be finely adjusted to further reduce movement restrictions and improve flexibility and comfort, making it suitable for long-term operation or dynamic environments.
[0047] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.
[0048] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "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 application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A half-body safety belt, characterized in that, include: The waist restraint sleeve has a ring-shaped structure that fits the human waist, and the tightness of the waist restraint sleeve can be adjusted. The leg restraint sleeve is a ring-shaped structure that matches the human thigh. The tightness of the leg restraint sleeve is adjustable. There are two leg restraint sleeves, both of which are located below the waist restraint sleeve. The connecting component includes a connecting strap and a detachable buckle strap. The upper end of the connecting strap is fixed to the front side of the waist restraint sleeve, and the lower end of the connecting strap is fixed to the front side of the leg restraint sleeve. The upper end of the buckle strap is fixed to the rear side of the waist restraint sleeve, and the lower end of the buckle strap is fixed to the rear side of the leg restraint sleeve. The load-bearing ring is fixedly connected to the middle of the front side of the waist restraint sleeve and is used to connect the lifting equipment.
2. The half-body safety belt according to claim 1, characterized in that, The waist restraint sleeve includes a waist restraint belt and a waist guard plate. The waist restraint belt and the waist guard plate are fixedly connected to form a ring structure. The waist restraint belt is located on the front side of the waist guard plate and is provided with a waist tightness adjustment buckle.
3. The half-body safety belt according to claim 2, characterized in that, The outer side of the waist guard plate is provided with multiple equipment hanging rings, which are arranged circumferentially at intervals.
4. The half-body safety belt according to claim 2, characterized in that, The lumbar support plate is equipped with a back connection ring.
5. The half-body safety belt according to claim 2, characterized in that, The leg restraint sleeve includes a leg restraint strap and a leg guard plate. The leg restraint strap and the leg guard plate are fixedly connected to form a ring structure. The leg restraint strap is located on the front side of the leg guard plate and is provided with a leg tension adjustment buckle.
6. The half-body safety belt according to claim 5, characterized in that, The buckle includes a female strap and two female straps. One end of the female strap is connected to the waist guard plate and the other end is connected to a female buckle. One end of each of the two female straps is connected to the two leg guard plates and the other end is connected to a female buckle. The female buckle and the female buckle are detachably connected.
7. The half-body safety belt according to claim 6, characterized in that, The sub-belt is adjustablely connected to the sub-connector.
8. The half-body safety belt according to claim 1, characterized in that, The connecting band is an elastic band.
9. The half-body safety belt according to claim 1, characterized in that, Both the waist restraint and leg restraint are equipped with nylon webbing buckles.