CN219217483U

CN219217483U - Hydraulic elevator for landing gear cabin

Info

Publication number: CN219217483U
Application number: CN202223571181.2U
Authority: CN
Inventors: 黄光明
Original assignee: Chengdu Zhengtong Aviation Equipment Co ltd
Current assignee: Chengdu Zhengtong Aviation Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

The utility model provides a landing gear cabin hydraulic elevator, and belongs to the technical field of airport maintenance equipment. Including lower carriage and upper carriage, the bottom of lower carriage is provided with the pulley, is provided with the parking subassembly that is used for restricting the lower carriage and slides on the lower carriage, and the vertical sliding connection of upper carriage relative lower carriage is provided with the lifting unit who is used for driving upper carriage horizontal lift on the lower carriage, and one side of lower carriage is fixed to be provided with down the ladder frame, and one side of upper carriage is fixed to be provided with the last ladder frame that corresponds with down the ladder frame, and the top of upper carriage is provided with stands people's platform. The operating personnel drives the cross articulated rod group to shrink through starting the cylinder to in contracting down the upper support frame into the lower support frame, can reduce the overall height of companion ladder, in the operating personnel of being convenient for removes the companion ladder to the cabin from the entry in aircraft landing gear cabin, have the effect that makes things convenient for operating personnel to maintain the cabin.

Description

Hydraulic elevator for landing gear cabin

Technical Field

The utility model relates to the technical field of airport maintenance equipment, in particular to a landing gear cabin hydraulic elevator.

Background

In the airport logistics support equipment, the movable stairway is an indispensable equipment, and workers such as the movable stairway, a maintenance group and the like can climb to a high place to inspect and maintain parts of the airplane.

The current mobile stairways are fixed in height and require the personnel to push the mobile stairway into the landing gear bay of the aircraft when performing maintenance on the landing gear bay. However, the limited maximum height of the mobile stairway is due to the small size of the entrance to the landing gear bay, which is not easily accessible for maintenance of the top part of the landing gear bay.

Disclosure of Invention

In view of the above, the present utility model provides a landing gear bay hydraulic elevator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a undercarriage cabin hydraulic elevator, including lower carriage and upper carriage, the bottom of lower carriage is provided with the pulley, is provided with the parking subassembly that is used for restricting the lower carriage to slide on the lower carriage, is provided with the lifting unit who is used for driving upper carriage horizontal lift on the lower carriage relative lower carriage, and one side of lower carriage is fixed to be provided with down the ladder frame, and one side of upper carriage is fixed to be provided with the last ladder frame that corresponds with down the ladder frame, and the top of upper carriage is provided with the standing platform.

Further, the parking subassembly includes spacing screw rod, vertical fixedly connected with screw sleeve on the lower carriage, and spacing screw rod threaded connection is in screw sleeve, and spacing screw rod's top fixedly connected with handle, spacing screw rod's bottom fixedly connected with supporting disk, is provided with multiunit parking subassembly on the lower carriage.

Further, the lifting assembly comprises a hydraulic cylinder and a cross hinge rod group, the cross hinge rod group comprises two groups of hinge arms with middle parts hinged with each other, the same side ends of the two groups of hinge arms are hinged with the lower support frame and the upper support frame respectively, the other side ends of the two groups of hinge arms are horizontally sliding and rotating connected with the upper support frame and the lower support frame respectively, the hydraulic cylinder is hinged on one group of hinge arms, and a piston rod of the hydraulic cylinder is hinged with the other group of hinge arms.

Further, a plurality of guardrails are arranged on the edge of the upper support frame along the circumferential direction of the standing platform, the guardrails are vertically lifted and installed on the upper support frame, and a limiting assembly used for limiting the guardrails to lift is arranged on the upper support frame.

Further, spacing subassembly includes the bolt, and the guardrail includes vertical decurrent connecting rod, and the fixed installation sleeve that is provided with in edge of upper bracket, and the connecting rod wears to establish in the installation sleeve, and the spacing a plurality of jacks that are equipped with along vertical direction on the connecting rod, has seted up the perforation on the installation sleeve, and the bolt is pegged graft simultaneously in perforation on the installation sleeve and a jack on the connecting rod.

Further, the bottom of the lower support frame is provided with a U-shape with an opening at one side, and the upper support frame is arranged right above the opening at the bottom of the lower support frame.

Further, one end of the lower support frame along the length direction is connected with a traction mop, and the traction mop is used for being connected with a trailer.

The beneficial effects of the utility model are as follows: 1. the operating personnel drive the shrink of cross articulated rod group through starting the cylinder to in contracting down the upper support frame into the lower support frame, can reduce the overall height of companion ladder, be convenient for operating personnel remove the companion ladder to the cabin in from the entry of aircraft undercarriage cabin.

2. The U-shaped opening of the bottom beam at the bottom of the lower support frame faces the inner wall of the cabin, and the U-shaped opening can be used for accommodating a fixed structure in the cabin, so that the elevator can be maximally close to the inner wall of the cabin, and an operator can conveniently maintain the cabin.

Drawings

Fig. 1 is a schematic diagram of an overall structure of an elevator according to an embodiment of the present application.

Fig. 2 is a schematic view of a rear structure of an elevator according to an embodiment of the present application.

Fig. 3 is a schematic overall structure of an elevator according to another embodiment of the present application.

Wherein, 1, lower support frame; 11. a pulley; 12. descending a ladder frame; 13. a threaded sleeve; 14. a guide cylinder; 15. a bottom beam; 16. a top beam; 2. an upper support frame; 21. a standing platform; 22. a step-up frame; 23. a guide post; 3. a park assembly; 31. a limit screw; 32. a handle; 33. a support plate; 4. a lifting assembly; 41. a hydraulic cylinder; 42. an articulated arm; 5. guard bars; 51. a connecting rod; 52. a jack; 6. a limit component; 61. a plug pin; 62. a mounting sleeve; 63. perforating; 7. traction mop; 8. a weight box.

Detailed Description

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

The embodiment of the application discloses undercarriage cabin hydraulic elevator, refer to fig. 1, including lower carriage 1 and upper carriage 2, lower carriage 1 includes bottom beam 15 that bottom one side is open and is "U" shape to and the top is used for connecting upper carriage 2's back timber 16, connects through many supporting beams between bottom beam 15 and the back timber 16. The upper support frame 2 is installed directly over the bottom opening of the lower support frame 1, a stable support framework is formed by utilizing the U-shaped bottom beams 15 of the lower support frame 1, the gravity center of the elevator can be stable by arranging the upper support frame 2 at the opening of the U-shaped bottom beams 15, and after the elevator is moved into the cabin, the U-shaped bottom beams 15 of the lower support frame 1 can also provide avoidance for part of the structure inside the cabin so as to facilitate the elevator to be moved close to the edge position of the inner wall of the cabin.

The top beam 16 of the lower support frame 1 is fixedly provided with a vertical guide cylinder 14 through welding, the upper support frame 2 is provided with a vertical guide column 23, and the guide column 23 vertically slides and penetrates through the guide cylinder 14. The upper support frame 2 is vertically and slidably connected to the lower support frame 1 through a guide post 23 and a guide cylinder 14, and the lower support frame 1 is provided with a lifting assembly 4 for driving the upper support frame 2 to horizontally lift. The top of the upper supporting frame 2 is also provided with a standing platform 21, the same sides of the lower supporting frame 1 and the upper supporting frame 2 are respectively provided with a lower ladder frame 12 and an upper ladder frame 22, the inclined design of the lower ladder frame 12 is convenient for operators to climb up and down, and the upper ladder frame 22 is vertically designed to save the occupied space of the upper supporting frame 2 relative to the lower supporting frame 1. The upper ladder frame 22 corresponds to the lower ladder frame 12, the top of the upper ladder frame 22 is connected to the side of the landing platform 21, and an operator can climb along the lower ladder frame 12 and the upper ladder frame 22 to the landing platform 21. The pulley 11 is fixedly installed at the bottom of the lower support frame 1 through bolts, the pulley 11 can be a universal pulley 11, and the parking assembly 3 used for limiting the lower support frame 1 to move on the ground is further arranged on the lower support frame 1.

Through the liftable upper ladder frame 22 of design, operating personnel can remove the companion ladder to the cabin from the entry in aircraft undercarriage cabin at upper bracket 2 decline state, utilizes parking subassembly 3 to spacing support of lower carriage 1 subaerial, will drive upper bracket 2 again to rise to suitable height through lifting unit 4, makes things convenient for operating personnel to climb to the maintenance to aircraft inside after suitable height, makes operating personnel maintenance work convenient.

In the present embodiment, the parking assembly 3 includes a check screw 31. The lug is fixedly welded on the bottom beam 15 of the lower support frame 1, the threaded sleeve 13 is fixedly arranged on the lug, the limit screw 31 is in threaded connection with the threaded sleeve 13, the two ends of the limit screw 31 extend out of the threaded sleeve 13, the top end of the limit screw 31 is coaxially and fixedly connected with the handle 32, and the bottom end of the limit screw 31 is fixedly connected with the supporting disc 33. The parking assembly 3 is provided with a plurality of groups at intervals on the ground of the lower support frame 1, an operator rotates the handle 32 to enable the support disc 33 of the limit screw 31 to be supported on the ground, and the pulley 11 on the lower support frame 1 is propped up from the ground, so that the lower support frame 1 can be limited to slide relatively on the ground.

The lifting assembly 4 comprises a hydraulic cylinder 41 and a cross hinge rod group, the cross hinge rod group comprises two groups of hinge arms 42, the middle parts of the two groups of hinge arms 42 are hinged with each other, one end of one group of hinge arms 42 is hinged with the lower support frame 1, the other end of the other group of hinge arms rotates to be provided with rollers, the rollers are arranged on the upper support frame 2 in a rolling manner along the horizontal direction through the rollers, and one end of the other group of hinge arms 42 is hinged with the upper support frame 2, the other end of the other group of hinge arms rotates to be provided with rollers, and the rollers are arranged on the lower support frame 1 in a rolling manner along the horizontal direction through the rollers. The hydraulic cylinder 41 is hinged to any one set of hinge arms 42, and a piston rod of the hydraulic cylinder 41 is hinged to the other set of hinge arms 42.

Further, the safety of companion ladder is improved to guardrail 5, still installs a plurality of guardrails 5 at the week side edge of last mounting bracket's standing platform 21, and guardrail 5 can slide relatively upper support frame 2 along vertical direction to be equipped with on upper support frame 2 and be used for restricting the spacing subassembly 6 that guardrail 5 goes up and down relatively upper support frame 2. The operating personnel can descend guardrail 5 from upper support frame 2 to descend upper support frame 2 from lower support frame 1, thereby reduce the overall height of companion ladder, be convenient for push into the cabin with companion ladder, lift guardrail 5 from standing around people's platform 21 after, utilize spacing subassembly 6 to fix guardrail 5, also can improve operating personnel's security when using companion ladder.

Specifically, the limiting component 6 may include a pin 61, an installation sleeve 62 is fixedly mounted on the upper support frame 2 near the edge of the standing platform 21 by welding, the guardrail 5 includes at least two vertical downward connecting rods 51, the connecting rods 51 are in one-to-one correspondence with the installation sleeves 62, and the connecting rods 51 vertically penetrate into the installation sleeves 62. The jack 52 has been seted up to the level on the connecting rod 51, and jack 52 is equipped with a plurality ofly along vertical direction interval on connecting rod 51, runs through on the installation sleeve 62 and has seted up a perforation 63, and bolt 61 peg graft simultaneously in perforation 63 on the installation sleeve 62 and jack 52 on the connecting rod 51, can be with the spacing fixed of guardrail 5 on upper bracket 2.

Further, one end of the lower support frame 1 along the length direction is also connected with a traction mop 7, and the traction mop 7 is used for trailer connection. The whole traction mop 7 is made of steel pipes, the traction mop 7 is hinged with the lower support frame 1, and a lock hole for connecting a trailer connecting buckle pin shaft is formed in one end, away from the lower support frame 1, of the traction mop 7. By providing the traction mop 7, an operator can connect the elevator with a trailer and quickly move the elevator in the assembly.

Further, in order to make the whole elevator stable in use, a weight box 8 is further installed on the bottom beam 15 of the lower support frame 1, and the weight box 8 is located at a side of the bottom beam 15 away from the opening.

The implementation principle of the hydraulic elevator with the landing gear cabin provided by the embodiment of the application is as follows: the operating personnel drive the contraction of cross articulated rod group through starting the cylinder to with upper support frame 2 downwardly contracted into lower support frame 1, can reduce the overall height of companion ladder, be convenient for operating personnel remove the companion ladder to the cabin in from the entry in aircraft undercarriage cabin. After moving into the cabin, the limit screw 31 is lowered by rotating the handle 32 and is supported on the ground instead of the pulley 11, so that the elevator can be effectively kept stable, the U-shaped opening of the bottom beam 15 at the bottom of the lower support frame 1 faces the inner wall of the cabin, and the U-shaped opening can be used for accommodating the fixed structure in the cabin, so that the elevator can be maximally close to the inner wall of the cabin, and the maintenance of the cabin by operators is facilitated.

It will be apparent to those skilled in the art that while preferred embodiments of the present utility model have been described, additional variations and modifications may be made to these embodiments once the basic inventive concepts are known to those skilled in the art. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A landing gear cabin hydraulic elevator, characterized in that: including lower carriage (1) and upper carriage (2), the bottom of lower carriage (1) is provided with pulley (11), be provided with parking subassembly (3) that are used for restricting lower carriage (1) and slide on lower carriage (1), upper carriage (2) are vertical sliding connection relative lower carriage (1), be provided with on lower carriage (1) and be used for driving lifting unit (4) of upper carriage (2) horizontal lift, one side of lower carriage (1) is fixed to be provided with lower ladder frame (12), one side of upper carriage (2) is fixed to be provided with upper ladder frame (22) that correspond with lower ladder frame (12), the top of upper carriage (2) is provided with standing platform (21).

2. The landing gear cabin hydraulic elevator according to claim 1, wherein the parking assembly (3) comprises a limit screw (31), a threaded sleeve (13) is vertically and fixedly connected to the lower support frame (1), the limit screw (31) is in threaded connection with the threaded sleeve (13), a handle (32) is fixedly connected to the top end of the limit screw (31), a support disc (33) is fixedly connected to the bottom end of the limit screw (31), and a plurality of groups of parking assemblies (3) are arranged on the lower support frame (1).

3. The landing gear bay hydraulic elevator according to claim 1, characterized in that the lifting assembly (4) comprises a hydraulic cylinder (41) and a cross hinge rod group, the cross hinge rod group comprises two groups of hinge arms (42) hinged to each other in the middle, the same side ends of the two groups of hinge arms (42) are hinged to the lower support frame (1) and the upper support frame (2) respectively, the other side ends of the two groups of hinge arms (42) are horizontally sliding and rotating connected with the upper support frame (2) and the lower support frame (1) respectively, the hydraulic cylinder (41) is hinged to one group of hinge arms (42), and a piston rod of the hydraulic cylinder (41) is hinged to the other group of hinge arms (42).

4. The landing gear cabin hydraulic elevator according to claim 1, wherein a plurality of guardrails (5) are arranged on the edge of the upper support frame (2) along the circumferential direction of the standing platform (21), the guardrails (5) are vertically installed on the upper support frame (2) in a lifting mode, and limiting assemblies (6) used for limiting lifting of the guardrails (5) are arranged on the upper support frame (2).

5. The landing gear cabin hydraulic elevator according to claim 4, wherein the limiting assembly (6) comprises a plug pin (61), the guardrail (5) comprises a vertical downward connecting rod (51), a mounting sleeve (62) is fixedly arranged at the edge of the upper supporting frame (2), the connecting rod (51) is arranged in the mounting sleeve (62) in a penetrating mode, a plurality of jacks (52) are arranged on the connecting rod (51) at intervals along the vertical direction, a through hole (63) is formed in the mounting sleeve (62), and the plug pin (61) is simultaneously inserted into the through hole (63) in the mounting sleeve (62) and one jack (52) in the connecting rod (51).

6. The landing gear bay hydraulic elevator according to any one of claims 1 to 5, wherein the bottom of the lower support frame (1) is provided in a "u" shape with one side open, and the upper support frame (2) is provided directly above the bottom opening of the lower support frame (1).

7. The landing gear bay hydraulic elevator according to any one of claims 1 to 5, wherein one end of the lower support frame (1) in the length direction thereof is connected with a traction mop (7), and the traction mop (7) is used for trailer connection.