Connecting device for automobile part automobile door

Abstract

The utility model relates to the technical field of automobile parts, and discloses a connecting device for an automobile part door, which comprises a first hinge mounting piece and a second hinge mounting piece, and second hinge hinging pieces are fixedly mounted on the upper portion and the lower portion of one end of the second hinge mounting piece. The upper part and the lower part of one end of the first hinge mounting piece are fixedly provided with first hinge hinging pieces, and are hinged with a second hinge mounting piece through the first hinge hinging pieces, the hollow hinging bolts and the second hinge hinging pieces; the connecting device comprises a hollow hinge bolt, the hollow hinge bolt is internally filled with liquid lubricating oil, and a plurality of oil outlet holes are formed in the upper portion and the lower portion of the hollow hinge bolt at equal intervals in a circumferential array mode, the hollow hinge bolt is internally filled with liquid lubricating oil, and the oil outlet holes are formed in the upper portion and the lower portion of the hollow hinge bolt at equal intervals in a circumferential array mode. An elastic blocking piece is installed in the hollow hinge bolt, and the elastic blocking piece can be regularly and rapidly lifted to enable lubricating oil to flow out to lubricate the automobile hinge.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a connecting device for automotive door components. Background Technology

[0002] Automotive door hinges are commonly used to connect car doors, typically installed on the front and rear doors. They are mechanical devices, also known as hinges, used to connect two solid parts and allow them to rotate relative to each other. These hinges can be made of movable components or foldable materials, and their key function is to provide a cushioning effect when the door or tailgate closes, effectively reducing the noise of impacts with other parts and thus improving passenger comfort.

[0003] However, existing car door hinges require regular lubrication with lubricating oil to ensure smooth operation and reduce noise. The current lubrication and maintenance of car door hinges generally requires manual application of lubricating oil to the hinge joints, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a connecting device for automotive door components. The hollow hinge bolt of the connecting device for automotive door components disclosed in this utility model is filled with liquid lubricating oil. Oil outlet holes are opened at the upper and lower parts of the hollow hinge bolt. An elastic sealing element is installed inside the hollow hinge bolt. The elastic sealing element can be lifted quickly and periodically to allow the lubricating oil to flow out and lubricate the automotive hinge, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connecting device for automotive door components, comprising a first hinge mounting plate and a second hinge mounting plate. A second hinge connecting plate is fixedly mounted on both the upper and lower parts of one end of the second hinge mounting plate. A first hinge connecting plate is fixedly mounted on both the upper and lower parts of one end of the first hinge mounting plate, and the second hinge mounting plate is hinged to the first hinge connecting plate, a hollow hinge bolt, and the second hinge connecting plate. The hollow hinge bolt is filled with liquid lubricating oil, and its upper and lower parts are equidistantly arrayed with several oil outlet holes. A bottom piston plate is slidably connected to the bottom of the inner wall of the hollow hinge bolt. A central rod is fixedly mounted at the top axis of the bottom piston plate. Sealing rings that can block the oil outlet holes are fixedly mounted on the upper and lower parts of the central rod at the corresponding oil outlet holes. A spring is fitted on the upper part of the central rod. The central rod is slidably connected to the top of the hollow hinge bolt, and a pull head is welded to the top of the central rod.

[0006] Preferably, the outer wall of the bottom piston plate is bonded with a rubber sheet and is slidably connected to the inner wall of the hollow hinge bolt through the rubber sheet.

[0007] Preferably, the top oil filler port of the hollow hinge bolt is detachably fitted with a sealing cap.

[0008] Preferably, a support cylinder is sleeved on the middle of the outer side wall of the hollow hinge bolt, and the support cylinder is supported between the first hinge plates at the upper and lower ends.

[0009] Preferably, the upper and lower parts of one end of the first hinge mounting piece are reinforced with a first hinge connecting piece by a first horizontal reinforcing piece, and the side of one end of the first hinge mounting piece is reinforced with a first hinge connecting piece by a first vertical reinforcing piece.

[0010] Preferably, the upper and lower parts of one end of the second hinge mounting piece are reinforced with the second hinge connecting piece by the second horizontal reinforcing piece.

[0011] Preferably, fastening bolts are installed in the mounting holes at the other ends of the first hinge mounting plate and the second hinge mounting plate, and a first washer passes through the head of the fastening bolt.

[0012] Preferably, the hollow hinge bolt has a second washer and nut detachably installed at its tail.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model discloses a hollow hinge bolt for a car door connecting device, which is filled with liquid lubricating oil. The hollow hinge bolt has oil outlet holes at both the upper and lower parts, and an elastic sealing element is installed inside. The elastic sealing element can be periodically and quickly lifted to allow lubricating oil to flow out and lubricate the car hinge. This solves the problem that existing car door hinges require regular lubrication to ensure smooth operation and reduce noise. Currently, lubrication and maintenance of existing car door hinges generally require manual application of lubricating oil to the hinge connection, which is very troublesome. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the hollow hinge bolt of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the hollow hinge bolt of this utility model;

[0019] Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. First hinge mounting plate; 2. First hinge connecting plate; 3. First longitudinal reinforcing plate; 4. First transverse reinforcing plate; 5. Second hinge mounting plate; 6. Second hinge connecting plate; 7. Second transverse reinforcing plate; 8. Fastening bolt; 9. First washer; 10. Second washer; 11. Nut; 12. Hollow hinge bolt; 13. Support cylinder; 14. Oil outlet; 15. Sealing cap; 16. Pull head; 17. Spring; 18. Sealing ring; 19. Center rod; 20. Bottom piston plate; 21. Rubber plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 The diagram shows a connecting device for a car door, including a first hinge mounting plate 1 and a second hinge mounting plate 5. A second hinge connecting plate 6 is fixedly mounted on both the upper and lower parts of one end of the second hinge mounting plate 5. A first hinge connecting plate 2 is fixedly mounted on both the upper and lower parts of one end of the first hinge mounting plate 1, and the second hinge mounting plate 5 is hinged to it via the first hinge connecting plate 2, a hollow hinge bolt 12, and the second hinge connecting plate 6. The hollow hinge bolt 12 is filled with liquid lubricating oil, and has several oil outlet holes 14 arranged in a circumferentially equidistant array on both its upper and lower parts. A bottom piston plate 20 is slidably connected to the bottom of the inner wall of the hollow hinge bolt 12. A central rod 19 is fixedly installed at the top axis. A sealing ring 18 is fixedly installed at the upper and lower parts of the central rod 19 corresponding to the oil outlet 14, which can block the oil outlet 14. A spring 17 is sleeved on the upper part of the central rod 19. The central rod 19 is slidably connected to the top of the hollow hinge bolt 12, and a pull head 16 is welded to the top of the central rod 19. The hollow hinge bolt 12 of the automotive door connecting device disclosed in this utility model is filled with liquid lubricating oil. Oil outlets 14 are opened at the upper and lower parts of the hollow hinge bolt 12. An elastic sealing element is installed inside the hollow hinge bolt 12. The elastic sealing element can be lifted quickly and periodically to allow the lubricating oil to flow out and lubricate the automotive hinge.

[0023] Furthermore, a rubber sheet 21 is bonded to the outer wall of the bottom piston plate 20 and slidably connected to the inner wall of the hollow hinge bolt 12 through the rubber sheet 21, resulting in a good sealing effect; furthermore, a sealing cap 15 is detachably installed on the top oil filling port of the hollow hinge bolt 12 for convenient oiling; furthermore, a support cylinder 13 is sleeved in the middle of the outer wall of the hollow hinge bolt 12, and the support cylinder 13 is supported between the first hinge plates 2 at the upper and lower ends, providing stable support; furthermore, the upper and lower parts of one end of the first hinge mounting plate 1 are reinforced and connected to the first hinge plate 2 by the first horizontal reinforcing plate 4, and the first... A hinge mounting plate 1 has a first hinge connecting plate 2 reinforced by a first longitudinal reinforcing plate 3 on one side of its side. Furthermore, a second hinge mounting plate 5 has a second hinge connecting plate 6 reinforced by a second transverse reinforcing plate 7 on both its upper and lower parts of one end. Furthermore, fastening bolts 8 are installed in the mounting holes at the other ends of both the first hinge mounting plate 1 and the second hinge mounting plate 5, with a first washer 9 passing through the head of the fastening bolt 8 for easy installation. Furthermore, a second washer 10 and a nut 11 are detachably installed at the tail of the hollow hinge bolt 12 for easy fixing.

[0024] In this design, during use, the hollow hinge bolt 12 of the automotive door connecting device disclosed in this utility model is filled with liquid lubricating oil. Oil outlet holes 14 are provided at both the upper and lower parts of the hollow hinge bolt 12. An elastic sealing element is installed inside the hollow hinge bolt 12, which can be periodically and quickly lifted to allow lubricating oil to flow out and lubricate the automotive hinge. First, open the detachable sealing cap 15 at the top of the hollow hinge bolt 12's oil filler port, fill the hollow hinge bolt 12 with liquid lubricating oil, and then replace the sealing cap 15. Under normal conditions, the spring 17 is located at the top of the upper sealing ring disc 18, abutting against the sealing ring disc 18 and the center rod. The piston ring 18 and the bottom piston plate 20 are integrated to prevent them from moving upwards and leaking oil. At this time, the sealing ring 18 blocks the oil outlet 14. When lubrication is needed, the pull head 16 is pulled upwards by hand. The sealing ring 18, the center rod 19 and the bottom piston plate 20 move upwards as a whole. When the sealing ring 18 at the top and bottom moves upwards, the oil outlet 14 is exposed. When the bottom piston plate 20 moves upwards, the lubricating oil is squeezed upwards and quickly leaks out of the oil outlet 14 to lubricate the hinge. At this time, the spring 17 is compressed. When enough lubricating oil flows out, the pull head 16 is released and the spring 17 rebounds to reset the sealing ring 18, the center rod 19 and the bottom piston plate 20 as a whole.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connecting device for automotive door components, comprising a first hinge mounting plate (1) and a second hinge mounting plate (5), wherein a second hinge connecting plate (6) is fixedly mounted on both the upper and lower parts of one end of the second hinge mounting plate (5), and a first hinge connecting plate (2) is fixedly mounted on both the upper and lower parts of one end of the first hinge mounting plate (1), and the second hinge mounting plate (5) is hinged to the first hinge connecting plate (2), a hollow hinge bolt (12), and the second hinge connecting plate (6), characterized in that: The hollow hinge bolt (12) is filled with liquid lubricating oil and has several oil outlet holes (14) arranged in a circular equidistant array at the top and bottom. A bottom piston plate (20) is slidably connected to the bottom of the inner wall of the hollow hinge bolt (12). A center rod (19) is fixedly installed at the top axis of the bottom piston plate (20). A sealing ring plate (18) that can block the oil outlet hole (14) is fixedly installed at the top and bottom of the center rod (19). A spring (17) is sleeved on the upper part of the center rod (19). The center rod (19) is slidably connected to the top of the hollow hinge bolt (12) and a pull head (16) is welded to the top of the center rod (19).

2. The connecting device for automotive door components according to claim 1, characterized in that: The outer wall of the bottom piston plate (20) is bonded with a rubber sheet (21) and is slidably connected to the inner wall of the hollow hinge bolt (12) through the rubber sheet (21).

3. The connecting device for automotive door components according to claim 1, characterized in that: The top oil filling port of the hollow hinge bolt (12) is detachably fitted with a sealing cap (15).

4. A connecting device for automotive door components according to claim 1, characterized in that: The hollow hinge bolt (12) has a support cylinder (13) fitted in the middle of its outer wall, and the support cylinder (13) is supported between the first hinge plates (2) at the upper and lower ends.

5. A connecting device for automotive door components according to claim 1, characterized in that: The first hinge mounting piece (1) has a first hinge connecting piece (2) reinforced at both the upper and lower parts of one end by a first horizontal reinforcing piece (4), and the first hinge connecting piece (2) is reinforced at one side of one end of the first hinge mounting piece (1) by a first vertical reinforcing piece (3).

6. A connecting device for automotive door components according to claim 1, characterized in that: The second hinge mounting piece (5) has a second hinge connecting piece (6) reinforced at both the upper and lower parts of one end by a second horizontal reinforcing piece (7).

7. A connecting device for automotive door components according to claim 1, characterized in that: Fastening bolts (8) are installed in the mounting holes at the other ends of the first hinge mounting plate (1) and the second hinge mounting plate (5), and the head of the fastening bolt (8) is fitted with a first washer (9).

8. A connecting device for automotive door components according to claim 1, characterized in that: The hollow hinge bolt (12) is detachably fitted with a second washer (10) and a nut (11) at its tail.

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