CN214728330U - Car back-row seat back installation connection structure - Google Patents
Car back-row seat back installation connection structure Download PDFInfo
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- CN214728330U CN214728330U CN202120450354.1U CN202120450354U CN214728330U CN 214728330 U CN214728330 U CN 214728330U CN 202120450354 U CN202120450354 U CN 202120450354U CN 214728330 U CN214728330 U CN 214728330U
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- compression spring
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Abstract
The utility model discloses a car back-row seat back erection joint structure, including fixing the back flap on the back and fixing the automobile body support on the automobile body, be provided with the bolt pivot between back flap and automobile body support, the one end of bolt pivot and the side fixed connection of back flap, the other end tip of bolt pivot sets up to spacing plush copper, towards the automobile body support direction wear to be equipped with compression spring, axle sleeve in proper order in the bolt pivot, bolt pivot joint between axle sleeve and the spacing plush copper is on the automobile body support, compression spring's both ends respectively the butt in the side of back flap and axle sleeve, the axle sleeve passes through compression spring's pretightning force and automobile body support contact. The utility model provides a simple structure operation has improved the convenience of back row backrest installation, dismantlement, has simplified back skeleton texture, the cost is reduced simultaneously.
Description
Technical Field
The utility model relates to an automobile parts technical field specifically is a car back-row seat back erection joint structure.
Background
The backrest of the rear row of the automobile is one of important components of a seat system, and in order to improve the comfort of the whole automobile or enlarge the space of a trunk, the backrest often has the functions of angle adjustment, falling or overturning; at present, the backrest frame with the functions is usually realized through a hinge structure, the hinge structure is usually matched by two hinge plates, and one hinge plate is connected with a nut of a vehicle body bracket through a bolt.
When one hinge plate is connected with a nut of a vehicle body bracket by a bolt by using a hinge structure with two hinge plate mounting holes matched with each other, the following defects are caused:
1. in the process of assembling and installing the seat in the vehicle, the seat is heavier in weight and is more laborious to align with a vehicle body installation hole, so that the efficiency is influenced;
2. two hinge plates occupy larger metal plate space of the vehicle body;
3. the two hinge plates are connected, so that the weight of parts is increased, and the cost is correspondingly increased;
4. generally, an air gun is used for driving two bolts for one hinge plate, and a torque gun is required to be changed for driving torque after the bolts are driven, so that the assembly beat is influenced;
5. the requirement for mutual matching of the mounting holes is high, and the quality problem of eccentric holes is easily caused.
The information disclosed in the background section above is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
Problem to prior art exists, the utility model provides a car back row seat back erection joint structure, easy operation has improved the convenience of back row seat back installation, dismantlement, has simplified back skeleton texture, the cost is reduced simultaneously.
In order to realize the purpose of the utility model, the technical scheme of the utility model is as follows:
the utility model provides a car back row seat back erection joint structure, is including fixing the back hinge plate on the seat back to and fix the automobile body support on the automobile body, its characterized in that: the bolt rotating shaft is arranged between the backrest hinge plate and the vehicle body support, one end of the bolt rotating shaft is fixedly connected with the side face of the backrest hinge plate, the end part of the other end of the bolt rotating shaft is provided with a limiting protruding head, a compression spring and a shaft sleeve penetrate through the bolt rotating shaft towards the direction of the vehicle body support in sequence, the bolt rotating shaft between the shaft sleeve and the limiting protruding head is connected to the vehicle body support in a clamping mode, two ends of the compression spring abut against the side faces of the backrest hinge plate and the shaft sleeve respectively, and the shaft sleeve is in contact with the vehicle body support through the pressure of the compression spring.
Specifically, the top of the vehicle body support is provided with a vertical through groove, the side face of the vehicle body support is provided with a crescent guide groove inclined along the lower portion of the vehicle body support, the vertical through groove is communicated with the crescent guide groove, and the vertical through groove is designed to accommodate the structure that the limiting raised head passes through.
Specifically, one end of the shaft sleeve is provided with a shaft sleeve flange surface, and the shaft sleeve flange surface is abutted with one end of the compression spring; the other end of the shaft sleeve is provided with a shaft sleeve boss, the tail end of the crescent guide groove is provided with a transverse concave platform matched with the shaft sleeve boss, and the shaft sleeve boss is horizontally abutted to the inner side of the shaft sleeve boss through the pressure of the compression spring.
Specifically, the inner side surface of the transverse concave table is connected with the outer side surface of the boss of the shaft sleeve in a clearance fit mode.
Specifically, the shaft sleeve boss is a conical guide table with the outer diameter gradually decreasing towards the direction of the vehicle body support, and the end part of the shaft sleeve boss penetrates through the crescent guide groove and is abutted to the inner side surface of the limiting raised head.
Specifically, a through hole is formed in the side face of the backrest hinge plate, a nut coaxial with the through hole is fixed on the inner side face of the backrest hinge plate, and one end of the bolt rotating shaft penetrates through the shaft sleeve, the compression spring and the through hole in sequence to be fixed with the nut.
Specifically, a bolt rotating shaft threaded section and a bolt rotating shaft matching section are sequentially arranged on the bolt rotating shaft towards the direction of the vehicle body support, the bolt rotating shaft threaded section is connected with a nut, and the spring and the shaft sleeve are arranged on the bolt rotating shaft matching section in a penetrating mode; the outer diameter of the bolt rotating shaft matching section is larger than that of the bolt rotating shaft thread section, and a limiting step of the backrest hinge plate is formed.
Specifically, the nut is fixed to the back hinge plate by welding.
Specifically, the shaft sleeve is a plastic part.
The utility model has the advantages that:
1. the backrest framework assembly hinge is simple and compact in structure, only one backrest hinge plate is used, and the other hinge plate is replaced by a spring, a plastic shaft sleeve and a bolt rotating shaft, so that the weight is reduced, and the assembly space is saved;
2. the bolt rotating shaft is directly matched with the contour of the groove of the vehicle body bracket through the plastic shaft sleeve, so that bolts are not required to be screwed, and the assembly efficiency is improved;
3. the boss of the plastic shaft sleeve is matched with the vehicle body bracket, so that abnormal sound generated by direct contact of the bolt rotating shaft and the vehicle body bracket is avoided;
4. the spring is compressed by the plastic shaft sleeve, so that the boss of the plastic shaft sleeve can be extruded to completely push against the step surface of the matching section of the bolt rotating shaft, and the Y-direction shaking gap is eliminated;
5. the vehicle body support adopts the crescent moon groove design, can utilize back self gravity direction in back skeleton assembly installation, can avoid again the back to assemble the risk of beating in the Z direction behind the recess.
Drawings
Fig. 1 is the utility model relates to an assembly schematic diagram of car back row backrest erection joint structure.
Fig. 2 is the utility model relates to a cross-sectional view of car back row backrest erection joint structure.
Fig. 3 is an exploded view of each part of the mounting and connecting structure for the seat back of the rear row of the car of the present invention.
Fig. 4 is a schematic structural view of a body bracket of the mounting and connecting structure for a rear seat backrest of an automobile of the present invention.
In the drawing, 1-a backrest hinge plate, 101-a through hole, 2-a vehicle body support, 201-a vertical through groove, 202-a crescent guide groove, 203-a transverse concave table, 3-a bolt rotating shaft, 301-a limiting raised head, 302-a bolt rotating shaft thread section, 303-a bolt rotating shaft matching section, 4-a compression spring, 5-a shaft sleeve, 501-a shaft sleeve flange surface, 502-a shaft sleeve boss and 6-a nut.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings. In the description of the embodiments, it is to be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the embodiments and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation and thus should not be construed as limiting the present invention.
As shown in fig. 1-4, the embodiment provides an installation and connection structure for a back of a rear seat of an automobile, which includes a back hinge plate 1 fixed on a back of a seat, and a body frame 2 fixed on a body, a bolt rotating shaft 3 is arranged between the back hinge plate 1 and the body frame 2, one end of the bolt rotating shaft 3 is fixedly connected with a side surface of the back hinge plate 1, the other end of the bolt rotating shaft 3 is provided with a limit raised head 301, a compression spring 4 and a shaft sleeve 5 are sequentially arranged on the bolt rotating shaft 3 facing the body frame 2, the bolt rotating shaft 3 between the shaft sleeve 5 and the limit raised head 301 is clamped on the body frame 2, two ends of the compression spring 4 are respectively abutted against the side surfaces of the back hinge plate 1 and the shaft sleeve 5, and the shaft sleeve 5 is contacted with the body frame 2 through the pressure of the compression spring 4.
Compared with the assembly mode needing two hinge plates in the prior art, the backrest hinge plate assembly has the advantages that only one backrest hinge plate 1 is used, the other hinge plate is replaced by the compression spring 4, the shaft sleeve 5 and the bolt rotating shaft 3, the backrest framework hinge structure is simplified, the backrest framework assembly hinge structure is simple and compact, the weight of a seat framework is reduced, the transverse assembly space is saved, and the cost is saved; the bolt rotating shaft 3 is directly matched with the outline clamping mode of the vehicle body bracket, so that the processes of bolting and torsion are omitted, and the convenience and the efficiency of the assembly process are improved; through the arrangement of the compression spring 4 and the shaft sleeve 5, the compression spring 4 is compressed by the shaft sleeve 5, the shaft sleeve 5 can be extruded to completely prop against the vehicle body support 2, and the Y-direction shaking gap of the vehicle body is eliminated, so that abnormal sound is eliminated; finally, the purpose of the utility model is achieved.
As a preferred technical solution of this embodiment, as shown in fig. 4, the vehicle body support 2 may be a metal plate of a vehicle body, a vertical through groove 201 is formed in the top of the vehicle body support 2, a crescent-shaped guide groove 202 inclined along a lower side of the vehicle body support 2 is formed in a side surface of the vehicle body support 2, the vertical through groove 201 is communicated with the crescent-shaped guide groove 202, and the vertical through groove 201 is configured to accommodate a structure through which the limiting protruding head 301 passes. The vertical through groove 201 is used for enabling the limiting raised head 301 at the end part of the bolt rotating shaft 3 to vertically pass through, the groove width of the joint of the vertical through groove 201 and the crescent guide groove 202 is gradually reduced, and the limiting raised head 301 is gradually limited in the clamping process from top to bottom, namely, a vehicle body metal plate is clamped between the limiting raised head 301 and the shaft sleeve 5; crescent guide way 202 is used for supporting bolt pivot 3 to along crescent guide way 202 direction this bottom when clamping supporting bolt pivot 3 under the effect of seat skeleton gravity, the setting of crescent has offset the clearance of a part Z axle, has reduced the condition of rocking of seat skeleton in automobile body Z orientation promptly.
As a further preferable technical solution of this embodiment, referring to fig. 2, one end of the shaft sleeve 5 is provided as a shaft sleeve flange surface 501, and the shaft sleeve flange surface 501 abuts against one end of the compression spring 4; the other end of the shaft sleeve 5 is provided with a shaft sleeve boss 502, the tail end of the crescent-shaped guide groove 202 is provided with a transverse concave platform 203 matched with the shaft sleeve boss 502, and the shaft sleeve boss 502 is transversely abutted in the shaft sleeve boss 502 through the pressure of the compression spring 4. Through the setting of horizontal concave station 203, bolt pivot 3 is at the in-process of following crescent guide way 202 whereabouts, and axle sleeve boss 502 horizontal direction removes towards horizontal concave station 203 and compresses tightly, can prevent that drive axle sleeve boss 502 from producing radial displacement or deviating from circumference from horizontal concave station 203 when bolt pivot 3 rotates.
As a further preferred technical solution of this embodiment, the inner side surface of the transverse concave 203 is connected with the outer side surface of the boss 502 of the shaft sleeve in a clearance fit manner, so that when the bolt rotating shaft 3 rotates, the rotating friction is reduced as much as possible under the possibility of driving the shaft sleeve 5, and the damage of the shaft sleeve 5 is avoided.
As a further preferable mode of this embodiment, the boss 502 of the boss is a conical guide boss whose outer diameter is gradually reduced toward the body frame 2, and the end of the boss 502 of the boss passes through the crescent-shaped guide groove 202 and abuts against the inner side surface of the stopper nose 301. In the assembly process of the backrest framework assembly, the conical surface of the boss 502 of the shaft sleeve is in interference fit with the crescent guide groove 202, the compression spring 4 is extruded to be compressed towards the side of the backrest hinge plate 1, the compression spring 4 is pre-tightened, and part of vertical gravity is converted into transverse pressure; when the bolt rotating shaft 3 is assembled and falls to the transverse concave table 203, the end part of the boss 502 of the shaft sleeve is inserted and pressed into the hole at the tail end of the crescent-shaped guide groove 202 in a clearance fit mode under the pressure of the compression spring 4, and the limit raised head 301 is abutted against the inner side surface of the limit raised head 301 to ensure that a certain clearance is kept between the limit raised head 301 and the vehicle body bracket 2, so that the possibility of mutual friction is avoided, and the bolt rotating shaft 3 can rotate conveniently.
As a further preferable technical solution of the present embodiment, a through hole 101 is provided on a side surface of the back hinge plate 1, a nut 6 coaxial with the through hole 101 is fixed on an inner side surface of the back hinge plate 1, and one end of the bolt rotation shaft 3 is fixed to the nut 6 through the bushing 5, the compression spring 4, and the through hole 101 in this order.
As a further preferable technical solution of this embodiment, referring to fig. 3, a bolt rotating shaft 3 is sequentially provided with a bolt rotating shaft threaded section 302 and a bolt rotating shaft matching section 303 toward the vehicle body bracket 2, the bolt rotating shaft threaded section 302 is connected with a nut 6, and a compression spring 4 and a shaft sleeve 5 are arranged on the bolt rotating shaft matching section 303 in a penetrating manner; the external diameter of bolt pivot cooperation section 303 is greater than the external diameter of bolt pivot screw thread section 302 and forms the spacing step of back flap 1, through the length ratio who sets up bolt pivot screw thread section 302, bolt pivot cooperation section 303, can adjust compression spring 4's pretightning force.
As a more preferable mode of the present embodiment, the nut 6 is welded and fixed to the back hinge plate 1, and is screwed and fixed to the nut 6 by rotating the bolt rotation shaft 3.
As a further preferable technical solution of this embodiment, the shaft sleeve 5 is made of plastic, and the plastic shaft sleeve boss 502 is matched with the vehicle body bracket 2 to avoid abnormal noise generated by direct contact between the bolt rotating shaft 3 and the vehicle body bracket 2.
The steps and the principle of adopting the installation and connection structure of the embodiment to install the seat backrest are as follows:
1: the backrest hinge plate 1 is connected with the nut 6 in a pressure welding mode, the bolt rotating shaft 3 firstly penetrates through the shaft sleeve 5 and then penetrates through the compression spring 4, and the threaded section 302 of the bolt rotating shaft is screwed with the nut 6, so that the structural part of the backrest frame assembly is connected with the backrest frame assembly;
2: lifting the bolt rotating shaft matching section 303 to the position above the vertical through groove 201 of the vehicle body support, and placing the bolt rotating shaft matching section into the groove along the guide of the crescent guide groove 202 of the vehicle body support 2, wherein the structure of the vehicle body support 2 is shown in fig. 4;
3: in the process of the whole falling groove of the backrest framework assembly, the shaft sleeve 5 is acted by the lateral force of the vehicle body support 2 to compress the compression spring 4 until the backrest framework assembly is finally assembled to the tail end of the crescent guide groove 202 of the vehicle body support, the compression spring 4 expands to extrude the shaft sleeve 4 to move towards the side of the vehicle body support 2, the shaft sleeve boss 502 falls on the profile surface of the transverse concave table 203, and the installation of the backrest framework assembly is completed as shown in fig. 1 and 2.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The utility model provides a car back row seat back erection joint structure, is including fixing back hinge plate (1) on the seat back to and fix automobile body support (2) on the automobile body, its characterized in that: be provided with bolt pivot (3) between back hinge plate (1) and automobile body support (2), the one end of bolt pivot (3) and the side fixed connection of back hinge plate (1), the other end tip of bolt pivot (3) sets up to spacing plush copper (301), is in towards automobile body support (2) direction wear to be equipped with compression spring (4), axle sleeve (5) in proper order in bolt pivot (3), bolt pivot (3) joint between axle sleeve (5) and spacing plush copper (301) is on automobile body support (2), the both ends of compression spring (4) butt respectively in the side of back hinge plate (1) and axle sleeve (5), axle sleeve (5) are through the pressure and the contact of automobile body support (2) of compression spring (4).
2. The mounting and connecting structure for the automobile rear seat back according to claim 1, characterized in that: the top of the vehicle body support (2) is provided with a vertical through groove (201), the side face of the vehicle body support (2) is provided with a crescent guide groove (202) inclined along the lower portion of the vehicle body support, the vertical through groove (201) is communicated with the crescent guide groove (202), and the vertical through groove (201) is set to be of a structure for accommodating a limiting raised head (301).
3. The mounting and connecting structure for the automobile rear seat back according to claim 2, characterized in that: one end of the shaft sleeve (5) is provided with a shaft sleeve flange surface (501), and the shaft sleeve flange surface (501) is abutted against one end of the compression spring (4); the other end of the shaft sleeve (5) is provided with a shaft sleeve boss (502), the tail end of the crescent guide groove (202) is provided with a transverse concave table (203) matched with the shaft sleeve boss (502), and the shaft sleeve boss (502) is transversely abutted against the inside of the shaft sleeve boss (502) through the pressure of the compression spring (4).
4. The mounting and connecting structure for the automobile rear seat back according to claim 3, characterized in that: the inner side surface of the transverse concave table (203) is connected with the outer side surface of the shaft sleeve boss (502) in a clearance fit mode.
5. The mounting and connecting structure for the automobile rear seat back according to claim 4, wherein: the shaft sleeve boss (502) is a conical guide table with the outer diameter gradually reduced towards the direction of the vehicle body support (2), and the end part of the shaft sleeve boss (502) penetrates through the crescent guide groove (202) and is abutted against the inner side surface of the limiting raised head (301).
6. The mounting and connecting structure for the automobile rear seat back according to claim 1, characterized in that: the side face of the backrest hinge plate (1) is provided with a through hole (101), a nut (6) coaxial with the through hole (101) is fixed on the inner side face of the backrest hinge plate (1), and one end of the bolt rotating shaft (3) penetrates through the shaft sleeve (5), the compression spring (4) and the through hole (101) in sequence to be fixed with the nut (6).
7. The mounting and connecting structure for the automobile rear seat back according to claim 6, wherein: the bolt rotating shaft (3) is sequentially provided with a bolt rotating shaft threaded section (302) and a bolt rotating shaft matching section (303) towards the direction of the vehicle body support (2), the bolt rotating shaft threaded section (302) is connected with a nut (6), and the compression spring (4) and the shaft sleeve (5) are arranged on the bolt rotating shaft matching section (303) in a penetrating mode; the outer diameter of the bolt rotating shaft matching section (303) is larger than that of the bolt rotating shaft thread section (302) and forms a limiting step of the backrest hinge plate (1).
8. The mounting and connecting structure for the automobile rear seat back according to claim 6, wherein: the nut (6) is fixed on the backrest hinge plate (1) by welding.
9. The mounting and connecting structure for the automobile rear seat back according to claim 1, characterized in that: the shaft sleeve (5) is a plastic part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120450354.1U CN214728330U (en) | 2021-03-02 | 2021-03-02 | Car back-row seat back installation connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120450354.1U CN214728330U (en) | 2021-03-02 | 2021-03-02 | Car back-row seat back installation connection structure |
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| Publication Number | Publication Date |
|---|---|
| CN214728330U true CN214728330U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120450354.1U Active CN214728330U (en) | 2021-03-02 | 2021-03-02 | Car back-row seat back installation connection structure |
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| Country | Link |
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| CN (1) | CN214728330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670727A (en) * | 2022-04-14 | 2022-06-28 | 山东交通职业学院 | Automobile rear seat fixing support |
| CN115071521A (en) * | 2022-07-08 | 2022-09-20 | 四川野马汽车股份有限公司 | Seat and vehicle that can fall flat from beginning to end |
-
2021
- 2021-03-02 CN CN202120450354.1U patent/CN214728330U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670727A (en) * | 2022-04-14 | 2022-06-28 | 山东交通职业学院 | Automobile rear seat fixing support |
| CN115071521A (en) * | 2022-07-08 | 2022-09-20 | 四川野马汽车股份有限公司 | Seat and vehicle that can fall flat from beginning to end |
| CN115071521B (en) * | 2022-07-08 | 2023-09-26 | 四川野马汽车股份有限公司 | Vehicle with a wheel |
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