Locking mechanism for oil truck door handle

Abstract

The utility model relates to the technical field of fuel trucks, and provides a fuel truck door handle locking mechanism which comprises a hollow plate, a lock bin is fixedly arranged on one side of the hollow plate, a cavity is formed in the surface of the hollow plate, a driving assembly is arranged in the hollow plate, and the driving assembly comprises a first rotating shaft, a grip and a second rotating shaft. The first rotating shaft is rotatably connected to the interior of the cavity through a bearing, a grip is fixedly arranged on the surface of the first rotating shaft, the second rotating shaft is rotatably connected to the interior of the lock bin through a bearing, and a locking assembly is arranged in the lock bin and comprises two auxiliary shafts and two rotating wheels; the two auxiliary shafts are rotationally connected to the two sides of the interior of the lock bin through bearings correspondingly. The door handle locking mechanism is few in parts, easy and convenient to operate and extremely low in requirements for manufacturing precision and assembly, and meanwhile the cost of the door handle locking structure can be greatly reduced. By means of the technical scheme, the problems that in the prior art, a traditional door handle locking mechanism is too many in part and potential fault points are too many are solved.

Description

Technical Field

[0001] This utility model relates to the field of oil tanker technology, specifically to an oil tanker door handle locking mechanism. Background Technology

[0002] The door handle locking mechanism is a device designed to make automobiles more convenient and safer to use. It is installed on the door and its pillar to reliably lock the door and uses its internal mechanism to achieve opening and locking functions. It is a very important vehicle accessory with a safety protection function.

[0003] In existing technologies, traditional oil tanker door handle locking mechanisms often consist of dozens or even hundreds of precision stamped parts, springs, levers, etc., to control the rotation of the pawl, which then closes with the locking hook to lock the handle and allow the oil tanker door to open and close. However, with so many parts, there are more potential points of failure, and the requirements for manufacturing precision and assembly are extremely high, resulting in excessively high production and maintenance costs for oil tanker door handle locking structures. Therefore, this utility model proposes an oil tanker door handle locking mechanism. Utility Model Content

[0004] This utility model proposes a door handle locking mechanism for oil tankers, which solves the problem that traditional door handle locking mechanisms in related technologies have too many parts and many potential failure points.

[0005] The technical solution of this utility model is as follows: A door handle locking mechanism for a fuel truck includes a hollow plate, a lock chamber fixedly provided on one side of the hollow plate, a cavity opened on the surface of the hollow plate, and a driving assembly provided inside the hollow plate. The driving assembly includes a first rotating shaft, a handle, and a second rotating shaft. The first rotating shaft is rotatably connected to the inside of the cavity through a bearing, and a handle is fixedly provided on the surface of the first rotating shaft. The second rotating shaft is rotatably connected to the inside of the lock chamber through a bearing. A locking assembly is provided inside the lock chamber. The locking assembly includes two auxiliary shafts and two rotating wheels. The two auxiliary shafts are rotatably connected to both sides inside the lock chamber through bearings, and rotating wheels are fixedly provided on the surfaces of the two auxiliary shafts.

[0006] Preferably, the drive assembly further includes two first drive wheels and a first belt. The two first drive wheels are respectively fixedly disposed on one side of the first rotating shaft and one side of the second rotating shaft, and the two first drive wheels are connected by a first belt.

[0007] Preferably, the locking assembly further includes a hinge plate, a guide rod, a fixed plate, a movable plate, a return spring, and a limiting plate. The hinge plate is hinged to one side inside the lock chamber. A guide rod is fixedly provided on one side of the hinge plate. A fixed plate is fixedly provided on the surface of the guide rod. A movable plate is slidably connected to the surface of the guide rod. A return spring is fixedly provided between the movable plate and the fixed plate. A limiting plate is fixedly provided at one end of the guide rod.

[0008] Preferably, a third rotating shaft is rotatably connected to the bottom of the hollow plate via a bearing. A second transmission wheel is fixedly provided on the surface of the third rotating shaft and the other side of the second rotating shaft. A second belt is connected between the two second transmission wheels.

[0009] Preferably, a disc is fixedly provided at one end of the third rotating shaft, and a protruding rod is fixedly provided on the surface of the disc.

[0010] Preferably, the surfaces of both rotating wheels are provided with arc-shaped grooves, and several grooves are fixedly provided at the bottom of one side of each of the two rotating wheels. A baffle is fixedly provided at one end of each of the two auxiliary shafts, and a torsion spring is fixedly provided between the baffle and the rotating wheel on each side.

[0011] Preferably, the surface of the lock cylinder is provided with a movable groove, which matches the protrusion.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, a combination of a rotating wheel, an arc-shaped groove, a return spring, a movable plate, an arc-shaped groove, a disc, and a convex rod creates a mechanism that works together to close the vehicle as the door rotates. When the entire mechanism closes, the movable plate and the locking hook engage between two arc-shaped grooves to lock the two rotating wheels. Rotating the handle causes the convex rod to move the movable plate, thus unlocking the two rotating wheels. This locking mechanism allows control of the vehicle's opening and closing. Compared to traditional door handle locking mechanisms, this mechanism eliminates the need to adjust the steel wire structure to open the door lock. It has fewer parts, is easy to operate, and has very low requirements for manufacturing precision and assembly. It also significantly reduces the cost of door handle locking structures. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a perspective view of the entire utility model;

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

[0017] Figure 3 This is a cross-sectional structural diagram of the lock cylinder of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rotary wheel of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the grip of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the movable plate of this utility model.

[0021] In the diagram: 1. Hollow plate; 2. Locking chamber; 3. Cavity; 4. Drive assembly; 5. Locking assembly; 6. Third rotating shaft; 7. Second transmission wheel; 8. Second belt; 9. Disc; 10. Protruding rod; 11. Arc groove; 12. Groove; 13. Baffle plate; 14. Torsion spring; 15. Movable groove; 41. First rotating shaft; 42. Handle; 43. Second rotating shaft; 44. First transmission wheel; 45. First belt; 51. Auxiliary shaft; 52. Rotating wheel; 53. Hinge plate; 54. Guide rod; 55. Fixed plate; 56. Movable plate; 57. Return spring; 58. Limiting plate. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1

[0024] like Figures 1-6 As shown, this embodiment proposes a door handle locking mechanism for a fuel truck, including a hollow plate 1. A lock chamber 2 is fixedly provided on one side of the hollow plate 1. A cavity 3 is opened on the surface of the hollow plate 1. A drive assembly 4 is provided inside the hollow plate 1. The drive assembly 4 includes a first rotating shaft 41, a handle 42, and a second rotating shaft 43. The first rotating shaft 41 is rotatably connected to the inside of the cavity 3 through a bearing. The handle 42 is fixedly provided on the surface of the first rotating shaft 41. The second rotating shaft 43 is rotatably connected to the inside of the lock chamber 2 through a bearing. A locking assembly 5 is provided inside the lock chamber 2. The locking assembly 5 includes two auxiliary shafts 51 and two rotating wheels 52. The two auxiliary shafts 51 are rotatably connected to both sides inside the lock chamber 2 through bearings. The rotating wheels 52 are fixedly provided on the surface of both auxiliary shafts 51.

[0025] The drive assembly 4 also includes two first drive wheels 44 and a first belt 45. The two first drive wheels 44 are respectively fixedly disposed on one side of the first rotating shaft 41 and one side of the second rotating shaft 43, and the two first drive wheels 44 are connected by the first belt 45.

[0026] The bottom of the hollow plate 1 is rotatably connected to a third rotating shaft 6 via a bearing. The surface of the third rotating shaft 6 and the other side of the second rotating shaft 43 are both fixed with a second transmission wheel 7. A second belt 8 is connected between the two second transmission wheels 7.

[0027] In this embodiment, when the door is opened by rotating one side of the handle 42, the handle 42 rotates and drives the first shaft 41 to rotate. At the same time, the first belt 45 can drive between the two first transmission wheels 44. After the first belt 45 drives, the second belt 8 can drive between the two second transmission wheels 7, thereby enabling the first shaft 41, the second shaft 43 and the third shaft 6 to operate synchronously.

[0028] Example 2

[0029] like Figures 1-6 As shown, based on the same concept as the above embodiments, this embodiment also proposes a locking component 5. The locking component 5 further includes a hinge plate 53, a guide rod 54, a fixed plate 55, a movable plate 56, a return spring 57, and a limiting piece 58. The hinge plate 53 is hinged to one side inside the lock chamber 2. A guide rod 54 is fixedly provided on one side of the hinge plate 53. A fixed plate 55 is fixedly provided on the surface of the guide rod 54. A movable plate 56 is slidably connected to the surface of the guide rod 54. A return spring 57 is fixedly provided between the movable plate 56 and the fixed plate 55. A limiting piece 58 is fixedly provided at one end of the guide rod 54.

[0030] Both rotating wheels 52 have arc-shaped grooves 11 on their surfaces. Several grooves 12 are fixedly provided on the bottom of one side of both rotating wheels 52. A baffle 13 is fixedly provided at one end of both auxiliary shafts 51. A torsion spring 14 is fixedly provided between the baffle 13 on each side and the rotating wheel 52.

[0031] One end of the third rotating shaft 6 is fixedly provided with a disc 9, and a protruding rod 10 is fixedly provided on the surface of the disc 9;

[0032] The surface of the lock cylinder 2 is provided with a movable groove 15, which matches the protrusion 10.

[0033] In this embodiment, the rotation of the disc 9 causes the protruding rod 10 to rotate at an appropriate angle. When the protruding rod 10 rotates to contact the bottom of the movable plate 56, one end of the protruding rod 10 continues to rotate, applying pressure to the movable plate 56. At this time, the hinge plate 53 can tilt at an appropriate angle, and the movable plate 56 slides along the guide rod 54 toward the fixed plate 55 until it is pulled out from between the two arc-shaped grooves 11. At the same time, the return spring 57 contracts and then returns to its original position. Since the movable plate 56 no longer engages with the two arc-shaped grooves 11, the two rotating wheels 52 are no longer limited and can rotate freely. Furthermore, the two torsion springs 14 can be used to make the two wheels rotate freely. The rotating wheel 52 rotates at an appropriate angle, preventing the movable plate 56 from sliding into the inner wall of the two arc-shaped grooves 11. The movable plate 56 can also be limited by the two grooves 12. When the mechanism is locked, the door and the mechanism rotate toward the vehicle body. The locking hook on the side of the vehicle body can drive the two rotating wheels 52 in the mechanism to rotate. After the two rotating wheels 52 rotate at an appropriate angle, the two arc-shaped grooves 11 are fitted onto the outer surface of the locking hook. Then, the reset spring 57 resets the movable plate 56 to slide into the two arc-shaped grooves 11 at the same time. Thus, the two rotating wheels 52 can no longer rotate through the cooperation of the locking hook and the movable plate 56.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A door handle locking mechanism for an oil tanker, comprising a hollow plate (1), characterized in that: A lock chamber (2) is fixedly provided on one side of the hollow plate (1). A cavity (3) is opened on the surface of the hollow plate (1). A drive assembly (4) is provided inside the hollow plate (1). The drive assembly (4) includes a first rotating shaft (41), a handle (42), and a second rotating shaft (43). The first rotating shaft (41) is rotatably connected to the inside of the cavity (3) through a bearing. A handle (42) is fixedly provided on the surface of the first rotating shaft (41). The second rotating shaft (43) is rotatably connected to the inside of the lock chamber (2) through a bearing. A locking assembly (5) is provided inside the lock chamber (2). The locking assembly (5) includes two auxiliary shafts (51) and two rotating wheels (52). The two auxiliary shafts (51) are rotatably connected to both sides inside the lock chamber (2) through bearings. The rotating wheels (52) are fixedly provided on the surface of the two auxiliary shafts (51).

2. The oil tanker door handle locking mechanism according to claim 1, characterized in that: The drive assembly (4) further includes two first drive wheels (44) and a first belt (45). The two first drive wheels (44) are respectively fixed on one side of the first rotating shaft (41) and one side of the second rotating shaft (43), and the two first drive wheels (44) are connected by a first belt (45).

3. The oil tanker door handle locking mechanism according to claim 1, characterized in that: The locking assembly (5) further includes a hinge plate (53), a guide rod (54), a fixed plate (55), a movable plate (56), a return spring (57), and a limiting piece (58). The hinge plate (53) is hinged to one side inside the lock chamber (2). A guide rod (54) is fixedly provided on one side of the hinge plate (53). A fixed plate (55) is fixedly provided on the surface of the guide rod (54). A movable plate (56) is slidably connected to the surface of the guide rod (54). A return spring (57) is fixedly provided between the movable plate (56) and the fixed plate (55). A limiting piece (58) is fixedly provided at one end of the guide rod (54).

4. The oil tanker door handle locking mechanism according to claim 2, characterized in that: The bottom of the hollow plate (1) is rotatably connected to a third rotating shaft (6) via a bearing. The surface of the third rotating shaft (6) and the other side of the second rotating shaft (43) are both fixed with a second transmission wheel (7). A second belt (8) is connected between the two second transmission wheels (7).

5. The oil tanker door handle locking mechanism according to claim 4, characterized in that: One end of the third rotating shaft (6) is fixedly provided with a disc (9), and a protrusion (10) is fixedly provided on the surface of the disc (9).

6. The oil tanker door handle locking mechanism according to claim 3, characterized in that: Both of the two rotating wheels (52) have arc-shaped grooves (11) on their surfaces. Several grooves (12) are fixedly provided on the bottom of one side of both of the two rotating wheels (52). A baffle (13) is fixedly provided at one end of each of the two auxiliary shafts (51). A torsion spring (14) is fixedly provided between the baffle (13) on each side and the rotating wheel (52).

7. The oil tanker door handle locking mechanism according to claim 5, characterized in that: The surface of the lock cylinder (2) is provided with a movable groove (15), which is matched with the protrusion (10).

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