Back door hinge assembly

Abstract

The present invention discloses a back door hinge assembly, which relates to the technical field of hinges, and includes a fixed seat, both sides of the fixed seat are provided with connecting rope grooves, both sides of the fixed seat are connected with bolts, both sides of the fixed seat are fixedly connected with oil tanks, one end of the oil tank close to the bolt is provided with an oil filling hole, the inner thread of the oil filling hole is connected with a wooden plug, a pressing assembly is arranged inside the oil tank, the opposite ends of the two oil tanks are connected with oil pipes, both sides of the fixed seat are fixedly connected with a long slide block, the front of the long slide block is connected with a slider through the slide, the top of the slider is fixedly connected with a protective shell, and the end of the slider close to the fixed seat is fixedly connected with a connecting rope. The back door hinge assembly prevents the hinge shaft from oxidizing and rusting due to contact with air due to long-term use, and the hinge shaft is prevented from rusting and causing difficulty in hinge rotation, and prevents the outside of the hinge shaft from contacting with water, which greatly improves the service life of the hinge shaft.

Description

Technical Field

[0001] The invention relates to the technical field of hinges, and in particular to a back door hinge assembly. Background Art

[0002] The hinge is an indispensable connecting part during the installation and use of the tailgate. The hinge is a common connecting part with the advantages of quick installation and easy use. Traditional hinges do not have anti-rust devices during long-term use. The hinge shaft oxidizes and rusts due to contact with air for a long time. The rust on the hinge shaft makes it difficult to rotate the hinge. Therefore, a self-lubricating tailgate hinge assembly is urgently needed. Summary of the invention

[0003] The object of the present invention is to provide a tailgate hinge assembly to solve the problem in the above-mentioned background technology that there is no anti-rust device in the process, the hinge shaft is oxidized and rusted due to contact with air due to long-term use, and the hinge shaft is rusted, resulting in difficulty in hinge rotation.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a back door hinge assembly, comprising a fixed seat, bolts are passed through the two sides of the fixed seat, an oil tank is fixedly connected to the two sides of the fixed seat, a pressing assembly is arranged inside the oil tank, and oil pipes are connected to the opposite ends of the two oil tanks, a slide block is fixedly connected to the two sides of the fixed seat, a sliding block is slidably connected to the front side of the slide block through the slide, a protective shell is fixedly connected to the top of the sliding block, a connecting rope is fixedly connected to the end of the sliding block close to the fixed seat, an end of the connecting rope away from the sliding block is connected to the end of the pressing assembly away from the bolt through a guide pulley, a hinge shaft is passed through the interior of the fixed seat, an end of the oil pipe away from the oil tank contacts with the bottom of the hinge shaft, a bushing is sleeved on the outside of the hinge shaft, a swing arm is fixedly connected to the top of the bushing, and bumps are fixedly connected to the two sides of the front side of the bushing.

[0005] Optionally, the pressing assembly includes a piston, the outside of the piston is connected to the inside of the oil tank, the top of the piston is fixedly connected to a T-rod, and both sides of the bottom of the T-rod are connected to the top of the oil tank through a return spring A.

[0006] Optionally, one end of the sliding block close to the fixed seat is connected to one end of the inner part of the sliding slot long block close to the fixed seat through a return spring A.

[0007] Optionally, connecting rope grooves are provided on both sides of the fixing seat.

[0008] Optionally, connection holes are provided on both sides of the front side of the swing arm.

[0009] Optionally, an oil filling hole is opened at one end of the oil tank close to the bolt, and a wooden plug is connected to the internal thread of the oil filling hole.

[0010] Technical effects and advantages of the present invention:

[0011] 1. The back door hinge assembly automatically lubricates the hinge shaft during the opening and closing process to prevent the hinge shaft from oxidizing and rusting due to long-term use and contact with air. Rust on the hinge shaft causes difficulty in hinge rotation.

[0012] 2. The back door hinge assembly automatically protects the hinge shaft through a protective shell during the door closing process to prevent the outside of the hinge shaft from contacting water, greatly improving the service life of the hinge shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front schematic diagram of the structure of the present invention;

[0014] Figure 2 This is a schematic diagram of the frontal anatomy of the structure of the present invention;

[0015] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram.

[0016] In the figure: 1 fixing seat, 2 bolts, 3 oil tank, 4 pressing assembly, 5 oil pipe, 6 slide block, 7 slider, 8 connecting rope, 9 protective shell, 10 hinge shaft, 11 bushing, 12 swing arm, 13 protrusion. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the terms "first", "second", etc. 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 the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] The present invention provides Figure 1-3 , a back door hinge assembly shown in the figure comprises a fixing seat 1, both sides of the fixing seat 1 are provided with connecting rope grooves, both sides of the inside of the fixing seat 1 are penetrated and connected with bolts 2, the bolts 2 are convenient for fixing the fixing seat 1, both sides of the inside of the fixing seat 1 are fixedly connected with oil tanks 3, one end of the oil tank 3 close to the bolt 2 is provided with an oil filling hole, the inner thread of the oil filling hole is connected with a wooden plug, a pressing component 4 is arranged inside the oil tank 3, the pressing component 4 comprises a piston, the outer part of the piston is connected to the inside of the oil tank 3, the top of the piston is fixedly connected with a T-bar, both sides of the bottom of the T-bar are connected to the top of the oil tank 3 through a return spring A, the opposite ends of the two oil tanks 3 are connected with oil pipes 5, both sides of the fixing seat 1 are fixedly connected with a slide block 6, the front side of the slide block 6 is slidably connected with a slider 7 through a slide, the end of the slider 7 close to the fixing seat 1 is connected to the end of the inside of the slide block 6 close to the fixing seat 1 through a return spring A, the top of the slider 7 is fixedly connected with a protective shell 9, and the protective shell 9 has The function of protecting the hinge shaft 10 is that one end of the slider 7 close to the fixed seat 1 is fixedly connected with a connecting rope 8, and the other end of the connecting rope 8 away from the slider 7 is connected with the end of the pressing assembly 4 away from the bolt 2 through a guide pulley. The interior of the fixed seat 1 is penetrated by a hinge shaft 10, and the end of the oil pipe 5 away from the oil tank 3 is in contact with the bottom of the hinge shaft 10. The outside of the hinge shaft 10 is sleeved with a bushing 11, and the top of the bushing 11 is fixedly connected with a swing arm 12. Both sides of the front of the swing arm 12 are provided with connecting holes, and both sides of the front of the bushing 11 are fixedly connected with bumps 13. The back door hinge assembly automatically lubricates the hinge shaft 10 during the opening and closing of the back door to prevent the hinge shaft 10 from oxidizing and rusting due to long-term use and contacting with the air. The rust of the hinge shaft makes it difficult for the hinge to rotate. The back door hinge assembly automatically protects the hinge shaft 10 through the protective shell 9 during closing the door to prevent the outside of the hinge shaft 10 from contacting with water, which greatly improves the service life of the hinge shaft 10.

[0022] The practical working principle of the back door hinge assembly is as follows: during use, the fixing seat 1 is installed and fixed by the bolt 2, and the swing arm 12 is connected to the back door. During use, the back door drives the bushing 11 to rotate through the swing arm 12, and during the rotation of the bushing 11, the pressing component 4 is driven to move through the protrusion 13. During the movement of the pressing component 4, the oil tank 3 is cooperated with the oil pipe 5 to automatically lubricate the hinge shaft 10 with the lubricating oil inside the oil tank 3. During the installation of the fixing seat 1 and the opening and closing of the back door, the hinge shaft 10 is automatically lubricated to prevent the hinge shaft 10 from oxidizing and rusting due to contact with air due to long-term use, and the rust of the hinge shaft makes it difficult to rotate the hinge. At the same time, the pressing component 4 automatically drives the slider 7 to move through the connecting rope 8 during the movement, and the slider 7 automatically drives the protective shell 9 to protect the outside of the hinge shaft 10 during the movement. During the closing process, the hinge shaft 10 is automatically protected by the protective shell 9 to prevent the outside of the hinge shaft 10 from contacting with water, thereby greatly improving the service life of the hinge shaft 10.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A back door hinge assembly, comprising a fixing seat (1), characterized in that: Bolts (2) are connected through both sides of the interior of the fixing seat (1), oil tanks (3) are fixedly connected to both sides of the interior of the fixing seat (1), a pressing assembly (4) is arranged inside the oil tank (3), and oil pipes (5) are connected to opposite ends of the two oil tanks (3). Slide blocks (6) are fixedly connected to both sides of the fixing seat (1), and a slider (7) is slidably connected to the front side of the slide block (6) through the slide, and a protective shell (9) is fixedly connected to the top of the slider (7). One end of the slider (7) close to the fixing seat (1) A connecting rope (8) is fixedly connected, and one end of the connecting rope (8) away from the slider (7) is connected to one end of the pressing assembly (4) away from the bolt (2) through a guide pulley. A hinge shaft (10) is connected through the interior of the fixing seat (1). One end of the oil pipe (5) away from the oil tank (3) contacts the bottom of the hinge shaft (10). A bushing (11) is sleeved on the outside of the hinge shaft (10). A swing arm (12) is fixedly connected to the top of the bushing (11). Both sides of the front of the bushing (11) are fixedly connected to bumps (13).

2. The back door hinge assembly according to claim 1, characterized in that: The pressing assembly (4) comprises a piston, the outside of the piston is connected to the inside of the oil tank (3), the top of the piston is fixedly connected to a T-shaped rod, and both sides of the bottom of the T-shaped rod are connected to the top of the oil tank (3) via a return spring A.

3. The back door hinge assembly according to claim 1, characterized in that: One end of the sliding block (7) close to the fixed seat (1) is connected to one end of the sliding slot long block (6) close to the fixed seat (1) via a return spring A.

4. The back door hinge assembly according to claim 1, characterized in that: Both sides of the fixing seat (1) are provided with connecting rope grooves.

5. The back door hinge assembly according to claim 1, characterized in that: Connection holes are provided on both sides of the front side of the swing arm (12).

6. The back door hinge assembly according to claim 1, characterized in that: An oil filling hole is provided at one end of the oil tank (3) close to the bolt (2), and a wooden plug is connected to the inner thread of the oil filling hole.

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