CN203427741U

CN203427741U - Safety belt buckle

Info

Publication number: CN203427741U
Application number: CN201320544294.5U
Authority: CN
Inventors: 苑久润
Original assignee: TIANJIN YIZHONG VEHICLE SAFETY BELT FACTORY
Current assignee: TIANJIN YIZHONG VEHICLE SAFETY BELT FACTORY
Priority date: 2013-09-03
Filing date: 2013-09-03
Publication date: 2014-02-12
Anticipated expiration: 2023-09-03

Abstract

The utility model relates to a safety belt buckle, in particular to a safety belt buckle matched with an automobile safety belt retractor in application. The purpose of the utility model is to provide a safety belt buckle with the advantages of simple structure, low cost and high reliability. The safety belt buckle comprises an unlocking push block, a lock box iron core, a pop-up sliding block, a lock latch, a spring supporting hook, a lock-pulling jack and a spring, and further comprises a spring type normally-closed switch. The upper part of the lock box iron core is provided with the unlocking push block, the lock latch is arranged below the unlocking push block, and the lock latch is installed in an L-shaped groove processed on two side surfaces of the middle part of the lock box iron core. The upper part of the lock-pulling jack is arranged below the lock latch, the lower surface of the middle part of the lock-pulling jack is provided with the spring, and the lower end of the spring is installed at the lower part of the lock-pulling jack. The lower part of the lock-pulling jack is installed at the lower part of the unlocking push block. The pop-up sliding block is connected with the lower part of the lock-pulling jack, the spring type normally-closed switch is installed below one end of the pop-up sliding block, and the spring type normally-closed switch is used for controlling an unbuckling prompt indicating lamp.

Description

Belt buckle

Technical field

The utility model relates to vehicle safety belt system, particularly relate to a kind of for the matching used belt buckle of automobile safety belt retractor.

Background technology

Belt buckle is that car belt is used a very important structure in safety, and existing belt buckle lock is not to remind the connection mode of wire harness generally to adopt microswitch type.As shown in Figure 1, comprise spring 11, terminal 22 and shift knob 33.This kind of switch need to be by ejecting slide block side pressing spring 11, and by spring 11 pressure side 22, the power of terminal 22 passes to shift knob 33, and each presses shift knob 33, reaches the requirement of opening and closing.So just need to could opening and closing to the micro-switch application of force, and by spring conductance, exist the application of force to cause not the normally opening and closing of this switch, therefore can there is the demonstration problem of car body indicator lamp, Reusability reliability is not high for a long time.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of simple in structure, cost is low, reliability is high belt buckle.

The utility model belt buckle, comprises that the pushing block of unblanking, lock box iron core, ejection slide block, locking bolt, a spring hook, zip is very heavy and spring.Also comprise Reed type normally closed switch, described lock box iron core top is provided with the pushing block of unblanking, unblank described in locking bolt is positioned at pushing block below, described locking bolt is arranged in the L-type groove of processing on two sides, lock box iron core middle part, described spring hooks top and is positioned at locking bolt below, prop up spring hook middle part lower surface spring is installed, described spring lower end is arranged on the very heavy bottom of zip, the very heavy middle part of described zip is processed with the first rectangle frame, propping up spring hooks through described the first rectangle frame, the very heavy lower end of described zip is arranged on lock box mandrel lower and can rotates along installation shaft, lock box iron core rear surface is processed with the second rectangle frame, in the very heavy rotation process of zip, described the second rectangle frame can be stretched in the very heavy top of zip, eject slide block and adopt insulating material, described ejection slide block is positioned at the slideway bottom of lock box iron core rear portion processing and hooks bottom with a spring and is connected, described slideway inserts for safety strap plug, eject slide block two ends and stretch out lock box iron core outside, stretch out longer below, one end Reed type normally closed switch is installed, described Reed type normally closed switch is not prompting indicator lamp for controlling, described Reed type normally closed switch comprises two coarctate spring leafs, described Reed type normally closed switch is arranged on lock box mandrel lower side.

The utility model belt buckle, wherein said ejection slide block adopts Alignment Design, and lock box iron core is stretched out at its two ends, and the material of described ejection slide block is plastics.

The utility model belt buckle, it is outside that wherein said locking bolt two ends reach lock box iron core, described in the pushing block of unblanking above locking bolt two ends, be processed with groove in relevant position.

The utility model belt buckle difference from prior art is that the buckle lock of the utility model belt buckle is not that what remind that the connection mode of wire harness adopts is Reed type normally closed switch, the spring leaf of this design is comprised of upper and lower two spring leafs, under installing condition, upper and lower spring leaf is coarctate closure state, and the safety strap indicator lamp of car body is bright.When safety strap plug inserts buckle lock, two spring leafs are separated, and what safety strap was used is not to remind indicator lamp to go out.Chaufeur can judge whether the plug of safety strap pegs graft by indicator lamp and put in place.Spring leaf switch is simpler compared with traditional switch structure, and cost is lower.Normally closed design makes two spring leafs just have each other when mounted certain pressure, does not need ambient pressure closed, and Reusability reliability is higher.

Below in conjunction with accompanying drawing, the utility model belt buckle is described further.

Accompanying drawing explanation

Fig. 1 is micro-switch lateral plan;

Fig. 2 is the utility model belt buckle lockup state lateral plan;

Fig. 3 is the utility model belt buckle front view;

Fig. 4 is the utility model belt buckle medi-spring chip normally closed switch lateral plan.

The specific embodiment

As shown in Figures 2 and 3, the utility model belt buckle comprises the pushing block 1 of unblanking, lock box iron core 10, ejects slide block 4, locking bolt 2, a spring hook 3, zip is very heavy 5, spring 6 and Reed type normally closed switch 7.Lock box iron core 10 tops are provided with the pushing block 1 of unblanking, pushing block 1 below of unblanking described in locking bolt 2 is positioned at, locking bolt 2 is arranged in the L-type groove of processing on side, two, 10 middle part of lock box iron core, locking bolt 2 two ends reach lock box iron core 10 outsides, the pushing block 1 of unblanking is processed with groove in relevant position above locking bolt 2 two ends, promotes locking bolt 2 and move down while unblanking pushing block 1 for pressing.Unblank pushing block 1 and locking bolt 2 all can move up and down in lock box iron core 10.Spring hooks 3 tops and is positioned at locking bolt 2 belows, and a spring hooks the spring 6 that 3 middle part lower surfaces are provided with pressurized, and spring 6 lower ends are arranged on very heavy 5 bottoms of zip.Very heavy 5 middle parts of zip are processed with the first rectangle frame 9, and a spring hooks 3 through the first rectangle frame 9.Very heavy 5 lower ends of zip are arranged on lock box iron core 10 bottoms, and can rotate along installation shaft.Lock box iron core 10 rear surfaces are processed with the second rectangle frame 12, and in very heavy 5 rotation processes of zip, described the second rectangle frame 12 can be stretched in very heavy 5 tops of zip.Eject slide block 4 and adopt Alignment Design, material therefor is plastics, and ejection slide block 4 is positioned at slideway 14 bottoms of lock box iron core 10 rear portions processing and hooks 3 bottoms with a spring and is connected.Slideway 14 inserts for safety strap plug 13.Eject slide block 4 two ends and stretch out lock box iron core 10 outsides.As shown in Figure 4, ejection slide block 4 stretches out the longer below, one end of lock box iron core 10 Reed type normally closed switch 7 is installed, Reed type normally closed switch is not prompting indicator lamp for controlling, Reed type normally closed switch 7 comprises two coarctate spring leafs 8, and Reed type normally closed switch 7 is arranged on lock box iron core 10.

The utility model belt buckle principle of work is as follows: during normal mounting, upper and lower spring leaf 8 force togethers, in closure state, wire harness be connected to path, the safety strap indicator lamp of car body is bright, locking bolt 2 is positioned at the bottom comer of L-type groove.When safety strap plug 13 inserts belt buckle, the bottom of plug 13 is ejecting slide block 4 to pressing down, the bottom of ejecting slide block 4 and a spring hook 3 together moves down, prop up the top of spring hook 3 and asking locking bolt 2 to move to top from the bottom comer of L-type groove, very heavy 5 tops of zip buckle in the groove 14 of safety strap plug 13 bottoms.Ejection slide block 4 stretches out the longer one end of lock box iron core 10 and is pulled in the middle of two plate spring sheets 8, makes two spring leaf 8 separation, and being connected to of wire harness opened circuit, and what safety strap was used is not to remind indicator lamp to go out.When needs are opened safety strap, with hand, press the pushing block 1 of unblanking and move downward, the pushing block 1 extruding locking bolt 2 of unblanking, locking bolt 2 stressed rear under move to the bottom comer of L-type groove, locking bolt 2 moves down simultaneously an extruding spring and hooks 3 and a spring 6, a spring hooks 3 tops and moves down.Under the effect of spring 6, a spring hooks 3 bottoms and moves up together with ejecting slide block 4, and zip very heavy 5 swings laterally simultaneously, safety strap plug 13 and its upper end are thrown off, the final slide block 4 that ejects is released belt buckle by the plug of safety strap 13, completes release, and two spring leafs 8 are again closed.

Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.

Claims

1. a belt buckle, comprise the pushing block of unblanking, lock box iron core, eject slide block, locking bolt, propping up spring hooks, very heavy and the spring of zip, it is characterized in that: also comprise Reed type normally closed switch, described lock box iron core top is provided with the pushing block of unblanking, unblank described in locking bolt is positioned at pushing block below, described locking bolt is arranged in the L-type groove of processing on two sides, lock box iron core middle part, described spring hooks top and is positioned at locking bolt below, prop up spring hook middle part lower surface spring is installed, described spring lower end is arranged on the very heavy bottom of zip, the very heavy middle part of described zip is processed with the first rectangle frame, propping up spring hooks through described the first rectangle frame, the very heavy lower end of described zip is arranged on lock box mandrel lower and can rotates along installation shaft, lock box iron core rear surface is processed with the second rectangle frame, in the very heavy rotation process of zip, described the second rectangle frame can be stretched in the very heavy top of zip, eject slide block and adopt insulating material, described ejection slide block is positioned at the slideway bottom of lock box iron core rear portion processing and hooks bottom with a spring and is connected, described slideway inserts for safety strap plug, eject slide block two ends and stretch out lock box iron core outside, stretch out longer below, one end Reed type normally closed switch is installed, described Reed type normally closed switch is not prompting indicator lamp for controlling, described Reed type normally closed switch comprises two coarctate spring leafs, described Reed type normally closed switch is arranged on lock box mandrel lower side.

2. belt buckle according to claim 1, is characterized in that: described ejection slide block adopts Alignment Design, and lock box iron core is stretched out at its two ends, and the material of described ejection slide block is plastics.

3. belt buckle according to claim 1, is characterized in that: it is outside that described locking bolt two ends reach lock box iron core, described in the pushing block of unblanking above locking bolt two ends, be processed with groove in relevant position.