CN2193053Y

CN2193053Y - Safety helmet with ventilation device

Info

Publication number: CN2193053Y
Application number: CN94214332U
Authority: CN
Inventors: 范国富
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-13
Filing date: 1994-06-13
Publication date: 1995-03-29
Anticipated expiration: 2004-06-13

Abstract

The utility model relates to a safety helmet with a ventilation device, which comprises a holding tank arranged at the back and near the bottom of the helmet body. The inside of the holding tank is provided with a blower fan actuated by direct current, and is provided with a close cover with grating holes for movably closing the holding tank. The inner lining of bubble cotton is provided with a plurality of assorted channels and a main channel for placing an air supply pipe. The lower end of the main pipe of the air supply pipe is arranged in a through hole communicated with the channels and is sheathed with the air outlet of a blower fan. Air flow is guided into or out of the air supply pipe by the sucking effect of the blower fan and enters from air holes in the branch tube of the air supply pipe to obtain the functions of radiating heat and providing comfortable air flow to a human body's head.

Description

Safety helmet with ventilation device

The utility model relates to a kind of safety cap with ventilation unit, particularly relates to a kind of suction effect and turnover of oxygen supply pipe air-guiding that utilizes air blast, can automatically provide comfort current to human body head, and can get rid of the safety cap of hot gas that head distributes.

As shown in Figure 1, place, the near forwardly top of safety cap 1 in the past is provided with one group of closable pore 11, adjacent bottom place, rear then is provided with a modulation hole 12, when locomotive is advanced, oncoming air-flow flows into can close pore 11 and enter in the safety cap 1, and reaches the effect of convection current by modulation hole 12, still, enter the air-flow of safety cap 1, only the effect that can have some to brush to the forehead place can not be uniformly scattered onto head everywhere, can not produce convection action with modulation hole 12, so 12 in hole of modulation has a little ventilation function, if when rainy, rainwater is splashed in the safety cap 1 from closing pore 11 easily, and the hair of getting wet, can close pore 11 if close, then air-flow just can't flow into, and the body heat of head can't be distributed, and sweat can not evaporate rapidly, and remain in a standstill in safety cap, make head feel vexed wet, uncomfortable.

Main purpose of the present utility model, aim to provide a kind of can be automatically and the head comfort current evenly is provided, and heat rejection function is arranged, the sultry safety cap of feeling of attaching the names of pre-determined candidates and being produced with elimination.

Safety cap of the present utility model, purport will comprise a safety cap body, foam liner, ventilative cloth, air supply pipe and an air blast, proceeds posterolateral adjacent bottom place establishes the holding tank that Open Side Down in the safety cap body, with a capping activity sealing holding tank, holding tank internal face place establishes a through hole and connects to the foam liner, then be provided with several grid hole in the capping, be installed with filter disc on the grid hole of capping; The safety cap body interior is provided with the foam liner, be concaved with a plurality of conduits between foam liner and safety cap body, conduit one end is communicated with a main channel front end, main channel is terminal to communicate with the through hole of holding tank, the contiguous end face of each conduit and main channel place forms a shrinkage part, and laying on the foam liner should ventilative cloth.Air supply pipe has one to be responsible for and a plurality of arm, cooperates each conduit and main channel shape and fills in the foam liner, and each arm and ventilative cloth adjacent surface are laid with a plurality of pores, and person in charge's end is provided with an opening and communicates with through hole.Air blast is to place in the holding tank, and with the direct current start, air blast is positioned at the holding tank through hole and is provided with an air outlet, so that gas is sucked or discharges and be responsible for.

From the above, characteristics of the present utility model are: utilize an air blast that is placed in rear in the safety cap, with air-flow by be placed into the foaming liner the air supply pipe uniformly dispersing to head, or the body heat that head produces discharged, with the feeling of oppression and heat that elimination is attached the names of pre-determined candidates and produced, make the head feeling cool comfortable.

Below by most preferred embodiment and accompanying drawing safety cap of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the stereogram of safety cap in the past.

Fig. 2 is the exploded perspective view of the utility model first preferred embodiment.

Fig. 3 is the part cutaway view of the utility model first preferred embodiment.

Fig. 4 is the use schematic diagram of the utility model first preferred embodiment.

Fig. 5 is another use schematic diagram of the utility model first preferred embodiment.

Fig. 6 is that the air supply pipe of the utility model second preferred embodiment launches schematic diagram.

See also shown in Fig. 2,3, safety cap of the present utility model mainly comprises: safety cap body 10, foam liner 20, ventilative cloth 30, an air supply pipe 40 and an air blast 50.

The adjacent bottom place is provided with a holding tank that Open Side Down 11 at safety cap body 10 rear, and seal holding tank 11 versatilely with a capping 12, holding tank 11 internal face places establish a through hole 111, capping 12 is provided with a plurality of grid hole 121 and a

rectangle opening

122, and 121 tops, grid hole of capping 12 are installed with filter disc 60.

Be equipped with foam liner 20 in safety cap body 10 inside, be concaved with a plurality of conduits (present embodiment is three

conduits

21,22,23) and main channel 24 on the foam liner 20, one end of

conduit

21,22,23 is provided with a runner 25 and connects with main channel 24 upper ends, main channel 24 lower ends communicate with the through hole 111 of holding tank 11, and the other end of

conduit

21,22,23 and main channel 24, runner 25 contiguous end face places form a shrinkage part 26 respectively.

Outside foam liner 20, lay ventilative cloth 30.

(present embodiment is with three arms 41 to have a plurality of arms, 42,43 is example) and one be responsible for 44 air supply pipe 40, be to cooperate

conduit

21,22,23 and main channel 24 shapes and filling in foam liner 20,

arm

41,42,43 with ventilative cloth 30 adjacent surfaces be laid with a plurality of pores 45, be responsible for 44 lower ends and be provided with an opening 441 that communicates with through hole 111,

arm

41,42, the 43rd, and be responsible for 44 in the same way,

arm

41,42,43 and be responsible for 44 and be provided with an isocon 46 and be responsible for 44 and connect, the caliber that is right against the arm 42 of being responsible for 44 upper ends and isocon 46 adjoiners is less than

other arms

41,43 with the caliber of isocon 46 adjoiners.

Be provided with one in the holding tank 11 and have air outlet 51 and air inlet 52 and with the air blast 50 of direct current start, air outlet 51 is through hole 111 places that are positioned at holding tank 11, and with opening 441 sockets of being responsible for 44 lower ends, the bottom surface of air blast 50 is provided with on the rectangle opening 122 that an on ﹠ off switch 53 convexedly stretches in capping 12, on ﹠ off switch 53 can be done syllogic control to air blast 50, be respectively close, three kinds of air draught and air drafts, air blast 50 is to install in the past, and its internal structure (as motor, flabellum etc.) is no longer described in detail.

Assembling of the present utility model, during 20 moulding of foam liner, form three

conduits

21,22,23, main channel 24 and runners 25, air supply pipe 40 is placed shrinkage part 26 belows, make person in charge's lower ending opening 441 of air supply pipe 40 penetrate through hole 111 and be socketed on the air outlet 51 of air blast 50, again capping 12 is covered holding tank 11, the on ﹠ off switch 53 of air blast 50 is protruded in perforate 122, just finish the assembling of the utility model first embodiment.

See also Fig. 4, after putting on a safety helmet, toggle switch key 53 can start the motor (not shown) of air blast 50, when at the air draught state, the body heat that head can be distributed and the sweat gas of evaporation are sucked in the air supply pipe 40 from the pore 45 of air supply pipe 40, air outlet 51 by air blast 50 enters air blast 50 again, discharges from air inlet 52 then, is discharged by the grid hole 121 of capping 12 at last.See also Fig. 5, when at the air draft state, can air-flow be entered the grid hole 121 process filter discs 60 of extraneous air-flow from air inlet 52, please cooperate and consult Fig. 3 from capping 12, enter by air outlet 51 among the person in charge 44 of air supply pipe 40, lead to each

arm

41,42,43 through isocon 46 again, flow out by pore 45 then, see through ventilative cloth 30 and brush head, make the people feel refrigerant comfortable, no longer include extremely hot, vexed wet sensation.

See also Fig. 6, the air supply pipe that is the utility model second preferred embodiment launches schematic diagram, there are a plurality of branched pipes 74 to be communicated with in addition with aforementioned different being in, make that to import the air-flow of (or sending) more even from being responsible for 75 in: 71,72,73 of each arms of air supply pipe 70.

Please continue to consult Fig. 6, with be responsible for 75 over against arm 72 and the caliber of isocon 76 adjoiners, caliber than

other arm

71,73 and isocon 76 adjoiners is little, the air-flow concentrations that can avoid being responsible for 75 guidings flows into from arm 72, and reaches the function (or evenly heat extraction) of uniform distribution air-flow to each

arm

71,72,73,74.

In addition, see also shown in Figure 3, air supply pipe 40 is to be positioned at shrinkage part 26 belows, so air-flow after pore 45 flows out, by the cushion space of shrinkage part 26 tops, the puzzlement that can avoid air-flow can't blow out for head hair stops, see also shown in Figure 4, be installed with filter disc 60 in the capping 12, can filter the air that enters holding tank 11 from grid hole 121 in advance, pump into the person in charge 44 by air blast 50 again.

Aforesaid air blast 50 also can be access to power supply on the locomotive car by lead, supply its motor power start, when considering to add strong wind, also can add and dress up two groups of above air blasts 50, and, can set air blast 50 and just stop action after running a period of times voluntarily, close and cause damage in order to avoid the user forgets.

Under the utility model what weather in office really, can both be automatically and supply with equably or discharge air-flow, reach the ventilation effect in the safety cap really, thoroughly eliminate the vexed wet sense that wears a safety helmet and produced.

Claims

1, a kind of safety cap with ventilation unit, safety cap body interior are provided with a foam liner and a ventilation unit, and are layed on the foam liner with the ventilative cloth of one deck, it is characterized in that:

Ventilation unit is at adjacent bottom place, safety cap body rear a holding tank that Open Side Down to be set, holding tank one end is provided with a capping of sealing holding tank versatilely, the holding tank internal face is provided with a through hole that penetrates into the foam liner, and capping is provided with a plurality of grid hole;

Be concaved with a plurality of conduits on the foam liner, an end of conduit and a main channel upper end are connected, and the main channel lower end corresponding with the upper end communicates with the through hole of holding tank;

In the foam liner, cooperate conduit and main channel shape to fill an air supply pipe, air supply pipe has one to be responsible for and a plurality of arm, the person in charge fills in main channel, arm fills in conduit, be laid with a plurality of pores on the face of arm and ventilative cloth adjacency, be responsible for the upper end and communicate, be provided with an opening that communicates with through hole with respect to the lower end of upper end with several arms;

Be provided with an air blast with the direct current start in holding tank, air blast is provided with an air outlet in the holding tank through hole.

2, the safety cap with ventilation unit as claimed in claim 1 is characterized in that: the contiguous end face of the conduit of foam liner and main channel place forms a shrinkage part.

3, the safety cap with ventilation unit as claimed in claim 1 is characterized in that: be installed with filter disc on the grid hole of capping.

4, the safety cap with ventilation unit as claimed in claim 1 is characterized in that: the branched pipe that is provided with a plurality of connections between each arm.

5, the safety cap with ventilation unit as claimed in claim 1 is characterized in that: arm is equidirectional with the person in charge, and is provided with an isocon that connects with the person in charge at each arm and between being responsible for.

6, the safety cap with ventilation unit as claimed in claim 5 is characterized in that: over against the caliber of the arm of being responsible for the upper end and the isocon adjoiner caliber less than other arm and isocon adjoiner.