Sliding plug door hanging and synchronizing structure

Abstract

The utility model provides a sliding plug door hanging and synchronizing structure, and belongs to the technical field of rail transit vehicle doors. The suspension device comprises a suspension main beam and vehicle door hangers fixed to the two ends of a suspension back plate, linear monorails are fixed to the inner sides of the two vehicle door hangers, the two ends of the suspension main beam synchronously slide along the linear monorails on the two sides, and linear guide rails which slide in the length direction of the suspension main beam and are used for suspending vehicle door components are fixed to the suspension main beam. Synchronous connecting rods are hinged to the outer sides of the two vehicle door hangers, a synchronous rod is fixed between the ends of the two synchronous connecting rods, and a synchronous rod fixing base arranged on the synchronous rod in a sleeving mode is fixed to the lower end of the hanging main beam. According to the sliding plug door hanging and synchronizing structure, the reliability of a vehicle door system is improved, the cost is reduced, the linear single rails on the two sides better limit the parallelism of the moving main beam, the stability of the vehicle door system is improved, the synchronizing rods are matched with the single rails, better hanging synchronization is achieved, the operation stability of the vehicle door system is improved, and the reliability of the vehicle door system is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transit vehicle doors, and particularly relates to a plug door suspension and synchronization structure. Background Technique

[0002] At present, the plug door is an important part of rail transit vehicles. The quality of the installation of its mechanical components determines the sealing performance and safety of the running of rail vehicles.

[0003] In order to meet the synchronization requirements, existing rail transit plug door products usually adopt a multi-guide column structure or a method of combining long and short guide columns with a synchronization rod. And its suspension method is a structure of a polished rod sleeve connecting the door driving arm. This method has the problem that the guide rails on both sides are prone to shaking during operation, resulting in poor stability when the door is opened and closed. Summary of the Invention

[0004] The purpose of the utility model is to provide a plug door suspension and synchronization structure, which has a simple structure and is convenient for installation.

[0005] The purpose of the utility model is realized as follows:

[0006] A plug door suspension and synchronization structure includes a suspension main beam and door hangers fixed at both ends of a suspension back plate. Linear single rails are fixed inside both door hangers. The two ends of the suspension main beam slide synchronously along the linear single rails on both sides. A linear guide rail for sliding along the length direction of the suspension main beam and for hanging door components is fixed on the suspension main beam. Synchronization connecting rods are hinged on the outer sides of both door hangers. A synchronization rod is fixed between the ends of the two synchronization connecting rods. A synchronization rod fixing seat sleeved on the synchronization rod is fixed at the lower end of the suspension main beam.

[0007] The utility model is further arranged such that a hinge stud is fixed on the outer side of the door hanger. An articulated notch is formed at the end of the synchronization connecting rod. The articulated notch includes an adjusting long slot and an installation notch arranged on one side of the adjusting long slot.

[0008] The utility model is further arranged such that the synchronization rod is a welded rod, and the two ends of the synchronization rod are fixed to the lower ends of the synchronization connecting rods in a plug-in fixing manner.

[0009] The utility model is further arranged such that the suspension main beam is a profile member, and installation holes for arranging plug door parts are formed on the suspension main beam.

[0010] The utility model is further arranged such that flanges are arranged on the outer edges at both ends of the suspension back plate, and the tops of the two door hangers are fixedly connected to the suspension main beam through bolts.

[0011] The utility model is further arranged such that the two linear single rails are located in the same horizontal plane and are parallel to each other.

[0012] The prominent and beneficial technical effects of the present utility model compared with the prior art are as follows:

[0013] 1. For the hanging and synchronization structure of the sliding plug door provided by the present utility model, by fixing the linear single rail at both ends of the hanging main beam and hanging the two side doors, a plugging action with better parallelism is achieved, and the structure is simple and convenient for installation; through the synchronizing rod fixing seat that performs the plugging action along with the synchronizing rod, the stability and reliability of the door can be improved.

[0014] 2. The present utility model opens a hinged notch on the synchronizing link. When the synchronizing rod cooperates with the hanging main beam to perform the plugging action, the end can be adjusted within a reasonable range during rotation, maintaining the plugging action of the synchronizing rod in the horizontal direction and improving the stability of the door system.

[0015] 3. In the present utility model, a welding rod is used as the synchronizing rod, and the accuracy on both sides is more accurate, and the installation dimensions are guaranteed; the hanging main beam made of profile parts can arrange each component of the sliding plug door, facilitating installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the present utility model in the open door state;

[0018] Figure 3 is a schematic structural diagram of the present utility model in the closed door state;

[0019] Reference numerals:

[0020] 1 - Door hanging; 10 - Hinged stud; 2 - Hanging back plate; 20 - Flange; 3 - Hanging main beam; 4 - Linear guide rail; 5 - Linear single rail; 6 - Synchronizing rod; 7 - Synchronizing rod fixing seat; 8 - Synchronizing link; 80 - Adjusting long slot; 81 - Installation notch; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further describes the present utility model with specific embodiments in conjunction with the drawings. See Figure 1 — Figure 3 :

[0022] A sliding plug door suspension and synchronization structure includes a suspension main beam 3 and door hangers 1 fixed at both ends of a suspension back plate 2. Linear single rails 5 are fixed inside both of the two door hangers 1. The two ends of the suspension main beam 3 slide synchronously along the linear single rails 5 on both sides. A linear guide rail 4 for sliding along the length direction of the suspension main beam 3 and for hanging door components is fixed on the suspension main beam 3. Synchronous connecting rods 8 are hinged on the outer sides of both of the two door hangers 1. A synchronous rod 6 is fixed between the ends of the two synchronous connecting rods 8. A synchronous rod fixing seat 7 sleeved on the synchronous rod 6 is fixed at the lower end of the suspension main beam 3.

[0023] During the implementation process, there are door closing and opening actions, specifically as follows.

[0024] The door components suspended on the linear guide rail 4 first slide along the linear guide rail 4 in the door closing direction. When reaching the plug section, under the combined action of the synchronous rod 6, the linear guide rail 4 then slides in the vehicle interior direction along the linear single rails 5 on both sides to complete the plug closing of the door, as Figure 3 shown.

[0025] During the door opening process, the door components follow the linear guide rail 4. Under the combined action of the synchronous rod 6, they first slide in the vehicle exterior direction along the linear single rails 5 on both sides. When sliding out of the plug section, they then slide in the door opening direction along the linear guide rail 4 to complete the door opening, as Figure 2 shown. A plug action with better parallelism is completed, thereby realizing the stable operation of the entire door system.

[0026] The suspension and synchronization structure in the above embodiment has a simple overall structure, can realize the stable operation of the entire door system, and ensures the safety and reliability of vehicle operation.

[0027] Preferably, an articulated stud 10 is fixed on the outer side of the door hanger 1. An articulated notch is formed at the end of the synchronous connecting rod 8. The articulated notch includes an adjustment long slot 80 and an installation notch 81 provided on one side of the adjustment long slot 80.

[0028] In the above structure, the synchronous connecting rod 8 will swing during the plug action. When swinging, in order to enable the bottom of the synchronous connecting rod 8 to perform linear motion, the articulated stud 10 needs to slide in the adjustment long slot 80 to ensure the stability of the plug action.

[0029] Preferably, the synchronous rod 6 is a welded rod, and the two ends of the synchronous rod 6 are fixed to the lower ends of the synchronous connecting rods 8 in a plug-in and fixed manner.

[0030] Preferably, the suspension main beam 3 is a profile member, and installation holes for arranging sliding plug door parts are formed on the suspension main beam 3.

[0031] Preferably, flanges 20 are provided at the outer edges of both ends of the suspension back plate 2, and the tops of the two door hangers 1 are fixedly connected to the suspension main beam 3 by bolts.

[0032] Preferably, the two linear monorails 5 are located on the same horizontal plane and are parallel to each other. The stability of the door lifting system is improved.

[0033] The above embodiments are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A plug door suspension and synchronization structure, characterized in that It includes a suspension main beam (3) and door hangers (1) fixed at both ends of a suspension back plate (2). Linear single rails (5) are fixed to the inner sides of the two door hangers (1). The two ends of the suspension main beam (3) slide synchronously along the linear single rails (5) on both sides. A linear guide rail (4) for sliding along the length direction of the suspension main beam (3) and for hanging door components is fixed to the suspension main beam (3). Synchronous connecting rods (8) are hinged to the outer sides of the two door hangers (1). A synchronous rod (6) is fixed between the ends of the two synchronous connecting rods (8). A synchronous rod fixing seat (7) sleeved on the synchronous rod (6) is fixed to the lower end of the suspension main beam (3).

2. The hanging and synchronization structure of a plug door according to claim 1, characterized in that An articulated stud (10) is fixed to the outer side of the door hanger (1). An articulated notch is formed at the end of the synchronous connecting rod (8). The articulated notch includes an adjusting long slot (80) and a mounting notch (81) provided on one side of the adjusting long slot (80).

3. The hanging and synchronization structure of a plug door according to claim 1, characterized in that, The synchronous rod (6) is a welded rod, and the two ends of the synchronous rod (6) are fixed to the lower ends of the synchronous connecting rods (8) in a plug-in fixing manner.

4. A sliding plug door suspension and synchronization structure according to claim 1, characterized in that, The suspension main beam (3) is a profile member, and mounting holes for arranging plug and pull door parts are formed in the suspension main beam (3).

5. A hanging and synchronization structure of a plug door according to claim 1, characterized in that, Flanges (20) are provided on the outer edges of both ends of the suspension back plate (2). The tops of the two door hangers (1) are fixedly connected to the suspension main beam (3) by bolts.

6. The hanging and synchronization structure of a plug door according to claim 1, characterized in that, The two linear single rails (5) are located in the same horizontal plane and are parallel to each other.

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