Safety helmet mask overturning angle locking mechanism

Abstract

The utility model relates to the field of safety helmets, in particular to a safety helmet mask overturning angle locking mechanism which comprises a safety helmet, inserting grooves are formed in the two sides of the safety helmet, inserting pieces are inserted into the inserting grooves, guide rails are movably connected to the inserting pieces, one end of each guide rail is connected with a frame assembly through a rotating mechanism, and the other end of each guide rail is connected with a locking mechanism. And a surface screen is fixed on the frame assembly. According to the safety helmet mask overturning angle locking mechanism, an anti-splashing mask can be fixed to a safety helmet, the overturning angle locking mechanism is used, the overturning angle of the mask can be changed according to needs, and meanwhile the using position can be adjusted according to needs.

Description

Technical Field

[0001] This utility model relates to the field of safety helmets, specifically to a safety helmet face shield flip angle locking mechanism. Background Technology

[0002] In industries such as industrial production and construction, workers often need to work in hazardous environments such as working at heights, operating machinery, and transporting objects, making head safety particularly critical. Safety helmets have excellent energy absorption and cushioning properties, effectively reducing the impact of external forces on the head and protecting workers' head safety.

[0003] During construction, to ensure clear visibility, face shields are usually not used, so safety helmets are typically not equipped with face shields. However, for special operations such as cutting, grinding, and welding, face shields are usually required on safety helmets to protect the face and neck from flying metal debris. Workers usually need to hold the face shield by hand or use a fixed face shield that is directly attached to the safety helmet to effectively block these harmful substances from harming the body. However, since both hands are often required for operation, handheld face shields are often unusable, and only a fixed face shield can be used.

[0004] Due to the requirements of the construction site environment, safety helmets must be worn when entering the work area. In special work areas, workers often remove their safety helmets in violation of the work process because the fixed angle of the visor on the safety helmet obstructs their vision. This violates the work requirements and poses a significant safety hazard. Utility Model Content

[0005] This utility model discloses a safety helmet face shield flip angle locking mechanism. By fixing the splash-proof face shield to the safety helmet, the flip angle of the face shield can be changed as needed using the flip angle locking mechanism, and the usage position can also be adjusted as required.

[0006] This utility model is achieved through the following technical solution:

[0007] A safety helmet face shield flip angle locking mechanism includes a safety helmet, with slots on both sides of the safety helmet, inserting connectors into the slots, and guide rails movably connected to the inserts. One end of the guide rails is connected to a frame assembly via a rotating mechanism, and a face shield is fixed on the frame assembly.

[0008] Furthermore, the rotating mechanism includes an annular frame and a guide shaft. The guide shaft is inserted into the annular frame. The guide shaft is provided with a circumferential groove A. The inner wall of the annular frame is provided with a groove B that matches the shape of the groove A. When the guide shaft is inserted into the annular frame and fixed, the groove A and the groove B are matched in position and an O-ring is provided between them.

[0009] Furthermore, a limiting boss is provided at the free end of the guide rail shaft, and a limiting groove is provided on the annular frame to cooperate with the limiting boss. When the guide rail shaft is inserted into the annular frame for fixation, the limiting boss is engaged with the limiting groove.

[0010] Furthermore, the upper part of the connector is provided with a sliding groove, the guide rail is inserted into the sliding groove, the connector is also provided with a buckle A, and the guide rail is continuously provided with multiple slots along the length direction. The buckle A is engaged in the slots to fix the guide rail to the connector.

[0011] Furthermore, the lower part of the connector is provided with a latch B for engaging the connector with the slot.

[0012] The beneficial effects of this utility model are as follows:

[0013] By setting slots and connectors, the frame components can be quickly installed. At the same time, groove A is set on the guide rail shaft, groove B is set inside the annular frame, and an O-ring is set between the two to improve the stability when they are fixed. By rotating the frame components, the mating position of groove A and groove B is changed, and the flip angle of the mask is locked. The position of the installation on the guide rail can be adjusted as needed, which is convenient and quick. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the utility model.

[0016] Figure 2 This is a partial enlarged structural diagram.

[0017] Figure 3 This is a schematic diagram of the framework component structure.

[0018] Figure 4 This is a schematic diagram of a partial explosion structure.

[0019] Figure 5 Draw a sectional view to show the fit between groove A and groove B. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] like Figure 1-5As shown, a safety helmet face shield flip angle locking mechanism includes a safety helmet 10. Slots 101 are provided on both sides of the safety helmet 10. A connector 102 is inserted into the slot 101. A guide rail 1021 is movably connected to the connector 102. One end of the guide rail 1021 is connected to a frame assembly 20 through a rotating mechanism. A face shield 201 is fixed on the frame assembly 20.

[0022] Furthermore, the rotating mechanism includes an annular frame 202 and a guide shaft 1022. The guide shaft 1022 is inserted into the annular frame 202. A groove A10221 is provided on the guide shaft 1022 along the circumferential direction. A groove B2021 matching the shape of the groove A10221 is provided on the inner wall of the annular frame 202. When the guide shaft 1022 is inserted into the annular frame 202 and fixed, the groove A10221 and the groove B2021 are matched in position and an O-ring 2022 is provided between them.

[0023] Furthermore, the free end of the guide shaft 1022 is provided with a limiting boss 10222, and the annular frame 202 is provided with a limiting groove 2023 that cooperates with the limiting boss 10222. When the guide shaft 1022 is inserted into the annular frame 202 for fixation, the limiting boss 10222 is engaged with the limiting groove 2023.

[0024] Furthermore, the upper part of the connector 102 is provided with a sliding groove 1023, the guide rail 1021 is inserted into the sliding groove 1023, the connector 102 is also provided with a buckle A1024, and the guide rail 1021 is provided with a plurality of slots 10211 continuously along the length direction. The buckle A1024 is engaged in the slots 10211 to fix the guide rail 1021 to the connector 102.

[0025] Furthermore, the lower part of the connector 102 is provided with a buckle B1025 for engaging the connector 102 with the slot 101.

[0026] Specifically, in use, the lower part of the connector 102 is inserted into the slot 101 of the safety helmet, the buckle B1025 locks the slot 101, and then the guide rail 1021 is inserted into the upper groove 1023 of the connector 102. Adjust it to a suitable position. When flipping, the upper limit position of the flip screen 201 is when the frame component 20 interferes with the top of the safety helmet, and the lower limit position of the flip screen 201 is when the frame component 20 interferes with the edge of the safety helmet. In the middle part, when the peak of the groove A (10221) turns to the valley of the groove B (2021), the flip angle of the screen 201 is locked. If it is necessary to change the feel of the stop point, it can be achieved by adjusting the size, material and hardness of the O-ring 2022.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A helmet visor flipping angle locking mechanism, comprising a helmet (10), characterized in that, The safety helmet (10) has slots (101) on both sides, and a connector (102) is inserted into the slot (101). A guide rail (1021) is movably connected to the connector (102). One end of the guide rail (1021) is connected to a frame assembly (20) through a rotating mechanism. A face shield (201) is fixed on the frame assembly (20).

2. The helmet face shield flipping angle locking mechanism according to claim 1, characterized in that, The rotating mechanism includes an annular frame (202) and a guide shaft (1022). The guide shaft (1022) is inserted into the annular frame (202). The guide shaft (1022) is provided with a circumferential groove A (10221). The inner wall of the annular frame (202) is provided with a groove B (2021) that matches the shape of the groove A (10221). When the guide shaft (1022) is inserted into the annular frame (202) and fixed, the groove A (10221) and the groove B (2021) are matched in position and an O-ring (2022) is provided between them.

3. The safety helmet face shield flipping angle locking mechanism according to claim 2, characterized in that, The guide shaft (1022) is provided with a limiting boss (10222) at its free end. The annular frame (202) is provided with a limiting groove (2023) that cooperates with the limiting boss (10222). When the guide shaft (1022) is inserted into the annular frame (202) for fixation, the limiting boss (10222) is engaged with the limiting groove (2023).

4. The safety helmet face shield flipping angle locking mechanism according to claim 1, characterized in that, The upper part of the connector (102) is provided with a sliding groove (1023), the guide rail (1021) is inserted into the sliding groove (1023), the connector (102) is also provided with a buckle A (1024), the guide rail (1021) is provided with a plurality of slots (10211) continuously along the length direction, and the buckle A (1024) is engaged in the slot (10211) to fix the guide rail (1021) on the connector (102).

5. The helmet face shield flipping angle locking mechanism according to claim 1, characterized in that, The lower part of the connector (102) is provided with a buckle B (1025) for engaging the connector (102) with the slot (101).

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