Outdoor operation safety helmet

Abstract

The utility model aims to provide an outdoor operation safety helmet, which comprises a helmet shell and an adjusting assembly, the adjusting assembly comprises a fixing support and a tightening piece, the fixing support comprises a notch ring and a plurality of supporting sheets, one ends of the supporting sheets are connected with each other, and the supporting sheets are connected with the inner side wall of the helmet shell. The other end of each supporting piece is fixedly connected with the notch ring, the tightening piece is arranged on the outer side wall of the helmet shell, the tightening piece is connected with the notch ring, and the tightening piece is used for adjusting the diameter of the notch ring so that the notch ring can be attached to the head of a user. Thus, the outdoor operation safety helmet can be adjusted according to the sizes of the heads of different users, the safety helmet can be better attached to the heads of the users, therefore, the standard wearing of the safety helmet can be effectively improved, and the safety helmet is safer. The outdoor operation safety helmet is further provided with the helmet belt, the helmet belt is matched with the safety helmet head adjusting and fixing structure, the safety helmet can be stably worn on the head of the user, and therefore the protection performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of safety helmets, in particular to a safety helmet for outdoor work. Background Art

[0002] Safety helmets are equipment that protect the user's head from injuries caused by falling objects and other factors. At present, in some dangerous scenes and industries such as construction sites, mining, machinery industry, oil field drilling, flood rescue, etc., wearing safety helmets is written into the relevant rules and regulations for safe production, which shows the importance of safety helmets in safe construction. In order to meet various working scenarios, various functions and equipment are added to the safety helmets on the existing market. For example, a Chinese patent document with publication number CN208511070U discloses a safety helmet, which includes a hemispherical hat shell, an arc-shaped brim integrally formed with the hat shell, and a camera device and a lighting device detachably mounted on the hat shell, the brim is an internal hollow structure and an end away from the hat shell is provided with a first open through groove connected to the internal hollow structure, a baffle assembly that can be extended or retracted into the brim is provided in the hollow structure of the brim, the camera device includes a headband fixed on the hat shell and a camera pivotally connected to one end of the headband, and the camera is arranged to face the front side of the hat shell, and the lighting device includes a lighting lamp and a clamp fixed on the headband, and the lighting lamp is fixed to one end of the headband by the clamp. In this way, the safety helmet can use the camera to collect image information, record all pre-shift and post-shift meetings, safety measures, and the operation process, so as to supervise the operator's operation in real time and improve the standardization of the operation. In addition, when the working environment is dim, the lighting equipment can be used to supplement the light and improve the safety of the operation. Furthermore, the camera equipment and the lighting equipment can be detachably installed on the helmet shell, which can be easily disassembled and assembled, so that the camera equipment and the lighting equipment can be removed when the camera and lighting are not needed. In addition, the brim of the safety helmet is provided with a retractable shielding plate, which can be used to block strong light and rain when the operator is working outdoors, and its structure is simple and retractable.

[0003] However, the existing helmets have the following shortcomings in actual use: adding electronic devices around the helmet means that the weight of the helmet increases, and the weight of the electronic devices is inconsistent, which will cause the center of gravity of the helmet to be unstable. When the user wears it, the helmet is easy to shake or tilt, which seriously affects the user's comfort and affects the standard wearing of the helmet. Therefore, in order to solve the above problems, the outdoor work helmet of the present application is proposed. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and to provide an outdoor work helmet which can be firmly fixed on the user's head even when the center of gravity of the helmet is unstable, so that the helmet can be worn in a standardized manner to improve safety.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A safety helmet for outdoor work, comprising:

[0007] Cap shell; and

[0008] An adjustment component, the adjustment component includes a fixed bracket and a tightening piece, the fixed bracket includes a notch ring and a plurality of support plates, one end of each of the support plates is connected to each other, and each of the support plates is connected to the inner wall of the cap shell, the other end of each of the support plates is fixedly connected to the notch ring, the tightening piece is arranged on the outer wall of the cap shell, and the tightening piece is connected to the notch ring, and the tightening piece is used to adjust the diameter of the notch ring so that the notch ring fits the user's head.

[0009] Optionally, the cap shell further includes an outer shell and an inner shell, the inner shell is arranged on the inner side wall of the outer shell, and a gap is arranged between the inner shell and the outer shell, and each of the support sheets is connected to the inner side wall of the inner shell.

[0010] Optionally, a plurality of heat dissipation holes are provided on the shell, and intervals are provided between the heat dissipation holes.

[0011] Optionally, the tightening member includes a shaft rod, a one-way gear, a locking needle group and a tightening rope, the shaft rod is passed through the outer wall of the outer shell, the one-way gear is arranged on the shaft rod, the locking needle group is arranged on the outer wall of the outer shell, and the locking needle group is engaged with the one-way gear, one end of the tightening rope is arranged on the shaft rod, and the other end of the tightening rope is arranged on the notch ring.

[0012] Optionally, the tightening member further comprises a wire taking-up box, the wire taking-up box is provided with a wire collecting bin and a control bin, the tightening rope is located in the wire collecting bin, and the one-way gear and the locking needle group are both located in the control bin.

[0013] Optionally, the shaft rod further comprises a manual wheel, wherein the manual wheel is arranged at the end of the shaft rod away from the one-way gear and is located outside the wire take-up box.

[0014] Optionally, the shaft rod is provided with a rope clamping hole, the rope clamping hole radially penetrates the shaft rod, and one end of the tightening rope is inserted into the rope clamping hole.

[0015] Optionally, the locking needle group includes an directional needle and a return spring, one end of the directional needle is rotatably set at the bottom of the control compartment, and the other end of the directional needle is engaged with the one-way gear, and both ends of the return spring are respectively abutted against the directional needle and the inner wall of the control compartment.

[0016] Optionally, the hat shell further includes a hat band, and two ends of the hat band are respectively fixedly disposed on two opposing inner side walls of the inner shell.

[0017] Optionally, the cap shell further includes a protective goggles, and two ends of the protective goggles are respectively rotatably disposed on two opposing outer side walls of the inner shell.

[0018] Compared with the prior art, the utility model has at least the following advantages:

[0019] 1. Compared with the existing safety helmets that cannot adjust the head size, the outdoor work safety helmet of the present application can be adjusted according to the head size of different users, so that the safety helmet can better fit the user's head, thereby effectively improving the standard wearing of the safety helmet and making it safer.

[0020] 2. Compared with the existing multifunctional safety helmets, as their functions are increased, the corresponding electronic equipment on the safety helmets will also increase, which will cause the center of gravity of the safety helmet to be unstable and affect the protectiveness of the safety helmet. The outdoor work safety helmet of the present application is also provided with a hat strap, which cooperates with the safety helmet head adjustment and fixing structure to make the safety helmet stably worn on the user's head, so the protectiveness is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of an outdoor work helmet according to one embodiment of the utility model;

[0023] Figure 2 This is a schematic structural diagram of a tightening member according to an embodiment of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of the locking needle assembly and the one-way gear in one embodiment of the utility model;

[0025] Figure 4 This is a schematic structural diagram of a fixing bracket according to an embodiment of the present utility model;

[0026] Figure 5 It is a schematic structural diagram of a protective goggles according to one embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 10. Safety helmet for outdoor work; 100. Helmet shell; 200. Adjustment assembly; 210. Fixed bracket; 220. Tightening piece; 211. Notched ring; 212. Support plate; 2121. Fixing hole; 2113. Opening structure; 2112. Rope hole; 2114. Groove; 111. Rope threading hole; 110. Outer shell; 120. Inner shell; 121. Raised buckle; 122. Raised block; 112. Heat dissipation hole; 221. Shaft; 222. One-way gear; 223. Locking needle group; 224. Tightening rope; 225. Wire collection box; 2251. Wire collection compartment; 2252. Control compartment; 226. Manual wheel; 2211. Rope hole; 2231. Orientation needle; 2232. Reset spring; 130. Hat strap; 140. Goggles. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show preferred embodiments of the present invention.

[0030] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0033] like Figures 1 to 4As shown, an outdoor work safety helmet 10 includes a helmet shell 100 and an adjustment component 200, the adjustment component 200 includes a fixed bracket 210 and a tightening piece 220, the fixed bracket 210 includes a notch ring 211 and a plurality of support plates 212, one end of each support plate 212 is connected to each other, and each support plate 212 is connected to the inner wall of the helmet shell 100, and the other end of each support plate 212 is fixedly connected to the notch ring 211, the tightening piece 220 is arranged on the outer wall of the helmet shell 100, and the tightening piece 220 is connected to the notch ring 211, and the tightening piece 220 is used to adjust the diameter of the notch ring 211 so that the notch ring 211 fits the user's head.

[0034] It should be noted that, further, the notch ring 211 is fixedly connected to the inner side of the cap shell 100 through a plurality of support sheets 212. It should be emphasized that one end of each support sheet 212 is connected to each other, and the other end of each support sheet 212 is fixedly connected to the notch ring 211. In addition, a fixing hole 2121 is provided on the side wall of each support sheet 212, and each can be fixed to the inner side of the cap shell 100 using a plastic rivet, so that the fixing bracket 210 is fixed in the cap shell 100. Further, an opening structure 2113 is provided on the notch ring 211, and rope holes 2112 are provided at both ends of the opening structure 2113. Furthermore, a groove 2114 is provided on the outer wall of the notch ring 211, and the groove 2114 completely covers the outer surface of the notch ring 211, so that the tightening member 220 can apply a force to the two rope holes 2112 of the opening structure 2113 along the groove 2114, so that the notch ring 211 can change its diameter when subjected to the force, so that the notch ring 211 can match the size of the head of different users, and the cap shell 100 is also fixed on the user's head. It should be noted that the tightening member 220 is arranged on the outer wall of the cap shell 100, for example, it is screwed to the outer wall of the cap shell 100 by screws, and it can also be fixed with plastic rivets, and the tightening member 220 and the cap shell 100 are provided with rope holes 111 at relative positions, so that the rope holes 2112 on the notch ring 211 are connected to the inside of the tightening member 220. In this way, the diameter of the notch ring 211 can be adjusted by the tightening member 220 to ensure that the notch ring 211 is firmly put on the user's head, that is, to ensure that the safety helmet is stably worn, thereby improving work safety.

[0035] like Figure 1 As shown, in one embodiment, the cap shell 100 further includes an outer shell 110 and an inner shell 120 , the inner shell 120 is disposed on the inner side wall of the outer shell 110 , and a gap is disposed between the inner shell 120 and the outer shell 110 , and each support sheet 212 is connected to the inner side wall of the inner shell 120 .

[0036] It should be noted that a plurality of protruding buckles 121 and a plurality of protruding blocks 122 are provided on the outer wall of the inner shell 120. The protruding buckles 121 are provided around the outer wall of the inner shell 120 and are buckled with the outer shell 110 so that the outer shell 110 is completely fixed on the outer wall of the inner shell 120. Furthermore, the protruding block 122 is located at the top of the outer wall of the inner shell 120 so that a gap is formed between the outer shell 110 and the inner shell 120. Furthermore, each support sheet 212 is fixedly connected to the inner shell 120 and the notch ring 211 respectively, so that when impacted, there is a certain distance between the impact point of the outer shell 110 and the inner shell 120 for buffering, so as to avoid the force point directly acting on the inner shell 120, reduce the injury to the user, and improve the protectiveness of the helmet.

[0037] like Figure 1 As shown, in one embodiment, a plurality of heat dissipation holes 112 are formed on the housing 110 , and intervals are provided between the heat dissipation holes 112 .

[0038] It should be noted that the heat dissipation holes 112 are arranged around the outer shell 110 so that air flow can be generated in the gap between the outer shell 110 and the inner shell 120, and intervals are provided between the heat dissipation holes 112, for example, the heat dissipation holes 112 are evenly arranged, so that when there is air flow, the gap between the outer shell 110 and the inner shell 120 can quickly dissipate heat, making the user more comfortable.

[0039] like Figure 1 As shown, in one embodiment, the tightening member 220 includes a shaft 221, a one-way gear 222, a locking needle group 223 and a tightening rope 224, the shaft 221 is passed through the outer wall of the outer shell 110, the one-way gear 222 is arranged on the shaft 221, the locking needle group 223 is arranged on the outer wall of the outer shell 110, and the locking needle group 223 is clamped with the one-way gear 222, one end of the tightening rope 224 is arranged on the shaft 221, and the other end of the tightening rope 224 is arranged on the notch ring 211.

[0040] It should be noted that the shaft 221 is a cylindrical rod, and the one-way gear 222 is installed at one end of the shaft 221, for example, by welding, fixing or screwing, so that when the shaft 221 rotates or slides, the one-way gear 222 also rotates or slides synchronously. Further, the locking needle group 223 is arranged on the outer wall of the housing 110, and the locking needle group 223 is engaged with the one-way gear 222, so that the shaft 221 rotates in one direction. For example, the one-way gear 222 and the locking needle group 223 are ratchet structures. Furthermore, one end of the tightening rope 224 is arranged on the shaft rod 221, and the other end of the tightening rope 224 is provided with two rope heads and is connected to the notch ring 211. It should be emphasized that the two rope heads of the tightening rope 224 respectively extend along the grooves 2114 on both sides of the side wall of the notch ring 211 to the opening structure 2113 of the notch ring 211, and are connected to the opening structure 2113 opposite to each other. When the shaft rod 221 rotates, one end of the tightening rope 224 is wrapped around the shaft rod 221, and the other end of the tightening rope 224 tightens the opening structure 2113 of the notch ring 211, so that the notch ring 211 changes its diameter. In this way, the notch ring 211 can fix the fixing bracket 210 on the user's head according to the size of the user's head.

[0041] like Figure 1 , Figure 2 As shown, in one embodiment, the tightening member 220 further includes a wire collection box 225, the wire collection box 225 is provided with a wire collection bin 2251 and a control bin 2252, the tightening rope 224 is located in the wire collection bin 2251, and the one-way gear 222 and the locking needle group 223 are both located in the control bin 2252.

[0042] It should be noted that the wire receiving box 225 is mounted on the outer wall of the housing 110. For example, the wire receiving box 225 can be fixed on the housing 110 by welding, soldering or screwing. The wire collecting bin 2251 is arranged at the upper part of the wire receiving box 225, and the control bin 2252 is arranged at the lower part of the wire receiving box 225. Further, the shaft 221 is rotatably arranged in the inside of the wire collecting bin 2251 and the control bin 2252, so that the shaft 221 rotates or slides in the wire collecting bin 2251 and the control bin 2252. Further, the one-way gear 222 is located in the control bin 2252, so that when the shaft 221 rotates or slides, the one-way gear 222 rotates or slides in the control bin 2252. Furthermore, the locking needle group 223 is rotatably installed at the bottom of the control chamber 2252. For example, the locking needle group 223 is fixed to the inner wall of the control chamber 2252 by a pin shaft, so that the locking needle group 223 can rotate relative to the control chamber 2252, and the locking needle group 223 is engaged with the one-way gear 222. In this way, when the shaft 221 rotates, the one-way gear 222 rotates, and when the shaft 221 slides, the one-way gear 222 and the locking needle group 223 are released, so that the one-way gear 222 can rotate in the opposite direction.

[0043] like Figure 2 As shown, in one embodiment, the tightening member 220 further includes a manual wheel 226 . The manual wheel 226 is disposed at the end of the shaft 221 away from the one-way gear 222 and is located outside the take-up box 225 .

[0044] It should be noted that the manual wheel 226 is provided with an anti-slip structure around it and is fixedly mounted on the end of the shaft 221 away from the one-way gear 222. For example, the manual wheel 226 is fixed on the shaft 221 by welding, fixing or screwing, and is located outside the wire receiving box 225. Further, the shaft 221 is rotated or slid by the manual wheel 226 to adjust the size of the notch ring 211. In this way, the user can operate the manual wheel 226 outside the wire receiving box 225 to improve the user's operability.

[0045] like Figure 1 As shown, in one embodiment, the shaft rod 221 is provided with a rope clamping hole 2211 , the rope clamping hole 2211 radially penetrates the shaft rod 221 , and one end of the tightening rope 224 is inserted into the rope clamping hole 2211 .

[0046] It should be noted that one end of the tightening rope 224 is passed through the shaft 221 and is located in the wire collection bin 2251. In this way, when the shaft 221 rotates, the tightening rope 224 is wound around the shaft 221 and is located in the wire collection bin 2251. Further, when the shaft 221 rotates in the opposite direction, the tightening rope 224 is loosened from the shaft 221, so that the diameter of the notch ring 211 can be adjusted.

[0047] like Figure 2 , Figure 3 As shown, in one embodiment, the locking needle group 223 includes an oriented needle 2231 and a return spring 2232, one end of the oriented needle 2231 is rotatably set at the bottom of the control compartment 2252, and the other end of the oriented needle 2231 is engaged with the one-way gear 222, and the two ends of the return spring 2232 are respectively abutted against the oriented needle 2231 and the inner wall of the control compartment 2252.

[0048] It should be noted that one end of the directional pin 2231 is rotatably mounted on the bottom of the control chamber 2252. For example, the directional pin 2231 is fixed to the inner wall of the control chamber 2252 via a pin shaft, so that the directional pin 2231 can rotate relative to the control chamber 2252. The other end of the directional pin 2231 is provided with a sharp corner portion, which is engaged with the gear teeth of the one-way gear 222. The two ends of the return spring 2232 are respectively abutted against the directional needle 2231 and the inner wall of the control chamber 2252, so that the directional needle 2231 remains engaged with the one-way gear 222. In this way, when the one-way gear 222 rotates forward, the sharp corner of the directional needle 2231 leaves the gear teeth of the one-way gear 222, so that the one-way gear 222 can continue to rotate, so that the tightening rope 224 is wrapped around the shaft rod 221. When the one-way gear 222 rotates reversely, the directional needle 2231 is pushed by the return spring 2232, and the sharp corner of the directional needle 2231 is again engaged with the gear teeth of the one-way gear 222, so that the one-way gear 222 stops rotating reversely. In this way, the tightening rope 224 on the shaft rod 221 will remain wrapped around the shaft rod 221, so that the notch ring 211 remains unchanged after being adjusted to a suitable diameter. Furthermore, the one-way gear 222 is fixed on the shaft 221. When the shaft 221 slides, the one-way gear 222 slides in the control compartment 2252. For example, when the shaft 221 slides upward, the one-way gear 222 can slide upward and disengage from the engagement of the directional pin 2231. In this way, the one-way gear 222 can rotate to tighten or loosen the notch ring 211 to adjust to the size of the user's head. Further, after adjusting to a suitable size, the manual wheel 226 is pressed to slide the one-way gear 222 downward and restore the engagement state with the directional pin 2231, so that the notch ring 211 can maintain the adjusted size. In this way, the outdoor work safety helmet 10 can be adjusted according to the size of the user's head and remain fixed.

[0049] like Figure 1 As shown, in one embodiment, the hat shell 100 further includes a hat band 130 , and two ends of the hat band 130 are respectively fixedly disposed on two opposing inner side walls of the inner shell 120 .

[0050] It should be noted that the two ends of the visor 130 are respectively provided with triangular structures and are respectively fixed on the inner side walls of the inner shell 120, so that the vertical downward force of the visor 130 can be maintained, so that the visor 130 can be better fixed vertically to the user's chin. Furthermore, the user's head is provided with an adjustable fixed notch ring 211, so that the helmet can be effectively prevented from shaking or tilting due to unstable center of gravity, affecting the wearer's comfort and the wearing standard of the helmet.

[0051] like Figure 1 , Figure 5As shown, in one embodiment, the cap shell 100 further includes a protective mirror 140 , and two ends of the protective mirror 140 are respectively rotatably disposed on two opposite outer side walls of the inner shell 120 .

[0052] It should be noted that the protective mirror 140 is an arc-shaped structure, and is rotatably mounted on the two opposite outer side walls of the inner shell 120, so that the protective mirror 140 can be rotated and stored in the gap between the outer shell 110 and the inner shell 120, and can also be rotated and moved out from the gap between the outer shell 110 and the inner shell 120, so that the protective mirror 140 can be moved out of the protective mirror 140 or put away according to the actual situation of the user. For example, when working in a rainy environment, the protective mirror 140 can be moved out to prevent rain from hitting the user's face and prevent rain from affecting the user's field of vision. Furthermore, a limit point is provided on the outer side wall of the inner shell 120, so that after the protective mirror 140 is completely moved out, the outermost edge of the protective mirror 140 is kept at the same horizontal position as the user's eyes, so that rain can be prevented from staying on the protective mirror 140 and affecting the user's field of vision, so as to improve the safety of working in rainy days.

[0053] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A safety helmet for outdoor work, characterized in that: include: Cap shell; and An adjustment component, the adjustment component includes a fixed bracket and a tightening piece, the fixed bracket includes a notch ring and a plurality of support plates, one end of each of the support plates is connected to each other, and each of the support plates is connected to the inner wall of the cap shell, the other end of each of the support plates is fixedly connected to the notch ring, the tightening piece is arranged on the outer wall of the cap shell, and the tightening piece is connected to the notch ring, and the tightening piece is used to adjust the diameter of the notch ring so that the notch ring fits the user's head.

2. The outdoor work helmet according to claim 1, characterized in that: The cap shell further comprises an outer shell and an inner shell, wherein the inner shell is arranged on the inner side wall of the outer shell, and a gap is arranged between the inner shell and the outer shell, and each of the supporting sheets is connected to the inner side wall of the inner shell.

3. The outdoor work helmet according to claim 2, characterized in that: The shell is provided with a plurality of heat dissipation holes, and intervals are arranged between the heat dissipation holes.

4. The outdoor work helmet according to claim 2, characterized in that: The tightening member includes a shaft rod, a one-way gear, a locking needle group and a tightening rope. The shaft rod is passed through the outer wall of the outer shell, the one-way gear is arranged on the shaft rod, the locking needle group is arranged on the outer wall of the outer shell, and the locking needle group is engaged with the one-way gear. One end of the tightening rope is arranged on the shaft rod, and the other end of the tightening rope is arranged on the notch ring.

5. The outdoor work helmet according to claim 4, characterized in that: The tightening member also includes a wire collection box, which is provided with a wire collection bin and a control bin. The tightening rope is located in the wire collection bin, and the one-way gear and the locking needle group are both located in the control bin.

6. The outdoor work helmet according to claim 5, characterized in that: The tightening member also includes a manual wheel, which is arranged at the end of the shaft rod away from the one-way gear and is located outside the wire take-up box.

7. The outdoor work helmet according to claim 6, characterized in that: The shaft rod is provided with a rope clamping hole, the rope clamping hole radially penetrates the shaft rod, and one end of the tightening rope is inserted into the rope clamping hole.

8. The outdoor work helmet according to claim 5, characterized in that: The locking needle group includes an directional needle and a return spring. One end of the directional needle is rotatably set at the bottom of the control compartment, and the other end of the directional needle is engaged with the one-way gear. The two ends of the return spring are respectively in contact with the directional needle and the inner wall of the control compartment.

9. The outdoor work helmet according to claim 2, characterized in that: The hat shell further comprises a hat band, and two ends of the hat band are respectively fixedly arranged on two inner side walls facing each other of the inner shell.

10. The outdoor work helmet according to claim 2, characterized in that: The cap shell also includes a protective mirror, and the two ends of the protective mirror are respectively rotatably arranged on the two opposite outer side walls of the inner shell.

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