Automatic buffering door opening and closing hinge for automobile container door

Abstract

The utility model relates to the technical field of automobile container door hinges, and discloses an automatic buffering door opening and closing hinge for an automobile container door, which comprises a limiting plate, a round hole is formed in the upper surface of the limiting plate, a rotating groove is formed in the limiting plate, and a rotating ring is fixedly connected to the lower surface of the rotating groove. A hinge is rotationally connected to the inner wall of the rotating ring, a connecting mechanism is arranged on the inner wall of the rotating groove, and the connecting mechanism comprises a fixing groove formed in the bottom of the inner wall of the rotating groove. When the door is opened, the hinge can drive the baffle to rotate, the baffle can be in contact with the spring rods in the rotating process, so that the impact force of opening the door is buffered, the service life of the device is prolonged, and when the door is closed, the baffle can also be in contact with the other spring rod, so that the impact force of closing the door is buffered, and the service life of the device is prolonged. And the door can be closed only after the spring rod is extruded, so that the service life of the device is prolonged, and noise can be reduced when the door is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile cargo box door hinges, in particular to an automatic buffer opening and closing door hinge for an automobile cargo box door. Background Art

[0002] The automobile cargo door hinge assembly is a component welded on the automobile cargo door assembly. Its function is to open the cargo door to facilitate loading and unloading of trucks.

[0003] The application number is 202021871351.7, which discloses an automatic buffering door hinge for a car cargo box door, and relates to the technical field of door hinges. Gears are fixedly installed at both ends of the rotating shaft, and a slider is slidably connected inside the groove. Two racks are fixedly installed on the surface of the slider, and two first springs are fixedly installed inside the groove. The utility model, by setting a buffer device, when the cargo box door is opened and closed, the cargo box door will drive the first hinge to flip with the rotating shaft as the axis, the rotation of the rotating shaft will drive the gear to rotate, the rotation of the gear will drive the rack to rotate, the rotation of the rack will drive the slider to slide in the groove, the sliding of the slider will squeeze the first spring, the first spring is compressed, and its own resilience is used to buffer the force. When opening and closing the cargo box door, it is easy to cause excessive switching force, causing greater wear on the cargo box door, and shortening the service life of the cargo box door;

[0004] Although this setting can buffer the force, it can easily cause excessive opening and closing force when opening and closing the cargo door, causing greater wear and tear on the cargo door, shortening the service life of the cargo door. However, when the device is damaged and needs to be replaced, it is very inconvenient because it requires the assistance of multiple tools to replace it. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model discloses an automatic buffer door hinge for a car cargo box door, comprising a limit plate, a circular hole is provided on the upper surface of the limit plate, a rotating groove is provided inside the limit plate, a rotating ring is fixedly connected to the lower surface of the rotating groove, and a hinge is rotatably connected to the inner wall of the rotating ring.

[0007] Furthermore, a connecting mechanism is provided on the inner wall of the rotating groove, and the connecting mechanism includes a fixed groove opened at the bottom of the inner wall of the rotating groove, a fixed column is fixedly connected to the bottom of the inner wall of the fixed groove, and a fixed block is fixedly connected to the upper surface of the fixed column. This arrangement is so that when a new hinge needs to be replaced, it is only necessary to align the new hinge with the round hole, and then press down to make the connecting block and the blocking block squeeze the limit block, so that the upper surface of the connecting block contacts the top of the inner wall of the extension groove, and the lower surface of the blocking block contacts the upper surface of the limit block, so that the hinge and the limit plate are clamped together. This arrangement solves the problem of difficulty in replacing the device after it is damaged.

[0008] Furthermore, a telescopic rod is fixedly connected to the upper surface of the fixed block, a blocking block is fixedly connected to the upper surface of the telescopic rod, a spring is fixedly connected to the upper surface of the blocking block, and the upper end of the spring is fixedly connected to the connecting block.

[0009] Furthermore, a limiting mechanism is provided on the lower surface of the hinge, and the limiting mechanism includes an extension groove opened on the lower surface of the hinge, and limiting grooves are opened on the left and right sides of the inner wall of the extension groove. A telescopic push rod is fixedly connected to the inner wall of the limiting groove, and a buffer spring is fixedly connected to the surface of the telescopic push rod.

[0010] Furthermore, one end of the telescopic push rod away from the extension slot is fixedly connected to the limit block, and one end of the buffer spring away from the extension slot is fixedly connected to the surface of the limit block. This arrangement is for when the hinge is damaged and needs to be replaced, it is only necessary to press the hinge downward to make the telescopic rod extend and retract, so that the fixed block moves upward and contacts the inclined surfaces of the two limit blocks, so that the two limit blocks are squeezed and then contracted through the buffer spring, so that the fixed block can pass through the obstruction of the limit block, and then the rebound force of the spring after being squeezed pushes the fixed block, the blocking block and the connecting block downward, so that the fixed block squeezes the limit block again, so that the blocking block and the connecting block pass through the limit block, thereby separating the damaged hinge from the limit plate.

[0011] Furthermore, a buffer mechanism is provided on the inner wall of the rotating groove, and the buffer mechanism includes an extension plate fixedly connected to the inner wall of the rotating groove, a square plate fixedly connected to the inner wall surface of the extension plate, a spring rod fixedly connected to the surface of the square plate, and a baffle fixedly connected to the hinge surface. This arrangement is so that when the door is opened, the hinge will drive the baffle to rotate, and it will contact the spring rod during the rotation process, thereby buffering the impact force of opening the door, thereby delaying the service life of the device, and when closing the door, the baffle will also contact another spring rod, thereby buffering the impact force of closing the door, and the spring rod needs to be squeezed before the door can be closed. This arrangement extends the service life of the device and can reduce noise when closing the door.

[0012] Furthermore, the number of the telescopic push rods is set to two, and the two telescopic push rods are symmetrically arranged with the extension slot as the center, the number of the buffer springs is set to two, and the two buffer springs are symmetrically arranged with the extension slot as the center, and the number of the limit blocks is set to two, and the two limit blocks are symmetrically arranged with the extension slot as the center.

[0013] The utility model has the following beneficial effects:

[0014] (1) When the door is opened, the hinge of the utility model drives the baffle to rotate, and during the rotation process, it will contact the spring rod, thereby buffering the impact force of opening the door, thereby extending the service life of the device; and when closing the door, the baffle will also contact another spring rod, thereby buffering the impact force of closing the door, and the spring rod needs to be squeezed before the door can be closed. This arrangement extends the service life of the device and can reduce the generation of noise when closing the door.

[0015] (2) If the hinge of the utility model is damaged and needs to be replaced, it is only necessary to press down the hinge to extend and retract the telescopic rod, thereby allowing the fixed block to move upward and contact the inclined surfaces of the two limit blocks, so that the two limit blocks are squeezed and then contracted by the buffer spring, so that the fixed block can pass through the obstruction of the limit blocks, and then the rebound force after being squeezed by the spring pushes the fixed block, the blocking block and the connecting block downward, so that the fixed block squeezes the limit block again, so that the blocking block and the connecting block pass through the limit block, thereby separating the damaged hinge from the limit plate, and then aligning the new hinge with the circular hole and then pressing down, so that the connecting block and the blocking block squeeze the limit block, so that the upper surface of the connecting block contacts the top of the inner wall of the extension groove, and the lower surface of the blocking block contacts the upper surface of the limit block, thereby clamping the hinge and the limit plate. This arrangement solves the problem of difficulty in replacing the device after it is damaged.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the limit plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the extension plate of the utility model;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A in FIG.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. limit plate; 12. round hole; 13. hinge; 14. rotating groove; 15. rotating ring; 2. connecting mechanism; 21. fixed groove; 22. fixed column; 23. fixed block; 24. telescopic rod; 25. blocking block; 26. spring; 27. connecting block; 3. buffer mechanism; 31. extension plate; 32. square plate; 33. spring rod; 34. baffle; 4. limit mechanism; 41. limit groove; 42. telescopic push rod; 43. buffer spring; 44. limit block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 As shown, the utility model is an automatic buffer opening and closing door hinge for a car cargo box door, comprising a limit plate 1, a circular hole 12 is provided on the upper surface of the limit plate 1, a rotating groove 14 is provided inside the limit plate 1, a rotating ring 15 is fixedly connected to the lower surface of the rotating groove 14, and a hinge 13 is rotatably connected to the inner wall of the rotating ring 15.

[0026] The inner wall of the rotating groove 14 is provided with a connecting mechanism 2, which includes a fixing groove 21 opened at the bottom of the inner wall of the rotating groove 14, a fixing column 22 is fixedly connected to the bottom of the inner wall of the fixing groove 21, and a fixing block 23 is fixedly connected to the upper surface of the fixing column 22.

[0027] A telescopic rod 24 is fixedly connected to the upper surface of the fixed block 23 , a blocking block 25 is fixedly connected to the upper surface of the telescopic rod 24 , a spring 26 is fixedly connected to the upper surface of the blocking block 25 , and a connecting block 27 is fixedly connected to the upper end of the spring 26 .

[0028] A limiting mechanism 4 is provided on the lower surface of the hinge 13, and the limiting mechanism 4 includes an extension groove opened on the lower surface of the hinge 13, and limiting grooves 41 are opened on the left and right sides of the inner wall of the extension groove. A telescopic push rod 42 is fixedly connected to the inner wall of the limiting groove 41, and a buffer spring 43 is fixedly connected to the surface of the telescopic push rod 42.

[0029] One end of the telescopic push rod 42 away from the extension slot is fixedly connected to the limiting block 44 , and one end of the buffer spring 43 away from the extension slot is fixedly connected to the surface of the limiting block 44 .

[0030] A buffer mechanism 3 is provided on the inner wall of the rotating groove 14, and the buffer mechanism 3 includes an extension plate 31 fixedly connected to the inner wall of the rotating groove 14, a square plate 32 is fixedly connected to the inner wall surface of the extension plate 31, a spring rod 33 is fixedly connected to the surface of the square plate 32, and a baffle 34 is fixedly connected to the surface of the hinge 13.

[0031] There are two telescopic push rods 42, which are symmetrically arranged with the extension slot as the center. There are two buffer springs 43, which are symmetrically arranged with the extension slot as the center. There are two limit blocks 44, which are symmetrically arranged with the extension slot as the center.

[0032] When the door is opened, the hinge 13 will drive the baffle plate 34 to rotate, and during the rotation process, it will contact the spring rod 33, thereby buffering the impact force of opening the door, thereby extending the service life of the device, and when closing the door, the baffle plate 34 will also contact another spring rod 33, thereby buffering the impact force of closing the door, and the spring rod 33 needs to be squeezed before the door can be closed. This arrangement extends the service life of the device and can reduce the generation of noise when closing the door. Then, if the hinge 13 is damaged and needs to be replaced, it is only necessary to press down the hinge 13 to make the telescopic rod 24 telescope, so that the fixed block 23 moves upward, thereby contacting the inclined surfaces of the two limit blocks 44, so that the two limit blocks 44 are squeezed and then contracted through the buffer spring 43. , so that the fixed block 23 can pass through the obstruction of the limit block 44, and then the rebound force of the spring 26 after being squeezed pushes the fixed block 23, the blocking block 25 and the connecting block 27 downward, so that the fixed block 23 squeezes the limit block 44 again, so that the blocking block 25 and the connecting block 27 pass through the limit block 44, thereby separating the damaged hinge 13 from the limit plate 1, and then aligning the new hinge 13 with the circular hole 12, and then pressing down, so that the connecting block 27 and the blocking block 25 squeeze the limit block 44, so that the upper surface of the connecting block 27 contacts the top of the inner wall of the extension groove, and the lower surface of the blocking block 25 contacts the upper surface of the limit block 44, thereby clamping the hinge 13 with the limit plate 1. This arrangement solves the problem of difficulty in replacing the device after it is damaged.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic buffering door hinge for a vehicle cargo box door, comprising a limit plate (1), characterized in that: A circular hole (12) is provided on the upper surface of the limiting plate (1), a rotating groove (14) is provided inside the limiting plate (1), a rotating ring (15) is fixedly connected to the lower surface of the rotating groove (14), and a hinge (13) is rotatably connected to the inner wall of the rotating ring (15).

2. The automatic buffer opening and closing door hinge for a vehicle cargo box door according to claim 1, characterized in that: The inner wall of the rotating groove (14) is provided with a connecting mechanism (2), the connecting mechanism (2) comprising a fixing groove (21) opened at the bottom of the inner wall of the rotating groove (14), a fixing column (22) fixedly connected to the bottom of the inner wall of the fixing groove (21), and a fixing block (23) fixedly connected to the upper surface of the fixing column (22).

3. The automatic buffering door hinge for a vehicle cargo box door according to claim 2, characterized in that: The upper surface of the fixed block (23) is fixedly connected to a telescopic rod (24), the upper surface of the telescopic rod (24) is fixedly connected to a blocking block (25), the upper surface of the blocking block (25) is fixedly connected to a spring (26), and the upper end of the spring (26) is fixedly connected to a connecting block (27).

4. The automatic buffer opening and closing door hinge for a vehicle cargo box door according to claim 1, characterized in that: A limiting mechanism (4) is arranged on the lower surface of the hinge (13), and the limiting mechanism (4) comprises an extension groove formed on the lower surface of the hinge (13), and limiting grooves (41) are formed on the left and right sides of the inner wall of the extension groove, and a telescopic push rod (42) is fixedly connected to the inner wall of the limiting groove (41), and a buffer spring (43) is fixedly connected to the surface of the telescopic push rod (42).

5. The automatic buffer opening and closing door hinge for a vehicle cargo box door according to claim 4, characterized in that: One end of the telescopic push rod (42) away from the extension slot is fixedly connected to a limiting block (44), and one end of the buffer spring (43) away from the extension slot is fixedly connected to the surface of the limiting block (44).

6. The automatic buffer opening and closing door hinge for a vehicle cargo box door according to claim 1, characterized in that: The inner wall of the rotating groove (14) is provided with a buffer mechanism (3), and the buffer mechanism (3) comprises an extension plate (31) fixedly connected to the inner wall of the rotating groove (14), a square plate (32) fixedly connected to the inner wall surface of the extension plate (31), a spring rod (33) fixedly connected to the surface of the square plate (32), and a baffle (34) fixedly connected to the surface of the hinge (13).

7. The automatic buffer opening and closing door hinge for a vehicle cargo box door according to claim 5, characterized in that: The number of the telescopic push rods (42) is two, and the two telescopic push rods (42) are symmetrically arranged with the extension slot as the center. The number of the buffer springs (43) is two, and the two buffer springs (43) are symmetrically arranged with the extension slot as the center. The number of the limit blocks (44) is two, and the two limit blocks (44) are symmetrically arranged with the extension slot as the center.

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