Traction rod mechanism of aircraft refueling vehicle

Abstract

The utility model belongs to the technical field of refueling truck traction mechanisms, and particularly relates to an airplane refueling truck traction rod mechanism which comprises a traction rod a and a traction rod b which are connected through a connecting mechanism. According to the traction rod mechanism of the aircraft refueling vehicle, the connecting mechanism achieves the folding function of the traction rod a and the traction rod b through the synergistic effect of the connecting plate, the rotating sleeve, the plug pin and other components, the occupied space of a traction device can be reduced when the traction device is not used, and the plug pin is matched with a limiting groove and a through groove when the traction rod is unfolded for use and folded for storage; the traction rod can be limited and fixed, the stability during traction operation and the structural stability in the storage state are guaranteed, meanwhile, the traction connector is designed to be of a modular structure, adaptive modules can be rapidly replaced according to different types of tractors and aircraft refueling vehicles, the traction rod does not need to be wholly replaced, and the operation is convenient. And the universality and the flexibility of the traction rod mechanism are greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of refueling truck towing mechanisms, specifically a towing rod mechanism for an aircraft refueling truck. Background Technology

[0002] Aircraft refueling trucks are special equipment vehicles used for refueling aviation fuel. They mainly include tank refueling trucks and pipeline refueling trucks. When an aircraft refueling truck malfunctions on the tarmac and cannot start, in order not to affect the normal pushback of the aircraft, it is necessary to immediately use a towing vehicle to tow the aircraft refueling truck to a specific location for repair.

[0003] Currently, most existing tow bar devices do not have a folding function. When idle or moving in the confined space of an airport, their large size occupies a lot of space, which is not only inconvenient for storage, but also increases the difficulty of moving in complex environments. Especially in the space-constrained environment of an airport, the inability to flexibly adjust the shape of the tow bar can easily lead to waste of space resources and low operational efficiency. In view of this, we propose a tow bar mechanism for aircraft refueling trucks. Utility Model Content

[0004] The main objective of this invention is to provide a tow bar mechanism for aircraft refueling trucks that can solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model proposes an aircraft refueling truck towing rod mechanism, comprising a towing rod a and a towing rod b, wherein the towing rod a and the towing rod b are connected by a connecting mechanism, the connecting mechanism comprising:

[0006] A connecting plate, wherein a limiting groove is provided;

[0007] A fixing plate is welded to the outer wall of the ends of traction rod a and traction rod b respectively. The fixing plate has through grooves, and there are two sets of through grooves with an included angle of 90 degrees between the two sets of through grooves.

[0008] The sleeve has an internal thread, and the sleeve is penetrated by a threaded rod and threadedly connected to the threaded rod.

[0009] Preferably, a fixing block is fixedly connected to the outer wall of the connecting plate, the fixing block is penetrated by the rotating sleeve and rotatably connected to the rotating sleeve, and the rotating sleeve has an inner groove.

[0010] Preferably, the rotating sleeve is provided with a pin, and a protrusion is fixedly connected to the outer wall of the pin, and the protrusion is slidably connected to the inner groove.

[0011] Preferably, the fixing block has a sliding groove, and a limit rod is slidably connected to the sliding groove. The limit rod is slidably connected to the sliding groove to limit the pin and prevent the pin from rotating synchronously with the rotating sleeve.

[0012] Preferably, the rotating sleeve passes through the fixed sleeve and is fixedly connected to the fixed sleeve, and a handle is fixedly connected to the outer wall of the fixed sleeve.

[0013] Preferably, both the traction rod a and the traction rod b are fixedly connected to the outer walls with handles, the traction rod a is provided with rollers, and the traction rod b is provided with a lifting mechanism.

[0014] Preferably, bolts are welded to the outer wall of the end of the traction rod a and traction rod b away from the fixed plate, and traction connectors are inserted into the bolts. The traction connectors are fixedly connected to traction rod a and traction rod b by bolts and nuts.

[0015] This utility model provides a towing boom mechanism for an aircraft refueling truck. It has the following beneficial effects:

[0016] (1) The aircraft refueling truck towing rod mechanism, the connecting mechanism realizes the folding function of towing rod a and towing rod b through the coordinated action of connecting plate, rotating sleeve, pin and other components, so that the towing device can reduce the space occupied when not in use, making it easy to park and move in the narrow area of ​​the airport, effectively improving the space utilization rate. In addition, in both the unfolded and folded storage states of the towing rod, the pin cooperates with the limiting groove and through groove to limit and fix the towing rod, ensuring the stability during towing operation and the structural stability in the storage state.

[0017] (2) The aircraft refueling truck towing rod mechanism features a modular design for the towing joint, allowing for quick replacement of compatible modules for different models of towing trucks and aircraft refueling trucks without requiring a complete replacement of the towing rod. This significantly improves the versatility and flexibility of the towing rod mechanism. Furthermore, the modular design facilitates component maintenance and replacement. When a module malfunctions, it can be disassembled and repaired or replaced individually, effectively reducing maintenance and time costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the unfolded structure of the traction rod of this utility model;

[0020] Figure 2 This is a schematic diagram of the traction rod storage structure of this utility model;

[0021] Figure 3This is a partial three-dimensional structural diagram of the present utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the connecting plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the sleeve of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the fixing plate of this utility model;

[0025] Figure 7 This is a schematic diagram of the internal structure of the rotating sleeve of this utility model;

[0026] Figure 8 This is a schematic diagram of the three-dimensional cross-sectional structure of the rotating sleeve of this utility model;

[0027] Figure 9 This utility model Figure 1 Schematic diagram of structure A in the middle.

[0028] Explanation of icon numbers:

[0029] 1. Traction joint; 2. Roller; 3. Handle; 4. Lifting mechanism; 5. Connecting mechanism; 51. Connecting plate; 510. Limiting groove; 511. Fixing block; 512. Rotating sleeve; 513. Inner groove; 514. Pin; 515. Protrusion; 516. Limiting rod; 517. Handle; 518. Slide groove; 52. Sleeve body; 521. Threaded rod; 53. Fixing plate; 531. Through groove; 6. Bolt.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-9This utility model proposes a towing rod mechanism for an aircraft refueling truck, including a towing rod a and a towing rod b. Handles 3 are fixedly connected to the outer walls of both towing rod a and towing rod b. Towing rod a is equipped with rollers 2, and towing rod b is equipped with a lifting mechanism 4. Bolts 6 are welded to the outer walls of the ends of towing rods a and b away from the fixed plate 53. A towing connector 1 is inserted into the bolts 6. The towing connector 1 is fixedly connected to towing rods a and b via bolts 6 and nuts. By designing the towing connector 1 as a modular structure, suitable modules can be quickly replaced according to different models of towing trucks and aircraft refueling trucks, eliminating the need to replace the entire towing rod. Simultaneously, the modular design facilitates component repair and replacement, reducing maintenance costs. Towing rod a and towing rod b are connected via a connecting mechanism 5.

[0033] In an embodiment of this utility model, in order to connect the traction rod a and the traction rod b, the connecting mechanism 5 specifically includes a connecting plate 51, the connecting plate 51 having a limiting groove 510, a fixing plate 53 being welded to the outer wall of the ends of the traction rod a and the traction rod b respectively, the fixing plate 53 having a through groove 531, the through groove 531 having two sets and the included angle between the two sets of through grooves 531 being ninety degrees, the sleeve 52 having an internal thread, the sleeve 52 being penetrated by the threaded rod 521 and threadedly connected to the threaded rod 521;

[0034] Furthermore, a fixing block 511 is fixedly connected to the outer wall of the connecting plate 51. The fixing block 511 is penetrated by the rotating sleeve 512 and rotatably connected to the rotating sleeve 512. The rotating sleeve 512 has an inner groove 513 and a pin 514 inside the rotating sleeve 512. A protrusion 515 is fixedly connected to the outer wall of the pin 514. The protrusion 515 is slidably connected to the inner groove 513. The fixing block 511 has a sliding groove 518. A limit rod 516 is slidably connected to the sliding groove 518. The limit rod 516 is slidably connected to the sliding groove 518 to limit the pin 514 and prevent the pin 514 from rotating synchronously with the rotating sleeve 512. The rotating sleeve 512 penetrates the fixing sleeve and is fixedly connected to the fixing sleeve. A handle 517 is fixedly connected to the outer wall of the fixing sleeve.

[0035] In this utility model, when in use, first crank the hydraulic handle to adjust the height of the lifting mechanism 4 of the towing rod, so that the towing joint 1 is aligned with the towing vehicle joint, and then fix it with the pin. Then crank the handle to raise the lifting mechanism 4 to the ground height of the pin of the aircraft refueling truck. Then align the other end of the towing joint 1 with the aircraft refueling truck joint, and then fix it with the pin. After the towing vehicle completes towing, wait for the aircraft refueling truck to come to a complete stop, crank the hydraulic handle to adjust the appropriate height, disconnect the connection between the towing rod and the towing vehicle, and then pull out the positioning pin to make the towing rod exit the towing point of the towing vehicle. Then adjust the height to disconnect the connection between the towing rod and the aircraft refueling truck, pull out the positioning pin to make the towing rod exit the towing point of the aircraft refueling truck. This lifting mechanism 4 is prior art, so its working principle will not be described in the specification.

[0036] When the traction device needs to be positioned, first rotate the handle 517 90 degrees. At this time, the rotating sleeve 512, which is fixedly connected to the handle 517, will rotate synchronously with the handle 517. During this process, the inner groove 513 of the rotating sleeve 512 will squeeze the protrusion 515, causing the protrusion 515 to drive the pin 514 to move upward synchronously, so that the pin 514 disengages from the limiting groove 510 and the through groove 531, thereby releasing the limiting of traction rod a and traction rod b. Then, pull the traction rod a to the position using the handle 3. Figure 2 At the position shown, the pin 514 will overlap with another set of through slots 531. Then, turn the handle 517 ninety degrees in the opposite direction. At this time, the inner groove 513 will apply force to the protrusion 515 again, so that the pin 514 will be inserted into the through slot 531 and the limiting groove 510 again, thereby limiting the towing rod a and the towing rod b again. Through the design of the connecting mechanism 5, the towing device can fold the towing rod a and the towing rod b, so as to facilitate the parking and movement of the towing device in the narrow area of ​​the airport. At the same time, through the design of the pin 514, the rotating sleeve 512, etc., the towing rod a and the towing rod b in two states can be limited and fixed, thereby ensuring the stability during towing operation and the structural stability in the storage state.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An aircraft fuel truck towbar mechanism comprising a towbar a and a towbar b, characterised in that: The traction rod a and the traction rod b are connected through a connecting mechanism (5), the connecting mechanism (5) comprises: The connecting plate (51) is provided with a limiting groove (510); The fixed plate (53) is welded with the outer wall of the end of the traction rod a and the traction rod b respectively, and the fixed plate (53) is provided with a through groove (531), the through groove (531) is provided with two groups, and the included angle between the two groups of through grooves (531) is ninety degrees; The sleeve body (52) is provided with an internal thread, the sleeve body (52) is penetrated by a threaded rod (521) and is threadedly connected with the threaded rod (521).

2. An aircraft fuel truck drawbar mechanism as claimed in claim 1, characterised in that: The outer wall of the connecting plate (51) is fixedly connected with a fixed block (511), the fixed block (511) is penetrated by a rotating sleeve (512) and is rotatably connected with the rotating sleeve (512), and the rotating sleeve (512) is provided with an inner groove (513).

3. An aircraft fuelling vehicle towbar mechanism according to claim 2, wherein: The rotating sleeve (512) is provided with a latch (514), the outer wall of the latch (514) is fixedly connected with a convex block (515), and the convex block (515) is slidably connected with the inner groove (513).

4. An aircraft fuelling vehicle towbar mechanism according to claim 3, wherein: The fixed block (511) is provided with a sliding groove (518), the sliding groove (518) is slidably connected with a limiting rod (516), and the limiting rod (516) is slidably connected with the sliding groove (518) for limiting the latch (514) to prevent the latch (514) from rotating synchronously with the rotating sleeve (512).

5. An aircraft fueler towbar mechanism according to claim 2, wherein: The rotating sleeve (512) penetrates a fixed sleeve and is fixedly connected with the fixed sleeve, and the outer wall of the fixed sleeve is fixedly connected with a handle (517).

6. An aircraft fueler towbar mechanism as claimed in claim 1, characterised in that: The outer wall of the traction rod a and the traction rod b is fixedly connected with a handle (3), the traction rod a is provided with a roller (2), and the traction rod b is provided with a lifting mechanism (4).

7. An aircraft fueler towbar mechanism as claimed in claim 1, characterised in that: The outer wall of the end of the traction rod a and the traction rod b away from the fixed plate (53) is welded with a bolt (6), the bolt (6) is inserted with a traction joint (1), and the traction joint (1) is fixedly connected with the traction rod a and the traction rod b through the bolt (6) and a nut.

Images