Damping hinge for cargo compartment door of light truck

Abstract

The utility model belongs to the technical field of cargo compartment door accessories, and particularly relates to a damping hinge of a cargo compartment door of a light truck, which comprises a damping hinge mounted on a cargo compartment. The damping hinge comprises a hinge shell, a hinge shaft is arranged in the middle of the hinge shell, a cavity used for containing hydraulic oil is formed in the hinge shaft, and a liquid flow opening is formed in the cavity. According to the utility model, the closing speed of the vehicle door is accurately regulated and controlled, when the vehicle door is suddenly closed, internal hydraulic oil can generate inertia counter-acting force, the closing speed of the vehicle door is effectively slowed down or stopped, the use safety is improved, the service life of a product is prolonged, the back-closing speed of the vehicle door becomes very slow under the action of damping force, and the safety of the product is improved. When the vehicle door is closed suddenly or suddenly stopped, enough response time is provided for loading and unloading personnel, accidental injury caused by sudden closing of the vehicle door is avoided, meanwhile, noise and vibration caused by too fast closing of the vehicle door are reduced, and using comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo compartment door accessories, in particular to a damping hinge for a cargo compartment door of a light truck. Background Art

[0002] With the rapid progress of the times and the rapid development of science and technology, all walks of life are showing a booming trend. Among them, the logistics industry, as an important link between production and sales, is developing at a rapid pace, constantly promoting the prosperity and development of the social economy. In the logistics industry, light trucks, as the main force of transportation, have reached an unprecedented level of popularity, and their busy figures can be seen everywhere in the streets and alleys.

[0003] However, with the widespread use of light trucks, some potential safety hazards have gradually emerged. Especially when loading and unloading goods, and in windy weather, the safety of the cargo door is particularly prominent. Generally speaking, after the cargo door is opened, it will be fixed with a hook to prevent the cargo door from closing suddenly under the action of wind. However, in actual operation, due to the negligence of the driver, the hook is often not hung properly. At this time, once a sudden strong wind occurs, the cargo door may rotate and close under the action of the wind, generating a huge inertial force, causing serious damage to surrounding objects and people. Therefore, it is necessary to develop a damping hinge for the cargo door of a light truck. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A damping hinge for a cargo box door of a light truck comprises a damping hinge mounted on the cargo box;

[0007] The damping hinge comprises a hinge shell, a hinge shaft is arranged in the middle of the hinge shell, a chamber for installing hydraulic oil is arranged inside the hinge shaft, and a liquid flow port is arranged inside the chamber;

[0008] A hydraulic baffle is arranged inside the hinge housing through a clamping shaft. The hydraulic baffle includes a baffle plate and a baffle plate. The baffle plate and the baffle plate are used to block the liquid flow port when the door is closed. A spring is arranged at the movable part of the hydraulic baffle plate.

[0009] As a preferred solution of a damping hinge for a light truck cargo compartment door described in the utility model, the damping hinge includes a hinged door mounting end installed on an upper compartment door of the cargo compartment, and a hinged cargo compartment mounting end installed on a cargo compartment of the cargo compartment.

[0010] As a preferred solution of a damping hinge for a light truck cargo compartment door described in the utility model, one side of the hinge shaft is rotationally connected to the side of the hinge cargo compartment mounting end, and the other side is rotationally connected to the side of the hinge compartment door mounting end through a swivel shaft, and the hinge cargo compartment mounting end and the hinge compartment door mounting end are staggered.

[0011] As a preferred solution of a damping hinge for a light truck cargo door described in the utility model, sealing groove 1 and sealing groove 2 are respectively provided at the connection between the upper and lower ends of the hinge shaft and the rotating shaft, and a sealing sealing cover is provided at the upper end of the hinge shaft and a sealing ring is provided at the lower end.

[0012] As a preferred solution of the damping hinge of a light truck cargo door described in the utility model, a pressure reducing device is arranged on one side of the hinge shaft, and the pressure reducing device includes a tapered hole and a reinforcing rib.

[0013] The beneficial effects of the utility model are as follows: by cleverly adding hydraulic oil to the internal structure of the hinge, precise control of the closing speed of the door is achieved; when the door is suddenly closed, the internal hydraulic oil will generate an inertial reaction force, effectively slowing down or stopping the closing speed of the door, thereby improving the safety of use and increasing the service life of the product; under the action of the damping force, the speed at which the door returns to close will become very slow, or it will suddenly stop closing, thereby providing sufficient reaction time for the loading and unloading personnel and avoiding accidental injuries caused by the sudden closing of the door; at the same time, it also reduces the noise and vibration caused by the door closing too quickly, thereby improving the comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 This is a schematic diagram of the structure of the cargo compartment of the utility model after the hinge is installed;

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

[0017] Figure 3 This is a schematic diagram of the structure of the hinge housing of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the damping sheet of the utility model;

[0019] Figure 5 This is a schematic structural diagram of a baffle plate of the utility model from a side view;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the baffle of the utility model;

[0021] Figure 7 It is a schematic diagram of the structure inside the shaft seal of the utility model.

[0022] In the figure: 1. cargo compartment; 2. damping hinge; 3. hinge compartment door mounting end; 4. hinge housing; 5. hinge cargo compartment mounting end; 6. slewing shaft; 7. liquid flow port; 8. sealing groove one; 9. pressure reducing device; 10. sealing groove two; 11. hinge shaft; 12. baffle plate; 13. clamping shaft; 14. baffle plate; 15. hydraulic baffle plate; 16. sealing cover; 17. shaft seal; 18. sealing ring; 19. spring. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1-Figure 7 , shows a schematic diagram of the structure of a damping hinge implementation method of a light truck cargo door of the utility model, please refer to Figure 1-Figure 7 , a damping hinge for a light truck cargo door is introduced in detail.

[0028] A damping hinge for a cargo compartment door of a light truck comprises a damping hinge 2 mounted on a cargo compartment 1;

[0029] The damping hinge 2 includes a hinge housing 4, a hinge shaft 11 is arranged in the middle of the hinge housing 4, a chamber for installing hydraulic oil is opened inside the hinge shaft 11, and a liquid flow port 7 is opened inside the chamber; a hydraulic baffle 15 is arranged inside the hinge housing 4 through a clamping shaft 13, and the hydraulic baffle 15 includes a baffle plate 12 and a baffle plate 14, and the baffle plate 12 and the baffle plate 14 are used to block the liquid flow port 7 when the compartment door is closed, and a spring 19 is arranged at the movable part of the hydraulic baffle plate 15.

[0030] The damping hinge 2 includes a hinged door mounting end 3 mounted on an upper door of the cargo compartment 1 , and a hinged cargo compartment mounting end 5 mounted on a cargo compartment of the cargo compartment 1 .

[0031] One side of the hinge shaft 11 is rotatably connected to the side of the hinge cargo compartment mounting end 5, and the other side is rotatably connected to the side of the hinge compartment door mounting end 3 through the rotary shaft 6. The hinge cargo compartment mounting end 5 and the hinge compartment door mounting end 3 are staggered.

[0032] The upper and lower ends of the hinge shaft 11 are connected to the rotary shaft 6 with a sealing groove 1 8 and a sealing groove 2 10 respectively. The upper end of the hinge shaft 11 is provided with a sealing cover 16 and the lower end is provided with a sealing ring 18.

[0033] A decompression device 9 is provided on one side of the hinge shaft 11 , and the decompression device 9 includes a tapered hole and a reinforcing rib.

[0034] In the specific use process, after the door of the cargo compartment 1 is opened, the door of the cargo compartment 1 is closed due to the wind force;

[0035] The hinged door mounting end 3 drives the hinge shaft 11 to rotate, and the hydraulic oil flows through the liquid flow port 7; the door of the cargo compartment 1 closes too quickly, and the hydraulic baffle 15 squeezes the spring 19, quickly closing the hydraulic baffle 15 and the liquid flow port 7, and the hydraulic oil circulates in the middle section;

[0036] In order to prevent the inertia of sudden stop from being too large and affecting the service life of the hinge, there are 4 conical holes and reinforcing ribs on 9, which are used to reduce pressure on both sides of the sealing blade, and can buffer the force of sudden closing of the door;

[0037] When the door force is weakened and moves slowly, the hydraulic baffle 15 opens under the force of the spring 19, so that the oil flow rate increases and the door can rotate slowly.

[0038] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A damping hinge for a light truck cargo door, characterized in that: It comprises a damping hinge (2) installed on a cargo compartment (1); The damping hinge (2) comprises a hinge housing (4), a hinge shaft (11) is arranged in the middle of the hinge housing (4), a chamber for installing hydraulic oil is provided inside the hinge shaft (11), and a liquid flow port (7) is provided inside the chamber; A hydraulic baffle (15) is arranged inside the hinge housing (4) via a clamping shaft (13); the hydraulic baffle (15) comprises a baffle plate (12) and a baffle plate (14); the baffle plate (12) and the baffle plate (14) are used to block the liquid flow port (7) when the compartment door is closed; a spring (19) is arranged at the movable part of the hydraulic baffle plate (15).

2. The damping hinge for a light truck cargo door according to claim 1, characterized in that: The damping hinge (2) comprises a hinged door mounting end (3) mounted on an upper door of a cargo compartment (1), and a hinged cargo compartment mounting end (5) mounted on a cargo compartment of the cargo compartment (1).

3. The damping hinge for a light truck cargo door according to claim 2, characterized in that: One side of the hinge shaft (11) is rotatably connected to the side of the hinged cargo compartment mounting end (5), and the other side is rotatably connected to the side of the hinged compartment door mounting end (3) through a rotary shaft (6); the hinged cargo compartment mounting end (5) and the hinged compartment door mounting end (3) are arranged alternately.

4. The damping hinge for a light truck cargo door according to claim 3, characterized in that: The upper and lower ends of the hinge shaft (11) are connected to the rotary shaft (6) with sealing grooves 1 (8) and 2 (10) respectively. The upper end of the hinge shaft (11) is provided with a sealing cover (16) and the lower end is provided with a sealing ring (18).

5. The damping hinge for a light truck cargo door according to claim 1, characterized in that: A decompression device (9) is provided on one side of the hinge shaft (11), and the decompression device (9) comprises a tapered hole and a reinforcing rib.

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