Safety helmet with fan

Abstract

The utility model discloses a safety helmet with a fan, which comprises a helmet body, a fixed frame is fixedly arranged in the front end of the helmet body, a fan body is fixedly arranged in the fixed frame, fan blades are arranged at the output end of the fan body, a lining is arranged in the helmet body, and a replacement structure is arranged between the lining and the helmet body. The replacing structure comprises transverse plates fixedly arranged on the two sides of the front end and the rear end of the lining, fixing plates are installed at the upper ends of the transverse plates and fixedly connected with the inner wall of the cap body, limiting rods are fixedly installed at the lower ends of the fixing plates, the outer walls of the limiting rods are sleeved with buffer springs, and the lower ends of the limiting rods penetrate through the transverse plates and are provided with nuts in a threaded mode. According to the safety helmet with the fan, the lining can be replaced or cleaned in the later period, and cleanliness of the interior of the helmet body is better guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of safety helmets, in particular to a safety helmet with a fan. Background Art

[0002] A hard hat is a piece of safety equipment that protects the head and is widely used in construction sites, industrial sites, and other work environments that require head protection. The outer part of the hard hat is usually made of hard materials such as polycarbonate, ABS, or fiberglass. The shell provides protection against external impacts and objects. The inner part of the shell is usually made of foam material to absorb impact and reduce the impact on the head.

[0003] Existing hard hats are generally equipped with a rechargeable fan to reduce the temperature of workers when wearing them. At the same time, the sponge lining inside the helmet is usually fixed to the inner wall of the helmet. When construction workers wear it for a long time, it will adhere to a lot of sweat and dust from the construction site, and it is impossible to replace it when cleaning is needed. Utility Model Content

[0004] The main purpose of the utility model is to provide a safety helmet with a fan, which can effectively solve the technical problem in the background technology that the sponge lining in the helmet body is usually fixedly connected to the inner wall of the safety helmet. When construction workers wear it for a long time, it will adhere to a lot of sweat and dust from the construction site, and it cannot be replaced when cleaning is needed.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A safety helmet with a fan comprises a cap body, a fixing frame fixedly installed inside the front end of the cap body, a fan body fixedly arranged inside the fixing frame, fan blades installed at the output end of the fan body, an inner lining provided inside the cap body, a replacement structure installed between the inner lining and the cap body, the replacement structure comprising horizontal plates fixedly arranged on both sides of the front and rear ends of the lining, a fixing plate installed at the upper end of the horizontal plate, the fixing plate fixedly connected to the inner wall of the cap body, a limiting rod fixedly installed at the lower end of the fixing plate, a buffer spring sleeved on the outer wall of the limiting rod, the lower end of the limiting rod passes through the interior of the horizontal plate and a nut is threadedly installed on the lower end.

[0007] As a further solution of the present invention, a threaded tube is fixedly installed at the front end of the fixing frame, and a shielding cover is threadedly provided on the outer wall of the threaded tube.

[0008] As a further solution of the present invention, a split structure is installed between the fixed frame and the fan body, and the split structure includes rectangular plates fixedly arranged on both sides of the rear end of the fan body, and connecting plates are fixedly arranged on the inner walls on both sides of the fixed frame at the front end of the rectangular plate. Arc grooves are opened inside the two connecting plates, and the openings of the two groups of arc grooves are in opposite directions. A screw is installed at the front end of the rectangular plate, and the front end of the screw passes through the arc groove and a nut is provided on the outer wall.

[0009] As a further solution of the present invention, a plurality of ventilation slots are provided inside the lining.

[0010] As a further solution of the present invention, straps are fixedly installed on both sides of the lower end of the cap body.

[0011] As a further solution of the present invention, an exhaust groove is provided at the rear end of the cap body.

[0012] As a further solution of the present invention, the upper end of the buffer spring is fixedly connected to the lower end surface of the fixed plate, and the lower end surface of the buffer spring is in contact with the upper end surface of the horizontal plate.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting up a replacement structure, when the liner with a buffer structure needs to be removed for cleaning, the nut is unscrewed from the lower end of the limit rod, and the liner is taken out from the lower end of the cap body for cleaning or replacement, thereby ensuring the cleanliness of the inside of the cap body. In addition, the installed liner can better protect the user's head through the buffer spring;

[0015] By setting up a split structure, when the installer or user needs to dismantle the fan body or clean the dust adhered to the fan blades, they remove the nut, hold the fan body tightly and rotate it, turn the rectangular plate out from the rear end of the connecting plate, and pull it forward to achieve quick splitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a safety helmet with a fan in the utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a helmet body with a fan according to the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of a fixing frame of a safety helmet with a fan according to the present invention;

[0019] Figure 4 This utility model is a helmet with a fan Figure 3 A magnified structural diagram at point A in the middle.

[0020] Figure 5This is a diagram showing the lower end structure of the lining of a safety helmet with a fan according to the present invention.

[0021] Figure 6 This utility model is a helmet with a fan Figure 5 The enlarged structure of point B in the middle is shown.

[0022] Figure 7 This is a cross-sectional structural diagram of the inner lining of a safety helmet with a fan according to the present invention.

[0023] In the figure: 1. Cap body; 2. Fixing frame; 201. Fan body; 3. Lining; 4. Replacement structure; 5. Horizontal plate; 6. Fixing plate; 7. Limit rod; 8. Buffer spring; 9. Nut; 10. Ventilation slot; 11. Exhaust slot; 12. Split structure; 13. Rectangular plate; 14. Connecting plate; 15. Screw; 16. Nut; 17. Threaded pipe; 18. Shielding cover; 19. Binding strap. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-7 As shown, a safety helmet with a fan includes a cap body 1, a fixing frame 2 is fixedly installed inside the front end of the cap body 1, a fan body 201 is fixedly set inside the fixing frame 2, and fan blades are installed at the output end of the fan body 201. A lining 3 is provided inside the cap body 1, and a replacement structure 4 is installed between the lining 3 and the cap body 1. The replacement structure 4 includes a horizontal plate 5 fixedly arranged on both sides of the front and rear ends of the lining 3, a fixing plate 6 is installed at the upper end of the horizontal plate 5, the fixing plate 6 is fixedly connected to the inner wall of the cap body 1, and a limiting rod 7 is fixedly installed at the lower end of the fixing plate 6. A buffer spring 8 is provided on the outer wall of the limiting rod 7, and the lower end of the limiting rod 7 passes through the interior of the horizontal plate 5 and a nut 9 is threadedly installed on the lower end.

[0026] In this embodiment, a threaded tube 17 is fixedly mounted on the front end of the fixing frame 2 , and a shielding cover 18 is threadedly provided on the outer wall of the threaded tube 17 .

[0027] The threaded tube 17 is used to match the threaded installation of the shielding cover 18, and the shielding cover 18 shields the incoming air at the front end.

[0028] In this embodiment, a split structure 12 is installed between the fixed frame 2 and the fan body 201. The split structure 12 includes a rectangular plate 13 fixedly arranged on both sides of the rear end of the fan body 201, and connecting plates 14 are fixedly arranged on the inner walls of both sides of the fixed frame 2 at the front end of the rectangular plate 13. Arc grooves are opened inside the two connecting plates 14, and the openings of the two groups of arc grooves are in opposite directions. A screw 15 is installed at the front end of the rectangular plate 13. The front end of the screw 15 passes through the arc groove and a nut 16 is provided on the outer wall.

[0029] The rectangular plate 13 is used to install the screw 15. The screw 15 enters the arc groove to realize the clamping connection between the rectangular plate 13 and the connecting plate 14. The nut 16 is tightened on the outer wall of the screw 15 to quickly and manually fix the fan body 201, speeding up the installation. At the same time, it can reduce the difficulty of operation when disassembling in the later stage.

[0030] In this embodiment, a plurality of ventilation slots 10 are provided inside the inner lining 3 .

[0031] The ventilation slots 10 direct the wind source from the upper end of the liner 3 to the upper end of the user's head.

[0032] In this embodiment, binding straps 19 are fixedly mounted on both sides of the lower end of the cap body 1 .

[0033] The strap 19 is used to fix the cap body 1 on the user's head.

[0034] In this embodiment, an exhaust slot 11 is formed at the rear end of the cap body 1 .

[0035] The exhaust groove 11 is used to accelerate the flow of gas between the cap body 1 and the liner 3 .

[0036] In this embodiment, the upper end of the buffer spring 8 is fixedly connected to the lower end surface of the fixed plate 6 , and the lower end surface of the buffer spring 8 is in contact with the upper end surface of the transverse plate 5 .

[0037] The upper end of the buffer spring 8 is fixedly connected to the lower end surface of the fixing plate 6 so that the buffer spring 8 will not fall off after the lining 3 is removed.

[0038] It should be noted that the present invention is a safety helmet with a fan. After wearing the cap body 1, the upper end of the user's head contacts the inner lining 3. When a heavy object falls on the upper end of the cap body 1, the impact is cushioned by the buffer spring 8, which better protects the user's head. The fan body 201 is started, and the wind source partially enters the upper end of the inner lining 3 and cools the user's head through the multiple ventilation slots 10.

[0039] When the liner 3 needs to be removed, the nut 9 is rotated to remove the nut 9 from the lower end of the limiting rod 7, and the liner 3 is moved downward to be disassembled, cleaned, or replaced;

[0040] When the fan body 201 needs to be disassembled, rotate the shielding cover 18 to remove the shielding cover 18, rotate the nut 16 to remove the nut 16 from the outer wall of the screw 15, and after removing it, rotate the fan body 201 to turn the screw 15 out from the inside of the arc groove. After turning it out, pull the fan body 201 to achieve the disassembly of the fan body 201.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A safety helmet with a fan, comprising a helmet body (1), a fixing frame (2) fixedly mounted inside the front end of the helmet body (1), a fan body (201) fixedly mounted inside the fixing frame (2), a fan blade mounted on the output end of the fan body (201), an inner lining (3) disposed inside the helmet body (1), characterized in that: A replacement structure (4) is installed between the lining (3) and the cap body (1), and the replacement structure (4) includes a transverse plate (5) fixedly arranged on both sides of the front and rear ends of the lining (3), a fixing plate (6) is installed at the upper end of the transverse plate (5), the fixing plate (6) is fixedly connected to the inner wall of the cap body (1), and a limiting rod (7) is fixedly installed at the lower end of the fixing plate (6), and a buffer spring (8) is provided on the outer wall of the limiting rod (7). The lower end of the limiting rod (7) passes through the interior of the transverse plate (5) and a nut (9) is threadedly installed at the lower end.

2. The helmet with a fan according to claim 1, characterized in that: A threaded tube (17) is fixedly mounted on the front end of the fixed frame (2), and a shielding cover (18) is provided on the outer wall of the threaded tube (17) in a threaded manner.

3. The helmet with a fan according to claim 2, characterized in that: A split structure (12) is installed between the fixed frame (2) and the fan body (201), and the split structure (12) includes rectangular plates (13) fixedly installed on both sides of the rear end of the fan body (201), and connecting plates (14) are fixedly installed on the inner walls of both sides of the fixed frame (2) at the front end of the rectangular plate (13), and arc grooves are opened inside the two connecting plates (14), and the two groups of arc grooves are opened in opposite directions. A screw rod (15) is installed at the front end of the rectangular plate (13), and the front end of the screw rod (15) passes through the arc groove and a nut (16) is provided on the outer wall.

4. The safety helmet with a fan according to claim 3, characterized in that: A plurality of ventilation slots (10) are provided inside the inner lining (3).

5. The safety helmet with a fan according to claim 1, characterized in that: Binding straps (19) are fixedly mounted on both sides of the lower end of the cap body (1).

6. The safety helmet with a fan according to claim 1, characterized in that: An exhaust groove (11) is provided at the rear end of the cap body (1).

7. The safety helmet with a fan according to claim 1, characterized in that: The upper end of the buffer spring (8) is fixedly connected to the lower end surface of the fixed plate (6), and the lower end surface of the buffer spring (8) is in contact with the upper end surface of the transverse plate (5).

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