Auxiliary pull rod for downward opening type tail door of automobile

Abstract

The utility model discloses an auxiliary pull rod for a downward-opening type tail door of an automobile. The auxiliary pull rod comprises a first guide pipe, a second guide pipe, a first fixing head, a second fixing head and a spring. The first guide pipe sleeves the outer side of the second guide pipe, and the first guide pipe and the second guide pipe can axially move back and forth; the first guide pipe is connected with the first fixing head, and the second guide pipe is connected with the second fixing head. One end of the spring is connected with the first fixing head, and the other end of the spring is connected with the second fixing head; and the spring is sleeved on the peripheries of the first guide pipe and the second guide pipe. The auxiliary pull rod for the downward-opening type tail door of the automobile can assist in opening and closing of the downward-opening type tail door of the automobile, and provides certain bearing capacity when the downward-opening type tail door is completely opened.

Description

TECHNICAL FIELD

[0001] The utility model relates to tailgate pull rod field especially relates to a car lower open formula tailgate auxiliary pull rod. BACKGROUND

[0002] Most of the present market's car electric tailgates are one-piece up-opening types, but nowadays, with the development of science and technology, the functions of car tailgates are increasingly diversified, and the use requirements of users for car trunk boxes also increase accordingly, so the traditional one-piece up-opening tailgates cannot meet the requirements of users. Compared with up-opening tailgates, lower opening tailgates are more suitable for all people and more convenient to use because of the downward swinging opening mode. However, the lower opening tailgates do not have the buffering and supporting capacity when being opened, and if the opening speed is too fast without the control of hands when the tailgate swings downward, a great impact on the rotating connection between the tailgate and the vehicle body is caused, which not only shortens the service life of the tailgate, but also has safety hazards. SUMMARY

[0003] The utility model aims at providing a car lower open formula tailgate auxiliary pull rod which can assist the opening and closing of the car lower open formula tailgate and provide certain supporting capacity when the lower open formula tailgate is completely opened.

[0004] To achieve the above-mentioned purpose, the utility model provides a car lower open formula tailgate auxiliary pull rod which comprises a first guide pipe, a second guide pipe, a first fixed head, a second fixed head and a spring.

[0005] As a further improvement of the utility model, the first guide pipe is formed with a first open end at one end away from the first fixed head, the second guide pipe is formed with a second open end at one end away from the second fixed head, and the first guide pipe and the second guide pipe are mutually butted through the first open end and the second open end.

[0006] As a further improvement of the utility model, the first fixed head is provided with a first spring connecting structure on one side close to the first open end, the second fixed head is provided with a second spring connecting structure on one side close to the second open end, the first spring connecting structure and the second spring connecting structure are respectively connected with both ends of the spring, and the spring is a tensile spring.

[0007] As a further improvement of the utility model, further include guide block, the first conduit is equipped with guide groove, the guide groove is along the movement direction of the first conduit setting, the guide block sets on the second conduit one end towards the first conduit, the guide block can reciprocatingly slide setting in the guide groove.

[0008] As a further improvement of the utility model, further include the stopper, the stopper sets in the first opening end of the guide groove of the first conduit, for the guide block is located;The stopper is equipped with guide hole, the second conduit passes through the stopper and both are connected, second conduit passes through the guide hole of the stopper and is slidably connected with the stopper.

[0009] As a further improvement of the utility model, further include first protective tube and second protective tube;One end of the first protective tube is connected with the first conduit through the first fixed head;One end of the second protective tube is connected with the second conduit through the second fixed head;The first protective tube is set in the periphery of second protective tube and both can move mutually.

[0010] As a further improvement of the utility model, the auxiliary pull rod is rotatably connected with the vehicle body through the first fixed head and the movable piece, and is rotatably connected with the door through the second fixed head and the movable piece.

[0011] Beneficial effects

[0012] Compared with the prior art, the automobile lower opening type tail door auxiliary pull rod has the following advantages:

[0013] 1. The auxiliary pull rod is rotatably connected with the vehicle body and the door at both ends, which can assist the opening and closing of the automobile lower opening type tail door, provide certain supporting capacity when the lower opening type tail door is completely opened, and enable the user to sit on the lower opening type tail door to perform a series of activities such as fishing, thereby providing the user with more comfortable and diverse experiences.

[0014] 2. When the lower opening type tail door is opened, the stretchable spring is gradually stretched to provide damping for the opening of the tail door, avoid the tail door from being subjected to a large impact force due to excessive speed during the opening process, make the use safer, and prolong the service life of the auxiliary pull rod and the tail door.

[0015] 3. The stopper is used to limit the guide block to prevent the auxiliary pull rod from exceeding the set stroke during the stretching process.

[0016] The utility model will become more clear through the following description and in conjunction with the drawings, these drawings are used to explain the embodiment of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 The main view of the contraction state of the auxiliary pull rod of the automobile lower opening type tail door;

[0019] Figure 2 The main view of the stretching state of the auxiliary pull rod of the automobile lower opening type tail door;

[0020] Figure 3 The sectional view of Figure 2 ;

[0021] Figure 4 The auxiliary pull rod of the automobile lower opening type tail door in use state is one of the perspective views;

[0022] Figure 5 The auxiliary pull rod of the automobile lower opening type tail door in use state is the second perspective view. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described below with reference to the drawings.

[0024] EMBODIMENT

[0025] As shown in the specific embodiment of the present application, Figures 1 to 5 The auxiliary pull rod of the automobile lower opening type tail door comprises a first guide pipe 5, a second guide pipe 6, a first fixed head 3, a second fixed head 4 and a spring 7. First, the first guide pipe 5 is sleeved outside the second guide pipe 6, and the first guide pipe 5 and the second guide pipe 6 can reciprocally move axially. Specifically, the first guide pipe 5 forms a first open end 8 at an end away from the first fixed head 3, the second guide pipe 6 forms a second open end 9 at an end away from the second fixed head 4, and the first guide pipe 5 and the second guide pipe 6 are mutually butted through the first open end 8 and the second open end 9.

[0026] The end of the first guide pipe 5 away from the first open end 8 is connected with the first fixed head 3, and the end of the second guide pipe 6 away from the second open end 9 is connected with the second fixed head 4, and then the spring 7 is sleeved outside the first guide pipe 5 and the second guide pipe 6. One end of the spring 7 is connected with the first fixed head 3, and the other end is connected with the second fixed head 4, wherein the spring 7 is a tensile spring. Under the action of no external force, the auxiliary pull rod of the automobile lower opening type tail door keeps the contraction state under the tension of the spring 7.

[0027] In this embodiment, the first fixed head 3 is provided with a first spring connecting structure on one side close to the first opening end 8, and the second fixed head 4 is provided with a second spring connecting structure on one side close to the second opening end 9. The first spring connecting structure and the second spring connecting structure are respectively connected with the two ends of the spring 7. The first spring connecting structure and the second spring connecting structure can be external threads provided on the fixed head, and are threadedly connected with the end of the spring 7. Alternatively, the first spring connecting structure and the second spring connecting structure can be hooks provided on the fixed head and are hookingly connected with the end of the spring 7. The specific connection mode is not limited.

[0028] The auxiliary pull rod of the lower-opening automobile tail gate further comprises a guide block 10. The first guide pipe 5 is provided with a guide groove in the middle thereof, and the guide groove is arranged along the moving direction of the first guide pipe 5. The guide block 10 is arranged on one end of the second guide pipe 6 facing the first guide pipe 5, and the guide block 10 is arranged in the guide groove in a reciprocating sliding manner. In the process of the extension and retraction of the first guide pipe 5 and the second guide pipe 6, the guide block 10 reciprocates along the guide groove of the first guide pipe 5, so that the relative movement of the first guide pipe 5 and the second guide pipe 6 is more stable. In order to prevent the guide block 10 from falling off during movement, a stop block 11 is arranged at the opening end of the guide groove facing the second guide pipe 6. The stop block 11 is arranged at the first opening end 8 of the guide groove of the first guide pipe 5 and is fixedly connected with the first opening end 8 of the first guide pipe 5. The stop block 11 is provided with a guide hole penetrating through the two ends in the middle thereof. The second guide pipe 6 penetrates through the guide block 10 and is connected with the guide block 10. The second guide pipe 6 penetrates through the guide hole of the stop block 11 and is slidingly connected with the stop block 11. Therefore, in the process of movement, the second guide pipe 6 can be guided along the guide groove. When the guide block 10 at the end of the second guide pipe 6 contacts the stop block 11, the guide block 10 abuts against the stop block 11, thereby limiting the continuous movement of the guide block 10, so as to achieve the purpose of limiting and resisting pulling.

[0029] The auxiliary pull rod of the lower-opening automobile tail gate further comprises a first protective pipe 1 and a second protective pipe 2. One end of the first protective pipe 1 is connected with the first guide pipe 5 through the first fixed head 3, and one end of the second protective pipe 2 is connected with the second guide pipe 6 through the second fixed head 4. The first protective pipe 1 is sleeved on the periphery of the second protective pipe 2 and can reciprocate along the axial direction. The first protective pipe 1 and the second protective pipe 2 are located outside the first guide pipe 5, the second guide pipe 6 and the spring 7, and protect the first guide pipe 5, the second guide pipe 6 and the spring 7.

[0030] The lower-opening door 14 is rotationally connected with the vehicle body 13 at the lower edge thereof. The auxiliary pull rod is rotationally connected with the vehicle body 13 through the first fixed head 3 and the movable piece 12, and is rotationally connected with the lower-opening door 14 through the second fixed head 4 and the movable piece 12. The movable piece 12 can be a bolt, which penetrates through the fixed head and is connected with the vehicle body 13 or the door 14. The first fixed head 3 is rotationally connected with the bolt, and the second fixed head 4 is rotationally connected with the bolt.

[0031] When the tail gate is closed, the first fixed head 3 and the second fixed head 4 are driven to approach each other with the closing of the tail gate, at this time, the spring 7 connecting the first fixed head 3 and the second fixed head 4 also produces shrinkage deformation, and the pulling force of the spring 7 becomes smaller and smaller with the shrinkage.

[0032] When the tail gate is opened, the first fixed head 3 and the second fixed head 4 are driven to move away from each other with the opening of the tail gate, at this time, the spring 7 connecting the first fixed head 3 and the second fixed head 4 also produces tensile deformation, and the pulling force of the spring 7 becomes larger and larger with the tensile deformation.

[0033] The utility model has been described above in combination with the best embodiment, but the utility model is not limited to the above disclosed embodiments, and should cover various modifications, equivalent combinations according to the essence of the utility model.

Claims

1. An auxiliary pull rod for a lower open tailgate of an automobile, characterized by, It comprises a first conduit (5), a second conduit (6), a first fixed head (3), a second fixed head (4) and a spring (7); The first conduit (5) is sleeved outside the second conduit (6) and can reciprocally move axially between them; The first conduit (5) is connected with the first fixed head (3), and the second conduit (6) is connected with the second fixed head (4); One end of the spring (7) is connected with the first fixed head (3), and the other end is connected with the second fixed head (4); The spring (7) is sleeved outside the first conduit (5) and the second conduit (6); The spring (7) is a tensile spring.

2. The auxiliary rod for a lower-hinged tailgate of an automobile according to claim 1, characterized by The first conduit (5) forms a first open end (8) at one end away from the first fixed head (3); the second conduit (6) forms a second open end (9) at one end away from the second fixed head (4); the first conduit (5) and the second conduit (6) are mutually butted through the first open end (8) and the second open end (9).

3. The auxiliary rod for a lower open type tailgate of an automobile according to claim 2, characterized by, A first spring connecting structure is arranged on one side of the first fixed head (3) close to the first open end (8); a second spring connecting structure is arranged on one side of the second fixed head (4) close to the second open end (9); the first spring connecting structure and the second spring connecting structure are respectively connected with two ends of the spring (7).

4. The auxiliary rod for a lower open type tailgate of an automobile according to claim 2, characterized by, It further comprises a guide block (10), a guide groove is arranged on the first conduit (5) and is arranged along the moving direction of the first conduit (5), the guide block (10) is arranged on one end of the second conduit (6) facing the first conduit (5), and the guide block (10) is reciprocally and slidably arranged in the guide groove.

5. The auxiliary rod for a lower open type tailgate of an automobile according to claim 4, characterized by, It further comprises a stop block (11); the stop block (11) is arranged at the first open end (8) of the guide groove of the first conduit (5) and is used for limiting the guide block (10); a guide hole is arranged on the stop block (11), the second conduit (6) passes through the guide block (10) and is connected with the guide block (10), the second conduit (6) passes through the guide hole of the stop block (11) and is slidably connected with the stop block (11).

6. The auxiliary rod for a lower open type tailgate of an automobile according to claim 1, wherein It further comprises a first protective tube (1) and a second protective tube (2); one end of the first protective tube (1) is connected with the first conduit (5) through the first fixed head (3); one end of the second protective tube (2) is connected with the second conduit (6) through the second fixed head (4); the first protective tube (1) is sleeved outside the second protective tube (2) and can move relative to each other; the first protective tube (1) and the second protective tube (2) are both located outside the first conduit (5), the second conduit (6) and the spring (7).

7. The auxiliary rod for a lower open type tailgate of an automobile according to claim 1, wherein The auxiliary pull rod is rotatably connected with the vehicle body (13) through the first fixed head (3) and the movable piece (12), and is rotatably connected with the vehicle door (14) through the second fixed head (4) and the movable piece (12).

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