Quick locking device applied to airport luggage trailer movable fence

Abstract

The utility model relates to the technical field of luggage trailers, in particular to a quick locking device applied to a movable fence of an airport luggage trailer, which comprises a trailer base body, protective fences are fixedly arranged at the two ends of the trailer base body in the length direction, and a side fixed fence and a movable fence are arranged at the two ends of the trailer base body in the width direction; any movable fence is rotationally connected to the trailer base body, lock catch bases are symmetrically arranged at the two ends, in the length direction, of any movable fence, the side fixed fences correspond to the lock catch bases in position and number, and any side fixed fence is provided with a quick locking structure matched with the corresponding lock catch base in a clamped mode. A worker only needs to turn over the movable fence upwards in place, the two ends of the movable fence can be synchronously locked, back-and-forth operation on the two ends of the movable fence is not needed, the operation time of locking the movable fence by the worker is shortened, the working efficiency is improved, and potential safety hazards caused by forgetting to operate one end are avoided.

Description

Technical Field

[0001] This application relates to the field of baggage trolley technology, and in particular to a quick-locking device for use on the movable railing of airport baggage trolleys. Background Technology

[0002] Airport baggage and cargo trolleys are essential equipment for ensuring the efficient transfer of baggage and cargo. The locking device of the movable railing on the baggage trolley is crucial for the safety of cargo transportation. It is necessary to ensure that the movable railing closes stably during transportation to prevent cargo from falling or shifting.

[0003] Currently, the locking devices for the movable railings of baggage and cargo trailers used in various airports mainly adopt the door hook or pin structure of the truck sideboard. The locking components of this type of device are located at both ends of the movable railing, and the opening and closing of the movable railing is achieved by operating the two ends independently.

[0004] However, since the locking components are located at both ends of the movable bar, operators need to operate on both ends separately when closing the movable bar, which increases the locking steps and time, making the operation cumbersome. If the operator forgets to lock only one end of the movable bar, it can easily cause safety problems, which is an area that needs improvement. Utility Model Content

[0005] To reduce the number of steps required for operators to close the movable railings and shorten the locking time of the movable railings on baggage trolleys, this application provides a quick locking device for use on the movable railings of airport baggage trolleys.

[0006] This application provides a quick-locking device for use on movable railings of airport baggage trolleys, employing the following technical solution:

[0007] A quick-locking device for use on movable railings of airport baggage trolleys includes a trolley base. Protective railings are fixedly installed at both ends of the trolley base along its length. Side fixed railings and movable railings are installed at both ends of the trolley base along its width. Any movable railing is rotatably connected to the trolley base. Locking seats are symmetrically arranged at both ends of the length of any movable railing. The side fixed railings are arranged in a position and number corresponding to the locking seats. Each side fixed railing is provided with a quick-locking structure that engages with the corresponding locking seat.

[0008] By adopting the above technical solution, the locking seat on the movable railing and the quick-locking structure on the side fixed railing are engaged to achieve a quick locking connection between the movable railing and the side fixed railing. This eliminates the traditional locking method that requires separate operation at both ends of the movable railing. The operator only needs to flip the movable railing upwards to lock both ends simultaneously, eliminating the need to go back and forth between the two ends of the movable railing. This shortens the operator's operation time for locking the movable railing, improves work efficiency, and avoids safety hazards caused by forgetting to operate one end.

[0009] Preferably, the quick-locking structure includes a connecting plate, a locking plate, a cover plate, a first bolt, a second bolt, and a connecting spring. The connecting plate is welded to the side fixing rail. The locking plate has a first vertical groove and a second vertical groove on the same vertical line. The locking plate also has an oblique groove that communicates with the first vertical groove.

[0010] The first bolt passes through the cover plate and the locking plate in sequence and is threadedly connected to the connecting plate. When in use, the first bolt is locked to the top of the first vertical groove or the top of the inclined groove. The second bolt passes through the cover plate and the second vertical groove in sequence and is threadedly connected to the connecting plate. One end of the connecting spring is connected to the first bolt and the other end is connected to the bottom of the first vertical groove. The locking seat is provided with a locking hole for engaging with the locking plate.

[0011] By adopting the above technical solution, when the movable railing needs to be locked, the first bolt engages with the top of the inclined groove, and the operator flips the movable railing upwards. This causes the movable railing to gradually flip the locking seat upwards, and the locking seat slowly pushes the locking plate. The locking plate rotates towards the inside of the trailer base with the axis of rotation of the second bolt as the axis of rotation until the locking plate is in a vertical state. At this time, the first bolt is located in the first vertical groove of the locking plate, and the locking plate moves downwards as a whole under the elastic force of the connecting spring. When the lower end of the locking plate engages with the locking hole of the locking seat, and the first bolt engages with the top of the first vertical groove, the upward flipping action of the movable railing is completed, and the locking is achieved.

[0012] When the movable bar needs to be opened, the staff lifts the locking plate upwards. At this time, the connecting spring is compressed, causing the locking plate to rotate outwards from the trailer base around the axis of the second bolt until the first bolt engages with the top of the inclined groove again. Then, the same operation is performed on the locking plate near the other end of the movable bar, and the opening and unlocking action of the movable bar is completed. The staff then flips the movable bar downwards to facilitate the handling of subsequent luggage.

[0013] Preferably, the latch seat includes an integrally formed fixing plate, a snap-fit ​​plate, and a protective plate for protecting the quick-locking structure when locked. The fixing plate is disposed on the guardrail, the snap-fit ​​plate is disposed perpendicular to the fixing plate, and the snap-fit ​​hole is disposed on the snap-fit ​​plate.

[0014] By adopting the above technical solutions, the protective plate can reduce the interference of external factors, such as luggage collisions, on the locking structure, extend the service life of the device, and ensure the long-term reliable operation of the locking device.

[0015] Preferably, a wedge-shaped block is provided on the side wall of the locking plate, and the fixing plate and the wedge-shaped surface on the wedge-shaped block form an abutting fit.

[0016] By adopting the above technical solution, during the upward flipping and closing process of the movable column, the fixed plate will naturally push the locking plate to flip inward along the wedge-shaped surface, without the need for additional manual adjustment, making the locking process smoother and reducing operational resistance.

[0017] Preferably, the top of the locking plate is provided with a lifting rod to facilitate the lifting of the locking plate by the staff.

[0018] By adopting the above technical solution, the lifting rod provides a convenient point of force for unlocking operations, reduces the difficulty for operators to lift the locking plate, makes the unlocking process more effortless and faster, and further improves work efficiency.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] By utilizing the locking seat on the movable railing and the quick-locking structure on the side fixed railing, a quick locking connection between the movable railing and the side fixed railing is achieved. This eliminates the traditional locking method that requires separate operation at both ends of the movable railing. The operator only needs to flip the movable railing upwards to lock both ends simultaneously, eliminating the need to travel back and forth between the two ends. This reduces the operator's locking time, improves work efficiency, and avoids safety hazards caused by forgetting to operate one end. Attached Figure Description

[0021] Figure 1 This is an isometric schematic diagram of the main overall structure in the embodiments of this application;

[0022] Figure 2 yes Figure 1 The image shows a magnified view of a section that primarily illustrates the rapid locking structure.

[0023] Figure 3 This is a diagram illustrating the internal structure of the locking plate when the activity bar is in a locked state, as shown in the embodiments of this application.

[0024] Figure 4 This is an exploded view of the connection relationship between the connecting plate, the locking plate, and the cover plate, which is the main embodiment of this application.

[0025] Figure 5 yes Figure 1 The image shows a magnified view of a portion of the locking seat structure.

[0026] Reference numerals: 1. Trailer base; 2. Guardrail; 3. Side fixed guardrail; 4. Movable guardrail; 5. Lock seat; 51. Fixing plate; 52. Snap-fit ​​plate; 521. Snap-fit ​​hole; 53. Guardrail; 6. Quick-locking structure; 61. Connecting plate; 62. Locking plate; 621. First vertical groove; 622. Second vertical groove; 623. Angled groove; 624. Wedge block; 625. Lifting rod; 63. Cover plate; 64. First bolt; 641. Connecting rod; 65. Second bolt; 66. Connecting spring. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail.

[0028] This application discloses a quick-locking device for use on the movable railing of airport baggage trolleys.

[0029] Reference Figure 1 A quick-locking device for use on movable railings of airport baggage trailers includes a trailer base 1. Protective railings 2 are vertically installed at both ends of the trailer base 1 in the length direction. Side fixed railings 3 and movable railings 4 are provided at both ends of the trailer base 1 in the width direction. The side fixed railings 3 are vertically installed at the four corners of the trailer base 1. Any movable railing 4 is rotatably connected to the trailer base 1 by a hinge. When the two movable railings 4 are flipped upward to the vertical state, the two protective railings 2, the two movable railings 4 and the four side fixed railings 3 form a loading area for placing baggage.

[0030] Reference Figure 1 Each movable barrier 4 has a locking seat 5 symmetrically arranged at both ends along its length. The locking seats 5 correspond to the positions and number of the side fixed barriers 3. Each side fixed barrier 3 is equipped with a quick-locking structure 6, and each locking seat 5 is locked to the corresponding side fixed barrier 3 by the quick-locking structure 6. In use, since the locking seats 5 and the corresponding quick-locking structures 6 at both ends of the movable barrier 4 are symmetrically arranged, the operator only needs to flip the movable barrier 4 upwards to the correct position, and the two ends of the movable barrier 4 can be locked synchronously by the locking structure. This not only shortens the operation time of closing the movable barrier 4 and improves work efficiency, but also avoids the safety hazards caused by forgetting to operate one end.

[0031] Reference Figure 1 and Figure 2 Since the four quick-locking structures 6 have the same structure and connection method, we will now take one of the quick-locking structures 6 as an example for explanation.

[0032] Reference Figure 1 and Figure 2The quick-locking structure 6 includes a connecting plate 61, a locking plate 62, a cover plate 63, a first bolt 64, and a second bolt 65. The connecting plate 61 is welded to the side fixing rail 3.

[0033] Reference Figure 2 and Figure 3 The locking plate 62 has a first vertical groove 621, a second vertical groove 622 and an inclined groove 623. The first vertical groove 621 and the second vertical groove 622 are located on the same vertical line, and the first vertical groove 621 is located above the second vertical groove 622. The inclined groove 623 is inclined towards the inside of the trailer, and the first vertical groove 621 and the inclined groove 623 are connected.

[0034] Reference Figure 2 and Figure 4 Both the first bolt 64 and the second bolt 65 are headless bolts. The first bolt 64 passes through the cover plate 63 and the locking plate 62 in sequence and is threaded to the connecting plate 61. The second bolt 65 passes through the cover plate 63 and the second vertical groove 622 in sequence and is threaded to the connecting plate 61. The end of the first bolt 64 near the cover plate 63 and the end of the second bolt 65 near the cover plate 63 are both connected with anti-loosening nuts and washers to prevent the locking plate 62 from falling off due to long-term use.

[0035] Reference Figure 2 and Figure 3 The workers can change the position of the first bolt 64 in the first vertical groove 621 and the inclined groove 623 by moving the position of the locking plate 62, so that the first bolt 64 can be locked with the top of the first vertical groove 621 or the top of the inclined groove 623 during use, thus ensuring the reliability of locking.

[0036] Reference Figure 2 and Figure 4 A connecting rod 641 is welded to the first bolt 64. The quick-locking structure 6 also includes a connecting spring 66. The upper end of the connecting spring 66 is sleeved on the connecting rod 641 of the first bolt 64, and the lower end of the connecting spring 66 is glued to the bottom of the first vertical groove 621, so that the connecting spring 66 can assist the locking plate 62 in resetting.

[0037] Reference Figure 1 and Figure 5 Since the four locking seats 5 have the same structure and connection method, we will now take one of the locking seats 5 as an example for explanation.

[0038] Reference Figure 1 and Figure 5 The locking seat 5 includes an integrally formed fixing plate 51, a snap-fit ​​plate 52, and a protective plate 53. The fixing plate 51 is welded to the guardrail 2, and the snap-fit ​​plate 52 is set perpendicular to the fixing plate 51. When the staff flips the movable railing 4 upward, the snap-fit ​​plate 52 flips with the movable railing 4. The snap-fit ​​plate 52 has snap-fit ​​holes 521.

[0039] Reference Figure 1 and Figure 5 By utilizing the protective plate 53, the protective plate 53 can reduce the interference of external factors, such as luggage collisions, on the locking structure, extend the service life of the device, and ensure the long-term reliable operation of the locking device.

[0040] Reference Figure 3 and Figure 5 A wedge-shaped block 624 is integrally formed on the side wall of the locking plate 62. The fixing plate 51 and the wedge-shaped surface on the wedge-shaped block 624 form an abutment fit. When it is necessary to lock the movable rail 4, the snap-fit ​​plate 52 flips upward with the movable rail 4. At the same time, the fixing plate 51 pushes the wedge-shaped block 624 on the locking plate 62, so that the locking plate 62 rotates inward about the axis of rotation of the second bolt 65 until the locking plate 62 is in a vertical state. At this time, the connecting spring 66 pulls the locking plate 62 downward, so that the lower end of the locking plate 62 is inserted into the snap-fit ​​hole 521. At the same time, the first bolt 64 is engaged with the top of the first vertical groove 621, thereby completing the locking of the movable rail 4.

[0041] Reference Figure 3 and Figure 5 When the movable barrier 4 needs to be opened, the operator drives the locking plate 62 to move upward until it gets stuck. At this time, the locking plate 62 disengages from the locking hole 521, and the second bolt 65 is located at the bottom of the second vertical groove 622. Then, the operator drives the locking plate 62 to rotate outward, so that the first bolt 64 re-engages into the top of the inclined groove 623. After performing the same operation on the locking plate 62 at the other end of the movable barrier 4, the movable barrier 4 can be flipped down to unlock it.

[0042] Reference Figure 2 and Figure 4 A lifting rod 625 is welded to the top of the locking plate 62. The lifting rod 625 provides a convenient force point for unlocking operations, reduces the difficulty for operators to lift the locking plate 62, makes the unlocking process more effortless and faster, and further improves work efficiency.

[0043] The implementation principle of this application embodiment is as follows: when the active bar 4 is in the open state, the first bolt 64 is engaged with the top of the inclined groove 623, the second bolt 65 is located at the bottom of the second vertical groove 622, and the connecting spring 66 is in the compressed state at this time.

[0044] When the movable railing 4 needs to be locked, the operator flips the movable railing 4 upwards, which causes the fixed plate 51 and the snap-fit ​​plate 52 to gradually flip upwards. The fixed plate 51 then slowly pushes the wedge block 624 on the locking plate 62. The locking plate 62 rotates towards the inside of the trailer base 1 with the axis of rotation of the second bolt 65 as the axis of rotation until the locking plate 62 is in a vertical state. At this time, the first bolt 64 is located in the first vertical groove 621 of the locking plate 62, and the locking plate 62 moves downwards as a whole under the elastic force of the connecting spring 66. When the lower end of the locking plate 62 is engaged in the snap-fit ​​hole 521 of the snap-fit ​​plate 52, and the first bolt 64 is engaged with the top of the first vertical groove 621, the upward flipping action of the movable railing 4 is completed, realizing the synchronous locking of both ends of the movable railing 4.

[0045] When the movable railing 4 needs to be opened, the staff lifts the locking plate 62 upwards using the lifting rod 625, causing the locking plate 62 to disengage from the snap-fit ​​hole 521. At this time, the connecting spring 66 is in a compressed state, and the second bolt 65 is located at the bottom of the second vertical groove 622, causing the locking plate 62 to rotate outwards from the trailer base 1 with the axis of rotation of the second bolt 65 as the axis of rotation until the first bolt 64 snaps into the top of the inclined groove 623 again. Then, the same operation is performed on the locking plate 62 near the other end of the movable railing 4, and the opening and unlocking action of the movable railing 4 is completed. Thus, the staff flips the movable railing 4 downwards to facilitate the handling of subsequent luggage.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-locking device for use on the movable railing of airport baggage trolleys, characterized in that: The system includes a trailer base (1), with guardrails (2) fixedly installed at both ends of the trailer base (1) along its length. Side fixed rails (3) and movable rails (4) are installed at both ends of the trailer base (1) along its width. Any of the movable rails (4) is rotatably connected to the trailer base (1). Locking seats (5) are symmetrically arranged at both ends of the length of any of the movable rails (4). The side fixed rails (3) are arranged in the position and number corresponding to the locking seats (5). Any of the side fixed rails (3) is provided with a quick-locking structure (6) that forms a snap-fit ​​with the corresponding locking seat (5).

2. The quick-locking device for use on the movable railing (4) of an airport baggage trolley according to claim 1, characterized in that: The quick-locking structure (6) includes a connecting plate (61), a locking plate (62), a cover plate (63), a first bolt (64), a second bolt (65), and a connecting spring (66). The connecting plate (61) is welded to the side fixing rail (3). The locking plate (62) has a first vertical groove (621) and a second vertical groove (622) on the same vertical line. The locking plate (62) also has an oblique groove (623) that communicates with the first vertical groove (621). The first bolt (64) passes through the cover plate (63) and the locking plate (62) in sequence and is threadedly connected to the connecting plate (61). When in use, the first bolt (64) is locked to the top of the first vertical groove (621) or the top of the inclined groove (623). The second bolt (65) passes through the cover plate (63) and the second vertical groove (622) in sequence and is threadedly connected to the connecting plate (61). One end of the connecting spring (66) is connected to the first bolt (64), and the other end is connected to the bottom of the first vertical groove (621). The locking seat (5) is provided with a locking hole (521) for engaging with the locking plate (62).

3. A quick-locking device for use on the movable railing (4) of an airport baggage trolley according to claim 2, characterized in that: The latch seat (5) includes an integrally formed fixing plate (51), a snap-fit ​​plate (52), and a protective plate (53) for protecting the quick-locking structure (6) when locked. The fixing plate (51) is set on the guardrail (2), the snap-fit ​​plate (52) is set perpendicular to the fixing plate (51), and the snap-fit ​​hole (521) is set on the snap-fit ​​plate (52).

4. A quick-locking device for use on the movable railing (4) of an airport baggage trolley according to claim 3, characterized in that: A wedge block (624) is provided on the side wall of the locking plate (62), and the fixing plate (51) and the wedge surface on the wedge block (624) form an abutting fit.

5. A quick-locking device for use on the movable railing (4) of an airport baggage trolley according to claim 2, characterized in that: The top of the locking plate (62) is provided with a lifting rod (625) to facilitate the lifting of the locking plate (62) by the staff.

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