Explosion type pedestrian protection device

Abstract

The utility model belongs to the field of automobile pedestrian protection hinges, and discloses an explosion type pedestrian protection device which can be effectively implemented under the conditions that a reserved space enough for implementing the explosion type pedestrian protection device is not suitable for being reserved in an automobile, and a pawl or an additional part equal to the pawl is not suitable for being arranged in the automobile. Comprising a front cover connecting plate, an in-bin connecting plate and an unfolding and converging hinge rod, the in-bin connecting plate is provided with an exploder via hole and a latch hole channel, the action end of an exploder penetrates through the exploder via hole, the latch assembly comprises a latch collision head and a latch tongue piece, the latch collision head is movably arranged on the front cover connecting plate, and the latch tongue piece is movably arranged on the front cover connecting plate. The latch tongue piece has elasticity and extends to be inserted into the latch hole channel in a matched mode, and therefore the front cover connecting plate, the in-bin connecting plate and the unfolding and converging hinge rod are hinged and converged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile pedestrian protection hinge, concretely relates to a point explosion type pedestrian protection device. BACKGROUND

[0002] The automobile front cover pedestrian protection system on the market is to set the hinge chain between the fixed sheet metal part in the front cover and the vehicle body near the front window of the vehicle, and the hinge chain is lifted by the telescopic point explosion device, so that the front cover of the vehicle is lifted when the pedestrian protection is touched.

[0003] The utility model discloses a front and rear end double point explosion pedestrian protection device of car front cover, and the front end combination piece includes a three-dimensional pawl, the three-dimensional pawl has an unhooking part, one end of the three-dimensional pawl is rotationally arranged on the front end combination piece through a return spring, the unhooking part is a free end formed in the radial direction of rotation, the telescopic point explosion device corresponding to the front end combination piece corresponds to the unhooking part, the surface of the lock ring mounting plate part is formed with a lap groove that is lapped and matched with the claw hook part, so that the front end drive hinge chain converges, the lap groove is located on the surface of the lock ring mounting plate part away from the front cover of the vehicle, the unhooking part is impacted, so that the three-dimensional pawl rotates relative to the front end combination piece, so that the claw hook part is separated from the lap groove.

[0004] It can be seen that the above-mentioned three-dimensional pawl is used to make the coupling of the pawl and the unhooking part more stable when the front end combination piece converges on the lock ring mounting plate part, and after the three-dimensional pawl is impacted, the pawl is separated from the unhooking part, that is, the pawl is coupled to the front end combination piece, so that the front cover of the vehicle is lifted.

[0005] However, the above-mentioned implementation also has some disadvantages in reality. Due to the diversification of vehicle models on the market, the space reserved for installing the pedestrian protection device is different for different vehicle models, and the impulse range of the point explosion device set according to the design expectation is limited. In some scenarios, there is not enough space reserved in the vehicle for the above-mentioned implementation, and it is not suitable to set the pawl or the additional component equivalent to the pawl, so it is necessary to improve the design of the pedestrian protection device to meet the application scenarios of small reserved space and small impulse point explosion device. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a point explosion type pedestrian protection device, which can effectively implement the pedestrian protection device in scenarios where there is not enough space reserved in the vehicle for the above-mentioned implementation, and it is not suitable to set the pawl or the additional component equivalent to the pawl.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The application discloses a point explosion type pedestrian protection device, which is characterized by comprising a front cover connecting plate connected with the inner surface of a front cover, an inner warehouse connecting plate fixed in a front warehouse, and an unfolding and closing hinge rod hingedly connected with the front cover connecting plate and the inner warehouse connecting plate at two ends, wherein the inner warehouse connecting plate is provided with a point explosion device through hole and a latching hole channel, the action end of the point explosion device passes through the point explosion device through hole in the bouncing direction, the extension direction of the latching hole channel is perpendicular to the bouncing direction, the point explosion type pedestrian protection device further comprises a latching assembly, the latching assembly comprises a latching striker and a latching tongue piece, the latching striker is movably arranged on the front cover connecting plate in the bouncing direction, the latching tongue piece is elastic, the extension direction is perpendicular to the bouncing direction, and the latching tongue piece is extended and inserted into the latching hole channel, so that the front cover connecting plate, the inner warehouse connecting plate and the unfolding and closing hinge rod are hingedly closed, when the point explosion device acts, the action end of the point explosion device passes through the point explosion device through hole, the latching striker is impacted to move in the bouncing direction, when the latching striker impacts the latching tongue piece to make the latching tongue piece bend, the extension length of the latching tongue piece is shortened, so that the latching tongue piece is disengaged from the latching hole channel, and the front cover connecting plate, the inner warehouse connecting plate and the unfolding and closing hinge rod are unfolded.

[0009] Preferably, the edge of the inner warehouse connecting plate is formed into a continuous vertical first folded edge plate part and a second folded edge plate part through multiple times of bending, the point explosion device through hole is formed in the first folded edge plate part, the latching hole channel is formed in the second folded edge plate part, and the latching hole channel forms a through hole in the second folded edge plate part.

[0010] Further, the extension direction of the latching tongue piece is perpendicular to the bouncing direction, the latching tongue piece and the inner warehouse connecting plate are located at opposite two outer sides of the front cover connecting plate respectively, a striker step through hole is formed in the front cover connecting plate, the hole opening of the striker step through hole close to the inner warehouse connecting plate is larger than the hole opening of the striker step through hole close to the latching tongue piece, the latching striker is in a stepped shape and is inserted into the striker step through hole, and the smaller end of the latching striker is beyond the surface of the front cover connecting plate.

[0011] Still further, the latching tongue piece comprises an elastic tongue body part, a combination guide pin and a latching tongue head part, the elastic tongue body part is connected with the latching tongue head part through the combination guide pin, the latching tongue head part is inserted into the latching hole channel, a guide waist groove is further formed in the front cover connecting plate, the guide waist groove extends in the same direction as the latching tongue piece, the combination guide pin is inserted into the guide waist groove, and a simulated warping flange is formed at the end of the combination guide pin away from the latching tongue piece, the simulated warping flange is clamped with the combination guide pin, so that the latching tongue head part is close to the surface of the front cover connecting plate.

[0012] Still further, the edge of the latching tongue head part is formed with an insertion flange, the insertion flange extends in an arc shape in the bouncing direction, and the pin joint of the latching tongue head part and the elastic tongue body part is located close to the outside of the insertion flange in the extension direction of the latching tongue head part.

[0013] Preferably, the latch assembly further comprises a latch tongue positioning pin, the latch tongue is fixedly arranged on the front cover connecting plate through the positioning pin.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] 1. Because the point explosion type pedestrian protection device of the utility model includes a front cover connecting plate, an inner warehouse connecting plate and an expansion and convergence hinge rod, the inner warehouse connecting plate has a point explosion device through hole and a latch hole, the action end of the point explosion device passes through the point explosion device through hole in the pop-up direction, the point explosion type pedestrian protection device further includes a latch assembly, the latch assembly includes a latch striker and a latch tongue, the latch striker is movably arranged on the front cover connecting plate, the latch tongue has elasticity, the latch tongue is extended and inserted into the latch hole, thereby hinging the front cover connecting plate, the inner warehouse connecting plate and the expansion and convergence hinge rod, when the point explosion device acts, the action end of the point explosion device impacts the latch striker, the latch striker impacts the latch tongue, the latch tongue is bent, the extension length of the latch tongue is shortened, thereby disengaging the latch hole, the front cover connecting plate, the inner warehouse connecting plate and the expansion and convergence hinge rod are hinged and expanded, therefore, the structure of the utility model omits the pawl or equivalent components, thereby enabling the effective implementation of the pedestrian protection device in the scene where the space reserved in the vehicle is not enough for the above implementation, and the pawl or the additional components equivalent to the pawl are not suitable.

[0016] 2. Because the latch tongue of the utility model includes an elastic tongue body, a combination guide pin and a latch tongue head, the elastic tongue body is connected with the latch tongue head through the combination guide pin, the front cover connecting plate further forms a guide waist groove, the guide waist groove extends in the same direction with the latch tongue, the combination guide pin is inserted into the guide waist groove, and the end of the combination guide pin away from the latch tongue forms an imitation warping flange, the imitation warping flange is clamped with the combination guide pin, thereby making the latch tongue head close to the surface of the front cover connecting plate, therefore, the latch tongue of the utility model is formed by pinning two components, thereby the latch tongue is easy to realize the elastic tongue body with good elasticity and the latch tongue head with good strength and rigidity, thereby the latch tongue is easy to deform and can stably connect with the latch hole, and through the clamping effect of the imitation warping flange on the guide waist groove, the latch tongue head can only move linearly on the surface of the front cover connecting plate.

[0017] 3. Because the edge of the latch tongue head of the utility model forms an insertion flange, the insertion flange extends in the convex arc direction in the pop-up direction, the pinning place of the latch tongue head and the elastic tongue body is located near the outside of the insertion flange in the self-extension direction, therefore, when the elastic tongue body is lifted and bent by the door lock striker, the extension length of the latch tongue is shortened, the elastic tongue body produces linear sliding friction on the surface of the insertion flange. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A schematic view of the point explosion type pedestrian protection device in the converging state of the embodiment of the present application;

[0019] Figure 2 A schematic view of the point explosion type pedestrian protection device in the expanding state of the embodiment of the present application;

[0020] Figure 3 An explosion view of the point explosion type pedestrian protection device of the embodiment of the present application;

[0021] Figure 4 An explosion view of the latch assembly of the present application.

[0022] In the figure: 100, point explosion type pedestrian protection device, E, point exploder, D, pop-up direction, 10, front cover connecting plate, 11, guide waist groove, 12, head step through hole, 20, in-warehouse connecting plate, 20a, first flange plate part, 20b, second flange plate part, 20c, supporting flange, 21, point exploder via, 22, latch hole, 30, expanding and converging hinge rod, 40, latch assembly, 41, latch head, 42, latch tongue piece, 421, elastic tongue body part, 422, combined guide pin, 422a, anti-warping flange, 423, latch tongue head part, 423a, insertion flange, 43, tongue positioning pin. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the point explosion type pedestrian protection device of the present application is specifically described in the following embodiments combined with the drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0024] As shown in Figures 1 to 3 The point explosion type pedestrian protection device 100 in the present embodiment is lifted up relative to the vehicle body by the action of the point exploder E, the point exploder E is arranged on the inside of the pre-set fixed body (not shown in the drawing) of the vehicle front warehouse (not shown in the drawing), and acts towards the vehicle front cover, and the action direction of the point exploder E is taken as the pop-up direction D.

[0025] The point explosion type pedestrian protection device 100 comprises a front cover connecting plate 10, an in-warehouse connecting plate 20, an expanding and converging hinge rod 30, and a latch assembly 40.

[0026] The two ends of the spread converging hinge rod 30 are respectively hingedly connected with the front cover connecting plate 10 and the in-cabin connecting plate 20. Specifically, the front cover connecting plate 10, the spread converging hinge rod 30 and the in-cabin connecting plate 20 are sequentially hingedly connected through the ends, and when the two hinged parts of the front cover connecting plate 10, the spread converging hinge rod 30 and the in-cabin connecting plate 20 are hingedly opened, the front cover connecting plate 10, the spread converging hinge rod 30 and the in-cabin connecting plate 20 are opened in a "Z" shape.

[0027] The front cover connecting plate 10 is connected with the inner surface of the front cover of the vehicle, and specifically, the front cover connecting plate 10 is a sheet metal part.

[0028] The front cover connecting plate 10 is formed with a guide waist groove 11 and a striker step through hole 12.

[0029] Specifically, the guide waist groove 11 is formed at the edge of the front cover connecting plate 10, and the extension direction of the guide waist groove 11 is perpendicular to the pop-up direction D. In this embodiment, the guide waist groove 11 has a continuous inner groove section (not shown in the drawing) and an outer groove section (not shown in the drawing) in its own extension direction. The inner groove section is narrower, the outer groove section is wider, and the outer groove section is open to the outside.

[0030] In the extension direction of the guide waist groove 11, the striker step through hole 12 is located near the guide waist groove 11, and the aperture of the striker step through hole 12 near the in-cabin connecting plate 20 is smaller. In this embodiment, the striker step through hole 12 is located near the inner groove section.

[0031] The in-cabin connecting plate 20 is fixedly arranged in the interior of the front cabin of the vehicle, and the edge of the in-cabin connecting plate 20 is formed by multiple bending into a continuous vertical first bent edge plate part and a second bent edge plate part 20b.

[0032] The first bent edge plate part 20a is formed with a point detonator through hole 21, and the action end of the point detonator E passes through the point detonator through hole 21 along the pop-up direction D. Specifically, the point detonator through hole 21 corresponds to the mouth part of the striker step through hole 12 along the pop-up direction D, and when the point detonator E is started, the action end of the point detonator E is ejected towards the mouth part of the striker step through hole 12.

[0033] The second flange plate 20b is formed with a latch hole 22, and the latch hole 22 is formed with a through hole on the second flange plate 20b, the extension direction of the latch hole 22 is perpendicular to the pop-up direction D, specifically, the latch hole 22 is located outside the end face of the front cover connecting plate 10 away from the inner tank connecting plate 20, in this embodiment, the second flange plate 20b is formed with three parallel plate segments at the end of the extension direction of the second flange plate 20b by cutting, the two side plate segments are slightly narrower, the middle plate segment is wider, and the whole is in the shape of a "mountain", the free ends of the two side plate segments are further formed with flanges parallel to the plate body of the front cover connecting plate 10, and the flanges are used as supporting flanges 20c, when the front cover connecting plate 10, the spread and collapse hinge 30 and the inner tank connecting plate 20 are hinged and collapsed, the middle plate segment passes through the outer groove segment, and the two supporting flanges 20c are attached to the front cover connecting plate 10.

[0034] The latch assembly 40 includes a latch striker 41, a latch tongue 42 and a tongue positioning pin 43.

[0035] The latch striker 41 is stepped, and is inserted into the striker step through hole 12 in a matched manner, and the smaller end of the latch striker 41 protrudes beyond the surface of the front cover connecting plate 10, when the detonator E is actuated to pop up, the detonator E hits the smaller end of the latch striker 41, so that the latch striker 41 moves linearly along the pop-up direction.

[0036] The extension direction of the latch tongue 42 is perpendicular to the pop-up direction D, and the latch tongue 42 and the inner tank connecting plate 20 are respectively located on the opposite two outer sides of the front cover connecting plate 10, that is, the hole opening of the striker step through hole 12 close to the latch tongue 42 is closer to the hole opening of the striker step through hole 12 close to the inner tank connecting plate 20.

[0037] One end of the latch tongue 42 is fixed to the front cover connecting plate 10 through the tongue positioning pin 43, and the other end corresponds to the guide waist groove along the pop-up direction D, the latch tongue 42 has elasticity in the extension direction, and the extension direction D is perpendicular to the pop-up direction D, and the latch tongue 42 extends and is inserted into the latch hole 22 in a matched manner, so as to hinge and collapse the front cover connecting plate 10, the inner tank connecting plate 20 and the spread and collapse hinge 30.

[0038] When the detonator E is actuated, the actuation end of the detonator E passes through the detonator through hole 21, hits the smaller end of the latch striker 12, so that the latch striker 12 moves along the pop-up direction D, when the larger end of the latch striker D hits the latch tongue 42 and makes the latch tongue 42 bend, the extension length of the latch tongue 42 is shortened, so that the latch tongue 42 is disengaged from the latch hole 22, so that the front cover connecting plate 10, the inner tank connecting plate 20 and the spread and collapse hinge 30 are hinged and expanded.

[0039] As shown in Figure 4 The latch tongue 42 includes an elastic tongue body 421, a guide pin 422 and a latch tongue head 423.

[0040] The elastic tongue body 421 is terminated by combining with the guide pin 422 and the latch tongue piece 423, and the latch tongue piece 423 is inserted and matched in the latch hole 22.

[0041] An insertion flange 423a is formed on the edge of the latch tongue piece 423 towards the elastic tongue body 421, the insertion flange 423a extends along the pop-up direction D, and the pin joint of the latch tongue piece 423 and the elastic tongue body 421 is located near the outside of the insertion flange 423a along the self-extension direction, that is, the elastic tongue body 421 is inserted between the latch tongue piece 423 and the front cover connecting plate 10 through the insertion flange 423, and the surface of the elastic tongue body 421 keeps linear contact with the insertion flange 423.

[0042] The combination guide pin 422 pin-jointed with the elastic tongue body 421 and the latch tongue piece 423 is inserted and matched in the guide waist groove 11, and the end of the combination guide pin 422 away from the latch tongue piece 42 is formed with a simulated warping flange 422a, the simulated warping flange 422a is clamped with the combination guide pin 422, so that the latch tongue piece 423 is close to the surface of the front cover connecting plate 10, so that the latch tongue piece 42 extends in the same direction with the guide waist groove 11.

[0043] Specifically, since the elastic tongue body 421 also has elasticity in the pop-up direction D, and the simulated warping flange 422a makes the combination guide pin 422 unable to be separated from the matching with the guide waist groove 11, so that the latch tongue piece 423 is always close to the surface of the front cover connecting plate 10, that is, when the front cover connecting plate 10, the inner compartment connecting plate 20 and the spread convergent hinge 30 are hinged to converge, the latch tongue piece 423 is inserted and matched in the latch hole 22; when the front cover connecting plate 10, the inner compartment connecting plate 20 and the spread convergent hinge 30 are hinged to spread, the latch tongue piece 423 moves away from the latch hole 22 until the latch tongue piece 423 is separated from the matching with the latch hole 22, in this embodiment, the combination guide pin 422 is inserted and matched in the inner groove section.

[0044] The above-mentioned embodiments are preferred cases of the utility model, and are not used to limit the protection scope of the utility model, various deformations or modifications made by the ordinary skilled in the art within the scope of the appended claims without creative labor still belong to the protection scope of the patent.

Claims

1. A point detonation type pedestrian protection device, which lifts up a hood by a point detonator action, the point detonator being provided in a front compartment of a vehicle and acting toward the hood, the acting direction being set as a pop-up direction, characterized in that, The application relates to a point-explosion type pedestrian protection device. The application relates to a point-explosion type pedestrian protection device. The application relates to a point-explosion type pedestrian protection device. The application relates to a point-explosion type pedestrian protection device. The application relates to a point-explosion type pedestrian protection device. The application relates to a point-explosion type pedestrian protection device. The application relates to a point-explosion type pedestrian protection device. The application relates to a point-explosion type pedestrian protection device. 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6. The point-initiated pedestrian protection device according to claim 1, characterized in that: wherein The latch assembly further comprises a tongue positioning pin, and the latch tongue is fixed on the front cover connecting plate through the positioning pin.

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