CN214267547U - Lock head assembly of safety belt mortise lock, safety belt mortise lock system and vehicle - Google Patents

Abstract

The present disclosure relates to a lock assembly of a safety belt latch, a safety belt latch system, and a vehicle, the lock assembly including a lock, a fixing bracket, a connecting member, and a stopping member, the lock having a housing, the fixing bracket including a lower end and an upper end opposite to each other along a length direction thereof, the lower end being rotatably connected to a seat, the upper end being inserted into the housing, the connecting member and the stopping member being sequentially disposed at intervals in the housing in a direction extending from the lower end toward the upper end, and the connecting member and the stopping member being fixed on the fixing bracket, the connecting member being fixedly connected to the housing, wherein the connecting member is configured to be broken under a preset collision condition to allow the housing to move upward with respect to the fixing bracket and to be stopped by the stopping member after moving a preset distance. Therefore, the lock head assembly of the safety belt mortise lock can avoid the situation that the shell of the mortise lock is extruded and deformed with a seat when a vehicle collides, and the unlocking of the mortise lock after the collision is influenced.

Description

Lock head assembly of safety belt mortise lock, safety belt mortise lock system and vehicle

Technical Field

The utility model relates to a vehicle safety belt hasp technical field specifically relates to a tapered end assembly, safety belt mortise lock system and vehicle of safety belt mortise lock.

Background

When collision and dangerous conditions occur, the safety belt can play a role in restraining the displacement of the passengers and buffering. Among the prior art, the tapered end of safety belt mortise lock passes through metal support to be fixed on the seat, when bumping, along with the human body moves forward, the safety belt is tensile forward, metal support rotates forward thereupon, rotates the in-process, the tapered end of mortise lock can with the contact extrusion of seat sideboard, lead to the tapered end shell to take place to deform, and then lead to misplacing between shell and the inner structure to lead to can't extracting the spring bolt of mortise lock from the tapered end smoothly, can't unblock safety belt smoothly promptly, and then influence the rescue.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tapered end assembly of safety belt mortise lock, this tapered end assembly can avoid when the vehicle bumps the casing of mortise lock and seat extrusion deformation, influences the unblock of collision back mortise lock.

The safety belt mortise lock system can prevent a lock head and a seat from being extruded to deform when a vehicle collides, and is convenient for unlocking and rescuing.

The purpose of this disclosure is to provide a vehicle, this vehicle can unblock the safety belt mortise lock smoothly after the emergence collision, convenient rescue.

In order to achieve the above objects, the present disclosure provides a lock head assembly of a seatbelt latch, the lock head assembly including a lock catch, a fixing bracket, a connecting member, and a stopper member, the buckle has a housing, the fixing bracket includes a lower end rotatably coupled to the seat and an upper end inserted into the housing, the lower end and the upper end being opposite to each other in a length direction thereof, the connecting member and the stopper member are sequentially provided at intervals in the housing in a direction extending from the lower end toward the upper end, the connecting component and the stopping component are fixed on the fixed bracket, the connecting component is fixedly connected with the shell, wherein the connecting member is configured to break under a preset collision condition to allow the housing to move upward relative to the fixed bracket and to be stopped by the stopper member after moving a preset distance.

Optionally, the lock cylinder assembly comprises a cutting device comprising a cutter for cutting the connecting member under the preset collision condition.

Optionally, a weakening groove is formed in a portion of the connecting member corresponding to the cutting knife.

Optionally, the cutting device comprises a power unit which drives the cutter to move towards the connecting member under the preset collision condition and provides momentum for the cutter to cut off the connecting member.

Optionally, the power unit is configured as a gunpowder type explosive drive.

Optionally, the cutting device comprises a guide structure configured with a linear guide channel extending parallel to the length direction of the fixing bracket, the power unit and the cutter being mounted in the linear guide channel.

Optionally, the cutting device comprises a protective cover, the guide structure is fixedly arranged in the protective cover, and a first avoidance port allowing the cutter to pass through is arranged at the bottom of the protective cover.

Optionally, cutting device set firmly in the fixed bolster, and be located the below of backstop component, be provided with the second on the diapire of casing and dodge the mouth, the second dodges the mouth and allows cutting device with the fixed bolster passes, connecting element with the backstop component all along with fixed bolster looks vertically transversely extends, connecting element's both ends overlap joint be in on the diapire, the both ends of backstop component can by the diapire backstop, cutting device includes that two are installed the fixed bolster both sides the cutter.

According to a second aspect of the present disclosure, a seat belt latch system is provided, which includes a contact switch, a vehicle collision sensor, a central controller, and a lock cylinder assembly of the seat belt latch, where the contact switch is fixedly connected to an outer side of the housing and is configured to detect contact between the housing and a seat side plate in the lock cylinder assembly, the vehicle collision sensor is configured to detect a collision of a vehicle, where the preset collision condition is that the housing is in contact with the seat edge and the vehicle collides, and the central controller is electrically connected to the contact switch, the vehicle collision sensor, and the lock cylinder assembly and triggers a connecting member in the lock cylinder assembly to break when the preset collision condition is satisfied.

According to a third aspect of the present disclosure, a vehicle is provided that includes the seatbelt latch system described above.

Through the technical scheme, the casing of hasp passes through connecting element fixed mounting in the upper end of fixed bolster, when not bumping, the fixed bolster keeps at normal position, the interval has between casing and the seat sideboard, when bumping, be used for retraining human safety belt forward motion, the fixed bolster rotates thereupon, the casing follows the upper end forward motion of fixed bolster, and contact with the seat sideboard, thereby satisfy and predetermine the collision condition, the connecting element breaks, be connected between casing and the fixed bolster has been cut off, the casing moves up for the fixed bolster and after having moved and predetermine distance backstop component backstop, can make the casing keep away from the seat sideboard like this, avoid casing and seat sideboard to extrude each other and take place to warp and influence the unblock, the casing still is connected with the fixed bolster simultaneously, satisfy the restraint function of safety belt to the human body. Therefore, the lock head assembly of the safety belt mortise lock can avoid the situation that the unlocking of the mortise lock after collision is influenced due to the fact that the shell of the mortise lock is extruded and deformed with a seat when a vehicle collides; on the basis, the safety belt mortise lock system provided by the disclosure can prevent the lock head and the seat from being extruded to deform when a vehicle collides, so that unlocking and rescue are facilitated; the vehicle provided by the disclosure can smoothly unlock the safety belt mortise lock after collision, and is convenient for rescue.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic view of a prior art seat belt latch cylinder assembly installed in a seat in the absence of a collision;

FIG. 2 is a schematic view of a prior art seat belt latch cylinder assembly relative to a seat after a collision;

FIG. 3 is a schematic view of the internal structure of a lock cylinder assembly of a seatbelt buckle provided in accordance with some embodiments of the present disclosure;

FIG. 4 is a perspective view of the internal structure of a lock cylinder assembly of a seat belt latch according to some embodiments of the present disclosure;

FIG. 5 is a front view of a lock cylinder assembly of a seat belt latch provided in accordance with some embodiments of the present disclosure;

fig. 6 is a flow chart of a seat belt latch system provided in accordance with some embodiments of the present disclosure.

Description of the reference numerals

1-shell, 11-second avoidance port, 2-fixed support, 21-lower end, 22-upper end,

3-connecting member, 31-weakening groove, 4-stopping member,

5-cutting device, 51-cutter, 52-power unit, 53-guide structure,

54-protective cover, 541-first avoidance opening, 6-contact switch, 7-seat side plate.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, without being stated to the contrary, the use of the directional words such as "up and down" means up and down in the direction of gravity, "front and rear" is defined based on the vehicle in which the head is located at the front and the tail is located at the rear. The terms "first," "second," and the like, as used herein are intended to distinguish one element from another, and are not necessarily sequential or significant. In the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained.

According to some embodiments of the present disclosure, there is provided a cylinder assembly of a seatbelt lock, as shown in fig. 3 and 4, the cylinder assembly including a lock having a housing 1, a fixing bracket 2 including a lower end 21 and an upper end 22 opposite to each other in a length direction thereof, the lower end 21 rotatably coupled to a seat, a fixing bracket 2, a connecting member 3 and a stopping member 4, the upper end 22 being inserted into the housing 1, the connecting member 3 and the stopping member 4 being sequentially spaced apart from each other in the housing 1 in a direction extending from the lower end 21 toward the upper end 22, and the connecting member 3 and the stopping member 4 being fixed to the fixing bracket 2, the connecting member 3 being fixedly coupled to the housing 1, wherein the connecting member 3 is configured to be broken under a preset collision condition, to allow the housing 1 to move upward relative to the fixed bracket 2 and to be stopped by the stopping member 4 after moving a preset distance.

Through the technical scheme, the shell 1 of the lock catch is fixedly arranged at the upper end of the fixed support 2 through the connecting component 3, when no collision occurs, the fixed support 2 is kept at a normal position, a distance is reserved between the shell 1 and the seat side plate 7, when the collision occurs, the safety belt for restraining a human body moves forwards, the fixed support 2 rotates along with the fixed support, the shell 1 moves forwards along with the upper end 22 of the fixed support 2 and is contacted with the seat side plate 7, so that the preset collision condition is met, the connecting component 3 breaks, the connection between the shell 1 and the fixed support 2 is cut off, the shell 1 moves upwards relative to the fixed support 2 and is stopped by the back stopping component 4 after moving for the preset distance, the shell 1 can be far away from the seat side plate 7, the phenomenon that the shell 1 and the seat side plate 7 are mutually extruded to deform to influence unlocking is avoided, and meanwhile, the shell 1 is still connected with the fixed support 2, the restraint function of the safety belt on the human body is met. From this, the tapered end assembly of safety belt mortise lock that this application provided can avoid when the vehicle bumps casing and the seat extrusion deformation of mortise lock, influences the unblock of collision back mortise lock.

Here, the preset collision condition refers to a collision of the vehicle and contact of the case 1 with the seat side plate 7, and the preset distance refers to a distance between the connecting member 3 and the stopper member 4 as long as the distance is such that the case 1 and the seat side plate 7 are prevented from being pressed against each other after the movement of the case 1.

There are various ways of achieving the breakage of the connecting member 3, and alternatively, the lock cylinder assembly may include a cutting device 5, and the cutting device 5 includes a cutter 51, and the cutter 51 is used for cutting the connecting member 3 under the preset collision condition to achieve the breakage of the connecting member 3, thereby cutting off the connection between the housing 1 and the fixed bracket 2, so that the housing 1 can move toward the upper end 22 of the fixed bracket 2 under the pulling force of the seat belt to be away from the seat side plate 7.

According to some embodiments of the present disclosure, referring to fig. 3 and 4, the weakening groove 31 is provided at a portion of the connection member 3 corresponding to the cutting blade 51, so that the cutting blade 51 can cut the connection member 3 quickly.

According to some embodiments of the present disclosure, referring to fig. 3 and 4, the cutting device 5 includes a power unit 52, and the power unit 52 drives the cutting knife 51 to move toward the connecting member 3 under the preset collision condition and provides the cutting knife 51 with momentum capable of cutting the connecting member 3. That is, when the preset collision condition is satisfied, the power unit 52 starts to drive the cutter 51 to move and enables the cutter 51 to cut off the connecting member 3.

The power unit 52 may be configured in any of a number of suitable ways, and alternatively, the power unit 52 may be configured as an explosive drive. The cutter 51 is rapidly moved and cuts the connection member 3 by the energy of the explosion of the gunpowder.

The nature of the powder explosion determines that the direction in which the cutter 51 is pushed by the powder explosion is not fixed without a direction guide, and therefore, in order to ensure that the cutter 51 cuts the connecting member 3 smoothly, the cutting device 5 may include a guide structure 53, the guide structure 53 being configured with a linear guide channel extending parallel to the length direction of the fixed bracket 2, in which the power unit 52 and the cutter 51 are both installed. Like this, under the restraint guide of straight line guide way, cutter 51 can be along linear motion to connecting elements 3, has guaranteed that connecting elements 3 can be cut off by cutter 51 is accurate, and linear motion's characteristics still make cutter 51 have great cutting ability under less drive power. Furthermore, the cutter 51 has a back and a blade, the outer peripheral profile of the back being adapted to the inner peripheral profile of the linear guide channel to ensure that the cutter 51 moves in a straight line.

In order to protect other devices in the housing 1 from the influence of gunpowder explosion and to perform a safety protection function, referring to fig. 3 and 4, the cutting device 5 includes a protective cover 54, the guide structure 53 is fixedly arranged in the protective cover 54, and a first avoidance port 541 allowing the cutting blade 51 to pass through is arranged at the bottom of the protective cover 54. Thus, when gunpowder explodes, the energy released by the gunpowder type explosion driver in the linear guide channel can be blocked by the protective cover 54 except for driving the cutter 51 to move along the straight line, and the purpose of safety protection is achieved. Alternatively, the guide structure 53 may be configured as a linear tube with the upper end 22 in sealed connection with the top wall of the protective shield 54, the pyrotechnic explosion actuator located within the linear tube, the cutter 51 may be mounted below the pyrotechnic explosion actuator, and the ignition device of the pyrotechnic explosion actuator may be disposed outside the top wall of the protective shield 54, facilitating electrical connection through the top wall to the pyrotechnic explosion actuator.

It should be noted here that, for convenience of illustration of the internal structure, the protective cover 54 and the guide structure 53 shown in fig. 3 and 4 are schematic diagrams with a part of the side wall removed, and actually, both the protective cover 54 and the guide structure 53 have openings only at the bottom ends.

According to some embodiments of this disclosure, cutting device 5 can set firmly in fixed bolster 2, and be located the below of backstop component 4, be provided with the second on the diapire of casing 1 and dodge mouthful 11, the second dodges mouthful 11 and allows cutting device 5 with fixed bolster 2 passes, connecting element 3 with backstop component 4 all along with fixed bolster 2 looks vertically transversely extends, the both ends overlap joint of connecting element 3 on the diapire, the both ends of backstop component 4 can by the diapire backstop, cutting device 5 includes two and installs fixed bolster 2 both sides cutter 51. That is to say, cutting device 5 fixed connection is on fixed bolster 2, two cutters 51 will connect the back of component 3 cutting off, casing 1 moves upwards, cutting device 5's safety cover 54 passes the second and dodges mouthful 11, power unit 52, cutter 51 and guide structure 53 can dodge mouthful 11 from the second and drop, when casing 1 moved to backstop component 4, the diapire can be backstopd by backstop component 4, both guaranteed being connected between casing 1 and the fixed bolster 2, the validity of safety belt has been guaranteed promptly, can make casing 1 keep away from seat sideboard 7 again and avoid being extruded to the condition of damage and take place. In addition, the number of the power units 52 and the number of the guide structures 53 are the same as that of the cutters 51, the power units and the guide structures correspond to each other one by one, the connecting members 3 and the stopping members 4 can be welded on the fixing support 2, and the connecting members 3 can be connected with the shell 1 through clamping structures or fasteners.

According to a second aspect of the present disclosure, a safety belt mortise lock system is provided, which includes a contact switch 6, a vehicle collision sensor, a central controller and a lock cylinder assembly of the safety belt mortise lock, wherein the contact switch 6 is fixedly connected to an outer side of the housing 1 and is configured to detect contact between the housing and a seat side plate 7 in the lock cylinder assembly, the vehicle collision sensor is configured to detect a collision of a vehicle, wherein the preset collision condition is that the housing 1 is in contact with the seat side and the vehicle collides, and the central controller is electrically connected to the contact switch 6, the vehicle collision sensor and the lock cylinder assembly, and triggers the connecting member 3 in the lock cylinder assembly to be broken when the preset collision condition is satisfied. That is, a contact signal may be sent to the central controller when the contact switch 6 detects that the case 1 is in contact with the seat side plate 7, and a collision signal may be sent to the central controller when the vehicle sensor detects that the vehicle has collided, and the central controller determines that the disconnection condition of the connection member 3 has been reached based on these two signals, and then may trigger the connection member 3 to be disconnected. According to the above description, the connecting member 3 is broken by being cut by the cutter 51, and therefore, the central controller is electrically connected to the cutting device 5, and when the breaking condition is satisfied, the central controller issues a breaking instruction to the cutting device 5, and the control strategy for activating the cutting device 5 can refer to the work flow chart shown in fig. 6. Wherein, the contact switch 6 can be fixed on the bottom of the outer side of the shell 1, when the shell 1 contacts with the seat side plate 7, the contact switch 6 is pressed, thereby sending out a contact signal.

In addition, when the rear of the vehicle is collided, the passenger has the moving inertia towards the rear of the vehicle, and the safety belt can not be driven to move forwards, so the vehicle collision sensor can comprise a left front collision sensor and a right front collision sensor, the two sensors are respectively arranged at the left end and the right end at the rear side of the front bumper and are used for confirming whether the vehicle is in a front collision or in a side collision, and can also sense the impact acceleration signal in the collision and transmit the signal to the control unit of the central controller, the central controller can be arranged at the middle front position of the central console of the vehicle, when the sensor in the central controller also senses the collision acceleration, the control unit determines that the vehicle is collided, and after receiving the contact signal sent by the contact switch 6 again, the control unit can determine that the preset collision condition is met, can send the crash instruction, and the crash instruction can be sent in a current form, for example, the central controller may send a current of 1.2A to the ignition device of the pyrotechnic drive.

According to a third aspect of the present disclosure, a vehicle is provided that includes the seatbelt latch system described above. After the vehicle is collided, the integrity of the safety belt mortise lock can still be kept, and the unlocking and rescue are facilitated.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A lock head assembly of a safety belt mortise lock is characterized by comprising a lock catch, a fixed support (2), a connecting component (3) and a stopping component (4), the lock catch has a housing (1), the fixing support (2) comprises a lower end (21) and an upper end (22) opposite to each other along the length direction of the fixing support, the lower end (21) is rotatably connected to a seat, the upper end (22) is inserted into the housing (1), in a direction extending from the lower end (21) towards the upper end (22), the connecting component (3) and the stopping component (4) are sequentially arranged in the shell (1) at intervals, the connecting component (3) and the stopping component (4) are fixed on the fixed bracket (2), the connecting component (3) is fixedly connected with the shell (1),

wherein the connecting member (3) is configured to break under a preset crash condition to allow the housing (1) to move upward relative to the fixed bracket (2) and to be stopped by the stopping member (4) after moving a preset distance.

2. The lock cylinder assembly of a belt latch according to claim 1, characterized in that it comprises a severing device (5), the severing device (5) comprising a cutting knife (51), the cutting knife (51) being adapted to sever the connecting member (3) in the preset crash condition.

3. The lock cylinder assembly of a seatbelt buckle according to claim 2, wherein a portion of the connecting member (3) corresponding to the cutter (51) is provided with a weakening groove (31).

4. The lock cylinder assembly of a seatbelt buckle according to claim 2, wherein the cut-off device (5) includes a power unit (52), the power unit (52) driving the cutting blade (51) to move toward the connecting member (3) under the preset collision condition and providing the cutting blade (51) with momentum capable of cutting off the connecting member (3).

5. The lock cylinder assembly of a belt latch according to claim 4, characterized in that the power unit (52) is configured as a gunpowder type explosive drive.

6. The lock cylinder assembly of a seatbelt lock according to claim 5, wherein the cut-off device (5) includes a guide structure (53), the guide structure (53) is configured with a linear guide channel extending parallel to a length direction of the fixing bracket (2), and the power unit (52) and the cutter (51) are installed in the linear guide channel.

7. The lock cylinder assembly of a seatbelt mortise lock according to claim 6, wherein the cut-off device (5) includes a protection cover (54), the guide structure (53) is fixed in the protection cover (54), and a bottom of the protection cover (54) is provided with a first escape opening (541) allowing the cutting knife (51) to pass therethrough.

8. The lock cylinder assembly of a safety belt latch according to any one of claims 2 to 7, wherein the cutting device (5) is fixedly arranged on the fixing bracket (2) and located below the stopping member (4), a second avoiding opening (11) is provided on a bottom wall of the housing (1), the second avoiding opening (11) allows the cutting device (5) and the fixing bracket (2) to pass through, the connecting member (3) and the stopping member (4) both extend in a transverse direction perpendicular to the fixing bracket (2), both ends of the connecting member (3) are overlapped on the bottom wall, both ends of the stopping member (4) can be stopped by the bottom wall, and the cutting device (5) includes two cutting blades (51) installed on both sides of the fixing bracket (2).

9. A seatbelt latch system characterized by comprising a contact switch (6), a vehicle collision sensor, a central controller and a cylinder assembly of the seatbelt latch of any one of the above claims 1 to 8, wherein the contact switch (6) is fixedly connected with the outer side of the shell (1) and is used for detecting the contact between the shell (1) and a seat side plate (7) in the lock cylinder assembly, the vehicle collision sensor is used for detecting the collision of the vehicle, wherein the preset collision condition is that the shell (1) is in contact with the seat edge and the vehicle collides, the central controller is electrically connected with the contact switch (6), the vehicle collision sensor and the lock cylinder assembly, and when the preset collision condition is met, triggering a connecting member (3) in the lock head assembly to break.

10. A vehicle comprising the seatbelt buckle system of claim 9.

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