CN2478390Y - Seat for mounting protective cover of helmet - Google Patents

Abstract

The utility model discloses a headpiece shield soleplate, which is connected between a headpiece and a transparent mask. A flat shaped base plate is provided with an adjusting elastic seat, which is matched with mask racks, and a ream, which is fitted with a mask dead shaft. A snap ring shaped shaft seat is arranged on the external circumference of the ream, and an arresting device is positioned on the base plate by a pilot positioning groove. A clasp, which is movably buckled with the snap ring shaped shaft seat, is positioned at the hollow annular upper part of the arresting device. Clipping teeth, which is complemented with gaps of the snap ring shaped shaft seat, are arranged on the clasp. By using the conformation, the locking mechanism of the mask dead shaft is greatly simplified and the components are decreased.

Description

A kind of helmet guard shield mount pad

The utility model relates to the structure that the helmet is connected with the transparent face mask assembling.

Traditional helmet is connected with transparent face mask with simple axis hole articulated structure, and hinge and guard shield, the helmet all are movably hinged, and the hinge end is spacing by nut, such assembly structure is simpler, but because vibration is frequent, and stop nut very easily gets loose, cause face shield to lose efficacy in the use.On the other hand, the mechanism that regulates the guard shield subtended angle generally is located at guard shield rear portion hinge side, and what have directly is processed into profile of tooth by fraising and cooperates with profile of tooth on the securing member and regulate subtended angle, because stress is concentrated, profile of tooth is worn and torn easily, dislocation or latch, make the guard shield subtended angle regulate inconvenient, service life is short.Chinese patent application number: 00209130.5 once improved at the problems referred to above, but owing to need to adopt and go up lock hook, tiny members such as lock hook, spring, spring groove down, cooperated between each member and easily go wrong, and manipulated trouble.On the basis of Chinese patent 00209130.5, Chinese patent 00245461.0 is more further with designs simplification, adopts the locking key structure, but still exist locking not too firmly, the possibility of deviating to unclamp is arranged, the elastic force defect of insufficient, practical effect is not ideal.

The purpose of this utility model is the weak point that overcomes prior art, provide a kind of simple in structure, member is few, charge and discharge operations is convenient and simple, the helmet guard shield mount pad of firm and reliable connection.

The purpose of this utility model is achieved by the following technical solution: a kind of helmet guard shield mount pad, be connected between the helmet and the transparent face mask, its seat board is flat, seat board is provided with the adjusting bullet seat that cooperates with the face shield tooth bar, is provided with the fraising that cooperates with the face shield dead axle, the excircle of fraising is provided with the open annular axle bed, locking key is loaded on the seat board by the guide-localization groove, locking key top is hollow ring and is set with a snap ring, snap ring and open annular axle bed form active buckle and cooperate, snap ring be provided with can with the latch of the breach complementation of open annular axle bed.Further, the hollow ring both sides, top of locking key are provided with lug, and lug is clasped with the Button Block of being located at open annular axle bed side, but the locking key bottom is provided with the handgrip of push-and-pull locking key.

Below in conjunction with drawings and Examples structure of the present utility model and advantage are further described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the partition assembling schematic diagram of Fig. 1;

Fig. 3 is the schematic diagram with face shield assembly process;

Fig. 4 is the schematic diagram good with the face shield assembly.

Referring to Fig. 1-Fig. 4, the seat board 1 of present embodiment is flat, have fraising 2 on it with transparent face mask 5 assemblings, the installing hole that is connected with the helmet, on the excircle of fraising 2, be formed with open annular axle bed 4, the below of open annular axle bed 4 has guide-localization groove 6, locking key 7 is loaded on the seat board 1 by guide-localization groove 6, and the top of locking key 7 is hollow ring, be set with a snap ring 3 on this hollow ring 71, snap ring 3 forms to slide up and down with open annular axle bed 4 together with locking key 7 and is fastened, be provided with " crescent " latch 31 in snap ring 3 upper, annular, latch 31 just in time with open annular axle bed 4 on breach form complementary snapping; Meanwhile, hollow ring 71 both sides of locking key 7 are provided with lug 72, and lug 72 is clasped with the Button Block 8 of being located at open annular axle bed 4 sides.Like this, behind the lug 72 and Button Block 8 snappings of hollow ring 71, locking key 7 just can be locked in snap ring 3 on the open annular axle bed 4.But the bottom of locking key 7 is provided with the handgrip 9 of push-and-pull.In addition, also be provided with the adjusting bullet seat 10 that is used to adjust face shield 5 opening angles on the seat board 1.

Assembling process is such: upwards promote locking key 7, the breach of open annular axle bed 4 is opened, its width is enough to allow the dead axle 51 on the face shield 5 import, catch the top of face shield 5, with dead axle 51 along the breach of open annular axle bed 4 push open annular axle bed 4 and with fraising 2 centerings (as shown in Figure 3), after face shield dead axle 51 is inserted in fully, along handgrip 9 pulling locking key 7 downwards, the breach of " crescent " latch 31 and open annular axle bed 4 on the snap ring 3 is fastened, on the other hand, make the lug 72 and Button Block 8 corresponding snappings in locking key 7 outsides, like this face shield dead axle 51 is locked in the axle bed to form and is rotatably assorted.At last, make tooth bar 52 and the 10 corresponding engagements of adjusting bullet seat on the face shield 5, finish assembling (as shown in Figure 4).As dismantling, instead its order and direction action get final product.

In sum, the utility model has the advantages that:

1, employing snap ring and the such composition member of locking key just can be realized the lock to the face shield dead axle Fixed, the operation folding is all very simple, easy;

2, the resilient beam of locking key, solid and reliable to the locking of face shield dead axle, be difficult for getting loose, Stress is concentrated little, long service life;

3, designs simplification, tiny connector significantly reduce, and assembling is simple, functional reliability is high.

Claims (2)

1, a kind of helmet guard shield mount pad, be connected between the helmet and the transparent face mask, its seat board is flat, seat board is provided with the adjusting bullet seat that cooperates with the face shield tooth bar, is provided with the fraising that cooperates with the face shield dead axle, the excircle of fraising is provided with the open annular axle bed, locking key is loaded on the seat board by the guide-localization groove, it is characterized in that: locking key top is hollow ring and is set with a snap ring, snap ring and open annular axle bed form active buckle and cooperate, snap ring be provided with can with the latch of the breach complementation of open annular axle bed.

2, mount pad according to claim 1 is characterized in that the hollow ring both sides, top of locking key are provided with lug, and lug is clasped with the Button Block of being located at open annular axle bed side, but the locking key bottom is provided with the handgrip of push-and-pull locking key.

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