CN207510368U - A kind of safety belt pretensioner steel pipe guiding mechanism - Google Patents

Abstract

The utility model discloses a kind of safety belt pretensioner steel pipe guiding mechanisms, and including pipe collar and tube body, the pipe collar is integrally machined molding with the tube body；Guide groove is offered along the tube length direction, the guide groove is interior and guide pad is equipped on the inboard wall of tube body, for guide way to be exported tube body.The beneficial effects of the utility model are：Using the structure of guide pad, guide way can be made to change the direction of motion during exercise, accurately move to preset position, achieve the purpose that preload, it is simple in structure, it is easy to use.

Description

A kind of safety belt pretensioner steel pipe guiding mechanism

Technical field

The utility model is related to safety belt pretensioner part design fields, and in particular to a kind of safety belt pretensioner steel pipe is led To mechanism.

Background technology

Coiler is the core component of car belt, accounts for the 60%-95% of safety belt cost.The passenger at automobile front row takes Space is small, and in an instant, the space for people's mobile cushioning is also fairly small for collision, at this time needs to consider first that people is firmly solid Determine on the seat, then injure passenger by force limiting device minimum.Pre-tightening apparatus point in several milliseconds by crash sensor Quick-fried gas generator, and withdrawing device is pushed to pull back ribbon, people's binding on the seat.Guide way is needed to exist in pre-tightening apparatus Corresponding position is accurately moved under the action of gas generator, therefore, we design a kind of safety belt pretensioner steel pipe and lead To mechanism, guide way is allow to be run along duct orientation, while the direction of motion of guide way can be changed, make it along cover Inner wall circular motion.

Invention content

The purpose of this utility model is that solve the above-mentioned problems and provides a kind of safety belt pretensioner steel pipe and be oriented to Mechanism, guide way move in tube body, and the exit of guide way is equipped with guide pad, in the quick operational process of guide way, through leading Effect to block makes guide way skid off tube body, and is moved along the inside circumference of preloader cover, reaches the mesh accurately pre-tightened 's.

The utility model is achieved through the following technical solutions above-mentioned purpose：

A kind of safety belt pretensioner steel pipe guiding mechanism, including pipe collar and tube body, the pipe collar integrally adds with the tube body Work is molded；It offers guide groove along the tube length direction, is equipped in the guide groove and on the inboard wall of tube body and leads To block, for guide way to be exported tube body.

Further, the guide pad be inclined boss structure, and along guide way export direction inboard wall of tube body with The boss structure is smoothly connected.

Further, the guide groove is arc notch, and the arc notch is along the section in guide way export direction Inclined-plane, and the angle of inclination of the boss structure is more than the angle of inclination on the inclined-plane.

Further, the periphery of the pipe collar is equipped with 4 mounting holes, for being fixed with preloader frame.

Further, the end of the tube body be equipped with connecting portion, the connecting portion be a plane, direction and the institute of the plane The opening direction for stating guide groove is vertical.

Further, through-hole is offered on the connecting portion, screw is fixedly connected across the through-hole with preloader frame.

Using the above structure, mounting hole is offered on the pipe collar, fixing piece fixes tube body across the mounting hole, institute State pipe collar diameter be more than the tube body diameter, convenient for the entrance of guide way, the guide way along the guide pipe side It to movement, when encountering the guide pad, skids off from the guide groove along guide pad, and justifies along the inside of preloader cover Circumferential direction moves.

To sum up, the beneficial effects of the utility model are：Using the structure of guide pad, guide way can be made to change during exercise Become the direction of motion, accurately move to preset position, achieve the purpose that preload, it is simple in structure, it is easy to use.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it can also be obtained according to these attached drawings other attached drawings.

Fig. 1 is the three-dimensional view of the utility model；

Fig. 2 is the front view of the utility model；

Fig. 3 is the utility model and preloader cover assembling assumption diagram.

The reference numerals are as follows：

1st, tube body；2nd, pipe collar；3rd, mounting hole；4th, guide groove；5th, guide pad；6th, guide surface；7th, connecting portion；8th, through-hole；9、 Preloader cover.

Specific embodiment

It, below will be to the technology of the utility model to make the purpose of this utility model, technical solution and advantage clearer Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made Obtained all other embodiment is put, belongs to the range that the utility model is protected.

Referring to shown in Fig. 1-Fig. 3, the utility model provides a kind of safety belt pretensioner steel pipe guiding mechanism, including pipe collar 2 and tube body 1, the pipe collar 2 is integrally machined molding with the tube body 1, it is ensured that the stability of structure and raising intensity；Along institute It states and guide groove 4 is offered on 1 length direction of tube body, guide pad 5 is equipped in the guide groove 4 and on 1 inner wall of tube body, is used In guide way is exported tube body 1, under the action of the guide pad 5, the guide way quickly moved is along the oblique of the guide pad 5 Face changes direction, is skidded off from the guide groove 4, and along the circular motion of 9 inside of preloader cover.

Further, the guide pad 5 is inclined boss structure, and along 1 inner wall of tube body in guide way export direction It is smoothly connected with the boss structure, when being oriented to, advantageously ensures that the stability of guide way；The guide groove 4 is arc V notch v, and the arc notch is inclined-plane, and the angle of inclination of the boss structure is big along the section in guide way export direction It is more convenient to export guide way in the angle of inclination on the inclined-plane, the guide way in export is avoided to collide tube body 1, inclined-plane Structure be conducive to bearing diagonal guide way, further improve guide way movement stability.

For the guiding mechanism is fixed, the periphery of the pipe collar 2 is equipped with 4 mounting holes 3, for preloader frame It is fixed；The end of the tube body 1 is equipped with connecting portion 7, and the connecting portion 7 is a plane, the direction of the plane and the guide groove 4 Opening direction it is vertical；Through-hole 8 is offered on the connecting portion 7, screw is fixedly connected across the through-hole 8 with preloader frame.

Using the above structure, mounting hole 3 is offered on the pipe collar 2, fixing piece consolidates tube body 1 across the mounting hole 3 Fixed, the diameter of the pipe collar 2 is more than the diameter of the tube body 1, and convenient for the entrance of guide way, the guide way is along the guiding The direction movement of pipe, when encountering the guide pad 5, skids off, and from the guide groove 4 along preloader lid along guide pad 5 The inside circumference direction movement of body 9.

The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power Subject to the protection domain of profit requirement.

Claims (6)

1. a kind of safety belt pretensioner steel pipe guiding mechanism, it is characterised in that：Including pipe collar and tube body, the pipe collar and the pipe Body is integrally machined molding；Guide groove is offered along the tube length direction, the guide groove is interior and in the inboard wall of tube body Guide pad is equipped with, for guide way to be exported tube body.

2. a kind of safety belt pretensioner steel pipe guiding mechanism according to claim 1, it is characterised in that：The guide pad is inclines Oblique boss structure, and be smoothly connected along the inboard wall of tube body in guide way export direction with the boss structure.

3. a kind of safety belt pretensioner steel pipe guiding mechanism according to claim 2, it is characterised in that：The guide groove is arc V notch v, and the arc notch is inclined-plane, and the angle of inclination of the boss structure is big along the section in guide way export direction In the angle of inclination on the inclined-plane.

4. a kind of safety belt pretensioner steel pipe guiding mechanism according to claim 1, it is characterised in that：The circumference of the pipe collar Face is equipped with 4 mounting holes, for being fixed with preloader frame.

5. a kind of safety belt pretensioner steel pipe guiding mechanism according to claim 1, it is characterised in that：The end of the tube body Equipped with connecting portion, the connecting portion is a plane, and the direction of the plane is vertical with the opening direction of the guide groove.

6. a kind of safety belt pretensioner steel pipe guiding mechanism according to claim 5, it is characterised in that：It is opened on the connecting portion Equipped with through-hole, screw is fixedly connected across the through-hole with preloader frame.