Hand-operated dock ladder assembly moving device with directional locking universal wheels

Abstract

The utility model relates to a hand-operated dock ladder assembly moving device with directional locking universal wheels, and belongs to the technical field of dock ladder assemblies. Comprising a wheel carrier, a walking wheel is rotatably arranged in the wheel carrier, a fixing plate is arranged above the wheel carrier, a swing mechanism is arranged between the fixing plate and the wheel carrier, the wheel carrier is rotatably connected to the fixing plate through the swing mechanism, and a positioning mechanism is arranged on the swing mechanism; a mounting plate is fixedly arranged on the outer side of the wheel carrier, a gearbox is arranged on the mounting plate, a handle is arranged on an input shaft of the gearbox, and a clutch mechanism is arranged between an output shaft of the gearbox and a rotating shaft of the walking wheel; the problem that the moving speed and direction of an existing dock ladder assembly cannot be accurately controlled is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machine dock ladder frame, specifically relates to a hand formula area direction locking universal wheel's machine dock ladder frame mobile device. BACKGROUND

[0002] In aviation maintenance operation, the machine dock ladder frame is the important equipment of connecting ground and aircraft. The traditional ladder frame moving mode often relies on manpower to push or mechanical drive, and it is difficult to accurately control the moving speed and direction, and there is the risk of collision with the aircraft. Therefore, it is particularly important to develop a ladder frame moving system which can accurately control the moving speed and direction and is simple to operate. UTILITY MODEL CONTENTS

[0003] The utility model overcomes the insufficient of prior art, proposes a hand formula area direction locking universal wheel's machine dock ladder frame mobile device, solves the problem that the current machine dock ladder frame cannot accurately control the moving speed and direction.

[0004] In order to achieve the above purpose, the utility model is realized through the following technical schemes.

[0005] A hand formula area direction locking universal wheel's machine dock ladder frame mobile device, including wheel frame, the walking wheel is rotationally arranged in the wheel frame, the fixed plate is arranged on the top of the wheel frame, the rotary mechanism is arranged between the fixed plate and the wheel frame, the wheel frame is rotationally connected to the fixed plate through the rotary mechanism, and the positioning mechanism is arranged on the rotary mechanism.

[0006] Further, the wheel frame is the open downward U-shaped plate structure, including a horizontal plate and two vertical plates, the upper ends of the two left-right symmetrical vertical plates are fixedly connected with the left and right ends of the horizontal plate respectively, the walking wheel is arranged between the lower ends of the two vertical plates, the rotating shaft of the walking wheel is horizontally arranged along the left-right direction, and the rotating shafts of the walking wheel are rotationally inserted into the lower ends of the two vertical plates respectively.

[0007] Further, the fixed plate is the square plate structure arranged horizontally, and the fixed plate is located above the horizontal plate of the wheel frame.

[0008] Furthermore, the rotating mechanism includes a rotating drum, a rotating shaft, and a bearing; the rotating drum is a cylindrical structure that passes through from top to bottom, and the rotating drum is fixedly arranged on the upper end surface of the horizontal plate of the wheel frame, the axis of the rotating drum coincides with the axis of the mounting hole, and a plurality of positioning holes are arranged on the side wall of the rotating drum; the rotating shaft is a vertically arranged rod-shaped structure, the upper end of the rotating shaft is fixedly arranged at the center of the lower end surface of the fixed plate, and the lower end of the rotating shaft is inserted into the rotating drum and the mounting hole; a bearing is arranged between the rotating shaft, the rotating drum and the mounting hole.

[0009] Furthermore, the positioning mechanism includes a positioning cylinder, a positioning shaft, and an angle sensor; the positioning cylinder is a cylindrical structure with both ends penetrated, and a threaded hole with both ends penetrated is provided inside the positioning cylinder; the positioning cylinder is arranged on the outside of the rotating cylinder, and the axis of the positioning cylinder is arranged along the radial direction of the rotating cylinder; the positioning cylinder is fixedly set on the fixed plate; a positioning shaft is screwed inside the positioning cylinder; and an angle sensor is provided between the rotating cylinder and the rotating shaft.

[0010] Furthermore, the mounting plate is a horizontally arranged square plate structure, and the mounting plate is fixedly arranged at the lower end of the outer side surface of the vertical plate on the left side of the wheel frame; the gearbox is fixedly arranged at the end of the upper end surface of the mounting plate away from the wheel frame; the input shaft of the gearbox is located at the upper end and remains vertical; the output shaft of the gearbox is located on the side close to the wheel frame, and the output shaft of the gearbox is horizontally arranged along the left and right directions.

[0011] Furthermore, the clutch mechanism includes a clutch ring, a clutch gear, a traveling gear, and a clutch rod; the clutch gear is slidably sleeved on the outside of the output shaft of the gearbox, a key is provided between the clutch gear and the output shaft of the gearbox, the clutch ring is a circular ring structure, and a circular clamping groove is provided in the middle of the outer cylindrical surface of the clutch ring; the clutch ring is sleeved on the outside of the output shaft of the gearbox, and the clutch ring is fixedly arranged on the side of the clutch gear close to the gearbox.

[0012] Furthermore, a connecting plate is fixedly provided on the side of the wheel frame close to the gearbox, the middle part of the clutch rod is hinged on the connecting plate, a clamping rod is fixedly provided at one end of the clutch rod, and the clamping rod is slidably inserted into the clamping groove of the clutch ring; the left end of the rotating shaft of the traveling wheel extends to the outside of the wheel frame, and a traveling gear is fixedly provided at the left end of the rotating shaft of the traveling wheel, and the traveling gear is meshed with the clutch gear.

[0013] The beneficial effects of the present invention compared to the prior art are as follows:

[0014] 1. Improved safety: The manual drive and direction locking device enable the ladder to move accurately and slowly when approaching the aircraft, effectively avoiding the risk of collision with the aircraft.

[0015] 2. Enhanced flexibility: The design of horizontally rotatable moving wheels enables the ladder frame to move flexibly in complex environments and adapt to movement requirements in different angles and directions.

[0016] 3. Simplified operation: The hand-crank drive mechanism has a simple structure and is easy to operate, which reduces the labor intensity of the operator.

[0017] 4. Improved stability: The design of spherical roller bearings and lockable positioning mechanism ensures the stability and reliability of the ladder frame during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model in the forward direction;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model from the side;

[0021] Among them, 1 is the wheel frame, 2 is the traveling wheel, 3 is the fixed plate, 4 is the mounting plate, 5 is the gearbox, 6 is the handle, 7 is the rotating cylinder, 8 is the rotating shaft, 9 is the bearing, 10 is the positioning cylinder, 11 is the positioning shaft, 12 is the clutch ring, 13 is the clutch gear, 14 is the traveling gear, and 15 is the clutch rod. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0023] like Figure 1 As shown in FIG2 , the utility model provides a hand-cranked dock ladder moving device with direction-locking universal wheels, comprising a wheel frame 1, a traveling wheel 2 rotatably arranged inside the wheel frame 1, a fixed plate 3 is arranged above the wheel frame 1, a slewing mechanism is arranged between the fixed plate 3 and the wheel frame 1, the wheel frame 1 is rotatably connected to the fixed plate 3 through the slewing mechanism, and a positioning mechanism is arranged on the slewing mechanism; a mounting plate 4 is fixedly arranged on the outer side of the wheel frame 1, a gearbox 5 is arranged on the mounting plate 4, an input shaft of the gearbox 5 is provided with a handle 6, and a clutch mechanism is arranged between the output shaft of the gearbox 5 and the rotating shaft of the traveling wheel 2.

[0024] The wheel frame 1 is a U-shaped plate structure with an opening facing downward, comprising a horizontal plate and two vertical plates, wherein the upper ends of the two left-right symmetrical vertical plates are fixedly connected to the left and right ends of the horizontal plate respectively.

[0025] The walking wheel 2 is arranged between the lower ends of the two vertical plates, and the rotating shaft of the walking wheel 2 is horizontally arranged along the left-right direction. The left and right ends of the rotating shaft of the walking wheel 2 are respectively rotatably inserted into the inner portions of the lower ends of the two vertical plates.

[0026] The fixed plate 3 is a horizontally arranged square plate structure, and the fixed plate 3 is located above the horizontal plate of the wheel frame 1. An installation hole is arranged on the horizontal plate of the wheel frame 1.

[0027] The rotating mechanism includes a rotating cylinder 7, a rotating shaft 8, and a bearing 9. The rotating cylinder 7 is a vertically arranged cylindrical structure, and the rotating cylinder 7 is fixedly arranged on the upper end surface of the horizontal plate of the wheel frame 1. The axis of the rotating cylinder 7 coincides with the axis of the installation hole. A plurality of positioning holes are arranged on the side wall of the rotating cylinder 7. The rotating shaft 8 is a vertically arranged rod structure, and the upper end of the rotating shaft 8 is fixedly arranged at the center of the lower end surface of the fixed plate 3. The lower end of the rotating shaft 8 is rotatably inserted into the rotating cylinder 7 and the installation hole. The bearing 9 is arranged between the rotating shaft 8 and the rotating cylinder 7 and the installation hole, and the bearing 9 ensures that the rotating cylinder 7 and the wheel frame 1 rotate relative to the rotating shaft 8.

[0028] The bearing 9 is a self-aligning roller bearing.

[0029] The positioning mechanism includes a positioning cylinder 10, a positioning shaft 11, and an angle sensor. The positioning cylinder 10 is a cylindrical structure with both ends penetrating through. A threaded hole penetrating through both ends is arranged in the interior of the positioning cylinder 10. The positioning cylinder 10 is arranged outside the rotating cylinder 7, and the axis of the positioning cylinder 10 is arranged along the radial direction of the rotating cylinder 7. The positioning cylinder 10 is fixedly arranged on the fixed plate 3. A positioning shaft 11 is screwed in the interior of the positioning cylinder 10. An angle sensor is arranged between the rotating cylinder 7 and the rotating shaft 8, and the angle sensor detects the rotation angle of the rotating cylinder 7 and the wheel frame 1 as a whole.

[0030] The mounting plate 4 is a horizontally arranged square plate structure, and the mounting plate 4 is fixedly arranged on the lower end of the outer side surface of the vertical plate on the left side of the wheel frame 1. The transmission box 5 is fixedly arranged on the upper end surface of the mounting plate 4 away from the wheel frame 1. The input shaft of the transmission box 5 is located at the upper end and remains vertical, and the handle 6 is fixedly connected with the input shaft of the transmission box 5. The output shaft of the transmission box 5 is located on the side close to the wheel frame 1, and the output shaft of the transmission box 5 is horizontally arranged along the left-right direction.

[0031] The clutch mechanism includes a clutch ring 12, a clutch gear 13, a running gear 14, and a clutch rod 15. The clutch gear 13 is slidably mounted on the outside of the output shaft of the gearbox 5. A key is provided between the clutch gear 13 and the output shaft of the gearbox 5 to ensure that the clutch gear 13 can slide on the output shaft of the gearbox 5 while rotating synchronously with the output shaft of the gearbox 5. The clutch ring 12 is a circular ring structure, and a circular clamping groove is provided in the middle of the outer cylindrical surface of the clutch ring 12; the clutch ring 12 is mounted on the outside of the output shaft of the gearbox 5, and the clutch ring 12 is fixedly provided on the side of the clutch gear 13 close to the gearbox 5. A connecting plate is fixedly provided on the side of the wheel frame 1 close to the gearbox 5, and the middle part of the clutch rod 15 is hinged on the connecting plate. A clamping rod is fixedly provided at one end of the clutch rod 15, and the clamping rod is slidably inserted into the clamping groove of the clutch ring 12. The left end of the rotating shaft of the traveling wheel 2 extends outward from the wheel frame 1 , and a traveling gear 14 is fixedly provided on the left end of the rotating shaft of the traveling wheel 2 , and the traveling gear 14 is meshed with the clutch gear 13 .

[0032] The working principle of this utility model is:

[0033] When the ladder frame needs to be moved, the clutch lever 15 is rotated. The clutch lever 15, through the interlocking coupling lever and coupling groove, drives the clutch ring 12 and clutch gear 13 to slide on the output shaft of the gearbox 5, causing the clutch gear 13 to mesh with the travel gear 14. At this point, the positioning shaft 11 is inserted into a positioning hole on the rotating drum 7, locking the slewing mechanism and preventing the wheel frame 1 from rotating relative to the fixed plate 3. The handle 6 is then rotated, which drives the output shaft of the gearbox 5 to rotate. The output shaft of the gearbox 5, through the meshing clutch gear 13 and travel gear 14, drives the travel wheel 2 to rotate, thereby achieving slow and smooth movement of the ladder frame along a fixed direction.

[0034] To steer, the clutch lever 15 is first rotated. Through its interlocking coupling rod and coupling slot, the clutch ring 12 and clutch gear 13 slide on the output shaft of the transmission 5, disengaging the clutch gear 13 from the travel gear 14. The positioning shaft 11 is then rotated to disengage it from the positioning hole. The wheel frame 1 can then be rotated relative to the fixed plate 3 via the slewing mechanism, thereby changing the angle of the travel wheels 2 and, in turn, enabling the ladder frame to steer. When the angle sensor detects that the wheel frame 1 has rotated past the specified angle, the positioning shaft 11 is rotated to engage with another positioning hole, re-securing the wheel frame 1 relative to the fixed plate 3 and locking it at the specified angle. The clutch lever 15 is then rotated again, re-engaging the clutch gear 13 with the travel gear 14. The handle 6 is then turned to allow the ladder frame to slowly and smoothly move at the adjusted angle.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hand-cranked dock ladder moving device with direction-locking universal wheels, characterized by: The invention comprises a wheel frame (1), a running wheel (2) rotatably arranged inside the wheel frame (1), a fixing plate (3) arranged above the wheel frame (1), a slewing mechanism arranged between the fixing plate (3) and the wheel frame (1), the wheel frame (1) rotatably connected to the fixing plate (3) through the slewing mechanism, and a positioning mechanism arranged on the slewing mechanism; a mounting plate (4) fixedly arranged outside the wheel frame (1), a gearbox (5) arranged on the mounting plate (4), an input shaft of the gearbox (5) provided with a handle (6), and a clutch mechanism arranged between the output shaft of the gearbox (5) and the rotating shaft of the running wheel (2).

2. A hand-cranked dock ladder moving device with direction-locking universal wheels according to claim 1, characterized in that: The wheel frame (1) is a U-shaped plate structure with an opening facing downward, comprising a horizontal plate and two vertical plates, wherein the upper ends of the two vertical plates are fixedly connected to the left and right ends of the horizontal plate respectively; the running wheel (2) is arranged between the lower ends of the two vertical plates, and the rotating shaft of the running wheel (2) is arranged horizontally along the left and right directions, and the left and right ends of the rotating shaft of the running wheel (2) are respectively rotatably inserted into the lower ends of the two vertical plates.

3. The hand-cranked dock ladder moving device with direction-locking universal wheels according to claim 2, characterized in that: The fixing plate (3) is a horizontally arranged square plate-shaped structure, and the fixing plate (3) is located above the horizontal plate of the wheel frame (1); a mounting hole is provided on the horizontal plate of the wheel frame (1) and passes through the horizontal plate.

4. The hand-cranked dock ladder moving device with direction-locking universal wheels according to claim 3, characterized in that: The rotary mechanism comprises a rotary drum (7), a rotary shaft (8), and a bearing (9); the rotary drum (7) is a cylindrical structure that passes through from top to bottom, the rotary drum (7) is fixedly arranged on the upper end surface of the horizontal plate of the wheel frame (1), the axis of the rotary drum (7) coincides with the axis of the mounting hole, and a plurality of positioning holes are arranged on the side wall of the rotary drum (7); the rotary shaft (8) is a vertically arranged rod-shaped structure, the upper end of the rotary shaft (8) is fixedly arranged at the center of the lower end surface of the fixed plate (3), and the lower end of the rotary shaft (8) is inserted into the rotary drum (7) and the inside of the mounting hole; a bearing (9) is arranged between the rotary shaft (8), the rotary drum (7), and the mounting hole.

5. The hand-cranked dock ladder moving device with direction-locking universal wheels according to claim 4, characterized in that: The positioning mechanism comprises a positioning cylinder (10), a positioning shaft (11), and an angle sensor; the positioning cylinder (10) is a cylindrical structure with two ends through, and a threaded hole with two ends through is provided inside the positioning cylinder (10); the positioning cylinder (10) is arranged on the outside of the rotating cylinder (7), and the axis of the positioning cylinder (10) is arranged along the radial direction of the rotating cylinder (7); the positioning cylinder (10) is fixedly arranged on the fixed plate (3); a positioning shaft (11) is screwed inside the positioning cylinder (10); and an angle sensor is provided between the rotating cylinder (7) and the rotating shaft (8).

6. The hand-cranked dock ladder moving device with direction-locking universal wheels according to claim 2, characterized in that: The mounting plate (4) is a horizontally arranged square plate-shaped structure, and the mounting plate (4) is fixedly arranged at the lower end of the outer side surface of the vertical plate on the left side of the wheel frame (1); the gearbox (5) is fixedly arranged at the end of the upper end surface of the mounting plate (4) away from the wheel frame (1); the input shaft of the gearbox (5) is located at the upper end and remains vertical; the output shaft of the gearbox (5) is located on the side close to the wheel frame (1), and the output shaft of the gearbox (5) is horizontally arranged along the left-right direction.

7. A hand-cranked dock ladder moving device with direction-locking universal wheels according to claim 6, characterized in that: The clutch mechanism comprises a clutch ring (12), a clutch gear (13), a running gear (14), and a clutch rod (15); the clutch gear (13) is slidably sleeved on the outside of the output shaft of the gearbox (5); a key is provided between the clutch gear (13) and the output shaft of the gearbox (5); the clutch ring (12) is a circular ring structure; a circular clamping groove is provided in the middle of the outer cylindrical surface of the clutch ring (12); the clutch ring (12) is sleeved on the outside of the output shaft of the gearbox (5), and the clutch ring (12) is fixedly provided on a side of the clutch gear (13) close to the gearbox (5).

8. The hand-cranked dock ladder moving device with direction-locking universal wheels according to claim 7, characterized in that: A connecting plate is fixedly provided on one side of the wheel frame (1) close to the gearbox (5), the middle portion of the clutch rod (15) is hinged to the connecting plate, a clamping rod is fixedly provided at one end of the clutch rod (15), and the clamping rod is slidably inserted into the clamping groove of the clutch ring (12); the left end of the rotating shaft of the running wheel (2) extends to the outside of the wheel frame (1), and a running gear (14) is fixedly provided at the left end of the rotating shaft of the running wheel (2), and the running gear (14) is meshed with the clutch gear (13).

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