Novel hinge and vehicle door

Abstract

The novel hinge comprises a fixed part fixedly arranged on a vehicle body and a rotating part fixedly connected with the vehicle door, and the fixed part and the rotating part are hinged through a rotating shaft. The rotating shaft is provided with an oil inlet unit matched with the end face of the hinged position of the rotating piece and the fixed piece in the rotating axis direction of the rotating piece, and the fixed piece and the rotating piece are provided with oil injection runners matched with the oil inlet unit so that lubricating oil can be conveyed to the end face of the hinged position of the rotating piece and the fixed piece. Through the arrangement of the oil inlet unit and the oil injection runner, during repair and maintenance, lubricating oil can be injected from the outside through the oil inlet to the end face of the hinged position of the rotating piece and the fixed piece for lubrication, so that end face friction after hinging is reduced, and the purposes of preventing abnormal sound and prolonging the service life of the hinge are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of loader hinges, in particular to a novel hinge and a vehicle door. Background Art

[0002] The basic structure of a hinge consists of a fixed part, a rotating part, and a hinge pin. In construction machinery such as loaders, hinges are often used to connect the cab door to the vehicle body. To improve convenience and safety, the hinges are typically designed to open and close at a wide angle. This wide opening and closing allows for easier entry and exit for the driver, while also improving ventilation and visibility in the cab.

[0003] In the above application scenario, since the direction of the hinge's rotation axis is perpendicular to the ground, the hinge is also subject to the greater gravity of the car door while rotating at a large angle. There is great friction at the contact points between the two ends of the rotating part and the hinge of the fixed part. When the car door is used for a long time, problems such as abnormal noise are prone to occur, resulting in a shorter hinge life. Utility Model Content

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a new hinge and door, which can carry a larger load and rotate more conveniently, and can be easily maintained to ensure the service life of the hinge.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The present invention provides a novel hinge, comprising a fixed part fixedly arranged on a vehicle body and a rotating part fixedly connected to a vehicle door, the fixed part and the rotating part being hingedly connected by a rotating shaft, that is, the rotating part is fixedly provided with a rotating part cooperating with the fixed part, the fixed part is fixedly provided with an upper connecting part and a lower connecting part cooperating with both ends of the rotating part, the upper connecting part and the rotating part are provided with a rotating hole cooperating with the rotating shaft, the lower connecting part is provided with a rotating groove cooperating with the rotating shaft, when hinged, the rotating shaft is inserted into the rotating hole and the rotating groove, thus completing the hinge connection between the fixed part and the rotating part, the rotating shaft is provided with an oil inlet unit cooperating with the end face of the hinged joint of the rotating part and the fixed part along the axial direction of rotation of the rotating part, the fixed part and the rotating part are provided with an oil injection flow channel cooperating with the oil inlet unit to deliver lubricating oil to The end face of the hinged joint of the rotating part and the fixed part; an oil inlet channel cooperating with the oil inlet unit is also provided in the rotating shaft, and a concave oil inlet is provided on the top of the rotating shaft to inject oil into the oil inlet channel from the oil inlet; the upper connecting part is provided with a detachable closing cover; the oil inlet unit includes a plurality of oil inlet holes provided on the rotating shaft, and the plurality of oil inlet holes are evenly arranged along the circumference of the rotating shaft, and a distribution groove cooperating with the plurality of oil inlet holes is also provided on the rotating shaft, the oil inlet end of the oil injection channel is connected with the distribution groove, and the outlet end of the oil injection channel is against the end face of the hinged joint of the rotating part and the fixed part; in this way, lubricating oil can be injected from the oil inlet from the outside to the end face of the hinged joint of the rotating part and the fixed part for lubrication, which can reduce friction, prevent the occurrence of abnormal noise, and extend the service life of the hinge.

[0007] In order to further make the lubricating oil more evenly distributed on the end surface of the hinge between the rotating part and the fixed part, the oil injection channel includes several oil injection channels, and the several oil injection channels are distributed along the circumference of the rotating shaft; the oil injection channel of the fixed part is arranged at the tail end of the upper connecting part, and the oil injection channel of the rotating part is arranged at the tail end of the rotating part.

[0008] The beneficial effects of the utility model are:

[0009] The utility model provides an oil inlet unit and an oil injection flow channel, so that during repair and maintenance, lubricating oil can be injected from the outside through the oil inlet into the end surface of the hinge between the rotating part and the fixed part for lubrication, so as to reduce the friction of the end surface after the hinge, thereby preventing the occurrence of abnormal noise and extending the service life of the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the loader driving provided in a specific embodiment of the present utility model;

[0011] Figure 2It is an exploded view of a hinge provided in a specific embodiment of the present invention;

[0012] Figure 3 This is a schematic structural diagram of the hinge provided in a specific embodiment of the present invention when closed;

[0013] Figure 4 This is a schematic structural diagram of the hinge provided in a specific embodiment of the present invention when it is flipped 180°;

[0014] Figure 5 This is a schematic structural diagram of a fixing member provided in a specific embodiment of the present utility model;

[0015] Figure 6 This is a structural diagram of a rotating member provided in a specific embodiment of the present utility model;

[0016] Figure 7 This is a schematic structural diagram of a rotating shaft provided in a specific embodiment of the present utility model;

[0017] Figure 8 It is a schematic diagram of the principle of the hinge provided in a specific embodiment of the present utility model;

[0018] In the picture:

[0019] 1. Car body; 2. Fixed parts; 3. Doors; 4. Rotating parts; 5. Rotating shaft; 6. Oil injection channel;

[0020] 51. Oil inlet unit; 52. Oil inlet channel; 511. Oil inlet hole; 53. Distribution groove; 54. Oil inlet;

[0021] 41. Rotating part;

[0022] 21. Upper connecting portion; 22. Lower connecting portion; 211. Rotating hole; 221. Rotating groove; 212. Closing cover. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods. It should be noted that the accompanying drawings are provided to illustrate the technical solution more intuitively, clearly and unambiguously, and the proportions of some structures are enlarged or reduced compared to the actual proportions.

[0024] As shown in the figure, the utility model provides a new type of hinge, including a fixed part 2 fixed on the vehicle body 1 and a rotating part 4 fixedly connected to the vehicle door 3, the fixed part 2 and the rotating part 4 are hinged by a rotating shaft 5, specifically, the rotating part 4 is fixed with a rotating part 41 that cooperates with the fixed part 2, the fixed part 2 is fixed with an upper connecting part 21 and a lower connecting part 22 that cooperate with both ends of the rotating part 41, the upper connecting part 21 and the rotating part 41 are provided with a rotating hole 211 that cooperates with the rotating shaft 5, and the lower connecting part 22 is provided with a rotating groove 221 that cooperates with the rotating shaft 5. When hinged, the rotating shaft 5 is inserted into the rotating hole 211 and the rotating groove 221; the rotating shaft 5 is provided with an end surface at the hinged position with the rotating part 4 and the fixed part 2 along the axis direction of rotation of the rotating part 4 The oil inlet unit 51 cooperates with the fixed part 2 and the rotating part 4, and is provided with an oil injection channel 6 that cooperates with the oil inlet unit 51 to deliver the lubricating oil to the end face of the hinge of the rotating part 4 and the fixed part 2; in this way, the lubricating oil can be injected into the end face of the hinge of the rotating part 4 and the fixed part 2 through the oil injection channel 6 through the oil inlet unit 51, so that the rotating part 4 can fully lubricate the end face of the hinge while rotating, so as to reduce friction, prevent the occurrence of problems such as abnormal noise, ensure the normal and good opening and closing of the car door, and extend the service life of the hinge; preferably, an oil inlet channel 52 that cooperates with the oil inlet unit 51 is also provided in the rotating shaft 5, and a concave oil inlet port 54 is provided on the top of the rotating shaft 5 to The oil inlet channel 52 is filled with oil, and the oil inlet unit 51 includes a plurality of oil inlet holes 511 provided on the rotating shaft 5. The plurality of oil inlet holes 511 are evenly arranged along the circumference of the rotating shaft 5. The rotating shaft 5 is also provided with a distribution groove 53 that cooperates with the plurality of oil inlet holes 511. The oil inlet end of the oil injection channel 6 is connected with the distribution groove 53, and the outlet end of the oil injection channel 6 is against the end face of the hinge of the rotating part 4 and the fixed part 2. In this way, during repair or maintenance, lubricating oil can be first injected into the oil inlet channel 52 from the oil inlet port 54, and then under the action of gravity, the lubricating oil enters the distribution groove 53 from the oil inlet hole 511 along the oil inlet channel 52. At this time, most of the lubricating oil entering the distribution groove 53 enters the oil injection channel 6 and reaches the rotating part 4 and The end surface of the hinge of the fixing part 2 is lubricated. At this time, in order to improve the lubrication effect, the car door 3 can be actively opened and closed, so that the rotating part 4 rotates, so that the lubricating oil is more evenly distributed on the end surface of the hinge of the rotating part 4 and the fixing part 2; at the same time, a small part of the lubricating oil will penetrate into the rotating hole 211, so that a certain degree of lubrication effect can also be achieved between the rotating shaft 5 and the rotating part 4 and the fixing part 2; further, the upper connecting part 21 is provided with a detachable closing cover 212, which can prevent the entry of external dust. During the installation process of the closing cover 212 as the upper connecting part 21, a certain pressure will also be applied to the oil in the oil inlet channel 52, so that the oil can flow well in the oil inlet hole 511 and the oil injection channel 6.

[0025] In order to make the lubricating oil more evenly distributed on the end surface of the hinge between the rotating part 4 and the fixed part 2, the oil injection channel 6 includes several oil injection channels 6, and the oil injection channels 6 are distributed along the circumference of the rotating shaft 5; the oil injection channel 6 of the fixed part 2 is arranged at the tail end of the upper connecting part 21, and the oil injection channel 6 of the rotating part 4 is arranged at the tail end of the rotating part 41.

[0026] A loader door, using the novel hinge as described above, can achieve nearly 180° opening and closing while also ensuring a good user experience and service life.

[0027] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application are also within the scope of protection of the present invention.

Claims

1. A novel hinge comprising a fixed member (2) fixed to a vehicle body (1) and a rotating member (4) fixedly connected to a vehicle door (3), wherein the fixed member (2) and the rotating member (4) are hingedly connected via a rotating shaft (5), and characterized in that: The rotating shaft (5) is provided with an oil inlet unit (51) along the axial direction of rotation of the rotating member (4) and matched with the end face of the hinged joint between the rotating member (4) and the fixed member (2); the fixed member (2) and the rotating member (4) are provided with an oil injection channel (6) matched with the oil inlet unit (51) to deliver lubricating oil to the end face of the hinged joint between the rotating member (4) and the fixed member (2).

2. A novel hinge according to claim 1, characterized in that: The rotating member (4) is fixedly provided with a rotating portion (41) that cooperates with the fixed member (2); the fixed member (2) is fixedly provided with an upper connecting portion (21) and a lower connecting portion (22) that cooperate with both ends of the rotating portion (41); the upper connecting portion (21) and the rotating portion (41) are provided with a rotating hole (211) that cooperates with the rotating shaft (5); the lower connecting portion (22) is provided with a rotating groove (221) that cooperates with the rotating shaft (5); when hinged, the rotating shaft (5) is inserted into the rotating hole (211) and the rotating groove (221).

3. A new hinge according to claim 2, characterized in that: An oil inlet channel (52) cooperating with the oil inlet unit (51) is further provided in the rotating shaft (5). The oil inlet unit (51) includes a plurality of oil inlet holes (511) provided on the rotating shaft (5). The plurality of oil inlet holes (511) are evenly arranged along the circumference of the rotating shaft (5). A distribution groove (53) cooperating with the plurality of oil inlet holes (511) is further provided on the rotating shaft (5). The oil inlet end of the oil injection channel (6) is connected to the distribution groove (53), and the outlet end of the oil injection channel (6) abuts against the end surface of the hinged joint between the rotating member (4) and the fixed member (2).

4. A novel hinge according to claim 3, characterized in that: The oil injection flow channels (6) include a plurality of oil injection flow channels (6), and the plurality of oil injection flow channels (6) are distributed along the circumference of the rotating shaft (5); the oil injection flow channel (6) of the fixing member (2) is arranged at the tail end of the upper connecting portion (21), and the oil injection flow channel (6) of the rotating member (4) is arranged at the tail end of the rotating portion (41).

5. The novel hinge according to claim 3, characterized in that: A concave oil inlet (54) is provided on the top of the rotating shaft (5) so as to inject oil into the oil inlet channel (52) from the oil inlet (54).

6. A novel hinge according to claim 5, characterized in that: The upper connecting portion (21) is provided with a detachable closing cover (212).

7. A loader door, characterized by: Use the novel hinge as described in any one of claims 1 to 6.

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