An airport trolley blocking structure

Abstract

The utility model discloses an airport trolley blocking structure belongs to airport ground equipment technical field, aims at solving the problem that the maintenance and safety of existing blocking structure are difficult to take into account, and it includes blocking component, fixed frame, hollow fixed bolt and stable component with the axial movement card column, and blocking component is detachably fixed in fixed frame through fixed bolt, under the action of spring biasing force, and card column inserts the hollow inside of fixed bolt, and through the non - circular cooperation with hollow inner wall to limit bolt rotation, at the same time, the bolt head is equipped with non - general drive structure, constitutes double locking, not only can effectively prevent luggage slide, still through double locking design, solved the maintenance convenience and public security against theft technical contradiction, the structure is extremely stable and reliable, can effectively resist vibration and unauthorized dismantling, and the service life of equipment is prolonged significantly.

Description

Technical Field

[0001] This utility model relates to the field of airport ground equipment technology, and in particular to an airport handcart blocking structure. Background Technology

[0002] Airport baggage trolleys are an indispensable tool for passengers to transport their luggage short distances within the terminal. Common trolleys usually have a flat or slightly inclined platform for placing various types of luggage. However, in actual use, due to the movement and turning of the trolley and uneven ground, luggage placed on the platform, especially small or unstable luggage, is at risk of slipping off the back of the platform. This not only inconveniences passengers but may also damage the luggage.

[0003] To address this issue, some improvements have emerged in existing technologies, namely, installing a fixed blocking structure at the rear of the trolley's support platform, such as a one-piece molded baffle or a welded metal rod. While this design can prevent luggage from slipping to some extent, it also introduces new problems. As a frequently used public facility, airport trolleys are highly susceptible to deformation or damage to their blocking structures due to collisions or improper use. For such permanently fixed (e.g., welded) blocking structures, once damaged, the repair or replacement process becomes extremely complex and difficult, typically requiring specialized cutting and welding equipment, which is time-consuming and labor-intensive, and causes the trolley to be out of service for extended periods, significantly increasing the airport's operating and maintenance costs.

[0004] For ease of maintenance, another option is to use conventional bolts and nuts to fix the blocking structure to the vehicle body. While this makes disassembly and replacement relatively easy, it introduces new security risks. Since airports are open public environments, structures using standard fasteners are easily disassembled by non-professionals using ordinary tools. This not only leads to the loss or theft of parts but also poses a risk of vandalism, thus reducing the integrity and security of the trolley. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an airport trolley blocking structure, which aims to improve the problem that the existing airport trolley blocking structures are difficult to maintain after damage due to the use of permanent fixing methods.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An airport trolley blocking structure includes: an airport trolley, a support platform mounted on the airport trolley, a fixing frame mounted on the body of the airport trolley, and a blocking assembly mounted on the support platform; the blocking assembly includes a blocking frame and a connecting cylinder fixedly connected to the blocking frame; and hollow fixing bolts and stabilizing components.

[0007] The stabilizing component includes a locking pin that can move along its axial direction.

[0008] The fixing bolt passes through the fixing frame and is threadedly connected to the connecting cylinder to fix the blocking component to the fixing frame; the locking pin of the stabilizing component is inserted into the hollow interior of the fixing bolt, and the rotation of the fixing bolt is restricted by the cooperation between the locking pin and the hollow inner wall.

[0009] Preferably, the blocking assembly further includes a fixing plate, the blocking frame is fixedly connected to the fixing plate, and the fixing plate is fixedly connected to the connecting cylinder, thereby forming an integral replaceable module.

[0010] Preferably, the stabilizing component further includes a connecting disc and a pull ring, the pull ring being connected to the connecting disc, and the connecting disc being fixedly connected to the top of the locking post for convenient axial pulling operation of the locking post.

[0011] Preferably, the stabilizing component further includes a fixing ring, a spring, and a connecting ring fixedly connected to the bottom of the locking post; the spring is sleeved on the outside of the locking post, and the two ends of the spring abut against the fixing ring and the connecting ring respectively.

[0012] Preferably, the spring applies a continuous biasing force to the locking pin so that the locking pin remains in the locked position inside the hollow of the insertion fixing bolt in its natural state.

[0013] Preferably, the hollow interior of the locking pin and the fixing bolt has a non-circular mating structure to ensure that relative rotation between the two cannot occur.

[0014] Preferably, the head of the fixing bolt is provided with a non-universal drive structure for use with a specific tool, thereby increasing the difficulty of unauthorized disassembly.

[0015] Preferably, the blocking component is disposed at the rear end of the support platform.

[0016] This utility model has the following beneficial effects: 1. In this utility model, by setting a sturdy blocking structure, small luggage placed by passengers on the trolley's carrying platform is prevented from slipping off the rear end when pushed, turned, or passing over bumpy roads, thus ensuring the safety of passengers' property and improving the user experience.

[0017] 2. In this utility model, when the blocking structure needs to be repaired or replaced, it can be quickly disassembled and reassembled, which greatly reduces the maintenance difficulty and time cost. Its double locking structure prevents unauthorized disassembly, theft or malicious damage by non-staff members, ensuring the integrity and high availability of airport equipment. Attached Figure Description

[0018] Figure 1 A three-dimensional schematic diagram of an airport trolley blocking structure proposed in this utility model; Figure 2 for Figure 1 Enlarged structural diagram at point A in the diagram; Figure 3 This is a schematic diagram of the blocking frame structure of an airport handcart blocking structure proposed in this utility model; Figure 4 This is a schematic diagram of the fixing bolt structure of an airport handcart blocking structure proposed in this utility model; Figure 5 This is a schematic diagram of the locking post structure of an airport handcart blocking structure proposed in this utility model.

[0019] Legend: 1. Handcart; 2. Support platform; 3. Blocking assembly; 301. Blocking frame; 302. Connecting cylinder; 303. Fixing plate; 304. Fixing bracket; 305. Fixing bolt; 4. Stabilizing assembly; 401. Locking post; 402. Connecting plate; 403. Pull ring; 404. Fixing ring; 405. Spring; 406. Connecting ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-5 This utility model provides an embodiment of an airport trolley blocking structure, including an airport trolley 1, a support platform 2 mounted on the airport trolley 1, a blocking component 3 installed at the rear end of the support platform 2, and a fixing frame 304 fixedly mounted on the body of the airport trolley 1. The blocking component 3 includes a blocking frame 301, a fixing plate 303 fixedly connected to the blocking frame 301, and a connecting cylinder 302 fixedly connected to the fixing plate 303. The blocking frame 301, the fixing plate 303, and the connecting cylinder 302 together constitute a modular assembly that can be disassembled as a whole. The structure also includes a hollow fixing bolt 305 and a stabilizing component 4. The stabilizing component 4 includes an axially movable locking post 401, a connecting plate 402 fixedly connected to the top of the locking post 401, a pull ring 403 movably connected to the connecting plate 402, a fixing ring 404 sleeved on the outside of the locking post 401, a spring 405 sleeved on the outside of the locking post 401 and located below the fixing ring 404, and a connecting ring 406 fixedly connected to the bottom of the locking post 401.

[0022] The fixing bracket 304 has a through hole for the fixing bolt 305 to pass through. The inner wall of the connecting cylinder 302 has an internal thread. The fixing bolt 305 is a hollow structure with an external thread on its outer wall that mates with the internal thread of the connecting cylinder 302. Its head has a non-universal drive structure for mates with specific tools, such as a triangular hole or a polygonal groove. In the assembled state, the fixing bolt 305 passes through the through hole of the fixing bracket 304 and is screwed into the internal thread of the connecting cylinder 302 in a threaded connection, thereby detachably fastening the entire blocking assembly 3 to the fixing bracket 304. The cross-sectional shape of the post 401 is adapted to the cross-sectional shape of the hollow interior of the fixing bolt 305, and the two form a non-circular mating structure, such as a square or hexagonal mating, so that the post 401 can only slide axially inside the hollow interior of the fixing bolt 305 and cannot rotate relative to it. The two ends of the spring 405 abut against the lower end face of the fixing ring 404 and the upper end face of the connecting ring 406, respectively. In the natural state, the spring 405 applies a continuous axial biasing force to the post 401, keeping the post 401 in the locked position inserted into the hollow interior of the fixing bolt 305.

[0023] Working principle: In the locked state during normal use, the spring 405 in the stabilizing component 4 is in a naturally extended or slightly pre-compressed state. Its elastic force continuously applies a downward axial thrust to the locking post 401 through the connecting ring 406. Under the action of this thrust, the rod part of the locking post 401 is completely inserted into the hollow interior of the fixing bolt 305. Since the outer peripheral section of the locking post 401 and the hollow inner wall section of the fixing bolt 305 are non-circular, such as square or hexagonal, relative rotation between the two is not possible. Therefore, the fixing bolt 305 is effectively locked by the locking post 401 and cannot be accidentally or maliciously rotated. This ensures that the fixing bolt 305 always securely connects the connecting cylinder 302 to the fixing frame 304. This ensures that the entire blocking component 3 remains stable and reliable when subjected to external forces such as collisions with passenger luggage and bumps during trolley movement, effectively performing its function of preventing luggage from slipping.

[0024] In the unlocked and disassembled state when maintenance or replacement of the blocking assembly 3 is required, the operator first pulls the pull ring 403 on the stabilizing assembly 4 upwards. The pull ring 403 drives the locking post 401 to move axially upwards against the elastic force of the spring 405 through the connecting plate 402. During the upward movement of the locking post 401, the connecting ring 406 at its bottom will squeeze and compress the spring 405 upwards. When the locking post 401 is completely pulled out from the hollow interior of the fixing bolt 305, the rotation lock of the fixing bolt 305 is released. At this time, the operator needs to use a specific tool that matches the non-general drive structure of the head of the fixing bolt 305 to rotate the fixing bolt 305 so that its thread structure is unscrewed from the internal threads of the fixing frame 304 and the connecting cylinder 302. When the fixing bolt 305 is completely removed, the connecting cylinder 302 is completely separated from the fixing frame 304. Finally, the entire blocking assembly 3, including the blocking frame 301 and the fixing plate 303, which are fixed to the connecting cylinder 302, can be removed from the trolley 1, thus completing the disassembly.

Claims

1. An airport trolley blocking structure, comprising: Airport trolley (1), the airport trolley (1) is equipped with a support platform (2); The blocking assembly (3) is provided on the support platform (2), and the blocking assembly (3) includes a blocking frame (301) and a connecting cylinder (302) fixedly connected to the blocking frame (301). A mounting bracket (304) is installed on the body of the airport trolley (1); Its characteristic is that it further includes: The blocking structure also includes hollow fixing bolts (305) and stabilizing components (4); The fixing bolt (305) passes through the fixing frame (304) and is threadedly connected to the connecting cylinder (302); The stabilizing component (4) includes an axially movable locking post (401) inserted into the hollow interior of the fixing bolt (305) to restrict the rotation of the fixing bolt (305).

2. An airport trolley blocking structure according to claim 1, wherein: The blocking assembly (3) further includes a fixing plate (303), the blocking frame (301) is fixedly connected to the fixing plate (303), and the fixing plate (303) is fixedly connected to the connecting cylinder (302).

3. An airport trolley blocking structure according to claim 1, wherein: The stabilizing component (4) further includes a connecting plate (402) and a pull ring (403), the pull ring (403) being connected to the connecting plate (402), and the connecting plate (402) being fixedly connected to the top of the locking post (401).

4. An airport trolley blocking structure according to claim 1, wherein: The stabilizing component (4) further includes a fixing ring (404), a spring (405), and a connecting ring (406) fixed to the bottom of the locking post (401). The spring (405) is sleeved on the outside of the locking post (401), and the two ends of the spring (405) abut against the fixing ring (404) and the connecting ring (406) respectively.

5. An airport trolley blocking structure according to claim 4, wherein: The spring (405) applies a biasing force to the locking post (401) so that the locking post (401) is held inside the hollow of the fixing bolt (305).

6. An airport trolley blocking structure according to claim 1, wherein: The hollow interior of the locking post (401) and the fixing bolt (305) is a non-circular mating structure.

7. An airport trolley blocking structure according to claim 1, wherein: The head of the fixing bolt (305) is provided with a non-universal drive structure for use with specific tools.

8. An airport trolley blocking structure according to claim 1, wherein: The blocking component (3) is disposed at the rear end of the support platform (2).

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