CN115027408A - Locking mechanism for safety belt coiler - Google Patents
Locking mechanism for safety belt coiler Download PDFInfo
- Publication number
- CN115027408A CN115027408A CN202210657466.3A CN202210657466A CN115027408A CN 115027408 A CN115027408 A CN 115027408A CN 202210657466 A CN202210657466 A CN 202210657466A CN 115027408 A CN115027408 A CN 115027408A
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- locking
- block
- fixedly connected
- safety belt
- mounting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 53
- 238000011084 recovery Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 abstract description 10
- 230000001681 protective effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention discloses a locking mechanism for a safety belt retractor, which comprises two opposite locking frames, wherein a driving shaft is arranged in the middle of each locking frame, one side, far away from the driving shaft, of one locking frame is provided with a first mounting frame block and a second mounting frame block, one end, far away from the driving shaft, of the other locking frame is provided with an elastic recovery mechanism, and one end, far away from the elastic recovery mechanism, of the driving shaft is fixedly connected with a lengthened positioning shaft. This kind of locking mechanism for safety belt coiler through setting up installation piece one and installation piece two, can play the purpose of locking safety belt coiler respectively, and two kinds of locking structures carry out locking work to the safety belt, guarantee the safety belt in the locking, and the security is better, prevents that one of them locking mechanism from becoming invalid, and safety belt locking function is malfunctioning, unable better guarantee personal safety, through setting up centrifugal locking piece and locking ratchet ring one, pulls down fast at abrupt external force, centrifugal structure skew.
Description
Technical Field
The invention relates to the technical field of safety belt locking mechanisms, in particular to a locking mechanism for a safety belt coiler.
Background
Vehicle safety belts are an important component of vehicle occupant restraint systems, and in particular, provide protection to vehicle occupants from or to minimize injury during a traffic accident. With the increasing amount of vehicle reserves, the requirements of vehicle users on the safety performance of vehicle safety belts are higher and higher.
When the car collides, because the sensor of car blet needs certain response time just can react and realize the locking, current locking mechanism has some weak points, and locking mechanism design is single, if locking mechanism breaks down, then can't guarantee that the quick lock that the blet can be smooth stops, and safety belt locking function is malfunctioning, unable better guarantee personal safety. We have therefore developed this and have proposed a locking mechanism for a seat belt retractor.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a locking mechanism for a safety belt retractor, which comprises two opposite locking frames, wherein a driving shaft is arranged in the middle of each locking frame, one side, far away from the driving shaft, of one locking frame is provided with a first mounting frame block and a second mounting frame block, one end, far away from the driving shaft, of the other locking frame is provided with an elastic force recovery mechanism, one end, far away from the elastic force recovery mechanism, of the driving shaft is fixedly connected with an elongated positioning shaft, the second mounting frame block is fixedly connected to the surface of the locking frame, the middle of the second mounting frame block is fixedly connected with a second locking ratchet ring, a driving sleeve is arranged in the second locking ratchet ring, the first mounting frame block is fixedly connected to the surface of the second mounting frame block, one side, far away from the second mounting frame block, of the first mounting frame block is fixedly connected with a first locking ratchet ring, and the middle of the first locking ratchet ring is provided with a centrifugal locking sheet, the lengthened positioning shaft sequentially penetrates through the second mounting frame block and the first mounting frame block.
As a preferable technical solution of the present invention, the elastic force recovery mechanism includes a spiral spring piece, one end of the driving shaft near the elastic force recovery mechanism is fixedly connected with a locking shaft, and the locking shaft passes through the locking frame through a bearing and extends to one side of the locking frame.
As a preferred technical solution of the present invention, one end of the spiral spring piece is fixedly connected to the locking shaft, and the other end of the spiral spring piece is fixedly connected to a side wall of the locking frame through the positioning block, and the surface of the spiral spring piece is covered with an elastic piece protecting cover which is installed on the side wall of the locking frame.
As a preferred technical scheme of the present invention, the lengthened positioning shaft penetrates through one end of the first mounting bracket block and is sleeved in the driving sleeve and is fixedly connected with the driving sleeve, a plurality of locking balls are arranged between the driving sleeve and an inner ring of the second locking ratchet ring, a second locking ratchet groove is formed in the inner ring of the second locking ratchet ring, the second locking ratchet groove and the locking balls are arranged in a one-to-one correspondence manner, the second locking ratchet groove is an arc groove and is arranged in the second locking ratchet ring in an annular array at equal intervals, and the locking balls are movably arranged in the second locking ratchet groove.
As a preferable technical scheme of the invention, one end of the lengthened positioning shaft movably penetrates through the middle part of the first mounting frame block and is arranged at the circle center of the first locking ratchet ring, the first mounting frame block is connected to the surface of the second mounting frame block through a positioning screw block, and the lengthened positioning shaft movably penetrates through the locking frame through a bearing.
As a preferred technical scheme of the invention, a guide clamping block is fixedly sleeved on the surface of the lengthened positioning shaft, the guide clamping block is of a C-shaped structure, a centrifugal locking piece is movably sleeved on the surface of the guide clamping block, a centrifugal groove is formed in the middle of the centrifugal locking piece, a limiting convex block is arranged in the centrifugal groove, and the limiting convex block is movably arranged on the surface of an opening of the guide clamping block.
As a preferable technical scheme of the invention, one end of the lengthened positioning shaft, which is close to the first mounting frame block, is provided with an annular adjusting groove, the annular adjusting groove and the lengthened positioning shaft have the same axial direction, and the guide clamping block is sleeved on the surface of the adjusting groove.
As a preferred technical scheme of the invention, a locking buckle protective cover is installed on the locking bracket far away from the elastic force recovery mechanism, the locking buckle protective cover covers the surfaces of the first mounting bracket block and the second mounting bracket block, a bearing seat is fixedly connected to the inner wall of one side, close to the second mounting bracket block, of the locking buckle protective cover, and one end, far away from the driving shaft, of the lengthened positioning shaft is fixedly connected to the inner ring of the bearing seat.
As a preferable technical scheme of the invention, an installation seat plate is fixedly connected between the two locking frames, and two ends of the installation seat plate are respectively and fixedly connected with installation lug blocks.
The invention has the beneficial effects that:
the locking mechanism for the safety belt retractor can respectively lock the safety belt retractor by arranging the first mounting block and the second mounting block, the safety belt can be locked by the two locking structures, the safety of the safety belt is better when the safety belt is locked, the failure of one locking mechanism is prevented, the locking function of the safety belt is failed, and the personal safety cannot be better guaranteed;
this kind of locking mechanism for safety belt coiler through setting up locking ratchet ring two, drive cover and locking ball, mutually supports between the structure, and the drive cover is in the fast rotation time, extrudees each other through locking ball, drive cover and locking ratchet ring two, locks the position of drive cover, prevents that it from continuing to rotate, and the operating condition of restriction coiler ensures personnel's in the car safety.
Drawings
FIG. 1 is a perspective view of a locking mechanism for a seat belt retractor of the present invention;
FIG. 2 is a perspective view of a mounting block of the locking mechanism for a seat belt retractor of the present invention;
FIG. 3 is an exploded view of a mounting block of the locking mechanism for a seat belt retractor of the present invention;
FIG. 4 is a perspective view of a spring return mechanism of the locking mechanism for a seat belt retractor of the present invention;
FIG. 5 is an exploded view of a locking mechanism for a seat belt retractor of the present invention;
FIG. 6 is a second perspective view of a mounting bracket block of the locking mechanism for a seat belt retractor of the present invention;
fig. 7 is a perspective view of a locking buckle protecting cover of a locking mechanism for a seat belt retractor according to the present invention.
In the figure: 1. a locking frame; 2. a drive shaft; 3. a spring protective cover; 4. a locking buckle protective cover; 5. mounting a seat plate; 6. mounting a first frame block; 7. mounting a second frame block; 8. a first locking ratchet ring; 9. a guide clamping block; 10. a centrifugal locking piece; 11. lengthening the positioning shaft; 12. an adjustment groove; 13. a second locking ratchet ring; 14. a locking ball; 15. a drive sleeve; 16. a helical spring plate; 17. a bearing seat; 18. and (5) positioning the screw block.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example one
As shown in fig. 1-4, the locking mechanism for a safety belt retractor comprises two opposite locking frames 1, a driving shaft 2 is arranged in the middle of the locking frames 1, one side of one locking frame 1, which is far away from the driving shaft 2, is provided with a first mounting frame block 6 and a second mounting frame block 7, one end of the other locking frame 1, which is far away from the driving shaft 2, is provided with an elastic force recovery mechanism, one end of the driving shaft 2, which is far away from the elastic force recovery mechanism, is fixedly connected with an elongated positioning shaft 11, the second mounting frame block 7 is fixedly connected to the surface of the locking frame 1, the middle of the second mounting frame block 7 is fixedly connected with a second locking ratchet ring 13, a driving sleeve 15 is arranged in the second locking ratchet ring 13, the first mounting frame block 6 is fixedly connected to the surface of the second mounting frame block 7, one side of the first mounting frame block 6, which is far away from the second mounting frame block 7, is fixedly connected with a first locking ratchet ring 8, and the middle of the first locking ratchet ring 8 is provided with a centrifugal plate 10, the lengthened positioning shaft 11 sequentially penetrates through the second mounting frame block 7 and the first mounting frame block 6.
The elastic force recovery mechanism comprises a spiral spring piece 16, one end, close to the elastic force recovery mechanism, of the driving shaft 2 is fixedly connected with a locking shaft, and the locking shaft penetrates through the locking frame 1 through a bearing in a rotating mode and extends to one side of the locking frame 1.
One end of the spiral spring piece 16 is fixedly connected to the locking shaft, the other end of the spiral spring piece is fixedly connected to the side wall of the locking frame 1 through the positioning block, the surface of the spiral spring piece 16 is covered with an elastic piece protecting cover 3, and the elastic piece protecting cover 3 is installed on the side wall of the locking frame 1.
The driving shaft 2 normally rotates, the function of elastic recovery is achieved through the spiral spring piece 16, the purpose of locking the safety belt retractor can be achieved respectively through the arrangement of the first mounting block 6 and the second mounting block 7, the safety belt is locked through the two locking structures, the safety of the safety belt is guaranteed to be better when the safety belt is locked, the failure of one locking mechanism is prevented, the safety belt locking function is failed, and the personal safety cannot be guaranteed better, the centrifugal locking piece 10 is supported by centrifugal external force when sudden external force is rapidly pulled down through the arrangement of the centrifugal locking piece 10 and the first locking ratchet ring 8, the convex block on the centrifugal locking piece 10 is clamped in the guide clamping block 9, the locking ratchet is fixed on the outer wall of one side of the centrifugal locking piece 10, the locking grooves are arranged in an annular array at the inner ring of the first locking ratchet ring 8, the locking grooves are outwards exposed by centrifugal force and contact with the locking ratchet grooves, the centrifugal structure deviates, the movement condition of the driving shaft 2 is quickly locked, and the purpose of safe locking is achieved;
example two
As shown in fig. 5-7, the locking mechanism for a safety belt retractor comprises two opposite locking frames 1, a driving shaft 2 is arranged in the middle of each locking frame 1, one side, away from the driving shaft 2, of one locking frame 1 is provided with a first mounting frame block 6 and a second mounting frame block 7, one end, away from the elastic force recovery mechanism, of the driving shaft 2 is fixedly connected with an elongated positioning shaft 11, the second mounting frame block 7 is fixedly connected to the surface of the locking frame 1, the middle of the second mounting frame block 7 is fixedly connected with a second locking ratchet ring 13, a driving sleeve 15 is arranged in the second locking ratchet ring 13, and the first mounting frame block 6 is fixedly connected to the surface of the second mounting frame block 7.
Wherein, a pot head that extension location axle 11 passed mounting bracket piece 6 is established in the inside of drive cover 15 to with drive cover 15 fixed connection, be provided with a plurality of locking balls 14 between the inner ring of drive cover 15 and locking ratchet ring two 13, locking ratchet groove two has been seted up to the inner ring department of locking ratchet ring two 13, and locking ratchet groove two sets up with locking ball 14 one-to-one, locking ratchet groove two is the arc recess, and be the equidistant setting in locking ratchet ring two 13 of ring type array, locking ball 14 activity sets up in locking ratchet groove two.
One end of the lengthened positioning shaft 11 movably penetrates through the middle of the first mounting frame block 6 and is arranged at the circle center of the first locking ratchet ring 8, the first mounting frame block 6 is connected to the surface of the second mounting frame block 7 through the positioning screw block 18, and the lengthened positioning shaft 11 movably penetrates through the locking frame 1 through a bearing.
Wherein, the fixed cover in surface of extension location axle 11 is equipped with direction fixture block 9, and direction fixture block 9 is "C" type structure, and the surface activity cover of direction fixture block 9 is equipped with centrifugal locking piece 10, and centrifugal groove has been seted up at centrifugal locking piece 10 middle part, and the centrifugal groove is provided with spacing lug, and spacing lug activity sets up on the opening part surface of direction fixture block 9.
Wherein, the end of the lengthened positioning shaft 11 close to the first mounting block 6 is provided with an annular adjusting groove 12, the axial direction of the annular adjusting groove 12 is the same as that of the lengthened positioning shaft 11, and the guide clamping block 9 is sleeved on the surface of the adjusting groove 12.
Wherein, keep away from and install locking buckle protective cover 4 on the locking frame 1 of elasticity recovery mechanism, the locking is detained protective cover 4 and is covered on the surface of mount block one 6 and mount block two 7, and fixedly connected with bearing frame 17 on the one side inner wall that is close to mount block two 7 on the protective cover 4 is detained in the locking, and the one end fixed connection that keeps away from drive shaft 2 on the extension location axle 11 is in the inner ring department of bearing frame 17.
Wherein, fixedly connected with installation bedplate 5 between two locking frame 1, the both ends of installation bedplate 5 fixedly connected with installation ear piece respectively.
The installation seat plate 5 is fixedly installed, the locking ratchet ring II 13, the driving sleeve 15 and the locking balls 14 are arranged, the structures are mutually matched, when the installation seat plate is normally stretched, the locking balls 14 rotate between the locking ratchet ring II 13 and the driving sleeve 15, if the driving sleeve 15 rotates rapidly, the locking balls 14 cannot timely follow the driving sleeve 15 to rotate, the driving sleeve 15 moves rapidly in the locking ratchet ring II 13, the locking balls 14 are subjected to sudden external force, the rotating speed of the driving sleeve 15 cannot be rapidly matched, the locking balls 14 cannot rotate and can only move along the direction of the driving sleeve 15, after the locking balls 14 move out of the locking ratchet groove II, the locking balls 14 are extruded between the driving sleeve 15 and the locking ratchet ring II 13, the driving sleeve 15 and the locking ratchet ring II 13 are mutually extruded through the locking balls 14, the driving sleeve 15 and the locking ratchet ring II 13, the position of the driving sleeve 15 is locked, and the continuous rotation of the driving sleeve 15 is prevented, the working state of the winder is limited, and the safety of personnel in the vehicle is guaranteed.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A locking mechanism for a safety belt retractor comprises two opposite locking frames (1) and is characterized in that a driving shaft (2) is arranged in the middle of each locking frame (1), one side, far away from the driving shaft (2), of each locking frame (1) is provided with a first mounting frame block (6) and a second mounting frame block (7), the other end, far away from the driving shaft (2), of each locking frame (1) is provided with an elastic recovery mechanism, one end, far away from the elastic recovery mechanism, of the driving shaft (2) is fixedly connected with a lengthened positioning shaft (11), the second mounting frame block (7) is fixedly connected to the surface of each locking frame (1), the middle of each second mounting frame block (7) is fixedly connected with a second locking ratchet ring (13), a driving sleeve (15) is arranged in each second locking ratchet ring (13), and the first mounting frame block (6) is fixedly connected to the surface of the second mounting frame block (7), one side face, far away from the second mounting frame block (7), of the first mounting frame block (6) is fixedly connected with a first locking ratchet ring (8), the middle of the first locking ratchet ring (8) is provided with a centrifugal locking sheet (10), and the lengthened positioning shaft (11) penetrates through the second mounting frame block (7) and the first mounting frame block (6) in sequence.
2. The locking mechanism for the safety belt retractor according to claim 1, wherein the elastic force recovery mechanism comprises a spiral spring piece (16), one end of the driving shaft (2) close to the elastic force recovery mechanism is fixedly connected with a locking shaft, and the locking shaft passes through the locking frame (1) through a bearing in a rotating manner and extends to one side of the locking frame (1).
3. The locking mechanism for a safety belt retractor according to claim 2, wherein one end of the spiral spring plate (16) is fixedly connected to the locking shaft, and the other end of the spiral spring plate is fixedly connected to the side wall of the locking frame (1) through a positioning block, the surface of the spiral spring plate (16) is covered with the elastic piece protecting cover (3), and the elastic piece protecting cover (3) is installed on the side wall of the locking frame (1).
4. The locking mechanism for the safety belt retractor according to claim 1, wherein the lengthened positioning shaft (11) penetrates through one end of the first mounting frame block (6) and is sleeved inside the driving sleeve (15) and fixedly connected with the driving sleeve (15), a plurality of locking balls (14) are arranged between the driving sleeve (15) and an inner ring of the second locking ratchet ring (13), a second locking ratchet groove is formed in the inner ring of the second locking ratchet ring (13) and corresponds to the locking balls (14), the second locking ratchet groove is an arc-shaped groove and is equidistantly arranged in the second locking ratchet ring (13) in a ring array, and the locking balls (14) are movably arranged in the second locking ratchet groove.
5. The locking mechanism for the safety belt retractor according to claim 1, wherein one end of the lengthened positioning shaft (11) movably penetrates through the middle of the first mounting block (6) and is arranged at the center of the first locking ratchet ring (8), the first mounting block (6) is connected to the surface of the second mounting block (7) through a positioning screw block (18), and the lengthened positioning shaft (11) movably penetrates through the locking frame (1) through a bearing.
6. The locking mechanism for the safety belt retractor according to claim 5, wherein a guide clamping block (9) is fixedly sleeved on the surface of the lengthened positioning shaft (11), the guide clamping block (9) is of a C-shaped structure, a centrifugal locking piece (10) is movably sleeved on the surface of the guide clamping block (9), a centrifugal groove is formed in the middle of the centrifugal locking piece (10), a limiting convex block is arranged in the centrifugal groove, and the limiting convex block is movably arranged on the surface of an opening of the guide clamping block (9).
7. The locking mechanism for the safety belt retractor according to claim 6, wherein an annular adjusting groove (12) is formed in one end, close to the first mounting frame block (6), of the lengthened positioning shaft (11), the annular adjusting groove (12) and the lengthened positioning shaft (11) are in the same axis direction, and the guide clamping block (9) is sleeved on the surface of the adjusting groove (12).
8. The locking mechanism for the safety belt retractor according to claim 1, wherein a locking buckle protecting cover (4) is installed on the locking rack (1) far away from the elastic force recovery mechanism, the locking buckle protecting cover (4) covers the surfaces of the first mounting rack block (6) and the second mounting rack block (7), a bearing seat (17) is fixedly connected to the inner wall of the locking buckle protecting cover (4) close to the second mounting rack block (7), and one end of the lengthened positioning shaft (11) far away from the driving shaft (2) is fixedly connected to the inner ring of the bearing seat (17).
9. The locking mechanism for the safety belt retractor according to claim 1, wherein a mounting seat plate (5) is fixedly connected between the two locking frames (1), and mounting lugs are fixedly connected to two ends of the mounting seat plate (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210657466.3A CN115027408B (en) | 2022-06-10 | 2022-06-10 | Locking mechanism for safety belt retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210657466.3A CN115027408B (en) | 2022-06-10 | 2022-06-10 | Locking mechanism for safety belt retractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115027408A true CN115027408A (en) | 2022-09-09 |
| CN115027408B CN115027408B (en) | 2023-05-05 |
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ID=83125359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210657466.3A Active CN115027408B (en) | 2022-06-10 | 2022-06-10 | Locking mechanism for safety belt retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115027408B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119706581A (en) * | 2025-02-21 | 2025-03-28 | 昆明野牛科技有限公司 | Hoisting equipment for steel structure installation |
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2022
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| US4925124A (en) * | 1987-04-03 | 1990-05-15 | Pacific Scientific Company | Dual-mode inertia reel system |
| US20040124625A1 (en) * | 2002-12-24 | 2004-07-01 | Bae Gi Young | Vehicular seatbelt retractor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119706581A (en) * | 2025-02-21 | 2025-03-28 | 昆明野牛科技有限公司 | Hoisting equipment for steel structure installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115027408B (en) | 2023-05-05 |
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