Safety protection device for boarding bridge

Abstract

The safety protection device for the boarding bridge comprises a driving mechanism and a guardrail, the driving mechanism is arranged on one side of an airport pick-up frame, the guardrail is driven by the driving mechanism to be transversely arranged at an opening of the airport pick-up frame and can be lifted in a rotating mode, and the safety protection device for the boarding bridge has the advantages of being simple in structure, capable of achieving automatic opening and closing, high in protection safety level and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of passenger boarding bridges, and particularly relates to a safety protection device for a boarding bridge. Background Technique

[0002] According to civil aviation standards, when the protective door at the aircraft docking port of the boarding bridge is opened for operation, a protection device (such as a cable barrier, safety belt, etc.) should be set between the aircraft and the protective door at the docking port. To prevent people from falling, before the boarding bridge is successfully docked with the aircraft (including when the boarding bridge is in the home position), the protection device should always be horizontally placed at the opening position of the docking port.

[0003] After retrieval, CN2016112632374 discloses a retractable safety protection device for an aircraft docking port, which includes a blocking device and a retractable device. The blocking device includes a movable column, a floor nut assembly, a protective gear slide rod, and a flexible blocking net. The floor nut assembly is located on one side of the docking port door frame of the boarding bridge, and the retractable device is located on the other side of the docking port door frame. The movable column is installed on the floor nut assembly, and the protective gear slide rod is slidably installed in the retractable device. The retractable device includes an elastic device, an upper slideway and a lower slideway arranged in parallel. The upper slideway, the lower slideway and the elastic device are all installed on the docking port of the boarding bridge. Both ends of the protective gear slide rod are rotatably installed with rollers, and both ends of the protective gear slide rod are slidably installed on the upper slideway and the lower slideway respectively through the rollers. The output end of the elastic device is connected to the protective gear slide rod; the blocking device is set to close the docking port door frame, and the retractable device is used to retract the blocking device when it is not in use.

[0004] The deficiencies of this structure are as follows: First, the blocking device needs to be manually pulled out and retracted, which cannot achieve automation. Manual operation is troublesome and cannot achieve driverless operation. Second, the movement direction of the blocking device is uncontrollable, and there is a risk of rotating towards the aircraft side and damaging the aircraft cabin door. Third, due to the flexible structure of the blocking net, the rigidity is poor and the protection effect is poor, and there is still a risk of falling. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art, and provide a safety protection device for a boarding bridge with a simple structure, automatic opening and closing, and high protection safety level.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A safety protection device for a boarding bridge, characterized in that: it includes a driving mechanism and a guardrail. The driving mechanism is arranged on one side of the docking port frame, and the guardrail is driven by the driving mechanism to be horizontally placed at the opening of the docking port frame and can be rotated and lifted.

[0008] Automatic protection is achieved without manual operation, and the rotation direction of the guardrail can also ensure that the aircraft door will not be damaged.

[0009] The guardrail of the utility model comprises an active rod, a driven rod and a connecting rod. The active rod and the driven rod are arranged opposite to each other. A plurality of connecting rods are arranged between the active rod and the driven rod. One end of the connecting rod is hinged to the active rod, and the other end is hinged to the driven rod.

[0010] The structure of the guardrail can not only play a good protective role, but the hinged structure of the connecting rod, the active rod and the driven rod can make the guardrail occupy less space after rotating upwards, without affecting the passage of pedestrians.

[0011] The lower end of at least one connecting rod of the utility model extends downward. When the guardrail is placed horizontally at the opening of the receiving port frame, the bottom of the connecting rod rests on the ground of the receiving port frame, thereby ensuring the stability of the guardrail protection.

[0012] The driving mechanism of the utility model adopts a linear actuator, one end of the driving mechanism is hinged to the machine port frame, and the other end is hinged to the active rod, and the active rod and the driven rod are respectively rotated with the machine port frame;

[0013] By extending or retracting the linear actuator, the active rod is driven to rotate around the receiving port frame, and the active rod drives the driven rod and the connecting rod to rotate together, so that the active rod and the driven rod are laterally blocked at the opening of the receiving port frame for protection or the guardrail is rotated upward as a whole to open the opening of the receiving port frame for pedestrians to pass through.

[0014] The linear actuator of the utility model adopts an electric push rod or a pneumatic cylinder;

[0015] The linear actuator is equipped with an extended position sensor and a retracted position sensor; the provision of the extended position sensor and the retracted position sensor facilitates the judgment of the guardrail status.

[0016] The machine receiving frame of the utility model is provided with a main rotating shaft on one side of the driving mechanism, and the active rod is rotatably matched with the main rotating shaft;

[0017] A slave shaft is provided on one side of the driving mechanism on the receiving port frame, and a pull rod is provided on one side of the driven rod. One end of the pull rod is rotated with the slave shaft, and the other end is hinged to the driven rod. The setting of the pull rod can not only ensure the overall stability of the guardrail rotation, but also further ensure that the guardrail can be in a vertical state when rotated upward, without affecting the passage of pedestrians.

[0018] The utility model further includes a limiting bracket, which is arranged on the other side of the receiving port frame. When the guardrail is driven by the driving mechanism to rotate downward and horizontally at the opening of the receiving port frame, the end of the active rod or the driven rod away from the driving mechanism is limited by the limiting bracket.

[0019] The limiting bracket adopts a U-shaped groove structure, and the driving rod or the driven rod is stuck in the U-shaped groove, ensuring the stability of the guardrail protection.

[0020] On the U-shaped groove of the present utility model, there are also provided a first guiding inclined plate and a second guiding inclined plate. The upper end of one side plate of the U-shaped groove is connected to the lower end of the first guiding inclined plate, and the upper end of the other side plate is connected to the lower end of the second guiding inclined plate. The first guiding inclined plate and the second guiding inclined plate are arranged oppositely, and the first guiding inclined plate and the second guiding inclined plate are respectively inclined inwards from top to bottom. The arrangements of the first guiding inclined plate and the second guiding inclined plate play a guiding role, facilitating the driving rod or the driven rod to be stuck in the U-shaped groove along the guiding inclined plate when the guardrail rotates and falls.

[0021] The guardrail of the present utility model is made of aluminum profiles, rectangular tubes or steel plates, ensuring the rigidity of the guardrail and the protection effect.

[0022] The driving mechanism of the present utility model is arranged in the box body, and the box body is fixed on one side of the access port frame. A left opening groove for the driving rod and the driven rod to pass through is provided on the left side plate of the box body, and an upper opening groove communicated with the left opening groove is provided on the upper cover plate of the box body.

[0023] The setting of the box body plays a role in waterproofing and dustproofing, and the settings of the left opening groove and the upper opening groove ensure that the rotation of the guardrail is not affected.

[0024] The beneficial effects of the present utility model are as follows: automatic protection is realized, without manual operation, and the rotation direction of the guardrail can also ensure that the aircraft cabin door will not be damaged. The structure of the guardrail can not only play a good protection role, but also the structure of the connecting rod hinged with the driving rod and the driven rod can make the guardrail occupy a small space after rotating upwards, without affecting the passage of pedestrians. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the cooperation structure of the safety protection device in the closed state and the access port frame.

[0026] Figure 2 It is the front view of the cooperation of the safety protection device in the closed state and the access port frame (hiding the front cover plate of the box body).

[0027] Figure 3 It is a schematic diagram of the structure of the safety protection device in the closed state (hiding the front cover plate of the box body).

[0028] Figure 4 It is a schematic diagram of the internal structure of the box body.

[0029] Figure 5 It is a schematic diagram of the guardrail structure.

[0030] Figure 6 It is a schematic diagram of the limiting bracket structure.

[0031] Figure 7 It is a schematic structural diagram of the open state of the safety protection device.

[0032] Figure 8 It is a schematic structural diagram of the cooperation between the open state of the safety protection device and the access port frame.

[0033] Reference numerals: access port frame - 1;

[0034] Box body - 2, left side plate - 201, left opening groove - 2011, right side plate - 202, upper cover plate - 203, upper opening groove - 2031, front cover plate - 204, push rod mounting bracket - 205, pin shaft - 206, push rod connection bracket - 207, secondary rotating shaft - 208, main rotating shaft - 209, wire routing fixing bracket - 210;

[0035] Electric push rod - 3;

[0036] Guardrail - 4, active rod - 401, driven rod - 402, connecting rod - 403, connecting rod pin shaft - 404;

[0037] Limit bracket - 5, mounting base plate - 501, limit U - shaped plate - 502, guide inclined plate 1 - 5031, guide inclined plate 2 - 5032;

[0038] Pull rod - 6;

[0039] Pull rod pin shaft - 7. Specific implementation mode

[0040] The present utility model will be described below with reference to the accompanying drawings and embodiments.

[0041] Embodiment 1:

[0042] As shown in the accompanying drawings, a safety protection device for a boarding bridge includes a driving mechanism and a guardrail. The driving mechanism is arranged on one side of the access port frame 1, and the guardrail 4 is driven by the driving mechanism to lie across the opening of the access port frame 1 and can be rotated and lifted upward;

[0043] It realizes automatic protection without manual operation, and the rotation direction of the guardrail can also ensure that the aircraft cabin door will not be damaged.

[0044] In this embodiment, the driving mechanism is arranged on the right side of the access port frame 1.

[0045] The guardrail 4 includes an active rod 401, a driven rod 402 and a connecting rod 403. The active rod 401 and the driven rod 402 are arranged oppositely, and a plurality of connecting rods 403 are arranged at intervals between the active rod 401 and the driven rod 402. One end of the connecting rod 403 is hinged to the active rod 401, and the other end is hinged to the driven rod 402;

[0046] The structure of the guardrail 4 can not only play a good protective role, but also the structure in which the connecting rod 403 is hinged with the active rod 401 and the driven rod 402 can make the distance between the active rod and the driven rod close after the guardrail is rotated upward, occupying a small space, and not affecting the passage of pedestrians. At the same time, when the guardrail is rotated horizontally at the opening of the receiving port frame, the vertical setting of the connecting rod further ensures the protective effect.

[0047] In this embodiment, the lower end of at least one connecting rod 403 extends downward. When the guardrail is placed horizontally at the opening of the receiving port frame, the bottom of at least one connecting rod 403 rests on the ground of the receiving port frame 1 to ensure the stability of the guardrail protection. A buffer pad or elastic support foot is fixed to the bottom of the connecting rod 403 to play a buffering role.

[0048] In this embodiment, when the guardrail 4 is placed across the opening of the receiving port frame 1 , the active rod 401 is located at the bottom and the driven rod 402 is located at the top.

[0049] The driving mechanism adopts a linear actuator, one end of which is hinged to the machine port frame 1, and the other end is hinged to the active rod 401, and the active rod 401 and the driven rod 402 are respectively rotated with the machine port frame 1;

[0050] By extending or retracting the linear actuator, the active rod 401 is driven to rotate around the receiving port frame 1, and the active rod 401 drives the driven rod 402 and the connecting rod 403 to rotate together, so that the active rod 401 and the driven rod 402 are laterally blocked at the opening of the receiving port frame 1 for protection or the guardrail is rotated upward as a whole to open the opening of the receiving port frame 1 for pedestrians to pass through.

[0051] The linear actuator adopts an electric push rod 3 or a cylinder; the linear actuator is equipped with an extended position sensor and a retracted position sensor; the provision of the extended position sensor and the retracted position sensor facilitates the judgment of the guardrail status.

[0052] In this embodiment, the driving mechanism adopts an electric push rod 3, and the electric push rod 3 is connected to a controller. The controller can be a PLC controller or a controller developed based on an MCU.

[0053] The driving mechanism in this embodiment is arranged in the box body 2, and the box body 2 is fixed to the right side of the receiving port frame 1; the box body 2 also includes a left side plate 201, a right side plate 202, an upper cover plate 203, a bottom plate, a front cover plate 204 and a back plate, and the back plate of the box body 2 is fixed to the receiving port frame 1, the front cover plate 204 and the back plate are arranged oppositely front and back, the left side plate 201 and the right side plate 202 are arranged oppositely left and right, the upper cover plate 203 and the bottom plate are arranged oppositely up and down, the rear ends of the upper cover plate 203 and the bottom plate are fixedly connected to the back plate respectively, and the upper end of the right side plate 202 is fixed to the right end of the upper cover plate 203. It is fixedly connected, with the lower end fixedly connected to the right end of the bottom plate, the rear end fixedly connected to the right end of the back plate, the lower end of the left side plate 201 fixedly connected to the left end of the bottom plate, the rear end fixedly connected to the left end of the back plate, and the upper end forms a left opening slot 2011 for the active rod 401 and the driven rod 402 to pass through, and the left end of the upper cover plate 203 forms an upper opening slot 2031 connected to the left opening slot 2011, and the front cover plate 204 can be opened for easy maintenance; the setting of the box body 2 plays a role in waterproofing and dustproofing, and the setting of the left opening slot 2011 and the upper opening slot 2031 ensures that the rotation of the guardrail is not affected.

[0054] In this embodiment, the back plate of the box body 2 is fixed to the machine port frame by bolts, which is convenient for installation and disassembly.

[0055] A main rotating shaft 209 and a slave rotating shaft 208 are fixed to the back plate of the box body 2. In this embodiment, since the active rod 401 is arranged at the bottom, the main rotating shaft 209 is fixed below the back plate and is located on the left side of the electric push rod 3. A main rotating shaft hole is opened on the active rod 401 near the right end of the active rod 401. The main rotating shaft 209 is inserted into the main rotating shaft hole. The active rod 401 rotates in conjunction with the main rotating shaft 209.

[0056] The slave shaft 208 is fixed above the back plate, and a pull rod 6 is provided on the right side of the driven rod 402. A slave shaft hole is opened at one end of the pull rod 6, and the slave shaft 208 is inserted into the slave shaft hole. The right end of the pull rod 6 rotates with the slave shaft 208, and the left end is hinged to the right end of the driven rod 402 through the pull rod pin. The setting of the pull rod 6 can not only ensure the overall stability of the guardrail rotation, but also further ensure that the guardrail can be in a vertical state when it rotates upward, without affecting the passage of pedestrians.

[0057] In this embodiment, a push rod connecting bracket 207 is fixed to the right end of the active rod 401, the push rod end of the electric push rod 3 is hinged to the push rod connecting bracket 207 via the pin shaft 206, and the shell end of the electric push rod 3 is hinged to the push rod mounting bracket 205 via the pin shaft, and the push rod mounting bracket 205 is fixed to the back panel of the box.

[0058] A wiring fixing frame 210 is also fixed on the back plate of the box body 2 to facilitate fixing the cables.

[0059] In this embodiment, a limit bracket 5 is fixed to the left side of the boarding gate frame 1. When the guardrail 4 is driven by a driving mechanism to rotate downward and lie horizontally at the opening of the boarding gate frame, the end of the active rod or the driven rod away from the driving mechanism is limited by the limit bracket.

[0060] In this embodiment, a limit bracket 5 is provided on the left side of the driven rod 402. The limit bracket 5 includes a mounting base plate 501 and a limit U-shaped plate 502. The limit U-shaped plate forms a U-shaped groove for the driven rod to be inserted into. The mounting base plate 501 is fixed to the left side of the boarding gate frame 1 by bolts or welding, and the limit U-shaped plate 502 is welded and fixed to the mounting base plate 501. The driven rod 402 is stuck in the limit U-shaped plate 502 to ensure the stability of the guardrail protection.

[0061] A buffer pad is provided on the bottom plate of the limit U-shaped plate 502, which plays a buffering role when limiting the guardrail 4 and protects the guardrail.

[0062] The limit U-shaped plate 502 is also provided with a guiding inclined plate 1 5031 and a guiding inclined plate 2 5032. The upper end of one side plate of the limit U-shaped plate 502 is connected to the lower end of the guiding inclined plate 1 503, and the upper end of the other side plate is connected to the lower end of the guiding inclined plate 2 5032. The guiding inclined plate 1 5031 and the guiding inclined plate 2 5032 are arranged oppositely, and the guiding inclined plate 1 5031 and the guiding inclined plate 2 5032 are respectively inclined downward and inward. The setting of the guiding inclined plate 1 5031 and the guiding inclined plate 2 5032 plays a guiding role, facilitating the driven rod 402 to be stuck in the limit U-shaped plate 502 along the guiding inclined plate when the guardrail rotates and falls.

[0063] A limit bracket 5 can also be provided on the left side of the active rod 401 as needed. During protection, the left end of the active rod 401 is stuck in the limit U-shaped plate 502, or limit brackets 5 are provided on the left sides of both the active rod and the driven rod.

[0064] The guardrail 4 is made of aluminum profiles or rectangular tubes or steel plates to ensure the rigidity of the guardrail and the protection effect.

[0065] When the utility model is in use:

[0066] 1. When the boarding bridge is not picking up passengers, the guardrail 4 is in the closed mode, lying horizontally at the opening of the boarding gate frame 1 to play a protective role (as shown in...), and at this time, the push rod of the electric push rod is in the retracted state. Figure 1 shown), and at this time, the push rod of the electric push rod is in the retracted state.

[0067] 2. When the boarding bridge performs the operation of picking up passengers, the controller controls the electric push rod 3 to work. The push rod of the electric push rod 3 extends, driving the active rod 401 to rotate around the main rotating shaft 209. The active rod 401 is lifted upward, driving the driven rod 402 to disengage from the limiting U-shaped plate 502. The driven rod 402 is lifted upward to reach the specified position. The extended-in-place sensor sends a detection signal to the controller, and the controller controls the electric push rod 3 to stop working. The guardrail forms a vertical state as a whole (as Figure 8 shown);

[0068] 3. After the operation of picking up passengers is completed, the controller controls the electric push rod 3 to work. The push rod of the electric push rod 3 retracts, driving the active rod 401 to rotate downward. The active rod 401 drives the driven rod 402 to rotate downward to reach the specified position. The retracted-in-place sensor sends a detection signal to the controller, and the controller controls the electric push rod to stop working. The guardrail lies horizontally at the opening of the passenger pick-up frame 1 as a whole. The left end of the driven rod 402 is stuck in the limiting U-shaped plate 502, and the lower end of the connecting rod 403 abuts against the bottom plate of the passenger pick-up frame 1.

[0069] Embodiment 2:

[0070] The difference between Embodiment 2 and Embodiment 1 is that the active rod 401 can be arranged above the driven rod 402. The main rotating shaft 209 is fixed above the rear back plate of the box body, and the secondary rotating shaft 208 is fixed below the rear back plate of the box body.

[0071] When the boarding bridge is not picking up passengers, the guardrail 4 lies horizontally at the opening of the passenger pick-up frame 1. At this time, the push rod of the electric push rod 3 is in the extended state;

[0072] When the boarding bridge performs the operation of picking up passengers, the guardrail 4 forms a vertical state as a whole. At this time, the push rod of the electric push rod 3 is in the retracted state.

Claims

1. A safety protection device for a boarding bridge, characterized in that: It includes a driving mechanism and a guardrail, wherein the driving mechanism is arranged on one side of the receiving port frame, and the guardrail is driven by the driving mechanism to be horizontal at the opening of the receiving port frame and can be rotated and lifted; The guardrail includes an active rod, a driven rod and a connecting rod, wherein the active rod and the driven rod are arranged opposite to each other, and a plurality of connecting rods are arranged between the active rod and the driven rod, wherein one end of the connecting rod is hinged to the active rod and the other end is hinged to the driven rod; The driving mechanism adopts a linear actuator, one end of the driving mechanism is hinged to the machine port frame, and the other end is hinged to the active rod, and the active rod and the driven rod are respectively rotatably matched with the machine port frame.

2. The safety protection device for an air bridge according to claim 1, characterized in that: The lower end of at least one connecting rod extends downward, and when the guardrail is placed across the opening of the aircraft receiving port frame, the bottom of the connecting rod rests on the ground of the aircraft receiving port frame.

3. The safety protection device for an air bridge according to claim 1 or 2, characterized in that: The linear actuator adopts an electric push rod or an air cylinder; the linear actuator is equipped with an extended position sensor and a retracted position sensor.

4. The safety protection device for a boarding bridge according to claim 1 or 2, characterized in that: The receiving port frame is provided with a main rotating shaft on one side of the driving mechanism, and the active rod is rotatably matched with the main rotating shaft; A slave shaft is provided on one side of the driving mechanism on the receiving port frame, a pull rod is provided on one side of the driven rod, one end of the pull rod is rotatably matched with the slave shaft, and the other end is hinged to the driven rod.

5. The safety protection device for an air bridge according to claim 1 or 2, characterized in that: It also includes a limiting bracket, which is arranged on the other side of the receiving port frame. When the guardrail is driven by the driving mechanism to rotate downward and horizontally at the opening of the receiving port frame, the end of the active rod or the driven rod away from the driving mechanism is limited by the limiting bracket; The limiting bracket adopts a U-shaped groove structure, and the active rod or the driven rod is stuck in the U-shaped groove.

6. The safety protection device for an air bridge according to claim 5, characterized in that: The U-shaped groove is also provided with a guide inclined plate 1 and a guide inclined plate 2. The upper end of one side plate of the U-shaped groove is connected to the lower end of the guide inclined plate 1, and the upper end of the other side plate is connected to the lower end of the guide inclined plate 2. The guide inclined plate 1 and the guide inclined plate 2 are arranged opposite to each other, and the guide inclined plate 1 and the guide inclined plate 2 are respectively arranged to be inclined downward and inward from top to bottom.

7. A safety protection device for a boarding bridge according to claim 1 or 2 or 6, characterized in that: The guardrail is made of aluminum profiles, rectangular tubes or steel plates.

8. A safety protection device for a boarding bridge according to claim 1 or 2 or 6, characterized in that: The driving mechanism is arranged in a box body, and the box body is fixed to one side of the receiving port frame; A left opening slot for facilitating the passage of the active rod and the driven rod is provided on the left side plate of the box body, and an upper opening slot communicating with the left opening slot is provided on the upper cover plate of the box body.

Images