CN2745802Y

CN2745802Y - Suction energy storage anticollision safety device

Info

Publication number: CN2745802Y
Application number: CN 200420070855
Authority: CN
Inventors: 梁文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-25
Filing date: 2004-06-25
Publication date: 2005-12-14
Anticipated expiration: 2014-06-25

Abstract

The utility model relates to a suction energy storage anti-collision safety device, comprising a spring seat cover which is provided with a spring cavity and the inner side of which is provided with a compression spring. The middle part of a push rod is provided with a shoulder which and the bottom surface of the spring cavity can be pressed with the compression spring, and the push rod and the spring seat cover are matched in a gap and the head can be extended from the spring cavity; the safety device also comprises a locking portion with the simple structure, and the locking portion is provided with a locking cavity whose axial direction can become the diameter gradually; the tail section of the push rod is arranged in the locking cavity and is sheathed with a pressing plate, a locking spring is arranged between the pressing plate and the large end face of the locking cavity, and a locking block is arranged between the pressing plate and the small end face of the locking cavity. The locking section not only has simple structure, but also has good manufacturability and reliable work.

Description

Force absorbing energy storage anti-colliding safety device

Technical field

The utility model relates to the fender guard of equipment when suffering severe impact, specifically a kind of force absorbing energy storage anti-colliding safety device.

Background technology

There are many equipment can be subjected to the impact that should not be subjected under the normal operating condition; the severe impact that is subjected to when for example automobile takes place to collide; from high-rise free fall etc., at this moment people needed to be taken precautions against by fender guard, to reduce damage and the injury that equipment, personnel are caused when elevator broke down.In addition, the equipment that also has can be subjected to inevitable severe impact, the severe impact that is subjected to when falling ground after rise as the recoverable spacecraft, and the device that also needs protection reduces the harm that impact brings.

For the problems referred to above, CN88107483.7 Chinese invention patent specification sheets discloses the technical solution that name is called " automobile anticollision device capable of energy-accumulation by pneumatic and hydraulic ", impulsive force when it utilizes bump, hold the cylinder that high-pressure inert gas is arranged by the bumper/spoiler unlatching, cylinder is under the promotion of unreactable gas, and counter pushing away hit next automobile.The defective of this scheme is that the automobile after being clashed into can not absorb impact and consume, and rebound effect can make car body and occupant damage.

At this defective, the applicant discloses the technical solution that name is called " force absorbing energy storage anti-colliding safety device " in CN2608352Y number Chinese utility model patent specification sheets, scheme has adopted an elastic compression device and a reset attachment, elastic compression device comprises push rod, compression spring, spring socket sleeve and clamp, push rod is provided with laciniation, laciniation is with compression spring and spring socket sleeve outward, the clamp that is used to block the sawtooth facing is equipped with in the spring socket sleeve end, on the clamp axle torsion spring is housed, reset attachment comprises reset screw mandrel and reduction nut.When the push rod head of elastic compression device is hit, impact energy can be converted to the deformation energy of compression spring, simultaneously, the distortion meeting of compression spring is kept by mechanism, promptly can not discharge immediately, this has prevented that effectively compression spring is out of shape the injury of bringing to equipment or personnel when freely discharging.

Summary of the invention

Main purpose of the present utility model provides has the simple more force absorbing energy storage anti-colliding safety device of structure;

Another purpose of the present utility model provides the force absorbing energy storage anti-colliding safety device of being convenient to reset after the impact.

For this reason, the technical scheme that the utility model provides adopts the spring socket sleeve with spring cavity and built-in compression spring, push rod middle part have one with the spring cavity bottom surface between pressure put the shoulder of described compression spring, push rod and spring socket sleeve free-running fit head stretch out from spring cavity, also has a tight lock part, tight lock part is made of locking spring, a block pressur plate and the latch segment that spring socket sleeve has in the lock chambers of axial gradual change diameter and push rod rear, the lock chambers, locking spring is positioned between pressing plate and lock chambers large end face to be put, and latch segment is positioned between pressing plate and lock chambers small end face.Tight lock part can also be by a law chamber, push rod rear, swivel nut and the law that is positioned at the law chamber constitute, push rod rear and one is positioned at the swivel nut screw thread fit in law chamber, and law one end is fixed on the law cavity wall, and the other end and swivel nut fix.

By above technical scheme as seen, the compression spring that the utility model has adopted the more simple tight lock part of structure to prevent to absorb after the impact energy discharges energy of deformation immediately, thereby has more economically, the failure-free advantage.

For safety with the compression spring energy of deformation is released, the utility model has also designed the reset attachment that is used to discharge energy of deformation that is made of screw mandrel, screw.Its principle of work and structure will be described in conjunction with the embodiments.

Description of drawings

Fig. 1 is first kind of constructional drawing of first embodiment;

Fig. 2 is the erection plan of the described structure of Fig. 1;

Fig. 3 is the constructional drawing of second embodiment;

Fig. 4 is the mounting structure figure that one group of second embodiment is used for automobile collision preventing;

Fig. 5 is second kind of constructional drawing of first embodiment;

Fig. 6 is the erection plan of the described structure of Fig. 5.

Wherein, be described further below in conjunction with two embodiment and accompanying drawing thereof.

Embodiment

First embodiment:

Referring to Fig. 1, push rod 1 shoulder is positioned at spring socket sleeve 3 below 102, and head 101 is directly accepted impulsive force or is connected with the impulsive force supporting, and spring socket sleeve 3 shells are provided with the connecting portion 302 that fixes usefulness with protected equipment.A spring cavity 303 is arranged in the spring socket sleeve 3, upper end cover 301 shoulder 102 of push rod 1 is stuck in the spring cavity 303 and with the push rod free-running fit, 304 of shoulder 102 and boss are equipped with compression spring 2.The rear of push rod 1 passes boss 304 and is positioned at lock chambers 305, lock chambers 305 has a gradual change cross section face section, a lock spring 6 is enclosed within on the rear, and between bottom 306 and pressing plate 5, pressing plate 5 and rear free-running fit, one group of latch segment 4 of its another side pushing tow, latch segment 4 are one group of circumferential uniform balls in lock chambers 305.Certainly, as shown in Figure 5 and Figure 6: if the axial section of rear and lock chambers 305 is polygons, latch segment 4 can also be roller or contract piece, can obtain bigger locking friction face.

Can be as the concrete application of present embodiment on an automobile referring to Fig. 2, this is the plane simplified schematic diagram of an automotive front, not belonging to structure of the present utility model represents with long and two-short dash line in Fig. 2, usually, the front bumper 9 of automobile is directly to be fixed on the cross member of frame 10, for this example, can adopt the force absorbing energy storage anti-colliding safety device of three or many aforementioned structures, its force absorbing energy storage anti-colliding safety device is fixed by bolts on the cross member of frame 10 by the connecting portion on the spring socket sleeve 3, and front bumper 9 then repacking is fixed on the head of push rod 1.Reset attachment is fixed on the bumper/spoiler 9 by an end, and the other end passes the screw 8 of crossing the screw mandrel 7 in bar hole on the cross member of frame 10 and being spun on this end and constitutes, and this example adopts two cover reset attachments.When the car front portion is subjected to the impact that the direction of arrow is shown among Fig. 2 freely when (as car accident takes place), bumper/spoiler 9 is at first stressed, and pass to push rod 1,102 pairs of compression springs of shoulder compress the absorption impact energy, this moment, tight lock part was open, push rod 1 can show right-hand moving to Fig. 2 relative to spring socket sleeve 3, impact when finishing, there is the formula that becomes of nature release in the compression spring 2 that has absorbed energy, even push rod 1 relative spring socket sleeve moves left, but the friction force that the gradual change cross section inwall of push rod rear and lock chambers 305 and latch segment are 4 causes latch segment 4 to be squeezed in therebetween, stop the push rod left lateral, thereby prevented the release immediately of energy of deformation, the bounce-back after promptly having prevented to collide takes place.Carry out as follows when resetting, earlier two nuts 8 that overlap reset attachments are threaded to and are adjacent to cross member of frame 10, unscrew the bottom 306 of force absorbing energy storage anti-colliding safety device, tight lock part is unblanked, and then progressively loosen nut 8 force absorbing energy storage anti-colliding safety device is resetted, screw bottom 306 at last.

Second embodiment:

Referring to Fig. 3, the label identical with last example represented identical structure, this example is the tight lock part that has adopted another version with the difference of last example, the rear of different is push rod 1 is provided with screw thread 103, itself and swivel nut 12 screws thread fit, spring socket sleeve 3 has a law chamber 307, law 11 1 ends in it are fixed on 307 inwalls of law chamber, the other end is fixed on the swivel nut 12, swivel nut 12 stretches out on the zone of bottom 306 an instrument position 13, and this routine instrument position is a square groove.

Concrete application on an automobile can be referring to Fig. 4 equally as present embodiment, and for simplicity's sake, only the working mechanism to tight lock part is illustrated, other repeat no more identical with precedent.When push rod 1 is impacted to right lateral, originally tensioning law driven in rotation nut 12 twirl, thereby make push rod 1 be able to right lateral, after bump finishes, the release of compression spring 2 energy of deformations is limited by the screw thread self-locking of 12 of the screw thread 103 of push rod 1 rear and swivel nuts, thereby the bounce-back after having prevented to collide takes place.Step when resetting is as follows, earlier the nuts 8 of two cover reset attachments are threaded to and are adjacent to cross member of frame 10, be enclosed within on the square groove 13 of swivel nut 12 with special wrench and rotate swivel nut 12, make tight lock part unblank to loosen push rod 1, loosen nut 8 again, force absorbing energy storage anti-colliding safety device is resetted.

Claims

1, force absorbing energy storage anti-colliding safety device comprises

Spring socket sleeve with spring cavity and built-in compression spring;

Push rod middle part have one with the spring cavity bottom surface between pressure put the shoulder of described compression spring, push rod and spring socket sleeve free-running fit head stretch out from spring cavity;

It is characterized in that:

Also have a tight lock part, tight lock part has following structure

Described spring socket sleeve also has a lock chambers that has axial gradual change diameter;

The push rod rear is positioned at lock chambers and is with pressing plate;

Be equipped with locking spring between pressing plate and lock chambers large end face;

Built-in latch segment between pressing plate and lock chambers small end face.

2, force absorbing energy storage anti-colliding safety device according to claim 1 is characterized in that:

Under the effect of locking spring, described latch segment radially contacts with cavity wall and push rod side face respectively in lock chambers.

3, force absorbing energy storage anti-colliding safety device according to claim 1 and 2 is characterized in that:

Also comprise a reset attachment that constitutes by screw mandrel and screw.

4, force absorbing energy storage anti-colliding safety device comprises

Spring socket sleeve with spring cavity and built-in compression spring;

It is characterized in that:

Also have a tight lock part, tight lock part has following structure

Described spring socket sleeve also has a law chamber;

Push rod rear and one is positioned at the swivel nut screw thread fit in law chamber;

Law one end is fixed on the law cavity wall, and the other end and swivel nut fix.

5, force absorbing energy storage anti-colliding safety device according to claim 4 is characterized in that:

Described swivel nut is provided with the instrument position axially stretching out described spring socket sleeve at the swivel nut extension.

6, according to claim 4 or 5 described force absorbing energy storage anti-colliding safety devices, it is characterized in that:

Also comprise a reset attachment that constitutes by screw mandrel and screw.