CN114475509B - Passenger protection system of convertible car - Google Patents
Passenger protection system of convertible car Download PDFInfo
- Publication number
- CN114475509B CN114475509B CN202210133055.4A CN202210133055A CN114475509B CN 114475509 B CN114475509 B CN 114475509B CN 202210133055 A CN202210133055 A CN 202210133055A CN 114475509 B CN114475509 B CN 114475509B
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- Prior art keywords
- box
- airtight
- protection system
- passenger protection
- rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 16
- 239000003380 propellant Substances 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/06—Safety nets, transparent sheets, curtains, or the like, e.g. between occupants and glass
- B60R21/08—Safety nets, transparent sheets, curtains, or the like, e.g. between occupants and glass automatically movable from an inoperative to an operative position, e.g. in a collision
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/11—Overhead guards, e.g. against loads falling down
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0018—Roll-over
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R2021/0206—Self-supporting restraint systems, e.g. restraining arms, plates or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The application discloses a convertible passenger protection system, which relates to the field of vehicle-mounted safety and comprises a mounting box mounted on a vehicle body, wherein an extending mechanism is arranged in the mounting box and comprises: a support body having an extended position and a retracted position; the two base sleeves are arranged in parallel and are sleeved with the two inserting posts of the support body in a one-to-one correspondence manner; the self-locking assembly locks the support body at the extending and supporting position; the expansion pushing unit pushes the supporting body from the retracted position to the extended position, so that a supporting space is formed above the passenger.
Description
Technical Field
The application relates to the technical field of vehicle-mounted safety, in particular to a convertible vehicle passenger protection system.
Background
The convertible car is a car with a folding openable roof, and because the convertible car does not have a traditional car roof, a passenger protection system of the convertible car is formed by arranging a corresponding rolling-prevention frame on the car, a supporting space is formed above passengers, the rolling-prevention frame is divided into a fixed rolling-prevention frame and a telescopic rolling-prevention frame, and the telescopic rolling-prevention frame is commonly arranged in some advanced convertible cars.
The prior Chinese patent publication number is as follows: CN101130354a entitled "convertible car with two spaced roll-over protection bows and a wind deflector", comprising two spaced roll-over protection bows 2,3 and a wind deflector 9, said wind deflector having a flat structure 10 which in an active position of the wind deflector 9 opens an active surface 11 to 14 in order to ensure wind protection. According to the application, an end 38 of the flat structure 10 is fastened to an adjustable adjusting device 17, and the adjusting device 17 is designed and arranged such that the end 38 of the flat structure 10 fastened to the adjusting device can be moved from a side region of the one roll bar 2,3 to a side region of the other roll bar 2, 3.
In the prior art, the telescopic anti-rolling frame stores kinetic energy for the extension of the telescopic rod through deformation of the spring in the cavity, and elastic potential energy of the spring piece in a compressed state is converted into the extension kinetic energy of the telescopic rod through releasing the locking piece.
Disclosure of Invention
The object of the present application is to provide a convertible passenger protection system that solves the above-mentioned drawbacks of the prior art.
In order to achieve the above object, the present application provides the following technical solutions:
the utility model provides a convertible passenger protection system, includes the installation box of installing on the automobile body, the inside of installation box is equipped with the extending mechanism, the extending mechanism includes:
a support body having an extended position and a retracted position;
the two base sleeves are arranged in parallel and are sleeved with the two inserting posts of the support body in a one-to-one correspondence manner;
the self-locking assembly locks the support body at the extending and supporting position;
and an expansion pushing unit pushing the support body from the retracted position to the extended position, thereby forming a supporting space above the passenger.
Preferably, the expansion pushing unit comprises a propellant container positioned inside the base sleeve, and a gas generator fixed on the inner wall of the mounting box is fixed on the propellant container.
Preferably, the support body comprises a beam rod, and the positions, close to two ends, of the beam rod are fixed with inserted columns which are inserted into the base sleeve.
Preferably, the self-locking assembly comprises a plurality of placing grooves formed in the inner wall of the base sleeve, the inside of the placing grooves is provided with ratchet blocks in an adapting mode, the ratchet blocks are connected with the bottom wall of the placing grooves through force application pieces, and the ratchet blocks are in unidirectional engagement with a plurality of protruding rings fixed on the outer sides of the inserting columns.
Preferably, the two sides of the beam rod are provided with one-way ratchet grooves, two ends of the groove body of each one-way ratchet groove are movably provided with sliding clamping blocks, the sliding clamping blocks can slide towards the middle part of each one-way ratchet groove, each sliding clamping block is movably hinged with a supporting rod, and one end of each supporting rod, which is far away from the sliding clamping block, is movably hinged with the base sleeve.
Preferably, one end of each sliding clamping block is connected with the groove end of the one-way ratchet groove through a tension spring.
Preferably, the force application piece comprises a through hole formed in the bottom of the placing groove, a wedge block fixed with the ratchet block is movably inserted in the through hole, a lantern ring movably sleeved on the outer side of the base sleeve is arranged on the outer side of the through hole, a groove is formed in the inner wall of the lantern ring, a rotating roller is rotatably mounted on the notch of the groove, the inclined surface of the wedge block is located on a linear movement track line of the rotating roller, and a hinged support capable of being hinged with the supporting rod is fixed on the outer side of the lantern ring.
Preferably, the bottom end of the inserted column is fixed with a plugging block, the side surface of the plugging block is in sliding contact with the inner wall of the base sleeve, and the bottom of the plugging block is a round concave surface.
Preferably, the included angle between the support rod and the beam rod ranges from degree to degree.
Preferably, the two support rods positioned on the same side of the cross beam rod are distributed in a cross manner.
In the technical scheme, the supporting body has sufficient pushing power by arranging the mounting box, the supporting body, the base sleeve, the self-locking component and the expansion pushing unit and utilizing the instant pushing force generated by the expansion pushing unit to the supporting body, so that the problem that kinetic energy for pushing the telescopic rod is reduced is avoided, the supporting rod is ensured to rapidly extend to the extending position, the supporting rod has good extending speed, and the supporting rod can be popped out instantly, so that a supporting space is formed above a passenger, the passenger is prevented from being severely extruded when the vehicle is overturned, and the timely protection effect is achieved for the passenger.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic top view of a convertible occupant protection system of the present application mounted to a vehicle body;
FIG. 2 is a schematic cross-sectional view of the mounting case of FIG. 1 at A-A in accordance with the present application;
FIG. 3 is a schematic view of a convertible occupant protection system of the present application with a support in a extended position;
FIG. 4 is an enlarged schematic view of the application at B in FIG. 3;
FIG. 5 is a schematic view of a force application member of another embodiment of a convertible occupant protection system of the present application;
FIG. 6 is a schematic cross-sectional view of the seal box and air seal box of the convertible passenger protection system of the present application on a cross beam;
FIG. 7 is a schematic top cross-sectional view of a seal box of the convertible occupant protection system of the present application;
FIG. 8 is a cross-sectional schematic view of a sleeve of the convertible occupant protection system of the present application;
FIG. 9 is a schematic view of a communication unit of another embodiment of a convertible occupant protection system of the present application;
FIG. 10 is a schematic illustration of the internal structural changes of the communication unit of the convertible occupant protection system of the present application in different orientations.
Reference numerals illustrate:
1. a mounting box; 2. an extension mechanism; 3. a support body; 3.1, a beam rod; 3.2, inserting a column; 3.3, plugging blocks; 3.11, one-way ratchet grooves; 3.12, sliding a clamping block; 3.13, supporting rods; 3.14, a tension spring; 3.2, inserting a column; 4. a base sleeve; 5. a self-locking assembly; 5.1, placing grooves; 5.2, a ratchet block; 5.3, force application piece; 5.31, through-hole; 5.32, wedge blocks; 5.33, collar; 5.34, grooves; 5.35, rotating rollers; 5.36, a hinged support; 5.4, projecting ring; 6. an expansion pushing unit; 6.1, propellant container; 6.2, a gas generator; 7. a seal box; 7.1, dividing plate; 7.2, a side extension rod; 7.21, sleeve; 7.22, a coil spring; 7.23, inclined bottom grooves; 7.24, branch strips; 7.3, limiting ropes; 7.4, a rapid propulsion device; 8. an airtight box; 8.1, a gland plate; 8.2, pressing plate; 8.3, connecting columns; 8.4, a communication unit; 8.41, connecting blocks; 8.42, vent holes; 8.43, inclined blind holes; 8.44, a baffle; 8.45, solid rolling ball; 8.46, limiting rings; 9. a helical groove.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 10, an occupant protection system for a convertible vehicle according to an embodiment of the present application includes a mounting box 1 mounted on a vehicle body, an extension mechanism 2 is disposed in the mounting box 1, and the extension mechanism 2 includes:
a support body 3 having an extended position and a retracted position;
the two base sleeves 4 are arranged in parallel, and the two base sleeves 4 are sleeved with the two inserting posts 3.2 of the support body 3 in a one-to-one correspondence manner;
the self-locking component 5 locks the support body 3 at the extending and supporting position;
an expansion pushing unit 6 that pushes the support body 3 from the retracted position to the extended position, thereby forming a supporting space above the passenger.
Specifically, the mounting box 1 is a top opening box, its opening direction upwards installs on the automobile body, the mechanism 2 is located the inside of mounting box 1, the direction of movement of supporter 3 is along the vertical direction of mounting box 1, stretch branch position is the one end of supporter 3 and stretches out in the top of mounting box 1, the position of shrinking is that supporter 3 is located the inside of mounting box 1 and supporter 3 tip and mounting box 1 top looks parallel and level, supporter 3 is the body of post, base sleeve 4 is circular stereoplasm body, the side of base sleeve 4 is fixed with the inner wall of mounting box 1, self-locking subassembly 5 includes the inserted bar with the elasticity of base sleeve 4, the inserted bar is pegged graft with the jack on the supporter 3 of stretching branch position, inflation pushing unit 6 is the power thrust device in the safe limit, for example, inflation pushing unit 6 is the gas generator that is located the inside of base sleeve 4, gas generator's type and trigger mode are the same with the gas generator in the air bag, no longer described, make the rapid increase in the base sleeve 4 after gas generator produces gas, the gas take place rapidly, promote the supporter 3 to take place under the base sleeve 4 elasticity, the jack looks grafting, thereby the pressure is stretched outside the position by the support 3, the outside of stretching outside position, the passenger is formed outside the pressure, the outside the position is stretched outside by the support position, and the passenger is stretched outside.
Under the condition of normal use, support body 3 is located the hidden position, when the condition of turning over appears, the thrust that gas generator triggered back produced makes support body 3 from hidden position promote to stretching the position rapidly, and lock support body 3 to stretching the position through self-locking subassembly 5, whole process is accomplished in the twinkling of an eye, moreover, have sufficient thrust power to support body 3, avoid being used for the kinetic energy that the telescopic link promoted to take place to subtract the problem, ensure that bracing piece 3 can stretch out to stretching the position rapidly, and bracing piece 3 has good speed of stretching out, thereby form the support space above the passenger, thereby be favorable to preventing that the passenger from receiving serious extrusion when the vehicle overturns, play timely protective effect to the passenger.
As a preferred technical scheme of the embodiment, the expansion pushing unit 6 includes a propellant container 6.1 located inside the base sleeve 4, the propellant container 6.1 is a cylinder, a gas generating agent is contained inside the cylinder, the outer side surface of the cylinder is attached to the inner wall of the base sleeve 4, the cylinder opening direction faces the supporting body 3, the cylinder opening of the cylinder is covered with a sealing film to prevent the gas generating agent of the cylinder from being wetted and avoid volatilization of the gas generating agent, the tightness of the propellant container 6.1 is improved, a gas generator 6.2 fixed to the inner wall of the mounting box 1 is fixed on the propellant container 6.1, the gas generator 6.2 and the gas generating agent are the same principle products as the gas generator and the gas generating agent in the automobile safety air bag, and further, an igniter is arranged on the propellant container 6.1, wherein the igniter and the igniter in the automobile safety air bag are the same type of device and are not repeated.
As the preferred technical scheme of this embodiment, support body 3 is including crossbeam pole 3.1, and crossbeam pole 3.1 is close to both ends position and all is fixed mutually with the spliced pole 3.2 that base cover 4 pegged graft mutually, and crossbeam pole 3.1 is parallel with the open end top of mounting box 1, and the axial lead of spliced pole 3.2 all handles mutually with the axial lead of crossbeam pole 3.1, and two spliced poles 3.2 all are located the same one side of crossbeam pole 3.1.
Further, a sealing box 7 is fixed at the top of the beam rod 3.1, the length direction line of the beam rod 3.1 is perpendicular to the length direction line of the vehicle body, the contour line formed by the side surfaces of the airtight box 8 is completely flush with the contour line formed by the outer side surfaces of the beam rod 3.1, a partition plate 7.1 is fixed on the middle branching line of the width direction of the box body of the sealing box 7, the partition plate 7.1 divides the box body of the sealing box 7 into two airtight spaces which are symmetrical and equal and are mutually isolated, side extension rods 7.2 are respectively arranged in the two airtight spaces, the side extension rods 7.2 are hard straight rods, the side extension rods 7.2 are matched with the airtight spaces on the outer side surfaces, the side extension rods 7.2 in one airtight space can extend out from one end of the airtight box 8, the side extension rods 7.2 in the other airtight space can extend out from the other end of the airtight box 8, one end of each side rod 7.2 extending into the airtight space is connected with the sealing box 7 through a limiting rope 7.3, the limiting ropes 7.3 cannot be elastically deformed when being stretched, when the limiting ropes 7.3 are in a straightening state when being stretched, at the moment, one end of each side extension rod 7.2 extending into the airtight space is still located in the airtight space, preferably, the extending length of each side extension rod 7.2 is two thirds of the length of each side extension rod 7.2, the ends, extending into the airtight space, of the two airtight spaces, of each side extension rod 7.2 are fixedly provided with a rapid pushing device 7.4, the rapid pushing devices 7.4 and the expansion pushing units 6 are of the same structure, and in use, when the vehicle body has a vehicle turning tendency, the pushing force generated by the rapid pushing devices 7.4 at the moment enables the side extension rods 7.2 at the position to perform axial linear motion, the side extension rods 7.2 extend out of the sealing box 7, the extending width of the vehicle body is improved, and the vehicle body is prevented from overturning, and the vehicle body is protected against passengers.
Further, the top of the sealing box 7 is fixed with an airtight box 8, the contour line formed by the side surfaces of the airtight box 8 is completely flush with the contour line formed by the outer side surfaces of the sealing box 7, the top of the airtight box 8 is adaptively covered with a gland plate 8.1, a plurality of air outlets are formed in the top and the side surfaces of the gland plate 8.1, the inside of the airtight box 8 is provided with a pressing plate 8.2, the pressing plate 8.2 compresses air in the airtight box 8 in the vertical moving process, the pressing plate 8.2 is connected with the gland plate 8.1 through a plurality of connecting columns 8.3 which movably penetrate through the top of the airtight box 8, when the gland plate 8.1 moves towards the direction of the airtight box 8, the pressing plate 8.2 compresses the air in the airtight box 8, the airtight box 8 is communicated with two airtight spaces through a communication unit 8.4, the two ends of the pipe are respectively flush with the airtight box 8 and the inner wall surfaces of the sealing box 7, the communication unit 8.4 is located at one end of the side extension rod 7.2 extending into the airtight space in the airtight space, so that in actual use, when the compressed air flow in the airtight box 8 quickly floods into the corresponding airtight space, the impact force generated by the air flow enables the side extension rod 7.2 to have the power of the sealing box 7, on the other hand, the effect that the side extension rod 7.2 still can extend out of the sealing box 7 under the condition that the quick pushing device 7.4 fails can be achieved, further guarantee is provided for the side extension rod 7.2 to extend out of the sealing box 7, and it is further stated that when the vehicle body is turned 180 degrees and placed on the ground, the pressure cover plate 8.1 moves towards the direction of the airtight box 8 under the gravity extrusion of the vehicle body, further, the extrusion rod can be installed at the side surface of the sealing box 7, when the vehicle body is turned 90 degrees and the wedge surface of the extrusion rod is extruded with the pressure cover plate 8.1, so that the cover plate 8.1 moves towards the airtight box 8.
Further, the airtight box 8 and the two airtight spaces are respectively communicated by the communication unit 8.4 and are respectively a first communication unit and a second communication unit, the first communication unit and the second communication unit are of the same type, referring to fig. 9 in the specification and fig. 10 in the specification, the communication unit 8.4 comprises a connecting block 8.41 fixed between the airtight box 8 and the sealing box 7, the connecting block 8.41 is inlaid and fixed on the airtight box 8 and the sealing box 7, a vent hole 8.42 communicated with the airtight box 8 and the sealing box 7 is arranged on the connecting block 8.41, an inclined blind hole 8.43 is arranged on the inner wall of the vent hole 8.42 close to one side of a branching line in the length of the airtight box 8, the opening direction line direction of the inclined blind hole 8.43 is in an inclined upward direction, a baffle 8.44 is fixed at the upper edge of the opening end of the inclined blind hole 8.43, the end of the baffle 8.44 is positioned at the port of the opening end of the inclined blind hole 8.43, the inside of the inclined blind hole 8.43 is provided with a solid rolling ball 8.45, the inside of the vent hole 8.42 is fixedly provided with two limiting rings 8.46, the two limiting rings 8.46 are respectively close to two ends of the vent hole 8.42, the solid rolling ball 8.45 cannot penetrate through the limiting rings 8.46, the ball diameter value of the solid rolling ball 8.45 is 1.5 units, the diameter value of the inclined blind hole 8.43 is 5 units, the maximum length of the baffle 8.44 is 3 units, the inner diameter value of the limiting ring 8.46 is 1 unit, in actual use, when the connecting block 8.41 turns on one side along with the vehicle body, at the moment, the solid rolling ball 8.45 in the first connecting unit slides into the vent hole 8.42 along the inclined blind hole 8.43 under the action of gravity, then the solid rolling ball 8.45 in the vent hole 8.42 carries out blocking on the limiting rings 8.46, so that air flow cannot pass through the first connecting unit, the arrangement direction of the inclined blind holes 8.43 in the second communication unit on the vent holes 8.42 is opposite to the arrangement direction of the first communication unit on the vent holes 8.42, the solid rolling balls 8.45 in the second communication unit move along the inner walls of the inclined blind holes 8.43 fixed with the baffle plates 8.44 and finally stay in the inclined blind holes 8.43 under the blocking of the baffle plates 8.44, so that the second communication unit still keeps the ventilation state, and at the moment, more compressed gas in the airtight box 8 enters an airtight space, the side stretching rods 7.2 in the airtight space are further ensured to stretch out, the stretched-out side faces are the sides which are about to be overturned and extruded, and the side stretching rods 7.2 after the side stretching can effectively prevent the vehicle body from rolling continuously.
Further, sleeve 7.21 has been cup jointed in the activity of the tip of side extension rod 7.2, be connected through coil spring 7.22 between sleeve 7.21 and the tip of side extension rod 7.2, be connected through the connecting wire between sleeve 7.21 and the tip of side extension rod 7.2, avoid sleeve 7.21 and side extension rod 7.2 to break away from completely, the multi-exhaust rectangular mouth has been seted up to sleeve 7.21 tip, a plurality of inclined bottom groove 7.23 have been seted up to sleeve 7.21's tip lateral surface, the contained angle between inclined bottom groove 7.23's tank bottom and the axial lead of side extension rod 7.2 is 30 degrees, the inside movable joint in each inclined bottom groove 7.23 has branch 7.24, the movable hinge joint between branch 7.24 and the side extension rod 7.2, the swing range of branch 7.24 and side extension rod 7.2 is 30 degrees to 80 degrees this moment, in actual use, after the tip of side extension rod 7.2 receives the striking, the inclined bottom groove 7.24 pushes away the branch 7.21, the stability of extension rod 2 has taken place under the effect of side extension rod 7.2, thereby the stability of extension rod is improved.
Preferably, the airtight space is provided with a spiral groove 9 surrounding the side extension rod 7.2, and during the extension of the side extension rod 7.2 from the sealing box 7, the side extension rod 7.2 axially rotates under the action of the spiral groove, so that the side extension rod 7.2 is maintained to have a stable straight-line extension state.
As a preferred technical scheme of the embodiment, the self-locking component 5 comprises a plurality of placing grooves 5.1 which are formed in the inner wall of the base sleeve 4, a ratchet block 5.2 is adaptively arranged in the placing grooves 5.1, each ratchet block 5.2 comprises a rectangular block which is in adaptive clamping connection with the placing groove 5.1, a plurality of movable wheels which are in contact with the groove wall of the placing groove 5.1 are movably arranged on each rectangular block, a rack plate is fixed on one side of the rectangular block, which faces the inserting column 3.2, the length direction of a rack on the rack plate is perpendicular to the axial direction of the inserting column 3.2, one side of the inserting column 3.2, which faces the rack plate, is a plane part, so that the largest contact area is formed when the rack plate contacts, the cross section of the rack on the rack plate is a right triangle, one right-angle side of the rack is perpendicular to the rectangular block, the direction of a vertical line of an inclined plane of the rack is inclined downwards, each ratchet block 5.2 is connected with the groove bottom wall of the placing groove 5.1 through a force application piece 5.3, the ratchet block 5.2 is in unidirectional engagement with a plurality of protruding rings 5.4 fixed on the outer side of the plunger 3.2, one side edge of the protruding rings 5.4, facing the inclined plane of the rack, is a circular angle edge, the force application piece 5.3 comprises a plurality of return springs and limiting lines which are connected between the placing groove 5.1 and the ratchet block 5.2, the limiting lines prevent the ratchet block 5.2 from being completely separated from the placing groove 5.1, in the actual use process, when the plunger 3.2 moves to an extending position in a retracting position, the protruding rings 5.4 move along with the plunger 3.2, the protruding rings 5.4 slide and squeeze with the inclined plane of the rack, so that the ratchet block 5.2 moves towards the inside of the placing groove 5.1, the return springs are in a compressed state, after the plunger 3.2 stops moving, the ratchet block 5.2 is meshed with the protruding rings 5.4 through the rack on the rack plate, the protruding rings 5.4 are contacted with the circular angle edges of the rack, so that the plunger 3.2 can only move unidirectionally, the reset movement cannot be performed.
As a technical solution of another embodiment of the present embodiment, the unidirectional locking engagement relationship between the self-locking component 5 and the plunger 3.2 is the same as the unidirectional pawl locking structure, and is not repeated.
As a preferred technical scheme of this embodiment, unidirectional ratchet grooves 3.11 are all provided on two sides of the beam rod 3.1, sliding clamping blocks 3.12 are movably mounted on two ends of the groove body of each unidirectional ratchet groove 3.11, the sliding clamping blocks 3.12 can slide towards the middle of the unidirectional ratchet groove 3.11, supporting rods 3.13 are movably hinged on the sliding clamping blocks 3.12, one end of each supporting rod 3.13, which is far away from the sliding clamping block 3.12, is movably hinged with the base sleeve 4, and further, a clamping structure between the sliding clamping blocks 3.12 and the unidirectional ratchet grooves 3.11 is identical to a unidirectional pawl locking structure in structure, and is not repeated.
As the technical scheme of another embodiment of the present embodiment, the unidirectional ratchet groove 3.11 includes a strip-shaped groove body, the length direction of the strip-shaped groove body is parallel to the beam rod 3.1, a plurality of ratchets are provided in the groove body of the unidirectional ratchet groove 3.11, the sliding clamping block 3.12 is a rectangular block body capable of sliding along the unidirectional ratchet groove 3.11, a shifting piece meshed with the ratchets in one way is movably hinged on the sliding clamping block 3.12, the shifting piece always keeps a trend of moving towards the ratchets under the action of a torsion spring, in actual use, when the beam rod 3.1 moves from the retracted position to the extended position, at this time, the sliding clamping block 3.12 can slide towards the middle position direction of the beam rod 3.1 along the unidirectional ratchet groove 3.11, and it is required to be noted that the sliding clamping block 3.12 cannot move towards the end direction of the beam rod 3.1 along the unidirectional ratchet groove 3.11,
as a preferred technical solution of this embodiment, one end of each sliding fixture block 3.12 is connected with the groove end of the unidirectional ratchet groove 3.11 through the tension spring 3.14, so that in the sliding process of the sliding fixture block 3.12 along the unidirectional ratchet groove 3.11 towards the middle position direction of the beam rod 3.1, the tension spring 3.14 is in a stretched state at this moment, so as to increase the moving resistance of the sliding fixture block 3.12, and it is required to specifically specify that the tension spring 3.14 is in a bent state in the whole in the initial state, and when the tension spring 3.14 moves a certain distance in the unidirectional ratchet groove 3.11 at the sliding fixture block 3.12, the tension spring 3.14 is in a natural extension state at this moment, so that in the early stage of the movement of the beam rod 3.1 from the retracted position to the extended position, the resistance influence of the stretching deformation of the tension spring 3.14 on the initial movement of the beam rod 3.1 is avoided.
As the preferred technical scheme of this embodiment, the force application piece 5.3 includes the through-hole 5.31 that opens in the standing groove 5.1 tank bottom, the movable grafting has wedge 5.32 that is fixed mutually with the ratchet piece 5.2 in the through-hole 5.31, the lantern ring 5.33 that is equipped with the activity and cup joints in the base sleeve 4 outside in the through-hole 5.31 outside, the recess 5.34 has been seted up to the inner wall of lantern ring 5.33, the rotor 5.35 is installed in the notch rotation of recess 5.34, the inclined plane of wedge 5.32 is located the straight line of rotor 5.35, the outside of lantern ring 5.33 is fixed with the free bearing 5.36 that can hinge with bracing piece 3.13, free bearing 5.36 and bracing piece 3.13 movable hinge, when free bearing 5.36 receives the downward pressure of bracing piece 3.13, the one side that the base sleeve 4 is close to and contact with rotor 5.35 moving the track line at this moment is the plane portion, rotor 5.35 moves down along the base sleeve 4 outside, simultaneously, the inclined plane portion that rotor 5.35 has moved down along the rotor 5.35 in the base sleeve 4 outside, the time when wedge 5.35 has reduced the inclined plane and the wedge 5.3.3 that the wedge 2.3 has realized the opposite to the axial direction of wedge 2.3, the wedge 2.2.32 when the wedge 2.3 is more closely opposite to the axial direction of wedge 5.3, the wedge 2.2 when the wedge 2 is realized to the wedge 2.
As the preferred technical scheme of this embodiment, the bottom mounting of spliced pole 3.2 has shutoff piece 3.3, the bottom of shutoff piece 3.3 is the round concave surface, the side face of shutoff piece 3.3 and the inner wall sliding contact of base cover 4, concretely, shutoff piece 3.3 is including the hard piece with the bottom mounting of spliced pole 3.2, one side of the nozzle of hard piece orientation cylinder is fixed with flexible rubber slab, the outside panel of flexible rubber slab is the round concave surface, be fixed with the sealing washer on the round concave surface of shutoff piece 3.3, sealing washer and round concave surface are concentric circle arrangement, sealing washer and the nozzle looks adaptation of cylinder, in the in-service use, supporter 3 is in the time of contracting and hiding the position, shutoff piece 3.3 extrudees with the nozzle tip mutually, make nozzle tip be in airtight shutoff state, the round concave surface receives the extrusion simultaneously and takes place the deformation, make cylinder inside pressure be less than outside pressure, the sealing effect of further improvement cylinder, keep the gas generator in the cylinder in dry environment.
As the preferred technical scheme of this embodiment, the angle degree scope between bracing piece 3.13 and crossbeam pole 3.1 is 3 degrees to 80 degrees, two bracing pieces 3.13 that are located crossbeam pole 3.1 and are the same one side are the cross distribution, in the in-process that crossbeam pole 3.1 moved to stretching position in the position of contracting, bracing piece 3.13 is under the pulling action of crossbeam pole 3.1 this moment, the contained angle between bracing piece 3.13 and crossbeam pole 3.1 becomes big this moment, preferably, when the contained angle between bracing piece 3.13 and crossbeam pole 3.1 is 45 degrees, bracing piece 3.13 has good supporting role to crossbeam pole 3.1 this moment, thereby further strengthened the anti-deformation ability of supporter 3, improve more firm supporting space for the passenger.
While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.
Claims (8)
1. The utility model provides a convertible passenger protection system, includes installation box (1) of installing on the automobile body, the rear of seat on the automobile body is installed to the box body of installation box (1), a serial communication port, the inside of installation box (1) is equipped with extension mechanism (2), extension mechanism (2) include:
a support body (3) having an extended position and a retracted position;
the two base sleeves (4) are arranged in parallel, and the two base sleeves (4) are sleeved with the two inserting posts (3.2) of the support body (3) in a one-to-one correspondence manner;
the self-locking assembly (5) locks the support body (3) at the extending and supporting position;
an expansion pushing unit (6) that pushes the support body (3) from the retracted position to the extended position, thereby forming a support space above the passenger;
the support body (3) comprises a beam rod (3.1), and the positions, close to the two ends, of the beam rod (3.1) are fixed with a plug post (3.2) which is inserted into the base sleeve (4);
the top of the beam rod (3.1) is fixedly provided with a sealing box (7), a partition plate (7.1) is fixed on a middle branching line in the width direction of the box body of the sealing box (7), the box body of the sealing box (7) is divided into two symmetrical and equal airtight spaces which are mutually isolated by the partition plate (7.1), side extension rods (7.2) are arranged in the two airtight spaces, one end of each side extension rod (7.2) extending into the airtight space is connected with the sealing box (7) through a limiting rope (7.3), and one end of the two airtight spaces, which is positioned in the side extension rod (7.2) and extends into the airtight space, is fixedly provided with a quick propulsion device (7.4);
the top of seal box (7) is fixed with airtight case (8), the top adaptation cover of airtight case (8) has connect gland plate (8.1), a plurality of air exits have all been seted up at the top and the side of gland plate (8.1), airtight case (8) inside be equipped with clamp plate (8.2), clamp plate (8.2) make airtight case (8) inside air compress at vertical direction removal in-process, be connected through a plurality of activities between clamp plate (8.2) and gland plate (8.1) in even post (8.3) at airtight case (8) top, all be linked together through intercommunication unit (8.4) between airtight case (8) and two airtight spaces.
2. A convertible passenger protection system according to claim 1, characterized in that the expansion propulsion unit (6) comprises a propellant container (6.1) inside the base sleeve (4), the propellant container (6.1) being fastened with a gas generator (6.2) fastened to the inner wall of the mounting box (1).
3. The convertible passenger protection system according to claim 1, wherein the self-locking component (5) comprises a plurality of placing grooves (5.1) formed in the inner wall of the base sleeve (4), ratchet blocks (5.2) are installed in the placing grooves (5.1) in an adapting mode, the ratchet blocks (5.2) are connected with the groove bottom wall of the placing grooves (5.1) through force application pieces (5.3), and the ratchet blocks (5.2) are in unidirectional engagement with a plurality of protruding rings (5.4) fixed on the outer side of the inserting columns (3.2).
4. The convertible passenger protection system according to claim 3, wherein the two sides of the beam rod (3.1) are respectively provided with a one-way ratchet groove (3.11), two ends of a groove body of each one-way ratchet groove (3.11) are respectively and movably provided with a sliding clamping block (3.12), the sliding clamping blocks (3.12) can slide towards the middle part of each one-way ratchet groove (3.11), each sliding clamping block (3.12) is respectively and movably hinged with a supporting rod (3.13), and one end, far away from the sliding clamping block (3.12), of each supporting rod (3.13) is movably hinged with the base sleeve (4).
5. A convertible passenger protection system according to claim 4, characterized in that one end of each slide latch (3.12) is connected to the slot end of the one-way ratchet slot (3.11) by a tension spring (3.14).
6. The convertible passenger protection system according to claim 1, wherein a plugging block (3.3) is fixed at the bottom end of the plug post (3.2), the side surface of the plugging block (3.3) is in sliding contact with the inner wall of the base sleeve (4), and the bottom of the plugging block (3.3) is a round concave surface.
7. A convertible passenger protection system according to claim 4, characterized in that the angle between the support bar (3.13) and the cross bar (3.1) is in the range of 3 to 80 degrees.
8. A convertible passenger protection system as claimed in claim 4, characterized in that two of the support bars (3.13) on the same side of the beam bar (3.1) are arranged in a staggered manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210133055.4A CN114475509B (en) | 2022-02-14 | 2022-02-14 | Passenger protection system of convertible car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210133055.4A CN114475509B (en) | 2022-02-14 | 2022-02-14 | Passenger protection system of convertible car |
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| CN114475509B true CN114475509B (en) | 2023-11-14 |
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| CN202210133055.4A Active CN114475509B (en) | 2022-02-14 | 2022-02-14 | Passenger protection system of convertible car |
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| CN114475509A (en) | 2022-05-13 |
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