CN102689618B - Automatic unlocking device of safety belt - Google Patents
Automatic unlocking device of safety belt Download PDFInfo
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- CN102689618B CN102689618B CN 201210129731 CN201210129731A CN102689618B CN 102689618 B CN102689618 B CN 102689618B CN 201210129731 CN201210129731 CN 201210129731 CN 201210129731 A CN201210129731 A CN 201210129731A CN 102689618 B CN102689618 B CN 102689618B
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Abstract
The invention discloses an automatic unlocking device of a safety belt. The automatic unlocking device comprises a fixed base, an unlocking pushing block, a locating pin and a driver. The fixed base is provided with a slot for insertion of a fixed end of the safety belt and a first pin hole communicated with the slot, a corresponding guide slot is provided outside of the first pin hole, and a second pin hole which corresponds to the first pin hole and is communicated with the first pin hole is provided in the guide slot; the unlocking pushing block slidingly fits with the guide slot and is connected with a first spring; the location pin is movably inserted in the first pin hole and the second pin hole, one end of the location pin is connected with a second spring, and the other end of the location pin is a locking end of the fixed end of the safety belt; the driver is installed at one side of the unlocking pushing block and has a pushing portion and a driving portion; the locating pin is provided with a first fitting surface; the unlocking pushing block is provided with a second fitting surface fitted with the first fitting surface to promote axial movement of the location pin. The automatic unlocking devices of safety belts are used in fixed safety belts and can be uniformly controlled by a driver to help passengers unlock the safety belts the first time when a malignant accident of vehicle occurs, and the passengers are allowed to immediately escape at best time with best opportunities.
Description
Technical field
The present invention relates to a kind of tripper, particularly relate to a kind of safety strap auto-unlocking device.
Background technology
At present, the safety strap of the vehicle of prior art on market, have 3 fixed types, and 2 fixed types are also arranged, and for 3 fixed car belts, it is the side that seat is fixed at two ends, and stage casing is provided with buckle structure, for being fixed to the opposite side at seat; For 2 fixed car belts, it is each side that two ends are individually fixed in seat, and centre is provided with the link snap close, by operating this link snap close, can complete frenulum or the operation of pine band.No matter be 3 fixation type safety bands or 2 fixation type safety bands, there is a common ground in it: by passenger frenulum and pine band voluntarily.
Some vehicle, for example passenger vehicle or school bus, every day, the passengers quantity of delivery was larger, by safety traffic, runed the regulations requirement, and in the vehicle operating process, all passengers should fasten seat belts.When pernicious burst accident appears in vehicle, while such as compartment fire, vehicle, crashing into river course or mountain valley etc., the passenger is generally in outbreak, very first time action is exactly at once to leave seat to be escaped mostly, now, the passenger is generally with belt on request, but because the people is in fear, the passenger easily forgets self also with belt or escaped (particularly child and old man is more obvious) that be difficult to oneself unfasten one's seat-belt for the moment, and this has just probably directly affected Best Times and the chance of passenger's escape.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, a kind of safety strap auto-unlocking device is provided, it is under the prerequisite of the safety belt structure that does not change the former vehicle, in-use performance and fixed position thereof, only need install an auto-unlocking device additional in the former fixed position of safety strap, can be when pernicious burst accident appears in the vehicle, by the chaufeur unified operation, controlling all passengers safety strap with it unclamps at once automatically, make the passenger in the activity space that at once leaves seat and escape is arranged, for passenger's safe escape has been striven for the valuable time.
The technical solution adopted for the present invention to solve the technical problems is: a kind of safety strap auto-unlocking device comprises:
One firm banking, be provided with slot and the first pin-and-hole for a fixed end insertion of safety strap, and this first pin-and-hole is connected with slot; The outside to the first pin-and-hole that should firm banking has a guide groove, and is provided with the second pin-and-hole corresponding with the first pin-and-hole and that be connected in this guide groove;
One separates lock-pushing rod, and this solution lock-pushing rod is snug fit at described guide groove, and this solution lock-pushing rod is connected with the first spring for it is resetted;
One locating dowel pin, this locating dowel pin activity is inserted in the first pin-and-hole and the second pin-and-hole, and an end of this locating dowel pin is connected with second spring for it is resetted, and the other end of this locating dowel pin is the locking end that enters grafting safety strap one fixed end in described slot;
One actuator, be installed on a side of described solution lock-pushing rod, has one for promoting to separate the drive division of pushing part and for driving pushing part to move that lock-pushing rod slides along described guide groove;
Wherein, locating dowel pin also is provided with the first fitting surface, and the solution lock-pushing rod also is provided with in below and first fitting surface of the first fitting surface and matches to promote second fitting surface of locating dowel pin along its axial motion.
Described solution lock-pushing rod is divided into interconnective the first sliding part and the second sliding part along the axial direction of described guide groove, described locating dowel pin is between the first sliding part and the second sliding part, described actuator is installed on the outside of the first sliding part, described the first spring is connected in the outside of the second sliding part, described the first fitting surface is located at the sidewall of described locating dowel pin top towards the first sliding part, and described the second fitting surface is located at the sidewall of the first sliding part towards described locating dowel pin.
Described the first fitting surface and the second fitting surface are respectively inclined-plane or cambered surface, and the length of the first fitting surface is less than the length of the second fitting surface.
Also comprise outer cover; This outer cover is fixed in described firm banking, and surrounds for holding the cavity of described release pushing block, locating dowel pin, the first spring, the second spring and guide groove with described firm banking; Described the first spring is opened between a madial wall and described release pushing block that peaks at outer cover, and described the second spring is opened between an end of the inner top surface that peaks at outer cover and described locating dowel pin; This outer cover also is provided with a side opening, and described actuator is installed on this side opening place.
The inboard of the side opening of the corresponding described outer cover of described firm banking also has a wall, and this wall is provided with an opening passed through for described pushing part.
Described drive division comprises gas generating agent, electro heat resistor wire and airtight aerogenesis chamber; A side of described solution lock-pushing rod is fixed in the aerogenesis chamber, and the two ends of electro heat resistor wire are power connection end, on this electro heat resistor wire, is coated with gas generating agent, and this electro heat resistor wire part of being coated with gas generating agent to stretch into aerogenesis indoor; Described pushing part is a catch bar, and an end sealed sliding of this catch bar is placed in the aerogenesis chamber, and the other end of this catch bar is aimed at described solution lock-pushing rod.
Described drive division comprises coil, the power lead be connected with coil, the penetrating iron core of hollow and two ends, and iron core is fixedly installed in a side of described solution lock-pushing rod, and coil winding is in the iron core outside; Described pushing part is a Permanentmagnet bar, and this Permanentmagnet bar sliding sleeve is in the iron core inboard, and an end of this Permanentmagnet bar is aimed at described solution lock-pushing rod.
Described drive division comprises cylinder, and cylinder is provided with an admission port; Described pushing part is a piston rod, and this piston rod packing sliding sleeve is in cylinder, and an end of this piston rod is aimed at described solution lock-pushing rod.
Described slot is located at the sidewall of described firm banking, and described the first pin-and-hole is located at the end face of described firm banking, and the bottom surface of described firm banking also is provided with opening corresponding with described the first pin-and-hole and that be connected with described slot.
Described firm banking also is provided with mounting hole.
In actual application, can an above-mentioned safety strap auto-unlocking device be installed respectively in one of them fixed point of each safety strap, and on the side, seat of chaufeur, the master cock suitable with the actuator of each safety strap auto-unlocking device is installed, by the chaufeur unified operation.Under normal circumstances, one fixed end snap close of each safety strap is in the mounting strap auto-unlocking device, when sudden emergency episode occurs when, by the unified safety strap auto-unlocking device that starts of chaufeur, all safety strap auto-unlocking devices start at once, be located pin and recess, make a fixed end of safety strap break away from the safety strap auto-unlocking device.So, every passenger can leave seat without the buckle structure of manually removing safety strap or link snap close.
The invention has the beneficial effects as follows, 1, can one above-mentioned safety strap auto-unlocking device be installed in the relevant position at each seat of vehicle, and by unified each mounting strap auto-unlocking device that starts of chaufeur, thereby when pernicious burst accident occurs in vehicle, the very first time is effectively unclamped each safety strap, make the passenger grasp best escape time and chance, thereby the present invention can effectively reduce because vehicle generation burst accident causes personnel escape inconvenience or causes not in time the accident of injures and deaths to occur, it is a kind of effective safe accessory equipment; 2, the present invention does not affect in-use performance and the manual release of safety strap; 3, the present invention also has the characteristics such as simple and practical, low cost of manufacture.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of safety strap auto-unlocking device of the present invention is not limited to embodiment.
The accompanying drawing explanation
Fig. 1 is embodiment mono-axonometric drawing one of the present invention (before the outer cover installation);
Fig. 2 is embodiment mono-axonometric drawing two of the present invention (before the outer cover installation);
Fig. 3 is the axonometric drawing of embodiment mono-firm banking of the present invention;
Fig. 4 is the axonometric drawing of embodiment mono-guide groove of the present invention;
Fig. 5 is the axonometric drawing one of embodiment mono-solution lock-pushing rod of the present invention;
Fig. 6 is the axonometric drawing two of embodiment mono-solution lock-pushing rod of the present invention;
Fig. 7 is the axonometric drawing one of embodiment mono-locating dowel pin of the present invention;
Fig. 8 is the axonometric drawing two (locating dowel pin inversion) of embodiment mono-locating dowel pin of the present invention;
Fig. 9 is embodiment mono-cutaway view of the present invention (the locating dowel pin other end is positioned at slot);
Figure 10 is embodiment mono-cutaway view of the present invention (the locating dowel pin other end breaks away from slot);
Figure 11 is embodiment mono-use schematic diagram of the present invention;
Figure 12 is embodiment bis-cutaway view of the present invention (the locating dowel pin other end is positioned at slot);
Figure 13 is embodiment bis-cutaway view of the present invention (the locating dowel pin other end breaks away from slot);
Figure 14 is embodiment tri-cutaway view of the present invention (the locating dowel pin other end is positioned at slot);
Figure 15 is embodiment tri-cutaway view of the present invention (the locating dowel pin other end breaks away from slot).
The specific embodiment
Embodiment mono-:
Shown in Fig. 1-Fig. 9, a kind of safety strap auto-unlocking device of the present invention comprises:
One firm banking 1, a sidewall of this firm banking 1 is provided with a slot 11 inserted for a fixed end of safety strap, and the end face of this firm banking 1 is provided with first pin-and-hole 12, and this first pin-and-hole 12 is connected with slot 11; The outside to the first pin-and-hole 12 that should firm banking has a guide groove 2, and is provided with second corresponding with the first pin-and-hole 12 and a be connected pin-and-hole 21 in this guide groove 2; Here, can make guide groove 2 and firm banking 1 is structure independent of each other, and also can make guide groove 2 and firm banking 1 is the integral type structure;
One separates lock-pushing rod 3, this solution lock-pushing rod 3 is snug fit at above-mentioned guide groove 2, specifically in two inboards of the axial direction of guide groove 2, slide rail 22 is set respectively, corresponding raised line 34 is set respectively separating the corresponding both sides of lock-pushing rod 3, make each raised line 34 sliding sleeves in corresponding slide rail 22; The outside (the second sliding part 32 is away from a side of the first sliding part 31) that this solution lock-pushing rod 3 is divided into interconnective the first sliding part 31 in bottom and the second sliding part 32, the second sliding parts 32 along the axial direction of guide groove is connected with for making to separate the first spring 5 that lock-pushing rod resets; The first sliding part 31 has three vertical planes, and these three vertical walls surround the U font, and wherein two ends, the bottom one of two relative vertical walls and the second sliding part 32 is joined;
One locating dowel pin 4, this locating dowel pin 4 is between the first sliding part 31 and the second sliding part 32 of separating lock-pushing rod, and activity is inserted in the first pin-and-hole 12 and the second pin-and-hole 21, and an end of this locating dowel pin 4 (being the top of locating dowel pin 4) is connected with second spring 6 for it is resetted, and specifically it is to offer the knock hole 42 of second spring 6 on the top of locating dowel pin 4; The other end of this locating dowel pin 4 (being the bottom of locating dowel pin 4) is the locking end that enters interior grafting safety strap one fixed end of slot 11 of firm banking;
One actuator 7, be installed on a side of separating lock-pushing rod 3, is installed on specifically the outside (the first sliding part 31 is away from a side of the second sliding part 32) of the first sliding part 31 of separating lock-pushing rod; This actuator 7 has one for promoting to separate pushing part and the drive division for drive pushing part move of lock-pushing rod 3 along the axial direction slip of guide groove;
Wherein, the top of locating dowel pin 4 is cube structure, the bottom of locating dowel pin is cylindrical structure, this locating dowel pin 4 also is provided with the first fitting surface 41, concrete this first fitting surface 41 is located at the sidewall of locating dowel pin top towards the first sliding part 31, at locating dowel pin top two, on relative side wall surface, the first fitting surface 41 is set respectively; Solution lock-pushing rod 3 also is provided with in below and first fitting surface 41 of the first fitting surface 41 and matches to promote second fitting surface 33 of locating dowel pin 4 along its axial motion, concrete this second fitting surface 33 be located at separate lock-pushing rod the first sliding part 31 on the sidewall of locating dowel pin 4, be located at the end face of above-mentioned two relative vertical walls of the first sliding part 31.Here, the first fitting surface 41 and the second fitting surface 33 are respectively smooth inclined-plane (certainly, also can adopt cambered surface), and the length of the first fitting surface 41 is less than the length of the second fitting surface 33.
As a kind of preferred, the present invention also comprises an outer cover 8; This outer cover 8 is fixed in firm banking 1, and and firm banking 1 between surround for holding the cavity of release pushing block 4, locating dowel pin 4, the first spring 5, the second spring 6 and guide groove 2; The first spring 5 is opened between the second sliding part 32 of the madial wall that peaks at outer cover 8 and release pushing block just, and the second spring 6 is opened between the top of the inner top surface that peaks at outer cover 8 and locating dowel pin 4 just; The outside of the first sliding part 31 of these outer cover 8 homographic solution lock-pushing rods is provided with a side opening 81, and described actuator is installed on this side opening 81 places just.The inboard of the side opening 81 of firm banking 1 corresponding outer cover also has a wall 13, and this wall 13 is the L font, and the one side in corresponding first sliding part 31 outsides of this wall 13 is provided with an opening 131 passed through for the pushing part of actuator.
Above-mentioned firm banking 1 specifically is bent into bilevel plate by one and forms, and there is gap between this plate upper and lower two-layer, the bending place of this plate forms the sidewall of firm banking 1, and top plate forms the end face of firm banking 1, and lower plywood forms the bottom surface of firm banking; Bending place at this plate arranges opening, and coordinates gap between its upper and lower two-ply to form the slot 11 of firm banking, and the first pin-and-hole 12 of above-mentioned firm banking 1 is sitting at top plate.The bottom surface of firm banking 1 (being lower plywood) also be provided with one with the first pin-and-hole corresponding and opening 14 that be connected with slot 12 Shang Xia 12.Also be provided with a mounting hole 15 on firm banking 1, specifically this mounting hole 15 is located on lower plywood.
As shown in Figure 9, described drive division comprises gas generating agent 714, electro heat resistor wire 713 and airtight aerogenesis chamber; The aerogenesis chamber is surrounded by the first housing 711 be tightly connected mutually and the second housing 712, the first housing 711 is fixed in side opening 81 places of outer cover, the two ends of electro heat resistor wire 713 are power connection end, these electro heat resistor wire 713 overcoats have a stop-off plastics, this electro heat resistor wire 713 is exposed to the outer part of stop-off plastics and is coated with gas generating agent 714, and hermetically passing the second housing 712 to enter aerogenesis indoor; Described pushing part is a catch bar 715, one end of this catch bar 715 is placed in the aerogenesis chamber through the first housing 711 sealed sliding, the other end of this catch bar 715 can pass the first housing 711, and is positioned at the opening 131 of above-mentioned wall, aims at the first sliding part 31 of separating lock-pushing rod simultaneously.As a kind of preferred, above-mentioned gas generating agent 714 adopts a kind of solid nitrogen gas generating agent, this solid nitrogen gas generating agent mainly by the neutrality of 53～67 weight portions chemistry inorganic salts (as potassium citrate, mineral chameleon, potassium nitrate etc.) make oxidizer, by the neutrality of 17～22 weight portions and the high organic matter of carbon content (as plant extracts, comprise charcoal, one or more in cane suger or reed ash) do deoxidation compound, active metal powder (as aluminium powder or magnesium powder) by a kind of 1.5～3.5 weight portions is done catalyst, the stabilizer (as magnesium carbonate or melamine) of 5～14 weight portions in addition, resin glue with 4～8 weight portions is made adhesives, with the moisture resisting agent of 4～8 weight portions (as Chinese wax, the mixing of one or both in rosin) etc. combination of materials forms, and make it to become solid shape by putting on certain pressure.Certainly, above-mentioned gas generating agent 714 also can adopt the aerogenesis medicine of prior art to realize.
As shown in figure 11, during use, one fixed end 91 of safety strap 9 (having a jack 92 on this fixed end 91) is inserted in the slot 11 of firm banking, make the jack 92 of safety belt fixed end plug and coordinate with the bottom of locating dowel pin 4 in slot 11: can be before outer cover 8 is installed, one fixed end 91 of safety strap is inserted in the slot 11 of firm banking, locating dowel pin 4 again moves down, also can be after outer cover 8 be installed, utilize the opening 14 of firm banking bottom surface, first by accessory appliances by locating dowel pin 4 jack-up, after making a fixed end 91 of safety strap insert the slot 11 of firm bankings, put down again locating dowel pin 4.Under normal condition, the bottom of locating dowel pin 4 positions in the interior fixed end 91 to safety strap of the slot 11 of firm banking, and the bottom of the second fitting surface 33 of first fitting surface 41 at locating dowel pin top and the first sliding part is local identical.When needs are unfastened one's seat-belt, only need the two ends of electro heat resistor wire 713 be switched on, 713 pairs of gas generating agents 714 of electro heat resistor wire are heated, when 714 heating of 713 pairs of gas generating agents of electro heat resistor wire reach more than 200 ℃, oxidizer in gas generating agent 714 and deoxidation compound generation chemical reaction, at once produce the gases such as a large amount of nitrogen and carbon dioxide, make the indoor air pressure moment rising of aerogenesis, catch bar 715 is under the promotion of aerogenesis indoor gas pressure, towards separating lock-pushing rod 3 motions, and promote to separate elastic force that lock-pushing rod 3 overcomes the first spring 5 and move along the axial direction of guide groove 2.Now, as shown in figure 10, along with the movement of separating lock-pushing rod 3, the second fitting surface 33 of its first sliding part is also and then mobile, and upwards push the first fitting surface 41 of locating dowel pin, overcome the elastic force effect of the second spring 6 along its axial upward movement thereby drive locating dowel pin 4; When the bottom of locating dowel pin 4 breaks away from slot 11 fully, the fixed end 91 of safety strap can break away from the slot 11 of firm banking.
A kind of safety strap auto-unlocking device of the present invention, it both had been applicable to 2 fixation type safety bands, also be applicable to 3 fixation type safety bands: for 2 fixation type safety bands, can adopt the present invention to be fixed one of them fixed end of this safety strap, so, the passenger only need, by the link snap close on the safety of operation band, can manually complete the process of frenulum and pine band; For 3 fixation type safety bands, can with two fixed ends on one side, adopt respectively the present invention to be fixed this safety strap, and a remaining fixed end be fixed voluntarily by this safety strap by the passenger.Therefore, adopt above-mentioned safety strap auto-unlocking device, neither affect the structure of safety strap and set installation site, also do not affect manual release operation and the in-use performance of safety strap.In actual application, can or locate to install respectively above-mentioned safety strap auto-unlocking device with two attachment points (for 3 fixation type safety bands) on one side at one of them attachment point (for 2 fixation type safety bands) of each locational safety strap of vehicle, and on the side, seat of chaufeur, the master cock (for control the switching electricity of electro heat resistor wire) suitable with the actuator of each safety strap auto-unlocking device is installed.Under normal circumstances, one fixed end snap close of each safety strap is in the safety strap auto-unlocking device, when sudden emergency episode occurs in vehicle, by the unified master cock that starts each safety strap auto-unlocking device of chaufeur, all safety strap auto-unlocking devices start at once, be located pin and recess, make a fixed end of each safety strap break away from the safety strap auto-unlocking device.So, every passenger can leave seat without the buckle structure of manually removing safety strap or link snap close.
Embodiment bis-:
Shown in Figure 12, this embodiment bis-is with the difference of above-described embodiment one: its actuator is electromagnetic driver, its drive division comprises coil 722, the penetrating iron core 721 in the power lead 723, hollow and the two ends that are connected with coil 722, iron core 721 adopts a connecting element 724 to be fixedly installed in side opening 81 places of outer cover, and coil 722 is wound in the outside of iron core 721; Described pushing part is a Permanentmagnet bar 725, and these Permanentmagnet bar 725 sliding sleeves are in the inboard of iron core 721, and an end of this Permanentmagnet bar 725 is positioned at opening 131 places of the wall of firm banking, and aims at the first sliding part 31 of separating lock-pushing rod 3.
Its principle of work is: as shown in figure 13, add certain voltage at the two ends of coil 722, make in coil 722 to flow through certain electric current, thereby generation galvanomagnetic effect, produce magnetic field around iron core 721, and the N in this magnetic field, the S utmost point just with the N of Permanentmagnet bar 725, the S level is contrary, the principle of mutually repelling according to magnetic pole of the same name, magnetic field around the magnetic field of Permanentmagnet bar 725 and iron core 721 is mutually repelled and is moved to the direction of separating lock-pushing rod 3, and promotion solution lock-pushing rod 3 overcomes the axial direction slip of the elastic force of the first spring 5 along guide groove 2, thereby making to separate lock-pushing rod 3 drives locating dowel pins 4 and overcomes the elastic force upward movement of the second spring 6 and make the bottom of locating dowel pin 4 break away from the slot 11 of firm banking.This actuator is reversible type: after coil 722 outages, magnetic field around iron core 721 disappears, separate lock-pushing rod 3 moves along contrary direction under the elastic force effect of the first spring 5, make the first fitting surface 41 of locating dowel pin lose the push effect of the second fitting surface 33, locating dowel pin 4 moves downward under the elastic force effect of the second spring 6 simultaneously, make the bottom of this locating dowel pin 4 reenter the slot 11 of firm banking, as shown in figure 12.
Embodiment tri-:
Shown in Figure 14, this embodiment tri-is with the difference of above-described embodiment one, embodiment bis-: its actuator is the air cylinder driven device, its drive division comprises cylinder 731, and this cylinder 731 is provided with an admission port 732, and this cylinder 731 is installed on side opening 81 places of outer cover; Described pushing part is a piston rod 733, and these piston rod 733 sealed sliding are placed in cylinder 731, and an end of this piston rod 733 is positioned at opening 131 places of the wall of firm banking, and aims at the first sliding part 31 of separating lock-pushing rod.
Its principle of work is: as shown in figure 15, admission port 732 air inlets from cylinder 731, piston rod 733 is moved towards the direction of separating lock-pushing rod 3 under gas pressure, promote to separate elastic force that lock-pushing rod 3 overcomes the first spring 5 simultaneously and slide along the axial direction of guide groove 2, thereby make to separate lock-pushing rod 3, drive locating dowel pins 4 and overcome the elastic force upward movement of the second spring 6 and make the bottom of locating dowel pin 4 break away from the slot 11 of firm banking.This actuator is also reversible type: after cylinder 731 stops air inlet, gas in cylinder 731 is overflowed from admission port 732, make the air pressure reduction in cylinder 731 and be not enough to promote piston rod 733 motions, separate lock-pushing rod 3 moves along contrary direction under the elastic force effect of the first spring 5, make the first fitting surface 41 of locating dowel pin lose the push effect of the second fitting surface 33, locating dowel pin 4 moves downward under the elastic force effect of the second spring 6 simultaneously, make the bottom of this locating dowel pin 4 reenter the slot 11 of firm banking, as shown in figure 14.
A kind of safety strap auto-unlocking device of the present invention, above-mentioned safety strap auto-unlocking device is installed in the relevant position at each seat in vehicle, and after by chaufeur, the actuator of each safety strap auto-unlocking device being unified to control, can be when sudden emergency episode occurs in vehicle, by the unified actuator that starts each safety strap auto-unlocking device of chaufeur, in the very first time, help every passenger to untie the safety strap tied up to it, every passenger is had and at once leave activity space and the chance of being escaped at seat.
Above-described embodiment only is used for further illustrating a kind of safety strap auto-unlocking device of the present invention; but the present invention is not limited to embodiment; any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all fall in the protection domain of technical solution of the present invention.
Claims (10)
1. a safety strap auto-unlocking device is characterized in that: comprising:
One firm banking, be provided with slot and the first pin-and-hole for a fixed end insertion of safety strap, and this first pin-and-hole is connected with slot; The outside to the first pin-and-hole that should firm banking has a guide groove, and is provided with the second pin-and-hole corresponding with the first pin-and-hole and that be connected in this guide groove;
One separates lock-pushing rod, and this solution lock-pushing rod is snug fit at described guide groove, and this solution lock-pushing rod is connected with the first spring for it is resetted;
One locating dowel pin, this locating dowel pin activity is inserted in the first pin-and-hole and the second pin-and-hole, and an end of this locating dowel pin is connected with second spring for it is resetted, and the other end of this locating dowel pin is the locking end that enters grafting safety strap one fixed end in described slot;
One actuator, be installed on a side of described solution lock-pushing rod, has one for promoting to separate the drive division of pushing part and for driving pushing part to move that lock-pushing rod slides along described guide groove;
Wherein, locating dowel pin also is provided with the first fitting surface, and the solution lock-pushing rod also is provided with in below and first fitting surface of the first fitting surface and matches to promote second fitting surface of locating dowel pin along its axial motion.
2. safety strap auto-unlocking device according to claim 1, it is characterized in that: described solution lock-pushing rod is divided into interconnective the first sliding part and the second sliding part along the axial direction of described guide groove, described locating dowel pin is between the first sliding part and the second sliding part, described actuator is installed on the outside of the first sliding part, described the first spring is connected in the outside of the second sliding part, described the first fitting surface is located at the sidewall of described locating dowel pin top towards the first sliding part, and described the second fitting surface is located at the sidewall of the first sliding part towards described locating dowel pin.
3. safety strap auto-unlocking device according to claim 1 and 2, it is characterized in that: described the first fitting surface and the second fitting surface are respectively inclined-plane or cambered surface, and the length of the first fitting surface is less than the length of the second fitting surface.
4. safety strap auto-unlocking device according to claim 1, is characterized in that: also comprise outer cover; This outer cover is fixed in described firm banking, and surrounds for holding the cavity of described release pushing block, locating dowel pin, the first spring, the second spring and guide groove with described firm banking; Described the first spring is opened between a madial wall and described release pushing block that peaks at outer cover, and described the second spring is opened between an end of the inner top surface that peaks at outer cover and described locating dowel pin; This outer cover also is provided with a side opening, and described actuator is installed on this side opening place.
5. safety strap auto-unlocking device according to claim 4 is characterized in that: the inboard of the side opening of the corresponding described outer cover of described firm banking also has a wall, and this wall is provided with an opening passed through for described pushing part.
6. safety strap auto-unlocking device according to claim 1, it is characterized in that: described drive division comprises gas generating agent, electro heat resistor wire and airtight aerogenesis chamber; A side of described solution lock-pushing rod is fixed in the aerogenesis chamber, and the two ends of electro heat resistor wire are power connection end, on this electro heat resistor wire, is coated with gas generating agent, and this electro heat resistor wire part of being coated with gas generating agent to stretch into aerogenesis indoor; Described pushing part is a catch bar, and an end sealed sliding of this catch bar is placed in the aerogenesis chamber, and the other end of this catch bar is aimed at described solution lock-pushing rod.
7. safety strap auto-unlocking device according to claim 1, it is characterized in that: described drive division comprises coil, the power lead be connected with coil, the penetrating iron core of hollow and two ends, iron core is fixedly installed in a side of described solution lock-pushing rod, and coil winding is in the iron core outside; Described pushing part is a Permanentmagnet bar, and this Permanentmagnet bar sliding sleeve is in the iron core inboard, and an end of this Permanentmagnet bar is aimed at described solution lock-pushing rod.
8. safety strap auto-unlocking device according to claim 1, it is characterized in that: described drive division comprises cylinder, cylinder is provided with an admission port; Described pushing part is a piston rod, and this piston rod packing sliding sleeve is in cylinder, and an end of this piston rod is aimed at described solution lock-pushing rod.
9. safety strap auto-unlocking device according to claim 1, it is characterized in that: it is characterized in that: described slot is located at the sidewall of described firm banking, described the first pin-and-hole is located at the end face of described firm banking, and the bottom surface of described firm banking also is provided with opening corresponding with described the first pin-and-hole and that be connected with described slot.
10. safety strap auto-unlocking device according to claim 1, it is characterized in that: described firm banking also is provided with mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210129731 CN102689618B (en) | 2012-04-27 | 2012-04-27 | Automatic unlocking device of safety belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210129731 CN102689618B (en) | 2012-04-27 | 2012-04-27 | Automatic unlocking device of safety belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102689618A CN102689618A (en) | 2012-09-26 |
| CN102689618B true CN102689618B (en) | 2013-12-25 |
Family
ID=46855402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210129731 Active CN102689618B (en) | 2012-04-27 | 2012-04-27 | Automatic unlocking device of safety belt |
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| CN102995968B (en) * | 2012-12-31 | 2018-02-13 | 林昌 | A kind of auto-unlocking device of push type lock |
| CN105857245B (en) * | 2016-05-12 | 2019-02-26 | 山东科技大学 | A kind of safety belt captured tripper |
| CN109131200A (en) * | 2018-08-01 | 2019-01-04 | 北汽福田汽车股份有限公司 | Safety belt tripper and vehicle for vehicle |
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| US4715096A (en) * | 1986-07-10 | 1987-12-29 | Fleming Joseph A | Thermally actuated seat belt fastener |
| KR100489031B1 (en) * | 2003-07-03 | 2005-05-17 | 기아자동차주식회사 | An apparatus for safety belt take away |
| CN202557480U (en) * | 2012-04-27 | 2012-11-28 | 中汽客汽车零部件（厦门）有限公司 | Automatic unlocking device for safety belt |
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