CN1201687C

CN1201687C - Safety belt buckle

Info

Publication number: CN1201687C
Application number: CN 02136319
Authority: CN
Inventors: 吴耀凌; 朱跃钢
Original assignee: JUNSHENG PLASTIC CHILDRENS ARTICLE CO Ltd NINGBO
Current assignee: Max Inf Ningbo Baby Product Co Ltd
Priority date: 2002-07-30
Filing date: 2002-07-30
Publication date: 2005-05-18
Anticipated expiration: 2022-07-30
Also published as: CN1391858A

Abstract

The present invention relates to a safety belt buckle which is improved on an outer shell, a bottom plate, a plug and a button of an original structure, namely that a left and a right grooves which are communicated with an inserting cavity are symmetrically arranged on the upper end face of the bottom plate between the guide groove and an inserting cavity mouth. The left and the right grooves are respectively provided with a left and a right locking blocks and a compression spring which is positioned between the walls of the grooves; a left and a right pins are symmetrically arranged on the plug, and both spliced sides are symmetrically provided with bayonets which are matched with the left and the right locking blocks; sloped edges which contact the left and the right locking blocks and push the left and the right locking blocks to move inwards and outwards are symmetrically arranged on the inner surface of the button. After the structure is used, both sides of each pin are ensured to be simultaneously stressed, so that the integral stress of the plug is uniform, and thus, the safe and reliable use of a sitting person is ensured; in addition, a left and a right lug bosses are symmetrically arranged on the end faces of the left and the right locking blocks, and an inclination angle of the sloped edge of the inner surface of the button is reduced, so that resistance is reduced when the button is pushed, and thus, the present invention is convenient for the sitting person to use and operate.

Description

Safety belt buckle

Technical field

The present invention relates to a kind of safety belt buckle, especially refer to a kind of safety belt buckle that is installed on the automotive seat.

Background technology

In order to ensure the safety of taking advantage of a person, generally on the seat of automobile, be provided with safety belt, with the impact that prevents that automobile from slowing down suddenly or cause when meeting accident accident and will take advantage of a person to toss out of the window, when taking advantage of a person to use of seat belts, be oneself tiing up on the seat by buckle, therefore the quality of buckle quality is directly connected to the safety of taking advantage of a person, and existing commercially available a kind of safety belt buckle, it comprises shell, the band that is positioned at shell is laterally inserted the base plate in cave, can insert base plate inserts the plug in cave and is positioned at the button that the base plate top also partly is exposed to shell, described shell is formed by taking off the loam cake and the lower cover that close mutually, on the base plate face, be provided with the guide groove that communicates with slotting cave, accommodate slide block and the spring between slide block and guide groove wall in the described guide groove; The groove that a side setting on the base plate upper surface between described guide groove and the slotting cave mouth communicates with slotting cave is equipped with lock dog and the spring between lock dog and groove walls respectively in the described groove; The left and right plug of the with holes and pin of safety belt is spliced described plug by being respectively equipped with fixedly, therein a pin be provided with the base plate upper surface on the bayonet socket that is interlockingly connected of a side chain piece; A side is provided with the hypotenuse that touches and can promote lock dog with above-mentioned lock dog mutually on the described button inner surface.In use, insert in the slotting cave of base plate left and right plug splicing back, pressed slider spring and lock dog spring, and under the effect of lock dog spring, lock dog fastens the pin bayonet socket simultaneously, makes pin not extract and is in locking-in state; For plug is thrown off from insert the cave, as long as promote button, make the hypotenuse extruding lock dog of button, compress the lock dog spring, lock dog moves outward as a result, leaves the bayonet socket on the pin, and under the effect of sliding block spring restoring force, pin breaks away from inserts the cave.But when reality is used, because the one-sided setting of lock dog on the base plate face, the bayonet socket and the also one-sided setting of the hypotenuse on the button of the feasible pin that matches with it, thereby pin only depends on the bayonet socket on the pin to be subjected to the lock dog clamping, thereby makes pin monolateral stressed when insert inserting the cave, cause left and right pin unbalance stress, therefore the safety belt that might make the stressed more weak side of pin, still exists potential safety hazard not promoting to break away from slotting cave under the situation of button; In addition, the lock dog front end directly touches mutually with the button hypotenuse, make that the inclination angle of button hypotenuse is bigger, when needs discharge pin, need with the bigger moving button of trying hard to recommend, sometimes even the lock dog self-locking, appearance can't discharge the phenomenon of pin, therefore, it is very inconvenient to take advantage of a person to use, and makes product lose market competitive power.

Summary of the invention

Technical problem to be solved by this invention is the defective at prior art, provides a kind of left and right plug stressed evenly, safety belt buckle safe in utilization, reliable.

Another technical problem to be solved by this invention is to overcome above-mentioned defective, and a kind of safety belt buckle that is easy to use, discharge freely is provided.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: this safety belt buckle comprises:

One shell is formed by taking off the loam cake and the lower cover that close mutually, and is provided with window at loam cake and the lower cover place of closing up and with respect to the breach of window end;

One base plate, be positioned at shell and be provided with horizontal slotting cave, should insert the cave mouth is contained in the above-mentioned window, be provided with the with holes of extended above-mentioned breach with mouth opposite end, slotting cave on the described base plate, on the base plate upper surface, be provided with the guide groove that communicates with slotting cave, accommodate slide block and the compression spring between slide block and guide groove wall in the described guide groove;

One button be positioned at the base plate top, and part is exposed to outside the shell;

One plug is spliced by left and right plug, is respectively equipped with the with holes of fixing safety belt on the described left and right plug and can inserts the pin in above-mentioned slotting cave;

It is characterized in that:

Be symmetrical arranged the left and right groove that communicates with slotting cave on the base plate upper surface between described guide groove and the slotting cave mouth, be equipped with left and right lock dog and the compression spring between lock dog and groove walls in the described left and right groove respectively;

Described left and right pin is symmetricly set on the plug, and is provided with the bayonet socket that matches with above-mentioned left and right lock dog in spliced bilateral symmetry;

Be arranged with the hypotenuse that touches mutually and can promote to move inside and outside the left and right lock dog with above-mentioned left and right lock dog on the described button inner surface.

Can be arranged with front end left and right boss curved and that match with the button hypotenuse on the described left and right lock dog end face, promote button, make the left and right hypotenuse of button promote left and right boss, left and right lock dog is inside and outside to be moved thereby drive.

Described button can offset by spring and loam cake, and is provided with directing shoulder and guide wall in the cooperation place of the two, make button relatively loam cake slide.

Described directing shoulder can be positioned at the both sides of button, and described guide wall can be positioned on the inner surface of loam cake.

Described guide groove is good to be T-shape.

Compared with prior art, the invention has the advantages that: owing to be arranged with lock dog and compression spring on the base plate upper surface, and be provided with the symmetrical bayonet socket that matches with it and the hypotenuse of symmetry at the inner surface of corresponding plug base pin, button, thereby the pin both sides that can guarantee plug are simultaneously stressed, make plug whole stressed evenly, guaranteed to take advantage of that a person's is safe in utilization, reliable; Moreover, on the end face of left and right lock dog, be arranged with front end left and right boss curved and that match with the button inclined-plane, make the position of boss move outward with respect to lock dog, thereby the hypotenuse inclination angle of button inner surface is reduced, resistance reduces when promoting button, can make to take advantage of a person (adult) to be easy to use, operate.In addition, button is fixed on and covers, and makes easy to manufacture, easy to assembly.

Description of drawings

Fig. 1 is an embodiment of the invention perspective exploded view;

Fig. 2 is present embodiment buckle of safety belt release conditions schematic diagrames (broken section);

Fig. 3 is the schematic diagram after the left and right plug amalgamation in the present embodiment;

The back of the body of Fig. 4 after for button in the present embodiment and loam cake assembling looked schematic diagram.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

As shown in Figures 1 to 4, base plate 3, plug 4 and button 2 that present embodiment comprises shell 1, makes of Zinc material, described shell 1 is made up of loam cake 11 and lower cover 12, four snapping posts 111 of the inner surface by being positioned at loam cake 11 between the two and four snappings nails 121 that are positioned at lower cover 12 inner surfaces are fastened and connected, also can be with the screw mode the two fastening one; On loam cake 11 inner surfaces, be provided with stop tab 113 between the snapping post 111 of each side, compress base plate 3 when fastening in order to upper and lower cover; On loam cake 11, be provided with the installing hole 112 that button 2 is installed, on the inner surface of loam cake 11, also be provided with locating slot 115 and be the guide wall 114 that the center is symmetrical arranged, is parallel to each other, play the guiding role when on loam cake 11, sliding in order to button 3 with locating slot 115; Also be provided with four hollow circuit cylinders 122 of bearing plate 3 on lower cover 12 inner surfaces, and be provided with window A at loam cake 11 and lower cover 12 places of closing up and with respect to the breach B of window A end.

Base plate 3 is positioned at shell 1, promptly between upper and lower cover, be provided with horizontal slotting cave in this base plate 3, insert cave mouth 34 and be arranged in the window A that upper and lower cover closes up the place, to be provided with the flat of extended above-mentioned breach B with holes 31 with mouth 34 opposite ends, slotting cave on the base plate 3, and be provided with the T-shape guide groove 32 that communicates with slotting cave on base plate 3 upper surfaces, accommodates slide block 6 and compression spring 7 in the described guide groove 32, these compression spring 7 one ends are arranged in the positioning round orifice of slide block 6, and the other end and guide groove 32 walls offset; On the base plate upper surface between guide groove 32 and the slotting cave mouth 34, also be symmetrical arranged the left and right groove 33,33 that communicates with slotting cave ', described left and right groove 33,33 ' interior be equipped with respectively left and right lock dog 9,9 ' and left and right compression spring 8,8 ', left and right compression spring 8,8 ' one ends be arranged in left and right lock dog 9,9 ' locating hole, the other end and left and right groove 33,33 ' inwall offset; Also be arranged with on described left and right lock dog 9, the 9 ' upper surface the curved left and right boss of front end 91,91 '; The lower surface of base plate 3 be provided with four with lower cover 12 hollow circuit cylinders 122 projection of inserting mutually, make base plate 3 be positioned on the lower cover 12.

Button 2 is positioned at base plate 3 tops and part is exposed to outside the loam cake 11, its can inserting on base plate 3, but in the present embodiment, as shown in Figure 4, button 2 is to offset by the locating slot 115 in spring 5 and loam cake 11 inner surfaces, the both sides of button 2 are provided with directing shoulder 21, this directing shoulder 21 cooperates with guide wall 114 in the above-mentioned loam cake 11, after enforcing button 2, make button 2 also to be arranged with and an above-mentioned left side on described button 2 inner surfaces relative to the trend that loam cake 11 slides and prevention button 2 moves outside loam cake 11, right lock dog 9,9 ' on a left side, right boss 91,91 ' mutually touch and can promote a left side, right lock dog 9,9 ' inside and outside mobile hypotenuse 22,22 '.

Plug 4 is spliced by the left and right plug 41,42 that respectively is provided with flat with holes 411,421 and is " ear " shape, left and right pin 412,422 is symmetricly set on the left and right plug 41,42, and be provided with and can insert base plate 3 after bayonet socket 413,423, two pins of above-mentioned left and right lock dog 9,9 ' match are merged and insert in the caves in spliced bilateral symmetry.

During installation, earlier slide block 6 is placed T-shape guide groove 32 front ends of base plate 3, compression spring 7 one ends are inserted in the positioning round orifice of slide block 6, the other end is pressed on corresponding guide groove 32 inwalls; With the left and right lock dog 9,9 of left and right compression spring 8,8 ' insertion ' in locating hole, and this assembly place left and right groove 33,33 on the base plate 3 ' in; Then base plate 2 is put into lower cover 12, it is fixing to make that projection on the base plate 2 inserts in the hollow circuit cylinder 122 on the lower cover 12, and makes and insert cave mouth 34 and be arranged in window A, and flat with holes 31 is arranged in breach B; The installing hole 112 of button 2 along loam cake 11 inserted in the loam cakes 11, and offsets by spring 5 and locating slot 115 in the loam cake 11, the directing shoulder 21 of button 2 both sides and guide wall 114 in the loam cake 11 are matched after slidably; Compress after at last loam cake 11 assemblies and lower cover 12 assemblies being closed up, it is in aggregates to make the snapping nail 121 of snapping post 111 and lower cover 12 of loam cake 11 buckle the back.

During use, flat 3,411,421 backs of at first safety belt 10 being passed respectively in base plate 3 and the left and right plug 41,42 with holes are fixing, then left and right plug 41,42 amalgamations, insert in the slotting cave of base plate 3, this moment, left and right plug 41,42 successively promoted to move behind left and right lock dog 9,9 ' move outward, the slide block 6, after insertion puts in place, left and right compression spring 8,8 ' effect under, left and right lock dog 9,9 ' respectively slips in the left and right bayonet socket 413,423 on the left and right pin 41,42, thereby fastens left and right pin 41,42.If will open safety belt buckle, at first plug 4 thrusters are moving dorsad with button 2, make button 2 hypotenuses 22,22 ' left and right lock dog 9,9 of promotion ' on left and right boss 91,91 ' outwards move, thereby drive left and right lock dog 9,9 ' outward and move and make left and right compression spring 8,8 ' compression, finally make the bayonet socket 413,423 of left and right lock dog 9,9 ' from left and right pin 41,42 and skid off, slide block 6 promoted left and right pin 412,422 and ejected slotting cave under the restoring force effect of compression spring 7 this moment.

Claims

1, a kind of safety belt buckle, it comprises:

One shell (1) is formed by taking off the loam cake (11) and the lower cover (12) that close mutually, and is provided with window (A) at loam cake (11) and lower cover (12) place of closing up and with respect to the breach (B) of window end;

One base plate (3), be positioned at shell (1) and be provided with horizontal slotting cave, should insert cave mouth (34) is contained in the above-mentioned window (A), described base plate (3) is gone up (31) with holes that are provided with extended above-mentioned breach (B) with slotting cave mouth (34) opposite end, base plate (3) face is provided with and plugs in the guide groove (32) that the cave communicates, accommodate slide block (6) in the described guide groove (32) and be positioned at slide block (6) and guide groove (32) wall between compression spring (7);

One button (2) be positioned at base plate (3) top, and part is exposed to outside the shell (1);

One plug (4) is spliced by left and right plug (41), (42), is respectively equipped with (411) with holes, (421) of fixing safety belt (10) on described left and right plug (41), (42) and can inserts pin (412), (422) in above-mentioned slotting cave;

It is characterized in that:

Be symmetrical arranged left and right groove (33), (33 ') that communicate with slotting cave on base plate (3) upper surface between described guide groove (32) and the slotting cave mouth (34), be equipped with left and right lock dog (9), (9 ') and compression spring (8), (8 ') between lock dog and groove walls in described left and right groove (33), (33 ') respectively;

Described left and right pin (412), (422) are symmetricly set on the plug (4), and are provided with bayonet socket (413), (423) of matching with above-mentioned left and right lock dog (9), (9 ') in spliced bilateral symmetry;

Be arranged with on described button (2) inner surface and touch mutually with above-mentioned left and right lock dog (9), (9 ') and can promote inside and outside hypotenuse (22), (22 ') of moving of left and right lock dog (9), (9 ').

2, safety belt buckle according to claim 1 is characterized in that: be symmetrically arranged with front end left and right boss (91), (91 ') curved and that match with button (2) hypotenuse (22) on described left and right lock dog (9), (9 ') end face.

3, safety belt buckle according to claim 1 and 2 is characterized in that: described button (2) offsets by spring (5) and loam cake (11), and is provided with directing shoulder and guide wall in the cooperation place of the two, makes button (2) loam cake (11) slip relatively.

4, safety belt buckle according to claim 3 is characterized in that: described directing shoulder (21) is positioned at the both sides of button (2), and described guide wall (114) is positioned on the inner surface of loam cake (11).

5, safety belt buckle according to claim 1 is characterized in that: described guide groove (32) is T-shape.