A snap-on fixing structure suitable for power cords of different diameters

By designing an interlocking fixing structure that adapts to power cords of different diameters, the problem of poor universality of power cords of different specifications in the existing technology is solved, achieving the same fixing effect and installation efficiency, and enhancing assembly convenience.

CN224343528UActive Publication Date: 2026-06-09NINGBO DECHANG ELECTRICAL MACHINERY MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DECHANG ELECTRICAL MACHINERY MFG CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the existing technology, different specifications of power cords require different fixing structures, resulting in more parts, poor versatility, waste of resources, and a high risk of production errors.

Method used

A snap-fit ​​fixing structure suitable for power cords of different diameters was designed. The power cord is fixed by the staggered snap-fit ​​of snap-fit ​​rib one and snap-fit ​​rib two. Combined with adjustable recessed grooves and recessed parts, reliable fixing of power cords of different specifications can be achieved.

Benefits of technology

It improves the fixing effect and installation efficiency, enhances the versatility of parts, reduces the probability of production errors, lowers manufacturing and maintenance costs, and simplifies the connection method, reducing maintenance difficulty and costs and improving assembly convenience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224343528U_ABST
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Abstract

The utility model discloses a kind of occlusion type fixing structures suitable for power cord of different diameters.It includes: handle shell;Shell opening;Power cord;Wire holder;Wire pressing plate;Several occlusion bars one, setting on wire holder, occlusion bar one is located on the side of wire holder opposite to power cord, occlusion bar one is arranged along the axial direction of power cord in interval type, the shape of occlusion bar one, the interval of adjacent two occlusion bars one are matched with power cord;Several occlusion bars two, setting on wire pressing plate, occlusion bar two is located on the side of wire pressing plate opposite to power cord, occlusion bar two is arranged along the axial direction of power cord in interval type, the shape of occlusion bar two, the interval of adjacent two occlusion bars two are matched with power cord, occlusion bar two and occlusion bar one are distributed in staggered type.The utility model has the beneficial effects that: the versatility of part is improved, corresponding manufacturing cost is saved and the probability of error in production end is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of power cord fixing, and in particular to an interlocking fixing structure suitable for power cords of different diameters. Background Technology

[0002] A hair dryer consists of a set of resistance wires and a high-speed motor. The high-speed motor contains fan blades that blow air. When powered on, the resistance wires generate heat, and the air blown by the fan passes through the resistance wires, turning into hot air. If only the small fan is running, but the resistance wires are not heated, then only air will be blown out, not hot air.

[0003] Currently, the same hair dryer product requires different power cord specifications for different countries or regions. Therefore, different fixing structures are needed for fixing different power cord specifications, resulting in more parts, poor versatility, waste of resources, and an increased risk of using the wrong parts in the production process.

[0004] In summary, there is a need for an interlocking fixing structure that can improve versatility and is suitable for power cords of different diameters. Utility Model Content

[0005] This invention aims to overcome the shortcomings of existing technologies where different specifications of power cords require different fixing structures for installation, resulting in numerous parts, poor versatility, waste of resources, and increased risk of using incorrect parts during production. It provides an interlocking fixing structure that improves versatility and is suitable for power cords of different diameters.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A snap-fit ​​fixing structure suitable for power cords of different diameters, comprising:

[0008] Handle housing;

[0009] A housing opening is provided on the surface of the handle housing;

[0010] The power cord passes through the opening in the housing and is located inside the handle housing.

[0011] A cable holder is disposed inside the handle housing and located on one side of the power cord;

[0012] A wire clamping plate is disposed inside the handle housing and on the other side of the power cord, and the wire clamping plate is disposed opposite to the wire clip.

[0013] Several interlocking ribs are disposed on the cable holder. The interlocking ribs are located on the side of the cable holder facing the power cord. The interlocking ribs are arranged at intervals along the axial direction of the power cord. The shape of the interlocking ribs and the spacing between two adjacent interlocking ribs are matched with the power cord.

[0014] Several interlocking ribs are provided on the pressure plate. The interlocking ribs are located on the side of the pressure plate facing the power line. The interlocking ribs are arranged at intervals along the axial direction of the power line. The shape of the interlocking ribs and the spacing between two adjacent interlocking ribs are matched with the power line. The interlocking ribs are staggered from the interlocking ribs.

[0015] The power cord is installed and positioned using a clamping plate and a clamping seat. The clamping ribs on the clamping seat and the clamping plate interlock and secure the power cord, allowing for better fixation within a limited space while facilitating crimping and installation, thus improving both the fixing effect and installation efficiency. During the design process, the shape and size of the first clamping rib, the spacing between adjacent first clamping ribs, and the shape and size of the second clamping rib, as well as the spacing between adjacent second clamping ribs, can all be adjusted according to the power cord material and diameter to accommodate power cords of different certification standards. This allows for the installation and fixing of power cords of different specifications using the same fixing structure, ensuring reliable power cord fixation, improving component versatility, saving manufacturing costs, and reducing the probability of errors at the production end.

[0016] Preferably, the cable holder has a recessed groove that matches one side of the power cord, and the first interlocking rib is located on the groove wall. The pressure plate has a recessed portion that matches the other side of the power cord, and the second interlocking rib is located on the side wall of the recessed portion. The recessed groove and the recessed portion are designed with dimensions adjusted according to the power cord material and diameter to accommodate power cords of different certification standards. This allows for the installation and fixation of power cords of different specifications using the same fixing structure, ensuring the reliability of the power cord fixation, improving the versatility of the parts, saving corresponding manufacturing costs, and reducing the probability of errors at the production end. The bottom surface diameters of the recessed groove of the cable holder and the recessed portion of the pressure plate are both larger than the largest diameter among different power cord specifications. The bottom surfaces of the recessed groove of the cable holder and the recessed portion of the pressure plate are not directly pressed against the surface of the power cord, but are instead engaged and fixed by the first and second interlocking ribs, respectively.

[0017] Preferably, the inner wall of the handle housing has a threaded hole 1 located on both sides of the cable holder. The two ends of the cable clamping plate have threaded holes 2 that match the threaded hole 1. The threaded hole 1 and the threaded hole 2 are connected by a fixing screw 1. During installation, the power cord is placed on the cable holder and covered by the cable clamping plate. Then, the threaded hole 2 on the cable clamping plate is aligned with the threaded hole 1 on the inner wall of the handle housing, and finally, the fixing screw 1 is tightened to secure it. This connection method is simple and easy to operate, facilitating installation and disassembly, and reducing the difficulty of later maintenance and repair.

[0018] Preferably, the handle housing includes a left handle shell and a right handle shell that are fitted together. The cable retainer is located on the left handle shell, and the housing opening is located at the connection between the left and right handle shells. The left and right handle shells are interlocked. During assembly, the power cord is first installed on the left handle shell, and then the right handle shell is placed on top of the left handle shell to complete the assembly, improving assembly convenience.

[0019] Preferably, the left shell of the handle is provided with a threaded hole three, and the right shell of the handle is provided with a threaded hole four that matches the threaded hole three. The threaded hole three and the threaded hole four are connected by a fixing screw two. When fixing, align the threaded hole four on the right shell of the handle with the threaded hole three on the left shell of the handle, and then tighten the fixing screw two. The connection method is simple and easy to operate, convenient for installation and disassembly, and reduces the difficulty of later maintenance and repair.

[0020] Preferably, the power cord is provided with a protective sleeve that matches the opening of the housing. The protective sleeve is fitted over the outside of the power cord and fixedly connected to it. The surface of the protective sleeve is provided with a limiting ring groove. Both the left and right shells of the handle are fixed with limiting arc buckles that match the limiting ring grooves. The limiting arc buckles and the limiting ring grooves are interlocked. The protective sleeve protects the power cord. During installation, one side of the limiting ring groove is inserted into the limiting arc buckle on the left shell of the handle, and the limiting arc buckle on the right shell of the handle is inserted into the other side of the limiting ring groove for further fixation. This ensures that the fixed protective sleeve and power cord cannot be pulled out, improving the fixing effect of the protective sleeve and power cord.

[0021] Preferably, the handle housing is provided with a handle cover, which is installed on the outside of the housing opening. The handle cover has a clearance through hole that matches the cable protection sleeve. Both the left and right handle housings are provided with buckles, and the handle cover has a matching fastener body fixed to it. The fastener body and the buckle engage with each other. After the left and right handle housings are assembled, the handle cover is then fastened to the housing opening to further secure the left and right handle housings, thus completing the assembly. During installation, the fastener body on the handle cover is aligned with the buckles on the left and right handle housings, and then the fastening operation is performed. The connection method is simple and easy to operate, facilitating installation and disassembly, and reducing the difficulty of later maintenance and repair.

[0022] The beneficial effects of this utility model are: improved fixing effect and installation efficiency; improved versatility of parts, reduced corresponding manufacturing costs and reduced probability of errors at the production end; simple and easy-to-operate connection method, convenient installation and disassembly, reduced difficulty of later maintenance and repair; and improved assembly convenience. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is the front view of this utility model;

[0025] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is an exploded view of one orientation of this utility model;

[0027] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0028] Figure 6 This is an exploded view of the present invention from another direction;

[0029] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0030] In the diagram: 1. Handle housing, 2. Housing opening, 3. Power cord, 4. Cable holder, 5. Cable clamping plate, 6. Engaging rib one, 7. Engaging rib two, 8. Recessed groove, 9. Recessed part, 10. Threaded hole one, 11. Threaded hole two, 12. Fixing screw one, 13. Left handle housing, 14. Right handle housing, 15. Threaded hole three, 16. Threaded hole four, 17. Fixing screw two, 18. Limiting ring groove, 19. Limiting arc buckle, 20. Handle cover, 21. Clearance through hole, 22. Buckle, 23. Buckle body, 24. Cable sleeve. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 , Figure 2 and Figure 3 In the embodiments described above, a snap-fit ​​fixing structure suitable for power cords of different diameters includes:

[0033] Handle housing 1;

[0034] The housing opening 2 is provided on the surface of the handle housing 1;

[0035] The power cord 3 passes through the housing opening 2 and is placed inside the handle housing 1;

[0036] The cable holder 4 is located inside the handle housing 1 and on one side of the power cord 3;

[0037] The wire clamping plate 5 is located inside the handle housing 1 and on the other side of the power cord 3. The wire clamping plate 5 and the wire clip 4 are arranged opposite to each other.

[0038] Several interlocking ribs 6 are provided on the cable holder 4. The interlocking ribs 6 are located on the side of the cable holder 4 facing the power line 3. The interlocking ribs 6 are arranged in an intermittent manner along the axial direction of the power line 3. The shape of the interlocking ribs 6 and the spacing between two adjacent interlocking ribs 6 are matched with the power line 3.

[0039] Several interlocking ribs 2 7 are set on the pressure plate 5. The interlocking ribs 2 7 are located on the side of the pressure plate 5 facing the power line 3. The interlocking ribs 2 7 are arranged in an intermittent manner along the axis of the power line 3. The shape of the interlocking ribs 2 7 and the spacing between two adjacent interlocking ribs 2 7 are matched with the power line 3. The interlocking ribs 2 7 and the interlocking ribs 1 6 are distributed in a staggered manner.

[0040] Both the first interlocking rib 6 and the second interlocking rib 7 are rounded to prevent sharp turning surfaces from cutting the surface of the power cord 3 when it is pressed and fixed, thus avoiding damage and safety risks.

[0041] like Figure 4 and Figure 5 As shown, the cable holder 4 has a recessed groove 8 that matches one side of the power cord 3, and the interlocking rib 6 is located on the groove wall of the recessed groove 8, as shown. Figure 6 and Figure 7 As shown, the pressure plate 5 has a recess 9 that matches the other side of the power cord 3, and the second interlocking rib 7 is located on the side wall of the recess 9. The diameter of the bottom surface of the cable holder recess 8 and the pressure plate recess 9 is larger than the largest diameter among the different specifications of power cords 3. The bottom surface of the cable holder recess 8 and the pressure plate recess 9 is not directly pressed and fixed to the surface of the power cord 3, but is respectively interlocked and fixed by the first interlocking rib 6 and the second interlocking rib 7.

[0042] like Figure 4 and Figure 5 As shown, the inner wall of the handle housing 1 is provided with a threaded hole 10, which is located on both sides of the cable holder 4. The two ends of the cable clamping plate 5 are provided with threaded holes 11 that match the threaded hole 10. The threaded hole 10 and the threaded hole 11 are connected by a fixing screw 12.

[0043] like Figure 6 and Figure 7 As shown, the handle housing 1 includes a left handle housing 13 and a right handle housing 14 that are fitted together. A cable clamp 4 is disposed on the left handle housing 13. The housing opening 2 is located at the connection between the left handle housing 13 and the right handle housing 14. The left handle housing 13 and the right handle housing 14 are interlocked.

[0044] The left shell 13 of the handle is provided with a threaded hole 3 15, and the right shell 14 of the handle is provided with a threaded hole 4 16 that matches the threaded hole 3 15. The threaded hole 3 15 and the threaded hole 4 16 are connected by a fixing screw 2 17.

[0045] like Figure 4 , Figure 5 and Figure 6 As shown, the power cord 3 is provided with a protective sleeve 24, which is fitted onto the outside of the power cord 3 and fixedly connected to it. The surface of the protective sleeve 24 is provided with a limiting ring groove 18. Both the left and right shells of the handle 13 and the right shell of the handle 14 are fixed with limiting arc buckles 19 that match the limiting ring groove 18. Figure 2 and Figure 3 As shown, the limiting arc buckle 19 is provided at the opening 2 of the housing, and the limiting arc buckle 19 and the limiting ring groove 18 are inserted into each other.

[0046] like Figure 2 and Figure 3 As shown, the handle housing 1 is provided with a handle cover 20, which is installed on the outside of the housing opening 2. The handle cover 20 is provided with a clearance through hole 21 that matches the cable protection sleeve 24. Figure 4 , Figure 5 and Figure 6 As shown, both the left and right shells of the handle 13 and the right shell of the handle 14 are provided with buckles 22, and the handle cover 20 is fixed with a buckle body 23 that matches the buckle 22. The buckle body 23 and the buckle 22 are engaged with each other.

[0047] During assembly, the power cord 3 is placed on the cable holder 4 and covered by the cable clamping plate 5 (at this time, one side of the limiting ring groove 18 on the cable sleeve 24 is inserted into the limiting arc buckle 19 on the left shell 13 of the handle). Then, the threaded hole 11 on the cable clamping plate 5 is aligned with the threaded hole 10 on the left shell 13 of the handle and tightened by the fixing screw 10. The interlocking rib 6 on the cable holder 4 and the interlocking rib 7 on the cable clamping plate 5 interlock and fix the power cord 3. Then, the right shell 14 of the handle is placed on the left shell 13 of the handle and fastened (at this time, the limiting arc buckle 19 on the right shell 14 of the handle is inserted into the other side of the limiting ring groove 18 for further limiting and fixing). Then, the threaded hole 16 on the right shell 14 of the handle is aligned with the threaded hole 15 on the left shell 13 of the handle and tightened by the fixing screw 17. Finally, the handle cover 20 is fastened to the shell opening 2 to further fix the left shell 13 and the right shell 14 of the handle, thus completing the assembly.

[0048] During the design process, the recessed dimensions of the recessed groove 8 and the recessed part 9 can be adjusted according to the material and diameter of the power cord 3. The shape and size of the first interlocking rib 6, the spacing between two adjacent first interlocking ribs 6, the shape and size of the second interlocking rib 7, and the spacing between two adjacent second interlocking ribs 7 can all be adjusted according to the material and diameter of the power cord 3 to accommodate power cords with different certification standards, thus enabling the same fixing structure to install and fix power cords of different specifications.

Claims

1. A snap-fit ​​fixing structure suitable for power cords of different diameters, characterized in that, include: Handle housing (1); A housing opening (2) is provided on the surface of the handle housing (1); The power cord (3) passes through the housing opening (2) and is placed inside the handle housing (1); The cable holder (4) is located inside the handle housing (1) and on one side of the power cord (3); The wire clamping plate (5) is disposed inside the handle housing (1) and located on the other side of the power cord (3). The wire clamping plate (5) and the wire holder (4) are disposed opposite to each other. Several interlocking ribs (6) are provided on the wire clamp (4). The interlocking ribs (6) are located on the side of the wire clamp (4) facing the power line (3). The interlocking ribs (6) are arranged in an intermittent manner along the axial direction of the power line (3). The shape of the interlocking ribs (6) and the spacing between two adjacent interlocking ribs (6) are matched with the power line (3). Several interlocking ribs (7) are provided on the pressure plate (5). The interlocking ribs (7) are located on the side of the pressure plate (5) facing the power line (3). The interlocking ribs (7) are arranged in an intermittent manner along the axial direction of the power line (3). The shape of the interlocking ribs (7) and the spacing between two adjacent interlocking ribs (7) are matched with the power line (3). The interlocking ribs (7) are staggered from the interlocking ribs (6).

2. The interlocking fixing structure suitable for power cords of different diameters according to claim 1, characterized in that, The cable holder (4) is provided with a recessed groove (8) that matches one side of the power cord (3), the first interlocking rib (6) is located on the groove wall of the recessed groove (8), the pressure plate (5) is provided with a recessed part (9) that matches the other side of the power cord (3), and the second interlocking rib (7) is located on the side wall of the recessed part (9).

3. The interlocking fixing structure suitable for power cords of different diameters according to claim 1, characterized in that, The inner wall of the handle housing (1) is provided with a threaded hole one (10), the threaded hole one (10) is located on both sides of the cable holder (4), and the two ends of the pressure plate (5) are provided with threaded holes two (11) that match the threaded hole one (10). The threaded hole one (10) and the threaded hole two (11) are connected by a fixing screw one (12).

4. A snap-fit ​​fixing structure suitable for power cords of different diameters according to any one of claims 1-3, characterized in that, The handle housing (1) includes a left handle housing (13) and a right handle housing (14) that are matched and installed together. The cable holder (4) is disposed on the left handle housing (13). The housing opening (2) is located at the connection between the left handle housing (13) and the right handle housing (14). The left handle housing (13) and the right handle housing (14) are interlocked.

5. The interlocking fixing structure suitable for power cords of different diameters according to claim 4, characterized in that, The left shell (13) of the handle is provided with a threaded hole three (15), and the right shell (14) of the handle is provided with a threaded hole four (16) that matches the threaded hole three (15). The threaded hole three (15) and the threaded hole four (16) are connected by a fixing screw two (17).

6. The interlocking fixing structure suitable for power cords of different diameters according to claim 4, characterized in that, The power cord (3) is provided with a protective sleeve (24), which is fitted onto the outside of the power cord (3) and fixedly connected to it. The surface of the protective sleeve (24) is provided with a limiting ring groove (18). The left shell (13) and the right shell (14) of the handle are both fixed with limiting arc buckles (19) that match the limiting ring groove (18). The limiting arc buckles (19) are set at the opening (2) of the shell, and the limiting arc buckles (19) and the limiting ring groove (18) are inserted into each other.

7. The interlocking fixing structure suitable for power cords of different diameters according to claim 6, characterized in that, The handle housing (1) is provided with a handle cover (20), which is installed on the outside of the housing opening (2). The handle cover (20) is provided with a clearance through hole (21) that matches the cable sleeve (24). The left handle housing (13) and the right handle housing (14) are both provided with buckles. The handle cover (20) is fixed with a buckle body (23) that matches the buckle (22). The buckle body (23) and the buckle (22) are engaged with each other.