Connecting structure for head lock lacing device in helmet

Abstract

The utility model relates to the technical field of helmets. The connecting structure for the head lock lacing device in the helmet comprises a shell installed in the helmet, lacing belts are arranged on the two sides of the shell in a sliding mode, a connecting line connected with the ends of the lacing belts is arranged on one side of the shell, a plurality of lead holes are formed in the ends of the lacing belts, and the ends of the connecting line are sequentially wound to penetrate through the lead holes. The utility model provides the connecting structure for the head lock lacing device in the helmet, which is convenient to install, process, manufacture and assemble, can be finely adjusted according to actual conditions, and is fixed on a head lock adjusting structure by utilizing the characteristics of a nylon thread, and the working stability of the whole structure is good; the technical problems that in the prior art, an existing head lock connecting structure is complex, a knot structure is poor in appearance and size, a knot exposed outside is prone to loosening, and an injection molding and rubber coating structure at the head of a nylon wire is complex in process, inconvenient to machine and manufacture, large in size and large in weight are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of helmets, in particular to a connection structure for a head lock tightening device in a helmet. Background Art

[0002] With the development of the economy, various means of transportation are used more and more widely. To ensure safety, helmets are essential protective measures.

[0003] At present, a head lock system is provided in the helmet lock. The current conventional head lock adjustment and fixing structure is connected by a nylon line. Usually, it is necessary to tie a knot at the head of the nylon line or inject a head component at the head of the nylon line. However, the knot of the nylon line tied in this way is large and not easy to hide; while the injection molding and encapsulation structure process is complex and not convenient for processing and manufacturing, and the head component is large in volume and heavy in mass, which is not conducive to lightweight design. Therefore, there is a need for improvement. Summary of the Utility Model

[0004] The utility model provides a connection structure for a head lock tightening device in a helmet, which is convenient for installation, processing and manufacturing, easy to assemble, can be finely adjusted according to actual situations, utilizes the characteristics of the nylon line itself to fix it on the head lock adjustment structure, and has good stability in the overall structure working; it solves the technical problems existing in the prior art that the current head lock connection structure is relatively complex, the knot structure has problems of appearance and volume, and the knot exposed outside is easy to loosen, and the structure of injection molding and encapsulation at the head of the nylon line is complex, not convenient for processing and manufacturing, and has a large volume and heavy weight.

[0005] The above technical problems of the utility model are solved by the following technical solutions: A connection structure for a head lock tightening device in a helmet includes a housing installed inside the helmet. Tightening belts are slidably arranged on both sides of the housing. One side of the housing is provided with a connection line connected to the end of the tightening belt. A plurality of lead holes are opened at the end of the tightening belt, and the end of the connection line sequentially passes through the lead holes by winding. When in use, the housing is installed inside the helmet. The lead holes made of nylon material are connected to the tightening belt, and the connection line sequentially passes through the lead holes by winding. By using the hardness of the nylon line itself, and the size and hole spacing of the lead holes, the sliding damping is increased, so that the connection line can be fixed on the connection protrusion without tying a knot or using other limiting parts and will not be pulled out.

[0006] Preferably, the lead holes are arranged in parallel. The size and spacing of the lead holes can be adjusted according to actual needs. Adjacent lead holes can be arranged in parallel, and are fixed by the size and spacing of the lead holes in cooperation with the nylon material connection line.

[0007] Preferably, the lead holes are not parallel to each other, and the adjacent lead holes are arranged at an oblique angle. The size and spacing of the lead holes can be adjusted according to actual needs. The arrangement of the adjacent lead holes at an oblique angle can increase the sliding damping of the connecting wire according to the actual situation.

[0008] Preferably, the lead holes are not parallel to each other, and the adjacent lead holes are arranged at an oblique angle. The size and spacing of the lead holes can be adjusted according to actual needs. The arrangement of the adjacent lead holes at an oblique angle can increase the sliding damping of the connecting wire according to the actual situation.

[0009] Preferably, the connecting protrusion and the tightening belt are integrally formed. The connecting protrusion and the tightening belt are integrally injection molded, which is convenient for processing and manufacturing.

[0010] Preferably, an inlet hole communicating with the lead hole is formed at one end of the connecting protrusion. During use, the lead hole made of nylon material penetrates through the inlet hole, and the wire is wound through the lead hole in sequence for fixation.

[0011] Preferably, the number of the lead holes is at least 3. The number, size and spacing of the lead holes can be adjusted according to the actual situation. According to actual tests, the number of the lead holes is at least 3 to ensure the stability of the connecting wire and prevent it from being pulled out.

[0012] Therefore, the connection structure of a headlock tightening device for a helmet of the present utility model has the following advantages: it is convenient for installation, processing and manufacturing, and assembly, can be finely adjusted according to the actual situation, uses the characteristics of the nylon wire itself to fix it on the headlock adjustment structure, and the overall structure has good working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic perspective view of the connection structure of a headlock tightening device for a helmet of the present utility model.

[0014] Figure 2 is Figure 1 the enlarged view at A in

[0015] Figure 3 is Figure 1 the schematic perspective view of the tightening belt in

[0016] In the figure, housing 1, tightening belt 2, connecting wire 3, connecting protrusion 4, lead hole 5, inlet hole 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions of the present utility model will be further specifically described below through embodiments in conjunction with the drawings.

[0018] Embodiment:

[0019] As Figure 1and 2 As shown in FIGS. 2 and 3, a connection structure for a head lock tightening device in a helmet includes a housing 1 installed inside the helmet. Two tightening straps 2 are slidably installed on both sides of the housing 1. A connecting wire 3 is installed on the front side of the housing 1. Both ends of the connecting wire 3 are fixedly installed at the ends of the two tightening straps 2.

[0020] A connecting protrusion 4 is integrally formed on the outer side of each end of the tightening strap 2. Four through lead holes 5 are formed on the upper and lower sides of the connecting protrusion 4. Two adjacent lead holes 5 are parallel to each other.

[0021] An inlet hole 6 communicating with the lead hole 5 is formed at the front end of the connecting protrusion 4. The end of the connecting wire 3 is inserted into the inlet hole 6 and is fixedly installed by winding through the lead hole 5 in sequence.

[0022] During use, the connecting wire 3 made of nylon is inserted into the inlet hole 6 and winds through the lead hole 5 in sequence. By utilizing the hardness of the nylon wire itself, and the size and hole spacing of the lead hole 5, the sliding damping is increased, so that the connecting wire 3 can be fixed on the connecting protrusion 4 without knotting or other limiting parts and will not be pulled out.

Claims

1. A connection structure for a head lock tightening device in a helmet, comprising a shell installed in the helmet, and tightening belts are slidably provided on both sides of the shell, characterized in that: A connecting wire connected to the end of the tightening belt is arranged on one side of the shell, and a plurality of lead holes are opened at the end of the tightening belt, and the end of the connecting wire is wound and passed through the lead holes in sequence.

2. A connection structure for a head lock tightening device in a helmet according to claim 1, characterized in that: The lead holes are arranged parallel to each other.

3. The connection structure for the head lock tightening device in the helmet according to claim 1, characterized in that: The lead holes are not parallel to each other, and adjacent lead holes are arranged at an oblique angle.

4. The connection structure for the head lock tightening device in a helmet according to claim 1, characterized in that: A connection protrusion is provided on one side of the end of each tightening belt, and a lead hole is opened on the connection protrusion.

5. The connection structure for the head lock tightening device in the helmet according to claim 4, characterized in that: The connecting protrusion and the tightening belt are integrally formed.

6. A connection structure for a head lock tightening device in a helmet according to claim 5, characterized in that: One end of the connecting protrusion is provided with a wire entry hole which is communicated with the wire lead hole.

7. A connection structure for a head lock tightening device in a helmet according to any one of claims 1 to 5, characterized in that: The number of the lead holes is at least 3.

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