CN112056706A

CN112056706A - Lock catch mechanism, safety belt lock catch device with same and moving body

Info

Publication number: CN112056706A
Application number: CN201910503055.7A
Authority: CN
Inventors: 张飞鹏; 朱树东; 高磊; 刘卫民
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-12-11
Anticipated expiration: 2039-06-11
Also published as: CN112056706B

Abstract

The invention provides a latch mechanism and a safety belt latch device and a moving body with the same, wherein the latch mechanism comprises a bolt and a bolt fixing part, and the bolt fixing part comprises: a housing; a slider disposed within the housing; the track groove is arranged on the sliding block and comprises a guide section and a fixing section; and the first locking piece is arranged on the inner wall of the shell, when the lock tongue is inserted into the lock tongue fixing part, the first locking piece moves towards or away from the fixing section of the track groove along the guide section of the track groove, and when the lock tongue is inserted into or presses the lock tongue fixing part for the second time, the first locking piece is fixed or separated from the fixing section of the track groove, so that the lock tongue is locked or unlocked on the lock tongue fixing part. The invention realizes the locking and unlocking of the lock catch by pressing the lock tongue, and has small rebound sound and is not easy to loose.

Description

Lock catch mechanism, safety belt lock catch device with same and moving body

Technical Field

The invention relates to the technical field of automobile braking, in particular to a locking mechanism, a safety belt locking device with the locking mechanism and a moving body with the locking mechanism.

Background

With the requirement of automobile users for the perception experience of automobiles becoming higher and higher, automobile components similar to gull-wing doors, hidden door handles, touch keys and the like which give users novel operation experience are more and more widely applied, and the trend that the conventional way of giving customers new perception experience is the design of automobiles in the future is broken.

At present, the safety belt lock is one of the most frequently used components of a user, and only one unlocking mode is adopted, namely, a button is pressed to unlock. However, the mode of unlocking by pressing the button is poor in operation experience, and has the defects of obvious button pressing and rebound sound, loose buttons, large pressing force and the like; secondly, the button occupies a large volume in the whole lock catch, and is not suitable for the development trend of small volume and light weight of the existing automobile parts; in addition, because the button needs to move, and there is the clearance with the hasp housing, the market often feeds back the condition that piece debris fall into inside the hasp and lead to the hasp inefficacy.

Therefore, how to improve the use experience of the seat belt buckle is a technical problem that needs to be solved by those skilled in the art at present.

Disclosure of Invention

In view of this, the invention provides a locking mechanism, a seat belt locking device having the same, and a moving body, so as to improve the use experience of the lock.

This application firstly provides a latched device, including spring bolt and spring bolt fixed part, the spring bolt fixed part includes: a housing having a receiving space formed therein; the sliding block is arranged in the accommodating space and is provided with a first side surface, a first end surface and a second end surface which are oppositely arranged, and the first end surface is connected with the lock tongue; the first elastic element is clamped between the second end face and the inner wall of the shell, and when the bolt presses the sliding block, the sliding block extrudes the first elastic element so that the sliding block moves in the accommodating space; the track groove is arranged on the sliding block and comprises a guide section and a fixing section; and the first locking piece is arranged on the inner wall of the shell, moves towards or away from the fixed section of the track groove along the guide section of the track groove when the lock tongue is inserted into or presses the lock tongue fixing part for the second time, and is fixed on or separated from the fixed section when the lock tongue is inserted into or presses the lock tongue fixing part for the second time so as to lock or unlock the lock tongue on the lock tongue fixing part.

Further, the track groove is concavely embedded on the first side surface of the sliding block, the fixing section is recessed downwards relative to the guiding section of the adjacent part and is step-shaped, and when the bolt is inserted into the bolt fixing part, the first locking piece is clamped on the fixing section.

Further, the guide section comprises a guide step to guide the first locking piece to move unidirectionally along the track groove when the lock tongue is inserted or the lock tongue fixing part is pressed for the second time.

Further, the guide section still includes the first straight face, first inclined plane, second inclined plane, third inclined plane and the second straight face that set gradually along the equidirectional, the direction step is connected first straight face and first inclined plane, the fixed segment is connected second inclined plane and third inclined plane.

Further, the first locking piece is arranged on the inner wall of the shell in a protruding mode and is in a driving lever shape, one end of the first locking piece is fixed to the inner wall of the shell, and the other end of the first locking piece abuts against the track groove.

Further, the casing includes upper cover and lower cover of mutual lock, upper cover and lower cover closed form the storage space, storage opening has at the both ends in storage space, storage opening is used for receiving the spring bolt.

Further, the number of openings is only two.

The present application further provides a seat belt buckle device having any one of the above-described buckle mechanisms, and, in the buckle mechanism: the tail end of the lock tongue is provided with a first locking hole; the sliding block is also provided with a second side surface, the second side surface is opposite to the first side surface, and a second locking hole penetrates through the sliding block from the second side surface to the first side surface; a locking groove is formed in the inner wall of the upper cover, a second elastic element is arranged at the bottom of the locking groove, and a locking block is arranged above the second elastic element; the locking block is provided with a first protrusion and a second protrusion, and when the lock tongue is inserted into or pressed for the second time on the lock tongue fixing part, the first protrusion and the second protrusion are pressed into or popped out of the first locking hole and the second locking hole respectively by a sliding block so as to fix or pop out the lock tongue on the lock tongue fixing part.

Further, a support is further arranged between the sliding block and the inner wall of the upper cover, a first support opening and a second support opening are arranged on the support, the first support opening and a first locking hole of the lock tongue form an overlapped penetrating channel for the first protrusion to pass through, and the second support opening and a second locking hole of the sliding block overlap to form a penetrating channel for the second protrusion to pass through.

The present application also provides a moving body having any one of the above-described latch mechanisms, or having any one of the above-described seatbelt latch devices.

In conclusion, the lock catch is locked and unlocked by a button-free lock catch design and a lock tongue pressing mode, the problems of obvious rebound sound, looseness of the button and the like in the button operation process are solved, the rebound sound is small, looseness is not easy to occur, and brand-new lock catch operation experience is provided for users.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is an overall schematic view of the latch mechanism of the present invention.

Fig. 2 is another overall schematic view of the latching mechanism of the present invention.

Fig. 3 is an enlarged schematic view of the structure of the slider of the latch mechanism of the present invention.

Fig. 4 is yet another overall schematic view of the latching mechanism of the present invention.

Fig. 5 is an enlarged schematic view of the structure of the track groove of the latch mechanism of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. It is to be understood that the terms "upper", "lower", "top", and "bottom" in the following description are used for convenience in understanding and description only and are not intended to indicate or imply that the referenced components or elements must have a particular orientation and are, therefore, not to be considered limiting.

Refer to fig. 1 and 2. As shown in fig. 1, in the preferred embodiment of the present application, a latch mechanism 100 includes a locking bolt 40 and a locking bolt securing portion 20. Referring to fig. 2, the dead bolt part 20 includes a housing 21, a slider 28, a first elastic member 282, a track groove 27, and a first locking member 29.

Specifically, refer to fig. 2, 3, 4, and 5. As shown in fig. 2 and 4, a housing space is formed inside the housing 21, and the first elastic member 282, the track groove 27, and the first latch 29 are disposed in the housing space 25 formed inside the housing 21. As shown in fig. 2 and 3, the sliding block 28 is disposed in the receiving space 25, and has a first side surface 281, and a first end surface 283 and a second end surface 285 which are disposed oppositely, and the first end surface 283 is connected to the locking tongue 40. As shown in fig. 2, the first elastic element 282 is clamped between the second end surface 285 and the inner wall of the housing 21, and when the latch tongue 40 presses the slider 28, the slider 28 presses the first elastic element 282, so that the slider 28 moves in the accommodating space 25. The first elastic member 282 is, for example, a spring. As shown in fig. 2 and 5, the track groove 27 is provided on the slider 28, and the track groove 27 has a guide section 271 and a fixing section 275. As shown in fig. 2, first locking member 29 is protrudingly provided on an inner wall of housing 21, and when locking bolt 40 is inserted into or secondarily pressed against locking bolt fixing portion 20, first locking member 29 moves toward or away from fixing section 275 of trajectory groove 27 along inclined surface 276 of trajectory groove 27, and is fixed to or separated from fixing section 275 when locking bolt 40 is inserted into or secondarily pressed against locking bolt fixing portion 20, so as to lock or unlock locking bolt 40 to locking bolt fixing portion 20.

More specifically, referring to fig. 2, 3 and 5, in the present embodiment, the track groove 27 is recessed on the first side 281 of the slider 28, the fixing section 275 is recessed downward relative to the adjacent guide section 271, and the fixing section 275 is stepped, and when the latch tongue 40 is inserted into the latch tongue fixing portion 20, the first locking member 29 is locked to the fixing section 275. In the present embodiment, the first lock 29 is provided protruding from the inner wall of the housing 21, and has a lever shape with one end fixed to the inner wall of the housing 21 and the other end abutting against the track groove 27. In this embodiment, guide section 271 further includes a guide step 273 to guide first locking member 29 to move in one direction along track groove 27 when locking bolt 40 is inserted or pressed twice against locking bolt securing portion 20. In this embodiment, the guiding segment 271 further includes a first straight surface 272, a first inclined surface 274, a second inclined surface 276, a third inclined surface 278 and a second straight surface 279 which are sequentially arranged in the same direction, for example, clockwise direction, the guiding step 273 connects the first straight surface 272 and the first inclined surface 274, and the fixing segment 275 connects the second inclined surface 276 and the third inclined surface 278. The second and third

inclined surfaces

276 and 278 are each inclined upwardly relative to the fixed section 275 to recess the fixed section 275.

With continued reference to fig. 3 and 5, in the present embodiment, when locking bolt 40 is inserted into locking bolt securing part 20, the end of first locking member 29 moves clockwise along track groove 27, passes first straight surface 272, guide step 273, first inclined surface 274, and second inclined surface 276 in order, moves to securing section 275, and is caught at securing section 275 when locking bolt 40 is completely inserted into locking bolt securing part 20. When the bolt 40 is pulled out of the bolt holder 20, the first locking member 29 is separated from the fixing section 275 and moves to the bottom end of the first straight surface 272 along the third inclined surface 278 and the second straight surface 279 in sequence. Due to the guiding step 273, the end of the first locking member 29 moves from the second straight surface 279 to the first straight surface 272, and starts the next one-way clockwise circulation movement when the locking tongue 40 is inserted into the locking tongue fixing part 20 again.

In the above embodiment, the track groove 27 is substantially shovel-shaped, the first straight surface 272 forms a shovel handle, the first inclined surface 274, the second inclined surface 276, the fixed section 275, the third inclined surface 278 and the second straight surface 279 form a shovel head, and the spoon head is substantially triangular and one side of the spoon head is recessed inwards. In other embodiments, the track groove 27 and the first locking member 29 may be provided in other forms, for example, in another embodiment, the track groove 27 is embedded inside the slider 28 and penetrates a part of the slider 28; similarly, the lever 29 has an irregular projection, one end of which abuts against the track groove 27. Similarly, the moving direction of the first locking member 29 along the track groove 27 is not limited to the clockwise direction, and in one embodiment, the moving direction is set to be the counterclockwise direction.

Referring to fig. 2 and 4, in the present embodiment, the housing 21 includes an upper cover 22 and a lower cover 24 which are assembled by being snap-fitted to each other, the upper cover 22 and the lower cover 24 enclose a receiving space 25, one end of the receiving space 25 has a receiving opening 252, and the receiving opening 252 is used for receiving the latch bolt 40. The other end of the housing space 25 has a connection port 254 for the bracket 26 to be connected to the vehicle body. Since the outer surfaces of the upper cover 22 and the lower cover 24 are sealed, the number of openings or connection ports provided in the housing space 25 is only two. Opening 252 and connection port 254 may be contoured to match the contours of locking bolt 40 and bracket 26, sized to fit through. Like this, whole locking mechanism is closed, and for button type hasp among the prior art, the technical scheme in this embodiment has eliminated the clearance of button and hasp housing, has reduced the risk that piece debris fall into inside and the hasp that leads to of hasp inefficacy.

The above describes track groove 27 and first locking member 29 in locking mechanism 100, and track groove 27 and first locking member 29 can conveniently start or stop the relative movement between locking bolt 40 and locking bolt fixing portion 20, so that the locking bolt can be conveniently pulled out of or inserted into locking bolt fixing portion 20. However, since the track groove 27 and the first locking member 29 cannot bear a large force, in another embodiment of the present application, when the latch mechanism 100 is used for a seat belt as a seat belt latch device, the latch mechanism is further provided with a locking groove and a locking piece.

Specifically, please refer to fig. 2, fig. 3 and fig. 4. In this embodiment, the latch mechanism 100 further includes a latch recess 222 and a latch block 226. More specifically, the end of locking bolt 40 is provided with a first locking hole 42; the slide 28 further has a second side surface opposite to the first side surface 281, and a second locking hole 284 is formed through the slide 28 from the second side surface to the first side surface; a locking groove 222 is formed in the inner wall of the upper cover, a second elastic element 224 is arranged at the bottom of the locking groove 222, the second elastic element 224 is a return spring, for example, and a locking block 226 is arranged above the second elastic element 224; lock block 226 has first protrusion 225 and second protrusion 227, and when lock tongue 40 is inserted into or pressed against lock tongue fixing portion 20 for the second time, first protrusion 225 and second protrusion 227 are pressed into or ejected out of first lock hole 42 and second lock hole 284 by slide block 28, respectively, to fix or eject lock tongue 40 to lock tongue fixing portion 20.

In an embodiment, a bracket 26 is further disposed between the sliding block 28 of the latch mechanism 100 and the inner wall of the upper cover 22, a first bracket opening 262 and a second bracket opening 264 are disposed on the bracket 26, the first bracket opening 262 overlaps the first locking hole 42 of the latch bolt 40 to form a through channel for the first protrusion 225 to pass through, and the second bracket opening 264 overlaps the second locking hole 284 to form a through channel for the second protrusion 227 to pass through, so as to secure the latch bolt 40 and the sliding block 28 to the bracket 26.

In one embodiment, the end of the bracket 26 may be provided with an opening for attachment to the vehicle body. By connecting the seat belt and lock tongue 40 via bracket 26, bracket 26 can receive the force transmitted from the vehicle body, thereby preventing internal structures such as slide 28 and first lock 29 from being damaged during a collision. Accordingly, the housing space 25 is provided at one end with the housing opening 252 and at the other end with a connection port 254 for the bracket 26 to be connected to the vehicle body. Since the outer surfaces of the upper cover 22 and the lower cover 24 are sealed, the number of the storage openings or the connection ports in the storage space 25 is only two. Receiving opening 252 and connection port 254 may be contoured to match the contours of locking bolt 40 and bracket 26, sized to fit through. In the present embodiment, the holder 26 protrudes from the receiving space 25. In another embodiment, the bracket 26 is completely enclosed in the housing space 25 and is connected to the vehicle body by a connector, and the connection port 254 is shaped and sized to match the shape of the connector. Like this, whole locking mechanism is closed, and for button type hasp among the prior art, the technical scheme in this embodiment has eliminated the clearance of button and hasp housing, has reduced the risk that piece debris fall into inside and the hasp that leads to of hasp inefficacy.

After the above-described structural relationship is completed, when locking tongue 40 is inserted into locking tongue fixing portion 20, locking tongue 40 pushes slide 28 to move downward, and one end of lever-like first locking member 29 moves upward with respect to track groove 27 of slide 28, and is locked by fixing portion 275 when reaching recess fixing portion 275 of track groove 27. At this time, the locking block 226 is reset by the second elastic element 224, so that the first protrusion 225 of the locking block 226 passes through the first bracket opening 262 on the bracket 26 to lock with the locking bolt 40. When locking bolt 40 is pressed again, locking bolt 40 pushes slider 28 to continue moving downward a small amount, and lever-like first lock 29 continues to move along track groove 27 on slider 28 and passes over the depression on track groove 27 to move downward along track groove 27. At this time, the slider 28 moves upward by the restoring action of the first elastic member 282 to press the latch block 226 back into the groove 222 of the upper cover 22, and at the same time, push the latch tongue 40 to eject the latch tongue fixing portion 20, thereby unlocking the latch.

The latch device described above can be used for a mobile body such as an electric vehicle and an aluminum alloy vehicle, and in a vehicle provided in an embodiment of the present application, for example, a seat belt or an interior facility of the vehicle, any one of the latch mechanisms or the seat belt latch devices described above is used.

In conclusion, the lock catch is locked and unlocked by a button-free lock catch design and a lock tongue pressing mode, the problems of obvious rebound sound, looseness of the button and the like in the button operation process are solved, and a brand-new lock catch operation experience is provided for a user, so that the rebound sound is small and the looseness is not easy to occur. The button occupies a larger space in the lock catch, and is not suitable for the development trend of small volume and light weight of automobile parts. The button is required by a moving part, a gap exists between the button and the lock catch housing, and the situation that the lock catch fails due to the fact that chippy sundries fall into the lock catch by market feedback is common.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A latch mechanism (100) comprising a locking bolt (40) and a locking bolt securing portion (20), wherein the locking bolt securing portion (20) comprises:

a housing (21) in which a housing space (25) is formed;

a slider (28) arranged in the accommodating space (25) and provided with a first side surface (281), a first end surface (283) and a second end surface (285) which are oppositely arranged, wherein the first end surface (283) is connected with the bolt (40);

the first elastic element (282) is clamped between the second end face (285) and the inner wall of the shell (21), and when the bolt (40) presses the sliding block (28), the sliding block (28) presses the first elastic element (282) so that the sliding block (28) moves in the accommodating space (25);

a track groove (27) which is arranged on the sliding block (28) and comprises a guide section (271) and a fixed section (275); and

and the first locking piece (29) is arranged on the inner wall of the shell (21), when the lock tongue (40) is inserted into or presses the lock tongue fixing part (20) for the second time, the first locking piece (29) moves towards or away from the fixing section of the track groove (27) along the guide section (271) of the track groove (27), and is fixed on or separated from the fixing section (275) when the lock tongue (40) is inserted into or presses the lock tongue fixing part (20) for the second time, so that the lock tongue (40) is locked on or unlocked from the lock tongue fixing part (20).

2. The latch mechanism (100) of claim 1 wherein: the track groove (27) is concavely embedded on the first side surface (281) of the sliding block (28), the fixing section (275) is recessed downwards relative to the guide section (271) of the adjacent part and is in a step shape, and when the bolt (40) is inserted into the bolt fixing part (20), the first locking piece clamp (29) is stopped at the fixing section (275).

3. Latching mechanism (100) according to claim 1 or 2, characterized in that: the guide section (271) comprises a guide step (273) to guide the first locking piece (29) to move in one direction along the track groove (27) when the locking tongue (40) is inserted or pressed twice on the locking tongue fixing part (20).

4. The latch mechanism (100) of claim 3 wherein the guide segment (271) further comprises a first straight surface (272), a first inclined surface (274), a second inclined surface (276), a third inclined surface (278) and a second straight surface (279) arranged in sequence along the same direction, the guide step (273) connects the first straight surface (272) and the first inclined surface (274), and the fixed segment (275) connects the second inclined surface (276) and the third inclined surface (278).

5. Latching mechanism (100) according to claim 1 or 2, characterized in that: the first locking piece (29) is arranged on the inner wall of the shell (21) in a protruding mode and is in a poking rod shape, one end of the first locking piece is fixed on the inner wall of the shell (21), and the other end of the first locking piece abuts against the track groove (27).

6. The latch mechanism (100) of claim 1, wherein the housing (21) includes an upper cover (22) and a lower cover (24) that snap together, the upper cover (22) and the lower cover (24) enclose the receiving space (25), one end of the receiving space (25) has a receiving opening (252), and the receiving opening (252) is used for receiving the latch bolt (22).

7. A snapping mechanism (100) according to claim 6, wherein said number of openings is only two.

8. A seatbelt buckle device, characterized in that it has a buckle mechanism (100) according to any one of claims 1 to 7, and in that in the buckle mechanism (100):

the tail end of the lock tongue (40) is provided with a first locking hole (42);

the sliding block (28) is also provided with a second side surface which is opposite to the first side surface (282), and a second locking hole (284) is also arranged in the sliding block (28) in a penetrating way from the second side surface to the first side surface (282);

a locking groove (222) is formed in the inner wall of the upper cover (22), a second elastic element (224) is arranged at the bottom of the locking groove (222), and a locking block (226) is arranged above the second elastic element (222);

the locking block (226) is provided with a first protrusion (225) and a second protrusion (227), and when the locking bolt (40) is inserted into or pressed against the locking bolt fixing part (20) for the second time, the first protrusion (225) and the second protrusion (227) are respectively pressed into or ejected out of the first locking hole (42) and the second locking hole (284) by a sliding block (28), so that the locking bolt (40) is fixed to or ejected out of the locking bolt fixing part (20).

9. The safety belt buckle device according to claim 6, characterized in that a bracket (26) is further arranged between the sliding block (28) and the inner wall of the upper cover (22), a first bracket opening (262) and a second bracket opening (264) are arranged on the bracket (26), the first bracket opening (262) and the first locking hole (42) of the locking bolt (40) form an overlapped through channel for the first protrusion (225) to pass through, and the second bracket opening (264) and the second locking hole (284) of the sliding block (28) overlap to form a through channel for the second protrusion (227) to pass through.

10. A moving body characterized by having a buckle mechanism according to any one of claims 1 to 7 or having a seatbelt buckle device according to any one of claims 8 to 9.