Aircraft draw bar convenient for rapid pin disengaging

Abstract

The utility model provides an airplane traction rod convenient for quick pin disengaging. A traction hook used for being connected with a tractor is fixedly mounted at one end of the head of a traction rod body; a wheel supporting box body is installed in the middle of the traction rod body through a wheel fixing hoop and a pin shaft, and wheels are installed at the bottom end of the wheel supporting box body through a wheel carrier. A towing hook connecting seat is fixedly mounted at one end of the tail part of the traction rod body, and a towing hook framework is mounted on the towing hook connecting seat; hook arms are installed at the two ends of the towing hook framework through connecting plates, and quick plug pin structures used for being matched with aircraft landing gear holes are installed at the ends of the hook arms. The airplane traction rod is connected with the connecting end of an airplane through a quick plug pin structure, operation is convenient and fast in the connecting process, reliable locking can be conducted after connection, the falling risk of the airplane traction rod is effectively prevented, and then the safety of the traction operation process is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft traction devices, and in particular relates to an aircraft traction rod which is convenient for rapid release. Background Art

[0002] Existing aircraft towing rods mainly adopt an integrated structure. The connecting end of the towing rod and the aircraft is mainly connected by a detachable pin. During use, this connection structure is inconvenient to operate and has low connection efficiency. Moreover, the detachable pin structure is used, and there is a risk that the pin may fall off during the subsequent specific towing and traction process. Utility Model Content

[0003] The utility model aims to provide an aircraft towing rod which is easy to quickly release. The aircraft towing rod is connected to the connecting end of the aircraft by a quick latch structure. The operation is convenient during the connection process and the towing rod can be reliably locked after the connection, thereby effectively preventing the risk of falling off and ensuring the safety of the towing operation process.

[0004] In order to realize the above-mentioned technical features, the purpose of the utility model is achieved as follows: an aircraft towing rod that is easy to quickly release the pin, including a towing rod body, a towing hook for connecting to a towing vehicle is fixedly installed at one end of the head of the towing rod body; a wheel support box is installed at the middle part of the towing rod body through a wheel fixing hoop and a pin shaft, and a wheel is installed at the bottom end of the wheel support box through a wheel frame; a towing hook connecting seat is fixedly installed at one end of the tail of the towing rod body, and a towing hook skeleton is installed on the towing hook connecting seat; hook arms are installed at both ends of the towing hook skeleton through connecting plates, and the ends of the hook arms are installed with quick latch structures for matching with the holes of the aircraft landing gear.

[0005] The traction hook is positioned and installed inside the connecting sleeve through a plurality of first latches, and the connecting sleeve is positioned and installed on one end of the head of the traction rod body through a head clamp.

[0006] Handles are symmetrically arranged on both sides of the top of the head clamp, and a support column is arranged at the bottom end of the head clamp.

[0007] The towing hook connecting seat is fixedly mounted on one end of the tail of the towing rod body through a tail clamp.

[0008] A box opening is arranged on the side of the wheel support box, and a box door is installed at the box opening.

[0009] The hook arm is hinged to the connecting plate by a hinge bolt, and the hook arm is locked by a first locking pin after being unfolded, and maintains a vertical unfolded state;

[0010] A first latch hole is processed on the connecting plate, and the first latch hole matches with a second latch hole processed on the hook arm; and the hook arm is locked by the second locking pin shaft after being locked, and keeps the folded state.

[0011] A plurality of third latch holes are processed on the towing hook frame, and the third latch holes are hingedly connected to the towing hook connecting seat through latches.

[0012] The quick latch structure includes a latch sleeve fixed to the end of the hook arm, a quick latch is slidably mounted inside the latch sleeve, a rotating handle is provided at the end of the quick latch, a positioning column is installed on the outer wall of the quick latch, the positioning column cooperates with a U-shaped limiting groove provided on the latch sleeve, and a spring is provided outside the quick latch and between the rotating handle and the latch sleeve.

[0013] A detachable clamp is installed on the traction rod body.

[0014] The utility model has the following beneficial effects:

[0015] 1. The aircraft towing rod of the utility model is connected to the connecting end of the aircraft by a quick latch structure, which is easy to operate during the connection process and can be reliably locked after the connection, effectively preventing the risk of falling off, thereby ensuring the safety of the towing operation process.

[0016] 2. The utility model can adjust the position of the towing hook to a certain extent through the above-mentioned installation structure, thereby facilitating the docking of the towing hook with the towing vehicle during subsequent use.

[0017] 3. The handle can be used to manually drag and fine-tune the entire aircraft traction rod during subsequent use. The support column can support the head of the traction rod body.

[0018] 4. The above-mentioned tail clamp can be used to quickly fix and install the towing hook connecting seat.

[0019] 5. The wheel support box is convenient for storing installation tools, and the wheel support box can be opened and closed through the box door to facilitate picking up tools.

[0020] 6. The quick latch structure can be conveniently used to quickly connect the quick latch to the pin hole of the aircraft landing gear, thereby improving the efficiency of the latch connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional diagram of the utility model from the first perspective.

[0023] Figure 2 This is a three-dimensional diagram from the second viewing angle of the present invention.

[0024] Figure 3 This is a three-dimensional diagram of the utility model from the third viewing angle.

[0025] Figure 4 This is a three-dimensional diagram from the fourth viewing angle of the present invention.

[0026] Figure 5 It is a three-dimensional diagram of the installation structure of the upper component of the tow hook skeleton of the utility model.

[0027] Figure 6 This is a three-dimensional diagram of the installation structure of the upper component of the hook arm of the utility model.

[0028] Figure 7 It is a three-dimensional diagram of the quick latch structure of the utility model.

[0029] In the figure: a towing hook 1, a first latch 2, a connecting sleeve 3, a head clamp 4, a support column 5, a handle 6, a towing rod body 7, a detachable clamp 8, a wheel support box 9, a wheel frame 10, a wheel 11, a wheel fixing hoop 12, a pin 13, a tail clamp 14, a towing hook connecting seat 15, a towing hook frame 16, a connecting plate 17, a first locking pin 18, a hinge bolt 19, a hook arm 20, a quick latch structure 21, a box door 22, a third latch hole 23, a positioning column 24, a first latch hole 25, a rotating handle 26, a quick latch 27, a spring 28, a latch sleeve 29, and a U-shaped limit groove 30. DETAILED DESCRIPTION

[0030] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0031] See also Figure 1-7 , an aircraft towing rod that is easy to quickly release, includes a towing rod body 7, a towing hook 1 for connecting to a towing vehicle is fixedly installed at one end of the head of the towing rod body 7; a wheel support box 9 is installed at the middle part of the towing rod body 7 through a wheel fixing hoop 12 and a pin 13, and a wheel 11 is installed at the bottom end of the wheel support box 9 through a wheel frame 10; a towing hook connecting seat 15 is fixedly installed at one end of the tail of the towing rod body 7, and a towing hook skeleton 16 is installed on the towing hook connecting seat 15; hook arms 20 are installed at both ends of the towing hook skeleton 16 through connecting plates 17, and a quick latch structure 21 for matching with the aircraft landing gear hole is installed at the end of the hook arm 20. The connecting end of this aircraft towing rod and the aircraft adopts a quick latch structure for connection, which is easy to operate during the connection process, and can be reliably locked after the connection, effectively preventing the risk of it falling off, thereby ensuring the safety of the towing operation process. During specific use, through

[0032] Furthermore, the traction hook 1 is positioned and installed inside the connecting sleeve 3 through a plurality of first latches 2, and the connecting sleeve 3 is positioned and installed at one end of the head of the traction rod body 7 through the head clamp 4. Through the above-mentioned installation structure, the position of the traction hook 1 can be adjusted to a certain extent, thereby facilitating the docking of the traction hook 1 with the tractor during subsequent use.

[0033] Furthermore, handles 6 are symmetrically arranged on both sides of the top of the head clamp 4, and a support column 5 is arranged at the bottom of the head clamp 4. The handles 6 can facilitate manual dragging and fine-tuning of the entire aircraft traction rod during subsequent use. The support column 5 can support the head of the traction rod body 7.

[0034] Furthermore, the towing hook connection seat 15 is fixedly mounted on the tail end of the towing rod body 7 through the tail clamp 14. The tail clamp 14 can be used to quickly fix and install the towing hook connection seat 15.

[0035] Furthermore, a box opening is provided on the side of the wheel support box 9, and a box door 22 is installed at the box opening. The wheel support box 9 is convenient for storing installation tools, and the box door 22 is convenient for opening and closing the wheel support box 9 to facilitate picking up tools.

[0036] Furthermore, the hook arm 20 is hinged to the connecting plate 17 by means of a hinge bolt 19, and the hook arm 20 is locked by means of a first locking pin 18 after being unfolded, and maintains a vertical unfolded state; the above-mentioned hook arm 20 facilitates folding or unfolding, and is thus convenient for connection with the landing gear of the aircraft to be towed.

[0037] Furthermore, a first latch hole 25 is formed on the connecting plate 17, and the first latch hole 25 matches with a second latch hole 32 formed on the hook arm 20; and the hook arm 20 is locked by the second locking pin after being locked, and keeps the folded state. The first latch hole 25 and the second latch hole 32 ensure that the hook arm 20 is locked after being folded.

[0038] Furthermore, the hook frame 16 is processed with a plurality of third pin holes 23, which are hingedly connected to the hook connection seat 15 through pins. The plurality of third pin holes 23 facilitate quick connection between the hook frame 16 and the hook connection seat 15.

[0039] Furthermore, the quick latch structure 21 includes a latch sleeve 29 fixed to the end of the hook arm 20, a quick latch 27 is installed in a sliding manner inside the latch sleeve 29, a rotating handle 26 is provided at the end of the quick latch 27, a positioning column 24 is installed on the outer wall of the quick latch 27, the positioning column 24 cooperates with a U-shaped limiting groove 30 provided on the latch sleeve 29, and a spring 28 is provided outside the quick latch 27 and between the rotating handle 26 and the latch sleeve 29. The quick latch structure 21 can conveniently and quickly connect the quick latch 27 to the pin hole of the aircraft landing gear, thereby improving the efficiency of the latch connection. In the specific working process, when the quick latch structure 21 needs to be connected to the aircraft landing gear, the hook arm 20 is unfolded, and then the quick latch 27 is pulled and retracted, and then the quick latch 27 is aligned with the pin shaft hole of the landing gear, and then the quick latch 27 is released. Under the action of the spring, the quick latch 27 will be inserted into the pin shaft hole, thereby achieving a quick connection. In the specific operation process, the spring will always press the quick latch 27 tightly, thereby effectively preventing the risk of it falling off.

[0040] The specific working process and principle of this utility model:

[0041] In the specific use process, first, unfold the hook arm 20, then lock the hook arm 20 in the unfolded state, then adjust the quick latch structure 21 to move to the pin hole of the aircraft landing gear, then pull the retracted quick latch 27, then align the quick latch 27 with the pin shaft hole of the landing gear, and then release the quick latch 27. Under the action of the spring, the quick latch 27 will be inserted into the pin shaft hole, thereby achieving a quick connection;

[0042] When the quick latch 27 is inserted into the landing gear hole, the rotating handle 26 on the quick latch 27 is pulled to rotate the positioning column 24 along the U-shaped limit groove 30 and snap into the positioning groove. Under the action of the spring 28, the quick latch 27 will not loosen, ensuring safety during use. This design is easy to operate, fast and safe.

[0043] Finally, the tractor is moved, the traction rod body 7 is docked with the tractor through the traction hook 1, and the aircraft is towed and moved by the tractor.

Claims

1. An aircraft towing rod that is easy to quickly remove from stock, characterized in that: The invention comprises a traction rod body (7), wherein a traction hook (1) for connecting to a tractor is fixedly mounted at one end of the head of the traction rod body (7); a wheel support box (9) is mounted at the middle part of the traction rod body (7) via a wheel fixing hoop (12) and a pin shaft (13); a wheel (11) is mounted at the bottom end of the wheel support box (9) via a wheel frame (10); a towing hook connection seat (15) is fixedly mounted at one end of the tail of the traction rod body (7), a towing hook frame (16) is mounted on the towing hook connection seat (15); hook arms (20) are mounted at both ends of the towing hook frame (16) via connecting plates (17), and a quick latch structure (21) for matching with a hole of an aircraft landing gear is mounted at the end of the hook arm (20).

2. The aircraft towing rod that is easy to quickly remove from the pin according to claim 1, characterized in that: The traction hook (1) is positioned and installed inside the connecting sleeve (3) via a plurality of first latches (2); the connecting sleeve (3) is positioned and installed at one end of the head of the traction rod body (7) via a head clamp (4).

3. The aircraft towing rod that is easy to quickly remove from the pin according to claim 2, characterized in that: Handles (6) are symmetrically arranged on both sides of the top of the head clamp (4), and a support column (5) is arranged at the bottom end of the head clamp (4).

4. The aircraft towing rod that is easy to quickly remove from the pin according to claim 1, characterized in that: The towing hook connection seat (15) is fixedly mounted on the tail end of the towing rod body (7) via a tail clamp (14).

5. The aircraft towing rod that is easy to quickly remove from the pin according to claim 1, characterized in that: A box opening is provided on the side of the wheel support box (9), and a box door (22) is installed at the box opening.

6. The aircraft towing rod that is easy to quickly remove from the pin according to claim 1, characterized in that: The hook arm (20) is hinged to the connecting plate (17) by means of a hinge bolt (19), and after being unfolded, the hook arm (20) is locked by means of a first locking pin (18) and is kept in a vertically unfolded state; A first latch hole (25) is formed on the connecting plate (17), and the first latch hole (25) matches a second latch hole (32) formed on the hook arm (20); and after being locked, the hook arm (20) is locked by a second locking pin shaft and maintained in a folded state.

7. The aircraft towing rod that is easy to quickly remove from the pin according to claim 1, characterized in that: A plurality of third latch holes (23) are processed on the towing hook frame (16), and the third latch holes (23) are hingedly connected to the towing hook connecting seat (15) via latches.

8. The aircraft towing rod that is easy to quickly remove from the pin according to claim 1, characterized in that: The quick latch structure (21) comprises a latch sleeve (29) fixed to the end of the hook arm (20), a quick latch (27) being slidably mounted inside the latch sleeve (29), a rotating handle (26) being disposed at the end of the quick latch (27), a positioning column (24) being mounted on the outer wall of the quick latch (27), the positioning column (24) being matched with a U-shaped limiting groove (30) disposed on the latch sleeve (29), and a spring (28) being disposed outside the quick latch (27) and between the rotating handle (26) and the latch sleeve (29).

9. The aircraft towing rod that is easy to quickly remove from the pin according to claim 1, characterized in that: A detachable clamp (8) is mounted on the traction rod body (7).

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