Airdock door positioning mechanism

Abstract

The utility model discloses a kind of air landing gate positioning mechanism, including gate machine, gate body and the drive mechanism being set in gate machine, transmission connection has gear transmission assembly between drive mechanism and gate body, gear transmission assembly includes main gear and auxiliary gear, limiting slot is opened on auxiliary gear, limiting block is fixedly arranged in gate machine, slot is provided on limiting block, slot is configured with the bolt that can be inserted into the slot;The rotation angle of auxiliary gear is limited by the cooperation of limiting slot and limiting block, and the position of auxiliary gear is locked in non-working state by the bolt.The utility model cooperates limiting slot and limiting block, realizes reliable stroke limiting in working state, prevents overrunning damage;By bolt locking mechanism, the mechanical fixation of non-working state is realized, and double safety guarantee is provided for transportation and maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of air-drop gate technology, and in particular relates to an air-drop gate positioning mechanism. Background Technology

[0002] Air-drop gates, a common type of access control equipment, typically use a motor drive in conjunction with a transmission mechanism to raise and lower the gate. To ensure operational safety, traditional air-drop gates have limit blocks at both ends of the transmission mechanism to physically prevent excessive gate rotation and avoid damage to the mechanism.

[0003] However, this fixed limiting structure has significant shortcomings in practical applications. Especially during equipment transportation and subsequent maintenance, the transmission mechanism can still move freely within the limiting range. Continuous vibrations during transportation cause the transmission components to repeatedly swing and collide within the limiting range. Over time, this can easily lead to loosening, deformation, or even damage to the limiting structure, affecting the equipment's accuracy and service life. Furthermore, the movable transmission mechanism poses safety hazards to operators during maintenance, increasing the difficulty and risk of repair work. To address these issues, a new air-drop gate positioning mechanism is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an air-dropped gate positioning mechanism to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a positioning mechanism for an air-dropped gate, comprising a gate mechanism, a gate body, and a drive mechanism disposed within the gate mechanism. A gear transmission assembly is connected between the drive mechanism and the gate body. The gear transmission assembly includes a main gear and a secondary gear. A limiting groove is formed on the secondary gear. A limiting block is fixedly disposed within the gate mechanism. A slot is provided on the limiting block, and a pin is disposed in the slot for insertion into the slot. The rotation angle of the secondary gear is limited by the cooperation between the limiting groove and the limiting block, and the position of the secondary gear is locked in the non-working state by the pin.

[0006] Preferably, the output end of the drive mechanism is fixedly connected to the main gear, the main gear meshes with the auxiliary gear, and the auxiliary gear is driven and connected to the gate body for transmission.

[0007] Preferably, the auxiliary gear is a partial gear, and its tooth arc segment corresponds to the preset lifting stroke of the gate body.

[0008] Preferably, the pin is a self-locking quick-release pin with an internal elastic buckle mechanism, and the peripheral side of the limiting block has a slot that cooperates with the elastic buckle mechanism.

[0009] Preferably, the elastic buckle mechanism includes a movable plate, a locking block, a tension spring, and a drive assembly. The movable plate is connected to the inner wall of the pin via the tension spring. The locking block is fixed to one end of the movable plate and can extend out of the side wall of the pin. The drive assembly is used to drive the movable plates on both sides to move towards each other, so that the locking block retracts into the pin.

[0010] Preferably, the driving assembly includes a pressing plate, a spring, a connecting rod, a connecting plate, and a pressing block. The pressing plate is elastically connected to the end of a pin via a spring. Both the pressing plate and the connecting plate are fixedly connected to the connecting rod. The connecting plate is disposed inside the pin. The pressing block is fixedly mounted on the connecting plate. The movable plate is provided with a ramp that cooperates with the inclined surface of the pressing block. The spring is used to provide the elastic force for the pressing plate to reset, thereby driving the pressing block to reset via the connecting rod and the connecting plate.

[0011] Preferably, a guide rod is also fixedly provided inside the pin, and the movable plate is sleeved on the guide rod and can slide along it.

[0012] Preferably, the gate housing has a socket corresponding to the slot, and the socket is provided with a removable plug.

[0013] This utility model has the following beneficial effects: 1. This utility model achieves reliable stroke limiting in the working state through the cooperation of the limiting groove and the limiting block, preventing damage from over-rotation; through the pin locking mechanism, it achieves mechanical fixation in the non-working state, providing double safety protection for transportation and maintenance. Furthermore, by setting the pin locking mechanism, the transmission system can be firmly locked in a safe position, eliminating wear and damage caused by component shaking and collision during transportation, and ensuring the factory precision and reliability of the equipment. 2. This utility model achieves a one-click locking function by setting a self-locking pin design. After insertion, it automatically locks and can achieve the functions of anti-vibration and anti-falling. Moreover, it can be pulled out simply by pressing, making the operation intuitive and convenient without the need for additional tools.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal transmission mechanism of the gate of this utility model; Figure 3 This is a schematic diagram of the transmission mechanism of this utility model after the baffle is removed; Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A; Figure 5 for Figure 3 A magnified schematic diagram of the local structure at point B; Figure 6 This is a cross-sectional view of the pin of this utility model. Figure 7 for Figure 6 A magnified schematic diagram of the structure at point C.

[0017] The components represented by each number in the attached diagram are listed below: 1. Gate; 2. Gate body; 3. Plug; 4. Drive mechanism; 5. Main gear; 6. Secondary gear; 7. Pin; 8. Limiting groove; 9. Limiting block; 10. Slot; 11. Tension spring; 12. Movable plate; 13. Locking block; 14. Guide rod; 15. Ramp; 16. Spring; 17. Pressing plate; 18. Connecting rod; 19. Connecting plate; 20. Pressing block. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Please see Figures 1-7 As shown, this utility model is a positioning mechanism for an air-dropped gate, including a gate 1, a gate body 2, and a drive mechanism 4 installed in the gate 1. The drive mechanism 4 serves as a power source, and its output end is fixedly connected to the main gear 5, driving the main gear 5 to rotate. The main gear 5 meshes with the auxiliary gear 6 to form a gear transmission assembly, transmitting power to the auxiliary gear 6 which is connected to the gate body 2, and finally driving the gate body 2 to complete the lifting and lowering movement.

[0021] The auxiliary gear 6 adopts a partial gear design, and the length of its tooth arc segment precisely corresponds to the preset lifting stroke required by the gate body 2. A limit groove 8 is opened on the auxiliary gear 6, and a limit block 9 is fixedly installed inside the gate 1. The limit block 9 is embedded in the limit groove 8. Through the cooperation between the arc contour of the limit groove 8 and the limit block 9, the maximum rotation angle of the auxiliary gear 6 is mechanically limited, thereby preventing the gate body 2 from running over the position.

[0022] A slot is axially provided on the limiting block 9, and a dedicated pin 7 is configured. A corresponding insertion hole is provided on the outer shell of the gate 1. The insertion hole is protected by a removable plug 3. When locking is required, the plug 3 can be removed and the pin 7 can be inserted into the slot. The pin 7 adopts a self-locking quick-release structure. It is equipped with a precision elastic buckle mechanism. The mechanism includes a symmetrically arranged movable plate 12, a locking block 13 fixed to one end of the movable plate 12, a tension spring 11 that provides a reset force, and a drive assembly. The movable plate 12 is connected to the inner wall of the pin 7 through the tension spring 11 and is sleeved on the guide rod 14 fixed inside the pin 7 to ensure its movement trajectory is accurate.

[0023] The drive assembly includes a pressing plate 17, a spring 16, a connecting rod 18, a connecting plate 19, and a pressing block 20. The pressing plate 17 is elastically connected to the end of the pin 7 via the spring 16. Both the pressing plate 17 and the connecting plate 19 are fixedly connected to the connecting rod 18. The connecting plate 19 is disposed inside the pin 7. The pressing block 20 is fixedly mounted on the connecting plate 19. The movable plate 12 is provided with a ramp 15 that cooperates with the inclined surface of the pressing block 20. The spring 16 is used to provide the elastic force for the pressing plate 17 to reset, thereby driving the pressing block 20 to reset via the connecting rod 18 and the connecting plate 19.

[0024] The drive assembly consists of a pressing plate 17, a spring 16, a connecting rod 18, a connecting plate 19, and a wedge-shaped pressing block 20. The two ends of the connecting rod 18 are fixedly connected to the pressing plate 17 and the connecting plate 19 located inside the pin 7, respectively. The pressing block 20 is fixed on the connecting plate 19. The inner side of the movable plate 12 is provided with a ramp 15, which cooperates with the ramp of the pressing block 20. The spring 16 acts on the pressing plate 17 to provide its reset elastic force.

[0025] Working principle: When the drive mechanism 4 drives the auxiliary gear 6 to rotate via the main gear 5, the fixed limiting block 9 slides relative to it within the limiting groove 8. The arc length of the limiting groove 8 determines the effective rotation range of the auxiliary gear 6. When the gate moves to the fully open position, the inner wall of one end of the limiting groove 8 contacts the limiting block 9, preventing the auxiliary gear 6 from continuing to rotate in the opening direction. When the gate moves to the fully closed position, the inner wall of the other end of the limiting groove 8 contacts the limiting block 9, preventing the auxiliary gear 6 from continuing to rotate in the closing direction. Through this limiting method, the rotation angle of the auxiliary gear 6 is limited, fundamentally preventing the gate body 2 from over-positioning and ensuring operational safety. When the pressing plate 17 is pressed, the connecting rod 18 connects to the connecting plate 19. The moving pressing block 20 moves forward, and its inclined surface presses against the slope 15 of the movable plate 12, causing the two movable plates 12 to move towards each other along the guide rod 14 against the tension of the tension spring 11. This causes the locking block 13 to retract into the pin 7. At this time, the pin 7 can be inserted into or pulled out of the slot of the limiting block 9. When the pin 7 is in place, the pressing plate 17 is released, the spring 16 pushes the drive assembly to reset, the pressing block 20 releases the pressure on the movable plate 12, the tension spring 11 pulls the movable plate 12 to reset, and the locking block 13 pops out and locks into the slot 10 on the side of the limiting block 9, realizing the automatic locking of the pin 7 and effectively preventing it from loosening under vibration. Through the above structure, the gate is reliably limited in the working state and safely locked in the non-working state.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A positioning mechanism for an air-dropped gate, comprising a gate mechanism (1), a gate body (2), and a drive mechanism (4) disposed within the gate mechanism (1), characterized in that: A gear transmission assembly is connected between the drive mechanism (4) and the gate body (2). The gear transmission assembly includes a main gear (5) and a secondary gear (6). A limit groove (8) is provided on the secondary gear (6). A limit block (9) is fixedly provided inside the gate (1). A slot is provided on the limit block (9). A pin (7) that can be inserted into the slot is provided in the slot. The rotation angle of the secondary gear (6) is limited by the cooperation of the limiting groove (8) and the limiting block (9), and the position of the secondary gear (6) is locked in the non-working state by the pin (7).

2. The air-dropped gate positioning mechanism according to claim 1, characterized in that, The output end of the drive mechanism (4) is fixedly connected to the main gear (5), the main gear (5) meshes with the auxiliary gear (6), and the auxiliary gear (6) is connected to the gate body (2) as a driven gear.

3. The air-dropped gate positioning mechanism according to claim 2, characterized in that, The auxiliary gear (6) is a partial gear, and its tooth arc segment corresponds to the preset lifting stroke of the gate body (2).

4. The air-dropped gate positioning mechanism according to claim 1, characterized in that, The pin (7) is a self-locking quick-release pin with an elastic buckle mechanism inside. The peripheral side of the limiting block (9) is provided with a slot (10) that cooperates with the elastic buckle mechanism.

5. The air-dropped gate positioning mechanism according to claim 4, characterized in that, The elastic buckle mechanism includes a movable plate (12), a locking block (13), a tension spring (11), and a drive assembly. The movable plate (12) is connected to the inner wall of the pin (7) through the tension spring (11). The locking block (13) is fixed to one end of the movable plate (12) and can extend out of the side wall of the pin (7). The drive assembly is used to drive the movable plates (12) on both sides to move towards each other, so that the locking block (13) retracts into the pin (7).

6. The air-dropped gate positioning mechanism according to claim 5, characterized in that, The driving assembly includes a pressing plate (17), a spring (16), a connecting rod (18), a connecting plate (19), and a pressing block (20). The pressing plate (17) is elastically connected to the end of the pin (7) via the spring (16). The pressing plate (17) and the connecting plate (19) are both fixedly connected to the connecting rod (18). The connecting plate (19) is located inside the pin (7). The pressing block (20) is fixedly installed on the connecting plate (19). The movable plate (12) is provided with a ramp (15) that cooperates with the inclined surface of the pressing block (20). The spring (16) is used to provide the elastic force for the pressing plate (17) to reset, thereby driving the pressing block (20) to reset via the connecting rod (18) and the connecting plate (19).

7. The air-dropped gate positioning mechanism according to claim 6, characterized in that, The pin (7) is also fixedly provided with a guide rod (14), and the movable plate (12) is sleeved on the guide rod (14) and can slide along it.

8. The air-dropped gate positioning mechanism according to claim 1, characterized in that, The gate (1) has a corresponding insertion hole on its outer shell, and a removable plug (3) is provided at the insertion hole.

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