An impact trigger device and a safety neck support assembly

Abstract

The present invention discloses an impact trigger device and a safety neck support assembly, and relates to the technical field of vehicle seat safety. When a vehicle is subjected to an impact above a certain level, the impact force is transmitted from the passenger seat to the impact trigger device and the safety neck support assembly of the vehicle passenger seat, so that the trigger device is triggered, and the one-way locking effect of the locking device is released under the action of the trigger device, and the neck support base plate and the neck support body are quickly retracted under the pulling force of the elastic element, thereby canceling the support force of the neck support body on the passenger's neck, avoiding the aggravation of the whipping effect, and protecting the safety of the passengers. In this way, the effect of improving the riding comfort of the passengers is achieved under the premise of safety.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle seat safety, and in particular to an impact trigger device and a safety neck support assembly. Background Art

[0002] The passenger seats of vehicles are often not equipped with neck supports, resulting in poor passenger comfort. The reason is that when the vehicle collides, the passenger's head is easily whipped, resulting in neck injuries. When the vehicle is hit from behind, the passenger's head moves backward rapidly. At this time, if a neck support is provided, the whipping effect will be aggravated, aggravating the neck injury. In addition, when the vehicle is hit from the front, there is also the possibility that the passenger's head moves backward rapidly due to the explosion of the airbag or the rebound of the seat belt, causing the whipping effect. At this time, if a neck support is provided, the whipping effect will be aggravated.

[0003] There is no solution to this problem in the industry at present, and the only solution is to not provide neck support based on the principle of safety first. Therefore, when sitting in the passenger seat of a vehicle, the comfort of the passenger needs to be improved due to the lack of neck support. For this reason, we propose an impact trigger device and a safety neck support assembly. Summary of the invention

[0004] The purpose of the present invention is to solve the problems mentioned in the above background technology, and the present invention provides an impact trigger device and a safety neck collar assembly.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] An impact triggering device, comprising:

[0007] A base, the base is connected to the seat frame and is provided with a plurality of holes;

[0008] Connecting rods, wherein the connecting rods are provided in multiple groups, the connecting rods are provided with a plurality of holes, and the connecting rods can be connected to other connecting rods or components through connecting pieces;

[0009] A locking device connected to the connecting rod;

[0010] An unlocking device is connected to the locking device, and the unlocking device includes a common triggering device and an impact triggering device.

[0011] Furthermore, a guide rail is arranged on the base.

[0012] Furthermore, the locking device includes: a shaft, a sliding block, an elastic element and a one-way locking tooth, wherein the sliding block is installed on the shaft, sliding block engaging ends are provided on both sides of the sliding block, a sliding block driving end is provided above the sliding block, the one-way locking teeth are respectively provided on the sliding block engaging end and the connecting rod, and the elastic element is used to connect the sliding block and the connecting rod.

[0013] Furthermore, the one-way locking tooth comprises a disc and a helical tooth group.

[0014] Furthermore, a compression spring is installed between the sliding blocks.

[0015] Furthermore, the locking device includes: a shaft, a sliding block, an elastic element and a one-way locking tooth, wherein the sliding block is installed on the shaft, sliding block engaging ends are provided on both sides of the sliding block, a sliding block driving end is provided above the sliding block, the one-way locking teeth are respectively provided on the sliding block engaging end and the connecting rod, and the one-way locking teeth include a disc and a bevel tooth group, the elastic element is used to connect the sliding block and the connecting rod, and a compression spring is installed between the sliding blocks.

[0016] Furthermore, the locking device further comprises: a pawl, wherein the pawl is arranged on the engaging end of the sliding block, and the pawl comprises a pawl body and a pawl engaging end.

[0017] A safety neck support assembly comprises any of the impact triggering devices described above, and further comprises: a neck support base plate and a neck support body, wherein the neck support body is arranged above the neck support base plate, and the neck support base plate is connected to the base through the connecting rod.

[0018] Furthermore, the neck support base plate is connected to the neck support base plate through a plurality of connecting rods and guide rail sliders.

[0019] Furthermore, the connecting rod is divided into two groups of symmetrically arranged first connecting rod group 2a, second connecting rod group 2b, third connecting rod group 2c and fourth connecting rod group 2d from front to back, wherein the first connecting rod group 2a, the second connecting rod group 2b, the third connecting rod group 2c and the fourth connecting rod group 2d located on the same side are connected in pairs, and the two groups of the second connecting rod groups 2b are connected through a long axis.

[0020] Furthermore, the neck support bottom plate is provided with a guide rail, a guide rail slider is provided in the guide rail, and the guide rail slider is connected to the connecting rod.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. In the normal use state of the present invention, the neck support body cannot move backwards due to the one-way locking effect of the locking device on the connecting rod. Therefore, the neck support body provides support for the neck of the occupant and improves the riding comfort. When the position of the neck support needs to be adjusted, the neck support body can be pulled forward by hand. If it needs to be adjusted backwards, the locking device can be unlocked to release the one-way locking effect, and then it can be adjusted backwards.

[0023] 2. When the vehicle is impacted to a certain degree or above, the impact force is transmitted from the passenger seat to the impact trigger device and the safety neck support assembly of the vehicle passenger seat, so that the trigger device is triggered, and the one-way locking function of the locking device is released under the action of the trigger device. The neck support base plate and the neck support body are quickly retracted under the tension of the elastic element, thereby canceling the support force of the neck support body on the passenger's neck, avoiding the aggravation of the whiplash effect, and protecting the safety of the passengers. In this way, the effect of improving the riding comfort of the passengers is achieved under the premise of safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the appearance of the present invention installed on a passenger seat;

[0025] Figure 2A , Figure 2C , Figure 2D It is a three-dimensional schematic diagram of the third embodiment of the present invention;

[0026] Figure 2B It is a three-dimensional schematic diagram of the fourth embodiment of the present invention;

[0027] Figure 3A and Figure 4A is a three-dimensional schematic diagram of a locking device in Embodiment 1 of the present invention;

[0028] Figure 3B , Figure 4B , Figure 4C and Figure 4D is a three-dimensional schematic diagram of a locking device in Embodiment 2 of the present invention;

[0029] Figure 5 yes Figure 3A Schematic cross-sectional view of ;

[0030] Figure 6 It is a cross-sectional schematic diagram of the impact trigger device in the present invention.

[0031] Figure numerals: 1. base; 2. connecting rod; 3. neck support bottom plate; 4. neck support body; 5. long axis; 6. sliding block; 7. sliding block bite end; 8. sliding block driving end; 9. unlocking device; 10. ordinary trigger device; 11. impact trigger device; 12. elastic element; 13. locking device; 14. one-way locking tooth; 15. pawl; 16. pawl bite end; 17. guide rail; 18. guide rail slider. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] like Figure 1-6 As shown, the present invention provides an impact trigger device, comprising:

[0034] A base 1, which is connected to the seat frame and has a plurality of holes;

[0035] Connecting rods 2, multiple groups of connecting rods 2 are provided, and a plurality of holes are provided on the connecting rods 2. The connecting rods 2 can be connected to other connecting rods or components through connecting pieces;

[0036] A locking device 13, the locking device 13 is connected to the connecting rod 2;

[0037] The unlocking device 9 is connected to the locking device 13 , and the unlocking device 9 includes a common triggering device 10 and an impact triggering device 11 .

[0038] Embodiment 1

[0039] like Figure 3A and Figure 4A As shown, the locking device 13 includes: a shaft, a sliding block 6, an elastic element 12 and a one-way locking tooth 14, wherein the sliding block 6 is installed on the shaft, sliding block engaging ends 7 are provided on both sides of the sliding block 6, a sliding block driving end 8 is provided above the sliding block 6, the one-way locking tooth 14 is respectively provided on the sliding block engaging end 7 and the connecting rod 2, and the one-way locking tooth 14 includes a disc and a helical tooth group, the elastic element 12 is used to connect the sliding block 6 and the connecting rod 2, and a compression spring is installed between the sliding blocks 6.

[0040] A first disc is provided on the sliding block 6, a second disc is provided on the connecting rod 2, a first bevel gear group is provided on the first disc, a second bevel gear group is provided on the second disc, the first bevel gear group includes first unidirectional bevel gears arranged along the circumference of the disc, two adjacent first unidirectional bevel gears define a first straight groove and a first bevel groove that are connected, and the second bevel gear group includes second unidirectional bevel gears arranged along the circumference of the disc, two adjacent second unidirectional bevel gears define a second straight groove and a second bevel groove that are connected.

[0041] When the locking device is activated, under the action of the elastic element 12, the first disc fits with the second disc, the first unidirectional beveled tooth fits with the second unidirectional beveled tooth, and the first straight groove of the first beveled tooth group fits with the second straight groove of the second beveled tooth group, so that the connecting rod 2 can be non-rotatable in one direction relative to the sliding block 6. When the neck support body 4 needs to be adjusted forward, the connecting rod 2 rotates in the other direction relative to the sliding block 6, and the first beveled groove of the first beveled tooth group on the first disc fits with the second beveled groove of the second beveled tooth group on the second disc. Under the action of the first beveled groove and the second beveled groove, the first disc and the second disc gradually separate from each other despite the action of the elastic element 12. When the first beveled groove and the second beveled groove pass the highest point, the first disc fits with the second disc under the action of the elastic element 12, and the first unidirectional beveled tooth fits with the next second unidirectional beveled tooth. This process is repeated during the rotation process, so that the connecting rod 2 can be non-rotatable in one direction relative to the sliding block 6, but can rotate in the other direction.

[0042] When the unlocking device 9 is activated, Figure 3A As shown, when the ordinary trigger device 10 is activated, the sliding block driving end 8 is driven by the pull rope in the ordinary trigger device 10, thereby moving from both sides to the middle, so that the one-way locking tooth 14 of the sliding block engagement end 7 is separated from the one-way locking tooth 14 on the connecting rod 2, thereby achieving unlocking.

[0043] When the impact trigger device 11 is activated, the sliding block driving end 8 is driven by the impact trigger device 11 to move from both sides to the middle, so that the one-way locking teeth 14 of the sliding block engaging end 7 are separated from the one-way locking teeth 14 on the connecting rod 2, thereby releasing the lock.

[0044] Embodiment 2

[0045] like Figure 3B , Figure 4B , Figure 4C and Figure 4D As shown, the locking device 13 further includes: a pawl 15 , which is disposed on the sliding block engagement end 7 , and includes a pawl body and a pawl engagement end 16 .

[0046] The sliding block 6 is mounted on the shaft. The sliding block 6 can only move axially but cannot rotate around the shaft under the action of the direction-maintaining connecting rod. The one-way locking tooth 14 is arranged on the connecting rod 2. The ratchet 15 is arranged on the engaging end 7 of the sliding block. The one-way locking tooth 14 includes a disc, a circumferential sleeve, a helical tooth group and a reset port. The one-way helical tooth group includes one-way helical teeth arranged along the circumference of the disc. Two adjacent one-way helical teeth define a connected straight groove and an oblique groove. The one-way helical tooth group includes a reset port. The one-way helical tooth group is provided with a plurality of notched portions without one-way helical teeth to form a reset port. The ratchet pawl engaging end 16 includes a straight surface and an oblique surface.

[0047] When the locking device is in action, under the action of the elastic element 12, the pawl on the sliding block 6 fits with the disc of the one-way locking tooth on the connecting rod 2, the pawl biting end 16 fits with the one-way bevel tooth, and the straight surface of the pawl biting end 16 fits with the straight groove of the one-way locking tooth, so that the connecting rod 2 can be one-way non-rotatable relative to the sliding block 6. When the neck support body 4 needs to be adjusted forward, the connecting rod 2 rotates in the other direction relative to the sliding block 6, and the bevel groove of the one-way bevel tooth on the connecting rod 2 fits with the bevel surface of the sliding block 6. Under the action of the bevel groove and the bevel surface, the pawl 15 undergoes elastic deformation, and the pawl biting end 16 gradually separates from the one-way bevel tooth. When the bevel groove and the bevel surface pass the highest point, the pawl biting end 16 continues to fit with the next one-way bevel tooth under the action of the pawl 15's own elasticity. The process is repeated during the rotation process, so that the connecting rod 2 can be one-way non-rotatable relative to the sliding block 6, and can rotate in the other direction.

[0048] When the unlocking device is activated, Figure 3B As shown, when the ordinary trigger device is activated, the sliding block driving end 8 is driven by the pull rope in the ordinary trigger device 10, thereby moving from both sides to the middle, so that the pawl 15 on the sliding block biting end 7 is separated from the disc of the one-way locking tooth 14 on the connecting rod 2, thereby achieving unlocking. When the impact trigger device 11 is activated, the sliding block driving end 8 is driven by the connecting rod 2 in the impact trigger device 11, thereby moving from both sides to the middle, so that the pawl 15 on the sliding block biting end 7 is separated from the disc of the one-way locking tooth 14 on the connecting rod 2, thereby achieving unlocking.

[0049] Embodiment 3

[0050] like Figure 2A , 2C As shown in Figure 2D, the connecting rod 2 is divided into two groups of symmetrically arranged first connecting rod group 2a, second connecting rod group 2b, third connecting rod group 2c and fourth connecting rod group 2d from front to back, wherein the first connecting rod group 2a, the second connecting rod group 2b, the third connecting rod group 2c and the fourth connecting rod group 2d located on the same side are connected in pairs, and the two groups of second connecting rod groups 2b are connected by a long axis 5. Under the action of the first connecting rod group 2a, the second connecting rod group 2b, the third connecting rod group 2c and the fourth connecting rod group 2d, a multi-link structure is formed, and through the linkage of several connecting rods, the neck support body 4 is able to move along a certain trajectory.

[0051] Embodiment 4

[0052] like Figure 2B As shown, the neck support base plate 3 is provided with a guide rail 17, and a guide rail slider 18 is provided inside the guide rail 17. The guide rail slider 18 is connected to the connecting rod 2. Through the movement of the connecting rod 2 and the guide rail slider 18, the neck support body 4 and other components can move along a certain trajectory.

[0053] A safety neck support assembly includes any of the above-mentioned impact trigger devices, and also includes: a neck support base plate 3 and a neck support body 4, wherein the neck support body 4 is arranged above the neck support base plate 3, the neck support base plate 3 is connected to the base 1 through a connecting rod 2, and the neck support base plate 3 is connected to the neck support base plate 3 through a plurality of connecting rods 2 and a guide rail slider 18.

[0054] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An impact trigger device, characterized in that: include: A base (1), the base (1) being connected to the seat frame and having a plurality of holes; Connecting rods (2), the connecting rods (2) are provided in multiple groups, the connecting rods (2) are provided with a plurality of holes, and the connecting rods (2) can be connected to other connecting rods or components through connecting pieces; A locking device (13), wherein the locking device (13) is connected to the connecting rod (2); An unlocking device (9), wherein the unlocking device (9) is connected to the locking device (13), and the unlocking device (9) comprises a common triggering device (10) and an impact triggering device (11).

2. An impact trigger device according to claim 1, characterized in that: A guide rail (17) is provided on the base (1).

3. An impact trigger device according to claim 1, characterized in that: The locking device (13) comprises: a shaft, a sliding block (6), an elastic element (12) and a one-way locking tooth (14), wherein the sliding block (6) is installed on the shaft, sliding block bite ends (7) are arranged on both sides of the sliding block (6), a sliding block driving end (8) is arranged above the sliding block (6), the one-way locking tooth (14) is respectively arranged on the sliding block bite end (7) and the connecting rod (2), and the elastic element (12) is used to connect the sliding block (6) and the connecting rod (2).

4. An impact trigger device according to claim 3, characterized in that: The one-way locking tooth (14) comprises a disc and a helical tooth group.

5. The impact triggering device according to claim 3, characterized in that: A compression spring is installed between the sliding blocks (6).

6. An impact triggering device according to claim 3, characterized in that: The locking device (13) further comprises: a pawl (15), wherein the pawl (15) is arranged on the engaging end (7) of the sliding block, and the pawl (15) comprises a pawl body and a pawl engaging end (16).

7. A safety neck collar assembly, characterized in that: It comprises the impact trigger device according to any one of claims 1 to 6; and a neck support base plate (3) and a neck support body (4), wherein the neck support body (4) is arranged above the neck support base plate (3), and the neck support base plate (3) is connected to the base (1) through the connecting rod (2).

8. A safety neck collar assembly according to claim 7, characterized in that: The neck support base plate (3) is connected to the neck support base plate (3) via a plurality of connecting rods (2) and guide rail sliders (18).

9. A safety neck collar assembly according to claim 7, characterized in that: The connecting rod (2) is divided into two groups of symmetrically arranged first connecting rod group 2a, second connecting rod group 2b, third connecting rod group 2c and fourth connecting rod group 2d from front to back, wherein the first connecting rod group 2a, the second connecting rod group 2b, the third connecting rod group 2c and the fourth connecting rod group 2d located on the same side are connected in pairs, and the two groups of the second connecting rod groups 2b are connected via a long axis (5).

10. A safety neck collar assembly according to claim 7, characterized in that: The neck support base plate (3) is provided with a guide rail (17), a guide rail slider (18) is provided inside the guide rail (17), and the guide rail slider (18) is connected to the connecting rod (2).

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