CN209381950U

CN209381950U - Automobile safety belt locking mechanism

Info

Publication number: CN209381950U
Application number: CN201821980842.8U
Authority: CN
Inventors: 苗博; 满章明; 张远骏; 李健伟
Original assignee: Dongfeng Trucks Co ltd
Current assignee: Dongfeng Trucks Co ltd
Priority date: 2018-11-29
Filing date: 2018-11-29
Publication date: 2019-09-13
Anticipated expiration: 2028-11-29

Abstract

A car safety belt locking mechanism comprises a ratchet wheel, a ball sensing element, an outer pawl assembly and a clamp spring, wherein the clamp spring comprises a head part, a left leg part and a right leg part which are consistent in structure, the head part is clamped at the center of the ratchet wheel, the left leg part and the right leg part are both L-shaped structures, the left leg part is positioned on the left side of the outer pawl assembly and comprises a first rod and a second rod, the right leg part is positioned on the outer side of the outer pawl assembly and comprises a third rod and a fourth rod, the first rod and the third rod are positioned at the top of the ratchet wheel, two ends of the first rod are respectively connected with one end of the head part and one end of the second rod, two ends of the third rod are respectively connected with one end of the head part and one end of the fourth rod, the other ends of the second rod and the fourth rod extend towards the bottom of the ratchet wheel, and, wherein m is the minimum distance from a plate to the center of the ratchet wheel, and n is the maximum distance from the plate to the center of the ratchet wheel. This design has effectively improved the travelling comfort of wearing of safety belt.

Description

A kind of automobile safety belt latching mechanism

Technical field

The utility model belongs to body of a motor car system regions, and in particular to a kind of automobile safety belt latching mechanism is suitable for The frequent locking of safety belt caused by slight vibration is avoided, the wearing comfort of safety belt is improved.

Background technique

Car belt is very important component part in auto parts, when vehicle collides or use emergency braking When, safety belt can effectively by passenger, firmly bolt prevents secondary collision on automotive seat excessively, to improve the peace of driving Quan Xing.For existing safety belt structure, commercial vehicle drive road conditions rather harsh, driver's cabin it is higher etc. due to, work as vehicle In the road traveling continuously slightly to jolt, vehicle vibration will lead to ball sensing element and jack up outer pawl triggering locking, make ribbon It can not further extract out, be shaken with vehicle so that webbing slack, ribbon is influenced to realize recycling by retracting power, at this time by vehicle with descendant Continuous slight vibration influences, and coiler continues to shake still in locking trend, people with vehicle, and pullling ribbon causes the more to receive the more tight, because This safety belt will receive acceleration influence and be only capable of furling into coiler, and coiler locking causes safety belt appearance persistently to tighten shape Condition, user's wearing comfort are poor.

Summary of the invention

The purpose of the utility model is to overcome the problems of seatbelt wearing comfort difference of the existing technology, provide one kind It is effectively improved the automobile safety belt latching mechanism of the wearing comfort of safety belt.

In order to achieve the above object, the utility model provides following technical scheme:

A kind of automobile safety belt latching mechanism, including being located at ratchet and ball sensing element inside coiler outer box；

Outer pawl assembly is provided between the ratchet and ball sensing element, the outer pawl assembly includes central axis, set The turnbarrel being located at outside central axis is provided with by the outwardly extending No.1 plate of its outer wall, No. two plates on the turnbarrel, The No.1 plate, No. two plates are located at the two sides of turnbarrel, and being extended with by its surface towards ratchet on No. two plates can be with The crevis that the external tooth of ratchet is meshed；

The inside of the coiler outer box is additionally provided with circlip, the circlip include head, the consistent left leg of structure and Right leg, the head are connected at the center of ratchet, and the left leg, right leg are L-shaped structure, and the left leg is located at The outside of No.1 plate, including No.1 bar, No. two bars that can be in contact with the back of No.1 plate, the right leg is located at No. two plates Outside, including No. three bars, No. four bars, the No.1 bar, No. three bars are respectively positioned on the top of ratchet, the both ends of No.1 bar respectively with head Portion, No. two bars one end be connected, the both ends of No. three bars are connected with the one end on head, No. four bars respectively, No. two bars, No. four bars The other end towards ratchet bottom extend.

Circlip gag lever post is provided between No. two plates and No. four bars.

It is 62.5 ° of 61.5 ﹣ that the No.1 bar and No. three bars, which are formed by angle,.

Bottom plate is provided between the ratchet and coiler outer box, the central axis, circlip gag lever post are each attached to bottom plate On.

The ball sensing element includes support, steel ball, baffle, and the side of the steel ball is located at the groove opened up on support In, be in contact in the middle part of the other side of steel ball and baffle, one end of the baffle and the side plate of support are rotatably assorted, baffle it is another One end extends at nearly No. two plates.

The head is circular configuration, is interference fitted with the center of ratchet.

Compared with prior art, the utility model has the following beneficial effects:

1, coiler outer box are internally provided with circlip, circlip packet in a kind of automobile safety belt latching mechanism of the utility model It includes head, the consistent left leg of structure and right leg, head to be connected at the center of ratchet, left leg, right leg are L shape knot Structure, left leg are located at the outside of No.1 plate, including No.1 bar, No. two bars that can be in contact with the back of No.1 plate, right leg position In the outside of No. two plates, including No. three bars, No. four bars, No.1 bar, No. three bars are respectively positioned on the top of ratchet, the both ends point of No.1 bar It is not connected with the one end on head, No. two bars, the both ends of No. three bars are connected with the one end on head, No. four bars respectively, No. two bars, The other end of No. four bars extends towards the bottom of ratchet, when acceleration or tilt angle reach certain value, ball sensing element Can jack up No. two plates, circlip with ratchet wheel to No.1 plate at, solution is forced in the realization that is in contact with the back of No.1 plate of No. two bars Lock makes the external tooth of ratchet and crevis be in non-engagement state, to guarantee that ribbon can be suitable when people continues to shake with vehicle Benefit extraction, avoids the phenomenon for the more receiving the more tight from occurring, and then be effectively improved the wearing comfort of safety belt.Therefore, the utility model Improve the wearing comfort of safety belt.

2, circlip limit is provided in a kind of automobile safety belt latching mechanism of the utility model between No. two plates and No. four bars Bar, the structure can effectively prevent circlip that can not excessively return to initial position because rotating clockwise, to guarantee circlip compulsive unlocking Effect.Therefore, the utility model ensure that the effect of circlip compulsive unlocking.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of circlip in Fig. 1.

In figure, ratchet 1, ball sensing element 2, support 21, steel ball 22, baffle 23, outer pawl assembly 3, central axis 31, rotation Sleeve 32, No.1 plate 321, No. two plates 322, crevis 323, back 324, circlip 4, head 41, left leg 42, No.1 bars 421, No. two bars 422, right leg 43, three bar 431, No. four bars 432, coiler outer box 5, circlip gag lever post 6, bottom plates 7.

Specific embodiment

The utility model is further described With reference to embodiment.

Referring to Fig. 1 to Fig. 2, a kind of automobile safety belt latching mechanism, including being located at 1 He of ratchet inside coiler outer box 5 Ball sensing element 2；

Outer pawl assembly 3 is provided between the ratchet 1 and ball sensing element 2, the outer pawl assembly 3 includes central axis 31, the turnbarrel 32 being set in outside central axis 31 is provided with by its outer wall outwardly extending one on the turnbarrel 32 Number 321, No. two plates 322 of plate, 321, No. two plates 322 of the No.1 plate are located at the two sides of turnbarrel 32, and No. two plates 322 On by its surface be extended with the crevis 323 that can be meshed with the external tooth of ratchet 1 towards ratchet 1；

The inside of the coiler outer box 5 is additionally provided with circlip 4, and the circlip 4 includes head 41, the consistent left leg of structure Portion 42 and right leg 43, the head 41 are connected at the center of ratchet 1, and the left leg 42, right leg 43 are L shape knot Structure, the left leg 42 are located at the outside of No.1 plate 321, including No.1 bar 421, can be in contact with the back 324 of No.1 plate 321 No. two bars 422, the right leg 43 is located at the outside of No. two plates 322, including 431, No. four bars 432 of No. three bars, the No.1 421, No. three bars 431 of bar are respectively positioned on the top of ratchet 1, the both ends of No.1 bar 421 one end with 41, No. two bars 422 in head respectively It is connected, the both ends of No. three bars 431 are connected with one end of 41, No. four bars 432 in head respectively, 422, No. four bars 432 of No. two bars The other end towards ratchet 1 bottom extend.

Circlip gag lever post 6 is provided between No. two plates 322 and No. four bars 432.

It is 62.5 ° of 61.5 ﹣ that the No.1 bar 421 and No. three bars 431, which are formed by angle,.

Bottom plate 7 is provided between the ratchet 1 and coiler outer box 5, the central axis 31, circlip gag lever post 6 are fixed On bottom plate 7.

The ball sensing element 2 includes support 21, steel ball 22, baffle 23, and the side of the steel ball 22 is located on support 21 In the groove opened up, the other side of steel ball 22 is in contact with the middle part of baffle 23, one end of the baffle 23 and the side of support 21 Plate is rotatably assorted, and the other end of baffle 23 extends at nearly No. two plates 322.

The head 41 is circular configuration, is interference fitted with the center of ratchet 1.

The principles of the present invention are described as follows:

In order to avoid slight vibration leads to the frequent locking of safety belt, the sensitivity of safety belt locking is reduced, the utility model exists Circlip 4 and circlip gag lever post 6 are additionally arranged in coiler, the safety belt after increasing above structure complies fully with regulation performance requirement.

Embodiment 1:

Referring to Fig. 1 to Fig. 2, a kind of automobile safety belt latching mechanism, including being located at ratchet 1, ball inside coiler outer box 5 Sensing element 2 and circlip 4 are provided with outer pawl assembly 3, the outer pawl assembly 3 between the ratchet 1 and ball sensing element 2 It is arranged side by side with ratchet 1, ball sensing element 2, it is described including central axis 31, the turnbarrel being set in outside central axis 31 32 It is provided on turnbarrel 32 by its outer wall 321, No. two plates 322 of outwardly extending No.1 plate, 321, No. two plates of the No.1 plate 322 are located at the two sides of turnbarrel 32, and being extended with by its surface towards ratchet 1 on No. two plates 322 can be outer with ratchet 1 The crevis 323 that tooth is meshed, the ball sensing element 2 include support 21, steel ball 22, baffle 23, the one of the steel ball 22 Side is located in the groove opened up on support 21, and the other side of steel ball 22 is in contact with the middle part of baffle 23, and the one of the baffle 23 It holds and is rotatably assorted with the side plate of support 21, the other end of baffle 23 extends at nearly No. two plates 322, and the circlip 4 includes head 41, the consistent left leg 42 of structure and right leg 43, the head 41 are circular configuration, are interference fitted with the center of ratchet 1, The left leg 42, right leg 43 are L-shaped structure, and the left leg 42 is located at the outside of No.1 plate 321, including No.1 bar 421, No. two bars 422 that can be in contact with the back 324 of No.1 plate 321, the right leg 43 are located at the outside of No. two plates 322, Including 431, No. four bars 432 of No. three bars, 421, No. three bars 431 of the No.1 bar are respectively positioned on the top of ratchet 1, No.1 bar 421 Both ends are connected with one end of 41, No. two bars 422 in head respectively, the both ends of No. three bars 431 respectively with the bar 432 of head 41, four One end be connected, it is 62 ° that No.1 bar 421 and No. three bars 431, which are formed by angle, 422, No. four bars 432 of No. two bars it is another End extends towards the bottom of ratchet 1, is provided with circlip gag lever post 6 between No. two plates 322 and No. four bars 432, it is described in Mandrel 31, circlip gag lever post 6 are each attached on the bottom plate 7 between ratchet 1 and coiler outer box 5.

Claims

1. a kind of automobile safety belt latching mechanism, including being located at coiler outer box (5) internal ratchet (1) and ball sensing element (2), it is characterised in that:

Outer pawl assembly (3) is provided between the ratchet (1) and ball sensing element (2), during the outer pawl assembly (3) includes Mandrel (31) is set in the external turnbarrel (32) of central axis (31), is provided on the turnbarrel (32) by its outer wall Outwardly extending No.1 plate (321), No. two plates (322), the No.1 plate (321), No. two plates (322) are located at turnbarrel (32) two sides, and be extended on No. two plates (322) and can be meshed with the external tooth of ratchet (1) towards ratchet (1) by its surface Crevis (323)；

The inside of the coiler outer box (5) is additionally provided with circlip (4), and the circlip (4) includes that head (41), structure are consistent Left leg (42) and right leg (43), the head (41) are connected at the center of ratchet (1), the left leg (42), right leg Portion (43) is L-shaped structure, and the left leg (42) is located at the outside of No.1 plate (321), including No.1 bar (421), can be with one No. two bars (422) that the back (324) of number plate (321) is in contact, the right leg (43) are located at the outside of No. two plates (322), Including No. three bars (431), No. four bars (432), the No.1 bar (421), No. three bars (431) are respectively positioned on the top of ratchet (1), and one The both ends of number bar (421) are connected with one end of head (41), No. two bars (422) respectively, the both ends of No. three bars (431) respectively with Head (41), No. four bars (432) one end be connected, No. two bars (422), No. four bars (432) the other end towards ratchet (1) Bottom extend.

2. a kind of automobile safety belt latching mechanism according to claim 1, it is characterised in that: No. two plates (322) with Circlip gag lever post (6) are provided between No. four bars (432).

3. a kind of automobile safety belt latching mechanism according to claim 1 or 2, it is characterised in that: the No.1 bar (421) Being formed by angle with No. three bars (431) is 62.5 ° of 61.5 ﹣.

4. a kind of automobile safety belt latching mechanism according to claim 2, it is characterised in that: the ratchet (1) and retracting It is provided between device outer box (5) bottom plate (7), the central axis (31), circlip gag lever post (6) are each attached on bottom plate (7).

5. a kind of automobile safety belt latching mechanism described in any one of ﹣ 3 according to claim 1, it is characterised in that: the ball is quick Sensing unit (2) includes support (21), steel ball (22), baffle (23), and the side of the steel ball (22), which is located on support (21), to be opened up Groove in, be in contact in the middle part of the other side and baffle (23) of steel ball (22), one end of the baffle (23) and support (21) Side plate be rotatably assorted, the other end of baffle (23) extends at nearly No. two plates (322).

6. a kind of automobile safety belt latching mechanism described in any one of ﹣ 3 according to claim 1, it is characterised in that: the head (41) it is circular configuration, is interference fitted with the center of ratchet (1).