CN217496557U

CN217496557U - Boarding bridge with top turnover type guardrail

Info

Publication number: CN217496557U
Application number: CN202221072721.XU
Authority: CN
Inventors: 胡克明; 张子健
Original assignee: China Civil Aviation Technical Equipment Co ltd
Current assignee: China Civil Aviation Technical Equipment Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-09-27
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses a boarding bridge with convertible guardrail in top, including the flexible passageway in front end passageway and the front end passageway of a plurality of can take in, flexible passageway's top is provided with can be lodging the state and erect the upset guardrail that switches between the state, is provided with between flexible passageway and the upset guardrail and can lock the guardrail that so that the upset guardrail keeps the locking device of erectting the state, and front end passageway's top is provided with the third guardrail. When maintenance personnel need to work on the top surface of the boarding bridge, the overturning guardrail is erected, and after the work is finished, the overturning guardrail is rotated to a falling state, so that the boarding bridge is safe and reliable.

Description

Boarding bridge with top overturning type guardrail

Technical Field

The utility model relates to a boarding bridge technical field especially relates to a boarding bridge with convertible guardrail in top.

Background

The top of the boarding bridge is away from the ground by a certain distance, so that the risk of falling exists. Referring to fig. 1, in all existing boarding bridges, a protection scheme 9 that safety belt suspension ropes are respectively arranged in a front end channel 1, a middle channel 2 and a tail end channel 3 of the boarding bridge is adopted, and a person working at the top of the boarding bridge suspends a safety belt on the safety belt suspension ropes to prevent the person from falling off when stepping on the air.

Firstly, in order to not affect the extension and retraction of the boarding bridge, safety belt suspension ropes on a middle channel and a tail end channel can only be arranged at positions slightly higher than the top surface, and the safety belt suspension ropes can be suspended in the air after a worker is out of the ground, so that the consequences are terrorist, and the safety belt suspension ropes cannot fall to the ground, but also can be subjected to certain impact force in the falling process, and can cause physical and psychological damage; in addition, the safety belt hanging rope is divided into three discontinuous ropes which are respectively arranged at the tops of the corresponding channels, when a worker walks from the top of one channel to the top of the other channel, the worker needs to unfasten the safety rope and then buckles the other safety belt hanging rope, the safety belt hanging rope is inconvenient to use, and the risk of falling exists in the process of unfastening the safety rope.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a boarding bridge with convertible guardrail in top.

The utility model discloses a solve its technical problem and the technical scheme who adopts is:

the utility model provides a boarding bridge with convertible guardrail in top, includes that front end passageway and a plurality of can be taken in telescopic channel in the front end passageway, telescopic channel's top is provided with the upset guardrail that can switch between the state of falling and the state of erectting, be provided with between telescopic channel and the upset guardrail and can with the locking device of upset guardrail locking so that the upset guardrail keeps the state of erectting, front end passageway's top is provided with the third guardrail.

As a further optimization scheme of the above technical scheme, the number of the telescopic channels is two, the two telescopic channels are respectively retractable intermediate channels in the front end channel and retractable tail end channels in the intermediate channels, the turnover guardrail comprises a first guardrail arranged at the top of the tail end channel and a second guardrail arranged at the top of the intermediate channels, the locking device comprises a tail end locking device for locking the first guardrail and an intermediate locking device for locking the second guardrail, the first guardrail is in a falling state and enables the tail end channel to be retractable in the intermediate channels, and the second guardrail is in a falling state and enables the intermediate channels to be retractable in the front end channels.

As a further optimization scheme of the above technical scheme, an edge at the top of the tail end channel is provided with a first fixing seat, the first fixing seat is provided with a first side plate, and the lower part of the first guardrail is provided with a first vertical rod hinged to the first side plate.

As a further optimization scheme of the above technical scheme, the tail end locking device includes an erected positioning hole formed in the first side plate and a spring positioning pin formed in the first vertical rod, and the spring positioning pin is pushed into the erected positioning hole when the first guardrail rotates to an erected state.

As a further optimization scheme of the above technical scheme, a first anti-tilt baffle is further arranged on the first fixing seat, and one side of the first vertical rod abuts against the first anti-tilt baffle when the first guardrail rotates to the vertical state.

As a further optimization scheme of the above technical scheme, a horizontal positioning hole is further formed in the first side plate, and the spring positioning pin is pushed into the horizontal positioning hole when the first guardrail rotates to a falling state.

As a further optimization scheme of the above technical solution, the boarding bridge further includes a controller and a driving device capable of driving the front end tunnel and the middle tunnel to move telescopically relative to the tail end tunnel, a guardrail state detection device capable of detecting a state of the first guardrail is disposed at the top of the tail end tunnel, a guardrail state detection device capable of detecting a state of the second guardrail is disposed at the top of the middle tunnel, and both the guardrail state detection device and the driving device are connected to the controller.

As a further optimization scheme of the above technical scheme, a second fixing seat is arranged at the edge of the top of the middle channel, a second side plate is arranged on the second fixing seat, and a second vertical rod hinged to the second side plate is arranged on the lower portion of the second guardrail.

As a further optimization scheme of the above technical solution, the middle locking device includes an erected positioning hole disposed on the second side plate and a spring positioning pin disposed on the second vertical rod, and the spring positioning pin is pushed into the erected positioning hole when the second guardrail rotates to an erected state.

As a further optimization scheme of the above technical scheme, a second anti-tilt baffle is further arranged on the second fixing seat, and one side of the second vertical rod abuts against the second anti-tilt baffle when the second guardrail rotates to the vertical state.

As a further optimization scheme of the above technical scheme, a horizontal positioning hole is further formed in the second side plate, and the spring positioning pin is pushed into the horizontal positioning hole when the second guardrail rotates to a falling state.

The utility model has the advantages that:

firstly, when maintenance personnel need to work on the top surface of the boarding bridge, the boarding bridge is extended to the position where the first guardrail and the second guardrail can be erected, then the first guardrail and the second guardrail are erected, after the work is finished, the first guardrail and the second guardrail are rotated to a falling state, and the boarding bridge is restored to a telescopic moving state.

Second, first guardrail and second guardrail are the upset guardrail, install guardrail state detection device additional at the top of bridge, set up to on the control logic of boarding bridge: only when all the turnover guardrails are in a falling state, the driving device of the boarding bridge can operate. The damage of the guardrail garbage boarding bridge caused by the accidental movement of the boarding bridge when the turnover guardrail is in the vertical state can be avoided.

Drawings

Fig. 1 is a schematic structural view of a prior art boarding bridge;

fig. 2 is a schematic structural view of a state of the boarding bridge of the present invention;

fig. 3 is a schematic structural view of another state of the boarding bridge of the present invention;

FIG. 4 is a schematic view of the construction of the first guard rail;

FIG. 5 is a schematic view of the lower end of the first vertical rod;

FIG. 6 is a schematic view of the connection structure of the first guardrail with the tail end channel in a falling state;

FIG. 7 is a schematic view of the lower end of the second vertical rod;

fig. 8 is a schematic view of the connection structure of the second guard rail with the middle passage in the falling state.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear …) in the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 8, the utility model provides a boarding bridge with convertible guardrail in top, including the flexible passageway in front end passageway 1 and a plurality of can insert front end passageway 1, the top of flexible passageway is provided with can be lodging the state and erect the upset guardrail that the state was switched over in the rotation, is provided with between flexible passageway and the upset guardrail and can lock the guardrail that so that the upset guardrail keeps the locking device of erecting the state, and the top of front end passageway 1 is provided with third guardrail 6. The third guard rail 6 can be arranged either fixedly or in a reversible manner, wherein a fixed arrangement is preferred.

The number of telescopic channels is typically 1-3, with 2 being preferred.

The utility model discloses an in the preferred scheme, the quantity of flexible passageway is two, two flexible passageways are middle passageway 2 in can following into front end passageway 1 and tail end passageway 3 in can following into middle passageway 2 respectively, the upset guardrail is including setting up in the first guardrail 4 at tail end passageway 3 top and setting up in the second guardrail 5 at middle passageway 2 top, locking device is including the tail end locking device who is used for locking first guardrail 4 and the middle locking device who is used for locking second guardrail 5, first guardrail 4 makes in tail end passageway 3 can take in middle passageway 2 when falling down the state, second guardrail 5 makes in middle passageway 2 can take in front end passageway 1 when falling down the state.

When maintenance personnel need to work on the top surface of the boarding bridge, the boarding bridge is extended to the position where the first guardrail 4 and the second guardrail 5 can stand up, then the first guardrail 4 and the second guardrail are erected, after the work is finished, the guardrails are rotated to a falling state, and the boarding bridge is restored to a telescopic moving state.

If it is desired that the boarding bridge is not extended to the longest and the turning fence is erected, the first fence 4 or the second fence 5 may be divided into two or more sections.

Referring to fig. 4 to 6, a first fixing seat 31 is disposed at an edge of a top of the tail end channel 3, a first side plate 32 is disposed on the first fixing seat 31, and a first vertical rod 41 hinged to the first side plate 32 is disposed at a lower portion of the first guardrail 4. Preferably, the number of the first side plates 32 is 2, and the first side plates 32 are spaced apart from each other, and the first vertical rod 41 is provided with a pin hole 84, and is hinged between the 2 first side plates 32 through a pin 85.

The utility model discloses an among the preferred scheme, tail end locking device is including setting up erect the locating hole 82 on first curb plate 32 and setting up spring locating pin 81 on first montant 41, and first guardrail 4 rotates to and makes spring locating pin 81 push into when erectting the state and erects locating hole 82.

The first fixing seat is further provided with a first anti-tilt baffle 33, and one side of the first vertical rod 41 abuts against the first anti-tilt baffle 33 when the first guardrail 4 rotates to the vertical state. The angle C1 between the first anti-roll bar 33 and the horizontal plane is the angle of rotation for switching the first guard rail 4 between the erected condition and the collapsed condition, and the angle C1 is preferably 90-100 degrees. The angle C1 is slightly greater than 90 degrees to ensure that the first fence 4 remains in an upright position under the dual action of the trailing end locking means and its own weight.

Further, a horizontal positioning hole 83 is further formed in the first side plate 32, when the first guardrail 4 rotates to a collapse state, the spring positioning pin 81 is pushed into the horizontal positioning hole 83, and the spring positioning pin 81 is matched with the horizontal positioning hole 83, so that the first guardrail 4 can be kept in the collapse state, and the first guardrail 4 is prevented from swinging due to vibration generated when the boarding bridge moves in a telescopic manner. The spring positioning pin 81 includes a spring and a positioning pin which are located in the first vertical rod 41, the spring may be a plate spring or a compression spring, the positioning pin is in a state of protruding out of the side surface of the guardrail in a natural state by means of the elastic force of the plate spring or the compression spring, the front end of the positioning pin is a curved surface, so that when the guardrail is erected or laid down, the overturning moment can generate a component force on the curved surface of the positioning pin along the axial direction of the pin, when the component force is greater than the elastic force, the positioning pin retracts, and when the positioning pin is rotated to the position of the positioning hole, the positioning pin resets under the action of the elastic force.

Referring to fig. 4 to 6, a second fixing seat 21 is disposed at an edge of the top of the middle channel 2, a second side plate 22 is disposed on the second fixing seat 21, and a second vertical rod 51 hinged to the second side plate 22 is disposed at the lower portion of the second guardrail 5. Preferably, the number of the second side plates 22 is 2, and the second side plates 22 and the second vertical rod 51 are arranged at intervals, the second vertical rod 51 is provided with an axle pin hole 84, and the second vertical rod 51 is hinged between the 2 second side plates 22 through an axle pin 85.

In a preferred embodiment of the present invention, the middle locking device includes a vertical positioning hole 82 formed on the second side plate 22 and a spring positioning pin 81 formed on the second vertical rod 51, and the second guard rail 5 rotates to a vertical state to push the spring positioning pin 81 into the vertical positioning hole 82.

A second anti-tilt baffle 23 is further arranged on the second fixing seat, and one side of a second vertical rod 51 is abutted to the second anti-tilt baffle 23 when the second guardrail 5 rotates to the vertical state. The angle C1 between the second anti-roll bar 23 and the horizontal plane is the rotation angle for the second guard rail 5 to switch between the upright position and the falling position, and the angle C1 is preferably 90-100 degrees. The angle C1 is slightly greater than 90 degrees to ensure that the secondary rail 5 remains in the erected condition under the dual action of the intermediate locking means and its own weight.

Further, the second side plate 22 is further provided with a horizontal positioning hole 83, when the second guardrail 5 rotates to the collapse state, the spring positioning pin 81 is pushed into the horizontal positioning hole 83, and the spring positioning pin 81 is matched with the horizontal positioning hole 83, so that the second guardrail 5 can be kept in the collapse state, and the second guardrail 5 is prevented from swinging due to vibration generated when the boarding bridge moves in a telescopic manner. The spring positioning pin 81 includes a spring and a positioning pin which are located in the second vertical rod 51, the spring may be a plate spring or a compression spring, the positioning pin is in a state of protruding out of the side surface of the guardrail in a natural state by means of the elastic force of the plate spring or the compression spring, the front end of the positioning pin is a curved surface, so that when the guardrail is erected or laid down, the overturning moment can generate a component force on the curved surface of the positioning pin along the axial direction of the pin, when the component force is greater than the elastic force, the positioning pin retracts, and when the positioning pin is rotated to the position of the positioning hole, the positioning pin resets under the action of the elastic force.

The bridge also comprises a controller and drive means capable of driving the fore tunnel 1 and the intermediate tunnel 2 to move telescopically with respect to the aft tunnel 3. As a further improvement of the above scheme, a guardrail state detection device 7 capable of detecting the state of the first guardrail 4 is arranged at the top of the tail end channel 3, a guardrail state detection device 7 capable of detecting the state of the second guardrail 5 is arranged at the top of the middle channel 2, and both the guardrail state detection device 7 and the driving device are connected with the controller. First guardrail 4 and second guardrail 5 are the upset guardrail, install guardrail state detection device 7 additional at the top of bridge, set up to on the control logic of boarding bridge: only when all the turnover guardrails are in a falling state, the driving device of the boarding bridge can operate. The damage of the guardrail garbage boarding bridge caused by the accidental movement of the boarding bridge when the turnover guardrail is in the vertical state can be avoided.

The guardrail state detection device 7 can adopt a photoelectric sensor, a Hall switch, a travel switch and other devices. The driving device adopts a motor as a power source, and drives each channel of the boarding bridge to do telescopic movement through a linkage mechanism consisting of a steel wire rope, a pulley and the like.

The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The boarding bridge with the top turnover type guardrail comprises a front end channel (1) and a plurality of telescopic channels capable of being retracted into the front end channel (1), and is characterized in that the top of each telescopic channel is provided with a turnover guardrail capable of being switched between a falling state and a standing state, a locking device capable of locking the turnover guardrail to enable the turnover guardrail to keep the standing state is arranged between each telescopic channel and each turnover guardrail, and a third guardrail (6) is arranged at the top of the front end channel (1).

2. The boarding bridge with tip-over fences of claim 1, wherein, the number of the telescopic channels is two, the two telescopic channels are respectively a middle channel (2) capable of being retracted into the front end channel (1) and a tail end channel (3) capable of being retracted into the middle channel (2), the overturning guardrail comprises a first guardrail (4) arranged at the top of the tail end channel (3) and a second guardrail (5) arranged at the top of the middle channel (2), the locking device comprises a tail end locking device used for locking the first guardrail (4) and a middle locking device used for locking the second guardrail (5), the first guardrail (4) is in a falling state, the tail end channel (3) can be collected into the middle channel (2), and the second guardrail (5) is in a falling state, the middle channel (2) can be collected into the front end channel (1).

3. The boarding bridge with a top turnover type guardrail according to claim 2 is characterized in that a first fixed seat (31) is arranged at the edge of the top of the tail end channel (3), a first side plate (32) is arranged on the first fixed seat (31), and a first vertical rod (41) hinged with the first side plate (32) is arranged at the lower part of the first guardrail (4).

4. The boarding bridge with the flip-top guardrail according to claim 3, wherein the tail end locking device comprises an upright positioning hole (82) formed in the first side plate (32) and a spring positioning pin (81) formed on the first vertical rod (41), and the spring positioning pin (81) is pushed into the upright positioning hole (82) when the first guardrail (4) is rotated to the upright state.

5. A boarding bridge with top-turnover guardrail according to claim 4, characterized in that a first anti-roll bar (33) is also arranged on the first fixed seat, and one side of a first vertical rod (41) abuts against the first anti-roll bar (33) when the first guardrail (4) rotates to the upright state.

6. The boarding bridge with the flip-top guardrail according to claim 4, characterized in that the first side plate (32) is further provided with a horizontal positioning hole (83), and the spring positioning pin (81) is pressed into the horizontal positioning hole (83) when the first guardrail (4) rotates to a falling state.

7. The boarding bridge with a top-turnover guardrail according to claim 2 is characterized by further comprising a controller and a driving device capable of driving the front tunnel (1) and the middle tunnel (2) to move telescopically relative to the tail tunnel (3), wherein a guardrail state detection device (7) capable of detecting the state of the first guardrail (4) is arranged at the top of the tail tunnel (3), a guardrail state detection device (7) capable of detecting the state of the second guardrail (5) is arranged at the top of the middle tunnel (2), and the guardrail state detection device (7) and the driving device are both connected with the controller.

8. The boarding bridge with a top turnover type guardrail according to claim 2, characterized in that a second fixed seat (21) is arranged at the edge of the top of the middle channel (2), a second side plate (22) is arranged on the second fixed seat (21), and a second vertical rod (51) hinged with the second side plate (22) is arranged at the lower part of the second guardrail (5).

9. The boarding bridge with the flip-top guardrail as claimed in claim 8, wherein the middle locking device comprises an upright positioning hole (82) formed on the second side plate (22) and a spring positioning pin (81) formed on the second vertical rod (51), and the spring positioning pin (81) is pushed into the upright positioning hole (82) when the second guardrail (5) is rotated to the upright state.

10. The boarding bridge with the convertible top guardrail according to claim 9, characterized in that a second anti-roll baffle (23) is further disposed on the second fixed seat, and one side of a second vertical rod (51) abuts against the second anti-roll baffle (23) when the second guardrail (5) rotates to the upright state.