Emergency consignment frame for transition of fault scissor car

Abstract

An emergency consignment frame for transition of a fault scissor car comprises a tricycle frame, a driving lifting mechanism and a driven lifting mechanism. The tricycle frame comprises a bottom frame, a front mounting frame and a rear mounting frame; and a stop raised line is arranged on the rear mounting frame. The driving lifting mechanism comprises a driving end assembling box, a pedal type hydraulic jacking cylinder is vertically arranged in the driving end assembling box, a driving end guide rod is coaxially fixed to an output shaft of the hydraulic jacking cylinder, and the diameter of the driving end guide rod is smaller than that of the output shaft of the hydraulic jacking cylinder. The lower end of the driving end guide rod sleeves the front mounting frame, and the top end of the driving end guide rod penetrates through a guide hole in the top plate of the driving end assembly box. The driven lifting mechanism comprises an L-shaped assembly plate, and a stop helical tooth plate is arranged on the L-shaped assembly plate and matched with the stop protruding strip. According to the emergency consignment frame, the fault scissor car on the triangular frame is jacked through cooperation of the front-end hydraulic jacking cylinder, the rear-end stopping oblique tooth plate and the stopping protruding strip, the fault scissor car can be rapidly evacuated from a fault site, efficiency is high, safety and stability are achieved, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft ground maintenance, in particular to an emergency transport rack for a faulty scissor lift transfer. Background Art

[0002] In the daily work of aircraft maintenance, scissor lifts are often used for high-altitude lifting operations. In actual work, sometimes the scissor lift may fail due to power failure. When the scissor lift fails, the protection mechanism will be automatically activated, and the wheels will be locked. The purpose is to prevent the scissor lift from automatically sliding down after power failure during slope operations, causing safety accidents to high-altitude workers. Although the scissor lift can be temporarily unlocked through a temporary unlocking mechanism when the wheels are locked, the scissor lift can only move a short distance in the temporary unlocking state and cannot be transported long distances away, making it very difficult for the scissor lift to evacuate the fault site.

[0003] In order to ensure safe operation, airlines usually require faulty scissor lifts to evacuate aircraft urgently, quickly and safely. In the past, in such cases, large-tonnage forklifts could only be urgently deployed for auxiliary evacuation. However, due to the on-site conditions, the distance between aircraft in the hangar is very small, and large-tonnage forklifts are difficult to flexibly turn and lift between aircraft. As a result, every time a scissor lift fails, it takes a lot of time and manpower to evacuate the scissor lift from the fault site, which is very inefficient. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an emergency transport rack for transferring a faulty scissor lift to overcome the deficiencies in the prior art.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An emergency transport rack for transferring a faulty scissor lift comprises a three-wheel frame, an active lifting mechanism and a driven lifting mechanism; the active lifting mechanism and the driven lifting mechanism are respectively arranged in a finished shape at the front end and the rear end of the three-wheel frame.

[0007] The tricycle frame comprises a bottom frame, a front mounting frame and a rear mounting frame; a driven end assembly seat is fixedly connected to the outer side of the rear mounting frame, a through hole is provided in the center of the driven end assembly seat, and a stop convex strip is protruded on the rear side surface of the driven end assembly seat;

[0008] The active lifting mechanism comprises an active end assembly box, a pedal-type hydraulic jacking cylinder is vertically arranged in the active end assembly box, an active end guide rod is coaxially fixed on the output shaft of the hydraulic jacking cylinder, and the diameter of the active end guide rod is smaller than the diameter of the output shaft of the hydraulic jacking cylinder; the lower end of the active end guide rod is sleeved on the front mounting frame, and the top end of the active end guide rod passes through the guide hole on the top plate of the active end assembly box;

[0009] The driven lifting mechanism comprises an L-shaped assembly plate, a driven end guide rod is vertically arranged inside the L-shaped assembly plate, and the upper end of the driven end guide rod passes through the through hole of the driven end assembly seat and is plugged into the rear mounting frame.

[0010] Furthermore, a stop bevel tooth plate is vertically hinged on the inner side of the L-shaped assembly plate, and the stop bevel tooth plate is provided with bevel teeth that cooperate with the stop convex strips.

[0011] Furthermore, a spring clip angle code is also provided on the L-shaped assembly plate, one end of which is connected to the horizontal plate of the L-shaped assembly plate, and the other end of which is connected to the outer side surface of the stop bevel tooth plate.

[0012] Preferably, a pair of high-position locking holes for the frame are also provided on the side plates of the active-end assembly box, and screw locking pins are provided in the high-position locking holes for the frame.

[0013] Preferably, a guide through slot is vertically provided on the back plate of the active end assembly box, and the width of the guide through slot matches the width of the main beam of the front mounting frame.

[0014] Preferably, a buffer spring is sleeved on the driven end guide rod.

[0015] Preferably, a driving end universal wheel is fixedly connected to the bottom of the driving end assembly box; and a driven end universal wheel is fixedly connected to the bottom of the L-shaped assembly plate.

[0016] Preferably, a pair of wheel chock frames are separated on the left and right sides of the chassis by connecting rods.

[0017] Furthermore, a pair of upper frame inclined pads are fixedly arranged at intervals at the rear end of the base frame, and the pair of upper frame inclined pads correspond to the pair of wheel chock frames.

[0018] Preferably, the stop bevel tooth plate and the vertical plate of the L-shaped assembly plate are located relatively on both sides of the driven end guide rod.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1) In this case, an emergency transport rack for transferring a faulty scissor lift is provided. The hydraulic jacking cylinder at the front end and the stop bevel plate and stop convex strip at the rear end cooperate to lift the triangular frame through three-point support, thereby lifting the faulty scissor lift on the triangular frame, and the faulty scissor lift can be quickly evacuated from the fault site. It is efficient, safe and stable, saves time and effort, and effectively guarantees the operation of the airline.

[0021] 2) In this case, a faulty scissor lift emergency transport frame is used for transfer. The hydraulic top cylinder has a built-in stop function. In addition, the high-position lock hole of the frame in the front-end active lifting mechanism and the screw lock pin cooperate to achieve a mechanical stop. The two stop methods work together to prevent the faulty scissor lift on the three-wheel frame from falling sharply under extreme working conditions, effectively ensuring the safety of the equipment and operations.

[0022] 3) The emergency transport rack for transferring a faulty scissor lift in this case has a simple structure, is easy to use, has flexible steering, and has a low manufacturing cost, which is conducive to promotion.

[0023] In order to more clearly understand the present invention, the following will describe the preferred implementation modes of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a reference diagram of the use state of the utility model;

[0025] Figure 2 , Figure 3 , Figure 4 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 5 It is a structural schematic diagram of a tricycle frame of the utility model;

[0027] Figure 6 , Figure 7 It is a structural schematic diagram of the active lifting mechanism of the utility model;

[0028] Figure 8 It is a structural schematic diagram of the driven lifting mechanism of the utility model.

[0029] Figure ID:

[0030] 1-three-wheel frame, 2-active lifting mechanism, 3-driven lifting mechanism; 11-underframe, 12-front mounting frame, 13-rear mounting frame, 131-driven end assembly seat, 132-stop convex strip, 14-wheel block frame, 15-upper frame inclined pad; 21-active end assembly box, 22-active end universal wheel, 23-hydraulic top cylinder, 231-output shaft, 24-active end guide rod, 25-guide groove, 26-frame high position lock hole, 27-screw lock pin; 31-L-type assembly plate, 32-driven end universal wheel, 33-driven end guide rod, 34-buffer spring, 35-stop oblique tooth plate, 36-spring angle code; 100-consignment frame, 200-scissor car. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0034] See also Figure 1-8 The utility model provides an emergency transport frame 100 for transferring a faulty scissor lift, which is independently arranged at the front and rear ends of the faulty scissor lift 200, and is used to support and clamp the wheels of the scissor lift 200 and tow the scissor lift 200 away from the fault site, so as to facilitate off-site repair of the faulty scissor lift 200.

[0035] The emergency transport rack 100 includes a three-wheel frame 1, an active lifting mechanism 2 and a driven lifting mechanism 3; the active lifting mechanism 2 and the driven lifting mechanism 3 are respectively arranged in a product shape at the front end and the rear end of the three-wheel frame 1, wherein one set of active lifting mechanism 2 is arranged at the front end of the three-wheel frame 1, and two sets of driven lifting mechanisms 3 with the same structure are symmetrically arranged at the rear end of the three-wheel frame 1.

[0036] The tricycle frame 1 includes a base frame 11, a front mounting frame 12 and a rear mounting frame 13; the front mounting frame 12 is fixedly arranged at the front end of the base frame 11, and the rear mounting frame 13 is symmetrically fixedly arranged on both sides of the base frame 11 in pairs, and the front mounting frame 12 and the rear mounting frame 13 are both higher than the base frame 11; the front mounting frame 12 is used to install the active lifting mechanism 2, and the rear mounting frame 13 is used to install the driven lifting mechanism 3.

[0037] Furthermore, a pair of wheel block frames 14 are separated on the left and right sides of the base frame 11 by connecting rods, and the wheel block frames 14 are used to place and clamp the wheels of the scissor lift 200.

[0038] Furthermore, a pair of upper frame inclined pads 15 are fixedly arranged at intervals at the rear end of the base frame 11, and the pair of upper frame inclined pads 15 correspond to the pair of wheel block frames 14, so that the temporarily unlocked wheels of the scissor lift 200 can be pushed into the wheel block frame 14 along the inclined surface of the upper frame inclined pads 15 by manual force. Since the wheel block frame 14 is hollow, after the wheels of the scissor lift 200 are trapped in the wheel block frame 14, the wheels of the scissor lift 200 will not slide out during the transportation process, ensuring the safety of the transportation process.

[0039] Furthermore, a driven end assembly seat 131 is fixedly connected to the outer side of the rear mounting frame 13 , a through hole is provided in the center of the driven end assembly seat 131 , and a stop convex strip 132 is protruded on the rear side surface of the driven end assembly seat 131 .

[0040] The active lifting mechanism 2 includes an active end assembly box 21, and an active end universal wheel 22 is fixedly connected to the bottom of the active end assembly box 21; a foot-operated hydraulic top cylinder 23 is vertically arranged in the active end assembly box 21, and an active end guide rod 24 is coaxially fixed on the output shaft 231 of the hydraulic top cylinder 23, and the diameter of the active end guide rod 24 is smaller than the diameter of the output shaft 231 of the hydraulic top cylinder 23, so that the connection between the two is stepped; the lower end of the active end guide rod 24 is sleeved on the front mounting frame 12 through the through hole on the main beam of the front mounting frame 12, and the top end of the active end guide rod 24 passes through the guide hole on the top plate of the active end assembly box 21 and passes out to the outside of the active end assembly box 21. Since the connection between the active end guide rod 24 and the output shaft 231 of the hydraulic jacking cylinder 23 is in a step shape, when the pedal of the hydraulic jacking cylinder 23 is stepped on, the output shaft 231 of the hydraulic jacking cylinder 23 extends upward and lifts the front mounting frame 12, thereby driving the entire three-wheeled vehicle frame 1 to rise and fall. During this process, the active end guide rod 24 rises and falls in the guide hole on the top plate of the active end assembly box 21, ensuring that the front mounting frame 12 rises and falls straight up and down.

[0041] Furthermore, a guide slot 25 is vertically provided on the back plate of the active end assembly box 21, and the width of the guide slot 25 matches the width of the main beam of the front mounting frame 12, so that the main beam of the front mounting frame 12 can pass through the guide slot 25 into the active end assembly box 21 and be sleeved with the active end guide rod 24. Since the guide slot 25 is vertically arranged, it can further ensure that the front mounting frame 12 can be lifted up and down straightly.

[0042] Furthermore, a pair of frame high position locking holes 26 are also formed through the side plates of the active end assembly box 21, and screw locking pins 27 are arranged in the frame high position locking holes 26. When the front mounting frame 12 (three-wheel frame 1) is lifted to the highest position (close to the top plate of the active end assembly box 21), the screw locking pins 27 are inserted into the frame high position locking holes 26, so that the front mounting frame 12 can be restricted from descending and kept at a high position.

[0043] In this embodiment, the high-position locking hole 26 of the frame and the screw locking pin 27 cooperate to play two roles:

[0044] First, the front mounting frame 12 (three-wheel frame 1) is kept at a high position. If the overall weight of the scissor lift 200 is large, the mechanical mechanism cooperates to play a role of mechanical stopping, so as to prevent the three-wheel frame 1 from falling sharply under extreme working conditions. In this embodiment, the hydraulic top cylinder 23 also has a built-in stopping function. The two stopping modes cooperate, which is safer when used in actual working conditions.

[0045] Secondly, in the initial state (the hydraulic top cylinder 23 is in the initial state of decompression when there is no transport scissors car 200), the three-wheel frame 1 is in a low position and close to the ground, which makes it inconvenient for the emergency transport rack 100 to be dragged on the ground. The three-wheel frame 1 is stuck in a high position and is not easy to contact the ground, so it is more convenient to drag it manually.

[0046] The driven lifting mechanism 3 includes an L-shaped assembly plate 31, and a driven end universal wheel 32 is fixedly connected to the bottom of the L-shaped assembly plate 31; a driven end guide rod 33 is vertically arranged on the inner side of the L-shaped assembly plate 31, and a buffer spring 34 is sleeved on the driven end guide rod 33; the upper end of the driven end guide rod 33 passes through the through hole of the driven end assembly seat 131 and is plugged into the rear mounting frame 13.

[0047] Furthermore, a stop bevel tooth plate 35 is vertically hinged on the inner side of the L-shaped assembly plate 31, and the stop bevel tooth plate 35 and the vertical plate of the L-shaped assembly plate 31 are relatively located on both sides of the driven end guide rod 33; the stop bevel tooth plate 35 is provided with bevel teeth that cooperate with the stop convex strip 132, so that the driven end assembly seat 131 on the rear mounting frame 13 has a stopping function when descending.

[0048] Furthermore, the L-shaped assembly plate 31 is provided with a spring clip angle code 36, one end of which is connected to the horizontal plate of the L-shaped assembly plate 31, and the other end is connected to the outer side surface of the stop bevel plate 35. Under the elastic force of the spring clip angle code 36, the inner side surface of the stop bevel plate 35 with bevel teeth always keeps in contact and fit with the stop convex strip 132 of the driven end assembly seat 131. When the elastic force of the spring clip angle code 36 is manually overcome and the stop bevel plate 35 is pulled outward, the stop bevel plate 35 is separated from the stop convex strip 132, and the driven end assembly seat 131 on the rear mounting frame 13 can be lowered, so that the tricycle frame 1 can also be lowered.

[0049] The working process of the emergency transport frame 100 for the transfer of a faulty scissor lift in the present case in actual working conditions is as follows:

[0050] 1. Let the first emergency transport frame 100 approach the front wheel of the scissor lift 200, pull out the screw lock pin 27 in the high-position lock hole 26 of the frame, and lower the three-wheel frame 1 to the initial low-position hydraulic top cylinder 23, which is also the initial pressure relief state. At this time, the bottom of the three-wheel frame 1 is relatively close to the ground; manually push the temporarily unlocked scissor lift 200, and the front wheel of the scissor lift 200 is pushed into the wheel block frame 14 along the inclined surface of the upper frame inclined pad 15 and positioned;

[0051] 2. Step on the pedal of the hydraulic jacking cylinder 23 to pressurize the hydraulic jacking cylinder 23, and the output shaft 231 of the hydraulic jacking cylinder 23 actively lifts the tricycle frame 1, and at the same time, the rear mounting frame 13 is lifted with the driven end assembly seat 131, and the rear mounting frame 13 is stopped at any time under the cooperation of the stop convex strip 132 on the driven end assembly seat 131 and the stop bevel tooth plate 35 on the L-shaped assembly plate 31, so that the front and rear ends of the tricycle frame 1 have three-point support forces at the same time, which can stably support the front end of the scissors lift 200 to rise steadily; similarly, the rear end of the scissors lift 200 can also be lifted steadily under the action of the second emergency consignment frame 100, so that the scissors lift 200 can be consigned as a whole to the front and rear emergency consignment frames 100;

[0052] 3. The faulty scissor lift 200 is towed away from the fault site by manual pushing or towing for subsequent repair;

[0053] 4. After the faulty scissor lift 200 leaves the site, it is only necessary to manually overcome the elastic force of the spring clip angle code 36 and push the stop bevel plate 35 outward to separate the stop bevel plate 35 from the stop convex strip 132. With the cooperation of the pressure relief valve of the hydraulic top cylinder 23, the three-wheel frame 1 is lowered to the initial low position as a whole. At this time, the scissor lift can be easily evacuated from the three-wheel frame 1.

[0054] Compared with the existing technology, the emergency transport rack for the transfer of a faulty scissor lift in this case, through the cooperation of a hydraulic jacking cylinder arranged at the front end, a stop bevel tooth plate and a stop convex bar arranged at the rear end, lifts the triangular frame through three-point support, thereby lifting the faulty scissor lift on the triangular frame, and can quickly evacuate the faulty scissor lift from the fault site, with high efficiency, safety and stability, saving time and effort, and effectively guaranteeing the airline's operating business.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An emergency transport rack for transferring a faulty scissor lift, comprising a three-wheel frame (1), an active lifting mechanism (2) and a driven lifting mechanism (3); the active lifting mechanism (2) and the driven lifting mechanism (3) are respectively arranged at the front end and the rear end of the three-wheel frame (1) in a finished shape, characterized in that: The tricycle frame (1) comprises a base frame (11), a front mounting frame (12) and a rear mounting frame (13); a driven end assembly seat (131) is fixedly connected to the outer side of the rear mounting frame (13); a through hole is provided in the center of the driven end assembly seat (131); and a stop convex strip (132) is protruded on the rear side surface of the driven end assembly seat (131); The active lifting mechanism (2) comprises an active end assembly box (21), a pedal-type hydraulic jacking cylinder (23) is vertically arranged in the active end assembly box (21), an active end guide rod (24) is coaxially fixed on the output shaft (231) of the hydraulic jacking cylinder (23), and the diameter of the active end guide rod (24) is smaller than the diameter of the output shaft (231) of the hydraulic jacking cylinder (23); the lower end of the active end guide rod (24) is sleeved on the front mounting frame (12), and the top end of the active end guide rod (24) passes through the guide hole on the top plate of the active end assembly box (21); The driven lifting mechanism (3) comprises an L-shaped assembly plate (31), a driven end guide rod (33) is vertically arranged inside the L-shaped assembly plate (31), and the upper end of the driven end guide rod (33) passes through the through hole of the driven end assembly seat (131) and is plugged into the rear mounting frame (13).

2. The emergency transport rack for transferring a faulty scissor lift according to claim 1, characterized in that: A stop bevel tooth plate (35) is also vertically hinged on the inner side of the L-shaped assembly plate (31), and the stop bevel tooth plate (35) is provided with bevel teeth that cooperate with the stop convex strip (132).

3. The emergency transport rack for transferring a faulty scissor lift according to claim 2, characterized in that: The L-shaped assembly plate (31) is also provided with a spring clip angle code (36), one end of which is connected to the horizontal plate of the L-shaped assembly plate (31), and the other end of which is connected to the outer side surface of the stop bevel tooth plate (35).

4. The emergency transport rack for transferring a faulty scissor lift according to claim 1, characterized in that: A pair of vehicle frame high position locking holes (26) are also provided through the side plates of the active end assembly box (21), and screw locking pins (27) are arranged in the vehicle frame high position locking holes (26).

5. The emergency transport rack for transferring a faulty scissor lift according to claim 1, characterized in that: A guide slot (25) is vertically formed on the back plate of the active end assembly box (21), and the width of the guide slot (25) matches the width of the main beam of the front mounting frame (12).

6. The emergency transport rack for transferring a faulty scissor lift according to claim 1, characterized in that: A buffer spring (34) is sleeved on the driven end guide rod (33).

7. The emergency transport rack for transferring a faulty scissor lift according to claim 1, characterized in that: The bottom of the active end assembly box (21) is fixedly connected to a active end universal wheel (22); the bottom of the L-shaped assembly plate (31) is fixedly connected to a driven end universal wheel (32).

8. The emergency transport rack for transferring a faulty scissor lift according to claim 1, characterized in that: A pair of wheel block frames (14) are separated on the left and right sides of the base frame (11) by connecting rods.

9. The emergency transport rack for transferring a faulty scissor lift according to claim 8, characterized in that: A pair of upper frame inclined pads (15) are fixedly arranged at intervals at the rear end of the base frame (11), and the pair of upper frame inclined pads (15) correspond to a pair of wheel block frames (14).

10. The emergency transport rack for transferring a faulty scissor lift according to claim 2, characterized in that: The stop bevel tooth plate (35) and the vertical plate of the L-shaped assembly plate (31) are located opposite to each other on both sides of the driven end guide rod (33).

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