A magnetic tool strap
By designing a detachable magnetic tool strap, the problems of weakening magnetic attraction and low retrieval efficiency in traditional tool carrying solutions are solved, enabling stable carrying and efficient use of tools, and adapting to various working environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional tool carrying methods suffer from weakened magnetic attraction in humid environments, making them impossible to replace individually. This results in a high risk of tool loss and low retrieval efficiency, impacting maintenance safety and efficiency.
Design a detachable magnetic tool strap, which adopts an interlocking magnetic retainer and multi-level magnetic force units to achieve quick assembly and disassembly and stable adsorption. The strap body is equipped with a magnetic retainer and detachable magnetic force units, supporting multiple magnetic force levels and non-magnetic functional modules, enhancing stability and convenience.
It enables quick replacement and stable adsorption of magnetic units, reduces the risk of tool loss, improves the efficiency and safety of tool carrying, and adapts to various operational needs.
Smart Images

Figure CN224509490U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maintenance auxiliary tools, and in particular to a magnetic tool strap. Background Technology
[0002] Hydropower station maintenance work faces unique environmental challenges. Maintenance personnel often need to work in areas such as generator wind tunnels, turbine room roofs, and inside control panels, where the working space is confined. In addition, operation and maintenance personnel often need to carry a large number of small tools, such as wrenches, screwdrivers, and Phillips screws.
[0003] Traditional tool carrying solutions have several drawbacks: Sewn-on magnetic belts, when exposed to humid environments for extended periods, suffer from magnet corrosion, leading to a significant decrease in magnetic force, and the magnets cannot be replaced individually; ordinary tool bags are inefficient for retrieval and placement, forcing workers to spend more time in high-risk areas; fall arrest ropes are prone to entanglement around rotating machinery. Loss or neglect of metal tools in high-risk areas such as generator wind tunnels during maintenance could damage hydroelectric generator units. Utility Model Content
[0004] The purpose of this invention is to improve upon existing structural deficiencies and propose a detachable magnetic tool strap. Through an interlocking structure, the magnetic unit can be quickly installed and removed, providing highly reliable adsorption while maintaining wearing comfort.
[0005] This utility model is achieved through the following solution: A magnetic tool strap includes a strap body with at least one magnet retainer. The magnet retainer has a bayonet and an inner groove behind and communicating with the bayonet. The magnetic unit has an I-shaped cross-section and has a front tongue, a narrowed neck, and a rear adsorption surface. The magnetic unit can be detachably placed into the magnet retainer.
[0006] Furthermore, the narrow neck passes through the slot from top to bottom, the front tongue is accommodated in the inner groove, and the rear adsorption surface is flush with or protrudes from the surface of the magnet retainer; the depth of the inner groove matches the thickness of the front tongue, and the width of the slot matches the diameter of the narrow neck, so that the magnetic unit does not wobble relative to the magnet retainer after installation.
[0007] Furthermore, the rear adsorption surface is a magnet, which covers the outer surface of the magnet holder to form a tool adsorption area, and the area of the rear adsorption surface is larger than that of the front insertion tongue.
[0008] Furthermore, after the front tongue enters the inner groove, it is limited by the left and right shoulders of the inner groove in the thickness direction of the belt body, forming a mechanical interlock.
[0009] Furthermore, anti-slip textures are provided on the front tongue of the magnetic unit.
[0010] Furthermore, there are multiple magnetic units with different magnetic force levels, and the outer surface of the adsorption surface is coated with a coating to indicate the magnetic force level.
[0011] Furthermore, the inner wall of the magnet retainer is provided with an elastic pad to absorb impact and reduce shaking noise.
[0012] Furthermore, the magnetic retainer is sewn onto the belt body.
[0013] Furthermore, the magnet retainer is fixed to the belt body by at least one anchor, which is a connecting shaft that passes sequentially through a pre-drilled hole on the magnet retainer and a corresponding hole on the belt body. An upper anchor head and a lower anchor head are respectively formed at both ends of the connecting shaft.
[0014] Furthermore, the slots and inner grooves of the magnet retainer also include a non-magnetic functional module for engaging.
[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. The magnetic unit can be quickly plugged in and unplugged, making it easy to replace different magnetic magnets and damaged magnets.
[0016] 2. The magnetic retainer slot is compatible with non-magnetic functional modules, enabling one belt to serve multiple purposes.
[0017] 3. The magnetic unit can be removed for separate cleaning of iron filings, extending the life of the fixing belt. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the magnet holder of this utility model; Figure 3 This is a schematic diagram of the magnetic unit of this utility model; Figure label: 1-Band body; 2-Magnetic retainer; 21-Bayonet; 22-Inner groove; 221-Shoulder; 3-Magnetic unit; 31-Front insertion tongue; 32-Narrowed neck; 33-Rear adsorption surface; 41-Upper anchor head; 42-Lower anchor head. Detailed Implementation
[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0020] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.
[0023] Example 1 like Figure 1 As shown, the magnetic tool strap of this embodiment includes a strap body 1, which is an adjustable strap. Its length can be adjusted via an adjustment buckle to adapt to different working environments and user body shapes. It can be fixed to the waist or worn diagonally across the shoulder. Multiple magnet holders 2 are fixed to the strap body 1 at predetermined intervals. Magnetic units 3 of various magnetic strengths are detachably installed in the magnet holders 2, allowing users to mix and match units of different magnetic strengths according to actual needs. Tools are attracted to the magnets; for example, strong magnetic units can attract large wrenches, while weak magnetic units can attract medium-sized tools such as screwdrivers. Furthermore, the entire strap body 1 can be attracted to cabinets or other ferrous surfaces, and the magnetic units 3 can also be individually removed and attracted to ferrous surfaces. This structure reduces the number of times users need to travel to and from the tool storage point during operation, reducing the physical burden on the user when bending over and changing tools.
[0024] Specifically, the magnetic unit 3 has an I-shaped cross-section and includes a front tongue 31, a narrowed neck 32, and a rear adsorption surface 33, wherein the rear adsorption surface 33 is a magnet for directly adsorbing metal tools. The magnet holder 2 includes a bayonet 21 and an inner groove 22 communicating with the bayonet 21. The magnetic unit 3 passes through the narrowed neck 32 from top to bottom through the bayonet 21. The width of the bayonet 21 is adapted to the diameter of the narrowed neck 32, so that the magnetic unit 3 does not wobble relative to the magnet holder 2 after installation. The front tongue 31 is housed inside the inner groove 22, and the depth of the inner groove 22 matches the thickness of the front tongue 31, so that the magnetic unit 3 can be detachably inserted into the magnet holder 2.
[0025] The rear adsorption surface 33 is flush with or protrudes from the surface of the magnet holder 2. Here, "flush" means the rear adsorption surface 33 is flush with the side surface of the magnet holder 2; "protruding" refers to both a height-related protrusion (the rear adsorption surface 33 is higher than the outer surface of the magnet holder 2 in a direction perpendicular to the surface of the belt) and an area-related protrusion (the projected area of the rear adsorption surface 33 is larger than the area enclosed by the surface of the magnet holder 2), and its outline extends beyond the outer edge of the magnet holder 2 in at least one direction, forming an overhanging adsorption edge. This protruding structure provides a larger contact area and additional edge adsorption sites for the adsorbed tool, enabling stable adsorption of small or irregularly shaped tools.
[0026] The rear adsorption surface 33 covers the outer surface of the magnet holder 2 and forms the tool adsorption area. The area of the rear adsorption surface 33 is larger than that of the front tongue 31 to provide a larger tool adsorption contact area. After the front tongue 31 enters the inner groove 22, it is limited in the inner groove 22 by the left and right side shoulders 221 in the thickness direction of the belt, forming a mechanical interlock. Through the cooperation of the adjustable fixing belt and the magnet holder 2, the tool can be conveniently carried and adsorbed, supporting the user to operate the tool with one hand, which helps to improve work efficiency.
[0027] Example 2 Based on Embodiment 1, the front tongue 31 and narrow neck 32 of the magnetic unit 3 can also be made of magnetic material. This configuration allows the magnetic unit 3 to achieve mechanical interlocking through the cooperation of the front tongue 31, narrow neck 32 and inner groove 22 when inserted into the magnet retainer 2. In addition, the magnetic retainer 2 has a pre-installed magnetic absorbing plate that generates an additional magnetic attraction between the magnetic tongue 31 and narrow neck 32, which are made of magnetic material. This forms a dual fixation of mechanical and magnetic forces, increasing the overall stability of the magnetic unit 3 in the magnet retainer 2.
[0028] Example 3 Based on Embodiment 1, the front tongue 31 of the magnetic unit 3 is provided with an anti-slip texture structure. Preferably, the anti-slip texture structure can be formed by knurling the surface of the front tongue (31) to directly create a micro-rough anti-slip texture, or by covering or embedding at least part of the surface with a layer of rubber or silicone material, or by adding an anti-slip sleeve, to increase the frictional resistance between the magnetic unit and the inner wall of the magnet retainer 2, and prevent the magnetic unit from accidentally sliding or falling off. The inner wall of the magnet retainer 2 is also provided with an elastic pad layer, which can absorb mechanical impact during operation and reduce component collision noise, thereby improving user comfort.
[0029] Example 4 Based on Embodiment 1, the magnetic tool strap includes a strap body 1, which is an adjustable fixing strap. Four magnet holders 2 are sewn onto the strap body 1 at equal intervals. There are multiple magnetic units 3, and the outer surface of the rear adsorption surface 33 of each magnetic unit 3 is coated with a different color to indicate the magnetic strength level. Preferably, there are three magnetic units 3, distinguished by their magnetic strength level, each corresponding to a red, yellow, or blue epoxy coating sprayed onto its rear adsorption surface 33. Red represents a strong magnetic level, yellow represents a medium magnetic level, and blue represents a weak magnetic level. This color coding facilitates quick identification and selection of the desired magnetic unit by the user.
[0030] Example 5 Based on Embodiment 1, the magnetic tool strap includes a strap body 1, which is an adjustable and fixing strap. Multiple magnetic retainers 2 are evenly spaced on the strap body 1. The magnetic retainers 2 are fixed to the strap body 1 via an anchor, which is a connecting shaft that passes sequentially through pre-drilled holes on the magnetic retainers 2 and corresponding holes on the strap body 1. Upper anchor heads 41 and lower anchor heads 42 are formed at both ends of the connecting shaft for mechanical anchoring on both sides of the strap body 1. This structure improves the connection strength of the magnetic retainers 2 on the strap body 1, preventing the retainers from detaching due to the hanging of heavy tools or accidental pulling.
[0031] Example 6 Based on Embodiment 1, the magnetic tool strap includes a strap body 1, which is an adjustable and fixed strap. A magnetic retainer 2 is sewn onto the strap body 1. The slot 21 and inner groove 22 of the magnetic retainer 2 can also be used to install non-magnetic functional modules, such as compatible tool hook compartments, LED light boxes, screwdriver socket accessories, etc. By expanding the types of installable modules, the tool strap is suitable for more diverse work scenarios and functional requirements. Users can flexibly select appropriate modules according to different work scenarios to meet various on-site operation needs such as maintenance, installation, and inspection, achieving a practical effect of multiple uses in one item.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A magnetic tool strap, comprising a strap body (1), characterized in that: The belt (1) is provided with at least one magnet retainer (2), the magnet retainer (2) is provided with a bayonet (21) and an inner groove (22) behind and connected to the bayonet (21); the magnetic unit (3) has an I-shaped cross-section and has a front tongue (31), a narrow neck (32) and a rear adsorption surface (33); the magnetic unit (3) can be detachably placed into the magnet retainer (2).
2. The magnetic tool strap as described in claim 1, characterized in that, The narrow neck (32) passes through the slot (21) from top to bottom, the front tongue (31) is accommodated in the inner groove (22), and the rear adsorption surface (33) is flush with or protrudes from the surface of the magnet retainer; the depth of the inner groove (22) matches the thickness of the front tongue (31), and the width of the slot (21) matches the diameter of the narrow neck (32), so that the magnetic unit (3) does not wobble relative to the magnet retainer (2) after installation.
3. A magnetic tool strap as described in claim 2, characterized in that, The rear adsorption surface (33) is a magnet and covers the outer surface of the magnet holder (2) to form a tool adsorption area. The area of the rear adsorption surface (33) is larger than that of the front insert tongue (31).
4. A magnetic tool strap as described in claim 2, characterized in that, After the front tongue (31) enters the inner groove (22), it is limited by the shoulder (221) of the inner groove (22) in the thickness direction of the belt body, forming a mechanical interlock.
5. A magnetic tool strap as described in claim 2, characterized in that, Anti-slip texture is provided on the front tongue (31) of the magnetic unit (3).
6. A magnetic tool strap as described in claim 2, characterized in that, The magnetic unit (3) has multiple magnetic force levels, and the outer surface of its rear adsorption surface (33) is provided with a coating for indicating the magnetic force level.
7. A magnetic tool strap as described in claim 1, characterized in that, The inner wall of the magnet holder (2) is provided with an elastic pad to absorb impact and reduce shaking noise.
8. A magnetic tool strap as described in claim 1, characterized in that, The magnet holder (2) is sewn onto the belt body (1).
9. A magnetic tool strap as described in claim 1, characterized in that, The magnet fastener (2) is fixed to the belt body (1) by at least one anchor. The anchor is a connecting shaft that passes through the pre-drilled hole on the magnet fastener (2) and the corresponding hole on the belt body (1) in sequence. The two ends of the connecting shaft are respectively formed with an upper anchor head (41) and a lower anchor head (42).
10. A magnetic tool strap as described in claim 1, characterized in that, The slot (21) and inner groove (22) of the magnet retainer (2) also include a non-magnetic functional module.