Straight arm guide device of sliding plug door

Abstract

The utility model belongs to the technical field of rail transit vehicle accessories, and particularly relates to a straight arm guide device of a sliding plug door, which mainly structurally comprises a sliding block base, a sliding block arranged on the sliding block base, a roller arranged on the sliding block, a push-and-pull rotating plate, a limiting pin and a push-and-pull pin shaft arranged on the push-and-pull rotating plate, the sliding block base is arranged on the fixed support through the fixing bolt, the push-pull rotating plate is arranged on the sliding block base through the rotating pin shaft, the two limiting pins are arranged on the two sides of the push-pull rotating plate, the push-pull pin shaft is arranged on the push-pull rotating plate through the connecting plate, and the push-pull rotating plate rotates under the transmission effect of the push-pull rod. The sliding block slides back and forth in the width direction of the vehicle body, the sliding block is matched with the rolling wheel, the vehicle door further moves in the width direction of the vehicle and in the front-back direction of the vehicle and is coordinated and consistent with the action of the upper portion of the door leaf, and synchronous opening and closing are achieved.

Description

Technical field:

[0001] The utility model belongs to the technical field of rail transit vehicle accessories, and in particular relates to a plug-and-slide door straight-arm guide device, which is applicable to door systems of various rail vehicles. Background technology:

[0002] With the acceleration of urbanization and the continuous improvement of the rail transit system, the passenger flow of urban rail transit has gradually increased, and the requirements for the practicality and safety of urban rail transit plug doors have become increasingly stringent.

[0003] In order to meet the requirements of door system performance during train operation, a novel structure of electric double-opening plug sliding door system for rail trains has been applied. For example, Chinese patent 201911286019.6 discloses a door structure of a rail vehicle, including: a pair of door panels, which adopt an aluminum alloy frame welding structure, an aluminum profile frame inside, and a fireproof material filled in the gap; a door frame, which is wrapped around each door panel and has a sealing brush installed on the upper edge; a movable window, which is located on the upper part of each door panel and has safety glass installed therein, wherein, The periphery of each door panel is covered with a sealing strip made of a magnetic rubber strip. The magnetic rubber strip is obtained by adding 26% powdered magnetic material to a rubber polymer. The hardness of the upper part of the docking strip of each door panel is enhanced and is vulcanized into a whole with the docking strip at the lower part. The fireproof material is aluminum honeycomb fireproof material, and the safety glass is double-layer hollow tempered safety glass. An anti-wear guide block is installed at the bottom of each door panel. The guide block is made of nylon. The movable window can be opened or closed in stages by operating the graded lock on the movable window. Chinese Patent No. 200710131437.9 discloses an electric double-opening plug sliding door system for railway trains, in which a load-bearing drive mechanism is installed on the upper part of the car body, and the door leaf is connected to the load-bearing drive mechanism through a door carrying frame; the drive shafts on both sides of the door are connected to the small hangers of the load-bearing drive mechanism through hinge plates, and are connected to the locking device at the middle and lower part of the door and then installed on both sides of the car body, and the rollers in the lower swing arm mechanism are in the lower guide rail at the lower part of the door; the external operating device installed on the outside of the car body and the emergency operating device installed on the inside of the car body are connected to the locking device through steel wire ropes; the lock block on the door leaf is correspondingly arranged with the lock hook on the locking device, the upper slide in the load-bearing drive mechanism is installed on the base plate, the left and right short guide posts on both sides of the upper slide are respectively installed on the base plate through brackets, a hanger is installed on each of the left and right short guide posts, and the two A rectangular guide rail is connected between the brackets. The drive shafts on both sides of the door are connected to the small brackets of the bearing drive mechanism through hinge plates. They are also connected to the auxiliary clamping device in the upper middle part of the door and then installed on both sides of the vehicle body. The lock block on the door leaf is corresponding to the lock hook on the auxiliary clamping device. The auxiliary clamping device bracket in the auxiliary clamping device is equipped with an auxiliary clamping block. The gear on the auxiliary clamping block meshes with the reversing gear. The drive shaft is connected to the adjustment gear. The reversing gear meshes with the adjustment gear to achieve auxiliary locking and clamping of the door. The adjustment gear in the locking device is connected to the drive shaft. The adjustment gear meshes with the reversing gear. The gear with the lock hook meshes with the reversing gear. The gear with the lock hook is connected to the toothed electromagnetic clutch with a toothed disk. The isolation lock is installed on the door leaf and corresponds to the lock block assembly on the vehicle body. It can be seen that the bearing drive mechanism is installed on the upper part of the vehicle body. The door leaf is connected to the drive mechanism through the door carrier. The multi-stage locking device increases the safety and reliability of the door system. As more and more people flock to cities, commuting demand has surged. In order to meet passengers' demand for quick boarding and alighting, vehicles need to open and close quickly to improve passenger flow efficiency.There are two main types of plug movement trajectories for plug-in doors in the prior art, one is to insert along a 35° direction, and the other is to insert vertically along a 90° direction.

[0004] The restraint and motion guidance system for sliding doors that slide in at a 35-degree angle typically consists of a three-roller swing-arm guideway, a balancing wheel, and a lower stop pin. The sliding door slides at a 35-degree angle to the side of the train compartment. When opened, the door tilts, resulting in a relatively narrow passageway and slow opening and closing, which impacts passenger flow. The restraint and motion guidance system for sliding doors that slide in at a 90-degree angle typically consists of a single-roller vertical swing-arm guideway driven by a vertical synchronization rod and a fixed restraint along the length of the train. When opened, the door slides against the side of the train compartment, fully opening and exposing the door to the outside. This provides greater access and egress space, making it ideal for rapid boarding and alighting during peak hours and improving passenger flow. However, the door occupies a significant amount of space, impacting the interior layout. Therefore, a straight-arm guide device for sliding doors has been developed to minimize space usage while maintaining rapid door opening and closing speeds. Summary of the invention:

[0005] The purpose of the utility model is to overcome the shortcomings of the existing technology and to develop a straight arm guide device for a sliding door with a small space occupancy rate, so as to guide the movement of the door leaf in the vertical direction, prevent the door leaf from deflecting or shaking, and enable the sliding door to be opened and closed quickly.

[0006] In order to achieve the above-mentioned purpose, the main structure of the straight arm guide device of the plug sliding door involved in the utility model includes a sliding block base and a sliding block arranged on it, a roller, a push-pull rotating plate and a limit pin arranged on the sliding block, and a push-pull pin shaft arranged on the push-pull rotating plate;

[0007] Wherein, the sliding block base is set on the fixed support through fixing bolts;

[0008] The push-pull rotating plate is arranged on the sliding block base through a rotating pin;

[0009] There are two limit pins, which are set on the left and right sides of the push-pull rotating plate;

[0010] The push-pull pin shaft 7 is arranged on the push-pull rotating plate through a connecting plate, and the connecting plate is arranged on the push-pull rotating plate through a fixing rivet.

[0011] The sliding block base and the sliding block of the utility model are engaged with each other in a dovetail manner.

[0012] The straight arm guide device of the plug sliding door involved in the utility model is made of steel 06Cr19Ni10, which has good strength, wear resistance and fatigue resistance;

[0013] When in use, install the fixed support on the vehicle body;

[0014] When the Sierra door is opened: the push-pull pin is pulled by the push-pull rod to drive the push-pull rotating plate to rotate counterclockwise around the rotating pin, so that the push-pull rotating plate pushes the limit pin fixed on the front of the sliding block, and the sliding block slides forward, driving the roller to push the Sierra door leaf out, and the lower and upper parts move in conjunction. The sliding block takes 0.5 seconds to slide out, which meets the requirements of high-frequency and rapid door opening.

[0015] Compared with the prior art, the push-pull rotating plate of the utility model rotates clockwise or counterclockwise around the rotating pin shaft under the transmission action of the push-pull rod, and interacts with the limit pin to make the sliding block 3 slide back and forth in the width direction of the vehicle body. The sliding block and the roller cooperate to further move the door in the width direction of the vehicle and the front and rear direction of the vehicle, coordinated with the upper movement of the door leaf, and realized synchronous opening and closing, utilizing the smallest possible space on the train or within a limited space to maximize the opening size of the Sierra door, and the insertion and ejection directions of the door leaf are both 90°; its structure is simple, easy to maintain and overhaul, simplified the overall structure, improved the stress situation, reduced the working load, reduced space occupancy, and realized the rapid opening and closing of the Sierra door. Description of the drawings:

[0016] Figure 1 This is a schematic diagram of the main structural principle of the utility model.

[0017] Figure 2 This is an exploded view of the main structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the sliding opening state of the utility model. Specific implementation method:

[0019] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0020] Example 1:

[0021] The main structure of a straight arm guide device for a plug-type sliding door involved in this embodiment is as follows Figure 1-2 As shown, it includes a fixed support 1, a sliding block base 2, a sliding block 3, a roller 4, a push-pull rotating plate 5, a limit pin 6, a push-pull pin shaft 7, a rotating pin shaft 8, a connecting plate 9, a fixing bolt 10 and a fixing rivet 11; the sliding block base 2 is provided on the fixed support 1, and the sliding block base 2 is connected to the sliding block 3;

[0022] A roller 4 is provided at the end of the sliding block 3, and a push-pull rotating plate 5 and two left and right limit pins 6 are provided in the middle; a push-pull pin 7 is provided on the push-pull rotating plate 5, which passes through the sliding block 3 through the rotating pin 8 and is provided on the sliding block base 2; the push-pull pin 7 is provided on the push-pull rotating plate 5 through the connecting plate 9; wherein, the sliding block base 2 is provided on the fixed support 1 through the fixing bolt 10, and the connecting plate 9 is provided on the push-pull rotating plate 5 through the fixing rivet 11.

[0023] The fixed support 1 involved in this embodiment is installed on the vehicle body;

[0024] The sliding block base 2 is mounted on the fixed support 1 by means of three fixing bolts 10 in a bolt-fastening manner;

[0025] The sliding block 3 moves relative to the fixed support 1 on the sliding block base 2 along the vehicle width direction;

[0026] The roller 4 is welded to the front end of the sliding block 3 and has a guiding function on the normal line of the sliding direction of the sliding block 3;

[0027] The limit pins 6 are fixed to the front and rear of the sliding block 3 in the form of threads, and cooperate with the push-pull rotating plate 5 to make the sliding block 3 slide;

[0028] The push-pull pin 7 is fastened to the connecting plate 9 by a thread, driving the push-pull rotating plate 5 to rotate around the rotating pin 8;

[0029] The left end of the rotating pin 8 is mounted on the push-pull rotating plate 5 through a nut, and the right end passes through the sliding block 3 and is fastened to the sliding block base 2 through a thread;

[0030] The connecting plate 9 is mounted on the push-pull rotating plate 5 via two fixing rivets 11 .

[0031] The straight arm guide device for a sliding plug door involved in this embodiment has the following advantages:

[0032] (1) The sliding block 3 cooperates with the roller 4 to realize the rapid ejection and insertion of the sliding door leaf 13, reducing the friction and wear between the door leaf 13 and the vehicle body. Under the condition of small friction force, rapid movement is achieved, and inertia is reduced. When starting and stopping, the sliding block 3 can accelerate and decelerate faster, thereby improving the overall movement speed;

[0033] (2) The contact mode between the sliding block 3 and the sliding block base 2 makes the movement of the sliding block 3 smooth, reduces vibration and noise, and the sliding block 3 can move within a limited space, reducing the space occupied by the overall structure, making the overall structure simple and compact, reducing the installation and debugging workload, improving installation efficiency, and facilitating daily maintenance and overhaul;

[0034] (3) The push-pull rotating plate 5 can efficiently convert the push-pull force transmitted by the push-pull rod 13 into the sliding force of the sliding block 3, thereby improving the stress condition and reducing the internal working load.

Claims

1. A straight arm guide device for a plug sliding door, characterized in that: The main structure includes a sliding block base and a sliding block arranged on it, a roller, a push-pull rotating plate and a limit pin arranged on the sliding block, and a push-pull pin shaft arranged on the push-pull rotating plate. The roller is arranged at the end of the sliding block, and the push-pull rotating plate is arranged on the sliding block base through the rotating pin shaft. There are two limit pins, which are arranged on the left and right sides of the push-pull rotating plate. The push-pull pin shaft is arranged on the push-pull rotating plate through a connecting plate.

2. The straight arm guide device for a plug sliding door according to claim 1, characterized in that: The sliding block base is arranged on the fixed support through fixing bolts.

3. The straight arm guide device for a plug sliding door according to claim 2, characterized in that: The connecting plate is arranged on the push-pull rotating plate through fixing rivets.

4. The straight arm guide device for a sliding plug door according to any one of claims 1 to 3, characterized in that: The sliding block base and the sliding block are engaged with each other in a dovetail manner.

5. The straight arm guide device for sliding plug doors according to claim 4, characterized in that: The door leaf's insertion and ejection directions are both 90°.

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