Opposite opening type back door hinge of commercial vehicle

Abstract

The invention discloses a hinged back door hinge of a commercial vehicle, and belongs to the technical field of automobile manufacturing. The back door hinge comprises a base installed on the side wall of a vehicle body, a main rotating arm is hinged to the base, the other end of the main rotating arm is hinged to a mounting base, and the mounting base is installed on the vehicle door; a cavity is formed in the middle of the main rotating arm, a connecting rod is arranged in the cavity, the two ends of the connecting rod are hinged to the base and the mounting base correspondingly, sliding grooves and a plurality of limiting grooves located in the bottoms of the sliding grooves are formed in the two sides of the connecting rod correspondingly, threaded through holes are formed in the two side walls of the main rotating arm correspondingly, and guide pipes are fixed between the threaded through holes and the connecting rod; a ball assembly matched with the sliding groove is arranged in the guide pipe. A self-limiting structure is achieved through cooperation of the limiting groove and the ball on the hinge, traditional limiting arm and magnetic attraction combined limiting is replaced, and the self-limiting hinge has the advantages of being simple in structure, high in reliability and low in cost.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, and in particular to a hinge for a split-type tailgate of a commercial vehicle. Background Art

[0002] The commercial vehicle tailgate hinge is a key component that connects the car tailgate to the body. It allows the tailgate to rotate around the same axis and fixes the position of the tailgate for easy opening and closing.

[0003] In the prior art, when the doors of commercial vehicles are opened at 90° and 246°, two-stage limit is achieved by combining the limit arm connecting the door and the side panel (at 90°) and the magnetic limiter connecting the door and the side panel (at 246°). The traditional solution has both a limit arm for 90° limit and a magnetic limiter for 246° limit, which requires a combination of multiple parts to achieve two-stage limit. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a commercial vehicle double-leaf tailgate hinge. Compared with the limit arm and magnetic combination limit in the prior art, a self-limiting structure is realized by the cooperation of the limit groove and the ball on the hinge, replacing the traditional limit arm and magnetic combination limit, and has the advantages of simple structure, high reliability and low cost.

[0005] To achieve the above-mentioned purpose, the present invention provides a commercial vehicle double-leaf tailgate hinge, comprising a base installed on the side wall of the vehicle body, a main rotating arm hinged on the base, the other end of the main rotating arm hinged on a mounting seat, and the mounting seat is installed on the vehicle door; a cavity is provided in the middle of the main rotating arm, a connecting rod is provided in the cavity, both ends of the connecting rod are hinged to the base and the mounting seat respectively, a slide groove and a plurality of limiting grooves located at the bottom of the slide groove are provided on both sides of the connecting rod, threaded through holes are provided on both side walls of the main rotating arm, a guide tube is fixed between the threaded through hole and the connecting rod, and a ball assembly cooperating with the slide groove is provided in the guide tube.

[0006] Preferably, the ball assembly includes a ball, a ball seat, a compression spring and an adjustment bolt matched with the threaded through hole which are sequentially arranged along the guide tube, and the ball rolls in the slide groove.

[0007] Preferably, the ball seat comprises a seat body, one end of which is fixed with a spring sleeve lever, and the other end of which is provided with a rolling groove.

[0008] Preferably, the base is provided with a self-clinching bolt, and the self-clinching bolt is used to fix the base to the side wall of the vehicle body.

[0009] Preferably, the limiting groove comprises a first limiting groove and a second limiting groove, the first limiting groove is located in the middle area of ​​the slide groove, and the second limiting groove is located at the tail end of the slide groove travel.

[0010] Preferably, a limit piece is provided at one end of the base for abutting against the connecting rod to limit the rotation angle of the base on the connecting rod, and the limit piece includes a bolt seat, a bolt hole is provided on the top of the limit bolt seat, a limit bolt is installed in the bolt hole, and the limit bolt is adjustable along its axial direction on the bolt seat, and the end of the limit bolt abuts against the connecting rod.

[0011] Preferably, the main rotating arm includes a bottom plate, side walls are provided on both sides of the top of the bottom plate, first mounting holes are provided at both ends of the side walls, and a main rotating pin is provided in the first mounting hole; the base and the mounting seat are respectively hinged on the main rotating arm through the main rotating pins located at both ends of the main rotating arm.

[0012] Preferably, a main pin shaft is provided between the first mounting hole and the main rotating pin.

[0013] Preferably, both ends of the connecting rod are provided with a second mounting hole, and the second mounting holes are provided with secondary rotating pins; the base and the mounting seat are respectively hinged on the connecting rod through the secondary rotating pins located at both ends of the main rotating arm.

[0014] Preferably, a secondary pin shaft is provided between the second mounting hole and the secondary rotating pin.

[0015] Beneficial effects of the present invention:

[0016] The present invention realizes a self-limiting structure by cooperating between a limiting groove and a ball on a hinge, replacing a traditional limiting arm and a magnetic combination limiting structure, and has the advantages of simple structure, high reliability and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 A three-dimensional diagram of another viewing angle of the present invention;

[0019] Figure 3 for Figure 2 Explosion effect diagram;

[0020] Figure 4 is a three-dimensional diagram of the main rotating arm of the present invention;

[0021] Figure 5 A three-dimensional diagram of a connecting rod of the present invention;

[0022] Figure 6 for Figure 5 Explosion effect diagram;

[0023] Figure 7 The present invention is a process flow chart of the use of the commercial vehicle split tailgate hinge.

[0024] Reference numerals:

[0025] 1 base, 11 pressure rivet bolts, 13 bolt seat, 14 limit bolts,

[0026] 2 main rotating arm, 21 threaded through hole, 22 guide tube, 23 bottom plate, 24 side wall, 241 first mounting hole, 25 main rotating pin, 26 main pin shaft,

[0027] 3 Mounting seat,

[0028] 4 connecting rod, 41 sliding groove, 42 limiting groove, 43 second mounting hole, 44 auxiliary rotating pin, 45 auxiliary pin shaft,

[0029] 5 ball assembly, 51 ball, 52 ball seat, 521 seat body, 522 spring sleeve lever, 523 rolling groove, 53 compression spring, 54 adjustment bolt. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] Example

[0037] like Figures 1 to 6 The commercial vehicle double-leaf back door hinge shown in the figure comprises a base 1 mounted on the side of the vehicle body, and a rivet bolt 11 is provided on the base 1, and the rivet bolt 11 is used to fix the base 1 on the side of the vehicle body. A main rotating arm 2 is hinged on the base 1, and a mounting seat 3 is hinged on the other end of the main rotating arm 2, and the mounting seat 3 is mounted on the vehicle door; a cavity is provided in the middle of the main rotating arm 2, and a connecting rod 4 is provided in the cavity, and the two ends of the connecting rod 4 are respectively hinged on the base 1 and the mounting seat 3, and a slide groove 41 and a plurality of limiting grooves 42 located at the bottom of the slide groove 41 are provided on both sides of the connecting rod 4, and the limiting grooves 42 include a first limiting groove 421 and a second limiting groove 422, the first limiting groove 421 is located in the middle area of ​​the slide groove 41, and the second limiting groove 422 is located at the end of the travel of the slide groove 41. Threaded through holes 21 are provided on both side walls of the main rotating arm 2 , a guide tube 22 is fixed between the threaded through hole 21 and the connecting rod 4 , and a ball assembly 5 matched with the slide groove 41 is provided in the guide tube 22 .

[0038] The ball assembly 5 includes a ball 51, a ball seat 52, a compression spring 53 and an adjustment bolt 54 matched with the threaded through hole 21, which are sequentially arranged along the guide tube 22. The ball 51 is arranged to roll in the slide groove 41. The ball seat 52 includes a seat body 521, one end of which is fixed with a spring sleeve rod 522, and the other end of which is provided with a rolling groove 523.

[0039] A limit piece is provided at one end of the base 1 for abutting the connecting rod 4 to limit the rotation angle of the base on the connecting rod 4. The limit piece includes a bolt seat 13. A bolt hole is provided on the top of the limit bolt seat 13. A limit bolt 14 is installed in the bolt hole. The limit bolt 14 is adjustable along its axial direction on the bolt seat 13, and the end of the limit bolt 14 abuts the connecting rod 4.

[0040] The main rotating arm 2 includes a bottom plate 23, and side walls 24 are provided on both sides of the top of the bottom plate 23. First mounting holes 241 are provided at both ends of the side walls 24, and main rotating pins 25 are provided in the first mounting holes 241. The base 1 and the mounting base 3 are respectively hinged on the main rotating arm 2 through the main rotating pins 25 located at both ends of the main rotating arm 2. A main pin shaft 26 is provided between the first mounting hole 241 and the main rotating pin 25.

[0041] The connecting rod 4 is provided with a second mounting hole 43 at both ends, and a secondary rotating pin 44 is provided in each of the second mounting holes 43; the base 1 and the mounting seat 3 are respectively hinged on the connecting rod 4 through the secondary rotating pins 44 located at both ends of the main rotating arm 2. A secondary pin shaft 45 is provided between the second mounting hole 43 and the secondary rotating pin 44.

[0042] The process flow of the present invention when installed and used is described below:

[0043] After the commercial vehicle split tailgate hinge in the embodiment is assembled, the base 1 is fixed to the vehicle body side by means of rivet bolts 11 , and the mounting base 3 is fixed to the tailgate by means of bolts.

[0044] like Figure 7 As shown, when the back door is pulled to 90°, the rotation angle of the main rotating arm 2 is 50.6°, and the ball 51 rolls along the slide groove 41 into the first limiting groove 421. The back door is continued to be pulled to 245.6°, and the rotation angle of the main rotating arm 2 is 125°. At this time, the ball rolls along the slide groove 41 into the second limiting groove 422.

[0045] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A commercial vehicle split back door hinge, characterized in that: The invention comprises a base (1) mounted on the side of the vehicle body, a main rotating arm (2) being hinged on the base (1), a mounting seat (3) being hinged on the other end of the main rotating arm (2), and the mounting seat (3) being mounted on the vehicle door; a cavity is provided in the middle of the main rotating arm (2), a connecting rod (4) is provided in the cavity, two ends of the connecting rod (4) are respectively hinged on the base (1) and the mounting seat (3), a slide groove (41) and a plurality of limiting grooves (42) located at the bottom of the slide groove (41) are provided on both sides of the connecting rod (4), threaded through holes (21) are provided on both side walls of the main rotating arm (2), a guide tube (22) is fixed between the threaded through hole (21) and the connecting rod (4), and a ball assembly (5) matching the slide groove (41) is provided in the guide tube (22).

2. The commercial vehicle split back door hinge according to claim 1, characterized in that: The ball assembly (5) comprises a ball (51), a ball seat (52), a compression spring (53) and an adjustment bolt (54) matched with the threaded through hole (21) which are arranged in sequence along the guide tube (22); the ball (51) is arranged to roll in the slide groove (41).

3. The commercial vehicle split tailgate hinge according to claim 2, characterized in that: The ball seat (52) comprises a seat body (521), one end of which is fixed with a spring sleeve lever (522), and the other end of which is provided with a rolling groove (523).

4. The commercial vehicle split back door hinge according to claim 1, characterized in that: The base (1) is provided with a rivet bolt (11), and the rivet bolt (11) is used to fix the base (1) to the side wall of the vehicle body.

5. The commercial vehicle split tailgate hinge according to claim 1, characterized in that: The limiting groove (42) comprises a first limiting groove (421) and a second limiting groove (422), wherein the first limiting groove (421) is located in the middle area of ​​the slide groove (41), and the second limiting groove (422) is located at the tail end of the travel of the slide groove (41).

6. The commercial vehicle split tailgate hinge according to claim 1, characterized in that: A limiting member is provided at one end of the base (1) for abutting against the connecting rod (4) to limit the rotation angle of the base on the connecting rod (4), the limiting member comprising a bolt seat (13), a bolt hole is provided at the top of the limiting bolt seat (13), a limiting bolt (14) is installed in the bolt hole, the limiting bolt (14) is arranged on the bolt seat (13) in an axially adjustable manner, and the end of the limiting bolt (14) abuts against the connecting rod (4).

7. The commercial vehicle split tailgate hinge according to claim 1, characterized in that: The main rotating arm (2) comprises a bottom plate (23), side walls (24) are provided on both sides of the top of the bottom plate (23), first mounting holes (241) are provided at both ends of the side walls (24), and a main rotating pin (25) is provided in the first mounting hole (241); the base (1) and the mounting seat (3) are respectively hinged on the main rotating arm (2) via the main rotating pins (25) located at both ends of the main rotating arm (2).

8. The commercial vehicle split tailgate hinge according to claim 7, characterized in that: A main pin shaft (26) is provided between the first mounting hole (241) and the main rotating pin (25).

9. The commercial vehicle split tailgate hinge according to claim 1, characterized in that: Both ends of the connecting rod (4) are provided with a second mounting hole (43), and each of the second mounting holes (43) is provided with an auxiliary rotating pin (44); the base (1) and the mounting seat (3) are respectively hinged on the connecting rod (4) via the auxiliary rotating pins (44) located at both ends of the main rotating arm (2).

10. The commercial vehicle split tailgate hinge according to claim 9, characterized in that: A secondary pin shaft (45) is provided between the second mounting hole (43) and the secondary rotating pin (44).

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