CN109572615B - Safety belt guide ring - Google Patents

Safety belt guide ring Download PDF

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Publication number
CN109572615B
CN109572615B CN201910063986.XA CN201910063986A CN109572615B CN 109572615 B CN109572615 B CN 109572615B CN 201910063986 A CN201910063986 A CN 201910063986A CN 109572615 B CN109572615 B CN 109572615B
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CN
China
Prior art keywords
framework
guide ring
safety belt
hole
belt guide
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Active
Application number
CN201910063986.XA
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Chinese (zh)
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CN109572615A (en
Inventor
宗接才
冯志斌
潘振华
陈义剑
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Yuhuan Jiaxin Auto Parts Co ltd
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Yuhuan Jiaxin Auto Parts Co ltd
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Publication of CN109572615A publication Critical patent/CN109572615A/en
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Publication of CN109572615B publication Critical patent/CN109572615B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/18Anchoring devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/18Anchoring devices
    • B60R2022/1818Belt guides

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

The invention provides a safety belt guide ring, and belongs to the technical field of vehicles. The safety belt guide ring solves the problem that the metal sheet in the existing safety belt guide ring has the possibility of falling off. The safety belt guide ring comprises a metal framework and a plastic piece; the metal framework is provided with a strip-shaped guide hole, and the cross sections of one side surface and two end surfaces of the guide hole are arc-shaped; the plastic piece is fixedly connected with the metal framework, and a protection part for coating the other side face of the guide hole is arranged in the plastic piece. When the safety belt guide ring is used, the safety belt is pressed on the metal framework, so that the friction force between the safety belt and the safety belt guide ring is reduced, and the strength of the safety belt guide ring is ensured. The safety belt guide ring is equivalent to the fact that the metal sheet and the metal framework are connected into a whole, so that the problems that the metal sheet falls off, gaps, burrs, steps and the like are easy to generate between the metal sheet and a plastic part are avoided. The other side face of the guide hole in the guide ring of the safety belt is coated by a plastic part, so that the technical requirement of the other side face of the guide hole in the metal framework is reduced.

Description

Safety belt guide ring
Technical Field
The invention belongs to the technical field of vehicles, and relates to a vehicle part, in particular to a safety belt guide ring.
Background
The belt guide ring is one of the important components in the vehicle belt assembly, and is located beside the headrest of the seat and mounted on the vehicle jamb by bolts or rivets. There are many documents related to a seat belt guide ring, such as an automobile seat belt guide ring (grant bulletin number CN 203485873U) and an automobile seat belt guide ring (grant bulletin number CN 204184309U) described in chinese patent literature. The existing safety belt guide ring comprises an annular framework made of metal and plastic pieces wrapped outside the annular framework, the safety belt penetrates through the strip-shaped holes of the safety belt guide ring, and sliding friction is formed between the safety belt and the guide ring when the safety belt moves.
The plastic is easy to age and wear, and after the guide ring of the safety belt is used for a long time, the plastic part has the possibility of wear transition and even cracking. When a collision accident occurs to the vehicle, the tension of the safety belt is increased sharply, the pressure of the safety belt to the guide ring is also increased sharply, the friction between the safety belt and the guide ring is possibly excessive, and even plastic parts are possibly cracked, so that the annular framework and fragments cut the safety belt.
For this purpose, a new type of car seat belt guide ring (grant bulletin number CN 206012534U) has been proposed, in which a smooth and textured metal sheet is wrapped around the bottom of the guide opening. Although the metal sheet can reduce the friction force between the safety belt and the guide ring, some new technical problems are generated, (1) the process is complex, and the manufacturing cost is high; (2) the metal sheet has the possibility of falling off; (3) gaps, burrs and steps are easy to generate between the metal sheets and the plastic parts; there is a problem in that the yield of the product is low.
Disclosure of Invention
The invention provides a safety belt guide ring, and aims to solve the technical problem of how to provide a safety belt guide ring with another structure to improve the safety performance of safety belt protection.
The technical problems to be solved by the invention can be realized by the following technical proposal: a safety belt guide ring comprises a metal framework and a plastic piece; the metal framework is provided with a strip-shaped guide hole, and the cross sections of one side surface and two end surfaces of the guide hole are arc-shaped; the plastic piece is fixedly connected with the metal framework, the plastic piece is provided with a protection part which covers the other side face of the guide hole.
A safety belt guide opening for the safety belt to pass through is formed among the side surface of the protection part in the safety belt guide ring, one side wall of the guide hole and two end walls of the guide hole; the side of the protection part is an arc surface, so that all the side surfaces of the safety belt guide opening are arc surfaces, and the sliding flexibility of the safety belt is ensured. When the safety belt guide ring is used, the safety belt is pressed on the metal framework, so that the friction force between the safety belt and the safety belt guide ring is reduced, and the strength of the safety belt guide ring is ensured. Compared with the prior art, the safety belt guide ring is equivalent to the fact that the metal sheet and the metal framework are connected into a whole, and the problems that the metal sheet falls off and gaps, burrs, steps and the like are easy to generate between the metal sheet and a plastic part are avoided.
The other side face of the guide hole in the guide ring of the safety belt is coated by a plastic part, so that the technical requirement of the other side face of the guide hole in the metal framework is reduced, one side face and two end faces of the guide hole are easier to mold, the manufacturing difficulty of the metal framework is further reduced, the smoothness of one side face and two end faces of the guide hole is improved, and the manufacturing cost is reduced.
In summary, the safety belt is contacted with the arc surface of the metal material for a long time and basically not contacted with the plastic part when the safety belt guide ring is used, so that the safety belt guide ring has the advantages of difficult abrasion, difficult fragmentation, small wiping force between the safety belt and high use safety.
Drawings
Fig. 1 and 2 are schematic perspective views showing different angles of view of a webbing guide ring in the first embodiment.
Fig. 3 is an exploded view of a webbing guide ring in the first embodiment.
Fig. 4 is a schematic front view of a webbing guide ring according to the first embodiment.
Fig. 5 is a schematic cross-sectional view of A-A of fig. 4.
Fig. 6 is a schematic view of the front view of the metal frame in the webbing guide ring.
Fig. 7 is a schematic cross-sectional view of the structure B-B of fig. 6.
FIG. 8 is a schematic cross-sectional view of the structure of C-C in FIG. 6.
Fig. 9 is a schematic cross-sectional view of D-D in fig. 6.
Fig. 10 and 11 are schematic perspective views showing different angles of view of the webbing guide ring in the second embodiment.
Fig. 12 is a schematic front view of a webbing guide ring in the second embodiment.
FIG. 13 is a schematic cross-sectional view of E-E of FIG. 12.
FIG. 14 is a schematic cross-sectional view of F-F of FIG. 12.
Fig. 15 and 16 are schematic views showing different view angles of an exploded structure of a webbing guide ring in the second embodiment.
In the figure, 1, a metal framework; 1a, a guide hole; 1b, the upper part of the framework; 1b1, a flat plate region; 1b2, a connection region; 1b3, an extension region; 1c, the lower part of the framework; 1d, the middle part of the framework; 1e, arc surface; 1f, grooves; 2. a plastic member; 2a, a protective part; 2a1, a clamping groove; 2b, a hole sleeve part; 2c, a filling part; 2d, a connecting part; 2d1, avoiding holes; 2e, a rotation limiting part; 2f, a light shielding part; 2g, clamping foot parts; 2g1, barbs; 3. a seat belt guide; 4. a bolt; 5. positioning caps; 6. and a connection hole.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1 to 9, the webbing guide ring includes a metal frame 1 and a plastic member 2.
As shown in fig. 4 to 9, the metal skeleton 1 is of an integral structure, a guide hole 1a is formed in the metal skeleton 1, the guide hole 1a is in a straight strip shape, and the cross sections of one side surface and two end surfaces of the guide hole 1a are arc-shaped; the structure enables the safety belt to move on the smooth arc surface 1e, reduces friction force and avoids the scratch of the safety belt. The two ends of the guide hole 1a are arc-shaped, so that the transverse side surface and the two end surfaces of the guide hole 1a are smoothly transited, and when the safety belt moves transversely relative to the guide hole 1a, the arc-shaped end surfaces ensure the smoothness of the movement of the safety belt, reduce friction force and avoid the scratch of the safety belt.
The metal framework 1 comprises a framework upper part 1b positioned above the guide hole 1a, a framework lower part 1c positioned below the guide hole 1a and two framework middle parts 1d positioned outside two ends of the guide hole 1a respectively; the upper frame part 1b and the lower frame part 1c are connected through two middle frame parts 1 d. The top surface of the framework lower part 1c is an arc surface 1e relative to the thickness direction; the inner side surface of the middle part 1d of the skeleton is concave arc-shaped, and the inner side surface of the middle part 1d of the skeleton is also arc-shaped surface 1e relative to the thickness direction.
The metal framework 1 is of a plate-shaped structure, so that the upper part 1b, the lower part 1c and the middle part 1d of the framework are plate-shaped members; the lower framework part 1c and the middle framework part 1d are arc-shaped, grooves 1f are formed in the outer sides of the lower framework part 1c and the middle framework part 1d, and the grooves 1f of the lower framework part 1c are communicated with the grooves 1f of the middle framework part 1 d. The metal skeleton 1 has the advantages of light weight and high strength.
The front outer edge areas of the framework lower part 1c and the framework middle part 1d are inclined backwards, so that an included angle beta is formed between the front side surface of the framework lower part 1c and the front side surface and the vertical surface of the framework middle part 1d; this structure makes the seat belt move without contacting the front side surface of the frame lower portion 1c and the front side surface of the frame middle portion 1d, even if the seat belt moves only on the circular arc surface 1e, friction between the seat belt and the metal frame 1 is reduced and the possibility of belt scoring is reduced.
The upper part 1b of the metal skeleton 1 includes a flat plate region 1b1 and a connecting region 1b2 connecting the flat plate region 1b1 with the two skeleton portions 1 d. The framework upper part 1b is positioned at the rear side of the metal framework 1, so that a space L1 is provided between the front edge of the framework upper part 1b and the front edge of the framework lower part 1 c; in other words, a large first installation space is formed between the front edge of the framework upper portion 1b and the front edge of the framework lower portion 1c, and the first installation space facilitates the installation of the vehicle interior trim. The flat plate area 1b1 is provided with a connecting hole 6, the flat plate area 1b1 is positioned at the rear side of the framework upper part 1b, namely, the flat plate area 1b1 is positioned at the rear sides of the two framework middle parts 1d, so that a distance L2 is reserved between the front side surface of the flat plate area 1b1 and the front edge of the framework upper part 1 b; in other words, the front side of the flat plate region 1b1 forms a larger second installation space that facilitates the installation of the bolts 4. The first installation space and the second installation space achieve an improvement in compactness of the vehicle seat belt guide structure. The cross section of the connecting area 1b2 is curved, and the structure can improve the rigidity of the connecting area 1b2, namely, the possibility of deformation of the metal framework 1 when the belt guide ring is subjected to impact tension is obviously reduced.
The plastic part 2 is of an integrated structure, and the plastic part 2 is fixedly connected with the metal framework 1; specifically, the plastic part 2 is coated on the metal skeleton 1 by injection molding. The plastic part 2 comprises a protection part 2a wrapping the other side surface of the guide hole 1a, a hole sleeve part 2b penetrating the connecting hole 6, a filling part 2c embedded in the groove 1f, and a connecting part 2d positioned at the rear side of the metal framework 1 and connected with the filling part 2c, the hole sleeve part 2b and the protection part 2 a. The plastic part 2 and the manufacturing method of the plastic part 2 have the advantages of improving the connection firmness and the connection stability between the plastic part 2 and the metal framework 1, and reducing the manufacturing cost of the safety belt guide ring.
The protection part 2a wraps the bottom edge of the flat plate area 1b1 in the framework upper part 1b, so that the technical requirement of the bottom edge of the flat plate area 1b1 is reduced, and the manufacturing difficulty of the metal framework 1 is further reduced. The protection part 2a is positioned in the guide hole 1a, and a safety belt guide opening 3 for the safety belt to pass through is formed between the side surface of the protection part 2a and one side surface and two end surfaces of the guide hole 1 a; the shape and the size of the webbing guide opening 3 can be adjusted by adjusting the shape of the protection portion 2a, so that the webbing guide opening 3 is more matched with the webbing, in other words, the structure improves the versatility of the metal frame 1.
The upper part 1b of the framework is provided with an extension area 1b3 which extends into the guide hole 1a, and the extension area 1b3 is connected with the bottom edge of the flat plate area 1b 1; the extension area 1b3 is embedded into the protection part 2a, so that the structure not only can ensure the connection firmness between the protection part 2a and the upper part 1b of the framework, but also can reduce the height of the protection part 2a covering the bottom edge of the flat plate area 1b1, thereby improving the structural compactness of the safety belt guide ring; the structure can also improve the connection firmness and stability between the plastic piece 2 and the metal framework 1.
The outer side surface of the hole sleeve part 2b is provided with a positioning groove 1f, the edge part of the connecting hole 6 is embedded into the positioning groove 1f, the structure can improve the connection firmness and stability between the plastic part 2 and the metal framework 1, and the contact between the bolt 4 penetrating through the connecting hole 6 and the metal framework 1 is avoided, so that the metal collision noise is avoided between the bolt 4 and the metal framework 1.
The connecting part 2d is connected with two rotation limiting parts 2e, and when the limiting part is positioned between the two rotation limiting parts 2e, the rotation limiting parts 2e collide with the limiting part to limit the rotation angle of the safety belt guide ring. The outer periphery of the filling portion 2c is connected with a light shielding portion 2f in a sheet shape, and the light shielding portion 2f can improve the aesthetic property and the safety of the seat belt guide ring mounted on the vehicle.
Example two
As shown in fig. 10 to 16, the structure and principle of the present embodiment are basically the same as those of the first embodiment, and the basic same points are not described in detail, but only in different points, namely, the plastic part 2 is not an integral structure, and the plastic part 2 is not coated on the metal skeleton 1 by injection molding. Specifically, the connecting portion 2d, the hole cover portion 2b, the guard portion 2a, and the rotation limiting portion 2e are integrally connected; the filling portion 2c and the light shielding portion 2f are integrally connected.
The hole sleeve part 2b is provided with a deformation groove, so that the hole sleeve part 2b can deform and the hole sleeve part 2b is embedded into the connecting hole 6. The guard portion 2a has a groove 2a1 fitted to the extension region 1b3, and the extension region 1b3 is fitted into the groove 2a 1.
Both ends of the filling part 2c are connected with a clamping foot part 2g positioned between the connecting part 2d and the metal framework 1, the end part of the clamping foot part 2g is provided with a barb 2g1, the connecting part 2d is provided with an avoidance hole 2d1 corresponding to the barb 2g1 in position, and the edge part of the avoidance hole 2d1 is embedded into a hook groove of the barb 2g 1.
The safety belt guide ring assembling step is that a filling part 2c is sleeved in a groove 1f of a metal framework 1, an extension area 1b3 is embedded in a clamping groove 2a1, a hole sleeve part 2b is embedded in a connecting hole 6, and the edge part of a avoidance hole 2d1 is also embedded in a hook groove of a barb 2g1 in the process.
The bolt 4 is worn to be equipped with in the hole cover portion 2b, and the head of bolt 4 is located the second installation space, is connected with location cap 5 on the screw rod portion of bolt 4, and location cap 5 is located the rear side of connecting portion 2d, from this restriction bolt 4 axial displacement, and this structure both makes the safety belt guide ring be convenient for be connected with the vehicle, has the effect of prescribing a limit to the position of working of plastics 2 again, improves firm of connection and connection stability's advantage between working of plastics 2 and metal skeleton 1.
Example III
The structure and principle of the present embodiment are basically the same as those of the first embodiment or the second embodiment, and the basic same points are not described in detail, only different points are described, and the differences are that: the plastic member 2 does not include the light shielding portion 2f, or the plastic member 2 does not include the light shielding portion 2f and the filling portion 2c.

Claims (6)

1. A safety belt guide ring comprises a metal framework (1) and a plastic piece (2); the metal framework (1) is provided with a strip-shaped guide hole (1 a), and the cross sections of one side surface and two end surfaces of the guide hole (1 a) are arc-shaped; the metal framework (1) comprises a framework upper part (1 b) positioned above the guide hole (1 a), a framework lower part (1 c) positioned below the guide hole (1 a) and two framework middle parts (1 d) positioned outside two ends of the guide hole (1 a) respectively, grooves (1 f) are formed in the outer sides of the framework lower part (1 c) and the framework middle parts (1 d), the grooves (1 f) of the framework lower part (1 c) are communicated with the grooves (1 f) of the framework middle parts (1 d), the framework upper part (1 b) comprises a flat plate area (1 b 1) and a connecting area (1 b 2) for connecting the flat plate area (1 b 1) with the two framework middle parts (1 d), and a connecting hole (6) is formed in the flat plate area (1 b 1);
plastic part (2) and metal skeleton (1) fixed connection, plastic part (2) are integrated into one piece structure, plastic part (2) are including cladding guard portion (2 a) of guiding hole (1 a) another side, wear to establish hole cover portion (2 b) in connecting hole (6), inlay filling portion (2 c) of establishing in recess (1 f) and be located metal skeleton (1) rear side and be connected with connecting portion (2 d) that filling portion (2 c), hole cover portion (2 b) and guard portion (2 a), be connected with two rotatory spacing portion (2 e) on connecting portion (2 d), when the locating part is located between two rotatory spacing portion (2 e), rotatory spacing portion (2 e) and locating part collision realize restricting the rotation angle of safety belt guide ring.
2. The seat belt guide ring according to claim 1, characterized in that the metal skeleton (1) has an extension region (1 b 3) that protrudes into the guide hole (1 a); the extension region (1 b 3) is embedded in the guard (2 a).
3. The seat belt guide ring according to claim 1, wherein both ends of the filling portion (2 c) are connected with a leg-catching portion (2 g) located between the connecting portion (2 d) and the metal frame (1), the end part of the clamping foot part (2 g) is provided with a barb (2 g 1), the connecting part (2 d) is provided with an avoidance hole (2 d 1) corresponding to the barb (2 g 1), and the edge part of the avoidance hole (2 d 1) is embedded into the hook groove of the barb (2 g 1).
4. A seat belt guide ring according to claim 3, characterized in that a bolt (4) is inserted into the hole sleeve portion (2 b), a positioning cap (5) is connected to the screw portion of the bolt (4), and the positioning cap (5) is located at the rear side of the connecting portion (2 d).
5. The belt guide ring according to claim 1 or 2, characterized in that the front outer edge region of the lower frame part (1 c) is inclined rearward, with an angle β between the front side of the lower frame part (1 c) and the vertical plane.
6. The belt guide ring according to claim 5, characterized in that the flat plate area (1 b 1) is located at the rear side of the frame upper part (1 b), and a distance L2 is provided between the front side of the flat plate area (1 b 1) and the front edge of the frame upper part (1 b); the front side of the flat plate area (1 b 1) forms a second installation space.
CN201910063986.XA 2018-08-20 2019-01-23 Safety belt guide ring Active CN109572615B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810946938.0A CN108891380A (en) 2018-08-20 2018-08-20 Belt guide loop
CN2018109469380 2018-08-20

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CN109572615A CN109572615A (en) 2019-04-05
CN109572615B true CN109572615B (en) 2024-04-09

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CN201810946938.0A Pending CN108891380A (en) 2018-08-20 2018-08-20 Belt guide loop
CN201910063986.XA Active CN109572615B (en) 2018-08-20 2019-01-23 Safety belt guide ring

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Application Number Title Priority Date Filing Date
CN201810946938.0A Pending CN108891380A (en) 2018-08-20 2018-08-20 Belt guide loop

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102428803B1 (en) * 2020-03-04 2022-08-04 주식회사 금토일산업 Car pillar anchor and manufacturing method therefor

Citations (6)

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Publication number Priority date Publication date Assignee Title
DE10032801A1 (en) * 2000-06-28 2002-01-10 Norbert Janz Turn-round unit of a safety belt for integration into a narrow load-carrying element of a motor vehicle bodywork comprises a turn-round element which is a shaped sheet metal component
CN1915715A (en) * 2005-08-19 2007-02-21 高田株式会社 Seat-belt guide anchor and seat-belt apparatus having the same
DE102006028892A1 (en) * 2006-06-21 2007-12-27 J & S Gmbh Automotive Technology Seat belt deviating unit for motor vehicle, has metal body with closed flange protruding relative to mounting surface, and belt lug limited at bottom side by even bar, where even bar is narrower than safety belt guided via bar
CN204895382U (en) * 2015-07-27 2015-12-23 比亚迪股份有限公司 Seatbelt webbing guider
CN205836758U (en) * 2016-06-23 2016-12-28 浙江吉利控股集团有限公司 A kind of belt guide loop and vehicle
CN209426718U (en) * 2018-08-20 2019-09-24 玉环加鑫汽车配件有限公司 Belt guide loop

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10153062C1 (en) * 2001-10-30 2003-04-24 Norbert Janz Automotive seat belt shoulder harness attachment has belt sliding surface separated from bolt attachment centre point by defined gap

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032801A1 (en) * 2000-06-28 2002-01-10 Norbert Janz Turn-round unit of a safety belt for integration into a narrow load-carrying element of a motor vehicle bodywork comprises a turn-round element which is a shaped sheet metal component
CN1915715A (en) * 2005-08-19 2007-02-21 高田株式会社 Seat-belt guide anchor and seat-belt apparatus having the same
DE102006028892A1 (en) * 2006-06-21 2007-12-27 J & S Gmbh Automotive Technology Seat belt deviating unit for motor vehicle, has metal body with closed flange protruding relative to mounting surface, and belt lug limited at bottom side by even bar, where even bar is narrower than safety belt guided via bar
CN204895382U (en) * 2015-07-27 2015-12-23 比亚迪股份有限公司 Seatbelt webbing guider
CN205836758U (en) * 2016-06-23 2016-12-28 浙江吉利控股集团有限公司 A kind of belt guide loop and vehicle
CN209426718U (en) * 2018-08-20 2019-09-24 玉环加鑫汽车配件有限公司 Belt guide loop

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